Saturday, January 25, 2020

Merchant Of Venice - Plot Structure :: Free Merchant of Venice Essays

Show how the plot of ‘The Merchant of Venice’ is apparently fanciful but in reality exactingly structured. â€Å"The Merchant of Venice is a fairy tale. There is no more reality in Shylock’s bond and the Lord of Belmont’s will than in Jack and the Beanstalk.† H. Granville-Barker, in Prefaces to Shakespeare. This is one way of looking at the play, reading it or enjoying the performance. But it can be a contradiction to our actual feelings about this complex play. ‘The Merchant of Venice’ might appear to be a romantic tale without much logic but that would be a superficial interpretation. Portia’s father may have raised our concerns in taking away her freedom to choose her beloved; Shylock’s bond and those conditions may violate most legal codes; but the way the play moves takes one beyond these doubts and objections. In ‘The Merchant of Venice’ Shakespeare creates an interesting contrast between the mercantile and tumultuous city of Venice and the peaceful and gracious world of Belmont. The striking difference between these two settings helps to capture and maintain our attention. There are differences in the value of systems of the people belonging to the two different cities. The contrast between Venice and Belmont is that one place is where money is made and the other where it is spent. One is characterised by light and sunshine and the other by moonlight and music. Wealth is described in almost sensuous terms like when Salerio says â€Å"†¦touching but my gentle vessel’s side†¦Enrobe the roaring waters with my silks.† And in an ironic way later love is talked about in commercial terms. Another contrast is presented when the scenes shift from Venice to Belmont. When we hear of Shylock’s hatred and his terms of the bond, our anxiety builds. But then the play moves on to Belmont and the mood shifts from a sort of harshness and tension to a world of romance and graciousness. The most striking contrast is between the court room scene in Act IV and the opening scene of Act V which takes place on a starlit, romantic night in Belmont. Venice could also be a sort of â€Å"a disguise† for London. Venice is â€Å"poised between Christians† on one hand whose acquisitive practices do not match up with their protestations against usury and Jews on the other whose dealings rest on the â€Å"double pillars of expediency and Levitical Law† Shylock’s attitude to money is contrasted with that of the Christians. Merchant Of Venice - Plot Structure :: Free Merchant of Venice Essays Show how the plot of ‘The Merchant of Venice’ is apparently fanciful but in reality exactingly structured. â€Å"The Merchant of Venice is a fairy tale. There is no more reality in Shylock’s bond and the Lord of Belmont’s will than in Jack and the Beanstalk.† H. Granville-Barker, in Prefaces to Shakespeare. This is one way of looking at the play, reading it or enjoying the performance. But it can be a contradiction to our actual feelings about this complex play. ‘The Merchant of Venice’ might appear to be a romantic tale without much logic but that would be a superficial interpretation. Portia’s father may have raised our concerns in taking away her freedom to choose her beloved; Shylock’s bond and those conditions may violate most legal codes; but the way the play moves takes one beyond these doubts and objections. In ‘The Merchant of Venice’ Shakespeare creates an interesting contrast between the mercantile and tumultuous city of Venice and the peaceful and gracious world of Belmont. The striking difference between these two settings helps to capture and maintain our attention. There are differences in the value of systems of the people belonging to the two different cities. The contrast between Venice and Belmont is that one place is where money is made and the other where it is spent. One is characterised by light and sunshine and the other by moonlight and music. Wealth is described in almost sensuous terms like when Salerio says â€Å"†¦touching but my gentle vessel’s side†¦Enrobe the roaring waters with my silks.† And in an ironic way later love is talked about in commercial terms. Another contrast is presented when the scenes shift from Venice to Belmont. When we hear of Shylock’s hatred and his terms of the bond, our anxiety builds. But then the play moves on to Belmont and the mood shifts from a sort of harshness and tension to a world of romance and graciousness. The most striking contrast is between the court room scene in Act IV and the opening scene of Act V which takes place on a starlit, romantic night in Belmont. Venice could also be a sort of â€Å"a disguise† for London. Venice is â€Å"poised between Christians† on one hand whose acquisitive practices do not match up with their protestations against usury and Jews on the other whose dealings rest on the â€Å"double pillars of expediency and Levitical Law† Shylock’s attitude to money is contrasted with that of the Christians.

Friday, January 17, 2020

Design of Industrial Robots

Abstraction Today, industrial automaton is used in assorted intents such as welding, picture, choice and topographic point, production review, and proving. Because of its popular, industrial automaton has become interesting field, many companies, research centres and scientists spend much of money, clip to better features of industrial automaton. Simulation is a cardinal competency for both robot makers, users and scientists to better automaton public presentation, safety and cut down automaton cost, power, clip. In this thesis, brief kinematics, kineticss and control theory are mentioned ; equations from these theories are applied for R-R and R-R-R operator, so these consequences are compared with simulation consequences to verify simulation consequences. In add-on, a simple existent theoretical account is built with 2 dynamixel servo motors ; the existent theoretical account can make simple work such as traveling point to indicate, following consecutive line. The simulations of automaton operator are performed by Recurdyn-Colink and Recurdyn-Matlab/Simulink. Forward and reverse kinematics are used to simulation automaton operator to execute progress trajectory way, the consequences from these simulations are used in kineticss subdivision. PD feedforward control besides is indicated, the control system based on independent articulation control, which frequently is known as single-input/ single-output system. These consequences from simulation are tantamount with theory. These consequences besides provide a batch of utile information for a batch of intents such as layout rating to avoid obstruction, optimisation flight way, kinematics, kineticss study. Keywords: automaton operator, kinematics, kineticss, feedforward control. 1 IntroductionMotivation and history of industrial automatonToday, we can run into industrial automaton in many mills in the universe. Applications of industrial automatons include welding, picture, choice and topographic point ( packing or SMT line ) , production review, and proving. Harmonizing to the International Federation of Robotics ( IFR ) , by the terminal of 2011, there were at least 1,153,000 operational industrial automatons. And IFR estimated the world-wide gross revenues of industrial automatons about US $ 8.5 billion. If cost of package, peripherals and systems technology are included, the industrial automaton market was estimated US $ 25.5 billion in 2011. Therefore, industrial automaton has been become an interesting field. Along with development of industrial automaton, simulation and theoretical account of industrial automatons are of import. They can supply a batch of utile information for many intents such as layout rating, kinematic, dynamic survey, off-line sched uling to avoid obstruction in the undertaking infinite and design mechanical construction of automatons. The history of industrial automaton has associated with the development of computing machine aided design ( CAD ) and computing machine aided fabrication ( CAM ) systems. In 1954, George Devol applied for the first robotics patents ( granted in 1961 ) . In 1956, Devol and Joseph F. Engelberger formed the world’s foremost robot company was Unimation which was based on Devol’s original patents and Engelberger has been called as the male parent of robotics. Unimation has been built with hydraulic actuators and programmed in joint co-ordinates. The angle of each articulation was stored during a teaching stage and replayed in operation. In the 70s the automaton industry increased really rapidly because of the tremendous investings by the automotive industry. In Europe, ABB Robotics and KUKA Robotics brought automatons to the market in 1973. ABB Robotics introduced IRB 6, it was become the first commercially operator which controlled all electric by micro-processor in the universe. The first two IRB 6 automatons were installed in production for crunching and smoothing pipe decompression sicknesss in 1974. In 1973 KUKA Robotics built its first automaton, FAMULUS, besides one of the first articulated automatons have driven six electromechanically axes. In US, many US companies entered the field, including elephantine companies such as General Electric, and General Motors ( a joint venture formed by General Motors and FANUC LTD of Japan called FANUC Robotics ) . Other companies besides started robotics concern such as Automatix and Adept Technology, Inc. In 1984, Unimation was acquired by Westinghouse Electric Corporati on for 107 million U.S. dollars. After that Westinghouse sold Unimation to Staubli Faverges SCA of France in 1988, which is still doing articulated automatons for general industrial and cleanroom applications and even bought the robotic division of Bosch in late 2004.Hardware and SoftwareDuring this thesis, three package ( RecurDyn, SolidWorks, Matlab ) have been used to work out this thesis assignment. Dynamixel servo motor besides was used for experimental intents.RecurDyn V8R2RecurDyn is developed by FunctionBay, Inc. which is a professional CAE company and provides MultiBody Dynamics ( MBD ) . RecurA ­Dyn is a modern CAE package suite which offers the alone combination of Multibody Dynamics, Finite Element Analysis and Controls. Dynamic Rigid and Flexible Body Analysis to the full integrated additive and nonlinear Finite Element Analysis supply item information of realistic theoretical accounts for design surveies and bettering merchandise public presentation. By utilizing FE mesh, RecurDyn can imitate overall gesture every bit good as local distortions, strains and emphasiss. RecurDyn CoLink, an incorporate signal flow oriented control design tool. It provides off-line simulation of mechatronic systems, traveling far beyond the classical Co-Simulation attack. If a elaborate Recurdyn multi flexible organic structure dynamic works theoretical account is used, the user can cut down the figure of cringles during the practical accountant parametric quantity optimisation procedure. In add-on, RecurDyn besides can link with Matlab/Simulink which has a batch of block libraries, plan linguistic communication tool, etc. for dynamic system. Last but non least, RecurDyn has supported a batch of CAD package which are used as the Parasolid Kernel plan.SolidWorksSolidWorks is really popular 3D mechanical computing machine aided design package which runs on Microsoft Windows. It is established by Dassault Systemes SolidWorks Corp. It used Parasolid Kernel attack to make theoretical accounts and assemblies. Presently, over 2 million applied scientists and interior decorator usage SolidWorks at more than 165000 companies in whole universe.MatlabMATLAB is a numerical computer science environment and fourth-generation scheduling linguistic communication including C, C++ , Java, and FORTRAN. Established and developed by MathWorks, MATLAB is good known for matrix uses, plotting of maps and informations, creative activity of user interfaces, and interfacing with plans written in other linguistic communications. In add-on, Simulink is an add-on merchandise with block libraries, informations flow graphical plan linguistic communication tool for mold, simulation, and analysing multi-domain dynamic and embedded systems.DynamixelDYNAMIXEL is a consecutive high public presentation networked actuators for automatons developed by ROBOTIS. DYNAMIXEL can be used for multi-joint robot systems such as robotic weaponries, robotic manus, bi-pedal automaton, hexapod automaton, snake automaton, kinematic art, animatronics and mechanization, etc†¦ DYNAMIXEL can be controlled utilizing Personal computer through USB2Dynamixel by many package such as Matlab, python, Microsoft Visual Studio ( C++ , C # ) , Visual Basic, Java, LabVIEW, occultation, ROS ( TTL/RS485/RS232 communicating ) . DYNAMIXEL besides can be controlled utilizing sole accountant such as CM-5 ( ATMega128 ) , CM-700 ( ATMega2561 ) , CM-510 ( ATMega2561 ) , CM-530 ( ARM Cortex M3 ) . Fig1. Dynamixel servo motorOutlinepartChapter 2. Background theory 2.1 Positions, Orientations, and Frames 2.1.1 Position In a co-ordinate system, any point can place with a 3Ãâ€"1 place vector in the existence. The place of point P in co-ordinate system is ordered set of three Numberss. Fig2. Vector comparative to border { A } 2.1.2 Orientation 2.1.2 Frames In robotics, the state of affairs of a place and an orientation brace arises so frequently is called a frame, which is a set of four vectors including one vector describes place and 3 vectors describe orientation. The base frame, { B } The base frame has place at the base of the automaton operator. It is appended to a unmoving portion of the automaton and frequently called link 0. Fig3. The criterion frame The station frame, { S } The station frame has location in a task-relevant, in the figure above, it is at the corner of a tabular array which the automaton is to work, and all motions of the operator are implemented comparative to it. Sometimes, it is besides called as the existence frame, universe frame or the undertaking frame. The carpus frame, { W } The carpus frame { W } is fastened to the last nexus of the operator. { W } frequently has its beginning fixed at a point called the carpus of the operator, and { W } will travel with the last nexus of the operator. The tool frame, { T } The tool frame { T } is appended to the terminal of any tool the automaton happens to be keeping. { T } is normally located with its beginning between the fingertips of the automaton when the manus is empty. The end frame, { G } The end frame has location to which the automaton is to travel the tool. At the terminal of the gesture, the tool frame should be brought to happenstance with the end frame. Chapter 3 Operator Kinematicss Kinematicss is the scientific discipline of gesture including the place, the speed, the acceleration, and all higher order derived functions of the place variables. This chapter has 4th subdivisions: the Denavit-Hartenberg ( D-H ) parametric quantities, the forward kinematics, the opposite kinematics, the Jacobian. 3.1 Denavit-Hartenberg Any robot operator can be described kinematically by the values of four measures for each nexus. Two describe the nexus itself, and two describe the link’s connexion to a adjacent nexus. The definition of mechanisms by 4th measures is a convention normally called the Denavit-Hartenberg notation. Fig4. Description of D-H parametric quantities aI= the distance from ZIto Zi+1measured along TenI = the angle from ZIto Zi+1measured about TenI vitamin DI= the distance from Teni-1to XImeasured along ZI = the angle from Teni-1to XImeasured about ZI 3.2 Forward Kinematicss Forward kinematics is used to calculate the place and orientation of the tool frame from joint parametric quantities. The transmutation from frame { one } to border { i-1 } ( 3.1 ) The nexus transmutations is multiplied together to happen the individual transmutation that relates frame { N } to border { 0 } ( 3.2 ) 3.2.1 R-R operator forward kinematics Lengths of two links are L1 and L2. Fig5. R-R nexus frame assignmentLinkIaIvitamin DII1000120Liter102Table1. D-H parametric quantities of R-R operator Computational transmutation matrices of each nexus ( 3.3 ) ( 3.4 ) Therefore, ( 3.5 ) 3.2.2 R-R-R operator forward kinematics Fig6. R-R-R operator parametric quantitiesI1002-9000304-900Table2. D-H parametric quantities of R-R operator Transformation matrix for each nexus: ( 3.6 ) ( 3.7 ) ( 3.8 ) ( 3.9 ) ( 3.10 ) The transmutation matrixis gained by matrix generation of the single nexus matrices. At first,is gained by multiplyingand =( 3.11 ) =( 3.12 ) Finally = =( 3.13 ) Here, ( 3.14 ) ( 3.15 ) ( 3.16 ) The matrixestablishes the kinematics of R-R-R automaton operator ; it expresses the relationship between frame { 4 } and frame { 0 } about place and orientation. 3.3 Inverse Kinematicss Inverse kinematics is survey of happening the needed articulation angles to put the tool frame, { T } , comparative to the station frame, { S } . The reverse kinematics job is well harder than the forward kinematics job. Unlike forward kinematics which ever exist solution, solution for reverse kinematics may non be. The being of a solution defines the workspace of a operator. If the exist solution, there can even be an infinite figure of solutions, for instant â€Å"elbow up† and â€Å"elbow down† solutions. 3.3.1 Using for R-R Transformation from frame { 2 } to border { 0 } is mentioned by forward kinematics. In frame { 2 } , the co-ordinate of point P is [ L20 0 1 ] . In the frame { 0 } , the co-ordinate of point P is [ten Y0 1 ] . Therefore ( 3.17 ) ( 3.18 ) Square booth equations so add them: ( 3.19 ) ( 3.20 ) ( 3.21 ) ( 3.22 ) Writingten, Yin the signifier ( 3.23 ) ( 3.24 ) Where ( 3.25 ) ( 3.26 ) If ( 3.27 ) And ( 3.28 ) Then ( 3.29 ) ( 3.30 ) Equation ( 3.23 ) and ( 3.24 ) can be written as ( 3.31 ) ( 3.32 ) So ( 3.33 ) ( 3.34 ) Therefore, ( 3.35 ) Finally, equation for?1 ( 3.36 ) See equation ( 3.22 ) , minus or plus gestural corresponds positions of R-R operator. In this state of affairs, â€Å"elbow up† and â€Å"elbow down† are mentioned. Fig7. Two positions of R-R operator 3.3.1 Using for R-R-R From forward kinematics of R-R-R operator So, ( 3.37 ) From equation ( 3.6 ) , Inverting matrix ( 3.38 ) Substitute in ( 3.37 ) ( 3.39 ) So, ( 3.40 ) See about trigonometric permutations ( 3.41 ) ( 3.42 ) Where ( 3.43 ) ( 3.44 ) Using ( 3.41 ) and ( 3.42 ) , equation ( 3.40 ) can be written as ( 3.45 ) ( 3.46 ) ( 3.47 ) So ( 3.48 ) ( 3.49 ) Finally, the solution for: ( 3.50 ) See elements ( 1,4 ) and ( 3,4 ) of the matrix in the right-hand of equation ( 3.39 ) ( 3.51 ) ( 3.52 ) Square both ( 3.51 ) and ( 3.52 ) so add the resulting equations ( 3.53 ) ( 3.54 ) Or ( 3.55 ) Where ( 3.56 ) Equation ( 3.55 ) is of the same signifier as ( 3.40 ) so can be solved by the same method. Therefore, solution foris: ( 3.57 ) So find solution for, consider: ( 3.58 ) ( 3.59 ) Comparing both the ( 1,4 ) and ( 2,4 ) elements of matrix in right-hand of ( 3.59 ) ( 3.60 ) ( 3.61 ) These equations can be solved at the same time forand ( 3.62 ) ( 3.63 ) From equation ( 3.62 ) and ( 3.63 ) , ( 3.64 ) Because, therefore the concluding solution foris: ( 3.65 ) The subtraction or plus mark in ( 3.50 ) and ( 3.57 ) do four possible position of operator. Fig8. Fourth positions of R-R-R operator 3.4 Jacobians Relationship between the joint speed and the Cartesian speed is determined Jacobian WhereVis a speed vector in Cartesian and ? is the vector of joint angles, J ( ? ) is Jacobian. The Jacobian has figure of rows is peers the figure of grade of freedom in the Cartesian infinite, and figure of columns is equal the figure of joint. For case, a general automaton with six articulations, The Jacobian is matrix of 6Ãâ€"6,is 6Ãâ€"1, and Cartesian speedVis 6x1with 3Ãâ€"1 additive speed vector and 3Ãâ€"1 rotational speed vector. Example for R-R operator theoretical account The Jacobian can be written a 2Ãâ€"2 matrix which relates joint speed to end-effector speed. The location of point P ( end-effector ) is (ten, Y) so, from equation ( 3.17 ) and ( 3.18 ) ( 3.66 ) Derivative ( 3.66 ) ( 3.67 ) Or ( 3.68 ) So, the Jacobian in frame { 0 } is ( 3.69 ) Other progress of Jacobian is invertible. From ( 3.70 ) , joint rate can be calculated with a certain speed vector in Cartesian co-ordinate. Note that most operators will hold values of ? where the Jacobian turns into singular. ( 3.70 ) Chapter 4 Manipulator Dynamics In this chapter, equations of gesture for operator with torsions applied by actuators or external forces applied to the operator are mentioned. Chpater 5 Trajectory and Control Mentions [ 1 ] John J. Craig, 2005, Introduction to Robotics Mechanics and Control, 3rded. , Pearson Education, Inc. [ 2 ] Ahmed A. Shabana, 2005, Dynamics of Multibody Systems, 3rded. , Cambridge University Press. [ 3 ] Reza N. Jazar, 2010, Theory of Applied Robotics Kinematics, Dynamics, and Control, 2neodymiumed. , Springer. [ 4 ] RECURDYN, 2012, RecurDyn/ Solver Theoretical Manual, 8Thursdayed. , FunctionBay, Inc. [ 5 ] Frank L.Lewis, Darren M.Dawson, Chaouki T.Abdallah, 2004, Robot Manipulator Control Theory and Practice, 2neodymiumed. , Marcel Dekker, Inc. [ 6 ] Wikipedia

Thursday, January 9, 2020

Doing A Project More Effectively And Efficiently Using...

Topic: How to run a project more effectively and efficiently using lean management. Introduction: The main purpose of this research is to define better handling of ongoing project by complying with the principles of lean management to obtain maximum efficiency in production processing. During the project production lifecycle, many projects go through various challenges and to ensure that projects are handled in better ways, organisation perform different actions and approaches to retain project within budget and specified requirements. Today organizations face challenges in the form of intense international competition, rapid technology evolution, maturing customer expectations and quality demands. Therefore, to meet the customers expectation and finish project more efficiently, lean management approach can be more helpful in identifying bottlenecks and project causes at earlier stages of project development. This proposal will highlight issues and key solutions to the problems faced by projects these days by applying lean principles. Problem Statement Projects these days require extra monitoring to retain efficiency in project during its production, they are always tricky to organise but they get worse when project managers are under pressure to deliver a successful outcome within specified constraints. However, in recent years, there has been an increasing amount of literature consistently showing that projects often fail by going into frequent cost overruns, delays,Show MoreRelatedToyota s Production System : A Global Model For Efficient Auto Manufacturing Through The Use Of Operations Management843 Words   |  4 PagesToyota Motor Company has risen to become the global model for efficient auto manufacturing through the use of operations management. 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