DEVELOPMENT OF CALCULATION METHODS AND SELECTION OF CHASSIS PARAMETERS OF MOBILE AUTONOMOUS COMPLEXES THAT ENSURE THE EFFICIENCY OF MOVEMENT IN COASTAL ZONES

2021 ◽  
pp. 63-80
Author(s):  
A.M. Belyaev
Keyword(s):  
Coastal Zones ◽  
Calculation Methods ◽  
Selection Of

scholarly journals Evaluation of ACE inhibitors lipophilicity using in silico and chromatographically obtained hydrophobicity parameters

2013 ◽  
Vol 67 (2) ◽  
pp. 209-216 ◽  
Author(s):  
Jadranka Odovic ◽  
Bojan Markovic ◽  
Jasna Trbojevic-Stankovic ◽  
Sote Vladimirov ◽  
Katarina Karljikovic-Rajic
Keyword(s):  
Ace Inhibitors ◽  
High Throughput Screening ◽  
Partition Coefficients ◽  
Relevant Literature ◽  
Reversed Phase ◽  
Careful Selection ◽  
Calculation Methods ◽  
Layer Chromatography ◽  
Linear Regressions ◽  
Selection Of

The aim of this study was to compare different calculation methods to determine lipophilicity, expressed as logP value, of seven ACE inhibitors (enalapril, quinapril, fosinopril, lisinopril, cilazapril, ramipril, and benazapril) with significantly different structure. Experimentally determined n-octanol/water partition coefficients, logPO/W values, were obtained from relevant literature. The correlations between all collected logP values were studied and the best agreements between calculated logP and experimentally determined logPO/W values, were observed for KOWWINlogP or MilogP values (r = 0.999 or r = 0.974, respectively). The correlations between all collected logP values and chromatographically (reversed-phase thin-layer chromatography) obtained hydrophobicity parameters, RM0 and C0, were established. The good correlations (r > 0.90) were obtained in the majority of relationships. The KOWWINlogP was established as the most suitable hydrophobicity parameter of investigated group of ACE inhibitors with r = 0.981 for correlation with RM0 and r = 0.977 for correlation with C0 parameters (water-methanol mobile phase). Using multiple linear regressions, it was established that application of two selected logP, calculated by different mathematical approaches, led to very good correlation due to the benefits of both calculation methods. The good relationships indicate that the computed logP, with careful selection of method calculation, can be useful in ACE inhibitors lipophilicity evaluation, as high-throughput screening technique.

scholarly journals Convective phenomena forecasting based on output data of numerical models available in the Hydrometeorological Centre of the Republic of Belarus

2017 ◽  
pp. 57-64
Author(s):  
M. I. Prokharenya
Keyword(s):  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Numerical Models ◽  
Calculation Methods ◽  
Output Data ◽  
Model Calculations ◽  
Convective Processes ◽  
The Republic ◽  
Radar Satellite ◽  
Selection Of

In the article you can read about the methods used for forecasting convective processes by means of output products of numerical models with various spatial resolution. It presents the methods for forecasting convective phenomena applied in the Hydrometeorological Centre of the Republic of Belarus. The state of the atmosphere affected by intensive convection over the territory of the Republic of Belarus on July 13, 2016 is analyzed. The categorial evaluation of the thunderstorm forecasting methods by G.D. Reshetov and I.A. Slavin is specified with the respective results presented. The article analyzes the forecast of convective phenomena conducted with the help of the non-hydrostatic regional model WRF-ARW. Use of convective instability indices and calculation methods can facilitate convective phenomena forecasting. The advantage of their use consists in possibility of their application within the areas not covered by aerological sounding. However, selection of indicators of instability and methods of thunderstorm and other dangerous phenomena forecasting depends on features of an area under study and this requires further research. To ensure more accurate convective phenomena forecasting it is necessary to consider radar, satellite and aerological observations when conducting numerical model calculations. The results of the research showed that convective phenomena forecasting requires use of models with a high spatial resolution.

Selection of Soybean Varieties for Coastal Zones in Bengkulu

2020 ◽  
Vol 10 (5) ◽  
pp. 2152
Author(s):  
Yudhy Harini Bertham ◽  
Abimanyu Dipo Nusantara ◽  
Hesti Pujiwati
Keyword(s):  
Coastal Zones ◽  
Selection Of

Comparison of the Methods for Calculating Instant Depth of Cut

2013 ◽  
Vol 634-638 ◽  
pp. 3313-3320 ◽  
Author(s):  
Yong Sun ◽  
X.S. Li
Keyword(s):  
Theoretical Analysis ◽  
Calculation Method ◽  
Approximate Formula ◽  
Accurate Solution ◽  
Mining Machine ◽  
Depth Of Cut ◽  
Calculation Methods ◽  
Continuous Mining ◽  
Selection Of ◽  
Advance Speed

When cutting rocks using mechanical excavators, the depth of cut (DOC) of cutting picks is a major factor that affects the forces on the picks and the drum on which the picks are installed. To optimize the design of the picks and the drum, as well as the operation of the continuous mining machine, it is necessary to analyze the DOC of individual picks accurately. In a cutting cycle, different picks can be in various positions and consequently have diverse DOCs which are termed the instant DOCs at the corresponding positions. In this study, it is aimed to investigate both accurate solution and approximate formula for the calculation of instant DOC. Based on theoretical analysis, the equations for the calculation of instant DOC have been developed, and the quantitative comparisons between the different DOC calculation methods have been made. The influence of the advance speed per revolution of the drum on the instant DOC, the cut interactions between picks and the cutting sections of individual picks have also been investigated. The results can assist in the selection of an appropriate DOC calculation method and improvement of drum design and operation.

On the Structure of Atomic Clusters: Selection of Calculation Methods to Match Mass Spectra

2015 ◽  
Vol 1117 ◽  
pp. 26-30 ◽  
Author(s):  
Andriy Dmytruk
Keyword(s):  
Mass Spectrum ◽  
Chemical Composition ◽  
Mass Spectroscopy ◽  
Structure Determination ◽  
Quantum Chemical ◽  
Mass Spectra ◽  
Atomic Clusters ◽  
Binding Energies ◽  
Calculation Methods ◽  
Selection Of

Studying atomic clusters, their chemical composition can be find by time-of-flight mass spectroscopy even for a miserable quantity of the sample, while their structure determination requires either their production in enough quantity that can be problematic for new substances, or usage of quantum chemical calculations otherwise. However, the result of the calculations depends on the method used. It is suggested in this report to use a correlation between the abundances of the clusters in the mass spectrum and their calculated binding energies as a criterion for selection of an appropriate calculation method. This approach is applied for the case of (ZnO)n and (ZnS)n clusters of n = 12 and 13.

scholarly journals Calculation module of thread connection generator in Inventor

2018 ◽  
Vol 19 (6) ◽  
pp. 573-576
Author(s):  
Andrzej Maciejczyk
Keyword(s):  
Analytical Calculation ◽  
Construction Process ◽  
Calculation Methods ◽  
Thread Connection ◽  
Calculation Module ◽  
Selection Of

The article presented an analysis of the selection of bracket screws using classical, analytical calculation methods and using the Inventor generator. The operation and functionality of the generator calculation module are discussed. Its imperfections, simplifications and perceived errors were pointed out. Its usefulness in the construction process was assessed.

Research on Stability Calculation Methods for Grillage Supporting Structure with Pre-Stressed Anchor

2014 ◽  
Vol 686 ◽  
pp. 666-670
Author(s):  
Xiang Ling Zhou
Keyword(s):  
Rational Design ◽  
Internal Force ◽  
Calculation Methods ◽  
Soil Pressure ◽  
Stability Calculation ◽  
Prestress Losses ◽  
Anchor Cable ◽  
Test Points ◽  
Prestressed Anchor ◽  
Selection Of

Aiming at prestressed anchor cable frame in the presence of reinforcement landslide problem, through the selection of test points, the paper study and tested soil pressure, frame internal force and prestress losses under prestressed anchor cable frame beam, reveal the law of internal force distribution, and provides a theory basis for the rational design of prestressed anchor cable in landslide..

Web-Aided Design for Dimensioning Power Cables

2011 ◽  
Vol 291-294 ◽  
pp. 2233-2236
Author(s):  
Qing Zhi Zhai ◽  
Jian Hua Yang ◽  
Yang Chen
Keyword(s):  
Power System ◽  
Electric Circuit ◽  
Power Cables ◽  
Calculation Methods ◽  
Size Selection ◽  
Xml Documents ◽  
Calculation Results ◽  
System Data ◽  
Aided Design ◽  
Selection Of

The size selection of cables is not only to avoid the excessive heating and the danger of fire, but also to insure the service and the reliability of the concerned electric circuit. In the context of the dimension of the cables, some standards should be observed and necessary calculations should be done. With the requirement of the worldwide expansion application on Internet, the approach and the architecture of a complete Web-aided design platform are proposed for dimensioning the cables. The platform supports some calculation methods which are necessary for selecting the cables. Both XML documents and databases are used to interchange power system data and calculation results between Web servers and clients.

scholarly journals Application of geosynthetic materials for road structures

2019 ◽  
Vol 265 ◽  
pp. 01013
Author(s):  
Elvir Akhmetshin ◽  
Kseniya Kovalenko
Keyword(s):  
Unit Cost ◽  
Road Construction ◽  
Coastal Zones ◽  
Technical Documentation ◽  
Calculation Methods ◽  
Road Surfaces ◽  
Environmentally Safe ◽  
Useful Life ◽  
The Cost ◽  
Cost Of Construction

In this article, the authors examines the application of geomaterials in road constructions, it economic indicators, the dependence of surface density and unit cost, as well as strength and unit cost, are analyzed. The economic and technical advantages of using woven geomaterials are shown. Geosynthetic materials allow increasing the strength of road structures and reducing the cost of construction while maintaining strength and reliability. Geogrid road has all the permits and technical documentation: the calculation methods are developed for the solution of road construction. Woven geomaterials are the best to use and have a number of advantages, but now nonwoven geomaterials are usually used in Russia, which is caused by imperfect design methods that do not take into account the strength of the geomaterial and reduce the density of pavement when using thick geomaterials. Geomaterials are geosynthetic products for strengthening slopes, slopes, coastal zones, road surfaces and other territories that need strengthening of soils. Geomaterials, among other things, are an excellent protection against erosion, environmentally safe, reliable, have a long useful life and are easily installed. Depending on the needs and type of territory, geogrids, geomatics and road geosets are used.

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