A joint model based on interactive gate mechanism for spoken language understanding

Applied Intelligence - Slot filling and intent detection are two important tasks in a spoken language understanding (SLU) system, it is becoming a tendency that two tasks are jointing learn in SLU....     

跨越三种孔隙度地层的垂直裂隙对有机朗肯循环地热发电性能影响

建立了一种垂直主裂缝跨越3层不同孔隙度的地热储层模型,对增强型地热系统的地热储层进行数值模拟,并将其与有机朗肯循环发电性能进行耦合和分析,计算和分析了注入温度、注入流量、裂隙宽度和裂隙粗糙度4个储层参数对生产井产能和干热岩发电性能影响,最终定量分析了4种特征对生产井温度和单位输出功的不同影响度。结果表明系统在前30年工作周期内,在第5年之前,改变注入温度对增强型地热系统的影响较小。在不考虑储层中换热流体渗漏的情况下,注入井流量越大,生产井温度越低;注入井温度越高,生产井温度越高。对于地面发电系统,注入温度对发电性能影响最显著,注入流量对地面发电系统影响较小,即地热储层结构对发电系统的输出功、效率及■损失有决定性的影响。     

基坑工程围护结构施工工艺的案例探究

文章结合某大厦基坑围护工程这一实例，对三轴搅拌桩、钻孔灌注桩、旋喷桩、轻型井点降水、土方开挖等基坑围护的施工工艺进行了探讨与分析。     

模糊数学在采矿方法优选中的应用

采矿方法选择是否合理对矿山企业的经济效益影响重大，为改进采矿方法选择中的工程类比法，本研究介绍了利用模糊数学方法优选采矿方法的原理、步骤、隶属函数的描述方法及权系数的确定方法等，并将这一方法用于牟平金矿的采矿方法选择中，所预测的指标得到了生践实际的验证，表明模糊数学方法是可用的。     

矿井勘探眼无线监测系统设计

为了满足矿井勘探眼监测系统要求及监测网络化需求,设计了矿井勘探眼无线监测系统,给出了监测系统的整体构成,重点介绍了主站通信程序及上位机监控软件设计。测试结果表明,该系统性能稳定,具有很好的实用价值。     

Experimental comparison of R245fa and R245fa/R601a for organic Rankine cycle using scroll expander

An experimental test was conducted to compare R245fa with R245fa/R601a on the organic Rankine cycle performance. The major objective of this paper is to ascertain the highest thermal efficiency and the optimal dimensionless volume ratio using the two working fluids. The experimental system consists of an electrically heated boiler, a vapor generator, a scroll expander, a condenser, a working fluid pump, and so on. For the typical weather conditions of May in Tianjin, the experiment results show that the working fluid charge has an important influence on the organic Rankine cycle performances. The optimal isentropic efficiency of the scroll expander corresponds to the design expansion ratio. Underexpanded and overexpanded processes result in the decline of the isentropic efficiency of the scroll expander, with the former playing a major role. R245fa/R601a improves the heat transfer performance in the vapor generator because of the nonisothermal phase change. The highest thermal efficiency for R245fa and R245fa/R601a is 4.38% and 4.45%, thereby illustrating that R245fa/R601a precedes R245fa. The optimal dimensionless volume ratios for R245fa and R245fa/R601a are 0.38 and 0.41, respectively. The experimental test lays foundation of the 500‐kW geothermal plant for demonstration in the next step. Copyright © 2014 John Wiley & Sons, Ltd.     

不合格测量设备的处置

不合格测量设备的处置是测量设备确认体系要素之一，在贯标中应建立相应的不合格测量设备处置管理程序，以实现对不合格测量设备进行有效的控制。