scholarly journals How Can China’s Indium Resources Have a Sustainable Future? Research Based on the Industry Chain Perspective

2021 ◽  
Vol 13 (21) ◽  
pp. 12042
Author(s):  
Jing Lin ◽  
Xin Li ◽  
Minxi Wang ◽  
Litao Liu ◽  
Tao Dai

Global competition and storage for indium resources are increasing. This paper uses substance flow analysis to quantify the flow of indium in China from 2000 to 2019 and discusses the problems facing China’s indium industry chain. Over the past 20 years, China has mined more than 21,000 tons of indium from the lithosphere, and the accumulated indium content in imported ore is about 3600 tons. In the upper reaches of the industrial chain, the loss of indium exceeded 19,000 tons; in the middle reaches, due to technical barriers, China exported a large amount of indium at low prices and imported a large amount of ITO targets at high prices. The amount of indium in the imported targets exceeded 2100 tons; in the downstream, approximately 60% of the final products were exported abroad. China’s cumulative output of recycled indium was about 630 tons, primary indium output was 5912 tons, and the cumulative inventory of indium reached 3200 tons. Therefore, increasing the recovery rate in the primary production stage, overcoming the technical barriers in the middle of the industry chain, and establishing an efficient recovery system are necessary measures to promote the sustainable development of indium resources and its industry chain.

2019 ◽  
Vol 35 (5) ◽  
pp. 1-7
Author(s):  
Matthew Fyfield ◽  
Michael Henderson ◽  
Eva Heinrich ◽  
Petrea Redmond

There has been a noticeable rise in the use of, and research into, educational videos in tertiary education in the past decade. This is due in no small part to the reduction of expensive barriers to their production and storage, and an increase in access to streaming services that make videos playable anywhere, anytime. Research into educational videos broadly falls into three categories: improving video design, investigating platforms and technologies that increase student engagement, and developing pedagogical approaches that take full advantage of the affordances of videos. A review of key findings in this journal – considered in light of the broader literature – reveals productive lines of inquiry for future research. Notably, experimental research using the lens of Cognitive Load Theory has established that videos should be short, uncluttered, and restricted to one clearly identified learning goal. There is also robust evidence to suggest videos should be accompanied by learning activities, rather than watched passively. In addition to the experimental research findings there is a wealth of research through case studies, such as exploring video based pedagogies liked flipped and blended learning. However, there are key opportunities for further research, such as the need for replications of experimental design principles in real learning contexts, and the development of pedagogical approaches that utilise the particular affordances of educational videos.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Krzysztof Celuch

PurposeThis research provides a bibliometric review of the state-of-the-art information and communication technologies (ICTs) in the context of events, and maps out an agenda for future directions on how innovations in the technological realm can help fostering sustainability in the events industry.Design/methodology/approachTo explore the progress of ICTs and future applications in events, this study conducts a two-fold method of a bibliometric analysis and a modularity clustering technique based on 293 papers published in the last 30 years.FindingsThe findings offer a snapshot of the past progress to offer a glimpse into the future by formulating novel areas for research that merit attention. By interweaving the past, present and future towards sustainability, an agenda with four concrete areas for research is identified, including (1) virtual events, (2) the use of artificial intelligence, (3) big data technology, and (4) virtual reality and augmented reality in the events industry.Originality/valueThe current global challenges together with the rapid technological progress can particularly give rise to innovations in the technological sector. Through a bibliometric review of past research, this study offers a future research agenda of ICTs in the events sector in light of the Sustainable Development Goals. It contributes with a discussion on how to harvest the technological progress to create more sustainable events.


2018 ◽  
Vol 9 (1) ◽  
pp. 1-16
Author(s):  
S. Karly Kehoe ◽  
Chris Dalglish

Evidence of how history and culture have been or should be harnessed to promote sustainability in remote and rural communities is mounting. To be sustainable, development must come from within, it must serve future generations as well as those in the present and it must attend to the vitality of culture, society, the economy and the environment. Historical research has an important contribution to make to sustainability, especially if undertaken collaboratively, by challenging and transcending the boundaries between disciplines and between the professional researchers, communities and organisations which serve and work with them. The Sustainable Development Goals’ motto is ‘leaving no one behind’, and for the 17 Goals to be met, there must be a dramatic reshaping of the ways in which we interact with each other and with the environment. Enquiry into the past is a crucial part of enabling communities, in all their shapes and sizes, to develop in sustainable ways. This article considers the rural world and posits that historical enquiry has the potential to deliver insights into the world in which we live in ways that allow us to overcome the negative legacies of the past and to inform the planning of more positive and progressive futures. It draws upon the work undertaken with the Landscapes and Lifescapes project, a large partnership exploring the historic links between the Scottish Highlands and the Caribbean, to demonstrate how better understandings of the character and consequences of previous development might inform future development in ways that seek to tackle injustices and change unsustainable ways of living. What we show is how taking charge of and reinterpreting the past is intrinsic to allowing the truth (or truths) of the present situation to be brought to the surface and understood, and of providing a more solid platform for overcoming persistent injustices.


2012 ◽  
Vol 163 (6) ◽  
pp. 240-246 ◽  
Author(s):  
Thomas A. Nagel ◽  
Jurij Diaci ◽  
Dusan Rozenbergar ◽  
Tihomir Rugani ◽  
Dejan Firm

Old-growth forest reserves in Slovenia: the past, present, and future Slovenia has a small number of old-growth forest remnants, as well as many forest reserves approaching old-growth conditions. In this paper, we describe some of the basic characteristics of these old-growth remnants and the history of their protection in Slovenia. We then trace the long-term development of research in these old-growth remnants, with a focus on methodological changes. We also review some of the recent findings from old-growth research in Slovenia and discuss future research needs. The conceptual understanding of how these forests work has slowly evolved, from thinking of them in terms of stable systems to more dynamic and unpredictable ones due to the influence of natural disturbances and indirect human influences. In accordance with this thinking, the methods used to study old-growth forests have changed from descriptions of stand structure to studies that address natural processes and ecosystem functions.


2020 ◽  
Vol 26 (29) ◽  
pp. 3508-3521 ◽  
Author(s):  
Xiaochen Jia ◽  
Mijanur R. Rajib ◽  
Heng Yin

Background: Application of chitin attracts much attention in the past decades as the second abundant polysaccharides in the world after cellulose. Chitin oligosaccharides (CTOS) and its deacetylated derivative chitosan oligosaccharides (COS) were shown great potentiality in agriculture by enhancing plant resistance to abiotic or biotic stresses, promoting plant growth and yield, improving fruits quality and storage, etc. Those applications have already served huge economic and social benefits for many years. However, the recognition mode and functional mechanism of CTOS and COS on plants have gradually revealed just in recent years. Objective: Recognition pattern and functional mechanism of CTOS and COS in plant together with application status of COS in agricultural production will be well described in this review. By which we wish to promote further development and application of CTOS and COS–related products in the field.


2019 ◽  
Vol 20 (3) ◽  
pp. 251-264 ◽  
Author(s):  
Yinlu Feng ◽  
Zifei Yin ◽  
Daniel Zhang ◽  
Arun Srivastava ◽  
Chen Ling

The success of gene and cell therapy in clinic during the past two decades as well as our expanding ability to manipulate these biomaterials are leading to new therapeutic options for a wide range of inherited and acquired diseases. Combining conventional therapies with this emerging field is a promising strategy to treat those previously-thought untreatable diseases. Traditional Chinese medicine (TCM) has evolved for thousands of years in China and still plays an important role in human health. As part of the active ingredients of TCM, proteins and peptides have attracted long-term enthusiasm of researchers. More recently, they have been utilized in gene and cell therapy, resulting in promising novel strategies to treat both cancer and non-cancer diseases. This manuscript presents a critical review on this field, accompanied with perspectives on the challenges and new directions for future research in this emerging frontier.


Author(s):  
John D. Horner ◽  
Bartosz J. Płachno ◽  
Ulrike Bauer ◽  
Bruno Di Giusto

The ability to attract prey has long been considered a universal trait of carnivorous plants. We review studies from the past 25 years that have investigated the mechanisms by which carnivorous plants attract prey to their traps. Potential attractants include nectar, visual, olfactory, and acoustic cues. Each of these has been well documented to be effective in various species, but prey attraction is not ubiquitous among carnivorous plants. Directions for future research, especially in native habitats in the field, include: the qualitative and quantitative analysis of visual cues, volatiles, and nectar; temporal changes in attractants; synergistic action of combinations of attractants; the cost of attractants; and responses to putative attractants in electroantennograms and insect behavioral tests.


2021 ◽  
Vol 13 (14) ◽  
pp. 7939
Author(s):  
Sohani Vihanga Withanage ◽  
Komal Habib

The unprecedented technological development and economic growth over the past two decades has resulted in streams of rapidly growing electronic waste (e-waste) around the world. As the potential source of secondary raw materials including precious and critical materials, e-waste has recently gained significant attention across the board, ranging from governments and industry, to academia and civil society organizations. This paper aims to provide a comprehensive review of the last decade of e-waste literature followed by an in-depth analysis of the application of material flow analysis (MFA) and life cycle assessment (LCA), i.e., two less commonly used strategic tools to guide the relevant stakeholders in efficient management of e-waste. Through a keyword search on two main online search databases, Scopus and Web of Science, 1835 peer-reviewed publications were selected and subjected to a bibliographic network analysis to identify and visualize major research themes across the selected literature. The selected 1835 studies were classified into ten different categories based on research area, such as environmental and human health impacts, recycling and recovery technologies, associated social aspects, etc. With this selected literature in mind, the review process revealed the two least explored research areas over the past decade: MFA and LCA with 33 and 31 studies, respectively. A further in-depth analysis was conducted for these two areas regarding their application to various systems with numerous scopes and different stages of e-waste life cycle. The study provides a detailed discussion regarding their applicability, and highlights challenges and opportunities for further research.


2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Amin Mohamadi ◽  
Kaveh Momenzadeh ◽  
Aidin Masoudi ◽  
Kempland C. Walley ◽  
Kenny Ierardi ◽  
...  

Abstract Background Knowledge regarding the biomechanics of the meniscus has grown exponentially throughout the last four decades. Numerous studies have helped develop this knowledge, but these studies have varied widely in their approach to analyzing the meniscus. As one of the subcategories of mechanical phenomena Medical Subject Headings (MeSH) terms, mechanical stress was introduced in 1973. This study aims to provide an up-to-date chronological overview and highlights the evolutionary comprehension and understanding of meniscus biomechanics over the past forty years. Methods A literature review was conducted in April 2021 through PubMed. As a result, fifty-seven papers were chosen for this narrative review and divided into categories; Cadaveric, Finite element (FE) modeling, and Kinematic studies. Results Investigations in the 1970s and 1980s focused primarily on cadaveric biomechanics. These studies have generated the fundamental knowledge basis for the emergence of FE model studies in the 1990s. As FE model studies started to show comparable results to the gold standard cadaveric models in the 2000s, the need for understanding changes in tissue stress during various movements triggered the start of cadaveric and FE model studies on kinematics. Conclusion This study focuses on a chronological examination of studies on meniscus biomechanics in order to introduce concepts, theories, methods, and developments achieved over the past 40 years and also to identify the likely direction for future research. The biomechanics of intact meniscus and various types of meniscal tears has been broadly studied. Nevertheless, the biomechanics of meniscal tears, meniscectomy, or repairs in the knee with other concurrent problems such as torn cruciate ligaments or genu-valgum or genu-varum have not been extensively studied.


Author(s):  
Xiaochen Zhang ◽  
Lanxin Hui ◽  
Linchao Wei ◽  
Fuchuan Song ◽  
Fei Hu

Electric power wheelchairs (EPWs) enhance the mobility capability of the elderly and the disabled, while the human-machine interaction (HMI) determines how well the human intention will be precisely delivered and how human-machine system cooperation will be efficiently conducted. A bibliometric quantitative analysis of 1154 publications related to this research field, published between 1998 and 2020, was conducted. We identified the development status, contributors, hot topics, and potential future research directions of this field. We believe that the combination of intelligence and humanization of an EPW HMI system based on human-machine collaboration is an emerging trend in EPW HMI methodology research. Particular attention should be paid to evaluating the applicability and benefits of the EPW HMI methodology for the users, as well as how much it contributes to society. This study offers researchers a comprehensive understanding of EPW HMI studies in the past 22 years and latest trends from the evolutionary footprints and forward-thinking insights regarding future research.


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