scholarly journals FiberEUse: Large-Scale Demonstration of New Circular Economy Value Chains Based on the Reuse of End-of-Life Fiber-Reinforced Composites—A Circular It Platform to Manage Innovative Design and Circular Entities

Proceedings ◽  
2021 ◽  
Vol 65 (1) ◽  
pp. 23
Author(s):  
Dena Arabsolgar ◽  
Andrea Musumeci

The new Circular Economy System requires an innovative approach to the management of information. The FiberEUse IT platform is a solution that enables the exchange of information among stakeholders that works into and across the glass and carbon fibers value chains, from the design to the end of the circle of life. The IT solution supports companies in scouting new potential market applications and search information about companies, manufacturing processes, and objects. Those objects had been defined “circular entities” and can be products, materials, semi-manufactured objects, wastes, among others. The information available for each circular entity is the one which the company itself wants to share and can propose: description, informative details, technical details, processes adopted to create it, consultancy services used, etc. To obtain this necessary variety, the data model had been structured in a polymorphic way; being able to serve different product histories without the ambition to create a common and classic entity relationship schema but thinking by high level object-oriented design.

2001 ◽  
Vol 02 (03) ◽  
pp. 269-282
Author(s):  
JIANNONG CAO ◽  
NICK K. C. CHEUNG ◽  
ALVIN CHAN

The monitor concept has been widely used in a concurrent programming environment for implicitly ensuring mutual exclusion and explicitly achieving process synchronization. It has also been extended to support high-level distributed programming. In this paper, we present JDM, a distributed monitor construct in Java for programming large-scale distributed systems. The distributed monitor construct is based on a well-know tree-based distributed mutual exclusion algorithm proposed by K. Raymond. To increase scalability of the construct, a two-level system architecture is developed, where the node level controls the access to the system-wide shared resources using Raymond's algorithm and the process level synchronizes local processes based on the local monitor concept. An object-oriented design of the system architecture is presented. Implementation and results of performance evaluation are reported and factors that influence the performance of the construct are discussed.


2020 ◽  
Author(s):  
Weigang Zhao ◽  
Weiwei He ◽  
Qiang Zhang ◽  
Jinliang Yang ◽  
Weimin Wu ◽  
...  

Abstract Background: Although chest wall stabilization (CWS) has been widely performed for rib fractures in the past decade in China, consensus about operative indication, timing, and technical details for CWS is not formulated yet. The aim of this study is to investigate the existing situation of surgical treatment for rib fractures in China. Methods: Four hundred and fourteen questionnaires were sent out to surgeons in different hospitals in China and collected between January 2018 and April 2018. Data were reviewed and extracted for analysis.Results: Three-hundred and seventy-one valid questionnaires were included in this study. About 14500 cases of CWS for rib fracture were performed in the investigated hospitals in 2016 and about 17600 cases in 2017. There were 38.3% hospitals performed chest wall stabilization for single rib fracture and 44.9% hospitals performed chest wall stabilization for two rib fractures. About 92.1% of CWS cases were performed within two weeks while 42.2% surgeons performed CWS for patients with rib fracture more than two weeks. CWS of was performed in 95.6% of hospitals and 93.2% cases were performed by thoracic surgeons. Nickel-titanium memory alloy and pure titanium rib embracing device are mostly used in rib fixation. Only 33.93% of surgeons chose to remove internal fixator at one year after surgery.Conclusions: Although CWS has been widely performed in China, there are many controversies on the indications, timing, and technical details of CWS. Large-scale clinical trial, high-level literature, uniform standards of surgical indications are critical for the healthy development of CWS.


Author(s):  
L. F. Nizolenko ◽  
A. G. Bachinsky

Deliberate infecting of large groups of people with particularly dangerous infectious diseases agents as a result of bioterrorist attacks is still considered as an actual risk factor. Scenarios of development and aftermaths of smallpox epidemic in a large city are compared using mathematical model developed in SRC VB “Vector”. These scenarios provide that different number of people have become infected with smallpox and capacities of isolation wards with high level of protection vary. The results of the modeling suggest that lack of the one, even very important resource, can be partially compensated by implementing other counter-epidemic measures (large-scale vaccination, detection of the contacts and their monitoring). Thus when planning counter-epidemic measures one must take into consideration the resource limitations as a whole.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Qing Yang ◽  
Xinshang You ◽  
Yiye Zhang

AbstractWith the increasing number of overseas talent tasks in China, overseas talent and job fit are significant issues that aim to improve the utilization of this key human resource. Many studies based on fuzzy sets have been conducted on this topic. Among the many fuzzy set methods, intuitionistic fuzzy sets are usually utilized to express and handle the evaluation information. In recent years, various intuitionistic fuzzy decision-making methods have been rapidly developed and used to solve evaluation problems, but none of them can be used to solve the person-job fit problem with intuitionistic best-worst method (BWM) and TOPSIS methods considering large-scale group decision making (LSGDM) and evaluator social network relations (SNRs). Therefore, to solve problems of intuitionistic fuzzy information analysis and the LSGDM for high-level overseas talent and job fit, we construct a new hybrid two-sided matching method named I-BTM and an LSGDM method considering SNRs. On the one hand, to express the decision-making information more objectively and reasonably, we combine the BWM and TOPSIS in an intuitionistic environment. Additionally, we develop the LSGDM with optimized computer algorithms, where the evaluators’ attitudes are expressed by hesitant fuzzy language. Finally, we build a model of high-level overseas talent and job fit and establish a mutual criteria system that is applied to a case study to illustrate the efficiency and reasonableness of the model.


Author(s):  
Georgi Derluguian

The author develops ideas about the origin of social inequality during the evolution of human societies and reflects on the possibilities of its overcoming. What makes human beings different from other primates is a high level of egalitarianism and altruism, which contributed to more successful adaptability of human collectives at early stages of the development of society. The transition to agriculture, coupled with substantially increasing population density, was marked by the emergence and institutionalisation of social inequality based on the inequality of tangible assets and symbolic wealth. Then, new institutions of warfare came into existence, and they were aimed at conquering and enslaving the neighbours engaged in productive labour. While exercising control over nature, people also established and strengthened their power over other people. Chiefdom as a new type of polity came into being. Elementary forms of power (political, economic and ideological) served as a basis for the formation of early states. The societies in those states were characterised by social inequality and cruelties, including slavery, mass violence and numerous victims. Nowadays, the old elementary forms of power that are inherent in personalistic chiefdom are still functioning along with modern institutions of public and private bureaucracy. This constitutes the key contradiction of our time, which is the juxtaposition of individual despotic power and public infrastructural one. However, society is evolving towards an ever more efficient combination of social initiatives with the sustainability and viability of large-scale organisations.


Author(s):  
Olga V. Khavanova ◽  

The second half of the eighteenth century in the lands under the sceptre of the House of Austria was a period of development of a language policy addressing the ethno-linguistic diversity of the monarchy’s subjects. On the one hand, the sphere of use of the German language was becoming wider, embracing more and more segments of administration, education, and culture. On the other hand, the authorities were perfectly aware of the fact that communication in the languages and vernaculars of the nationalities living in the Austrian Monarchy was one of the principal instruments of spreading decrees and announcements from the central and local authorities to the less-educated strata of the population. Consequently, a large-scale reform of primary education was launched, aimed at making the whole population literate, regardless of social status, nationality (mother tongue), or confession. In parallel with the centrally coordinated state policy of education and language-use, subjects-both language experts and amateur polyglots-joined the process of writing grammar books, which were intended to ease communication between the different nationalities of the Habsburg lands. This article considers some examples of such editions with primary attention given to the correlation between private initiative and governmental policies, mechanisms of verifying the textbooks to be published, their content, and their potential readers. This paper demonstrates that for grammar-book authors, it was very important to be integrated into the patronage networks at the court and in administrative bodies and stresses that the Vienna court controlled the process of selection and financing of grammar books to be published depending on their quality and ability to satisfy the aims and goals of state policy.


2019 ◽  
Author(s):  
Robert C. Hockett

This white paper lays out the guiding vision behind the Green New Deal Resolution proposed to the U.S. Congress by Representative Alexandria Ocasio-Cortez and Senator Bill Markey in February of 2019. It explains the senses in which the Green New Deal is 'green' on the one hand, and a new 'New Deal' on the other hand. It also 'makes the case' for a shamelessly ambitious, not a low-ball or slow-walked, Green New Deal agenda. At the core of the paper's argument lies the observation that only a true national mobilization on the scale of those associated with the original New Deal and the Second World War will be up to the task of comprehensively revitalizing the nation's economy, justly growing our middle class, and expeditiously achieving carbon-neutrality within the twelve-year time-frame that climate science tells us we have before reaching an environmental 'tipping point.' But this is actually good news, the paper argues. For, paradoxically, an ambitious Green New Deal also will be the most 'affordable' Green New Deal, in virtue of the enormous productivity, widespread prosperity, and attendant public revenue benefits that large-scale public investment will bring. In effect, the Green New Deal will amount to that very transformative stimulus which the nation has awaited since the crash of 2008 and its debt-deflationary sequel.


2000 ◽  
Vol 41 (4-5) ◽  
pp. 253-260 ◽  
Author(s):  
P. Buffière ◽  
R. Moletta

An anaerobic inverse turbulent bed, in which the biogas only ensures fluidisation of floating carrier particles, was investigated for carbon removal kinetics and for biofilm growth and detachment. The range of operation of the reactor was kept within 5 and 30 kgCOD· m−3· d−1, with Hydraulic Retention Times between 0.28 and 1 day. The carbon removal efficiency remained between 70 and 85%. Biofilm size were rather low (between 5 and 30 μm) while biofilm density reached very high values (over 80 kgVS· m−3). The biofilm size and density varied with increasing carbon removal rates with opposite trends; as biofilm size increases, its density decreases. On the one hand, biomass activity within the reactor was kept at a high level, (between 0.23 and 0.75 kgTOC· kgVS· d−1, i.e. between 0.6 and 1.85 kgCOD·kgVS · d−1).This result indicates that high turbulence and shear may favour growth of thin, dense and active biofilms. It is thus an interesting tool for biomass control. On the other hand, volatile solid detachment increases quasi linearly with carbon removal rate and the total amount of solid in the reactor levels off at high OLR. This means that detachment could be a limit of the process at higher organic loading rates.


Author(s):  
D. Hugh Whittaker ◽  
Timothy Sturgeon ◽  
Toshie Okita ◽  
Tianbiao Zhu

This book highlights the importance of time and timing in economic and social development. ‘Compressed development’ consists of two key features and their interaction: the tendency for development processes to unfold more rapidly (compression) and the institution-shaping influences of major periods of change and growth, especially when countries become integrated into the global economy (era). Using an interdisciplinary conceptual framework of state–market and organization–technology co-evolution, the authors contrast the experiences of ‘early’ and ‘late’ developers such as the United Kingdom and Japan, with countries–most notably China–which have become more deeply integrated with the global economy since the 1990s. Compressed developers experience ‘thin industrialization’, layered types of employment, and ‘double burdens’ or challenges in social development. National development strategies must accommodate global value chains and powerful international actors on the one hand, and decentralization on the other. To cope, and thrive, states must remain developmental, whilst being increasingly engaged and adaptive in multiple levels of governance. Compressed Development explores the historical and contemporary features of economic and social development at the intersection of development studies and studies of globalization. By bringing a new perspective on the ‘middle-income trap’, as well as the emerging digital economy, and the state–market and geopolitical tensions that are currently upending conventional wisdoms, the book offers timely insights that will be useful, not only for students of development, but for policymakers, business, and labour organization seeking to navigate the rushing currents of contemporary capitalism.


Author(s):  
Jochen von Bernstorff

The chapter explores the notion of “community interests” with regard to the global “land-grab” phenomenon. Over the last decade, a dramatic increase of foreign investment in agricultural land could be observed. Bilateral investment treaties protect around 75 per cent of these large-scale land acquisitions, many of which came with associated social problems, such as displaced local populations and negative consequences for food security in Third World countries receiving these large-scale foreign investments. Hence, two potentially conflicting areas of international law are relevant in this context: Economic, social, and cultural rights and the principles of permanent sovereignty over natural resources and “food sovereignty” challenging large-scale investments on the one hand, and specific norms of international economic law stabilizing them on the other. The contribution discusses the usefulness of the concept of “community interests” in cases where the two colliding sets of norms are both considered to protect such interests.


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