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Investigation Of The Accuracy Of Alcohol And Drug Involvement Reporting, William Nicholas Staats 2019 University of Kentucky

Investigation Of The Accuracy Of Alcohol And Drug Involvement Reporting, William Nicholas Staats

Kentucky Transportation Center Research Report

Executive Summary

Researchers compared the 2013 to 2017 fatal crash data from the KSP database to the crash data from the FARS database to check the consistency and accuracy of alcohol and drug involvement reporting for drivers in the KSP database. The indications of alcohol and drug involvement in the FARS database were used as the ground truth due to the inclusion of laboratory test results confirming the presence of alcohol and/or drugs in a driver’s system. For the five-year study period, the indications for alcohol involvement were 85.8% consistent and the indications of drug involvement were ...


Design, Construction, And Preliminary Investigations Of Otta Seal In Iowa, Sharif Y. Gushgari, Yang Zhang, Ali Nahvi, Halil Ceylan, Sunghwan Kim, Ali Arabzadeh, Charles T. Jahren, Charles Øverby 2019 Iowa State University

Design, Construction, And Preliminary Investigations Of Otta Seal In Iowa, Sharif Y. Gushgari, Yang Zhang, Ali Nahvi, Halil Ceylan, Sunghwan Kim, Ali Arabzadeh, Charles T. Jahren, Charles Øverby

Ali Nahvi

Faced with limited financial resources, pavement engineers constantly seek more durable and economical technologies for road preservations and rehabilitations. Consequently, there have been many efforts to study resurfacing strategies, including various types of sealing for local roads. Among different sealing methodologies, Otta seal is a technique that has not yet been sufficiently studied in the U.S.A. For this investigation, the first Otta seal site in the state of Iowa was constructed using a double-layer Otta seal design over 6.4 km of cracked asphalt pavement. Otta seal design and construction details are documented and discussed, and test sections ...


Polyurethane-Carbon Microfiber Composite Coating For Electrical Heating Of Concrete Pavement Surfaces, Alireza Sassani, Ali Arabzadeh, Halil Ceylan, Sunghwan Kim, Kasthurirangan Gopalakrishnan, Peter C. Taylor, Ali Nahvi 2019 Iowa State University

Polyurethane-Carbon Microfiber Composite Coating For Electrical Heating Of Concrete Pavement Surfaces, Alireza Sassani, Ali Arabzadeh, Halil Ceylan, Sunghwan Kim, Kasthurirangan Gopalakrishnan, Peter C. Taylor, Ali Nahvi

Ali Nahvi

Electrically-heated pavements have attracted attention as alternatives to the traditional ice/snow removal practices. Electrically conductive polymer-carbon composite coatings provide promising properties for this application. Based on the concept of joule heating, the conductive composite can be utilized as a resistor that generates heat by electric current and increases the surface temperature to melt the ice and snow on the pavement surface. This research investigates the feasibility of applying an electrically conductive composite coating made with a Polyurethane (PU) binder and micrometer-scale carbon fiber (CMF) filler as the electrical heating materials on the surface of Portland cement concrete (PCC) pavements ...


Polyurethane-Carbon Microfiber Composite Coating For Electrical Heating Of Concrete Pavement Surfaces, Alireza Sassani, Ali Arabzadeh, Halil Ceylan, Sunghwan Kim, Kasthurirangan Gopalakrishnan, Peter C. Taylor, Ali Nahvi 2019 Iowa State University

Polyurethane-Carbon Microfiber Composite Coating For Electrical Heating Of Concrete Pavement Surfaces, Alireza Sassani, Ali Arabzadeh, Halil Ceylan, Sunghwan Kim, Kasthurirangan Gopalakrishnan, Peter C. Taylor, Ali Nahvi

Alireza Sassani

Electrically-heated pavements have attracted attention as alternatives to the traditional ice/snow removal practices. Electrically conductive polymer-carbon composite coatings provide promising properties for this application. Based on the concept of joule heating, the conductive composite can be utilized as a resistor that generates heat by electric current and increases the surface temperature to melt the ice and snow on the pavement surface. This research investigates the feasibility of applying an electrically conductive composite coating made with a Polyurethane (PU) binder and micrometer-scale carbon fiber (CMF) filler as the electrical heating materials on the surface of Portland cement concrete (PCC) pavements ...


Polyurethane-Carbon Microfiber Composite Coating For Electrical Heating Of Concrete Pavement Surfaces, Alireza Sassani, Ali Arabzadeh, Halil Ceylan, Sunghwan Kim, Kasthurirangan Gopalakrishnan, Peter C. Taylor, Ali Nahvi 2019 Iowa State University

Polyurethane-Carbon Microfiber Composite Coating For Electrical Heating Of Concrete Pavement Surfaces, Alireza Sassani, Ali Arabzadeh, Halil Ceylan, Sunghwan Kim, Kasthurirangan Gopalakrishnan, Peter C. Taylor, Ali Nahvi

Ali Arabzadeh

Electrically-heated pavements have attracted attention as alternatives to the traditional ice/snow removal practices. Electrically conductive polymer-carbon composite coatings provide promising properties for this application. Based on the concept of joule heating, the conductive composite can be utilized as a resistor that generates heat by electric current and increases the surface temperature to melt the ice and snow on the pavement surface. This research investigates the feasibility of applying an electrically conductive composite coating made with a Polyurethane (PU) binder and micrometer-scale carbon fiber (CMF) filler as the electrical heating materials on the surface of Portland cement concrete (PCC) pavements ...


Polyurethane-Carbon Microfiber Composite Coating For Electrical Heating Of Concrete Pavement Surfaces, Alireza Sassani, Ali Arabzadeh, Halil Ceylan, Sunghwan Kim, Kasthurirangan Gopalakrishnan, Peter C. Taylor, Ali Nahvi 2019 Iowa State University

Polyurethane-Carbon Microfiber Composite Coating For Electrical Heating Of Concrete Pavement Surfaces, Alireza Sassani, Ali Arabzadeh, Halil Ceylan, Sunghwan Kim, Kasthurirangan Gopalakrishnan, Peter C. Taylor, Ali Nahvi

Halil Ceylan

Electrically-heated pavements have attracted attention as alternatives to the traditional ice/snow removal practices. Electrically conductive polymer-carbon composite coatings provide promising properties for this application. Based on the concept of joule heating, the conductive composite can be utilized as a resistor that generates heat by electric current and increases the surface temperature to melt the ice and snow on the pavement surface. This research investigates the feasibility of applying an electrically conductive composite coating made with a Polyurethane (PU) binder and micrometer-scale carbon fiber (CMF) filler as the electrical heating materials on the surface of Portland cement concrete (PCC) pavements ...


Mathematical Models Of Magnetic Chains Of Electron Electromagnetic Modifiers With Fluid Meter Measuring Fluid Surface, S.F. Amirov, A.O. Ataullaev, S.H. Jumabaev 2019 Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan

Mathematical Models Of Magnetic Chains Of Electron Electromagnetic Modifiers With Fluid Meter Measuring Fluid Surface, S.F. Amirov, A.O. Ataullaev, S.H. Jumabaev

Journal of Tashkent Institute of Railway Engineers

Mathematical models of magnetic circuits of electromagnetic flow transducers with an annular channel have been developed, taking into account the distribution of the parameters of the magnetic circuit and leakage fluxes closed through non-working air gaps. The possibility of compensating for the difference in magnetic resistance of coaxially arranged concentric ferromagnetic cores due to the difference in their circumference by selecting the thickness of the cores is shown.


The Study Of Magnetic Circuits With Distributed Magnetizing Windings, S.F. Amirov, K.K. Jurayeva, O.T. Boltayev 2019 Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan

The Study Of Magnetic Circuits With Distributed Magnetizing Windings, S.F. Amirov, K.K. Jurayeva, O.T. Boltayev

Journal of Tashkent Institute of Railway Engineers

By research of magnetic chains of new magnetoelastic sensors of efforts with the distributed magnetizing windings by method of drawing up the equivalent circuit it is shown that at rather large number of the cascade connected sites of a magnetic chain and accounting of distribution of the magnetizing forces of sections of a winding of excitement decrease in an error of calculation of magnetic chains with the distributed parameters is reached essential (to 23%). It is established that magnetic tension along a magnetic chain is distributed not linearly and changes the sign in a point of a magnetic neutral, and ...


Stability Of Slopes Of Embankments Of Railway Access Road To Jsc "Shargunkumir", U.E. Ergashev, N.I. Begmatov, F.F. Eshonov 2019 Research Center “Track Infrastructure and Wheel-Rail Interaction Issues”, JSC “Railway Research Institute” (JSC “VNIIZhT”) (Moscow, Russia)

Stability Of Slopes Of Embankments Of Railway Access Road To Jsc "Shargunkumir", U.E. Ergashev, N.I. Begmatov, F.F. Eshonov

Journal of Tashkent Institute of Railway Engineers

The article deals with the stability of the embankment slope. The scheme for the calculation and the results of the calculation of the stability of the embankment slope are presented. Based on the calculation results, transverse embankment profiles with a height of more than 12 m are designed and recommended for use


Analysis Of Work Of Passenger Trains On Two-Zone Sections And Automation Of Alerts Issued To Them, H.S. Toxirov, A.M. Bashirova 2019 Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan

Analysis Of Work Of Passenger Trains On Two-Zone Sections And Automation Of Alerts Issued To Them, H.S. Toxirov, A.M. Bashirova

Journal of Tashkent Institute of Railway Engineers

“Uzbekistontimir yollari” JSC makes a great contribution to ensuring the safety of passenger transportation. Passenger traffic is constantly growing and growth is expected in the future, and competition is growing in the suburban passenger transport market. Increasing the size of passenger trains requires even more attention to safety. The article discusses the possibility of organizing a zonal movement on a suburban section X-T and to facilitate the work of the duty officers at the automation station issuing warnings for trains.


Analysis Of Methods For Determining The Resistance Of Differential Scattering Of Synchronous Machines, Taking Into Account The Saturation Of The Magnetic Circuit, А.K. Halbutaeva 2019 Tashkent state technical university named after Islam Karimov, Tashkent, Uzbekistan

Analysis Of Methods For Determining The Resistance Of Differential Scattering Of Synchronous Machines, Taking Into Account The Saturation Of The Magnetic Circuit, А.K. Halbutaeva

Journal of Tashkent Institute of Railway Engineers

The article presents the results of the analysis of published scientific papers, in which one or another method of calculating the resistance of differential scattering of synchronous machines, taking into account the non-linearity of saturation of the magnetic core, is adopted. It is noted that most of these works are performed using the superposition method, intended only for linear systems.


Solving The Problem Of Capacity Of Single-Track Railway Section T-A Located Along The Line Of The Transport Corridor “China-Kyrgyzstan-Uzbekistan”, S.K. Hudajberganov, G.Sh. Ikramov, Sh.Sh. Kajumov 2019 Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan

Solving The Problem Of Capacity Of Single-Track Railway Section T-A Located Along The Line Of The Transport Corridor “China-Kyrgyzstan-Uzbekistan”, S.K. Hudajberganov, G.Sh. Ikramov, Sh.Sh. Kajumov

Journal of Tashkent Institute of Railway Engineers

The main problem of single track railway lines is that the existing capacity does not satisfy the need, resulting in the need to apply a number of measures. This is exactly the problem that exists in the considered junction T-A, which in the future will be a link in the “China-Kyrgyzstan-Uzbekistan” transport corridor. The article provides possible solutions to this problem. The adoption of the optimal solution in the future will solve not only the problem of through put, but also help to improve the qualitative and quantitative indicators of this site.


Principles And Features Of Blockchain Technology Implementation In The Railway Industry, L.F. Kazanskaya, N.A. Drivolskaya 2019 Emperor Alexander I St. Petersburg State Transport University, Saint Petersburg, Russia

Principles And Features Of Blockchain Technology Implementation In The Railway Industry, L.F. Kazanskaya, N.A. Drivolskaya

Journal of Tashkent Institute of Railway Engineers

Objective: to Consider the advantages and disadvantages of using blockchain technology and the possibility of introducing cryptocurrencies in the transport sphere of Russia. Methods: methods of generalization, grouping, comparative analysis, system approach, problem statement, study of literary sources and normative-legislative documents, results of activity, study and generalization of experience were Used. Results: blockchain technology applied to cryptocurrencies is Considered. The principle of operation of the blockchain technology in the transaction of bitcoins between users in relation to the railway industry. The conclusion is made about the problems of introduction of cryptocurrencies as payment instruments in the near future due to ...


Peculiarities Of Corporate Governance On Railway Transport Of The Republic Of Uzbekistan, M.G. Grigoryan, F.Z. Karakulov 2019 Emperor Alexander I St. Petersburg State Transport University, Saint Petersburg, Russia

Peculiarities Of Corporate Governance On Railway Transport Of The Republic Of Uzbekistan, M.G. Grigoryan, F.Z. Karakulov

Journal of Tashkent Institute of Railway Engineers

Peculiarities and problems of the development of corporate governance of the railway company of «Uzbekistan Temir Yo’llari» JSC in the current economic conditions are considered. The relevance of the chosen direction of research is determined by its high significance for the economic, political and geopolitical development of the railway transport of the Republic of Uzbekistan. Political and geopolitical interest is associated with a significant impact on the national economy, which is provided by the railway transport companies of the Republic of Uzbekistan, as well as with the desire for the interaction of other enterprises in order to obtain additional ...


Some Aspects Of Evaluating Economic Efficiency During Thermal Renewal Of External Walls Of Civil Buildings, S.S. Shaumarov, S.I. Kandakhorov 2019 Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan

Some Aspects Of Evaluating Economic Efficiency During Thermal Renewal Of External Walls Of Civil Buildings, S.S. Shaumarov, S.I. Kandakhorov

Journal of Tashkent Institute of Railway Engineers

This article presents the results of calculations to determine the payback period for the installation of additional insulation of the outer walls of civil buildings, taking into account the increase in tariffs for thermal energy. From a practical point of view, this calculation allows us to evaluate the economic efficiency of the thermal renewal of the outer walls of civil buildings


Developing Of Microelectronic Block Нсс, A.R. Аzizov, E.K. Аmetova 2019 Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan

Developing Of Microelectronic Block Нсс, A.R. Аzizov, E.K. Аmetova

Journal of Tashkent Institute of Railway Engineers

The issue of developing a microelectronic control block of paired arrows the HCC is discussed in the article. The analysis of the block circuit concept is carried out and it is determined which elements are to be replaced and on which microelectronic devices. Electric circuits are considered that provide automatic recruitment of a train route that contains four circuits. The analysis of the block operation in the circuit of push-button relays, which receive power from the block НСС, was carried out, the calculation of the assumed current strength showed the need to use an optical-relay type Pvg-612 in this circuit.


Features Of Functioning Container Terminal In Supply Chains, D.I. Ilesaliev, Sh.R. Abduvahitov 2019 Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan

Features Of Functioning Container Terminal In Supply Chains, D.I. Ilesaliev, Sh.R. Abduvahitov

Journal of Tashkent Institute of Railway Engineers

The purpose of this article is to study the container terminal as a technical system. In this regard, in this article it is necessary to investigate the functioning of the container terminal, associated with the random nature of the incoming and outgoing containers from the terminal. An example of a method for determining the number of reach players is also given.


Analysis Of Characteristics Of Parabolic And Parabolocylindrical Hubs, Comparison Of Data Obtained On Them, J.R. Kodirov, S.Sh. Khakimova, Sh.M. Mirzaev 2019 Bukhara State University, Bukhara, Uzbekistan

Analysis Of Characteristics Of Parabolic And Parabolocylindrical Hubs, Comparison Of Data Obtained On Them, J.R. Kodirov, S.Sh. Khakimova, Sh.M. Mirzaev

Journal of Tashkent Institute of Railway Engineers

Solar energy technologies can be quickly deployed and have the potential for a global transfer of technology and innovation. In order to manufacture parabolic and parabolic cylindrical concentrators, an analytical review of these two types of solar devices was carried out and, after their creation, experiments were conducted on them in the season of maximum solar radiation. The article also presents data and their comparison for planning subsequent actions of research activities.


Technology Of Strengthening Of Embankment Of Railways Of Sandy Soils With Application Of Geosynthetic Materials, K.S. Lesov 2019 Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan

Technology Of Strengthening Of Embankment Of Railways Of Sandy Soils With Application Of Geosynthetic Materials, K.S. Lesov

Journal of Tashkent Institute of Railway Engineers

This article reduced the technology of strengthening the embankment of the railway roadbed from sandy soils with the use of geosynthetic materials. Constructive and technological solutions execution of work are given


To The Question Of Producing Efficient Construction Materials Based On Waste Of Agricultural Crops, A.I. Adilkhodjayev, I.M. Mahamataliev, A.T. Ilyasov 2019 Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan

To The Question Of Producing Efficient Construction Materials Based On Waste Of Agricultural Crops, A.I. Adilkhodjayev, I.M. Mahamataliev, A.T. Ilyasov

Journal of Tashkent Institute of Railway Engineers

One of the promising areas of agricultural waste use is its use as raw material for the pro-duction of efficient building materials for energy-saving technologies, which is especially im-portant for areas that have a waste of agriculture and are in short supply in easily accessible building materials. On the other hand, an important task of technical policy is now to increase the use of lightweight structures in order to reduce the mass of erected structures, reduce the cost of transport costs and the cost of installing structures. In this regard, the use of dry cotton stems (guzapai) in a specially ...


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