一、 进程控制 1、 定义PCB（可以采用静态结构或动态结构）：包括理论PCB中的基本内容，如ID、进程状态、队列指针。由于无法实现真正的进程创建功能，在实验中只需建立PCB，用它代表完整的进程。 2、 定义进程状态转换方式：进程的状态转换是由进程内部操作或操作系统的控制引起，由于无法实现这些功能，学生可以采用随机数方法或键盘控制方法模拟，并实现对应的控制程序。随机方法指产生1－6的随机数，分别代表创建进程(c)、结束进程(e)、进程阻塞(b)、激活进程(w)、调度进程(p)、时间片到(t)等事件；键盘模拟方法指定义6种按键代表以上6种事件。 3、 根据四种事件处理就绪队列、阻塞队列和当前执行中的进程。 每次事件处理后应形象地显示出当前系统中的执行进程是哪一个，就绪队列和阻塞队列分别包含哪些进程。
上传时间： 2016-12-23
上传用户：wyc199288
专家点评: Y P7 `. @ {$ r％ pa.功能很强大，可以看出花了很多心血在算法上，非常好。算法上还有一点瑕疵，例如在删除一个员工的同时没有办法自动建立其他员工的上下级关系，必须删除全部下级员工，不是非常合理。此外，界面设计过于简单，应该加强. " W" R+ b* g$ a$ Sb.程序运用了自己的算法来提高Tree控件显示的速度和资源分配，这个非常值得肯定和鼓励。* C. c4 D0 e9 ` J$ w# U c.基本实现所有规定的功能，在所有参赛者中唯一熟 : O) l- F6 F9 f) S7 Q. l练使用面向对象设计方式开发程序的工程师，很不错！程序体现了作者非常扎实的数据结构功底，值得大家学习。工程管理也做得非常好，体现了作者在软件工程方面也有很深入的研究，该代码是很好的学习范例。 ％ G* H$ ~3 W1 ]. e! id.算法的创新是独特之处(hashtable算法建立),可见作者在数据结构方面的熟练掌握.此程序是很多专家会员学习典范.
上传时间： 2017-01-19
上传用户：奇奇奔奔
This document provides guidelines and describes how to easily port S60 2nd Edition C++ applications to S60 3rd Edition. The document has been written based on experiences of porting regular S60 2nd Edition applications, such as the S60 Platform: POP/IMAP Example [4] that can be downloaded from Forum Nokia. Code snippets from the example are shown in Chapter 8, “Application build changes,” and in Appendix A, “Code example." In addition, Appendix B, "Commonly used functions that require capabilities," and Appendix C, "Commonly used interfaces that have been changed or removed," provide useful information on some frequently used functions and interfaces in third-party applications.
标签： application guidelines describes document
上传时间： 2017-01-29
上传用户：wang5829
报时小闹钟 本程序是一个用汇编编的精致的图形时钟，运行时双击clock图标即可， 钟表显示的时间为本机系统的时间。 按b键可扩大画面 ；按s键可缩小画面；按c键可改变颜色；按e键可听音乐； 按q键退出本程序.
上传时间： 2013-12-20
上传用户：lyy1234
加密的步骤 1) 计算N的有效位数tn（以字节数计），将最高位的零忽略掉，令tn1＝tn－1。比如N＝0x012A05，其有效位数tn＝5，tn1＝4。 2) 将明文数据A分割成tn1位（以字节数计）的块，每块看成一个大数，块数记为bn。从而，保证了每块都小于N。 3) 对A的每一块Ai进行Bi＝Ai^E MOD N运算。Bi就是密文数据的一块，将所有密文块合并起来，就得到了密文数据B。
上传时间： 2014-12-05
上传用户：caozhizhi
tensor 向量的推广。在一个坐标系下，由若干个数（称为分量）来表示，而在不同坐标系下的分量之间应满足一定的变换规则，如矩阵、多变量线性形式等。一些物理量如弹性体的应力、应变以及运动物体的能量动量等都需用张量来表示。在微分几何的发展中，C.F.高斯、B.黎曼、E.B.克里斯托费尔等人在19世纪就导入了张量的概念，随后由G.里奇及其学生T.列维齐维塔发展成张量分析，A.爱因斯坦在其广义相对论中广泛地利用了张量。
上传时间： 2014-01-20
上传用户：silenthink
复接入，B/W双用户使用直接扩频序列 ％ >>>multiple access b/w 2 users using DS CDMA ％ >>>format is : cdmamodem(user1,user2,snr_in_dbs) ％ >>>user1 and user2 are vectors and they should be of equal length ％ >>>e.g. user1=[1 0 1 0 1 0 1] , user2=[1 1 0 0 0 1 1],snr_in_dbs=-50 ％ >>>or snr_in_dbs=50 just any number wud do ％ Waqas Mansoor ％ NUST , Pakistan
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上传时间： 2014-11-22
上传用户：zl5712176
We analyze, both analytically and numerically, the effectiveness of cloaking an infinite cylinder from observations by electromagnetic waves in three dimensions. We show that, as truncated approximations of the ideal permittivity and permeability tensors tend towards the singular ideal cloaking fields, so that the anisotropy ratio tends to infinity, the D and B fields blow up near the cloaking surface. Since the metamaterials used to implement cloaking are based on effective medium theory, the resulting large variation in D and B will pose a challenge to the suitability of the field averaged characterization of " and 碌. We also consider cloaking with and without the SHS (softand- hard surface) lining, shown in [6] to be theoretically necessary for cloaking in the cylindrical geometry. We demonstrate numerically that cloaking is significantly improved by the SHS lining, with both the far field of the scattered wave significantly reduced and the blow up of D and B prevented.
标签： effectiveness analytically numerically cloaking
上传时间： 2017-03-30
上传用户：zxc23456789
Creating barcodes in Microsoft庐 Office has never been easier. With BarCodeWiz Toolbar you can add barcodes to Microsoft庐 Office applications with a click of a button. In Microsoft庐 Word, create single barcodes, pages of labels, or mail merge documents. In Microsoft庐 Excel庐, select a range of cells and automatically convert each cell to a barcode. In Microsoft庐 Access庐, create reports with barcodes based on your data tables.
标签： BarCodeWiz Microsoft Creating barcodes
上传时间： 2013-12-18
上传用户：asddsd
c pgm to find redundant paths in a graph.Many fault-tolerant network algorithms rely on an underlying assumption that there are possibly distinct network paths between a source-destination pair. Given a directed graph as input, write a program that uses depth-first search to determine all such paths. Note that, these paths are not vertex-disjoint i.e., the vertices may repeat but they are all edge-disjoint i.e., no two paths have the same edges. The input is the adjacency matrix of a directed acyclic graph and a pair(s) of source and destination vertices and the output should be the number of such disjoint paths and the paths themselves on separate lines. In case of multiple paths the output should be in order of paths with minimum vertices first. In case of tie the vertex number should be taken in consideration for ordering.
标签： fault-tolerant algorithms redundant underlyin
上传时间： 2013-12-18
上传用户：jkhjkh1982
