农村饮水安全工程评估评价指标体系的设计、标准和步骤

饮水安全工程是民生工程，党和国家对其高度重视，并为此投入了大量资金。但安饮工程的现状如何，完成的质量、效益、持续性如何，以及如何对典型而又复杂的农村饮水安全工程作一个全面、有效、及时的评估和评价，是一个值得探讨的问题。文章探讨通过运用科学的方法建立相应的绩效评价指标体系，对饮水安全工程这个财政支出项目进行绩效评估，以期全面了解农村饮水安全工程的落实情况，真正改善农村饮用水质量，解决广大农民的饮水案例问题，同时也让政府的管理效率和公共服务水平得到提升。     

菱形挂篮在连续梁施工中的设计与检算

以京沪高速铁路某特大桥(48+80+48)m预应力混凝土连续箱梁为工程实例,介绍了菱形挂篮的设计与检算分析,可为类似工程提供经验。     

高职院校职业健康与安全教育现状调查报告——以无锡高等师范学校为例

本文对高职院校学生的职业健康与安全现状进行了调查，对调查结果进行了分析，对暴露的问题提出解决建议。     

关于优化运输路线提高物流增值的一孔之见

当前我国运输成本居高不下,物流无法实现真正意义上的增值,究其原因有很多,而不合理的运输是其中一个很重要的因素。文中在提出了合理运输对物流价值增值的重要意义的基础上,阐明了优化运输路线是保证合理运输的关键,并以公路货运为例,提出了几点优化运输路线的设计思路。     

Generative Mechanisms of the Adoption of Logistics Innovation: The Case of On‐site Shops in Construction Supply Chains

Empirical studies of logistics innovations have focused on the innovation process, bypassing much the innovative artifact or solution design itself. Focusing on the artifact and solution design in a case study, we contribute to the emerging theory of logistics innovations through articulating the generative mechanisms of the adoption of logistics innovation, that is, the mechanisms through which the design of the solution enables its adoption. We study On‐site Shop, a rare example from the construction industry of a logistics innovation that has successfully migrated from a limited number of pilots to common practice. The case study is based on insights from participation in the design of the solution, and on 55 interviews conducted in a relationship triad consisting of three groups: (1) construction site users, (2) the solution designers, and (3) the suppliers. We propose that standard and efficient solution set‐up is the key enabler of logistics innovation's adoption at temporary construction sites. Communication and operating rules facilitate adoption in the triad, whereas internal and external integration further advance adoption by creating links between the innovative logistics solution and other activities. Finally, trilateral collaboration and congruent technological frames in the relationship triad sustain adoption over time.     

电子线路计算机辅助设计课程教学实践探索

根据电子线路计算机辅助设计实践性很强的课程特点,将任务驱动法应用于课程教学中。通过教学案例阐述了其教学实践的过程,此教学方法激发了学生学习的积极性,提高了学生的实践能力。     

Equipment-related injuries in agriculture: an international perspective

Injuries related to agricultural equipment are a significant cause of morbidity and mortality, in both high-income and low-income countries. Tractors are most often associated with severe injuries and fatalities. All age groups sustain injuries. Injuries to children are also prevalent because the sites of agricultural work overlap homes in rural areas. In the majority of papers reviewed, preventive methods are mostly targeted at behaviour modification and effective medical facilities, whereas only a few authors have highlighted design changes and passive measures for injury control. The effectiveness of suggested interventions is not discussed in the majority of papers except those related to roll-over protection structures, fodder cutting machines and thresher safety devices.     

Illegal mid-block pedestrian crossings in China: gap acceptance,conflict and crossing path analysis

China has experienced unprecedented economic growth and changes in urban form in the past decades. Increased urbanisation and motorisation puts pedestrians and automobiles at greater conflict. Because of China's long urban blocks (superblocks), many conflicts occur mid-block at informal or illegal crossings. This study focuses on factors influencing mid-block crossing and gap acceptance. We remotely observed illegal mid-block crossing of a six-lane urban arterial in Kunming, China, tracking 522 accepted gaps and 152 rejected gaps in a two-stage crossing (roadside to median and median to roadside). We fit a probit discrete outcome model to the data to estimate environmental determinants of gap acceptance (and rejection) behaviour, including gap size, vehicle speed, time waiting and gap lane position. We also estimate a conflict model, focusing on parameters that influence the probability of vehicle speed changes or lane deviations.     

Forces exerted by jumping children: a pilot study

Abstract

This article reports on a pilot study of the loads exerted vertically by children when jumping. The subjects of the study were 17 children, aged from two to twelve years. Measurements were made using video recordings and a force-plate. The influence of the stiffness of the base and of jumping with and without shoes was investigated. Knee flexion, push-off force (thrust) and the ratio between push-off force and body weight (relative thrust) were analyzed. Measurements of the knee flexion showed a certain consistency for each child. The angle of knee flexion during push-off follows a bimodal distribution with maxima at 60^° and 90^°. The results for relative thrust suggest a close relationship between push-off force and body weight.     

Anglo versus Hispanic Children's Influence on Parental Purchase of Cereal

Children's influence on parental purchases of cereal was investigated by unobtrusively observing 15 pair of Anglo and 15 pair of Hispanic children and their parent(s) in the cereal aisle of Allentown, Pennsylvania grocery stores. Tabulation was kept on whether the child did or did not influence the purchase behavior of their parent(s). It was found that overall, children had a statistically significant influence on their parents' purchase behavior (p < .01). Although a percentage difference existed, there was no statistically significant difference between the Anglo children's influence and the Hispanic children's influence on their parents' purchasing behavior of cereal (p < .05).