OAK jurnallaridan yig‘ilgan 140147 ta ilmiy maqola: sarlavha, mualliflar, annotatsiya, kalit so‘zlar, DOI va tayyor iqtibos formatlari.
Maqolada maktabgacha yoshdagi bolalarda biriktiruvchi to‘qima displaziyasi fonida shifoxonadan tashqari pnevmoniyaning kechish xususiyatlari o‘rganildi. Tadqiqotga 48 nafar bola kiritilib, ular BTD belgilari mavjud va…
Проведена комплексная оценка эффективности сульфоэтилированной целлюлозы (SCel) в качестве ингибитора гидротации и стабилизатора в модельных буровых растворах на основе бентонита в условиях, приближенных к реальным…
Maqolada metil va dimetil amin bilan modifikatsiyalangan Angren ko‘miri (FKMA va FKDMA) adsorbentlarida Cu2+ va Pb2+ ionlari adsorbsiyasining kinetik qonuniyatlari tadqiq etilgan. Tajriba natijalari psevdo-birinchi…
Today, agriculture is determined by the growing need for environmentally safe and effective fertilizers and the need to reduce the negative impact on the environment through the processing of organic waste. The results…
Ushbu tadqiqotda 17 ta arpa nav va tizmalarning qurg‘oqchilik hamda suvli sharoitdagi morfologik ko‘rsatkichlari o‘rganildi. Tadqiqotning asosiy maqsadi arpa genotiplarida barg sathi va oxirgi bo‘g‘in uzunligining…
3,4,5-trimetoksibenzoy kislotaning izobutil spirti bilan eterifikatsiya reaksiyasi o‘rganildi va mos izobutil efiri olindi. Eterifikatsiya reaksiyaning borishiga harorat, reaksiya davomiyligi, katalizator tabiati…
Mazkur maqolada Farg‘ona milliy tabiat bog‘i hududida tuproq resurslarining hozirgi ekologik holati va ulardan barqaror foydalanish istiqbollari tahlil qilinadi. Ochiq ma’lumotlar, ilmiy adabiyotlar hamda…
Ushbu tadqiqot O‘zbekistonda elektrostatik filtrlarni (ESP) mahalliylashtirishning iqtisodiy asoslanganligini va bozor imkoniyatlarini tahlil qiladi. Chetdan import qilinadigan ESP narxlari va mahalliy ishlab chiqarish…
This study examines the clinical and physiological parameters of Hissar sheep kept under household conditions in the Uzbekkenti mahalla of the Samarkand district. In the initial phase of the research, the general…
Mazkur maqolada fosfatli mineral o‘g‘itlar ishlab chiqarish jarayonida hosil bo‘ladigan asosiy texnogen chiqindilar, xususan fosfogips, kislotali oqova suvlar, ftorli gazlar, fosfat changlari va texnologik shlamlarni…
Ushbu maqolada gidroenergetika sohasida keng qo‘llanilayotgan ekologik xavfsiz va past naporli Arximed vintli turbinalari (screw turbine) asosidagi mikro gidroelektr stansiyalarining (mikro-GES) ishlash prinsipi va…
Maqolada Toshkent viloyatining Dukentsoy suv havzasi haqida umumiy ma’lumot va ekologik holatining gidrobiologik ko’rsatkichlar bo’yicha ma’lumotlar berilgan.
Maqolada Toshkent viloyatining Dukentsoy suv havzasi haqida umumiy ma’lumot va ekologik holatining gidrobiologik ko’rsatkichlar bo’yicha ma’lumotlar berilgan. Dukentsoy suv havzasining ekologik-geografik holatini…
Ushbu maqolada Tebinbuloq koni vermikulitini termik va mikroto‘lqinli kengaytirish asoslari keltirilgan. Kengaytirilgan vermikulit qatlmalri orasidan fizik va kimyoviy suvning katta tezlikda chiqib ketishi uning…
Предпосылки проблемы.На сегодняшний день поверхностно-активные вещества широко применяются в фармацевтике, косметике, пищевой промышленности, флотации и различных индустриальных процессах. Их поверхностная активность…
Ushbu maqolada kvant kimyosining muhim yo‘nalishlaridan biri bo‘lgan Molekulyar orbitallar usuli yordamida ikki atomli molekulalar (
This study presents an efficient method for approximating the solutions of a certain class of first-order differential equations with variable coefficients. The approach constructs an auxiliary differential equation…
This paper studies the dynamics of derivatives of various orders of the Falkner–Skan (FS) equation in the presence of a longitudinal pressure gradient. The FS equation is a nonlinear singularly perturbed third-order…
The paper addresses the formulation of plane elasticity problems in terms of stresses and their numerical solution by the Galerkin finite element method. Based on the equilibrium equations, geometric relations, and…
This study presents a mathematical and numerical model for filtration flow, solute transport, adsorption, and membrane fouling in a cylindrical porous filter. The model combines axisymmetric Brinkman–Darcy flow…
This work presents a comprehensive numerical and analytical study of hydrodynamic and thermal processes in closed pipelines of variable diameter, taking into account terrain relief and external thermal influences. The…
Within a non-conservative formulation of the quasi-one-dimensional linearized mass and momentum conservation equations, transient processes are studied in an elementary undulating pipeline section caused by step-like…
This paper presents a three-dimensional numerical study of a novel vertical-axis wind turbine (VAWT) with a unique aerodynamic profile and a passive blade-pitch mechanism. Rectangular blades are mounted on horizontal…
This paper develops a quasi-one-dimensional mathematical model of steady-state heat transfer from a thin rectangular fin installed on a cylindrical pipeline parallel to its generatrix. Unlike classical formulations…
This paper investigates how the propagation velocity of small pressure disturbances in a gas–liquid medium varies with the mass concentration of air. Two cases are considered: a rigid pipeline and a pipeline accounting…
This paper presents an improved quasi-one-dimensional model of unsteady compressible fluid flow in main pipelines for studying water hammer damping. Its novelty lies in a rigorous nonlinear boundary condition based on…
A three-dimensional mathematical model is proposed for the inflow of a turbid (sediment-laden) river flow into a density-stratified reservoir, accounting for phase separation and the breakdown of the layered structure…
This article presents the views of both foreign and local researchers regarding the implementation of sustainable development in the context of the sustainable advancement of the foodservice market. The study examines…
This article analyzes methodological solutions for improving the efficiency and quality of outsourcing services, including the goals and objectives of outsourcing services, the choice of the outsourcing services market…
The article examines and systematizes the experience of a number of leading foreign countries in the innovation and investment development of the agricultural sector. It analyzes the changes in the sources of financing…
In the practice of financial accounting, “biological assets” are recognized as an important object of financial accounting and reporting. Correct organization of accounting of biological assets further improves the…
This article examines issues related to the reforms that have taken place in the banking sector of the Republic of Uzbekistan. An analysis of the indicators of the number of credit institutions, the average annual…
Radiological examinations are one of the most crucial stages in the process of detecting, monitoring, and treating diseases in the healthcare system. This article explores various types of radiological diagnostics…
This article provides a retrospective analysis of the process of organizing native language education. The process of teaching native language has a long history, and it has developed in different periods depending on…
This scientific article presents value added tax, its place in the tax system of our republic and foreign countries, and the stages of its development. It is based on the need to adopt a single value-added tax rate.
this article analyzes the challenges and strategies for taxing and regulating e-commerce, with a focus on Uzbekistan’s context and global practices. It explores key issues such as defining the tax base, determining tax…
This scientific article presents the value added tax, its place in the tax system of our republic and foreign countries, the stages of its development. It is based on the need to adopt a single rate of value added tax.
This article analyzes the advanced experiences of the mentioned countries, examines the distinctive features of households, and highlights their impact on improving population welfare. It also explores the opportunities…
This article analyzes the economic efficiency of ultrasound diagnostics in detecting uterine diseases. A comparison with traditional diagnostic methods (biopsy, MRI, laparoscopy) is conducted, assessing costs, time…
The article presents information on the study of theoretical and methodological foundations for the development of innovative potential and human capital in a region and the development of development tools. It also…
The article analyzes the reasons why adolescent football players encounter frustrating situations, the psychological impact of these situations, as well as effective psychological approaches to their elimination. The…
The article analyzes the importance of small business and private entrepreneurship in the sustainable development of the country’s economy and in meeting the endlessly growing needs of the population. the need for state…
This article proposes the formation of an innovative system for Uzbekistan to take its position as a country that can compete in international markets with telecommunications services and goods using a business…
This article discusses the essence, forms, and positive and negative impacts of international trade on the national economy. International trade creates the basis for expanding economic relations between countries…
This article analyzes the importance of innovative approaches and strategic management principles in small business development. Although previous studies have emphasized the importance of innovative strategies for the…
The article reveals the inextricable link between income growth and economic growth. In particular, it highlights how increases in wages, pensions, and social benefits affect consumer demand. It also discusses…
The implementation of modern X-ray equipment in multidisciplinary hospitals is an integral part of contemporary medical and technological progress. This article analyzes the economic costs associated with the…
This article comprehensively analyzes the role of modern digital technologies in the green economy and their impact on the formation of environmental sustainability. The article covers the integration of artificial…
This article examines the role and significance of innovative approaches in the sustainable development of the green economy in Uzbekistan. The conceptual foundations of the green economy, the balance between…
This article reveals the current state of increasing the efficiency of natural resource use in the sustainable development of the economy of Uzbekistan, scientifically substantiates the importance of innovative…