线性规划中的整点最优解     

田继安  王国立 《商丘职业技术学院学报》2007,6(5):20-22

线性规划在实际问题中有着广泛的应用．若能把实际问题转化成线性规划问题，建立正确的数学模型，通过平移找解法和调整优值法可以求出整点最优解和非整点最优解及最优值的整点最优解问题．  相似文献   

用ActiveX方式开发控件的新功能     

王明东  张琳  欧阳彦阶 《十堰职业技术学院学报》2003,16(2):67-68,82

对ActiveX技术及ActiveX部件进行了简单的介绍，并介绍了ActiveX部件的生成和扩展方法。用该方法实现了将一个普通的按纽扩展成了一个新的多媒体按纽。  相似文献   

对递归算法进行“分类探讨”的教学方法研究     

范昊  束德勤 《教育教学论坛》2020,(16):195-196

递归算法或者递归程序是计算机及相关专业高校学生,在大学学习阶段必须掌握的一种程序设计方法。文章首先分析了高校学生在学习递归算法时遇到的难点,然后将递归算法进行不同角度的分类,由易到难详细剖析递归算法的设计思路,最后对递归程序的设计过程进行讲解和总结。文中还结合了实际教学案例,给出了递归算法的讲解和设计过程。  相似文献   

山西省道路建设中存在的问题及对策   总被引：1，自引：0，他引：1  

孙力 《山西广播电视大学学报》2007,12(4):57-58

道路作为交通中人与车的载体,在交通安全中扮演着重要的角色。本文在分析了山西省道路建设中存在的问题及原因的基础上,指出山西省的道路建设应考虑道路线形、交通照明、动静结合性、立体综合性等因素,并提出了相应的改善措施。  相似文献   

Difficulties in Learning and Teaching Programming—Views of Students and Tutors   总被引：1，自引：0，他引：1  

Iain Milne  Glenn Rowe 《Education and Information Technologies》2002,7(1):55-66

We have conducted a web-based questionnaire on the various concepts and topics of object-oriented programming that students on introductory courses found most difficult to cope with.A statistical analysis of our results shows that those topics that rely on a clear understanding of pointers and memory-related concepts (such as copy constructors and virtual functions) prove to be the most difficult. In other words, we believe these concepts are only hard because of the student's inability to comprehend what is happening to their program in memory, as they are incapable of creating a clear mental model of its execution.These results would suggest that a clearer approach to teaching these topics would be beneficial to students. We are currently working on a visualization-based approach to address these issues.  相似文献   

高专学校制定专业建设规划的几个问题     

彭世华 《徐特立研究(长沙师范专科学校学报)》2007,(2):25-29,37

专业在高专学校的教学和建设中居于核心地位。对于现有多数高专学校来讲，制定科学的专业建设规划不仅十分重要，而且十分紧迫。制定专业建设规划应以专业背景分析为基础，从专业培养目标的确立，学科、课程、教材的设置，以及教学计划、师资队伍配备和实验实习基地的装备等方面，进行科学、合理的规划。  相似文献   

Genetic programming-based chaotic time series modeling     

张伟  吴智铭  杨根科 《Journal of Zhejiang University. Science. B》2004,(11)

INTRODUCTION Chaos is based on the principle that simpledeterministic laws can exhibit complex externalbehavior (Hegger and Kantz, 2000); although it isquite difficult to reveal such simple laws from thesystem’s external behavior only. This is mainly dueto the dissipation and sensitivity to initial condi-tions (SIC) properties of the chaotic systems (Weiet al., 2002). Linear system theory has developedfor many years, but has proved to be incapable ofsufficiently modeling the chaot…  相似文献   

Introducing Secondary Education Students to Algorithms and Programming     

Vassilios Dagdilelis  Maya Satratzemi  Georgios Evangelidis 《Education and Information Technologies》2004,9(2):159-173

In Greece, the development of the teaching of Information Technology (IT) in schools has been greatly influenced by the rapid development of technology, making IT literacy a priority for all individuals. Consequently, the teaching of algorithms and programming, with the ulterior motive of teaching modeling as well as problem solving, has been greatly limited in Secondary Education. However, we strongly believe that algorithms and programming constitute an important intellectual tool and should be included in basic education. In any case, both the research literature findings, as well as, our own experience confirm the fact that novice programmers come up against many mental obstacles in their attempts to understand the functioning of programs or the construction of algorithms. In order to deal with these difficulties and successfully teach the elementary concepts of algorithms and programming, we have developed didactic scenarios, which are based on specially designed educational software. In conjunction with this, we are attempting to develop a program for the systematic training of those students who will become IT teachers in Secondary or Primary Education. The most significant findings of our research are summarized as follows: (a) The development of educational software and its experimental use in the teaching process allow us to formulate several general rules related to the specific didactic characteristics, which these environments should include. (b) Educational software is effective only when it is incorporated within the framework of the didactic scenarios that the teacher organizes and which are supported by the software. (c) Teachers do not spontaneously use educational software in the context of this rationale. Therefore, specific training is required so that they adopt and use such software in didactic scenarios.  相似文献   

数控教学模式的改革与探索     

姬清华 《平原大学学报》2004,21(6):100-101

为了适应机械制造业对数控技术应用型人才的迫切需要，数控专业人才的培养模式改革已势在必行，对此，结合实际工作经验，分析了数控教学所面临的问题及原因，从加强师资建设、改革课程体系、重视数控编程教学、加强实践教学等方面阐述了数控教学模式的改革。  相似文献   

长江水质的评价与预测模型     

黄海果  冯祥永  黄小艳 《内江师范学院学报》2006,21(4):81-84

讨论了长江水质的评价与预测问题.利用多指标模糊概率综合评价和水质指数(W Q I)综合评价等方法分别对长江近两年多的水质状况进行对比,分析,检验与定量综合评价.建立相应的线性规划与线性回归模型,找出主要污染物高锰酸盐和氨氮的分布地区.并对长江未来10年的水质污染趋势进行了预测分析,统计了每年最少处理的污水量.  相似文献