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生物医学英文期刊出版政策有关研究透明度的分析

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中国科技期刊研究 2022年第3期33卷 311-319页

作者：赵巍王海娟齐文安韩丹刘冰魏均民中华医学会杂志社总编室北京市100052 医学期刊知识挖掘与服务重点实验室北京市100052 《感染性疾病与免疫(英文)》编辑部北京市100052 《英国医学杂志中文版》编辑部北京市100052 中华医学会杂志社北京市100052

【目的】调研评估我国主办的生物医学英文期刊的出版政策对研究开放和透明的支持度,探寻适合评估中国医学期刊透明度的工具。【方法】采用两种工具(透明度和开放性评估工具、COS透明系数)对期刊支持开放性与透明度进行评价。通过查询Web... 详细信息

【目的】调研评估我国主办的生物医学英文期刊的出版政策对研究开放和透明的支持度,探寻适合评估中国医学期刊透明度的工具。【方法】采用两种工具(透明度和开放性评估工具、COS透明系数)对期刊支持开放性与透明度进行评价。通过查询Web of Science网站,获取2019年SCIE收录的我国主办的英文期刊及其影响因子,筛选获得影响因子大于3的生物医学类期刊,为Ⅰ组期刊;选取2019年“中国科技期刊卓越行动计划”申报期刊中影响因子小于3的生物医学英文类期刊,为Ⅱ组期刊。调研上述期刊的期刊政策是否声明国际医学期刊编辑委员会规定的期刊对披露利益冲突的要求以及对ORCID、伦理审批、作者贡献声明的要求。根据调研结果,结合信息熵加权法和专家打分法明确期刊出版政策体现的研究透明支持度的关键条目,构建适合中国英文期刊透明度现状的评价工具,并对其评价效果进行初步验证。【结果】Ⅰ组期刊共33种,Ⅱ组期刊共31种,大多数期刊都要求对临床试验进行预注册(Ⅰ组:19/33;Ⅱ组:11/31),并鼓励使用报告指南(Ⅰ组:16/33;Ⅱ组:12/31)。Ⅰ组、Ⅱ组分别有22种、16种期刊要求数据共享。Ⅰ组期刊COS透明系数中位数为2(IQR1),Ⅱ组期刊为1(IQR1)。根据收集到的11位专家打分表及应用信息熵加权法分析研究结果,构建以报告指南、伦理审批、预注册、利益冲突声明、作者贡献声明和数据共享声明为构成要素的评价工具,利用该工具重新评估所调研的64种期刊的出版政策对研究透明度的支持度,其与期刊影响因子之间呈弱相关(r=0.435,P=0.003)。【结论】我国期刊出版政策对研究透明度的支持度亟需提升。期刊透明度相关评价体系可作为医学期刊质量,或者医学期刊论文质量评价体系的补充。

关键词：透明度开放科学数据期刊评价体系

Robust adaptive radar beamforming based on iterative training sample selection using kurtosis of generalized inner product statistics

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Journal of Systems Engineering and Electronics 2024年第1期35卷 24-30页

作者： TIAN Jing ZHANG wei School of Information and Electronics Beijing Institute of TechnologyBeijing 100081China National Key Laboratory of Electromagnetic Space Security Chengdu 610036China

In engineering application,there is only one adaptive weights estimated by most of traditional early warning radars for adaptive interference suppression in a pulse reputation interval(PRI).Therefore,if the training samples used to calculate the weight vector does not contain the jamming,then the jamming cannot be removed by adaptive spatial *** the weight vector is constantly updated in the range dimension,the training data may contain target echo signals,resulting in signal cancellation *** cope with the situation that the training samples are contaminated by target signal,an iterative training sample selection method based on non-homogeneous detector(NHD)is proposed in this paper for updating the weight vector in entire range *** principle is presented,and the validity is proven by simulation results.

关键词： adaptive radar beamforming training sample selection non-homogeneous detector electronic jamming jamming suppression

基于数字中台构建科技期刊一体化学术服务平台的战略研究与实践

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编辑学报 2022年第3期34卷 306-311页

作者：沈锡宾马明刘红霞刘冰魏均民中华医学会杂志社新媒体部中华医学会杂志社医学期刊知识挖掘与知识服务重点实验室北京100052

我们结合互联网行业对于中台应用以及中华医学会杂志社近些年数字中台建设实践,提出中台战略思维是学术期刊集群化平台建设路径的一次升华和跃迁。通过顶层设计,合理布局组织架构,将数据、业务、知识等基础服务进行抽象、沉淀,是出版机... 详细信息

我们结合互联网行业对于中台应用以及中华医学会杂志社近些年数字中台建设实践,提出中台战略思维是学术期刊集群化平台建设路径的一次升华和跃迁。通过顶层设计,合理布局组织架构,将数据、业务、知识等基础服务进行抽象、沉淀,是出版机构科技期刊集约化发展的一个重要方向。建设数字中台是科技期刊出版资源整合和有效利用的重要模式;可降低出版机构数据建设和应用系统研发成本,提高知识服务转化效率;有利于激活出版数据商业价值,赋能科技出版的运营与决策;有助于改造科技期刊出版业务流程,实现从经验驱动型向大数据驱动型转变。目前数字中台的建设还存在诸如中台认知问题、数据标准化问题、技术与业务融合问题等各种挑战,但我们相信基于数字中台的一体化学术出版平台将为中国科技期刊数字出版注入新的势能,引领和推动中国科技期刊的快速转型升级。

关键词：数字中台科技期刊数字出版

Deep learning to develop zero-equation based turbulence model for CFD simulations of the built environment

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Building Simulation 2024年第3期17卷 399-414页

作者： Giovanni Calzolari wei Liu Division of Sustainable Buildings Department of Civil and Architectural EngineeringKTH Royal Institute of TechnologyBrinnelvägen 23Stockholm11428Sweden

This study aims to improve the accuracy and speed of predictions for thermal comfort and air quality in built environments by creating a coupled framework between computational fluid dynamics(CFD)simulations and deep learning *** coupling approach is showcased by the development of a data-driven turbulence *** new turbulence model is built using a deep learning neural network,whose mapping structure is based on a zero-equation turbulence model for built environment simulations,and is coupled with the CFD software OpenFOAM to create a hybrid *** neural network is a standard shallow multi-layer *** number of hidden layers and nodes per layer was optimized using Bayesan optimization *** framework is trained on an indoor environment case study,as well as tested on an indoor office simulation and an outdoor building array *** show that the deep learning based turbulence model is more robust and faster than traditional two-equation Reynolds average Navier-Stokes(RANS)turbulence models,while maintaining a similar level of *** model also outperforms the standard algebraic zero-equation model due to its superior ability to generalize to various flow *** some challenges,namely the mapping constraint,the limited training dataset size and the source of generation of training data,the hybrid framework demonstrates the viability of the coupling technique and serves as a starting point for future development of more reliable and advanced models.

关键词： neural networks computational fluid dynamics(CFD) turbulence model OpenFOAM

STANDARDIZING COMPONENTS FOR PRODUCT FAMILY CONFIGURATION DESIGN

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STANDARDIZING COMPONENTS FOR PRODUCT FAMILY CONFIGURATION DE...

2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： wei junmin, JIN Sun, LIN Zhongqin, LAI Xinmin Body Manufacturing Technology Center, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Configuration design for product families plays a very important role in mass customization. It focuses on the arrangements of components or modules in products and their connections and relationships

关键词： Configuration design component standardization form feature similarity analysis.

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老年肿瘤住院患者营养不良的横断面调查

中华老年医学杂志 2019年第11期38卷 1298-1303页

作者：许静涌杨剑陈伟朱明炜韦军民北京医院国家老年医学中心普通外科 100730 重庆医科大学附属第三医院临床营养科 401120 北京协和医院临床营养科 100730

目的应用2019年全球营养领导人发起的营养不良(GLIM)评定标准调查国内老年肿瘤住院患者营养不良的发生情况。方法对2012年收集的多中心1472例年龄≥65岁肿瘤住院患者资料进行回顾性分析,应用GLIM标准进行营养不良评定,调查不同分层的营... 详细信息

目的应用2019年全球营养领导人发起的营养不良(GLIM)评定标准调查国内老年肿瘤住院患者营养不良的发生情况。方法对2012年收集的多中心1472例年龄≥65岁肿瘤住院患者资料进行回顾性分析,应用GLIM标准进行营养不良评定,调查不同分层的营养不良发生情况。结果1472例患者中,营养风险发生率62.8%(924例),按GLIM标准评定的营养不良发生率为51.8%(762例),其中中度营养不良29.6%(436例),重度营养不良22.3%(326例)。营养风险、总营养不良及重度营养不良发生率均随增龄而升高(P=0.000)。非手术患者906例,营养风险发生率61.9%(561例),营养不良发生率53.3%(483例),其中中度营养不良31.2%(283例),重度营养不良22.1%(200例);手术患者566例,营养风险发生率64.1%(363例),营养不良发生率49.5%(280例),其中中度营养不良26.9%(152例),重度营养不良22.6%(128例)。消化道肿瘤的手术患者营养风险发生率高,消化道肿瘤和肺癌患者非手术组患者的营养不良的发生率均高于手术组患者。结论老年肿瘤住院患者营养不良发生率较高,且随增龄有升高趋势。GLIM标准具有临床可操作性,其有效性有待于进一步研究。

关键词：肿瘤营养不良

Optimal retrofitting scenarios of multi-objective energy-efficient historic building under different national goals integrating energy simulation,reduced order modelling and NSGA-II algorithm

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Building Simulation 2024年第6期17卷 933-954页

作者： Hailu wei Yuanhao Jiao Zhe Wang wei Wang Tong Zhang School of Architecture Southeast UniversityNanjingJiangsu Province210096China Key Laboratory of Urban and Architectural Heritage Conservation(Southeast University) Ministry of EducationNanjingChina Department of Civil and Environmental Engineering The Hong Kong University of Science and TechnologyHong KongChina HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute FutianShenzhenChina

Retrofitting a historic building under different national goals involves multiple objectives,constraints,and numerous potential measures and packages,therefore it is time-consuming and challenging during the early design *** study introduces a systematic retrofitting approach that incorporates standard measures for the building envelope(walls,windows,roof),as well as the heating,cooling,and lighting *** retrofit objectives are delineated based on prevailing Chinese *** retrofit measures function as genes to optimize energy-savings,carbon emissions,and net present value(NPV)by employing a log-additive decomposition approach through energy simulation techniques and NSGA-II,yielding 185,163,and 8 ***,a weighted sum method is proposed to derive optimal solutions across multiple *** framework is applied to a courtyard building in Nanjing,China,and the outcomes of the implementation are scrutinized to ascertain the optimal retrofit package under various *** this retrofit,energy consumption can be diminished by up to 63.62%,resulting in an NPV growth of 151.84%,and maximum rate of 60.48%carbon *** three result values not only indicate that the optimal values are achieved in these three aspects of energy saving,carbon reduction and economy,but also show the possibility of possible equilibrium in this multi-objective optimization *** framework proposed in this study effectively addresses the multi-objective optimization challenge in building renovation by employing a reliable optimization algorithm with a computationally efficient reduced-order *** provides valuable insights and recommendations for optimizing energy retrofit strategies and meeting various performance objectives.

关键词： historic building energy-efficient retrofitting building energy simulation log-additive decomposition approach NSGA-II

中国科技期刊集约化数字出版的效益分析——以中华医学会杂志社为例

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中国科技期刊研究 2019年第12期30卷 1304-1310页

作者：沈锡宾刘红霞李鹏刘冰魏均民中华医学会杂志社

【目的】总结中华医学会杂志社2014年以来实施集约化数字出版的实践经验,综合分析社会效益和经济效益,为中国科技期刊的数字出版建设提供实证参考。【方法】分析中华医学会系列期刊的影响因子和总被引频次的变化,比较各期刊在网站建设... 详细信息

【目的】总结中华医学会杂志社2014年以来实施集约化数字出版的实践经验,综合分析社会效益和经济效益,为中国科技期刊的数字出版建设提供实证参考。【方法】分析中华医学会系列期刊的影响因子和总被引频次的变化,比较各期刊在网站建设中的经济投入情况,分析部分编辑部在数字出版和新媒体方面人力资源投入的变化情况,分析中华医学会杂志社在数字出版平台及期刊加盟上的经济收益。【结果】本研究社会效益评估共选择123种中华医学会系列期刊,2014年之后所有期刊的影响因子和总被引频次均有提升;实施集约化数字出版期刊的影响因子和总被引频次比未实施集约化数字出版者提升得更快。采用集约化数字出版方式后,每刊每年的官网建设和运维的经济投入约降低了10%,全文结构化数字加工费用约降低了50%。部分编辑部在数字出版平台和新媒体运营方面的人员投入普遍减少。集约化出版平台在内容付费阅读、会员服务和数字出版平台加盟方面获得了一定收益。【结论】科技期刊集约化数字出版可从人、财、物等方面降低出版商的整体投入,且与期刊的影响因子和总被引频次的提升密切相关。

关键词：科技期刊集约化出版数字出版经济效益影响因子总被引频次中华医学会杂志社

Well posedness analysis of a parabolic-hyperbolic free boundary problem for necrotic tumors growth

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International Journal of Biomathematics 2024年第5期17卷 257-283页

作者： wei Chen Xuemei wei School of Mathematics and Statistics Guangdong University of Technology Guangzhou 510520 P.R.China

In this paper,we study a free boundary problem of tumor growth with necrotic *** model is a parabolic-hyperbolic partial differential equations,which is composed of three first-order nonlinear hyperbolic equations,a parabolic equation and an ordinary differential ***,we obtained the approximation model by polishing the Heaviside function,and then proved the existence and uniqueness of the solution of the approximation *** addition,we improved the regularity of solution of the approximate problem by using the characteristic curves method,and finally proved the global existence of the weak solution of the original problem by the convergence.

关键词： Existence and uniqueness parabolic-hyperbolic free boundary Heaviside