Theoretical Analysis and Validation of Factors Affecting the Permeability on Coal Containing Gas

2014 ◽  
Vol 962-965 ◽  
pp. 1112-1117
Author(s):  
Gang Xu ◽  
Rui Feng Ma ◽  
Quan Bin Mou
Keyword(s):  
Prediction Accuracy ◽  
Gas Adsorption ◽  
Gas Pressure ◽  
Gas Extraction ◽  
Permeability Model ◽  
Crustal Stress ◽  
Factors Affecting ◽  
Definition Of ◽  
Gas Bearing ◽  
Expansion Temperature

Based on definition of porosity, permeability model of gas-bearing coal was build which took porosity gas pressure, gas adsorption expansion, temperature and crustal stress into account, and the factors affecting the permeability of gas-bearing coal has been analyzed theoretically. The results show that permeability decreased exponentially with crustal stress increasing, permeability decreased linearly with temperature increasing and permeability decreased first and then increased with gas pressure increasing; crustal stress had the strongest effect than gas pressure and temperature, decreasing crustal stress was the most effective way to increase permeability and to improve extraction; the results verified by experiments data show that the smaller error and the higher prediction accuracy can meet production practical requirement, which could provide some guidance to gas extraction.

The methodology of experimental research of the feed components extrusion process in order to improve its energy performance

2020 ◽  
pp. 147-152
Author(s):  
E. M. Ratnikov ◽  
D. O. Milko
Keyword(s):  
Experimental Studies ◽  
Energy Performance ◽  
Extrusion Process ◽  
Mathematical Methods ◽  
Screw Extruder ◽  
Mathematical Planning ◽  
Factors Affecting ◽  
Extrusion Processing ◽  
Definition Of

Annotation Purpose. Development of a program and methods for conducting experimental studies of the extrusion process with the definition of parameters and modes of operation of the extruder to improve its energy performance. Methods. Methods of mathematical statistics, synthesis, analysis, description and modeling were used. Results. The application of mathematical methods, in particular mathematical planning, reduces the number of experiments several times, and allows to evaluate the role of influencing factors, obtain a mathematical model of the process and determine the optimal conditions for its parameters and modes, etc. Conclusions. The methodology for experimental studies of a screw extruder is presented with the necessary equipment and methodology for processing the obtained experimental data. A mathematical method of planning, which reduces the number of experiments several times, allows us to evaluate the role of factors affecting productivity and energy intensity is presented. Keywords: extruder, auger, nutrients, research methodology, extrusion, processing, feed.

THE PROBLEMS OF THE INVESTIGATOR’S FORENSIC THINKING FORMATION

2021 ◽  
pp. 68-73
Author(s):  
Руслан Юрьевич Павлов
Keyword(s):  
Cognitive Abilities ◽  
Educational Process ◽  
Criminal Cases ◽  
Factors Affecting ◽  
Factors Associated ◽  
Personal Qualities ◽  
Definition Of ◽  
The Impact ◽  
Objective Investigation

Актуальность статьи связана с поиском новых способов и методов повышения эффективности борьбы с преступностью, оперативного раскрытия преступлений, а также с набирающим популярность среди криминалистов направлением «криминалистического мышления», овладение навыками которого будет способствовать наиболее полноценному и объективному расследованию уголовных дел. Проблемным в настоящее время является недостаточное качество следствия и необходимость повышения когнитивных способностей следователей (дознавателей). Задачей исследования являлось выявление факторов, влияющих на развитие и формирование криминалистического мышления следователей. Цель работы - провести анализ составных частей процесса становления следователя и особенностей его практической деятельности, влияющих на когнитивные способности с точки зрения криминалистики, путем изучения и сравнения имеющихся материалов по данной тематике. Анализу подвергнуты личностные качества следователя, особенности образовательного процесса и влияние опыта на результаты работы, а также факторы, сопутствующие следственной деятельности (организация труда, уровень стресса, нагрузки и т. д.). Результат проведенного исследования выражен в определении проблемных факторов, влияющих на формирование криминалистического мышления следователя (дознавателя) и возможных путей их преодоления, важности такого мышления, которое остается знанием, постоянно сориентированным в сторону практики. The relevance of the article is related to the search for new ways and methods to improve the effectiveness of the fight against crime, the prompt detection of crimes, as well as the trend of «forensic thinking», which is gaining popularity among criminalists, mastering the skills of which will contribute to the most complete and objective investigation of criminal cases. Problems at present are insufficient quality of investigation and the need to improve the cognitive abilities of investigators (inquirers). The task of the study was to identify factors that influence the development and formation of forensic thinking of investigators. The purpose of the work is- to analyze the components of the process of formation of an investigator and features of his practical activities affecting the cognitive abilities in terms of forensics by studying and comparing existing materials on this topic. The analysis is subjected to the personal qualities of an investigator, the peculiarities of the educational process and the impact of experience on the results of work, as well as factors associated with the investigative activity (organization of work, stress and stress levels, etc.). The result of the study is expressed in the definition of problematic factors affecting the formation of forensic thinking of an investigator (inquirer) and possible ways to overcome them, the importance of such thinking, which remains knowledge, constantly oriented towards practice

scholarly journals Comparative Analysis of Selected Factors Affecting Heating Costs of Schools in Selected Balkan Countries

2015 ◽  
Vol 8 (1) ◽  
pp. 61-84
Author(s):  
David Koppitz ◽  
Milan Půček ◽  
František Ochrana ◽  
Michal Plaček
Keyword(s):  
Comparative Analysis ◽  
Fiscal Federalism ◽  
Public Policies ◽  
School Facilities ◽  
Factors Affecting ◽  
Effective Implementation ◽  
Balkan Countries ◽  
Definition Of

Abstract The paper aims to carry out a comparative analysis of heating of school facilities under the administration of municipalities in Macedonia, Moldova and Kosovo and to test the factors that affect the heating costs of school facilities. For a definition of the theoretical fundament parts of the theory of fiscal federalism are used. Subsequently five hypotheses are put forward that are verified using the method of benchmarking. The theoretical conclusions and recommendations may be used for a more effective implementation of public policies within the surveyed countries.

scholarly journals АНАЛІЗ СПІВРОБІТНИКІВ КОМПАНІЇ ЯК НОСІЇВ КОРПОРАТИВНОЇ КУЛЬТУРИ

2019 ◽  
Vol 125 (4) ◽  
pp. 62-68
Author(s):  
Олена Миколаївна Афанасьєва ◽  
Валерія Вячеславівна Кошарна
Keyword(s):  
Staff Development ◽  
Corporate Culture ◽  
Social Life ◽  
Wide Spectrum ◽  
Equity Capital ◽  
Key Factors ◽  
Factors Affecting ◽  
Remuneration Policy ◽  
Business Structures ◽  
Definition Of

The paper explores the key factors affecting the corporate culture formation and development. Recently, the issues of corporate culture, especially in large organizations, trigger the focused attention of a number of management theorists and practitioners. It is a relatively new and insufficiently researched concept, both in this country and abroad. People make the foundation of any company, conversely any organization directs its activities towards a person fostering a multifaceted diversity of organizational culture brought in by each employee. This wide spectrum of variety is shaped by the uniqueness of each individual. Each person’s genetic background is exceptional which stems from people’s diversity of the universe. Ukrainian national individualism specified by the nature of social life plays a dual role in building a corporate culture domain of domestic business structures. Given the equity capital formation under the indirect ownership-based principle of “from individual to collective”, this feature of a national character contributes to corporate philosophy tailoring. The paper suggests a definition of the “corporate culture” concept as a set of values, beliefs, opinions, perceptions, expectations, symbols as well as behavior norms and patterns, traditions, rituals, etc. that have developed in the organization or its divisions during its life cycle and which are accepted by the majority of employees. The system of leadership based on encouraging practices is proved to be most effective. Diligent, initiative performance of management instructions, hard creative work in this case depend on the remuneration policy. Thus, incentives should be meaningful for a performer and feasible for a firm. Insights to a range of theoretical and practical aspects in building employee’s corporate culture are provided. The personnel particular role in facilitating the enterprise performance efficiency is revealed. The paper verifies the need to implement coaching in terms of effective training practices for staff development.

scholarly journals The Factors affecting the implementation of electronic training in health care organization in Saudi Arabia: The case of King Abdulaziz university hospital: العوامل المؤثرة في تطبيق التدريب الإلكتروني في المنظمات الصحية- دراسة تطبيقية على موظفي مستشفى جامعة الملك عبد العزيز الإداريين بالمملكة العربية السعودية

2019 ◽  
Vol 3 (10) ◽  
Author(s):  
Sabah Abdullah Alsomali  ,   Amira AbdulAziz Alghamdi
Keyword(s):  
Health Care Organization ◽  
General Information ◽  
University Hospital ◽  
Care Organization ◽  
Health Organizations ◽  
Factors Affecting ◽  
King Abdulaziz University ◽  
Definition Of ◽  
Study Hypothesis ◽  
Significant Factors

The current study focused on the definition of electronic training and the importance of electronic training in the health organizations. The study main objective was to study the most significant factors that are affecting the electronic training application in the health organizations. The researcher used both a descriptive and analytical methods in her study. A questionnaire was used as a tool for data collection; the questionnaire was divided into two sections. The first section contained questions about general information that included: sex – age- qualification – experience in years – computer skills. The second section dealt with questions related to the study hypothesis. This section consists of four parts as follows: The first part included 11 statements about the reality of the electronic training in the health organizations in the present, which is considered the dependent variable in this study. The second part consists of 15 statements; the third part consists of 13 statements. The fourth part consists of 8 statements. These parts addressed the most significant factors that affected the implementation of the electronic training in the health organizations. These were the independent variables of the study. The questionnaire was distributed to a study sample of (368) employee in the hospital. A (200) questionnaire were collected on a rate of 54%. The Results of the study showed that the infrastructure for the Information technology and the government's tends towards the digital society were the most important factors that primarily affect the possibility of applying the electronic training in the health organizations. The main recommendations of the study were: the need for a support from the high and senior management in the king Abdul Aziz University hospital to adopt the electronic application of the electronic training and manage the resistance of change that many organization faces. The necessity of the electronic training for all the staff on computers skills. Finally, the importance of having a unit for the technical support king Abdul Aziz University hospital.

scholarly journals Model of the co-operative trade alliance for independent retail networks in Czech Republic

2011 ◽  
Vol 59 (2) ◽  
pp. 377-384
Author(s):  
Marek Záboj
Keyword(s):  
Czech Republic ◽  
Trade Negotiation ◽  
Factors Affecting ◽  
Regional Market ◽  
Fast Moving Consumer Goods ◽  
Definition Of ◽  
Common Trade ◽  
The Given ◽  
Retail Formats ◽  
Transnational Trade

The main objective of the contribution is proposal of the model of co-operative trade alliance for independent trade alliances with fast-moving consumer goods (FMCG) in Czech Republic. Reason of the choice of this topic is sustain of variety of retail formats in Czech market in connection with position small and medium sized trade firms in comparison with transnational trade chains. Independent trade firms face to much bigger competitors operating supermarkets and hypermarkets, namely not even in size of sales area, width and depth of the assortment but also in possibility of negotiation of more profitable trade conditions with their suppliers. Effort of these independent trade firms, which operate mostly just in local or maximally regional market, is then mutual co-operation in form of consumer co-operatives, associations, alliances and networks. These groupings then mainly through common trade negotiation and purchase get for much more advantageous delivery and payment conditions from their suppliers. Besides they can participate in mutual financing of using of promotion instruments. Partial aim of the paper is investigation of opinion and willingness of Czech trade alliances with FMCG to utilize the opportunity of mutual co-operation in common trade alliance. Next partial goal is identification of the factors affecting formation of joint co-operative grouping and its structure, eventually definition of entry conditions which should be fulfilled by individual members.The system approach will be used to realize the given objective. This approach appears as the most suitable in consideration of anticipated structure and character of supposed model. The result will be then proposal of model of mutual co-operation between individual trade alliances.

scholarly journals Thermos-Solid-Gas Coupling Dynamic Model and Numerical Simulation of Coal Containing Gas

Geofluids ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Xiao Fukun ◽  
Meng Xin ◽  
Li Lianchong ◽  
Liu Jianfeng ◽  
Liu Gang ◽  
...  
Keyword(s):  
Principal Stress ◽  
Dynamic Model ◽  
Gas Flow ◽  
Flow Behavior ◽  
Coupling Model ◽  
Gas Pressure ◽  
Permeability Model ◽  
Gas Seepage ◽  
Coupling Dynamic ◽  
Coupling Dynamic Model

Based on gas seepage characteristics and the basic thermo-solid-gas coupling theory, the porosity model and the dynamic permeability model of coal body containing gas were derived. Based on the relationship between gas pressure, principal stress and temperature, and gas seepage, the thermo-solid-gas coupling dynamic model was established. Initial values and boundary conditions for the model were determined. Numerical simulations using this model were done to predict the gas flow behavior of a gassy coal sample. By using the thermo-solid-gas coupling model, the gas pressure, temperature, and principal stress influence, the change law of the pressure field, displacement field, stress field, temperature field, and permeability were numerically simulated. Research results show the following: (1) Gas pressure and displacement from the top to the end of the model gradually reduce, and stress from the top to the end gradually increases. The average permeability of the Y Z section of the model tends to decrease with the rise of the gas pressure, and the decrease amplitude slows down from the top of the model to the bottom. (2) When the principal stress and temperature are constant, the permeability decreases first and then flattens with the gas pressure. The permeability increases with the decrease of temperature while the gas pressure and principal stress remain unchanged.

scholarly journals MANAGEMENT DECISION MAKING USING AUTOMATED SYSTEM OF OPTIMUM STRUCTURE CHOICE FOR GROUND-SURFACE PUBLIC CONVEYANCES

2016 ◽  
Vol 2016 (3) ◽  
pp. 224-232
Author(s):  
Наталия Кузнецова ◽  
Nataliya Kuznetsova ◽  
Татьяна Карлова ◽  
Tatyana Karlova ◽  
Александр Бекмешов ◽  
...  
Keyword(s):  
Ground Surface ◽  
Automated System ◽  
Management Decision ◽  
Optimum Structure ◽  
Database Queries ◽  
Factors Affecting ◽  
Software Complex ◽  
Management Decision Making ◽  
Motion Speed ◽  
Definition Of

The article is devoted to the application of a special software complex for the definition of an opti-mum set of means of urban public groundsurface conveyances. In the paper are presented the existing software solutions meant for the definition of an optimum route, their basic merits and demerits are revealed, the methods for the solution of a problem in search of an op-timum set of means of ground surface public conveyance taking into account a maximum amount of factors affecting a motion speed are offered. The authors have presented a structure of an automated system for a choice of an optimum structure in ground surface public conveyances and also there are shown fragments of a corresponding program code and database queries. In the paper particular attention is paid to the working modes of an appendix presented, in particular, for the situation in the absence of customer’s device connection to the basic computer system.

Selection of Conditions for Chromatomembrane Gas Extraction at Its Combination with the Gas-Adsorption Preconcentration of Analytes

2018 ◽  
Vol 73 (5) ◽  
pp. 432-437 ◽  
Author(s):  
O. V. Rodinkov ◽  
A. S. Bugaichenko ◽  
L. N. Moskvin ◽  
A. R. Gorbacheva ◽  
E. A. Vagner
Keyword(s):  
Gas Adsorption ◽  
Gas Extraction ◽  
Adsorption Preconcentration ◽  
Selection Of

PSYCHO-EMOTIONAL STATE OF EMPLOYEES OF THE SANITARY AND EPIDEMIOLOGICAL CONTROL COMMITTEE UNDER QUARANTINE. (LITERARY REVIEW)

Vestnik ◽  
2021 ◽  
pp. 295-301
Author(s):  
Н.А. Максут ◽  
А.К. Текманова ◽  
К.К. Тогузбаева ◽  
Э.И. Кусайынова ◽  
А.А. Елепберген
Keyword(s):  
Emotional State ◽  
Current Issue ◽  
Psychological Status ◽  
Stressful Situation ◽  
Medical Problems ◽  
Factors Affecting ◽  
Psychoemotional State ◽  
The Republic ◽  
Definition Of ◽  
Emotional Burnout

Анализ в ходе исследования влияния факторов риска, влияющих на психоэмоциональное состояние работников комитета санитарно-эпидемиологического надзора в условиях карантина. Постоянное нахождение санитарных врачей в сфере здравоохранения в стрессовой ситуации при общении с больными в очаге заболевания, возникновение социально-медицинских проблем и другие морально-психологические факторы негативно влияют на их социально - психологический статус. Актуальность изучения данной проблемы стремительно растет из-за низкого уровня стрессоустойчивости и эмоционального выгорания значительной части санитарных врачей. В связи с распространенной эпидемиологической ситуацией в 2020 году на санитарных врачей в сфере общественного здравоохранения Республики Казахстан возложена большая нагрузка и ответственность. В связи с этим актуальным вопросом является определение психоэмоционального состояния санитарных врачей. Analysis of the influence of risk factors affecting the psychoemotional state of employees of the Committee for sanitary and epidemiological supervision in quarantine conditions. The constant presence of sanitary doctors in the field of health care in a stressful situation when communicating with patients in the focus of the disease, the occurrence of socio-medical problems and other moral and psychological factors negatively affect their socio-psychological status. The relevance of the study of this problem is rapidly growing due to the low level of stress resistance and emotional burnout of a significant part of sanitary doctors. Due to the widespread epidemiological situation in 2020, sanitary doctors in the field of public health of the Republic of Kazakhstan have a large burden and responsibility. In this regard, the current issue is the definition of the psychoemotional state of sanitary doctors.

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