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Ment equation and error formula in the process of practical measurement.

最后,本文通过实验研究了距离对于医用红外热像仪测量精度的影响,得到了一个理想距离,在这个距离上能使这种红外热像仪测量误差最小,论文最后通过测量多组人体耳垂的平均温度的实验验证了结论。

In order to solve the problem of demolition cutting of pipes in an ex-service nuclear-powered submarine , a cavity effect cutter and timed ignitor are designed and prepared on the basis of comprehensively considering various influential factors, and tests of cutting and timed detonating stainless pipe were carried out, the tests can be references in practice.

本文对退役核潜艇管道拆除切割问题,在综合考虑各方面影响因素的基础上,设计、制作了聚能切割器及其定时起爆装置,并进行了不锈钢管的聚能切割实验和定时起爆实验。

With the investigation of the domestic and foreign literature systematically, the bases on the domestic and foreign present research and the comprehensive utilizations of the various knowledge of fluid mechanics in porous medium, reservoir engineering, mathematical physics, perforation completion, numerical simulation and so on, this article takes numerical simulation of gas reservoir of water solubility as the research aim which has completed following research works and obtained the corresponding research results: it analyzes the nature of the Water-soluble gas and formation water as well as the influent factors of the solubility through the study of massive materials; It establishes mathematical models three-dimension, the dual medium, the gas-water phase through the way of finite difference in the migration of water-soluble gas, which describes the entire process of release, migration and production in formation, where it considered the problems of variable bubble point; According to the numerical models of gas reservoir of water solubility it provides solution procedure that based on black oil model; It discovers that there will obtain the good effects in the lowly speed of development through simulation; the reinjection of formation water may largely enhance the produce degree of water-soluble gas when we consider reinjection in simulator; It considered the influence of perforated completion on development so as to increase the simulator"s versatility, It discovers that the simulator may reflect the conditions of development when we exanimate he simulator"s reliability with the empirical datum.

本文以水溶性气藏数值模拟研究为研究目标,在系统调研国内外文献、深入分析国内外研究现状的基础上,综合利用渗流力学、油气藏工程、数学物理方法、射孔完井以及数值模拟理论等多方面的知识,完成了以下研究工作并取得相应的研究成果;①通过对大量的资料调研,分析了水溶气、地层水性质、储层地质性质以及影响气体在水中溶解度的因素。②考虑到由于高压产生的大量水力裂缝,采用有限差分方法建立水溶气运移的三维、双重介质、气-水两相全隐式数学模型,该模型描述了水溶气在地层中的释放、运移和采出的整个过程。③在原有黑油模型的基础上,根据水溶性气藏数值模型编制了该数值模型的求解程序,该程序可以求解单重、双重介质两种情况。④通过模拟不同开采速度对水溶气开发效果的影响,发现开采速度较慢的时候可以取得较好的开采效果。⑤在模拟器中考虑了注水对水溶性气藏开发的影响,地层水回注可以大幅度提高水溶气的采出程度。⑥为增加模拟器的通用性,在模拟器中考虑了射孔完井方式对开采的影响。⑦检验模拟器计算的可靠性,发现在使用实验数据对水溶性气藏进行模拟时,模拟器可以很好的反映气藏开发的状态。

Based on single-factor experiments, orthogonal experiments were performed to optimize the extractive conditions.

在单因素实验的基础上,设计了的正交实验来确定溶剂提取大豆异黄酮的最佳工艺条件。

Now the controllability theory in linear systems over the field R of real numbers has been heavily studied. This theory is efficacious for analyzing the characters which are determined by the value of physical parameters and system structure, nevertheless a practical system has a definite structure and has approximate, even unknown parameter sometimes because of a limit to experiment conditions, or a limit to making technology, the errors of observation. It is inconvenience for a linear system over the field R of real numbers to analyze the structure characters of a physical system, such as structural controllability.

目前,实数域上的系统的完全能控性理论研究已经很成熟了,它用于分析系统结构和物理参量的值共同决定的那些性能是有效的,然而,在工程中,由于实验条件或者制造工艺上的限制和观测上的误差,以及人为地对数据的近似处理,一个实际系统往往其结构是确定的,而参数只是近似的甚至未知的,实数域上的系统不便于分析物理系统的结构性质,如结构能控性。

The results indicate that there are four factors, such as gaseous phase space velocity, liquid phase space velocity, temperature and time, which have influence over the process of coking.

为此,在进行理论分析和预实验的基础上,进行了正交实验,结果表明,除时间外,气空速、液空速和温度也是影响非催化结焦的主要因素。

By doing Micro-Controller, so as to wholly hydraulic cycle. Based on remaining the dismantling and loading, we make full of the equipped instrument. Several types of valves are linked through gluey tube.

通过单片机,实现整个实验台的控制,在保留其元件可拆装性的基础上,我们充分利用现有液压实验台的液压元件,对其基本回路进行重新组合,用调速阀,溢流阀,节流阀等通过胶皮管连接成所需要的回路。

These results indicated that a well structured anatase TiO2 was obtained by impregnation method under 500℃. Flow rate, in the activity test, could be neglected for mass transfer effects. As a matter of fact, relative humidity played the most important role in this reaction. The highest removal efficiency was obtained while relative humidify of 56.8%. Water molecules are sources of ; however, excessive water molecules could inhibit reactions by competing activity sites with organic containments. In the regeneration test, photocatalyst could be reactivated through a running water vapor with UV light illumination process.

研究结果指出,以含浸法制备之触媒於500℃锻烧下,具有良好的锐钛矿晶体结构;另外在活性测试的部份,流量的增加,污染物之去除效果不受影响,所以本实验选择以200ml/min之流量可忽略质传影响;湿度扮演重要的角色,当RH=56.8%时去除效率最高,主要因水气是产生氢氧自由基的主要来源,但是过多之水气可能与有机物竞争触媒表面上的活性位置,因而抑制反应的进行;初使浓度对去除率之影响中得知,初使浓度的高低不会影响触媒对有机物的催化能力,实验使用之触媒量适合催化200~250ppm之有机物,可藉由增加触媒量提高对有机物之催化能力;此外再生的测试,触媒可经由连续曝水及紫外光的照射,使触媒恢复原有的活性,可再次利用。

In a 600 mm diameter column, hydromechanics of CTST-8 including pressure drop, entrainment and weeping liquid was studied.

在直径600mm的实验塔上对CTST-8的塔板压降、雾沫夹带、漏液等流体力学性能进行了实验。

The test method of tannic acid, preparation method of water sample, test method of ignition point and experiment method of head loss for activated carbon are introduced based on the abroad references and much year practice.

介绍了测活性炭的单宁酸的试验方法,水样制备方法,着火点的试验方法,压力降的实验方法,是在作者对国外资料吸收和多年实践的基础上编写的这些实验方法。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。