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Articles 54871 - 54900 of 197442

Full-Text Articles in Engineering

The Building Data Genome Project 2, Energy Meter Data From The Ashrae Great Energy Predictor Iii Competition, Clayton Miller, Anjukan Kathirgamanathan, Bianca Picchetti, Pandarasamy Arjunan, Young June Park, Zoltan Nagy, Paul Raftery, W. Brodie Hobson, Zixiao Shi, Forrest Meggers Oct 2020

The Building Data Genome Project 2, Energy Meter Data From The Ashrae Great Energy Predictor Iii Competition, Clayton Miller, Anjukan Kathirgamanathan, Bianca Picchetti, Pandarasamy Arjunan, Young June Park, Zoltan Nagy, Paul Raftery, W. Brodie Hobson, Zixiao Shi, Forrest Meggers

Research Collection College of Integrative Studies

This paper describes an open data set of 3,053 energy meters from 1,636 non-residential buildings with a range of two full years (2016 and 2017) at an hourly frequency (17,544 measurements per meter resulting in approximately 53.6 million measurements). These meters were collected from 19 sites across North America and Europe, with one or more meters per building measuring whole building electrical, heating and cooling water, steam, and solar energy as well as water and irrigation meters. Part of these data was used in the Great Energy Predictor III (GEPIII) competition hosted by the American Society of Heating, Refrigeration, and …

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Resilience Of School Systems Following Severe Earthquakes, Emad M. Hassan, Hussam N. Mahmoud, Bruce R. Ellingwood Oct 2020

Resilience Of School Systems Following Severe Earthquakes, Emad M. Hassan, Hussam N. Mahmoud, Bruce R. Ellingwood

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Natural disasters may have catastrophic and long-lasting impacts on communities' physical, economic, and social infrastructure. Slow recovery of educational services following such events is likely to cause traumatic stress in children, lead families to out-migrate, and affect the community's overall social stability. Methods for quantifying and assessing the restoration process of educational systems and their dependencies on other supporting infrastructure have not received adequate attention. This study introduces, for the first time, a new framework to evaluate the functionality, recovery, and resilience of a school system following severe earthquake events. The framework considers both the quantity and quality of education …

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Determine Socket's Inductance And Contact Resistance By Using Prf Method, Tao Wang, Jun Fan Oct 2020

Determine Socket's Inductance And Contact Resistance By Using Prf Method, Tao Wang, Jun Fan

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, an accurate socket modeling methodology is proposed for signal integrity and power integrity applications using a quasi-static EM solver and considering the contact resistance of the socket which is a non-negligible component in socket modeling. The contact resistance characterization of a specific pogo-pin socket has been conducted by measuring the socket mounted on a specially designed test vehicle. A Parallel Resonance Frequency (PRF) method [1] is used to validate the EM model and to extract the contact resistance accurately.

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Immunity Enhancement Of The Power Distribution Network In Integrated Circuits With Coplanar Meander Lines In Package, Bo Pu, Jun Fan, Wansoo Nah Oct 2020

Immunity Enhancement Of The Power Distribution Network In Integrated Circuits With Coplanar Meander Lines In Package, Bo Pu, Jun Fan, Wansoo Nah

Electrical and Computer Engineering Faculty Research & Creative Works

Integrated circuits suffer from interference in frequency multibands in real scenarios, and this susceptibility allows them to easily malfunction. In this article, a novel miniature coplanar filter in package to enhance the immunity of integrated circuits is proposed. The coplanar structure of the filter can avoid cost issues of the multilayers and can also be implemented in the substrate or interposer of the package, and also in a flexible/foldable board, with normal board, fabrication process. Analysis of the filtering characteristics and design method of a miniature filter with the required stop bands are demonstrated in detail. The designed band-stop filter …

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Ebg Common-Mode 20-Ghz Microstrip And Stripline Filters: Sensitivity To Design Parameters, Marina Y. Koledintseva, Sergiu Radu, Joseph Nuebel Oct 2020

Ebg Common-Mode 20-Ghz Microstrip And Stripline Filters: Sensitivity To Design Parameters, Marina Y. Koledintseva, Sergiu Radu, Joseph Nuebel

Electrical and Computer Engineering Faculty Research & Creative Works

In this article, design and characteristics of 20-GHz electromagnetic bandgap (EBG) common-mode (CM) filters for microstrip (MS) and strip line (SL) differential pairs are considered. CM filter notch (resonance) frequency, depth, and width at the-15 dB level are calculated from the mixed-mode S-parameters. The agreement between the measured and modeled S-parameters of the baseline structures validates the models and allows for further numerical experiments. The systematic analysis of the trends for both MS and SL filter characteristics as functions of various geometrical and material design parameters is presented. Sensitivity to various technological features (conductor surface roughness, trapezoid shape of the …

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A Novel Dual-Band Decoupling Technique, Min Li, Jamal Muhammad Yasir, Kwan Lawrence Yeung, Lijun Jiang Oct 2020

A Novel Dual-Band Decoupling Technique, Min Li, Jamal Muhammad Yasir, Kwan Lawrence Yeung, Lijun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

This article presents a novel dual-band decoupling network (DN) to increase the isolation between two antennas. It is composed of two dual-band Wilkinson power dividers, four additional transmission lines (TLs), and two reactive components. The decoupling formulas are derived from systematic design procedures. Hence, the design parameters of the power divider, lengths of TLs, and reactance of reactive components can be precisely determined to realize high port isolation. Two benchmarks of the two-element symmetric and asymmetric monopole arrays are used to elaborate the design procedure and demonstrate the advantages of proposed DN. Results show that the proposed DN can offer …

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A Novel Subdomain 2d/Q-2d Finite Element Method For Power/Ground Plate-Pair Analysis, Ping Li, Li (Lijun) Jun Jiang, Min Tang, Yao Jiang Zhang, Shuai Xu, Hakan Bagc Oct 2020

A Novel Subdomain 2d/Q-2d Finite Element Method For Power/Ground Plate-Pair Analysis, Ping Li, Li (Lijun) Jun Jiang, Min Tang, Yao Jiang Zhang, Shuai Xu, Hakan Bagc

Electrical and Computer Engineering Faculty Research & Creative Works

Upon excitation by a surface magnetic current, a power/ground plate-pair supports only TMz modes. This means that the magnetic field has only azimuthal components permitting a simple but effective domain decomposition method (DDM) to be used. In the proximity of an antipad, field interactions are rigorously modeled by a quasi-two-dimensional (Q-2D) finite element method (FEM) making use of three-dimensional (3D) triangular prism mesh elements. Since high-order TMz modes are confined in the close proximity of the antipad, field interactions in the region away from the antipad only involve the fundamental mode and are rigorously modeled by a 2D FEM. This …

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Impacts Of Laboratory Vibrations And Laser Flicker Noise On Digital Holography, Douglas E. Thornton, Mark F. Spencer, Christopher A. Rice, Glen P. Perram Oct 2020

Impacts Of Laboratory Vibrations And Laser Flicker Noise On Digital Holography, Douglas E. Thornton, Mark F. Spencer, Christopher A. Rice, Glen P. Perram

Faculty Publications

In this paper, we experimentally demonstrate the impacts of laboratory vibrations and laser flicker noise on digital holography (DH). Specifically, we measure both the vibration efficiency and the coherence efficiency of our DH system at various focal-plane array integration times and path-length differences between the signal and reference. These efficiencies, in practice, contribute to the overall mixing efficiency, which is a measure for how well the detected signal and reference interfere. The results show that when the integration time is ≤1ms, the laboratory vibrations are negligible with a vibration efficiency of 100%; however, when the integration time equals 100 ms, …

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Effect Of Bout Length On Gait Measures In People With And Without Parkinson’S Disease During Daily Life, Vrutangkumar Shah, James Mcnames, Graham Harker, Martina Mancini, Patricia Carlson-Kuhta, John G. Nutt, Mahmoud El-Gohary, Carolin Curtze, Fay Horak Oct 2020

Effect Of Bout Length On Gait Measures In People With And Without Parkinson’S Disease During Daily Life, Vrutangkumar Shah, James Mcnames, Graham Harker, Martina Mancini, Patricia Carlson-Kuhta, John G. Nutt, Mahmoud El-Gohary, Carolin Curtze, Fay Horak

Electrical and Computer Engineering Faculty Publications and Presentations

Although the use of wearable technology to characterize gait disorders in daily life is increasing, there is no consensus on which specific gait bout length should be used to characterize gait. Clinical trialists using daily life gait quality as study outcomes need to understand how gait bout length affects the sensitivity and specificity of measures to discriminate pathological gait as well as the reliability of gait measures across gait bout lengths. We investigated whether Parkinson’s disease (PD) affects how gait characteristics change as bout length changes, and how gait bout length affects the reliability and discriminative ability of gait measures …

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Systematic Power Integrity Analysis Based On Inductance Decomposition In A Multi-Layered Pcb Pdn, Biyao Zhao, Siqi Bai, Samuel Connor, Stephen Scearce, Matteo Cocchini, Brice Achkir, Albert E. Ruehli, Bruce Archambeault, Jun Fan, James L. Drewniak Oct 2020

Systematic Power Integrity Analysis Based On Inductance Decomposition In A Multi-Layered Pcb Pdn, Biyao Zhao, Siqi Bai, Samuel Connor, Stephen Scearce, Matteo Cocchini, Brice Achkir, Albert E. Ruehli, Bruce Archambeault, Jun Fan, James L. Drewniak

Electrical and Computer Engineering Faculty Research & Creative Works

An approach is presented for power integrity analysis on multi-layer printed circuit boards in this paper. Two critical current paths are analyzed. Inductance decomposition is applied to identify the critical parameters that can influence the PDN input impedance. Two types of stack-ups are used to perform sensitivity analysis to illustrate the effectiveness of PDN design guidelines. Based on the analysis of the inductance contribution from different blocks in the PCB PDN, a systematic approach to obtain a complete understanding of PDN behavior is proposed. The approach can be used to provide design guidance in PDN design practice.

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Robust Learning Via Ensemble Density Propagation In Deep Neural Networks, Giuseppina Carannante, Dimah Dera, Ghulam Rasool, Nidhal Carla Bouaynaya, Lyudmila Mihaylova Oct 2020

Robust Learning Via Ensemble Density Propagation In Deep Neural Networks, Giuseppina Carannante, Dimah Dera, Ghulam Rasool, Nidhal Carla Bouaynaya, Lyudmila Mihaylova

Electrical and Computer Engineering Faculty Publications

Learning in uncertain, noisy, or adversarial environments is a challenging task for deep neural networks (DNNs). We propose a new theoretically grounded and efficient approach for robust learning that builds upon Bayesian estimation and Variational Inference. We formulate the problem of density propagation through layers of a DNN and solve it using an Ensemble Density Propagation (EnDP) scheme. The EnDP approach allows us to propagate moments of the variational probability distribution across the layers of a Bayesian DNN, enabling the estimation of the mean and covariance of the predictive distribution at the output of the model. Our experiments using MNIST …

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Multimodal Representation Learning And Set Attention For Lwir In-Scene Atmospheric Compensation, Nicholas M. Westing, Kevin C. Gross, Brett J. Borghetti, Christine M. Schubert Kabban, Jacob Martin, Joseph Meola Oct 2020

Multimodal Representation Learning And Set Attention For Lwir In-Scene Atmospheric Compensation, Nicholas M. Westing, Kevin C. Gross, Brett J. Borghetti, Christine M. Schubert Kabban, Jacob Martin, Joseph Meola

Faculty Publications

A multimodal generative modeling approach combined with permutation-invariant set attention is investigated in this paper to support long-wave infrared (LWIR) in-scene atmospheric compensation. The generative model can produce realistic atmospheric state vectors (T;H2O;O3) and their corresponding transmittance, upwelling radiance, and downwelling radiance (TUD) vectors by sampling a low-dimensional space. Variational loss, LWIR radiative transfer loss and atmospheric state loss constrain the low-dimensional space, resulting in lower reconstruction error compared to standard mean-squared error approaches. A permutation-invariant network predicts the generative model low-dimensional components from in-scene data, allowing for simultaneous estimates of the atmospheric state and TUD …

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Review Of Multimode Space Propulsion, Joshua L. Rovey, Christopher T. Lyne, Alex J. Mundahl, Nicolas Rasmont, Matthew S. Glascock, Mitchell J. Wainwright, Steven P. Berg Oct 2020

Review Of Multimode Space Propulsion, Joshua L. Rovey, Christopher T. Lyne, Alex J. Mundahl, Nicolas Rasmont, Matthew S. Glascock, Mitchell J. Wainwright, Steven P. Berg

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Multimode propulsion is the integration of two or more propulsive modes with shared propellant into a single spacecraft propulsion system. Multimode propulsion is emerging as an enabling technology that promises enhanced capabilities for spacecraft and space missions and can therefore play an important role in the future of in-space propulsion. Multimode propulsion has the potential to provide unprecedented flexibility and adaptability to spacecraft as a direct result of shared propellant and can provide mass savings for certain missions. These benefits can apply regardless of spacecraft size. Additional mass savings may be realized by sharing thruster hardware between modes, especially for …

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Inkjet-Printed Ti3c2tx Mxene Electrodes For Multimodal Cutaneous Biosensing, Abdulelah Saleh, Shofarul Wustoni, Eloise Bihar, Jehad K. El-Demellawi, Yizhou Zhang, Adel Hama, Victor Druet, Arief Yudhanto, Gilles Lubineau, Husam N. Alshareef, Sahika Inal Oct 2020

Inkjet-Printed Ti3c2tx Mxene Electrodes For Multimodal Cutaneous Biosensing, Abdulelah Saleh, Shofarul Wustoni, Eloise Bihar, Jehad K. El-Demellawi, Yizhou Zhang, Adel Hama, Victor Druet, Arief Yudhanto, Gilles Lubineau, Husam N. Alshareef, Sahika Inal

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Among the existing two-dimensional materials, MXenes, i.e. transition metal carbides, nitrides and/or carbonitrides, stand out for their excellent electrochemical properties. Due to their high charge storage capacity, metal-like conductivity, biocompatibility as well as hydrophilicity, Ti3C2Tx MXene-based inks hold great potential for scalable production of skin conformable electronics via direct printing methods. Herein, we develop an aqueous MXene ink and inkjet-print MXene films on freestanding, flexible, and conducting polymer-based substrates. These skin-adherent MXene electrodes detect electrocardiography signals with high signal-to-noise ratio while exhibiting preserved electrical performance after 1000 cycles of bending with a 50 d long shelf life in ambient conditions. …

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Assessing The Impact Of Green Roof On The Building Performance A Case Study Of Outpatient Pediatric Clinics In Lebanon, Louay Ghezzawi, Hiba Mohsen Sep 2020

Assessing The Impact Of Green Roof On The Building Performance A Case Study Of Outpatient Pediatric Clinics In Lebanon, Louay Ghezzawi, Hiba Mohsen

Architecture and Planning Journal (APJ)

Several studies have proved that incorporating the use of green roofs can optimize overall building performance and increase the building’s energy efficiency. This review targets different scenarios of green roof as a solution in addition to studying its various types and their effect in order to better optimize the results. With a structured analysis and cohesive interpretations through simulations and analytical cooling design extracted from EnergyPlus modeler, findings were assessed, and a conclusion was set to choose the best scenario. In addition to, other parameters that were taken into consideration which specifies the level of the green roof covered area …

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Optimum Tree Distribution For Pedestrian Walkway Of Commercial Street In Tripoli City, Yasmine Khaled Amkieh Sep 2020

Optimum Tree Distribution For Pedestrian Walkway Of Commercial Street In Tripoli City, Yasmine Khaled Amkieh

Architecture and Planning Journal (APJ)

Designing a developed urban city requires sufficient methods to plan its principal parts that include walkways. These walkways are pedestrian connections that contain sidewalks, paths, and highway shoulders. Planning and executing a complete sidewalk require a fulfillment existence of all its parts from the pedestrian walkway, the street furniture, and the frontage zone. The objective of this paper is to increase the surface shadows for the pedestrian walking areas, to attract more people which, increase the economic value of the commercial street. Tripoli city and in particular “Achir El-Dayeh” street is the main case study, as the pedestrian walkway in …

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Role Of Artificial Lighting In Emphasizing The Entrance Approaches, Maged Youssef Sep 2020

Role Of Artificial Lighting In Emphasizing The Entrance Approaches, Maged Youssef

Architecture and Planning Journal (APJ)

Building's entrance is metaphorically a threshold between two realms, the first is an outdoor exposed to climatic change, hazards, and environmental factors, while the second is controlled, monitored, and determined to certain functions. It plays an important role in enriching users' experience. Moreover, it is the first impression a visitor takes to evaluate a whole building. Architecturally, the entrance is a very special part in the elevation, distinguished and emphasized by different design approaches. One of these approaches is using lighting. There is a direct connection between recognition of a space and light assimilation in it. From sunset to dawn, …

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2019-2020 Annual Security And Fire Report - Sayre Campus, Southwestern Oklahoma State University Sep 2020

2019-2020 Annual Security And Fire Report - Sayre Campus, Southwestern Oklahoma State University

ANNUAL SECURITY & FIRE REPORTS

This is the 2019-2020 Annual Security and Fire Report of the Sayre Campus by Southwestern Oklahoma State University.

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2019-2020 Annual Security And Fire Report - Weatherford Campus, Southwestern Oklahoma State University Sep 2020

2019-2020 Annual Security And Fire Report - Weatherford Campus, Southwestern Oklahoma State University

ANNUAL SECURITY & FIRE REPORTS

This is the 2019-2020 Annual Security and Fire Report of the Weatherford Campus by Southwestern Oklahoma State University.

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Memory Foreshadow: Memory Forensics Of Hardware Cryptocurrency Wallets – A Tool And Visualization Framework, Tyler Thomas, Mathew Piscitelli, Ilya Shavrov, Ibrahim Baggili Sep 2020

Memory Foreshadow: Memory Forensics Of Hardware Cryptocurrency Wallets – A Tool And Visualization Framework, Tyler Thomas, Mathew Piscitelli, Ilya Shavrov, Ibrahim Baggili

Electrical & Computer Engineering and Computer Science Faculty Publications

We present Memory FORESHADOW: Memory FOREnSics of HArDware cryptOcurrency Wallets. To the best of our knowledge, this is the primary account of cryptocurrency hardware wallet client memory forensics. Our exploratory analysis revealed forensically relevant data in memory including transaction history, extended public keys, passphrases, and unique device identifiers. Data extracted with FORESHADOW can be used to associate a hardware wallet with a computer and allow an observer to deanonymize all past and future transactions due to hierarchical deterministic wallet address derivation. Additionally, our novel visualization framework enabled us to measure both the persistence and integrity of artifacts produced by the …

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Enhanced Optical Propulsion And Material Analysis For Multiple Rayleigh Particles, Christopher Alan Jones Sep 2020

Enhanced Optical Propulsion And Material Analysis For Multiple Rayleigh Particles, Christopher Alan Jones

Student Theses and Dissertations

Studies have shown that materials exhibiting specific attributes can be propelled forward by photons of varying wavelengths within the visible light spectrum. This is enhanced by a momentum reversal due to the wave scattering of ejected electrons. Research has indicated that these effects are due to a particle's size and shape. Furthermore, these effects can lead to a tunability within cylinders/rods. The present research aims to provide an approximate macroscopic solution using Rayleigh theory to assess single and multiple particle forces for both ideal and causal systems. The forces are acquired through the integration of the Minkowski stress tensor just …

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Neural Network Based Life Cycle Cost Analysis Of Metal Culverts Due To Corrosion Risks In Arkansas, Md Ariful Hasan Sep 2020

Neural Network Based Life Cycle Cost Analysis Of Metal Culverts Due To Corrosion Risks In Arkansas, Md Ariful Hasan

Student Theses and Dissertations

Corrosion potential of metallic structures in alluvial soils is governed by chemical and electromagnetic properties of the soils. Geotechnical engineers are generally more concerned about soil types and their physical and mechanical properties than the chemical properties. The main objective of this study is to analyze the geotechnical, electrochemical and electromagnetic properties of soils in Arkansas. Important parameters (e.g., soil resistivity) related to corrosion potential of metal culverts have been predicted through neural network (NN) models. The developed NN models have been trained and validated using laboratory test results of soil samples collected from Arkansas Department of Transportation (ARDOT), survey …

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Askug System - Integration Of "Green Technologies" In The Process Of Effective Management Of Natural Resources, М.N. Musaev Sep 2020

Askug System - Integration Of "Green Technologies" In The Process Of Effective Management Of Natural Resources, М.N. Musaev

Technical science and innovation

The article presents the results of a study to reduce greenhouse gases through the introduction of green technologies. Different countries are making rather tough decisions to reduce greenhouse gas emissions. The basics of environmental protection and conservation of natural resources are considered, the problems of green technology are analyzed. Uzbekistan has not yet taken tough measures to reduce greenhouse gases. But there are positive trends due to the introduction of green technology to reduce emissions. Also, green technology is being introduced into the gas transportation system, which will lead to the saving of natural resources. The ASKUG system for gas …

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Purification Of Polluted Water At The Mubarek Gas Processing Plant Ltd Using By Ion Exchangers, Z. Sh. Nazirov Sep 2020

Purification Of Polluted Water At The Mubarek Gas Processing Plant Ltd Using By Ion Exchangers, Z. Sh. Nazirov

Technical science and innovation

The full chemical composition of the circulating and make-up water of the Mubarek Gas Processing Plant JSC “Uzbekneftigaz” has been investigated. Raw water sources are the Kui-Mazorsk reservoir and groundwater (artesian water).The amount of released impurities after their softening by passing through the layers of the KU-2-8 cation exchanger is determined. This method is simple, effective and energy-saving in water treatment, LLC "Mubarek" GPP.

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Study On The Grinding Time Duration Impact On The Properties Of Paper From Alternative Raw Materials, Z. K. Galimova Sep 2020

Study On The Grinding Time Duration Impact On The Properties Of Paper From Alternative Raw Materials, Z. K. Galimova

Technical science and innovation

Both raw and recycled fiber materials are used for paper production. The increase in percentage use of the latter is due to their paper-forming properties, availability and low cost. The article explores the possibility of using pulp from the inner layer of mulberry twig bark. Mulberry twigs, after removing leaves, which are the main raw material in silk production, have no practical industrial application. Recycling waste - mulberry branches - for the production of pulp is therefore relevant as it is aimed at solving raw material and environmental problems. The purpose of this work is to use local raw materials …

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Modification Of Composition Of Salinity Inhibitors Based On Organophosphonates And Acrylic Acid, B. Kadirov Sep 2020

Modification Of Composition Of Salinity Inhibitors Based On Organophosphonates And Acrylic Acid, B. Kadirov

Technical science and innovation

Chemical and mineralogical compositions of mineral deposits and acidic precipitations have been studied, and synergistically effective compositions of inhibitors of salt deposits have been selected based on -PO3H2 and COOH containing organic compounds. The article proposes a formulation of a mineral salts deposit inhibitor corresponding to regulatory indicators (not less than 90%) for the protection of municipal boiler houses and industrial equipment, comparative results of the industrial preparation Komperex-710. The obtained compositions were found to be effective inhibitors in concentrations of 8-12 mg/l in waters with calcium and magnesium chlorides Chimbaia, Turtkulia and Biruni with hardness of …

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Prospects Of The Development Of Unmanned Aerial Vehicles (Uavs), Rakhimjon Shokirov, Nuriddin Abdujabarov, Takhirov Jonibek, Kadamboy Saytov, Saidbek Bobomurodov Sep 2020

Prospects Of The Development Of Unmanned Aerial Vehicles (Uavs), Rakhimjon Shokirov, Nuriddin Abdujabarov, Takhirov Jonibek, Kadamboy Saytov, Saidbek Bobomurodov

Technical science and innovation

This article outlines the current state of research and development for autonomous unmanned aircraft for civil use. Specifically, the history of UAVs for civil use, research and development in the world, and the topics and prospects for the control and operation of autonomous UAVs for civil use are defined. The perspectives for the use of unmanned aerial vehicles (UAVs) are addressed, programs due to the formation and problems preventing the use of UAVs are listed, and ways of increasing competitiveness are taken into account. This article provides an overview of research involving the advancement of UAV technology for the management …

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Evaluation Of The Effectiveness Of Channel Level Protocoll Parameters, Sh. S. Karimov, Y. Cho Sep 2020

Evaluation Of The Effectiveness Of Channel Level Protocoll Parameters, Sh. S. Karimov, Y. Cho

Technical science and innovation

There is justification for a simulation model for assessing channel level protocols. The effect of the data link layer protocol parameters on the data transfer function is analyzed. The data link protocol parameters have been specified and split into two categories, which are customizable and not configurable. In the work, parameters such as the acceptable information frame size are related in detail to the tunable data link protocol parameter; service personnel format; time-out value; unconfirmed frame window size, etc. That nominal data transfer rate, error-correcting codes used, etc. are non-configurable parameters.

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Increasing The Roughness Of The Procedure For Evaluating A Vector Of The Condition Of Objects To The Influence Of Uncertainty Factors, U.F. Mamirov Sep 2020

Increasing The Roughness Of The Procedure For Evaluating A Vector Of The Condition Of Objects To The Influence Of Uncertainty Factors, U.F. Mamirov

Technical science and innovation

Algorithms for increasing the roughness of the procedure for assessing the state vector of control objects to the influence of uncertainty factors are given. Expressions are obtained for extended state vectors and observations. Stable inversion algorithms are given for a nondegenerate block matrix with the allocation of its left and right zero divisors of maximum rank. The presented stable computational procedures allow us to regularize the problem of synthesis of algorithms for estimating the parameters of regulators in adaptive control systems with a customizable model and to improve the quality indicators of control processes under conditions of parametric uncertainty

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Research Of Optoelectronic Voltage Relay, E.Kh. Abduraimov, A.N. Rasulov, D.Kh. Khalmanov, N.E. Hamidova Sep 2020

Research Of Optoelectronic Voltage Relay, E.Kh. Abduraimov, A.N. Rasulov, D.Kh. Khalmanov, N.E. Hamidova

Technical science and innovation

Article represents using theoretical analysis and experimental studies of nonlinear resistive circuits and it was developed that it is important to use such circuits as power contactless switching devices to ensure a quality power supply for consumers. The paper deals with the problems of designing lightweight, reliable, high-speed contactless optoelectronic voltage relays with extended service life, combining a responsive device and a strong executive body with a sinusoidal form of the load voltage curve. Theoretical studies of transients in nonlinear dynamic circuits result in the solution of differential condition equations by a computational method built on the basis of optoelectronic …

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