Analysis on Evaluating Comprehensive Efficiency of Enterprise Leaders＇ Performance Based on Scientific Development Outlook

In former researches there are primary theoretical studies and qualitative analyses on enterprise leaders＇ effectiveness and performance, and there are a few studies on quantitative analyses which mostly relies on the method of comparing differences and ratio of divergence to evaluate leaders＇ performance by stage statistics. This paper illustrates how to evaluate Comprehensive Efficiency （CE） based on Scientific Development Outlook, which reflects overall development of enterprise leaders＇ performance, depends on measuring Output Efficiency Index （OEI） and Cost Efficiency Index （CEI） of enterprise leaders＇ performance, and adopts the C^2R model in Data Envelopment Analysis （DEA）.

The Comprehensive Efficiency and Diverse Models of a Traditional Street

This article discusses its cultural background, its comprehen-sive efficiency and diverse models and problems noteworthy in de-sign. In recent years, the traditional-styled street (hereinafter re-ferred to as traditional street) of has emerged in China. Some wererenovated, some newly built, some imitated ancient styles andothers were restored to what they were before (restored to whatthey were in the initial period of or before liberation), the construc-tion techniques were different, but their aims were similar.However, different people have expressed different opinions aboutthis, some praised it, others censured it, so the public opinions arenot uniform. For example, a ribbon-cutting ceremony was held inTianjin for the renovation of the Ancient Cultural Street near theTianhou Palace in Tianjin, the news was played up by local news-papers, it was really a scene of bustle and excitement, people in theconstruction circle, however, made no reaction to it....This culturalstreet on which the construction circle made no comments is to theliking of ordinary local people. This street is seething with activitywith people bustling about all the year round. As reactions to thematter are so sharply contrast, how can the matter be regarded asunimportant. It’s better for the construction circle to probe, from va-rious angles, into the mechanism for the emergence of the tradition-al street and ways for its development than to evade the matter.

Key Technology Research on the Efficient Exploitation and Comprehensive Utilization of Resources in the Deep Jinchuan Nickel Deposit

To understand the resource features and geology in the deep Jinchuan nickel deposit, difficult geological conditions were systematically analyzed, including high stress, fragmentized ore rock, prevalent deformation, difficult tunnel support, complicated rock mechanics, and low mining recovery. An integrated technology package was built for safe, efficient, and continuous mining in a deep, massive, and complex nickel and cobalt mine. This was done by the invention of a large-area continuous mining method with honeycomb drives; the establishment of ground control theory and a technology package for high-stress and fragmented ore rock： and the development of a new type of backfilling cement material, along with a deep backfilling technology that comprises the pipeline transport of high-density slurry with coarse aggregates. In this way, good solutions to existing problems were found to permit the efficient exploitation and comprehensive utilization of the resources in the deep Jinchuan nickel mine. In addition, a technological demonstration in an underground mine was performed using the cemented undercut-and-fill mining method for stressful, frag- mented, and rheological rock.

基于三阶段数据包络分析模型的苏浙沪皖经济圈医院运行效率研究

目的分析2019年苏浙沪皖经济圈内27个城市医院运行效率,为优化苏浙沪皖卫生资源配置和规划提供参考。方法选取苏浙沪皖27个城市医院指标数据,运用三阶段数据包络分析(data envelopment analysis,DEA)模型法,在控制环境变量和剔除随机效应后效率分析。结果苏浙沪皖经济圈医院综合技术效率、纯技术效率和规模效率均值分别为0.941、0.948和0.992。结论苏浙沪皖经济圈内医院运行效率有所差异,环境变量对医院运行效率影响较大,对外部的资源配置存在敏感性不同的差异,应统筹区域医疗资源,提高医院运行效率。

Parameter selection for the hydroconversion of waste polyethylene plastic under mild conditions: A comprehensive evaluation

The hydrogenolysis/hydrocracking of waste polyethylene(PE) has recently been intensively studied, with the general pursuit of low-temperature reaction conditions, increased oil-phase yield, and narrower carbon chain distribution. Before this, we utilized a ball-milled ZSM-22 catalyst loaded with Ru nanoparticles(NPs), which exhibited excellent hydroconversion performance. It deconstructed PE into >80 wt.% oil products under low temperatures and short reaction times. Herein, we investigated the influence of varying temperature/pressure parameters on the degree of specific hydrocracking/internal hydrogenolysis/terminal hydrogenolysis reactions. From the comprehensive energy efficiency perspective, including stirring, reaction, and product separation, as well as taking into account the degree of product isomerization and catalyst lifespan, we analyzed the optimization of parameters. This research abandons the notion that lower temperatures are better and proposes a more comprehensive evaluation framework for low-consumption hydroconversion of PE to produce high-value products.

基于DEA-Malmquist模型的养老机构供给效率研究

目的 评价国内养老机构服务供给效率,了解国内养老机构服务供给现状。方法 应用数据包络分析法对2016—2020年的国内养老机构相关数据进行分析,评估国内养老机构服务供给效率。结果 2016年国内养老机构服务供给的综合技术效率、纯技术效率和规模效率分别为0.872、0.891和0.976,2020年分别为0.940、0.959和0.980。2016—2020年全要素生产率指数均值为0.988,综合技术效率上升2.2%,纯技术效率上升2.0%,技术进步均值下降3.3%。结论 养老机构的整体管理和技术水平是影响服务供给综合技术效率的主要因素。服务供给效率省际发展不均衡,区域间服务供给效率差距有所减小。技术进步是影响养老机构服务供给效率的主要因素。建议提高对养老机构管理水平的重视程度,合理配置养老机构资源,通过加强技术研发、加强养老人才队伍建设等方式提高国内养老机构服务供给效率。

Dynamic evolution trend of comprehensive transportation green efficiency in China:From a spatio-temporal interaction perspective

It is urgent and important to explore the dynamic evolution in comprehensive transportation green efficiency(CTGE)in the context of green development.We constructed a social development index that reflects the social benefits of transportation services,and incorporated it into the comprehensive transportation efficiency evaluation framework as an expected output.Based on the panel data of 30 regions in China from 2003-2018,the CTGE in China was measured using the slacks-based measure-data envelopment analysis(SBM-DEA)model.Further,the dynamic evolution trends of CTGE were determined using the spatial Markov model and exploratory spatio-temporal data analysis(ESTDA)technique from a spatio-temporal perspective.The results showed that the CTGE shows a U-shaped change trend but with an overall low level and significant regional differences.The state transition of CTGE has a strong spatial dependence,and there exists the phenomenon of“club convergence”.Neighbourhood background has a significant impact on the CTGE transition types,and the spatial spillover effect is pronounced.The CTGE has an obvious positive correlation and spatial agglomeration characteristics.The geometric characteristics of the LISA time path show that the evolution process of local spatial structure and local spatial dependence of China’s CTGE is stable,but the integration of spatial evolution is weak.The spatio-temporal transition results of LISA indicate that the CTGE has obvious transfer inertness and has certain path-dependence and spatial locking characteristics,which will become the major difficulty in improving the CTGE.

哈长城市群环境生态效率及其影响因素分析——基于非期望SBM-Shannon Entropy模型

选取哈长城市群的10个城市作为研究对象,利用2006-2015年的面板数据,测算哈长城市群各城市生态效率并分析影响生态效率的因素.首先运用非期望产出的SBM-Shannon Entropy模型计算各市的生态效率CES得分(Comprehensive Efficiency Score,CES),然后构建Tobit回归模型对CES得分的影响因素进行分析.研究结果表明:哈长城市群2006-2015年生态效率CES得分均值在2011-2014年呈下降趋势,2015年有所回升;其中,大庆市、松原市和绥化市生态效率CES得分均值较高,而牡丹江市、吉林市以及辽源市得分均值在0.5以下.回归分析表明:经济发展水平、地区因素、产业结构、地区对外开放程度、科学技术及企业的管理能力对哈长城市群生态效率CES有显著影响.