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Suggestions on Strengthening the Process-Oriented Writing Guidance in High School Chinese Argumentative Writing Teaching
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作者 Tao Li Gaotong Feng 《Journal of Contemporary Educational Research》 2025年第10期112-119,共8页
Process-oriented writing is the main way for teachers to precisely control the problems and weak links presented by students in each writing stage.Therefore,it is possible to design teaching activities that are in lin... Process-oriented writing is the main way for teachers to precisely control the problems and weak links presented by students in each writing stage.Therefore,it is possible to design teaching activities that are in line with their cognitive levels based on students’needs;promote writing through debate,attach importance to the high integration of reading,speaking,and writing;and strengthen the subjectivity of students in writing by taking interest as the lead and life as the source. 展开更多
关键词 Argumentative writing process-oriented writing guidance Students’needs Integration of reading and writing Writing subjectivity
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Inclusive leadership and authenticity at work among South African professionals of colour:The role of psychological safety and gender
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作者 Waseemah Patel Laura Lorente Felipe Bravo-Duarte 《Journal of Psychology in Africa》 2026年第1期89-95,共7页
This study examined the relationship between inclusive leadership and authenticity at work in racial minority groups of South Africa,taking into account the mediating role of psychological safety and the moderator rol... This study examined the relationship between inclusive leadership and authenticity at work in racial minority groups of South Africa,taking into account the mediating role of psychological safety and the moderator role of gender,in that relationship.The sample was composed of 94 employees predominantly working in the professional services sector from South Africa(41.5%females;mean age=37.1),who self-identified as racial minority groups(coloured/black/Indian).Results indicate that inclusive leadership has no direct effect on authenticity at work;however,psychological safety fully mediates this relationship.Regarding the moderation effect of gender,results showed that males are more likely to diminish their self-alienation(a specific component of authenticity at work)when levels of psychological safety are higher.These results are consistent with Social Identity Theory,which posits that individuals derive part of their self-concept from their membership in social groups.In contexts where inclusive leadership fosters psychological safety,individuals(particularly men in traditionally male-dominated work environments)may feel a stronger sense of belonging and group identity,which in turn enhances their willingness to express their authentic selves and reduces self-alienation.Practical implications for companies include the need to improve leadership styles to foster more of an inclusive and psychologically safe culture,where minority groups can be authentic and flourish. 展开更多
关键词 Inclusive leadership psychological safety authenticity at work minority groups GENDER
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The Relationship among Chinese Teachers’Organizational Support,Career Adaptability and Job Satisfaction:The Mediating Effect of DecentWork
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作者 Huaruo Chen Gefan Wang +4 位作者 Hancai Qiu Hui Ma Zhentao Peng Ruihan Liu Feng Xu 《International Journal of Mental Health Promotion》 2026年第1期72-91,共20页
Background:As an important indicator of subjective well-being(SWB),decent work is a key guarantee for the sustainable development of teachers and their psychological health and work quality.Faced with the rapid develo... Background:As an important indicator of subjective well-being(SWB),decent work is a key guarantee for the sustainable development of teachers and their psychological health and work quality.Faced with the rapid development of artificial intelligence and the global labor market,vocational college teachers are facing challenges such as workload pressure and limited career development,which may harm their well-being.This study aims to localize the measurement method of decent work in Chinese vocational education based on the theory of the Psychology of Working Theory,and explore the relationship mechanism between organizational support,career adaptability,decent work,and job satisfaction among vocational college teachers.Methods:A cross-sectional survey was conducted with 422 HVCU teachers in China(202 male,220 female)using the localized Perceived Organizational Support Scale,Career Adaptability Scale,Decent Work Scale,and Job Satisfaction Scale.Results:The overall level of HVCU teachers’decent work was above the median(Mean=4.09,SD=0.69),laying a foundation for their SWB.Decent work significantly and positively predicted job satisfaction(β=0.620,p<0.001).Organizational support(r=0.58,p<0.001)and career adaptability(r=0.82,p<0.001)can positively affect decent work,and further improve job satisfaction(collective R2 rising from 38.3%to 41.1%).Bootstrap analysis confirmed these mediating effects were robust.Conclusions:This study confirms that the combined effects of organizational support and career adaptability can enhance decent work,further improving teachers’job satisfaction and subsequent subjective well-being.Besides,this study provides an empirical basis for improving the well-being of higher vocational teachers and the sustainable development of vocational education,and has practical significance for improving the teacher incentive policy. 展开更多
关键词 Higher vocational teachers organizational support career adaptability decent work job satisfaction subjective well-being
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Optimal Working Fluid Selection and Performance Enhancement of ORC Systems for Diesel Engine Waste Heat Recovery
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作者 Zujun Ding Shuaichao Wu +8 位作者 Chenliang Ji Xinyu Feng Yuanyuan Shi Baolian Liu Wan Chen Qiuchan Bai Hengrui Zhou Hui Huang Jie Ji 《Energy Engineering》 2026年第2期527-547,共21页
In the quest to enhance energy efficiency and reduce environmental impact in the transportation sector,the recovery of waste heat from diesel engines has become a critical area of focus.This study provided an exhausti... In the quest to enhance energy efficiency and reduce environmental impact in the transportation sector,the recovery of waste heat from diesel engines has become a critical area of focus.This study provided an exhaustive thermodynamic analysis optimizing Organic Rankine Cycle(ORC)systems forwaste heat recovery fromdiesel engines.Thestudy assessed the performance of five candidateworking fluids—R11,R123,R113,R245fa,and R141b—under a range of operating conditions,specifically varying overheat temperatures and evaporation pressures.The results indicated that the choice of working fluid substantially influences the system’s exergetic efficiency,net output power,and thermal efficiency.R245fa showed an outstanding net output power of 30.39 kW at high overheat conditions,outperforming R11,which is significant for high-temperature waste heat recovery.At lower temperatures,R11 and R113 demonstrated higher exergetic efficiencies,with R11 reaching a peak exergetic efficiency of 7.4%at an evaporation pressure of 10 bar and an overheat of 10℃.The study also revealed that controlling the overheat and optimizing the evaporation pressure are crucial for enhancing the net output power of the ORC system.Specifically,at an evaporation pressure of 30 bar and an overheat of 0℃,R113 exhibited the lowest exergetic destruction of 544.5 kJ/kg,making it a suitable choice for minimizing irreversible losses.These findings are instrumental for understanding the performance of ORC systems in waste heat recovery applications and offer valuable insights for the design and operation of more efficient and environmentally friendly diesel engine systems. 展开更多
关键词 Organic rankine cycle(ORC) waste heat recovery working fluid selection exergetic efficiency net output power
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A Study on the Effectiveness of Process-oriented Approach in ESL English Writing Teaching in YAU
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作者 明珠 夏梅花 姜梅 《海外英语》 2015年第17期232-236,共5页
This study sets out to conduct the effectiveness of process-oriented approach on the ESL writing teaching for non-Eng-lish majors in Yunnan Agricultural University(YAU),with the aim of enhancing the students' Engl... This study sets out to conduct the effectiveness of process-oriented approach on the ESL writing teaching for non-Eng-lish majors in Yunnan Agricultural University(YAU),with the aim of enhancing the students' English writing proficiency andscores.120 non-English major sophomores and 10 English teachers from YAU are involved in it.With the results of questionnaire,interview and the composition scores of the target students,the findings indicate that the students have a positive attitude towardsprocess-oriented writing approach and it can help them write better and make the writing class more interesting. 展开更多
关键词 EFFECTIVENESS process-oriented APPROACH ESL Englis
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Efficacy of Peer Revision in Process-oriented Writing
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作者 邓雪梅 《海外英语》 2013年第9X期12-17,共6页
Peer revision is a collaborative activity during which student writers can exchange drafts and make suggestions for improvement. It has been widely used at present in process-oriented writing instruction. In this pape... Peer revision is a collaborative activity during which student writers can exchange drafts and make suggestions for improvement. It has been widely used at present in process-oriented writing instruction. In this paper, the researcher carried out an empirical study about the effects and efficacy of peer revision on a group of Chinese Juniors majoring in English. It was found that student writers focused specially on grammar and vocabulary in PE session and organization was the least attended to. PE was quite effective in improving the overall writing quality, as the participants did incorporate most of the revisions suggested by their peers. However, the influences of students'writing proficiencies and of the rhetorical modes of the writing tasks on the effects of PE were proved to be not very significant. 展开更多
关键词 PEER REVISION process-oriented WRITING
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基于InfoWorks ICM水力模型的排水管道负荷分析方法 被引量:1
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作者 张辰 《工程建设与设计》 2025年第2期31-33,共3页
采用InfoWorks ICM水力模型,通过构建量化模型,对排水管道在不同降雨强度条件下的负荷进行分析。结果表明,新建雨水系统能满足5年一遇降雨标准,且在10年一遇降雨标准下,路面积水不超150 mm。
关键词 排水管道 负荷分析 Info works ICM 管道沉积物
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Process-oriented Approach to Motivating Learners:Its Implications and Applications
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作者 刘毅 罗腊梅 《海外英语》 2012年第11X期259-261,280,共4页
Drawn upon Dornyei' s motivational study,this paper aims to explore the implications that process-oriented approach may bring and tries to shed light on some applications in Chinese EFL teaching context.
关键词 process-oriented APPROACH IMPLICATIONS APPLICATION
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Android平台基于WorkManager的持久性工作设计
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作者 李维勇 蒋理 齐德胜 《四川职业技术学院学报》 2025年第2期157-163,共7页
随着移动应用的复杂性增加,确保关键任务即使在应用退出或设备重启后也能完成变得尤为重要.Android WorkManager库提供了一种可靠的解决方案,用于安排和执行后台工作.本文详细介绍了WorkManager的架构、任务调度流程,以及如何设计和实... 随着移动应用的复杂性增加,确保关键任务即使在应用退出或设备重启后也能完成变得尤为重要.Android WorkManager库提供了一种可靠的解决方案,用于安排和执行后台工作.本文详细介绍了WorkManager的架构、任务调度流程,以及如何设计和实现持久性工作策略.通过案例研究和性能评估,展示了WorkManager在处理不同类型工作负载时的优势和局限性. 展开更多
关键词 workManager 持久性工作 后台任务 移动应用
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Process-oriented knowledge-sharing platform for chemical engineering design projects
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作者 Zhang, Lingling Zhang, Yuejin +2 位作者 Li, Jun Zhen, Miao Zheng, Xiuyu 《Journal of Southeast University(English Edition)》 EI CAS 2008年第S1期136-141,共6页
A process-oriented knowledge-sharing platform is studied to improve knowledge sharing and project management of chemical engineering design enterprises. First, problems and characteristics of knowledge sharing in mult... A process-oriented knowledge-sharing platform is studied to improve knowledge sharing and project management of chemical engineering design enterprises. First, problems and characteristics of knowledge sharing in multi-projects of chemical engineering design are analyzed. Then based on theories of project management, process management, and knowledge management, a process-oriented knowledge-sharing platform is proposed. The platform has three characteristics: knowledge is divided into professional knowledge and project management knowledge; knowledge sharing is integrated with the project process, which makes knowledge sharing a necessary part of the project process and ensures the quantity of knowledge shared; the platform provides quantitative measurements of incentive mechanisms for knowledge providers and users which ensures the quality of knowledge shared. This knowledge-sharing platform uses two knowledge management tools, a knowledge map and a knowledge base, to support the platform. 展开更多
关键词 chemical engineering design project knowledge sharing process-oriented PLATFORM
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SolidWorks中轴套类零件曲面上打斜孔的两种方法
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作者 覃群 《机械管理开发》 2025年第4期255-256,259,共3页
论述了SolidWorks环境下,在轴及轴套类零件的圆柱面上造型倾斜位置孔的两种方法:草图驱动、设计库。详细说明了两种方法的造型过程及技巧并给出了应用实例。前者孔定位稍繁琐,但可造型不同类型的孔;后者定位较快捷,但孔的类型较固定,即... 论述了SolidWorks环境下,在轴及轴套类零件的圆柱面上造型倾斜位置孔的两种方法:草图驱动、设计库。详细说明了两种方法的造型过程及技巧并给出了应用实例。前者孔定位稍繁琐,但可造型不同类型的孔;后者定位较快捷,但孔的类型较固定,即为做设计库时造型的孔类型。通过分析认为,两种方法各有优劣,设计者可灵活选用。 展开更多
关键词 SOLIDworkS 轴套 孔造型 设计库
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Nurses’ Experiences of Process-Oriented Supervision—Acquiring New Approaches to Demanding Situations
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作者 Lotta Carlson Linda Berg Margaretha Jenholt Nolbris 《Open Journal of Nursing》 2020年第4期449-461,共13页
Background: Providing nursing care for patients and relatives requires a great effort from a nurse. It is therefore important for the nurse to have the opportunity to reflect on the caring acts included in process-ori... Background: Providing nursing care for patients and relatives requires a great effort from a nurse. It is therefore important for the nurse to have the opportunity to reflect on the caring acts included in process-oriented nursing supervision (PRONS). The overall objective of the nursing supervision is to support the professional development identity, competences, skills and ethics in different situations in nursing care. Aim: To investigate nurses’ experiences of the model of purging, playing and learning (PPL) according to Eriksson theory in a (PRONS) related to strengthen safe care, quality and professional development. Method: A qualitative study with individual interviews and the data was analyzed using qualitative interpretive content analysis. Participants: All eleven registered participated nurses were from southwestern Sweden and worked in different hospital units. Ethical Considerations: The study carried out in accordance with the ethical guidelines laid down in the Helsinki Declaration and according to the recommendations of the regional ethics committee. Findings: Three categories were identified, valuable purging in the process, responsive playing and awareness of learning. The study found that by participating in PRONS the nurses had developed new approaches with different “tools” when difficult situations occurred in daily nursing practice. Conclusion: PRONS with the model PPL has an important role to support nurses in daily nursing practice. The study highlights that there are residual successful effects after PRONS for the nurses in managing care situations that experienced strengthen quality in care and professional development. 展开更多
关键词 NURSING process-oriented SUPERVISION REFLECTION Qualitative DESCRIPTIVE METHOD
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Return to work in young and middle-aged colorectal cancer survivors:Factors influencing self-efficacy,fear,resilience,and financial toxicity 被引量:2
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作者 Dan Hu Yue Li +6 位作者 Hua Zhang Lian-Lian Wang Wen-Wen Liu Xin Yang Ming-Zhao Xiao Hao-Ling Zhang Juan Li 《World Journal of Gastroenterology》 SCIE CAS 2025年第1期79-92,共14页
BACKGROUND Return to work(RTW)serves as an indication for young and middle-aged colorectal cancer(CRC)survivors to resume their normal social lives.However,these survivors encounter significant challenges during their... BACKGROUND Return to work(RTW)serves as an indication for young and middle-aged colorectal cancer(CRC)survivors to resume their normal social lives.However,these survivors encounter significant challenges during their RTW process.Hence,scientific research is necessary to explore the barriers and facilitating factors of returning to work for young and middle-aged CRC survivors.AIM To examine the current RTW status among young and middle-aged CRC survivors and to analyze the impact of RTW self-efficacy(RTW-SE),fear of progression(FoP),eHealth literacy(eHL),family resilience(FR),and financial toxicity(FT)on their RTW outcomes.METHODS A cross-sectional investigation was adopted in this study.From September 2022 to February 2023,a total of 209 participants were recruited through a convenience sampling method from the gastrointestinal surgery department of a class A tertiary hospital in Chongqing.The investigation utilized a general information questionnaire alongside scales assessing RTW-SE,FoP,eHL,FR,and FT.To analyze the factors that influence RTW outcomes among young and middle-aged CRC survivors,Cox regression modeling and Kaplan-Meier survival analysis were used.RESULTS A total of 43.54%of the participants successfully returned to work,with an average RTW time of 100 days.Cox regression univariate analysis revealed that RTW-SE,FoP,eHL,FR,and FT were significantly different between the non-RTW and RTW groups(P<0.05).Furthermore,Cox regression multivariate analysis identified per capita family monthly income,job type,RTW-SE,and FR as independent influencing factors for RTW(P<0.05).CONCLUSION The RTW rate requires further improvement.Elevated levels of RTW-SE and FR were found to significantly increase RTW among young and middle-aged CRC survivors.Health professionals should focus on modifiable factors,such as RTW-SE and FR,to design targeted RTW support programs,thereby facilitating their timely reintegration into mainstream society. 展开更多
关键词 Return to work Colorectal neoplasms Return-to-work self-efficacy Fear of progression Family resilience Financial toxicity
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In situ preparation of zincophilic covalent-organic frameworks with low surface work function and high rigidity to stabilize zinc metal anodes 被引量:3
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作者 Yunyu Zhao Kaiyong Feng Yingjian Yu 《Journal of Energy Chemistry》 2025年第3期524-533,共10页
Zinc-ion batteries(ZIBs)are inexpensive and safe,but side reactions on the Zn anode and Zn dendrite growth hinder their practical applications.In this study,1,3,5-triformylphloroglycerol(Tp)and various diamine monomer... Zinc-ion batteries(ZIBs)are inexpensive and safe,but side reactions on the Zn anode and Zn dendrite growth hinder their practical applications.In this study,1,3,5-triformylphloroglycerol(Tp)and various diamine monomers(p-phenylenediamine(Pa),benzidine(BD),and 4,4"-diamino-p-terphenyl(DATP))were used to synthesize a series of two-dimensional covalent-organic frameworks(COFs).The resulting COFs were named TpPa,TpBD,and TpDATP,respectively,and they showed uniform zincophilic sites,different pore sizes,and high Young's moduli on the Zn anode.Among them,TpPa and TpBD showed lower surface work functions and higher ion transfer numbers,which were conducive to uniform galvanizing/stripping zinc and inhibited dendrite growth.Theoretical calculations showed that TpPa and TpBD had wider negative potential region and greater adsorption capacity for Zn2+than TpDATP,providing more electron donor sites to coordinate with Zn^(2+).Symmetric cells protected by TpPa and TpBD stably cycled for more than 2300 h,whereas TpDATP@Zn and the bare zinc symmetric cells failed after around 150 and200 h.The full cells containing TpPa and TpBD modification layers also showed excellent cycling capacity at 1 A/g.This study provides comprehensive insights into the construction of highly reversible Zn anodes via COF modification layers for advanced rechargeable ZIBs. 展开更多
关键词 Zn ion batteries Covalent organic framework DENDRITE Low surface work function High rigidity
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The Impact of Chinese Teachers’ Career Calling on Job Burnout: A Dual Path Model of Career Adaptability and Work Engagement 被引量:1
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作者 Huaruo Chen Wanru Song +3 位作者 Jian Xie Huadi Wang Feifei Zheng Ya Wen 《International Journal of Mental Health Promotion》 2025年第3期379-400,共22页
Objectives:Teachers are facing unprecedented new challenges leading them to face an increasing number of tasks that are not part of their job,as well as having to cope with the additional skills acquisition that comes... Objectives:Teachers are facing unprecedented new challenges leading them to face an increasing number of tasks that are not part of their job,as well as having to cope with the additional skills acquisition that comes with non-traditional forms of teaching and learning,and increased work pressure leading to an increase in the rate of teachers leaving the profession.Therefore,this study aims to explore the mechanism of the career calling on job burnout through career adaptability and work engagement.Methods:This study conducted a cross-sectional survey of 465 primary and secondary school teachers(PSST)in China's Mainland from the perspective of work adjustment and used structural equation modeling(SEM)to examine the mediating roles of career adaptability and work engagement in the relationship between teachers’career calling and job burnout.Results:The results show that PSSTs are above average in career calling,career adaptability,and work engagement,while job burnout is below average.A significant positive or negative correlation exists between career calling,career adaptability,work engagement,and job burnout.The result of path analysis indicates that career adaptability and work engagement exert an indirect influence on the job burnout of PSST through three paths:namely,the independent intermediary role of career adaptability(EV=−0.144),the independent intermediary role of work engagement(EV=0.172)and the chain intermediary role of the two(EV=0.176).Conclusion:This study emphasizes the importance of career adaptability and work engagement in teacher development in regulating career calling and job burnout.Therefore,on the one hand,we think that if managers want to reduce teachers’job burnout,they need to pay more attention to teachers’career adaptability and work engagement,rather than relying solely on teachers’career calling.On the other hand,it is to remind teachers not to rely on their adjustment to adapt to the work,but also to need outside help as much as possible. 展开更多
关键词 Career calling job burnout career adaptability work engagement structural equation model(SEM)
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Work function-induced spontaneous built-in electric field in Ir/MoSe_(2)for efficient PEM water electrolysis 被引量:1
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作者 Bingjie Zhang Chunyan Wang +2 位作者 Fulin Yang Shuli Wang Ligang Feng 《Chinese Journal of Catalysis》 2025年第8期95-104,共10页
Bifunctional Ir catalysts for proton exchange membrane(PEM)water electrolysis offer transformative potential by streamlining electrolyzer while achieving efficient performance remains challenging due to the distinct c... Bifunctional Ir catalysts for proton exchange membrane(PEM)water electrolysis offer transformative potential by streamlining electrolyzer while achieving efficient performance remains challenging due to the distinct conditions required for oxygen and hydrogen evolution reaction(OER and HER).Herein,we propose a theory-directed design of Ir-based bifunctional catalysts,Ir nanoparticles supported on mesoporous carbon spheres embedded with MoSe_(2)(Ir/MoSe_(2)@MCS),leveraging a work function(WF)-induced spontaneous built-in electric field to enhance catalytic performance.They demonstrate exceptional kinetics for both OER and HER,and potential application in the practical PEM electrolyzer,showcasing the effectiveness of this innovative approach.Low overpotentials of 252 mV for OER and 28 mV for HER to drive 10 mA cm^(-2)were observed,and the PEM electrolyzer showed the current density of 2 A cm^(-2)at 1.87 V and maintained stable activity at 1.65 V for over 30 h to deliver 1 A cm^(-2).Density functional theory calculations reveal that the WF difference at Ir/MoSe_(2)interface induces a spontaneous built-in electric field with asymmetric charge distributions,that modulate the electronic environment and d-band center of Ir promoting bifunctional active phase formation.This significantly lowers reaction barriers for water splitting by balancing intermediate adsorption,endowing the bifunctional activity. 展开更多
关键词 Proton exchange membrane water electrolysis Built-in electric field work function Bifunctional electrocatalyst Iridium catalyst
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Mechanism of work hardening and softening behavior of AZ31 magnesium alloy sheets with hard plate accumulative roll bonding 被引量:1
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作者 Lu Sun Feng Li +2 位作者 Jia Yang Zhang Wen Tao Niu Mu Zi Cao 《Journal of Magnesium and Alloys》 2025年第7期3430-3449,共20页
In this paper,the work hardening and softening behavior of AZ31 magnesium alloy sheets by hard plate accumulative roll bonding(HP-ARB)process in a specific temperature range was studied for the first time,and the cycl... In this paper,the work hardening and softening behavior of AZ31 magnesium alloy sheets by hard plate accumulative roll bonding(HP-ARB)process in a specific temperature range was studied for the first time,and the cyclic stress relaxation test,EBSD,TEM and other characterization methods were used.When the rolling temperature is 350℃,the grain size of magnesium sheets is refined to 4.32(±0.36)μm on average,and it shows an excellent combination of strength and plasticity.The tensile strength reaches 307(±8.52)MPa and the elongation is 12.73(±0.84)%.At this time,the curve of work hardening rate decreases smoothly and the degree of hardening is the lowest,and the amplitude of stress drop △σ_(p) in work softening test is the smallest with the increase of cycle times,which shows that the well coordination between work hardening and softening behavior has been achieved.Research has found that the combined effect of grain boundary strengthening and fine grain strengthening enhances the yield and tensile strength of magnesium sheets after three passes HP-ARB process at 350℃.This is attributed to the high degree of dislocation slip opening in the pyramidal surfaceand<c+a>,which not only coordinates the c-axis strain of the entire grain,but also promotes the slip transfer of dislocations in the fine-grained region,significantly improving the elongation of the sheets.This study provides a new idea for the forming and manufacturing of high performance magnesium alloy sheets. 展开更多
关键词 Magnesium alloy Hard plate accumulative roll bonding Rolling temperature work hardening and softening behavior
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The work hardening and softening behavior of spherical Ti_(p)/Mg-5Zn-0.3Ca composite 被引量:1
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作者 Cui-ju Wang Jin-Kai Zhang +2 位作者 Kai-bo Nie Chao Xu Kun-kun Deng 《Journal of Magnesium and Alloys》 2025年第6期2752-2768,共17页
To obtain the Ti_(p)with different aspect ratios,the Ti_(p)/Mg-5Zn-0.3Ca composite prepared by semi-solid stir casting was subjected to extrusion at 220℃,180℃,and 140℃,respectively.Then,the effect of the Ti_(p)’s ... To obtain the Ti_(p)with different aspect ratios,the Ti_(p)/Mg-5Zn-0.3Ca composite prepared by semi-solid stir casting was subjected to extrusion at 220℃,180℃,and 140℃,respectively.Then,the effect of the Ti_(p)’s aspect ratio on the microstructure,mechanical properties,work hardening and softening behaviors of Ti_(p)/Mg-5Zn-0.3Ca composites was investigated.The results indicated that the Ti_(p)could be elongated obviously after low-temperature extrusion,and the aspect ratio of which would reach to 13.7:1 as the extrusion temperature deceased to 140℃.Then the“Ti/Mg”layer-like structure was formed in the Ti_(p)/Mg-5Zn-0.3Ca composite.Accompanied with the elongation of Ti_(p),the dynamic recrystallized grains and dynamic precipitates were both refined significantly,however,the dynamic recrystallization rate changed a little.The elongated Ti_(p)endowed the Ti_(p)/Mg-5Zn-0.3Ca composites with better matching of strength and toughness without the sacrifice of elongation and bending strain.Both the work hardening rate and softening rate of Ti_(p)/Mg-5Zn-0.3Ca composites increased with the increasing aspect ratio of Ti_(p).The formation of“Ti/Mg”layer-like structure contributed to the redistribution of strain from large aggregations to a network-like distribution,which effectively suppresses the initiation and propagation of micro-cracks,thus enhancing the plasticity of the Ti_(p)/Mg-5Zn-0.3Ca composites. 展开更多
关键词 Ti_(p) Particle reinforced magnesium matrix composites work hardening and softening behavior Laminar-like configuration
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Resting Blood Pressure of Workers in High Stress Urban Occupations
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作者 Stephanie P. B. Caligiuri Jo-Anne Gilchrist +5 位作者 Teal B. Pierce Jose Alejandro Austria Susan D. Hirst Broderick C. Hirst Beverley Gail Pierce Grant N. Pierce 《Occupational Diseases and Environmental Medicine》 2025年第1期30-41,共12页
Background: First responders (firefighters, paramedics, and police) working in an urban setting can be exposed to a high-stress environment caused by strenuous physical exertion, potentially dangerous work conditions,... Background: First responders (firefighters, paramedics, and police) working in an urban setting can be exposed to a high-stress environment caused by strenuous physical exertion, potentially dangerous work conditions, sleep deprivation due to shift work, poor dietary habits, psychological stress and noise levels that are excessive. This may induce chronic increases in blood pressure. The purpose of this study was to determine the presence of hypertension in people working in occupations generally accepted as high stress in comparison to those working in an environment where less of these obvious high stressors were present. Methods: Resting blood pressure was measured by TrUBP in 1067 on-duty first responders (fire, paramedic, and police), and in participants generally associated with a lower-stress work environment (transit workers, city and bank employees, factory workers and legislature employees). Results: The average age, systolic and diastolic blood pressures were significantly lower in those employees working in a high-stress environment than those in a low-stress job. This difference was observed in both male and female sexes. Conclusions: Our data do not support an association of high resting blood pressure values in those employed in activities typically associated with a high-stress urban working environment. 展开更多
关键词 Blood Pressure HYPERTENSION STRESS work Environment
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