ONLINE EXHIBITION METROLEXPO-2020. ACCURATE MEASUREMENTS ARE THE BASIS OF QUALITY AND SAFETY

2021 ◽  
pp. 50-57
Author(s):  
V. I. Matveev
Keyword(s):  
Measuring Equipment ◽  
Technical Diagnostics ◽  
Quality And Safety ◽  
New Methods ◽  
Analytical Studies ◽  
Functional Control ◽  
First Time

The article summarizes the results of the MetrolExpo exhibition, which was held for the first time online. The event focused on instrumentation-demonstration and discussion of the possibilities of modern measuring equipment, analysis of new methods and technologies of accurate measurements that have appeared in recent years. The latest developments, devices and systems for conducting measurements, tests, technical diagnostics, analytical studies, production and functional control from the largest Russian and foreign manufacturers were demonstrated.

scholarly journals RECENT ADVANCES AND PROSPECTS OF SQUARE-WAVE VOLTAMMETRY

2018 ◽  
Vol 39 (2) ◽  
pp. 103 ◽  
Author(s):  
Valentin Mirčeski ◽  
Leon Stojanov ◽  
Sławomira Skrzypek
Keyword(s):  
Kinetic Analysis ◽  
Square Wave Voltammetry ◽  
Square Wave ◽  
New Methods ◽  
Wave Voltammetry ◽  
Analytical Studies ◽  
Recent Advances ◽  
Voltammetric Techniques ◽  
Scan Rate ◽  
First Time

This review concerns recent methodological advances of square-wave voltammetry as one of the most sophisticatedmembers of the pulse voltammetric techniques. Besides addressing recent theoretical works and representatives ofadvanced analytical studies, an emphasis is given to a few novel methodological concepts such as kinetic analysis atconstant scan rate, cyclic square-wave voltammetry, multisampling square-wave voltammetry, and electrochemical faradaicspectroscopy. For the purpose of improving analytical performances of the technique two new methods are proposedfor the first time.

scholarly journals Efficient TALEN-mediated gene knockin at the bovine Y chromosome and generation of a sex-reversal bovine

2021 ◽  
Author(s):  
Ming Wang ◽  
ZhaoLin Sun ◽  
Fangrong Ding ◽  
Haiping Wang ◽  
Ling Li ◽  
...  
Keyword(s):  
Y Chromosome ◽  
Nuclear Transfer ◽  
Sex Reversal ◽  
Practical Application ◽  
Transcription Activator ◽  
New Methods ◽  
Fetal Fibroblasts ◽  
Male Phenotype ◽  
Solid Foundation ◽  
First Time

AbstractFunctional elucidation of bovine Y-chromosome genes requires available genome editing technologies. Meanwhile, it has yet to be proven whether the bovine Sry gene is the main or single factor involved in the development of the male phenotype in bovine. Here, we efficiently knocked out four Y-linked genes (Sry, ZFY, DDX3Y, and EIF2S3Y) in bovine fetal fibroblasts (BFFs) with transcription activator-like effector nucleases (TALENs) individually. Furthermore, we used TALEN-mediated gene knockin at the Sry gene and generated a sex-reversal bovine by somatic cell nuclear transfer (SCNT). The resulting bovine had only one ovary and was sterile. We demonstrate, for the first time, that the Sry gene is an important sex-determining gene in bovine. Our method lays a solid foundation for detecting the biology of the bovine Y chromosome, as it may provide an alternative biological model system for the study of mammalian sex determination, and new methods for the practical application in agricultural, especially for sex predetermination.

The Operation Monitoring Condition of the Production Machinery and Facilities Using the Tools of Technical Diagnostics

2013 ◽  
Vol 308 ◽  
pp. 105-109 ◽  
Author(s):  
Stanislava Šoltésová ◽  
Petr Baron
Keyword(s):  
Professional Practice ◽  
Main Tool ◽  
Diagnostic Tools ◽  
Technical Diagnostics ◽  
Effective Management ◽  
New Methods ◽  
Operation And Maintenance ◽  
Measurement Results ◽  
Reliability Of Measurement Results ◽  
Monitoring Behavior

Technical diagnostics is currently the most important factor of reliability, dealing with forms of disorder manifestation, developing of disorders, their detection and working principles. As tool it has great value in operation and maintenance of facilities. It denotes great interest not only in scientific sphere but also in sphere of results application in the new developing methods and their using in professional practice. Using methods of technical diagnostics taking into account the reliability of measurement results both with new methods IT is one of the main tool for effective management of facilities, elimination of unacceptable conditions and other aspects. The article describes the application of technical and diagnostic tools on workplaces for monitoring behavior of the production machines and facilities.

Improving Matsui’s Search Algorithm For The Best Differential/Linear Trails And Its Applications For DES, DESL And GIFT

2020 ◽  
Author(s):  
Fulei Ji ◽  
Wentao Zhang ◽  
Tianyou Ding
Keyword(s):  
Search Algorithm ◽  
Search Space ◽  
Search Methods ◽  
New Methods ◽  
Linear Layer ◽  
Speed Up ◽  
Automatic Search ◽  
The Cost ◽  
First Time ◽  
Improved Algorithm

Abstract Automatic search methods have been widely used for cryptanalysis of block ciphers, especially for the most classic cryptanalysis methods—differential and linear cryptanalysis. However, the automatic search methods, no matter based on MILP, SMT/SAT or CP techniques, can be inefficient when the search space is too large. In this paper, we propose three new methods to improve Matsui’s branch-and-bound search algorithm, which is known as the first generic algorithm for finding the best differential and linear trails. The three methods, named reconstructing DDT and LAT according to weight, executing linear layer operations in minimal cost and merging two 4-bit S-boxes into one 8-bit S-box, respectively, can efficiently speed up the search process by reducing the search space as much as possible and reducing the cost of executing linear layer operations. We apply our improved algorithm to DESL and GIFT, which are still the hard instances for the automatic search methods. As a result, we find the best differential trails for DESL (up to 14-round) and GIFT-128 (up to 19-round). The best linear trails for DESL (up to 16-round), GIFT-128 (up to 10-round) and GIFT-64 (up to 15-round) are also found. To the best of our knowledge, these security bounds for DESL and GIFT under single-key scenario are given for the first time. Meanwhile, it is the longest exploitable (differential or linear) trails for DESL and GIFT. Furthermore, benefiting from the efficiency of the improved algorithm, we do experiments to demonstrate that the clustering effect of differential trails for 13-round DES and DESL are both weak.

The Preparation and Low-Frequency Vibrational Spectra of Some Copper(I) and Silver(I) Alkane- and Arene-monothiolate Complexes

1979 ◽  
Vol 32 (7) ◽  
pp. 1443 ◽  
Author(s):  
GA Bowmaker ◽  
L Tan
Keyword(s):  
Raman Spectra ◽  
Infrared Spectra ◽  
Vibrational Spectra ◽  
Low Frequency ◽  
Far Infrared ◽  
New Methods ◽  
Thiolate Complexes ◽  
New Compounds ◽  
First Time ◽  
Far Infrared Spectra

A number of different methods for preparing anionic Group 1B metal thiolate complexes have been investigated. The compounds [Me4N] [CU2(SMe)3] and [Et4N] [Ag5(SBut)6] are reported for the first time, and new methods for preparing the previously known compounds [Et4N] [Cu5(SBut)6], [Me4N]2 [CU5(SPh)7] and [Et4N]2 [Cu5(SPh)7] are described. The far-infrared spectra of the above compounds, and of CuSMe, CuSBut, AgSBut, [Me4N]2 [CU4(SPh)6] and [Me4N]2 [Ag5(SPh)7] have been obtained, and metal-sulfur stretching bands are assigned in the 150-350 cm-1 region. The low-frequency Raman spectra have also been obtained for some of these compounds. Possible structures for the new compounds are considered in the light of the low-frequency vibrational spectra.

scholarly journals Optimization of the combined explosion hardening processes

2021 ◽  
Vol 280 ◽  
pp. 07018
Author(s):  
Viktor Shchetynin ◽  
Roman Arhat ◽  
Vladimir Drahobetskyi ◽  
Vyacheslav Puzyr ◽  
Dmitriy Maloshtan
Keyword(s):  
Wear Resistance ◽  
Lagrange Function ◽  
Extremum Problem ◽  
Mining Equipment ◽  
Explosive Cladding ◽  
New Methods ◽  
Conditional Extremum ◽  
Nonlinear Programming Methods ◽  
First Time ◽  
Strength And Ductility

The proposed method for calculating the loading parameters makes it possible to determine the wear parameters after explosion hardening. The calculation method is simple and less time consuming compared with calculation methods that involve the use of nonlinear programming methods. The main methods of increasing the wear resistance of mining equipment parts using explosion methods are generalized. The reserve for increasing the wear resistance consists in the optimization of deformation parameters during the power and thermal intensification of processes and the development of new methods and technologies of hardening. The factors (parameters) of the studied processes: explosive cladding, alloying, hardening, are formulated. Optimization of the processes under consideration is possible by decomposing the process into simpler ones with subsequent optimization of the parameters of these processes and the synthesis of the obtained solutions. For the first time, a solution to the multicriteria problem of two-stage explosion hardening is presented. It is proposed to split the process into simpler ones. Optimization criteria are proposed for each of the simplified processes. The problem is reduced to a conditional extremum problem, which is solved by composing the Lagrange function. By transforming the wear equation, the optimal ratio of strength and ductility for parts operating under abrasive wear conditions is determined.

scholarly journals SOCIAL-HYGIENIC MONITORING OF MORBIDITY BY PSORIASIS UNDER CONDITIONS OF THE ZAPOROZHSKY INDUSTRIAL REGION

2018 ◽  
Vol 14 (1-2) ◽  
pp. 70-74
Author(s):  
A.I. Sevalnev ◽  
I.A. Sokolovskaya ◽  
G.I. Makurina ◽  
V.A. Tsymbal
Keyword(s):  
Environmental Factors ◽  
Systematic Approach ◽  
Regional Level ◽  
Trigger Factors ◽  
Industrial Region ◽  
New Methods ◽  
The Earth ◽  
High Prevalence ◽  
Administrative Units ◽  
First Time

Relevance. The high prevalence of psoriasis among the population of the earth (0.1-7.0%), as well as the difficulty of its treatment, necessitate the development of new methods for its prevention and increasing the effectiveness of treatment. Objective. To study the peculiarities of the incidence of psoriasis in the population of the Zaporozhye region under the influence of unfavorable environmental factors. Methods. Under supervision in 2012, there were 5475 patients with psoriasis, of whom 2439 (44.5%) were women, 2731 (49.9%) were men and 305 (5.6%) were children. In 2013, there were 5635 patients with psoriasis, of whom 2504 (44.4%) were women, 2818 (50.0%) were men and 313 (5.6%) were children. Results. The highest levels of psoriasis in the Zaporozhye region are registered in Zaporozhye, Gulyaypol, Veselovsky, Kuibyshev, Primorsk and Vasilievsky districts. In these administrative units, the prevalence of psoriasis was within 269.6 - 513.8 cl. / 100 thousand, significantly higher than the average regional level (p <0.05), the prevalence of psoriasis in Zaporozhye (by 146.1 - 180.6 sl. / 100 thousand), in Gulyaypol district (by 96.1 - 141.9 cases / 100 thousand), and Veselovsky district (by 84.9 - 105.9 cases / 100 thousand). Conclusions: For the first time, a systematic approach to the analysis of the incidence of psoriasis with regard to environmental factors was used, in order to achieve stable remission in patients with active psoriasis, it is necessary to correct exogenous and endogenous trigger factors in order to minimize their effects.

scholarly journals Old Principles – New Methods in the Volatile Oils Approach

2010 ◽  
Vol 67 (2) ◽  
Author(s):  
Maria TOFANA ◽  
Sonia Ancuta SOCACI ◽  
Elena MUDURA ◽  
Delia Mihaela TRUTA ◽  
Delia MICHIU
Keyword(s):  
Veterinary Medicine ◽  
Food Quality ◽  
Quality And Safety ◽  
Volatile Oils ◽  
Testing Laboratory ◽  
Safety Testing ◽  
New Methods ◽  
Agricultural Sciences ◽  
Food Quality And Safety

The present paper is intended to be an attempt to systematize, though not exhaustive, the main approaches in the research of volatile oils. The analytical investigations of our researchers group in this area are carried out in the Food Quality and Safety Testing Laboratory (LICSA) from University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, as a continuation of our previous studies of volatile oils.

scholarly journals Calibration and accuracy analysis of a focused plenoptic camera

2014 ◽  
Vol II-3 ◽  
pp. 205-212 ◽  
Author(s):  
N. Zeller ◽  
F. Quint ◽  
U. Stilla
Keyword(s):  
Curve Fitting ◽  
Depth Map ◽  
Reference Points ◽  
New Methods ◽  
Model Based ◽  
Depth Images ◽  
Fitting Method ◽  
Plenoptic Camera ◽  
Curve Fitting Method ◽  
First Time

In this article we introduce new methods for the calibration of depth images from focused plenoptic cameras and validate the results. We start with a brief description of the concept of a focused plenoptic camera and how from the recorded raw image a depth map can be estimated. For this camera, an analytical expression of the depth accuracy is derived for the first time. In the main part of the paper, methods to calibrate a focused plenoptic camera are developed and evaluated. The optical imaging process is calibrated by using a method which is already known from the calibration of traditional cameras. For the calibration of the depth map two new model based methods, which make use of the projection concept of the camera are developed. These new methods are compared to a common curve fitting approach, which is based on Taylor-series-approximation. Both model based methods show significant advantages compared to the curve fitting method. They need less reference points for calibration than the curve fitting method and moreover, supply a function which is valid in excess of the range of calibration. In addition the depth map accuracy of the plenoptic camera was experimentally investigated for different focal lengths of the main lens and is compared to the analytical evaluation.

scholarly journals SOCIAL-HYGIENIC MONITORING OF MORBIDITY BY PSORIASIS UNDER CONDITIONS OF THE ZAPOROZHSKY INDUSTRIAL REGION

2018 ◽  
Vol 14 (1-2) ◽  
pp. 70-74
Author(s):  
A.I. Sevalnev ◽  
I.A. Sokolovskaya ◽  
G.I. Makurina ◽  
V.A. Tsymbal
Keyword(s):  
Environmental Factors ◽  
Systematic Approach ◽  
Regional Level ◽  
Trigger Factors ◽  
Industrial Region ◽  
New Methods ◽  
The Earth ◽  
High Prevalence ◽  
Administrative Units ◽  
First Time

Relevance. The high prevalence of psoriasis among the population of the earth (0.1-7.0%), as well as the difficulty of its treatment, necessitate the development of new methods for its prevention and increasing the effectiveness of treatment. Objective. To study the peculiarities of the incidence of psoriasis in the population of the Zaporozhye region under the influence of unfavorable environmental factors. Methods. Under supervision in 2012, there were 5475 patients with psoriasis, of whom 2439 (44.5%) were women, 2731 (49.9%) were men and 305 (5.6%) were children. In 2013, there were 5635 patients with psoriasis, of whom 2504 (44.4%) were women, 2818 (50.0%) were men and 313 (5.6%) were children. Results. The highest levels of psoriasis in the Zaporozhye region are registered in Zaporozhye, Gulyaypol, Veselovsky, Kuibyshev, Primorsk and Vasilievsky districts. In these administrative units, the prevalence of psoriasis was within 269.6 - 513.8 cl. / 100 thousand, significantly higher than the average regional level (p <0.05), the prevalence of psoriasis in Zaporozhye (by 146.1 - 180.6 sl. / 100 thousand), in Gulyaypol district (by 96.1 - 141.9 cases / 100 thousand), and Veselovsky district (by 84.9 - 105.9 cases / 100 thousand). Conclusions: For the first time, a systematic approach to the analysis of the incidence of psoriasis with regard to environmental factors was used, in order to achieve stable remission in patients with active psoriasis, it is necessary to correct exogenous and endogenous trigger factors in order to minimize their effects.

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