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The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

In order to discuss the rationality of various warping displacement modes, second-degree parabola, cubic parabola, fourth-degree parabola and cosine function are selected respectively. It has been demonstrated that these displacement modes have limitation to some extent, and a more reasonable mode needs to be developed.

为了探讨各种剪滞翘曲位移模式的合理性，分别选取二次抛物线、三次抛物线、四次抛物线及余弦函数等翘曲位移模式进行计算；结果表明，这些翘曲位移模式在一定程度上均存在不足，目前还缺乏一种更加合理的位移模式。

Empirical evidence in this paper shows that the price of A shares in Shanghai and Shenzhen Stock market is inconstant with the random walk model, and that low-dimension deterministic chaos process are found in the time series of Shanghai A shares index with a Correlation Dimension of 1.4, which means that the degree of randomness is lower than that of grown-up capital markets, and so the lower of the efficiency degree to some extent.

本论文所做的实证研究表明，沪深A股市场价格并不呈随机行走状态，而是存在非线性结构；上海A股市场指数收益率序列存在低维确定性混沌过程，其维数大约为1.4，这一数值远低于成熟资本市场的指标，这表明上海股票市场指数收益率序列随机性低于成熟资本市场。

The index system was first set up, which reflected the economy, society, resources and environment conditions in the district. Then, factorization method was employed by using the software SPSS to obtain comprehensive index numbers. The linear regression method and fuzzy mathematics method were used to compute the coordination degree of economy, society, resources and environment. Finally, on the basis of the status of comprehensive evaluation indexes and coordination degree of the district, the main problems in the sustainable development of Beibei District were found out and some suggestions were also proposed.

为将北碚建设成为国家可持续发展示范区，探讨有北碚特色的可持续发展模式，首先建立反映北碚区经济、社会和资源环境发展状况的指标体系；在此基础上，利用SPSS软件对数据进行因子分析，得到三大体系的综合评价指数；将综合评价指数代入eview软件选择适合的回归方程，再利用模糊数学的方法，计算出成立试验区以来北碚的经济、社会和资源环境的协调发展度；最后在综合评价指数和协调度的基础上，发现北碚区协调发展的主要问题并给出建议。

In this paper the study on optimizing the esterification of cellulose and some character of CAB(the degree of substitution of cellulose, solubility, the thermal properties and molecular weight) was discussed. The mechanism of the esterification of cellulose in butyric acid/ acetic acid/ butyric anhydride which comprises the creation of the acetic butyric anhydride, acetyl cation and butyryl cation was investigated by the study of the effect of the content of the organic acid and anhydride on the degree of acetyl and butyryl substitution of cellulose.

最后本文根据纤维素在丁酸/乙酸/丁酸酐中的酯化反应中有机酸以及酸酐的添加量对最后产物纤维素醋酸丁酸酯中乙酯或者丁酯取代度的影响，提出纤维素在丁酸/乙酸/丁酸酐中的酯化反应经历一个混和酸酐以及乙酰碳正离子、丁酰碳正离子的生成过程。

After administration of L-N〓-nitro-Arginine, a specific antagonist of NOS, it was found that the basal and stimulated NO release of blood vessels (aorta, internal carotid, renal and mensenteric artery) was decreased further. The increase of coronary blood flow stimulated by Ach was also reduced further, while the platelet aggregation degree and erythrocyte aggregation index increased significantly. Pathological examination indicated that aortic endothelium was destroyed, the blood vessels in cerebral, cardiac and renal tissues were hypertrophied further and some were almost occluded. The above fin dings resulted in SHR feeded with L-NNA having high incidence of stroke rate and high degree of renal cirrhosis when compared to control SHR. The infarct and hemorrhagic focuci in cerebral tissues, infarct focuci in cardiac tissues, atrophy and hyalinedegeneration of renal glomeruli and degeneration even necrosis of renal tubuli in renal tissues were al so found. The increase ratio of brain and heart to body weight and decrease ratio of kidney to body wei ght further demonstrated that the cerebral, cardiac and renal injuries were aggravated.

在上述结果的基础上进一步给予SHR NOS特异性拮抗剂左旋亚硝基精氨酸后，血管(胸主、颈内、肾及肠系膜动脉)NO基础释放及激动剂刺激释放进一步减少，Ach刺激冠脉流量的增加和胸主动脉内膜NOS活性也进一步减少，血小板聚集程度及红细胞聚集指数显著上升，病理切片显示胸主动脉内皮细胞破坏明显，脑心肾组织内的血管进一步增厚甚至几乎阻塞，导致饲L-NNA的SHR缺血性及出血性脑卒中发生率显著高于对照SHR，脑体重比显著升高；心肌内出现明显的缺血梗塞疤痕灶，心体重比显著升高；肾小球明显萎缩、玻璃样变性，肾小管也变性甚至坏死，使肾硬化程度显著增加呈颗粒性固缩肾，肾体重比也显著减少。

This paper focused enterprises make certain to choose which type of technological transformation by analyze industry cluster degree, which technological life cycle technology in, and market saturation degree, and then, with cooperating between the imputed one and outputted one, succeed on transfer the obvious and latent information, made some factors like Human resources, organization and technological base recombine to impulse technological level and learning capacity expand forward, and then this will make enterprises technology ability develops by this way: the first step is striped-down only with throughput, and the second is technology absorptive capacity, and the highest is innovate undependably.

论文经过分析认为，企业通过分析原有技术能力所处阶段、技术势差、产业集中程度、技术所处生命周期和市场饱和程度来确定采用何种方式进行技术转移，通过供需双方的合作，成功转移所需的显性知识和隐性知识，使得企业技术能力中的人力资源、组织、技术基础等因素中某一因素大幅度提高或四因素均衡发展，重组整合，推动企业的技术水平和技术学习能力不断向更高层次发展，从而使得企业技术能力从拥有简单生产能力的仿制阶段过渡到技术同化阶段，并最终发展到自主创新阶段。

5Oil and gas were controlled by the structure formed by superposition of tectonic movement in the early and late Hercynian which resulted in palaeogeomorphology and degree of fracture growing. The latter decided the flowing direction of palaeocurrent and the degree of corrosion,which is the main factors of karstification.Especially,the superimposition of palaeostructure and Akekule uplift is the most favorable area for karst and fracture growing.The ubiquitous high angle fracture made all kinds of vugs into a large scale storage,so the fracture-vug system was divided into some blocks in the main oil zone on the plane.

5塔河油田的油气分布受控于海西早、晚期构造运动叠加形成的构造格架，古构造叠加的结果控制了古地貌和裂缝发育强度，古地貌和裂缝发育强度控制了古水系的流动方向及溶蚀深度，它们是岩溶作用发育的主控因素，特别是海西晚期形成的古构造与阿克库勒凸起轴部的叠合部位是岩溶、裂缝最发育的地区，普遍存在的高角度裂缝在三维空间将各类岩溶孔洞连通为大规模的储集体，从而造成主油区大型缝洞系统横向上的分区性。

The results are as follows: 1 great changes have taken place in land use and landscape pattern from 1995 to 2000; the area of woodland, water and unused land has been reduced and that of grassland, cropland and construction land increased; 2 the advance of fractal dimensions, the diversity index and landscape fragmentation degree showed that landscape units became strongly fragmented; 3 the dominant degree of construction and unused land has changed little but that of meadow and water increased, and that of farmland and woodland decreased to some extent, which indicated that the trend of landscape pattern changed from cropland and woodland to meadow and water; 4 the changes of land use and landscape patterns near the road are obvious and it is urgent to strengthen eco_environment protection.

主要结果如下：①1995-2000年间，研究区土地利用变化显著，其中林地、水域和未利用土地面积下降，而草地、耕地和建设用地面积增加；②景观破碎化程度加剧，分维数、多样性指数和景观破碎度均增加；③建设用地和未利用土地优势度变化不大，耕地和林地的优势度减小，草地和水域优势度增加，表明研究区景观格局由耕地、林地向草地和水域转变；④交通干线附近的土地利用和景观格局变化显著，加强这些区域的生态环境保护与建设势在必行。

And is improved; Water cooking method go on adherence test indicate to asphalt mixture, the viscosity rises to 4 or 5 from 3 or 4; The equivalent of changing the pitch of modified asphalt some, the needle enters one degree of findings in high- temperature performance , such as index ,etc., the high-temperature performance of changing the pitch of silicon is improved to some extent; Indicate that the mobility of the modified pitch is diminished in glueing the research of playing the index ; Oppose water damage research of ability indicate , resist water damage ability raise to some extent.

按标准对沥青混合料进行配级后，用马歇尔实验确定了12%由擦洗法提纯的露水河硅藻土改性沥青混合料的最佳沥青用量为4.5%，用硅藻土改性沥青改性效果较好，可用做公路沥青路面的改性材料。硅藻土改性剂与沥青在强制搅拌过程中，没有发生明显的化学变化，主要是物相之间的分散、均混、吸附和交联，所以主要是物理意义上的共容，因此是否共容，混匀至关重要，只有改性剂微粒能均匀稳定的分散在沥青中不发生分层、凝聚和离析，才能达到理想的改性效果。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。