Materials Literature
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High-voltage power supplies (HVPSs) are widely used to drive vacuum tubes, inherently susceptible to vacuum arc faults. Owing to the considerable cost of vacuum tubes, the HVPS should enjoy a reliable, fast protection mechanism. A common protection mechanism against vacuum arc faults is the shunt crowbar. The crowbar…
Обзор посвящен исследованию методом электронного парамагнитного резонанса (ЭПР) пористых полимерных материалов (матриксов), полученных из алифатических полиэфиров и допированных парамагнитными биологически активными веществами с помощью сверхкритических флюидных технологий. Особое внимание уделяется возможностям ЭПР-с…
В среде СК-CO получены композиции на основе хитозана и замещенных диарилимидазолов (ДАИ), обладающих противоопухолевым действием, с замедленным высвобождением активных веществ. Установлено, что использование воды (0,17 об. %) в качестве сорастворителя в процессе СКФ-импрегнации хитозана диарилимидазолами приводит к ув…
На основе интерполимерного комплекса альгинат-хитозан с использованием сверхкритических флюидов получены материалы аэрогельного типа с развитой мезопористой структурой. Площадь удельной поверхности образцов достигает 243 м/г, средний размер пор составляет 14,8 нм. Показана возможность использования полученных аэрогеле…
The effect of the parameters of isothermal treatment at low temperatures, also called Austempering, on the impact toughness, hardness and microstructure of AISI 4340 steel was investigated. For this purpose, specimens for impact toughness tests were machined according to ASTM E 23-93a. For hardness tests, prismatic ba…
In India, textile mills occupy a vital role in exporting the quality materials and offering above 35 million people employment opportunities. In India Textile mills run over 24x7, siders working inside covering area of 500 meters working in the spinning process runs continuously to monitor and set right the yarn break…
Electromagnetic compression (EMC) is a solid state, high velocity process of deformation of materials. In this process the enhancement of the formability is achieved due to high strain rate forming. In the present study Aluminum alloy AA6061 tube has been compressed using four turn axisymmetric coil. The effect of var…
Natural fiber reinforced composites are gaining popularity over conventional materials due its low cost, easy accessibility, non toxicity and most important feature - the biodegradability. Since broad varieties of natural fibers are available on earth, hence their merits can be incorporated in one by means of hybridiz…
Spesimen uji pukul Charpy yang biasanya dari logam yang dicetak dengan melakukan pengecoran tidak bisa dibuat sempurna karena sudut-sudut takikannya kecil dan sangat susah dibuat. Untuk itu peneliti mencoba membuat spesimen dari plastik yang dihasilkan dari printer 3D yang mana takikan atau sudut-sudut pada spesimen u…
High voltage insulators are widely deployed in power systems to isolate the live-and dead-part of overhead lines as well as to support the power line conductors mechanically. Permanent, secure and safe operation of power transmission lines require that the high voltage insulators are inspected and monitor, regularly.…
Calcium phosphates (CaP) represent an impressive kind of biomedical material due to their excellent biocompatibility, bioactivity, and biodegradability. Their morphology and structure highly influence their properties and applications. Whilst great progress has been made in research on biomedical materials, there is s…
Thick-shell not only provides colloidal quantum dots (QDs) stability and workability, but also plays a significant role in passivation of QDs surface defects and change of electron transport characteristics of QDs. Here, the dedicated design and synthesis of high luminescence CdZnSe/CdSe/CdZnSe quantum wells are repor…
COMSOL Multiphysics software is multipurpose software which can be used in every field. COMSOL Multiphysics to have less work in India. I have to review many papers on COMSOL but all the papers out of India. I have decided to work on COMSOL Multiphysics. This paper presents laminar flow inside the pipeline to calculat…
As we know Peltier Effect is the presence of heating and cooling at an electrified junction of two different conductors. Over the years we've realized that fridge and climate control systems are the most vitality devouring home apparatuses and because of this numerous analysts had concocted a lot of examines in this f…
Recent studies showed that quantum dots (QDs) materials such as cadmium (Cd) and lead (Pb) are commonly used as sensitizer in solar cell applications. This is mainly because they have high potential in light harvesting. However, these materials are highly toxicity and very harmful to the environment. Therefore, curren…
Analytical correlations of mathematical model that characterizes the processes of development of corrosive cavity on the surface of underground metallic pipeline are analysed. A pipeline in the environment of moist soil with solution of electrolyte is placed.In the top of cavity a crack appears and translates the syst…
In this study, the drying behavior of mint which is one of the medicinal plants in freeze-drying was investigated. The products were dried at three different temperatures (40, 50, 60oC) and three different pressures (30, 50, 80 kPa) in a freeze-drying system designed as a prototype. Drying time is decreased with incre…
The transport property of six types of individual carbon nanotubes (CNT) with specified chiral indices at high temperature is investigated on a home‐made apparatus. It is found that the resistivity of all individual CNTs increases with temperature monotonically, whereas the mobility decreases with temperature and foll…
PURPOSE: We aimed to assess whether insulating covers and warming systems cause artifacts in fluoroscopy, and whether they alter the radiation dose. METHODS: Eight insulating and warming systems were wrapped around the phantom in order to obtain images in fluoroscopy, and to measure the absorbed and scattered radiatio…
Human activities increasingly accentuate the imbalance of hydrosystems. The aim of the study is to contribute to the knowledge of phytoplankton and some physicochemical parameters related to the Batika river with a view to proposing methods of monitoring for sustainable production of carp fry. Sampling took place mont…