Human reliability test and identification of HCR model basic parameters for multi-factor “Meta-Operation”

2014 ◽  
pp. 1025-1032
Keyword(s):  
Reliability Test ◽  
Human Reliability ◽  
Basic Parameters ◽  
Meta Operation ◽  
Hcr Model

Models of comets with strongly variable nongravitational effects

1999 ◽  
Vol 173 ◽  
pp. 381-387
Author(s):  
M. Królikowska ◽  
G. Sitarski ◽  
S. Szutowicz
Keyword(s):  
Cometary Nucleus ◽  
Spin Axis ◽  
Reactive Force ◽  
Orbital Elements ◽  
Cometary Nuclei ◽  
Short Period ◽  
Basic Parameters ◽  
Polar Radius ◽  
Cometary Activity ◽  
Nongravitational Effects

AbstractThe nongravitational motion of five “erratic” short-period comets is studied on the basis of published astrometric observations. We present the precession models which successfully link all the observed apparitions of the comets: 21P/Giacobini-Zinner, 31P/Schwassmann-Wachmann 2, 32P/Comas Solá, 37P/Forbes, and 43P/Wolf-Harrington. We used the Sekanina's forced precession model of the rotating cometary nucleus to include the nongravitational terms into equations of the comet's motion. Values of six basic parameters (four connected with the rotating comet nucleus and two describing the precession of spin-axis of the nucleus) have been determined along the orbital elements from positional observations of the comets. The solutions were derived with additional assumptions which introduce instantaneous changes of modulus of reactive force,Aand of maximum of cometary activity with respect to perihelion time. The present precession models impose some contraints on sizes and rotational periods of cometary nuclei. According to our solutions the nucleus of 21P/Giacobini-Zinner with oblateness along the spin-axis of about 0.32 (equatorial to polar radius of 1.46) is the most oblate among five investigated comets.

Human reliability analysis for control room upgrades

2009 ◽  
Author(s):  
Ronald Laurids Boring ◽  
Johanna Oxstrand ◽  
Michael Hildebrandt
Keyword(s):  
Reliability Analysis ◽  
Control Room ◽  
Human Reliability ◽  
Human Reliability Analysis

RELIABILITY TEST PLANS BASED ON EXPONENTIATED RAYLEIGH DISTRIBUTION

2018 ◽  
Vol 43 (1) ◽  
pp. 89-100
Author(s):  
B. SRIRAM ◽  
◽  
R.R.L. KANTAM ◽  
Keyword(s):  
Rayleigh Distribution ◽  
Reliability Test

Participants of the Global Oil Market

2003 ◽  
pp. 123-135
Author(s):  
D. Kokurin ◽  
G. Melkumov
Keyword(s):  
Asia Pacific ◽  
Oil Market ◽  
Oil Corporations ◽  
The Usa ◽  
Basic Parameters

The article deals with the leading participants of the global oil market and examines its basic parameters in 2002. The authors point out such demand-creating countries as the USA, the EU15 and the Asia Pacific, discuss their specifics as oil-consuming countries and their ability to influence the global oil market. The supply is provided by OPEC countries, US oil corporations and partly independent oil producers.

Monetary policy regimes in Russia: Guidelines for furtherquantitative studies

2017 ◽  
pp. 38-60 ◽  
Author(s):  
A. Pestova
Keyword(s):  
Monetary Policy ◽  
Exchange Rate ◽  
Interest Rates ◽  
Quantitative Research ◽  
Policy Regimes ◽  
Policy Effects ◽  
Exchange Rate Targeting ◽  
Basic Parameters

This paper analyzes the basic parameters of monetary policy in 2000-2015 in Russia. We provide the overview of tools and objectives of monetary policy of the Bank of Russia and identify the periods of homogeneity of monetary policy regimes: from money base targeting to exchange rate targeting and finally, to interest rates policy. On the basis of this research we develop the recommendations for further quantitative research aimed at estimation of monetary policy effects in Russia.

Persepsi Dan Partisipasi Pengunjung Terhadap Permasalahan Sampah Laut (Marine Debris) Di Pantai Temberan Kabupaten Bangka Dan Pantai Pasir Padi Pangkalpinang

2020 ◽  
Vol 3 (1) ◽  
pp. 11-20
Author(s):  
Siska Oktavia ◽  
Wahyu Adi ◽  
Aditya Pamungkas
Keyword(s):  
Data Collection ◽  
Random Sampling ◽  
Sampling Technique ◽  
Marine Debris ◽  
Reliability Test ◽  
Validity Test ◽  
Data Collection Technique ◽  
Mixed Approach ◽  
Relationship Of ◽  
The Relationship

This study aims to analyze the value of the density of marine debris, perceptions and participation in Temberan beach and Pasir Padi beach, as well as determine the relationship of perception and participation to the density of marine debris. This research is a type of research that is descriptive with a mixed approach (quantitative and qualitative). The study was conducted at Temberan beach in Bangka Regency and Pasir Pasir Beach Pangkal Pinang in October 2019. The sampling technique used was random sampling and purposive sampling. The data collection technique was carried out using observation technique namely sampling and questionnaire. The validity test uses the Pearson Product Moment formula and the reliability test uses the Cronbach’s Alpha formula. The results showed that the density of debris in the Temberan beach was more dominant at 10.92 pieces/meter2, while at Temberan beach 3 pieces/meter2. The results of perception and participation are different, with the Temberan beach occupying more complex waste problems. The relationship of perception and participation in the density of marine debris have a relationship that affects each other.

Improvement Of The Method Of Winter Concreting With The Use Of Heating Wires

2019 ◽  
pp. 51-58
Keyword(s):  
Harmful Effect ◽  
Electric Heating ◽  
Strength Development ◽  
Construction Sites ◽  
Dominant Position ◽  
Heating Wire ◽  
Hands On ◽  
Basic Parameters ◽  
Monolithic Structures

Long-term experience of application of a method of electric heating by heating wires of the monolithic concrete and reinforced concrete structures erected in winter conditions is analyzed. This method, developed by the author of the article, took a dominant position on the construction sites due to the simplicity and efficiency in comparison with the mass applied in those years, the method of electric heating of concrete with steel round and strip electrodes. The data on labor intensity, material and energy costs in comparison with the method of rod electric heating are presented. Step-by-step technological operations on preparatory works and electric heating of monolithic structures with the use of extensive hands-on material, which formed the basis for the development of technological regulations, supplemented by a number of new proposals to improve the technology of works, are concretized. In order to work out the optimal mode of heat treatment, the studies of the concrete thermal conductivity factor in the process of its heating and strength development were carried out. The method for calculation of the basic parameters of concrete electric heating is presented. For simplification of calculations, for a wide contingent of masters, superintendents and technical personnel, the nomogram , making it possible with sufficient accuracy under the construction conditions to calculate the necessary heating parameters, was developed. The necessity of grounding the heating wire remaining in the concrete to reduce the harmful effect of magnetic radiation from various appliances and household appliances on the human body is noted.

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