scholarly journals Analysis of aerosol pollution processes in the vicinity of the Irkutsk aluminum plant

2021 ◽  
Vol 2099 (1) ◽  
pp. 012030
Author(s):  
V F Raputa ◽  
V I Grebenshchikova ◽  
A A Lezhenin ◽  
T V Yaroslavtseva ◽  
R A Amikishieva
Keyword(s):  
Quality Control ◽  
Surface Layer ◽  
Snow Cover ◽  
Fluoride Content ◽  
Control Points ◽  
Numerical Reconstruction ◽  
Industrial Enterprises ◽  
Aluminum Plant ◽  
Aerosol Pollution ◽  
Parameter Reconstruction

Abstract The issues of assessing the pollution fields in the vicinity of industrial enterprises are discussed according to the monitoring studies of the snow cover. The formulations of problems of low-parameter reconstruction of concentration fields are considered on the basis of model descriptions of the processes of transport of impurities in the surface layer of the atmosphere. With regard to the Irkutsk aluminum plant, the results of studies of the pollution of its surroundings with aluminum are presented. Using the data of route observations, a numerical reconstruction of the fluoride content in the snow cover was carried out. The quality control of the results obtained is carried out by comparing the measured and calculated concentrations of impurities at the control points of observation.

scholarly journals Monitoring of Aerosol Pollution of Snow Cover with Ground Based Observation Data and Satellite Information

2016 ◽  
Vol 9 (7) ◽  
pp. 950-959
Author(s):  
Anatoly A. Lezhenin ◽  
◽  
Tatyana V. Yaroslavtseva ◽  
Vladimir F. Raputa ◽  
◽  
...  
Keyword(s):  
Snow Cover ◽  
Observation Data ◽  
Satellite Information ◽  
Aerosol Pollution

scholarly journals COMPARATIVE CHARACTERISTICS FOR ANTHROPOGENOUS POLLUTION OF SNOW COVER ON THE TERRITORY OF A MAJOR INDUSTRIAL CENTER UNDER THE INFLUENCE OF POLLUTION’S VARIOUS SOURCES

2019 ◽  
pp. 36-42 ◽  
Author(s):  
O.V. Sazonova ◽  
T.K. Ryazanova ◽  
D.S. Tupikova ◽  
T.V. Sudakova ◽  
N.M. Toropova ◽  
...  
Keyword(s):  
Snow Cover ◽  
Suspended Solids ◽  
Oxygen Demand ◽  
Weather Conditions ◽  
Oil Refinery ◽  
Motor Vehicles ◽  
Industrial Enterprises ◽  
Adverse Weather ◽  
Snow Water ◽  
Surrounding Areas

The paper presents the comparative studies’ results of the snow cover quality in the intracity districts of Samara and its surrounding areas at a distance of up to 1000 m from the oil refinery during 2017–2018. We have identified a high extent of pollution on a set of indicators caused by anthropo-technogenic influence (the content of hydrocarbons, suspended solids, difficult-to-oxidize organic matter (by chemical oxygen demand), some metals, etc.). Many important sanitary and hygienic indicators (a significant part of hydrocarbons, benzo[a]pyrene) were not found in filtered snow water, but ones were determined in suspended solids. Comparative analysis for the chemical composition of snow cover on the territory close to the oil refinery and on the streets in Samara revealed no significant differences. In this regard, it is possible to assume a significant contribution of motor vehicles to anthropo-technogenic environmental pollution. It is important to take into account that when snow is melting it can be a source of secondary pollution of soil, waste- and groundwater, therefore it is necessary to periodically monitor the snow cover quality as an integral part of monitoring environment state and take measures to prevent adverse effects of human activities (redistribution of traffic flow of transit heavy vehicle, notification of industrial enterprises in order to reduce noxious emissions for the period of forecasting adverse weather conditions).

Using Pattern Recognition in Decoding Hazard Analysis and Critical Control Points (HACCP) for Quality Assurance

2018 ◽  
pp. 1788-1801
Author(s):  
Rahul Bhaskar ◽  
Au Vo
Keyword(s):  
Pattern Recognition ◽  
Quality Control ◽  
Quality Assurance ◽  
Food Industry ◽  
Hazard Analysis ◽  
Control Points ◽  
Critical Control Points ◽  
Haccp System ◽  
Preliminary Research

Jack Grealish is an aspiring entrepreneur. During his undergraduate in UCLA, he worked in his father's business, which focused on selling specialized foods. He became fascinated with the food industry and find out more what it entails. His investigation has unveiled the landscape of the food industry. Furthermore, he discovered that the hazard analysis and critical control points (HACCP) system implemented in the food industry was rather disjointed and could benefit from automation. He conducted a preliminary research about current HACCP development and determine to plunge ahead. Jack ponders about the possibility of integrating different pattern recognition methodologies in HACCP processes to improve the effectiveness of overall quality control at his company.

On Steel Pipe Concrete Composite Column Construction

2013 ◽  
Vol 321-324 ◽  
pp. 259-263
Author(s):  
Hao Chen ◽  
Yi Mo
Keyword(s):  
Quality Control ◽  
Reinforced Concrete ◽  
Steel Tube ◽  
Concrete Column ◽  
Control Points ◽  
Reinforced Concrete Column ◽  
Construction Quality ◽  
Composite Column ◽  
Total Height ◽  
Practical Engineering

A landmark building is located in yuzhong zone , Chongqing . That there is 5 floors in the underground, 58 floors on the ground.And the total height is 272.4 meters. Combined with practical engineering focuses ,this paper introduces the steel tube-reinforced concrete column construction quality control points and difficulties.

Research of Correlation-Model between Qualities Attributes and Quality Control Points in Assembly Process of the Complex Product Based on Network Flow

2011 ◽  
Vol 403-408 ◽  
pp. 3015-3021
Author(s):  
Ming Zhou Liu ◽  
Zhi Biao Zhao ◽  
Zeng Qiang Jiang ◽  
Mao Gen Ge ◽  
Lin Ling ◽  
...  
Keyword(s):  
Quality Control ◽  
Formation Process ◽  
Network Flow ◽  
Hybrid Structure ◽  
Quality Attributes ◽  
Control Points ◽  
Assembly Process ◽  
Correlation Model ◽  
Complex Product ◽  
Structure Assembly

For representing the coupling relationships among various correlate elements in the formation process of assembly qualities, the mapping relations between the structure domain and the quality domain was established on the basis of analyzing the hybrid structure assembly. Through classifying the quality characteristics, the quality domain was divided into two sub-sets which are quality control points set and quality attributes set. Defining the relevant elements in the model, such as vertex, arc, etc by the theory of network flow, the coupling relations among various quality control points in the formation process of assembly qualities were reflected. According to the sequence of quality control points entering into assembly environment, their corresponding hierarchy in the model were determined, which presents the timing sexual of the formation process of assembly qualities. At last, a correlation-model between quality attributes and quality control points in the assembly process of complex product based on network flow was established, which would be the theoretical basis for the dynamic tolerance optimization of quality control points. An example of an automobile active gear axle assembly was given to demonstrate the feasibility of the correlation-model.

scholarly journals IMPROVEMENT OF SOCIO-HYGIENIC MONITORING AT WORKER’S OCCUPATIONAL CONDITIONS WITH THE USE OF PRODUCTION CONTROL

2019 ◽  
Vol 96 (4) ◽  
pp. 339-343 ◽  
Author(s):  
I. G. Eliovich ◽  
A. V. Meltser ◽  
I. Sh. Iakubova ◽  
P. R. Alloyarov ◽  
O. A. Istorik ◽  
...  
Keyword(s):  
Working Conditions ◽  
Russian Federation ◽  
Production Control ◽  
Leningrad Region ◽  
Control Points ◽  
Rights Protection ◽  
Industrial Enterprises ◽  
Critical Control Points ◽  
Consumer Rights ◽  
The Russian Federation

Introduction the aim of the study. The implementation of risk-oriented model organization of the control and supervision activities of Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing with the assessment system of potential dangerous objects requires the creation of multiannual reliable database about the occupational working conditions which must include results of the production control for enterprises of all industries of the national economics of the Russian Federation. The aim of the study was to study the effectiveness of the use of the production control (PC) results of working conditions for the provision of sanitary - epidemiological wellbeing of the population. Material and methods. The study was conducted on materials of Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing on the Leningrad region, Petrostat for 2009-2012. In analysis there were included software and PC results of working conditions in 420 industrial enterprises of various branches of the Leningrad region industry. To develop a regional model of PC program planning based on critical control points there was chosen the major refinery in the Leningrad region - Limited Liability Company “Production Association” Kirishinefteorgsintez “(LLC “PA “KINEF”). 3960 protocols of laboratory and instrumental investigation results of working conditions were made for the purpose of PC control on LLC “PA “Kinef” and 1921 protocols of PC results - on 420 industrial enterprises of the Leningrad region were analyzed. Results. The performed analysis revealed a number of problems to the application of PC results for the aim of working conditions optimization of employees, planning disease prevention program and the assessment of object’s sanitary-hygienic wellbeing. The method of critical control points (CCPs) in the planning of PC programs on the large industrial enterprises is proposed to use. On the example of “Kinef” there was shown the efficiency of the use of CCPs in order to optimize the PC programs. There was developed and implemented the regional model of the use of PC programs which allows to solve the problem of the significant increase of preventive orientation and efficiency of PC program at enterprises of all sectors of the national economy of the Russian Federation as an important element of the management of sanitary - epidemiological population wellbeing regarding to the maintenance of healthy and safe working conditions. Conclusions. Existing legal regulatory and methodological framework regulating the organization and performance of PC control and social - hygienic monitoring in the Russian Federation requires significant changes and additions what allow to increase the reliability of the objects classification on groups of sanitary-epidemiological wellbeing and to realize a risk-oriented approach to control and oversight activities.

scholarly journals Diseño de Medidor de Control en el Proceso de Producción de una Planta de Panificación y Repostería

2018 ◽  
Vol 14 (23) ◽  
pp. 155
Author(s):  
Sánchez-Vásquez Viviana ◽  
Caicedo-Camposano Oscar ◽  
Mora-Castro Oscar ◽  
Espinoza-Espinoza Fernando ◽  
Tandazo-Garcés Juan ◽  
...  
Keyword(s):  
Quality Control ◽  
Food Quality ◽  
Food Product ◽  
Processed Foods ◽  
Control Points ◽  
Good Practices ◽  
Critical Control Points ◽  
Good Manufacturing Practices ◽  
Safe Food

The following work was carried out in a baking and confectionery plant, in order to guarantee the quality of the products by optimizing the processes in these facilities, for which the principles set out in the Regulation of Good Practices for Processed Foods were taken into consideration. It´s desired to obtain products with food quality to provide healthy and safe food. For this, we take as a basis the regulations of Good Manufacturing Practices (GMP). This is how a study was conducted where proposals for key procedures and instructions were raised and executed to identify critical control points for improvement, followed by the implementation of Good Manufacturing Practices in a Bakery line. Good Manufacturing Practices are the sanitary foundation under which any company related to the processing and handling of food must operate, ensuring that the simplest of operations throughout the process of manufacturing a food product, is carried out under conditions that contribute to the assurance of the quality, hygiene and safety of the product. The GMP is in itself a system of quality control and safety through the elimination and / or reduction of contamination risks of a product.

scholarly journals Quality Management of Aluminum Pistons with the Use of Quality Control Points

2020 ◽  
Vol 28 (1) ◽  
pp. 29-33
Author(s):  
Grzegorz Ostasz ◽  
Karolina Czerwińska ◽  
Andrzej Pacana
Keyword(s):  
Quality Control ◽  
Production Process ◽  
Internal Combustion Engines ◽  
Control Point ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Control Points ◽  
Control Methods ◽  
Aluminium Piston

AbstractThe publication analyses the way of managing and improving the quality of the production process of aluminum pistons for internal combustion engines. The aim of the article is to propose a method of analysis of the effectiveness of individual control methods used in the process of controlling the aluminium piston. Thanks to the location of a control point with the highest share of product non-compliance detection in the production process, it is possible to reduce quality control points by less effective points, which will contribute to lower costs or shorten the time of production processes. In view of the increasing demands on the efficiency of the checkpoints for components in internal combustion engines, the issue is important and topical.

scholarly journals Evaluation of aerial technogenic pollution near industrial enterprises in the tundra zone (by the example of Vorkuta city)

2019 ◽  
pp. 94-105
Author(s):  
M. I. Vasilevich ◽  
R. S. Vasilevich ◽  
D. N. Gabov ◽  
B. M. Kondratenok
Keyword(s):  
Power Plant ◽  
Snow Cover ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Quantitative Chemical Analysis ◽  
Space Images ◽  
Industrial Enterprises ◽  
Coal Particles ◽  
Close Proximity ◽  
High Concentrations

The quantitative chemical analysis of snow cover has been carried out for the Vorkuta agglomeration territory. The on-site ingress of pollutants in close proximity to industrial enterprises in Vorkuta is calculated. The schematic maps of substance distribution in snow in the studied area are built using space images. The control levels of aerotechnogenic pollution are established for the city, industrial zones and adjacent territories for the purpose of subsequent ecological monitoring. The pH value of snowmelt water reaches 6.5-7.2 due to a high content of alkaline components (calcium and magnesium carbonates) in snow. The snow cover of the Vorkuta agglomeration is highly enriched with heavy metals. The maximum permissible concentrations are exceeded for manganese, nickel, aluminum, vanadium, molybdenum and mercury. High concentrations of mercury in snow are supposedly related to coal combustion at the thermal power plant. After that mercury may be occluded on a surface of coal particles and ashes. It is shown that it is possible to establish the zones of the greatest aerogenic impact according to the content of mercury and vanadium in the snow. Factor analysis was used to identify the mechanisms of pollutants and factors forming the chemical composition of the snow cover. The share of elements in the suspended solids is more than 60% of their total content in snowmelt water. High concentrations of suspended particles (up to 720 mg/dm3) were observed in the snow of Vorkuta. The most severe pollution of the snow cover is registered in close proximity to thermal power plant №2. According to the calculations of the total pollution index, the highest excess of substance increment over the background level was noted in the sanitary protection zone around the thermal power plant №2.

Numerical Analysis on the Characteristics of Settlement Deformation of the High Rock-Filled Embankment during the Construction Period

2012 ◽  
Vol 496 ◽  
pp. 374-378
Author(s):  
Shu Fang Wang ◽  
Xian Da Xu ◽  
Cheng Zhong Yang
Keyword(s):  
Quality Control ◽  
Stress And Strain ◽  
Control Points ◽  
Construction Quality ◽  
Process Step ◽  
Construction Period ◽  
Filling Height ◽  
Construction Specification ◽  
Stress And Deformation ◽  
Loading Modes

Embankment filling is a process step by step. The influences of its filling height changes on the stress and deformation can not be reflected in a load. However, in the actual construction, it leads to quality accident in embankment construction that filling usually doesn’t control the thickness according to the requirement of construction specification. In order to reveal the stress and strain law of about 72 m high rock-filled embankment during the construction, and provide a scientific reference to construction quality control of the embankment, according to the typical cross section of the Hurongxi highway, using two loading modes to simulate the embankment filling, the internal stress, strain and corresponding graphics of different control points of the embankment under the various loads were presented. The results of the two loading modes are analyzed and compared. It shows that the settlement, stress and construction quality control points of the embankment are different and larger under the different loading

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