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Description: FTKernelAPI 是一套完全免费(对于非商业性程序而言)的实现了BitTorrent 网络协议的内核库。在兼容官方BitTorrent协议的同时针对国内的网络带宽状况进行了优化，增加了一个侦听端口支持多个任务同时运行, 文件选择下载，断点续传, 自动配置支持UPnP协议的路由器, 对于全局或者单个任务进行速度限制等功能。FTKernelAPI BT协议内核库以及示例源码 BitZam 的出现，使BT软件开发不再高深。只要你愿意，不必关心网络编程，BT协议，只需简单的调用FTKernelAPI的接口在3天的时间里就能开发出满足你自己需要的BT下载软件。假如你正在想自己开发一个BT-FTKernelAPI is a free (for non-commercial procedures), the realization of the BitTorrent network protocol kernel libraries. BitTorrent compatible with the official agreement to focus on the domestic situation of the network bandwidth is optimized for an increase of one interception ports to support multiple tasks running simultaneously, the option to download documents, HTTP, automatic configuration support the UPnP protocol routers, to the whole picture or a single mandate features such as speed limits . FTKernelAPI BT agreement Kernel Library and the source BitZam example, the emergence of BT no longer advanced software development. As long as you are willing to, not concerned about network programming, BT agreement, you can simply call FTKernelAPI interface in three days time will be de
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Author: 海天 |
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Description: FTKernelAPI 是一套完全免费(对于非商业性程序而言)的实现了BitTorrent 网络协议的内核库。在兼容官方BitTorrent协议的同时针对国内的网络带宽状况进行了优化，增加了一个侦听端口支持多个任务同时运行, 文件选择下载，断点续传, 自动配置支持UPnP协议的路由器, 对于全局或者单个任务进行速度限制等功能。FTKernelAPI BT协议内核库以及示例源码 BitZam 的出现，使BT软件开发不再高深。只要你愿意，不必关心网络编程，BT协议，只需简单的调用FTKernelAPI的接口在3天的时间里就能开发出满足你自己需要的BT下载软件。假如你正在想自己开发一个BT下载软件或者你正在为你的公司的程序寻找一种省钱省时的下载解决方案, FTKernelAPI将是你的理想选择-FTKernelAPI is a free (for non-commercial procedures), the realization of the BitTorrent network protocol kernel libraries. BitTorrent compatible with the official agreement to focus on the domestic situation of the network bandwidth is optimized for an increase of one interception ports to support multiple tasks running simultaneously, the option to download documents, HTTP, automatic configuration support the UPnP protocol routers, to the whole picture or a single mandate features such as speed limits . FTKernelAPI BT agreement Kernel Library and the source BitZam example, the emergence of BT no longer advanced software development. As long as you are willing to, not concerned about network programming, BT agreement, you can simply call FTKernelAPI interface in three days time will be de
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Author: 阿杜 |
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Description: 模拟内存分配的c语言实现
六、 实验目的
了解用户程序分配内存以及回收所用内存的过程，加深对操作系统存储管理机制的理解。
七、 实验内容
采用首次适应法、最佳适应法或最差适应法，编写一内存分配和回收模拟程序。
（提示：“内存空闲区”数组的设置原理类似于实验一。动态地随机产生新的“内存分配”或“内存回收”请求，再按照你选定的分配算法修改这个数组。由于这个实验的重点在于内存分配，所以不考虑与某内存区相关的进程情况。）
-simulation memory allocation in C Language 6, the experiment was to understand user program memory allocation and recovery of memory used by the process, enhance the operating system memory management mechanisms and understanding. 7, the first experiment using content to adapt, adapt best or the worst adaptation law, the preparation of a memory allocation and recovery simulation program. (Tip : "memory free zone" set up an array of principles similar to the experimental one. Dynamic random to create a new "memory allocation" or "memory recovery" request, then you have chosen in accordance with the allocation algorithm to change the array. As the focus of this experiment is memory allocation, there is no test taking into account with a certain memory areas rela
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Author: 丘方 |
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Description: FTKernelAPI是一套完全免费(对于非商业性程序而言)的实现了BitTorrent 网络协议的内核库。在兼容官方BitTorrent协议的同时针对国内的网络带宽状况进行了优化，增加了一个侦听端口支持多个任务同时运行, 文件选择下载，断点续传, 自动配置支持UPnP协议的路由器, 对于全局或者单个任务进行速度限制等功能。FTKernelAPI BT协议内核库以及示例码 BitZam 的出现，使BT软件开发不再高深。只要你愿意，不必关心网络编程，BT协议，只需简单的调用FTKernelAPI的接口在3天的时间里就能开发出满足你自己需要的BT下载软件。
-FTKernelAPI is a free (for non-commercial procedures), the realization of the Bi tTorrent network protocol kernel libraries. BitTorrent compatible with the official agreement to focus on the domestic situation of network bandwidth optimization, an increase of one interception ports to support multiple tasks running simultaneously, the option to download documents, HTTP, automatic configuration support the UPnP protocol routers, to the whole picture or a single mandate features such as speed limits. FTKernelAPI BT agreement kernel libraries, and sample code BitZam the emergence so BT no longer advanced software development. As long as you are willing to, not concerned about network programming, BT agreement you can simply call FTKernelAPI interface in three days time will be developed to me
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Author: mm110044 |
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Description: 這是一款好用的 streaming 軟體，重點還是免費的-This is good for streaming software, the focus is still free
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Author: plato wu |
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Description: 一般常用的英语背诵软件都是以单词为主，不能很好的理解英语句子的结构，而\"英语句子通\"能帮你实现整句的背诵，而且有整句的即时语音，中国人学英语往往注重背单词，而忽略了句子，往往达不到说一口流利英语的效, \"英语句子通\"的出现弥补了这个空白。 附了NewConcept第一册的部分句子(mdb数据库形式，不加密),可以自己添加。 软件要求：window系列平台,微软语音引擎（如装了金山词霸就可以了） 需vb6运行库，ado引擎。 注：附全部vb源代码！！！ -commonly used software to memorize English words are based not well understood English sentence structure, "English sentence -" can help you achieve recitation of sentence, but the sentence instant voice, the Chinese people tend to focus on learning English words back, while ignoring the sentence, often fail Fluent in English, said the effect, "English sentence links" can make up this gap. A list of NewConcept the first part of the sentence (mdb database form and encryption), it will add its own. Software requirements : window Series platform, Microsoft Speech engine (such as installing a free email can be a) need VB6 runtime, ado engine. Note : A full vb source code! ! !
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Author: 咖啡茶 |
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Description: ************************************************************************ * * * * * THIS IS THE H Y P L A S 2.0 README FILE * * ----------------- * * * * HYPLAS is a finite element program for implicit small and large * * strain analisys of hyperelastic and elasto-plastic two-dimensional * * and axisymmetric solids * * * * HYPLAS v2.0 is the companion software to the textbook: * * EA de Souza Neto, D Peric & DRJ Owen. Computational Methods for * * Plasticity: Theory and Applications. Wiley, Chichester, 2008. * * (www.wiley.com/go/desouzaneto) * * * * Copyright (c) 1998-2008 EA de Souza Neto, D Peric, D.R.J. Owen * *----------------------------------------------------------------------* * File last updated: 18 October 2008 * * * * This file belongs in the directory ../HYPLAS_v2.0 * ************************************************************************ * * * I M P O R T A N T * * * * READ SECTIONS 0 TO 3 OF THIS FILE CAREFULLY BEFORE ATTEMPTING * * TO COMPILE AND RUN THE PROGRAM HYPLAS ON YOUR COMPUTER !! * * * * THE AUTHORS DO NOT GUARANTEE THAT ANY SUGGESTIONS/INSTRUCTIONS * * GIVEN IN THIS README FILE WILL WORK ON ANY PARTICULAR OPERATING * * SYSTEM. IF YOU DECIDE TO FOLLOW ANY SUGGESTIONS/INSTRUCTIONS * * GIVEN HERE YOU MUST DO SO AT YOUR OWN RISK. * * * * * * BUG REPORTS: Please send bug reports to * * * * hyplas_v2.0@live.co.uk * * * * Messages sent to the authors' personal email addresses * * will NOT be answered. * ************************************************************************ This file contains the following sections: 0. Copyright statement and disclaimer 0.(a) Copyright statement 0.(b) Disclaimer 0.(c) Conditions of use 1. Introduction 1.(a) Note on portability 2. Compiling and running HYPLAS 2.(a) Memory requirements 2.(b) Testing a newly compiled executable 3. The HYPLAS directory tree 4. Cross-referencing between the source code and the textbook 5. HYPLAS error messaging 6. Further remarks on HYPLAS ************************************************************************ 0. COPYRIGHT STATEMENT AND DISCLAIMER ================================== 0.(a) Copyright statement ------------------- You may only use this program for your own private purposes. You are not allowed, in any circumstances, to distribute this program (including its source code, executable and any other files related to it, either in their original version or any modifications introduced by you, the authors or any other party) in whole or in part, either freely or otherwise, in any medium, without the prior written consent of the copyright holders. 0.(b) Disclaimer ---------- This program (including its source code, executable and any other files related to it) is provided "as is" without warranty of any kind, either expressed or implied, including, but not limited to, any implied warranties of fitness for purpose. In particular, THIS PROGRAM IS BY NO MEANS GUARANTEED TO BE FREE FROM ERRORS. This program (or any modification incorporated to it by you, the authors or any other party) will run entirely at your risk. The results produced by this program are in no way guaranteed to be fit for any purpose. Under no circumstances will the authors/copyright holders be liable to anyone for damages, including any general, special, incidental or consequential damages arising from the use or inability to use the program (including, but not limited to, loss or corruption of data, failure of the program to operate in any particular way as well as damages arising from the use of any results produced by the program for any purpose). 0.(c) Conditions of use ----------------- You may only use this program if you fully understand and agree with the terms of the above disclaimer. You must not use this program if you do not agree with or do not understand (fully or in part) these conditions of use. 1. INTRODUCTION ============ HYPLAS is a finite element code for small and large strain analysis of hyperelastic and elasto-plastic solids. Most procedures implemented in HYPLAS are described in detail in its companion textbook: EA de Souza Neto, D Peric & DRJ Owen. Computational Methods for Plasticity: Theory and Applications. Wiley, Chichester, 2008 (www.wiley.com/go/desouzaneto). 1.(a) Note on Portability ------------------- HYPLAS has been written in standard ANSI FORTRAN 77. Currently, the only known (and deliberate) exceptions to the FORTRAN 77 ANSI standard are the instructions: INCLUDE '' used in many routines to include the HYPLAS database files (common blocks and global variables), and; CALL GETENV('HYPLASHOME',HYPLASHOME) used in subroutine "ERRPRT" (file ../HYPLAS_v2.0/src/GENERAL/errprt.f). This instruction inquires the name of the system environment variable HYPLASHOME and writes it on the character string HYPLASHOME. This instruction is NOT part of the ANSI FORTRAN 77 standard, but seems to work in most currently available FORTRAN 77 compilers. 2. COMPILING AND RUNNING H Y P L A S ================================== The HYPLAS source code is stored in directory ../HYPLAS_v2.0/src/ (../HYPLAS_v2.0/ being the current directory) and all its subdirectories. To generate an executable file, you just need to compile the FORTRAN source files: ../HYPLAS_v2.0/src/hyplas.f and ../HYPLAS_v2.0/src/*/*.f together. We recommend that the executable HYPLAS be stored in the directory ../HYPLAS_v2.0/bin to which the environment variable HYPLASHOME should be set (see below how to set a system environmental variable). WINDOWS (R) systems ------------------- On Microsoft Windows(R) systems, HYPLAS has been successfully compiled using Intel Visual Fortran Compiler(R) integrated with Microsoft Visual Studio(R). Here you only need to create a project that contains all Fortran source files mentioned above as well as the include files ..\HYPLAS_v2.0\src\*.INC On a Windows XP system, the system environment variable HYPLASHOME can be set as follows: 1. Open a File Manager 2. Right-click on the "My Computer" icon 3. Select "Properties" on the drop-down menu 4. A new window named "System Properties" will pop-up. Here select the "Advanced" tab. 5. On the "Advanced" tab, click the "Environment Variables" button. 6. A new window titled "Environment Variables" will pop-up. Here click the button "New" in the "System Variables" section of the window. 7. A new window will pop-up titled "New System Variable". Here you should fill the fields "Variable name" and "Variable Value", respectively, with HYPLASHOME and the path name (in full) of the directory ..\HYPLAS_v2.0\bin. 8. Press "OK" on the relevant pop-up windows. 9. The next time the computer is REBOOTED, this variable will be set to the correct path and HYPLAS should be able to find the error messages file ERROR.RUN if required. UNIX/LINUX systems ------------------ In a UNIX/LINUX operating system using a C-shell, for instance, the HYPLASHOME environment variable should be set with the command: setenv HYPLASHOME where here denotes the full path to the directory ../HYPLAS_v2.0/bin. To compile HYPLAS (from directory ../HYPLAS_v2.0/src) with a FORTRAN 77 compiler such as g77, you can use the command: g77 -o ../bin/hyplas hyplas.f */*.f Note that the executable file "hyplas" will be stored in the directory ../HYPLAS_2.0/bin (i.e. the directory set in the HYPLASHOME environment variable). Alternatively, you may use the Makefile provided (with suitable modifications, if needed) to create the HYPLAS executable. IMPORTANT: Before generating a HYPLAS executable, read Sections 2.(a) and 2.(b) below. 2.(a) Memory Requirements ------------------- HYPLAS memory requirements depend on the array dimensioning parameters set in files: ../HYPLAS_v2.0/src/ ELEMENTS.INC GLBDBASE.INC MATERIAL.INC MAXDIM.INC Files ELEMENTS.INC, GLBDBASE.INC and MATERIAL.INC contain parameters which are associated with the currently implemented finite elements and materials. DO NOT MODIFY THEM ! unless you are absolutely sure of what you are doing (only developers coding new elements or new material models/analysis types may need to modify them by changing the existing dimensioning parameters and/or including new parameters). The ONLY dimensioning file that can be safely modified by the average user is the file MAXDIM.INC This file contains the array dimensioning parameters related to the maximum permissible dimension of problems to be analysed by HYPLAS. These parameters include the maximum number of nodes, elements, element groups, etc. If necessary, CHANGE THESE PARAMETERS TO SUIT YOUR PROBLEM SIZE/MEMORY REQUIREMENTS before compiling HYPLAS. 2.(b) Testing a newly compiled executable ----------------------------------- After you have successfully compiled the HYPLAS source code and created an executable file, the next step is to run some tests to verify that HYPLAS is working well. To do this, proceed as follows: The directory ../HYPLAS_v2.0/book_examples/data_files contains a series of data files named .dat of benchmarked examples described in the companion textbook. The corresponding (benchmarked) result files are in the directory ../HYPLAS_v2.0/book_examples/result_files This directory contains a series of result files named .res generated with the current version of HYPLAS on a tested platform. All these files have been named such that their names start with the textbook section number where the corresponding example is described. For instance, files 14_9_2_tresca.dat and 14_9_2_tresca.res refer to a problem described in section 14.9.2 of the textbook, and so on. To check that HYPLAS is working well on your platform, after compiling HYPLAS, run the program HYPLAS for the examples of files .dat and compare the newly generated results .res with their benchmarked counterparts (of the same filename) in the result_files directory. To run an example, execute HYPLAS and use the keyboard to enter the name of the corresponding data file in full (including the extension .dat). To compare the benchmarked .res files against their newly generated you may proceed as follows: 1. On MICROSOFT WINDOWS systems - Here we have successfully used the software "ExamDiff" (the task was made particularly easy by selecting "View" and then the "Show Differences Only" option - this refers to version 1.8 of this software). 2. On UNIX/LINUX systems - Here we use the "diff" command from a shell window (and set the option to ignore blank spaces). A shell script may be used to perform this task automatically (including running HYPLAS and checking for result file differences) for all benchmarked examples provided. IMPORTANT: THE ONLY ACCEPTABLE DIFFERENCES BETWEEN A THE NEWLY GENERATED RESULT FILES AND THEIR BENCHMARKED COUNTERPARTS ARE THE DIMENSIONING PARAMETERS (FROM FILE MAXDIM.INC) USED TO COMPILE THE NEW EXECUTABLE (THESE PARAMETERS ARE PRINTED RIGHT AT THE BEGINNING OF THE RESULT FILES) AND NUMERICAL DIFFERENCES IN RESULTS DUE TO NUMERICAL "ROUNDING-OFF" (THESE ARE VERY SMALL DIFFERENCES THAT DEPEND ON THE PRECISION OF ARITHMETIC OPERATIONS IN THE PLATFORM USED). ALSO NOTE THAT THE EXAMPLES OF THE COMPANION TEXTBOOK DO NOT COVER ALL FEATURES OF HYPLAS. HENCE THIS TEST DOES NOT GUARANTEE THAT EVERYTHING IS WORKING PROPERLY. 3. THE H Y P L A S DIRECTORY TREE ================================ 3.(a) Summary ------- ../ HYPLAS_v2.0/ bin/ book_examples/ data_files/ result_files/ man/ html/ src/ CRYSTAL/ DAMAGE/ DAMAGED_ELASTIC/ DRUCKER_PRAGER/ ELASTIC/ ELEMENTS/ GENERAL/ MATERIALS/ MATHS/ MOHR_COULOMB/ OGDEN/ TRESCA/ VON_MISES/ VON_MISES_MIXED/ 3.(b) Description ----------- The HYPLAS program directory tree is organised as follows: ../HYPLAS_v2.0/ (this directory) This is the HYPLAS root directory, where the HYPLAS directory tree starts. ../HYPLAS_v2.0/bin/ This directory contains the file ERROR.RUN where most HYPLAS error/warning messages are. IMPORTANT: the environment variable HYPLASHOME should be set to this directory. Otherwise, HYPLAS will not find its error/warning messages when required. We also recommend that the EXECUTABLE of HYPLAS be stored in this directory. ../HYPLAS_v2.0/book_examples/ This directory has the following subdirectories: ../HYPLAS_v2.0/book_examples/data_files ../HYPLAS_v2.0/book_examples/result_files Refer to Section 2.(b) above for further details. ../HYPLAS_v2.0/man/ This is the HYPLAS documentation/manuals directory. It contains the following files: input_man.txt - A concise input data manual for HYPLAS in ASCII format; hyplas_calltree.txt - Contains a flowgraph (shows the call tree) of HYPLAS in ASCII-format. Note: calls to function subprograms are not included in this flowgraph; and the subdirectory: ../HYPLAS_v2.0/man/html This directory contains the hypertext (HTML) format Fortran source code and of manual pages of the entire HYPLAS program. Manual pages with descriptions of each function/subprogram including their argument list are linked to their corresponding HTML-format source code. This allows the user the navigate through the HYPLAS source code using a web browser. To start at the main program, use your web browser to open the file hyplas.html. This facility should be helpful to those trying to understand the flow of program HYPLAS. ../HYPLAS_v2.0/src/ This directory (and its subdirectories) contains the Fortran source code of HYPLAS. The files containing the sources are named following the standard practice: .f where is the name of the FORTRAN procedure (subroutine, function subprogram, etc.) whose source code is in file .f. The source code of the HYPLAS main program is in file hyplas.f and the HYPLAS database (COMMON blocks, array dimensioning parameters and other global parameters) is coded in the "include files" ELEMENTS.INC GLDBASE.INC MATERIAL.INC MAXDIM.INC in this directory. In addition, this directory contains a file named "Makefile" (UNIX-LINUX Release only) which may be used for compiling and linking HYPLAS in UNIX/LINUX systems. The subdirectories of ../HYPLAS_v2.0/src are as follows: ../HYPLAS_v2.0/src/CRYSTAL Contains the source code of all procedures related to the finite strain single crystal plasticity model implemented in HYPLAS. ../HYPLAS_v2.0/src/DAMAGE Source files of the procedures related to the Lemaitre ductile damage model implementation. ../HYPLAS_v2.0/src/DAMAGED_ELASTIC Source files of the procedures related to the damaged elasticity model with crack closure effect. ../HYPLAS_v2.0/src/DRUCKER_PRAGER Source files of the procedures related to the implemented Drucker-Prager plasticity model. ../HYPLAS_v2.0/src/ELASTIC Source files of the procedures related to the linear elasticity model (Hencky model under large strains) implemented. ../HYPLAS_v2.0/src/ELEMENTS Source files of the element interfaces and element-related procedures. ../HYPLAS_v2.0/src/GENERAL Source files of general procedures. ../HYPLAS_v2.0/src/MATERIALS Source files of the material interfaces. ../HYPLAS_v2.0/src/MATHS Source files of the mathematical procedures. ../HYPLAS_v2.0/src/MOHR_COULOMB Source files of the procedures related to the implemented Mohr-Coulomb plasticity model. ../HYPLAS_v2.0/src/OGDEN Source files of the procedures related to the implemented Ogden hyperelasticity model. ../HYPLAS_v2.0/src/TRESCA Source files of the procedures related to the implemented Tresca plasticity model. ../HYPLAS_v2.0/src/VON_MISES Source files of the procedures related to the implemented von Mises plasticity model with isotropic hardening. ../HYPLAS_v2.0/src/VON_MISES_MIXED Source files of the procedures related to the implemented von Mises plasticity model with mixed isotropic/kinematic hardening. 4. CROSS-REFERENCING BETWEEN THE SOURCE CODE AND THE TEXTBOOK ========================================================== Many references are made in the textbook to various subprograms of HYPLAS. These are usually made when a particular procedure described in the text is implemented in the program. The reader should refer to the textbook index. Also, a substantial number of comment lines have been added to the source code of HYPLAS with reference to sections, figures, boxes, etc of the textbook related to the part of the code in question. Such references are usually displayed after the word "REFERENCE:" (in capitals) on commented lines. Searching for this word will take you to the line of code where the particular routine has a reference to the textbook. NOTE: Occasional references to other textbooks/journal papers are also made following the word "REFERENCE:" on commented lines. 5. HYPLAS ERROR MESSAGING ====================== Most error/warning messages issued by HYPLAS are in the ASCII-format file ERROR.RUN (kept in the HYPLASHOME directory - ../HYPLAS_v2.0/bin). All such error/warning messages have an identification code (e.g. ED0015) which is printed both to the standard output (this is usually the computer screen) and to the relevant results file. If you wish to find where in the source code a particular message is being issued, then perform a search for the corresponding message identification code in the entire source code of HYPLAS. 6. FURTHER REMARKS ON HYPLAS ========================= 6.(a) Program efficiency THIS SECTION IS OF INTEREST ONLY TO THOSE WANTING TO MAKE HYPLAS RUN FASTER. It is particularly stressed in the textbook that this program has not been designed having efficiency in mind (refer to Section 5.1.2 of the textbook). Its structure has been designed mainly to illustrate in a relatively clear manner the computer implementation of the techniques and algorithms described in the text, with a particular view to the implementation of solid constitutive models and finite elements. For those who are especially interested in the speed of the code, there are a few tips that could help in this direction. Unfortunately, these involve modifications to the source code which is probably most appropriate to readers with a good level of experience in finite element programming. To those with this particular interest, we can suggest the following: (i) The use of faster linear solvers This is probably the change that would result in a greater gain in efficiency. The Frontal Method adopted in subroutine FRONT (file ../HYPLAS_v2.0/src/GENERAL/front.f) has been designed originally to save memory (back in the days when computer memory was severely limited). There are currently a vast number of methodologies which focus on speeding up the linear solution, in addition to reducing memory storage requirements (which is a particularly important issue in the solution of large scale problems). Some of these are extensions/refinements of the original Frontal solver. We remark that a number of such procedures (with their respective source codes) are available (conditions may apply) from the LAPACK (Linear Algebra PACKage - http://www.netlib.org/lapack) repository or from the HSL Library (http://www.cse.cse.scitech.ac.uk/nag/hsl). For the reader interested in gaining speed, we would recommend the replacement of the existing solver of FRONT by a faster one. We remark though that this is a substantial programming task. Another aspect here is the fact that computing times in FRONT are directly linked to the frontwidth of the system which, in the present version of HYPLAS is fixed and depends, for a given mesh, on how the degrees of freedom are numbered (node numbering). The incorporation of a frontwidth optimiser (which re-numbers the degrees of freedom in order to minimise the frontwidth) in FRONT could produce some good savings in computing times. Such savings become particularly noticeable in larger problems where the original node numbering produces an excessively large frontwidth. (ii) Material-specific computations The issues pointed out here affect only the computing times for specific material models and are expected to have a much lower impact in overall speed than the linear solver issue discussed above. Some of the material model-specific computations carried out in HYPLAS could be made a bit faster. For example, for isotropic models whose stress update is carried out in the principal stress space (such as the Tresca and Mohr-Coulomb models - see routines SUTR and SUMC, files ../HYPLAS_v2.0/src/TRESCA/sutr.f and ../HYPLAS_v2.0/MOHR_COULOMB/sumc.f, respectively) the spectral decomposition of the stress in carried out in the state update update routine and then repeated in the corresponding routine for computation of the consistent tangent operator (refer to files ../HYPLAS_v2.0/src/TRESCA/cttr.f and ../HYPLAS_v2.0/src/MOHR_COULOMB/ctmc.f, respectively, for the Tresca and Mohr-Coulomb plasticity models). Some savings in computing time can be achieved here by storing the stress eigenprojection tensors (these can be stored as state variables) during the execution of the state updating and then retrieving them later for use in the computation of the consistent tangent operator. This change can be incorporated to the code relatively easily. The computation of the exponential map and is derivative for the single crystal plasticity model (routines EXPMAP, file ../HYPLAS_v2.0/src/CRYSTAL/expmap.f and DEXPMP, file ../HYPLAS_v2.0/src/CRYSTAL/dexpmp.f) is carried out in three dimensions (these routines have been adapted from an earlier three-dimensional code). To improve efficiency, these can be adapted to work only in two-dimensional problems by removing the unnecessary operations related to the third dimension. 6.(b) Output of nodal averaged values The reader should be aware that the way in which nodal averaged values of stresses and other variables are calculated in HYPLAS is very basic (and rudimentary). This feature of the program is made available only to help those interested in producing contour plots, etc from results presented in HYPLAS result files and should be useful in many circumstances of interest. This facility has in fact been used in producing many of the figures presented in the textbook. But note, for example, that the values of incremental plastic multipliers for plasticity models may take (inadmissible) negative values when extrapolated from Gauss-point to nodes and averaged. We remark that more sophisticated and refined techniques of transferring Gauss point values of variables to nodal points and obtaining the corresponding smoothed field are available in the current literature. These fall outside the scope of the companion textbook of HYPLAS.
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Author: gtcewli3 |
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Description: 一般常用的英语背诵软件都是以单词为主，不能很好的理解英语句子的结构，而"英语句子通"能帮你实现整句的背诵，而且有整句的即时语音，中国人学英语往往注重背单词，而忽略了句子，往往达不到说一口流利英语的效, "英语句子通"的出现弥补了这个空白。 附了NewConcept第一册的部分句子(mdb数据库形式，不加密),可以自己添加。 软件要求：window系列平台,微软语音引擎（如装了金山词霸就可以了） 需vb6运行库，ado引擎。 注：附全部vb源代码！！！ -commonly used software to memorize English words are based not well understood English sentence structure, "English sentence-" can help you achieve recitation of sentence, but the sentence instant voice, the Chinese people tend to focus on learning English words back, while ignoring the sentence, often fail Fluent in English, said the effect, "English sentence links" can make up this gap. A list of NewConcept the first part of the sentence (mdb database form and encryption), it will add its own. Software requirements : window Series platform, Microsoft Speech engine (such as installing a free email can be a) need VB6 runtime, ado engine. Note : A full vb source code! ! !
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Author: 咖啡茶 |
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Description: 南京工业大学的《数据结构》教学大纲，数据结构是南工大考研专业课程的重点课程，这里包含了所有重点，对考研的同学很有帮助！-Nanjing University of the "data structure," the curriculum, data structure is a large South taking tests for professional courses focus on courses here encompasses all focus on the students taking tests helpful!
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Size: 7168 |
Author: 张东 |
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Description: FTKernelAPI 是一套完全免费(对于非商业性程序而言)的实现了BitTorrent 网络协议的内核库。在兼容官方BitTorrent协议的同时针对国内的网络带宽状况进行了优化，增加了一个侦听端口支持多个任务同时运行, 文件选择下载，断点续传, 自动配置支持UPnP协议的路由器, 对于全局或者单个任务进行速度限制等功能。FTKernelAPI BT协议内核库以及示例源码 BitZam 的出现，使BT软件开发不再高深。只要你愿意，不必关心网络编程，BT协议，只需简单的调用FTKernelAPI的接口在3天的时间里就能开发出满足你自己需要的BT下载软件。假如你正在想自己开发一个BT-FTKernelAPI is a free (for non-commercial procedures), the realization of the BitTorrent network protocol kernel libraries. BitTorrent compatible with the official agreement to focus on the domestic situation of the network bandwidth is optimized for an increase of one interception ports to support multiple tasks running simultaneously, the option to download documents, HTTP, automatic configuration support the UPnP protocol routers, to the whole picture or a single mandate features such as speed limits . FTKernelAPI BT agreement Kernel Library and the source BitZam example, the emergence of BT no longer advanced software development. As long as you are willing to, not concerned about network programming, BT agreement, you can simply call FTKernelAPI interface in three days time will be de
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Size: 442368 |
Author: 海天 |
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Description: FTKernelAPI 是一套完全免费(对于非商业性程序而言)的实现了BitTorrent 网络协议的内核库。在兼容官方BitTorrent协议的同时针对国内的网络带宽状况进行了优化，增加了一个侦听端口支持多个任务同时运行, 文件选择下载，断点续传, 自动配置支持UPnP协议的路由器, 对于全局或者单个任务进行速度限制等功能。FTKernelAPI BT协议内核库以及示例源码 BitZam 的出现，使BT软件开发不再高深。只要你愿意，不必关心网络编程，BT协议，只需简单的调用FTKernelAPI的接口在3天的时间里就能开发出满足你自己需要的BT下载软件。假如你正在想自己开发一个BT下载软件或者你正在为你的公司的程序寻找一种省钱省时的下载解决方案, FTKernelAPI将是你的理想选择-FTKernelAPI is a free (for non-commercial procedures), the realization of the BitTorrent network protocol kernel libraries. BitTorrent compatible with the official agreement to focus on the domestic situation of the network bandwidth is optimized for an increase of one interception ports to support multiple tasks running simultaneously, the option to download documents, HTTP, automatic configuration support the UPnP protocol routers, to the whole picture or a single mandate features such as speed limits . FTKernelAPI BT agreement Kernel Library and the source BitZam example, the emergence of BT no longer advanced software development. As long as you are willing to, not concerned about network programming, BT agreement, you can simply call FTKernelAPI interface in three days time will be de
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Author: |
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Description: 模拟内存分配的c语言实现
六、 实验目的
了解用户程序分配内存以及回收所用内存的过程，加深对操作系统存储管理机制的理解。
七、 实验内容
采用首次适应法、最佳适应法或最差适应法，编写一内存分配和回收模拟程序。
（提示：“内存空闲区”数组的设置原理类似于实验一。动态地随机产生新的“内存分配”或“内存回收”请求，再按照你选定的分配算法修改这个数组。由于这个实验的重点在于内存分配，所以不考虑与某内存区相关的进程情况。）
-simulation memory allocation in C Language 6, the experiment was to understand user program memory allocation and recovery of memory used by the process, enhance the operating system memory management mechanisms and understanding. 7, the first experiment using content to adapt, adapt best or the worst adaptation law, the preparation of a memory allocation and recovery simulation program. (Tip : "memory free zone" set up an array of principles similar to the experimental one. Dynamic random to create a new "memory allocation" or "memory recovery" request, then you have chosen in accordance with the allocation algorithm to change the array. As the focus of this experiment is memory allocation, there is no test taking into account with a certain memory areas rela
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Size: 3072 |
Author: 丘方 |
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Description: word形式的办公表格文档 量很大 free下载-word form of office documents form the tremendous volume of free downloads
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Size: 1606656 |
Author: 呵呵 |
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Description: FTKernelAPI是一套完全免费(对于非商业性程序而言)的实现了BitTorrent 网络协议的内核库。在兼容官方BitTorrent协议的同时针对国内的网络带宽状况进行了优化，增加了一个侦听端口支持多个任务同时运行, 文件选择下载，断点续传, 自动配置支持UPnP协议的路由器, 对于全局或者单个任务进行速度限制等功能。FTKernelAPI BT协议内核库以及示例码 BitZam 的出现，使BT软件开发不再高深。只要你愿意，不必关心网络编程，BT协议，只需简单的调用FTKernelAPI的接口在3天的时间里就能开发出满足你自己需要的BT下载软件。
-FTKernelAPI is a free (for non-commercial procedures), the realization of the Bi tTorrent network protocol kernel libraries. BitTorrent compatible with the official agreement to focus on the domestic situation of network bandwidth optimization, an increase of one interception ports to support multiple tasks running simultaneously, the option to download documents, HTTP, automatic configuration support the UPnP protocol routers, to the whole picture or a single mandate features such as speed limits. FTKernelAPI BT agreement kernel libraries, and sample code BitZam the emergence so BT no longer advanced software development. As long as you are willing to, not concerned about network programming, BT agreement you can simply call FTKernelAPI interface in three days time will be developed to me
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Size: 435200 |
Author: mm110044 |
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Description: 這是一款好用的 streaming 軟體，重點還是免費的-This is good for streaming software, the focus is still free
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Size: 11814912 |
Author: plato wu |
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Description: Zen Cart是真正的电子商务艺术，一个免费、界面友好，开放式源码的购物车软件。 该软件由一些销售商、程序员、设计师和顾问们共同开发，目的就是用户能建立风格不同的电子商务系统。现有的一些解决方案过重于编程，而不是着眼于客户的需求。ZenCart把销售商和购物者的需求放在第一位。同时，那些程序如果没有专业人员，几乎不可能安装成功，而一个有基本计算机知识的人就会安装Zen Cart。另外那些程序也非常昂贵... 而Zen Cart，完全免费!-Zen Cart e-commerce are really art, a free, user-friendly, open source shopping cart software. The software by some vendors, programmers, designers and consultants to develop the purpose of users can set up different styles of e-commerce systems. Some of the existing solutions have focused on programming, rather than focus on customer needs. ZenCart put vendors and shoppers demand top priority. At the same time, those procedures if there is no professional staff, it is almost impossible to install successfully, and have basic computer knowledge a person will install the Zen Cart. In addition to those procedures are very expensive ... and Zen Cart, completely free!
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Size: 6815744 |
Author: billy |
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Description: WordPress的是一个最先进的语义个人发布平台，重点是美学， Web标准，和可用性。 WordPress的是免费和无价的在同一时间。 -WordPress is a state-of-the-art semantic personal publishing platform with a focus on aesthetics, web standards, and usability. What a mouthful. WordPress is both free and priceless at the same time.
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Size: 1305600 |
Author: 杨子 |
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Description: LR分析法是一种自下而上进行规范归约的语法分析法，L指从左到右扫描输入符号串，R是指构造最右推导的逆过程。对大多数无二义性上下文无关文法描述的语言都可用它进行有效的分析。主要分析器有LR（0），SLR（1），LR（1），LALR（1）：
LR（0）：在分析的每一步，只需根据当前栈顶状态而不必向前查看输入符号就能确定应采取的分析动作。所能分析的LR（0）文法要求文法的每一个LR（0）项目集中都不含冲突项目。
-LR analysis is a bottom-up norms to reduce the syntax analysis method, L refers to input symbol string scanning from left to right, R refers to the right structure of the inverse process of deduction. Goes for the justice for the majority of context-free grammar of the language to describe it are available for effective analysis. The main analyzer are LR (0), SLR (1), LR (1), LALR (1): LR (0): every step of the analysis, just the light of the current Top-state without having to enter the symbols on the forward view can be analyzed to determine actions to be taken. Beyond the analysis of LR (0) grammar requirements of each grammar LR (0) projects focus on the project are free of conflict.
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Size: 8192 |
Author: 大海 |
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Description: An overview of 3D and free viewpoint video is given in this paper
with special focus on related standardization activities in MPEG.
Free viewpoint video allows the user to freely navigate within real
world visual scenes, as known from virtual worlds in computer
graphics. Examples are shown, highlighting standards conform
realization using MPEG-4. Then the principles of 3D video are
introduced providing the user with a 3D depth impression of the
observed scene. Example systems are described again focusing on
their realization based on MPEG-4. Finally multi-view video coding is
described as a key component for 3D and free viewpoint video
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Size: 332800 |
Author: ali |
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Description: 讯奇旅游系统采用微软成熟的编程语言Asp+Mssql/Access开发，采用Web2.0 Css+Div模板架构风格布局，度假产品展示功能非常强大，并注重于强大和操作便捷等特点，尤其适合没有操作经验的用户使用，是专门为各大旅行社和旅游服务公司打造的高效、重量级的旅游网站平台。-Odd News Travel system uses Microsoft fledged programming language Asp+ Mssql/Access development, using Web2.0 Css+ Div architectural style layout template, holiday packages show is very powerful, and strong focus on operation and convenient features, especially for not operating experienced users use, specifically for major travel agencies and travel services company to build highly efficient, heavyweight travel site internet.
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Size: 5516288 |
Author: iwbg |
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