Химические науки список научных статей

Грек ёнғоғи (Juglans regia L.) Ўрта Осиё, Кавказ ва Кавказ орти мамлакатларида кенг тарқалган. Грек ёнғоғи – баланд бўйли кўп йиллик дарахт бўлиб, ёнғоқдошлар оиласига мансуб. Меваси – сохта данаклардир. Икки чаноқли данак ичида тўрт қисмлик мағзи жойлашган. Мағзи параш пўст билан қопланган. Август ...

The paper presents an analysis of the results of synthesis of silver nanoparticles by sol-gel method using different reducing agents. The main parameters of the synthesis of nanoparticles, such as temperature, concentration and ratio of solutions of silver nitrate and reducing agent, and their...

Изучены адсорбционные свойства природных сорбентов Костанайской области. Исследуемые сорбенты могут быть использованы для адсорбционной очистки воды ионов железа.

Мақалада қоршаған орта экологиясының мәселелері қарастырылады. Қоршаған ортаның ластануының негізгі себептері, ластаушы көздері мен факторлары және оның салдары тілге тиек етіледі. Химиялық экологиялық проблемалар адамзат іс – әрекетінің ұзақ уақыт бойы біртіндеп жинақталып пайда болған тіршіліктің ...

Для решения многих задач синтетической биологии, в том числе для синтеза более широкого репертуара последовательностей, а также для дальнейшей автоматизации и миниатюризации таких реакций необходимо иметь стандартизированные методы сборки фрагментов ДНК. В представленной работе предложены условия...

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Mumyoni atom-absorbsion spektrofotometriya va xromato-mass-spektrometriya (GC-MS) yordamida tahlil qilindi. Bir qator aktiv metallar, biologik va kimyoviy faol moddalar mavjudligi tekshirildi vatibbiyotda turli kasalliklarda qo’llanilishini o’zini oqlaganligini aniqlandi.

Acute kidney injury (AKI) is acommon occurrence in the neonatal intensive care unit (NICU). In recent years, our knowledge of the incidence and impact of neonatal AKI on outcomes has expanded exponentially. However, treating AKI in newborns is often challenging due to the functional immaturity of...

Неалкогольная жировая болезнь печени (НАЖБП) стала значительной проблемой общественного здравоохранения по всему miRу, представляя собой спектр заболеваний печени от простого стеатоза до неалкогольного стеатогепатита (НСГ), фиброза, цирроза и гепатоцеллюлярной карциномы (ГК). Глобальная...

Hozirda respublikamizda yetishtiriladigan paxta xom ashyosini 80-85 % yuqori navli paxta tashkil qilmoqda. Bu esa o‘z navbatida yuqori navli paxtani tabiiy sifat ko‘rsatkichlarini saqlash, qurutish va tozalashni maxsus zamonaviy kam energiya talab qiladigan texnikalardan foydalanish dolzarb...

Существующие в настоящее время технологические методы изготовления и полупроводниковые материалы, используемые при разработке эффективных фотоэлементов с максимальным коэффициентом полезного действия и стабильными параметрами, практически достигли своего предела. Для дальнейшего повышения основных...

The article discusses the frequency of occurrence and clinical manifestations of stomatitis in patients after prosthetics with protacryl polymers. 40 patients aged from 56 to 75 years were examined. Among the surveyed persons there were 20 women and 20 men. All patients needed partial removable...

The article is about the effect of ginning on the quality of the product after the technological process of cotton ginning.

Представлены результаты создания и исследования органических светоизлучающих светодиодов на основе координационных соединений ионами европия (Eu3+) c β-дикетонами и уксусной и масляной кислотами. Актуальность работы обусловлена активным поиском новых материалов для создания оптоэлектронных...

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Nano-sized indium incorporated silver sulphide (Ag–In–S) nanocomposites were synthesized by simple wet chemical method as an electron transport layer in zinc oxide (ZnO) for high efficient photovoltaic (PV) cell. The inclusion of high conductivity indium ions in Ag2S will improve the facile...

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This paper reports a modified version of hot injection method for the synthesis of CdSe quantum dots and CdSe–ZnSe nano–tetrapod structures. In the present method, certain synthesis parameters such as injection temperature, growth temperature and precursor ratio were tuned to influence the growth...

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Ultrahigh porosity activated carbon (AC) was made from H3PO4-impregnated waste cotton precursor by carbonization in Ar and physical activation in variable CO2 flow rate with ultrahigh heating rate. The presence of CO2 in the activation plays an important role in the formation of the porous...

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In present work the porous nanocoating of manganese oxide were obtained via successive ionic layer deposition from aqueous solutions of potassium permanganate and DMSO. The morphology, phase and chemical composition of the synthesized nanocoatings were characterized by XRD, SEM, EDX and Raman...

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Thin films of La2NiMnO6 (LNMO) double perovskite oxide were first used as buffer layers in planar perovskite solar cells (PSCs) with the architecture of glass/FTO/LNMO/CH3NH3PbI3/Spiro-MeOTAD/Au. All PSCs were fabricated under ambient conditions and their photovoltaic parameters were measured under ...

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GaInAsP and GaInAsSbBi solid solutions were grown on GaP (111) substrates by pulsed laser deposition using a laser fluence of 2.3 J/cm². Energy Dispersive X-ray microanalysis, atomic force microscopy, and Raman spectroscopy were used for analysis of the elemental composition and study of the...

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Structural transformations of nanocrystals in the LaPO4–YPO4–(H2O) oxide system were investigated under hydrothermal conditions at 230 ˚C, depending on isothermal holding times (2 hours, 7 days and 28 days). It was shown that before hydrothermal processing, phases crystallize in the system with...

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