提高物资采购“评标”因素的可操作性之我见

在评标的日常工作过程中,由于物资采购的"评标"因素操作难度大,存在"评标"标准不一,"评标"因素不统一,无法实现"评标"定性、定量的有机结合。人们在进行物资"评标"时,如何选择供应商一直是困扰评委的难题。该如何科学、公正、公平、客观的开展物资采购"评标"评价?文章试图以"同化评标因素的价格、简化评标因素的技术、细化评标因素的服务、深化评标因素的信誉、强化评标因素的严肃性"五方面为切入点,就如何提高物资采购评标因素的可操作性,对评标工作提出个人见解,力图使评标操作更加公平,从而规范我们的采购行为。

浅析提高物资采购“评标”因素的可操作性

在评标工作中,由于物资采购的"评标"因素存在标准不一、因素不统一等情况,导致无法实现"评标"的定性、定量的有机结合。本文试图从"同化评标因素的价格、简化评标因素的技术、细化评标因素的服务、深化评标因素的信誉、强化评标因素的严肃性"五方面切入,就如何提高物资采购评标因素的可操作性对评标工作提出见解,力图使评标操作更加公平,从而规范采购行为。

Spatial and Temporal Differences of Urban Land Comprehensive Carrying Capacity in Guangxi

The comprehensive carrying capacity of urban land can reflect the re- source level, economic scale, social development and environmental pressure of ur- ban land carrying. The assessment indicator system of urban land comprehensive carrying capacity was constructed from the 4 aspects of resource, economy, society, environment, and principal component analysis and cluster analysis were used to evaluate the urban land comprehensive carrying capacity of Guangxi and the 14 cities in 2005-2014, and analyzed its spatial and temporal characteristics as well as the driving forces, with the aim to provide references for improving the urban land comprehensive carrying capacity. The results showed that, the overall urban land comprehensive carrying capacity in Guangxi increased in 2005-2014, and there were significant differences in the land comprehensive carrying capacities among the cities in Guangxi in 2005-2014, in which Liuzhou, Guilin, Nanning belonged to the regions with the highest carrying capacity, while Beihai, Yulin, Wutong belonged to the regions with high carrying capacity, and the carrying capacities of the other cities changed with the changes of time. The economic development degree was an important factor influencing urban land comprehensive carrying capacity, but could not directly represent the urban land comprehensive carrying capacity level.

Risk Assessment of Unmanned Aerial Vehicle Flight Based on Kmeans Clustering Algorithm

To quantify unmanned aerial vehicle(UAV)flight risks in low-altitude airspace,we analyze the factors of UAV flight risks from three aspects:flight conflict,flight environment,and traffic characteristics.The aerial risk index and ground risk index of the UAV are constructed,the index screening model and the UAV flight risk assessment model are established,and a UAV flight risk assessment model based on K-means clustering has been proposed.Meanwhile,numerical simulations show the proposed method can not only evaluate the UAV flight risks effectively,but also provide technical support for UAV risk management and control.

Priority of Factors Affected on Customer＇s Satisfaction in the E-Banking by Using Kano Model and Analytical Hierarchy Process： A Case of Iranian Commercial Bank

The aim of the article is to determine the extent to which customer satisfaction＇s in the e-banking in Semnan area had organizational and customer readiness for developing their services. One of the most important sectors that plays key role for grasping developed condition is banking sector. Banks like other institutions also look for augmenting their profits and increasing their strength by expansion. The designing of bank must involve selection of those that have sufficient success potential. Hence, from several factors of success, the following three criteria factors have been： selected-customer satisfied, one dimensional, and product fully functional. These factors offers three question multi criteria group extracted from a 16 norms. Also, three criteria factors have been studied over a period of five years and important criteria for evaluating the norms. The Analytical Hierarchy Process （AHP） has been employed to calculate the success potential of each norm. The empirical data comprises the longitudinal survey of the agricultural banking of the Semnan province. The paper, also, finds that product fully functional is placed as the first priority.

Evaluation of the propensity for coal spontaneous combustion based on catastrophe theory

Generally, different prevention measures should be taken according to spontaneous combustion propensities. The current methods to evaluate the propensity of coal spontaneous combustion, such as chromatographic method of oxygen adsorption, oxidation kinetics method and activation energy method, are mostly affected by human factors. Their boundaries among different classes of propensities were all established by subjective judgments. A new evaluation method using catastrophe theory is introduced. This method can accurately depict the process of coal spontaneous combustion and the evaluation index, ＂catastrophe temperature＂, be obtained based on the model. In terms of catastrophe temperature, the spontaneous combustion propensity of different coals can be sequenced. Experimental data indicate that this method is appropriate to describe the spontaneous combustion process and to evaluate the propensity of coal svontaneous combustion.

Patterns and determinants of wood physical and mechanical properties across major tree species in China

The physical and mechanical properties of wood affect the growth and development of trees, and also act as the main criteria when determining wood usage. Our understanding on patterns and controls of wood physical and mechanical properties could provide benefits for forestry management and bases for wood application and forest tree breeding. However, current studies on wood properties mainly focus on wood density and ignore other wood physical properties. In this study, we established a comprehensive database of wood physical properties across major tree species in China. Based on this database, we explored spatial patterns and driving factors of wood properties across major tree species in China. Our results showed that(i) compared with wood density, air-dried density, tangential shrinkage coefficient and resilience provide more accuracy and higher explanation power when used as the evaluation index of wood physical properties.(ii) Among life form, climatic and edaphic variables, life form is the dominant factor shaping spatial patterns of wood physical properties, climatic factors the next, and edaphic factors have the least effects, suggesting that the effects of climatic factors on spatial variations of wood properties are indirectly induced by their effects on species distribution.

Evaluation indexes for symptom changes in Chinese medicine

OBJECTIVE: To screen and summarize evaluation indexes for symptom changes in Chinese medicine(CM).METHODS: A case database was established based on information from subsequent patient visits from the case records of famous doctors since 1866.Symptom change descriptions in the database were regarded as research materials. The evaluation indexes of the symptom changes were screened and summarized.RESULTS: In total, 243 evaluation indexes for 256symptoms were summarized. Among them, common symptoms were frequency, quantity, degree,mobility, color, and correlation with fatigue.CONCLUSION: There are many aspects to evaluating the changes in a symptom. Some symptoms occur with other simultaneous symptoms. The alleviation or aggravation of simultaneous symptoms could reflect the corresponding changes in a symptom. The changes of inducing factors are important to judging changes in symptoms.