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In the last new years , as the demands of wireless communication system grows rapidly , the bands of microwave frequency had been saturated with various communication applications . To achieve wider spectrum for high-speed and high-capacity transmission , bands of millimeter-wave frequency are the solution of this problem . The advantage of MMW wireless communication systems is wider bandwidth comparing with microwave communication systems . To utilize the spectrum efficiently , many methods of complexly digital modulation is proposed . The more complex modulation , the higher linearity is required , and more various phase of signals are required to accomplish process of modulation . Therefore high-linearity and quadrature-phase modulator and demodulator are the emphasis of this thesis . For high level of integration , high performance and low cost , this chip is fabricated by the complementary oxide semi-conductor 0.13um process . A compact size of direct down-conversion and direct up conversion circuits will be presented in this thesis .

近年来随著无线通讯产业的蓬勃发展，微波频带已经趋近於饱和，为了追求更宽的频谱来达到更快传输速率及高资料容量的传输，宽频的毫米波频段提供了解决此问题的途径，毫米波无线通讯系统提供了相对於微波通讯系统宽频的优点，且为了更有效的使用频谱，各种不同且复杂的数位调变方式及方法被发表出来，越复杂的调变方式其所需的线性度越高，且需要更多不同的相位讯号来完成调变的过程，因此高线性度及四相位的调变及解调器将是此篇论文的研究重点，为了达到高整合性，高效能，及低成本的电路设计，我门利用互补式金氧半导体制程来完成此电路设计，因此一小面积的直接降频(Direct down-conversion)及直接升频(direct up-conversion)电路将在文中介绍。

The music can melt the human body, spirit and affection three put together, music can deeply into consciousness inside that arrive people, attain writing and touch a level for can't attainings.

音乐可以把人类的肉体、精神以及感情三者融合起来，音乐可以透入到人们的意识中，达到文字及触觉所不能达到的水平。

By the time he joined Guangdong's professional Chinese Basketball Associationterm last year, he was an astonishing 6ft-11ins---and he could leap and touch a spot more than 11ft-6ins off the ground.

他后来加盟中国篮球联合会的广东队，当时的身高已经达到惊人的2.11米，模高达到3.51米，而篮圈只有3.05米高。

He also shot 44 percent from the field and 81.5 percent from the free throw line.

他的投篮命中率达到44%，罚球命中率达到81.5%。

The best accuracy, in two-class problem, can be as high as 79.0%, and in three-class problem, can be as high as 67.5%. These results show that the support vector machine is an effective method in the prediction of protein solvent accessibility.

其中，对两类数据的最优分类结果达到79.0%，对三类数据的最优分类结果达到67.5%，表明支持向量机是蛋白残基可溶性预测的一种有效方法。

During the fire-resistant test, the glass can keep integrity for 90 minutes under 800℃, which reach the national criterion.

在耐火实验中，在800℃温度下玻璃耐火时间达到90分钟，达到国家防火玻璃标准

The beneficial rate of the water renovation in the rural areas in the whole country is at 91.0% and the beneficial rate of the tap water is 55.1%.

全国农村改水受益率累计达到91.0%，饮用自来水受益率达到55.1%。

First of all,a family name, also contains the meaning of victory, for example: the Arc de Triomphe and naturalization said overcoming difficulty and return safely; McNair, Reading jié, is prompt and has the mean of victory; For example, the swift-footed: Agile analogy action, first achieve their goals; A shortcut is that it can quickly find methods or means to achieve their purposes; all of which Kay and McNair imply that in China you will be quickly and successfully integrated into China, and the tasks here will be completed very easily and smoothly.

汉文凯，读kǎi。首先是一个姓，，还有含有胜利的意思，比如：凯旋而归，表示战胜归来；捷，读jié；有快的意思；还有获得胜利之意；比如，捷足先登：比喻行动敏捷，先达到目的；捷径，指能很快的找到达到目的的方法或手段；其中都暗示着你将在中国一帆风顺，很快的融入中国，并且在我们这里做事很容易顺利完成。

Along with increase of infecting area and diseased plant rate year after year, the harm of rice stripe blight reached peak in 2005 and resulted in serious rice yield reduction. Yield of Wuyujing series cultivars was reduced about the 50 percent and there was almost no any output in some farmland.

发病面积逐年上升和发病率逐年提高。2005年更是达到发生危害的高峰，造成水稻严重减产，武育粳产量损失达到50％左右，严重田块几乎绝收。

Zhang Min:"TrumpJet" technology sets the dosing point of wet end chemical additives at the outlet pipe of machine screen of the head-box, and uses Booster pump to extract stock as dilution media, and uses "TrumpJet" mixing to inject chemical additives into Headbox loop, which dexterously uses energy of stock in Headbox pipelines, making a very low power consumption in Booster pump (only requires the energy of speeding up for chemical additives flow), eliminating large volume of chemical additives for fresh water dilution, and chemical additives and stock can be fully mixed within 2 seconds, and delivered to model for shaping at the maximum of chemical additives efficiency.

在数千年的造纸发展史上，传统的湿部化学品的加入和混合一直是利用加后稀释水的方法通过静态在线混合器来完成的，由于湿部化学品的加入量很小，，其流量仅为 0.1~1升/秒甚至更小，而要将如此之小的流量加入到纸机流浆箱300 ~2000 升/秒的工艺系统浆料流体中，同时达到化学品与造纸纤维均匀接触，即使是消耗大量的清水和使用在线混合器也很难达到&完全&且&有效&地混合，于是就又产生了将化学品的加入点，提前到远离流浆箱的工艺位置，这样可以延长混合时间，但人们忽略了在过早加入化学品的同时也带来了化学品的流失、化学品在短循环系统循环产生有害副产物生成浆管悬挂、化学品水解失效等一系列弊病。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。