OAK jurnallaridan yig‘ilgan 140147 ta ilmiy maqola: sarlavha, mualliflar, annotatsiya, kalit so‘zlar, DOI va tayyor iqtibos formatlari.
В статье рассматривается математическое моделирование давления на плунжер при эксплуатации нефтяных скважин с глубинными насосами. Численными экспериментами изучено влияние вязкоупругих свойств, нефти и плотности нефти…
Рассматривается задача аналитического продолжения решения системы уравнений термоупругости в пространственной области по его значениям и значениям его напряжений на части границы этой области, т.е. задача Коши. Задача…
In the algoflora of the Akdarya reservoir, 83 species have been identified that belong to 4 divisions (Cyanoprocariota, Bacillariophyta, Euglenophyta, Chlorophyta). Algoflora is very abundant in the autumn period of the…
Ushbu maqolada Farg‘ona mintaqasida aholi o‘limi dinamikasi, o‘lim sabablari va uning hududiy tafovutlari hususida fikr yuritilgan.
Ushbu maqolada kompyuter orqali tanib olish algoritmlari rentgenografiya tasvirlari asosida qurilgan, rentgenologlarga diagnostika jarayonini tezlashtirishga yordam beradigan qarorlarni qo'llab-quvvatlash mexanizmi…
Maqolada Nurota tog’larida yashovchi mahalliy tojiklarning katta qismini tashkil qiladigan Forish tojiklarining etnogenezi, hududiy joylashuvi va etnogeografik xususiyatlari aniq misollar yordamida tadqiq qilingan
Agar biror ? hodisa ustida o‘tkazilayotgan tajribalar soni ? yetarlicha katta bo‘lsa u holda shu hodisaning ? marta ro‘y berish ehtimoli ??(?) taqriban Laplas funksiyasi yordamida hisoblanadi. Ushbu ishda ehtimollik va…
В статье изучены свойства сечения параболоида вращения с плоскостью. Параболоид вращения рассмотрен как сфера изотропного пространства . Доказано, что площадь сечения является положительно определенной аддитивной функцие
В данной работе в экспериментах по Фурье ИК-спектрометрии изучен режим набухания полимерной мембраны Нафиона в воде в кювете, характерный размер которого - порядка толщины самой мембраны. Набухание первоначально…
Мaqolada tog’oldi tekisliklarida sug’orma dehqonchilik rivojlangandan keyin quduq suvlari sho’rligi oshib ko’p joylarda ichimlik uchun yaroqsiz holatga kelganligi aniq ma’lumotlar bilan ko’rsatilgan. Quduq suvlaridan…
This work is devoted to modeling the effect of the two-time linear heat dissipation equation on the biological population with ambient density. In the process of work, an autonomous solution was built to solve the…
tadqiqot ishida Qashqadaryo havzasidagi suv resurslarini bashorat qilish daryolari gidrologik rejimining to‘yinish turiga bog‘liqlik masalari ko‘rib chiqilgan. Xududning kelgusida xalq xo‘jaligi faoliyatida samarali…
Vermikulit asosida olingan ionitni aminlash orqali tarkibida azot va oltingugurt tutgan alyuminosilikatlarning fizik-kimyoviy xossalari o‘rganildi. Buning uchun bir hil sharoitda, bir xil miqdorda, bir xil vaqtda va…
Разработаны термокаталитические методики и на их основе созданы анализаторы для мониторинга паров этанола в выдыхаемом воздухе. Созданные анализаторы позволяют селективно контролировать содержание этилового спирта в…
Изучено растворимость системы NaClO3-C10H12CaN2Na2O8-H2O от температуры полного замерзания в интервале от -29,2 до 50°С. Построена политермическая диаграмма растворимости на которой разграничены поля кристаллизации…
Maqolada O‘zbekiston Resupblikasidagi ajralish jarayoni va uning dinamikasi hamda uning geografik xususiyatlari yoritilgan. Shuningdek, ajralish jarayoniga ta’sir etuvchi omillar ularning turlari batafsil ko‘rsatib…
The endophytic fungus Schizophyllum commune XJA1 isolated root of medicinal plant Vernonia anthelmintica herb. The volatile chemical composition of dichloromethane and petroleum ether extracts of endophytic fungus S…
Синтезированы 4-(колхамино-N-бутин-2-ил)овые эфиры α-фенил-β- цианакриловой кислот и 4-(аминоколхамино-N-бутин-2-ил)овые эфиры α-фенил-β-цианакриловой кислот. Строения синтезированных соединений подтверждены данными ИК…
Рассматривается вопрос статико-геометрического моделирования дискретного каркаса двухпоясных решетчатых структур. Приведена статическая модель равновесия системы.
Ushbu maqolada glitsirrizin kislotasi va uning hosilalari bilan 8- oksixinolinning bir necha xil ya’ni 1:1; 2:1; 4:1 molyar nisbatlarda olingan yangi supramolekulyar birikmalarini olish usullari va olingan…
The geometric structure of the surface of silicon nanotube determines its unique properties. The new dual nature of the surface structure of a silicon nanotube depending on the tube type was revealed by ab-initio…
Ushbu maqolada biz o'lchovlar Fur’e almashtirishining ma'lum daraja bilan yig’ilishi muammosini ko'rib chiqamiz. Uch o'lchovli Evklid fazosida, faza funksiyasi Arnol’dning E6 tipidagi maxsusligiga ega bo’ladigan, sirtda…
Ishda ammiakli selitra suyuqlanmasiga 175oС harorat va 100 og‘irliq qism selitraga nisbatan 3 dan 35 gacha og‘irlik ulushda Shо‘rsu, Dehqonobod, Navbahor, Qarnob va Ketmonchi konlari dolomit unini qо‘shishdan keyin…
Ushbu maqolada mahalliy xom-ashyolar asosida olingan tarkibida amin saqlovchi (PVX-A-N-1) anionitning ayrim fizik xossalari o‘rganildi. Anionitning SAS qiymatiga madifikatsiyalanish jarayonidagi haroratning ta’siri…
В настоящей работе предлагается алгоритм построения семейства разных краевых задач Штурма – Лиувилля с одинаковым спектром
In this article, the Lerner index was used to assess the monopoly power of Uzbek banks. The Lerner index was estimated by calculating marginal costs based on the translog function of total costs. Banks operating in…
A technological scheme for producing a biologically active polymer – chitosan, obtained from pupae, silkworms, and copper (II) has been developed. Optimal parameters of obtaining of 9–12% of coppercontained polymer…
The main factor in growing high-quality crops is the rational use of mineral fertilizers, stimulants, and defoliants. It is worth noting that an agrotechnical event as defoliation plays an important role for the…
The article is devoted to the synthesis of ethylene glycol and dimethyl terephthalate based on local raw materials used for the production of polyethylene terephthalate, the dry forming of fibers from existing…
The article discusses the results and methods of selection aimed at improving the biological characteristics in the rocks-components of high-yielding silkworm hybrids. High biological indicators of the breed components…
Based on the study of scientific literature, the article reveals the ambiguity of the interpretation of the concept “cost of capital” and shows the shortcomings of existing methods for determining the amount of cost of…
This article presents the results of research on the development of new patterns of crepe fabrics for dress from natural silk and technology of their production. Today, the deep processing of cocoon raw materials…
The interaction of lint with grates in the cleaning module, as well as the impact interaction of the pulp with the grate, was studied with the effective extraction of impurities in time, taking into account changes in…
The problem of combating money laundering in our country is an important component of ensuring economic security. The article, along with theoretical views regarding the concept of money laundering methods through the…
Salt stress enhances the formation of reactive oxygen species in plant tissues associated with damage to the structure of cell macromolecules, leading to disruption of cellular metabolism. The use of drugs of natural…
The aim of the following research work is to select mulberry silkworm breeds and hybrids that are resistant to the high temperature of the summer season and low relative humidity, as well as to study the influence of…
The study of the features of assessing the effectiveness of leasing services as a way of financing investment projects in the financial market, in contrast to other alternative methods, is considered especially…
Fighting against the nosematosis of the silkworm is very difficult due to the fact that it is inherited. The development of effective therapeutic and preventive measures is an important problem of sericulture. The…
The article explores the possibility of using the thermohygrometric coefficient of air aridity to assess bioclimatic conditions, including thermal comfort. According to the results, the thermohygrometric coefficient has…
The analysis of the hydrochemical regime of the rivers feeding the irrigated territories of agricultural land in the river basin is essential to develop scientifically based recommendations on the rational use of water…
Clinical evaluation and sonography of the patient belong to the first stage of the examination of patients with an enlargement in the parotid region. The use of computed tomography and magnetic resonance imaging can…
This article is devoted to the features of speech and voice of rhinolalia children, the shortcomings in the pronunciation of speech and their manifestations. The article also lists some exercises for developing soft…
Present study was to optimize the treatment of patients with subglottic laryngeal stenosis. Materials and methods: We have examined a total of 8 patients presenting with subglottic laryngeal stenosis. The etiological…
Work mth a review of the literature. The purpose of this work is to define modem ideas about active and interactive methods of training dentists in the modernization of continuous postgraduate education. The assessment…
Improper treatment of a fracture of the lower jaw can lead to the development of a number of complications, such as a defect in the jaw bone, incomplete fixation of fragments of the fracture, inflammatory diseases of…
The review of the literature presents the authors articles describing the precesses of eruption and mineralization of permanent teeth in children in different regions. Proposals for creatmg common standards for specific…
The authors analyzed medical publications related to changes in the biopotentials of the muscles of the maxillofacial region, and came to a common opinion that studying the condition of the muscles of the dentofacial…
This article provides a review on the analysis of the current state of HIX' and AIDS in dental practice. The main emphasis placed on the analysis of the features of the manifestation of dental diseases in patients with…
Joint observation of today’s widespread periodontitis together with diseases of internal organs prevents the achievement of changes in periodontal tissues corresponding to the pathogenesis of various systemic diseases…
A review of the literature focuses on manifestations of galvanosis in the oral cavity. The scope of the analysis of sources has a large tune range: from 1997 to 2019. During this time there was a lot of knowledge about…