this is ram both asynchronous and synchronous reset signals which is basic for any registers and basic memory elEMent
標簽： asynchronous synchronous and registers
上傳時間： 2017-04-23
上傳用戶：cc1915
本手冊針對的是已有一定網(wǎng)頁設計制作經(jīng)驗的讀者。其目的是提供最新最全的樣式表內(nèi)容的快速索引及注釋。所以對于樣式表的基礎知識，在此僅簡單介紹，恕不贅述。 本手冊的升級信息與版權聲明請參閱關于本書頁面。本手冊中專用詞匯請參閱中英文詞匯對照表。 限于篇幅，對于一些過于繁雜的相關內(nèi)容，如動態(tài)樣式屬性（Dynamic Properties），濾鏡（Filters），行為（Behaviors）請參閱我的其它相關著作。 本書中涉及到的所有HTML對象（Object，elEMent），HTML特性（Attributes）和屬性（Properties）請參閱我的相關著作。
標簽： 樣式表 基礎知識 網(wǎng)頁設計
上傳時間： 2017-04-26
上傳用戶：xaijhqx
Introduction To CSS2樣式表簡介 本手冊針對的是已有一定網(wǎng)頁設計制作經(jīng)驗的讀者。其目的是提供最新最全的樣式表內(nèi)容的快速索引及注釋。所以對于樣式表的基礎知識，在此僅簡單介紹，恕不贅述。 本手冊的升級信息與版權聲明請參閱關于本書頁面。本手冊中專用詞匯請參閱中英文詞匯對照表。 限于篇幅，對于一些過于繁雜的相關內(nèi)容，如動態(tài)樣式屬性（Dynamic Properties），濾鏡（Filters），行為（Behaviors）請參閱我的其它相關著作。 本書中涉及到的所有HTML對象（Object，elEMent），HTML特性（Attributes）和屬性（Properties）請參閱我的相關著作。
標簽： Introduction CSS2 樣式表 To
上傳時間： 2014-01-20
上傳用戶：zhliu007
The code performs a number (ITERS) of iterations of the Bailey s 6-step FFT algorithm (following the ideas in the CMU Task parallel suite). 1.- Generates an input signal vector (dgen) with size n=n1xn2 stored in row major order In this code the size of the input signal is NN=NxN (n=NN, n1=n2=N) 2.- Transpose (tpose) A to have it stored in column major order 3.- Perform independent FFTs on the rows (cffts) 4.- Scale each elEMent of the resulting array by a factor of w[n]**(p*q) 5.- Transpose (tpose) to prepair it for the next step 6.- Perform independent FFTs on the rows (cffts) 7.- Transpose the resulting matrix The code requires nested Parallelism.
標簽： iterations performs Bailey number
上傳時間： 2014-01-05
上傳用戶：libenshu01
Smartphones have become a key elEMent in providing greater user access to the mobile Internet. Many complex applications which used to be limited to PCs, have been developed and operated on smartphones. These applications extend the functionalities of smartphones, making them more convenient for users to be connected. However, they also greatly increase the power consumption of smartphones, making users frustrated with long delays in Web browsing.
標簽： Browsing Mobile Cloud Using Web the
上傳時間： 2020-05-30
上傳用戶：shancjb
In a cellular communication system, a service area or a geographical region is divided into a number of cells, and each cell is served by an infrastructure elEMent called the base station through a radio interface. Management of radio interface related resources is a critical design component in cellular communications.
標簽： Management Resource Radio
上傳時間： 2020-06-01
上傳用戶：shancjb
SCB10H series pressure elEMents are high performance absolute pressure sensors. The sensors are based on Murata's proven capacitive 3D-MEMS technology. They enable exceptional possibility for OEM customers to integrate pressure measurement function in an optimal way into their products. SCB10H series elEMents can be designed to match the application specific pressure range. It is a bare capacitive sensor elEMent that enables optimized application specific package and electronics design.
標簽： 傳感器
上傳時間： 2022-03-03
上傳用戶：
在半導體制冷技術的工作性能及其優(yōu)缺點研究的基礎上,設計了以單片機為核心控制元件,以TEC1-12706為執(zhí)行元件的半導體制冷溫度控制系統(tǒng)。采用高精度分段式PID控制算法配合PWM輸出控制的方法實現(xiàn)溫度控制;選擇數(shù)字傳感器DS18B20為溫度檢測元件,還包含1602液晶顯示模塊、按鍵調(diào)整輸入模塊和H橋驅(qū)動模塊等。實際測試表明,該系統(tǒng)結構簡單易行,操作方便,工作性能優(yōu)良,同時針對該系統(tǒng)專門設計的溫控算法,使半導體制冷器能更好地適應不同工況而充分發(fā)揮其制冷制熱工作特性。Based on the study of the performance and advantages and disadvantages of thermoelectric cooler(TEC)technology,a thermoelectric cooling temperature control system with single-chip microcomputer as the core control elEMent and TEC1-12706 as the executive elEMent was designed. High precision piecewise PID control algorithm combined with PWM output control method is adopted to realize temperature control. The digital sensor DS18B20 is selected as the temperature detection elEMent. It also includes 1602 LCD module,key adjustment input module and H bridge drive module. The actual test shows that the system has simple structure,convenient operation and excellent performance. Meanwhile,the temperature control algorithm specially designed for the system can make the semiconductor cooler better adapt to different working conditions and give full play to its refrigeration and heating characteristics.
標簽： 半導體 溫度控制系統(tǒng)
上傳時間： 2022-03-27
上傳用戶：
低壓差線性穩(wěn)壓器（Low Dropout Voltage Regulator，LDO）屬于線性穩(wěn)壓器的一種，但由于其壓差較低，相對于一般線性穩(wěn)壓器而言具有較高的轉(zhuǎn)換效率。但在電路穩(wěn)定性上有所下降，而且LDO有著較高的輸出電阻，使得輸出極點的位置會隨著負載情況有很大關系。因此需要對LDO進行頻率補償來滿足其環(huán)路穩(wěn)定性要求。內(nèi)容安排上第一節(jié)首先簡單介紹各種線性穩(wěn)壓源的區(qū)別：第二節(jié)介紹LDO中的主要參數(shù)及設計中需要考慮折中的一些問題；第三節(jié)對LDO開環(huán)電路的三個模塊，運放模塊，PMOS模塊和反饋模塊進行簡化的小信號分析，得出其傳輸函數(shù)并判斷其零極點：第四節(jié)針對前面分析的三個LDO環(huán)路模塊分別進行補償考慮，并結合RT9193電路對三種補償方法進行了仿真驗證和解釋說明。該電路主要包含基準電路以及相關啟動電路，保護電路（OTP，OCP等），誤差放大器，調(diào)整管（Pass elEMent）和電阻反饋網(wǎng)絡。在電路上，通過連接到誤差放大器反相輸入端的分壓電阻對輸出電壓進行采樣，誤差放大器的同相輸入端連接到一個基準電壓（Bandgap Reference），誤差放大器會使得兩個輸入端電壓基本相等，因此，可以通過控制調(diào)整管輸出足夠的負載電流以保證輸出電壓穩(wěn)定。電路所采用的調(diào)整管不同，其Dropout電壓不同。以前大多使用三極管來作為穩(wěn)壓源的調(diào)整管，常見的有NPN穩(wěn)壓源，PNP穩(wěn)壓源（LDO），準LDO穩(wěn)壓源，其調(diào)整管如圖2所示，其Dorpout電壓分別是：VoRop=2VBE+ Vsr-NPN穩(wěn)壓源VoRоP =VsurPNP穩(wěn)壓源（LDO）VDRoP=VE + Vsur-準LDO穩(wěn)壓源
標簽： ldo 環(huán)路分析
上傳時間： 2022-06-19
上傳用戶：
Simulation can provide a lot of information about what the system is doing. We canadd the effect of different elEMent, like Encoder resolution, ADC sampling rate, etc and understand how does it affect the system. Another benefit is the possibility to slow down the process, to gain insight on what happens of fast systems or, vice versa, speed up slow process.Because National Instruments is a unique company in the fact the we provide a fullhardware solution couple with a full development platform, we can use this tools in very particular ways For example, it is possible to combine the LabVIEW Control Design and Simulation Module along with the FPGA module to quickly prototype a controller. One of the main benefits of this approach is that there is no need to compile the FPGA code, which allows for a quick algorithm design turnaround and debugging.
標簽： pid控制
上傳時間： 2022-07-20
上傳用戶：
