indexes
- indexes的基本解释
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[变形] index的第三人称单数
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n.
索引, 指针, 指数, 指标
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vt.
编入索引中, 指出
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vi.
做索引
- 相似词
- 更多 网络例句 与indexes相关的网络例句 [注:此内容来源于网络,仅供参考]
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Sensatory indexes, physicochemistry indexes, hygeian indexes, safty indexes, nutrition indexes, quality control indexes, efficacy indexes and other specific indexes have made up the quality standards of health wine.
保健酒质量标准包含感官指标、理化指标、卫生指标、安全指标、营养指标、品质控制指标、功效指标和其他特性指标。
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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。
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Based on the example of shahe reservoir, the text makes an analysis on circulation, management and environment and social economy development condition of the surrounding ecosystem. Then, the author carries on inquisition, data analysis and summary and makes calculation and demonstration of the safe stability of the dam ,and discusses the risking obviation and reinforcing technique. Finally, based on the existing research of sustainable development, experts" opinions and Mathematical Statistics analysis, the author brought forward an indication system suitable for reservoirs" sustainable development This system is made up of 4 first class indexes, 13 second class indexes, 38 foundational indexes. The 4 first class indexes are the dam safety evaluating index, the management index of reservoirs, the water ecosystem system stability index, the reservoirs construction effect index. The 13 second class indexes are the construction quality evaluating index, the dam running and management evaluating index, the flood control standard recheck index, the structure safety evaluating index, the anti- earthquake evaluating index, seepage safety evaluation index sign, the metal structure safety evaluating index, the engineering facility index, the management index, the water ecosystem system stability index, engineering effect index, the economic development index, the society development index.
本文以沙河水库为例,对其运行、管理及周围生态环境和社会经济发展状况进行调查,并将调查资料进行分析、归纳、总结;然后对水库大坝的安全稳定情况作出了简要的计算和论证,并讨论了水库的主要除险加固技术;最后在总结现有可持续发展研究的基础上,征集专家的意见,进行数理统计分析,提出了由4个一级指标、13个二级指标、38个基层指标组成的一套适合该水库可持续发展的指标体系。4个一级指标分别为:水库大坝运行安全综合评价指标、水库管理指标、水资源生态系统稳定性指标、水库建设效应指标;13个二级指标分别为:工程质量评价指标、大坝运行管理评价指标、防洪标准复核指标、结构安全评价指标、抗震安全评价指标、渗流安全评价指标、金属结构安全评价指标、工程设施指标、管理指标、水资源生态系统稳定性指标、工程效应指标、经济发展指标、社会发展指标。
- 更多网络解释 与indexes相关的网络解释 [注:此内容来源于网络,仅供参考]
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Indexes:索引
其中又分别提供"关键词"(Keyword)、"主题"(Subject Term)、"出版物"(Publications)、"索引"(Indexes)、"参考文献"(References)等多种检索途径. 两大类检索方式除关键词检索功能不同外,其它检索功能均相同.
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Indexes:指标
一开始谈到了变项的测量,包括了两种复合性的测量,就是指标(indexes)和量表(scales). 这两个概念我在阅读本章之前,也是对於它们之间的差别产生疑惑,因为两者皆是对变项做次序性的测量,将分析单位做依序的排列,因此预习之后才比较清楚两者的差异,
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Indexes:导出索引
INCTYPE 增量导出类型 | INDEXES 导出索引 (Y) | RECORD 跟踪增量导出 (Y)
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Indexes:导入索引
INCTYPE 增量导入类型 | INDEXES 导入索引 (Y) | COMMIT 提交数组插入 (N)
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Bitmap Indexes:位图索引
2.位图索引(Bitmap indexes) 位图索引适用于一列只含有很少数量的不同的值,即low cardinality,这种索引对于只读数据库来说非常快,但是对于经常要进行更新操作来说就不适用了.
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