Search results

1 – 10 of over 20000
Book part
Publication date: 11 September 2020

Murtadha Aldoukhi and Surendra M. Gupta

This chapter proposes a multiobjective model to design a Closed Loop Supply Chain (CLSC) network. The first objective is to minimize the total cost of the network, while the…

Abstract

This chapter proposes a multiobjective model to design a Closed Loop Supply Chain (CLSC) network. The first objective is to minimize the total cost of the network, while the second objective is to minimize the carbon emission resulting from production, transportation, and disposal processes using carbon cap and carbon tax regularity policies. In the third objective, we maximize the service level of retailers by using maximum covering location as a measure of service level. To model the proposed problem, a physical programming approach is developed. This work contributes to the literature in designing an optimum CLSC network considering the service level objective and product substitution.

Book part
Publication date: 15 August 2006

Steven Cosares and Fred J. Rispoli

We address the problem of selecting a topological design for a network having a single traffic source and uncertain demand at the remaining nodes. Solving the associated fixed…

Abstract

We address the problem of selecting a topological design for a network having a single traffic source and uncertain demand at the remaining nodes. Solving the associated fixed charge network flow (FCF) problem requires finding a network design that limits both the fixed costs of establishing links and the variable costs of sending flow to the destinations. In this paper, we discuss how to obtain a sequence of optimal solutions that arise as the demand intensity varies from low levels to high. One of the network design alternatives associated with these solutions will be chosen based upon the dominant selection criteria of the decision maker. We consider both probabilistic and non-probabilistic criteria and compare the network designs associated with each. We show that the entire sequence of optimal solutions can be identified with little more effort than solving a single FCF problem instance. We also provide solution approaches that are relatively efficient and suggest good design alternatives based upon approximations to the optimal sequence.

Details

Applications of Management Science: In Productivity, Finance, and Operations
Type: Book
ISBN: 978-0-85724-999-9

Abstract

Details

Transportation and Traffic Theory in the 21st Century
Type: Book
ISBN: 978-0-080-43926-6

Book part
Publication date: 3 August 2017

Matt Bower

Social networking platforms such as Facebook have infiltrated the lives of many students, and as such it is natural to consider how they can be effectively used to enhance…

Abstract

Social networking platforms such as Facebook have infiltrated the lives of many students, and as such it is natural to consider how they can be effectively used to enhance learning. This chapter provides a comprehensive review of social networking in education from a design perspective. Social networking is defined based on Boyd & Ellison’s seminal definition of connected profiles, and is distinguished from social media for the purposes of investigation. Facebook, Edmodo, and other social networking platforms are briefly described, before summarizing the wide variety of social networking usage reported in the research literature. The various benefits of social networking in education are distilled from the literature, including their capacity to facilitate community building, collaboration, reflection, and expedient access to learning. Issues surrounding the educational use of social networking are also organized into themes, for instance privacy concerns, distraction, cyber-safety, and technical constraints. The implications of findings from the social networking literature are synthesized into learning design and implementation recommendations. The chapter concludes with a discussion of open questions and areas for further investigation.

Details

Design of Technology-Enhanced Learning
Type: Book
ISBN: 978-1-78714-183-4

Book part
Publication date: 29 May 2012

John Parkin and Glen Koorey

Purpose – This chapter reviews planning and design approaches for cycle traffic in order to direct future thinking towards the critical aspects of network design that will have a…

Abstract

Purpose – This chapter reviews planning and design approaches for cycle traffic in order to direct future thinking towards the critical aspects of network design that will have a beneficial impact on the utility and nature of the environment for cycling.

Approach – This chapter provides a critique of the approach of adopting a so-called hierarchy of solutions frequently adopted in western countries with low levels of cycling use.

Findings – The guiding principle for designing routes for cycle traffic is that the bicycle is a vehicle capable of speed and, as a consequence, links and junctions need to be designed according to appropriate geometric design standards. In addition, owing to the nature of the cycle and rider combination, the oft repeated Dutch characteristics for good design for cycle traffic of coherence, directness, attractiveness, safety and comfort remain firm.

Practical implications – The practical implications of the outcomes from the chapter are a method of approach for planning infrastructure for cycle traffic which starts with an analysis of demand and works through to the creation of suitable networks for cycle traffic which are grounded in, and extended from, suitably regulated existing highway networks.

Social implications – An extensive transport system suitable in nature for cycle traffic will attract a wide base of users and consequently allow for the benefits of cycling to be captured.

Value of chapter – The value of the chapter rests in its emphasis on the need to treat cycling as a distinct transport mode and, consequentially, planning and engineering needs to be undertaken in a way conducive to providing the basic necessary infrastructure for such a distinct mode.

Details

Cycling and Sustainability
Type: Book
ISBN: 978-1-78052-299-9

Keywords

Open Access
Book part
Publication date: 1 May 2019

Pekka Huovinen

This study aims to advance networking-based, construction-related business management (BM) knowledge, concepts and practices. The focus is on the supply side and therein…

Abstract

Purpose

This study aims to advance networking-based, construction-related business management (BM) knowledge, concepts and practices. The focus is on the supply side and therein networking between three or more companies on an equal, legal, managerial and organisational basis.

Design/Methodology/Approach

The literature reviewing process has resulted in the identification of 79 construction-related BM concepts published between the years 1990 and 2017. In this paper, the focused review reveals the degrees to which the authors have designed their BM concepts along the networking dimension.

Findings

Indeed, 33 (42 per cent) construction-related BM concepts have been designed along the networking dimension. There are 7 (9 per cent) high-degree, 11 (14 per cent) medium-degree and 15 (19 per cent) low-degree BM concepts. The high-degree ones include Bennett’s (2000) tapestry, Hobday’s (2000) project-based organisation, Cheng and Li’s (2002) partnering model, Love et al.’s (2002) long-term alliance, Kiiras and Huovinen’s (2004) virtual PM company, Helander and Möller’s (2007) network resources as well as Wikström et al.’s (2010) business networks.

Research Limitations/Implications

Aligning with Penrose (1995), networking-based BM may imply a paradigm shift vis-à-vis managing in construction markets, i.e. it is envisioned that many researchers replace a firm with a business network as a unit of theorising.

Practical Implications

It seems that the seven high-degree BM concepts enable firms to manage businesses with similar contexts embedded within construction markets in networking-based, viable ways.

Originality/Value

There is very little applied theoretical knowledge about networking as part of construction-related BM. This exploratory, focused review may trigger future BM research along the networking dimension.

Details

10th Nordic Conference on Construction Economics and Organization
Type: Book
ISBN: 978-1-83867-051-1

Keywords

Abstract

Details

Transportation and Traffic Theory in the 21st Century
Type: Book
ISBN: 978-0-080-43926-6

Abstract

Details

Professional Learning Networks in Design-based Research Interventions
Type: Book
ISBN: 978-1-78769-721-8

Abstract

Details

Advanced Modeling for Transit Operations and Service Planning
Type: Book
ISBN: 978-0-585-47522-6

Book part
Publication date: 26 October 2021

Denise Bedford and Thomas W. Sanchez

This chapter focuses on networks comprised of explicit data sources and information and non-human machines as actors. As non-human actors, we include intelligent agents, robotics…

Abstract

Chapter Summary

This chapter focuses on networks comprised of explicit data sources and information and non-human machines as actors. As non-human actors, we include intelligent agents, robotics, and other forms of interactive artificial intelligence. All six facets of knowledge networks are explored. Given these networks’ peculiar nature, three facets have particular importance, including geography, topology, and relationships. The authors provide profiles of seven networks, including semantic and citation networks, webpage networks, communications and computer networks, and energy grids.

Details

Knowledge Networks
Type: Book
ISBN: 978-1-83982-949-9

1 – 10 of over 20000