取得平衡

Starting from Master Lin Fengmian, generations of outstanding Chinese artists have, in their inquiries of modern Chinese painting for almost a century, been trying to ingeniously merge the oriental art traditions with the modern western approaches, especially the abstractionism, or to balance the two heritages in a personal fashion so as to achieve a genuine breakthrough in the language of painting. This paradigm came into being in the later half of the century and new masters have been on the rise.

近一个世纪以来，在中国现代绘画的探索中，自林枫眠始，几代中国艺术家的佼佼者一直在试图将东方传统与西方的现代，尤其抽象表现艺术进行了巧妙的结合，或者说是以个人的方式平衡了这两种因素，从而在绘画语言上取得真正的突破，这个框架在此后的半个世纪间已经构成，并出现大家。

Through ground test and hypersonic flow research, he made great progress in air-breathing hypersonic technology.

通过地面试验和高超声速非平衡流的研究，取得了再入突防气动物理的重要进展。

Main contributions and achievements are as follows:A general non-equilibrium rigorous model for RDP is developed in this thesis. Based on the pseudo-homogenous assumption, two main factors reaction and separation are de-coupled, and an RDP model with the same format as that for a traditional distillation process is established. To solve the model with a large number of algebraic equations, modified M-K equations with tri-diagonal matrix form are developed based on the improved Separation Efficiency Functions, which greatly increases the iteration efficiency. This thesis also develops a general reactive distillation dynamic model. Through splitting of the differential variables based on SEFS, large-scaled differential algebraic equations can be solved with the improved Gear's algorithm which makes the dynamic model suitable for the on-line application. A simulation platform for the control loop design and evaluation of RDP by introducing control system equations into the dynamic model is also developed.A lactic acid purification pilot-scale RDP is investigated.

论文对热点问题——反应精馏过程的建模与优化控制相关技术进行了深入的研究，取得了一系列成果：1、建立了反应精馏过程机理模型，基于拟均相假设，将反应和分离过程进行解耦，推导出反应精馏过程的非平衡级稳态模型和动态模型，通过引入推广的分离效率函数，对模型变量进行了合理划分，显著提高了模型求解效率；将动态模型和控制系统方程结合，建立了反应精馏过程控制系统研究的辅助工具。2、全面分析了乳酸提纯反应精馏新工艺试验装置，利用本文建立的过程机理模型，对该试验装置进行了稳态和动态性能分析及水力学核算；设计和分析了单边质量控制方案，比较了间接和直接物料平衡控制两种方案的控制性能。

In order to achieve load balance in task scheduling under the grid environment, in view of the resources' autonomy, isomerism and distribution under this circumstance, a model of resources real-time prediction was designed based on improved GM (1, 1) prediction method, which could get satisfied load balance with smaller expenditure.

为了达到网格环境下任务调度时的负载平衡，针对此环境下的资源的自治性、异构性和分布性等特性，利用改进的灰预测模型GM(1，1)预测方法，设计了资源实时预测模型，可在较小的开销下取得满意的负载平衡。

The osmotic coefficients and saturated vapor pressures have been calculated at the different temperatures .The experimental values of the osmotic coefficients for the Li_2SO_4-H_2O system were consistent with the values in the references. The results revealed the rules of the changing in osmotic coefficients and saturated vapor pressures with ion strengths and the molality fractions of Li_2B_4O_7 at different temperatures. The isopiestic equilibrium molalities were correlated by using the modified and the extended Zdanovskii rules for non-ideal mixtures, and obey well the Zdanovskii rules. The ion interaction parameters of Pitzer model have been determined by using the two methods for Li_2SO_4-Li_2B_4O_7-H_2O at 298.15K system.

本文计算了不同温度下该纯盐体系和混合盐体系的渗透系数和饱和蒸汽压，并将298.15K下的纯盐溶液渗透系数的实验值与文献值进行比较，取得了相一致的结果；揭示了不同温度下渗透系数和饱和蒸汽压随离子强度及Li_2B_4O_7质量摩尔浓度分数yb的变化规律；本文用Zdanovskii规则修正式和扩展式关联了298.15K下该混合盐体系的等压平衡浓度之间的关系，计算结果表明用这两个方程可以描述该体系在全浓度范围内的等压平衡浓度间的关系。

By systemic researching and simulating experiment, the text gains such results as follows,1. On the base of sufficiency research on the oil-gas hydrocarbon systemic chemistry composing and the physical chemistry characters, we traverse the mechanism of the paraffin's deposition. Then we consider that paraffin deposition is a complex process ofphysical chemistry, which includes more than one single mechanism.2. Traversing and comparing the literature in detail on different factors that has effect on paraffin deposition, the available experimental methods on paraffin deposition, prevention of paraffin deposition, and removing of the deposited paraffin on the spot.3. Ameliorated the laser equipment of solid particle inspecting system and the corresponding test methods. Determine WCT of dead oil and live oil from KS101 well under different pressure with this system. The result implies that dead oil has opposite regulation on paraffin deposition temperature to live oil.4. A vapor-liquid-solid envelop is drawn by superposition regular vapor-liquid envelop and WCT curve thereby explained that the departure and quick raising of the curve in the low temperature zone is caused by the appearance of paraffin in solid phase.5. Estimation is made to determine the depth of paraffin deposition in the well.

通过系统的研究和实验模拟，本文取得了以下研究成果：(1)在充分调研油气烃类体系的化学组成及其物理化学特征的基础上，详细研究了石蜡沉降的机理，认为石蜡沉积是一个复杂的物理化学过程，是多种机理共同作用的结果；(2)深入调研并综合阐述了影响石蜡固相沉积的各种主要因素，对目前国内外常用的有机固相沉积实验研究方法和现场清防蜡措施也做出详尽的描述，并加以对比评价；(3)改进了油气藏开发重点实验室自行研制组装的高温高压下测定固相沉积的激光装置和测试方法，并用该套设备测定出柯深101井的井口脱气油样和凝析气平衡油样不同压力下的析蜡点，实验结果表明，脱气油和平衡油析蜡规律相反；(4)将常规气-液两相相图和析蜡曲线叠加得到了气—液—固三相相图，从而解释了气-液两相等液量线在低温区域偏离正常并快速上翘是由于体系有石蜡固相出现；(5)利用实验测试的析蜡温度预测析蜡位置，表明只有在距井口465m油管以上会有蜡析出。

These compounds are of substantial interest both inviewpoints of theory and practical applications, mainlyunder the stimulus to achieve synthetic models either foractive sites of iron-sulfur proteins or for transitionmetal catalysts. This thesis describes the synthesis, structures andconformations of 51 new iron-sulfur cluster complexes,which have been characterized by elemental analysis andstandard spectroscopic methods. In addition, single-crystalX-ray diffraction analyses were performed for 4 representa-tive new compounds. Reactivities of μ-〓 with mono- and di- Grig-nard reagents derived intermediates toward various organicelectrophilic substrates were studied, along with complexa-tion of arynyl-containing iron-sulfur clusters by 〓Thus, several bridged, non-bridged, monomeric, dimeric,homonuclear, heteronuclear iron-sullfur and iron-sulfur co-balt-carbon cluster complexes were synthesized. A novelreaction and convenient route for the synthesis in highyield of tetranuclear iron complexes 〓 containing atetracoordinated sulfur atom was discovered, whereas aplausible mechanism based on experimental results was propo-sed for the formation of the new cluster type.

鉴于有机铁硫原子簇化学在基础理论发展和应用方面的重要意义，因此我们开展了这一课题的研究，并取得以下主要成果： 1、本文共合成了51个新有机铁硫及含钴碳簇基的有机铁硫原子簇配合物，除用元素分析，NMR，IR，MS法表征其结构和构象外，还用X-光衍射技术测得四个代表性配合物的单晶结构和构象； 2、我们业已发现炔基Grignard试剂同〓可形成一种&开环&与&闭环&中间物的平衡混合物，研究该平衡混合物同各种亲电试剂的反应； 3、研究发现了一种可高产率地形成〓含〓四配位硫挛合簇的新化学反应并对此反应提出了—种有趣的反应机理； 4、首次由1，4-二溴丁烷双Grignard试剂与〓制得一种新型铁硫簇双硫阴离子活性中间体，并进而研究了它的亲核反应性能； 5、找到了通过〓的光化学反应来合成簇合物〓-〓的一条有实用价值的新路线。

Through once again on the M14-6-X55 to take measures to reduce the balance of the block, the well balanced conservation block 2, balance rate from 60% to 87.5%, saving 28 degree day, the pilot was a success.

通过再次对M14-6-X55采取减少平衡块的措施后，该井节约平衡块2块，平衡率从60%上升到87.5%，日节电28度，试验取得了成功。

This paper presents the fundamental principle of fans′ field dynamic balancing and puts forword ways of fans′dynamic balancing suitable to the real situation at the Sinter Plant.

介绍了风机现场动平衡的基本原理，提出适合烧结厂实际的风机动平衡方法，取得了良好的效果。

This paper presents the fundamental principle of fan s′field dynamic balancing and puts forword ways of fan s′dynamic balancing suitable to the real situation at the Sinter Plant.

介绍了风机现场动平衡的基本原理，提出适合烧结厂实际的风机动平衡方法，取得了良好的效果。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。