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Presents the design of air conditioning and ventilation system, especially the design of the ice storage and modular water boiler system.
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摘要介绍了该工程的空调通风系统设计，着重介绍了冰蓄冷和模块化热水锅炉的设计。 |
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Presents the detailed calculation method for sigma level and process capability index, establishes relation among Sigma level, process capability index and reject rate through research for fluctuation of quality character process and probability distribut
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摘要通过对质量特性过程的波动和概率分布的研究，结合对不合格品率的系统分析，给出西格玛水平和过程能力指数的详细计算方法，建立西格玛水平、过程能力指数及不合格品率之间的联系，拓展六西格玛管理的研究内容，给企业管理层提供了质量评价决策依据。 |
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Presents the field test data around a year of a groundwater source heat pump with pumping and recharging in the same well (GSHPPRSW) project in Beijing, including the inlet and outlet groundwater temperature, groundwater flow rate and temperature of obser
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给出了北京某同井回灌地下水地源热泵工程近一年的现场试验数据，包括进出口水温、地下水流量、测井温度。 |
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Presents the ground-source heat pump air conditioning system design for a villa in Beijing, puts forward the issues deserved to be noticed during design process, and summarizes the operation condition.
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摘要介绍了北京某别墅建筑地埋管地源热泵系统的设计，提出了设计中应注意的问题，并对该建筑的运行情况进行了分析和总结。 |
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Presents the investigation of the heat conduction behavior, internal thermal stress field of specimen under thermal shock and microscopic damage and failure of the tungsten based composites by combination of macroscopic and microscopic analyses and integr
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从材料设计的思想出发，采用宏观与微观、材料科学与力学相结合的方法，对钨基复合材料的热传导行为、材料在热冲击载荷下的内部热应力场及材料细观结构的破坏行为进行了详细的理论研究.根据钨基复合材料的细观组织结构建立了材料细观模型.在宏观分析的基础上，分析了材料微结构内部的破坏行为.分别取试件心部与边缘主应力值最大点的应力状态，施加在所建立的模型上，用有限元方法计算了模型内部的弹性应力场.结果表明：试件主应力最大值首先产生在试件内部，此时，如果材料发生破坏将先从夹杂中开始；加热一段时间后试件中的最大主应力值转移到试 |
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Presents the main contents related to building energy consumption in US Energy Policy Act of 2005, including improving energy efficiency, setting new energy efficiency standards, promoting development and utilization of renewable energy etc.
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摘要介绍了美国《2005能源政策法案》中有关建筑节能方面的主要内容，包括提高能效、设定新的能效标准、促进可再生能源开发利用等。 |
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Presents the main factors influencing indoor air quality and the correlative stipulation in the Code for Indoor Air Quality.
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摘要论述了室内空气质量的主要影响因素和《室内空气质量标准》中的相关规定。 |
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Presents the mathematical expressions of adding new learning sample and adding new redial basis function of relearning algorithm, studies how to get the new learning sample.
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详细给出了径向基函数神经网络再学习算法中增加新训练样本和增加新基函数的数学公式，同时对如何获取新的训练样本进行了研究。 |
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Presents the neural network based prediction of software faults in integrated navigation system including the prediction of number of faults by a single layer of network only to reduce training time, and a new static reliability model suitable for predict
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在早期的软件开发寿命周期里，软件的质量模型包含确定有缺陷的模块和预测错误数.在大规模组合导航软件系统中，质量控制的主要任务就是要精确地估测程序模块中存在的缺陷数.本文给出了用神经网络技术估测程序中的缺陷数的方法，预测缺陷数一般用单隐层网络就可以，因为多隐层网络将相应占用更多的训练时间.本文还介绍了一种新的静态可靠性模型，根据软件复杂度，估测了质量及质量拟合度，并且与传统回归技术进行了比较，仅用单隐层神经网络模型就比传统的统计模型预测质量好.当应用于一批大型组合导航软件系统的数据时，神经网络技术表明，它的确 |
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Presents the on-off control mode of refrigerating machine by supply and return water temperature difference and load proportion with an example.
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摘要以具体的工程实例介绍了利用供回水温差和机组负荷百分数进行机组台数启停控研究制的方法。 |
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Presents the operating principle, deduces the temperature-saturated steam pressure relationship, analyses the force balance of valve plates, and points out the factors determining the action of valve plates and the key problems in making this trap domesti
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摘要介绍了膜盒式蒸汽疏水阀的工作原理，推导得到了膜盒内介质的温度－饱和蒸气压关系式，分析了阀片的受力平衡，指出了决定阀片动作的因素和膜盒式蒸汽疏水阀国产化进程中要解决的关键问题。 |
