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曲线数值
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     An Improvement on Calculating the Current Density Voltage Curve of RTD
     共振隧穿二极管电流密度-电压曲线数值计算中积分方法的改进
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     An Approach to Q-S Curve Numerical Simulation Method of In-Situ Piles Carrying Vcrtical Loads
     竖向受荷灌注桩Q—S曲线数值模拟方法的探讨
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     Numerical Simulation of Stress-Strain Curve of Duplex Stainless Steel
     双相不锈钢应力应变曲线数值模拟
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     A RESEARCH ON NUMERICAL CALCULATION METHOD FOR LOADDISPLACEMENT CURVE OF SINGLE PILE
     一种单桩荷载-位移曲线数值计算方法的探讨
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     Numerical Simulation of Stress-Strain Curve of weathering dual-phase steel
     耐候双相钢应力-应变曲线数值模拟
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  相似匹配句对
     curve
     曲线
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     The Application of the Mathematical Model Simulating of TTT Diagram
     TTT曲线数值化的应用
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     Analysis of numerical integration on the similar curves
     一类自相似曲线上的数值积分
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     Phillips Curve
     菲利普斯曲线
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     (2) numerical simulation;
     数值模拟;
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Application of SCS curve number method for irrigated paddy field
      
The runoff curve number (CN) for irrigated, level-terraced paddy fields was estimated from measured rainfall and runoff data.
      
The runoff water available for artificial recharge in the basin is estimated through Soil Conservation Service curve number method.
      
The weighted curve number for each watershed is obtained through spatial intersection of land use/land cover and hydrological soil group through GeoMedia 3.0 Professional GIS software.
      
By use of the US Soil Conservation Service curve number method, estimated runoff potential was classified into five levels-very low, low, moderate, high, and very high.
      
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目前矿场上广泛应用的不稳定试井解释方法都是在均质单油层条件下引出的。本文建立了多层单相单井数学模型,给出了多层压力恢复曲线的数值模拟解法,并提供了一种合理选择时间步长的有效方法,给出了两个油层合采时的算例。

In this paper, the calculating of the CCT diagram, the critical cooling rate and the ideal cooling conditions obtained in two mediums are studied with the use of available TTT diagrams. The main results are as follows: The calculated CCT diagrams are in good agreement with the observed ones. It has proved that there must be some relations between the isothermal transformation and the continuous transforma- tion of austenite of steels on cooling. The accumulation effect of the relative consumption degree of...

In this paper, the calculating of the CCT diagram, the critical cooling rate and the ideal cooling conditions obtained in two mediums are studied with the use of available TTT diagrams. The main results are as follows: The calculated CCT diagrams are in good agreement with the observed ones. It has proved that there must be some relations between the isothermal transformation and the continuous transforma- tion of austenite of steels on cooling. The accumulation effect of the relative consumption degree of the incubation period is one of those relations. The calculated critical cooling rates of getting entire mar- tensite coincide with the observed ones remarkably. The fundamental principle of getting the ideal cooling con- ditions and the methods of calculating the process parameter are also studied with two cooling mediums in this paper. This method is shown to be a good way to improve the cooling quality of parts.

本文在TTT曲线数值化的基础上探讨了由TTT曲线计算CCT曲线,由TTT曲线计算临界冷却速度以及用两种冷却介质获得理想冷却条件等三个实用课题。计算工作说明,由计算得到的CCT曲线(珠光体转变开始线)和实测结果吻合良好。这证明了钢的过冷奥氏体的等温转变和连续转变之间存在着某种联系,其中孕育期相对消耗量的积累效应是联系之一。计算工作也说明,由TTT曲线计算得到的临界冷却速度(获得完全马氏体的最低冷却速度)和实测值也十分接近。文中也探讨了利用两种冷却介质来获得理想冷却条件的基本原理和工艺参数的计算方法。这对于提高零件的冷却质量提供了一个新的途径。

Time constant of pulmonary circulation and mean pressure of pulmonary artery were measured in 21 cases of silicotic emphysema by using improved Simon method. The change of the time constant affecting pulmonary arterial pressure was observed through alveolar inflation test. The results show that the general time constant is 0.77±0.40 sec. The time constant of normal pulmonary arterial pressure group is 0.64 ± 0.20 sec. while in the pulmonary hypertension group is 1.37 ± 0.55 sec. and the difference between both...

Time constant of pulmonary circulation and mean pressure of pulmonary artery were measured in 21 cases of silicotic emphysema by using improved Simon method. The change of the time constant affecting pulmonary arterial pressure was observed through alveolar inflation test. The results show that the general time constant is 0.77±0.40 sec. The time constant of normal pulmonary arterial pressure group is 0.64 ± 0.20 sec. while in the pulmonary hypertension group is 1.37 ± 0.55 sec. and the difference between both groups is significant ( P <0.01 ) . It is confirmed that the time constant increased can produce the increase in pulmonary arterial pressure especially in the diastolic pressure.

用改良Simon动脉舒张压力曲线数值拟合法测量21例矽肺肺气肿患者的肺循环时间常数和肺动脉平均压力。并通过肺泡加压法改变肺循环时间常数观察肺动脉压的变化。结果总时间常数为0.77±0.40秒,其中肺动脉压正常组为0.64±0.20秒,高压组为1.37±0.55秒,两者差异有非常显著意义(P<0.01)时间常数增大确能提高舒张压为主的肺动脉压力。

 
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