Asymptotic Behavior in Slumping From a Cylindrical Tank

1984 ◽  
Vol 106 (3) ◽  
pp. 279-284 ◽  
Author(s):  
Y. Bai ◽  
W. Johnson ◽  
R. G. M. Low ◽  
S. K. Ghosh
Keyword(s):  
Transition Period ◽  
Health And Safety ◽  
Local Environment ◽  
Theoretical Background ◽  
Hazardous Substance ◽  
Substance Flows ◽  
Linear Relationships ◽  
Characteristic Features ◽  
And Control ◽  
Future Work

When an oil tank collapses or ruptures any contained hazardous substance flows outwards and can damage nearby plant or people as well as lead to pollution of the local environment. In recent years, this and similar subjects have given rise to a new kind of engineering—spill prevention and control. However, theoretical background, backed by experiment, is lacking to work out reliable regulations. An intermediate-asymptotic analysis for late-stage spreading is carried out in this paper. This analysis reveals several characteristic features of the spill wave such as transition period and linear relationships between spreading area and time, and wave front velocity and the inverse of zone radius. Most of the latter results have been verified by model experiment. This paper also discusses the discrepancies between observations and the theory suggested in a recent UK Health and Safety Executive report. Finally, the present paper puts forward proper modeling rules for future work.

Residual Gas Reaction in the Electron Microscope: II The Design of a Gas-Control Chamber for Quantitative Observations

1969 ◽  
Vol 27 ◽  
pp. 82-83
Author(s):  
Chester J. Calbick ◽  
Richard E. Hartman
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Local Environment ◽  
Chamber Pressure ◽  
Objective Lens ◽  
Ion Pump ◽  
Quantitative Studies ◽  
Precise Knowledge ◽  
Differential Pumping ◽  
And Control

Quantitative studies of the phenomenon associated with reactions induced by the electron beam between specimens and gases present in the electron microscope require precise knowledge and control of the local environment experienced by the portion of the specimen in the electron beam. Because of outgassing phenomena, the environment at the irradiated portion of the specimen is very different from that in any place where gas pressures and compositions can be measured. We have found that differential pumping of the specimen chamber by a 4" Orb-Ion pump, following roughing by a zeolite sorption pump, can produce a specimen-chamber pressure 100- to 1000-fold less than that in the region below the objective lens.

Pre-service music teachers' satisfaction: person–environment fit approach

2012 ◽  
Vol 29 (3) ◽  
pp. 371-385 ◽  
Author(s):  
Serkan Perkmen ◽  
Beste Cevik ◽  
Mahir Alkan
Keyword(s):  
Music Education ◽  
Music Teachers ◽  
Music Teacher ◽  
Theoretical Frameworks ◽  
Vocational Satisfaction ◽  
Highly Correlated ◽  
Service Music ◽  
And Control ◽  
Future Work

Guided by three theoretical frameworks in vocational psychology, (i) theory of work adjustment, (ii) two factor theory, and (iii) value discrepancy theory, the purpose of this study was to investigate Turkish pre-service music teachers' values and the role of fit between person and environment in understanding vocational satisfaction. Participants were 85 students enrolled in the department of music education in a Turkish university. The Minnesota Importance Questionnaire (MIQ) was used to examine the participants’ values in six dimensions: achievement, comfort, status, altruism, safety and autonomy. Results revealed that the pre-service teachers value achievement most followed by autonomy, which suggests that they would like to have a sense of accomplishment and control in their future job. The degree to which their values fit their predictions about future work environment was found to be highly correlated with vocational satisfaction. These results provided evidence that the vocational theories used in the current study offers a helpful and different perspective to understand the pre-service teachers' satisfaction with becoming a music teacher in the future. We believe that researchers in the field of music education may use these theories and MIQ to examine the role of values in pre-service and in-service music teachers' job satisfaction.

scholarly journals An afebrile heartwater-like syndrome in goats

2013 ◽  
Vol 84 (1) ◽  
Author(s):  
Rhoda Leask ◽  
Kenneth P. Pettey ◽  
Gareth F. Bath
Keyword(s):  
Clinical Signs ◽  
Control Measures ◽  
Sub Saharan Africa ◽  
Limiting Factor ◽  
Febrile Reaction ◽  
Presumptive Diagnosis ◽  
Appropriate Treatment ◽  
Sub Saharan ◽  
Characteristic Features ◽  
And Control

Heartwater is a serious limiting factor for sheep and goat production in the major endemic area of sub-Saharan Africa and therefore most knowledge, research and control methods originate from this region. Whilst the usual or common clinical presentations can be used to make a presumptive diagnosis of heartwater with a good measure of confidence, this is not always the case, and animals suffering from heartwater may be misdiagnosed because their cases do not conform to the expected syndrome, signs and lesions. One aberrant form found occasionally in the Channel Island breeds of cattle and some goats is an afebrile heartwaterlike syndrome. The most constant and characteristic features of this heartwater-like syndrome comprise normal temperature, clinical signs associated with generalised oedema, and nervous signs, especially hypersensitivity. The presumption that the disease under investigation is the afebrile heartwater-like syndrome entails a tentative diagnosis based on history and clinical signs and the response to presumed appropriate treatment (metadiagnosis). The afebrile heartwater-like syndrome presents similarly to peracute heartwater but without the febrile reaction. Peracute cases of heartwater have a high mortality rate, enabling confirmation of the disease on post-mortem examination. Recognition of the afebrile heartwater-like syndrome is important to prevent deaths and identify the need for appropriate control measures.

FROM PLANNED ECONOMY CULTURE TO ENTREPRENEURIAL CULTURE: THE EXAMPLE OF BULGARIAN AND ROMANIAN ORGANISATIONS

1998 ◽  
Vol 06 (02) ◽  
pp. 155-170 ◽  
Author(s):  
MIHAELA KELEMEN ◽  
LATCHEZAR HRISTOV
Keyword(s):  
Transition Period ◽  
Explanatory Power ◽  
Senior Managers ◽  
Planned Economy ◽  
Five Dimensions ◽  
Entrepreneurial Culture ◽  
Production And Distribution ◽  
Western Market ◽  
And Control ◽  
Depth Interviews

The dismantling, in 1989, of the socialist mode of production and distribution in Bulgaria and Romania has marked the beginning of a turbulent and unprecedented period which has had dramatic implications on organisational survival. Some organisations have adapted well to the demands of the so called transition period, others have collapsed in no time. The paper explores the process of change from planned economy culture to entrepreneurial culture in four Bulgarian organisations and four Romanian organisations which have managed to establish themselves as quality suppliers for the Western market. The research methodology consists in in-depth interviews conducted with senior managers as well as an analysis of organisational documents. The theoretical model proposed by the paper is grounded in data, being developed according to Eisenhardt's (1989) methodology. Thus, the change from planned economy culture to entrepreneurial culture is mapped along five dimensions namely, strategic orientation, organisational structure, commitment to quality, technological innovation and control of resources. This theoretical framework has explanatory power only within the organisational settings explored, making no claims to absolute truth or generalisability. However, the model may serve as a working formula for other organisations facing similar pressures.

scholarly journals Nanotechnology: A Journey towards Finding Solutions

2015 ◽  
Vol 5 (1) ◽  
pp. 61
Author(s):  
Satya Pal Singh
Keyword(s):  
Health And Safety ◽  
Functional Materials ◽  
Simulation Method ◽  
Industrial Applications ◽  
Policy Makers ◽  
Advance Research ◽  
American Physical ◽  
Richard Feynman ◽  
And Control ◽  
Thin Film Magnetism

<p class="1Body">Nanotechnology is the understanding and control of matter at the diemnsions ranging between 1-100 nm. One nanometer is one billionth of a meter. Nanotechnology involves manipulation of atoms, imaging, measuring and modelling at nano scale. Its potentials were first highlighted by Richard Feynman in the American Physical Scociety meeting in 1959. Though, he did not coin the world nanotechnology himself but he explored the possiblities of functional materials at the bottom of the scale. In last two decades this technology has been commercialized to great extent and gaining importance day by day influencing the economies of different countries and henceforth enforcing the policy makers to address the issues like environment, health and safety. Governments are regularisaing and monitoring its research, uses, applications and technology transfer which includes intelluctaul property rights. This paper addresses the dimensions and trends of nanotechnology covering economic aspects. The paper is focussed on the changes in the functional properties of nanomaterials as physical, chemical, optical, electronic, electrical, magnetic etc. in comparision to those of the bulk of material. It has been discussed how the basic and advance research in nanoscience could be explotiedfor making technologies for its commercial and industrial applications for the benefit and safety of the soceity. Thin film magnetism is demonstrated using Monte Carlo simulation method. Experimental synthesisof some of thenanorods and qunatum dots are also discussed.</p>

scholarly journals Reducing Assaults Against Staff Using Body-Worn Cameras (BWCs) in Railway Stations

2018 ◽  
Vol 44 (1) ◽  
pp. 76-93 ◽  
Author(s):  
Barak Ariel ◽  
Mark Newton ◽  
Lorna McEwan ◽  
Garry A. Ashbridge ◽  
Cristobal Weinborn ◽  
...  
Keyword(s):  
Workplace Violence ◽  
Physical Violence ◽  
Controlled Trial ◽  
Health And Safety ◽  
Cost Effective ◽  
Railway Stations ◽  
Major Health ◽  
Diffusion Of Benefits ◽  
And Control ◽  
Official Records

Workplace violence is a major health and safety phenomenon. We investigate whether body-worn cameras (BWCs) can achieve a cost-effective reduction of assaults. We conducted a randomized controlled trial with train stations exposed to the highest recorded assault rates against staff in England and Wales. Treatment members of staff were equipped with BWCs and control staff were unexposed to BWCs. Official records of assaults against treatment and control staff as well as against any employee at the station complexes are used as outcome measures. Results suggest 47% significant overall reduction in the odds of assaults against BWCs-equipped staff at treatment versus controls locations—or approximately two versus four assaults, on average, per station. In addition, we found a 26% significant reduction in assaults against all employees in the treatment versus control station complexes—9 versus 12 assaults, on average, per station—suggesting that BWCs have a spatial diffusion of benefits effects. We estimate that BWCs can reduce at least 3,000 working days per year lost because of physical violence at work. We conclude that BWCs provide substantial benefits for staff health and safety to those who are equipped with the devices as well as to staff in the vicinity of BWC-equipped employees.

scholarly journals Expectations and desires of palliative health care personnel concerning their future work culture

2013 ◽  
Vol 2 (3) ◽  
pp. 46 ◽  
Author(s):  
Beate Andre ◽  
Endre Sjøvold ◽  
Marte Holmemo ◽  
Toril Rannestad ◽  
Gerd I. Ringdal
Keyword(s):  
Health Care ◽  
Reference Group ◽  
Health Care Personnel ◽  
Future Perspective ◽  
Work Culture ◽  
Care Workers ◽  
Positive Work Culture ◽  
And Control ◽  
Future Work ◽  
Positive Work

Introduction: Exploring the work culture of health care personnel is important in order to understand the challenges they face and the issues they experience. Believing in and shaping their futures indicates a working culture influenced by promoting factors. The aims of this study were to explore how health care workers at a Palliative Medicine Unit perceive their future work culture would be and whether they perceive that their expectations and desires will be fulfilled. Design: A correlational study. Methods: Health care personnel, physicians, nurses, physiotherapists, and others (N = 26) at a PMU in Norway completed a questionnaire according to the two perspectives, expectations (future) and desire (wish). The findings in these two perspectives were compared. The method seeks to explore what aspects dominate the particular work culture and identifying challenges, limitations, and opportunities. The findings were also compared with a reference group of 347 ratings of well-functioning Norwegian organizations, named the “Norwegian Norm”. Results: The findings for the wish perspective showed significant (p<0.05; p<0.01) higher rates for nurturing and synergy dimensions and significant lower rates (p>0.05; p>0.05) for opposition and control dimensions than the findings for the future perspective. Conclusions: It appears that the health care personnel wish for changes that they don’t believe they will achieve. The changes the respondents wish for are fewer negative work culture qualities, such as assertiveness and resignation, and more positive work culture qualities, such as engagement and empathy. Changes must be made to give the health care personnel improved working conditions and empowerment in order to change their situations to reflect what they wish for. The present findings can give an indication as to the direction that research ought to follow in subsequent studies.

scholarly journals HONG KONG SAR IMMIGRATION IN THE DYNAMICS OF POLITICS, POLICY AND INSTITUTION

2018 ◽  
Vol 1 (2) ◽  
pp. 69-81
Author(s):  
Andry Indrady
Keyword(s):  
Hong Kong ◽  
Transition Period ◽  
Executive Power ◽  
Power Domination ◽  
The Public ◽  
Hong Kong Sar ◽  
British Colonial ◽  
The Government ◽  
Colonial Government ◽  
And Control

The Bureaucratic System of the Immigration Department of Hong Kong SAR is one of the legacies from British Colonial Government seen from legal and also immigration bureaucratic perspectives reflect the executive power domination over immigration policymaking. This is understandable since Hong Kong SAR adopts “Administrative State Model” which means Immigration Officer as a bureaucrat holds significant roles at both stages of policymaking and also its implementation. This research looks at transition period of the Immigration Department and its policies since the period of handover of Hong Kong SAR from the British Government to the Government of China especially throughout the concern from the public including academics about the future of immigration policies made by the Department that arguably from colonial to current being used as political and control tools to safeguard the interest of the Ruler. This situation ultimately will question the existence of Hong Kong SAR as one of the International Hub in the Era of Millennium.  

scholarly journals An analysis on the statistics of occupational accidents in Turkish fisheries and aquaculture sector; 2013-2019 period

2021 ◽  
Vol 38 (4) ◽  
pp. 533-544
Author(s):  
Ozan Soykan
Keyword(s):  
Incidence Rate ◽  
Health And Safety ◽  
Occupational Accidents ◽  
Accident Frequency ◽  
General Evaluation ◽  
Occupational Risks ◽  
Work Accident ◽  
Work Accidents ◽  
And Control ◽  
Incident Rates

This study was carried out to make a holistic evaluation on the occupational health and safety (OHS) of fisheries and aquaculture sector with its subsectors and to reveal the actual situation of fisheries and aquaculture sector by comparing relevant OHS statistics reported in Turkey. Annual average of accidents in the fisheries and aquaculture sector was found to be 312 (± 147.6), of which 2.14 (± 1.57) resulted in permanent incapacity and 1.57 (± 1.51) of them with fatality. While general incidence rate, fatal incidence rate, permanent incapacity incidence rate and work accident frequency rate were calculated as 2211.8 (±574) 103.6 (±13.4), 5.88 (±2.41) ve 8.36 (±1.93), these values for fisheries and aquaculture sector were determined to be 3579.1 (±1549.3) 175.65 (±152.34), 240.67 (154.62) ve 13.65 (±5.84), respectively. In 2019, the fatal accident rate in Turkey was found to be 0.27% in general, 0.34% in the mining sector, 0.77% in construction and 0.80% in transportation. This ratio was calculated as 1% in the fisheries and aquaculture sector. It was determined that there were more work accidents and fatal incidents in fisheries and aquaculture activities in the seas than in fresh water. Difference between number of work accidents and the duration of temporary incapacity as a result of work accidents in fisheries and aquaculture activities in marine and fresh waters were also significant (p<0.05). Number of fatal accidents in aquaculture sector was found to be more than 4 times than in fisheries. It was determined that the all types of incident rates, work accident frequency rates and fatality rates per work accident in fisheries and aquaculture sector were higher than that of Turkey in general. Evaluation of occupational accidents in the fisheries and aquaculture activity was found to be riskier than expected. Although some evaluations and suggestions are put forward to reduce the number of accidents and the severity of these accidents, a systematic and legislative approach will be more effective. Therefore, it would be a suitable approach to raise the hazard classes of fisheries and aquaculture economic activity to the “very dangerous” class. In this way, the training period of the sector employees on occupational risks and the titles and numbers of OHS professionals working in the sector will be increased, a more qualified specialization will be realized, and control and audit activities will be more frequent.

Sign in / Sign up

Export Citation Format

Share Document