好稿外流外稿选优

“好稿外流”造成学报稿原匮乏的情况，在市属高校不同程度地存在着；与此同时，“外稿”却与日俱增，补充了学报的文稿，也带来了用稿的矛盾。解决这个矛盾的正确办法是既不反对好稿外流，又要做了外稿选优的工作，以保证学报的稿源和质量     

钻井环空固液两相流压降模型理论分析

针对直井钻进过程中环空内岩屑运移的特点，对环空中固液两相流动压降进行了理论分析。采用因次分析的方法综合考虑了影响压降的诸多因素，导出了固相摩阻系数与傅劳德数之间的关系，提出了总摩阻系数的理论计算公式，修正了过去计算环空压降时忽略固相引起的压降，为准确进行水力优化设计提供了参考依据。     

葡萄糖氧化酶发酵动力学的研究

利用恒化器研究了葡萄糖氧化酶（ＧＯＤ）发酵动力学，建立了较为合理的恒化培养系统。对采集的数据用计算机进行回归，求得最大比生长速率μｍａｘ＝０．２２５ｈ－１、饱和常数Ｋｓ＝８．９１ｇ／Ｌ、基质得率系数ＹＧｍａｘ＝０．４９ｇ／ｇ以及维持系数ｍ＝０．０２ｇ／ｇ·ｈ。并研究了ｐＨ、ＤＯ、ＮＨ２－Ｎ、葡萄糖酸、细胞产率，酶比活及体积产酶速率等参数随比生长速率变化的规律。在Ｄ＝０．１３１ｈ－１下体积产酶速率（ＤＥ）达最大值，为３．４６×１６．６７μｍｏｌ／ｓ·Ｌ·ｈ，是分批发酵最大体积产酶速率（１．５３×１６．６７μｍｏｌ／ｓ·Ｌ·ｈ）的２．２６倍。     

Determination on ^87Sr/^86Sr ratio and stratigraphic dating of single-grain foraminifera

Information on palaeoocean and palaeoclimate can be recorded in foraminifera, and formation ages of the fo- raminifera are nevertheless essential for such study of pa- laeoenvironment. The growth rate of seamount ferroman- ganese crusts is normally very l…     

NPP distribution related to the terrains along the North-South Transect of Eastern China

Vegetation net primary productivity (NPP) is defined as the accumulative amount of organic matters per unit area and time, which is calculated from the difference between accumulative photosynthesis and accumulative autotrophic respiration by green plants. Since the NPP reflects the physiological and ecological characteristics of the plants and the interactive results of the environmental factors, it is an important index to evaluate a structure of ecological system, functional features and …     

A HEURISTIC PATH-PLANNING METHOD FOR ENHANCING MACHINE-TOOL CONTOUR-FOLLOWING

Nomenclature ki integral action coefficient[s-1]kp speed proportional gain[s-1]kv position proportional gain[s-1]kf feed forward factor of the speed loop[%]M axis mass[kg]V speed[m/s]F driving effort[N]Rc radius of curvature[m]d distance to the apex[m]o lateral offset[m]εcontouring error[m]ωm lowest mechanical resonant frequency[s-1]ζdamping coefficient[-]r inertia ratio[-]μmembership function[-]αcorner angle[rad]x,y horizontal and vertical coordinates[m]?angle to the normal line[rad]1.I…     

MERGING OPTIMALITY CONDITIONS WITH GENETIC ALGORITHM OPERATORS TO SOLVE SINGLE MACHINE TOTAL WEIGHTED TARDINESS PROBLEM

1.Introduction Production sequencing and scheduling is one of the most important activities in production planning and control.Sequencing is defined as the order in which the jobs are processed through the machines.The allocation of machines over time to process a collection of jobs is defined as Scheduling.Several methods have been developed to solve the scheduling problem which can be classified as follows:1)efficient optimal methods,2)implicit and explicit,or complete enumerative methods,a…     

《汽车服务工程》 本科专业课程结构研究与设置

本文旨在分析《汽车服务工程》培养目标、素质标准、能力要求的基础上,对该专业的课程结构及其特点进行了研究。以基础素质教育、工程技术教育和人文社科教育三大类课程构成《汽车服务工程》专业课程体系,明确工科基础特点,扩大专业知识范围,工程技术与人文社科融合为基点设置课程,以实现“厚基础,宽专业”的高素质应用型人才培养模式的基本要求。     

利用体系结构的建模方法支持测试设计的重用

将体系结构的建模方法应用于测试设计,测试设计和软件设计自上至下同步进行.利用基于体系结构的建模方法将软件设计规范和测试设计规范紧密结合,形成统一的模型描述框架,从而构建层次化的测试设计模型,同时给出了测试用例之间关系的精确定义.结论是:基于体系结构的建模方法能够大大提高软件开发过程中各工作产品的可测试性和测试用例的可维护性,能够有效地支持测试设计的重用.     

On the Strong Law of Large Numbers for Non-Independent B-Valued Random Variables

This paper investigates some conditions which imply the strong laws of large numbers for Banach space valued random variable sequences. Some generalizations of the Marcinkiewicz- Zygmund theorem and the HoffmannJφrgensen and Pisier theorem are obtained.