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Secondly, according to the construction and characteristic of the N-isopropylacrylamide and the temperature-sensitivity of PNIPA hydrogel, Pdualistic hydrogel was synthesized by microwave low temperature plasma. The effects of the factors on the swelling characteristic of P dualistic hydrogel, such as treatment time and power of plasma, concentrations of crosslinking agent and total monomers, proportion of AMPS, polymerizing temperature etc, was discussed in detail. The three dimensions structure , thermostability , reversional volume , swelling/deswelling kinetics, temperature-sensitivity and pH-sensitivity of the hydrogel were also investigated. The optimal synthesizing technics of P dualistic hydrogel initiated by microwave low temperature plasma was confirmed.
在此基础上,结合NIPA的结构特征和PNIPA的温敏性,用微波低温等离子体引发聚合了P二元智能凝胶,详细探讨了微波低温等离子体处理功率、处理时间、总单体浓度、AMPS单体浓度、交联剂浓度及聚合反应溫度等因素对P二元凝胶溶胀性能的影响;并对其三维交联结构、热稳定性、失水-吸水动力学、温度敏感性、pH敏感性、体积复原性等进行了研究;确定了适合微波低温等离子体引发聚合P二元智能凝胶的最佳工艺。
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In order to do research on pipe flow and pump characteristics of polymer flooding and water flooding rod-pumped well in especially high water-cut stage, rheometric test aimed at production stream from polymer flooding and water flooding rod-pumped well in especially high water-cut stage has been made, and the characteristic of production stream in especially high water-cut stage is confirmed as Newtonian fluid. Experiments using different mediums about pipe flow and pump characteristics is made. Frictional resistance and coefficient of friction resistance of annulus fluid between sucker rod and the pipe flow is calculated under different working conditions. Frictional resistance between plunger and pump barrel under different parameters is calculated based on related theory of pump characteristic and the strained analytical model of oil-well pump. Besides, using the theory of slit flow and hydraulic -clamping pressure, the frictional resistance is calculated, and the error between the result and measured value is no more than 13%.
为研究特高含水期水驱及聚驱抽油机井管流特性与泵特性,本文针对特高含水期水驱及聚驱井采出液进行了流变性试验,确定了特高含水期油井采出液的性质属牛顿流体;利用不同介质,进行管流特性与泵特性试验,得到了不同工况下杆、管环空流的摩擦阻力和摩阻系数;根据泵特性相关理论和抽油泵受力分析模型,计算了不同参数下柱塞与泵筒间的摩擦阻力,并利用缝隙流与液压卡紧力理论对柱塞与泵筒间的摩擦阻力进行了计算,计算结果与实测值误差在13%以内。
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Noise can be reduced by about 2 dB by using oil-resistant rubber isolator to reduce solid-borne sound transmission; the setting-up of semienclosed noise barriers can not only reduce the work region's noise of workshop by 13 dB, but also adapt to the gas's characteristic involved with H2S, CO, and other poisonous components without supplied mandatory ventilation; locating the noise absorbers on the walls and ceiling of workshop can reduce noise by 8 dB; the exhaust silencer's elimination volume can reach above 30 dB which is designed in accordance with the exhaust noise spectrum characteristic of gas-combustion generator. By the combination of these measures, the noise of the gas- combustion generator will be under effective control, so that the gas power plant's noise pollution problems can be resolved.
通过选用耐油性好的橡胶隔振器减少固体传声,可降低噪声约2 dB;设置半封闭式机组隔声屏障可降低生产车间工作区域内的噪声达13 dB,并且适合瓦斯发电气源中含有H2S、CO等有毒有害气体的特点,不需增加强制通风措施;在生产车间四周墙壁和顶棚上敷设吸声体,最大可降低空间噪声8 dB;根据瓦斯发电机排烟噪声频谱特性设计的阻抗复合式消音器的消音量可以达到30 dB以上。
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Explicitly, they are consist of three classes: If H is semisimple, then H k* for some finite group; If H is not semisimple and the characteristic of k is zero, then H is isomorphic the dual of the cross product between one so called Andruskiewitsch-Schneider algebra and a group algebra; If H is not semisimple and the characteristic of k is not zero, then H is isomorphic the dual of the cross product between one special algebra and a group algebra.
具体地讲,它们共(来源:5fbfA02BC论文网www.abclunwen.com)分三类:①如果H是半单的,则H同构与一个群代数的对偶;②如果H是非半单的并且基础域的特征是0的话,则H同构一个所谓Andruskiewitsch-Schneider代数与一个群代数交差积的对偶;③如果H是非半单的并且基础域的特征不是0的话,则H同构于某个特定代数与一个群代数交差积的对偶。
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The paper sees Horton code as a primary characteristic value and generalizing condition of the river network, and selects, simplifies and generalizes river based on scale of before and after generalization,, The main contents of paper include:(1)Reviews generalization concept, arithmetic operators, methods, influence factor and frame of map generalization and design, analyze core theory of feature —oriented map generalization, discuss the main context and applicable method of river feature generalization(2) Summarizes natural form and spatial configuration characteristic of the river network, and describe the river network using digraph Paper mostly researches tree —like river, identifies the direction of river based on the angle of the main and secondary reach, and identifies the main river based on most length and predominant continuation of the flow direction along the major channel , then receives the grade of river by recursion and structuralize river network, builds hiberarchy rank system of river based on Horton coding(3)Designs the model of river network based on Horton code, and organizes the data of node, branch and river.
本论文把Horton编码作为水系网的一个主要特征值并以此作为综合条件,并根据综合前后的比例尺对水系网进行选取、化简和概括。论文的主要工作包括:(1)总结地图综合的概念、算子分解、实现方法、主要影响因素和总体设计框架,分析面向地理特征的制图综合的核心理论支撑,在此基础上讨论水系专题要素综合的主要内容和综合适用的方法。(2)总结水系网的自然形态和空间结构特征,用图论对水系网进行描述。以树状水系作为主要研究对象,依据树状水系的主支流交汇关系确定水系流向,依据水系中主流的长度最长和主流保持原有的流向趋势确定主流,按此递归得到河流的不同级别,对基于河段组织的水系网结构化,自动建立水系的Horton编码。(3)设计基于Horton码的水系网模型,对结点、河段、河流和河系的数据进行有效的组织。
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The generating reason,response characteristic and distributing rule of remaining oil was deeply studied aiming at water-flooded continental reservoir with characteristic of intense heterogeneity,high water-cut,low recovery efficiency,complex distributing rule of mobile remaining oil,intergrowth of major and untabulated formation . At the same time,a systemic method of evaluation and predicating remaining oil and pressure was put forward basing on the theory of development geology,seepage flow mechanics,fluid mechanics which resolved the hard technologic problem of predicting remaining oil and pressure.
本文针对陆相注水开发油藏具有非均质性强、含水率高、原油采收率低、可采剩余油分布复杂、主力产层和表外产层同时存在等特点,深入研究了剩余油的形成机理、响应特征和分布规律,应用开发地质学、渗流力学、流体力学和地质统计学理论,将静态地质数据和动态开发数据相结合,综合现有的与剩余油及压力分布有关的所有资料,提出了一套系统的评价和预测剩余油及压力的方法,较好地解决了目前剩余油与压力评价和预测中的技术难题。
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The geology research of carbonate reservoirs in Ordovician of Tahe oilfield showed that many large dissolved vugs and fractures were developed. The spread of the reservoir take on a very heterogeneous state. And the typical fractured-vuggy reservoirs was formed. According to the combination of the various spaces, the formation was divided into vuggy formation, fractured-vuggy formation and fractured formation. The research showed that development of the vug is relevant to the its position on the structure, the fractures, the water surface and the weathering surface. Multi-phase charge and recharge of the oil in the reservoirs resulted in the complexity of the fluid distribution. So the"Bottle Model"was brought forward to explain the movement of the water-oil contact. The special storage space and the complex fluid distribution lead to the unstability of the production and the complexity of the water cut. In order to explain the characteristic of the fracture-vug unit was brought forward and the basic principle and method of the partition of the fracture-vug unit was formed. The classification and evaluation of the units were performed according the reserve and energy. Based on the research of geology characteristic and the fluid flow in the reservoir the comprehensive numerical simulation plan of the fractured-vuggy reservoirs were established. Through the selection of the simulation unit, fluid flow type and parameter equivalent the triple media reservoir simulation model was established. Considering the practical application the model was resolved by the DKR decomposition conjugate grads method. Based on the fine reservoir description of Dsitrict IV of the Tahe oilfield the various space type were classified and combined together. The geology model of Unit S48 was constructed. Two typical single well model was established according to the geology and the dynamic phenomena. Finally the single well model and the Unit S48 were simulated by the triple media reservoir simulator. Via the local grid refinement and coarsening in the simulation good matchs were gained. Based on the results of the simulation the reserve distribution, percent of reserve produced in various space and the natural energy were analyzed. The fluid was storaged in the fractures and vugs mostly and more than 90% the produced oil came from the systems. The energy belonged to the active one. The results of simulation accorded with the fact and showed the validity and practicability the research and the simulator.
塔河油田奥陶系碳酸盐岩油藏的地质研究表明,其储层中发育着很多大型的溶蚀洞、缝,储层的平面展布呈现出极度的非均质性,形成了典型的缝洞型碳酸盐岩油藏,根据各种孔隙介质在储层中的组合,将储层分为了溶洞型、裂缝-溶洞型和裂缝型三类;研究表明溶洞储层的发育和构造位置、裂缝的发育、潜水面和风化面的位置等因素有关;多期充注的油气成藏模式导致了流体复杂的赋存状态,由此提出了所谓的&瓶子模型&,解释生产过程中油水界面的变化;特殊的储集空间类型和流体分布特征导致油田在开发过程中表现出很大的不确定性和含水变化的复杂性,为了合理的解释油气田开发过程中的动态特征,提出了&缝洞单元&的概念,并制定了&缝洞单元&纵横向划分的基本原则和依据及划分方法,并对&缝洞单元&进行了分类和评价;基于地质特征和流体在其中流动规律的研究,提出了缝洞型碳酸盐岩油藏的数值模拟综合解决方案,通过模拟单元的选择、流动类型和参数的等效,建立了三重介质油藏三维三相数值模拟模型,采用不完全LU分解预处理共轭梯度法进行了求解;在塔河油田4区精细油藏描述的基础上,将各种类型的孔隙空间进行了归类组合,建立了S48单元的地质模型;通过对油井生产动态进行分析研究,建立了两类和油井地质、生产动态相对应的单井模型;最后应用三重介质油藏数值模拟软件对单井模型和S48单元进行了数值模拟,通过局部加密和粗化等技术模拟流体流动规律,取得了很好的拟合效果;结合数值模拟结果,分析了各种介质中的储量分布、储量产出的百分比以及地层的能量,认为塔河油田缝洞型油藏中流体绝大多数储集于缝洞系统之中,所产出流体90%以上也来自于缝洞系统,其底水能量属于较充足的类型;模拟结果和油田实际情况符合较好,说明了地质研究和油藏数值模拟研究的正确性。
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In a great deal of outstanding singing in home outstandingly, sing the method in national vocal music represented by Peng Liyuan, have made outstanding contribution in term of drawing lessons from, inheriting and developing in singing the singing characteristic of technology and traditional singing style of Chinese nationality Westernly, been approved by experts and scholars and the broad masses, and this kind is different from tradition, have singing method of the characteristic of era to influence so far.
在诸多优秀的优秀歌唱家中,以彭丽媛为代表的民族声乐演唱方法,对西洋歌唱技术和中国民族传统唱法的演唱特征从借鉴、继承及发扬的角度均做出了突出的贡献,得到了专家学者和广大群众的认可,并且这种有别于传统、具有时代特点的演唱方法影响至今。
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Responses of Larrea tridentat seed germination to water stres s were studied by means of the artificial simulation method of water stress by using PEG to find out the g ermination characteristic amply and to understand the drought resistance characteristic of L.tridentata roundly.
为了深入了解 Larrea tridentata 的发芽特性,全面掌握 Larrea 的抗旱生理特性,采用PEG溶液人工模拟水分胁迫的方法,研究了 L.tridentata种子萌芽对水分胁迫反应过程。
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The content of each part follow as: In the first chapter, as start point and base of the paper, this part focuses on the basic study ofdefinition characteristic of NO, and the existing base of NO-E-Commerceenvironment; In the second one, this part studies the theory base of NO comprehensively applying the theories of core competence competent strategy and transaction cost; Chapter three studies the NO from the coordination of NO, and gives the structure clarification and characteristic of NO firstly, at the same time, put forward the concept of Virtual Enterprise Cluster; Based on such conclusion, studies the model of NO from life cyc organization level process and value chain, and operational mode; In Chapter four, a theoretical explanation was addressed on the above structure by modeling NO with game theory and graphic theory; In the fifth chapter, on the bases of analysis of NO operational risks, coordination mechanism of NO was studied by individually modeling the NO without core and NO with core, and then put forward the solution for coordination mechanism of NO; As an important component of coordination mechanism of NO, Chapter six explored some basic concept of trust and importantly put forward the way of how to build trust in NO, especially investigated the supporting function of valid reputation mechanism of NO for the trust building, importantly an operational method on building reputation mechanism and evaluation method in NO were given; The last chapter applied theconclusion of the paper to investigate the famous trade Web-SUNBU.
全文共分为七章,主要内容如下:第一章作为全文的理论出发点和基础,围绕网络组织的定义、特征以及网络组织生存基础--电子商务环境等方面对网络组织的基本概念进行了阐述;第二章综合运用核心能力、竞争战略和交易费用理论对网络组织产生的理论基础进行阐述;第三章首先从组织协调的角度对网络组织进行了研究,给出了网络组织的结构,分类和特征,同时并给出了虚拟企业群簇;然后在此基础上分别研究了网络组织的生命周期模型、层次模型、过程模型、价值链模型,以及运行模式;第四章综合运用博弈论、图论的相关知识,通过构建网络组织的模型,对上一章所研究的网络组织结构的形成机理给出了一种理论解释;第五章在分析网络组织运行风险的基础上,分别建立无盟主网络组织的博弈论模型和有盟主网络组织的博弈论模型,详细研究了网络组织的协调机制,然后给出了网络组织协调机制的解决方案;第六章作为网络组织协调机制的重要组成部分,本章在讨论了网络组织中建立信任机制的必要性的基础上,研究了网络组织信任关系的类型,提出了在网络组织中如何建立信任机制。
- 推荐网络例句
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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
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The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。