Systematic Review of Powder Metallurgy: Current Overview of Manufactured Materials and Challenges for Future Research

2020 ◽  
Vol 1015 ◽  
pp. 36-42
Author(s):  
Cesar Humberto Ortega-Jimenez ◽  
Giovany David Luque Andino ◽  
Walter Alfonso Amador Segura ◽  
Gerardo Efraín Villalobos Andino ◽  
Carlos Eduardo Díaz Pavón ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
New Technologies ◽  
Materials Science ◽  
Current Trend ◽  
Sand Casting ◽  
Future Research ◽  
Systematic Research ◽  
Holistic Understanding ◽  
Challenges And Opportunities ◽  
Powder Metallurgy Methods

The journey toward foundry and the increasing implementation of Powder Metallurgy are evoking replacing traditional Sand Casting, thus, creating new challenges and opportunities. To take advantage of these opportunities and deal with the challenges, we must gain a holistic understanding of the emerging technical interactions and apply new approaches and methods when introducing new technologies and designing Powder Metallurgy. In this paper, we present the findings of a systematic literature review, consisting of quantitative and qualitative data, focusing on investigating Powder Metallurgy, as an alternative to traditional Sand Casting, by comparing certain characteristics of either process to synthesize the existing information of each method and to present an overview of manufactured materials. Although results indicate an increasing current trend in research publications, showing Powder Metallurgy with many advantages over traditional casting, the latter continues to be implemented as the preferred option in industries with low-level casting production. Given that the studies indicate greater advances in Powder Metallurgy methods over traditional casting, we identified the need for more research on the former under different contexts and therefore recommend it as an approach for future studies of metal casting. This review both reorganizes the available knowledge on Powder Metallurgy, as well as it makes an important methodological contribution by applying a review in Materials science, where there is little to no systematic research, which often means failure to provide sufficient help to implement Powder Metallurgy. Based on these findings, we point to future research needs, highlighting the need for further empirical evidence and improved collaboration between the topics of Mechanical Engineering, Manufacturing Processes, and Materials science, as well as with practitioners.

Factors Affecting Customer Switching Behavior towards Hybrid Electrical Vehicles (HEV’s) from a Customer Perspective in Jordan

2018 ◽  
Vol 1 (3) ◽  
pp. 53
Author(s):  
Bushra Mahadin
Keyword(s):  
Decision Making ◽  
Consumer Behaviour ◽  
New Technologies ◽  
International Marketing ◽  
Current Trend ◽  
Switching Behavior ◽  
Future Research ◽  
Decision Making Process ◽  
Customer Switching ◽  
Electrical Vehicles

Purpose-This paper aims to investigate factors that affect customer switching from Internal Combustion Engine Vehicles (ICEV’s) to Hybrid Electrical Vehicles (HEV’s), in Jordan for the period of (2010-2014).Design/methodology/approach-A self-administered survey was hand-delivered to the targeted sample of car users in Jordan. The authors delivered 400 questionnaires to customers, from which 333 were deemed valid for the analysis, corresponding to the percentage of (83.25%) which indicates the validity of the study. Findings- There was no difference in switching behavior between (ICEV’s) and (HEV’s) based on gender in the Jordanian market. Fuel consumption efficiency was the number one variable that supports the switching behavior towards (HEV's), followed by Eco friendliness, lower taxes and technological features. Price and the current trend in the market were the least supporting factors. In addition to that the perception of the battery life of (HEV's), limited choices in the market, lack of information and fear of the relatively new technology were the major hindering factors of choosing an (HEV).Research limitations-Future research needs to investigate other factors that may affect customers’ behavior such as perceived image, trust, and subjective norms. Future research should investigate into the importance of environmental awareness and new technologies, and gender differences in behavior. From an international marketing standpoint, comparative studies between Jordanian and non-Jordanian customers are potential areas of future research for international marketing strategies and cross-cultural consumer behaviour analysis. Practical implications-The paper identifies the determinants of switching behavior. marketers should focus addressing customers concerns in terms of providing enough information and building awareness towards the technology and it's benefits towards the society and the environment.Originality/value-Our study is one of the few in Jordan that investigates the switching behavior towards vehicles technology. Our study is thought to have made a modest contribution to consumer behaviour literature and, specifically, for decision making process. It offers marketers insights into the determinants of switching behavior towards the hybrid vechicle technology and how this contribute to consumers’ decision making process and attitudes to achieve the intended behavioural outcomes

scholarly journals Power Generation with Biomass from Coffee: A Literature Review, Current Trend and Scope for Future Research

2019 ◽  
Vol 293 ◽  
pp. 05002
Author(s):  
Josepth A. Rivera ◽  
Cesar H Ortega-Jimenez
Keyword(s):  
Power Generation ◽  
Literature Review ◽  
Solid Waste ◽  
Power Plants ◽  
New Technologies ◽  
Current Trend ◽  
Future Research ◽  
Coffee Pulp ◽  
Wide Range ◽  
Processing Plants

This paper takes on the current R&D on the use of biomass from coffee for electric power. This comprehensive literature review aims to synthesize, organize and structure on topics related to the use of solid waste, such as coffee pulp and husk for boilers for power plants. Initial available literature shows new technologies being implemented to transform and improve processes to obtain and generate this type of renewable energy. Using a systematic review, such coffee solid waste is presented as a bioenergy alternative to the sustainability of coffee processing plants. The results show the strengths and weaknesses of its use for energy, which may have significant impact on coffee producing countries, as it is one of the most booming industries of the countries from the equatorial tropics. Despite a wide range of applications of such coffee waste, we have identified few studies on the application of pyrolysis from such biomass power generation. This first review of literature on the subject has both practical implications about the current trend of coffee biomass as a means for generating energy, as well as it can be a basis for the scope for future research on the implementation and sustainability in coffee producing regions.

scholarly journals Sharing Economy and Fast Fashion (Sustainability and virtual consumer behavior: A review and research agenda)

2021 ◽  
Author(s):  
Ramon Ruiz Navarro ◽  
Carolina Hintzmann ◽  
August Corrons
Keyword(s):  
Consumer Behavior ◽  
New Technologies ◽  
Social Economic ◽  
Sustainable Consumption ◽  
Sharing Economy ◽  
Environmental Benefits ◽  
Future Research ◽  
Fashion Industry ◽  
Fast Fashion ◽  
Holistic Understanding

<p>The main objective of this work, through a literature review, is to contextualize the importance of fashion consumer behavior towards a more sustainable economy, emphasizing the sharing economy as an alternative to fast fashion through virtual networks, and therefore also highlights the use that consumers make of new technologies (social networks, mobile applications, or collaborative platforms). The specific objectives are none other than showing the need to contribute to the reduction of pollution, damage to the environment and the overconsumption of natural resources (water, energy, or materials) involved in the manufacture of clothing. All this linked to consumer behavior, innovation, electronic commerce, the sharing economy, and the entrepreneurship of the social and solidarity economy. It is for this reason that this work is approached from a perspective that can help to promote the exchange of fashion, examining the antecedents of the intention of consumers to participate in virtual fashion networks.</p> <p>The consolidation of the sharing economy in the fashion industry could offer social, economic, and environmental benefits, so this research also wants to highlight the convenience of identifying and analyzing the different beliefs of people with similar behaviors using this type of virtual fashion networks and platforms, and that, due to the confinement of COVID-19, seems to have increased exponentially.</p> <p>The value that is provided is to establish a common framework for discussion, within which the research has been carried out, since there is still much to analyze about consumer behavior in this context, and therefore the future of research in this area must bring together social, economic, and technological research to provide a more holistic understanding.</p> <p>It is desirable that sustainability and the need for more sustainable consumption are a motivating influence for future research on the sharing economy related to fast fashion and virtual consumer behavior.</p>

scholarly journals Advances in Translational Nanotechnology: Challenges and Opportunities

2020 ◽  
Vol 10 (14) ◽  
pp. 4881
Author(s):  
Shyam S. Mohapatra ◽  
Robert D. Frisina ◽  
Subhra Mohapatra ◽  
Kevin B. Sneed ◽  
Eleni Markoutsa ◽  
...  
Keyword(s):  
Collaborative Research ◽  
New Technologies ◽  
Future Research ◽  
Nanoscale Structures ◽  
Size Dependent ◽  
Scientific Disciplines ◽  
The Us ◽  
Challenges And Opportunities ◽  
International Participation ◽  
Made In

The burgeoning field of nanotechnology aims to create and deploy nanoscale structures, devices, and systems with novel, size-dependent properties and functions. The nanotechnology revolution has sparked radically new technologies and strategies across all scientific disciplines, with nanotechnology now applied to virtually every area of research and development in the US and globally. NanoFlorida was founded to create a forum for scientific exchange, promote networking among nanoscientists, encourage collaborative research efforts across institutions, forge strong industry-academia partnerships in nanoscience, and showcase the contributions of students and trainees in nanotechnology fields. The 2019 NanoFlorida International Conference expanded this vision to emphasize national and international participation, with a focus on advances made in translating nanotechnology. This review highlights notable research in the areas of engineering especially in optics, photonics and plasmonics and electronics; biomedical devices, nano-biotechnology, nanotherapeutics including both experimental nanotherapies and nanovaccines; nano-diagnostics and -theranostics; nano-enabled drug discovery platforms; tissue engineering, bioprinting, and environmental nanotechnology, as well as challenges and directions for future research.

scholarly journals Sharing Economy and Fast Fashion (Sustainability and virtual consumer behavior: A review and research agenda)

2021 ◽  
Author(s):  
Ramon Ruiz Navarro ◽  
Carolina Hintzmann ◽  
August Corrons
Keyword(s):  
Consumer Behavior ◽  
New Technologies ◽  
Social Economic ◽  
Sustainable Consumption ◽  
Sharing Economy ◽  
Environmental Benefits ◽  
Future Research ◽  
Fashion Industry ◽  
Fast Fashion ◽  
Holistic Understanding

<p>The main objective of this work, through a literature review, is to contextualize the importance of fashion consumer behavior towards a more sustainable economy, emphasizing the sharing economy as an alternative to fast fashion through virtual networks, and therefore also highlights the use that consumers make of new technologies (social networks, mobile applications, or collaborative platforms). The specific objectives are none other than showing the need to contribute to the reduction of pollution, damage to the environment and the overconsumption of natural resources (water, energy, or materials) involved in the manufacture of clothing. All this linked to consumer behavior, innovation, electronic commerce, the sharing economy, and the entrepreneurship of the social and solidarity economy. It is for this reason that this work is approached from a perspective that can help to promote the exchange of fashion, examining the antecedents of the intention of consumers to participate in virtual fashion networks.</p> <p>The consolidation of the sharing economy in the fashion industry could offer social, economic, and environmental benefits, so this research also wants to highlight the convenience of identifying and analyzing the different beliefs of people with similar behaviors using this type of virtual fashion networks and platforms, and that, due to the confinement of COVID-19, seems to have increased exponentially.</p> <p>The value that is provided is to establish a common framework for discussion, within which the research has been carried out, since there is still much to analyze about consumer behavior in this context, and therefore the future of research in this area must bring together social, economic, and technological research to provide a more holistic understanding.</p> <p>It is desirable that sustainability and the need for more sustainable consumption are a motivating influence for future research on the sharing economy related to fast fashion and virtual consumer behavior.</p>

scholarly journals Categorizing the Educational Affordances of 3 Dimensional Immersive Digital Environments

10.28945/4056 ◽  
2018 ◽  
Vol 17 ◽  
pp. 083-112
Author(s):  
Christian J Ángel Rueda ◽  
Juan C Valdés Godínes ◽  
Paul D Rudman
Keyword(s):  
Teaching Practice ◽  
New Technologies ◽  
General Purpose ◽  
Ease Of Use ◽  
Emotional Engagement ◽  
Future Research ◽  
Learning Material ◽  
Holistic Understanding ◽  
Digital Environments ◽  
Categorization Scheme

Aim/Purpose: This paper provides a general-purpose categorization scheme for assessing the utility of new and emerging three-dimensional interactive digital environments (3D-IDEs), along with specific pedagogic approaches that are known to work. It argues for the use of 3D-IDEs on the basis of their ludic appeal and ability to provide intrinsic motivation to the learner, and their openness that allows the learner to gain a more holistic understanding of a topic. Background: Researchers have investigated the affordances, benefits, and drawbacks of individual 3D-IDEs, such as virtual worlds, but teachers lack a general-purpose approach to assessing new 3D-IDEs as they appear and applying them to teaching practice. Methodology: The categorization scheme is based on the analysis, reflection, and comprehension of the research on limitations, challenges, and opportunities for teaching in virtual environments by Angel Rueda, Valdes Godines and Guzmán Flores; the scheme is discussed in terms of an experiment to trial virtual genetics labs in Second Life. Contribution: The paper describes a general-purpose approach to applying existing and new 3D virtual spaces to education, shows a worked example of the use of the categories, and describes six approaches to consider in applying these technologies. Findings: 3D-IDEs are categorized in terms of the way in which they interface with the user’s senses and their ability to provide ‘immersion’; two forms of immersion are examined: digital perceptual immersion – the generated sense of reality – and ludic narrative immersion – a less cognitive and more emotional engagement with the learning environment. Recommendations for Practitioners: Six specific forms of pedagogy appropriate for 3D-IDEs are examined and discussed, in terms of the affordances and technology required, as assessed by the categorization scheme. More broadly, the paper argues for a change in the assessment of new digital technologies from the technology’s features to its affordances and the pedagogies it can support. Recommendation for Researchers: The paper offers a practical approach to choosing and using 3D-IDEs for education, based upon previous work. The next step is to trial the scheme with teachers to ascertain its ease of use and effectiveness. Impact on Society: The paper argues strongly for a new approach to teaching, where the learner is encouraged to use 3D-IDEs in a ludic manner in order to generate internal motivation to learn, and to explore the topic according to their individual learning needs in addition to the teacher’s planned route through the learning material. Future Research: The categorization scheme is intended to be applied to new technologies as they are introduced. Future research is needed to assess its effectiveness and if necessary update the scheme.

Challenges and Opportunities for Neuroimaging in Young Patients with Traumatic Brain Injury: a Coordinated Effort towards Advancing Discovery from the ENIGMA Pediatric Moderate/Severe TBI Group

2019 ◽  
Author(s):  
Emily L. Dennis ◽  
Karen Caeyenberghs ◽  
Robert F. Asarnow ◽  
Talin Babikian ◽  
Brenda Bartnik-Olson ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Meta Analysis ◽  
Young Patients ◽  
Future Research ◽  
Childhood And Adolescence ◽  
Developmental Issues ◽  
Challenges And Opportunities ◽  
Severe Tbi ◽  
Advance Research

Traumatic brain injury (TBI) is a major cause of death and disability in children in both developed and developing nations. Children and adolescents suffer from TBI at a higher rate than the general population; however, research in this population lags behind research in adults. This may be due, in part, to the smaller number of investigators engaged in research with this population and may also be related to changes in safety laws and clinical practice that have altered length of hospital stays, treatment, and access to this population. Specific developmental issues also warrant attention in studies of children, and the ever-changing context of childhood and adolescence may require larger sample sizes than are commonly available to adequately address remaining questions related to TBI. The ENIGMA (Enhancing NeuroImaging Genetics through Meta-Analysis) Pediatric Moderate-Severe TBI (msTBI) group aims to advance research in this area through global collaborative meta-analysis. In this paper we discuss important challenges in pediatric TBI research and opportunities that we believe the ENIGMA Pediatric msTBI group can provide to address them. We conclude with recommendations for future research in this field of study.

The Impact of Emerging Technologies on the Law of Armed Conflict

2019 ◽  
Keyword(s):  
Armed Conflict ◽  
New Technologies ◽  
Emerging Technologies ◽  
Legal Issues ◽  
Technological Advancement ◽  
Law Of Armed Conflict ◽  
Legal Challenges ◽  
Challenges And Opportunities ◽  
The Law ◽  
The Impact

Emerging technologies have always played an important role in armed conflict. From the crossbow to cyber capabilities, technology that could be weaponized to create an advantage over an adversary has inevitably found its way into military arsenals for use in armed conflict. The weaponization of emerging technologies, however, raises challenging legal issues with respect to the law of armed conflict. As States continue to develop and exploit new technologies, how will the law of armed conflict address the use of these technologies on the battlefield? Is existing law sufficient to regulate new technologies, such as cyber capabilities, autonomous weapons systems, and artificial intelligence? Have emerging technologies fundamentally altered the way we should understand concepts such as law-of-war precautions and the principle of distinction? How can we ensure compliance and accountability in light of technological advancement? This book explores these critical questions while highlighting the legal challenges—and opportunities—presented by the use of emerging technologies on the battlefield.

A Taxonomy for Psycho-Oncological Intervention Techniques in an Acute Care Hospital in Germany

2021 ◽  
pp. 1-7
Author(s):  
Martina Madl ◽  
Marietta Lieb ◽  
Katharina Schieber ◽  
Tobias Hepp ◽  
Yesim Erim
Keyword(s):  
Acute Care ◽  
Interrater Reliability ◽  
Acute Care Hospital ◽  
Future Research ◽  
Systematic Research ◽  
Care Hospital ◽  
Certification System ◽  
Stepwise Procedure ◽  
Further Development

<b><i>Background:</i></b> Due to the establishment of a nationwide certification system for cancer centers in Germany, the availability of psycho-oncological services for cancer patients has increased substantially. However, little is known about the specific intervention techniques that are applied during sessions in an acute care hospital, since a standardized taxonomy is lacking. With this study, we aimed at the investigation of psycho-oncological intervention techniques and the development of a comprehensive and structured taxonomy thereof. <b><i>Methods:</i></b> In a stepwise procedure, a team of psycho-oncologists generated a data pool of interventions and definitions that were tested in clinical practice during a pilot phase. After an adaptation of intervention techniques, interrater reliability (IRR) was attained by rating 10 previously recorded psycho-oncological sessions. A classification of interventions into superordinate categories was performed, supported by cluster analysis. <b><i>Results:</i></b> Between April and June 2017, 980 psycho-oncological sessions took place. The experts agreed on a total number of 22 intervention techniques. An IRR of 89% for 2 independent psycho-oncological raters was reached. The 22 techniques were classified into 5 superordinate categories. <b><i>Discussion/Conclusion:</i></b> We developed a comprehensive and structured taxonomy of psycho-oncological intervention techniques in an acute care hospital that provides a standardized basis for systematic research and applied care. We expect our work to be continuously subjected to further development: future research should evaluate and expand our taxonomy to other contexts and care settings.

scholarly journals Highly porous, hierarchically structured nickel nanomaterials consolidated by powder metallurgy methods

2021 ◽  
Vol 1942 (1) ◽  
pp. 012019
Author(s):  
A G Gnedovets ◽  
V A Zelensky ◽  
A B Ankudinov ◽  
V S Shustov ◽  
M I Alymov
Keyword(s):  
Powder Metallurgy ◽  
Powder Metallurgy Methods ◽  
Highly Porous
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