Does power posing affect gerontechnology adoption among older adults?

Recognising the rise of an aging population and independent living among older adults, many governments and organisations have developed and promoted new technologies in the form of gerontechnologies to support the needs and enhance the well-being of older adults. However, the adoption of products using such technology remains modest among the aging population. This study introduces the notion of power in the form of power posing and examines its impact on new technology adoption, particularly gerontechnology, among older adults. Using an experimental approach on a sample of older adults exposed to an in-house near-field communication-enabled light system, the study finds that high-power poses have a greater and more positive impact on older adults’ perceived ease of use of, perceived usefulness of, and intentions to use gerontechnology than low-power poses. Implications, limitations, and future research directions are discussed.     

Consumer perception of boar meat as affected by labelling information,malodorous compounds and sensitivity to androstenone

This study aimed to assess the influence of two label conditions on the acceptance of boar meat. A central location test was conducted with 145 consumers each assessing 4 pieces of pork loin.     

Impact and Assessment of Measurement Systems that Meet the 4:1 Rule

This article considers the impact of a measurement system that meets the 4:1 rule. Probabilities of accepting a bad part and rejecting a good part are evaluated. A simulation study calculates the increased estimates of the population standard deviation when the measurement error is ignored, where both non‐trending and trending populations are considered. Also, the impact of sample size is evaluated on estimates and upper confidence bounds of the measurement system standard deviation that are used to assess the 4:1 rule capability; both measurement systems from a single and multiple sources of variation are explored. Copyright © 2014 John Wiley & Sons, Ltd.     

基于链路优先的快速协同虚拟网络映射算法

在网络虚拟化环境中,为了减少链路映射成本和提高收益,提出了一种链路优先的协同映射算法。该算法交替映射链路和节点,并使用贪心思想优先将带宽资源需求较大的虚拟链路映射到跳数较少的物理路径上,最终达到降低虚拟网络平均消耗和提高虚拟网络接受率的目的。仿真结果表明,与已有算法相比,所提算法节约了链路映射的成本,提高了虚拟网络接受率和物理网络收益,算法运行时间也有效缩短。     

人防工程竣工验收评估系统设计与实现

为提高人防工程竣工验收评估工作的规范化和自动化水平,设计并实现了人防工程竣工验收评估系统。给出系统的总体设计方案,并确定了系统的功能结构。在对人防工程常见质量问题广泛调研的基础上,结合人防工程相关标准规范,制定了人防工程竣工验收评估的指标体系。使用层次分析法,计算得到了指标体系中各指标的权重,并对系统使用的评估算法进行了详细阐述。最后,基于微软VisualStudio开发平台实现了系统的各个功能模块。     

浅谈消防报警系统与联动控制工程的检测验收

消防报警及其联动控制系统在对于建筑物的防火、灭火方面具有十分重要的作用。本文首先对整个系统作了概述,对其在建筑物中的作用和检测验收的重要意义进行了说明,其次论述了要进行检测验收的基本条件,最后对整个系统的检测验收过程和内容进行了探讨。     

Evaluation and optimisation of receiver height in a compound parabolic collector with low acceptance angle

This research presents the method of finding an optimised location of a tubular receiver for a compound parabolic collector (CPC) with 6° acceptance angle. Due to low acceptance angle, reflected rays concentrate below the focus of a parabola. Graphical ray tracing (GRT) approach is implemented to execute the optical analysis with and without manufacturing error in the collector. It is performed on collector–receiver combinations by varying receiver height below the focus and they are compared on the basis of utilised area and projection ratios. The ideal cases of collector–receiver combinations which contribute high utilisation and projection ratio are selected and verified with the camera target method (CTM) performed on the actual set-up. It is built for water heater application to validate the results obtained from GRT and CTM. The thermal performance of CPC at various receiver heights is compared by thermal efficiency and therefore the optimum receiver height is concluded.     

Application of sliding seismic isolator to building structures considering cost,performance and inspection: a case study

Seismic isolation system (SIS) of building structures can lead to reduction of the structural response to earthquake ground motion and improvement of structural safety. This paper introduces a sliding seismic isolator with mass energy regulator springs (SSIM) as a SIS type, and presents the application procedure of the SSIM to an existing building structure considering the probability that the SIS application leads to cost–benefit, the seismic performance evaluation of the building structure and the efficient SIS inspection after earthquakes. Based on a decision tree considering the probability of earthquake occurrence during the service of a building structure and functionality of the SIS against earthquakes, cost–benefit from installing a SIS is formulated, and, probability that the SIS application leads to cost–benefit is estimated. In the seismic performance evaluation, the fundamental period and structural response acceleration to the horizontal ground motion of the building with the SSIM are assessed. Furthermore, the efficient SIS inspection plan after earthquakes is investigated based on the acceptance sampling. The existing building structure, information and communications technology center of Syiah Kuala University located in Banda Aceh, Indonesia is applied for the case study.     

混合交直流主动配电网接纳裕度双重不确定性优化模型

接入的电能超出配电网接纳裕度时,为使充电接纳裕度最大化,风光出力波动最小化,提出混合交直流主动配电网接纳裕度双重不确定性优化模型。获取双重不确定因素,以电动汽车充电接纳裕度最大化、风光出力波动最小化为目标,以节点电压、风光出力以及接纳裕度等为约束,构建配电网优化模型,并通过混沌二进制粒子群算法求解优化模型,得到迭代后的最佳优化结果,实现配电网接纳裕度双重不确定性优化。经试验验证：通过该方法优化后,配电网的平均接纳容量从1 200 kW达到了2 000 kW左右,且始终保持在接纳裕度的优质区间内;接入不确定性电能类型后,节点的电压越限概率均最高在2.7%,各节点产生的弃能均保持在6 MW·h以下;各节点在峰时接入风、光机组时,风、光出力的最高波动值依然低于3.5 kW·h;当配电网处于恶劣环境下,日常接入不确定性电能时,配电网的有功网损处于0.25～0.40 MW之间。     

行人过街延误研究

分析了无信号控制下行人过街的机动车和行人的运行特征、穿插特征,确定了行人穿越机动车的可穿越间隙,针对行人一次穿越一条车道和多条车道出现可穿越间隙下过街两种情况推算出行人过街平均延误的计算方法.分析了信号控制无干扰情况下行人过街的机动车和行人的运行特征,描绘出了行人的聚集和消散示意图,得出行人过街平均延误的计算方法.分析了在信号交叉口处行人过街有干扰情况下行人延误的产生机理,给出行人过街的平均延误计算方法.