In addition , some criterions and targets such as restricting temperature on crops growing affected by interaction of water and temperature , which have very value for adjusting crop growth and using fertilizer , are gotten 此外，在研究中获得了作物生长水热耦合效应限制温度等对调节作物生长和合理施用肥料具有应有价值和指导意义的一些判据和指标。
The interaction , quantitative relation and character of energy that moisture vaporize from soil , nitrogen fertilizers transform , crop grows and crop absorbs nitrogen are discussed systematically in this paper through lab and field trial 本文通过室内和田间试验研究对土壤水分蒸发，肥料氮素挥发转化及谷苗生长和氮素吸收的水热耦合效应及其定量关系和能量特征进行了系统探讨。
According to the discrepancy of useage , we choose 2 - 5 differential pressure of tower to rectify , use multilevel heat coupling technique , use system heat by classification , and make good use of heat as far as possible , so as to save the cost of steam 根据产品用途不同或差异，选用2 - 5塔差压精馏，采用多级热耦合技术，分级利用系统热量，使热量的利用尽可能达到最佳状态，以节约蒸汽消耗。
In addition , the dynamic equation about ammonia fertilizer affected by interaction of water and temperature is gotten . 3 . the phenomenon about water vaporization - induced ammonia volatilizing is verified , and it is studied quantitatively 此外，通过回归分析还建立了表征施入土壤中尿素转化为铵态氮的动力学型方程，其参数均与土壤水分、温度有关，并得到这些参数的水热耦合效应关系式。
The homogeneous state control equations with mechanic electric heat coupling effect of piezoelectric thermoelastic open shell is derived by uniting the static equilibrium equations , the charge displacement equilibrium equations and thermal flow equilibrium equations 依据此增维的本构关系，结合压电热弹性体平衡方程和热平衡方程，成功地导出了压电热弹性体层合开口壳机、电、热耦合问题的齐次状态方程。
Zero - value coefficients about interaction of water and temperature is put forward , zerovalue phenomenon about interaction of water and temperature and energy character that moisture vaporizes , ammonia volatilizes , millet seeding grows and it absorbs nitrogen are brought to light 在所研究各种体系水热耦合效应基础上，提出了水热效应零值参数概念，揭示了水热耦合效应零值现象及水热耦合作用下土壤水分蒸发，肥料氮挥发和谷苗生长及氮素吸收的能量特征。
In recent years , such problems as the extension and application of on - film irrigation , reclamation of salinized soils , and prevention of secondary salinization have made it important to study coupled movement of soil water , salt and heat transfer under plastic mulch in arid and semi - arid areas 近年来覆膜灌溉的推广应用、盐碱地开发和改良以及土壤次生盐碱化防治等问题使得研究西北干旱-半干旱地区覆膜条件下土壤水、盐、热耦合迁移规律成为重要课题。
( 4 ) after the rationality of numerical simulation has been testified , going along a series of numerical simulation and performance research . firstly , the thermal superposition principle , based on adiabatic heat transfer coefficient and superposition kernel function , is put forward for the research of discrete heat sources ’ temperature field and thermal conjunction effects secondly , decreasing thermal spreading resistance is good for improving the heat transfer performance , and several methods are discussed 第一、在热叠加原则理论基础上,利用数值模拟方法研究了固态组件的温度场和多个分散热源在热扩展体上的热耦合效应,而且证明了强迫对流情况下热叠加原理形成的温度场和系统模拟时的温度场计算结果非常吻合;第二、针对固态组件里集中热源的特点,对扩展热阻进行了研究,从理论上探讨了减小扩展热阻改善散热性能的方法。
The coupled turbulent flow field and temperature field are simulated by finite element method ; the influence of casting speed on the turbulent flow field and temperature field in the melting bath and the interaction between those two field are analyzed ; the variation tendency of the heat flux intensity between the melting bath and casting roll and law of variation with changes of casting speed in the process of solidification are given ; a comparison between the simulation results and experimental results demonstrates their good agreement ; and the mechanism of the heat flux variation is identified by analysis on the temporature gradient and development of solidification within the melting bath and its influence on the variation of the heat flux intensity 采用有限元法模拟了双辊铸轧不锈钢过程的流热耦合问题;分析了铸轧速度对熔池内流场、温度场的影响以及流场与温度场之间的相互影响;给出了凝固过程中熔池与铸轧辊之间的热流密度变化趋势及随铸轧速度的变化规律,并把此模拟的结果与试验的结果相比较,吻合较好;通过熔池内温度场及温度梯度分析了熔池内凝固的发展及其对热流密度变化的影响。
In addition , the model of interaction of water and temperature between field water vaporization and soil water storage , temperature and millet weight is gotten by field trial . 2 . the ammonia volatilizing of fertilizer is suit to the dynamic equation as y = a + bt , the coefficients in the equation are related to the kind of fertilizer , temperature and water content of soil , and the dynamic equation about ammonia volatilization including water and temperature and the is developed 肥料氨累积挥发量符合零级反应动力学方程y = a + bt ，方程中系数与肥料种类、温度和土壤含水量有关，碳铵a 、 b值均比硫酸铵高，土壤含水量增大， a 、 b值降低，温度升高， a 、 b值增大，并由此得到含温度或土壤湿度因子的肥料氨挥发动力学方程，并建立了含水、热因子的肥料氨挥发水热耦合效应动力学方程。
