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1 – 10 of 39Dave C. Longhorn, Shelby V. Baybordi, Joel T. Van Dyke, Austin W. Winter and Christopher L. Jakes
This study aims to examine ship loading strategies during large-scale military deployments. Ships are usually loaded to a stowage goal of about 65% of the ship's capacity. The…
Abstract
Purpose
This study aims to examine ship loading strategies during large-scale military deployments. Ships are usually loaded to a stowage goal of about 65% of the ship's capacity. The authors identify how much cargo to load onto ships for each sailing and propose lower stowage goals that could improve the delivery of forces during the deployment.
Design/methodology/approach
The authors construct several mixed integer programs to identify optimal ship loading strategies that minimize delivery timelines for notional, but realistic, problem variables. The authors study the relative importance of these variables using experimental designs, regressions, correlations and chi-square tests of the empirical results.
Findings
The research specifies the conditions during which ships should be light loaded, i.e. loaded to less than 65% of total capacity. Empirical results show cargo delivered up to 16% faster with a light-loaded strategy compared to fully loaded ships.
Research limitations/implications
This work assumes deterministic sailing times and ship loading times. Also, all timing aspects of the problem are estimated to the nearest natural number of days.
Practical implications
This research provides important new insights about optimal ship loading strategies, which were not previously quantified. More importantly, logistics planners could use these insights to reduce sealift delivery timelines during military deployments.
Originality/value
Most ship routing and scheduling problems minimize costs as the primary goal. This research identifies the situations in which ships transporting military forces should be light loaded, thereby trading efficiency for effectiveness, to enable faster overall delivery of unit equipment to theater seaports.
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C.R. Weisbin, D. Lavery and G. Rodriguez
Describes the technological developments which are establishing the foundation for an exciting era of in situ exploration missions to planets, comets and asteroids with advanced…
Abstract
Describes the technological developments which are establishing the foundation for an exciting era of in situ exploration missions to planets, comets and asteroids with advanced robotic systems. Also outlines important concurrent terrestrial applications and spin offs of the space robotics technology. These include high‐precision robotic manipulators for microsurgical operations and dexterous arm control systems.
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Philipp Heinemann, Michael Schmidt, Felix Will, Sascha Kaiser, Christoph Jeßberger and Mirko Hornung
The paper aims to assess the potential of aircraft operation from city centres to achieve shortened travel times and the involved aircraft design process.
Abstract
Purpose
The paper aims to assess the potential of aircraft operation from city centres to achieve shortened travel times and the involved aircraft design process.
Design/methodology/approach
The paper describes the methodical approach and iterative procedure of the design process. An assessment of potential technologies is conducted to provide the required enhancements to fulfil the constraints following an inner-city operation. Operational procedures were analysed to reduce the noise propagation through flight path optimization. Furthermore, a ground-based assisted take-off system was conceived to lower required take-off field length and to prevent engine sizing just for the take-off case. Cabin design optimization for a fast turnaround has been conducted to ensure a wide utilization spectrum. The results prove the feasibility of an aircraft developed for inner city operation.
Findings
A detailed concept for a 60-passenger single aisle aircraft is proposed for an Entry-Into-Service year 2040 with a design range of 1,500 nautical miles for a load factor of 90 per cent. Although the design for Short Take-off and Landing and low noise operation had to be traded partly with cruise efficiency, a noteworthy reduction in fuel burn per passenger and nautical mile could be achieved against current aircraft.
Practical implications
The findings will contribute to the evaluation of the feasibility and impact of the Flightpath 2050 goal of a 4-h door-to-door by providing a feasible but ambitious example. Furthermore, it highlights possible bottlenecks and problems faced when realizing this goal.
Originality/value
The paper draws its value from the consideration of the overall sizing effects at aircraft level and from a holistic view on an inner-city airport/aircraft concept design for a 4-h door-to-door goal.
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Arto Reiman, Mikael Forsman, Ingela Målqvist, Marianne Parmsund and Annika Lindahl Norberg
The purpose of this paper is to identify various individual factors and combinations thereof that can contribute to truck drivers’ occupational accidents, particularly connected…
Abstract
Purpose
The purpose of this paper is to identify various individual factors and combinations thereof that can contribute to truck drivers’ occupational accidents, particularly connected to work performed outside the cab in various work environments.
Design/methodology/approach
In total, 74 accidents were analysed through in-depth interviews with truck drivers. These interviews were conducted employing the critical incident technique, and analysed utilising a qualitative content analysis approach.
Findings
The contributing factors identified were categorised into 14 categories. In all, 13 of these were grouped into four sections reflecting the drivers’ work outside the cab: “Goods and equipment”, “Loading/unloading area”, “Loading/unloading tasks”, and “Organisation”. A single risk factor was associated with 40 accidents while the other 34 involved combinations of factors.
Research limitations/implications
Although the tasks performed by truck drivers in different countries are probably similar, one limitation might be that all the accidents characterised occurred in one country: Sweden.
Practical implications
The findings reveal that complex combinations of risk factors often contribute to accidents. In addition to the transportation company itself, other stakeholders, such as clients, and designers and manufacturers of technology, may influence the occupational safety of truck drivers. Different stakeholders who could contribute to managerial decision making that is designed to prevent accidents are identified and discussed.
Originality/value
This investigation contributes to an in-depth understanding of the causes of accidents in the transportation industry. The findings are discussed from the perspective of the stakeholders and safety management in an attempt to identify key stakeholders who can improve accident prevention.
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State‐of‐the‐art communications are fast becoming a necessity intoday′s international freighting and transportation industries.Sophisticated logistics chains, offering a fast and…
Abstract
State‐of‐the‐art communications are fast becoming a necessity in today′s international freighting and transportation industries. Sophisticated logistics chains, offering a fast and flexible response to customer demands, require an accurate flow of information for tracking, planning and control. From the outset, many sectors of the shipping and containerization industries saw EDI as a natural technology for the communication of much of this vital information. Describes how EDI is used in port operations and the consequent improvement in scheduling and reduction of paperwork.
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Rakesh Raut and Bhaskar B. Gardas
The reduction of food wastage at every stage of a fresh produce supply chain helps in achieving balance among all three dimensions (social, ecological and economic) of the…
Abstract
Purpose
The reduction of food wastage at every stage of a fresh produce supply chain helps in achieving balance among all three dimensions (social, ecological and economic) of the sustainability and helps in stimulating the growth and development in the agricultural domain. The purpose of this paper is to address the causal factors of post-harvesting losses (PHLs) occurring in the transportation phase.
Design/methodology/approach
Through exhaustive literature survey and expert opinions, 12 crucial barriers to sustainable transportation of fruits and vegetables (F&V) are identified. The interpretive structural modeling (ISM) methodology, a multi-criteria decision-making (MCDM) approach, is employed for developing a structural model of the identified barriers.
Findings
The results of the analysis highlighted that two factors, namely, the non-availability of refrigerated vehicles, and excessive loading on the vehicles, are the most significant barriers to sustainable transportation which are found to have the highest driving power.
Research limitations/implications
The results of the present research are applicable to the F&V supply chains only. The established interrelation among the identified factors depends on the judgments given by the experts which could be biased. The developed ISM model is intended to guide the policy and decision makers for formulating the policies for the performance improvement of the fresh produce value chain.
Originality/value
It is the first research of its kind focusing on the model development of critical factors causing PHLs in the transportation phase of the agricultural fresh produce supply chain using MCDM process.
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Prabir K. Bagchi and Seung‐Kuk Paik
Development and management of ports is a major objective of economic development in many countries. As ownership and operations of seaports have traditionally been in the public…
Abstract
Development and management of ports is a major objective of economic development in many countries. As ownership and operations of seaports have traditionally been in the public sector, restructuring has often been slow and frustrating. Public‐private partnership has been offered by many as a solution. This paper reviews a project at Pusan port, South Korea where close public‐private partnership was the key to success. Relying on the experience gained from the Pusan port, a process model has been offered that many other ports in developing countries can use to achieve successful public‐private collaboration.
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Szu-Yu Kuo, Ya-Ling Kao, Jia-Wei Tang and Pei-Hsuan Tsai
Given the increasing intensity of highly competitive markets, this study aims to evaluate the effect of salespeople's emotional regulation, adaptive selling and customer-oriented…
Abstract
Purpose
Given the increasing intensity of highly competitive markets, this study aims to evaluate the effect of salespeople's emotional regulation, adaptive selling and customer-oriented behavior on sales performance.
Design/methodology/approach
A research model was tested by using a sample of 288 respondents from the logistics industry in Taiwan. Structural equation modeling was used to examine the relationships between emotional regulation, adaptive selling, job resourcefulness, customer-oriented behavior and sales performance.
Findings
The results indicate that emotional regulation, adaptive selling and job resourcefulness can improve customer-oriented behavior, and that customer-oriented behavior and job resourcefulness can enhance sales performance. By highlighting the role of job resourcefulness, the authors find a positive moderating effect among these four dimensions.
Originality/value
The findings can help salespeople integrate customer-oriented behaviors into strategic changes to regulate their own emotions and those of others to productively address and resolve difficult business conditions. The theoretical and managerial implications of this work's contributions to international logistics are also discussed.
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ALTHOUGH this year's show was not as brilliant or as representative as it might have been, there was still a great deal of interest and much worth noting.
This monograph eschews the view that packaging is an exclusively marketing tool, or for that matter the concern of the distribution function alone. The author insists that a total…
Abstract
This monograph eschews the view that packaging is an exclusively marketing tool, or for that matter the concern of the distribution function alone. The author insists that a total systems view should be taken of the multiple purposes which the pack must meet. This poses very real problems for at least three levels—the conceptual acceptance of the proposition, its interpretation into operational terms, and implementation/control of the packaging activity. This discussion is intended for all directors of companies with a substantial recurrent expenditure in packaging as well as for members of the distribution function itself. Accordingly, it takes a managerial rather than a technical view of packaging. It stresses the critical importance of the state of goods on arrival with the customer; the aesthetics and sales power of packaging; the informative role of the pack; issues of unitisation; handling problems at all stages in the channel; and the ecological/environmental aspects in contemporary society. At each juncture, sensible plans of action are proposed.