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- 与 with great concentration 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The stress distribution of adhesively-bonded metal/metal single lap joints under tensile shear loading is analysed using elastic-plastic finite element method .The influence of lap length on the strength of adhesively bonded metal joints which are bonded with phenolic resin and acrylic resin respectively is discussed in detail. It is shown that adhesive has great influence on the stress distribution of the lap region. With the increment of lap length, the stress concentration of adhesive layer decreases.
本文在对国内外关于金属-胶层复合材料接头力学性能数值研究及发展现状进行综述的基础上,运用有限元法并结合实验手段主要研究了胶接接头承载后的力学行为,综合考虑了几何尺寸和物性参数对接头强度和应力分布的影响,并运用层次分析法对胶接质量进行综合评估,综合考虑接头形式,制造工艺,操作人员素质等因素的影响。
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This study analysised the condition of Xinjiang's petroleum resource and made an evaluation and it points out that the development of petroleum and natural gas of Xinjiang is still in the developing period in which it aims at discovering the petrol field and increasing its reserves.Although it has a great exploring potential,because of its geograghy limitation and a lack of exploring funds,the exploring level is till low,even lower than the everage level of the whole country. The study is based on theories of industry distributions,its concentration,macroscopic analysis,government regulations and continuing development.From microcosmic and macroscopic aspects,it scientifically and systematically analyses the problems in the development of petroleum industry in Xinjiang.It points that the developments of middle and upper reaches lack a balance and have no rational industry structures.So it is hard to form an integral industry chains.Moreover,the upper reach covers a too much large proportion in the development,so it can not give a strong impetus to other industries.Based it,the paper points the industrial concentration of Petroleum Chemical Products Manufacture of Xinjiang should be enhanced and Input to Petroleum Chemical Products Manufacture of Xinjiang should be increased.Due to a lack of an established fair and competitive market and government's perfect laws and regulations on petroleum industry,it points that the phenomenon of mixed operation has become common in monolopied business and competitive business,so the systems of petroleum industry needs to be restructured.It states clearly that the country should take the development and benefits of Xinjiang's economy into consideration when making strategies for petroleum development .Besides,the allocation of profits between the center and the local should be well arranged so that we can guarantee the profits of Xinjiang ,considered as a resource area.It also reveals that we should not only overcome limitations of resources,environment,economy and technology on continuring development,but also we should deal with some realistic problems well.For instance,contradictions between the concept of limited resource and continuing development,the relationship between petroleum industry's own features and continuing development,the contradictions between the limits on supply of petroleum and the need of future development of continuing resource ,outdated petroleum technology and the need of advanced technology for continuing development,tremendous damages to environment and requirements of environment protection for continuing development and Xinjiang continuing economic development,outdated policy of industry and continuing development,the relationship between continuing development of Xinjiang petroleum industry and continuing economic development of Xinjiang.
本研究以产业布局理论、产业集中度理论、灰关联分析理论、政府规制理论、可持续发展理论为依据,从微观、宏观两个层面,科学、系统、全面地分析新疆石油产业的发展问题,指出:新疆石油天然气目前仍处于油气田发现和增储的主要发展阶段,开发潜力巨大,但由于地质原因及勘探投入的不足,石油天然气探明程度偏低,低于全国平均水平;新疆石油产业产业结构布局不合理、上中下游发展不平衡,难以形成完整的产业链条,对工业的带动力与其本身具有的经济总量很不匹配;新疆石油开采业和石油加工业属于高度寡头垄断的市场类型,新疆石油化工业属于竞争型的市场结构,要想石油产业对新疆经济有较强的带动作用,新疆石油化工业必须上升到一定的层次和规模,在提高规模的基础上,提高新疆化工业的产业集中度;新疆石油加工业和化工业与农业呈现较高的关联度,加大对石油加工业和化工业的投入,对新疆经济的协调发展有着深远的影响;政府要从石油产业本质特征和发展趋势为着眼点,实施规制改革,分开政府规制政策的制定部门和监管部门职能,建立健全石油产业法律法规体系,对垄断性业务和竞争性业务实施分类规制;国家石油发展战略的制定应兼顾新疆区域经济的发展和利益,应切实处理好新疆与中央的利益分配,切实保证新疆作为资源产区合理的资源收益;新疆石油产业要想得以可持续发展,不仅要克服影响可持续发展的资源、环境、经济和技术等客观因素,还要处理好观念、需求、政策等诸多主观因素。
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Great majority Special Farmers" Cooperation set up by relying on the ability person , group leader business enterprise, or farming technology section, forming the property structure with differences, Hebei province is also the same, with the performance of the higher store capitalization concentration degree, appearing the difference between the big shareholder society member and small shareholder society member, the core society member and non-nuclear heart society member, the investor society member and manufacturer"s society member. the existence of advantage stock is the actual controller in co-operative societies, the surplus of the co-operative societies incline toward advantage shareholder, the Share Capital dividends is comparison far from the sum return according to trade return, Ministry of Finance funds nation the public finance prop up a funds and bring of the income is also basic for the big shareholder of the school store income.
合作社产权结构的同质性是合作社实现成员民主管理、资本报酬有限、盈余按惠顾额返还的基础,而河北省农村现阶段经济社会条件是资本和具有企业家素质的人才相对于劳动是稀缺的生产要素,绝大多数农民专业合作社都是依托能人大户、龙头企业、或农技部门组建,形成了农民专业合作社异质性的产权结构,表现为合作社股金集中度普遍较高,社员中出现大股东社员和小股东社员,核心社员和非核心社员,投资者社员和生产者社员的差别,合作社中的优势股为农民专业合作社的实际控制者,农民专业合作社的利益分配自然倾向于优势股东,按股分红的比例远高于按交易额返还的比例,国家财政扶植资金及带来的收益也基本为合作社的大股东所得。
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General analysis indicates that Myriophyllum spicatum L.Panicle shape of the absorption of chromium Cr6 + concentration and treatment exist between the concentration of significant positive correlation with Myriophyllum spicatum L.can pollute the environment in better enrichment of chromium, the background environment The higher concentration levels of heavy metals, plant accumulation of heavy metals in higher concentration levels, the application of plant technology for the repair of heavy metal pollution on the environment to provide a scientific basis on Myriophyllum spicatum L. of heavy metal pollution of wetland restoration has great potential.
综合分析表明,在一定范围内,穗状狐尾藻对铬Cr6+的吸收富集含量随处理浓度升高而增大,说明穗状狐尾藻在污染环境中能较好地富集重金属铬,从而得出在一定范围内,环境背景中重金属含量水平越高植物富集重金属的含量水平也越高的结论,这就为应用植物技术修复重金属对环境造成的污染提供科学依据,而穗状狐尾藻对湿地重金属污染具有较大的修复潜力。
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According to the energy conservation theory, BOM and CSIM4 were coupled. The BOM has no treatment on transmission solar radiation, which is of great importance when the model is adapted to Arctic Ocean. So the treatment was introduced to BOM. Through numerical test on different lead albedos, it was found that sea ice thickness is not so sensitive to lead albedo, which may be contribute to the lead occupies little ratio within multiyear sea ice pack. The reason of summer over-melt of arctic sea ice is the NCEP reanalysis downward solar radiation being larger than its reality. Then the arctic sea ice climate variability was simulated. Results showed that: simulated ice thickness change is in accord with the submarine investigated mean sea-ice draft changes. Simulated annually maximum ice thickness along the Eurasian continental oceans are closely related to the observed ones. The long-term mean simulated ice motion has the same features of the SSM/I derived ice motion. Sea ice extents in differential sub-regions have same trends comparing to the satellite passive-microwave data derived ones. Simulated ice concentration is closely related to the observed in the Arctic sub-regions. Sea ice flux through the Fram Strait involves ice concentration, motion and thickness. It is a composite criterion for sea ice model evaluation. The simulated ice area and volume export through the strait accord with the satellite derived or statistically reconstructed ones.(5) The simulated ice thickness climate variability and mean sea surface current of the coupled model were analyzed, results showed: the total ice volume in the Arctic Ocean has a significant decreasing trend. The volume variability is of a 10-year timescale oscillation, with two major periods of 12-13a and 18-20a. Mean ice thickness in the arctic sub-seas has different tendencies. It has an increasing trend in the Barents-Kara Sea and Baffin Bay-Labrador Sea, and decreasing in the others. The characteristic time scale of 7-10a wherein the river discharges leads the Fram Strait ice volume export is about the period that river water takes to be conveyed across the Arctic Ocean.(6) Using the simulated ice distribution in the Arctic Ocean and China precipitation, air temperature and SST in tropical key regions, the climate teleconnection were studied. Result showed: When the mean sea ice thickness is large in the central Arctic Ocean and Chukchi-Beaufort Sea , and small in the Barents-Kara Sea and Baffin Bay-Labrador Sea , the precipitation in South China, Tibetan Plateau, and the north part of Northeastern China are always smaller than normal, and v. v. When the mean ice thickness is small in CA, BC, East Siberian Sea and Greenland-Iceland-Norwegian Sea , and large in BL, The air temperature in north-eastern China, the southern of Tibetan Plateau, and Hainan Island, are always lower than normal, and v. v. In addition, when the sea ice is thick in BC and BL, the SST is larger in the middle and eastern Pacific Ocean, and is smaller in the tropical Southeastern Indian Ocean.
由于BOM没有考虑透射太阳辐射的物理过程,研究表明透射太阳辐射对北冰洋的能量收支起到重要作用,因此在BOM模式中引入了对透射太阳辐射的处理;通过对不同水道反照率的数值试验表明海冰厚度对水道反照率的敏感性不强,可能与海冰区水道面积占的比率很小有关;而模式模拟的北极海冰夏季&过度融化&主要源于NCEP再分析资料提供了偏大的太阳短波辐射;对北极海冰的气候变率进行了模拟研究,结果表明:模拟的海冰厚度变化与潜艇探测的海冰吃深度变化具有一致性;模拟和观测的亚欧大陆沿海的年内最大海冰厚度有很好的相关;模拟的海冰移速与长期平均的卫星反演的海冰移速具有相同的速度分布特征;模拟的各个海区海冰面积的变化趋势与卫星反演资料分析的结果基本一致;模拟与观测的主要海洋分区的海冰密集度具有很好的相关:弗瑞姆海峡的海冰体积和面积的输送涉及到海冰密集度、厚度和移动速度,是判断模式模拟能力的一个综合的指标,模式模拟的结果与卫星反演或重建的面积输送、体积输送具有很好的一致性;(5)分析了模拟的北极海冰厚度的气候变率及气候平均表层海流场,结果表明:北极海冰的总体积有显著减少的趋势,北极海冰总体积的变化具有10a际尺度振荡的特点,存在18-20a和12-13a两个主周期;北极海冰的平均厚度在各个海区的变化趋势不同,在巴伦支—喀拉海和巴芬湾—拉布拉多海地区海冰厚度有显著的增加趋势,而其它海区存在减少的趋势;通过对模拟的气候平均表层海流的分析表明,北极河流流量超前弗瑞姆海峡海冰流量7-10年的特征时间尺度与表层海流的气候分布存在着必然联系:(6)利用模拟结果以及中国降水、气温和热带关键区SST资料,讨论了北极各海区海冰平均厚度与中国降水、气温以及热带关键区SST的关系,结果表明:在北极中心海区和楚科奇—波弗特海海冰厚度偏大,在巴伦支—喀拉海以及巴芬湾—拉布拉多海海冰厚度偏小,则中国降水在华南地区、青藏高原和东北北部降水偏少,反之相反;在北极中心海区、东西伯利亚海、楚科奇—波弗特海以及格陵兰海海冰厚度偏小,在巴芬湾—拉布拉多海海冰厚度偏大,则在中国东北地区、高原南部地区和海南岛附近气温偏低,反之相反;另外,北极楚科奇—波弗特海和巴芬湾—拉布拉多海海冰厚度偏大时,在热带中东太平洋海温偏高,而在热带东南印度洋海温偏低。
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The difference of bulk density of coastal soils took an effect on infiltration rate and diffuse rate. The infiltration rate and diffuse rate of coastal soils which bulk density was small were big. The water transmitting experiment of coastal soils showed that the saturated conductivity of different layers in soil profile were great, and the saturated conductivity of undisturbed soil was highly higher than that of disturbed soil. The saturated conductivity of coastal soils embanked earlier was lower than that of coastal soils embanked later. Under different water content, the unsaturated conductivity of coastal soils had a great change and the bulk density had an effect on unsaturated conductivity. The soil with a low bulk density had a high unsaturated conductivity. Chlorine ion moved in coastal soil was an inert ion. The distribution of CU in soil was definite and repeated, which is no relation with the time and velocity of infiltration. The concentration of infiltration solution and the texture of coastal soils had no apparent effect on solute movement synthetic dispersion coefficient, while bulk density took an apparent effect on solute movement synthetic dispersion coefficient. Synthetic dispersion coefficient of coastal soils increased as bulk density decreased.
浙江大学硕士毕业论文浙北海涂土壤水分特性及溶质运移模拟研究 4、海涂土壤的导水能力强,且土壤剖面备土层的饱和导水率变化大,原状土的饱和导水率远大于扰动土的饱和导水率,围垦时间较早的海涂土壤的饱和导水率较围垦时间晚的海涂土壤的饱和导水率要小;不同含水量下的非饱和导水率变化范围很大,最大值与最小值差距可达 10'③ 5、容重的不同对入渗率、扩散率、非饱和导水率都有影响,容重小,入渗率、扩散率、非饱和导水率也花 6、在海涂土壤中运移的氯离子是一&惰性离子&,氯离子在土壤运移过程中的分布有一定的确定性和重现性,与入渗时间和入渗速度无关,溶质运移过程中,入渗溶液的浓度和海涂土壤的质地对溶质运移综合扩散系数DSh无明显影响,而土壤容重对溶质运移综合扩散系数DSh有影响,容重小,DSh大。
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The results of the TG and DTG curves show that, in the whole intumescing process, APP, PER and MEL cooperate with each other and synergism is generated; The kind of base resin and its contents, the ratio of the component of fire retardant system and their contents all have great influence on the thermal degradation behaviors of fire retardant coating; The concentration of oxygen has no influence on the thermal degradation of fire retardant coating below 345℃, while the influence can not be neglected above 345℃, but compare with the factors mentioned previously, the influence is small.
研究表明,聚磷酸铵-三聚氰胺-季戊四醇三者能密切配合,对阻燃起到协同作用;基料树脂的种类及含量、阻燃体系配比及含量对防火涂料的热分解行为有较大的影响;氧气浓度在低温阶段(345℃以前)对热解行为几乎没影响,而在高温阶段(345℃以后)则对热解行为有影响,但相对于前面的因素对热解的影响来说,氧气浓度对防火涂料的热解行为影响较小。
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The management that try a database, especially the school try a database has to have great capacity, the category have another of characteristics, the normal regulations management contain work have great capacity, search difficulty, not easy more recent weakness, try a database the management system can to try an execution science of management, make use of the modern computer function strong, operate the quick advantage of speed, carry on the concentration and have the preface, valid management towards trying, renew the convenience and search fast, a winding is vivid and can also pass the printer after set book be over to print directly try book, lowered the labor strength consumedly, need with the password entry system, have the certain safety.
论文价格:30元,程序价格:30元全套价格:原价60元,会员价50元摘要试卷生成的管理,特别是学校的试卷生成具有量大、种类多的特点,常规管理有工作量大、查询困难、不易更新的缺点,试卷生成管理系统可对试题实行科学的管理,利用现代电脑功能强大、运算速度快的优点,对试题进行集中、有序、有效的管理,更新方便、查询快捷、组卷灵活还可在组卷结束后通过打印机直接打印成试卷,大大降低了劳动强度,需用密码登录系统,具有一定的安全性。
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The management that try a database, especially the school try a database has to have great capacity, the category have another of characteristics, the normal regulations management contain work have great capacity, search difficulty, not easy more recent weakness, try a database the management system can to try an execution science of management, make use of the modern computer function strong, operate the quick advantage of speed, carry on the concentration and have the preface, valid management towards trying, renew the convenience and search fast, a winding is vivid and can also pass the printer after set book be over to print directly try book, lowered the labor strength consumedly, need with the password entry system, have the certain safety.
该套毕业设计包括:论文+程序+开题报告+PPT,若想看更详细的资料介绍,请联系 QQ:49016366摘要试卷生成的管理,特别是学校的试卷生成具有量大、种类多的特点,常规管理有工作量大、查询困难、不易更新的缺点,试卷生成管理系统可对试题实行科学的管理,利用现代电脑功能强大、运算速度快的优点,对试题进行集中、有序、有效的管理,更新方便、查询快捷、组卷灵活还可在组卷结束后通过打印机直接打印成试卷,大大降低了劳动强度,需用密码登录系统,具有一定的安全性。
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The management that try a database, especially the school try a database has to have great capacity, the category have another of characteristics, the normal regulations management contain work have great capacity, search difficulty, not easy more recent weakness, try a database the management system can to try an execution science of management, make use of the modern computer function strong, operate the quick advantage of speed, carry on the concentration and have the preface, valid management towards trying, renew the convenience and search fast, a winding is vivid and can also pass the printer after set book be over to print directly try book, lowered the labor strength consumedly, need with the password entry system, have the certain safety.
论文 字数:12970页数:48 带程序)摘要:试卷生成的管理,特别是学校的试卷生成具有量大、种类多的特点,常规管理有工作量大、查询困难、不易更新的缺点,试卷生成管理系统可对试题实行科学的管理,利用现代电脑功能强大、运算速度快的优点,对试题进行集中、有序、有效的管理,更新方便、查询快捷、组卷灵活还可在组卷结束后通过打印机直接打印成试卷,大大降低镣动强度,需用密码登录系统,具有一定的安全性。关键词:分析,设计,测试,试卷生成系统,调试,查询,打包
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。