提高石油企业物资供应管理水平的再思考——基于中原油田分公司的视域

油田的物资供应是石油企业降本增效的主要着力点,提高油田物资供应管理的水平意义重大。根据目前石油企业物资供应管理工作中存在的问题,建议油田物资供应管理部门提高物资采购管理工作的水平,加强物资供应管理信息系统的建设,提高物资仓储管理工作的水平,加强对物资供应、使用信息的跟踪和反馈。     

不同干燥温度对茶树菇香气成分的影响

为探讨不同干制温度对茶树菇香气成分的影响,将新鲜茶树菇在不同温度条件下进行千制处理,至水分在11％-13％,再用乙醚进行同时蒸馏萃取香气成分,采用气相色谱质谱联用仪（GC／MS）对香气成分进行分析比较．结果显示：从茶树菇中共检测出30种香气成分,各温度干制样品香气成分数量不同,共有成分仅有十二醇、花生酸、棕榈酸甲酯、8-十八碳烯酸甲酯和顺-11-十八烯酸甲酯．因此,不同干燥温度下干制的茶树菇,其香气成分在种类和数量上存在-定差异．     

我国小微企业融资状况及制约因素分析

融资难是困扰小微企业发展的世界性难题。在对我国小微企业的资金满足度和融资渠道进行了分析后,从小微企业自身和外部环境两个方面详细分析了制约我国小微企业融资的内部因素和外部因素,提出从总体制度设计入手,构建和完善多层次小微企业融资服务体系。     

英语写作中间接性言语特征分析

在英语写作中,当要求用某一领域的知识来作答时,学生往往会复制内容信息,而不是重新建构知识来回答,这就是间接性言语行为。写作认知分析表明,问题与回答的不一致是由于思维活动中任务说明和修辞目标设定的局限性;而学生把问题看成是资料叙述,所以写作是受基于内容和语句的目标所驱动。从写作认知理论和Haliday功能语法主/述位概念两个角度分析学生间接言语行为,有助于了解学生的写作认知过程,同时对英语课堂写作教学有实践指导意义。     

利用频变地震反射系数识别含气储层

地震波在孔隙介质中传播的渐进方程可用于在地震频带内计算法向入射反射系数,这个频变的反射系数可用一个无量纲的参数ε 来表示,ε 可表示为储层流动性参数（即粘滞性的倒数）、流体密度和信号频率的乘积。利用该表达式,对中国新场气田的实际数据进行了计算,新场气田的储层大多为超致密的砂岩并且渗透率很低。在计算结果上观测到了砂岩储层内过渡区的气水界面上反射系数在地震频带内随频率变化的现象。利用该研究结果指导了地震反演并提取了相应的地震属性,这些属性被首先用于进行的流体（气或水）辨别,最后,在此基础上进行了含气和含水储层的识别。     

Should Organizational Behavior Management Expand Its Content?

Abstract

The American Psychological Association (APA) has defined the years 2000 to 2010 as the “Decade of Behavior,” and has been promoting this designation in convention materials, newsletters, media briefs, and professional publications. But APA seems to be avoiding the leading discipline in analyzing and changing behaviors in industrial settings-organizational behavior management (OBM). Furthermore, with only a few exceptions, OBM does not receive the attention it deserves in university psychology departments, including graduate programs in industrial/organizational (I/O) Psychology. This paper entertains reasons for the low and decreasing academic attention to OBM, and offers some possible solutions. It is proposed that OBM is generally discussed in overly simplistic terms; and unlike I/O Psychology, OBM does not draw on the wealth of relevant concepts and principles in other areas, especially cognitive and social psychology. Specific examples are given for expanding the typical boundaries of the OBM curriculum in order to improve organization-based interventions and realize greater opportunities to demonstrate the unique qualities of a behavior analysis approach to real-world problem solving.     

Setups and effective capacity: the impact of lot sizing techniques in an MRP environment

This study investigates how lot sizing techniques influence the profit performance, inventory level, and order lardiness of an assembly job shop controlled by MRP. Four single-level lot sizing techniques are compared by simulation analysis under two levels of master schedule instability and two levels of end item demand. A second analysis investigates the influence of a multilevel lot sizing technique, the generalized constrained-K (GCK) cost modification, on the four single-level techniques at low demand and low nervousness. The analyses reveal a previously unreported phenomenon. Given the same inventory costs, the single-level lot sizing techniques generate substantially different average batch sizes. The lot sizing techniques maintain the following order of increasing average batch size (and decreasing total setup time):

economic order quantity (EOQ)

period order quantity (POQ)

least total cost (LTC)

Silver-Meal heuristic (SML)

The causes for different average batch sizes among the lot sizing techniques are analysed and explained. Demand lumpiness, inherent in multilevel manufacturing systems controlled by MRP, is found to be a major factor. The number of setups each lot sizing technique generates is the primary determinant of profit performance, inventory level, and order tardiness. EOQ, a fixed order quantity technique, is less sensitive to nervousness than the discrete lot sizing techniques. EOQ_, however, generates the smallest average batch size, and, therefore, the most setups. Since setups consume capacity, EOQ, is more sensitive to higher demand. SML generates the largest average batch sizes, and is, therefore, less sensitive to increased demand. At low demand, the other lot sizing techniques perform better on all criteria. They generate smaller batches and, therefore, shorter actual lead times. The GCK cost modification increases the average batch size generated by each lot sizing technique. GCK improves the profit and customer service level of EOQ the lot sizing technique with the smallest batches. GCK causes the other lot sizing techniques to generate excessively large batches and, therefore, excessively long actual lead times.     

Optimum common cycle for scheduling a single-machine multiproduct system with a budgetary constraint

This paper deals with the single machine multi-product lot size scheduling problem, and has two objectives. The first objective is to minimize the maximum aggregate inventory for the common cycle (CC) scheduling policy. A simple and easy-to-apply rule has been developed which determines the optimal production sequence that achieves this objective. The second objective is to find an optimal common cycle for minimizing the average production and inventory costs per unit time, subject to a given budgetary constraint. A method has been presented that achieves this objective     

Enabling the seamless supply chain by exploiting the four smooth material flow controls

A decade after the publication of the concept of smooth material flow via four fundamental principles related to the work of Jay Forrester and John Burbidge (FORRIDGE) the influence of this work on academe and industry is discussed. We show that by extension of their principles via a three-level model which includes the vision and the toolkit, substantial contributions have been made towards new management theory. The associated 12 simplicity rules and uncertainly circle concepts have been exploited within the structured framework provided by the quick scan audit methodology. This generates value stream classification ranging from baseline to exemplar, and a design procedure aimed at material flow best practice. A detailed case study demonstrates the improved industrial performance achievable by this means.     

The strategic role of Human Resource Development in managing core competencies

The Resource-Based View (R-BV) of strategy emphasizes the importance of core competencies as the critical basis for sustainable competitive advantage. Yet, discussions of strategy typically ignore the role of the Human Resource Development (HRD) function in core competency development and management. The literature on strategic HRD is reviewed to locate the R-BV as a basis for redefining HRD's role in organizational strategy. Three strategic roles for the HRD function in core competency management are proposed and discussed: participating in strategic planning, developing core competencies, and protecting them. Specific tasks for each role are proposed. The final section identifies needs for further research as well as the practical implications from this discussion.