Stress,coping and safety compliance in a multinational gold mining company

The primary objective of this study was to investigate the relationship of work stress, consisting of role stressors and job insecurity, with safety compliance at work. A secondary objective was to test for the possible moderating effect of individual employees’ coping behaviour between experienced work stress and job insecurity, and their safety compliance. A cross-sectional survey design was used (n?=?771). An electronic survey, with a biographical questionnaire and scales on role conflict, role ambiguity, role overload, job insecurity, coping and safety compliance at work, was administered. The results indicated that specific aspects of work stress, notably role conflict, role ambiguity and quantitative job insecurity, and of coping, namely an avoidance style and changing the situation, were important in understanding safety compliance. A moderating effect of avoidance coping was also found.     

基于数据场和云模型的洪水灾害风险等级评估

根据灾害风险系统的定义以及洪水灾害的特点,用灾情损失与地形危险性的综合作用描述洪水灾害风险。针对研究单元风险的内在联系和等级概念的模糊性、随机性,提出基于数据场和云模型的洪水灾害风险等级评估方法,以期为洪水灾害风险管理提供科学依据。以苏州市和上海市(崇明县除外)为例,首先用数据场对灾情数据进行扩散;再用云模型对地形进行等级划分;最后对两者进行耦合得到该地区的洪水灾害风险等级划分。结果表明:苏州市中心偏北区域和上海市中心区域综合风险等级最高,并向四周呈递减趋势;总体上中部风险等级最高,北部次之,南部最低。     

A Systems Based Framework to Examine The Multi-contextural Application of the Sustainability Concept

A conceptual framework is generated through systems principles to explain sustainability’s wide diversity of interpretation and contextual application. Sustainability is reduced to a literal interpretation as the ability to sustain, and then expressed in simple systems as the ability of one system to sustain another system over time. This reinforces the importance of time in the sustainability debate, and suggests the concept can be legitimately applied to timeframes that have absolute limits. The framework is expanded to complex systems as the changing ability of one or many systems to sustain the changing requirements of one or many systems, over time. This accommodates multiple relations and system dynamics, and hints at the extraordinary complexity encompassed by the sustainability concept. Practical implications relate to the evolving meaning of sustainability, the need for continual change to remain sustainable, and that the sustainability concept can be validly applied to virtually any context or situation that exhibits a dimension of continuity. Derived criteria useful for clarifying contextual applications of sustainability include stating the how, what, why, who and for how long of sustainability, along with indicating the most appropriate hierarchical tier at which the concept is being applied.     

煤矿酸性水治理方案的评价

通过煤矿酸性水处理方案的评价提出最终选用的工艺。首先提出酸性水的问题及要求达到的目标，提出三个供选方案，然后，分别对这三个方案进行系统的结构分析，确定评价因子及模糊评价模型。通过分析计算，得出综合评价值，最后以该值作为选用方案的依据，这样避免了方案选择的盲目性。