首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   24篇
  免费   2篇
  国内免费   1篇
系统科学   1篇
丛书文集   1篇
教育与普及   1篇
理论与方法论   1篇
综合类   23篇
  2016年   1篇
  2015年   1篇
  2014年   3篇
  2011年   1篇
  2010年   3篇
  2009年   1篇
  2008年   2篇
  2007年   3篇
  2004年   2篇
  2003年   3篇
  2001年   1篇
  1998年   1篇
  1997年   2篇
  1993年   1篇
  1989年   2篇
排序方式: 共有27条查询结果,搜索用时 31 毫秒
1.
本研究以建立医院科室及岗位绩效评估体系与分配模式为目标,运用海氏评价法确定医院岗位的相对价值,应用平衡记分卡法建立适合与医院的绩效考核体系,并用于考核和评估各科室,各岗位的工作绩效。应用生产函数法确定医院可用于分配的人力成本总量,最终形成从经济核算到工资总额管理,从岗位管理到工作绩效评价的综合评价体系和分配模式,在此基础上开发绩效管理软件产品,由此建立起医院绩效考核和分配模式的信息工具,为国内医院人力资源管理和分配制度改革提供一个可借鉴的模板。  相似文献   
2.
通过构建农村土地增值收益模型,分析现阶段我国农村集体土地增值收益产生机理及增值收益在各主体间的分配关系,发现地方政府通过征地等手段加快农村集体土地国有化进程,所获增值收益绝对量增加,但其增值收益占比下降,农民和村集体经济组织利益也因此受损。认为农村集体土地增值收益应该分为经济收益、社会收益和生态收益,指出地方政府过分追求经济收益,在征地过程中村集体土地潜在价值未能有效体现,提出明晰集体土地产权主体及其权利内容、解决地方政府土地财政、相关利益主体应该追求综合效益等建议。  相似文献   
3.
4.
Precise, real-time measurements of overflow particle size distributions in hydrocyclones are necessary for accurate control of the comminution circuits. Soft sensing measurements provide real-time, flexible, and low-cost measurements appropriate for the overflow particle size distributions in hydrocyclones. Three soft sensing methods were investigated for measuring the overflow particle size distributions in hydrocyclones. Simulations show that these methods have various advantages and disadvantages. Optimal Bayesian estimation fusion was then used to combine three methods with the fusion parameters determined according to the performance of each method with validation samples. The combined method compensates for the disadvantages of each method for more precise measurements. Simulations using real operating data show that the absolute root mean square measurement error of the combined method was always about 2% and the method provides the necessary accuracy for beneficiation plants.  相似文献   
5.
How to allocate a resource efficiently and fairly attracts the attention of both researchers and practitioners. Data envelopment analysis(DEA) has been brought to bear on its solution. The existing literature applies Gini coefficient to measure the fairness in the resource allocation process. However, the Gini coefficient is inapplicable in many applications. This paper proposes a novel centralized resource allocation model based on DEA that considers both the efficiency and the fairness. This paper adopts a notion of fairness, namely α-fairness that is well studied in welfare economics and is of practical significance. The new model integratesα-fairness with DEA to support resource allocation decisions. It aids decision makers in making a trade-off between the efficiency and the fairness. An illustrative application is used to validate the proposed approach.  相似文献   
6.
7.
In order to make full use of wireless spectrum resources,the behavior of cognitive radio (CR)for dynamic spectrum allocation is analyzed based on the game theoretic framework.The traditional spectrum allocation schemes consider the spectrum allocation among independent frequency bands only,without taking into account mutually overlapped frequency bands.For this reason,an optimal allocation etiquette is defined to promote the cross characteristic of the frequency bands in a dynamic spectrum allocation model.New interference operator and interference temperature constraints are introduced in order to realize calculation of the interference,and the corresponding spectrum allocation scenario can be further formulated as a potential game.Based on the characteristic of dynamic selection using the game theory and the interference avoidance rule of interference temperature,the robustness of CR networks is increased and the scenario is more suitable for the dynamic changing of actual wireless communication and energy saving communication systems.Simulation results show that the signal to interference and noise ratio (SINR) level can be significantly improved through the optimal allocation of any available spectrum.The utilization rate of spectrum and throughput of overall CR networks are increased by fully utilizing the spectrum resources in the dynamic spectrum allocation model.  相似文献   
8.
Heavy metal contamination of soils, derived from sewage irrigation, mining and inappropriate utilization of various agrochemicals and pesticides, and so on, has been of wide concern in the last several decades. The Shenyang Zhangshi Irrigation Area (SZIA) in China is a representative area of heavy metal contamination of soils resulting from sewage irrigation for about 30 years. This study investigated the spatial distribution and temporal variation of soil cadmium (Cd) and copper (Cu) contamination in the SZIA. The soil samples were collected from the SZIA in 1990 and 2004; Cd and Cu in soils was analyzed and then the spatial distribution and temporal variation of Cd and Cu in soils were modeled using Kriging methods. The results show that long-term sewage irrigation had caused serious Cd and Cu contamination in soils. The mean and the maximum of soil Cd are markedly higher than the levels in second grade standard soil (LSGSS) in China, and the maximum of soil Cu is close to the LSGSS in China in 2004 and is more than the LSGSS in China in 1990. The contamination magnitude of soil Cd and the soil extent of Cd con- tamination had evidently increased since sewage irrigation ceased in 1992. The contamination magnitude of soil Cu and the soil extent of Cu contamination had evidently increased in topsoil, but obviously decresed in subsoil. The soil contamination of Cd and Cu was mainly related to Cd and Cu reactivation of contaminated sediments in Shenyang Xi River and the import of Cd and Cu during irrigation. The eluviation of Cd and Cu in contaminated topsoil with rainfall and irrigation water was another factor of temporal-spatial variability of Cd and Cu contamination in soils.  相似文献   
9.
本文在对我国1993年事业单位工资制度改革后工作人员工资“活的部分”的分配现状进行分析的基础上,提出事业单位“津贴”的一种分配模式,并给出该分配模式的数学表达式和运行机制。  相似文献   
10.
Ceanom对古海洋氧化还原条件相对变化的另一种可能解释   总被引:2,自引:0,他引:2  
生物成因海洋生成物中的负Ce异常指示上覆水体氧化,负Ce异常消失指示上覆水体还原,这是身心健康为止利用Ce异常值推测古水体氧化还原条件相对变化时所遵循的原理。根据对四川汉源晚奥陶世五峰期地层中REE分配模式和富Ce载体的研究。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号