查询词典 DMA

It consists of same three sets of acquisitive circuits,which construct O-shaped structure to sample the signals without drop .And it adopts threshold judging method to determine the valid data in the process of the acquisition,abandons vast of the redundant useless data at the same time,it only sends the useful data to the host computer by the way of DMA,so it is easy to processing the data.The design is concise and reliable.

但这本身也是一对矛盾，因为随着采集速度的提高，单位时间内采集的信号数据也就越多，而一般的采集卡在采集一定数量的数据后，总的需要一定的时间向主机内存传送数据，而在这段时间内是不能采集数据的，作为随机信号，如果在此时间内到来，则会造成信号的丢失。

Until memory stick dma code is reversed, it is impossible the implementation on psp phat.

除非记忆棒的直接存取代码被破解，不然在老P上始终无法实现。

The method is applied to study on loss factor of cocured composites with an interleaved viscoelastic damping layer under a harmonic excitation. The good agreement between the analysis result and the result using DMA indicates that the method proposed is valid.

分析结果与动态机械分析仪实测结果基本吻合，从而验证了本文建立方法的有效性，对粘弹阻尼结构的损耗因子的分析以及共固化复合材料粘弹阻尼结构的设计和应用具有一定的参考价值。

The authors calculated the fragility parameters of the samples based on the time-temperature superposition principle of dynamic mechanical performance and the constants C1 and C2 of the WLF equation.

利用DMA研究了天然橡胶及其改性物的低温动态力学性能，测定了样品的动态力学性能参数，并应用动态力学性能的时温叠加原理，由WLF方程的常数C1和C2进一步计算出材料的脆性参数。

Then, we take forward to the Distributed Merging Algorithm, a hierarchical structure to discover the stream synopsies from all leaves to root node, through setting the precision gradient to optimize the communication load and overhead of distributed system.

并提出了基于Lossy Counting算法的、分布式的合并算法DMA的一种分层结构来发现从叶子结点直至根结点的概要结构，并通过设置精确梯度使网络数量最小及数据中心和网络链接所消耗的计算资源最小来优化分布式系统的通信负载。

The CP15,CP15/60 and CP23 on the sporozoites of Cryptoporidium parvum are major surface protein which are studied in the new pattern vaccine and developed a serologic detection method for cryptosporidiosis.In the experiment,prokaryotic and eukaryotic expression vectors of three genes were constructed by recombinant DMA technique and expressed in E.coli and Hela cells respectively.

微小隐拘于虫（pSporndum pMum，Cp）子抱于表面蛋白 CP15、CP15／60和CP23是微小隐抱子虫主要的表面抗原，它们既是人们研究隐抱于虫新型疫苗的主要对象，也是建立隐抱子虫血清学检测方法的首选抗原。

In the first part of this thesis, Stress relaxation method set up in the software of DMA was used to perform the aromatic and aliphalic (D2192-BAPP) PI film stretching process. To study the optical anisotropies property to the light leakage from the crossed polarizers, we put the stretched samples into one set of crossed polarizers and as expected, the stretched PI films could reduce the light leakage at view angle of ±45 deg, and exhibited a visually observed compensating property of an A-plate. No color shift wasobserved, and the birefringence was very uniform. These results prove a uniform birefringence can be obtained by a stretched process for PI films.

首先，我们以动态机械分析仪的应力缓和模式对芳香族FDA-BAPP PI及脂肪族D2192-BAPP PI薄膜进行拉伸实验，并将拉伸后的PI薄膜置於一组相互交差的偏光片中观察其光学异向性，发现拉伸后的PI薄膜试片可以降低在±45o视角的漏光的效果，展现出如同A-Plate的光学补偿特性，所显现的光学补偿效果相当的均匀而且没有色偏的情形发生，证实以拉伸方法可以造成PI薄膜很均匀的双折射效应。

Making use of the powerful capabilities of the PCI chip, high-speed data of the DSP platform are transferred both ways at DMA mode, and low speed data such as initialization and configuration information are transf...

此外，本文还介绍了DSP平台的硬件实现及平台电路板制作的经验。利用FPGA的灵活性，本平台可灵活的添加图像处理功能，对于一些需要经常进行特殊图像处理的研究型单位进行教学、研究具有一定的意义。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。