LRU(最近最少使用算法) and MRU(最近最常使用算法)所谓的LRU(Least recently used)算法的基本概念是:当内存的剩余的可用空间不够时,缓冲区尽可能的先保留使用者最常使用的数据,换句话说就是优先清除”较不常使用的数据”,并释放其空间
上传时间: 2014-01-03
上传用户:彭玖华
this book gives a detailed description of the widespread or recently used standards like Wi-Fi, Bluetooth, ZigBee, and WiMAX.
标签: description widespread standards detailed
上传时间: 2016-12-19
上传用户:youlongjian0
escription: The Rijndael Encryption algorithm has been recently recognized as an AES (Advanced Encryption Standard). It was recently (April 2001) released in Visual Basic. The source code here is for Micro$oft Visual C++ 6.0 for developing and testing. Have fun with it!
标签: escription Encryption recognized algorithm
上传时间: 2014-01-07
上传用户:李梦晗
have recently become very interested in the area of genetic algorithms and Ant Colony Optimization techniques. I was determined to write a complete program demonstrating these two techniques. In particular I wanted to compare the efficiency of these two approaches in the area of finding solutions to the Traveling Salesman Problem
标签: Optimization algorithms interested recently
上传时间: 2013-12-21
上传用户:牛布牛
I originally wrote this for a Z80 back in the early 80s. I found the source code recently in one of the boxes of printouts I ve kept over the years. Good thing too, since most of the work was on a CPM system using 128k 8inch floppies.
标签: originally the recently source
上传时间: 2013-12-14
上传用户:tedo811
recently a new technology for high voltage Power MOSFETshas been introduced – the CoolMOS™ . Based on thenew device concept of charge compensation the RDS(on) areaproduct for e.g. 600V transistors has been reduced by afactor of 5. The devices show no bipolar current contributionlike the well known tail current observed during the turn-offphase of IGBTs. CoolMOS™ virtually combines the lowswitching losses of a MOSFET with the on-state losses of anIGBT.
标签: COOLMOS
上传时间: 2013-11-14
上传用户:zhyiroy
Most circuit designers are familiar with diode dynamiccharacteristics such as charge storage, voltage dependentcapacitance and reverse recovery time. Less commonlyacknowledged and manufacturer specifi ed is diode forwardturn-on time. This parameter describes the timerequired for a diode to turn on and clamp at its forwardvoltage drop. Historically, this extremely short time, unitsof nanoseconds, has been so small that user and vendoralike have essentially ignored it. It is rarely discussed andalmost never specifi ed. recently, switching regulator clockrate and transition time have become faster, making diodeturn-on time a critical issue. Increased clock rates aremandated to achieve smaller magnetics size; decreasedtransition times somewhat aid overall effi ciency but areprincipally needed to minimize IC heat rise. At clock speedsbeyond about 1MHz, transition time losses are the primarysource of die heating.
上传时间: 2013-10-10
上传用户:谁偷了我的麦兜
A recent trend in the design of portable devices has beento use ceramic capacitors to filter DC/DC converter inputs.Ceramic capacitors are often chosen because of theirsmall size, low equivalent series resistance (ESR) and highRMS current capability. Also, recently, designers havebeen looking to ceramic capacitors due to shortages oftantalum capacitors.
上传时间: 2013-11-05
上传用户:comer1123
This article has been contributed to the TI Developer Wiki. To see the most recently updated version or tocontribute, visit this topic at:
上传时间: 2013-11-04
上传用户:钓鳌牧马
Although Stellaris microcontrollers have generous internal SRAM capabilities, certain applicationsmay have data storage requirements that exceed the 8 KB limit of the Stellaris LM3S8xx seriesdevices. Since microcontrollers do not have an external parallel data-bus, serial memory optionsmust be considered. Until recently, the ubiquitous serial EEPROM/flash device was the only serialmemory solution. The major limitations of EEPROM and flash technology are slow write speed, slowerase times, and limited write/erase endurance.recently, serial SRAM devices have become available as a solution for high-speed dataapplications. The N256S08xxHDA series of devices, from AMI Semiconductor, offer 32 K x 8 bits oflow-power data storage, a fast Serial Peripheral Interface (SPI) serial bus, and unlimited write cycles.The parts are available in 8-pin SOIC and compact TSSOP packages.
上传时间: 2013-10-14
上传用户:cxl274287265