湿润

The following results were obtained: 1. Several multi-pore materials were compared and a nylon membrane was choosed to conduct experiments. 2. Two devices and methods for controlling negative hydraulic heads were developed. Coupled with the devices, a system for precise control of soil moisture udring pot experiment was developed. 3. Two times of pot experiment studying wheat seedling growth under precise soil moisture control were conducted. Some very important results were obtained. 4. Capillary rise, horizontal and vertical infiltration under different nagative hydraulic heads were observed. The concepts of "critical wetting distance" and "wetting coefficient" were proposed. The linear relationship between wetting front movement distance and cumulative infiltration amount was confirmed. Spatial distribution model of soil moisture and its simple derivation method were established.

通过该项目支持，获得了以下的研究成果： 1、比较和检验了不同多孔材料，初步选定了用于水分控制的多孔膜材料； 2、完成了两种负水头控制方法与装置的研究，并制作了仪器，与负水头控制装置配套，制作了盆栽实验用水分精控盆； 3、进行了两期小麦苗期水分精确控制盆栽实验，获得了一系列重要结论； 4、进行了不同负水头下土壤的毛管上升、水平入渗、垂直入渗研究，提出了临界湿润厚度、湿润系数两个概念，确定了湿润锋与入渗量的线性关系、土壤含水量的空间分布模型，土壤含水量空间分布的简单推算方法。

Therefore, the relation between dripper discharge and crop-root distribution is the basis for determining technique parameters of drip irrigation.

土壤湿润区与作物根系分布之间的关系是确定滴灌湿润比的理论依据，而土壤湿润区形状直接受滴头流量的控制，因此，滴头流量与作物根系分布之间的关系是确定滴灌技术参数的依据。

By mono-factor analysis of the point drip infiltration,the horizontal and vertical movement distance of soil wetting front were not only in close relation with dripper discharge and drop water,but also had good power functional relation which exists with the soil characteristic ( soil density, soil initial moisture).

以室内试验为基础，测定了重壤土、中壤土、砂壤土在不同滴头流量、不同灌水量下的点源入渗运动过程，通过对点源入渗特性的单因子分析表明，湿润锋水平、垂直扩散距离不仅与滴头流量、灌水量关系密切，与土壤特性(土壤容重、初始含水率)也存在良好的幂函数关系，得出了以土壤物理参数和湿润比及湿润深度为基础的点源滴灌滴头流量的设计模式

The mechanism of wetting and electroosmosis of carbon cathode is discussed by the application of surface and capillary chemistry theories, on the basis of determination of relative phenomena in this melts; The hysteresis effect of wetting angle is studied and the velocity equation of carbon cathode electroosmosis is deduced.

归纳了熔液中碳溶胶、CO〓溶胶以及Al〓C〓胶体稳定性的影响因素。（6）根据对熔液中炭阴极湿润和电渗现象的研究，通过界面化学理论和毛细管界面理论的应用，讨论了熔液中炭阴极湿润和电渗机理。研究了熔液中炭阴极湿润角滞后效应产生的原因在于测量时体系的不平衡。推导了炭阴极电渗速率的理论方程。

The result showed that these typical profiles belonged to Ferri - Udic Luvisols, Arp - Udic Luvisols, Haplic - Stagnic Anthrosols, Ochri - Aquic Cambosols, Haplic - Aquic Vertisols and Cab - Udic Luvisols.

典型剖面研究结果表明：这些土壤分别被划归铁质湿润淋溶土土类、粘磐湿润淋溶土土类、简育水耕人为土土类、淡色潮湿雏形土土类、简育潮湿变性土土类、钙质湿润淋溶土土类。

Using the equal-area grids of 6 470 km2as geographical units,the distributional patterns of glires in the humid and semi-humid and semi-humid region of China were studied.

系统收集并整理了我国湿润半湿润地区啮类动物的地理分布资料，基于GIS技术，通过生境分析，确定了每个物种的分布范围，采用6 470 km2的等面积栅格作为地理分布单元，系统研究我国湿润半湿润地区啮类动物地理分布规律。

Available geographical data of glireswere collected to build their digital distributionmap in the humid regionof China based on habitat analysis supported by GIS. Using the equal-area grids of 6 470 km2as geographical units,the distributional patterns of glires in the humid and semi-humid and semi-humid region of China were studied.

系统收集并整理了我国湿润半湿润地区啮类动物的地理分布资料，基于GIS技术，通过生境分析，确定了每个物种的分布范围，采用6 470 km2的等面积栅格作为地理分布单元，系统研究我国湿润半湿润地区啮类动物地理分布规律。

Available geographical data of glireswere collected to build their digital distributionmap in the humid regionof China based on habitat analysis supported by GIS. Using the equal-area grids of 6 470 km2as geographical units,the distributional patterns of glires in the humid and semi-humid and semi-humid region of China were studied.

系统收集并整理了我国湿润半湿润地区啮类动物的地理分布资料，基于GIS技术，通过生境分析，确定了每个物种的分布范围，采用6 470 km2的等面积栅格作为地理分布单元，系统研究我国湿润半湿润地区啮类动物地理分布。

During the infiltration process of indirect subsurface drip irrigation, the ponded water depth changed from zero to a constant and accelerated the water movement in the vertical direction, which reduced the discrepancy of wetted distance in lateral direction and vertical direction, while the changed water depth had small influence on the wetting front movement in vertical direction to upward and downward. The shape of wetted soil zone was spheroid, and its symmetry axis lied near the bottom of the water conducting device.

间接地下滴灌灌水过程中，从零开始逐渐增大并趋于稳定的积水深度加速了水分在垂直方向的运移，缩小了横向湿润距离和垂向湿润距离之间的差异，但变化的积水深度对湿润锋在垂直方向向上和向下的运移速率影响不大，使湿润体形状表现为扁率不断减小的椭球体，且椭球体对称轴分布在靠近导水装置底部的位置。

The results indicated that BaCe0.8Ho0.2O(subscript 3-α) sinters are of single-phase structures of orthorhombic perovskite. In the temperature range of 600~1000℃, the nonstoichiometric materials (x=1.03 and 0.97) have higher conductivities in wet hydrogen and wet air and better performances of hydrogen-air fuel cells than the stoichiometric one (x=1). In this series, BaCe0.8Ho0.2O(subscript 3-α) has the highest conductivities 2.10×10^(-2Scm^(-1) in wet hydrogen, 3.46×10^(-2) Scm^(-1) in wet air, at 1000℃ and the maximum power output density 122 mWcm^(-2 at 1000℃.

结果表明，在600~1000℃温度范围内、湿润氢气和湿润空气气氛中，该系列材料的电导率随温度和钡离子含量的变化均与以该系列材料为固体电解质的氢－空气燃料电池性能随温度和钡离子含量变化的次序一致，即：非化学计量组成材料BaCe0.8Ho0.2O(下标 3-α)(x=1.03， 0.97)具有较化学计量组成材料BaCe0.8Ho0.2O(下标 3-α)(x=1)高的电导率和氢－空气燃料电池输出功率密度，其中BaCe0.8Ho0.2O(下标 3-α)有最高的电导率（1000℃时、在湿润的氢气气氛中：2.10×10^(-2)Scm^(-1)；在湿润的空气气氛中：3.46×l0^(-2)Scm^(-1)）和最大的氢－空气燃料电池输出功率密度（1000℃时：122mWcm^(-2)）。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。