Philosophy of Karl Marx Essay Example | Topics and Well Written Essays - 1250 words

Philosophy of Karl Marx - Essay Example Requisite for Marx's conclusions is first an explanation of human nature itself. The nature of a living being is first broken down into two understandings. The first understanding is of the individual being itself, on its own. This focuses on what kind of species the being actually is, whether it is a tree, ant, bird, or a human being, and what physical attributes and needs that being needs to fulfill its own existence. This need to fulfill physical and material needs and advance existence is what Marx ultimately means when he discusses production, whether on the microcosm level of a man or animal preparing food for its survival or on the macrocosm of the political economy of a society. Therefore, the mode of production is what Marx means by what needs are to be taken care of, predicated on conditional material circumstances, and how such needs are achieved through the distribution of labors and what is exchanged for such labor. The other elemental understanding of the nature of a living being is how it advances its existence and species, or essentially how it procreates future generations. In the plant and animal kingdoms, this could merely be the sexual reproduction and procreation of offspring, or ants providing a colony for future generations of ants. In the macrocosm, this means the evolution of economic production within a society. The physical needs and attributes are the modes of production for the individual itself, and reproduction is the mode of production in whichever community or society the individual belongs. Man is a social animal in Marxist theory, which is an extension or interpretation of Aristotle's infamous axiom that man is a political animal. Whether man is a "political" or a "social" animals depends on how broadly or narrowly the two terms are interpreted, defined and overlap. But politics is in itself a social function: therefore, man is at least a social being. This part of human nature necessitates further understanding of humanity's existence. To understand man requires understanding of human societies and communities. How a society, or aggregation or community, is maintained and advanced through the production of the individuals that constitute it, and how the individuals are maintained and advanced depend on the general production of the society as a whole. Essentially, the individuals in a society contribute to it through their production or work, while simultaneously the individual's own substance is determined by the conditions of the society as an aggregate whole. The s ocial nature of man is the framework to the construction of a society. Also essential in human nature is its ability to not to be constrained by nature, that is the creation and innovation of technology. Man can thus employ nature and "add stature to themselves" in its mode of production. The advances in technology ultimately influence the course of human history and its mode of social production. Social production is essentially the aggregate total production of the entire society, and how the individuals in that society produce and how society itself influences such individual productions. Prior to civilization and defined civil societies in recorded history, man was primarily a hunter-gatherer society where

Feminism in Film

Feminism in Film Feminism In Film Feminism called for positive female characters but seems to have contributed to its own decline as a political movement by refusing to recognise the body as a site of transformation and experimentation, capable of being imagined outside the notions of lack,passive, and other. A person can be masculine and feminine, active and passive, and increasingly the body is transformed through exercise, fashion, make-up, and hairstyles. Individuality is the defining feature of a contemporary consumer culture. The idea that a person can be anything he or she wants to be makes political movements like feminism increasingly unnecessary. Current society sees people as consumers and films are made for people as consumers. In capitalist societies grand political ideologies have been replaced by individual consumerism. One could ask whether feminism is relevant any more as women occupy the same roles as men in society and in films. Female characters are present in every genre, from road movies to westerns, from action to science fiction. Cinema is seen as pure entertainment in a world where individuals search for pleasure and satisfaction. The female action heroines represent similarity and difference, a middle space between binaries of masculine and feminine. They have contributed to the new spaces opened up for women in films and in societies. One could see these figures as a celebration of difference and individualism. You can be and become anything you want. It is no longer necessary to organise the world through rigid binaries. By denying women the possibility to enjoy images of active, aggressive, and even violent women without reducing them to pseudo males, feminism has lost sight of the agenda it set out to achieve. Furthermore, historically feminism like other critical movements has rarely addressed subjects that are not white and fundamentally heterosexual. Feminist film theory has inherited many of the cultural attributes and biases of its male predecessors. The centrality of sexual difference, especially in psychoanalytic feminism, and its difficulty in dealing with other differences- of class, race or sexual preference- have seemed to fix feminist theory within the very dualism it seeks to explain (Thornham, 1997). Feminism has more or less exhausted itself through its obsession with binary logic. Films are increasingly enjoyed as pure entertainment and the battle of the sexes has been replaced by celebration of difference and consumer culture. However, this does not mean that the problems addressed by feminists have been solved or that they have disappeared.

A Comparison of the Character of Brutus in Julius Caesar and Hamlet in

The Characters of   Brutus and Hamlet in Hamlet and Julius Caesar  Ã‚        Ã‚  Ã‚  Ã‚  Ã‚   Written one year apart from the other, one cannot fail to recognize the parallels between William Shakespeare's tragedies Julius Caesar and Hamlet. To begin, they are both stories of assassinations gone horribly wrong. Although the details of the plays are different, the two assassins (Brutus and Hamlet) provide interesting comparison. Through these two killers, Shakespeare reveals the different levels of justice; one’s personal sense of justice; others’ perception of justice; the justice of the monarchy that supports Shakespeare’s craft. Through this, the audience realizes that a just person is not always a humble one, a condition that may turn out to be a fatal flaw in the end. When a man decides to play God by taking justice into his own hands, the world can unravel much more quickly than he had ever imagined.    Justice in Hamlet  is a conflict between two Bible teachings: The Old Testament says, "An eye for an eye," but the New Testament preaches, "Turn the other cheek." Hamlet’s peers beg him to let his father rest in peace and accept his mother’s remarriage, an act that would be in accordance with the New Testament. Claudius, Hamlet’s mother’s new husband, himself p... ... 36 Bradley., A. C. Shakespearean Tragedy: Lectures on Hamlet, Othello, King Lear and Macbeth. New York: Penguin Books, 1991. Durband, Alan. Shakespeare Made Easy: Julius Caesar. Barron's Educational Series, Inc.; New York. 1985. Mack, Maynard. â€Å"The World of Hamlet.† Yale Review. vol. 41 (1952) p. 502-23. Rpt. in Shakespeare: Modern Essays in Criticism. Rev. ed. Ed. Leonard F. Dean. New York: Oxford University P., 1967. Shakespeare, William. Hamlet. Ed. Suzanne L. Wofford. Boston: St. Martin's Press, 1994. Shakespeare, William. Julius Caesar. Ed. Alan Durband. London: Hutchinson & Co. Publishers Ltd., 1984.   

Gas Turbine Engine Is A Generic Term Engineering Essay

1. IntroductionGas turbine engine is a generic term applies to land, sea and airborne applications. It has broad scope of applications from civil and military air power to power coevals, and besides from oil and gas geographic expedition and production to automobile industry. They are compact, light weight, easy to run and has scope of sizes from several hundred KW to 100s of MW. Gas turbine ( GT ) engineering is responsible as the premier mover for the most of propulsion systems and is hence of critical importance. The satisfactory operation and high public presentation gas turbines are of paramount importance to the profitableness of these industries. Promotion in the field of aeromechanicss and stuff engineering has paved a important addition in the efficiency of the gas turbines. Assorted researches are carried out in order to cut down specific fuel ingestion farther by 30-40 % and besides to cut down risky fumes gases coming out of it. Experiments started with simple gas turbine rhythm and developed up to more-complex thermodynamic rhythms such as exhaust-heat-recovery money changers are performed and implement in the existent clip applications. ( ref tribal sheik ) The gas turbines have a immense history of development since 1791, when for the first clip John Barber took out a patent for ‘A Method for Rising Inflammable Air for the Purposes of Producing Motion and Facilitating Metallurgical Operations ‘ . Since early 1900 ‘s, many enterprises have been made to construct the operational gas turbine and develop its public presentation by with assorted attacks. After this major innovation there were plentifulness of people who contributed to develop this engineering with different applications. In April 1937, Sir Frank Whittle ran the first jet engine which had a immense impact on the universe of engineering. It has now been over 71 old ages since the first gas turbine was designed and operated for electric power coevals by A. B. Brown Boveri. The gas turbine began as a comparatively simple engine compared with other reciprocating internal burning engines and has evolved as complex but extremely efficient and dependable premier m over. Though, GT engines has high runing flexibleness and requires comparatively low capital investing, it is necessary to accomplish an optimal design for each type of its application. ( ref Industrial GT ) In the early yearss, it was hard to obtain a sufficiently high force per unit area ratio with equal compressor efficiency till the scientific discipline of aeromechanicss was non introduced to GT. Now, there are efficient engines runing on high compaction ratios. ‘Performance ‘ is the terminal merchandise that every gas turbine company sells, ( ref GT public presentation Fletcher ) and major portion of GT public presentation is chiefly based on design of its thermodynamic rhythm. This survey intends to make an analysis tool for gas turbine rhythms to show the fluctuation of gas turbine public presentation parametric quantities with aid of a graphical user interface through different illustrations and a instance survey. Before continuing to those chapters of the thesis, a brief debut over gas turbine operation and intent of making such tool is given in the undermentioned subdivisions.1.1 Fundamentalss of gas turbinesFigure 1: Simple gas turbine systemA typical gas turbine engine comprises three chief constituents: Compressor, Combustor and Turbine. They operate upon the rule of Brayton rhythm by agencies of series uninterrupted flow procedures. The rhythm defines what happens to the working fluid when it passes into, through and ou t of the gas turbine. This working fluid is ab initio compressed in the compressor. It is so heated in the burning chamber by adding fuel by agencies of burning. Further, it goes through the turbine. The turbine converts the gas energy into mechanical work. Part of this work is used to drive the compressor. The staying portion is known as the net work of the gas turbine. The undermentioned figures would depict the agreement, procedures and the flow in simple Brayton rhythm. Figure 2: T-s diagramThe Figure.1 shows three chief constituents of gas turbine engine. Compressor, combustor and turbine contribute three important procedures in the engine. These diagrams give a brief thought about the agreement and the flow of fluid in ideal Brayton gas turbines rhythm. Normally, compressor and turbine are mounted on the same shaft so that the turbine could drive the compressor and salvage extra power supply required for the compressor. Figure.2 represents the simple Brayton rhythm demoing temperature-entropy fluctuation for procedures happening in each of these constituents. At point-1, air is taken from the ambiance into compressor and acquire pressurised really during phases 01 to 02 ( isentropically 01- 02 ‘ ) . The temperature of this pressurised air increased by heat add-on ( qin and qout ) through firing fuel in the combustor during phases 02 to 03 with some loss in force per unit area. It can be seen that the highest temperature in the rhythm is at t urbine recess. Finally the enlargement occurs in the turbine from phases 03 to 04 ( existent, which causes to impel it and bring forth power. Thermodynamic rhythm operates individually in each constituent of GT system. Using notations above, following equations are derived ; Pr = Compression force per unit area ratio, T01= Compressor recess temperature. Cp= Specific heat ( air/gas ) . Compressor Using isentropic p-T relation, we have, Here, T01 is temperature at compressor recess and T'04 is ideal temperature at compressor bringing. Isentropic efficiency of the compressor is given by, Therefore, existent compressor bringing temperature: is given by Turbine Similarly, utilizing isentropic p-T relation, we have, Ideally, there is no force per unit area loss throughout the system. However, there is ever a opportunity of fring force per unit area in the burning chamber. In that instance, force per unit area at the turbine recess will be given as ; P03 = P02 – ( P02- % loss in force per unit area ) . Therefore, p-T relation for turbine will be given as, Here, T03 is temperature at turbine recess and T'04 is ideal temperature at turbine fumes Turbine isentropic efficiency is: And turbine ‘s exhaust temperature Combustor And Temperature rise in burning chamber= Here, FAR = Fuel to Air ratio. Once, all temperatures across the constituents are known, the power consumed and delivered can be determined. Power and efficiency Work required to drive the compressor is ; And entire power produced by the turbine, Hence, Net power developed: Thermal efficiency of GT rhythm is the ratio of net work out to the input. From all old equations, thermic efficiency of the rhythm can be calculated as ; It is of import to gain, unlike the conventional reciprocating engines, the above described procedures ( compaction, burning and enlargement ) does non happen in individual constituent. They occur in different constituents which are designed, tested and developed separately in their sense. Therefore, in pattern, losingss in GT engine constituents such as drag loss in compressor, force per unit area losingss in combustor, temperature loss in turbine will increase the power required to drive the compressor and devour the net power generated. These losingss define isentropic efficiency of the constituents. It will necessitate a certain add-on to the energy of working fluid, and therefore a certain fuel supply will be needed. This extra supply does non bring forth any utile power, and finally consequences in low rhythm efficiency. Use of complex rhythm was proposed in the early yearss of gas turbines, when they were necessary to obtain a sensible thermic efficiency. There are three conve ntional methods of bettering the efficiency: reheating ( extra combustor between two turbines ) , inter-cooling ( an intercooler between two phases of compressors ) and regeneration ( a recuperator between compressor and combustor ) . The undermentioned figures show the regeneration system and procedures. Figure 3: Recuperative rhythm Figure 4: T-s Diagram for restorative rhythm In the agreement shown in figure 3 the turbine fumes gas heat has been utilized to preheat the air come ining the combustor by adding a recuperator ( heat money changer ) . The recuperator really imparts the turbine fumes heat into the combustors air/fuel mixture. The temperature obtained at point 5 will now be the entering temperature for burning chamber. Now the heat rise in the combustor is less than needed in simple rhythm, and therefore less fuel required. Decrease in fuel ingestion will better the rhythm efficiency. However, these polishs can be made maintaining in head the extra complexness, weight and cost in any gas turbine works. Here, the lone alteration than simple rhythm is the debut of recuperator to leave the fumes heat. Therefore, the temperature rise occurs from T05 to T03. T05 can be determined utilizing the heat money changer dealingss of effectivity ; E†º , E†º = effectivity of recuperator ( normally 0.7 to 0.9 ref ) . Since, T05 & A ; gt ; T02, relatively less sum of fuel is required to make the coveted turbine recess temperature which consequences in bettering thermic efficiency of the rhythm. The old two illustrations explain the operational behavior of gas turbine systems. Furthermore, fluctuation of parametric quantities like force per unit area ratio of compressor, turbine recess temperature, ambient conditions, burning efficiency, etc will be discussed subsequently in this study. Following subdivision will supply information about bing plans in the market to analyze GT rhythms and will besides depict the intent of making a graphical user interface for these rhythms.1.2 Undertaking backgroundGas turbine belongs to such technology subject where it has to cover with many undertakings. The operation and public presentation of the gas turbines depends upon the chosen construction of thermodynamic rhythm. There are few but really effectual plans commercially available to show the fluctuation of gas turbine public presentation parametric quantities. ‘GASTURB ‘ and ‘EngineSim ‘ are one those. GASTURB This is a really utile plan developed by Dr. Joachim Kurzke. ‘Gasturb ‘ trades with both design and off design public presentation of gas turbines. Its development had begun in early 90 ‘s. And its first publication was presented at ASME in conference of 1995. Since so, the uninterrupted development had been carried out in this plan. It has several installations ; user can take the type of engine he wishes to analyze and so plan it farther as per the coveted demands. For illustration: if the user ‘s pick is to look into public presentation of his design for the aircraft engine, user can travel further and do his picks about taking a turbofan/turbojet/turboprop/turboshaft and more profoundly taking the type of flow, type of shaft agreement and figure of constituents and their sizes. ( ref gasturb ) EngineSim Using EngineSim plan, one can look into the push production through jet/turbine engine by interactively altering values of different engine parametric quantities. The first version ( EngineSim 1.1 ) of this plan was released in 1999. Assortment of secret plans and optional life was besides included in this plan. Since so, there has been uninterrupted development in this plan to detect the effects of engine constituent public presentation on push and fuel ingestion. It besides allows user to vary design parametric quantities in each constituent. It has two basic manners of operation ; design manner and trial manner. In design manner, user can present several types of designs and take the optimum, whereas in the trial manner, user imports one peculiar design and trials it with different runing conditions. ( ref EngineSim ) Other similar plans Articles ( ref ) Plans above are the most recognized commercially available tools to analyze gas turbine rhythm design. With uninterrupted developments and quickly increasing demand of gas turbine application, the design facets of thermodynamic rhythm are going more and more critical twenty-four hours by twenty-four hours. We hence emphasize to concentrate on thermodynamic rhythms since the rhythm analysis allows standards to be established which will put the bounds on possible theoretical public presentation and which can be used to entree the existent public presentation of the engine. In primary phases of planing a rhythm it is complicated and clip devouring for the interior decorators to take an appropriate rhythm in order to accomplish a coveted end product. The alone combination of thermodynamic and design parametric quantities leads to bring forth different rhythms and can do monolithic alterations in end product. To do this easier for analysis, it is necessary to make a tool which can propose primary pros and cons of the chosen rhythm. The basic purpose of this thesis is to make a flexible and powerful tool to analyze these thermodynamic rhythms. The undermentioned chapter will show the process of creative activity this tool ( GUI ) and its phases of development.2. GUI creative activity2.1 What is GUI?GUI is an abbreviation refers to ‘Graphical User Interface. ‘ Unlike coding the plans, GUI is a graphical show of one or more Windowss incorporating certain controls which enable user to execute synergistic undertakings. These controls are called constituents. GUI is a powerful tool through which user can pass on with computing machine without programming bids. It allows user to include about all types of window maps such as edit boxes, pushbuttons, radio/toggle buttons, checkbox, axes, bill of fares, toolbars, popup bill of fare etc. Using these, user can execute several and complex types of calculations. GUI ‘s can besides interact with other GUI ‘s and present the end point values through secret plans or on tabular arraies. GUIs are fundamentally created for automatizing the arduous calculations or see king for or larning about information content informations.2.2 Choosing planTo make such flexible tool it is necessary to take strong scheduling linguistic communication. There are some really strong plans available such as Java, Visual rudimentss, C++ . These linguistic communications allows user to pull strings the equations and utilize them as user wants to. This can besides be done utilizing Microsoft Excel © . However, to develop this tool ‘MATLAB ‘ has been chosen for following grounds: MATLAB is a widely used tool in technology subject. It can be used for simple mathematical uses with matrices, for apprehension and learning basic mathematical and technology constructs, and even for executing simulation. Matlab was originally introduced as a little and ready to hand tool which has now evolved and go an technology workhorse. Matlab is an taken linguistic communication for numerical calculation. It allows user to execute several types of numerical computations, and visualise the consequences with simple programming methods. Matlab is dependable every bit long as the codification is expeditiously written. It can easy bring forth artworks. Numerous types of tool chests in Matlab can heighten the use of traditional simulation tools used for advanced technology applications. Old versions of Matlab is could make GUI by merely coding m-file. The MathworksTM has developed a tool called GUIDE in Matlab which is non merely efficient but much more user friendly. ( ref Matlab ) 2.2.1 GUI with Matlab Matlab supplies the set of user interface constituents which allows us to plan GUIs which matches with those used in sophisticated package bundles. There are plentifulness of books available for artworks and GUI scheduling. Here, MATLAB- GUIDE tool will be used to make GUI. It is really utile, easy for GUI coevals. This tool in Matlab initiates the GUI environment ( GUIDE ) and let user to make or redact GUI interactively. On choice, GUIDE opens a speedy start duologue box where user can take to open bing GUI ‘s or make a new GUI utilizing provided tools and templets. ( ref Matlab tutorial ) GUIDE tool besides bring forth its backup ‘m-file ‘ automatically, which contains basic low-level formatting codification and an gap map. GUI constituents in m-files are addressed utilizing two basic things: grips ( uicontrols ) and their several belongingss ( uimenus ) . These two can be combined with other artworks objects and can be utilized to make enlightening, intuitive, a nd aesthetically delighting GUIs. Matlab tutorial suggests following basic points to be considered to construct a successful GUI. Paper prototyping: Sketching a conceptual design on paper to avoid confusion while constructing GUI. Physical considerations: the GUI building in such a manner that user must interact with high degree of flexibleness. Attractive visual aspect Effective cryptography. Figure 5: Basic stairss to construct GUI Figure 5 describes the basic process to construct GUI. Once the users and information that is to be interfaced with is understood, one can get down the procedure of puting out the GUI. If the on-paper paradigm is ready, it is rather faster to take how many constituents are required. Input signal constituents are interlinked in the backup m-file through a certain map called ‘callback ‘ . This map controls GUI or component behavior by executing some action in response to an event for its constituent. These events can be a mouse chink on pushbutton, menu choice or a imperativeness key, etc. On snaping the end product recall map ( normally a pushbutton ) , the GUI calls the map in the backup m-file and put to death the codification.2.3 Phases of developmentThis subdivision of the study describes how this analysis tool has been developed utilizing Matlab GUIDE. The user interface has been built right from running GUIDE tool for the first clip and so adding different constituents. Figures below will explicate this better. Figure 6: Primary operations in Matlab GUIDE Figure 6 shows the primary operations to be done after choosing GUIDE option on the tool saloon. As explained in subdivision 2.2 ; the usher option starts with a speedy start window enabling user to choose creative activity of new GUI and opening bing file.Phase 1For this tool, clean GUI option has been selected so the following window shows the GUI environment with tool saloon consisting of control constituents. In the following window demoing clean GUI environment, the needed input constituents in footings of edit boxes had been chosen and aligned in the panel. Furthermore, a inactive box to expose the computed consequence and a pushbutton to execute the actions mentioned in the codification has been introduced to the working GUI environment. The m-file contains the bids to read inputs through grips of edit boxes. The pushbutton ‘callback ‘ has bid with equations to calculate the coveted end product. Note: Equations used in the m-file are same as mentioned in chapter 1.1. Figure 7: Phase 1- GUI computer science efficiency for simple rhythm Figure 7 represents the first phase of this tool. It required specific user inputs in the provided edit boxes such as compressor recess conditions, compaction force per unit area ratio, desired turbine recess temperature, specific heat capacity of gas, isentropic efficiencies of compressor and turbine, air mass flow and force per unit area loss if there is any. Once these values are entered user is supposed to snap on the provided button ( ‘Calculate ‘ ) and it would cipher the efficiency for the simple rhythm. ( Please see appendix for the codification. )Phase 2The first phase was able to find the efficiency for the simple rhythm but merely for given conditions. As mentioned before, the purpose of this thesis is to make and develop this tool to analyze the public presentation of gas turbine rhythm with fluctuation of different parametric quantities. These basic parametric quantities really demonstrate the overall consequence of chosen design. These are the chief factors impacting the public presentation of gas turbine engine. Compression force per unit area ratio Turbine working temperature Component efficiencies and ambient working conditions Figure 8: Phase 2- GUI for simple rhythm with variable force per unit area ratioIn the 2nd phase, an enterprise to vary force per unit area ratio has been done. Since, the rhythm efficiency chiefly depends upon the force per unit area ratio. At this phase, the user can take the scope ( minimal and maximal ) of force per unit area ratio maintaining all other parametric quantities changeless and can acquire a graphical end product for the simple rhythm. To implement this option cringle for altering force per unit area ratio has been used in the backup m-file. Figure below depicts stage 2 of GUI.Phase 3Initial phases of this tool were limited to find the public presentation of the given working status for simple rhythm merely. In 3rd phase, a recuperated rhythm has been introduced to the tool. Figure 9: Phase 3- GUI with both rhythms In the figure above, it can be seen that a button group incorporating three wireless buttons is added to the tool. Once all inputs are entered the user can take the type of rhythm and vary as per want. There are three options available for user, 1. Simple rhythm: this will bring forth the fluctuation of force per unit area ratio against the end product efficiency for simple rhythm. 2. With recuperator: this option will inquire user to come in the value for effectivity since it is necessary for recuperated rhythms and plot the fluctuation for recuperated rhythm. 3. Compare both rhythms: It is necessary to compare both rhythms to look into the consequence of utilizing recuperator. Maximal illustrations prove that usage of recuperator enhances the rhythm efficiency as per theory. In the figure above, it can be seen that for certain scope of force per unit area ratio the efficiency of the rhythm is rather higher utilizing recuperator than that of simple rhythm. Further subdivision in this study would discourse about the consequence of fluctuation of different parametric quantities on the rhythm. Furthermore, the tool displays the value of maximal possible thermic efficiency for all three conditions.Phase 4As discussed at phase 2, the turbine recess temperature besides plays critical function in finding the efficiency. Increase in TET that is, turbine recess temperature would ensue in enhanced rhythm efficiency provided creep strength of the turbine blades is high plenty to defy that temperature. To see this consequence further development in GUI has been done. At this phase the GUI is able to bring forth efficiency curves for changing force per unit area ratio every bit good as for changing turbine recess temperature. However, it is necessary to maintain all other parametric quantities constant. Therefore, while changing any one of these two, the minimal value from the scope entered by user is taken for the other changeless. For illustration, while changing force per unit area ratio, minimal value for TET will be taken as a invariable for that instance and frailty versa. The undermentioned figure will show the fluctuation for TET. It can be seen that, another button panel is added incorporating two wireless buttons which allows user to choose the variable among force per unit area ratio and TET. The GUI generates the graphical end product on snaping the ‘analyse ‘ button. Figure 10: Phase 4- GUI varying TET and Pressure ratio for rhythm efficiency It can be observed from above figure that at TET = 800K ; the efficiency was found around 13 % ( for simple rhythm ) and has bit by bit increased with increasing turbine recess temperature. Figure 11: Phases of development in GUI3. Consequence of fluctuation in public presentation parametric quantity on GT rhythms with illustrationsThe basic gas turbine rhythm normally has low thermic efficiency, so it is of import to look for improved gas turbine based rhythms. As discussed in the old chapter ( subdivision 2.3 ) , following are the chief constituents impacting the public presentation of gas turbine rhythms. An appropriate alteration in these parametric quantities will take the system to accomplish desired end product with high thermic efficiency. Compressor force per unit area ratio Turbine recess temperature Component efficiency and ambient working status. The elaborate going from the assorted theoretical rhythms with alteration in working parametric quantities will be examined in this chapter.3.1 Compressor force per unit area ratioThe specific work end product upon which the size of the works for a given power depends is found to be a map of force per unit area ratio. ( Ref Gt theory ) If Pressure ratio ( Pr ) =1, so work end product would be zero. With the created GUI, the fluctuation of force per unit area ratio has been tested. Following illustration show the consequence of Pr on the efficiency. Pressure at recess of compressor ( P1 ) 1.01325 saloon Temperature at compressor recess ( T1 ) 288 K Pressure ratio of compressor ( Pr ) Minimum 2:1 Pressure ratio of compressor ( Pr ) Maximum 16:1 Temperature at turbine recess ( T3 ) 1100 K Compressor isentropic efficiency 80 % Turbine isentropic efficiency 85 % Mechanical efficiency 99 % Air mass flow 0.6 Kg/sec Pressure losingss 5 % Specific heat capacity Air= 1005 KJ/Kg-K Gas= 1146 KJ/Kg-K Effectiveness of the recuperator 0.8 Table: Parameters specifying runing condition- Varying force per unit area ratio For the above status, following consequences have been obtained utilizing the GUI. Figure 12: Consequence of changing Pressure ratio In the figure above, force per unit area ratio is changing from 2 to 16:1 ( at changeless TET = 1100 K ) . It is obvious that the consequences for simple rhythm and recuperated rhythm are different. For simple rhythm, due to high force per unit area compressor bringing temperature started increasing and the work input in burning chamber has been decreased, a gradual betterment can be seen in efficiency from 11 % to 25 % with increasing force per unit area ratio 2:1 to 10:1. However, after that it started worsening bit by bit. Increase in force per unit area ratio caused higher ingestion of power required to drive the compressor. But for the changeless turbine recess temperature, the entire power generated by turbine is besides changeless for all conditions and the net end product has continuously decreased which finally resulted in low efficiency. On the other manus, the efficiency for the recuperated rhythm rose all of a sudden ( till Pr =3.8:1 ) due to high temperature come ining the burning chamber ( chapter 1.1 ) and so, less work input. Continuous bead is been ascertained further due to high ingestion of work by the compressor. Recuperated rhythm has steep autumn compared with simple one. High force per unit area ratio resulted in high compressor bringing temperature T2, the heat exchange in the recuperator occurs till the turbine ‘s fumes gas temperature T4 & A ; gt ; T2. With rising force per unit area ratio and changeless turbine working temperature, at certain point T2 = T4, after this if T2 is still lifting due to higher force per unit area ratio so a set of status is shortly reached when T2 & A ; gt ; T4. In such instance, the heat exchange system in the recuperator reverses its flow and the energy is wasted heating up exhaust gas consequences in much lower temperature at combustor recess and so thermic efficiency. Figure below explains the heat flow for both of these instances. Figure 13: Recuperator in gas turbine rhythms3.2 Turbine recess temperature ( TET )This is another most important parametric quantity in the rhythm. From the equation, Work done by the turbine, The power created by the turbine is straight relative to the turbine entry temperature. When the turbine entry temperature decreases, so the work done by the turbine bead which in bend cut down the net turbine power and efficiency of the gas turbine. To find its consequence, same illustration is taken as below. Pressure at recess of compressor ( P1 ) 1.01325 saloon Pressure ratio of compressor ( Pr ) 5:1 Temperature at turbine recess ( T3 ) Minimum 800 K Temperature at turbine recess ( T3 ) Maximum 1200 K Compressor isentropic efficiency 80 % Turbine isentropic efficiency 85 % Mechanical efficiency 99 % Air mass flow 0.6 Kg/sec Pressure losingss 5 % Specific heat capacity Air= 1005 KJ/Kg-K Gas= 1146 KJ/Kg-K Effectiveness of the recuperator 0.8 Table: Parameters specifying runing condition- Varying TET. Following figure illustrates the consequences demoing the consequence of TET on efficiency for the illustration. Figure 14: Consequence of changing TET In figure 13, the temperature at turbine recess is changing from 800-1200 K ( at changeless Pr = 5:1 ) . As expected, it can be seen that there is a immense rise in the efficiency particularly for recuperated rhythm and a good betterment in for of simple rhythm excessively. Normally, stuff available for turbine building fixes the highest recess temperature for the turbine for a given rhythm. It depends upon the creep strength of the stuff used for the turbine blades. If the engine is made capable of operating at high temperature than its old theoretical account due to improved stuffs and design, the higher temperature consequences in increased power and improved efficiency while adding higher cost for blade chilling for turbine phases.3.3 Component efficiency and ambient working statusComponent efficiency is usually expressed in footings of the ratio of existent and ideal work transportations. Turbomachines are basically adiabatic, hence the ideal procedure is said to be isentropic. The efficiency of this procedure differs with the nature of operation of the constituent such as soaking up or production of work. The efficiency of the compaction procedure may be defined as the ratio of the ideal compaction work to the existent compaction work. And for an enlargement procedure, the efficiency is the ratio of the existent enlargement work to the ideal enlargement work. Due to irreversibility the efficiency will be less than integrity. ( Ref Ind GT ) . Higher the isentropic efficiency of constituent, better the public presentation of gas turbine system. Ambient working status affects the public presentation of engine since the denseness of the air will be different under different climatic conditions. At high altitudes the air denseness decreases ensuing in lessening of end product shaft power. The recess air temperature for compressor should besides be taken into consideration since at different parts of the universe the room temperature can non be same. For illustration, if the recess air temperature alterations from 288K to 310 K so less mass flow of air is required and so the force per unit area ratio.3.4 Pressure losingssIn the early yearss of gas turbines, two types of system were proposed ; one at changeless volume and other at changeless force per unit area. The isolation of valves of combustor from compressor and turbine was necessary in changeless volume system ; hence the development in the changeless volume type was discontinued. ( Ref GT theory ) . The combustor and the heat add-on procedure incur force per unit area losingss and hence the heat add-on is non a changeless force per unit area procedure in a practical gas turbine rhythm. Similarly, in a practical gas turbine rhythm, heat sink is used ; the ambiance and the ductwork to take the exhaust gases from the gas turbine will besides incur a force per unit area loss. Furthermore, practical gas turbines usually operate on unfastened rhythms and air is drawn in continuously to supply fresh working fluid for the gas turbine. As a consequence, there is besides a force per unit area loss in the recess system.3.5 Specific heatsThe above treatment makes one to recognize certain bounds of public presentation such as temperature which present twenty-four hours turbine metals can defy and the gettable force per unit area ratios in the compressors in order to let sensible length of working life.

Ethnic Group Of Bangladesh Essay

FIRST OF ALL I LIKE TO SHOW GREAT RESPECT TO OUR ALMIGHTY FOR GIVING ME AN ABILITY TO CARRY ON THIS TYPE OF ASSIGNMENT ON THE WAY TO COMPLETION AND FINALIZATION TO MY SUCCESS. THEN I WOULD LIKE TO THANK OUR HONORABLE TEACHER SHAMSHAD CHOWDHURY FOR GIVING ME THE ACTUAL IDEAS AND CLUES FOR THE ASSIGNMENT. ESPECIALLY THANKS TO THE AUTHORITY OF SHANTO-MARIAM UNIVERSITY OF CREATIVE TECHNOLOGY FOR SELECTING THIS KIND OF SUBJECT THAT REALLY WOULD BE A PIONEER STEP ON OUR FUTURE AND TO MAKE A GREAT PLAN FOR THE FURTHER ACTIVITIES AND TO THE NEAR NEXT 1 | P a g e Ethnic Group Of Bangladesh. 1. Introduction : BANGLADESH IS QUITE RICH IN ETHNIC CULTURE. THERE ARE ABOUT THIRTY-FIVE ETHNIC COMMUNITIES LIVING IN DIFFERENT PARTS OF THE COUNTRY. THE MAJOR ETHNIC COMMUNITIES ARE CHAKMA, MURMA, GARO, SANTAL, HAJONG, TIPRA, KHASI, MURANG, SHENDHU, PANKO ETC. THEY STRUGGLE TO MAINTAIN THEIR LIFE STYLE, CULTURE AND PROTECT DISTINCT RELIGIOUS BELIEFS FROM THE INFLUENCE OF THE DOMINANT CULTURE AND RELIGIONS. IN THE NORTH AND NORTHWESTERN BELT OF BANGLADESH A NUMBER OF ETHNIC COMMUNITIES LIVE WHO STILL HAVE TO STRUGGLE HARD TO SUSTAIN THEIR ORIGINAL CULTURE AND TRADITIONAL HERITAGE. THE ADIVASIS IN THIS REGION COMPRISES OF SEVERAL GROUPS SANTAL, ORAON, MUNDA, MAHALI, MAHATO, MALPAHARA ETC. AMONG THE ETHNIC PEOPLE IN THE NORTH AND NORTHWESTERN BELT OF BANGLADESH SANTALS ARE LARGEST IN NUMBER. BUT THERE IS NO ACCURATE AND RELIABLE STATISTICS REGARDING THEIR ACTUAL POPULATION. THERE IS ALSO A GREAT DIFFERENCE BETWEEN THE OFFICIAL AND UNOFFICIAL FIGURES AND ESTIMATES. ACCORDING TO THE GOVERNMENT CENSUS OF 1991, THE ADIVASI POPULATION WAS ESTIMATED 3,14,337 IN 16 ADMINISTRATIVE DISTRICT OF THE RAJSHAHI DIVISION. BUT AS CLAIMED BY AN INDIGENOUS COMMUNITY LEADER, BADLA ORAON OF DINAJPUR ADIVASI ACADEMY, THE. NUMBER OF INDIGENOUS PEOPLE IN RAJSHAI DIVISION WAS 3,222,000 WAY BACK IN 1984. A SURVEY REPORT REVEALS THAT THE TOTAL POPULATION OF SANTAL IS 143932 IN DINAJPUR, RAJSHAHI, BOGRA, PABNA AND SOME OTHER AREAS OF BANGLADESH. ACCORDING TO THE OTHER SOURCES, THE TOTAL NUMBER OF SANTALS ARE MUCH HIGHER THAN ESTIMATED. MOST OF THE SCHOLARS ALSO QUESTIONED THE AUTHENTICITY OF THE NUMERICAL DATA. IN THEIR OPINION, THE CENSUS TAKES LANGUAGE AS THE BASIS FOR IDENTIFYING ANY PERSON AS BENGALI OR INDIGENOUS. THEY HAVE ALSO ALLEGED THAT THE EXISTING POLICY IS TO SHOW THE NUMBER LOWER THAN THE ACTUAL NUMBER. 2 | P a g e. Ethnic Group Of Bangladesh 2. Historical Background of the Santals SINCE HOW LONG THE SANTALS LANDED IN THE TERRITORY OF PRESENT BANGLADESH, IS NOT PRECISELY KNOWN. SOME BELIEVE THAT THE KHERWARS REACHED THE LAND OF BENGAL IMMEDIATELY AFTER THE FIRST CLASHES WITH THE INVADING ARYAN TRIBES (2500 B. C. ). WITH EVERY PROBABILITY THE SANTALS LANDED IN BANGLADESH WITH THEIR ACTUAL ETHNIC IDENTITY, NOT AFTER 1000 B. C. IT IS PROBABLE THAT THE SANTALS SCATTERED THROUGHOUT BENGAL AT THE TIME OF THE MUSLIM INVASION OF THIS REGION DURING THE LAST DECADES OF THE TWELFTH CENTURY OR AT THE BEGINNING OF THIRTEENTH CENTURY. IN THE WORDS OF FR. LUIZI PUSSETTO: â€Å"THE SANTALS RETIRED PROGRESSIVELY TOWARD MORE CALM REGIONS OR WHERE IT WAS MORE EASY TO DEFEND [THEMSELVES] FROM THE INVADERS†¦ † IN LATER TIMES, WITH THE HISTORIC SANTAL REVOLUTION IN 1855 UNDER THE BRITISH COLONIAL RULE IN THE INDIAN SUBCONTINENT, WHEN 30,000 THOUSAND SANTALS ARE BELIEVED TO HAVE BEEN KILLED, IT IS BEYOND ANY DOUBT THAT MANY OF THE SANTALS WERE DISPERSED INTO DISTANT LANDS AND GEOGRAPHICALLY ISOLATED TERRITORIES. MANY OF THEM EVEN CROSSED THE RIVER GANGES AND END UP IN THE EAST, THE PART OF PRESENT BANGLADESH. MANY THINK THAT THE EARLY SANTALS CAME TO NORTH BENGAL IN SEARCH FOR JOB OPPORTUNITIES, ESPECIALLY WHEN THE RAILWAY TRACKS WERE UNDER CONSTRUCTION during the British rule in the second half of the 19th century. This may be one of THE REASONS THAT MOST SANTALS IN BANGLADESH ARE FOUND SETTLING ON BOTH SIDES OF THE RAILWAY LINES FROM NORTH TO SOUTH. 2. 1 THE NAME â€Å"SANTAL†: REGARDING THE NAME SANTAL, OPINIONS DIFFER AMONG THE SCHOLARS. FOR SKREFSRUD, THE NAME SANTAL IS A CORRUPTION OF SAONTAR, AND WAS ADOPTED BY THE TRIBE AFTER THEIR SOJOURN FOR SEVERAL GENERATIONS IN THE COUNTRY AROUND SAONT IN MIDNAPUR. W. B. OLDHAM OPINED THAT SANTAL IS AN ABBREVIATION OF SAMANTAWALA, WHICH HAS ITS ETYMOLOGY FROM SANSKRIT SAMANTA, ANOTHER NAME GIVEN TO THE COUNTRY AROUND SAONT. O’MALLEY IS OF THE OPINION THAT SANTAL IS AN ENGLISH FORM ADOPTED FROM HINDI WHICH CORRESPONDS WITH THE FORM SAOTAL USED BY THE BENGALI SPEAKING PEOPLE. MOST ANTHROPOLOGISTS AGREE THAT SANTAL IS A NAME GIVEN TO THIS TRIBE BY NON-SANTALS. HOWEVER, SANTALS PREFER TO CALL THEMSELVES HOR MEANING â€Å"HUMAN BEING OR PERSON. † FOR THE SANTALS THE CONCEPT HOR BEARS A RICH CONNOTATION TO MEAN A PERSON WITH QUALITIES OF INTELLECT, OF KNOWLEDGE, OF WISDOM; THEY REFER THEMSELVES AS A TRIBE WITH DIGNITY AND FULL HUMAN POTENTIALITY. THE SANTALS ARE PROUD OF THEIR IDENTITY THAT DEFINES THE TRAITS OF SOLIDARITY AND UNIQUENESS AS A GROUP. 3 | P a g e Ethnic Group Of Bangladesh 2. 2 ORIGIN, RACE, AND LANGUAGE: AS TO THE â€Å"ORIGIN† OF THE SANTALS, VERY LITTLE IS KNOWN FOR CERTAIN. THE SANTALS HAVE NO RECORDED HISTORY. LIKE OTHER ANCIENT SOCIETIES, SANTALS HAVE TRIED TO EXPLORE THE MYSTERIES OF CREATION, HISTORY AND LIFE BY MEANS OF MYTHS AND LEGENDS. FOLLOWING THE ANTHROPOLOGICAL DATA, SOME AUTHORS CLASSIFY SANTALS AS PRE-DRAVIDIAN AND OTHERS AS PROTO-AUSTROLOIDS; AND OTHERS AS ABORIGINALS OF THE NORTHWEST. THUS, THE OPINIONS IN THIS RESPECT ARE VERY DISCORDANT. THE SANTALS DO HAVE THEIR OWN MYTHOLOGY OF CREATION AND MANY BELIEVE THAT THEY ALL HAVE COME FROM PILCU HARAM AND PILCU BUDHI, WHICH IS LIKE ADAM AND EVE IN THE BIBLE. SANTALI IS THE MOTHER TONGUE SPOKEN BY THE SANTALS. IT IS A MUNDA LANGUAGE OF THE KHERWAR GROUP THAT BELONGS TO THE MUNDA-MON-KHMER OR ‘AUSTRO-ASIATIC’ SUB-FAMILY. BUT THERE ARE OTHER DIFFERENT OPINIONS ON THIS TOO. ACCORDING TO N. PRASAD, â€Å"SANTALI IS THE RICHEST DIALECT AMONG ALL THE TRIBAL DIALECTS OF BIHAR. † 2. 3 GEOGRAPHICAL LOCATION: IN BANGLADESH, THE SANTALS ARE FOUND MOSTLY IN NORTH BENGAL (NORTHERN PART OF BANGLADESH) ESPECIALLY IN THE THEN GREATER DISTRICTS OF DINAJPUR, RANGPUR, BOGRA, AND RAJSHAHI. ACCORDING TO THE CENSUS OF 1881, THE SANTALS RESULTED PRESENT IN THE DISTRICT OF KHULNA, PABNA AND CHITTAGONG IN THE SOUTH. MANY SAY THAT THE SANTALS, WHO ARE IN SYLHET, ARE THE ONES WHO MIGRATED FROM THE DISTRICTS MENTIONED ABOVE AND CAME HERE MAINLY TO WORK IN THE TEA GARDENS AS LABORERS. IN SHORT, THE SANTALS OF BANGLADESH ARE ALMOST ALL DERIVED FROM THOSE EMIGRATED FROM THE SANTAL PARGANA IN INDIA AND NOTHING DISTINGUISHES THEM FROM THOSE WHO ARE STILL LIVING THERE, WITH THE EXCEPTION, PERHAPS OF THE USE OF BANGLA WORDS THAT ARE SANTALIZED. IN RECENT TIMES SOME OF THE BANGLADESHI SANTALS ALSO STARTED GOING ABROAD TAKING EMPLOYMENT OPPORTUNITIES. 4 | P a g e Ethnic Group Of Bangladesh 3. THE WORLDVIEW THE SANTALS ARE SIMPLE AND UNSOPHISTICATED PEOPLE. LIKE ANY OTHER PEOPLE, THE SANTALS HAVE DEVELOPED THEIR OWN WORLDVIEW, A SYSTEM SUITED TO DEAL WITH THE BASIC PROBLEMS OF LIFE AND ITS MEANING. THEY HAVE PERCEIVED THE ENIGMA AND THE BASIC DICHOTOMY OF HUMAN EXISTENCE—LIFE AND DEATH, GOOD AND EVIL FROM THEIR OWN PERSPECTIVE. FOR THE SANTALS, LIFE, HEALTH, WEALTH, PROSPERITY, HAPPINESS, TRIBAL SOLIDARITY, RELIGIOUS BELIEF, MORES, ETC., ARE â€Å"GOOD†; AND DEATH, ILLNESS, POVERTY, MISFORTUNE, INJURY ETC. ARE â€Å"EVIL†. THEIR RELIGIOUS EXPERIENCES IS MEDIATED THROUGH THEIR CULTURE AND ARE EXPRESSED IN TERMS OF SYMBOLS, METAPHORS, MYTH, LEGENDS, FOLKLORE, SONGS, CULT, RITUALS AND SO ON. THE Santals consider Th kur Jiu ? (Life Giver) or Cando Baba (Sun Father) or Marang BURU (GREAT MOUNTAIN) AS THE SOURCE OF ALL â€Å"GOOD†; WHILE IT IS THE â€Å"EVIL EYE†, THE â€Å"evil mouth† and the b ric’ bonga ? or malevolent spirits who cause harms in human LIFE. THEREFORE, WHILE ACKNOWLEDGING THE SUPREME BEING, THEY ALSO PROPITIATE THE. BONGA IN AN ATTEMPT TO SOLVE THE PROBLEMS OF SUFFERING, SICKNESS, AND OTHER CRISIS. ALL THESE QUITE OFTEN LEAD THEM TO SUPERSTITIOUS BELIEFS AND GIVE RISE TO PROMINENCE OF THE FEAR OF THE BONGA. FOR THE SANTALS EVERY NEWBORN CHILD COMING FROM THE INVISIBLE AND SHADOWY WORLD NEEDS TO BE PURIFIED, IDENTIFIED AND INTRODUCED TO THE SANTAL SOCIETY. MUCH OF SUCH REALITIES ARE EXPRESSED THROUGH THE RITUAL CEREMONIES PERFORMED AFTER A CHILD IS born. The ritual of the janam ch ti r? ? (birth purification and name-giving ritual) is ONE EXAMPLE WHERE THESE ASPECTS ARE ENACTED THROUGH BATHING, SHAVING THE HEAD OF. THE BABY, DIVINING OF ARWA RICE (UNBOILED RICE) GRAINS AND WELCOMING OF THE BABY BY THE COMMUNITY. THE DEATH PURIFICATION CEREMONIES LIKE FUNERAL RITES OF BHANDAN, OR MORA KARAM (AFTER-DEATH CELEBRATION) PROVIDE FURTHER DETAILS OF THE SANTAL-BELIEF SYSTEM THAT THE DEAD PERSON GOES BACK TO THE SAME SPIRIT-WORLD OF LIFE FROM WHERE HE/SHE HAD COME AS A BABY AND REMAINS DEFILED AND DEFILING, FOR WHICH REASON NOT ONLY THE FAMILY THAT NEEDS PURIFICATION, BUT THE VERY RETURN OF THE DECEASED. PERSON TO ITS ORIGINAL STATE OR SHADOWY-WORLD IS ALREADY DEFILING BECAUSE IT IS A TRIBELESS-STATE, CONDEMNED AND SINFUL STATE AND BECAUSE IT HAS BEEN CREATED FOR THE PUNISHMENT OF THE SINS OF GREED AND PRIDE. HENCE, THE DECEASED PERSON NEEDS TO BE BROUGHT BACK 5 | P a g e Ethnic Group Of Bangladesh SPIRITUALLY TO HIS/HER OWN FAMILY AND IS INSTALLED AS AN INVISIBLE MEMBER AS HAPRAM (ANCESTOR). THE DECEASED, ALTHOUGH INVISIBLE, REMAIN A PERMANENT MEMBER OF THE FAMILY AND ARE REMEMBERED AND RESPECTED DURING ALL THEIR FAMILY OCCASIONS. THE SANTALS BELIEVE THAT â€Å"WHEN [A] HUMAN BEING BECOMES PERFECTLY FREE FROM ALL GREED AND PRIDE THIS STATE WILL BE REMOVED AND THAT WILL BE THE NEW CREATION, WHICH IN CHRISTIANITY MAY BE COMPARED WITH THE STATE OF SALVATION. FOR THE SANTALS, THERE IS NO CLEAR DISTINCTION BETWEEN THE SACRED AND THE PROFANE, RELIGIOUS AND NON-RELIGIOUS, SPIRITUAL AND THE MATERIAL AREAS OF LIFE. ANIMALS AND THE MATERIAL WORLD ARE AT THE DISPOSAL OF HUMAN BEINGS FOR THEIR SELF-PRESERVATION AND WELL-BEING. MOREOVER, SANTAL-LIFE IS CLOSELY RELATED TO NATURE AND TO THE WHOLE OF CREATION. LAND AND FOREST REMAIN UNITED WITH SANTAL-IDENTITY AND ARE VERY MUCH REFLECTED IN THEIR LIVES, LOVE, POETRY, SONGS, DANCE AND MUSIC. THE SANTALS, FOR EXAMPLE, ADDRESS TO THE â€Å"SUPREME BEING† AS CANDO BABA (SUN FATHER) AND THE STARS. TOO HAVE DIFFERENT NAMES. ACCORDING TO ARCHER, â€Å"ALTHOUGH FIELDS, HOUSES, MEN AND WOMEN SEEM TO CONSTITUTE A SANTAL VILLAGE, SANTALS REGARD THEM AS AT MOST A PORTION OF THEIR TOTAL WORLD. † 6 | P a g e Ethnic Group Of Bangladesh 4. THE SANTALS IN THEIR SOCIO-CULTURAL REALITIES 4. 1 THE SANTAL-VILLAGE: THE SANTAL VILLAGE IS A PATTERN OF SANTAL LIVING AND IT IS THE MOST TRADITIONAL AND ANCIENT INSTITUTION, WHICH CRYSTALLIZES THE WHOLE SYSTEM OF SOCIAL, POLITICAL, AND RITUAL STRUCTURES. IT COMES INTO EXISTENCE THROUGH THE SPECIAL DISPENSATION OF THE BONGA AND IS SANCTIFIED BY THEIR BLESSINGS. THE PRESENCE OF. DIFFERENT CLANS IN A VILLAGE DEMONSTRATES THE BEAUTY OF A COMMUNITY LIVING AND OBVIOUSLY THE DEMOCRATIC CHARACTER OF THE VILLAGE ADMINISTRATION ITSELF IS A SIGN OF INCREDIBLE RICHNESS OF THE SANTAL SOCIETAL DEALING AND LIVING. A SANTAL VILLAGE IS DEMARCATED WITH AN IMPLICIT BOUNDARY SO THAT IT MAY REMAIN FREE FROM OUTSIDE INTERFERENCE OF EVIL SPIRITS. THE SANTALS BELIEVE THAT QUARRELS AMONG FAMILIES AND GROUPS IN THE VILLAGE, NATURAL CALAMITIES, SICKNESS, EPIDEMICS, ETC. , ARE CAUSED BY LACK OF BALANCE BETWEEN THE FORCES OF GOOD AND EVIL. 4. 2 SOCIAL STRUCTURE OF SANTAL VILLAGE: THE PRIMARY FEATURE OF EVERY SANTAL. VILLAGE IS THE â€Å"MANJHI COUNCIL† OR THE VILLAGE COUNCIL HEADED BY A MANJHI (HEADMAN). THE VILLAGE COUNCIL IS THE REPRESENTATIVE BODY OF THE COMMUNITY CONSISTING OF SEVEN OFFICIALS, NAMELY: MANJHI, PARANIK (A DEPUTY HEADMAN), JOG MANJHI (AN OVERSEER OF THE VILLAGE ON MORAL ISSUES), JOG PARANIK (ASSISTANT TO JOG MANJHI), GODET’ (A MESSENGER), NAEKE (A village priest), and his assistant is Kud m Naeke?. These OFFICIALS IN FACT ARE THE SERVANTS, NOT THE MASTERS OF THE village and their role is purely functional. The M njhi? remains as the overall LEADER OF THE VILLAGE COUNCIL AND PRESIDES OVER THE VILLAGE MEETING BUT WITH THE. ACCEPTED PRINCIPLE THAT NO ONE OVERRULES ANY ONE ELSE. THE FUNCTIONS OF THE COUNCIL ON THE OTHER HAND, ARE CATEGORICALLY DIVIDED AMONG THE MEMBERS IN ORDER TO AVOID ANY OVERLAPPING. THE COUNCIL MEMBERS PERFORM THEIR FUNCTIONS IN ACCORDANCE WITH THEIR TRIBAL CUSTOMS AND TRADITIONS. THE PATTERN OF THE VILLAGE GOVERNANCE OF THE SANTALS IS MOSTLY DEMOCRATIC IN CHARACTER LIKE ANY OTHER DEMOCRATIC INSTITUTION. HOWEVER IN PRESENT TIME, WITH THE INTRODUCTION OF THE GOVERNMENT-SPONSORED UNION PARISAD (LOCAL ADMINISTRATIVE COUNCIL) THE SOCIAL CONTROL OF THE TRADITIONAL m njhi ? council of the Santals is mostly undermined. 7 | P a g e Ethnic Group Of Bangladesh FOLLOWING THE PATRIARCHAL PATTERN, THE MANJHI (LEADER) OF THE VILLAGE FOR THE SANTALS, IS ALWAYS A MALE. THE TITLE OF THE MANJHI IS GENERALLY HEREDITARY AND IT IS PASSED ON PATRILINEALLY. NOW-A-DAYS, THE MALE MEMBERS OF THE VILLAGE MAY ELECT OR EVEN SELECT THEIR OWN HEADMAN UPON COMMON CONSENSUS. THE TERM OF OFFICE IS INDEFINITE BUT CAN BE ALTERED BY GENERAL AGREEMENT ACCORDING TO THE NEED. ALTHOUGH THE OFFICE OF THE HEADMAN IS VOLUNTARY AND HONORARY IN NATURE, THE MEMBERS OF THE MANJHI COUNCIL ARE RESPONSIBLE TO THE COMMUNITY FOR THE SMOOTH RUNNING OF THE VILLAGE PARTICULARLY FOR SOCIAL MATTERS. 4. 3 THE CLANS: SANTALS ARE ENDOGAMIC AS A PEOPLE BECAUSE THEY CANNOT GET MARRIED OUTSIDE THEIR TRIBE, BUT THEY ARE EXOGAMIC AS CLAN BECAUSE THEY CANNOT BE married between the same clan (p ris? ). Traditionally the Santals used to have FOSTERED A TOTAL OF TWELVE CLANS BUT UNFORTUNATELY IN THE COURSE OF HISTORY ONE HAS BEEN MISSING. THE CLANS ARE: 1) BASKEY, 2) BESRA, 3) CORE, 4) HASDAK’, 5) Hembrom, 6) Kisku, 7) Marandi, 8) Murmu, 9) P uria, 10) Soren, 11) Tudu, and ? 12) BEDEA (THE LOST ONE). MAJOR FUNCTIONS OF THE CLANS ARE TO REGULATE MARRIAGE, INHERITANCE, SUCCESSION AND AFFILIATION (ALI 1988; ALSO HOSSAIN 2000). ONE BECOMES A CLAN MEMBER BY BIRTH. IT IS SAID THAT THESE CLANS ARE HIERARCHICALLY ORDERED ON THE BASIS OF OCCUPATION, LIKE: Kisku raja (king), Marandi Kipis r ? (wealthy or richer), Murmu Th kur ? (priest), Soren Sip hi ? (warrior), Tudu M nd ri ? ? ? (musician), and so on and so forth. HOWEVER, ACCORDING TO THE RESEARCHER, THESE OCCUPATIONAL HIERARCHIES OF STATUS DO NOT HAVE ANY IMPACT ON THE SANTALS IN DAILY LIVES. 4. 4 FAMILY AND MARRIAGE: FAMILY IS THE PRIMARY UNIT OF HUMAN SOCIETY. THE FAMILY AMONG THE SANTALS CAN BE TERMED AS OF BIOLOGICAL, JOINT, AND EXTENDED. A. HUSBAND, HIS WIFE AND THEIR UNMARRIED CHILDREN FORM PART OF THE BIOLOGICAL OR NUCLEAR FAMILY. A HUSBAND, HIS WIFE AND HIS MARRIED AND UNMARRIED SONS AND DAUGHTERS AND SOMETIMES HIS OLD PARENTS, BROTHER AND HIS FAMILY FORM PART OF THE JOINT FAMILY OR EXTENDED FAMILY TYPE. ACCORDING TO THE SANTALS, MARRIAGE IS AN UNION BETWEEN A MAN AND A WOMAN, WHICH IS SOCIALLY RECOGNIZED; CULTURALLY AND RELIGIOUSLY IT ALLOWS THE COUPLE TO LIVE IN A FAMILY. A SANTAL MARRIAGE CAN BE DESCRIBED ALSO AS A LEGAL TRANSFER OF DEPENDENCY OF THE 8 | P a g e Ethnic Group Of Bangladesh BRIDE, FROM HER FATHER’S FAMILY TO THE GROOM’S FAMILY. BY THIS TRANSFER, THE GROOM’S FAMILY DOES NOT ONLY ASSUME GUARDIANSHIP BUT ALSO ASSUMES CONTROL OVER ALL HER AFFAIRS. THROUGH MARRIAGE THE BRIDE LOOSES HER PATERNAL LEGAL IDENTITY AND ACQUIRES THE IDENTITY OF THE GROOM’S FAMILY. IN THE INSTITUTIONAL SENSE, MARRIAGE IS THE PARTNERSHIP BETWEEN A MAN AND A WOMAN REGULATED BY CUSTOMARY LAWS THAT ENHANCE LEGAL UNION BETWEEN THE SEXES AND DEFINE THE PROCEDURES FOR ESTABLISHING THE HUSBAND-WIFE RELATION, THE RECIPROCAL OBLIGATIONS AND THE ACCEPTED RESTRICTIONS UPON ITS PERSONNEL. AS TO THE ORIGIN AND INSTITUTION OF MARRIAGE, THE SANTALS BELIEVE THAT THE CREATOR. HIMSELF HAS ESTABLISHED MARRIAGE. THAT IS, THE THAKUR JIU WHO CREATED THE FIRST HUMAN PAIR (PILCU HARAM AND PILCU BUDHI) HAS ALSO INSTITUTED MARRIAGE. ALTHOUGH THERE ARE SOME INSTANCES OF POLYGAMY, MONOGAMY IS THE NATURE OF MOST SANTAL MARRIAGES. BESIDES SERVING SEXUAL NEEDS AND PROCREATION OF HEIRS, A SANTAL MARRIAGE HAS ALSO OTHER PURPOSES, SUCH AS COMPANIONSHIP, FORMATION OF FAMILY, ECONOMIC SECURITY, COOPERATION IN THE FAMILY ENTERPRISE, SOCIAL AND PSYCHOLOGICAL SECURITY, ETC. THUS, SANTAL MARRIAGE IS NOT ONLY BETWEEN TWO PERSONS OF OPPOSITE SEX BUT IT ALSO BECOMES A BOND OF UNION BETWEEN TWO FAMILIES, TWO VILLAGES, AND. ALSO INFLUENCES THE CIRCLE OF RELATIONSHIP AMONG THE RELATIVES. M. A. JALIL MENTIONS FOUR TYPES OF MARRIAGE AMONG THE SANTALS IN BANGLADESH. THESE ARE: 1) DANGWA BAPLA (CONTACT MARRIAGE), 2) ANGIR BAPLA (LOVE MARRIAGE), 3) OR BAPLA (FORCE MARRIAGE), AND 4) ITUT’ BAPLA (TACTICAL MARRIAGE). MOREOVER, SANTALS DO HAVE EXCEPTIONS ESPECIALLY IN THE CASE OF MARRIAGE BETWEEN CANDIDATES OF THE SAME CLAN. FOR EXAMPLE, WHEN THE MARRIAGE OF A YOUNG COUPLE OF THE SAME CLAN FOR A VALID REASON BECOMES NECESSARY, AND CONSANGUINITY OR AFFINITY DOES NOT PREVENT IT, THEY APPLY A JURIDICAL PRETENSE. IN SUCH CASE, AN ELDERLY COUPLE OF A DIFFERENT CLAN, ADOPTS THE BRIDE AS THEIR DAUGHTER THROUGH A SIMPLE RITUAL CEREMONY AND GIVES THE PROPER NAME TO HER. 4. 5 ANNUAL FESTIVALS AND CEREMONIES: THE SANTAL SOCIETY IS MARKED WITH FEASTS, FESTIVALS AND RITUAL CELEBRATIONS. ONE OF THE TERMS OFTEN used by the Santals is r sk? ? meaning happiness, or joy, WHICH IS NOT ONLY DEAR TO THEIR HEARTS BUT IS PART AND PARCEL OF THEIR LIFE. THUS, WE FIND DANCING AND SINGING HAVE A VERY IMPORTANT ROLE AT EVERY FESTIVAL OCCASION. IT BRINGS A SANTAL TO FORGET WORRIES AND STRESSES OF HIS OR HER 9 | P a g e. Ethnic Group Of Bangladesh DAY-TO-DAY LIFE. IN THE SOCIAL LIFE OF THE SANTALS, FEASTS AND FESTIVALS HAVE GREAT SIGNIFICANCE FOR THESE ARE THE LIVING EXPRESSION OF THE DEEP ASPIRATION OF JOY AND HAPPINESS, AND ALSO DEMONSTRATE THE FEELING OF COMMUNITY AND SOLIDARITY INTEGRATED AS PART OF THE NATURE OF THE SANTALS. MANY OF SUCH CHARACTERISTICS ARE EXPRESSED IN SONGS, MUSIC AND IN DANCE. IN FACT, THE SANTALS DON’T GIVE ANY SPACE TO INDIVIDUALISM AND IT IS REALLY DURING THE FEASTS AND FESTIVALS THAT AN INDIVIDUAL REALIZES HIMSELF OR HERSELF IN THE COMMUNITY AND HIS OR HER FUTURE ROLE IN THE LIFE OF THE COMMUNITY. ALTHOUGH, MOST OF THESE FESTIVALS SEEMINGLY APPEAR AS MERE GATHERING OF CLOSE FRIENDS AND RELATIVES, INDIVIDUALS OF THE SAME SUB-CLAN OR THAT CONCERN ONLY THE INHABITANTS OF A VILLAGE; YET, THERE ARE ALSO OCCASIONS THAT INVOLVE MORE VILLAGES, AS IT USUALLY HAPPENS ON THE OCCASION OF MARRIAGE WHEN PARTICIPATION IS MOSTLY UNANIMOUS. IN ANY OF THESE FEASTS AND FESTIVALS, THERE ARE CERTAIN RITES AND RITUALS BEING FOLLOWED OFTEN ACCOMPANIED BY SIMPLE OFFERING AT THE CENTER. ABLUTIONS AND UNCTION OF OIL, THE USE OF VERMILION TO MARK THE SACRIFICIAL VICTIM AND EVEN BEING USED BY THE PARTICIPANTS, BEARS A GREATER SIGNIFICANCE. IN FACT, SOME OF THESE FESTIVAL PERFORMANCES CONSIST OF SOME SORT OF WORSHIP OR FOLK CULTS. FROM THE RITES AND FESTIVALS OF THE SANTALS, IT IS QUITE CLEAR THAT THEIR ECONOMIC LIFE, SOCIAL ORGANIZATION AND RITUAL PERFORMANCES ARE INTERWOVEN MAINLY AROUND AGRICULTURE. THE SANTALS BELIEVE THAT THE ASPECTS OF MATERIAL LIFE MUST BE PROTECTED AND GUARDED BY APPROPRIATE RITES AND FESTIVALS; AND BONGA (SPIRITS) MUST BE SATISFIED BY GIVING THEIR DUE SHARES. MANY OF THE SOCIO-CULTURAL FESTIVALS AND RITUALISTIC CELEBRATIONS INDICATE THAT SANTALS. HAVE DEEPER INSIGHTS THAT GO BEYOND MERE EXTERNAL CELEBRATIONS. HOWEVER, DUE TO THE SCOPE AND LIMITATION OF THIS STUDY, WE ONLY MENTION SOME MAIN ANNUAL FESTIVALS AND CEREMONIES COMMONLY OBSERVED LIKE: SOHORAE (HARVEST FESTIVAL), BAHA (FLOWER festival), Erok’ (sowing of rice seeds in the field), Iri-Gundli N wai? (offering of THE FIRST FRUITS OF THE MILLET IRI), JANTHAR (OFFERING OF THE FIRST FRUITS OF THE WINTER RICE CROP). SANTALS ALSO HAVE OCCASIONAL RITES AND FESTIVALS, WHICH ARE NEITHER ASSOCIATED WITH AGRICULTURAL OPERATIONS NOR PERFORMED ANNUALLY. SOME OF THESE ARE: JOM SIM, MAK’ MORE AND KARAM. 10 | P a g e Ethnic Group Of Bangladesh 5. SOCIO-ECONOMIC AND POLITICAL REALITIES 5. 1 OCCUPATIONS AND LIVING: TRADITIONALLY SANTALS ARE MAINLY AGRICULTURISTS. THEY CLING TO THEIR LAND AS THEIR PRINCIPAL OCCUPATION AND MEANS OF SUBSISTENCE. ABOUT 95% OF THE SANTALS ARE INVOLVED IN AGRICULTURAL OPERATIONS. INDUSTRIOUS AND HARDWORKING AS THEY ARE, UNFORTUNATELY THE SCIENTIFIC SIDE OF THEIR KNOWLEDGE ABOUT CULTIVATION AND MANAGING THEIR LAND HAS NOT BEEN DEVELOPED. IN THE PAST THE MAJORITY OF THE SANTALS WERE LANDOWNERS, BUT DUE TO THE INCREASE IN POPULATION, EXPLOITATION BY MONEYLENDERS AND LANDLORDS, ILLEGAL. OCCUPATION OF THEIR LAND, POVERTY AND ILLITERACY, NATURAL CALAMITIES ETC. THE VAST MAJORITY OF THE SANTALS IN BANGLADESH HAVE LOST THEIR LAND PROPERTIES. AT PRESENT, NEARLY 80% OF THE SANTALS ARE LAND-LESS, FORCING THEM TO EARN THEIR LIVELIHOOD DEPENDING ON THE MERCY AND AVAILABILITY OF WORK IN THE FIELDS OF THEIR MUSLIM OR HINDU NEIGHBORS FOR THEIR MERE SUBSISTENCE. YET, IT IS SIGNIFICANT TO NOTE THAT TRADITIONALLY THERE ARE NO BEGGARS AMONG THE SANTALS. RATHER, THE SANTALS IN THE TIME OF DIRE POVERTY GO TO THE JUNGLE TO COLLECT WILD PLANTS, FRUITS, WILD POTATOES AND ROOTS OF YOUNG SHOOTS, FLOWERS, MUSHROOMS, ETC. HUNTING AND FISHING THAT USED TO BE PART OF SANTAL-LIVING, HAVE NOW BECOME SECONDARY IMPORTANCE DUE TO THE CHANGE OF SITUATION. LACK OF EMPLOYMENT OPPORTUNITIES IN THE VILLAGE AREAS, ALSO FORCED MANY SANTALS TO FLOCK TO THE NEARBY TOWNS AND CITIES IN SEARCH OF DAILY WAGES AND JOBS. THE WOMEN IN SANTAL SOCIETY PLAY AN IMPORTANT ROLE IN MAINTAINING THEIR FAMILIES BUT IN REALITY THEY REMAIN DEPRIVED OF THEIR EQUAL RIGHT, WHICH IS REFLECTED BY THE FACT THAT WOMEN ARE NOT ELIGIBLE FOR THE INHERITANCE OF PROPERTIES. SANTALS HAVE NEVER BEEN FOUND TO BE INTERESTED IN COMMERCE OR ANY SUCH PROFESSION TO AVAIL OF ECONOMIC SELF-RELIANCE. THIS IS ONE OF THE REASONS WHY. THEY REMAIN RATHER MARGINALIZED INVITING POVERTY IN THEIR LIVES. MOREOVER, MOST SANTALS DO NOT THINK ABOUT FUTURE, RATHER THEY ARE MORE CONCERNED FOR THE DAY; IT’S A DAY-TO-DAY LIVING AND THEY REMAIN SATISFIED AND HAPPY WITH THE LITTLE THEY CAN HAVE FOR MAINTAINING THEIR FAMILY. HOWEVER, DUE TO SOME PROGRESS IN EDUCATION, A SMALL NUMBER OF SANTALS HAVE BEEN ABLE TO MAKE LITTLE CHANGES IN THEIR WAY OF LIVING. 11 | P a g e Ethnic Group Of Bangladesh SOME HAVE TAKEN UP MODERN PROFESSIONS LIKE TEACHINGS, TECHNICAL ASSISTANCE, JUDICIAL ADVOCACY, NURSING ETC. 5. 2 POLITICAL REALITY: SANTALS, A PEACE LOVING PEOPLE HAVE NEVER BEEN FOUND INTERESTED IN POLITICS. YET, THEY HAVE ALWAYS REACTED WHEN THINGS WENT SEVERELY PAINFUL AND THEY WERE PUSHED AGAINST THE WALL WHEN THEY COULD NOT BEAR ANYMORE. THE HISTORIC SANTAL REVOLUTION IN 1855-56, THE TEBHAGA ANDOLON (SHARE CROPPERS’ MOVEMENT) IN 1945, AND THE NACHOL BIDROHO (FARMERS’ REVOLUTION) IN THE YEAR 1950, ARE THE CONCRETE EXAMPLES OF THE PAST. IN FACT, SANTALS HAVE ALWAYS BEEN USED BY OTHERS IN THE FOREFRONT BATTLE. ILLITERACY, ABSENCE OF ORGANIZATIONAL SET UP AND LACK OF GENUINE. LEADERSHIP HAVE KEPT THE SANTALS FAR FROM ACHIEVING ANY END RESULT. IN RECENT YEARS, SOME OF THE SANTALS HAVE BEEN FOUND TO TAKE ACTIVE ROLE IN THE LOCAL POLITICS BY THEIR PARTICIPATION IN THE LOCAL ELECTION. 12 | P a g e Ethnic Group Of Bangladesh 6. BELIEFS AND RITUAL PRACTICES 6. 1 THE BELIEF IN ONE SUPREME BEING: AS IT HAS ALREADY BEEN MENTIONED EARLIER, SANTALS DO BELIEVE IN ONE â€Å"SUPREME BEING† WHOM THEY CALL THAKUR JIU (LIFE GIVER) OR MARANG BURU (GREAT MOUNTAIN) WHO IS CONSIDERED TO BE THE â€Å"SUPREME† AMONG ALL THE â€Å"RELIGIOUS BEINGS†. THE MOST COMMON SANTAL-TERM USED FOR THE SUPREME BEING. THESE DAYS IS CANDO BABA (SUN FATHER). ACCORDING TO THE EXPERIENCE OF THE RESEARCHER THE SANTALS HERE DO NOT REFER LITERALLY TO THE SUN ITSELF RATHER, IT IS AN EXPRESSION OF A DIVINE ACTIVITY: EXPRESSION OF DIVINE LOVE IN RELATION TO HUMAN BEINGS. FOR THE SANTALS, CANDO BABA IS A BENEVOLENT DEITY WHO ORGANIZES THE DAYS AND NIGHTS AND IS RESPONSIBLE FOR HEAT AND COLD, RAIN AND SUNSHINE; AND FROM A DWELLING ‘SOMEWHERE IN THE SKY’, ALLOTS EACH SANTAL A TERM OF LIFE HERE ON EARTH. BUT, HE STAYS FAR AWAY, FAR ABOVE THE SKY AND CANNOT BE REACHED. IT IS UNDERNEATH. THE SUN, BENEATH THE CLOUDS, THAT SANTAL LIFE IS CHALLENGED. HERE THE BONGA ROAM AROUND AND ONLY BY COMING TO TERMS WITH THEM CAN SANTALS BE HAPPY. 6. 2 THE BELIEF IN BONGA (SPIRITS): THE SANTALS BELIEVE IN THE EXISTENCE OF THE SPIRITS WHO ARE CALLED BONGA. THE BONGA HAVE MUCH REPERCUSSION ON DAILY LIVING OF THE SANTALS. TO ENSURE THEIR CONTINUING CARE, BESIDE ANNUAL SACRIFICES, THE BONGA ARE REMEMBERED IN A DAILY BASIS. WHENEVER A MEAL IS TAKEN, A SMALL PORTION OF THE FOOD IS DROPPED ON THE FLOOR FOR THE BONGA, OR AT THE TIME WHENEVER RICE-BEER IS DRUNK, A LITTLE IS SPILT ON THE GROUND FOR MARANG BURU. THUS, THE SANTALS LIVE NOT ONLY IN THEIR TRIBAL SOCIETY BUT IN A GREATER SOCIETY CONSISTING OF SUPERNATURAL BEINGS AS WELL. IN PRACTICE, THE SANTALS OFTEN USE THE TERM BONGA MEANING â€Å"TO INCORPORATE† SOMEONE INTO THE SOCIETY BY DOING CERTAIN RITUAL. THE PHRASE USED IN THIS CASE IS: BONGA TALA KEDEAKO MEANING, HE/SHE HAS BEEN ADMITTED INTO SANTAL SOCIETY. ACCORDING TO THE SANTAL RELIGIOUS BELIEF THERE ARE TWO TYPES OF BONGA—THE MALEVOLENT AND THE BENEVOLENT ONES. THE BONGA-WORSHIP IS PRIMARILY TO PLEASE AND TO INVOKE THE POWERS OF THE BENEVOLENT BONGA AND TO AVERT THE ILL WILL OF THE MALEVOLENT BONGA. IN THE WORSHIP OF BONGA WE CAN DISTINGUISH ANALYTICALLY TWO INTERRELATED ASPECTS: 13 | P a g e Ethnic Group Of Bangladesh A) THE OBJECTIVE ASPECT OF THE RELIGIOUS RITES IS TO HAVE AN ALLIANCE WITH THE BENEVOLENT BONGA AND THEREBY CONTROLLING OR EVEN DEFEATING THE POWERS OF THE MALEVOLENT BONGA; AND B) THE EXPRESSIVE ASPECT OF THE WORSHIP IS MANIFESTED THROUGH VARIOUS SEASONAL AND RELIGIOUS RITES, FESTIVALS AND RITES ASSOCIATED WITH VARIOUS SOCIAL RITUALS. SANTALS HAVE AN INNATE RELATIONSHIP WITH THEIR BONGA AND CONSIDER THEMSELVES LIVING WITH THEM. THIS RELATIONSHIP IS MOSTLY OF DEPENDENCE, SUBMISSION, PROPITIATION AND REVERENTIAL FEAR. THE SANTALS DO SUPPLICATIONS; OFFER RICE-BEER; AND ANIMAL SACRIFICES IN THE NAME OF THE BONGA. IT IS WORTH MENTIONING THAT THERE ARE INSTANCES AMONG THE SANTALS IN THE RURAL VILLAGES WHERE PERSONS EVEN IN TIME OF SERIOUS SICKNESS WOULD NOT LOOK FOR MEDICAL HELP INSTEAD LEAVE IT TO THE BONGA TO BE CURED. 6. 3 BELIEF IN WITCHCRAFT: RELATED TO SANTAL BELIEF-SYSTEM, IS ALSO THE EXISTENCE OF WITCHES. THE SANTALS BELIEVE THAT THERE ARE CERTAIN PEOPLE, ESPECIALLY WOMEN, WHO POSSESS SPECIAL POWER AND TECHNIQUES TO HARM PEOPLE, CATTLE, AND CROPS. THESE SO-CALLED WITCHES ARE INVOLVED IN DOING HARMFUL ACTIVITIES LIKE GIVING POISONS, TAKING OUT HUMAN LIVERS, SENDING TROUBLESOME SPIRITS TO CERTAIN FAMILIES AND CHANGING THEMSELVES INTO BLACK CATS. BECAUSE OF SUCH BELIEF IN WITCHCRAFT PRACTICES, THE SANTALS EASILY SUSPECT ONE ANOTHER, AND ARE OFTEN LED TO FIGHT. IT IS PRESUMED THAT IT IS ESSENTIAL TO HAVE SUCH A BELIEF ESPECIALLY IN THE PAGAN WORLD. HOWEVER, THERE IS ALSO A COUNTER-BELIEF AMONG THE SANTALS THAT THERE ARE CERTAIN PEOPLE OJHA-JANGURU (SPECIALISTS), MAINLY MEN, WHO POSSESS SPECIAL POWER AND. TECHNIQUES FOR DETECTING WITCHES AND NULLIFYING THEIR SPELLS. THUS, WHENEVER SANTALS GET INTO TROUBLE, THEY SEEK THE HELP OF THESE PEOPLE WHO, MORE OFTEN EXPLOIT THE SOCIETY. REFERRING TO THE SICKNESS AND OTHER PROBLEMS, THE SANTALS BELIEVE THAT THEY ARE CAUSED BY THE EVIL SPIRITS WHEN THEY BECOME DISSATISFIED WITH THE SACRIFICES OF THE PEOPLE OR WHEN THEY THINK THAT THEY ARE BEING MANIPULATED BY SOME EVIL-MINDED PEOPLE (WITCHES). THEREFORE, THE SANTALS TRY TO IDENTIFY THE AGENTS OF THE TROUBLE THROUGH THE HELP OF OJHA–JANGURU AND TRY TO PACIFY EACH AGENT THROUGH VARIOUS SACRIFICES. 14 | P a g e. Ethnic Group Of Bangladesh 6. 4 THE ANCESTORS: FROM THE RITES AND RITUALS AS PRACTICED BY THE SANTALS, IT IS QUITE EVIDENT THAT ANCESTOR-WORSHIP IS A COMMON FEATURE AMONG THEM. THE DEAD ANCESTORS ARE THE REAL BENEFACTORS OF THE FAMILIES OR GROUPS TO WHICH THEY BELONGED AND THAT THEY ARE EASILY APPROACHABLE BY THEIR LIVING KINSMEN. HENCE, AT ALL IMPORTANT OCCASIONS OF BIRTH, OF MARRIAGE OR OF DEATH THE DECEASED ANCESTORS ARE REMEMBERED AND OFFERED SACRIFICES. 6. 5 THE JAHERTHAN OR THE SACRED GROVE IS AN ESSENTIAL PART OF A SANTAL VILLAGE. IT IS A SACRED PLACE OF SPECIAL WORSHIP FOR THE SANTALS. AFTER A VILLAGE HAS BEEN SET UP, A JAHERTHAN IS INSTALLED THROUGH RITUAL CEREMONY AT THE OUTSKIRT OF THE VILLAGE. THE MAIN DEITY OF THE JAHERTHAN, IS KNOWN AS JAHER ERA (THE LADY OF THE GROVE). ACCORDING TO THE SANTALS, SHE RESIDES THERE BESIDES OTHER IMPORTANT DEITIES SUCH AS THE MOREKO-TURUIKO (LITERALLY MEANS †FIVE-SIX†). THE JAHER ERA PRESIDES OVER THE SACRED GROVE, TENDS OVER OTHER BONGA IN THE JAHERTHAN AND LOOKS AFTER THE INTERESTS OF THE VILLAGERS ESPECIALLY FOR THEIR PHYSICAL NEEDS. THE SPIRITS OF THE JAHERTHAN ARE WORSHIPPED DURING THE PRINCIPAL FESTIVALS, LIKE SOHORAE (HARVEST FESTIVAL), BAHA. (FLOWER FESTIVAL), EROK’ (SOWING FESTIVAL), AND SO ON FOR THE GENERAL WELFARE OF THE VILLAGE PARTICULARLY FOR OBTAINING GOOD CROPS AND FOR THE HEALTH OF THE VILLAGERS AND THEIR LIVESTOCK. 6. 6 The M njhithan? or the altar of the headman is placed along side the kulhi (VILLAGE ROAD) OR OFTEN AT THE CENTRAL PLACE OF THE VILLAGE OR IN FRONT THE HOUSE OF THE M njhi? (the headman). It is believed that the Manjhi bonga (spirit of the headman) RESIDES IN THIS ALTAR AND ACTS AS THE SPIRITUAL ADVISER OF THE HEADMAN. HERE THE M njhi? offers sacrifice for the benefit of himself, his family and for the whole. VILLAGE. 6. 7 THE â€Å"HOUSE-ALTAR†: IN THE INNER SIDE OF A SANTAL HOUSE, THERE REMAINS THE bhit r, ? a tiny compartment, which is the darkest space of the house. It is the abode OF THE ORAK BONGA (HOUSE SPIRITS) OR OFTEN KNOWN AS ABGE BONGA—THE BONGA OF THE SUB-CLAN. THE HEAD OF THE FAMILY DOES THE WORSHIP. IN ANY OCCASION OF THE FAMILY AND SOCIAL FESTIVALS, FOOD OFFERING IS MADE ON THIS ALTAR. THE NAMES OF THE ORAK BONGA ARE NOT REVEALED TO OUTSIDERS AND EVEN TO THE FEMALE MEMBERS OF THE HOUSE RATHER, HANDED DOWN FROM FATHER TO SON. USUALLY THE ELDEST SON RECEIVES THE NAME FROM HIS FATHER. 15 | P a g e. Ethnic Group Of Bangladesh The bhit r? is also used as a secret place to germinate and to store h ndi ? (rice beer), WHICH IS NOT ONLY USED AS NORMAL DRINK BUT ITS USE IS SIGNIFICANT AND EXTENDED TO SOCIO-CULTURAL RITUALISTIC CELEBRATIONS, AND EVEN THAT TO BE OFFERED TO SATISFY THE BONGA. 6. 8 THE â€Å"AFTER-LIFE† IS THE CONTINUATION OF LIFE THAT IS LIVED IN THIS WORLD. THE SANTALS BELIEVE THAT THE SPIRIT OF THE DECEASED GOES TO A SHADOWY WORLD WHERE THE PERSON REQUIRES THE MATERIALS OF THIS WORLD. THIS IS WELL EXPRESSED WITH THE RITUAL PRACTICES DONE AT THE TIME OF BURIAL AND DURING THE BHANDAN, THE LAST CEREMONY DONE. IN HONOR OF THE DEAD. IN THE PAST, IT WAS PERFORMED IMMEDIATELY AFTER ALL THE REQUIREMENTS HAD BEEN FULFILLED FOR THE DECEASED PERSON, BUT IN PRESENT DAYS SUCH CEREMONY, IN A RICH FAMILY, IS DONE WITHIN TWO OR THREE MONTHS FROM THE DEATH AND IN A POOR FAMILY, IT IS ONE YEAR OR TWO. FOR THE SANTALS, THE MORE NUMEROUS ARE THE ANIMAL-VICTIMS OFFERED IN HONOR OF THE DEAD DURING THE BHANDAN, THE MORE WOULD BE THE ANIMALS THAT THE ANCESTOR WILL HAVE IN THE OTHER WORLD. MOST ANIMAL-VICTIMS ARE DONATED BY THE RELATIVES AND NONE OF THEM ARE TO BE SPARED FOR FUTURE USE BY THE FAMILY CONCERNED. TRADITIONALLY EVERY SANTAL, MALE AND FEMALE, IS SUPPOSED TO BEAR UNDELETABLE SCARS on the body. For the male, it is the sik? that must be at least three scars REPRESENTING JION (LIFE), MORON (DEATH), AND JION (LIFE). THE SANTAL WOMEN DO NOT practice sik? , but to escape to be devoured by the worms in the life-after, they have THEIR CHEST TATTOOED, WHICH IS CALLED BY THE SANTALS KHODA. FR. PUSSETTO, WITH HIS VAST EXPERIENCE WITH THE SANTALS TESTIFIED: I HAVE NOT ONLY SEEN SANTAL WOMEN TATTOOED ON THE CHEST BUT ALSO ON THE BACK, ON THE FACE, ON THE ARMS AND ON THE LEGS; THE TATTOO WERE ENOUGH COMPLICATED, BUT PURELY ORNAMENTAL†¦THE TA.