科创中国

目的 分析《护理管理杂志》不同栏目刊稿数量,为杂志征稿和作者投稿提供参考.方法 同顾性分析2010年至2011年《护理管理杂志》刊出论文,根据不同栏目刊稿量进行分析.结果 《护理管理杂志》研究和经验类文章载文量较高,部分栏目文章缺乏.结论 各栏目刊载量不均衡,提示护理人员的科研范围和空间有待进一步扩大和深入.

Traditional model for calculating performance parameters of a fix-pad journal bearing leads to heavy workload,complicated and changeable formulae as it requires deriving various geometric formulae with different bearing types such as circular journal bearing,dislocated bearing and elliptic bearing.Considering different pad preload ratios for non-standard bearing,traditional model not only becomes more complicated but also reduces scalability and promotion of the calculation programs.For the complexly case of traditional model while dealing with various fix-pad journal bearings,unified coordinate system model for performance calculation of fix-pad journal bearing is presented in the paper.A unified coordinate system with the bearing center at the origin is established,and the eccentricity ratio and attitude angle of axis relative to each pad are calculated through the coordinates of journal center and each pad center.Geometric description of fix-pad journal bearing is unified in this model,which can be used for both various standard bearing and non-standard bearing with different pad preload ratios.Validity of this model is verified with an elliptical bearing.Performance of a non-standard four-leaf bearing with different pad preload ratios is calculated based on this model.The calculation result shows that increasing preload ratio of the pad 1 and keeping that of the left three pads constant improves bearing capacity,stiffness and damping coefficients.This research presents a unified coordinate system model unifies performance calculation of fix-pad journal bearings and studied a non-standard four-leaf bearing with different pad preload ratios,the research conclusions provides new methods for performance calculation of fix-pad journal bearings.

Axial-grooved gas-lubricated journal bearings have been widely applied to precision instrument due to their high accuracy, low friction, low noise and high stability. The rotor system with axial-grooved gas-lubricated journal bearing support is a typical nonlinear dynamic system. The nonlinear analysis measures have to be adopted to analyze the behaviors of the axial-grooved gas-lubricated journal bearing-rotor nonlinear system as the linear analysis measures fail. The bifurcation and chaos of nonlinear rotor system with three axial-grooved gas-lubricated journal bearing support are investigated by nonlinear dynamics theory. A time-dependent mathematical model is established to describe the pressure distribution in the axial-grooved compressible gas-lubricated journal bearing. The time-dependent compressible gas-lubricated Reynolds equation is solved by the differential transformation method. The gyroscopic effect of the rotor supported by gas-lubricated journal bearing with three axial grooves is taken into consideration in the model of the system, and the dynamic equation of motion is calculated by the modified Wilson-θ-based method. To analyze the unbalanced responses of the rotor system supported by finite length gas-lubricated journal bearings, such as bifurcation and chaos, the bifurcation diagram, the orbit diagram, the Poincaré map, the time series and the frequency spectrum are employed. The numerical results reveal that the nonlinear gas film forces have a significant influence on the stability of rotor system and there are the rich nonlinear phenomena, such as the periodic, period-doubling, quasi-periodic, period-4 and chaotic motion, and so on. The proposed models and numerical results can provide a theoretical direction to the design of axial-grooved gas-lubricated journal bearing-rotor system.

等级医院评审标准为医院管理带来了新的理念.为适应评审标准的要求,达到评审的目的,护理部通过解读标准、强化培训、反复自查整改等措施,逐步使各级人员落实标准的意识不断增强,各项工作的落实更加规范,持续质量改进的理念不断强化,逐步形成了按照标准良性运行的有效机制.

本文认为,基层税收征管体系改革,必须以明确征纳双方法律权责、切实提高纳税遵从度和科学可控为目标.在改革原则上,要后移控制措施,前置应需服务;注重分析预警,加强税源管控;强化激励监督,健全内部管理.在整体架构设计上,应划分为宣导办税、税务管理和检查内控3个环节,其工作重点分别为满足需求、预警控制和监督考核.

文章对工作家庭冲突的定义、常用测量工具和国内外研究现状进行综述,并总结了工作家庭冲突的影响因素,结合我国护理专业特点提出平衡工作家庭关系的措施.

美国公共行政理论中的管理主义范式经历了萌芽、形成、拓展和成熟四个发展阶段.实证主义是管理主义的哲学基础,因为实证主义为管理主义提供了方法论基础,而管理主义是实证主义在管理领域的具体应用.美国公共行政理论中的管理主义是在与宪政主义的争论中得以发展和完善的,其理论体系由单一化、片面化逐渐走向多元化、系统化;理论研究由注重经济、效率价值转向既注重经济、效率价值,又兼顾人本价值,这是美国公共行政理论中管理主义发展的内在逻辑.

目的 调查实习男护生职业生涯规划现状,为其职业规划指导提供依据.方法 采用一般资料调查表和护理专业大学生个人职业生涯规划问卷对67名临床实习的男护生进行凋查.结果 67名实习男护生职业生涯规划总均分为(89.37±13.62)分处于中等偏下水平,其中就业信心因子得分最低为(11.62±1.52)分.学历、学生干部经历、是否第一志愿报考护理专业、职业生涯指导课程经历等因素是实习男护生职业生涯规划的影响因素.结论 护理专业学生工作中应该制订针对男护生的职业指导体系,从而帮助男护生科学规划、合理就业和个人在职业生涯中的全面、可持续发展.

范式是科学共同体共享的价值、信念和技术的有序结构,是科学理论得以建构的路径和方式.现代教育管理学诞生之初,应对20世纪初大工业时代对教育发展的要求,移植了现代管理学的研究范式.以实用主义和功利主义为价值基础,用经济活动的规律指导教育管理实践,采用理性人假设,将利益驱动作为人与人互动的基本模式,以此作为现代教育管理学理论的发展路径.由于教育的去功利化发展,现代教育管理学范式中固有的教育活动与经济活动的内在矛盾得以发展,技术架构与价值实践的矛盾凸显,现代教育管理学遭遇了理论发展和实践应用的双重危机.

针对期刊评价实践中专家评审数据获取困难的问题,建议利用现有引文数据库提供的信息构建新型专家评议指标,以测度期刊在学科专家群体中的影响力.提出期刊z指数指标并以国内图情类核心期刊为例进行实证研究,认为该方法能有效获取可反映专家评价意见的客观数据,而且具有成本低、可信度较高等优势.