Decision model for product rollover in manufacturing operations

The purpose of this study is to investigate critical decisions when planning for product rollover at a manufacturing company, and how to organise these decisions. A literature review and a case study are used to develop a decision model. The findings indicate that product rollover can be organised in a five-phase decision model. The research quality is strengthened by a structured literature review, but it can be argued that more empirical research is needed for validation. For researchers, this paper contributes with the identification of critical decisions and a model for product rollover. For practitioners, the study highlights the need to acknowledge the importance of product rollover and its role as a competitive weapon. In earlier studies, product rollover has mainly been investigated from a market perspective, so that this study contributes by investigating the issue from a manufacturing perspective.     

教师职业素养新论

国家于2010年新出台的《国家中长期教育改革和发展规划纲要(2010——2020年)》(以下简称《教育规划纲要》),使教师的职业素养再度引起公众的关注。文章将其归结为"敦品"、"业精"、"敬业"六个字,并从这三个方面入手谈教师的职业素养。     

关于精神文化产品的哲学思考

精神文化产品是以观念形态存在并以一定的物质为载体得以呈现的产品,是精神文化生产者劳动智慧的结晶。社会效益为精神文化产品创作生产导向,经济效益是讲求社会效益的基础。弘扬主旋律,提倡多样化,是把握先进文化的前进方向,发展社会主义文化的根本要求和指导原则,也是指导精神文化产品创作和生产的根本要求和指导原则。精神文化产品的创作生产要坚持先进文化的大众性与文化精品的贴近性的结合。精神文化产品消费是较高层次上的商品消费活动,是商品消费与精神享受的辩证统一。     

生态旅游与旅游生态化辨析

10多年来,生态旅游在中国的发展虽然很快,但理论上悬而未决的争论还较多,集中表现在生态旅游是旅游产品还是旅游发展模式、生态旅游是高档旅游还是大众旅游、生态旅游对象是自然区域还是可以包括地方文化区域等三个方面。同时在发展过程中,生态旅游在中国的实践中也出现了很多非生态化现象和"泛化"现象。这些现象的出现归根结底是由于将生态旅游与旅游生态化混为一谈造成的。本文通过对"生态旅游"、"旅游生态化"的辨析,对相关问题作了初步解答,并试图还原生态旅游的本意,探索今后生态旅游发展的正确途径。     

A Risk Analysis Model in Concurrent Engineering Product Development

Concurrent engineering has been widely accepted as a viable strategy for companies to reduce time to market and achieve overall cost savings. This article analyzes various risks and challenges in product development under the concurrent engineering environment. A three‐dimensional early warning approach for product development risk management is proposed by integrating graphical evaluation and review technique (GERT) and failure modes and effects analysis (FMEA). Simulation models are created to solve our proposed concurrent engineering product development risk management model. Solutions lead to identification of key risk controlling points. This article demonstrates the value of our approach to risk analysis as a means to monitor various risks typical in the manufacturing sector. This article has three main contributions. First, we establish a conceptual framework to classify various risks in concurrent engineering (CE) product development (PD). Second, we propose use of existing quantitative approaches for PD risk analysis purposes: GERT, FMEA, and product database management (PDM). Based on quantitative tools, we create our approach for risk management of CE PD and discuss solutions of the models. Third, we demonstrate the value of applying our approach using data from a typical Chinese motor company.     

顾客在新产品开发中的角色扮演研究

顾客在新产品开发(NPD)中具有越来越重要的作用,他们不仅仅是产品和服务的被动接受者,而且渐渐成为企业知识的主要来源。顾客在NPD中的作用可以用三个不同角色来描述:资源、使用者和共同创造者,并分析了在NPD过程中这三个角色所能发挥的作用。     

学术期刊开放存取的内在逻辑与发展趋势

学术期刊开放存取已经成为目前中国学术期刊界研究的热点问题，学术期刊的属性是分析学术期刊开放存取内在逻辑的前提和基础。从学术期刊的准公共产品属性出发，分析学术期刊开放存取的内在逻辑性，进而通过将开放存取与中国目前发展已相对完善的学术期刊商业数据库传播模式的对比，分析其在中国的发展趋势。分析认为，开放存取模式将不会取代商业数据库传播模式而成为中国学术期刊网络传播模式的主流。     

Lattice path combinatorics for multiple product identities

Lattice paths are enumerated as walks on a lattice under the Delannoy criterion of vertical, horizontal and upward diagonal steps. Delannoy recursions are generalized for arbitrary weights in each of these directions, where the row elements of the Delannoy triangles correspond to lattice paths for all walks at a given length.     

Determining the effects of intraclass correlation on factorial experiments

This paper considers the effects of the presence of eqmi-correlation between observations in a k-way factorial experiment, A technique to provide unbiased F-tests is also constructed.