These BCD-to-decimal decoders/drivers consist of eightinverters and ten, four-input NAND gate
標(biāo)簽： 74145 TTL BCD 十進(jìn)制
上傳時(shí)間： 2013-07-31
上傳用戶：1047385479
針對(duì)當(dāng)前安檢力學(xué)試驗(yàn)機(jī)所能完成的試驗(yàn)種類單一、自動(dòng)化程度低等問題，提出一種以ATmega128單片機(jī)為核心控制器的安檢力學(xué)試驗(yàn)機(jī)的設(shè)計(jì)。詳細(xì)闡述了該安檢力學(xué)試驗(yàn)機(jī)各個(gè)組成部分的設(shè)計(jì)原理和方案，并且給出了各部分的軟件設(shè)計(jì)思想和操作流程。經(jīng)過大量測(cè)試試驗(yàn)表明：設(shè)計(jì)的安檢力學(xué)試驗(yàn)機(jī)可以完成多達(dá)十余種的力學(xué)安檢試驗(yàn)，完全符合相關(guān)國(guó)家標(biāo)準(zhǔn)，并且具有數(shù)據(jù)采集精度高、傳輸速度快、操作安全簡(jiǎn)便等特點(diǎn)，實(shí)現(xiàn)了安檢設(shè)備的多功能化、數(shù)字化和自動(dòng)化。 Abstract: Currently， many mechanical security testing machines have only one function. The degree of automation of them is low. To solve those problems， a new kind of mechanical security testing machine， using ATmega128 micro-controller as its core controller， has been advanced. It describes the components of the machine. The principles and the scheme in the designing processes are presented in detail， and the software architecture and the operation processes of each part are given. After having done many testing， we have reached the following conclusions: the mechanical security testing machine presented can do over ten mechanical security tests complying with related national standards. It has high data acquisition accuracy and high transmission speed. The operation of the machine is simple and safe. In general， this machine is a multi-functional， highly automatic， digitalized security testing device.
標(biāo)簽： ATmega 128 安檢 試驗(yàn)機(jī)
上傳時(shí)間： 2013-11-05
上傳用戶：a67818601
This book evolved over the past ten years from a set of lecture notes developed while teaching the undergraduate Algorithms course at Berkeley and U.C. San Diego. Our way of teaching this course evolved tremendously over these years in a number of directions, partly to address our students' background (undeveloped formal skills outside of programming), and partly to reect the maturing of the eld in general, as we have come to see it. The notes increasingly crystallized into a narrative, and we progressively structured the course to emphasize the ?story line? implicit in the progression of the material. As a result, the topics were carefully selected and clustered. No attempt was made to be encyclopedic, and this freed us to include topics traditionally de-emphasized or omitted from most Algorithms books.
標(biāo)簽： Algorithms 算法
上傳時(shí)間： 2013-11-11
上傳用戶：JamesB
Have you had the exasperating experience of a laptop orPDA defi antly not responding to your commands? Youfrantically press key after key, but to no avail. As hopeturns to anger (but just before you throw the company’slaptop through the window) you slam your fi nger againstthe on/off power button. ten seconds later, your laptopfi nally surrenders and the screen goes black in a highpitched whimper.
標(biāo)簽： 427 DN 開關(guān)控制器 故障保護(hù)
上傳時(shí)間： 2013-12-10
上傳用戶：Vici
書名：基本商業(yè)程序的建模 Essential Business Process Modeling (Paperback) 作者： Mike Havey 出版商：O Reilly 1 edition (August 18, 2005) 內(nèi)容介紹： ten years ago, groupware bundled with email and calendar applications helped track the flow of work from person to person within an organization. Workflow in today s enterprise means more monitoring and orchestrating massive systems. A new technology called Business Process Management, or BPM, helps software architects and developers design, code, run, administer, and monitor complex network-based business processes. BPM replaces those sketchy flowchart diagrams that business analysts draw on whiteboards with a precise model that uses standard graphical and XML representations, and an architecture that allows it converse with other services, systems, and users.
標(biāo)簽： Essential Paperback Business Modeling
上傳時(shí)間： 2015-10-21
上傳用戶：zhangyigenius
Web technology is not evolving in comfortable and incremental steps, but i s turbulent, erratic, and often rather uncomfortable. It is estimated that the Internet, arguably the most important part of the new technological environment, has expanded by about 2000 ％ and that is doubling in size every six to ten months. In recent years, the advance in computer and web technologies and the decrease in their cost have expanded the means available to collect and store data. As an intermediate consequence, the amount of information (Meaningful data) stored has been increasing at a very fast pace.
標(biāo)簽： comfortable incremental technology and
上傳時(shí)間： 2015-11-05
上傳用戶：Shaikh
單片機(jī)RS232/RS485串行發(fā)送實(shí)驗(yàn)（雙機(jī)通訊）。 實(shí)驗(yàn)步驟： （1），準(zhǔn)備兩臺(tái)598K實(shí)驗(yàn)機(jī)，確定1號(hào)機(jī)為發(fā)送，2號(hào)機(jī)為接收； （2），當(dāng)作RS232接口實(shí)驗(yàn)時(shí)，1號(hào)機(jī)和2號(hào)機(jī)的P3.0和P3.1交叉相連，且兩機(jī)共地； （3），當(dāng)作RS485接口實(shí)驗(yàn)時(shí)，1號(hào)機(jī)和2號(hào)機(jī)的A、B作對(duì)應(yīng)連接，同時(shí)1,2號(hào)機(jī)的R/ten接P1.0, P3.0接R0, P3.1接DI。 （4），先運(yùn)行2號(hào)機(jī)，鍵入[27]-->[EV]使2號(hào)機(jī)處于接收狀態(tài)P。，后運(yùn)行1號(hào)機(jī)[26]-->[EV]使1號(hào)機(jī)處于發(fā)送狀態(tài),P。會(huì)閃爍，在1號(hào)機(jī)鍵盤上按動(dòng)數(shù)字鍵，在2號(hào)機(jī)的數(shù)碼管上應(yīng)顯示對(duì)應(yīng)的數(shù)字鍵值。
標(biāo)簽： RS 232 485 實(shí)驗(yàn)
上傳時(shí)間： 2015-11-27
上傳用戶：thinode
Boost provides free peer-reviewed portable C++ source libraries. We emphasize libraries that work well with the C++ Standard Library. Boost libraries are intended to be widely useful, and usable across a broad spectrum of applications. The Boost license encourages both commercial and non-commercial use. We aim to establish "existing practice" and provide reference implementations so that Boost libraries are suitable for eventual standardization. ten Boost libraries are already included in the C++ Standards Committee s Library Technical Report (TR1) as a step toward becoming part of a future C++ Standard. More Boost libraries are proposed for the upcoming TR2. Boost works on almost any modern operating system, including UNIX and Windows variants. Follow the Getting Started Guide to download and install Boost. Popular Linux and Unix distributions such as Fedora, Debian, and NetBSD include pre-built Boost packages. Boost may also already be available on your organization s internal web server.
標(biāo)簽： libraries peer-reviewed emphasize provides
上傳時(shí)間： 2016-12-05
上傳用戶：semi1981
This short paper will give you some VHDL code examples that will help you design synchronous circuits that work first time.The philosophy behind ten-Commandment code is that synthesizers are not to be trusted too much. Most of the code you will see is close to the structural level some more overtly than others.
標(biāo)簽： will synchronous you examples
上傳時(shí)間： 2014-12-01
上傳用戶：sjyy1001
2017 pjm資料，每十分鐘獲取一次，可以看看
標(biāo)簽： ace-ten-minute-data-ferc 2017 784
上傳時(shí)間： 2018-12-09
上傳用戶：jyyp
蟲蟲下載站版權(quán)所有 京ICP備2021023401號(hào)-1
