scholarly journals ANALYSIS OF MODERN GEODESIC METHODS FOR OBSERVING THE DEFORMATION AND LANDSCAPE PROCESSES

2020 ◽  
pp. 33-41
Author(s):  
Э. И. Ибрагимова ◽  
И. Г. Гайрабеков ◽  
А. Т. Мишиева
Keyword(s):  
High Precision ◽  
Basic Principles ◽  
Elastic Plastic ◽  
Significant Characteristic ◽  
Landscape Processes ◽  
Measurement Tools ◽  
Modern Methods ◽  
Quantitative Characteristics ◽  
External Loads ◽  
Deformations Of Buildings

Деформация - это самая значимая характеристика вязко-упруго-пластических сред, которая подлежит контролю. Для организации такого контроля применяются высокоточные геодезические методы и средства измерений, которые находят свое применение в мониторинге деформаций зданий и иных инфраструктурных объектов. Таким образом, отслеживание различных воздействий на внешние нагрузки и деформаций играет ключевую роль в плане поддержания функционирования обозначенных объектов. В настоящей статье сделан обзор современных методов и приборов, которые используются с целью определения количественных характеристик деформаций. Благодаря разработке новейших приборов с современным программным обеспечением и появлению роботизированных станций, которые дают возможность без непосредственного участия человека выполнять измерения, работа инженеров становится более эффективной. Кроме того, в статье представлены базовые принципы геодезического мониторинга зданий и иных инфраструктурных объектов. Deformation is the most significant characteristic of visco-elastic-plastic media that is subject to control. For the organization of such control, high-precision geodetic methods and measurement tools are used, which are used in monitoring deformations of buildings and other infrastructure objects. Thus, tracking various impacts on external loads and deformations plays a key role in maintaining the functioning of designated objects. This article provides an overview of modern methods and devices that are used to determine the quantitative characteristics of deformations. Thanks to the development of the latest devices with modern software and the emergence of robotic stations that make it possible to perform measurements without direct human involvement, the work of engineers becomes more efficient. In addition, the article presents the basic principles of geodetic monitoring of buildings and other infrastructure objects.

scholarly journals ОЦІНКА ПОКАЗНИКІВ КОМФОРТНОСТІ БІЛИЗНЯНИХ ТРИКОТАЖНИХ ПОЛОТЕН ДЛЯ ЗАНЯТЬ СПОРТОМ

2019 ◽  
Vol 136 (4) ◽  
pp. 106-114
Author(s):  
С. І. Арабулі ◽  
А. Т. Арабулі ◽  
С. С. Ототюк ◽  
В. В. Клочко ◽  
Д. Ю. Черепенко
Keyword(s):  
Physical Properties ◽  
Materials Science ◽  
Experimental Studies ◽  
Basic Principles ◽  
Textile Materials ◽  
Clothing Comfort ◽  
Modern Methods

Determination  of  comfort properties  of  knitted  underwear for  sports and  comparison  of traditional and innovative underwear for thermal underwear. Methodology.  The  article  provides  an  analysis  of  the  modern  range  of  textile  materials  for underwear, analyzes the latest developments in the design of thermal underwear. The modern methods have been used to determine clothing comfort and physical properties of textile materials. Experimental studies are based on the basic principles of textile materials science.

scholarly journals Comparative characteristics of the results of facial morphometry in patients with deep incisal overlap in the treatment of bracket systems and eliners

2020 ◽  
Vol 24 (2) ◽  
pp. 95-98
Author(s):  
S. Yu. Maksyukov ◽  
Nadezhda D. Pilipenko ◽  
K. D. Pilipenko
Keyword(s):  
Orthodontic Treatment ◽  
Arithmetic Mean ◽  
Morphometric Characteristics ◽  
Mandibular Angle ◽  
Deep Bite ◽  
Bite Angle ◽  
High Prevalence ◽  
Modern Methods ◽  
Quantitative Characteristics ◽  
The Mean

The relevance of studying the problem of deep incisal overlap (HF) among dentofacial anomalies (CCA) is due to the high prevalence of this pathology. Among modern methods of orthodontic treatment of pathology, the use of bracket systems and aligners is highlighted. The effectiveness of these techniques can be compared in determining the morphometric characteristics obtained by tele-radiography (TEG).Material and methods. The study involved 118 people with hydraulic fracturing, the average age was 38.7 8.5 years (64 women; 54 men). The first group consisted of 49 patients who underwent correction of AFA with eliners; second, 69 patients with bracket systems. To assess the effectiveness of treatment, TRG was performed. To present the results, in the case of quantitative characteristics, the arithmetic mean of the sample value (X) and the error of the mean (m) were calculated. For qualitative signs, the frequency of the sign (%) and its standard error (m%) were calculated.Results: The values ​​of the mandibular angle (G, ArGoMe), and the angles AB / ANS (AB / SpP), APg / ANS (MM), as well as the vertical dimensions of the jaws reached values ​​characteristic of an orthognathic bite. Angle increase SNB, NSL / ML4; angle reduction ANB.Output. Elimination of a deep bite is possible both with the use of bracket systems and aligners.

Modern Methods and Equipment for Hydroacoustic High- Precision Surveys of the Sea Bottom

2019 ◽  
Author(s):  
L. Merklin ◽  
A. Pleshkov ◽  
A. Sknarya ◽  
S. Tarasov
Keyword(s):  
High Precision ◽  
Sea Bottom ◽  
Modern Methods

scholarly journals Identification of carotenoid pigments of pumpkin grown in the South of Russia

2020 ◽  
Vol 161 ◽  
pp. 01106
Author(s):  
Lyudmila Rodionova ◽  
Irina Sobol ◽  
Lyudmila Donchenko ◽  
Natalia Limareva
Keyword(s):  
Chemical Analysis ◽  
Nutritional Value ◽  
Raw Material ◽  
Carotenoid Pigments ◽  
Modern Methods ◽  
Time Differential ◽  
Quantitative Characteristics ◽  
Long Time ◽  
Physical And Chemical

The article presents the results of studies of changes in the vitamin composition of pumpkin, grown in the Kuban region. Standard and modern methods of physical and chemical analysis were used in the research. It is shown that the nutritional value of this raw material allows to maintain its nutritional value for a long time. Differential determination of carotenoid pigments contained in pumpkin fruits was carried out. The quantitative characteristics of carotenoids were established and the predominant carotenoid pigments for the studied pumpkin varieties were specified.

Analysis of Oxytropis Tower Structure with Model Method

2013 ◽  
Vol 405-408 ◽  
pp. 1012-1016
Author(s):  
Kang Qin ◽  
Zhong Gen Xu ◽  
Chang Gen Deng
Keyword(s):  
Modal Analysis ◽  
Reference Data ◽  
Model Analysis ◽  
Seismic Action ◽  
Transmission Tower ◽  
Basic Principles ◽  
Elastic Plastic ◽  
Model Method ◽  
Plastic Analysis ◽  
Tower Structure

Basic principles of the modal analysis are introduced. Model analysis of an oxytropis tower which is in an actual transmission tower system is carried out. Rationality of the modal is checked by results of the vibration periods. Meanwhile, analysis of vibration types of transformation and rotation under seismic action is also carried out, in order to provide reference data for further elastic-plastic analysis.

A novel two-input asymmetric dynamic cross-coupled hysteresis modeling and identification for piezoelectric stack actuators

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1485-1493
Author(s):  
Yangyang Dong ◽  
Kungang Zuo ◽  
Shaojie Han ◽  
Zijian Zhang
Keyword(s):  
High Precision ◽  
Fast Response ◽  
Positioning System ◽  
Engineering Applications ◽  
Hysteresis Curves ◽  
Dynamic Excitation ◽  
Nonlinear Hysteresis ◽  
Proposed Model ◽  
Hysteresis Modeling ◽  
External Loads

Piezoelectric Stack Actuators (PEAs) have been widely used in high-precision positioning system because of its fast response. However, under different excitation voltages and external loads with dynamic frequencies, the width and inclination of PEAs hysteresis curves verified correspondingly, and exhibit asymmetry phenomenon. The main contribution of this paper is to present a two-input asymmetric dynamic cross-coupled hysteresis (TADCH) model to describe the complex nonlinear hysteresis of PEAs in dynamic excitation and loading engineering applications. Moreover, we also develop the corresponding identification method of TADCH model. Finally, several experiments are carried out to verify the accuracy of the proposed model.

scholarly journals A New Inverted Torsion Pendulum-Based Mechanical Spectrometer to Study Soft Matter

2016 ◽  
Vol 61 (1) ◽  
pp. 13-16 ◽  
Author(s):  
M.L. Lei ◽  
L. Chen ◽  
X.M. Xiong
Keyword(s):  
Internal Friction ◽  
High Precision ◽  
Soft Matter ◽  
Wide Frequency Range ◽  
The Novel ◽  
Torsion Pendulum ◽  
Frequency Range ◽  
Basic Principles

A new multifunctional mechanical spectrometer is developed based on an inverted torsion pendulum showing high precision in a wide frequency range to study soft matter. Apart from measuring the internal friction of solids it can also be used to study viscoelasticity. In this report we describe basic principles of the novel instrument.

scholarly journals NEW POSSIBILITIES OF THE STUDY OF RESPIRATORY FUNCTION IN CHILDREN

2018 ◽  
Vol 63 (4) ◽  
pp. 79-83 ◽  
Author(s):  
S. E. Diakova ◽  
Yu. L. Mizernitskiy
Keyword(s):  
High Precision ◽  
Respiratory Function ◽  
Test Methods ◽  
Comparative Assessment ◽  
Nitrogen Washout ◽  
Ventilation Inhomogeneity ◽  
Modern Methods ◽  
Pulmonary Volumes ◽  
Inhomogeneity Index

Тhe article provides an overview of modern methods of assessing the respiratory function in children taking into account their age peculiarities. The emphasis is made on high-precision ultrasonic spirometry, evaluation of static pulmonary volumes and determination of the ventilation inhomogeneity index by means of nitrogen washout with oxygen compared to the traditionally used methods. Authors’ own results of approbation of these test methods are presented and their comparative assessment is provided.

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