Reaction of Cardiopulmonary Parameters and Lactate During Submaximum and Maximum Work Loads Depending on Different Tests and Input Loads

1984 ◽  
pp. 229-235
Author(s):  
A. Reinke ◽  
H. Heck ◽  
R. Rost
Keyword(s):  
Maximum Work

The Energy of the Electrostatic Field

2020 ◽  
Vol 67 (1) ◽  
pp. 35-41
Author(s):  
Igor’ P. Popov
Keyword(s):  
Electrostatic Field ◽  
Energy System ◽  
Electrostatic Energy ◽  
Research Purpose ◽  
Target System ◽  
Mathematical Form ◽  
Stored Energy ◽  
Energy Materials ◽  
Modeling And Analysis ◽  
Maximum Work

The work is actual due to the increased role of electrostatic energy in connection with the beginning of mass production of ionistors used in the power supply system of electric vehicles, and the need for the development of theoretical support. (Research purpose) The research purpose is in increasing the correctness of electrostatic calculations that exclude the possibility of obtaining unreliable results in the form of infinite electrostatic energy. (Materials and methods) Authors have used methods of mathematical modeling and analysis, studied the mathematical model as the equivalent of an object that reflects in mathematical form its most important properties, such as the laws that it obeys, and the relationships inherent in its constituent parts. (Results and discussion) Authors have studied the electrostatic field created by a system of two charges of the same name or different names. The article presents calculations for charges located in bodies that have the shape of balls. It was found that the results could be generalized to any form of charged objects. They gave three definitions: first, the total stored energy is the energy of the system or object, equal to the maximum work that the system or object can do if it is given such an opportunity. Second, the conditional realized stored energy is a part of the total stored energy of the system or object, equal to the work that the system or object can produce, limited by a condition that excludes the possibility of the system or object performing the maximum work that the system or object can hypothetically perform. The third is a conditional impossible reserved energy as a part of a complete stored energy system or an object that is equal to the work system or object can do and limited by the condition, which excludes the possibility of making a system or object maximum work that target system or object could hypothetically do. Five theorems were proved. (Conclusions) It was found that the main drawback of the actual potential energy formula is an infinitely large increase in energy at radius tending to 0. The obtained formulas for stored electrostatic energy are devoid of this drawback.

scholarly journals Overcoming the water oxidative limit for ultra-high-workfunction hole-doped polymers

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Qi-Mian Koh ◽  
Cindy Guanyu Tang ◽  
Mervin Chun-Yi Ang ◽  
Kim-Kian Choo ◽  
Qiu-Jing Seah ◽  
...  
Keyword(s):  
Organic Semiconductors ◽  
Water Oxidation ◽  
Soft Materials ◽  
Bulk Water ◽  
Oxidation Potential ◽  
Doped Semiconductors ◽  
Good Thermal Stability ◽  
Doped Polymers ◽  
Super Acid ◽  
Maximum Work

AbstractIt is widely thought that the water-oxidation reaction limits the maximum work function to about 5.25 eV for hole-doped semiconductors exposed to the ambient, constrained by the oxidation potential of air-saturated water. Here, we show that polymer organic semiconductors, when hole-doped, can show work functions up to 5.9 eV, and yet remain stable in the ambient. We further show that de-doping of the polymer is not determined by the oxidation of bulk water, as previously thought, due to its general absence, but by the counter-balancing anion and its ubiquitously hydrated complexes. The effective donor levels of these species, representing the edge of the ‘chemical’ density of states, can be depressed to about 6.0 eV below vacuum level. This can be achieved by raising the oxidation potential for hydronium generation, using large super-acid anions that are themselves also stable against oxidation. In this way, we demonstrate that poly(fluorene-alt-triarylamine) derivatives with tethered perfluoroalkyl-sulfonylimidosulfonyl anions can provide ambient solution-processability directly in the ultrahigh-workfunction hole-doped state to give films with good thermal stability. These results lay the path for design of soft materials for battery, bio-electronic and thermoelectric applications.

scholarly journals DISIPLIN KERJA, KESEHATAN DAN KESELAMATAN KERJA BERPENGARUH TERHADAP PRODUKTIVITAS KERJA KARYAWAN SARIASIH GARMENT

2020 ◽  
Vol 9 (6) ◽  
pp. 2107
Author(s):  
Briyan Artha Ginting ◽  
I Wayan Suana
Keyword(s):  
Occupational Health ◽  
Work Environment ◽  
Work Productivity ◽  
Health And Safety ◽  
Work Safety ◽  
Safe Work ◽  
Work Health ◽  
Saturated Sample ◽  
Maximum Work ◽  
Sample Method

Productivity is the ability to achieve certain tasks in accordance with predetermined standards. Companies must create safe work environment to motivate employees so that they can increase overall company productivity. Purpose of the study is to explain the effect of work discipline, occupational health and safety on the work productivity of Sariasih Garment employees with 51 people as samples, using saturated sample method. Data collected through observation, interviews and questionnaires and analyzed by multiple linear regression. Based on the results, work discipline, occupational health and work safety have  positive and significant effect on employee work productivity. It is expected that company pays attention to employees' compliance with regulations in doing their jobs and the company is able to create a safe, comfortable and clean work environment. Employees have enthusiasm and protection while working so that employees are able to increase work productivity in order to create maximum work results. Keywords: work productivity, work discipline, work health and safety

Comparative Thermodynamics for Brayton and Rankine Cycles

1990 ◽  
Vol 112 (1) ◽  
pp. 94-99 ◽  
Author(s):  
E. W. Beans
Keyword(s):  
Thermodynamic Model ◽  
Thermal Efficiency ◽  
Unit Volume ◽  
Work Conditions ◽  
Comparison Analysis ◽  
Independent Variables ◽  
Equal Work ◽  
Maximum Work ◽  
Cycle Temperature ◽  
Selection Of

The thermal efficiency, work per unit mass, and work per unit volume of the simple Rankine and Brayton cycles are expressed in terms of seven independent variables using a simplified thermodynamic model. By requiring equal efficiency, equal work conditions, and the same maximum cycle temperature for both cycles, two necessary relationships are established between the seven independent variables. These two relationships along with two maximum work conditions produce a method for comparing required and selected properties. These comparisons provide useful guidelines for the selection of the cycle and cycle fluids. The comparison analysis shows that for a given application the more attractive cycle is strongly dependent upon the fluids selected.

scholarly journals Maximum work from a finite reservoir by sequential Carnot cycles

1981 ◽  
Vol 49 (7) ◽  
pp. 681-685 ◽  
Author(s):  
Mary Jo Ondrechen ◽  
Bjarne Andresen ◽  
Michael Mozurkewich ◽  
R. Stephen Berry
Keyword(s):  
Maximum Work

CARDIOVASCULAR CHANGES IN NON-SENSITIZED RATS CHRONICALLY TREATED WITH 2-METHYL-9-FLUOROCORTISOL

1961 ◽  
Vol 39 (2) ◽  
pp. 335-341 ◽  
Author(s):  
P. Bois ◽  
Margaret Beznák ◽  
G. Jasmin
Keyword(s):  
Cardiac Hypertrophy ◽  
Cardiac Function ◽  
Dietary Supplements ◽  
Coronary Arteries ◽  
Functional Impairment ◽  
Work Capacity ◽  
Periarteritis Nodosa ◽  
Maximum Work ◽  
Cardiac Function Tests ◽  
Intact Rats

2-Methyl-9-fluorocortisol was injected into intact rats in the absence of NaCl dietary supplements during 8 months. All animals became hypertensive and developed myocarditis, nephrosclerosis, and periarteritis nodosa. There were marked cardiac hypertrophy and arteriolosclerosis of the coronary arteries. Evaluation of the basic and maximum work capacity of the heart revealed that the myocardium was functionally equivalent in the control and treated animals. Consequently, sensitization by the intake of large amounts of NaCl is not indispensable for the production of hypertension and cardiovascular lesions with 2-methyl-9-fluorocortisol. In addition, as revealed by the cardiac function tests used, there is no strict parallelism between histologic and functional impairment of the heart.

Prediction of the Initial Crack Tip Microstructure in a Single Crystal of CuAlNi

1999 ◽  
Author(s):  
Galyna M. Vasko ◽  
Perry H. Leo ◽  
Thomas W. Shield
Keyword(s):  
Stress Field ◽  
Single Crystal ◽  
Crack Opening ◽  
Crack Tip ◽  
Initial Crack ◽  
Single Edge ◽  
Opening Displacement ◽  
Elastic Crack ◽  
Maximum Work ◽  
Anisotropic Elastic

Abstract The austenite to martensite pseudoelastic transformation induced by the anisotropic elastic crack tip stress field in a single crystal of shape memory alloy is considered. It is proposed that the orientation of the initial austenite-martensite interface that forms can be predicted based on knowledge of the stress field, the crystallography of the transformation and one of two selection criteria. These criteria are based on the work of formation of the martensite in stress field and the crack opening displacement the martensite causes at the crack. Predictions of the criteria are compared to experiments on three single edge notched CuAlNi single crystal specimens. Results indicate that the maximum work criterion accurately predicts the orientation of the austenite-martensite interfaces that initially form near a crack.

scholarly journals Analysis of factors influencing Work Motivation

2016 ◽  
Vol 7 (1) ◽  
pp. 35
Author(s):  
Muhammad Immanullah
Keyword(s):  
Self Efficacy ◽  
Work Motivation ◽  
Simple Random Sampling ◽  
Primary Data ◽  
Paradigm Change ◽  
Extrinsic Reward ◽  
Organization Management ◽  
Mediating Variables ◽  
Maximum Work ◽  
Job Specification

The objective of this research is to understand if there is influence from mission valence, extrinsic reward toward job difficulty, and job specificity to the mediating variables of job importance and self efficacy in order to increase work motivation on employees of PT Margacipta Wirasentosa in Tangerang, Banten. The research used primary data, simple random sampling in data collection, and multiple regression data analysis method. The result shows that mission valence, extrinsic reward toward job difficulty, and job specificity to the mediating variables of job importance and self efficacy significantly influence work motivation on employees of PT Margacipta Wirasentosa in Tangerang, Banten. Mission socialization is important in order to increase employees work motivation to achieve organization goal. Paradigm change on how job importance is perceived, not only from materials but also rewards, is a must. In order to achieve maximum work result, organization management and eployees must do self-introspection, and understand their capability and skill. In order to force down the gap between employee's capability, skill, and job specification, an excellent job design is a must.

scholarly journals Management of industrial work practices in improving student competence and satisfaction of the industrial as a partner vocational school

2021 ◽  
Vol 6 (2) ◽  
pp. 552
Author(s):  
Silvana Wulansari
Keyword(s):  
Work Practice ◽  
Vocational School ◽  
Work Culture ◽  
Work Practices ◽  
Business World ◽  
Industrial Work ◽  
Implementation Guidelines ◽  
Maximum Work ◽  
Planning Implementation

This study describes the planning, implementation, and evaluation of industrial work practices in improving student competence and satisfaction of the industrial world as a working partner of a vocational school. The implementation of industrial work practices is in following the dual system education implementation guidelines. Management of industrial work practices from planning, implementation, and evaluation is still experiencing obstacles. The results of the satisfaction survey show that the competence of students is not in by the needs and work culture of the industry, school supervisors are not maximized in monitoring the development and progress of students in the industry, there are still many students who are not competent in operating computers, the industry assignments to students that are not in following the competence of expertise in their field so that the objectives in competency mapping have not been achieved. School supervisors have not completely informed about the involvement of the industrial world business world in the implementation of industrial work practices. Practical work provides additional knowledge and skills of students so that competency gaps in the mapping of competency skills can be minimized, but these competencies do not yet cover the entire competency gap. The implementation of work practice for 3 (three) months is quite effective, because with this duration students perform certain tasks repeatedly to improve student competence in completing assignments and maximum work results, however, it was still found that students were not responsive enough in other assignments given. The evaluation of industrial work practice management with the analysis that has been carried out so far is quite good, but the follow-up actions have not provided an improvement in the performance of the management team as a whole so that the mismatches keep recurring in the implementation of the next work practice.

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