scholarly journals Investigation of the damp-heating processing of multilayer fabric

2020 ◽  
Vol 71 (06) ◽  
pp. 568-571
Author(s):  
SNEZHINA ANDONOVA ◽  
IVAN AMUDZHEV
Keyword(s):  
Technology Development ◽  
Complex Structure ◽  
Component Composition ◽  
Limit Values ◽  
Textile Materials ◽  
Technological Processes ◽  
Operating Modes ◽  
Controllable Factors ◽  
Composition Structure

With the global industrial technology development, technological processes in the textile and clothing industry areconstantly evolving. These rapid rates of development necessitate the need for continuous research and analysis toestablish optimal operating modes for various technological processes. The damp-heating processing/DHP is one of themain technological processes in the sewing industry. The quality of the sewing article depends to a large extent on thequality of the performance of operations in the damp-heating processing. The wide variety of textile materials, each withdifferent composition, structure and properties, is a prerequisite for conducting extensive research to refine manageablefactors of the DHP process. In recent years, textile materials with an increasingly complex structure and multi-component composition have become increasingly important. Of particular interest are the so-called double wovenfabrics. Therefore, the subject of this study is the damp-heating processing of an innovative textile fabric tissue –amultilayer weave type “double cloth”. One of the main controllable factors of the damp-heating processing is the amountof moisture introduced into the processed textile materials. The aim of this paper is to determine the limit values for theamount of steam used in the damp-heating processing of a tissue –a multilayer weave type “double cloth”.

scholarly journals Investigation of the damp-heating processing of multilayer fabric

2020 ◽  
Vol 71 (06) ◽  
pp. 568-571
Author(s):  
SNEZHINA ANDONOVA ◽  
IVAN AMUDZHEV
Keyword(s):  
Technology Development ◽  
Complex Structure ◽  
Component Composition ◽  
Limit Values ◽  
Textile Materials ◽  
Technological Processes ◽  
Operating Modes ◽  
Controllable Factors ◽  
Composition Structure

With the global industrial technology development, technological processes in the textile and clothing industry areconstantly evolving. These rapid rates of development necessitate the need for continuous research and analysis toestablish optimal operating modes for various technological processes. The damp-heating processing/DHP is one of themain technological processes in the sewing industry. The quality of the sewing article depends to a large extent on thequality of the performance of operations in the damp-heating processing. The wide variety of textile materials, each withdifferent composition, structure and properties, is a prerequisite for conducting extensive research to refine manageablefactors of the DHP process. In recent years, textile materials with an increasingly complex structure and multi-component composition have become increasingly important. Of particular interest are the so-called double wovenfabrics. Therefore, the subject of this study is the damp-heating processing of an innovative textile fabric tissue –amultilayer weave type “double cloth”. One of the main controllable factors of the damp-heating processing is the amountof moisture introduced into the processed textile materials. The aim of this paper is to determine the limit values for theamount of steam used in the damp-heating processing of a tissue –a multilayer weave type “double cloth”.

scholarly journals An investigation of the thermo-mechanical fusing process of innovative textile materials

2021 ◽  
Vol 72 (06) ◽  
pp. 601-605
Author(s):  
SNEZHINA ANDONOVA ◽  
ALEKSEY STEFANOV ◽  
IVAN AMUDZHEV
Keyword(s):  
Temperature Change ◽  
Large Scale ◽  
Complex Structure ◽  
The Other ◽  
Textile Materials ◽  
Effective Implementation ◽  
Composition And Structure ◽  
Continuous Feedback ◽  
The Relationship

The process of thermo-mechanical fusing (TMF) is one of the major technological processes in the sewing industry. The quality of the sewing article as a whole depends largely on the effective implementation of this process. The good appearance of the finished product and the preservation of the shapes given during the operation of the product depend on the proper choice of the parameters for the TMF. It is therefore important to carry out research to optimize this process. On the other hand, new and different textile materials (TM) with more complex structure and multicomponent composition have appeared in recent years. This determines the different properties of each TM. Therefore, it is extremely important to conduct numerous preliminary studies and analyses to determine the specific effective values for defining the TMF process for a particular type of TM. This is especially important namely for large-scale companies. In the context of the above, it is of particular interest to study the TMF process for an innovative TM (with complex structure and multicomponent composition) registered with a patent for an invention in recent years. The purpose of the present work is to investigate and analyse the nature of the change in temperature between basic and adhesive TM in TMF of innovative /complex in composition and structure/TM. As a result of the performed research and analysis, a method for establishing continuous feedback with the processed textile materials at TMF has been proposed. The nature of the temperature change of the treated innovative TM has been defined. The relationship between the time for conducting the TMF process and the temperature of the pressing plate for the respective innovative TM has been established.

VALORIZATION OF THE URBAN ENVIRONMENT OF SOUTH SERBIA FROM THE AIR QUALITY ASPECT

2018 ◽  
Vol 28 (4) ◽  
pp. 1329-1333
Author(s):  
Miodrag Šmelcerović
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Urban Environment ◽  
Pollution Sources ◽  
Anthropogenic Sources ◽  
Anthropogenic Factors ◽  
Limit Values ◽  
Cause And Effect ◽  
Sources Of Pollution

The protection of the environment and people’s health from negative influences of the pollution of air as a medium of the environment requires constant observing of the air quality in accordance with international standards, the analysis of emission and imission of polluting matters in the air, and their connection with the sources of pollution. Having in mind the series of laws and delegated legislations which define the field of air pollution, it is necessary to closely observe these long-term processes, discovering cause-and-effect relationships between the activities of anthropogenic sources of emission of polluting matters and the level of air degradation. The relevant evaluation of the air quality of a certain area can be conducted if the level of concentration of polluting matters characteristic for the pollution sources of this area is observed in a longer period of time. The data obtained by the observation of the air pollution are the basis for creation of the recovery program of a certain area. Vranje is a town in South Serbia where there is a bigger number of anthropogenic pollution sources that can significantly diminish the air quality. The cause-and-effect relationship of the anthropogenic sources of pollution is conducted related to the analysis of systematized data which are in the relevant data base of the authorized institution The Institute of Public Health Vranje, for the time period between the year of 2012. and 2017. By the analysis of data of imission concentrations of typical polluting matters, the dominant polluting matters were determined on the territory of the town of Vranje, the ones that are the causers of the biggest air pollution and the risk for people’s health. Analysis of the concentration of soot, sulfur dioxide and nitrogen oxides indicates their presence in the air of Vranje town area in concentrations that do not exceed the permitted limit values annually. The greatest pollution is caused by the soot content in the air, especially in the winter period when the highest number of days with the values above the limit was registered. By perceiving the influence of natural and anthropogenic factors, it is clear that the concentration of polluting matters can be decreased only by establishing control over anthropogenic sources of pollution, and thus it can be contributed to the improvement of the air quality of this urban environment.

Method and results of experimental researches of modes of work of the adaptive milking equipment on the basis of the portion meter of the weight type

2020 ◽  
pp. 140-146
Author(s):  
I. A. Afanasiev ◽  
V. V. Tkach
Keyword(s):  
Regression Analysis ◽  
Vacuum Pressure ◽  
Limit Values ◽  
Operating Modes ◽  
Machine Milking ◽  
Milk Output ◽  
Mode Of Operation ◽  
Milking Machine ◽  
Experimental Researches

Annotation Purpose. Improving the efficiency of machine milking due to the improvement of milking equipment on the basis of the portion meter of the weight type. Methods. Studies have been conducted on the basis of the planned experiment. The data obtained were processed using the methods of regression analysis. Results. The technique of laboratory researches is developed, a prototype of a membrane regulator of vacuum is made and experimental researches of operating modes of the adaptive milking equipment on the basis of the portion meter of the weight type. According to the results of the research, the dependence between the parameters and the mode of operation of the membrane vacuum regulator was obtained. Conclusions. The dependence is obtained, between the vacuum pressure in the milk collection chamber of the collector, milk expense, the diameters of the milk pipe and the diameters of a throttle opening. The limit values of the intensity of milk output (0.2 m3/s) at which there is a critical drop in the working vacuum pressure in the milk collection chamber of the collector and the corresponding choke parameters (diameter of the throttle opening 0,001 m) are defined. This eliminates this negative phenomenon. Keywords: adaptive milking equipment, milking machine, machine milking, milk expense.

scholarly journals Textile Recognition and Sorting for Recycling at an Automated Line Using Near Infrared Spectroscopy

Recycling ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 11
Author(s):  
Kirsti Cura ◽  
Niko Rintala ◽  
Taina Kamppuri ◽  
Eetta Saarimäki ◽  
Pirjo Heikkilä
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Nir Spectroscopy ◽  
Automated Recognition ◽  
Textile Materials ◽  
Input Material ◽  
Adequate Quality ◽  
Automated Line

In order to add value to recycled textile material and to guarantee that the input material for recycling processes is of adequate quality, it is essential to be able to accurately recognise and sort items according to their material content. Therefore, there is a need for an economically viable and effective way to recognise and sort textile materials. Automated recognition and sorting lines provide a method for ensuring better quality of the fractions being recycled and thus enhance the availability of such fractions for recycling. The aim of this study was to deepen the understanding of NIR spectroscopy technology in the recognition of textile materials by studying the effects of structural fabric properties on the recognition. The identified properties of fabrics that led non-matching recognition were coating and finishing that lead different recognition of the material depending on the side facing the NIR analyser. In addition, very thin fabrics allowed NIRS to penetrate through the fabric and resulted in the non-matching recognition. Additionally, ageing was found to cause such chemical changes, especially in the spectra of cotton, that hampered the recognition.

HONING PROCESS USING WATER-BASED COOLANT CONTAINING SOLUBLE WATER POLYMERS

2020 ◽  
Author(s):  
Y.V. Sidelnik-Rubanova ◽  
◽  
E.Y Manshina
Keyword(s):  
Environmentally Friendly ◽  
Quality Of Work ◽  
Technological Processes ◽  
Cooling Liquid ◽  
Water Based

Honing using a silicate-cooling liquid improves the quality of work surfaces, which increases the reliability and durability of the interfaces. This coolant can be used in existing technological processes. it is cheap, fireproof, does not contain scarce components, is environmentally friendly, accessible and easy to manufacture.

Two-Phase Filtration Model for Nonlinear Viscoplastic Oil and Hard Water Drive

2014 ◽  
Vol 698 ◽  
pp. 679-682
Author(s):  
Anastasia Markelova ◽  
Artem Trifonov ◽  
Valeria Olkhovskaya
Keyword(s):  
Hard Water ◽  
Component Composition ◽  
High Viscosity ◽  
Oil Fields ◽  
Nonlinear Dependence ◽  
Fractional Flow ◽  
Two Phase ◽  
Oil Flow ◽  
High Viscosity Oil

The article offers a method to solve Buckley-Leverett’s problem, taking into account the nonlinear dependence of the filtration rate of viscoplastic oil on the pressure gradient. This method is based on the transformation of the fractional flow function by introducing in the theory of water drive the equations reflecting the rheological features of the oil flow. The resulting model allows us to quantify the influence of rheological factors on the completeness of the water-oil displacement and to calculate the performance, taking into account the component composition of the hydrocarbon phases. Taking the Samara Region oil fields as an example, the article shows that the quality of design is unsatisfactory when the bundled software being used does not take into account specific non-Newtonian properties of the high-viscosity oil.

scholarly journals IMPROVING THE QUALITY OF INFORMATION SUPPORT FOR MONITORING AIR POLLUTION FROM VEHICLES (CASE STUDY OF ST. PETERSBURG)

2021 ◽  
Vol 26 (2) ◽  
pp. 65-74
Author(s):  
V. N. Lozhkin ◽  
◽  
O. V. Lozhkina ◽  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Information Support ◽  
Information Process ◽  
Limit Values ◽  
Standard Limit ◽  
The City ◽  
Original Information

Introduction. St. Petersburg is the cultural and sea capital of Russia. The city is characterized by environmental problems typical for the largest cities in the world. It has a technical system for instrumental online monitoring and computational forecasting of air quality. Methods. The system maintains the information process by means of computational monitoring of its current and future state. Results. The paper describes methodological approaches to the generation of instrumental information about the structure and intensity of traffic flows in the urban road network and its digital transformation into GIS maps of air pollution in terms of pollutants standard limit values excess. Conclusion. The original information technology for air quality control was introduced at the regional level in the form of an official methodology and is used in environmental management activities.

scholarly journals Peningkatan Kualitas Sumber Daya Manusia Melalui Pelatihan Peranan Humas bagi Anggota Polresta Tangerang

2020 ◽  
Vol 3 (2) ◽  
pp. 75-82
Author(s):  
Heriyanti Heriyanti ◽  
◽  
Ummanah Ummanah ◽  
Resman Maharul Tambunan ◽  
◽  
...  
Keyword(s):  
Public Relations ◽  
Technology Development ◽  
Police Department ◽  
Media Relations ◽  
Basic Principles ◽  
The Public ◽  
Security Guards ◽  
The Government

The rapid technology development and information made public (community) being so critical to the policies was taken by the government. This requires police institution to maintain of security guards, public order, enforce the law, provides protection, aegis and service to the community. Public Relations (PR) is an agency which have a duty to understand and evaluate a variety of public opinion in order to help to create harmony between particular agencies with the public. In order to increase quality of human resources in Police Department are required personnel with the ability in resolving problems the happens in society. In resolving these problems, that needed cooperation between police department, college and the community. The contribution of college to police department and the community with conducting the devotion to the community in cooperation Polresta Tangerang. The method in use in devotion community is by providing training of the role of public relations to Polresta Tangerang members through zoom cloud meeting. The role of public relations training aimed at giving public knowledge include similarity in communication, public relations function, basic principles of public relations, the management of the community and management of media relations may be good quality police. The evaluation of the training be concluded that the training that performed capable of increase understanding participants on the role of public relations.

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