computational methods in thermodynamics

... starts with Computational Methods , not All Computational Methods Perhaps it should be Some Computational Methods because it admittedly does not cover all computational methods being used in the ... Shoshani and Doron Rotem COMPUTATIONAL METHODS IN PLASMA PHYSICS Stephen Jardin Chapman & Hall/CRC Computational Science Series Computational Methods in Plasma Physics Stephen Jardin Boca Raton London ... spacelike region as shown in Figure 1.3 A given point can only be in uenced by a finite 16 Computational Methods in Plasma Physics FIGURE 1.4: Domain of dependence (l) and domain of in uence (r) region...

Ngày tải lên: 05/03/2014, 11:21

... Computational Methods in Chemical Engineering with Maple Ralph E White and Venkat R Subramanian Computational Methods in Chemical Engineering with Maple ABC Prof Dr ... matrix exponential method in solving linear and nonlinear boundary value problems, semi-infinite domains, the matrizant method, and has examples of heat transfer in a fin, cylindrical and spherical ... differentiation and integration were introduced In section 1.1.2, commands for plotting were introduced In section 1.1.3, linear and nonlinear equations were solved using Maple Linear equations were...

Ngày tải lên: 01/04/2014, 10:47

... Computers in Chemical Engineering, I~EC Research, AIChE Journal, Chemical Engineering Communications, and Chemical Engineering Science are good sources REFERENCE Franks, R G., Mathematical Modeling in ... engineer develop the following skills: A sound understanding of engineering fundamentals: The engineer must be familiar with the physical system and its mechanisms in order to be able to intelligently ... packages Since simulation relies upon a scientific rather than empirical approach to engineering, it has served to stimulate developments in interdisciplinary areas such as bioengineering and environmental...

Ngày tải lên: 01/04/2014, 10:48

... Gosling 35 Modelling Fabric-Reinforced Membranes with the Discrete Element Method D Ballhause, M König and B Kröplin 51 Introducing Cutting Patterns in Form Finding and Structural Analysis J Linhard, ... TEXTILE COMPOSITES AND INFLATABLE STRUCTURES II Computational Methods in Applied Sciences Volume Series Editor Eugenio Oñate International Center for Numerical Methods in Engineering (CIMNE) Technical ... plain weave [5] Figure shows the following: • • As it could be expected, the shielding effect increases with increasing yarn density for a certain frequency The shielding effect decreases with increasing...

Ngày tải lên: 07/08/2015, 15:14

... linear mapping of element faces and this resulted in inaccurate pressure distributions on the wing and sting surfaces All the computations have been run in parallel using 512 cores of the CINECA ... vol 11, Lecture Notes in Computational Science and Engineering, pp 77–88 Springer-Verlag, (2000) 10 F Brezzi, M Manzini, D Marini, P Pietra, and A Russo, Discontinuous Galerkin approximations for ... preconditioners that maintain strong coupling and often can be interpreted as increasing the propagation of errors out of the domain in the purely hyperbolic case As aerodynamic flows involve both elliptic...

Ngày tải lên: 01/04/2014, 10:40

... advantage of identifying different classes of antibodies in comparison to other agglutination methods Different results may be obtained depending on the nature of anti-globulin This situation has ... is needed to investigate blocking antibodies Dilutions need to be performed in very high ratios in order to remove occurrence of prezone (2) In recent years, the immuncapture agglutination test, ... has been introduced In this method, microwell is covered with Coombs antibodies against human origin Ig G, Ig M and Ig A antibodies This method is brucella agglutination test that occurs in microwell...

Ngày tải lên: 25/10/2012, 10:56

... holonic concepts into a manufacturing setting: Holon: An autonomous and cooperative building block of a manufacturing system for transforming, transporting, storing, and/or validating information ... estimated uncertainty that the entity contains, the minimally fuzzy sets contain also the minimally uncertain information.* Secondly, the “total ignorance” (or uncertain) information is pointed out ... floor is, in general, assigned with one Execution Mediator 3.3.5 Clustering and Cloning in MetaMorph II Clustering and cloning approaches for manufacturing scheduling were developed during the...

Ngày tải lên: 17/10/2013, 11:15

... following criteria to be of most importance: ©2001 CRC Press LLC • • • • • • • Minimizing lateness/tardiness Minimizing makespan Maximizing system/machine utilization Minimizing WIP (work in process) ... Part Dispatching Rules in FMSs This section explains a fuzzy real-time routing selection and an intelligent decision-making tool using fuzzy expert systems for machine loading in an FMS In the complex ... better option, the following goals are to be achieved: Minimizing number of jobs in queue Minimizing job allocation cost Minimizing lead time through the system Balancing machine utilization Not all...

Ngày tải lên: 19/10/2013, 18:15

... themselves In the traditional part–machine incidence matrix, assuming binary values, sequence information is ignored To include sequence information, a sequence-based incidence matrix is introduced, ... components for cellular manufacturing, keeping a concurrent engineering framework in mind It utilizes two middle layers, as shown in Figure 4.4 The inputs for the network include design features of ... form of zero indicates that a machine is not required by the part Figure 4.5a shows a matrix of machine requirements for nine parts, processed on nine machines Part–machine grouping involves a...

Ngày tải lên: 19/10/2013, 18:15

... An intelligent design retrieving system should aim toward a natural linking of the next process planning and manufacturing stages 7.2.4 Conducting Retrieval Tasks with a Certain Degree of Incomplete ... uncertainty in progressive die designs Many of these presented methods not integrate associative memory with manufacturing featurebased methods Others still use GT-based features as their indexing methods ... engineering designs can be adapted in the research to represent a design One major disadvantage of using image-based indexing is that the disappearance of hidden features and internal lines is inevitable...

Ngày tải lên: 23/10/2013, 16:15

... design objectives may include minimizing intercellular movements, minimizing set-up time, minimizing machine load variation or maximizing machine utilization, and minimizing the system’s costs ... constructing a group technology database of parts and their process routings, finding the most suitable routings among parts’ alternative routings, grouping machines into machine groups, and forming ... Algorithm for Finding the Optimum Process Routings for Parts The aim of a cellular manufacturing system design is minimizing the cost of the system It can be gained by dividing the system into independent...

Ngày tải lên: 23/10/2013, 16:15

... crossover of two strings Input: Output: string-1 and string-2 offspring-1 and offspring-2 Determine a cut point randomly from all the positions of a string Each string is divided into two parts, ... (D-OPT) is introduced, which is defined as an operation incurring no machining cost and having no effects in terms of machine, set-up, and tool changes By adding the dummy operation into the sets ... to be used in order to convert a piece-part from its original form to a final form that is specified on a detailed engineering drawing For machining, process planning includes determination of...

Ngày tải lên: 27/10/2013, 23:15

... applying parallel machines in industrial manufacturing, only a handful of papers are found on sequencing machining operations for parallel machines [3, 22] The combinatorial nature of sequencing ... capability of activating i cutting tools (I Ն i Ն 1) on distinct MUs, in parallel, either for the purpose of machining a single workpiece, or for the purpose of machining, in parallel, l workpieces ... and 470 constraints This clearly indicates that sequencing the parallel machining operations by using conventional integer programming method could be computationally expensive and inefficient [4]...

Ngày tải lên: 27/10/2013, 23:15

... of improving the product quality, increasing the effect events in production, increasing autonomity and intelligence in manufacturing lines, reducing the reaction time of manufacturing systems, ... equipped with such functionalities as storing information, reasoning, decision making, learning, and integration of these into the process In particular, the learning characteristic is a unique feature ... the network within the system Various manufacturing processes including machining, arc welding, semiconductor, and hydroforming processes are considered for networks applications Finally, perspectives...

Ngày tải lên: 06/11/2013, 09:15

... ensuring the best possible prediction performance The trade-off of using these resampling methods is the incurred computational expense of developing multiple validation networks in order to infer ... or slip) Casting the slip in a plaster mold for a specified duration Removing the mold Air drying the cast piece Spray gazing the dried piece Firing the gazed piece in a kiln Inspecting the finished ... Machining Application Abrasive flow machining (AFM) was originally developed for deburring aircraft valve bodies It has many applications in the aerospace, automotive, electronic, and die-making industries...

Ngày tải lên: 06/11/2013, 09:15

... Resource-Constrained Project Scheduling Problem Parallel Machine Scheduling Problem Job-Shop Scheduling Problem Multistage Process Planning Part Loading Scheduling Problem Introduction Production scheduling ... recent interest in using genetic algorithms to address the problem In the following sections, we explain how to solve them with genetic algorithms, including resource-constrained project scheduling, ... parallel machine scheduling, job-shop scheduling, multistage process planning, and part loading scheduling problem 10.2 Resource-Constrained Project Scheduling Problem The problem of scheduling activities...

Ngày tải lên: 06/11/2013, 09:15

... approximations, during which the training data set is split into certain training data set and possible training data set Subsequently, these training sets are forwarded to the GA-based search engine for ... training data set correctly For each certain rule extracted from the certain training data set, RClass* uses a so-called completeness index to indicate the number of observations in the original ... same rule in the original training data In other words, the completeness index represents the usefulness or the effectiveness of a certain rule The reliability and completeness indices are included...

Ngày tải lên: 13/12/2013, 01:15

... moving-window sample method is chosen, except that ARL values of the designs using the moving-window sample method are in general smaller than those using the independent method, considering ... with larger values meaning larger shifts Note that both neural networks were trained off-line using simulations By incorporating the trained weight matrices, one can start using the proposed method ... the “true” individual observation input method in that it uses the most recent and four immediately passed observations The reason for maintaining a few observations in a sample point is due...

Ngày tải lên: 13/12/2013, 01:15

... This involves dividing the data set into S mutually exclusive subsets, using S – subsets for training the network (as discussed in Section 17.2.1.2) and the remaining subset for testing, repeating ... differing amplitudes and ranges of the outputs on the training process) TABLE 17.3 MLP Neural Network Training Scheme Training algorithm Starting learning rate (η) Learning adaptation rate Minimum ... and α as shown in Equation 17.12) are not large enough to move into a different basin, the quality controller converges to the local minimum in the basin holding the starting point However, it...

Ngày tải lên: 13/12/2013, 01:15

... manually inspecting machined surfaces at fixed intervals A surface profilometer containing a contact stylus is used in the manual inspection procedure This procedure is both time-consuming and labor-intensive ... laboratories in the state of Iowa (including Winnebago Co in Forest City; Delavan Inc in Des Moines; Sauer-Sundstrand Inc in Ames), point to the feasibility of in- process surface roughness recognition ... before or during machining The primary objective was to train the fuzzy system by generating fuzzy rules from input–output pairs, and combining these generated and linguistic rules into a common...

Ngày tải lên: 13/12/2013, 01:15