design analysis of scalers and curets

... constructs of objectoriented analysis and design methods This is achieved by describing a spatio-temporal data model designed to address the complex and subtle semantics of space and time of historical ... PhD theses and the like, and special collections of thematic papers The need We believe that there is a need, from the point of view of both readers (researchers and practitioners) and authors, ... sites, or publication of programs and of data No form of dissemination is discounted, and prospective authors are invited to suggest whatever primary form of publication and support material they...

Ngày tải lên: 08/08/2014, 00:23

... mostly consolidated in the work of Hägerstrand and his students and collaborators Lenntorp, Mårtensson and Carlstein Pred (1977) provides an overview of the main uses of Time Geography in several ... part of a process of change caused by action and reaction as well as the synthesis of both (e.g the process of energy propagation and ozone hole formation) An episode is defined as the length of ... co-location of events in time (Figure 2.10) GIS can be used to keep the record of ‘co-location of events’ of space-time paths of a number of entities The outcome is a web formed by the interrelations of...

Ngày tải lên: 08/08/2014, 00:23

... Creation of a new object, creation of a new object from an existing object, and change in state of an existing object characterise OBJECT-ORIENTED ANALYSIS AND DESIGN 37 the dynamic nature of objects ... number of software products for CASE tools are under development based on the composition of graphical symbols and notations depicting the semantics and features from the object-oriented analysis and ... This provides a flexible and legitimate object-oriented model of an application in which analysis and design techniques have been integrated for each process, model and view of the object-oriented...

Ngày tải lên: 08/08/2014, 00:23

... synchronisation of events and states < Object-oriented analysis and design is required for the development and implementation of the spatio-temporal data model within a GIS The strengths of the STDM and ... the evolution of an entity lifespan Exploring the temporality and dynamic interactions of classes of events and states may provide an in-depth understanding of our perceptions of the knowledge ... description of the world over some period of time, and the set of rules governing change, predict the world at some future time < Explanation Given a description of the world over some period of time and...

Ngày tải lên: 08/08/2014, 00:23

... Defanti and Brown, 1987) so users need to have a natural acuity for recognising and interpreting visual patterns (Fedra, 1992; Buttenfield, 1993), and an intuitive understanding of large amounts of ... understanding of the STDM and the information stored in the database 6.7 CONCLUSIONS This chapter has illustrated some examples of how space-time paths can be created by a user The states and events ... state of an instance in the GroundFeature class It shows the properties of the GroundFeature class: point, line, area and type The insert operation is invoked when the user assigns the values of...

Ngày tải lên: 08/08/2014, 00:23

... priori unknown They are of fundamental importance to the analysis EMERGING TECHNOLOGIES 99 and design of spatio-temporal data models They provide a computable representation of how the spatio-temporal ... understanding the iterative nature of human interaction with visual displays of spatio-temporal data (Dykes, 1997; MacEachren and Taylor, 1998) and (b) geographic visualisation methods designed ... from academia and industry that has as its main objective the standardisation of system specification, modelling and implementation of interoperable GIS The OGIS model defines spatial and temporal...

Ngày tải lên: 08/08/2014, 00:23

... Development of a system for the management and supply of data on administrative areas and public boundaries, Updating of Digital Maps and Topographic Databases, Proceedings of the third meeting of CERCO ... 3–7 OLANDER, L and CARLSTEIN, T., 1978, The study of activities in the quaternary sector, in CARLSTEIN, T., PARKES, D and THRIFT, N (eds) Timing Space and Spacing Time, Vol 2, Human Activity and ... representation of temporal dynamics in geographic information systems Annals of the Association of American Geographers, 84(3), 441–61 PEUQUET, D and WENTZ, E., 1994, An approach for time-based analysis of...

Ngày tải lên: 08/08/2014, 00:23

... synthesis and general linkage design by successive analysis The fast computation of these programs allows one to analyze the performance of many trial mechanism designs in a short time and promotes ... Look and you will see many other such examples of assemblies of planar linkages into 3-D configurations So, the 2-D techniques of synthesis and analysis presented here will prove to be of practical ... and is defined as the angle between the output link and the coupler * It is usually taken as the absolute value of the acute angle of the pair of angles at the intersection of the two links and...

Ngày tải lên: 08/08/2014, 12:23

... Multi-CircuitMechanismsby Wayof Example of the Double Butterfly Linkage." Journal of Mechanical Design, 118(3), p 390 Chase, T R., and J A Mirth (1993) "Circuits and Branches of Single-Degree -of- FreedomPlanar ... originated by Sandor[1] and further developed by his students, Erdman,[2] Kaufman,[3] and Loerch et aI.l4,S] 5.1 TYPESOF KINEMATIC SYNTHESIS Erdman and Sandor[6] define three types of kinematic ... only the lengths of those links but also the locations of the fixed pivots Oz and 04 in the plane and the lengths oflinks and Link is defined as vector G in Figure 5-4 (p 202) and can be found...

Ngày tải lên: 08/08/2014, 13:20

... centrodes of crank-rockers and double- or triple-rockers will be open curves with asymptotes Centrodes of double-crank linkages will be closed curves Program FOURBARwill calculate and draw the fixed and ... example link is the driver, and 8z and OOz are given for the "freeze frame" position shown We wish to solve for 004, the angular velocity of link 4, and also for the velocity of slip at the joint labeled ... axis of slip is shown to be tangent to the slider motion and is the line along which all sliding occurs between links and The axis of transmission is defined to be perpendicular to the axis of...

Ngày tải lên: 08/08/2014, 13:20

... speed of this type of automated production machine is typically limited by the dynamic forces which are due to accelerations and decelerations of the mass of the moving parts of the machine and ... application, some of which have already been mentioned, such as function continuity, peak values of velocity and acceleration, and smoothness of jerk There are many other trade-offs still to be ... positions of cam and follower This seems to be giving us something for nothing, which can't be true As the contact point moves left and right, the point of application of the force between cam and...

Ngày tải lên: 08/08/2014, 13:20

... sizes, and materials of these parts, redesign them, and repeat the force, stress, and deflection analyses Design is, unavoidably, an iterative process The topic of stress and deflection analysis ... understanding of both material properties and stress and deflection analysis to properly shape and size parts for minimum mass while maximizing the strength and stiffness needed to withstand the ... center and front differentials, helical or spur gear arrangements are often used as in Figure 9-49b and c When designing machinery, we must first a complete kinematic analysis of our design, ...

Ngày tải lên: 08/08/2014, 13:20

... a tripod stand of 5-foot height Design it, and the stand, for stability against tipover due to the shaking forces and shaking torques which should also be minimized in the design of your linkage ... practice This device must fire a sequence of standard tennis balls from one side of a standard tennis court over the net such that they land and bounce within each of the three court areas defined by ... lines The order and frequency of a ball's landing in anyone of the three court areas must be random The device should operate automatically and unattended except for the refill of balls It should...

Ngày tải lên: 08/08/2014, 13:20

... a tripod stand of 5-foot height Design it, and the stand, for stability against tipover due to the shaking forces and shaking torques which should also be minimized in the design of your linkage ... practice This device must fire a sequence of standard tennis balls from one side of a standard tennis court over the net such that they land and bounce within each of the three court areas defined by ... lines The order and frequency of a ball's landing in anyone of the three court areas must be random The device should operate automatically and unattended except for the refill of balls It should...

Ngày tải lên: 08/08/2014, 13:20

... kinematic and mechanical dynamics aspects It is not our intention to make an "engine designer" of the student so much as to apply dynamic principles to a realistic design problem of general interest and ... timing of events in the cycle and is a necessary and useful aid in defining our crankshaft design However, it is not necessary to go to the trouble of drawing the correct sinusoidal shapes of the ... discussed the design of the slider-crank mechanism as used in the single-cylinder internal combustion engine and piston pumps We will now extend the design to multicylinder configurations Some of the...

Ngày tải lên: 08/08/2014, 13:20

... is a linkage design and analysis program intended for use by students, engineers and other professionals who are knowledgeable in or are learning the art and science of linkage design It is assumed ... combustion (Ie) engine design and analysis program intended for use by students, engineers, and other professionals who are knowledgeable in the art and science of engineering design It is assumed ... environment to explore failure of your designs "on paper" and in the process come to a more thorough and complete understanding of the subject matter The author and publisher are not responsible...

Ngày tải lên: 08/08/2014, 13:20

... chuyển tiếp dị thể n-Si/p-CIS 14 CHƯƠNG CHƯƠNG TRÌNH MÔ PHỎNG MỘTCHIỀU AMPS – 1D (Analysis of Microelectronic and Photonic Structures) Chương trình mô chiều AMPS – 1D chương trình đa để khảo sát...

Ngày tải lên: 18/03/2013, 13:40