Ruby on Rails框架研究与应用

介绍了Rails平台,研究了Ruby on Rails架构拓扑,阐述了Ruby on Rails架构的原理和优势。     

Ruby on Rails构建Web敏捷开发

Ruby on Rails作为一种全新的WEB应用开发框架,提供了一套灵活、高效、简洁易用的解决方案,使得Web开发、部署和维护变得更简单和轻松。本文结合成都市铁路局客运卧具管理系统的实际案例,描述了Ruby on Rails便捷的迭代式增量开发和原型系统快速构建。充分展现了Rails框架的敏捷优势。     

Rubyon Rails测试框架研究

Ruby on Rails是一个开源的web开发框架，其轻量级集成式MVC框架特别适合简单高效的开发web应用，此外Nails也提供了自动测试框架，本文将简要介绍此测试工具，并结合Rails项目的实际测试案例，讨论其优点及不足。     

一种快速开发Web应用程序的框架:Ruby on Rails

Ruby是一门免费的、简单的、直观的、可扩展的、可移植的、解释的脚本语言,用于快速而简单的面向对象编程。类似于Perl,它支持处理文本文件和执行系统管理任务的很多特性。Rails则是用Ruby编写的一款完整的、开放源代码的Web框架,目的是使用更简单而且更少的代码编写实际使用的应用程序,其中所有内容(从模板到控制流再到业务逻辑)都是用Ruby编写的。作为一个完整的框架,Rails中的所有的层都是为协同工作而构造的,所以上层开发人员不用自己重复,可以完全只使用一门单一的语言。在Rails中,所有Rails支持基于配置文件和注释的反射(reflec-tion)和运行时扩展。     

一种基于Ruby On Rails的CSCL系统设计

本文在已有计算机支持的协同学习模式基础上,建立了一种基于Ruby On Rails的CSCL系统。文章详细论述了该CSCL系统的理论基础、设计理念与主要功能、系统模块与栏目设置。设计完成的CSCL系统能有效地提高学习者的自主学习积极性,促进学习者的个性发展,激发学习者的创新热情。     

Mapping the Nuclear Fertility Restorer Gene in Rice with Simple Sequence Length Polymorphism （SSLP）

Bulked segregant analysis (BSA) of a F2 population derived from D62A/Ruby B was used to map the nuclear fertility restorer gene for wild abortive (WA) cytoplasmic male sterility. Three hundred and ninety-seven microsatellite primer pairs which distributed on 12 chromosomes were screened for polymorphisms between the parents and between two bulks representing fertile and sterile plants. One microsatellite marker RM182 located on chromosome 7 produced polymorphic products. The nuclear fertility restorer gene for WA cytoplasmic male sterility was mapped on chromosome 7, 7.4cM from RM182.     

基于Rails框架的计算机实验排课系统

该文结合计算机综合实验教学中心排课的特殊性和复杂性,提出了一种针对该中心特殊要求的基于Rails框架的排课系统设计方案,以减轻排课人员的工作量,提高其工作效率,促进教学资源的最大化利用和合理安排。该设计采用Rails框架,大幅度地缩短了系统的开发周期,提高了后期系统维护的效率。     

SMART/ASTC dynamic soft reduction technology and its application on the bloom continuous caster at Pangang

The SMART/ASTC dynamic soft reduction technology of VAI and its application on the 6-strand bloom continuous caster at Pangang, China are presented. The operation results show that soft reduction technology is effective to improve the inner quality of continuously cast blooms. At Pangang, both the central porosity and the central segregation ratings are no more than 1.0, the central shrinkage cavity rating is no more than 0.5, and the central segregation index of carbon is no more than 1.05. Rails made from the blooms have excellent quality and are used for high-speed tracks.     

中国企业将起诉奥巴马违宪

美国风力发电公司Ralls10月初宣布将起诉总统奥巴马违宪,其母公司中国三一重工表示这起诉讼由美国子公司单独发起,三一集团并未参与。事件起因是奥巴马9月28日以涉及国家安全为由,命令Rails放弃收购靠近美国俄勒冈州北部海军基地的四座风力发电厂。     

基于Xapian站内检索的设计与实现

Xapian是一个开放源代码的搜索引擎库,遵循通用公共许可证开发.Xapian用C 语言编写,但透过绑定亦允许使用Perl、Python、PHPJ、ava、Tcl,C#和Ruby等语言.在介绍了概率信息检索模型算法基础上,提出了一种基于Xapian的构建站内检索的方案.     

与万王之父的对话(下)

在上一期的访谈中,我们与“Ruby”和“Sky”谈到了有关《万王之王》的诞生历程与成形,这一期我们将继续之前的内容,谈一谈雷爵资讯对未来的发展与愿景,以及近日在台湾省推出的《创世霹雳》。     

海外华人研究

正浙江大学与伦敦大学亚非学院联合举办的海外华人研究研讨会于2017年4月22日在浙江大学举行。27位中外代表与浙江大学人文学院、外语学院和中国学中心的研究生参加了此次研讨会。来自新加坡国立大学的王赓武教授、伦敦大学亚非学院中国研究院的刘捷玉副教授、Ruby C M Chau教授和Roman Kierst等外国专家学者,浙江大学范捷平教授、李媛教授、刘悦副教授、章宏副教授、傅翼副教授     

基于WEB的计算机基础课辅助实验教学系统的应用研究

计算机网络辅助教学管理系统在高校计算机教学系统中占有重要地位，但系统的建设、管理、维护复杂，需要专业人员，影响了系统的应用及拓展，为此快速构建安全的系统并方便维护，成为设计人员的目标．基于以上思想，本文阐述应用Rails框架设计基于web的计算机辅助实验教学系统的总体思想，详细说明四个主要设计模块：上机管理、检测训练、作业管理和教师管理模块的主要功能，为方便非计算机专业人员构建试题库，改进了传统的考试测验方式，并对系统未来的扩展做了介绍．     

Experimental investigation of the influence of electric field on frost layer growth under natural convection condition

The influence of direct current (DC) electric field on the thickness and mass of frost on a cold vertical plate was investigated. The photos of frost layer growth were taken with and without the presence of electric field, and results showed that the electric field has a strong influence on the frost thickness. The influences of cold plate temperature and ambient temperature on frost thickness and frost mass were also investigated under the natural convection condition with electric field. Experimental results demonstrated that the cold plate temperature has very strong effect on the frost layer thickness, but its influence on frost mass is minor; the influence of ambient temperature on the frost mass is more obvious than that on the frost thickness.     

AN INTRODUCTION OF THE DEPARTMENT OF APPLIED MATHEMATICS

1、Programs of study, term of study Bachelor degree programs on applied mathematics, 4 years; Master degree programs on pure and applied mathematics, 2.5 years; Ph. D. degree programs on applied mathematics, (especially on graphy theory and combinatorial optimization and on applied differential equations), 3 years.     

Applying Discourse Analysis in ELT： a Five Cs Model

Based on a discussion of definitions on Discourse analysis ,discourse is regard as layers consist of five elements--cohesion, coherence, culture, critique and context. Moreover, we focus on applying DA in ELT.     

AVIATION ENVIRONMENTAL

Expatiating on the impact of aviation on the environment and aviation environmental protection projects are expounded, and analyzing on the atmosphere pollution and effects on the aviation noise of aircraft discharge. Researching the approach to control aircraft exhaust pollution and noise pollution, and proposing the technology and management measures to reduce air pollution.     

Research on dynamical derailment system for CRH

With the vehicle speed increase, wheel-rail dynamic coupling becomes stronger and shows more prominent. It may lead to derailment of the vehicle. Based on an improved three-dimensional wheel-rail contact trace algorithm and a new model of wheel-rail contact force, wheel-rail derailment dynamical model is established on CRH vehicle and developed in MATLAB software, which is called dynamical derailment system for CRH (DDSCRH). Analyzed on dynamical derailment process of high speed vehicle by DDSCRH, the critical position on climb wheel and influence factors on lateral force for derailment is obtained. Finally, high-speed vehicle dynamical simulation is verified on DDSCRH by comparing with the results of line test.     

Heat kernel estimates on effective resistance metric spaces

We obtain two-sided estimates of heat kernels on effective-resistance metric spaces by using an analytic approach.Some applications,such as on post-critically finite self-similar sets and on products of effective resistance spaces,are given.     

Modeling on runoff concentration caused by rainfall on hillslopes and application in Maoping slope

Based on the fact that the concentration flowlines of overland flow depend on the surface landform of hillslope, a kinematic wave model was developed for simulating runoff generation and flow concentration caused by rainfall on hillslopes. The model-simulated results agree well with the experimental observations. Applying the model to the practical case of Maoping slope, we obtained the characteristics of runoff generation and infiltration on the slope. Especially, the simulated results adequately reflected the confluent pattern of surface runoff, which offers a scientific foundation for designing the drainage engineering on the Maoping slope.