Defects of Golden and Luster Decorations on Glass

2008 ◽  
Vol 39-40 ◽  
pp. 571-574
Author(s):  
Helena Hradecká ◽  
Dana Rohanová
Keyword(s):  
Thin Layer ◽  
Technological Process ◽  
Glass Surface ◽  
Defect Formation ◽  
Optical Microscope ◽  
High Quality ◽  
Sodium Potassium ◽  
High Durability ◽  
Commercial Glass

Decoration of glass by a thin layer of golden or luster solutions demands a high quality of the glass surface, decorating solutions, as well as technological procedure. In the presented work the authors monitored causes of defect formation for two types of luster decorations and two types of commercial glass gilding preparations with various Ag contents. The results have shown that in case of an unsuitable technological process the layers on the glass demonstrate insufficient adhesion, colors different from the required shade or matt spots. The resistance of golden decorations against damage was further tested by washing of decorated samples in a dishwasher. In case of alkaline washing the decorations were more resistant on sodium-potassium glass and on a previously dealkalised glass surface. A high durability against washing was found for the golden decoration with high Ag content. The quality of layers was investigated with a spectrophotometer, optical microscope and SEM and compositions of the original and decorated glasses were determined with RTG-F and SEM/EDS analyses.

scholarly journals Laser Welding Of Finned Tubes Made Of Austenitic Steels

2015 ◽  
Vol 60 (3) ◽  
pp. 1807-1812
Author(s):  
M. Stolecki ◽  
H. Bijok ◽  
Ł. Kowal ◽  
J. Adamiec
Keyword(s):  
Laser Welding ◽  
Austenitic Steel ◽  
Technological Process ◽  
Welded Joints ◽  
Austenitic Steels ◽  
Tube Production ◽  
High Quality ◽  
Manufacturing Costs ◽  
Finned Tubes

Abstract This paper describes the technology of welding of finned tubes made of the X5CrNi1810 (1.4301) austenitic steel, developed at Energoinstal SA, allowing one to get high quality joints that meet the requirements of the classification societies (PN-EN 15614), and at the same time to significantly reduce the manufacturing costs. The authors described an automatic technological line equipped with a Trumph disc laser and a tube production technological process. To assess the quality of the joints, one performed metallographic examinations, hardness measurements and a technological attempt to rupture the fin. Analysis of the results proved that the laser-welded finned tubes were performed correctly and that the welded joints had shown no imperfections.

scholarly journals Research of technical and technological operations of irrigation and development of initial requirements to the technical means of their realization

2021 ◽  
Author(s):  
V. M. Мaliarchuk ◽  
◽  
A. O. Migalev ◽  
V. V. Sidorenko ◽  
E. M. Fedorchuk
Keyword(s):  
Technological Process ◽  
Irrigated Agriculture ◽  
Modern State ◽  
Separate Component ◽  
High Quality ◽  
Irrigation Methods ◽  
Ecological Requirements ◽  
Irrigation Purpose ◽  
Quality Indexes

Authors as a result of researches got informative, statistical and experimental data which allowed to ground and form initial requirements on the machine technological operations of irrigation. Purpose of researches – to conduct the analysis of practice of application of multi-supporting sprinkling-machines which are used in technologies of the irrigated agriculture, define the high-quality indexes of implementation of technological process and construction features for forming of requirements on the technical and technological operations of irrigation. Methods of researches: empiric, measuring, theoretical, mathematical and statistical, analysis of existent normative base. Results of researches. In the process of researches prospects, problems and terms of application of multi-supporting sprinkling-machines, are analyzed, the modern state and tendencies of improvement of these machines are considered. The brought classification over and structural signs of sprinkling-machines, basic charts and methods of irrigation, the review of constructions of sprinkling machines and technological features of their application, certain high-quality and operating-technological indexes of work of machines, are given. An operating in Ukraine normative base is analyzed in relation to requirements to the broad-cut sprinkling-machines at their application in the technique and technology operations of irrigation. It is educed as a result of analysis, that an investigational normative base touches mainly requirements to the construction of sprinkling machines and their separate component parts, methods of tests and requirements of safety. General initial requirements on technical and technological operations of irrigation, which touch quality of implementation of technological process, operating-technological and ecological requirements, requirements to reliability of and other absent. On the basis of the conducted researches and tests, experimental and informative data, which were taken as base, certain and initial requirements are reasonable on the technique and technology operations of irrigation at the use of broad-cut multisupporting sprinkling-machines, were got. Conclusions: the necessity of application of sprinkling-machines is set taking into account ecological requirements and the basic rules of their use are certain with the purpose of warning of erosive processes of soils .initial requirements are Certain and reasonable on the technical and technological operations of irrigation at the use of broad-cut multi-supporting sprinkling machines.

scholarly journals Impact of storage temperature and time on Moldavian dragonhead oil – spectroscopic and chemometric analysis

2019 ◽  
Vol 17 (1) ◽  
pp. 609-620
Author(s):  
Tomasz Oniszczuk ◽  
Arkadiusz Matwijczuk ◽  
Alicja Matwijczuk ◽  
Sławomir Kocira ◽  
Agnieszka Niemczynowicz ◽  
...  
Keyword(s):  
Storage Temperature ◽  
Chemometric Analysis ◽  
Ftir Spectra ◽  
High Quality ◽  
Long Term Storage ◽  
Innovative Methods ◽  
High Durability ◽  
The Moment

AbstractMoldavian dragonhead (Dracocephalum moldavica L.) is a plant endemic to Asia where it has been used for centuries for the production of essential oils. With the constantly growing demand for vegetable fats it is necessary to find new methods of ensuring their high quality from the moment of production until their eventual purchase by the consumer. Correct assessment of the quality of oleaginous products is therefore one of the intensively explored scientific problems that stimulates the development of innovative methods of analysing such substances. One of the newer and, most importantly, faster alternatives in the context of analysing the quality of oil and the changes it undergoes during storage is offered by FTIR spectroscopy (Fourier-Transform Infrared spectroscopy). By measuring the relevant FTIR spectra, we were able to observe clear discrepancies in the intensity of bands characteristic of the aging processes taking place in the oleaginous samples due to the oxidation of their fat fractions. The chemometric analysis of FTIR spectra confirmed the high quality of the analysed oils. It is noteworthy that the analysed samples of Moldavian dragonhead oil did not show particularly extensive changes in terms of their FTIR spectra during long-term storage. It confirms their high durability and usability in food production as an excellent product. This is valuable information in order to make progress in the use of Moldavian dragonhead oil in food products.

scholarly journals Creation of an automated system for measuring technological parameters in the rubber production line

2019 ◽  
Vol 81 (3) ◽  
pp. 225-230
Author(s):  
V. S. Zhirkova ◽  
N. L. Kleymenova ◽  
O. P. Dvoryaninova ◽  
L. I. Nazina ◽  
S. V. Ershov
Keyword(s):  
Production Process ◽  
Technological Process ◽  
Production Line ◽  
High Performance ◽  
Automated System ◽  
Automation System ◽  
Rubber Compound ◽  
Technological Parameters ◽  
High Quality

The introduction of an automated control system on the production line of the rubber compound will reduce the influence of the human factor on the quality of rubber products, which will lead to a significant improvement in the operational and physico-mechanical characteristics of the final product. Also, the development of this system will create a centralized data collection system for creating reports on technological operations of the production process. To obtain high-quality products, it is necessary to control and maintain all technological parameters during equipment operation at the same level, modern means of registration and parameter management. In the production of rubber compounds, it is necessary to ensure a high degree of automation of the main technological equipment, which will make it possible to more accurately dose the ingredients, including dusting ones, to conduct the process in a given temperature regime for the time required to obtain high-quality products. The implementation of automatic control during the use of high-performance equipment is not possible without the use of measuring and control equipment. The article is devoted to the problem of automation of a system for measuring technological parameters on a rubber compound production line in order to improve the quality of manufactured products. The analysis of the technological process is carried out, the controlled parameters of not only the modes of the technological process, but also of raw materials, semi-finished products and finished products are selected. The choice of instruments and local automation equipment is presented, as well as the choice of an industrial microcontroller with which control is carried out at the lower level of an integrated automation system. A functional diagram of the automation of the rubber compound production process is proposed, which will allow to obtain a product with quality indicators corresponding to the regulated level.

scholarly journals MICROWAVE INSTALLATIONS WITH NON-TRADITIONAL RESONATORS FOR COLLECTING FUR FROM RABBITS’ SKIN

2018 ◽  
Vol 13 (2) ◽  
pp. 144-150
Author(s):  
Евгений Шамин ◽  
Evgeniy Shamin ◽  
Галина Новикова ◽  
Galina Novikova ◽  
Ольга Михайлова ◽  
...  
Keyword(s):  
Technological Process ◽  
High Frequency ◽  
Hair Follicles ◽  
Maximum Diameter ◽  
Internal Cavity ◽  
Dielectric Heating ◽  
Microwave Technology ◽  
High Quality ◽  
High Electric Field Strength

The paper describes the developed ultrahigh-frequency installations with toroidal and conical resonators used for separating rabbits’ fur from hides providing high electric field strength, continuity of the technological process while observing radio-tightness and improving the quality of fluff by improving microwave technology and ultra-high-frequency installations. The technological process of collecting hair from rabbits’ skins in a microwave device with toroidal resonators is due to the weakening of the retention of the hair cover in hair follicles during the selective dielectric heating of the components of the skin and the spraying of the brine. In a biconical resonator, it is possible to obtain the highest possible high quality factor due to small longitudinal currents in the walls. The presence of gaps in the outermost regions provides the ability to move the skin through the internal cavity of the biconical resonator, where the emitters are located in the region of its maximum diameter.

Influence of technology parameters of free-cutting steel continuous casting on the billet internal structure

2020 ◽  
Vol 76 (2) ◽  
pp. 139-142
Author(s):  
A. T. Kunakbaeva ◽  
A. M. Stolyarov ◽  
M. V. Potapova
Keyword(s):  
Regression Analysis ◽  
Continuous Casting ◽  
Internal Structure ◽  
Sulfur Content ◽  
Manganese Content ◽  
High Quality ◽  
Correlation And Regression Analysis ◽  
Cutting Steel ◽  
Continuously Cast

Free-cutting steel gains specific working properties thanks to the high content of sulfur and phosphorus. These elements, especially sulfur, have a rather high tendency to segregation. Therefore, segregation defects in free-cutting steel continuously cast billets can be significantly developed. The aim of the work was to study the influence of the chemical composition of freecutting steel and casting technological parameters on the quality of the macrostructure of continuously cast billets. A metallographic assessment of the internal structure of cast metal made of free-cutting steel and data processing by application of correlation and regression analysis were the research methods. The array of production data of 43 heats of free-cutting steel of grade A12 was studied. Steel casting on a five-strand radial type continuous casting machine was carried out by various methods of metal pouring from tundish into the molds. Metal of 19 heats was poured with an open stream, and 24 heats – by a closed stream through submerged nozzles with a vertical hole. High-quality billets had a cross-sectional size of 150×150 mm. The macrostructure of high-quality square billets made of free-cutting steel of A12 grade is characterized by the presence of central porosity, axial segregation and peripheral point contamination, the degree of development of which was in the range from 1.5 to 2.0 points, segregation cracks and strips – about 1.0 points. In the course of casting with an open stream, almost all of these defects are more developed comparing with the casting by a closed stream. As a result of correlation and regression analysis, linear dependences of the development degree of segregation cracks and strips both axial and angular on the sulfur content in steel and on the ratio of manganese content to sulfur content were established. The degree of these defects development increases with growing of sulfur content in steel of A12 grade. These defects had especially strong development when sulfur content in steel was of more than 0.10%. To improve the quality of cast metal, it is necessary to have the ratio of the manganese content to the sulfur content in the metal more than eight.

Experience of clinical testing of personal telemedicine system ‘Obereg’ for remote monitoring of patients in intensive care units

2020 ◽  
pp. 52-58 ◽  
Author(s):  
A. A. Eryomenko ◽  
N. V. Rostunova ◽  
S. A. Budagyan ◽  
V. V. Stets
Keyword(s):  
Intensive Care ◽  
Intensive Care Units ◽  
Remote Monitoring ◽  
Clinical Testing ◽  
Transportation Of Patients ◽  
High Quality ◽  
Telemedicine System ◽  
Accuracy Of Measurements ◽  
Hospital Equipment

The experience of clinical testing of the personal telemedicine system ‘Obereg’ for remote monitoring of patients at the intensive care units of leading Russian clinics is described. The high quality of communication with the remote receiving devices of doctors, the accuracy of measurements, resistance to interference from various hospital equipment and the absence of its own impact on such equipment were confirmed. There are significant advantages compared to stationary patient monitors, in particular, for intra and out-of-hospital transportation of patients.

CONTROL IN REAL TIME THE DENSITY OF PRODUCT AT VARIOUS STAGES OF THE TECHNOLOGICAL PROCESS OF SUGAR PRODUCTION

2020 ◽  
Author(s):  
S.B. Kudryashev ◽  
◽  
N.S. Assev ◽  
R.D. Belashov ◽  
V.A. Naumenko ◽  
...  
Keyword(s):  
Real Time ◽  
Technological Process ◽  
Sugar Industry ◽  
Sugar Production ◽  
Production Processes ◽  
Quality Of Products

The article is devoted to solving one of the most important problems of the development of the sugar industry in Russia – the modernization of sugar production processes. Today, sugar production is actively being modernized, shifting most of its processes to the path of avomatization and optimization to improve the quality of products. This article describes one of the main ways to obtain information about the concentration of sucrose in syrup in the production of sugar.

METHODOLOGICAL ASPECTS OF VISUALIZATION OF CORONARY ARTERIES WITH TRANSTHORACIC ECHOCARDIOGRAPHY

2018 ◽  
pp. 26-35
Author(s):  
Z. A. Agaeva ◽  
K. B. Baghdasaryan
Keyword(s):  
Blood Flow ◽  
Coronary Blood Flow ◽  
Coronary Arteries ◽  
Transthoracic Echocardiography ◽  
Second Harmonic ◽  
Anatomic Reconstruction ◽  
High Quality ◽  
Acoustic Window ◽  
Methodological Aspects

The transthoracic echocardiography made by multifrequency probes with support of the mode of the second harmonic imaging, is a competitive method for visualization of the main coronary arteries and allows to estimate coronary blood flow with high quality. Of course, the method has considerable restrictions, most important of which is the low spatial resolution of a method, due to small acoustic window. Because of this the transthoracic visualization of coronary arteries perhaps will not become the leading method of anatomic reconstruction of separately taken coronary artery and especially all coronary arteries system. However uniqueness and indisputable advantage of this method is an opportunity to noninvasively estimate a coronary blood flow both once, and in dynamics.

Estimates on poverty in Russia and the additional measures to reduce it at the regional level

2020 ◽  
Vol 18 (4) ◽  
pp. 739-752 ◽  
Author(s):  
R.M. Sadykov
Keyword(s):  
Poverty Rate ◽  
Regional Level ◽  
Living Standards ◽  
Standard Of Living ◽  
High Quality ◽  
Social Standard ◽  
Republic Of Bashkortostan ◽  
The Republic ◽  
Sociological Studies

Subject. This article deals with the issues of social justice and a high quality of life, creating favorable economic and social conditions. Objectives. The article aims to assess the rate and changes in poverty in Russia and the Republic of Bashkortostan and develop complementary measures to reduce it. Methods. For the study, I used the methods of logical, comparative, economic and statistical analyses, the results of sociological studies, and official statistics. Results. The article highlights additional measures to reduce poverty in the region, including the establishment of a minimum social standard of living in each particular region that determines the poverty rate. Conclusions. Various factors, such as economic sanctions, economic slowdowns, territorial and regional imbalances, lead to living standards decline and poverty rise.

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