This is balance and fall article. It will be helpful for motor behavior and rehabilitation study.
标签： rehabilitation and behavior balance
上传时间： 2017-07-19
上传用户：cuiyashuo
All inputs of the C16x family have Schmitt-Trigger input characteristics. These Schmitt-Triggers are intended to always provide proper internal low and high levels, even if anundefined voltage level (between TTL-VIL and TTL-VIH) is externally applied to the pin.The hysteresis of these inputs, however, is very small, and can not be properly used in anapplication to suppress signal noise, and to shape slow rising/falling input transitions.Thus, it must be taken care that rising/falling input signals pass the undefined area of theTTL-specification between VIL and VIH with a sufficient rise/fall time, as generally usualand specified for TTL components (e.g. 74LS series: gates 1V/us, clock inputs 20V/us).The effect of the implemented Schmitt-Trigger is that even if the input signal remains inthe undefined area, well defined low/high levels are generated internally. Note that allinput signals are evaluated at specific sample points (depending on the input and theperipheral function connected to it), at that signal transitions are detected if twoconsecutive samples show different levels. Thus, only the current level of an input signalat these sample points is relevant, that means, the necessary rise/fall times of the inputsignal is only dependant on the sample rate, that is the distance in time between twoconsecutive evaluation time points. If an input signal, for instance, is sampled throughsoftware every 10us, it is irrelevant, which input level would be seen between thesamples. Thus, it would be allowable for the signal to take 10us to pass through theundefined area. Due to the sample rate of 10us, it is assured that only one sample canoccur while the signal is within the undefined area, and no incorrect transition will bedetected. For inputs which are connected to a peripheral function, e.g. capture inputs, thesample rate is determined by the clock cycle of the peripheral unit. In the case of theCAPCOM unit this means a sample rate of 400ns @ 20MHz CPU clock. This requiresinput signals to pass through the undefined area within these 400ns in order to avoidmultiple capture events.
上传时间： 2014-04-02
上传用户：han_zh
The field of microelectromechanical systems (MEMS), particularly micromachinedmechanical transducers, has been expanding over recent years, and the productioncosts of these devices continue to fall. Using materials, fabrication processes, anddesign tools originally developed for the microelectronic circuits industry, newtypes of microengineered device are evolving all the time—many offering numerousadvantages over their traditional counterparts. The electrical properties of siliconhave been well understood for many years, but it is the mechanical properties thathave been exploited in many examples of MEMS. This book may seem slightlyunusual in that it has four editors. However, since we all work together in this fieldwithin the School of Electronics and Computer Science at the University of Southampton,it seemed natural to work together on a project like this. MEMS are nowappearing as part of the syllabus for both undergraduate and postgraduate coursesat many universities, and we hope that this book will complement the teaching thatis taking place in this area.
上传时间： 2013-10-16
上传用户：朗朗乾坤
Library of C functions that allows a program to use WinSock 2 functionality if it is available or fall back to WinSock 1.1 if it isn t.
标签： functionality functions available Library
上传时间： 2015-01-18
上传用户：LIKE
1997年9月，NIST征集AES方案，以替代DES。 1999年8月，以下5个方案成为最终候选方案：MARS, RC6, Rijndael, Serpent, Twofish。 2000年10月，由比利时的Joan Daemen和Vincent Rijmen提出的算法最终胜出。（ Rijndael 读成Rain Doll。） http://www.esat.kuleuven.ac.be/~rijmen/rijndael/
标签： 1997
上传时间： 2014-01-19
上传用户：希酱大魔王
rijndael(全).zip，已经通过AES认证。这个源码包是全的，含有std_defs2.h文件。这儿有很多rain doll源码包都不全
上传时间： 2013-12-20
上传用户：270189020
％ This program calculates radar ranges in a jamming environment. It works ％ with both Stand-off jamming and self-screening jamming for steady and Swerling type ％ targets with frequency agility, coherent integration and standard atmosphere/rain ％ attenuation
标签： environment calculates Stand-off program
上传时间： 2013-12-24
上传用户：sammi
Using the UnderC Tokenizer Class It s often necessary to parse complex text files, where standard i/o is too clumsy. C programmers fall back on strtok(), but this can be tricky to use properly. Besides, you are still responsible for keeping strtok() fed with new input, and I don t like the schlepp. Tokenizer is a text-parsing input stream, modelled after the (undocumented) VCL TParser class, and based on the UnderC tokenizing preprocessor front-end.
标签： Tokenizer necessary standard complex
上传时间： 2013-12-16
上传用户：whenfly
两种解决方案 Richard just finished building his new house. Now the only thing the house misses is a cute little wooden fence. He had no idea how to make a wooden fence, so he decided to order one. Somehow he got his hands on the ACME Fence Catalogue 2002, the ultimate resource on cute little wooden fences. After reading its preface he already knew, what makes a little wooden fence cute. A wooden fence consists of N wooden planks, placed vertically in a row next to each other. A fence looks cute if and only if the following conditions are met: ?The planks have different lengths, namely 1, 2, . . . , N plank length units. ?Each plank with two neighbors is either larger than each of its neighbors or smaller than each of them. (Note that this makes the top of the fence alternately rise and fall.)
标签： house the finished building
上传时间： 2014-01-26
上传用户：541657925
富士通单片机MB902420系列 extINT Project: All external Interrupt-Pins INT0 .. INT7 will be enabled. A falling edge on INTx will toggle PDR4_P4x in order to toggle the LEDx of the Flash-CAN-100P Board e.g. falling edge on INT3 will result in LED D3 will toggleP47..P40 (UserLEDs of FlashCan100P) and will send out again as byte-packages to ID#2 Receive-Buffer #1 : basic can Transmit-Buffer #6 : full-can ID #2
标签： Interrupt-Pins external Project enabled
上传时间： 2016-04-27
上传用户：waizhang
