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The application of orthogonal experiment to the assessment of the management of almond forest was investigated.

探讨了正交试验法在辽西地区山杏林地经营管理技术评价中的应用。

The recombinants with different multiple copies of amyL integrated in the chromosome were identified by real-time PCR and evaluated by shake-flask fermentation.

对转化子的amyL拷贝数及其BLA发酵水平分别用荧光实时定量PCR及摇瓶发酵试验进行评价与鉴定。

The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.

本文主要工作既创新点体现在以下几个方面:(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型,并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题,如边界条件、空间离散格式和时间推进格式、时间步长选择等问题,为大涡模拟在室内气流计算中的广泛应用打下了基础;(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布,并探讨了多射流流场的动态特性和流动规律;(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标,首次系统地提出了动态热舒适评价指标体系的概念:即基于时间平均参数的热舒适指标PD、PPD、PMV;基于瞬时参数的瞬时热指标IPD、IPPD、IPMV;基于时间平均热舒适指标TAPD、TAPPD、TAPMV;以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV,并分析了四类热舒适指标的差异性和计算方法,还以PD值为例对四类指标分别进行了计算;(4)基于数十种工况下空调房间大涡模拟的结果,研究了空调建筑上送上回和侧送侧回两种情况下热分层现象,并探讨了热分层的基本规律,首次提出了避免热分层现象的判断公式;(5)在暖通空调领域,首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备,完成了与大涡模拟相对应的模型试验,并把实测结果与仿真结果进行了对比,说明LES在室内气流仿真方面是一种很有前景的方法。

Peters 4d inhibition test were used to determine the antimalarial activity of different ingredients of Artemisia annua L.

实验采用鼠疟模型及Peters 4天抑制试验法,对从青蒿中分离得到的主要化学成份及其与青蒿素伍用进行了药效学评价。

Objective To assess the value of 16slice spiral CT coronary arteriography combined with treadmill exercise testing in diagnosing coronary heart disease.

目的:评价16排螺旋CT冠状动脉显像联合运动平板试验对冠心病的诊断价值。

This study assessed the current surrogate value of the test.

这个研究评价了梅毒血清学试验目前的替代价值。

Moreover, we should enthusiastically explore, audaciously experiment, quickly assess our experience, and blaze a variety of new trails to introduce public ownership in a form that is compatible with production for the benefit of the whole country.

而且, 我们应该热情探索,大胆试验,迅速评价我们的经验,并且以多种方式实施,使公有制和整个国家的利益一致。

On the basis of lab test, this paper evaluates the stability of the high-concentration polymeric system awl researches the effect of polymeric concentration and molecular weight on displacement efficiency.

在室内试验的基础上,进行了高浓度聚合物体系黏度稳定性评价,并对体系的浓度和相对分子质量对驱油效果的影响进行研究。

Methods Appraised the major technological processes for synthesising the benzocaine.

方法评价了合成苯左卡因的主要合成路线,在较优合成路线的基础上进行了试验研究,在酯化反应阶段进行了工艺改进并优化反应条件。

This paper through field test and theory research in the west of Heilongjiang province, analyze the water and soil loss regulation of slope farmland in blackland.

本文通过现场试验和理论研究探讨了黑龙江省西部黑土区坡耕地水土流失规律,建立了黑土区坡耕地土壤水分入渗和径流模型,并对不同作物、不同耕作处理条件下的坡耕地水土流失进行评价。

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推荐网络例句

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石!

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻,也许正是在通往天国的路上,我体验着这白色的晕旋。

When you click Save, you save the file to the host′s hard disk or server, not to your own machine.

单击"保存"会将文件保存到主持人的硬盘或服务器上,而不是您自己的计算机上。