Texas Journal of Engineering and Technology

Physical Basics of Semiconductors

Kodirov Ismoil Norkobilovich — 2023-11-06

The article outlines the fundamentals of materials science and semiconductor technology, which allow one to gain a general understanding of the basic laws of formation of semiconductor phases, the mechanisms of their growth, production conditions, as well as to gain an understanding of the most widely used industrial methods for the production of bulk semiconductors and epitaxial semiconductor films with specified properties. This knowledge is necessary for students specializing in semiconductor physics to understand the specialized literature. Indeed, almost every article devoted to the study of the properties of semiconductors or the creation of devices based on them begins with a description of the method for producing the material, since its properties, as will be shown in this course, are closely related to the method of its production.

Mathematical Modeling Of The Quality Indicators Of TwoLayer Knitted Fabrics Obtained On Flat Two-Needle Knitting Machines With The Needles Placed In A Rubber Arrangement

Z.J. Borotov — 2023-11-06

In the article presents the results of mathematical modeling of the quality indicators of double-layer knitted fabrics on double-bed flat knitting machines and the law of the influence of the structure of knitted fabric on the consumption of weed is determined

Mode Characteristics of a Valve Converter Based on A Series Stand-Alone Current Inverter

Shukhrat Umarov — 2023-11-08

The article analyzes the operating characteristics of a valve converter based on a series autonomous current inverter based on computer studies. It is shown that the valve converter circuit based on a series autonomous current inverter with a thyristor-choke compensating device not only provides the ability to regulate and stabilize the output parameters of the converter, but also helps to improve the dynamic properties of the converter due to the appearance of an additional recharging circuit for the switching capacitor. The obtained operating characteristics make it possible to determine the value of the control range that ensures stabilization of the output voltage while maintaining switching stability and, thereby, facilitates the determination of the optimal parameters of a valve converter based on a series autonomous current inverter

Improvement of Methods of Processing Reliable Information in Managing Building and Construction Cadasters

B. Uspankulov — 2023-11-08

Carrying out the work on the basis of the developed instructions will help to solve a number of problems in the future. One of them is to create objective information about buildings and constructions. Because, the information of the state cadastre of buildings and constructions is initially formed basing on information about the technical parameters of the land plot, buildings and constructions in field conditions. In particular, the initial data will serve as a basis for the future. Therefore, it is very important to correctly form the data obtained in field conditions. For this, it is necessary to follow guidelines created and approved on the basis of established requirements

Medical genetic counseling

Mavlonova Barno Madaminovna — 2023-11-08

This article provides an in-depth overview of genetic counseling, its methods, and its impact on patients and families. Through a thorough literature analysis, we explore the evolving landscape of genetic counseling, its challenges, and the role of emerging technologies. The methods section details the genetic counseling process, and the results section highlights the significant benefits and challenges. In the discussion, we address the ethical and societal implications, concluding with suggestions to improve and expand the field of medical genetic counseling.

The Solution of Economic Tasks with the Help of Probability Theory

Yuldashev Sanjarbek Arslon o‘g‘li — 2023-11-11

The article deals with economic problems, the solution of which occurs using probability theory. The process of solving some economic problems with the help of probability theory is shown. The authors, using the example of an economic problem solved with the help of the formula of total probability, described in detail the course of its solution. An example of an economic problem solved using the Bernoulli formula with a complete description of the problem solution itself is also given. The article noted the importance of economists owning this material, since the correct application of the methods of probability theory helps to correctly predict the possibility of success or failure with maximum accuracy. In this regard, the authors boldly emphasize that economists need knowledge of the theory of probabilities for application in their professional activities, which will help improve the efficiency of the economy

Synergizing Wearable Sensors and Robots: Transforming Healthcare and Assistive Technologies for Individuals with Disabilities

Saja Sattar Jabar — 2023-11-16

Wearable sensors and robotics are game-changers in the healthcare and assistive technology sectors in today's age of fast technological breakthroughs. This research delves into the extensive benefits of these technologies, illuminating their present uses, astounding developments, and promising future. It examines the complicated problems that wearable sensors and robotics have to deal with and suggests solutions to help them advance. Researchers hope that by using these technological advancements, the future will be more accessible and empowering for those with impairments

"Is it possible that there will be a water shortage in Uzbekistan by 2030?"

Asadbek Oybekov Sherali ugli — 2023-11-16

In this article, MHTI experts studied how the water shortage in Uzbekistan affects the agricultural sector of arid regions. By 2030, there may be a shortage of 7 billion cubic meters of water in the country. As a result, there is a possibility that Uzbekistan will fall into the ranks of 33 countries with water shortages. The experts of the Institute of Macroeconomic and Territorial Research (MHTI) have analyzed the impact of water shortage in Uzbekistan on the agricultural sector of arid regions. have been studied and given data.

Importance of algae

Asadbek Oybekov Sherali ugli — 2023-11-16

This article provides information about types, diversity, morphological structure, reproduction methods, living environment, cellular structure, and their importance in human life and on earth

Analysis Development Costs And Benefits Facility Processing Garbage (Manado City Case Study)

Ari Z. Kifli — 2023-11-20

Manado City is one of the second largest cities on the northern island of Sulawesi with a population growth rate that continues to increase from year to year, in 2013 the population reached 419,596 people, and in 2020 the population reached 451.616 people, in 2020 the waste produced was 121.504,81 tons / year with a population of 451,616, and in 2021 the waste produced is 124,059.81 Tons / Year with a population of 453.182, the amount of waste that can be managed by the Manado City Government is 107.408 Tons / Year (86.58%), for details of waste managed is 17.618 Tons / Year (14.20%) waste processed at the Sumompo Landfill is 89.790 Tons / Year (72.38%), of the amount of waste produced is not supported by adequate waste processing facilities, in Manado City waste processing facilities such as TPS 3R = 2 units, waste banks = 3 units, compost houses = 0 units, Incinerators = 4 units. Based on this background, waste processing facilities are examined in order to analyze the costs and benefits of developing waste treatment facilities in Manado City. using three variables to obtain the highest Net Value and BCR values, for Net Value and BCR values from the first alternative Net Value of Rp. 9.657.293.149,41 with a BCR value of 6.90, for the second alternative Net Value -Rp 480.866.953,75,- with a Benefit Cost Ratio value of "0.67", and for the third alternative Net Value of Rp. 235.498.801,75 with a Benefit Cost Ratio value of "1.30", The first alternative is alternative which is recommended to be applied because the BCR value > 1. From these results, it is expected to provide information to waste management authorities in Manado City in choosing alternative 3R TPS based on Net Value, Benefit Cost Ratio and Analyzes Sensitivity.

Bioecology of the Monkey (Rubus) Genus and Species Introduced to Uzbekistan

Zulkhumor Hotamova — 2023-11-20

The article is devoted to the topic “The family of monkeys brought to Uzbekistan, the bioecology of the species.” Introduces the genus of Rubus and the bioecology of the species

Precise Classification of Brain Magnetic Resonance Imaging (MRIs) using COOT optimization

Dheyaa Jabbar Luaibi — 2023-11-24

This research demonstrated a hybrid approach that combined machine learning algorithms with expert medical knowledge to achieve precise classification of brain MRIs. By harnessing the capabilities of artificial intelligence, these computer-aided methods have the potential to assist healthcare professionals in making well-informed decisions, leading to better patient outcomes. One of the primary advantages of computer-aided diagnosis is its ability to rapidly and efficiently analyze large volumes of medical data. This technology can process numerous MRI scans in a fraction of the time it would take for a human expert to review them individually. This not only saves valuable time but also minimizes the risk of human error or oversight. Furthermore, computer-aided diagnosis systems can detect subtle patterns or abnormalities that might elude even the most experienced radiologists. By analyzing thousands of MRI images and comparing them with established patterns associated with different diseases, these systems can identify potential indicators that might be missed by human observers alone. This heightened accuracy can significantly enhance early detection rates and facilitate timely intervention, ultimately saving lives. The proposed classification system utilized GLCM to extract a comprehensive set of features that capture the spatial relationships between pixels in an image. These features effectively represent significant patterns and structures in the image, thereby facilitating accurate classification. Additionally, the approach incorporated COOT optimization, an optimization technique, to enhance the feature extraction process beyond mere feature selection. By leveraging a cooperative and coordinated framework involving multiple agents, the variables were fine-tuned, leading to improved quality in the extracted features. Consequently, this approach achieved superior feature extraction results, yielding better and more precise features for a given image. Subsequently, CNNs were employed for image classification by training a deep neural network on a labeled dataset and optimizing its parameters. Leveraging the learned patterns and features from the training data, the trained model exhibited the ability to classify new images, resulting in enhanced accuracy for MRI classification

Torsional behavior of strengthened reinforced concrete beams on two sides by CFRP using EBR Techniques

Ali. Z. Abbas — 2023-11-24

Retrofitting existing buildings or increasing the strength of new buildings has become a major issue in the world today to meet the new requirements. Many studies have sought new techniques to renovate old concrete structures. This paper presents four large scale RC box beams with hollow cross-sections measuring 400 mm x 400 mm and 3,000 mm in length that were tested under torsion; two beams were used as a control specimen whereas, the remaining two beams were partially strengthened for torsion on two sides by EBR-CFRP strips. The effeteness of the number of the layer have been discussed. The relationships between torsional moment and twisted angle, and the failure modes of the beam specimens are investigated. The ultimate torque capacity of beam specimens strengthened by EBR has resulted in improvements in the torque capacity of beams. Specifically, the enhancements were 15% when using one layer of CFRP while when using two layers of CFRP was 29%.

Reading, Its Development and Models

Askarova G.X — 2023-11-28

The article presents that reading fluency is the ability to read with sufficient ease and accuracy that one can focus attention on the meaning and message of the text. Reading fluency is most commonly assessed by listening to learners as they read aloud. When readers lack fluency, their oral reading sounds hesitant, lacking the accuracy, rhythm and flow that indicate confident understanding of the text