考虑不确定性的电动汽车动力电池逆向物流网络设计     

刘娟娟  郭炎可 《上海海事大学学报》2021,42(2):96-102

考虑到电动汽车动力电池回收量、回收技术水平等参数的不确定性,以逆向物流网络总利润最高和环境影响最小为目标,建立多目标模糊规划模型,进行电动汽车动力电池逆向物流网络设计。利用基于可信性测度的模糊求解方法处理模型中的模糊参数。引入决策者偏好系数,采用加权理想点法将多目标模型转化为单目标模型进行求解,得到考虑不确定性的逆向物流网络设施的选址、数量以及设施间的废旧动力电池流量分配方案。通过数值算例验证模型和算法的可行性和有效性。对回收量、回收技术水平和决策者偏好系数进行灵敏度分析,结果表明:随着回收量的增加,逆向物流网络利润增加;回收技术水平的提升和决策者选择合适的偏好系数可以提高逆向物流网络的经济效益和环境效益。  相似文献   

A learning analytics approach towards understanding collaborative inquiry in a problem-based learning environment     

Asmalina Saleh  Tanner M. Phillips  Cindy E. Hmelo-Silver  Krista D. Glazewski  Bradford W. Mott  James C. Lester 《British journal of educational technology : journal of the Council for Educational Technology》2022,53(5):1321-1342

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新时代思想政治教育“双创”平台建设的对策--以江西省高校为例     

熊淑萍 《教育教学论坛》2022,(7)

“双创”人才是实现科技兴国的基石,如何推进高校“双创”平台建设仍是重中之重。根据江西省高校“双创”平台建设状况,将“双创”人才培养与江西省经济发展相结合,从专业制定、课程制定,以及人才目标制定三方面完善高校“双创”人才培养模式,并通过大数据的信息化思想政治教育平台与高校“双创”平台融合协同,从而改善江西省创新创业环境建设,以利于提高江西省高校“双创”教育水平,为我国提供更多高素质的创新型人才。  相似文献   

Using Q-methodology to determine students' perceptions of interprofessional anatomy education     

Chelsea Mackinnon  Noori Akhtar-Danesh  Andrew Palombella  Bruce Wainman 《Anatomical sciences education》2022,15(5):877-885

Interprofessional education (IPE) prepares healthcare students for collaboration in their future careers. The purpose of this study was to determine which aspects of the IPE Program in Anatomy at McMaster University contributed to the development of healthcare student's interprofessional skills. Q-methodology was used to identify the students' common viewpoints of the IPE experience. A total of 26/28 (93%) of students in the course from the medical, nursing, midwifery, physician assistant, occupational therapy, and physiotherapy programs participated in this study. Students were asked to sort a Q-sample of 43 statements about the IPE dissection course derived from previous qualitative studies of the program. Using the centroid factor extraction and varimax rotation, three salient factors (groups) emerged, namely: (1) Anatomy IPE Enthusiasts, (2) Practical IPE Advocates, and (3) Skeptical IPE Anatomists. The Anatomy IPE Enthusiasts believed that students from different disciplines brought unique anatomical knowledge and each group member guided others through difficult material. The Practical IPE Advocates expressed that they would be stronger advocates for interprofessional teams in the future because of the course. The Skeptical IPE Anatomists strongly disagreed that learning with students from different disciplines helped them gain an understanding of their roles in the context of other healthcare professionals and felt that there was little benefit from the IPE program compared to other non-interprofessional programs. These findings about student attitudes are critical to drive an evidence-based evolution of the IPE dissection course, since students' perceptions can have a profound influence on interprofessional collaboration in the workplace.  相似文献   

Teacher perspectives on partnerships on families of children with autism     

Sarah Westerfield Brooks  Rachel Schwartz  Miguel Ampuero  Anastasia Kokina 《Journal of Research in Special Educational Needs》2023,23(2):79-89

The success of students with disabilities in school and community largely relies on productive family professional partnerships (FPPs). The Individuals with Disabilities Education Act (IDEA, 2004) recognises the importance of family collaboration to student success by mandating that parents be involved in the Individualised Education Plan (IEP) process as full team members. While several previous studies examined the perspectives of parents of children with disabilities on partnerships with educators, less research exists on teacher perspectives on family professional collaborations. Additionally, there are even fewer studies that focus on teacher perspectives on partnerships with parents of children with autism, a disability category which continues to increase in prevalence. The present study contributes to the literature by examining teacher perspectives on factors that build and hinder positive partnerships with families of children with autism. Researchers surveyed 25 Special Education teachers and conducted additional individual interviews and open-ended questionnaires to examine teachers' first-hand experiences. Findings identified four common themes that educators felt helped and hindered collaborative relationships with families. Study results may lead to the development of specific family professional collaboration strategies that can be implemented and discussed in school districts, teacher trainings, pre-service teacher education programs and family workshops.  相似文献   

基于社交网络的个性化知识服务模型研究     

杨瑞仙  李露琪 《新世纪图书馆》2014,(9):9-13

通过对社交网络所产生的海量用户以及数据的挖掘与分析,判断用户不同的特征与喜好,从而为用户定制个性化知识服务,达到用户的需求,增强其对产品与服务的使用黏性,这不仅满足了企业的商业目的,同时也提高了用户的满意度。论文在深入了解我国社交网络的运营模式、分析社交网络中用户行为特征的前提下,提出从用户兴趣模型出发的个性化知识服务,并建立了基于个人兴趣和兴趣传播推荐的个性化知识服务模型。  相似文献   

图书情报学合著网络研究：基于CSSCI基金论文的可视化分析     

侯素芳 《新世纪图书馆》2014,(4):92-96

研究发现,图书情报领域的合著率处于人文社会科学的中等水平,且以2～3人的小规模合著为主导模式;同时发现基金论文有着较高的合著率,基金项目、科研团队、论文产出之间有深刻的内在联系,共同承担重大基金项目往往成为团队形成的内在机制.近年来,图书情报学已经形成“三主多辐”型庞大合著网络,跨省区、跨机构合著、区域学术融合仍亟待加强.  相似文献   

流动人口的社会保障陷阱和社会保障的流动陷阱     

黄匡时  嘎日达 《黑龙江生态工程职业学院学报》2011,(6):1-8

《城镇企业职工基本养老保险关系转移接续暂行办法》并没有摆脱社会保障的制度陷阱、不公平陷阱和低水平陷阱,反而又延伸出了社会保障的流动陷阱和踢皮球陷阱。这些陷阱形成的主要原因不是人口和社会保障的流动造成的,而是社会保障的模式、现行财政制度和相关政策体系以及区域经济社会发展不均衡联合导致的。要摆脱这些陷阱,实现人口和社会保障的自由流动,我们需要以建立健全全国社会保障模式弹性统一为主线,以加强社会保障网络信息化建设为基础,以提高社会保障统筹层次为重点,以衔接城乡二元社会保障制度为突破口,以建立健全社会保障均等化服务转移支付政策体系为支撑,最终实现"全民覆盖、弹性统一、服务均衡、流转自由、可持续发展"的社会保障制度。  相似文献   

Balancing act: Government roles in an energy conservation network     

Andrew Peterman  Arno Kourula  Raymond Levitt 《Research Policy》2014

Government-led interorganizational alliance networks present a sensible opportunity to overcome many societal challenges through collaborative governance. In particular, few researchers have studied alliance networks in the field of energy conservation in commercial buildings—a sector with unique barriers to greater diffusion of innovative cost-saving strategies. We applied an analytic inductive case-based method and social network analysis to study one particular alliance network: the United States Commercial Building Energy Alliances representing interests from retail, commercial real estate, and healthcare sectors. This alliance network was initiated by the United States Department of Energy, with assistance from several federally funded research laboratories in the United States, to promote the diffusion of knowledge and ultimately encourage greater deployment of energy efficiency and clean energy strategies in commercial buildings. We draw upon interview data from 28 cases of private, non-profit, and governmental organizations and complete network data from the alliance participants. We honed in on eight focal cases of governmental organizations to provide insight on how the four forms of energy and environmental data, information, and knowledge shared within an alliance network address the challenge of a vastly underutilized energy resource, namely conservation. Further, we identify and discuss the public's four roles—Commissioner, Interpreter, Marketer, and User—in providing balance to the diffusion of both private and public goods in a network.  相似文献   

Adaptive output feedback neural network control of uncertain non-affine systems with unknown control direction     

Mohammad M. Arefi  Jafar Zarei  Hamid R. Karimi 《Journal of The Franklin Institute》2014

This paper deals with the problem of adaptive output feedback neural network controller design for a SISO non-affine nonlinear system. Since in practice all system states are not available in output measurement, an observer is designed to estimate these states. In comparison with the existing approaches, the current method does not require any information about the sign of control gain. In order to handle the unknown sign of the control direction, the Nussbaum-type function is utilized. In order to approximate the unknown nonlinear function, neural network is firstly exploited, and then to compensate the approximation error and external disturbance a robustifying term is employed. The proposed controller is designed based on strict-positive-real (SPR) Lyapunov stability theory to ensure the asymptotic stability of the closed-loop system. Finally, two simulation studies are presented to demonstrate the effectiveness of the developed scheme.  相似文献