Texas Journal of Engineering and Technology
type: channel
description: Texas Journal of Engineering and Technology provides the opportunity to the authors to publish their original research articles in field of Engineering and Technological Advancements. Frequency of Publication: Monthly Acceptance Notification: 45 Days ISSN (Online): 2770-4491 doi Prefix: 10.62480
publisher: Zien Journals
language: en
publication name: Texas Journal of Engineering and Technology
issn: 2770-4491
copyright: User Rights Under the Creative Commons Attribution-NonCommercial 4.0 International (CC-BY-NC), the author (s) and users are free to share (copy, distribute and transmit the contribution). Rights of Authors Authors retain the following rights: 1. Copyright and other proprietary rights relating to the article, such as patent rights, 2. the right to use the substance of the article in future works, including lectures and books, 3. the right to reproduce the article for own purposes, provided the copies are not offered for sale, 4. the right to self-archive the article.
items: Correlation and regression model of medical clinic quality indicators through ISO 9001:2015 and ISO 7101:2023 standards
items: Improving The Service Life of Road Concrete Under The Effect of Mineral and Chemical Additives
items: Seismic Strength Assessment of An Oil Product Storage Tank Under Full Product Filling Conditions
items: Assessment Of The Safety Of Ultrasonic Equipment Using The Fmea Method
items: The Pedagogical Significance of the Ideas of Labor Education and Career Choice in the Heritage of Eastern Scholars
items: Bibliometric Analysis Of Overall Equipment Effectiveness (OEE)
items: Advantages And Disadvantages Of Using Virtual Laboratory Work In Physics
items: Stability Conditions In Black Hole Problems
items: The influence of rare earth elements on the optical properties of silicon epitaxial films
items: Criteria for Food Product Quality and Safety, Analysis of Factors Affecting the Effectiveness of a Food Safety Management System (FSMS)
items: Classification of Micro Hydropower Plants by Output Voltage Stabilization Methods
items: Development of the Structure and Operating Algorithm of a Micro Hydropower Plant with a Battery-Based Ballast Load
items: Treatment Of Maize Seeds Using An Ultraviolet Irradiation Device
items: Development Of Technological Schemes For Transporting Rock Mass And Management Of The Working Area Of A Deep Quarry
items: Silk Kurt To The Process Of Seed Revival Effect Of Electrotechnological Method
items: Optimization Of The Duration And Power Parameters Of Ultraviolet Radiation Treatment Of Sunflower Seeds
items: Concrete And Reinforced Concrete Technology
items: A new technology for cleaning primary silk fibers from plant impurities in the preparation of raw materials for liquid paper
items: Fire-Resistant Building Materials And Their Safety Standards
items: Methodology and Results of Studying the Electrophysical Properties of Plants
items: Study of the Influence of Electro-Impulse Technology Parameters on Microorganisms in Wastewater
items: Environmental Concerns In Oil Waste Processing
items: Analysis Of The Possibility Of Increasing The Efficiency Of The Ozone Electrosynthesis Process
items: Disinfection Of Drinking Water From E.Coli And Tmc Using A Combined Ultraviolet And Ultrasound Device
items: Experimental Assessment Of The Breaking Strength Of Tross Used In The Management Systems Of Reduced Vehicles
items: Ensuring the reliability of voltage and frequency control in modern power grids
items: Assessment of Power Quality Indicators in Electrical Networks Connected to Distributed Generation Sources
items: Optimization of process heat exchange in a stage drying fruit and vegetable cultures

Correlation and regression model of medical clinic quality indicators through ISO 9001:2015 and ISO 7101:2023 standards
type: item
description: In this article, quality indicators were studied based on international standards ISO 9001:2015 and ISO 7101:2023, and an empirical-statistical analysis was conducted based on the identified quality indicators. The identified model was tested for adequacy based on Student’s and Fisher’s criteria. The identified regression equation was confirmed by statistical analysis (Fisher F-criterion p < 0.001) and high determination coefficients (R2 > 0.94). The models were constructed based on Student’s t-test, and the statistical significance of all regression coefficients was determined. The results of the empirical-statistical analysis show that the application of the requirements of the ISO 9001:2015 and ISO 7101:2023 standards have a direct impact on the determining changes in the quality of medical laboratory services. The identified quality indicators and mathematical models can be applied in other medical laboratories.
subject: Articles
  topic: section
subject: indicator, standard, ISO 9001:2015, F-criterion, model.
  topic: keywords
creator: Komilov Bekzodbek Maxmudjon ugli
creator: Juraev Zafar Botirovich
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-04-22
publication date: 2026-04-22
starting page: 7
ending page: 13
doi: 10.62480/tjet.2026.vol55.pp7-13

Improving The Service Life of Road Concrete Under The Effect of Mineral and Chemical Additives
type: item
description: In the Republic of Uzbekistan, the construction of modern toll roads and highways represents a key infrastructure component that ensures the efficient functioning of transport networks globally. While asphalt and concrete materials traditionally used in road construction have proven somewhat effective, they face challenges related to long-term strength, durability, and environmental impact. This study analyzes composite materials that are fundamentally transforming road and highway construction practices and highlights their potential to overcome existing issues. It evaluates the operational efficiency of complex modified materials in road construction, emphasizing how mineral and chemical additives enhance concrete and pavement strength, resistance to deformation, cold, and aggressive environments. The findings indicate that employing these materials can extend infrastructure service life, reduce maintenance costs, and support environmental sustainability.
subject: Articles
  topic: section
subject: Modern toll roads
  topic: keywords
subject: Road construction
  topic: keywords
creator: Berdiev Obloqul Bobokulovich
creator: Urishbaev Elbek Elmurod o‘g‘li
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-04-07
publication date: 2026-04-07
starting page: 1
ending page: 6
doi: 10.62480/tjet.2026.vol55.pp1-6

Seismic Strength Assessment of An Oil Product Storage Tank Under Full Product Filling Conditions
type: item
description: This study presents technical solutions aimed at reducing the seismic vulnerability of existing storage tanks. Scientific and engineering proposals are developed to enhance the seismic resistance of the tank, and structural strengthening measures are formulated based on numerical analyses performed using the LIRA-SOFT 10.12 software package. Based on the obtained results, effective engineering solutions are proposed to mitigate seismic impacts and improve the overall structural safety and reliability of the tank.(This article was prepared within the framework of the project of the Ministry of Higher Education, Science and Innovation of the Republic of Uzbekistan on the topic of determining the level of seismic resistance of reservoirs in the oil and oil and gas industry and developing measures to reduce seismic risk, scheduled for implementation in 2024-2025)
subject: Articles
  topic: section
subject: LIRA-SOFT 10.12 software
  topic: keywords
subject: seismic loads
  topic: keywords
subject: equivalent stress
  topic: keywords
creator: Phd.Dots.Sh.M.Davlyatov
creator: PhD. O.A.Muminov
creator: A.A.Abdurakhmonov
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-04-17
publication date: 2026-04-17
starting page: 14
ending page: 18
doi: 10.62480/tjet.2026.vol54.pp14-18

Correlation and regression model of medical clinic quality indicators through ISO 9001:2015 and ISO 7101:2023 standards
type: item
description: In this article, quality indicators were studied based on international standards ISO 9001:2015 and ISO 7101:2023, and an empirical-statistical analysis was conducted based on the identified quality indicators. The identified model was tested for adequacy based on Student’s and Fisher’s criteria. The identified regression equation was confirmed by statistical analysis (Fisher F-criterion p < 0.001) and high determination coefficients (R2 > 0.94). The models were constructed based on Student’s t-test, and the statistical significance of all regression coefficients was determined. The results of the empirical-statistical analysis show that the application of the requirements of the ISO 9001:2015 and ISO 7101:2023 standards have a direct impact on the determining changes in the quality of medical laboratory services. The identified quality indicators and mathematical models can be applied in other medical laboratories.
subject: Articles
  topic: section
subject: indicator
  topic: keywords
subject: standard
  topic: keywords
subject: F-criterion
  topic: keywords
subject: model
  topic: keywords
creator: Komilov Bekzodbek Maxmudjon ugli
creator: Juraev Zafar Botirovich
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-04-18
publication date: 2026-04-18
starting page: 7
ending page: 13
doi: 10.62480/tjet.2026.vol54.pp7-13

Assessment Of The Safety Of Ultrasonic Equipment Using The Fmea Method
type: item
description: In this article, we conducted research on the safety of ultrasound equipment using the FMEA method. The work performed in this study was carried out in accordance with the requirements of the international standard “IEC 60601-2-37:2024 Particular requirements for the basic safety and essential performance of ultrasound medical diagnostic and monitoring equipment” and “ISO 14971:2019 (E) Medical devices - Application of risk management for medical devices”. The study was conducted at the “YYY” diagnostic center in Andijan. The study is based on the results obtained from 150 patients over a three-month observation period. During the study, the initial average RPN level was 175.8, and due to corrective measures, it was reduced by 44.7, or 74%. The work in the study is part of the results of my scientific research on the topic “Improvement of the quality assurance system for ultrasound examinations in medicine based on international standard requirements”
subject: Articles
  topic: section
subject: UZI
  topic: keywords
subject: FMEA- Failure Mode Effect Analysis
  topic: keywords
subject: risk analysis
  topic: keywords
creator: Ubaydullayeva Gullola
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-03-25
publication date: 2026-03-25
starting page: 25
ending page: 30
doi: 10.62480/tjet.2026.vol54.pp25-30

The Pedagogical Significance of the Ideas of Labor Education and Career Choice in the Heritage of Eastern Scholars
type: item
description: This article analyzes the pedagogical significance of ideas related to labor education and career choice in the spiritual heritage of Eastern scholars. The study examines the views of Abu Nasr Forobiy, Abu Rayhon Beruniy, Abu Ali ibn Sino, and Alisher Navoiy, highlighting their perspectives on labor, professional skills, and personal development. The article reveals the role of labor as a means of achieving personal maturity, its importance in social development, and its close connection with moral education. It also substantiates that labor education contributes to the formation of essential personal qualities in students, such as responsibility, discipline, patience, and independence. The research findings indicate that the ideas of Eastern thinkers serve as an important methodological basis for guiding students toward professional orientation. It is emphasized that the integration of these ideas into the educational process can enhance students’ conscious career choice, as well as develop their diligence and independent thinking skills
subject: Articles
  topic: section
subject: labor education
  topic: keywords
subject: career choice
  topic: keywords
subject: Eastern scholars
  topic: keywords
creator: Rajabova Dilnoza Zarpo'latovna
creator: Eshmanov Otabek Usanovich
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-03-25
publication date: 2026-03-25
starting page: 21
ending page: 24
doi: 10.62480/tjet.2026.vol54.pp21-24

Bibliometric Analysis Of Overall Equipment Effectiveness (OEE)
type: item
description: Overall equipment effectiveness (OEE) is a key performance indicator used to measure equipment productivity(Overall equipment effectiveness 2008). The purpose of this study is to review and analyze the scientific papers written on OEE(Tang Ho Hwa, Yeo Chiew Tiam, and Ding See Kong 2020). 1377 documents were obtained in the general search; after eliminating duplicates and applying certain inclusion and exclusion criteria, 1308 papers were used for this review. This study provides three main conclusions: During the period 2000-2022, academic interest in this topic has increased and the keywords are maintenance and production, related to the six major losses, lean manufacturing and optimization; a list of authors who have conducted scientific work on the basis of OEE is compiled; and the top 10 countries that conducted scientific work based on OEE are presented based on geographical analysis. VOS viewer software was used to investigate the bibliometric research method and bibliographic display maps(Vinodh 2022; Wudhikarn 2012; Yeo, Chang, and Liu 2021). There are three phases to the bibliometric research process, they are search criteria and source identification, software and data extraction, and then data analysis and interpretation. To our knowledge, several bibliometric comparative reviews on OEE and maintenance have been published. This study serves as a continuation of the above related studies.
subject: Articles
  topic: section
subject: Bibliometrics
  topic: keywords
subject: Overall Equipment Effectiveness
  topic: keywords
subject: Manufacture
  topic: keywords
subject: Maintenance
  topic: keywords
creator: Abdujabborov Obidjon
creator: Makhammadjonov Shakhbozbek
creator: Abduvokhidov Khalilillo
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-03-25
publication date: 2026-03-25
starting page: 15
ending page: 20
doi: 10.62480/tjet.2026.vol54.pp15-20

Advantages And Disadvantages Of Using Virtual Laboratory Work In Physics
type: item
description: In this paper we have considered the problem of implementation of virtual physics labs in higher education institutions, as well as their advantages and disadvantages compared to traditional laboratory practical’s. The importance of supplementing real experiments with virtual ones is highlighted. It is shown that the virtual laboratory is one of the innovations having a significant impact on the modern education system. The virtual laboratory provides practical training with all the existing limitations, such as the tools and materials of practical equipment at universities
subject: Articles
  topic: section
subject: Information technology
  topic: keywords
subject: virtual laboratory
  topic: keywords
subject: traditional experiment
  topic: keywords
creator: Tilovova Turdixol Baratovna
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-03-19
publication date: 2026-03-19
starting page: 8
ending page: 14
doi: 10.62480/tjet.2026.vol52.pp8-14

Stability Conditions In Black Hole Problems
type: item
description: This paper presents a systematic theoretical review of stability conditions in black hole spacetimes. Four interconnected aspects are examined: linear perturbation theory and its effective potential structures, quasinormal mode analysis including spectral instability, nonlinear stability and its rigorous mathematical proofs, and thermodynamic stability covering heat capacity and phase transitions in anti-de Sitter spacetime. The observational connection to gravitational-wave ringdown signals is discussed as empirical validation of the perturbative stability framework. Key open problems are identified alongside prospects offered by next-generation gravitational-wave detectors.
subject: Articles
  topic: section
subject: Black hole stability
  topic: keywords
subject: perturbation theory
  topic: keywords
subject: Quasinormal modes
  topic: keywords
subject: Regge-Wheeler equation
  topic: keywords
creator: Ibodov Rustam Mustafoyevich
creator: Adhamova Ozoda Botir kizi
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-03-10
publication date: 2026-03-10
starting page: 1
ending page: 6
doi: 10.62480/tjet.2026.vol52.pp%p

The influence of rare earth elements on the optical properties of silicon epitaxial films
type: item
description: The results of growing erbium-doped silicon epitaxial layers using two different growth modes are presented: conventional molecular beam epitaxy (MBE) and solid-phase epitaxy (SPE). It is shown that an erbium-doped silicon layer deposited by PFE on a cold substrate and subsequently annealed exhibits more intense photoluminescence at a wavelength of 1.54 µm than layers grown by MBE
subject: Articles
  topic: section
subject: photoluminescence
  topic: keywords
subject: epitaxial film
  topic: keywords
subject: deformation
  topic: keywords
creator: Sayitova S
creator: Saparniyazova G
creator: Sharibaev M.
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-01-22
publication date: 2026-01-22
starting page: 37
ending page: 39
doi: 10.62480/tjet.2026.vol52.pp37-39

Criteria for Food Product Quality and Safety, Analysis of Factors Affecting the Effectiveness of a Food Safety Management System (FSMS)
type: item
description: ISO 22000:2018 specifies requirements for a Food Safety Management System (FSMS) for organizations in the food chain and integrates Codex and HACCP principles. This paper aims to systematize quality and safety criteria for food products using clear indicators and limit values, assess drivers that influence FSMS performance, and propose a composite FSMS Performance Index (FSMS-PI) based on key performance indicators (KPIs). The methodology was built on the Codex CXC 1-1969 (Rev. 2020) GHP/HACCP approach, ISO/TS 22002-1:2009 prerequisite programme (PRP) requirements, and limit values from relevant product standards. As illustrative objects, a criteria registry was developed for wheat flour and refined vegetable oil. For wheat flour, moisture content ≤15.5% (m/m) was selected as a core quality indicator. For refined vegetable oils, acid value ≤0.6 mg KOH/g, peroxide value (PV) ≤10 meq O₂/kg, and limits for Cu ≤0.1 mg/kg and Fe ≤1.5 mg/kg were set as baseline indicators
subject: Articles
  topic: section
subject: FSMS
  topic: keywords
subject: Codex
  topic: keywords
subject: quality criteria
  topic: keywords
creator: Najmiddin Muminov
creator: Akhtam Kosimov
creator: Elyorbek Bakiev
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-01-19
publication date: 2026-01-19
starting page: 27
ending page: 36
doi: 10.62480/tjet.2026.vol52.pp27-36

Classification of Micro Hydropower Plants by Output Voltage Stabilization Methods
type: item
description: Micro hydropower plants play a significant role in decentralized power generation, especially in remote and rural areas. One of the main technical challenges in micro hydropower systems is maintaining stable output voltage under varying load and water flow conditions. This paper presents a systematic classification of micro hydropower plants based on methods used for output voltage stabilization. The advantages, limitations, and application areas of each stabilization approach are analyzed. The proposed classification provides a useful framework for selecting appropriate voltage control strategies in the design and operation of micro hydropower systems
subject: Articles
  topic: section
subject: micro hydropower plant
  topic: keywords
subject: voltage stabilization
  topic: keywords
subject: electronic load controller
  topic: keywords
creator: Ahmedov M.M
creator: Erkinov B.N
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-01-19
publication date: 2026-01-19
starting page: 23
ending page: 26
doi: 10.62480/tjet.2026.vol52.pp23-26

Development of the Structure and Operating Algorithm of a Micro Hydropower Plant with a Battery-Based Ballast Load
type: item
description: Micro hydropower plants (micro-HPPs) play a significant role in providing reliable and sustainable electricity to remote and rural areas. However, one of the main challenges in micro-HPP operation is maintaining stable voltage and frequency under variable load conditions. Traditional ballast load controllers dissipate excess energy as heat, leading to efficiency losses. This paper proposes an improved structural configuration and operating algorithm for a micro hydropower plant with a batterybased ballast load. The proposed system combines an electronic load controller with a battery energy storage system to absorb surplus power, enhance energy utilization, and stabilize operating parameters. The developed control algorithm ensures frequency regulation, optimal battery charging and discharging, and reliable operation of the asynchronous generator. Simulation-based analysis demonstrates that the proposed approach significantly improves overall system efficiency, power quality, and operational flexibility
subject: Articles
  topic: section
subject: micro hydropower plant
  topic: keywords
subject: ballast load
  topic: keywords
subject: battery energy storage
  topic: keywords
creator: Ahmedov M.M
creator: Erkinov B.N
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-01-18
publication date: 2026-01-18
starting page: 19
ending page: 22
doi: 10.62480/tjet.2026.vol52.pp19-22

Treatment Of Maize Seeds Using An Ultraviolet Irradiation Device
type: item
description: The article presents the results of studies on the technological parameters of an electrotechnological device used for pre-sowing ultraviolet treatment of maize seeds, as well as the optimal processing parameters for electrical stimulation and their relationship with crop yield indicators.
subject: Articles
  topic: section
subject: Maize seeds
  topic: keywords
subject: ultraviolet radiation
  topic: keywords
subject: DNA
  topic: keywords
subject: RNA
  topic: keywords
creator: Otakhonov Khusanjon Rakhmatjon oglu
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-01-16
publication date: 2026-01-16
starting page: 14
ending page: 18
doi: 10.62480/tjet.2026.vol52.pp14-18

Development Of Technological Schemes For Transporting Rock Mass And Management Of The Working Area Of A Deep Quarry
type: item
description: The operating conditions of modern industrial vehicles are determined by the increasing depth of mining operations. This trend results in the predominant use of vehicles (over 60%) as assembly units, concentrating vehicle traffic in the working area of deep quarries with their limited space of the Muruntau deep quarry is characterized by a high concentration of traffic, heterogeneity of the transported rock mass, and instability of key parameters. During a shift, 10-15 working faces and 5-10 transfer points are in operation, forming over 100 routes with an average length of 3.73 km
subject: Articles
  topic: section
creator: Ravshanova M. H.
rights: Copyright (c) 2025 Ravshanova M. H. https://creativecommons.org/licenses/by-nc/4.0
date: 2025-11-28
publication date: 2025-11-28
starting page: 15
ending page: 18
doi: 10.62480/tjet.2025.vol50.pp15-18

Development Of Technological Schemes For Transporting Rock Mass And Management Of The Working Area Of A Deep Quarry
type: item
description: The operating conditions of modern industrial vehicles are determined by the increasing depth of mining operations. This trend results in the predominant use of vehicles (over 60%) as assembly units, concentrating vehicle traffic in the working area of deep quarries with their limited space of the Muruntau deep quarry is characterized by a high concentration of traffic, heterogeneity of the transported rock mass, and instability of key parameters. During a shift, 10-15 working faces and 5-10 transfer points are in operation, forming over 100 routes with an average length of 3.73 km. The maximum freight traffic intensity on individual routes reaches over 35,000 m³ of rock mass per shift. The share of face roads along the traffic routes is 15-30%. Up to 80% of the roads have a service life of up to one year. The complexity of operating conditions is exacerbated by the high concentration of mining equipment and minimal excavation space.
subject: Articles
  topic: section
subject: exacerbated
  topic: keywords
subject: operating
  topic: keywords
creator: Ravshanova M. H.
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-11-17
publication date: 2025-11-17
starting page: 15
ending page: 18
doi: 10.62480/tjet.2026.vol52.pp15-18

Silk Kurt To The Process Of Seed Revival Effect Of Electrotechnological Method
type: item
description: In this article Data on the study of the effect of artificial air ionization on the process of reviving mulberry silkworm eggs in the spring of 2025. The results of scientific and practical research on determining the optimal air ion concentration are also presented.
subject: Articles
  topic: section
subject: Aeroion
  topic: keywords
subject: Iraqi worm seed
  topic: keywords
subject: ecology
  topic: keywords
subject: technology
  topic: keywords
creator: Abdunabiyev Dostonjon
creator: Uktamjonov Shermurod
creator: Abdunabiyev Jasurbek
creator: Azamov Islomjon
creator: Mamajonov G‘Ayratjon
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-01-16
publication date: 2026-01-16
starting page: 9
ending page: 13
doi: 10.62480/tjet.2026.vol52.pp9-13

Optimization Of The Duration And Power Parameters Of Ultraviolet Radiation Treatment Of Sunflower Seeds
type: item
description: This study investigated the optimal parameters of ultraviolet (UV) radiation treatment on sunflower (Helianthus annuus L.) seeds. Experiments were conducted on two varieties, Dilbar and Jahongir, to evaluate the effects of radiation intensity (30–90 W), distance (5–15 cm), and exposure time (10–20 minutes) on seed germination as well as seedling root and shoot length using a multi-factor experimental design. Second-order regression equations were developed, and corresponding 3D graphs were constructed. The results identified the optimal conditions for maximum efficiency: total lamp power of 60 W, distance of 10 cm, and exposure time of 15 minutes. The statistical adequacy of the models was confirmed using the Cochran, Student’s t, and Fisher criteria.
subject: Articles
  topic: section
subject: sunflower
  topic: keywords
subject: ultraviolet radiation
  topic: keywords
subject: seed germination
  topic: keywords
creator: Uktomjonov Shermurod
creator: Abdunabiyev Dostonjon
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by-nc/4.0
date: 2026-01-13
publication date: 2026-01-13
starting page: 1
ending page: 8
doi: 10.62480/tjet.2026.vol52.pp1-8

Concrete And Reinforced Concrete Technology
type: item
description: This article examines modern technologies for the production, preparation, and quality control of concrete and reinforced concrete. The features of raw materials, technological stages of production of concrete mixtures, reinforcement, molding, and hardening of reinforced concrete structures are presented. Innovative methods for increasing the strength, durability, and crack resistance of structures through the use of chemical additives, modifying fillers, and composite reinforcement are analyzed.
subject: Articles
  topic: section
subject: Concrete
  topic: keywords
subject: reinforced concrete
  topic: keywords
subject: production technologies
  topic: keywords
creator: Melimurodov Muhammad Raufovich
creator: Khamdamov Tulkin Akhmadovich
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-11
publication date: 2025-12-11
starting page: 7
ending page: 10
doi: 10.62480/tjet.2025.vol51.pp7-10

A new technology for cleaning primary silk fibers from plant impurities in the preparation of raw materials for liquid paper
type: item
description: In the development of the rational technology of purification of prevodchik Uzbek-English ternary Los, it is necessary first of all to take into account the properties of interaction of foreign particles with fibers. The main mass of foreign mixtures of fibrous mass in the primary Los corresponds to fragments of branches or stems on the stalk and dry particles of mulberry tree. With silk fibers, the ilakish strength of the stem branches fluctuates between 1.56 and 2.76 sN teks intervals and mainly depends on the material of the STEM and the hem-budurdig of the surface. The friction coefficient on the surface of plant particles of silk thread is much higher than on the metal surface (except for the straw handle), and the roughness of these Horn surfaces will be higher
subject: Articles
  topic: section
subject: primary los silk fiber
  topic: keywords
subject: plant mixtures
  topic: keywords
subject: fiber mass
  topic: keywords
creator: A.E.Gulamov
creator: A.P.Eshmirzayev
creator: S.K. Kelimbetova
creator: A.M.Tangerov
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-05
publication date: 2025-12-05
starting page: 1
ending page: 6
doi: 10.62480/tjet.2025.vol51.pp1-6

Fire-Resistant Building Materials And Their Safety Standards
type: item
description: This article examines in detail the types of fire-resistant building materials, their physical and chemical properties, their behavior at high temperatures, as well as international and national fire safety standards. The role of concrete, brick, mineral and basalt wool, fire-retardant coatings, intumescent paints, and flame retardants in ensuring the fire resistance of buildings is analyzed. Particular attention is paid to the use of fire-resistant materials in Uzbekistan and their development prospects
subject: Articles
  topic: section
subject: fire-resistant materials
  topic: keywords
subject: fire safety
  topic: keywords
subject: basalt wool
  topic: keywords
subject: mineral insulation
  topic: keywords
creator: Ghaniya Alijon
creator: Jakhongir Khazratkulov
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-11-20
publication date: 2025-11-20
starting page: 12
ending page: 14
doi: 10.62480/tjet.2025.vol50.pp12-14

Methodology and Results of Studying the Electrophysical Properties of Plants
type: item
description: This article discusses methods for studying the electrophysical properties of plants, the importance of bioelectric parameters in determining their physiological state, and experimental results. As a result of the research, it was proven that changes in the capacitance and resistance of plant cell membranes are an important indicator in determining their response to external factors.
subject: Articles
  topic: section
subject: electrophysiology
  topic: keywords
subject: membrane potential
  topic: keywords
subject: plant
  topic: keywords
creator: Xolmirzayev Ilhom Jummayevich
creator: Eshmurodov Sobir Soat o‘g‘li
creator: Qurbonov Asadbek Yo‘lchi o‘g‘li
creator: Normurodov Ulug‘bek Nurmamat o‘g‘li
creator: Qurbonov Jamshid Sherqo‘zi o‘g‘li
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-11-18
publication date: 2025-11-18
starting page: 7
ending page: 11
doi: 10.62480/tjet.2025.vol50.pp7-11

Study of the Influence of Electro-Impulse Technology Parameters on Microorganisms in Wastewater
type: item
description: This paper examines the physical processes accompanying the occurrence of an electric discharge in an aqueous medium, which is a key element of electrohydraulic technologies. Special attention is given to the mechanisms of discharge initiation, the influence of medium parameters (pressure and conductivity), and the characteristics of high-voltage pulses. The study aims to determine the optimal conditions for effective discharge formation and the generation of shock waves used in technological processes of material destruction, treatment, and purification. Experimental data are presented, and the prospects for applying the obtained results in engineering practice are discussed
subject: Articles
  topic: section
subject: electric discharge
  topic: keywords
subject: aqueous medium
  topic: keywords
subject: electrohydraulic effect
  topic: keywords
subject: discharge initiation
  topic: keywords
creator: Aytbaev Nurlan
creator: Abdurahim Berdishev
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-10-27
publication date: 2025-10-27
starting page: 1
ending page: 6
doi: 10.62480/tjet.2025.vol50.pp1-6

Environmental Concerns In Oil Waste Processing
type: item
description: This paper analyzes the impact of oil and petroleum products on the ecosystem, addresses issues of soil pollution by petroleum products, and examines emergency situations involving the release or threat of release of hazardous chemical substances (HCS) due to explosions that cause the destruction of process networks and engineering structures. Furthermore, it presents challenges aimed at minimizing negative consequences and the rational use of natural resources in modern conditions
subject: Articles
  topic: section
subject: Environmental pollution
  topic: keywords
subject: oil refining
  topic: keywords
subject: emissions of harmful substances
  topic: keywords
creator: Ruziev I.Kh
creator: Mirzakobilov B.Yu
creator: Bazarbaev A. A
creator: Shomurodova S.Sh
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-10-23
publication date: 2025-10-23
starting page: 16
ending page: 19
doi: 10.62480/tjet.2025.vol49.pp16-19

Analysis Of The Possibility Of Increasing The Efficiency Of The Ozone Electrosynthesis Process
type: item
description: The article provides information about the existing methods of ozone electrosynthesis and identifies their drawbacks. Based on the analysis of processes in the power supply circuit of ozone generators with sinusoidal and pulse voltage of high duty cycle, the possibility of reducing losses and increasing efficiency, increasing the yield of ozone, is substantiated. The distribution of the electric field intensity over the elements of a cylindrical ozone generator was analyzed when it was powered by a sinusoidal and periodic pulse voltage with a duty cycle of more than 5. It was found that it is possible to generate ozone without pre-cooling and drying the air, or cooling the dielectric barrier with running water
subject: Articles
  topic: section
subject: Ozone
  topic: keywords
subject: electrosynthesis
  topic: keywords
subject: sinusoidal
  topic: keywords
subject: pulse voltages
  topic: keywords
creator: Muzafarov Sh. M
creator: Kilichov O. G
creator: Ruzikulov Z. Z
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-10-13
publication date: 2025-10-13
starting page: 9
ending page: 15
doi: 10.62480/tjet.2025.vol49.pp9-15

Disinfection Of Drinking Water From E.Coli And Tmc Using A Combined Ultraviolet And Ultrasound Device
type: item
description: In this study, a combined ultraviolet (UV) and ultrasound (US) device was proposed for rapid and stable disinfection of drinking water from Escherichia coli and total microbial count (TMC). Experiments were conducted in a flow-through reactor in the range of US (40 kHz; 2.27 W/cm²; 0.28 s) and UV (≈26.7 W/m²; lamp depth 3.6 cm; 4.58 s) parameters. It was observed that the cavitation effects of US weakened cell walls and enhanced the damaging effect of UV radiation at the DNA level; as a result, E. coli and TMC were sharply reduced, and the microbiological stability of water (the period before regrowth) was significantly extended compared to single methods. Maintaining the UV intensity around ~28–30 W/m² and placing the lamp close to the water surface increased the efficiency; in US, frequencies close to 40 kHz gave the best results. The combined mode provided high disinfection efficiency and energy efficiency with low contact time; this creates a convenient platform for practical implementation in small and medium-capacity drinking water systems.
subject: Articles
  topic: section
subject: drinking water disinfection
  topic: keywords
subject: E. coli
  topic: keywords
subject: TMC
  topic: keywords
creator: Djumabayeva Zulfizarkhon Zokirkhon kizi
creator: Abdurahim Berdishev
creator: Turdibayev Abduvali
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-10-13
publication date: 2025-10-13
starting page: 1
ending page: 8
doi: 10.62480/tjet.2025.vol49.pp1-8

Experimental Assessment Of The Breaking Strength Of Tross Used In The Management Systems Of Reduced Vehicles
type: item
description: This article analyzes the reliability of modernized vehicles for people with disabilities and the cables used in them. Steel cables used in mechanical control devices for people with disabilities were investigated. During the research, international and national standards were analyzed, and a methodology for determining the compliance of cables used in manual control systems with established requirements was developed. New technological approaches to testing cables for elongation and tear during the conversion of vehicle foot pedals to manual control are also being considered. The article's results are aimed at testing the ability of people with disabilities to withstand the loads that arise when using vehicles, as well as developing a justification for prohibiting or prohibiting their use and offering solutions
subject: Articles
  topic: section
subject: Modified cars
  topic: keywords
subject: pedals
  topic: keywords
subject: manual control equipment
  topic: keywords
creator: Vokhobov Rustamjon Abdumannob ugli
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-09-18
publication date: 2025-09-18
starting page: 1
ending page: 7
doi: 10.62480/tjet.2025.vol47.pp1-7

Ensuring the reliability of voltage and frequency control in modern power grids
type: item
description: This article extensively covers the issues of stable and reliable voltage and frequency parameter control in modern power systems. With the widespread use of renewable energy sources in the power sector, such as solar and wind power plants, hybrid systems integrated with traditional centralized power grids are emerging. One of the main problems in such systems is the effective elimination of voltage and frequency disturbances caused by variability in production due to natural factors. The article notes that photovoltaic panels can cause short-term but significant voltage fluctuations due to rapid changes in light flux. This can reduce the reliability of equipment in the grid and the quality of supply for users. Therefore, it is necessary to implement highly accurate automated control systems in power grids
subject: Articles
  topic: section
subject: distributed generation sources
  topic: keywords
subject: renewable energy sources
  topic: keywords
creator: Tolipov J.N
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-22
publication date: 2025-08-22
starting page: 5
ending page: 7
doi: 10.62480/tjet.2025.vol47.pp5-7

Assessment of Power Quality Indicators in Electrical Networks Connected to Distributed Generation Sources
type: item
description: This article is devoted to the assessment of power quality indicators in electrical networks connected to distributed generation sources. It discusses key parameters necessary to ensure power quality, such as voltage stability, frequency control, power flows, and harmonics. The article notes that distributed generators can inject power from various sources into the grid, which may lead to changes in network parameters. Therefore, it emphasizes the need for continuous monitoring of network quality. The article also presents the permissible normative values for voltage and current harmonic components. It concludes that, for reliable and stable operation of the power network, the output parameters of distributed generators must remain within established limits
subject: Articles
  topic: section
subject: distributed generation
  topic: keywords
subject: power quality
  topic: keywords
subject: voltage stability
  topic: keywords
subject: frequency control
  topic: keywords
creator: Muratov Kh.M
creator: Tolipov J.N
creator: Saidov A.H
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-15
publication date: 2025-08-15
starting page: 1
ending page: 4
doi: 10.62480/tjet.2025.vol47.pp1-4

Optimization of process heat exchange in a stage drying fruit and vegetable cultures
type: item
description: In work the optimization of process drying frut and vegetable of cultures is considered. The technological mode of course of process heat exchange in elementary layers of a product is certain(determined) by a method of multistage optimization. Taking into account interaction internal and external of the factors is chosen criterion of optimization of process drying fruit and vegetable of cultures.
subject: Articles
  topic: section
subject: Optimization
  topic: keywords
subject: drying
  topic: keywords
subject: system
  topic: keywords
subject: synthesis
  topic: keywords
creator: Hikmatov D. N
creator: Dzhuraev Kh. F
creator: Yamaletdinova M.F
creator: Kholikov A.A
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by-nc/4.0
date: 2025-07-20
publication date: 2025-07-20
starting page: 15
ending page: 19
doi: 10.62480/tjet.2025.vol46.pp15-19