“仿数学建模”,中职数学教学的方向之一

中职生的数学基础较差,数学学习兴趣不浓,但喜欢与实际相关的教学活动。数学建模是理论作用于实际的一个优化设计,但其对学生的要求较高,故我们借鉴其要求,采用"仿数学建模"教学方法,使学生学会理论联系实际,培养观察、分析等综合能力。     

数学建模思想融入概率论课程的初步研究与探索

本文通过分析独立院校学生学习概率论的特点及现状,探讨在独立院校概率论教学中融入数学建模思想的必要性,并就教学提出了具体的实践方法和注意事项。     

Digital body preservation: Technique and applications

High-fidelity anatomical models can be produced with three-dimensional (3D) scanning techniques and as such be digitally preserved, archived, and subsequently rendered through various media. Here, a novel methodology—digital body preservation—is presented for combining and matching scan geometry with radiographic imaging. The technique encompasses joining layers of 3D surface scans in an anatomical correct spatial relationship. To do so, a computed tomography (CT) volume is used as template to join and merge different surface scan geometries by means of nonrigid registration into a single environment. In addition, the use and applicability of the generated 3D models in digital learning modalities is presented. Finally, as computational expense is usually the main bottleneck in extended 3D applications, the influence of mesh simplification in combination with texture mapping on the quality of 3D models was investigated. The physical fidelity of the simplified meshes was evaluated in relation to their resolution and with respect to key anatomical features. Large- and medium-scale features were well preserved despite extensive 3D mesh simplification. Subtle fine-scale features, particular in curved areas demonstrated the major limitation to extensive mesh size reduction. Depending on the local topography, workable mesh sizes ranging from 10% to 3% of the original size could be obtained, making them usable in various learning applications and environments.     

数学建模实验教学的探索与实践

介绍《数学建模》实验教学的现状,对于目前实践教学中的不足提出了意见和相关的解决方案和方法。     

基于内容的图像检索高层语义处理方法

从图像语义层次描述方式、图像语义抽取方法两个方面对利用语义进行图像检索的研究状况进行总结,提出建立语义模板用于支撑高层语义检索,同时应用多层次的相关反馈方法建立和修正图像低层特征与高层语义间的联系,缩小图像检索过程中的“语义鸿沟”,达到一定程度语义检索的目的。     

一种面向对象的工作流管理系统的建模思想

工作流建模对工作流管理系统的实现具有重要的作用。用传统的结构化建模方法得到的模型使得控制流和数据流之间存在紧密耦合；面向对象建模方法在抽象方式上又存在缺陷。对建模方法的缺点进行了分析，并提出了一种新的基于面向对象的建模思想。     

Part I: Toward a System of Educational Engineering for Traditional Class Elements: A Case Study in an Introductory Physics Course

In this paper, we present a system for formally characterizing elements of an introductory science class, measuring the performance of a class based on this characterization, and modeling the value of the class based on the measurements. This system allows the iterative improvement of any educational presentation through a model, test, iterate cycle. We propose formal practices involved in iteratively improving an educational experience be called educational engineering.     

数学建模思想在高职数学教学中的运用研究

针对高职教育的特殊性提出在高职数学教学中引入数学建模的思想和方法,介绍从数学概念的形成、定理证明、习题讲解3个方面将数学建模思想和方法融入高职数学的教学中,从而激发学生学习数学的兴趣,提高学生解决实际问题的能力。     

人类肥胖基因克隆和表达

以编码人全长的OBmRNA为模板,用RT-PCR法获得了编码146个氨基酸残基的OBcDNA,并经EcoRI和BamHI双酶切克隆至原核质表达质粒pGEX-1λT中,通过IPTG诱导,以谷胱苷肽巯基转移酶融合蛋白(GSP)方式进行了表达。结论:在原核细胞中获得高效表达。