scholarly journals Dielectric Surface Flashover under Long-Term Repetitive Microsecond Pulses in Compressed Gas Environment

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3343
Author(s):  
Tianyu Lin ◽  
Yongpeng Zhang ◽  
Zhijian Lu ◽  
Zhengwen Wang ◽  
Peng Wei ◽  
...  
Keyword(s):  
Dielectric Surface ◽  
High Power Microwave ◽  
Surface Flashover ◽  
Dielectric Surfaces ◽  
System A ◽  
Insulation Failure ◽  
Suitable Parameter ◽  
The Relationship ◽  
Insulation Performance

As a key component of a high-power microwave (HPM) system, a multi-gap gas switch (MGS) has recently developed insulation failure due to surface flashover. Although design criteria for surface insulation have been put forward, it is still not clear how the insulation in this case deteriorated under long-term repetitive microsecond pulses (RMPs). In this paper, flashover experiments under RMPs were carried out on various dielectric surfaces between parallel-plane electrodes in SF6 and air atmospheres, respectively. Based on tests of the surface insulation lifetime (SIL), an empirical formula for SIL prediction is proposed with variations of insulator work coefficient λ, which is a more suitable parameter to characterize SIL under RMPs. Due of the accumulation effect, the relationship between E/p and ptdelay varies with the pulse repetitive frequency (PRF) and SIL recovery capability decreases with an increase in PRF and surface deterioration is exacerbated during successive flashovers. It is concluded that the flashover path plays a crucial role in surface insulation performance under RMPs due to the photoemission induced by ultraviolet (UV) radiation, signifying the necessity of reducing surface paths in future designs as well as the improvement of surface insulation.

Dielectric surface flashover at atmospheric conditions under high-power microwave excitation

2007 ◽  
Vol 14 (5) ◽  
pp. 057102 ◽  
Author(s):  
Andreas A. Neuber ◽  
John T. Krile ◽  
Greg F. Edmiston ◽  
Hermann G. Krompholz
Keyword(s):  
High Power ◽  
Dielectric Surface ◽  
Atmospheric Conditions ◽  
High Power Microwave ◽  
Surface Flashover ◽  
Microwave Excitation ◽  
Power Microwave

scholarly journals Conceptual Marketing in the Age of Interactive Consumer

2020 ◽  
Author(s):  
Vladan Kuzmanović
Keyword(s):  
Privileged Position ◽  
Partnership Model ◽  
System A ◽  
A Value ◽  
The Relationship ◽  
Cultural Concept

Marketing is a system, a value, a complex. Marketing is a behavioral, interpersonal, and cultural concept. The value of total marketing is the value of the exchange of signs, labels, recognition, identity, trends, time and comfort. Contextual markets are complexes that are remarketed or resold in different iterative contexts, and under different circumstances. Marketing brings to the market a holistic system, the whole complex not just a part or a process. Conceptual marketing deals with holistic entities. A context product is a marketing entity. The buyer also has the need for market reminiscences. The product complex includes the basic, extended, and external product. The second part of paper debate my new Partnership model. The project is an intermediation because it is the relationship between the equilibrated actors who are in the process of optimizing their positions. However, individuals are actors of a whole personality, one partner has a privileged position but in the long term the equilibrium is sustainable.

scholarly journals Is fighting against COVID-19 enough?

2020 ◽  
pp. 140349482096953
Author(s):  
Walter Kofler ◽  
Oleg S. Glazachev ◽  
Heidi Lyshol ◽  
Gunnar Tellnes
Keyword(s):  
Health Care ◽  
Global Health ◽  
Excess Mortality ◽  
Phase 2 ◽  
Individual Country ◽  
System A ◽  
Special Challenge ◽  
The Impact ◽  
The Relationship

Tools of empirical epidemiology have been and are indispensable to focus political power on blocking the spreading of coronavirus disease 2019 (COVID-19) by stopping transmission. The present paper is a comment on E. Gibney’s article ‘Whose coronavirus strategy worked best?’ ( Nature 2020;581:15–6). The strategy for phase 2 should be more complex and interdisciplinary than described in the paper in Nature, especially in the period before a vaccine and specific treatments are available. The focus on reducing the mortality of COVID-19 will have side effects, including excess mortality from other causes. A part of this excess mortality will be based on the reduction of health-care offers as a consequence of the pandemic, and on structural limitations of the health-care system. A special challenge is to understand the relationship between death from and death with COVID-19, and therefore the relevance of severe acute respiratory syndrome coronavirus 2 infection in people with pre-existing burdens, for example coronary heart disease, cancer or older age. There is a need to extend the recently used tools to all available instruments, including physiological principles of prevention and promotion. The way to integrate global solidarity into the strategies of the different countries is critical not only for global health but also for the peace and long-term success for each individual country. The consequences of efforts against COVID-19 and the impact on reduced air pollution and climate change are also important to analyse from a global health perspective.

How do self-initiated expatriates fit into the Japanese traditional HR system? A call for institutional change to achieve mutual understanding

2020 ◽  
Vol 8 (3/4) ◽  
pp. 291-307
Author(s):  
Chie Yorozu
Keyword(s):  
Point Of View ◽  
Content Type ◽  
Staff Members ◽  
System A ◽  
Japanese Firms ◽  
Expectation Gap ◽  
The Uk ◽  
Management Staff ◽  
The Relationship

PurposeJapan has recently opened its doors to welcome them in order to reduce the labour shortage in the domestic market. Peltokorpi and Froese (2009) indicated that Japan has a challenging workplace and system for foreigners. It is clear that Japanese firms have not really been ready to take on self-initiated expatriates in spite of their rapid acceptance of them. This research, therefore aims to explore how international labourers have worked in Japan and how well they have really been fitted into the unique Japanese work environment, especially its HR system.Design/methodology/approachThis research examined the issues from the both angle of Japanese firms and from the point of view of international labour through interview-based qualitative research method. The author analysed both data gained from 16 Japanese staff members including human resource management staff members of leading Japanese firms and 40 international workers. The data were analysed through ethnographical investigations of the current situation between Japanese firms and international labour. There has still been a lack of studies using interview-based qualitative method as introduced under the literature reviews.FindingsAlthough the issues occurring in the UK and US as regards pay and discrimination from local workers (e.g. Baruch et al., 2013) seem not to be shared by international workers in Japanese firms, other unique issues have arisen under the traditional HR system. There is a gap between Japanese firms' expectations and international labour' expectations; the former expects the latter to stay for the long term, while the latter prefers variety of job experiences in order to quickly develop skills. Under the traditional Japanese HR system, both sides seem to suffer if they work together for long.Originality/valueThe relationship between international labour in Japan and Japanese firms has been examined. Such both angles brought about expectation gap between both sides as mentioned above. While Japanese staff members have enjoyed the benefits of the secure HR system (Dore, 2000), self-initiated expatriates do not necessarily need these benefits.

Multi-Center Calibration of the Second Reference Material for Thromboplastin, Rabbit, Plain, Coded CRM 149R

1991 ◽  
Vol 65 (03) ◽  
pp. 263-267 ◽  
Author(s):  
A M H P van den Besselaar ◽  
R M Bertina
Keyword(s):  
Reference Material ◽  
Standard Error ◽  
Standard Errors ◽  
Sensitivity Index ◽  
Long Term Stability ◽  
Significant Bias ◽  
The Mean ◽  
The Relationship ◽  
International Sensitivity Index

SummaryIn a collaborative trial of eleven laboratories which was performed mainly within the framework of the European Community Bureau of Reference (BCR), a second reference material for thromboplastin, rabbit, plain, was calibrated against its predecessor RBT/79. This second reference material (coded CRM 149R) has a mean International Sensitivity Index (ISI) of 1.343 with a standard error of the mean of 0.035. The standard error of the ISI was determined by combination of the standard errors of the ISI of RBT/79 and the slope of the calibration line in this trial.The BCR reference material for thromboplastin, human, plain (coded BCT/099) was also included in this trial for assessment of the long-term stability of the relationship with RBT/79. The results indicated that this relationship has not changed over a period of 8 years. The interlaboratory variation of the slope of the relationship between CRM 149R and RBT/79 was significantly lower than the variation of the slope of the relationship between BCT/099 and RBT/79. In addition to the manual technique, a semi-automatic coagulometer according to Schnitger & Gross was used to determine prothrombin times with CRM 149R. The mean ISI of CRM 149R was not affected by replacement of the manual technique by this particular coagulometer.Two lyophilized plasmas were included in this trial. The mean slope of relationship between RBT/79 and CRM 149R based on the two lyophilized plasmas was the same as the corresponding slope based on fresh plasmas. Tlowever, the mean slope of relationship between RBT/79 and BCT/099 based on the two lyophilized plasmas was 4.9% higher than the mean slope based on fresh plasmas. Thus, the use of these lyophilized plasmas induced a small but significant bias in the slope of relationship between these thromboplastins of different species.

Risk Attitude and Corporate Investment under Output Market Uncertainty: Evidence from The Mekong River Delta, Vietnam

2016 ◽  
pp. 59-70
Author(s):  
Ninh Le Khuong ◽  
Nghiem Le Tan ◽  
Tho Huynh Huu
Keyword(s):  
Negative Relationship ◽  
Risk Attitude ◽  
Business Strategies ◽  
Risk Averse ◽  
Market Uncertainty ◽  
Firm Investment ◽  
Output Market ◽  
The Impact ◽  
The Relationship

This paper aims to detect the impact of firm managers’ risk attitude on the relationship between the degree of output market uncertainty and firm investment. The findings show that there is a negative relationship between these two aspects for risk-averse managers while there is a positive relationship for risk-loving ones, since they have different utility functions. Based on the findings, this paper proposes recommendations for firm managers to take into account when making investment decisions and long-term business strategies as well.

Financial Folly and Spain’s Black Legend

2017 ◽  
Author(s):  
Mauricio Drelichman ◽  
Hans-Joachim Voth
Keyword(s):  
Seventeenth Century ◽  
Economic History ◽  
Military Power ◽  
Great Flexibility ◽  
Loan Contracts ◽  
Historical Tradition ◽  
Black Legend ◽  
Contractual Obligations ◽  
The Relationship

This epilogue argues that Castile was solvent throughout Philip II's reign. A complex web of contractual obligations designed to ensure repayment governed the relationship between the king and his bankers. The same contracts allowed great flexibility for both the Crown and bankers when liquidity was tight. The risk of potential defaults was not a surprise; their likelihood was priced into the loan contracts. As a consequence, virtually every banking family turned a profit over the long term, while the king benefited from their services to run the largest empire that had yet existed. The epilogue then looks at the economic history version of Spain's Black Legend. The economic history version of the Black Legend emerged from a combination of two narratives: a rich historical tradition analyzing the decline of Spain as an economic and military power from the seventeenth century onward, combined with new institutional analysis highlighting the unconstrained power of the monarch.

QUALITY OF LIFE PROBLEMS OF GYNECOLOGICAL CANCER PATIENTS

2017 ◽  
Vol 63 (3) ◽  
pp. 368-374
Author(s):  
Olga Churuksaeva ◽  
Larisa Kolomiets
Keyword(s):  
Quality Of Life ◽  
Gynecological Cancer ◽  
Social Aspects ◽  
Cancer Data ◽  
Life Problems ◽  
Anticancer Treatment ◽  
Short And Long Term ◽  
The Relationship

Due to improvements in short- and long-term clinical outcomes a study of quality of life is one of the most promising trends in oncology today. This review analyzes the published literature on problems dealing with quality of life of patients with gynecological cancer. Data on quality of life with respect to the extent of anticancer treatment as well as psychological and social aspects are presented. The relationship between quality of life and survival has been estimated.

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