市民用花习惯对花卉经营的影响

花文化的研究可以从多个角度去进行,对人们用花习惯的研究,不同性别、年龄、文化程度、不同职业、不同收入水平、不同层次(个性)的人对花卉的需求、消费均有不同的特点,根据这些特点来组织花卉的经营,可以有针对性,同时又会产生一定的经济效益。     

结合山区农村学校实际，开发校本课程资源

《基础教育课程改革纲要（试行）》指出：“为保障和促进适应不同地区、学校、学生的要求，实行国家、地方和学校三级课程管理”，“学校在执行国家和地方课程的同时，应视当地社会、经济发展的具体情况，结合本校的传统和优势，学生的兴趣和需要，开发和选用适合本校的课程”。作为国家课程和地方课程的有益补充，校本课程资源开发的意义是不言而喻的。     

对深圳银商刷卡之争的思考

叙述了深圳银商刷卡风波的经过,从银行、零售企业和政府三方面对刷卡风波进行了深层思考。     

仅用1表示数的最少个数

设n为正整数,f(n)是可以用1以及任意多个 号和×号(以及括号)来表示n时所用1的最少的个数.本文确定了n在若干情形时f(n)的值,改进了参考文献的部分结果,并提出了若干新的猜想.     

起动用铅酸蓄电池试验需注意的几个问题

本文主要讨论了起动用铅酸蓄电池试验时的几个注意点以及对检验结果造成的影响。     

捆用工资实施的细化与探索

从标准公开、程序公开、考核公开及结果公开等方面探讨了捆用工资实施的作用与效果。     

籽用南瓜的高产栽培技术

<正>选用甘肃武威金苹果公司选育的“金1号”“、金2号”杂交一代种。种子处理:1、包装封装前进行包衣处理。2、5月1日至5月5日点播。采用机械开沟,人工铺膜。沟心距1.2米至1.3米,株距25厘米至30厘米,沟口宽40厘米,沟深40厘米。东西水平沟种植。洇沟1天至2天膜下人工点籽,覆土1厘米。     

Study on Approach for Computer-Aided Design and Machining of General Cylindrical Cam Using Relative Velocity and Inverse Kinematics

Cylindrical Cam Mechanism which is one of the best eq uipments to accomplish an accurate motion transmission is widely used in the fie lds of industries, such as machine tool exchangers, textile machinery and automa tic transfer equipments. This paper proposes a new approach for the shape design and manufacturing of the cylindrical cam. The design approach uses the relative velocity concept and the manufacturing approach uses the inverse kinematics concept. For the shape desig n, the contact points betw...     

Modeling of Agile Manufacturing Execution Systems with an Agent-based Approach

Agile manufacturing execution systems (AMES) are used to help manufacturers optimize shop floor production in an agile way. And the modeling of AMES is the key issue of realizing AMES. This paper presents an agent-based approach to AMES modeling. Firstly, the characteristics of AMES and its requirements on modeling are discussed. Secondly, a comparative analysis of modeling methods is carried out, and AMES modeling using an agent-based approach is put forward. Agent-based modeling method not only inherit ...     

Surface Modification Process by Electrical Discharge Machining with Ti Powder Green Compact Electrode

This paper describes a new method of surface modification by Electrical Discharge Machining (EDM). By using ordinary EDM machine tool and kerosene fluid, a hard ceramic layer can be created on the workpiece surface with Ti or other compressed powder electrode in a certain condition. This new revolutionary method is called Electrical Discharge Coating (EDC). The process of EDC begins with electrode wear during EDM,then a kind of hard carbide is created through the thermal and chemical reaction between the wo...