蒸發散計 的英文怎麼說
中文拼音 [zhēngfāsǎnjì]
蒸發散計
英文
evapotranspirometer-
To utilize hydraulic soil evaporimeter and supporting meteorology, radiation, the materials on the surface water evaporation, considering the influence of each factor of " soil - plant - atmosphere " system on soil evaporation, we set up calculating model of the soil evaporation which is suitable for the heilonggang region
利用水力式土壤蒸發器及其配套的氣象、輻射、水面蒸發儀器觀測資料,綜合考慮「土壤植物大氣」系統中的各個因素對土壤蒸散的影響,建立了適于黑龍港流域的土壤蒸散量計算模型。A simple two - component structure model for daily evapotranspiration
陸面日蒸發散量計算的兩層阻抗遙感模型According to the result of analysis, it is advisable to invoke the general evaporation model should the avoidance of the overestimation on the strain energy release rate for very thin package cases be desired
此外,計算結果還顯示:影響「爆米花」式斷裂的主要可控因素是擴散系數d 。和蒸發系數f卜其中,蒸發系數f 。The evapration of water area is calculated by et0 multiplied by kc ; and then the evapotranspiration estimation models for other categories ( singular underling surface ) are presented ; based on bare soil and dense grass models the evapotranspiration estimation models for partly grass covered surface is presented combined with vegetation fraction data. it is feasible and logical each categories using singular way and mean, the result of regional evapotranspiration over south ningxia is given
將水體單獨處理,由參考作物蒸散乘以比例系數直接計算得出水體蒸發;建立了4種單一類型下墊面(裸地區、草地完全覆蓋區、喬木林區、灌叢區)蒸散計算模型;對混合下墊面(草地?裸地區)區域蒸發(散)計算方法使用裸土和草地完全覆蓋蒸發(散)計算模型,然後結合植被覆蓋度給出。The developed apparatus can automatically measure evapotranspiration at setting up interval and memory the data through a 32 kilobyte data storage memory. measured data can be transmitted to personal computer by rs232 series communication interface. apparatus will be trigged at measurement time by a real time chip set in it
該儀器通過實時時鐘晶元實現間隔採集動作的觸發及時間、日期的計數;利用液晶顯示器( lcd )進行顯示;使用它能在無人監管的工作環境下,定時進行蒸散測量並將測得數據自動保存到32k數據存儲器中;再通過rs232串列通訊介面將數據傳送到pc機進行進一步處理。A linear relation can be found between response value of ultraviolet absorption detector, fluorescence detector, electrochemical detector and refractive index detector and quality of the object under test ; however, relation between response value of evaporative light - scattering detector and quality of the object under test is usually not a linear one, therefore, mathematical conversion of response value should be made before making calculation when necessary
紫外、熒光、電化學和示差折光檢測器的響應值與待測物的質量呈線性關系,但蒸發光散射檢測器響應值與待測物的質量通常並不呈線性關系,必要時需對響應值進行數學轉換后進行計算。Calculation of the loss of runoff for the frozen ground during melting period ; 7
凍土融解期產流損失的計算; 7流域蒸散發的時變性。Calculation of quantity of soil evaporation takes an important part in moisture content prediction, rainfall surface flow calculation and evaluation of water resources
摘要土壤蒸散發量的計算,在墑情預報、降雨徑流計算及水資源評價中都佔有重要的地位。It can be used in the larger scale calculation in next research. the main achievements of this project were concluded as follows : 1. substantiation of complementary relationship for area evapotranspiration based on nearly 30 years data from 432 weather stations and 512 hydrological stations in china, using means of water balance, the secular annual mean actual evapotranspiration was established
為今後進行大范圍實際蒸散發研究提供了有益的嘗試,本文主要完成以下幾個方面工作: 1區域蒸散互補關系的驗證利用432個氣象站和512個水文站全國共計944個氣象、水文站近30年的氣象、水文資料,採用水量平衡法,計算流域多年平均實際蒸散發量。For better veracity of simulating model, model is used lookup - table module to calculate the thermodynamic character of refrigerant, and datas of experience and test is combined in the compressor module, also the coefficient of heat transfer changing by running parameter is decided by computational procedure. in addition, choosing congruence step size solves the divergence of simulation procedure
為了使模擬模型具有相當的準確性,模型中採用查表模塊進行製冷劑熱力性質計算,壓縮機模塊中將實驗數據與經驗計算數據相結合,通過程序運算確定冷凝器和蒸發器傳熱系數與運行參數之間的關系,並成功解決了模擬程序運行發散的問題。Two typical examples analyses are conducted for the average conditions both of winter and summer climates under vapor diffusion and air leakage. a further discussion is set forth to determine the main factors that the moisture accumulation in wall is affected. it is found that the factors are the relative humidity at the wall surface, indoor temperature, permeability, air pressure difference and rate of the infiltrative or exfiltrative airflow
本文首先研究了墻體內的濕氣遷移過程,詳細分析了濕積累現象形成的原因,通過對夏、冬兩季平均氣候下墻內溫度、水蒸氣壓力、相對濕度及濕積累在僅有擴散、擴散與空氣滲透同時存在等情況所作的具體計算,發現墻內、外表面的相對濕度、室內溫度、滲透率、空氣壓差以及空氣的滲流速度是影響墻內濕積累的主要因素。According to the facts of chemical spill accidents in waterway transport, systematic analysis is made on the suitable dispersion models and source strength calculation models of multiple spilled substance, resource and environment respectively, so as to decide the poison and fire & explosion danger area of an accident through the way of dispersion simulation. to resolve the problem to the calculation of spill amount from tanks, calculation formulas on various types of tanks were worked out ; at the same time, research is carried out on the source strength calculation of mixtures with regard to the possible spillage of chemical mixture in waterway transport. for the sake of convenient application, a computer software for the simulation of dangerous area is developed which can provide great assistance to the decision - making of emergency response and reach the target of reducing the damage of the life, property and environment to the smallest degree
根據水運化學品泄漏事故的具體實際,針對各種泄漏物質、泄漏源和環境條件研究了各自適用的擴散模式和源強計算模型,以便通過擴散模擬確定事故的毒害和火災爆炸危險區域;為解決儲罐泄漏量計算困難的實際問題,推導了適用各型儲罐、液艙的泄漏量計算公式;針對化學品水路儲運泄漏事故中泄漏物質可能會以混合物形式存在的情況,探討了混合物的蒸氣釋放源強計算;為方便實用,開發了蒸氣擴散危險區域模擬計算機軟體,從而為事故應急決策提供了有力的輔助支持,以達到盡可能減少人員傷亡和財產損失,減輕環境污染的目標。In this paper, starting with the physical mechanics of land surface hydrologic process and the introduction of the theory in probability statistic distribution, an analytical expression of heterogeneous evapotranspiration efficiency is given which takes heterogeneous soil water content ' s subgrid scale spatial variability into account, through which the parameterization scheme of subgrid scale soil surface ' s evapotranspiration efficiency ( which is generally called mosaic method ) is modified to a statistic - dynamic scheme in which a whole heterogeneity of the grid region is considered
本文從陸面水文過程的物理機制出發,引進概率統計分佈理論,推導出一種由非均勻土壤含水量次網格尺度空間變率所形成的非均勻蒸發散率解析表達式,從而將通常的次網格尺度地表蒸散率的參數化方案( mosaic方法) ,改進為考慮網格區整體非均勻性的統計-動力參數化方案。After the rationality of theoretical model has been testified, going along a series of numerical simulation and find the best ratio of evaporation segment and condensation segment by means of analyse the temperature variety of the electronic element surface on the effect of the radiator structure change. a series of strenthen step about heat transfer put forward theoretically by means of numerical analysis focuse on the thermal resistant of each tache of the heat transfer
在證實了本理論模型是合理的基礎上,本文根據所建立的模型進行了一系列的數值模擬計算,分析了熱管型電子器件散熱器的結構尺寸(蒸發段和冷凝段的長度比、肋片的高度等)變化對發熱器件表面溫度的影響,得到了蒸發段和冷凝段的最佳長度比。This information, together with surface observations of sunshine duration, global solar radiation, soil and grass minimum temperatures, evaporation and potential evapotranspiration, are essential for many fields of studies including climatology, hydrology, agriculture and civil engineering design
此等資料與及其他地面觀測,例如日照時間太陽總輻射土壤溫度最低草溫蒸發量及可能蒸散量等,對于很多研究領域,包括氣候學水文學農業及土木工程設計等,都是不可缺少的。Thereby the complicated evaporation process of heterogeneous soil surface is simplified into a flux integral expression which contains two - pail contributions from soil water relatively saturated region and unsaturated region, and it is proved that the calculation of mean evapotranspiration efficiency in grid region can be simplified into weighted average of heterogeneous regions
從而將非均勻地表區域的蒸發過程的復雜機制分解為地表層土壤水分飽和區與非飽和區影響下的通量貢獻積分式,從理論上證明,網格區平均蒸散率的計算可簡化為不同性質的區域加權平均。The scheme is on the basis of the heterogeneity of soil water content ' s horizontal spatial distribution in the region and the evaporative power of relatively saturated region. if the probability density function ( pdf ) of soil water content ' s horizontal spatial distribution and the evaporative power of relatively saturated region are attainable, the mean evapotranspiration flux of the region can be calculated
該方案以區域內土壤水分在水平空間上分佈的非均勻性和相對飽和區地表蒸發力為基礎,在已知土壤水分水平空間分佈律的概率密度函數( pdf )和飽和區地表蒸發力的前提下,實現區域平均蒸發散量的計算。According to the regional evapotranspiration analytical expression of heterogeneous soil surface applicable to moist climate region which is put forward in this paper, on one hand, soil water absorption is calculated under the consideration of the hydrological condition and hydraulic characteristic of soil surface ; on the other hand, using improved k - b model which is based on penman formula, the potential evaporation power is calculated
基於本文所提出的適用於濕潤氣候區非均勻地表的區域蒸散率解析表達式,一方面,充分考慮土壤表層水分狀況和水力學特性,計算土壤水分吸附力;另一方面,又充分考慮大氣條件,引進以penman公式為基礎的k - b模式(加以改進)計算潛在蒸發力。Third, based on the parameterization of the related land surface characteristics, using the probability density functions ( pdf ) and the grossly dynamic resistance method, a statistical - dynamical parameterization scheme is put forward. the mean evapotranspiration flux of lower reaches of the yangtze river is calculated by tins scheme and the results are compared with the formers " conclusions. finally, the calculated results by the statistical - dynamical parameterization scheme are compared with the mosaic method
第三,在進行了有關地表特徵物理量的參數化后,結合擬合的概率密度函數,根據總體動力掌阻抗法,提出了一種考慮網格區整體非均勻性的統計-動力參數化方案,並採用這種方案計算了長江三角洲地區的平均蒸發散通量,計算結果與以前研究者的研究成果進行了比較驗證。Cause have no test evapotranspiration ( et ) data, in this paper, using the result that calculated by fao - pm equation as comparison, the remote sensing result is analyzed and verified
在沒有實測的日蒸發(散)資料的情況下,本研究採用被公認和廣泛使用的國際糧農組織推廣使用的彭曼?蒙蒂斯方法計算日蒸發(散)量,以此作為對照進行結果檢驗。分享友人