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基于SWOT分析的公立医院人才引育策略——以山西省某肿瘤专科医院为例

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山西财经大学学报 2024年第S1期46卷 172-174页

作者：白尚鹏耿江山西省肿瘤医院人事科山西太原030012

为探讨公立医院的人才引育策略,以山西省某肿瘤专科医院为例,采用态势分析(SWOT)法研究医院人才引育面临的优势、劣势、机遇和威胁,为进一步做好人才建设工作提供依据支撑。结果显示:样本医院专科优势明显,具备全省较强的科研平台和丰... 详细信息

为探讨公立医院的人才引育策略,以山西省某肿瘤专科医院为例,采用态势分析(SWOT)法研究医院人才引育面临的优势、劣势、机遇和威胁,为进一步做好人才建设工作提供依据支撑。结果显示:样本医院专科优势明显,具备全省较强的科研平台和丰富的临床资源等优势;由于地域位置存在一定劣势,新的引才政策变相挫伤了“本土”人才积极性,造成引才困难;机遇主要来自于共建肿瘤区域医疗中心带来的政策红利,各级领导高度重视支持;威胁主要为受省级其他医院冲击及国际形势的影响,加剧了引才竞争。

关键词： SWOT分析肿瘤专科医院肿瘤区域医疗中心人才引育

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不确定信息下跨期动态的混合减排政策研究

系统工程理论与实践 2024年第7期44卷 2213-2226页

作者：江民星贺一江朱帮助南京信息工程大学气候经济与低碳产业研究院商学院南京210044 广西大学工商管理学院南宁530004

企业减排成本信息不确定性是总量控制(数量政策)或排污费(价格政策)等减排政策低效的重要原因.为缓解这种单一政策低效性,本文考虑配额可储存和借贷的跨期动态情形,在总量控制交易框架引入单边上限价格约束、单边下限价格约束、双边价... 详细信息

企业减排成本信息不确定性是总量控制(数量政策)或排污费(价格政策)等减排政策低效的重要原因.为缓解这种单一政策低效性,本文考虑配额可储存和借贷的跨期动态情形,在总量控制交易框架引入单边上限价格约束、单边下限价格约束、双边价格约束机制,分别设计三类数量-价格相结合的混合政策.本文证明了三类混合政策的市场分散均衡均可实现排放权有效配置;在减排成本信息不可更新条件下,三类混合政策效率严格优于数量或价格政策,且双边价格约束严格优于单边价格约束的混合政策;成本信息可更新条件下,三类混合政策、数量政策和价格政策的效率等价,且可实现总成本有效.针对中国碳市场的数值模拟分析表明,混合政策比现行总量控制交易制度可产生显著成本节约,且双边价格约束的混合政策碳价波动最小.

关键词：不确定信息减排成本混合政策数量和价格政策储存与借贷

波浪荷载下海上风力机桩基础滞回效应及水平承载力变化特性研究

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太阳能学报 2024年第8期45卷 546-553页

作者：姜彤何天乐王璇王静华北水利水电大学河南省岩土力学与结构工程重点实验室郑州450046

该研究以海上风电桩基础为研究对象,采用自主设计的水平加载装置模拟波浪荷载,结合粒子图像测速(PIV)技术开展缩尺模型试验。着重探究不同幅值的波浪荷载加载过程中,桩周土体的循环变形特征及加载前后,海上风力机桩基础水平承载能力变... 详细信息

该研究以海上风电桩基础为研究对象,采用自主设计的水平加载装置模拟波浪荷载,结合粒子图像测速(PIV)技术开展缩尺模型试验。着重探究不同幅值的波浪荷载加载过程中,桩周土体的循环变形特征及加载前后,海上风力机桩基础水平承载能力变化。试验结果表明:桩顶累积转角随加载次数呈线性增长、缓慢增长和稳定发展的三阶段变化特性;桩周土体呈现典型的刚性桩两区域破坏形式,桩右被动区土体位移矢量场和位移云图影响范围受加载幅值变化影响显著;桩顶循环加载荷载位移曲线表现出明显的滞回性,滞回圈随加载次数右移并产生累积位移。伴随着滞回圈面积减小和割线刚度增大,桩周土体由以塑性变形向弹性变形为主导变化;循环加载后的滞回圈有明显捏缩,耗能能力减弱。桩基础水平承载能力及弹性变形能力较加载前均明显提高。

关键词：海上风电波浪荷载桩基础承载特性滞回变化

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On the Mixed Propagator Approach to ρ-ω Mixing

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Communications in Theoretical Physics 2002年第8期38卷 195-199页

作者： YAN Mu-lin jiang Ji-Hao WANG Xiao-Jun CCAST World Laboratory P.O. Box 8730 Beijing 100080 China Center for Fundamental Physics University of Science and Technology of China Hefei 230026 China CCAST World Laboratory P.O. Box 8730 Beijing 100080 China Center for Fundamental Physics University of Science and Technology of China Hefei 230026 China Instite of Theoretical Physics Academia Sinica Beijing 100080 China

The mixed propagator (MP) approach to ρ-ω mixing is discussed. It is found that under the pole-approximation assumption the results of MP approach is not compatible both with the effective Lagrangian theory andwith the experiment measurement criterion. To overcome these inconsistent, we propose a new MP approach in whichthe physical states of ρ and ω are determined by the requirement of experimental measurement to meson resonance. Interms of this new MP approach, the EM pion form factor Fπ and form factors of ρo →π0γ and of ω→πo γ are *** results of Fπ are in good agreement with data. The form factor of ρo →π0γ exhibits a hidden charge-asymmetryenhancement effect which agrees with the prediction of the effective Lagrangian theory.

关键词： isospin breaking, VMD, ρ-ω mixing, decay of vector mesons

Microstructural Evolutions of AA7055 Aluminum Alloy Under Dynamic and Quasi-static Compressions

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Acta Metallurgica Sinica(English Letters) 2014年第2期27卷 272-278页

作者： Yuanyuan Xiong Ning Li Huawen jiang Zhigang Li Zhu Xu lin Liu State Key Lab for Materials Processing and Die & Mould Technology School of Materials Science and EngineeringHuazhong University of Science and Technology

The microstructural evolution of AA7055 aluminum alloy under dynamic impact loading with the strain rate of 1.3 × 10^4 s^-1 controlled by a split Hopkinson pressure bar was investigated, and compared with that under quasi-static mechanical loading in compression with strain rate of 1.0 × 10^-3 s^-1. The quasi-static-compressed sample exhibited equiaxed dislocation cells, which were different from the elongated and incomplete dislocation cells for the alloy undergoing dynamic compression. The high strain-rate compression also induced the formation of localized shear bands in which the recrystallizations characterized as fine equiaxed grains were observed. The microstructural evolutions under both quasi-static and dynamic compressions are rationalized in terms of the dislocation cell model combined with the dislocation kinetics, in addition to the adiabatic temperature rise in shear bands at high strain rate.

关键词： Aluminum alloy Microstructural evolution Dynamic impact loading Dislocation cell Recrystallization

B-Spline-Based Curve Fitting to Cam Pitch Curve Using Reinforcement Learning

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Intelligent Automation & Soft Computing 2023年第5期36卷 2145-2164页

作者： Zhiwei lin Tianding Chen Yingtao jiang Hui Wang Shuqin lin Ming Zhu School of Physics and Information Engineering Minnan Normal UniversityZhang ZhouFujian363000China Department of Electrical and Computer Engineering University of NevadaLas VegasNV89154USA

Directly applying the B-spline interpolation function to process plate cams in a computer numerical control(CNC)system may produce verbose tool-path codes and unsmooth *** paper is devoted to addressing the problem of B-splineﬁtting for cam pitch *** that the B-spline curve needs to meet the motion law of the follower to approximate the pitch curve,we use the radial error to quantify the effects of theﬁtting B-spline curve and the pitch *** problem thus boils down to solving a difﬁcult global optimization problem toﬁnd the numbers and positions of the control points or data points of the B-spline curve such that the cumulative radial error between theﬁtting curve and the original curve is minimized,and this problem is attempted in this paper with a double deep Q-network(DDQN)reinforcement learning(RL)algorithm with data points ***ﬁcally,the RL envir-onment,actions set and current states set are designed to facilitate the search of the data points,along with the design of the reward function and the initialization of the neural *** experimental results show that when the angle division value of the actions set isﬁxed,the proposed algorithm can maximize the number of data points of the B-spline curve,and accurately place these data points to the right positions,with the minimum average of radial *** work establishes the theoretical foundation for studying splineﬁtting using the RL method.

关键词： B-splineﬁtting radial error DDQN RL algorithm global optimal policy

On-chip terahertz orbital angular momentum demultiplexer

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Photonics Research 2024年第5期12卷 1044-1054页

作者： XIAOHAN jiang WANYING LIU QUAN XU YUANHAO LANG YIKAI FU FAN HUANG HAITAO DAI YANFENG LI XUEQIAN ZHANG JIANQIANG GU JIAGUANG HAN WEILI ZHANG Center for Terahertz Waves College of Precision Instrument and Optoelectronics Engineeringand Key Laboratory of Optoelectronics Information and Technology(Ministry of Education)Tianjin UniversityTianjin 300072China Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology School of ScienceTianjin UniversityTianjin 300072China Guangxi Key Laboratory of Optoelectronic Information Processing School of Optoelectronic EngineeringGuilin University of Electronic TechnologyGuilin 541004China School of Electrical and Computer Engineering Oklahoma State UniversityStillwaterOklahoma 74078USA

The terahertz regime is widely recognized as a fundamental domain with significant potential to address the demands of next-generation wireless *** parallel,mode division multiplexing based on orbital angular momentum(OAM)shows promise in enhancing bandwidth utilization,thereby expanding the overall communication channel *** this study,we present both theoretical and experimental demonstrations of an on-chip terahertz OAM *** device effectively couples and steers seven incident terahertz vortex beams into distinct high-quality focusing surface plasmonic beams,and the focusing directions can be arbitrarily *** proposed design strategy integrates space-to-chip mode conversion,OAM recognition,and on-chip routing in a compact space with subwavelength thickness,exhibiting versatility and superior performance.

关键词： demultiplexer momentum angular

RNA Interference-Mediated Downregulation of sAC Gene Inhibits Sperm Hyperactivation in Male Rats(Rattus norvegicus)

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Journal of Integrative Agriculture 2014年第2期13卷 394-401页

作者： YU Jing jiang Xiao-qiang ZHOU Shuai WANG Gen-lin College of Animal Science and Technology Nanjing Agricultural University

Hyperactivation is one of the most critical parts for fertilization, cAMP generated by soluble adenylyl cyclase （sAC） is necessary to activate sperm and is a prerequisite for sperm hyperactivation. The aim of this study is to investigate the function of sAC in hyperactivation in male rats. Four siRNAs of sAC gene were designed and separately transformed into rat sperm using electrotransformation method. Cultured for 12 and 24 h, physiological and biochemical indexes of these sperm were analyzed, and the expressions of some hyperactivation-related genes were detected using real-time PCR. We demonstrated 26.3-30.8% and 49.1-50.5% reduction in sAC at the protein by Western blot and mRNA levels by real-time PCR, respectively. The results showed that two siRNAs, Actb-717 and Actb-4205, were the best RNAi sites for silencing sAC. The VCL （curvilinear velocity） and ALH （amplitude of lateral head displacement） of RNA interference （RNAi）-transfected sperm were reduced, cAMP and protein phosphorylation in RNAi transfected sperm were also decreased. The hyperactivation-related genes, such as CatSper2, LDHC and PKA, were downregulated in the sperm, which sAC was knockdown. These findings demonstrated that sAC might play a critical role in cAMP signaling in the rat sperm hyperactivation, and downregulated sAC gene might prevent the expression of these hyperactivation-ralated genes resulting in sperm dysfunction. These findings suggest that these hyperactivation-ralated genes and sAC are functionally related in sperm hyperactivation and sAC falls into an expanding group of sperm proteins that appear to be promising targets for the development of male contraceptives.

关键词： Rattus norvegicus hyperactivation sAC RNAi male contraceptives

尿沉渣白细胞及细菌定量计数检验在尿路感染诊断中的效能研究

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中国医药指南 2024年第26期22卷 94-96页

作者：林志成江丽明蔡春芬福建省漳州市医院检验科漳州363000

目的探讨尿沉渣白细胞(WBC)及细菌定量计数检验在尿路感染诊断中的效能。方法回顾性研究2023年1月至2023年12月在福建省漳州市医院诊治的250例疑似尿路感染患者的临床资料。入院后均进行尿沉渣WBC和细菌计量检验,并以尿细菌培养结果为... 详细信息

目的探讨尿沉渣白细胞(WBC)及细菌定量计数检验在尿路感染诊断中的效能。方法回顾性研究2023年1月至2023年12月在福建省漳州市医院诊治的250例疑似尿路感染患者的临床资料。入院后均进行尿沉渣WBC和细菌计量检验,并以尿细菌培养结果为金标准,分析尿沉渣WBC与细菌定量计数单一及联合检验的效果,并绘制受试工作者特征(ROC)曲线分析不同检验的诊断效能。结果通过检测,尿细菌培养的阳性率为83.20%,以大肠埃希菌、链球菌、葡萄球菌多见。二者联合的阳性率高于单一检测(P0.05)。以尿细菌培养结果为金标准,尿沉渣WBC联合细菌定量计数诊断尿路感染的灵敏度、特异度及准确度分别为94.23%、76.19%、91.20%,均高于单一检测(P<0.05)。通过ROC曲线分析,尿沉渣WBC联合细菌定量计数的AUC为0.943(95%CI 0.914~3.119),最佳阳性判断值WBC为88.75 U/μl、细菌总数2650个/μl。结论尿沉渣WBC及细菌定量计数检验联合用于尿路感染诊断有着较高检出率,且有良好诊断效能。

关键词：尿沉渣白细胞细菌定量计数尿路感染诊断效能