Central Asian Journal of Theoretical and Applied Science
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Designing of Sr-doped ZnO Nanoparticles onto FTO Glass for Photovoltaic Application
No full textZnO nanoparticles are regularly studied for optoelectronic devices. By doping, the structural, optical, electrical and magnetic characteristics of the materials are changed. Some nanoparticles, e.g. Al, Ga, Co doped with ZnO have been extensively used. Even so, few Sr-doped ZnO nanoparticles have been reported so far. In the first part of this work, Sr-doped Zinc Oxides nanoparticles have been synthesized by sol gel process. In the next part of this project, the dye-sensitized solar cells (DSSCs) have been fabricated. They have been analyzed with X-ray diffraction (XRD), Scanning electron microscopy (SEM), UV-visible Spectrophotometry respectively, for their structural and optical properties. The functional groups and chemical bonding of ZnO have been substituted by Sr ions by Fourier transform infrared. The particles of varying sizes and shapes were seen in the micrographs. The measurements of photoluminescence indicate a change of 380 to 384 nm for doped and co-doped samples at close-band rims of UV emissions. To decrease the inherent defects in the ZnO structure, the Zn replaced by Sr ions. This has also been observed that there is a saturation benefit of the Sr-doping concentration in ZnO nanoparticles for our primed solar system regardless of the marginally soluble nature of strontium in ethanol. Undoped and Sr2+ doped DSSCs have been used for generating ZnO-based photographic anodes. The charge characteristics of prepared DSSCs have been used in electrochemical impedance spectroscopic experiments
Translating Names and Objects from Longfellow’s “Song of Hiawatha”
No full textRealia are words and expressions for culture-specific items. As realia carry a very local overtone, they often represent a challenge for translators. They cannot be confused with terminology, as it is mainly used in scientific literature to designate things that pertain to the scientific sphere, and usually appears in other kinds of texts to serve a very specific stylistic purpose. Realia, instead, are born in popular culture, and are increasingly found in very diverse kinds of texts. One of its main purposes is to convey an exotic touch (fiction)
Перспективы Использования Магнезиального Сырья И Технологии Их Термохимической Обработки Доломита Ваушского Месторожденияа
No full textСтатья посвящена анализу имеющихся свединий по формированию магнийсодежащий пород, в частности доломита, способам их переработки. Изложены результаты проведенных экспериментов по исследованию химико-минералогического состава и основных его свойств, комплексному термохимическому разложению доломита Ваушского месторождения. Строгое соблюдение режима процесса обжига, правильный подбор гранулометрического состава сырья являются важными условиями получения оксида магния. Отмечено, что при обжиге процесс разложения MgCO3, содержащегося в мелких кусках доломита, доходит до конца, при этом наблюдается, что крупные куски разлагаются не полностью
Science and Education in Social Development
No full textIn this article highlighted about from a scientific and philosophical point of view the role of the social sciences in the formation of innovative ideas, as well as the importance of the harmony of spirituality, science and education in social development
Цинк И Заживление Ран: Обзор Физиологии И Клинического Применения
No full text: В настоящее время проводятся ряд исследований для изучения функций цинка в организме человека, однако имеются серьезные пробелы в отношении функции цинка в заживлении ран. Этот обзор направлен на то, чтобы предоставить клиницисту достаточное понимание биохимии цинка и современный взгляд на роль цинка в заживлении ран. Цинк является незаменимым элементом, который имеет решающее значение для поддержания нормальной физиологии, а его дефицит имеет множество проявлений, начиная от замедленного заживления ран и заканчивая иммунной дисфункцией и нарушением многих сенсорных систем. Хотя был достигнут консенсус в отношении отрицательного действия дефицита цинка в заживлении ран в литературе существуют значительные разногласия по поводу оптимальных методов и реальных преимуществ добавок цинка
СКОПЛЕНИЯ АКЦЕПТОРНЫХ ЦЕНТРОВ В n-GaAs И ВЛИЯНИЕ ГАММА-ОБЛУЧЕНИЯ НА ИХ РАЗМЕРЫ
No full textИсследован и обнаружен процесс роста скоплений акцепторных центров n-GaAs при гамма-облучении. Показано, что концентрация водородоподобных доноров при облучении не изменяется. Найдено распределение плотности донорных состояний водороподобных примесей по энергиям. Установлено, что скорость введения акцерторных центров соответствует пороговой энергии образования пары Френкеля 20эВ
Cognitive Radio Networks with Flexible Channel Cooperation in Resource Allocation
No full textThe Wireless correspondence networks are a drawn-out that accompanies all kinds of strategies and kinds of associating and human movement between at least two gadgets utilizing a remote transmission through remote correspondence advances and gadgets. Correspondence issues encapsulate impromptu and foundation networks as correspondence properties, conventions, information configurations, and substantial innovations. The essential client (PU) will send the data through the Secondary User (SU). Then, at that point, through how much SU s the information is moved to the base station. The channel is commonly relegated given the two algorithmic principles, the ideal disseminated dealing calculation and concentrated heuristic calculation. Then, at that point, among the current framework, expansion assault is a serious disadvantage. The expansion assault is overwhelmed by executing the Future Peak Detection calculation. This verifies that the Pu will choose to communicate information through that SU. so the expansion tackle issue could likewise survive. Furthermore, the information is crossed to the base station with the entire security
Inventory Management System in Mobile-Based Point of Sale
No full textMobile-based point of sale (mPOS) is a developing data framework, and many individuals are keen on utilizing it, particularly in business regions. These days, the most involved process in the eatery is the request cycle, reservation process, and conveying clients’ organization. Working out instalment charges that are as yet noted utilizing paper makes the interaction less effective than it ought to have been. A versatile based retail location application will be created. Printing receipts is additionally utilized. Portable based retail location (mPOS) is an easy to use graphical connection point that proposes a Sale and Inventory Management System to the store to supplant old manual ways. The framework’s goal is to give capacities in overseeing products in the store all the more productively. To accomplish the goals determined, the extent of the venture will zero in on the perspectives, for example, information base, report creating, quality control (QA) and retail location of the store
The Use of Cyanides in Gold Refineries and the Generation of Wastewater
No full textThe relevance of this article is due to the waste of cyanide in wastewater, its high cost and the need to dispose of it before disposal. Sodium cyanide is currently common for precious metals in ores and concentrates and is the only effective solvent in practice. The use of this reagent in the processing of ores containing gold and silver is explained by its ability to form soluble cyanide complexes with gold and silver. At the same time, non-precious metals form complexes with zinc, copper and iron. Thiocyanates are formed when cyanide solutions react with sulfide minerals. All this leads to an increase in cyanide consumption in the selective smelting of precious metals and the formation of wastewater containing highly toxic compounds
Новые Находки Органических Остатков В Пермских Отложениях Букантау (Центральные Кызылкумы)
No full textРассматривается новое местонахождение позднепермских видов органических остатков Сystothalamia smirnovi Kim sp. nov., C. Kimi Smirn sp. nov., Amblysiphonella bucanti Smirn. sp. nov., Lophocarinophillum pulchrum Kropatcheva, L. chandalasicum Iljina, Ufimia columbinum (Fam) впервые обнаруженных на Западе Узбекистана дается их описание, характеризуется палеоэкологическая обстановка формирования отдельных биогермных массивов в горах Тахтатау. Подчеркивается важность изучения этой группы организмов для палеоэкологических исследований