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Influencing Factors and Improvement Strategy to the Quality of Nursing Work Life: A Review 被引量:1
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作者 Hong Hu Hong Zhou +3 位作者 Fangju Mao Jing Geng Liu Zhang Xi Zhang 《Yangtze Medicine》 2019年第4期253-260,共8页
This review introduces the definition, influencing factors and improvement strategy to the quality of nursing work life, which can provide references for nursing managers to understand the factors affecting the qualit... This review introduces the definition, influencing factors and improvement strategy to the quality of nursing work life, which can provide references for nursing managers to understand the factors affecting the quality of nursing work life and choose effective measures to improve the quality of nursing work life. 展开更多
关键词 Nurses QUALITY of work LIFE QUALITY of NURSING work LIFE Influencing factorS Improvement Strategy
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Current Status and Influencing Factors of the Quality of Work Life of Nurses in Intensive Care Unit 被引量:3
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作者 Hong Hu Hong Zhou +1 位作者 Jing Geng Liu Zhang 《Yangtze Medicine》 2020年第3期183-192,共10页
<strong>Objective:</strong> To investigate the current status and influencing factors of the quality of work life of nurses in Intensive Care Unit (ICU). <strong>Methods:</strong> A total of 24... <strong>Objective:</strong> To investigate the current status and influencing factors of the quality of work life of nurses in Intensive Care Unit (ICU). <strong>Methods:</strong> A total of 243 ICU nurses from 6 general hospitals in Jingzhou were selected by convenient sampling method. Questionnaires were conducted with the general information questionnaire, Connor-Davidson Resilience Scale (CD-RISC) and Work-Related Quality of Life Scale-2 (WRQoL-2). <strong>Results:</strong> The total average score of the quality of work life of ICU nurses was (3.35 ± 0.44), which was at a medium level. Department, professional title, frequency of night shift, experience of workplace violence and psychological resilience were the influencing factors of the quality of work life of nurses in ICU, accounting for 39.4% of the variance. <strong>Conclusion:</strong> The quality of work life of ICU nurses needs to be improved. Nursing managers should pay attention to the work environment of ICU nurses, rationally allocate manpower, and improve the status of psychological resilience of nurses, so as to improve their quality of work life. 展开更多
关键词 ICU NURSE Quality of work Life Psychological Resilience Influencing factors
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What Is the Role of Work-Related Factors in Self-Reported Health Inequalities among Employed Individuals? A Longitudinal Study in Luxembourg
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作者 Anastase Tchicaya Nathalie Lorentz Kristell Leduc 《Health》 2018年第9期1141-1158,共18页
Objectives: We measured health inequalities among employed Luxembourg residents over time and the socio-economic and work-related determinants. Design and Setting: Longitudinal data were obtained from the Socio-econom... Objectives: We measured health inequalities among employed Luxembourg residents over time and the socio-economic and work-related determinants. Design and Setting: Longitudinal data were obtained from the Socio-economic Liewen zu L&#235;tzebuerg/European Union Survey on Income and Living Conditions, which has been conducted each year since 2003 in Luxembourg. Participants: Participants comprised 727 Luxembourg residents (58% men), aged between 21 and 55 years in 2003, who were employed between 2003 and 2012. Primary and Secondary Outcomes Measured: The variable of interest was self-reported health. We used transition indicators on work-related factors to consider changes that individuals may have experienced in their job over this period. Results: People who moved from a part-time to a full-time contract (odds ratio (OR): 5.52, confidence interval (CI): 1.55 - 19.73), and those who moved from the 3rd or 4th quartile of earnings to the 1st or 2nd quartile (OR: 2.48, CI: 1.02 - 6.05) between 2003 and 2012, had a higher risk of being in poor health in 2012. The risk of deterioration in self-reported health in 2012 among people who were healthy in 2003 was associated with the type of contract, economic activity, and occupation. Conclusion: Health inequalities occur among employed people in Luxembourg. Their importance varies according to work-related characteristics and economic activity. Our findings showed that declined health status was associated with contract type, profession, and economic activity. This suggests that measures should be taken to maintain good health for people working in these specific occupations or economic sectors (e.g. preventive action, reduction of risk exposure, change of occupation in the same company, and so on). 展开更多
关键词 Employment HEALTH Inequalities working Conditions EU-SILC work-RELATED factors SELF-REPORTED HEALTH
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The Impact of Organizational and Extra - organizational Factors on Work Stress
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作者 Yang Xin Roselina Ahmad Saufi 《学术界》 CSSCI 北大核心 2017年第5期315-322,共8页
There are various factors that contribute to work stress.These stem from both organisational and extra-organisational contexts.The aim of this paper is to investigate the impact of both organisational and extra-organi... There are various factors that contribute to work stress.These stem from both organisational and extra-organisational contexts.The aim of this paper is to investigate the impact of both organisational and extra-organisational factors on work stress a—mong married female teachers.The study found that the three organisational factors i.e.management and administration,pupil recalcitrance and time demands were significantly correlated with work stress.As for the extra-organisational factors,only personal problems variable was found significantly correlated with work stress.A number of studies of teacher stress have been commissioned over the past decade by the major teaching unions. 展开更多
关键词 土木工程应力 组织 额外组织 传递因数
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Prevalence of Occupational Stress and Related Risk Factors among Nurses Working in ASEER Region
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作者 Maha Mohammed Ahmad Aserri Fatma Mostafa Baddar Salha Mohammed Ahmad Aserri 《Health》 2021年第2期110-122,共13页
Background: Over the last century, stress as an interdisciplinary concept has become an area of great interest and has been researched extensively. Although the earliest studies on stress were mostly physiological, ps... Background: Over the last century, stress as an interdisciplinary concept has become an area of great interest and has been researched extensively. Although the earliest studies on stress were mostly physiological, psychological models of stress have been developed and established a link between stressors and illness in his model of general adaptation syndrome. Objective: To investigate prevalence and factors associated with occupational stress among nurses working Asser region Hospital. The study included nurses at different age groups working at different departments with assessment of any sources of stress. Methodology: A descriptive cross-sectional study was conducted targeting nurses in the main hospitals in the Asser region, Southern Saudi Arabia. A total of the study samples of 217 nurses were required to estimate the expected average stress rate among nurses. A self-administered pre-structured questionnaire used for data collection. Results: Nurses’ ages ranged 21 to 55 years old with mean age of 30.9 ± 11.7 years old. Majority of the nurses were females 175 (80.6%). The highest mean score (more stress) was reported by nurses in relation to the following stress factors;working very hard (4.3 ± 0.9), followed by being under pressure to work long hours (4.2 ± 0.9), the opportunity given to do something is not real and enough (4.2 ± 1.0). The findings showed a significant relationship between nurses’ stress level, their personal and work-related characteristics (P = 0.001). Recommendations: Interventional programs to detect and alleviate sources and effects of occupational stress should be developed including more training regarding coping strategies, nurses’ support, and better work condition. 展开更多
关键词 Stress Nurses workLOAD Determinants factors Associated Psychological Effect work Environment
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Encoding of rat working memory by power of multi-channel local field potentials via sparse non-negative matrix factorization 被引量:1
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作者 Xu Liu Tiao-Tiao Liu +3 位作者 Wen-Wen Bai Hu Yi Shuang-Yan Li Xin Tian 《Neuroscience Bulletin》 SCIE CAS CSCD 2013年第3期279-286,共8页
Working memory plays an important role in human cognition. This study investigated how working memory was encoded by the power of multichannel local field potentials (LFPs) based on sparse non negative matrix factor... Working memory plays an important role in human cognition. This study investigated how working memory was encoded by the power of multichannel local field potentials (LFPs) based on sparse non negative matrix factorization (SNMF). SNMF was used to extract features from LFPs recorded from the prefrontal cortex of four SpragueDawley rats during a memory task in a Y maze, with 10 trials for each rat. Then the powerincreased LFP components were selected as working memoryrelated features and the other components were removed. After that, the inverse operation of SNMF was used to study the encoding of working memory in the time frequency domain. We demonstrated that theta and gamma power increased significantly during the working memory task. The results suggested that postsynaptic activity was simulated well by the sparse activity model. The theta and gamma bands were meaningful for encoding working memory. 展开更多
关键词 sparse non-negative matrix factorization multi-channel local field potentials working memory prefrontal cortex
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Suggested Work Modifications for Patients with Environmental and Occupational Risk Factors in Hidradenitis Suppurativa
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作者 Kelly Frasier Mary Grace Hash +3 位作者 Alyssa Forsyth Christina Randolph Guang Orestes Raquel Batista 《Occupational Diseases and Environmental Medicine》 2024年第4期305-317,共13页
Hidradenitis suppurativa (HS) is a chronic, inflammatory skin condition characterized by painful nodules, abscesses, and scarring, primarily affecting areas rich in apocrine glands. Environmental and occupational risk... Hidradenitis suppurativa (HS) is a chronic, inflammatory skin condition characterized by painful nodules, abscesses, and scarring, primarily affecting areas rich in apocrine glands. Environmental and occupational risk factors, including prolonged exposure to heat, friction, and certain chemicals, have been identified as exacerbating conditions for HS. Yet, there remains a lack of tailored recommendations for modifying work environments to alleviate these triggers. This review presents novel suggestions for work modifications to reduce HS flare-ups, such as implementing breathable, friction-reducing workwear, ergonomic adjustments to minimize pressure on affected areas, and introducing low-irritant hygiene protocols in workplaces with chemical exposure. These recommendations are grounded in emerging evidence linking specific occupational exposures to the exacerbation of HS symptoms. The novelty of this approach lies in its proactive stance, shifting from reactive management of HS symptoms to preventative environmental modifications. Future studies should explore the long-term efficacy of these modifications and investigate the potential for personalized work environment adjustments based on individual patient profiles. Targeted workplace interventions may significantly improve the quality of life for HS patients, highlighting the need for multidisciplinary collaboration between dermatologists, occupational health specialists, and employers. 展开更多
关键词 Hidradenitis Suppurativa Occupational Risk factors work Environment Modifications Heat and Friction Exposure Ergonomic Adjustments Chemical Irritants Preventative Strategies workwear for HS Environmental Triggers Dermatology and Occupational Health Collaboration
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Role of hippocampal dentate gyrus neurons in the protective effects of heat shock factor 1 on working memory
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作者 Min Peng Xiongzhao Zhu +2 位作者 Ming Cheng Xiangyi Chen Shuqiao Yao 《Neural Regeneration Research》 SCIE CAS CSCD 2011年第9期686-691,共6页
Increasing evidence suggests that heat shock factor 1 exerts endogenous protective effects on working memory under conditions of chronic psychological stress. However, the precise underlying mechanisms remain poorly u... Increasing evidence suggests that heat shock factor 1 exerts endogenous protective effects on working memory under conditions of chronic psychological stress. However, the precise underlying mechanisms remain poorly understood. This study examined the protective factors affecting working memory in heat shock transcription factor 1 gene knockout mice. The results indicated that the number of correct T maze alternations decreased following mild chronic psychological stress in knockout mice. This change was accompanied by a decrease in neurogenesis and an increase in neuronal apoptosis in the hippocampal dentate gyrus. The number of correct T maze alternations was positively correlated with neurogenesis in hippocampal dentate gyrus, and negatively correlated with neuronal apoptosis. In wild type mice, no significant difference was detected in the number of correct T maze alternations or neuronal apoptosis in hippocampal dentate gyrus. These results indicate that the heat shock factor 1 gene has an endogenous protective role in working memory during mild chronic psychological stress associated with dentate gyrus neuronal apoptosis Moreover, dentate gyrus neurogenesis appears to participate in the protective mechanism. 展开更多
关键词 working memory T maze heat shock factor 1 chronic psychological stress dentate gyrus NEURONS APOPTOSIS NEUROGENESIS
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Bank Employees and Work-Related Diseases: Predisposing Factors Are Noteworthy
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作者 Taskin Ozdes Emel Kurtoglu Ozdes +1 位作者 Oya Guven Merve Demireller 《Open Journal of Preventive Medicine》 2024年第11期197-210,共14页
Work-related diseases can have health consequences including stress- and mental health-related disorders, musculoskeletal disorders, and cancer and skin complaints due to exposure to biological agents. We aimed to inv... Work-related diseases can have health consequences including stress- and mental health-related disorders, musculoskeletal disorders, and cancer and skin complaints due to exposure to biological agents. We aimed to investigate the prevalence of work-related diseases among bank employees and the independent risk factors for these diseases and to highlight measures that can be taken to prevent the occurrence of such diseases, to improve holistic health, and to raise awareness about work-related disease. Data were collected during face-to-face interviews (n = 796) in the recruitment phase of an international public bank in Istanbul, Türkiye or during periodic examinations in the bank between 2017 and 2019. Data, including socio-demographic characteristics, medical anamneses, physical examination results, laboratory findings, occupational accidents, and occupational disease frequency data, were retrospectively examined, and the results were statistically evaluated. Data were analyzed using the SPSS Statistics 17.0 (IBM Corporation, Armonk, NY, USA) package program. Results were considered statistically significant at p < 0.05. Age, female gender, dust exposure, vibration in the workplace were found to be significantly associated with musculoskeletal disorders, while age and work-related noise was found to be related to digestive system problems and dust exposure had significant relation with psychiatric disorders. Work-related diseases among bank employees are a priority that should be addressed by all relevant authorities to enable people to lead healthy lives in physical, mental, spiritual, and social terms. 展开更多
关键词 work-Related Disease Bank Employee Predisposing factor Occupational Health PREVENTION
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医院医务人员工作相关肌肉骨骼疾患调查现状与影响因素分析
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作者 周娟 刘志礼 +1 位作者 曲鹏 王铜浩 《中华劳动卫生职业病杂志》 北大核心 2026年第1期43-48,共6页
目的探究医院医务人员工作相关肌肉骨骼疾患(work-related musculoskeletal disorders,WMSDs)的流行现状及其影响因素,旨在为医院职业健康管理政策的制定与完善提供科学支撑。方法于2025年1至2月,采用方便抽样方法选取天津市某医院的102... 目的探究医院医务人员工作相关肌肉骨骼疾患(work-related musculoskeletal disorders,WMSDs)的流行现状及其影响因素,旨在为医院职业健康管理政策的制定与完善提供科学支撑。方法于2025年1至2月,采用方便抽样方法选取天津市某医院的1029名一线医务人员作为研究对象。采用《肌肉骨骼疾患调查表》对过去1年内身体各部位发生WMSDs进行横断面调查,以logistic回归分析颈部、肩部、背部和腰部发生WMSDs的潜在影响因素。结果医务人员WMSDs的总发生率为59.48%(612/1029),各部位WMSDs发生率排名前4的依次为腰部42.95%(442/1029)、颈部41.59%(428/1029)、肩部36.64%(377/1029)和背部28.47%(293/1029)。多因素logistic回归分析显示,男性、长时间保持颈部前倾姿势是医务人员发生颈部WMSDs的影响因素(OR=0.38、3.15,P<0.001);男性、从事夜班工作、休息时间充足以及姿势不当导致的用力困难是肩部WMSDs发生的影响因素(OR=0.57、1.47、0.61、1.60,P<0.05);从事夜班工作、休息时间充足以及姿势不当导致的用力困难是背部WMSDs发生的影响因素(OR=1.52、0.66、1.74,P<0.05);男性、工龄≥31年是腰部WMSDs发生的影响因素(OR=0.41、2.69,P<0.001)。结论医院医务人员WMSDs的发生率较高,与工作负荷、工作姿势及个体特征等因素明显相关,需采取针对性干预措施以改善医务人员职业健康状况。 展开更多
关键词 医务人员 工作相关肌肉骨骼疾患 调查现状 影响因素 职业健康
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癌症病人工作生活质量现状及影响因素的研究进展
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作者 俞韩丽 耿俊杰 谭丽萍 《全科护理》 2026年第2期234-240,共7页
对国内外癌症病人工作生活质量的概念、评估工具、研究现状、影响因素及其干预策略进行综述,以期为临床医护人员制订科学的职业康复干预方案提供依据,从而提升癌症病人的工作生活质量水平。
关键词 癌症病人 工作生活质量 影响因素 干预策略 综述
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新时期农业长期定位观测工作初探——以中国农业科学院长期因子观测工作为例
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作者 杨帅 王广帅 +3 位作者 丁大伟 翟伟广 解沛 刘涛 《农业科技管理》 2026年第1期52-56,共5页
农业长期定位观测工作作为农业科技创新链条的基础性工作,在揭示农业农村要素的长周期、大尺度演变规律方面具有不可替代的作用。但长期以来,经费缺乏、学科壁垒、标准不一、新技术应用滞后等问题,制约了其在支撑国家重大需求、重要科... 农业长期定位观测工作作为农业科技创新链条的基础性工作,在揭示农业农村要素的长周期、大尺度演变规律方面具有不可替代的作用。但长期以来,经费缺乏、学科壁垒、标准不一、新技术应用滞后等问题,制约了其在支撑国家重大需求、重要科技创新等方面的效能。为此,中国农业科学院探索开展了长期因子观测工作,建立了以“观测站—数据汇交总枢纽—数据应用高地”为框架的新型观测体系,并通过开拓多源经费渠道、部署“1+N”综合观测试验体系、统一观测标准规范、探索新一代数智化观测技术应用等举措,为新时期农业长期定位观测工作开拓了发展路径。 展开更多
关键词 长期因子观测工作 “1+N”综合观测试验体系 数智化观测技术 中国农业科学院
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孤岛工作面强矿压多源风险识别与防控技术研究
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作者 董帅 吴少伟 +5 位作者 杨原野 赵小东 刘建林 黄剑斌 张俊文 董续凯 《中国安全生产科学技术》 北大核心 2026年第1期72-78,共7页
为了防控厚煤层孤岛工作面强矿压显现导致围岩稳定性差的不利影响,采取理论分析、现场监测等方法研究坚硬厚顶板、密集断层、宽煤柱等因素对孤岛工作面强矿压的影响,构建孤岛工作面强矿压多源风险识别与防控技术体系。研究结果表明:孤... 为了防控厚煤层孤岛工作面强矿压显现导致围岩稳定性差的不利影响,采取理论分析、现场监测等方法研究坚硬厚顶板、密集断层、宽煤柱等因素对孤岛工作面强矿压的影响,构建孤岛工作面强矿压多源风险识别与防控技术体系。研究结果表明:孤岛工作面矿压活动具有多因素叠加与时空集中特征,震力耦合监测反映了矿压演化过程,分源定向协同防控技术可有效降低强矿压发生的可能性,开采过程中微震能量整体维持在10^(2)J量级,应力稳定在4~7 MPa,巷道围岩维持稳定。研究结果可为复杂条件工作面强矿压机理揭示、风险识别方法构建及分源定向防控技术优化提供参考。 展开更多
关键词 孤岛工作面 强矿压 多因素耦合 震力监测 分源定向防控
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医护人员个人环境匹配创造力的潜在剖面分析及其影响因素
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作者 倪玲 李芳 +5 位作者 何欢 李盈 任丽 李丽君 李晖 李想 《护理研究》 北大核心 2026年第5期763-769,共7页
目的:探讨医护人员个人环境匹配创造力的潜在剖面,并分析其不同剖面的特征差异及影响因素。方法:选取2024年11月—2025年1月湖南省4所三级甲等综合医院的492名医护人员作为调查对象,使用一般资料调查表、个人环境匹配创造力量表、创意... 目的:探讨医护人员个人环境匹配创造力的潜在剖面,并分析其不同剖面的特征差异及影响因素。方法:选取2024年11月—2025年1月湖南省4所三级甲等综合医院的492名医护人员作为调查对象,使用一般资料调查表、个人环境匹配创造力量表、创意自我效能量表、创新行为量表、领导授权赋能行为量表、工作投入量表进行调查。运用潜在剖面分析探讨医护人员个人环境匹配创造力的潜在剖面,并采用Logistic回归分析探讨不同剖面的影响因素。结果:潜在剖面分析结果显示,医护人员个人环境匹配创造力可分为低阶适配型(32%)、中阶动态型(58%)、高阶协同型(10%)3个剖面。Logistic回归分析结果显示,学历、平均月收入是否发表论文或专利、创意自我效能、创新行为、领导授权赋能行为、工作投入是医护人员个人环境匹配创造力不同剖面的影响因素(P<0.05)。结论:医护人员个人环境匹配创造力处于中等水平,且存在明显群体异质性;建议医疗机构根据不同剖面医护人员个人环境匹配创造力特征实施针对性的激励政策,逐步构建激发医护人员创造力的生态系统。 展开更多
关键词 医护人员 环境匹配 创造力 影响因素 创新行为 自我效能 工作投入 潜在剖面分析
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护生实习后期工作投入现状及其影响因素
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作者 刘丽杰 李进 +2 位作者 覃利英 邹玉珺 伍敏玲 《循证护理》 2026年第2期391-396,共6页
目的:调查护生实习后期工作投入现状及其影响因素。方法:采用便利抽样法选取2025年1月—2月广州市某三级甲等综合医院的180名实习护生为研究对象,采用一般资料调查表、工作投入量表、工作倦怠量表、一般自我效能感量表、任务负荷指数、... 目的:调查护生实习后期工作投入现状及其影响因素。方法:采用便利抽样法选取2025年1月—2月广州市某三级甲等综合医院的180名实习护生为研究对象,采用一般资料调查表、工作投入量表、工作倦怠量表、一般自我效能感量表、任务负荷指数、护生临床学习环境量表进行横断面调查。结果:回收有效问卷167份,有效回收率为92.78%(167/180)。实习护生后期工作投入量表总分为(35.49±8.62)分。多因素分析结果显示,学历、毕业后从事护理工作意愿、工作倦怠、一般自我效能感、任务负荷、临床学习环境是护生实习后期工作投入的影响因素(P<0.05)。结论:实习护生实习后期工作投入水平处于中等水平,影响因素较多,建议护理教育者优化临床教学策略,促进实习护生在实习后期维持良好的工作投入水平。 展开更多
关键词 实习护生 后期 工作投入 工作倦怠 一般自我效能感 任务负荷 临床学习环境 影响因素 护理
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How Work Organization Affects the Prevalence of WMSDs: A Case-control Study 被引量:12
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作者 LIU Lu CHEN Song Gen +6 位作者 TANG Shi Chuan WANG Sheng HE Li Hua GUO Ze Hua LI Jing Yun YU Shan Fa WANG Zhong Xu 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2015年第9期627-633,共7页
Objective In this study, we aimed at exploring the association between work-related musculoskeletal disorders(WMSDs) and work organization based on a case-control study. Methods A total of 1938 workers who claimed t... Objective In this study, we aimed at exploring the association between work-related musculoskeletal disorders(WMSDs) and work organization based on a case-control study. Methods A total of 1938 workers who claimed to suffer from WMSDs were selected from Beijing, Henan, Hubei, and the Guangdong province. The control group consisted of 2009 workers employed in similar industries without severe disease or musculoskeletal discomforts. We used a modified version of the questionnaire developed by the NMQ and the DMQ to investigate individual and work-related factors. Results A total of 13 variables(P〈0.1) were selected by the chi-square test and finally, 7 variables entered into the equation, with 6 variables reaching statistical significance(P〈0.05). The odds ratios(OR) of 'work changing with season' and 'sufficient rest time' did not reach 1(0.749 and 0.441, respectively). In addition, 'sufficient rest time' seemed to be the stronger protective factor according to its higher standardized coefficient. And 'repetitive work every minute', 'constantly repetitive work'(every day), 'shortage of site personnel', and 'often switching shifts with others' seemed to be the risk factors. Conclusion Work organization may have comprehensive effects on the occurrence of WMSDs. This pattern of associations suggests that further investigation into the mechanism of how work organization affects the prevalence of WMSDs is required. 展开更多
关键词 WMSDs work organization Case-control study Prevalence Risk factors
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基于要因分析法与AIGC技术的核工业安全生产标准化评审效率提升研究
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作者 唐志尧 王璟诚 +3 位作者 祝楷 连哲莉 黄一帆 张心月 《中国标准化》 2026年第3期217-226,共10页
针对某核工业集团安全生产标准化评审任务激增与评审机构传统人工评审模式效率不足的矛盾,本研究旨在探索并验证提升评审效率的有效路径。通过评审流程的耗时统计与评审机构间的效率对标,明确评审效率瓶颈集中在专家分工、问题汇总及报... 针对某核工业集团安全生产标准化评审任务激增与评审机构传统人工评审模式效率不足的矛盾,本研究旨在探索并验证提升评审效率的有效路径。通过评审流程的耗时统计与评审机构间的效率对标,明确评审效率瓶颈集中在专家分工、问题汇总及报告编制3个环节。运用关联图分析,识别出“专家分工缺少辅助工具、评审数据统计缺少自动化工具”等制约评审效率的五大关键要因。结合人工智能生成内容(AIGC)技术,构建并应用了动态专家画像、问题处理闭环及全流程报告编制支持体系。经实际应用验证,该改进方案有效降低了评审机构单次评审人工投入,提高了评审效率,成功推动评审模式从“人工主导”向“人机协同”转型,为优化核工业安全生产标准化评审流程提供了理论依据与技术参考。 展开更多
关键词 要因分析法 AIGC技术 安全生产标准化 评审效率
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基于分层修正因子的配网线路复杂环境电场建模研究
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作者 夏俊杰 胡南南 +5 位作者 赵梓钧 朱珠 温立师 符靖凡 张会歌 杨家全 《电力科学与工程》 2026年第1期1-11,共11页
在配网线路带电作业过程中,电场分布的精确预测对安全规划至关重要,在现有方法中,经验法和解析法应用场景有限、仿真法计算速度慢、机器学习法难以物理解释。基于此,结合物理经验公式与机器学习方法,提出了一种分层混合电场建模框架,并... 在配网线路带电作业过程中,电场分布的精确预测对安全规划至关重要,在现有方法中,经验法和解析法应用场景有限、仿真法计算速度慢、机器学习法难以物理解释。基于此,结合物理经验公式与机器学习方法,提出了一种分层混合电场建模框架,并对配网线路边导线一侧区域的电场特性进行了建模与验证。首先基于电磁理论与数值分析构建了三相长直导线电场E_(0)的基准经验公式;然后分层引入环境修正因子k_(m),并通过有限元孪生仿真数据对其进行量化;最后使用梯度提升树模型学习k_(m)的非线性关系,将E_(0)与k_(m)相乘得到预测电场。结果表明,模型在仿真数据上的各修正因子的R^(2)均高于0.99,综合电场预测的均方根误差为228 V/m,整体R^(2)达到0.989;模型在现场实测验证中的平均相对误差为14.5%,剔除单个离群点后降至12.8%。研究表明,该模型能在具备物理解释的同时实现高精度、高效率的预测,且具备可拓展性。 展开更多
关键词 配网线路 带电作业 电场预测 分层修正因子 梯度提升树
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Calculation and Analysis of Valence Electron Structure of Mo_2C and V_4C_3 in Hot Working Die Steel 被引量:3
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作者 LIU Yan LIU Zhi-lin ZHANG Cheng-weit 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2006年第1期50-56,共7页
Taking the hot working die steel (HWDS) 4Cr3Mo2NbVNi as an example, the phase electron structures (PES) and the biphase interface electron structures (BIES) of Mo2C and V4 C3 , which are two kinds of important c... Taking the hot working die steel (HWDS) 4Cr3Mo2NbVNi as an example, the phase electron structures (PES) and the biphase interface electron structures (BIES) of Mo2C and V4 C3 , which are two kinds of important carbides precipitated during tempering in steel were calculated, on the basis of the empirical electron theory of solids and molecules and the improved TFD theory. The influence of Mo2 C and V4 C3 on the mechanical properties of HWDS has been analyzed at electron structure level, and the fundamental reason that the characteristic of the PES and the BIES of carbides decides the behavior of them has been revealed. 展开更多
关键词 phase structure factor interface conjunction factor hot working die steel CARBIDE
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A Fast Multi-tasking Solution: NMF-Theoretic Co-clustering for Gear Fault Diagnosis under Variable Working Conditions 被引量:7
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作者 Fei Shen Chao Chen +1 位作者 Jiawen Xu Ruqiang Yan 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2020年第1期182-196,共15页
Most gear fault diagnosis(GFD)approaches su er from ine ciency when facing with multiple varying working conditions at the same time.In this paper,a non-negative matrix factorization(NMF)-theoretic co-clustering strat... Most gear fault diagnosis(GFD)approaches su er from ine ciency when facing with multiple varying working conditions at the same time.In this paper,a non-negative matrix factorization(NMF)-theoretic co-clustering strategy is proposed specially to classify more than one task at the same time using the high dimension matrix,aiming to o er a fast multi-tasking solution.The short-time Fourier transform(STFT)is first used to obtain the time-frequency features from the gear vibration signal.Then,the optimal clustering numbers are estimated using the Bayesian information criterion(BIC)theory,which possesses the simultaneous assessment capability,compared with traditional validity indexes.Subsequently,the classical/modified NMF-based co-clustering methods are carried out to obtain the classification results in both row and column tasks.Finally,the parameters involved in BIC and NMF algorithms are determined using the gradient ascent(GA)strategy in order to achieve reliable diagnostic results.The Spectra Quest’s Drivetrain Dynamics Simulator gear data sets were analyzed to verify the e ectiveness of the proposed approach. 展开更多
关键词 GEAR fault diagnosis Non-negative matrix factorIZATION CO-CLUSTERING VARYING working conditions
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