检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

职业院校教师数字化转型:动因、意涵与路径

职业技术教育 2024年第1期45卷 47-51页

作者：王小明吕智敏上海第二工业大学职业技术教师教育学院上海201209 上海科技管理学校教育研究与督导室

职业院校教师数字化转型源于数字中国建设亟需高质量数字化技术技能人才支撑,职教教师能力结构再造助力高质量数字化人才培养和职教数字化生态重塑倒逼职教教师数字胜任力提升。在剖析从信息素养到数字胜任力之本质转变基础上,提出职教... 详细信息

职业院校教师数字化转型源于数字中国建设亟需高质量数字化技术技能人才支撑,职教教师能力结构再造助力高质量数字化人才培养和职教数字化生态重塑倒逼职教教师数字胜任力提升。在剖析从信息素养到数字胜任力之本质转变基础上,提出职教教师数字化转型的关键核心是数字胜任力,并构建了包含技术、认知、伦理三维度,应用、深化和创新三阶段的“3+3”职教教师数字胜任力框架。职业院校教师数字胜任力发展是一项复杂的系统化工程,需要在宏观层面做好顶层设计、提供制度保障,中观层面开展能力认证、提供资源平台,微观层面融入培养培训方案、嵌入课程体系。

关键词：职业院校教师教育数字化数字化转型数字素养数字胜任力

Exploring nonlinear spatiotemporal effects for personalized next point-of-interest recommendation

在线全文

学校读者我要写书评

暂无评论

信息与电子工程前沿:英文版 2023年第9期24卷 1273-1286页

作者： Xi SUN zhimin lv Collaborative Innovation Center of Steel Technology University of Science and Technology BeijingBeijing 100083China

Next point-of-interest(POI)recommendation is an important personalized task in location-based social networks(LBSNs)and aims to recommend the next POI for users in a specific situation with historical check-in ***-of-the-art studies linearly discretize the user’s spatiotemporal information and then use recurrent neural network(RNN)based models for ***,these studies ignore the nonlinear effects of spatiotemporal information on user preferences and spatiotemporal correlations between user trajectories and candidate *** address these limitations,a spatiotemporal trajectory(STT)model is proposed in this *** use the long short-term memory(LSTM)model with an attention mechanism as the basic framework and introduce the user’s spatiotemporal information into the model in *** the process of encoding information,an exponential decay factor is applied to reflect the nonlinear drift of user interest over time and *** addition,we design a spatiotemporal matching module in the process of recalling the target to select the most relevant POI by measuring the relevance between the user’s current trajectory and the candidate *** evaluate the performance of our STT model with four real-world *** results show that our model outperforms existing state-of-the-art methods.

关键词： Point-of-interest recommendation Spatiotemporal effects Long short-term memory(LSTM) Attention mechanism

意识形态视角下铸牢中华民族共同体意识的实践要求

在线全文

学校读者我要写书评

暂无评论

黑龙江民族丛刊 2024年第2期 1-8页

作者：吕志敏代洪宝王宏德河北民族师范学院教师教育学院河北承德067000 河北民族师范学院马克思主义学院河北承德067000

意识形态是西方哲学发展的思想产物,马克思在培根、特拉西等哲学家的思想基础上,通过对德意志意识形态的批判建构了科学的、完备的意识形态理论,阐明了意识形态的理论特质和功能属性,意识形态具有实践性与先导性的二重属性。铸牢中华民... 详细信息

意识形态是西方哲学发展的思想产物,马克思在培根、特拉西等哲学家的思想基础上,通过对德意志意识形态的批判建构了科学的、完备的意识形态理论,阐明了意识形态的理论特质和功能属性,意识形态具有实践性与先导性的二重属性。铸牢中华民族共同体意识是社会主义意识形态建设的主流话语和实践要素,因而有意识形态的实践性与先导性的双重属性。面向新时代社会主义意识形态建设的实践要求,要在社会主义现代化建设中突出主流意识形态的价值引领、要在意识形态激荡交织中突出铸牢中华民族共同体意识的价值引导,凸显铸牢中华民族共同体意识在社会主义意识形态建设的实践之维和价值之维。

关键词：意识形态中华民族共同体意识实践价值

Nanoscale zero-valent iron/magnetite carbon composites for highly efficient immobilization of U(Ⅵ)

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2019年第2期31卷 377-387页

作者： zhimin lv Shimin Yang Lei Chen Ahmed Alsaedi Tasawar Hayat Changlun Chen School of Chemistry and Chemical Engineering Shandong University of Technology CAS Key Laboratory of Photovoltaic and Energy Conservation Materials Institute of Plasma PhysicsChinese Academy of Sciences NAAM Research Group Faculty of ScienceKing Abdulaziz University Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions Soochow University

Nanoscale zerovalent iron/magnetic carbon(NZVI/MC) composites were successfully synthesized by simply calcining yellow pine and iron precursors. NZVI/MC pyrolyzed at 800°C(NZVI/MC800) had a higher percentage of NZVI and displayed better resistance to aggregation and oxidation of NZVI than samples prepared at other temperatures. The NZVI/MC800 material was applied for the elimination of U(Ⅵ) from aqueous solutions. The results suggested that the NZVI/MC800 displayed excellent adsorption capacity(203.94 mg/g)toward U(Ⅵ). The significant adsorption capacity and fast adsorption kinetics were attributed to the presence of well-dispersed NZVI, which could quickly reduce U(Ⅵ) into U(Ⅳ), trapping the guest U(Ⅳ) in the porous biocarbon matrix. The removal of U(Ⅵ) on the NZVI/MC samples was strongly affected by solution pH. The NZVI/MC samples also displayed outstanding reusability for U(Ⅵ) removal after multiple cycles. These findings indicate that NZVI/MC has great potential for remediation of wastewater containing U(Ⅵ).

关键词： U(VI) Carbon NZVI Adsorption mechanism Reduction

Clinical characteristics and outcomes of hospitalized kidney transplant recipients with COVID-19 infection in China during the Omicron wave:a single-center cohort study

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第6期25卷 529-540页

作者： Duo lv Xishao XIE Qinyun YANG zhimin CHEN Guangjun LIU Wenhan PENG Rending WANG Hongfeng HUANG Jianghua CHEN Jianyong WU Department of Clinical Pharmacy the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Zhejiang Provincial Key Laboratory for Drug Evaluation and Clinical Research Hangzhou 310003China Kidney Disease Center the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Key Laboratory of Kidney Disease Prevention and Control Technology Zhejiang ProvinceHangzhou 310003China Institute of Nephrology Zhejiang UniversityHangzhou 310003China Zhejiang Clinical Research Center of Kidney and Urinary System Disease Hangzhou 310003China The Third Grade Laboratory under the National State Administration of Traditional Chinese MedicineHangzhou 310003China Information Center the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China

Background:Following the short-term outbreak of coronavirus disease 2019(COVID-19)in December 2022 in China,clinical data on kidney transplant recipients(KTRs)with COVID-19 are ***:We conducted a single-center retrospective study to describe the clinical features,complications,and mortality rates of hospitalized KTRs infected with COVID-19 between Dec.16,2022 and Jan.31,*** patients were followed up until Mar.31,***:A total of 324 KTRs with COVID-19 were *** median age was 49 *** median time between the onset of symptoms and admission was 13 ***,azvudine,and nirmatrelvir/ritonavir were administered to 67(20.7%),11(3.4%),and 148(45.7%)patients,***-nine(9.0%)patients were treated with more than one antiviral ***-eight(14.8%)patients were treated with tocilizumab and 53(16.4%)patients received baricitinib *** acute kidney injury(AKI)occurred in 81(25.0%)patients and 39(12.0%)patients were admitted to intensive care *** infections were observed in 55(17.0%)***(15.4%)patients lost their *** 28-d mortality rate of patients was 9.0%and 42(13.0%)patients died by the end of *** Cox regression analysis identified that cerebrovascular disease,AKI incidence,interleukin(IL)-6 level of>6.8 pg/mL,daily dose of corticosteroids of>50 mg,and fungal infection were all associated with an increased risk of death for hospitalized ***:Our findings demonstrate that hospitalized KTRs with COVID-19 are at high risk of *** administration of immunomodulators or the late application of antiviral drugs does not improve patient survival,while higher doses of corticosteroids may increase the death risk.

关键词： Coronavirus disease 2019(COVID-19) Kidney transplant Hospitalization Mortality

An Adaptive Vision Navigation Algorithm in Agricultural IoT System for Smart Agricultural Robots

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2021年第1期66卷 1043-1056页

作者： Zhibin Zhang Ping Li Shuailing Zhao zhimin lv Fang Du Yajian An School of Computer science Inner Mongolia UniversityHohhot010021China Key Laboratory of Wireless Networks and Mobile Computing School of Computer ScienceInner Mongolia UniversityHohhot010021China Simulation Center Air Force Early Warning AcademyWuhan430019China

As the agricultural internet of things(IoT)technology has evolved,smart agricultural robots needs to have both flexibility and adaptability when moving in complex field *** this paper,we propose the concept of a vision-based navigation system for the agricultural IoT and a binocular vision navigation algorithm for smart agricultural robots,which can fuse the edge contour and the height information of rows of crop in images to extract the navigation ***,the speeded-up robust feature(SURF)extracting and matching algorithm is used to obtain featuring point pairs from the green crop row images observed by the binocular parallel vision *** the confidence density image is constructed by integrating the enhanced elevation image and the corresponding binarized crop row image,where the edge contour and the height information of crop row are fused to extract the navigation parameters(θ,d)based on the model of a smart agricultural ***,the five navigation network instruction sets are designed based on the navigation angleθand the lateral distance d,which represent the basic movements for a certain type of smart agricultural robot working in a *** experimental results in the laboratory show that the algorithm proposed in this study is effective with small turning errors and low standard deviations,and can provide a valuable reference for the further practical application of binocular vision navigation systems in smart agricultural robots in the agricultural IoT system.

关键词： Smart agriculture robot 3D vision guidance confidence density image guidance information extraction agriculture IoT

Targeted thrombolysis strategies for neuroprotective effect

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2014年第13期9卷 1316-1322页

作者： Junping Zhang Guoxing Ma zhimin lv Yu Zhou Chunguang Wen Yaqing Wu Ruian Xu School of Biomedical Sciences Huaqiao University & Engineering Research Center of Molicular Medicine Ministry of Education

Stroke is usually treated by systemic thrombolytic therapy if the patient presents within an appropriate time window. There is also widespread interest in the development of thrombolytic agents that can be used in cases of delayed presentation. Current agents that can be used in cases of delayed presentation of nerve damage by thrombus. Current systemic thrombolytic therapy is associated with adverse effects such as fibrinogenolysis and bleeding. In an attempt to increase the efficacy, safety, and specificity of thrombolytic therapy, a number of targeted thrombolytic agents have been studied in recent years. This review focuses on the concepts underlying targeted thrombolytic therapy and describes recent drug developments in this field.

关键词： nerve regeneration review thrombolytic agent fibrinolytic system stroke cerebrovasculardisease neuroprotective drug fibrinolytic mechanism fbrin targeting platelet targeting red bloodcell targeting cerebral hemorrhage NSFC grant neural regeneration

在线全文

学校读者我要写书评

暂无评论

人工智能赋能精准思政的价值、风险及其应对

社会主义核心价值观研究 2023年第6期9卷 34-42页

作者：吕志敏河北民族师范学院教师教育学院

精准思政是精准思维在高校思想政治教育中的实践应用。人工智能赋能精准思政,实现思想政治教育环境的精准优化、教育对象的精准把握、教育过程的精准把控。但人工智能赋能精准思政也面临潜在风险,在客观上造成教学目标与定位的偏移,削... 详细信息

精准思政是精准思维在高校思想政治教育中的实践应用。人工智能赋能精准思政,实现思想政治教育环境的精准优化、教育对象的精准把握、教育过程的精准把控。但人工智能赋能精准思政也面临潜在风险,在客观上造成教学目标与定位的偏移,削弱教育主体的引领性与权威性,导致人文关怀与价值理性缺失等。要以主流意识形态为指引、以打造智能型育人队伍为基石、以消除数字鸿沟为关键、以建立健全法律法规为保障,积极应对人工智能赋能精准思政的潜在风险。

关键词：人工智能精准思政主流意识形态

INVENTORY POLICY FOR DISTRIBUTION SYSTEMS WITH PLOYSUBSTITUTED PRODUCTS IN DEMAND

在线全文

学校读者我要写书评

暂无评论

INVENTORY POLICY FOR DISTRIBUTION SYSTEMS WITH PLOYSUBSTITUT...