scholarly journals Method of Modelling a Tank with Ribbing using a Spatial Scanner for Optimized Control of Volume Characteristics

2021 ◽  
Vol 1199 (1) ◽  
pp. 012064
Author(s):  
T Krenicky ◽  
L Straka
Keyword(s):  
Practice Volume ◽  
Progressive Method ◽  
Technical Documentation ◽  
3D Scanner ◽  
Technical Standards ◽  
Flow Meters ◽  
Time Consumption ◽  
Energy Consuming ◽  
Internal Volume ◽  
Volume Characteristics

Abstract Increasing requirements for product quality, whether from the side of technical standards or customers, generate demands on the optimization of measurement and data evaluation processes, which include also dimensional characteristics. The paper deals with determining the volume of the tank of a railway wagon with ribbing. In practice, volume flow meters are usually used to measure the internal volumes of manufactured tanks, which measure the volume of water when filled with water. The method is not only time-consuming but also energy-consuming and generates a large amount of wastewater. Therefore, these obsolete methods are gradually being replaced by those that allow effective inspection of tank wagon dimensions according to the technical documentation. The topic of the paper is a description and verification of the design of a progressive method of determining the internal volume of the tank using a spatial 3D scanner Faro FocusS150 and software processing of measured data. At the same time, verification of compliance with the requirements for the accuracy of determining the internal volume of the tank is presented. The aforementioned methods are therefore compared in terms of accuracy, complexity and time consumption.

scholarly journals Usage of the influence coefficient during calculation of a nominal error of gas counters

2019 ◽  
Vol 298 ◽  
pp. 00009
Author(s):  
M.S. Ostapenko ◽  
M.A. Popova ◽  
A.M. Tveryakov
Keyword(s):  
Relative Error ◽  
Gas Flow ◽  
Oil And Gas ◽  
Great Influence ◽  
Operating Conditions ◽  
Effect Of Temperature ◽  
Influence Coefficient ◽  
Technical Documentation ◽  
Flow Meters ◽  
Influence Coefficients

In this paper, we evaluate the method of finding the relative error of gas flow meters taking into account the influence coefficients. A literature analysis was carried out, which showed that flow meters are used at oil and gas enterprises, which show its metrological characteristic, showing specific values of gas flow in operating conditions. Various types of gas flow meters are considered, with a description of the quality indicators of the devices. An additional error was investigated depending on changes in operating conditions. The calculations of the relative error of the meter taking into account the limiting values of the additional errors indicated in the technical documentation, as well as calculations taking into account the coefficients of influence under operating conditions. Based on the obtained values of the influence coefficients, graphs were constructed on which the effect of temperature and pressure on the error was determined. The article provides tabular values of the influence coefficients for petroleum gas, a conclusion is drawn on the applicability of this method.Oil and gas industry have a great influence on development of national economy in our country. Oil and gas have a leading position in energy industry and they are more effective and energy-intense in comparison with other natural substances.

scholarly journals EXPERIMENTAL TESTING OF PASSIVE INFRARED DETECTORS AND EXAMINING THE PROBABILITY OF INTRUDER DETECTION

2018 ◽  
Vol 6 ◽  
pp. 1139-1143
Author(s):  
Michal Peňaška ◽  
Milan Kutaj
Keyword(s):  
Protected Area ◽  
Infrared Detectors ◽  
Experimental Testing ◽  
Technical Documentation ◽  
Technical Standards ◽  
Testing Laboratories ◽  
Intruder Detection ◽  
Alarm Systems ◽  
Motion Detectors ◽  
Passive Infrared

The article describes intruder alarm systems, experimental testing of selected components of these systems, and examining the probability of intruder detection in a protected area. Component parameters are specified in the producer technical documentation (datasheets, service manuals) and they have to comply with European technical standards. Specifically, the article focuses on passive infrared motion detectors, which are among the most used components of intruder alarm systems. Experiments were carried out under the conditions specified in the European technical standards and also beyond these conditions. The experiments were performed in controlled measuring and testing laboratories. The results of the experiments can be used as a basis for improving the European technical standards, a proposal for their modification, and also for the evaluation of intruder alarm systems.

Job Validation Studies and Physical Agility Testing: Is the Vendor Telling You What They Think You Want or Are You Telling Them What You Need?

2016 ◽  
Vol 21 (6) ◽  
pp. 5-11
Author(s):  
E. Randolph Soo Hoo ◽  
Stephen L. Demeter
Keyword(s):  
Equal Employment Opportunity Commission ◽  
Job Analysis ◽  
Specific Work ◽  
Test Protocol ◽  
Systematic Method ◽  
Technical Standards ◽  
Work Related ◽  
Physical Abilities ◽  
Specific Factors ◽  
Key Terms

Abstract Referring agents may ask independent medical evaluators if the examinee can return to work in either a normal or a restricted capacity; similarly, employers may ask external parties to conduct this type of assessment before a hire or after an injury. Functional capacity evaluations (FCEs) are used to measure agility and strength, but they have limitations and use technical jargon or concepts that can be confusing. This article clarifies key terms and concepts related to FCEs. The basic approach to a job analysis is to collect information about the job using a variety of methods, analyze the data, and summarize the data to determine specific factors required for the job. No single, optimal job analysis or validation method is applicable to every work situation or company, but the Equal Employment Opportunity Commission offers technical standards for each type of validity study. FCEs are a systematic method of measuring an individual's ability to perform various activities, and results are matched to descriptions of specific work-related tasks. Results of physical abilities/agilities tests are reported as “matching” or “not matching” job demands or “pass” or “fail” meeting job criteria. Individuals who fail an employment physical agility test often challenge the results on the basis that the test was poorly conducted, that the test protocol was not reflective of the job, or that levels for successful completion were inappropriate.

Mathematical simulation of error functions of decision-making at tolerance control of measuring techniques availability

Metrologiya ◽  
2020 ◽  
pp. 3-15
Author(s):  
Rustam Z. Khayrullin ◽  
Alexey S. Kornev ◽  
Andrew A. Kostoglotov ◽  
Sergey V. Lazarenko
Keyword(s):  
Measurement Error ◽  
Geometric Interpretation ◽  
Measuring Instruments ◽  
Measured Quantity ◽  
Metrological Examination ◽  
Technical Documentation ◽  
Error Functions ◽  
Measuring Techniques ◽  
Tolerance Control ◽  
Laws Of Distribution

Analytical and computer models of false failure and undetected failure (error functions) were developed with tolerance control of the parameters of the components of the measuring technique. A geometric interpretation of the error functions as two-dimensional surfaces is given, which depend on the tolerance on the controlled parameter and the measurement error. The developed models are applicable both to theoretical laws of distribution, and to arbitrary laws of distribution of the measured quantity and measurement error. The results can be used in the development of metrological support of measuring equipment, the verification of measuring instruments, the metrological examination of technical documentation and the certification of measurement methods.

From Craft to Institution: Accounting in Italy from the Middle ages to the Early Modern Period

2012 ◽  
pp. 135-152 ◽  
Author(s):  
O. Volkova
Keyword(s):  
Early Modern ◽  
Middle Ages ◽  
Social Economic ◽  
Early Modern Period ◽  
Social Institution ◽  
Business Environment ◽  
Technical Standards ◽  
Medieval Italy ◽  
Modern Period ◽  
Professional Field

The article describes the evolution of accounting from the simple registration technique to economic and social institution in medieval Italy. We used methods of institutional analysis and historical research. It is shown that the institutionalization of accounting had been completed by the XIV century, when it became a system of codified technical standards, scholar discipline and a professional field. We examine the interrelations of this process with business environment, political, social, economic and cultural factors of Italy by the XII—XVI centuries. Stages of institutionalization are outlined.

Partisipasi Masyarakat dalam program pembangunan Infrastruktur Perdesaan (PPIP)

2020 ◽  
Vol 1 (1) ◽  
pp. 45-60
Author(s):  
Lina Kumala Dewi ◽  
Bambang Triono ◽  
Dian Suluh Kusuma Dewi
Keyword(s):  
Development Program ◽  
Study Data ◽  
Community Empowerment ◽  
Infrastructure Development ◽  
Development Programs ◽  
Technical Documentation ◽  
Rural Infrastructure ◽  
High Participation ◽  
Qualitative Descriptive ◽  
Household Heads

The construction of public participation has paid his dues. This is that in realizing development projects readily undergoing a failure that empowers people. Related in all process that deals with planning, implementation, the use of results and development monitoring. The rural infrastructure development program (PPIP) is development programs community empowerment. Where people have got to dive headlong in village development, especially physical development he purposes of this research is to find how the participation of the community in the Rural infrastructure development program (PPIP), Ngranget Village, Dagangan District, Madiun Regency. The kind of research is qualitative descriptive. In research, this is the population is the number of household heads involved in the delivery rabat concrete development in Ngranget village which consisted of 95 KK. The majority of informants interviewed in this research was 12 people. Was used in the study data collection method that is Technical Documentation interviews and data available for analysis namely described the results of research or data with a form of what is he got writer whether it is the results of the interviews, or result in appreciating documentation then investigated and the studies of the issue and. The result that the community participation in development in the village of rabat concrete Ngranget mind (planning), low participation in the form of energy high, participation in the form of expertise, quite low in the form of goods low, the form of money and participation is very low.

SYSTEMIC CAUSES OF THE APPEARANCE OF “COBRA EFFECT” IN THE MANAGEMENT OF SOCIO-ECONOMIC DEVELOPMENT

2019 ◽  
Vol 86 (3) ◽  
pp. 51-61
Author(s):  
M. S. Mokiy ◽  
E. K. Borzenko
Keyword(s):  
Economic Development ◽  
Economic System ◽  
Gross National Product ◽  
The Family ◽  
Social And Economic Development ◽  
Socio Economic Development ◽  
Energy Consuming ◽  
The Right ◽  
Goals And Objectives ◽  
Least Energy

The article on the basis of extrapolation of system laws of management of social and economic development illustrates the system reason of the Cobra effect, that is, a situation where, despite the rather attractive goals that managers formulate, the result of the activities of subordinates is opposite to what was intended. The main problem of management is the development of a system of indicators, in which, working on the indicator, employees would change the state in the right direction. The reason for the Cobra effect is the manifestation of systemic patterns of socio-economic development. The main system regularity is the desire of the system for stability and self-preservation. This state of the system is achieved using the least energy-consuming way. It is shown that any worker, realizing system regularities, aspires to stability and self-preservation. Therefore, the employee is always forced to work for achieving the indicator. The article analyzes the manifestation of these laws at the level of enterprises and state. When managers understand these patterns explicitly or covertly, changes in the economic system are moving in the right direction. It is shown that the existing system of target indicators used as indicators to assess the effectiveness of management does not meet the goals and objectives of socio-economic development. At the meso- and macrolevel, absolute, volumetric indicators, such as gross national product and others, reduce the range of benefits to the population. The article defines the vector of change in the system of indicators for assessing the effectiveness of management at the regional and state levels, based on the fact that the key element is the family. At the same time, the targets should be indicators to assess the availability of benefits for households.

Translucent Glass Roofs For Large-Span Coverings

2019 ◽  
pp. 23-28
Keyword(s):  
Warm Season ◽  
Natural Light ◽  
Labor Costs ◽  
Main Bearing ◽  
Large Span ◽  
Glass Panels ◽  
Technical Properties ◽  
Internal Volume ◽  
Basic Approaches ◽  
Smoke Removal

The article deals with the issues of glass use in the enclosing structures of large-span coverings, which have such advantages as ensuring the penetration of natural light, tightness, minimum labor costs for repair and maintenance. Design shortcomings: the high cost, the need for protection of the internal volume against the penetrating sun rays in the warm season (hothouse effect); arrangement of devices for operation of a roof. The key technical properties and characteristics of glass panels and pane-glass sets, constructive decisions, including interface to the main bearing structures of a large-span covering are given. Peculiarities of their design with due regard for ventilation and smoke removal, a drainage of condensate, ways of fight against frosting and snow drifts on the roof are reflected. Features of the account of loadings, the basic approaches to their calculation are considered. Various design solutions for the spatial metal trussed systems with the original nodal connections are presented. Information on modern solutions of translucent roofs using glass for large-span coverings is given.

Cryopreservation to be a progressive method for keeping up valuable strains of lactic acid bacteria and yeasts

2014 ◽  
pp. 112-119 ◽  
Author(s):  
O.A. Savkina ◽  
◽  
G.V. Ternovskoi ◽  
M.N. Lokachuk ◽  
E.N. Pavlovskaya ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Progressive Method
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