OAK jurnallaridan yig‘ilgan 104809 ta ilmiy maqola: sarlavha, mualliflar, annotatsiya, kalit so‘zlar, DOI va tayyor iqtibos formatlari.
Ушбу мақолада мамлакатимиз нефть-газ, кимё саноати корхоналаридаги фойда тақсимоти, дивиденд сиёсати ва унинг тўловлари таҳлил қилинган.
Мақолада “Ўзёғмойсаноат” уюшмаси таркибига кирувчи акциядорлик жамиятлари иқтисодий фаолияти таҳлил қилинган, бошқарув ходимларини тайёрлаш, қайта тайёрлаш ва малакасини ошириш ҳамда корпоратив бошқарув…
This article aimed at highlighting the prospects and strategies for the development of the role of imports in the construction materials market of Uzbekistan, covers such problematic issues as Uzbekistan's competence in…
Ушбу мақолада туризм дестинацияларини ривожлантиришда инфратузилмаси ташкил этувчиларини бошқаришни мувофиқлаштиришнинг назарий жиҳатлари ўрганилган ва дестинациялардаги инфратузилма ҳолати амалий тадқиқ…
В статье рассматривается сущность «зеленой экономики», технологии, механизмы и инструменты управления развитием зеленой экономики, как социальные требования к руководителям предприятий. Рассмотрено формирование…
Мақолада Жиззах вилоятининг ўтлоқи бўз тупроқлари шароитида оралиқ экин сифатида эспарцет ва клевер экинлари, кузги буғдойдан сўнг такрорий экин соя экилган ва экилмаган фонда алоҳида ҳамда аралаш ҳолда парваришлашнинг…
Ushbu maqolada qattiq bug‘doyning yangi Mingchinor navini lalmikor sharoitida yetishtirishda hosildorlikni ekish muddati va meyorlariga bog‘liqligini о‘rganildi hamda qulay ekish muddati va meyorlarini tavsiya…
Мақолада кузги юмшоқ буғдой ҳосилидан бўшаган майдонга такрорий экин сифатида тариқ ва мош экинларини турли экиш усуллари ҳамда меъёрларининг уруғларнинг дала унувчанлиги ҳамда униб чиқиш давомийлигига боғлиқлиги…
Ушбу мақолада Қашқадарё вилоятининг суғориладиган майдонлари, оч-тусли бўз тупроқ иқлим шароитларида ширин маккажўхорининг «Мазза» ва «Замон» навларини асосий экин сифатида экилганда экиш схемаси ва мақбул ўғитлаш…
Қашқадарё вилояти суғориладиган оч тусли тупроқлари шароитида плёнкали иссиқхонада кузги ва баҳорги муддатларда помидор ва сабзавот экинлари кўчатларини экиш, парваришлаш ва етиштириш агротехникасининг таъсири ўрганилди.
В статье приведены результаты исследований структраобразования в гетерокомпозитных системах при механо-химической модификации. Изучен механизм движения частиц при механовоздействии и активвация частиц модифицированных…
In this article presented the results of a study on improving the mechanical properties of composite materials based on polyethylene. A composition materials filled with a thermoplastic polymer - polyethylene modified…
Мақолада боғланган грунтли каналлардаги ювилиш жараёнини физик моделлаш усули келтирилган. Боғланган грунтли каналлардаги ўртача ювмаслик ва туб ости ювмаслик тезликларининг ўртасидаги кинематик муносабатлар берилган…
Мақолада плуг лемехларига термик ишлов берилгандан сўнг уларнинг қатттиқлиги ва микроструктурасини ўрганиш бўйича натижалар келтирилган. Лаборатория тадқиқотлари Андижон машинасозлик институтида HBRVS-187,5 универсал…
Мақолада Қашқадарё вилоятидаги Лангар сел-сув омборида олиб борилган дала-тадқиқотлари натижалари келтирилган. Лангар сел-сув омбори ўзанида қуриладиган тиндиргичлар ўлчамларини аниқлаш ва асослаш учун боғланган сел…
В данной статье отражены показатели изучения процессов переработки местных базальтовых минералов, на основании, которых перерабатываются базальты. Рассматриваются результаты физического и химического…
Мақолада насос станцияларнинг эксплуатацион самарадорлигига ички босим қувурларининг конфигурацияси, ўлчамлари ва уларда ўрнатилган жиҳозларнинг қувур гидравлик қаршилик коэффициентига таъсири таҳлили, улар асосида…
Hozirgi vaqtda yashash uylarining issiqlik ta’minoti tizimlarida qayta tiklanuvchi quyosh energiyasidan foydalanish dolzarb masalalardan biri hisoblanadi. Ushbu maqolada yashash uylarining issiqlik ta’minotida quyosh…
На сегодняшний день солнечная сушка плодов является востребованной, так как считается одной из самых экономически выгодных решений проблемы обеспечения продовольствием населения. Но устройства, применяемые при таком…
В статье рассмотрено значение гидродинамических условий при накоплении и сохранении залежей углеводородов (УВ) путем изучения гидродинамики пластовых вод и движения флюидов юго-восточной и части Бухаро-Хивинского и…
Бурғилаш ускуналарининг эксплуатацияси энергия самарадорлигини ошириш, фойдали қазилма конларини қидириш ва разведка қилишнинг муддатларини камайтириш ҳамда геологик қидирув ишларининг ёқилғи энергия сарфларини…
В статье изучены современное состояние и основные физико-химические свойства утяжеляющих материалов и буровых растворов на их основе для бурения нефтегазовых скважин. Разработаны новые составы утяжеленных буровых…
Мақолада республиканинг жанубий минтақаси оч тусли бўз тупроқлари шароитида ерёнғоқнинг униб чиқиши, чин барг чиқариши ва шохланиш даврларига экиш муддатлари ўз таъсирини кўрсатсада, экиш схемаси ва фосфорли ҳамда…
Nickel oxide nanopowder was synthesized by the sol-gel method using nickel nitrate as the initial reagent. During the synthesis, the intensity of mixing of the initial mixture and the calcination temperature were…
The article considers the manifestation of the band structure of the electronic spectrum of non-metallic solids in a number of processes of the spin chemistry of radicals. It is shown that for a certain mutual…
The macroporous silicon substrate was obtained through electrochemical etching and exhibited a uniform distribution of pores. For the deposition of the TiO2 film onto substrate, the thermal atomic layer deposition (ALD)…
Regularities of the effect of elastic deformation on the energies of formation and activation of ions motion in superionic LaF3 crystals have been studied. It is shown that in the dielectric phase, when the distance…
The role of the sensor signal amplifier in the electronic thermometer electrical circuit is considered. The operation of the amplifier discussed in the article was modeled using the MULTISIM program, and its…
Despite extensive research on perylene nanocrystal synthesis, the prenucleation processes are still poorly understood. Using reactive molecular dynamics simulations, we investigated these processes with flat perylene…
The article presents a calculation of the angular distribution of the degree of polarization of diffusely reflected and transmitted natural solar radiation from atmospheric layers under multiple Rayleigh scattering. The…
The thermal desorption spectra of morphine, heroin, codeine, and papaverine have beenstudied at different temperatures TE of the surface ionization emitter. It was found that the dependence of the temperature of the…
In this paper, we study the question whether it is possible to explain the origin of all observed types of bulges of spiral galaxies on the basis of the mechanism of gravitational instabilities of vertical disturbance…
In this work, we studied the change in the elemental and chemical composition of the Cu surface during cleaning by heating in combination with ion bombardment. For the elemental analysis of copper and the chemical…
As we know if por-Si/с-Si is deposited on a -type crystalline silicon substrate, the deep levels and surface states are formed in por-Si. Due to the formation of these levels and states in por-Si, the shift of the Fermi…
In the present work, the absorption spectra of all defects characteristic of hydrogenated amorphous silicon are theoretically studied. It has been found that the main role in determining the defect absorption spectrum…
Daytime heat losses and coolant temperatures at the outlet of flat-plate solar collectors (SC) are studied taking into account the variability of the density of incident solar radiation on the SC. The studies were…
We studied solar pumped fiber lasers without primary concentrator. A model of solar sidepumped Nd3+ doped silica fiber lasers was developed using photon tracing method. Theabsorbed power distribution, possible losses…
The electrical conductivity of C-4 grade graphite irradiated by fast neutrons with a fluence of 2.22×1019 n/cm2in the temperature range of 298–448 K has been studied. A nonlinear dependence of the electrical…
Sb2Se3 films were obtained by chemical molecular beam deposition (CMBE) at a substrate temperature of 400℃. The X-ray patterns show diffraction peaks belonging to the orthorhombic phase of Sb2Se3. The obtained X-ray…
It has been determined that ZnO1-хSх nanoislands with an average height of about 30−50 nm and densities of 2.9×1011 cm−2 are formed on the surface of ZnO1-хSх films during the deposition of metal oxide layers. It is…
By implantation of Al+and In+ions and subsequent annealing on the GaP surface, thin singlecrystal GaAlP and GaInP films were obtained. For the first time using the methods of Auger electron spectroscopy, ultraviolet…
The physico-chemical and mechanical properties of ceramics and composites, which in many respects are superior to modern alloys, are not widely used due to processing difficulties. They can be treated qualitatively by…
Model experiments on the scattering of nitrogen atoms by the surface of a carbon nanotube were carried out using molecular dynamics methods (ReaxFF, LAMMPS). In this work, a twolayer carbon nanotubes with chirality…
When obtaining carbon nanomaterials, the metal nanoparticles are mainly used, far less their oxides. Nickel oxide nanoparticles have been examined by X-ray diffraction analysis and found to have a standard cubic crystal…
he behaviors of self-aggregation of C60 molecules in solution of C60/toluene/hexane were studied by the methods of refractometry, ultraviolet-visible spectroscopy, dynamic light scattering (DLS) and electron microscopy…
Multi-rod scheme is being studied as one of the promising pathways in advancing solar lasers toward higher efficiency. We developed an end-to-end simulation model with several rods for end-side pumped solar laser. The…
The growing electricity demand is associated with an increase in the use of renewable energy sources, which is difficult to use directly due to the dependence of its parameters on natural phenomena. Therefore, there is…
Using the methods of powder X-ray diffraction, secondary ion mass-spectroscopy, Auger electron spectroscopy, photoelectron spectroscopy, and spectroscopy of elastically reflected electrons, the composition, density of…
In this work, the ohmic contact has been investigated for n-4H-SiC. It is shown that a Schottky barrier is formed in the samples during the vacuum heat treatment at 700°C, and at 950°C nickel atoms begin to actively…
In the paper, the influence of hot electrons, holes and a crystal lattice on currents of p-n junction based on heterostructures have been investigated. The power of the solar photocell, the changes in the fill factor…