In Haigh Westergaard stress space linear combination of twin shear stress and Tresca yield functions is called the mean yield (MY) criterion. The mathematical relationship of the criterion and its plastic work rate ...In Haigh Westergaard stress space linear combination of twin shear stress and Tresca yield functions is called the mean yield (MY) criterion. The mathematical relationship of the criterion and its plastic work rate done per unit volume were derived. A generalized worked example of slab forging was analyzed by the criterion and its corresponding plastic work rate done per unit volume. Then, the precision of the solution was compared with those by Mises and Twin shear stress yield criterions, respectively. It turned out that the calculated results by MY criterion were in good agreement with those by Mises criterion.展开更多
This paper aims to present a case study that consists in the analysis of work effort per unit of software systems Development and Enhancement Projects (D&EP) depending on technological factors. That analysis was c...This paper aims to present a case study that consists in the analysis of work effort per unit of software systems Development and Enhancement Projects (D&EP) depending on technological factors. That analysis was commissioned by one of the largest public institutions in Poland. This is the COSMIC (Common Software Measurement International Consortium) function points method that is chosen by this institution as a point of reference for size of software systems developed/enhanced for supporting its functions and therefore this method is the base for the analysis of D&EP work effort per unit with regard to technological factors.展开更多
目的挖掘重症监护病房(intensive care unit,ICU)护士护理活动减少型谵妄患者工作中存在的问题,为制订ICU活动减少型谵妄患者的护理流程提供依据。方法采用描述性质性研究方法,对7家三级甲等医院的11名ICU护士进行半结构式深入访谈,并使...目的挖掘重症监护病房(intensive care unit,ICU)护士护理活动减少型谵妄患者工作中存在的问题,为制订ICU活动减少型谵妄患者的护理流程提供依据。方法采用描述性质性研究方法,对7家三级甲等医院的11名ICU护士进行半结构式深入访谈,并使用Colaizzi 7步分析法进行数据的收集及整理,分析提炼出主题。结果分析得出ICU护士护理活动减少型谵妄患者工作体验的5个主题,分别为:ICU护士活动减少型谵妄知识不足;培训存在较多问题;医护重视程度不够;早期识别困难;管理现状不佳。结论护理管理者应在未来优化培训内容,改善ICU护士相关知识缺乏现状;提高医护的重视程度,给予护士合理授权;选用简易筛查工具,简化日常评估过程;制订系统评估流程,提高护理质量。展开更多
基金This research was supported by the National Natural Sci—ence Foundation of China(Grant No.50474015)
文摘In Haigh Westergaard stress space linear combination of twin shear stress and Tresca yield functions is called the mean yield (MY) criterion. The mathematical relationship of the criterion and its plastic work rate done per unit volume were derived. A generalized worked example of slab forging was analyzed by the criterion and its corresponding plastic work rate done per unit volume. Then, the precision of the solution was compared with those by Mises and Twin shear stress yield criterions, respectively. It turned out that the calculated results by MY criterion were in good agreement with those by Mises criterion.
文摘This paper aims to present a case study that consists in the analysis of work effort per unit of software systems Development and Enhancement Projects (D&EP) depending on technological factors. That analysis was commissioned by one of the largest public institutions in Poland. This is the COSMIC (Common Software Measurement International Consortium) function points method that is chosen by this institution as a point of reference for size of software systems developed/enhanced for supporting its functions and therefore this method is the base for the analysis of D&EP work effort per unit with regard to technological factors.
文摘目的挖掘重症监护病房(intensive care unit,ICU)护士护理活动减少型谵妄患者工作中存在的问题,为制订ICU活动减少型谵妄患者的护理流程提供依据。方法采用描述性质性研究方法,对7家三级甲等医院的11名ICU护士进行半结构式深入访谈,并使用Colaizzi 7步分析法进行数据的收集及整理,分析提炼出主题。结果分析得出ICU护士护理活动减少型谵妄患者工作体验的5个主题,分别为:ICU护士活动减少型谵妄知识不足;培训存在较多问题;医护重视程度不够;早期识别困难;管理现状不佳。结论护理管理者应在未来优化培训内容,改善ICU护士相关知识缺乏现状;提高医护的重视程度,给予护士合理授权;选用简易筛查工具,简化日常评估过程;制订系统评估流程,提高护理质量。