An experimental study of the impact flash: The relationship between luminous efficiency and vacuum level

2020 ◽  
Vol 187 ◽  
pp. 104921 ◽  
Author(s):  
Ryota Fuse ◽  
Shinsuke Abe ◽  
Masahisa Yanagisawa ◽  
Sunao Hasegawa
2021 ◽  
pp. 0887302X2110559
Author(s):  
Gargi Bhaduri ◽  
Sojin Jung ◽  
Jung E. Ha-Brookshire

This study focused on understanding how (mis)match between a company's corporate social responsibility claims as indicated in their mission and the activities it actually undertakes to meet its CSR goals leads to consumers’ corporate hypocrisy and how consumers’ CSR-CA beliefs moderate the relationship between the two. Using the Moral Responsibility Theory of Corporate Sustainability as a framework, this research analyzed the difference in corporate hypocrisy between consumers with high versus low CSR-CA tradeoff beliefs. In addition, we examined the impact of consumers’ corporate hypocrisy on their negative word-of-mouth intention and how participants’ injunctive norm impacts the relationship between the two. A sample of 538 adult US consumers were recruited for an online experimental study. The study extends the findings of MCRS and also provides implications for apparel businesses.


2021 ◽  
Vol 64 (1) ◽  
pp. 253-258
Author(s):  
Jun Sian Lee ◽  
Shahab Sokhansanj ◽  
Anthony K. Lau ◽  
Jim Lim

HighlightsA cut-off curve was delineated that specifies the rainfall conditions at which loading of wood pellets must be stopped.The relationship between the amount of water sprayed and the pellet durability and fines content was quantified.Very light rainfall events (less than 0.5 mm h-1) had little impact on the durability of wood pellets.Abstract. On the west coast of Canada, port terminals are frequently exposed to seasonal rainfall events, which can impact the loading operations at the terminals. Wood pellets, one of the bulk materials frequently handled in Canadian ports, are known to disintegrate when exposed to water. However, the extent to which the exposed pellets degrade, in terms of their durability and fines content, is not quantified in the literature. This exploratory research quantifies the impact of liquid water on wood pellets and delineates a cut-off curve specifying the rainfall conditions at which the loading of wood pellets needs to be halted. For example, loading may continue for at least 30 min at rainfall intensities of less than 0.5 mm h-1 before the durability of the wood pellets drops from 99.5% to 96.5%. The results also showed that the durability and fines content of wetted pellets have a strong correlation with the amount of water that the wood pellets are exposed to. Keywords: Durability, Fines, Loading, Moisture content, Rain, Wood pellets.


2020 ◽  
Vol 44 (2) ◽  
pp. 272-278
Author(s):  
Xinyu Pang ◽  
Xuanyi Xue ◽  
Xiaowu Jin

In the rotor system subjected to torque, the lubrication state of the journal bearings will change, which can lead to wear life change of such bearings. Therefore, the experimental study on the wear life prediction of the journal bearings in the rotor system subjected to torque was carried out. An improved Archard model for wear rate prediction was proposed, which can be applied to determine the relationship among speed, torque, and wear of different bearings. The 20 h wear of a single-span rotor system was tested at three speeds and torque. Test results show that the impact of torque on wear is greater than that of speed. The wear life of a bearing can be predicted with determined wear threshold. The 20 h wear was calculated by using the wear data of the rotor test bench in this model and compared with the actual wear. The comparison results indicate that the accuracy is higher than 92%. The torque – wear life curve shows that wear life is logarithmic to torque at a constant speed and significantly affected by changes in the low torque. Given a constant torque, the wear life will decrease logarithmically with the speed increasing.


2011 ◽  
Vol 130-134 ◽  
pp. 1568-1572
Author(s):  
Hui Wang ◽  
Jie Gang Mu ◽  
Miao Yin Su ◽  
Shui Hua Zheng ◽  
Jin Jing Zhao ◽  
...  

The paper studies the relationship between axial force and breadth of back blade by numerical simulation and experiment. On the basis of the RNG k-ε turbulence model and technology of compact local grids and regional computing, three dimensional numerical simulations to 100HZ165-250 centrifugal pump with various breadths were carried out. Through comparing and analyzing of the flow field, it can be seen that the axial force reduces with the increase of the back blade breadth. After that, the simulation results were verified by the experimental data got from different test devices, and it shows that the conclusions are reliable.


1996 ◽  
Vol 60 (2) ◽  
pp. 81-90 ◽  
Author(s):  
Michael K. Hui ◽  
David K. Tse

The authors conduct an experimental study to examine the impact of two types of waiting information—waiting-duration information and queuing information—on consumers’ reactions to waits of different lengths. The authors test a model that includes three different constructs—perceived waiting duration, acceptability of the wait, and affective response to the wait—as mediators between waiting information and service evaluation. Results show that though acceptability of the wait and affective response to the wait have a significant mediating effect on the relationship between waiting information and service evaluation, perceived waiting duration does not. Moreover, neither type of information has significant impact in the short-wait condition, whereas waiting-duration information has greater impact than queuing information in the intermediate-wait condition and a smaller impact in the long-wait condition. The authors conclude with a discussion of research and managerial implications.


2013 ◽  
Vol 357-360 ◽  
pp. 1212-1218 ◽  
Author(s):  
Xi Xi He ◽  
Tao Zhang

Recycled coarse aggregate solid concrete bricks were produced by QTY4-40 brick machine with strength grades of MU15-MU30. Compression and flexural strength of solid recycled coarse aggregate concrete brick were investigated. The impact of recycled aggregate on the solid concrete brick mechanical properties and physical properties was analyzed. The relationship between physical properties and strength, density was discussed.


Author(s):  
Brynne D. Ovalle ◽  
Rahul Chakraborty

This article has two purposes: (a) to examine the relationship between intercultural power relations and the widespread practice of accent discrimination and (b) to underscore the ramifications of accent discrimination both for the individual and for global society as a whole. First, authors review social theory regarding language and group identity construction, and then go on to integrate more current studies linking accent bias to sociocultural variables. Authors discuss three examples of intercultural accent discrimination in order to illustrate how this link manifests itself in the broader context of international relations (i.e., how accent discrimination is generated in situations of unequal power) and, using a review of current research, assess the consequences of accent discrimination for the individual. Finally, the article highlights the impact that linguistic discrimination is having on linguistic diversity globally, partially using data from the United Nations Educational, Scientific and Cultural Organization (UNESCO) and partially by offering a potential context for interpreting the emergence of practices that seek to reduce or modify speaker accents.


2010 ◽  
Vol 20 (1) ◽  
pp. 3-8
Author(s):  
Dee Adams Nikjeh

Abstract Administrators and supervisors face daily challenges over issues such as program funding, service fees, correct coding procedures, and the ever-changing healthcare regulations. Receiving equitable reimbursement for speech-language pathology and audiology services necessitates an understanding of federal coding and reimbursement systems. This tutorial provides information pertaining to two major healthcare coding systems and explains the relationship of these systems to clinical documentation, the Medicare Physician Fee Schedule and equitable reimbursement. An explanation of coding edits and coding modifiers is provided for use in those occasional atypical situations when the standard use of procedural coding may not be appropriate. Also included in this tutorial is a brief discussion of the impact that the Medicare Improvements for Patients and Providers Act of 2008 (HR 6331 Medicare Improvements for Patients and Providers Act [MIPPA], 2008) has had on the valuation of speech-language pathology procedure codes.


2014 ◽  
Vol 22 (4) ◽  
pp. 194-201 ◽  
Author(s):  
Freda-Marie Hartung ◽  
Britta Renner

Humans are social animals; consequently, a lack of social ties affects individuals’ health negatively. However, the desire to belong differs between individuals, raising the question of whether individual differences in the need to belong moderate the impact of perceived social isolation on health. In the present study, 77 first-year university students rated their loneliness and health every 6 weeks for 18 weeks. Individual differences in the need to belong were found to moderate the relationship between loneliness and current health state. Specifically, lonely students with a high need to belong reported more days of illness than those with a low need to belong. In contrast, the strength of the need to belong had no effect on students who did not feel lonely. Thus, people who have a strong need to belong appear to suffer from loneliness and become ill more often, whereas people with a weak need to belong appear to stand loneliness better and are comparatively healthy. The study implies that social isolation does not impact all individuals identically; instead, the fit between the social situation and an individual’s need appears to be crucial for an individual’s functioning.


Crisis ◽  
2016 ◽  
Vol 37 (4) ◽  
pp. 265-270 ◽  
Author(s):  
Meshan Lehmann ◽  
Matthew R. Hilimire ◽  
Lawrence H. Yang ◽  
Bruce G. Link ◽  
Jordan E. DeVylder

Abstract. Background: Self-esteem is a major contributor to risk for repeated suicide attempts. Prior research has shown that awareness of stigma is associated with reduced self-esteem among people with mental illness. No prior studies have examined the association between self-esteem and stereotype awareness among individuals with past suicide attempts. Aims: To understand the relationship between stereotype awareness and self-esteem among young adults who have and have not attempted suicide. Method: Computerized surveys were administered to college students (N = 637). Linear regression analyses were used to test associations between self-esteem and stereotype awareness, attempt history, and their interaction. Results: There was a significant stereotype awareness by attempt interaction (β = –.74, p = .006) in the regression analysis. The interaction was explained by a stronger negative association between stereotype awareness and self-esteem among individuals with past suicide attempts (β = –.50, p = .013) compared with those without attempts (β = –.09, p = .037). Conclusion: Stigma is associated with lower self-esteem within this high-functioning sample of young adults with histories of suicide attempts. Alleviating the impact of stigma at the individual (clinical) or community (public health) levels may improve self-esteem among this high-risk population, which could potentially influence subsequent suicide risk.


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