Materials Literature
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Bacterial infections represent an increasing worldwide threat. The number of untreatable diseases decreased after the 1950s due to the introduction of antimicrobial agents. However, since the 1980s, morbidity has risen again, and mortality due to respiratory infections, AIDS and tuberculosis now represents about 85% o…
The aim of this study was to investigate the effect of Fe3O4 (magnetite) nanoparticles on the properties of magnetitecontaining chitosan-poly(N,N-diethylacrylamide) semi-interpenetrated network (CS-DE-M semi-IPN) films. For that purpose, nanosized ( 50 nm) magnetite-containing CS-DE-M semi-IPN films were prepared at f…
Over the last few years novel two-dimensional materials and nanoscopically thin heteroepitaxial overlayers have attracted intense attention due to their unusual properties and important technological applications. Many physical properties of these systems such as thermal conductivity and electrical transport, are inti…
Aluminium as fuel using steam oxidant is an attractive energy source in combustion systems where high energy densities are desired. Most experimental and computational work has been done for combustion chamber operating at or near atmospheric pressures using oxidants of air or pure oxygen. Experimental studies conduct…
Objectives: We demonstrate a simple method for the synthesis of gold nanoparticles (Au NPs) via a boiling and refluxing methodology The proposed experiment also can help students to understand the factors involved in the stability of Au NPs by exploring the adsorption interaction between Au NPs and various substances
In this study a novel kind of reinforcing polymethylmethacrylate (PMMA) aas well as improving the electrical properties of polyetherimide (PEI) with a 2 nd generation of layered silicates is shown. Layered silicates are used as nanofillers in polymers due to their ability to increase the mechanical strength as well as…
Memristive switching in oxide semiconductors relies on the formation and disruption of conductive nano-filaments This effect is considered promising for the next generation of non-volatile memories. Yet, the switching event is a complicated electronic and ionic process, which may involve more than one mechanism. In or…
The lack of an inversion center in a material's crystal structure can result in many useful material properties, such as ferroelectricity, piezoelectricity and non-linear optical behavior. Recently, the desire for low power, high efficiency electronic devices has spurred increased interest in these phenomena, especial…
The pathogenic process that defines osteoarthritis (OA) is the imbalance between excess degradation of the extracellular matrix in articular cartilage and a decreased ability of chondrocytes to remodel the matrix. There are many factors that contribute to this disease including unchecked actions of matrix metalloprote…
Aluminium dan paduannya merupakan logam non ferrous yang cukup luas penggunaanya. Shaft propeller merupakan salah satu bagian terpenting dari instalasi penggerak kapal. HPDC (High Pressure Die Casting) merupakan salah satu metode dalam proses pengecoran. Heat treatment dilakukan untuk memperbaiki sifat mekanis dengan…
Extended Abstract Solution deposited printing process have been attracted for low cost, large-area electronic applications such as active-matrix display, electronic paper and flexible microelectronics [1]. Thin film transistor (TFT) is generally composed of electrodes, dielectrics and semiconductor layers. Printable m…
Non-contact seals are optimal solutions for the applications operating with relatively high speeds. In these seals, positively displacement pump's principle is applied. One sub-category of non-contact seals, screw seals are studied in detail, including their working principles, operating limits and technical propertie…
In lithium-ion batteries, lithium ions move between the battery's anode and cathode during charge and discharge. Carbon-based materials, like graphite and carbon micro-bead have used as anode materials for Li-ion battery. However, carbon-based anode materials have low coulombic efficiency and high irreversible capacit…
The asymmetric Fano resonance originating from the interference of a narrow resonance with a broad spectral line or continuum of states is a universal phenomenon which is observed in diverse quantum and classical systems. It has been under recent investigation because of its numerous potential applications, in sensors…
Polymer Matrix Composites(PMC) merupakan jenis material komposit dengan matrik polimer. Pada penelitian ini untuk merekayasa dan menganalisa bagaimana jika sekam padi digunakan sebagai bahan subtitusi serbuk kayu namun untuk pembuatan profil batang silindris. Material yang digunakan sekam padi dengan ukuran mesh 35 da…
The number of engineered nanomaterials (ENMs) being exploited commercially is growing rapidly, due to the novel properties of ENMs. Clearly, it is important to understand and ameliorate any risks to health or the environment posed by the presence of ENMs. However, there still exists a critical gap in the literature on…
The aim of this study was to obtain activated carbons by physical activation of the waste left after supercritical extraction of marigold and hops, provided by the Institute of New Chemical Syntheses in Pulawy (Poland). The precursors were first subjected to carbonisation at 500oC in nitrogen atmosphere. The chars wer…
The paper deals with the technology of fabricating the filters used in aircraft engines. The new methods of electrochemical dimensional processing are presented, which are used for collective processing of openings with various cross-sections in thin-walled filters.
This work investigates the applicability of strain induced magnetic anisotropy in the control of magnetic domain walls in magnetically soft magnetostrictive nanostructures. The mechanical coupling of piezoelectric and magnetostrictive materials is investigated as a method of controlling the strain in the magnetic mate…
در این پژوهش یک سری از کاتالیزورهای Pt/W-Zr-HMS به منظور استفاده در واکنش ریفرمینگ با نسبتهای مولی متفاوت از Si/Zr تهیه شد و سطح آنها با استفاده از تهنشست WO3 اصلاح گردید. کاتالیزورهای تهیهشده با استفاده از روشهای XRD ،NH3–TPD، جذب شیمیایی H2 و جذب نیتروژن شناسایی شد. اثر مقادیر مختلف زیرکونیم بر فعالیت و گزینشپذ…