EVA共聚物的性能与应用

EVA共聚物广泛用作电线电缆中的热收缩材料,半导电屏蔽材料和阻燃绝缘材料,本文简要综述EVA共聚物的基本性能。     

高效快速纤维球过滤器的应用

介绍了纤维球过滤器的特点、工作原理及其在脱盐水装置中的应用效果。     

Cloud based intelligent system for delivering health care as a service

The promising potential of cloud computing and its convergence with technologies such as mobile computing, wireless networks, sensor technologies allows for creation and delivery of newer type of cloud services. In this paper, we advocate the use of cloud computing for the creation and management of cloud based health care services. As a representative case study, we design a Cloud Based Intelligent Health Care Service (CBIHCS) that performs real time monitoring of user health data for diagnosis of chronic illness such as diabetes. Advance body sensor components are utilized to gather user specific health data and store in cloud based storage repositories for subsequent analysis and classification. In addition, infrastructure level mechanisms are proposed to provide dynamic resource elasticity for CBIHCS. Experimental results demonstrate that classification accuracy of 92.59% is achieved with our prototype system and the predicted patterns of CPU usage offer better opportunities for adaptive resource elasticity.     

特种工程塑料聚芳醚酮

介绍了聚芳醚酮的发展概况、分类及其物化性能;重点对PEEK的性能及应用进行详细阐述;概述了PEEK 的最新研究成果,并指出其今后发展趋势。     

基于BACnet/IP的设备与实时数据库通信实现

针对不同厂商、不同系统的楼宇自控设备互操作、互通信的局限性,分析了BACnet/IP技术和实时数据库,设计开发了一种基于BACnet/IP技术的实时数据库DasRdb的设备驱动程序。该设备驱动程序采用UDP通信方式,通过调用每个BACnet/IP设备的标准接口函数来驱动实时数据库DasRdb分别进行写操作和读操作,能够有效地实现BACnet/IP设备与实时数据库DasRdb之间的通信,从而使楼控设备的互操作成为可能。现场工程应用表明,该程序的运行契合BACnet的一致性要求,具有简单、高效、精确度高、实时性好的特点。     

频率量转换数字量的集成电路设计技术

传感器在各领域有着广泛应用,为了测试传感器输出的频率值,在传感器与计算机之间需要一种可以将频率量转换为数字量的专用集成电路。介绍了输出为频率量的传感器测试基本原理,设计了基于这种传感器而研制的专用集成电路,介绍了其电路功能,电路逻辑结构,电路核心器件逻辑设计及功能验证。     

以实例为切入点的高职物联网应用技术专业教育第一课

物联网技术发展迅速,但高职物联网应用技术专业教育尚处于初期,因而科学、直观、紧扣实际、有效激发学生专业学习的第一课尤为重要。以物联网应用技术实例为专业教育切入点,采用阶梯式递进的方法带领学生走进物联网,感知物联网,从而充分调动学生专业学习积极性,更好地让学生了解专业人才定位,明确学习目标和就业方向,为整个物联网应用技术专业教育打下坚实基础。     

改良FMC技术生产CS2工艺流程

介绍国内外CS2生产工艺发展情况，讨论了改良FMC技术生产CS2工艺及应用。     

低挥发分煤在新型干法窑生产中的应用

对劣质煤、低挥发分煤的燃烧特性分析,工艺设备分析,提出预分解窑烧劣质煤、低挥发分煤的可能性、必要性,为我公司烧劣质煤、无烟煤打下了基础。     

Transfer efficiency for airless painting systems

Spray transfer efficiency (TE) is defined as the mass fraction of sprayed paint which is deposited on the intended target, the remainder of the sprayed paint becomes undesirable overspray. The relationship between TE and gun supply pressure (or paint mass flow rate), gun-to-target distance, gun traverse speed, the angle of the spray gun relative to the target (gun-to-target angle), plus spray cone angle is reported herein for a typical fan spray system. Experimental results indicate that spray momentum rate (SMR) and droplet size dictate the TE for the various combinations of parameters considered here. The key finding is that TE correlates with SMR and spray mean drop size (Sauter mean diameter, or D₃₂) via an expression of the form TE=a+b SMR − c (SMR)²+d D₃₂, where a, b, c, and d are coefficients, determined by fitting the experimental data, and SMR is estimated via SMR=m²/ρA, where the paint mass flow rate m, the paint density is ρ, and the gun exit orifice effective tip cross sectional area is A. This expression accounts for physical phenomena that govern sprayed droplet deposition characteristics, such as entrainment, bounce-back, and drop size. Experimental results also show that, for the range of parameters studied, gun traverse speed has no effect on TE, but increasing the angle of the spray gun relative to the target (gun-to-target angle), increasing the spray cone angle, or increasing the gun-to-target distance will decrease TE.