监视和测量设备的控制——写给从事管理体系认证的工作者

监视和测量设备是组织提供的产品是否符合规定要求的耳目和神经。因此,组织的监视和测量设备必须灵敏、准确,并满足产品的需要。本文首先分析了监视和测量设备控制的总体要求,指出应按照需求,配备合适的监视设备和测量设备。     

CDIO教育模式在高职建筑设备专业教学中的应用

为培养高素质的"卓越现场工程师",需要职业教育创新教学模式,在分析高职建筑设备工程技术专业传统教学模式基础上,引入了CDIO教育模式,并对CDIO在高职建筑设备工程技术专业教学中的应用进行了探讨,为高职教师进行教学模式改革提供了指导。     

单车场无时间窗甩挂运输车辆调度的启发式算法

考虑了牵引车空驶、带空挂车行驶和带重挂车行驶所引起的成本差异，定义了牵引车运行成本的概念，将总运行成本最小作为调度方案优劣的判别指标，并同时考虑牵引车数量最少。将牵引任务分为四种类型，定义了任务链、虚拟任务、链内交叉和链间交叉的概念，提出了一种求解该类单车场甩挂运输车辆调度无时间窗约束的启发式算法，包括初始调运方案、链内优化、空车调运交叉、牵引车数量优化和链间交叉。最后给出了仿真算例，算法优化后的最终方案与初始方案相比，牵引车数量减少，总运行成本降低，验证了算法的有效性和可行性。     

Does Medical Equipment Expansion Lead to More Diagnostic Services? Evidence from China’s Sichuan Province

A major goal of China’s healthcare reform is to control the increasing healthcare spending, much of which can be attributed to the overuse of diagnostic tests and has been relatively less studied in the literature. This article analyzes the correlation between medical equipment expansion and the increase in diagnostic test expenditure in China, using Sichuan Province as an example. County-level data aggregated from hospitals’ annual reports in Sichuan Province from 2008 to 2012 were used. The results show a positive correlation between the expansion of medical equipment and the increase in diagnostic test expenditure. Our study provides implications on reforming China’s healthcare delivery system and medical equipment regulation policies.     

活用电商战略改写传统百货模式

随着电子商务的崛起和深度应用,以百货业为代表的传统零售业受到了极大的冲击,为了研究百货企业在现阶段面临新的市场环境,探索零售行业开展电子商务的必要性和有效途径,本文将就银泰百货战略改革的成功经验,分析传统零售行业的改革方向.     

采气工劳动防护用品配置配备标准分析探讨

针对采气工在生产工作中所处的工作环境,分析了其对人体的7个部位可能造成的伤害,提出了"配置到站"与"配置到人"两种配置模式,从标准的适应性和经济性进行了分析,并提出了相应的劳动防护用品配置标准的改进建议。     

X频段信标机的设计与实现

为满足船载X频段测控设备信道相位修正和伺服性能检查的需要，设计并研制了一款X频段信标机。首先，选用HMC765LP6CE芯片，利用频率合成技术设计了信源并通过通用串行总线（USB）实现了发射频率用户自定义；其次，针对安装平台面积小的限制，基于高频结构仿真器(HFSS)设计了高次模微带天线并完成了仿真分析和指标优化；最后，完成了X频段信标机的工程实现并给出了硬件电路结构和软件程序设计方法。经测试,该信标机锁相效果良好，控制简便，性能可靠,满足用户使用要求。     

智能自助售药设备的研究与应用

近些年来，为了改善我国医疗系统就诊密度大，看病买药难的问题，政府出台了一系列的政策措施，鼓励并引导人们就近在社区医院或门诊看病购药。自助售药机作为一种新型自助服务终端，在结合了物联网、大数据等技术后，可节省医院一部分医疗资源，实现患者自主问诊取方购药，有效的缓解了我国现行医疗资源紧张的现象。该文以几种最新出现的智能自助售药设备作为研究对象，通过对其功能特点进行详细阐述，分析了各类自助售药设备的结构模块和工作原理，并对可能存在的问题提出了一些看法，最后针对未来智能自助售药设备的发展前景进行了探讨与展望。     

The effect of cell phones on international motor vehicle fatality rates: A panel-data analysis

This paper analyzes the effects of cell phone usage and economic freedom on motor vehicle death rates by estimating regression models on data for three years across 38 countries. The models incorporate a representative set of motor vehicle fatality determinants. Results indicate that cell phone use has a statistically significant nonlinear impact on highway death rates and that economic freedom does not appear to have an effect.     

Dually sustainable urban mobility option: Shared-taxi operations with electric vehicles

Electric vehicles (EVs) are energy efficient and often presented as a zero-emission transport mode to achieve long-term decarbonization visions in the transport sector. The implementation of a sustainable transportation environment through EV utilization, however, requires the addressing of certain cost and environmental concerns such as limited driving range and battery-charging issues before its full potential can be realized. Nevertheless, a specific type of use of EVs, namely in taxi services, may elicit positive public opinion, as it promises a commitment toward sustainability in urban life. In light of this, this study proposes an integrated approach that combines EV operation with a conceptual design for shared-ride taxi services. As some productivity loss may be naturally expected due to the time spent in charging, it is important to look at whether such performance loss from the passenger and system standpoints can be offset with ingenuity in operational design. In this study, an EV taxi charge-replenishing scheme that can be coupled with a real-time taxi-dispatch algorithm is designed. The proposed EV charging schemes for taxi services are studied via simulations and the effects of the limited driving range and battery-charging details are examined from a system performance viewpoint. The simulation study also reveals illustrative results on the impact of the EV taxi fleet's operation on the charging system. Next, a real-time shared-taxi operation scheme that allows ride sharing with other passengers is proposed to maximize the operational efficiency. The simulation results suggest that the shared-taxi concept can be a viable option to improve on the limitations caused by EV operation. In addition, the importance of projected charging demands and queue delays at different charging locations are also addressed. Some limitations and a future research agenda are also discussed.