When a program need to paint, it must obtain a handle to a device context.

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When a program needs to paint, it must first obtain a handle to a device context.

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The analysis of the optical signal transmission characteristics and the physical parameters provides the theoretical foundation for optimizing the design and improving the performance of AWG; and the optimizing design numerical value calculation method solves the complex problem of the optimizing design of the AWG, it can also provide a way for AWG computer aided design system; the AWG optical signal processing analysis provide a way for optical signal Fourier transform, serial and parallel transmission, circle shift, matrix transform and differential processing; the optical signal processing characteristics of AWG develop AWG to use for new field, and the optical signal processing will play an important role on all-optical networks in the future; by the definition of the wavelength transform matrix of the AWG, the signal output positions that come from these input signals of the different wavelength or the same wavelength but the different input ports and carrying different signals can be accurately determined, and the wavelength transmission matrix plays an important role for analyzing the routing of the complex optical network, or designing the network nodes such as the optical path add/drop multiplexer and optical cross connect device; the wavelength transmission matrix also provides a method for monitoring and managing the wavelength transmission of the optical network nodes; e analysis of the AWG' OXC node structure and wavelength routing provides a way for realizing the OXC, especially for multi-path/multi-wavelength OXC and the intelligence node of the optical networks; by the studying of the control plain characteristics, router, traffic engineering, program and the improved arithmetic of the wavelength routing, the method for realizing the GMPLS' OXC optical transport network is provided, and it play an important role for the study of the automatic switched optical network; the time-frequency analysis can provide more information about the dispersion and energy changes of .the pulsed light transmission in the singlemode fiber, it also provides more useful parameters for analyzing the dispersive accumulating and dispersive compensating.

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The capability of a system, program, or device to perform the functions for which it is designed.

系統(tǒng)十次啦国产精品91、程序或設備完成設計功能的能力。

All this is possible through the use of these specialized peripheral device plus the supporting software of program to control them.

所有這些在使用這些專用外圍設備加上控制他們適當支持軟件時是可能的久久久久一级无码免费视频。

However, along with the rapid development of embedded system and improvement of industrialization, the new situation has put forward stricter requirement for embedded system and it is mainly embodied in the expansibility of embedded system, organization and storage way of program and data as well as the management ability on peripheral device and so on.

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Computer science a program that determines how a computer will communicate with a peripheral device.

決定計算機如何同外部設備進行交流的程序。

Development program of the pc, input/output interface circuits and LSI peripheral device etc.

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The most parts of thesis as follows:1. Five symmetrical intra-molecular charge transfer oligomeric phenylene vinylene light emitting materials were designed and synthesized using oligomeric phenylene vinylene as a framework.2. The structures of target molecule were characterized by ~1HNMR,~(13)CNMR, IR, MS and element analysis.3. In order to study the influence of the location and numbers of electron-donor and electron-acceptor on their photoelectric performance by changing length of OPV chain, the UV spectra and fluorescence spectra of target compounds has been compared. We have researched into main factors effecting on material emitting red-shift; organic electroluminescence device was prepared using the compound P4. The capability of eletroluminescence was researched.4. The photoelectric properties of P4 was explained by quantum chemical calculation (the Gaussian 98 quantum chemistry program). It is greatly contributed know the whole process of charge transfer to guide the design of red emitters.

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A portable application is a computer program that you can carry around with you on a portable device and use on any Windows computer.

便攜式應用程序是一種計算機程序日韩乱码无码中文视频，你可以隨身攜帶約在便攜式設備和在任何Windows計算機上使用。