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Description: 这是一个不到2000行的操作系统，巧妙地利用ARM9 CPU的内存管理单元(MMU)实现进程的切换。ARM9的4G虚拟地址可分成128个进程空间，每个32M。虽然它们的虚拟地址(VA)都是0-(32M-1)，但是对应的MVA(Modified vitual address,由虚拟地址VA和进程号PID组合而来)不一样，设置MVA对应的页表指向不同物理地址就可以很方便地让各进程运行空间相互隔开。代码很少，注释丰富，希望能对想理解操作系统、了解ARM体系结构的朋友有所帮助。
-This is a trip of less than 2000 operating system, cleverly using ARM9 CPU memory management unit (MMU) to achieve the switching process. ARM9 4G virtual address can be divided into 128 process space, each 32M. While their virtual address (VA) are 0 - (32M-1), but the corresponding MVA (Modified Virtual address, and by the virtual address VA and the process of portfolio from PID) not the same, set MVA corresponding page table at the different physical address can be very easy to let the the process of separating the mutual operation of space. Code rarely Notes rich, in hopes of understanding the operating system, understanding the ARM architecture friends help.
Platform: |
Size: 76675 |
Author: 韦东 |
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Description: The present paper deals with the problem of calculating mean delays in polling systems
with either exhaustive or gated service. We develop a mean value analysis (MVA) to
compute these delay figures. The merits of MVA are in its intrinsic simplicity and its
intuitively appealing derivation. As a consequence, MVA may be applied, both in an
exact and approximate manner, to a large variety of models.
Platform: |
Size: 143973 |
Author: 郑林 |
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Description: This program is to calculate the Reciving End MVA Power for transmission overhead line 220KV
Platform: |
Size: 4289 |
Author: rabah03 |
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Description: 这是一个不到2000行的操作系统，巧妙地利用ARM9 CPU的内存管理单元(MMU)实现进程的切换。ARM9的4G虚拟地址可分成128个进程空间，每个32M。虽然它们的虚拟地址(VA)都是0-(32M-1)，但是对应的MVA(Modified vitual address,由虚拟地址VA和进程号PID组合而来)不一样，设置MVA对应的页表指向不同物理地址就可以很方便地让各进程运行空间相互隔开。代码很少，注释丰富，希望能对想理解操作系统、了解ARM体系结构的朋友有所帮助。
-This is a trip of less than 2000 operating system, cleverly using ARM9 CPU memory management unit (MMU) to achieve the switching process. ARM9 4G virtual address can be divided into 128 process space, each 32M. While their virtual address (VA) are 0- (32M-1), but the corresponding MVA (Modified Virtual address, and by the virtual address VA and the process of portfolio from PID) not the same, set MVA corresponding page table at the different physical address can be very easy to let the the process of separating the mutual operation of space. Code rarely Notes rich, in hopes of understanding the operating system, understanding the ARM architecture friends help.
Platform: |
Size: 76800 |
Author: 韦东 |
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Description: The present paper deals with the problem of calculating mean delays in polling systems
with either exhaustive or gated service. We develop a mean value analysis (MVA) to
compute these delay figures. The merits of MVA are in its intrinsic simplicity and its
intuitively appealing derivation. As a consequence, MVA may be applied, both in an
exact and approximate manner, to a large variety of models.
Platform: |
Size: 143360 |
Author: 郑林 |
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Description: 图像采集卡源代码，包括基本的图像处理功能-Image acquisition card source code, including the basic image processing functions
Platform: |
Size: 11076608 |
Author: kaka |
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Description: 基于图像的纹理特征参数的MVA的提取，该方法使用方便，理解简单。-Image-based texture feature extraction parameters of MVA, the method easy to use, easy to understand.
Platform: |
Size: 55296 |
Author: luoze |
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Description: POWER_FLOW Function to perform a power-flow analysis.
Function power_flow reads a data set describing a power system from a disk file, and performs a power-flow analysis on it. The only argument is the name of the input file. There are three types of lines in the input file. The "SYSTEM" line specifies the name of the power system and the base apparent power of the power system in MVA. -POWER_FLOW Function to perform a power-flow analysis.
Function power_flow reads a data set describing a power system from a disk file, and performs a power-flow analysis on it. The only argument is the name of the input file. There are three types of lines in the input file. The "SYSTEM" line specifies the name of the power system and the base apparent power of the power system in MVA.
Platform: |
Size: 6144 |
Author: sbach |
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Description: 关于MVA与STRUTS框架的一些学习资料，演示文稿-MVA and STRUTS framework on a number of learning materials, presentations
Platform: |
Size: 642048 |
Author: Devil Dante |
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Description: 基于PSCAD_EMTDC的统一潮流控制器（UPFC）动态仿真模型
100MVA，230KV，60Hz交流输电系统
一共三个文件，完整的UPFC系统模型，控制器模型，以及STATCOM和SSSC单独运行的模块都有。
-UPFC model based on PSCAD_EMTDC
100 MVA UPFC operating on a 230 kV ac, 60 Hz transmission system。
Platform: |
Size: 46080 |
Author: eensy |
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Description: 基于pscad的DFIG变速恒频双馈风力发电仿真模型，是2010年3月修改版，将直流母线电压降到800V，电机为0.9【MVA】。可以进行低电压穿越仿真。-Based pscad of DFIG VSCF doubly fed wind power generation simulation model is a modified version in March 2010, the DC bus voltage down to 800V, motor 0.9】 【MVA. Can be low voltage through the simulation.
Platform: |
Size: 25600 |
Author: 徐明珂 |
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Description: 免非法程序，可用于CF外挂免非法程序，可用于CF外挂-Free illegal procedures, can be used for illegal procedure free CF plug-in can be used for CF plug-in
Platform: |
Size: 1024 |
Author: 李立 |
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Description: MVA的保护模块 可以保护易语言不误报 防止破解 但不是绝对能防止人破解-MVA protection module to protect against false positives is not easy to break the language but not absolutely prevent people break
Platform: |
Size: 1024 |
Author: 王飞 |
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Description: 【摘要】本文针对STATCOM在输电系统的应用，介绍了链式主电路结构的工作原理，
提出了两种百Mvar级链式STATCOM的主电路方案，从其可靠性、冗余度、年可利用率等方面
进行了分析，可作为设计、研制百Mvar级STATCOM装置主电路的参考。-One hundred Mva chain STATCOM main circuit-level design
Platform: |
Size: 333824 |
Author: zhwb |
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Description: APPLICATION OF A 20 MVA STATCOM
FOR VOLTAGE BALANCING AND POWER ACTIVE FILTERING
OF A 25 kV AC SINGLE-PHASE RAILWAY SUBSTATION
CONNECTED TO THE 90 kV GRID IN FRANCE
Platform: |
Size: 221184 |
Author: mohammad |
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Description: 基于MVA的教学过程质量分析及学习评价方法Based on the MVA teaching process quality analysis and evaluation of learning method-Based on the MVA teaching process quality analysis and evaluation of learning method
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Size: 577536 |
Author: me520 |
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Description: 保护壳可以过360，保护程序不被反编译。-failed to translate
Platform: |
Size: 1024 |
Author: 王君 |
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Description: 能量流动方程运行能量流动分析。变量是文件名。读取系统数据。- POWER_FLOW Function to perform a power-flow analysis.
Function power_flow reads a data set describing a power system
from a disk file, and performs a power-flow analysis on it.
The only argument is the name of the input file. There are
three types of lines in the input file. The "SYSTEM" line
specifies the name of the power system and the base apparent
power of the power system in MVA. Its form is:
Platform: |
Size: 6144 |
Author: Ben |
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Description: 网上图书销售系统 Struts2框架 MVA模式编写-bookSale_System is based on MVC and Struts2
Platform: |
Size: 4072448 |
Author: 於风逝 |
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Description: 1. A 5 MVA, 10 kV, 1500 rpm, 3 phase, 50 Hz, 4 pole, star connected alternator is operating on infinite bus bars. Determine the synchronizing power per mechanical degree of displacement under no-load condition. Xs = 20 .-1. A 5 MVA, 10 kV, 1500 rpm, 3 phase, 50 Hz, 4 pole, star connected alternator is operating on infinite bus bars. Determine the synchronizing power per mechanical degree of displacement under no-load condition. Xs = 20 .
Platform: |
Size: 12288 |
Author: roshan |
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