Writing a faulty literature review is one of many ways to derail a dissertation. This article summarizes some pivotal information on how to write a high-quality dissertation literature review. It begins with a discussion of the purposes of a review, presents taxonomy of literature reviews, and then discusses the steps in conducting a quantitative or qualitative literature review. The article concludes with a discussion of common mistakes and a framework for the self-evaluation of a literature review.

A guide to writing the dissertation literature review.

Propulsion system development requires new, more affordable manufacturing techniques and technologies in a constrained budget environment, while future in-space applications will require in-space manufacturing and assembly of parts and systems. Marshall is advancing cuttingedge commercial capabilities in additive and digital manufacturing and applying them to aerospace challenges. The Center is developing the standards by which new manufacturing processes and parts will be tested and qualified. Rapidly evolving digital tools, such as additive manufacturing, are the leading edge of a revolution in the design and manufacture of space systems that enables rapid prototyping and reduces production times. Marshall has unique expertise in leveraging new digital tools, 3D printing, and other advanced manufacturing technologies and applying them to propulsion systems design and other aerospace materials to meet NASA mission and industry needs. Marshall is helping establish the standards and qualifications “from art to part” for the use of these advanced techniques and the parts produced using them in aerospace or elsewhere in the U.S. industrial base.

Additive manufacturing

Technological Forecasting and Social Change : 抄録雑誌の概要

We review and discuss recent developments in best–worst scaling (BWS) that allow researchers to measure items or objects on measurement scales with known properties. We note that BWS has some distinct advantages compared with other measurement approaches, such as category rating scales or paired comparisons. We demonstrate how to use BWS to measure subjective quantities in two different empirical examples. One of these measures preferences for weekend getaways and requires comparing relatively few objects; a second measures academics' perceptions of the quality of academic marketing journals and requires comparing a significantly large set of objects. We conclude by discussing some limitations and future research opportunities related to BWS.

An introduction to the application of (case 1) best–worst scaling in marketing research

The fast advances in autonomous driving technology prompt the question of suitable operational models for future autonomous vehicles. A key determinant of the viability of such operational models is the competitiveness of their cost structures. Using a comprehensive analysis of the respective cost structures, this research shows that public transportation (in its current form) will only remain economic in situations which allow substantial bundling of demand. In all other cases, shared and pooled vehicles serve the travel demand more efficiently. In contrast to the general opinion, shared fleets may not be the most efficient alternative due to higher efforts for vehicle cleaning. Moreover, a substantial share of vehicles may remain in private possession and use.

Cost-based analysis of autonomous mobility services

In most supply chains, the application of additive manufacturing (AM) is still far from common. However, various industries ranging from aerospace to consumer goods are investigating its potential ...

Additive manufacturing and supply chains – a systematic review

Containing the COVID-19 Pandemic with Drones - Feasibility of a Drone Enabled Back-up Transport System

This study investigates the potential of additive manufacturing (i.e. 3D printing) to alter established manufacturing and supply chain processes, complementing previous research work that deals wit...

How will the diffusion of additive manufacturing impact the raw material supply chain process

Purpose: The COVID-19 pandemic caused global supply disruptions and shortages that resulted in countries battling over desperately needed (medical) supplies In this mayhem, additive manufacturing (AM) provided relief to the strained healthcare systems and manufacturing environments by offering an alternative way to rapidly produce desired products This study sheds light on how AM was used globally in response to the COVID-19 pandemic Design/methodology/approach: The study undertakes a systematic and content-centric review of 289 additively manufactured products made in response to the COVID-19 pandemic Additionally, quantitative frequency-based text mining and various descriptive analyses were applied that support the investigation of the subject under regard Findings: Results show that AM was primarily used in the medical domain for the production of standard medical items, such as personal protective equipment (PPE) but also for non-obvious and new applications (e g swab simulator, rapid diagnostic kits, etc ) Also, certain paradigm shifts were observed, as the effective move to mass production and the mitigation of problems related to certification and standardization emerged as prominent management prospects Nevertheless, various obstacles arose and remained in the path of lasting AM success, especially with respect to print quality, raw material supply and technological versatility Originality/value: Due to the actuality of the topic under investigation, no comparable study has so far been conducted The systematic review provides a conclusive and precise foundation for further analysis and subsequent discussions Additionally, no comparable study mapping such a wide array of different AM products exists today © 2020, Maximilian Kunovjanek and Christian Wankmuller

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An analysis of the global additive manufacturing response to the COVID-19 pandemic

Harsh terrain, extreme weather conditions, and logistics challenges pose certain risks to rescue workers when they are responding to emergencies in mountainous regions. During time-critical rescue operations, the safety of the rescue team itself is of utmost importance. Recently, the advantages of drone technology to support emergency operations have gained academic attention; a widespread practical implementation, however, is still not taking place. Therefore, in this study, we investigate drones from a practitioners' point of view. We conducted a series of 11 usability tests with a total of 49 scenarios based on realistic emergency circumstances including 288 participants from Austrian and Italian rescue organizations. Participants predominantly came from the field of mountain rescue, while the involvement of fire fighters, emergency medical personnel, or cave rescuers, as well as drone manufacturers and professional pilots adds to the study's generalizability. The empirical insights derived from the usability tests demonstrate the capabilities of drones to reduce operational risks in rescue missions, thereby increasing the safety and performance of response teams. Rescuers benefit from drone usage, especially in urgent missions such as search and rescue and emergency items delivery, as the technology reduces response times while simultaneously minimizing risk exposure. Results also indicate that the technology facilitates more accurate mission planning and management, contributes to preventive risk reduction, and represents a novel technique for emergency-related geographic surveying. Nevertheless, several improvements in terms of drone–helicopter communication and image analysis are required to further enhance the usability of drones for emergency purposes.

Maximilian Kunovjanek

Papers

Additive manufacturing and supply chains – a systematic review

Containing the COVID-19 Pandemic with Drones - Feasibility of a Drone Enabled Back-up Transport System

How will the diffusion of additive manufacturing impact the raw material supply chain process

An analysis of the global additive manufacturing response to the COVID-19 pandemic

Drones in emergency response – evidence from cross-border, multi-disciplinary usability tests