Gotowe bibliografie tematyczne / Non-standard work hours

Gotowa bibliografia na temat „Non-standard work hours”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 20 lutego 2023

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych

Wybierz rodzaj źródła:

Spis treści

Zobacz listy aktualnych artykułów, książek, rozpraw, streszczeń i innych źródeł naukowych na temat „Non-standard work hours”.

Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.

Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.

Artykuły w czasopismach na temat "Non-standard work hours"

1

Dawkins, Peter. "Non-Standard Hours of Work and Penalty Rates in Australia". Journal of Industrial Relations 27, nr 3 (wrzesień 1985): 329–49. http://dx.doi.org/10.1177/002218568502700304.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

Voloshyna, V. V. "WORK UNDER THE DURATION RATE INSTALLED WORKING HOURS AND NON-STANDARD WORKING HOURS: THE BACKGROUND PROBLEM". Law Bulletin, nr 16 (2020): 89–97. http://dx.doi.org/10.32850/lb2414-4207.2020.16.11.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
3

Glorieux, Ignace, Inge Mestdag, Joeri Minnen i Jessie Vandeweyer. "The Myth of the 24-hour Society: Non-standard Work Hours in Belgium, 1966 and 1999". Social Indicators Research 93, nr 1 (17.12.2008): 177–83. http://dx.doi.org/10.1007/s11205-008-9381-x.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Minnen, Joeri, Ignace Glorieux i Theun Pieter van Tienoven. "Who works when? Towards a typology of weekly work patterns in Belgium". Time & Society 25, nr 3 (1.08.2016): 652–75. http://dx.doi.org/10.1177/0961463x15590918.

Pełny tekst źródła
Streszczenie:
The question when people work is almost always reduced to the question how much people work on (non-)standard working hours. In this contribution, we applied optimal matching techniques using Belgian data from a weekly work grid ( n = 6330) to identify individuals’ work timing patterns, offering a richer analytical approach than most previous studies on (non-)standard work time. Results show that such analysis captures much more and much more relevant variation in the timing of work than simple questions. Three general and 10 more detailed weekly work patterns are identified based on two dimensions of paid work: the number of hours worked and the percentage of hours worked on non-standard periods of time. Additional analyses show that men’s work patterns depend only on job characteristics. For women, work patterns are also explained by socio-economic factors including education, presence of working partner and presence of children.
Style APA, Harvard, Vancouver, ISO itp.
5

Moilanen, Sanna, Vanessa May, Eija Räikkönen, Eija Sevón i Marja-Leena Laakso. "Mothers’ non-standard working and childcare-related challenges". International Journal of Sociology and Social Policy 36, nr 1/2 (14.03.2016): 36–52. http://dx.doi.org/10.1108/ijssp-11-2014-0094.

Pełny tekst źródła
Streszczenie:
Purpose – The purpose of this paper is to particularly focus on lone-mother families, comparing the childcare-related challenges experienced by working lone mothers and coupled mothers in three European countries in the context of a 24/7 economy and non-standard working hours (e.g. evening, night and weekend work). Design/methodology/approach – This study utilises survey data from Finnish, Dutch and British working mothers (n=1,106) collected as part of the “Families 24/7” research project. Multivariate regression analysis is used to analyse the associations between childcare-related challenges, maternal non-standard working, lone motherhood and country of residence. Findings – The results indicated similar results across the three countries by showing that working lone mothers experience childcare-related challenges more often compared with coupled mothers. Furthermore, an increase in maternal non-standard working associated positively with increased childcare-related challenges in both lone mother and coupled families but lone motherhood did not moderate this association. The findings suggest that, regardless of family form, families in all three countries struggle with childcare arrangements when the mother works during non-standard hours. This possibly relates to the inadequate provision of state-subsidised and flexible formal childcare during non-standard hours and to the country-specific maternal work hours cultures. Originality/value – This study responds to the need for comparative research on the reconciliation of maternal non-standard working and childcare with self-collected data from three European welfare states. The importance of the study is further highlighted by the risks posed to the maintenance of maternal employment and family well-being when reconciliation of work and childcare is unsuccessful, especially in lone-mother families.
Style APA, Harvard, Vancouver, ISO itp.
6

Dawkins, Peter, Campbell Rungie i Judith Sloan. "Penalty Rates and Labour Supply: Employee Attitudes to Non-Standard Hours of Work". Journal of Industrial Relations 28, nr 4 (grudzień 1986): 564–87. http://dx.doi.org/10.1177/002218568602800406.

Pełny tekst źródła
Streszczenie:
This paper considers the supply of labour to non-standard hours of work. If penalty rates for such hours of work were reduced, any potential employment creation due to increased labour demand would depend in part on the labour supply response. We consider the rationale for penalty rates, changes in the labour force and in the length of working hours, and evidence on employee attitudes (including in-depth discussion groups that we have organized). It is concluded that changes since the introduction of penalty rates and the heterogeneity of employee preferences make the rigid structure of penalty rates inappropriate. Appropriate patterns of working time and associated compensation vary substantially among industries and occupations.
Style APA, Harvard, Vancouver, ISO itp.
7

Hosking, Amanda, i Mark Western. "The effects of non-standard employment on work—family conflict". Journal of Sociology 44, nr 1 (marzec 2008): 5–27. http://dx.doi.org/10.1177/1440783307085803.

Pełny tekst źródła
Streszczenie:
Over the last five decades the Australian labour market has changed profoundly, one prominent aspect being an increase in non-standard forms of employment. Using data from the first wave of the Household, Income and Labour Dynamics in Australia project, this article explores whether non-standard employment is associated with greater or reduced work—family conflict among employed parents and whether experiences vary by gender. We focus on three types of non-standard employment: part-time hours, casual and fixed-term contracts and non-standard scheduling practices. Regression analyses show that mothers who work full-time rather than part-time experience significantly greater work—family conflict. Casual employment is not linked to a reduction in work—family conflict for either mothers or fathers once we control for working hours. Even though mothers are the primary carer in most families, mothers do not report greater work—family conflict than fathers. We attribute this finding to gender differences in the time spent in employment.
Style APA, Harvard, Vancouver, ISO itp.
8

Moilanen, Sanna, Vanessa May, Eija Sevón, Minna Murtorinne-Lahtinen i Marja-Leena Laakso. "Displaying morally responsible motherhood: lone mothers accounting for work during non-standard hours". Families, Relationships and Societies 9, nr 3 (1.11.2020): 451–68. http://dx.doi.org/10.1332/204674319x15664893823072.

Pełny tekst źródła
Streszczenie:
This study examined how lone mothers rationalise their work during non-standard hours (e.g., evenings and weekends), which they perceive as problematic in terms of child wellbeing, and thereby as violating the culturally shared moral order of ‘good’ motherhood. The data comprise interviews with 16 Finnish lone mothers, analysed as accounts, with a special focus on their linguistic features. The mothers displayed morally responsible motherhood through: (1) excusing work during non-standard hours as an external demand; (2) appealing to an inability to act according to good mothering ideals; (3) using adaptive strategies to protect child wellbeing; and (4) challenging the idea of risk. Our findings indicate that the moral terrain lone mothers must navigate is shaped by the ways in which their family situation contravenes powerful ideologies around good mothering, while their efforts to resist the ensuing stigma are constrained by the need to engage in work during non-standard hours.
Style APA, Harvard, Vancouver, ISO itp.
9

Roeters, A., T. van der Lippe, E. Kluwer i W. Raub. "Parental work characteristics and time with children: The moderating effects of parent’s gender and children’s age". International Sociology 27, nr 6 (13.04.2012): 846–63. http://dx.doi.org/10.1177/0268580911423049.

Pełny tekst źródła
Streszczenie:
This article investigates the association between work characteristics and parent–child interaction time. In addition to studying the commonly considered working hours, the authors investigated the effects of job demands and resources such as job insecurity, autonomy and non-standard hours. Moreover, they analysed whether these associations were different for fathers than for mothers and for parents with young vs adolescent children. The authors analysed self-collected data on 2593 Dutch parents and found that parents participated more in parent–child activities when they worked shorter hours, experienced more autonomy, could be reached by their children at work and worked during non-standard hours. Nevertheless, the work characteristics had little explanatory value additional to the working hours. The association between working hours and parent–child time was weaker for mothers and for parents with young children. Moreover, the beneficial effect of non-standard hours was stronger for mothers and autonomy more relevant for parents with adolescent children.
Style APA, Harvard, Vancouver, ISO itp.
10

Piasna, Agnieszka. "Scheduled to work hard: The relationship between non-standard working hours and work intensity among European workers (2005-2015)". Human Resource Management Journal 28, nr 1 (6.10.2017): 167–81. http://dx.doi.org/10.1111/1748-8583.12171.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
Więcej źródeł

Rozprawy doktorskie na temat "Non-standard work hours"

1

Jekielek, Susan Marie. "Non-standard Work Hours and the Relationship Quality of Dual-Earner Parents". The Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=osu1048796449.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

Allan, Cameron, i n/a. "Labour Utilisation in Queensland Hospitals". Griffith University. Griffith Business School, 1996. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20050906.171638.

Pełny tekst źródła
Streszczenie:
Within Australia and in Europe. there is evidence of growth in the incidence of non¬standard forms of employment such as part-time and casual work. Part of this growth can be attributed to changes in the structure of the economy and the increasing importance of service industries where non-standard forms of employment proliferate. There is also evidence, however, that employers at the firm level are progressively expanding their use of non-standard employment and reducing their reliance on full-time labour. One explanation for this organisational-level phenomena has been suggested by Atkinson (1987) in his account of the ‘flexible firm’. Atkinson claims that employers are increasingly attempting to divide the workforce into two major segments: a skilled, full-time core labour force and an unskilled, non-standard segment. This thesis examines Atkinson’s ‘flexible firm’ model through a study of labour-use practices of three acute hospitals in Queensland. A main finding of this thesis is the generalised and substantial growth of non-standard employment in all types of Queensland hospitals. The growth of non-standard hospital labour is not as, Atkinson would suggest, largely the result of demand-side strategies of employers but is also conditioned by supply-side factors. Gender, rather than skill, is found to be an important determinant of the proliferation of non-standard employment. Non-standard employment is not the major labour adjustment mechanism in all sectors of the hospital industry. Labour intensification is a critical and overlooked form of labour adjustment in the public sector. Overall, this thesis concludes that employers’ labour-use practices need to be conceptualised within the context of the opportunities and constraints imposed by the interaction of demand and supply-side factors.
Style APA, Harvard, Vancouver, ISO itp.
3

Allan, Cameron. "Labour Utilisation in Queensland Hospitals". Thesis, Griffith University, 1996. http://hdl.handle.net/10072/367208.

Pełny tekst źródła
Streszczenie:
Within Australia and in Europe. there is evidence of growth in the incidence of non¬standard forms of employment such as part-time and casual work. Part of this growth can be attributed to changes in the structure of the economy and the increasing importance of service industries where non-standard forms of employment proliferate. There is also evidence, however, that employers at the firm level are progressively expanding their use of non-standard employment and reducing their reliance on full-time labour. One explanation for this organisational-level phenomena has been suggested by Atkinson (1987) in his account of the ‘flexible firm’. Atkinson claims that employers are increasingly attempting to divide the workforce into two major segments: a skilled, full-time core labour force and an unskilled, non-standard segment. This thesis examines Atkinson’s ‘flexible firm’ model through a study of labour-use practices of three acute hospitals in Queensland. A main finding of this thesis is the generalised and substantial growth of non-standard employment in all types of Queensland hospitals. The growth of non-standard hospital labour is not as, Atkinson would suggest, largely the result of demand-side strategies of employers but is also conditioned by supply-side factors. Gender, rather than skill, is found to be an important determinant of the proliferation of non-standard employment. Non-standard employment is not the major labour adjustment mechanism in all sectors of the hospital industry. Labour intensification is a critical and overlooked form of labour adjustment in the public sector. Overall, this thesis concludes that employers’ labour-use practices need to be conceptualised within the context of the opportunities and constraints imposed by the interaction of demand and supply-side factors.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith Business School
Griffith Business School
Full Text
Style APA, Harvard, Vancouver, ISO itp.
4

Smith, Andrew J., i J. McBride. "'Working to live, not living to work': low-paid multiple employment and work-life articulation". Sage, 2020. http://hdl.handle.net/10454/17915.

Pełny tekst źródła
Streszczenie:
Yes
This paper critically examines how low-paid workers, who need to work in more than one legitimate job to make ends meet, attempt to reconcile work and life. The concept of work-life articulation is utilised to investigate the experiences, strategies and practicalities of combining multiple employment with domestic and care duties. Based on detailed qualitative research, the findings reveal workers with 2, 3, 4, 5 and even 7 different jobs due to low-pay, limited working hours and employment instability. The study highlights the increasing variability of working hours, together with the dual fragmentation of working time and employment. It identifies unique dimensions of work extensification, as these workers have an amalgamation of jobs dispersed across fragmented, expansive and complex temporalities and spatialities. This research makes explicit the interconnected economic and temporal challenges of low-pay, insufficient hours and precarious employment, which creates significant challenges of juggling multiple jobs with familial responsibilities.
Style APA, Harvard, Vancouver, ISO itp.
5

Smith, Andrew J. "'The Magnificent 7[am]?' Work-life articulation beyond the 9[am] to 5[pm] 'norm'". 2016. http://hdl.handle.net/10454/9494.

Pełny tekst źródła
Streszczenie:
Yes
This article focuses on the work-life ‘balance’ challenges of those who work in organisations that operate beyond standard hours. The concept of work-life articulation is utilised to examine the experiences and practicalities of attempting to reconcile the, often competing, demands of employment and family life. Qualitative research was conducted in two private sector businesses and one third sector organisation in the UK during the onset of the 2008 financial crisis. The findings reveal increasing competitive pressures, efficiency drives and work intensification. ‘Business needs’ are prioritised over care responsibilities, and in the private sector organisations there is declining flexible working with a reassertion of the management prerogative. This article contributes to current debates over work-life ‘balance’ and highlights variable, changeable and unpredictable working time arrangements that permeate non-standard hours, which creates additional complexities and challenges for family time schedules and routines.
ESRC
Style APA, Harvard, Vancouver, ISO itp.

Książki na temat "Non-standard work hours"

1

Iskra-Golec, Irena, Janet Barnes-Farrell i Philip Bohle, red. Social and Family Issues in Shift Work and Non Standard Working Hours. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42286-2.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

Wilde, Eamonn Denis. Shiftwork, health and well-being: The biomedical, psychological and psychosocial consequences of working non-standard hours. Dublin: University College Dublin, 1988.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
3

Bohle, Philip, Irena Iskra-Golec i Janet Barnes-Farrell. Social and Family Issues in Shift Work and Non Standard Working Hours. Springer, 2016.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Bohle, Philip, Irena Iskra-Golec i Janet Barnes-Farrell. Social and Family Issues in Shift Work and Non Standard Working Hours. Springer London, Limited, 2016.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
5

Bohle, Philip, Irena Iskra-Golec i Janet Barnes-Farrell. Social and Family Issues in Shift Work and Non Standard Working Hours. Springer, 2018.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
6

Mills, Melinda, i Kadri Täht. Out of Time: The Consequences of Non-standard Employment Schedules for Family Cohesion. Springer, 2015.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
7

Mills, Melinda, i Kadri Täht. Out of Time: The Consequences of Non-Standard Employment Schedules for Family Cohesion. Springer London, Limited, 2015.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
8

Usami, K. Non-Standard Employment under Globalization: Flexible Work and Social Security in the Newly Industrializing Countries. Palgrave Macmillan, 2009.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
9

Kōichi, Usami, i International Economic Association, red. Non-standard employment under globalization: Flexible work and social security in the newly industrializing countries. New York: Palgrave Macmillan, 2010.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
10

Alewell, Dorothea, i Wenzel Matiaske, red. Standards guter Arbeit. Nomos Verlagsgesellschaft mbH & Co. KG, 2019. http://dx.doi.org/10.5771/9783845299310.

Pełny tekst źródła
Streszczenie:
The changes in the labour market as a result of an increase in non-standard employment raises the question of how to ensure decent labour standards today. This question cannot be answered by one discipline alone. Instead, finding an answer demands collaboration in an interdisciplinary endeavour to determine labour standards for improved well-being. In this collection of studies, contributions from psychology look at labour and health; contributions from human resource management (HRM) investigate the effects of both HRM strategies and diversity management and of religion at work, and look at the impact of legal regulations on working hours and co-determination; a contribution from protestant theology analyses the interaction between work and meaning; and finally contributions from the field of law take a look at the legal status of employees when firms are organised as networks and at the social security regulations for self-employed individuals. With contributions by Katharina Klug and Jörg Felfe; Christine Busch and Tim Vahle-Hinz; Sven Hauff; Daniela Rastetter; Dorothea Alewell and Tobias Moll; Barbara Müller, Christoph Seibert and Oliver Vornfeld; Florian Schramm and Ines Kanngießer; Margarete Schuler-Harms and Katharina Goldberg; Hans Hanau and Wenzel Matiaske
Style APA, Harvard, Vancouver, ISO itp.

Części książek na temat "Non-standard work hours"

1

Bohle, Philip. "Work-Life Conflict in ‘Flexible Work’: Precariousness, Variable Hours and Related Forms of Work Organization". W Social and Family Issues in Shift Work and Non Standard Working Hours, 91–105. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42286-2_5.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

Costa, Giovanni. "Introduction to Problems of Shift Work". W Social and Family Issues in Shift Work and Non Standard Working Hours, 19–35. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42286-2_2.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
3

Grzywacz, Joseph G. "Shift Work and Its Implications for Everyday Work and Family Life: A Foundation and Summary". W Social and Family Issues in Shift Work and Non Standard Working Hours, 3–17. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42286-2_1.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Ribeiro-Silva, Flaviany, Lucia Rotenberg i Frida Marina Fischer. "Irregular Work Shifts and Family Issues—The Case of Flight Attendants". W Social and Family Issues in Shift Work and Non Standard Working Hours, 137–50. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42286-2_7.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
5

Camerino, Donatella. "Gender Differences in Safety, Health and Work/Family Interference—Promoting Equity". W Social and Family Issues in Shift Work and Non Standard Working Hours, 153–79. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42286-2_8.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
6

Jansen, Nicole W. H., i IJ Kant. "Reciprocal Relations Between Working Time Arrangements and Work-Family Conflict Over Time". W Social and Family Issues in Shift Work and Non Standard Working Hours, 59–90. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42286-2_4.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
7

Iskra-Golec, Irena. "Individual Differences in Circadian Rhythm Parameters and Work-Family Spillover in Shift Workers". W Social and Family Issues in Shift Work and Non Standard Working Hours, 181–202. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42286-2_9.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
8

Arlinghaus, Anna, i Friedhelm Nachreiner. "Unusual and Unsocial? Effects of Shift Work and Other Unusual Working Times on Social Participation". W Social and Family Issues in Shift Work and Non Standard Working Hours, 39–57. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42286-2_3.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
9

Radošević-Vidaček, Biserka, Adrijana Košćec i Marija Bakotić. "Parents Working Non-standard Schedules and Schools Operating in Two Shifts: Effects on Sleep and Daytime Functioning of Adolescents". W Social and Family Issues in Shift Work and Non Standard Working Hours, 109–36. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42286-2_6.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
10

Inoue, Mariko, Yoshiharu Fukuda i Eric Brunner. "Work and Health in a Diverse and Disparate Labour Market". W Health in Japan, 101–16. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198848134.003.0007.

Pełny tekst źródła
Streszczenie:
Japan’s economic growth excelled in the twentieth century. Since the 1990s, there has been a long period of low economic growth (the ‘lost decades’) and expanding social disparity. Traditional lifetime employment, mainly for men, gradually shifted towards diverse working arrangements including part-time, temporary, and fixed-term contracts, for men and women. Deregulation aimed to introduce labour market flexibility in response to the economic slowdown. Working regulations were not reformed in response to diversification of working patterns. Economic and health gaps between regular workers and non-standard workers expanded. Non-standard workers were disadvantaged by relatively limited access to healthcare. Epidemiological and policy analysis is limited partly because participants in non-standard employment are difficult to follow. More research evidence on current diverse working patterns and health is necessary for policymaking in the Japanese context. Social changes in employment arrangements prompted the Japanese government to initiate work reforms in 2019 to secure fair treatment of all workers, regardless of work arrangements, and to reduce working hours.
Style APA, Harvard, Vancouver, ISO itp.

Streszczenia konferencji na temat "Non-standard work hours"

1

Wang, T. P., A. Wells i D. Bediones. "5,000-Hour Stability Tests of Metal Sheathed Thermocouples at Respective Temperatures of 538°C and 875°C". W ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/91-gt-182.

Pełny tekst źródła
Streszczenie:
Metal sheathed mineral insulated thermocouples used for measurement of exhaust gas temperature in turbines and aircraft engines are usually not replaced after initial installation. Therefore, the change in calibration of these thermocouples during service is of interest. In this paper, two 5,000 hour stability tests were conducted on some standard and non-standard thermocouples in the laboratory in air atmosphere at 538°C, the mid temperature for gas turbine application and at 875°C, near the high end of aircraft engine applications. A comparison is made on calibration changes between laboratory and actual environment. Future work involving extension of the 875°C beyond 5,000 hours, laboratory testing in reducing atmospheres and insitu testing is proposed.
Style APA, Harvard, Vancouver, ISO itp.
2

Hosein, Tarick, Bheshem Ramlal, Lisa Kirton-Reed i Adrian Trotman. "AN ANALYTICAL APPROACH TO GIS ANALYSIS AND MAP MAKING USING OPEN SOURCE SOFTWARE". W International Conference on Emerging Trends in Engineering & Technology (IConETech-2020). Faculty of Engineering, The University of the West Indies, St. Augustine, 2020. http://dx.doi.org/10.47412/jkkp1396.

Pełny tekst źródła
Streszczenie:
Over the last two decades, advancements in analytical cartography have reduced the need for professional geomatics experts when creating maps. GIS software have greatly simplified the map creation process, allowing non-experts to make maps using many built-in tools. However, this has resulted in a lack of quality control and assessment when data is manipulated and processed towards developing maps. This also raises questions with regards to reliability, validity and objectivity of data, results and maps. In contrast, this paper presents a methodology for automating both the GIS analysis and Map Making processes using analytical cartography in a non-standard GIS environment. The work was done primarily in the R environment, open source software and programming, to replicate processes that were normally done using expensive proprietary software and many person hours. Applied in a case study to improve the workflow efficiency in precipitation index modelling, the developed system was found to improve on overall time by tenfold, the formats and number of products generated were more than doubled, the replicability of map layouts was greatly improved, and the published formats increased.
Style APA, Harvard, Vancouver, ISO itp.
3

Pradhan, Salil, Francois Billaut i Sunil Gopakumar. "Assembly and Reliability Studies on Reworked and Non-Reworked QFN Packages". W ASME 2009 InterPACK Conference collocated with the ASME 2009 Summer Heat Transfer Conference and the ASME 2009 3rd International Conference on Energy Sustainability. ASMEDC, 2009. http://dx.doi.org/10.1115/interpack2009-89405.

Pełny tekst źródła
Streszczenie:
Quad Flat No lead (QFN) packages are being used as alternative components to some of the large form-factor packages due to their smaller footprint, improved thermal and electrical performance. During the past few years, there has been a surge of published papers by end users and component manufacturers on the topic of assembly and reliability of the QFN packages. Both empirical and simulation data has been published, which has helped several manufacturers to develop design guidelines and assembly processes for these packages. There exists a gap in the current published work on the assembly and reliability of high I/O count QFNs on thick boards. In addition, reliability of the rework process on QFNs is not well documented. Therefore, objectives of this research were the following: • Evaluate the second level reliability in thermal cycling for reworked and non-reworked QFNs; • Evaluate the reliability of different sized QFNs on 125 mil thick boards and compare with existing literature; • Failure analysis and recommendations for reliability improvement; • Land pattern comparison; and • Rework process improvement. Studies have been conducted on different QFN packages between 32 pins and 164 pins on 125 mil thick boards with Organic Solder Preservative (OSP) surface finish. Experimental design includes the use of different package sizes, alternate thermal pad patterns, and use of tin-lead versus lead free processes. A subset of some of the package types has also been reworked using variations of the standard BGA rework processes to evaluate its reliability. All packages were daisy chained. Boards were subjected to thermal cycling test between 0 to 100 deg C for 6000 hours. Data is analyzed using Weibull distribution. Failure mechanisms have been analyzed using dye penetration tests and cross sections. The reliability results are discussed in terms of package construction, type of land patterns and rework. Recommendations for process improvement are delineated.
Style APA, Harvard, Vancouver, ISO itp.
4

Dennis, R. J., S. Phillips, C. E. Truman, A. Stiles i R. Plant. "Simulation of Quenching in Aluminium and Comparison With Neutron Diffraction Measurements". W ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61491.

Pełny tekst źródła
Streszczenie:
The through life integrity of engineering components are routinely assessed using complex finite element methods. A critical input to such an assessment is an understanding of the operating environment, including service loading and temperature. Significant effort is expended identifying and understanding the effect of service loads on component integrity however there are many cases where service loading in isolation cannot account for premature failure of components during testing or in-service. A key assumption is that components in the as-built condition are often treated as stress and defect free and of nominal dimensions. This approach can however be inadequate and there are many documented cases where residual stress has influenced the in-service integrity of components. In this paper the magnitude and distribution of residual stresses are investigated in a quenched Aluminium 2014A TB test specimen. The test specimen has been specifically designed to contain design features representative of pressurised aerospace components which are quenched during manufacture. The specimen has two sections, one cylindrical (65mm internal diameter) and one oval (125mm largest internal diameter). The outer wall thickness is 10mm and the overall specimen length is 200mm with the two sections joined by a 30mm bridge section. The specimen has been subject to solution heat treatment at 505°C for five hours. Following heat treatment the specimen is rapidly quenched in cold water at 10°C with the cylindrical end entering the water first. Non-linear finite element methods have been developed to simulate the quenching process making use of user defined subroutines to enhance the standard features available in the finite element code. The accuracy of the predicted residual stresses has been assessed by comparison with neutron diffraction measurements at a range of critical locations. The work provides an extremely useful insight into how non-linear finite element methods can be successfully used to predict the residual stresses that are generated as a result of the quenching process. Where residual stresses are a potential integrity concern an understanding of the magnitude and spatial distribution of residual stress can be used to influence both the design and in-service operation of components.
Style APA, Harvard, Vancouver, ISO itp.
5

Probst, Daniel, Sameera Wijeyakulasuriya, Eric Pomraning, Janardhan Kodavasal, Riccardo Scarcelli i Sibendu Som. "Predicting Cycle-to-Cycle Variation With Concurrent Cycles in a Gasoline Direct Injected Engine With Large Eddy Simulations". W ASME 2018 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icef2018-9722.

Pełny tekst źródła
Streszczenie:
High cycle-to-cycle variation (CCV) is detrimental to engine performance, as it leads to poor combustion and high noise and vibration. In this work, CCV in a gasoline engine is studied using large eddy simulation (LES). The engine chosen as the basis of this work is a single-cylinder gasoline direct injection (GDI) research engine. Two stoichiometric part-load engine operating points (6 BMEP, 2000 RPM) were evaluated: a non-dilute (0% EGR) case and a dilute (18% EGR) case. The experimental data for both operating conditions had 500 cycles. The measured CCV in IMEP was 1.40% for the non-dilute case and 7.78% for the dilute case. To estimate CCV from simulation, perturbed concurrent cycles of engine simulations were compared to consecutively obtained engine cycles. The motivation behind this is that running consecutive cycles to estimate CCV is quite time-consuming. For example, running 100 consecutive cycles requires 2–3 months (on a typical cluster), however, by running concurrently one can potentially run all 100 cycles at the same time and reduce the overall turnaround time for 100 cycles to the time taken for a single cycle (2 days). The goal of this paper is to statistically determine if concurrent cycles, with a perturbation applied to each individual cycle at the start, can be representative of consecutively obtained cycles and accurately estimate CCV. 100 cycles were run for each case to obtain statistically valid results. The concurrent cycles began at different timings before the combustion event, with the motivation to identify the closest time before spark to minimize the run time. Only a single combustion cycle was run for each concurrent case. The calculated standard deviation of peak pressure and coefficient of variance (COV) of indicated mean effective pressure (IMEP) were compared between the consecutive and concurrent methods to quantify CCV. It was found that the concurrent method could be used to predict CCV with either a velocity or numerical perturbation. A large and small velocity perturbation were compared and both produced correct predictions, implying that the type of perturbation is not important to yield a valid realization. Starting the simulation too close to the combustion event, at intake valve close (IVC) or at spark timing, under-predicted the CCV. When concurrent simulations were initiated during or before the intake even, at start of injection (SOI) or earlier, distinct and valid realizations were obtained to accurately predict CCV for both operating points. By simulating CCV with concurrent cycles, the required wall clock time can be reduced from 2–3 months to 1–2 days. Additionally, the required core-hours can be reduced up to 41%, since only a portion of each cycle needs to be simulated.
Style APA, Harvard, Vancouver, ISO itp.
6

Arosio, Franco, i Ingo Lange. "Lifetime Protection of Iron Casted Brake Discs for Electric Vehicles through Advanced Heat Treatment Technology". W EuroBrake 2021. FISITA, 2021. http://dx.doi.org/10.46720/1978791eb2021-mds-006.

Pełny tekst źródła
Streszczenie:
The rise of Electrical Vehicles (EVs) is unstoppable and EVs will become a key part of the mainstream automotive market. According to recent post-COVID-19 scenarios based on IHS data, EVs will surge up to 14% of global passenger car sales in 2027 and go up to 57% in 2040. The electrification of future mobility concepts is going along with new requirements also for the brake system. EVs with regenerative braking applications utilize the traditional friction brakes in fewer circumstances due to recuperation: therefore the risk of superficial corrosion increases. In case of an emergency brake situation the basic requirement is that the braking surface will be free of corrosion to have maximum brake power. Thus, the corrosion-free condition on the braking surface is a safety requirement at any time. The state of the art solution consists of paintings or “coatings”, such as ultraviolet (UV)-hardening paint, Zn or Zn/Al paints, which can perform well in new conditions (e.g. up to 120 hours in standard UNI ISO 9227 salt fog chamber). But these solutions will be easily abraded within approximately 20 standard-condition braking applications. The corrosion-free condition during the lifetime of the disc is not achieved yet in the current state of the art; rust or corrosion can seriously downgrade the braking performances. This paper is describing an innovative 2-step process to improve the corrosion and wear resistance of standard cast iron brake discs. In the first step, the amount of undesired graphite lamellae will be reduced from the surface with customized parameters, according to the individual types of grey cast iron material of the substrate. This pre-process is followed by a thermochemical diffusion process including controlled oxidation of the substrate resulting in high corrosion protection of the rotors. The authors will produce proof of corrosion resistance up to 300 hours in salt conditions according to UNI ISO 9277. In addition, bench tests and vehicle endurance tests have been performed in cooperation with Tier 1 and OEMs and have shown increased wear resistance even with non-electric cars and with standard ECE brake pads. The novel surface solution could be also applied to non-functional areas of the brake disc like cooling channels, bell and swan neck in order to substitute the current paintings. In summary, the new 2-step heat treatment process is a price competitive solution for corrosion protection of functional and non-functional areas of iron casted brake discs over the entire lifetime, especially on EVs with strong recuperation. But this solution also works for hybrid and conventional cars in preferably on the rear axis with low-abrasive brake pads (e.g. NAO pads). Finally, even when the vehicle fleet goes all-electric, dust emission from brakes and tyres will still pollute the environment. Addressing this topic, the authors will provide an outlook of the ongoing activities to reduce brake dust emissions with innovative surface solutions.
Style APA, Harvard, Vancouver, ISO itp.
7

Schneider, Jerry, Jeffrey Wagner i Judy Connell. "Restoring Public Trust While Tearing Down Site in Rural Ohio". W The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7319.

Pełny tekst źródła
Streszczenie:
In the mid-1980s, the impact of three decades of uranium processing near rural Fernald, Ohio, 18 miles northwest of Cincinnati, became the centre of national public controversy. When a series of incidents at the uranium foundry brought to light the years of contamination to the environment and surrounding farmland communities, local citizens’ groups united and demanded a role in determining the plans for cleaning up the site. One citizens’ group, Fernald Residents for Environmental Safety and Health (FRESH), formed in 1984 following reports that nearly 300 pounds of enriched uranium oxide had been released from a dust-collector system, and three off-property wells south of the site were contaminated with uranium. For 22 years, FRESH monitored activities at Fernald and participated in the decision-making process with management and regulators. The job of FRESH ended on 19 January this year when the U.S. Secretary of Energy Samuel Bodman and U.S. Environmental Protection Agency Administrator Stephen Johnson — flanked by local, state, and national elected officials, and citizen-led environmental watchdog groups including FRESH — officially declared the Fernald Site clean of all nuclear contamination and open to public access. It marked the end of a remarkable turnaround in public confidence and trust that had attracted critical reports from around the world: the Cincinnati Enquirer; U.S. national news programs 60 Minutes, 20/20, Nightline, and 48 Hours; worldwide media outlets from the British Broadcasting Company and Canadian Broadcasting Company; Japanese newspapers; and German reporters. When personnel from Fluor arrived in 1992, the management team thought it understood the issues and concerns of each stakeholder group, and was determined to implement the decommissioning scope of work aggressively, confident that stakeholders would agree with its plans. This approach resulted in strained relationships with opinion leaders during the early months of Fluor’s contract. To forge better relationships, the U.S. Department of Energy (DOE) who owns the site, and Fluor embarked on three new strategies based on engaging citizens and interested stakeholder groups in the decision-making process. The first strategy was opening communication channels with site leadership, technical staff, and regulators. This strategy combined a strong public-information program with two-way communications between management and the community, soliciting and encouraging stakeholder participation early in the decision-making process. Fluor’s public-participation strategy exceeded the “check-the-box” approach common within the nuclear-weapons complex, and set a national standard that stands alone today. The second stakeholder-engagement strategy sprang from mending fences with the regulators and the community. The approach for dispositioning low-level waste was a 25-year plan to ship it off the site. Working with stakeholders, DOE and Fluor were able to convince the community to accept a plan to safely store waste permanently on site, which would save 15 years of cleanup and millions of dollars in cost. The third strategy addressed the potentially long delays in finalizing remedial action plans due to formal public comment periods and State and Federal regulatory approvals. Working closely with the U.S. and Ohio Environmental Protection Agencies (EPA) and other stakeholders, DOE and Fluor were able to secure approvals of five Records of Decision on time – a first for the DOE complex. Developing open and honest relationships with union leaders, the workforce, regulators and community groups played a major role in DOE and Fluor cleaning up and closing the site. Using lessons learned at Fernald, DOE was able to resolve challenges at other sites, including worker transition, labour disputes, and damaged relationships with regulators and the community. It took significant time early in the project to convince the workforce that their future lay in cleanup, not in holding out hope for production to resume. It took more time to repair relationships with Ohio regulators and the local community. Developing these relationships over the years required constant, open communications between site decision makers and stakeholders to identify issues and to overcome potential barriers. Fluor’s open public-participation strategy resulted in stakeholder consensus of five remedial-action plans that directed Fernald cleanup. This strategy included establishing a public-participation program that emphasized a shared-decision making process and abandoned the government’s traditional, non-participatory “Decide, Announce, Defend” approach. Fernald’s program became a model within the DOE complex for effective public participation. Fluor led the formation of the first DOE site-specific advisory board dedicated to remediation and closure. The board was successful at building consensus on critical issues affecting long-term site remediation, such as cleanup levels, waste disposal and final land use. Fluor created innovative public outreach tools, such as “Cleanopoly,” based on the Monopoly game, to help illustrate complex concepts, including risk levels, remediation techniques, and associated costs. These innovative tools helped DOE and Fluor gain stakeholder consensus on all cleanup plans. To commemorate the outstanding commitment of Fernald stakeholders to this massive environmental-restoration project, Fluor donated $20,000 to build the Weapons to Wetlands Grove overlooking the former 136-acre production area. The grove contains 24 trees, each dedicated to “[a] leader(s) behind the Fernald cleanup.” Over the years, Fluor, through the Fluor Foundation, also invested in educational and humanitarian projects, contributing nearly $2 million to communities in southwestern Ohio, Kentucky and Indiana. Further, to help offset the economic impact of the site’s closing to the community, DOE and Fluor promoted economic development in the region by donating excess equipment and property to local schools and townships. This paper discusses the details of the public-involvement program — from inception through maturity — and presents some lessons learned that can be applied to other similar projects.
Style APA, Harvard, Vancouver, ISO itp.
8

Vestbøstad, Tone M., Ole David Økland, Gunnar Lian i Terje Peder Stavang. "Column Slamming Loads on a TLP From Steep and Breaking Waves". W ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61786.

Pełny tekst źródła
Streszczenie:
Previous model test campaigns of various large-volume platforms indicate that wave impact loads on vertical platform columns can become high in extreme sea states. Column slamming is a highly non-linear and complex problem and reliable estimation1 of Ultimate Limit State (ULS) and Accidental Limit State (ALS) design loads is a challenge. Previous measurements indicate ALS pressures of about 3 MPa acting on an area of typically 50m2 in North Sea and Norwegian Sea wave conditions. The corresponding ULS loads were in the range 1.5–2.0 MPa for the same impact area. Such high predictions for ULS and ALS impact pressures may be critical for both steel and concrete platforms, and accurate predictions of design loads is therefore crucial to establish the correct level of safety. A model test campaign dedicated to investigate column slamming has been performed on the Heidrun platform, a large concrete Tension Leg Platform (TLP). The column diameter is 31 m. The test campaign was performed in 2013 at Marintek (now Sintef Ocean), at a model scale of 1:55. The main objective of the test campaign was to estimate the characteristic slamming loads, defined as the q-annual extreme 3-hour slamming load level of 10−2 for the Ultimate Limit State (ULS) and 10−4 for the Accidental Limit State (ALS). To ascertain that the test campaign would result in reliable load estimates, a pre-study on column slamming was performed, involving a selected expert group with participants from several organizations. Review of previous work, identification of governing parameters for wave impact and assessment of model uncertainties and extreme value prediction of slamming loads was performed. It was concluded that two challenges were to be specifically addressed during the planning and execution of the test: 1) the localized nature and short duration of the slamming loads and 2) the large statistical variability of the slamming loads. To address the first challenge, special focus was given to the extent and quality of the instrumentation capturing the slamming loads. Comprehensive documentation of the instrumentation was also performed using hammer testing, structural analysis and drop tests. The second challenge was addressed with a carefully planned test strategy. The resulting model test campaign set a new standard for model testing of such loads, using over 80 slamming panels with a sampling frequency of 19.2 kHz, and over 300 sea state realizations. This paper presents the planning and execution of the model test campaign, including the instrumentation and model set-up, the test matrix, main challenges, findings and results.
Style APA, Harvard, Vancouver, ISO itp.
Możesz być także zainteresowany rozszerzonymi bibliografiami na temat „Non-standard work hours” dla poszczególnych typów źródeł:
Artykuły w czasopismach
Oferujemy zniżki na wszystkie plany premium dla autorów, których prace zostały uwzględnione w tematycznych zestawieniach literatury. Skontaktuj się z nami, aby uzyskać unikalny kod promocyjny!

Do bibliografii