层理论的
- 与 层理论的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this paper,the dedusting function of axial flow vertical cyclonic water film deduster is analysed by means of Leith's theory of boundary layer separation.
本文借助于Leith和Licht的边界层分离理论,对轴向出风的立式旋风水膜除尘器的除尘性能进行了分析,并得出了除尘效率的理论公式和一些有意义的结果。
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In this paper, as a case of Karamay, we have studied on space-time changement of soil quality in oasis of arid area. We measured quality for different land use types and years in same type by combinativing field sampling for Karamay in Xinjiang and analysis in laboratory, which is directed by former theory of soil quality. Then we did integrated evaluation of soil quality for different land use types, and had drew some conclusions as followed: In four land use types, the soil bulk density of layers(0~15cm) for farmland and tree land is bigger than the other land use types.The organic matter of every layer in manpower Tamarix Bulrush land is bigger; organic matter of Tamarix Bulrush land release efficiency nitrogen which result ration of C/N is higher; total nitrogen of all layers in farmland variety great as being effected by mass use of nitrogen in agriculture; deadwood and defoliation of tree、shrub and bulrush pooled in 5cm layer to result that quick nitrogen is the biggest among all layers. The total salt of nature shrub tree land for every layer being bigger than farmland explain that nature shrub thee land strongly stand salt and farmland for basification in this area; that the nutrient of face layer is bigger than the ground layer may be explained by that vegetation gather nutrient to be stored in deadwood and defoliation.
本文对以克拉玛依为例,对干旱区绿洲土壤质量的时间空间变化进行研究,在有关土壤质量的研究理论指导下,通过田间调查取样和室内分析相结合的方法,对新疆克拉玛依市农业开发区的不同土地利用方式及同一土地利用方式下不同利用年限土样土壤理化性质进行测定,从而对新垦绿洲不同土地利用类型土壤质量进行综合评价,结果如下:四种土地利用方式中,农地、乔木林地表层(0-15cm)土壤容重较大;各土层人工柽柳芦苇地的土壤有机质含量均较大;柽柳芦苇地的有机质在矿化过程中所释放出有效氮,导致柽柳芦苇地的C/N比例较高;受到农业耕作使用大量氮肥的影响,农地各土层全氮含量变异较明显;乔木、灌木及芦苇的枯枝落叶主要集中在5cm范围之内,导致几种土地利用方式类型下该层土壤速效氮最大;天然灌木林地的土壤总盐在各层均较大,其次是农地,说明天然灌木林地的高耐盐能力,以及该区农业生产用地的土壤盐碱化程度较重。
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In the first section,the existence of solution for a class of non-linear systems with three -point boundary problem is obtained by applying the differential inequality theory .
在第一部分中,我们应用微分不等式理论证明了一类非线性系统三点边值问题解的存在性;在第二部分中,运用微分不等式理论研究了一类带有转向点的拟线性奇摄动边值问题的非单调内层解;在第三部分中,利用对角化方法研究了一类向量二点或者三点边值问题解的存在性,并获得解及它的一、二阶导数的渐近估计。
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Critical voltage for a simply supported rectangular thin plate under uniform electric field is presented by using Navier solutions.
基于经典板理论,假设材料的电弹参数为板厚方向坐标的幂函数,采用含压电耦合项的修正层合理论,推导了压电功能梯度薄板在电载荷作用下的屈曲方程,并利用Navier解,得到四边简支矩形薄板在均匀电场下的屈曲临界电压。
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It is the first time to use the " soft ball model" theory of duster to explain the structure of Yn ( n=2-8),and adopt the "shell model" theory and assigning equally delocalize valence electrons of cluster to elucidate the relativity of structure and stability of doped cluster of noble metal Au,,Y(l -9) successfully.
首次利用团簇的&软球模型&理论解释了Y_n(n=2-8)的基态结构,采用团簇的&壳层模型&和价电子离域均分理论成功地阐明了贵金属掺杂团簇Au_nY(n=1-9)的结构与稳定性的关系。
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At last the paper realized the advantages and disadvantages of passive solar building and adnvanced some suggestions in future research. From another point, the paper logged the process of the building of the experimental equipment and the mounting of the measurement equipments that accumulated some operating experimence.Carrying experiments, calculating and analyzing the experimental data for more than 2 years, the paper gained some constructive conclusions. In winter the indoor air temperature and RH are lower than comfort criteria, but people feels very comfortable in the passive solar house. The thermo-circulation formed by Trombe wall play an important role in improving indoor air temperature and RH. Based on the analogy analysis theory, the natural convection heat transfer in the air gap can be treated as superposition of two natural convection heat transfer processes occurring over isolated isothermal vertical flat plate, in this case namely the massive wall and glazing. Two empirical formulas for Q and Nu are obtained. The investigation shows that the optimal time to open the damper should comply with the period that the thermo-circulation happens which can be controlled by thermal response characteristics of Trombe wall surface temperature and air temperature in the air gap.
经过两年多的实测和计算,根据传热学、流体力学、统计学等学科的基础理论,对大量数据进行整理归类、分析讨论,主要得到如下结论:(1)冬季,含有特朗贝墙体的被动式太阳房室内热湿环境较舒适性标准偏低,但人体感觉比较舒适,特朗贝墙体形成的热循环通风在调节室内温度和相对湿度方面起到很大的作用;(2)特朗贝墙体空气间层自然对流可以看作是两个等温独立大平板的自然对流换热过程的叠加,通过与大平板自然对流理论类比获得了计算热循环过程中对流换热量的经验公式;(3)特朗贝墙体通风口的启闭可以根据玻璃幕墙内壁面温度、蓄热墙体外壁面温度和空气间层进出口空气温度之间的关系来进行控制,从而有效地阻挡冬季冷循环的发生;(4)夏季,如没有有效的通风降温措施,被动式太阳房内会产生明显的过热。
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In this paper,we use geostatistics to analyse special variability of soil salinity in Yanqi Basin of Xinjiang base on soil salinity data,and then we predict and draw the soil-salinity-class maps including unsampled region,it shows: the soil salinity data's Cv are not less than 100% and have very strong special variability;the spherical model f...
在焉耆盆地大规模的土壤取样、试验分析盐分数据的基础上,采用地统计学的方法对研究区的土壤盐分进行了空间特征变异分析,并采用普通克里格插值法制作出焉耆盆地的土壤盐分空间数字地图,结果表明:研究区各层土壤盐分变异系数均大于100%,具有强空间变异性;对土壤盐分进行半方差函数计算分析,发现拟合的理论模型均为球状模型,各层土壤盐分表现出强烈的空间相关性;土壤盐渍化程度在水平方向的分布与地形地势的关系密切,在垂直方向则表现出强烈的表聚特性。
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This paper analyzes the difficulties faced by marine gas exploration in the western Sichuan Basin, and presents 6 directions for research, such as source rocks, reservoirs, preservation conditions, accumulation conditions, geologic theory of marine oil/gas reservoiring and methodologies for analysis and evaluation of petroleum geology in the western Sichuan Basin.
为此,对川西海相天然气勘探的难点进行了分析,并指出了包括:烃源-资源、储层、保存条件、聚集条件、川西海相油气成藏地质理论、川西海相油气地质分析评价方法技术系列等在内的6个科技攻关方向,总结出&强化盆地构造演化与恢复研究,重视油气成藏地质研究,加大基础地质研究投资力度,设立一批围绕海相油气成藏地质理论和地质分析评价方法技术系列的专项课题,不要大而全,强调专项攻关,各个击破&的技术对策,同时提出了开展13个专项研究的建议。
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So as to understand deeply the supply contract in theory; Fouth, based on the research above, the author, discusses the application of supply contract management, with providing some contract models and exampling the supply contract management in some intricate contracts models, for instance, Quanlify, Fix-quantified, Time flexible, and Forward contracts etc..
如,应用委托代理模型,多任务代理模型,团队理论模型等,研究供应链合同管理中企业的合同管理,并应用二层代理模型深入探讨合同决策的理论分析方法。另外,作者还应用报童模型,结合具体供应链合同管理的合同模型,分析合同决策,与供应链结构和效率之间的联系,探讨报童模型在供应链合同管理研究中的重要价值。
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Drafting innovations in practice research (1) In the section of "panorama of financing theory and financing behavior of listed companies", from the macroscopical aspect, directly aiming at theoretical goal system of refinancing behaviors of listed companies and refinancing supervision, the thesis on one hand sketched the contours of strategic frame for listed companies focusing on "computerization of financing ability","diversification of financing ways","rationalization of financing structure",and"financing use efficiency"; on the other hand through international comparison and aiming at the range pole, the thesis put forward policy recommendations and direction lead of brand-new visual angle for China's financial supervisors and China's refinancing moving towards standardization of management and efficient supervision.
在实践研究方面的拟创新之处(1)在&上市公司融资理论与融资行为概论&部分,论文从宏观层面,直接针对上市公司再融资行为和再融资监管的理论目标体系,一方面为上市公司勾勒着眼于&融资能力计量化&、&融资方式多样化&、&融资结构理性化&、&融资利用效率化&的战略框架;另一方面通过国际比较和标杆瞄准,为中国金融监管层和中国再融资走向管理规范化和监管效率化的给出全新视角的政策建议和方向引导。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力