Design Heuristics for Additive Manufacturing Validated Through a User Study1

2019 ◽  
Vol 141 (4) ◽  
Author(s):  
Alexandra Blösch-Paidosh ◽  
Kristina Shea
Keyword(s):  
Additive Manufacturing ◽  
Future Research ◽  
Original Design ◽  
Design Heuristics ◽  
The Media ◽  
Novice Designers ◽  
Traditional Manufacturing ◽  
High Level ◽  
Independent Design ◽  
The Impact

Additive manufacturing (AM) has unique capabilities when compared to traditional manufacturing, such as shape, hierarchical, functional, and material complexity, a fact that has fascinated those in research, industry, and the media for the last decade. Consequently, designers would like to know how they can incorporate AM's special capabilities into their designs but are often at a loss as how to do so. Design for additive manufacturing (DfAM) methods are currently in development, but the vast majority of existing methods are not tailored to the needs and knowledge of designers in the early stages of the design process. Therefore, we propose a set of process-independent design heuristics for AM aimed at transferring the high-level knowledge necessary for reasoning about functions, configurations, and parts to designers. Twenty-nine design heuristics for AM are derived from 275 AM artifacts. An experiment is designed to test their efficacy in the context of a redesign scenario with novice designers. The heuristics are found to positively influence the designs generated by the novice designers and are found to be more effective at communicating DfAM concepts in the early phases of redesign than a lecture on DfAM alone. Future research is planned to validate the impact with expert designers and in original design scenarios.

Preliminary User Study on Design Heuristics for Additive Manufacturing

2018 ◽  
Author(s):  
Alexandra Blösch-Paidosh ◽  
Kristina Shea
Keyword(s):  
Additive Manufacturing ◽  
User Study ◽  
Future Research ◽  
Original Design ◽  
Design Heuristics ◽  
The Media ◽  
Novice Designers ◽  
Traditional Manufacturing ◽  
The Impact ◽  
Design Scenario

Additive manufacturing (AM) has unique capabilities when compared to traditional manufacturing, such as shape, hierarchical, functional, and material complexity, a fact that has fascinated those in research, industry, and the media for the last decade. Consequently, designers would like to know how they can incorporate AM’s special capabilities into their designs, but are often at a loss as to how to do so. Design for Additive Manufacturing (DfAM) methods are currently in development but the vast majority of existing methods are not tailored to the needs and knowledge of designers in the early stages of the design a process. The authors have previously derived 29 design heuristics for AM. In this paper, the efficacy of these heuristics is tested in the context of a re-design scenario with novice designers. The preliminary results show that the heuristics positively influence the designs generated by the novice designers. Analysis of the use of specific heuristics by the participants and future research to validate the impact of the design heuristics for additive manufacturing with expert designers and in original design scenarios is planned.

scholarly journals Time Granularity Impact on Propagation of Disruptions in a System-of-Systems Simulation of Infrastructure and Business Networks

2021 ◽  
Vol 18 (8) ◽  
pp. 3922
Author(s):  
Mateusz Iwo Dubaniowski ◽  
Hans Rudolf Heinimann
Keyword(s):  
Recovery Time ◽  
System Of Systems ◽  
Future Research ◽  
Business Networks ◽  
Simulation Experiments ◽  
Huge Impact ◽  
High Level ◽  
Systems Simulation ◽  
Different Characteristics ◽  
The Impact

A system-of-systems (SoS) approach is often used for simulating disruptions to business and infrastructure system networks allowing for integration of several models into one simulation. However, the integration is frequently challenging as each system is designed individually with different characteristics, such as time granularity. Understanding the impact of time granularity on propagation of disruptions between businesses and infrastructure systems and finding the appropriate granularity for the SoS simulation remain as major challenges. To tackle these, we explore how time granularity, recovery time, and disruption size affect the propagation of disruptions between constituent systems of an SoS simulation. To address this issue, we developed a high level architecture (HLA) simulation of three networks and performed a series of simulation experiments. Our results revealed that time granularity and especially recovery time have huge impact on propagation of disruptions. Consequently, we developed a model for selecting an appropriate time granularity for an SoS simulation based on expected recovery time. Our simulation experiments show that time granularity should be less than 1.13 of expected recovery time. We identified some areas for future research centered around extending the experimental factors space.

The Impact of the Privacy Rule on Cancer Research: Variations in Attitudes and Application of Regulatory Standards

2009 ◽  
Vol 27 (24) ◽  
pp. 4014-4020 ◽  
Author(s):  
Elizabeth Goss ◽  
Michael P. Link ◽  
Suanna S. Bruinooge ◽  
Theodore S. Lawrence ◽  
Joel E. Tepper ◽  
...  
Keyword(s):  
Cancer Research ◽  
Future Research ◽  
Research Committee ◽  
Data Repositories ◽  
Privacy Rule ◽  
Regulatory Standards ◽  
American Society ◽  
Definition Of ◽  
High Level ◽  
The Impact

Purpose The American Society of Clinical Oncology (ASCO) Cancer Research Committee designed a qualitative research project to assess the attitudes of cancer researchers and compliance officials regarding compliance with the US Privacy Rule and to identify potential strategies for eliminating perceived or real barriers to achieving compliance. Methods A team of three interviewers asked 27 individuals (13 investigators and 14 compliance officials) from 13 institutions to describe the anticipated approach of their institutions to Privacy Rule compliance in three hypothetical research studies. Results The interviews revealed that although researchers and compliance officials share the view that patients' cancer diagnoses should enjoy a high level of privacy protection, there are significant tensions between the two groups related to the proper standards for compliance necessary to protect patients. The disagreements are seen most clearly with regard to the appropriate definition of a “future research use” of protected health information in biospecimen and data repositories and the standards for a waiver of authorization for disclosure and use of such data. Conclusion ASCO believes that disagreements related to compliance and the resulting delays in certain projects and abandonment of others might be eased by additional institutional training programs and consultation on Privacy Rule issues during study design. ASCO also proposes the development of best practices documents to guide 1) creation of data repositories, 2) disclosure and use of data from such repositories, and 3) the design of survivorship and genetics studies.

scholarly journals Television and Fertility

2010 ◽  
pp. 67-82 ◽  
Author(s):  
Stuart Basten
Keyword(s):  
Public Health ◽  
Mass Media ◽  
Low Fertility ◽  
Future Research ◽  
Media Presentation ◽  
Sliding Scale ◽  
The Media ◽  
Television Plays ◽  
The Impact

Much research has been conducted in the field of utilising the media - television and radio in particular - to promote particular public health messages. However, a burgeoning canon has examined how mass media can play a role in affecting change in fertility preferences and outcomes. In this paper we review these researches which have primarily focussed upon higher fertility settings. The impact of mass media presentation of families and children in low fertility settings has not yet been subject to rigorous sociological investigation so its impact can not be accurately inferred. However, given the pervasive nature of mass media and celebrity culture, we suggest that this is an important avenue for future research. We conclude that television plays a multi-faceted role in shaping individuals decision-making procedures concerning both demographic events and public health interactions. To illustrate this, we present a model which demonstrates a sliding scale of intent - but not impact - of various genres in order to understand the actual role of the media in shaping attitudes towards family size - either explicitly in terms of edutainment or implicitly as a forms of normalization.

Impact of web banner advertising frequency on attitude

2018 ◽  
Vol 30 (2) ◽  
pp. 380-399 ◽  
Author(s):  
Rahim Hussain ◽  
Ahmed Shahriar Ferdous ◽  
Gillian Sullivan Mort
Keyword(s):  
Online Advertising ◽  
Repetition Effect ◽  
Brand Attitude ◽  
Moderating Effect ◽  
Future Research ◽  
Content Type ◽  
Banner Advertisements ◽  
Banner Advertisement ◽  
High Level ◽  
The Impact

Purpose The purpose of this paper is to examine whether advertising type (static or dynamic) and appeal (emotional or rational) moderate the relationship between web banner advertising frequency and consumer attitudinal response. Design/methodology/approach A laboratory experiment involving 400 participants was conducted to test for the moderating effect. Factorial ANOVA is used to measure brand attitude. Findings The results identified that the web banner advertisement type acted as a moderator between frequency and brand attitude. However, the moderating effect of banner advertisement appeal was found to be insignificant at a single banner advertisement frequency (i.e. exposure) but significantly different at a higher frequency. The study findings provide better directives for online marketers. Practical implications The major limitation is the fact that the impact of banner advertisement frequency was manipulated from one to five exposures. Future research needs to determine what happens after the fifth exposure, perhaps ten exposures or more, to determine the wear-out effect and in turn, to decide on the optimal frequency level in an effort to design more appropriate web communication strategies. Social implications The result shows that pop-up banner advertisements are intrusive, and that high level of exposures to pop-up banner advertisement could annoy online users. Thus, online advertisers should avoid repeating the pop-up banner advertisements because this could adversely affect the attitude towards the online advertising in general, and could also negatively influence attitudes towards the brand and ultimately effect online purchase. Originality/value This study contributes to the theory by providing more insights into the repetition effect, and comprehensive conclusions can be drawn based on the manipulation of banner advertisement frequency on different frequency levels. The research identifies that if the communication objective is to generate brand attitude, different strategies can be adopted depending on the banner advertisement type (pop-up vs static) and banner advertisement appeal (emotional vs rational).

Knowledge Sharing From Employee's Perspective

2019 ◽  
pp. 1-20 ◽  
Author(s):  
Jianping Peng ◽  
Jing ("Jim") Quan ◽  
Guoying Zhang ◽  
Alan J. Dubinsky
Keyword(s):  
Social Network ◽  
Knowledge Sharing ◽  
Social Relationship ◽  
Contextual Performance ◽  
Survey Study ◽  
Interpersonal Interaction ◽  
Future Research ◽  
Professional Employees ◽  
High Level ◽  
The Impact

This chapter combines three less-studied factors on employee knowledge sharing, namely, social relationship, contextual performance, and IT competence. Using a survey study that was targeted to professional employees in a R&D department, we reveal that both social relationship—which incorporates degree of centrality of employee's social network and frequency of interpersonal interaction—and employee's contextual performance have significant positive impacts on knowledge sharing. This association, however, is found to be further positively moderated by employee's IT competence. Our work extends the literature pertaining to knowledge sharing by, not only providing an enhanced approach to measure social relationship, but also emphasizing that social relationship or contextual performance can magnify the impact on knowledge sharing through a high level of IT competence. The findings provide managerial and future research insights pertaining to promoting knowledge sharing by enhancing social relationship, rewarding contextual performance, and improving IT competence of employees.

Collecting

2019 ◽  
pp. 141-180
Author(s):  
Renee Hobbs ◽  
Liz Deslauriers ◽  
Pam Steager
Keyword(s):  
Academic Libraries ◽  
Landscape Changes ◽  
Independent Films ◽  
The People ◽  
The Media ◽  
High Level ◽  
Online Streaming ◽  
Library Websites ◽  
The Impact ◽  
Film And Video

Librarians and archivists have long understood the professional practice of curation, which includes the practices of collecting, cataloguing, arranging, and assembling for exhibition and display. One of the most important things that libraries do involves developing collections that meet the needs of the people they serve. Professional curation requires a high level of metacognition, because in making selections of what to include and what to omit, a keen awareness of one’s own bias is needed. Public and academic libraries often collect a mix of Hollywood, global, and independent films. But today’s librarians can’t just be good collectors. They must also help learners and patrons develop the curation skills needed to select media for themselves. Effective curation depends on access to reviews and reviewers, and viewers themselves can be empowered to read and provide reviews. Media ratings systems can be both helpful and controversial. Online streaming has changed the way many people use film and video in the home, but there seems to be no established norms for how users access film and media content via library websites. Despite challenges involved in media curation and lingering questions about the impact of streaming collections, librarians can create media collections and services that meet their patrons needs even as the media landscape changes around them.

scholarly journals Communication, Negotiation, and Influence at International Climate Change Meetings and Summits

2017 ◽  
Author(s):  
Hartmut Wessler ◽  
Julia Lück ◽  
Antal Wozniak
Keyword(s):  
Climate Change ◽  
Civil Society ◽  
Media Coverage ◽  
Clean Energy ◽  
Future Research ◽  
Production Environment ◽  
Intergovernmental Panel ◽  
The World ◽  
The Media ◽  
The Impact

The annual United Nations Climate Change Conferences, officially called Conferences of the Parties (COPs), are the main drivers of media attention to climate change around the world. Even more so than the Rio and Rio+20 “Earth Summits” (1992 and 2012) and the meetings of the Intergovernmental Panel on Climate Change (IPCC), the COPs offer multiple access points for the communicative engagement of all kinds of stakeholders. COPs convene up to 20,000 people in one place for two weeks, including national delegations, civil society and business representatives, scientific organizations, representatives from other international organizations, as well as journalists from around the world. While intergovernmental negotiation under the auspices of the UN Framework Convention on Climate Change (UNFCCC) constitutes the core of COP business, these multifunctional events also offer arenas for civil society mobilization, economic lobbying, as well as expert communication and knowledge transfer. The media image of the COPs emerges as a product of distinct networks of coproduction constituted by journalists, professional communicators from non-governmental organizations (NGOs), and national delegations. Production structures at the COPs are relatively globalized with uniform access rules for journalists from all over the world, a few transnational news agencies dominating distribution of both basic information and news visuals, and dense localized interaction between public relations (PR) professionals and journalists. Photo opportunities created by globally coordinated environmental NGOs meet the selection of journalists much better than the visual strategies pursued by delegation spokespeople. This gives NGOs the upper hand in the visual framing contest, whereas in textual framing NGOs are sidelined and national politicians clearly dominate media coverage. The globalized production environment leads to relatively similar patterns of basic news framing in national media coverage of the COPs that reflect overarching ways of approaching the topic: through a focus on problems and victims; a perspective on civil society demands and solutions; an emphasis on conflict in negotiations; or a focus on the benefits of clean energy production. News narratives, on the other hand, give journalists from different countries more leeway in adapting COP news to national audiences’ presumed interests and preoccupations. Even after the adoption of a new global treaty at COP21 in Paris in 2015 that specifies emission reduction targets for all participating countries, the annual UN Climate Change Conferences are likely to remain in the media spotlight. Future research could look more systematically at the impact of global civil society and media in monitoring the national contributions to climate change mitigation introduced in the Paris Agreement and shoring up even more ambitious commitments needed to reach the goal of keeping global warming well below 2 degrees Celsius as compared to pre-industrial levels.

scholarly journals Situating Second-Year Success: Understanding Second-Year STEM Experiences at a Liberal Arts College

2016 ◽  
Vol 15 (3) ◽  
pp. ar43 ◽  
Author(s):  
Leslie Gregg-Jolly ◽  
Jim Swartz ◽  
Ellen Iverson ◽  
Joyce Stern ◽  
Narren Brown ◽  
...  
Keyword(s):  
Liberal Arts ◽  
Student Attitudes ◽  
Future Research ◽  
Success Rates ◽  
Science Courses ◽  
Perceptions And Attitudes ◽  
Second Year ◽  
And Mathematics ◽  
High Level ◽  
The Impact

Challenges particular to second-year students have been identified that can impact persistence in science, technology, engineering, and mathematics (STEM) fields. We implemented a program to improve student success in intermediate-level science courses by helping students to feel they belonged and could succeed in STEM. We used survey measures of perceptions and attitudes and then qualitative measures to characterize the impact of support strategies, including peer mentoring, a second-year science student retreat, learning and advising support resources, and department-specific activities. Analysis of registration and transcript information revealed underperformance by students of color (SOC) and first-generation (FG) students in 200-level science courses. Comparison of these data before and during programming revealed significant improvement in success rates of these students in 200-level biology and chemistry courses, but success rates of SOC and FG students remain lower than the overall rate for 200-level science courses. Contemporaneous with the program, qualitative and quantitative measures of student attitudes revealed a high level of belongingness and support. The results suggest that a focus on students’ metacognition about their own abilities and strategic knowledge of how to succeed may be a fruitful direction for future research.

scholarly journals Integration of Simulation Driven DfAM and LCC Analysis for Decision Making in L-PBF

Metals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1179
Author(s):  
Patricia Nyamekye ◽  
Anna Unt ◽  
Antti Salminen ◽  
Heidi Piili
Keyword(s):  
Decision Making ◽  
Life Cycle ◽  
Additive Manufacturing ◽  
Life Cycle Cost ◽  
Practical Case ◽  
Layer By Layer ◽  
Powder Bed ◽  
Traditional Manufacturing ◽  
Application Fields ◽  
The Impact

Laser based powder bed fusion (L-PBF) is used to manufacture parts layer by layer with the energy of laser beam. The use of L-PBF for building functional parts originates from the design freedom, flexibility, customizability, and energy efficiency of products applied in dynamic application fields such as aerospace and automotive. There are challenges and drawbacks that need to be defined and overcome before its adaptation next to rivaling traditional manufacturing methods. Factors such as high cost of L-PBF machines, metal powder, post-preprocessing, and low productivity may deter its acceptance as a mainstream manufacturing technique. Understanding the key cost drivers of L-PBF that influence productivity throughout the whole lifespan of products will facilitate the decision-making process. Functional and operational decisions can yield profitability and increase competitiveness among advanced manufacturing sectors. Identifying the relationships between the phases of the life cycle of products influences cost-effectiveness. The aim of the study is to investigate the life cycle cost (LCC) and the impact of design to it in additive manufacturing (AM) with L-PBF. The article provides a review of simulation driven design for additive manufacturing (simulation driven DfAM) and LCC for metallic L-PBF processes and examines the state of the art to outline the merits, demerits, design rules, and life cycle models of L-PBF. Practical case studies of L-PBF are discussed and analysis of the interrelating factors of the different life phases are presented. This study shows that simulation driven DfAM in the design phase increases the productivity throughout the whole production and life span of L-PBF parts. The LCC model covers the whole holistic lifecycle engineering of products and offers guidelines for decision making.

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