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使用viginear,Column permutation,DES加密和解密
標(biāo)簽： permutation viginear Column DES
上傳時(shí)間： 2013-11-26
上傳用戶：xwd2010
在國(guó)內(nèi)Protel軟件一直大受歡迎，從DOS時(shí)代的Protel3.3(Autotrax 1.61)到現(xiàn)在具有EDA Client/Server （客戶/服務(wù)器）即C/S“框架”體系結(jié)構(gòu)的Protel98，它始終是PCB設(shè)計(jì)和制造領(lǐng)域的大眾化工具軟件，成為電子設(shè)計(jì)工作者們的首選。 在規(guī)范化的設(shè)計(jì)管理中，設(shè)計(jì)文件圖樣必須遵守相應(yīng)的國(guó)家標(biāo)準(zhǔn)，如《電子產(chǎn)品圖樣繪制規(guī)則》、《設(shè)計(jì)文件管理制圖》和《印制板制圖》等，而由于Protel軟件都是英文版，因此無(wú)法直接打印出符合國(guó)家標(biāo)準(zhǔn)的圖紙，要將圖紙規(guī)范化常用的方式是套打，即先將符合國(guó)家標(biāo)準(zhǔn)的表和漢字等打在紙上，再將該紙放入打印機(jī)，用Protel軟件將印制板圖打印其上，形成符合標(biāo)準(zhǔn)的文件，但這種做法效率很低，而且圖形常會(huì)打偏，有時(shí)甚至?xí)蚍矗?jīng)筆者試驗(yàn)，找到了一種簡(jiǎn)便的方法，使印制板圖轉(zhuǎn)換為AUTOCAD格式，再在AUTOCAD里一次性打印出符合標(biāo)準(zhǔn)的圖紙。
標(biāo)簽： AUTOCAD PROTEL 文件轉(zhuǎn)換 打印
上傳時(shí)間： 2013-10-12
上傳用戶：Wwill
The PCF8578 is a low power CMOS1 LCD row and Column driver, designed to drive dotmatrix graphic displays at multiplex rates of 1:8, 1:16, 1:24 or 1:32. The device has40 outputs, of which 24 are programmable and configurable for the following ratios ofrows/Columns: 32¤8, 24¤16, 16¤24 or 8¤32. The PCF8578 can function as a stand-alone LCDcontroller and driver for use in small systems. For larger systems it can be used inconjunction with up to 32 PCF8579s for which it has been optimized. Together these twodevices form a general purpose LCD dot matrix driver chip set, capable of driving displaysof up to 40960 dots. The PCF8578 is compatible with most microcontrollers andcommunicates via a two-line bidirectional bus (I2C-bus). Communication overhead isminimized by a display RAM with auto-incremented addressing and display bankswitching.
標(biāo)簽： 8578 PCF LCD 圖形點(diǎn)陣
上傳時(shí)間： 2013-10-23
上傳用戶：頂?shù)弥?/p>
1 FEATURES· Single chip LCD controller/driver· 1 or 2-line display of up to 24 characters per line, or2 or 4 lines of up to 12 characters per line· 5 ′ 7 character format plus cursor; 5 ′ 8 for kana(Japanese syllabary) and user defined symbols· On-chip:– generation of LCD supply voltage (external supplyalso possible)– generation of intermediate LCD bias voltages– oscillator requires no external components (externalclock also possible)· Display data RAM: 80 characters· Character generator ROM: 240 characters· Character generator RAM: 16 characters· 4 or 8-bit parallel bus or 2-wire I2C-bus interface· CMOS/TTL compatible· 32 row, 60 Column outputs· MUX rates 1 : 32 and 1 : 16· Uses common 11 code instruction set· Logic supply voltage range, VDD - VSS: 2.5 to 6 V· Display supply voltage range, VDD - VLCD: 3.5 to 9 V· Low power consumption· I2C-bus address: 011101 SA0.
標(biāo)簽： 2116 PCF LCD 驅(qū)動(dòng)器芯片
上傳時(shí)間： 2013-11-08
上傳用戶：laozhanshi111
在國(guó)內(nèi)Protel軟件一直大受歡迎，從DOS時(shí)代的Protel3.3(Autotrax 1.61)到現(xiàn)在具有EDA Client/Server （客戶/服務(wù)器）即C/S“框架”體系結(jié)構(gòu)的Protel98，它始終是PCB設(shè)計(jì)和制造領(lǐng)域的大眾化工具軟件，成為電子設(shè)計(jì)工作者們的首選。 在規(guī)范化的設(shè)計(jì)管理中，設(shè)計(jì)文件圖樣必須遵守相應(yīng)的國(guó)家標(biāo)準(zhǔn)，如《電子產(chǎn)品圖樣繪制規(guī)則》、《設(shè)計(jì)文件管理制圖》和《印制板制圖》等，而由于Protel軟件都是英文版，因此無(wú)法直接打印出符合國(guó)家標(biāo)準(zhǔn)的圖紙，要將圖紙規(guī)范化常用的方式是套打，即先將符合國(guó)家標(biāo)準(zhǔn)的表和漢字等打在紙上，再將該紙放入打印機(jī)，用Protel軟件將印制板圖打印其上，形成符合標(biāo)準(zhǔn)的文件，但這種做法效率很低，而且圖形常會(huì)打偏，有時(shí)甚至?xí)蚍矗?jīng)筆者試驗(yàn)，找到了一種簡(jiǎn)便的方法，使印制板圖轉(zhuǎn)換為AUTOCAD格式，再在AUTOCAD里一次性打印出符合標(biāo)準(zhǔn)的圖紙。
標(biāo)簽： AUTOCAD PROTEL 文件轉(zhuǎn)換 打印
上傳時(shí)間： 2013-11-01
上傳用戶：杏簾在望
SelectionDemo also has code (not included in the preceding snippet) that changes the table s selection orientation. By changing a couple of boolean values, you can make the table allow either Column selections or individual cell selections, instead of row selections.
標(biāo)簽： SelectionDemo the preceding included
上傳時(shí)間： 2015-05-04
上傳用戶：gut1234567
The code is fairly straightforward, except perhaps for the call to convertColumnIndexToModel. That call is necessary because if the user moves the Columns around, the view s index for the Column doesn t match the model s index for the Column. For example, the user might drag the Vegetarian Column (which the model considers to be at index 4) so it s displayed as the first Column — at view index 0. Since prepareRenderer gives us the view index, we need to translate the view index to a model index so we can be sure we re dealing with the intended Column
標(biāo)簽： convertColumnIndexToModel straightforward perhaps fairly
上傳時(shí)間： 2013-12-10
上傳用戶：it男一枚
Rotating shafts experience a an elliptical motion called whirl. It is important to decompose this motion into a forward and backward whil orbits. The current function makes use of two sensors to generate a bi-directional spectrogram. The method can be extended to any time-frequency distribution ％ ％ compute the forward/backward Campbell/specgtrogram ％ ％ INPUT: ％ y (n x 2) each Column is measured from a different sensor ％ /////// ％ __ ％ |s1| y(:,1) ％ |__| ％ __ ％ / \ ________|/ ％ | | | s2 |/ y(:,2) ％ \____/ --------|/ ％ ％ Fs Sampling frequnecy ％ ％ OUTPUT: ％ B spectrogram/Campbel diagram ％ x x-axis coordinate vector (time or Speed) ％ y y-axis coordinate vector (frequency [Hz])
標(biāo)簽： experience elliptical decompose important
上傳時(shí)間： 2015-06-23
上傳用戶：372825274
pb datawindow 技巧 例子： 使DataWindow列只能追加不能修改 如何使DataWindow中的數(shù)據(jù)只能追加新記錄而不能修改，利用 Column 的 Protect 屬性可以很方便的做到這一點(diǎn)，方法如下： 將每一列的 Protect 屬性設(shè)置為： If( IsRowNew(), 0, 1) ) 在 PowerScript 中可以動(dòng)態(tài)修改 Protect 屬性： dw_1.Modify("Column_name_here.Protect= 1~tIf(IsRowNew(),0,1) ") 這樣，DataWindow 中只有新追加的記錄可修改，而其他記錄是只讀的。
標(biāo)簽： DataWindow datawindow 修改 pb
上傳時(shí)間： 2013-12-09
上傳用戶：
Address book helps you look up your addresses from the system tray. It is quite useful in that way 慶ause it stays out of the way and is easily accessible when needed. Double clicking on any URL will start the default web browser and take you to that URL. Double clicking on the phone number will dial that number. Every Column supports sorting and can be customized to your needs. Preview will display the notes associated with each record. This program can also import Comma Separated Values (*csv) text files of Outlook Express.
標(biāo)簽： addresses Address system useful
上傳時(shí)間： 2014-07-08
上傳用戶：lyy1234
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