Materials Literature
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The clothing structure should allow, indifferent of destination, a continuous or near continuous exchange of air, even in the case when it use special treatments for materials used. Depending on environmental conditions and status of the body conditions, can simulate a range of comfort features for obtain an optimal a…
During the commissioning phase of the PS Multi-Turn Extraction (MTE) and the following operational period a number of limitations were observed, namely activation of the magnetic septum in straight section 16, fluctuation of the fraction of particles trapped in the islands, and instabilities of the injection trajector…
Features related to determined and probabilistic approaches to assessment of static durability of sophisticated technical systems’ elements have been considered in this paper. These approaches allow define the strength reliability indicator characterizing probability of system element refusal (damage) at set modes of…
This study proposes to produce well-aligned nanorod arrays containing NiSi thin film to improve the electrochemical performance of Si based anodes. In this respect, NiSi thin films made of nanorods are produced via glancing angle electron beam deposition (GLAD) technique. The structural and morphological properties ar…
Sandwich panels made of thin polymer composite materials have been developed and characterized as an alternative material to the mild steel sheet sheets conventionally used as face sheet materials [outer cover] for refrigerator, washing machine, and in automotive appliances like automobile, boat etc. In this paper san…
PURPOSE: This theoretical work contains a detailed investigation of the potential and sensitivity of phase-based x-ray scattering for cancer detection in biopsies if cancer is in a very early stage of development. METHODS: Cancer cells in their early stage of development differ from healthy ones mainly due to their fa…
The influence of limestone type and nanosilica on the resistance of cement to the thaumasite form of sulfate attack (TSA) was systematically investigated. The sulfate attack of mortar specimens was evaluated using visual examination and mass, density and strength measurements. Samples were selected from the surface of…
$Ag(Ta,Nb)O_3$ materials have a perovskite structure with a low loss tangent. These materials have been widely researched for their applications as high-frequency, passive components. Also, $Ag(Ta,Nb)O_3$ materials have weak frequency dispersion with high dielectric permittivity which gives them enormous potential for…
TiO2 nanofibers (NFs) with different diameters (range from 100 nm to 500 nm) have been prepared by electrospinning technique with the subsequent process of heat treatment. The obtained NFs are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and thei…
Asymmetric and symmetric L-lysine N-carboxylic anhydrides based on perylene bisimide derivatives were successfully synthesized and grafted onto silicon wafers via surface-initiated ring-opening polymerization. The grafted n-type semiconductor film was flat and compact, and its thickness could be tuned by variation of…
The spinel phase LTO is considered to be one of the most promising anode materials for lithium-ion batteries. Firstly, it is the so-called zero-strain material, enabling an extremely long cycle life and excellent capacity retention. Secondly, there is no Solid Electrolyte Interface layer formation on LTO during cyclin…
An angular spectrum analysis system was demonstrated to monitor the optical resonant mode of a photonic crystal (PC) sensor comprised of a one-dimensional grating structure. Exposed to solutions with different refractive indices or adsorbed with biomaterials, the PC sensor exhibited changes of the optical resonant mod…
The high temperature thermal stability, phase transformation characteristics and heat capacity of a Fe‐0.28Mn‐0.55Si‐0.045C (mass%) magnetic iron base alloy have been investigated by dynamic and drop calorimetry techniques. Upon slow heating, the following phase changes are found to take place: αferro + (Fe,Mn)3C → αp…
In this paper, four apodization functions are proposed for silicon-on-insulator (SOI) strip waveguides with sidewall-corrugated gratings. The effects of apodization functions on the full width at half maximum (FWHM), the side-lobe level, and the reflectivity of the reflection spectrum are studied using the coupled-mod…
ABSTRACT A series of side‐chain‐tethered copolymers containing the N‐(2‐ethylhexyl)‐N′‐(thiophene‐3‐yl)‐3,4:9,10‐perylenebis(dicarboximide) (thiophene‐PDI) moieties and 4,4‐diethylhexyl‐cyclopenta[2,1‐b:3,4‐b′]dithiophene unit were synthesized via Grignard metathesis polymerizations. With the incorporation of pendent…
압전 액추에이터(Piezoelectric actuator)는 빠른 응답 특성, 넓은 대역폭, 우수한 반복 정밀도, 그리고 높은 분해능의 특성으로 인하여 다양한 산업분야에서 폭넓게 사용되고 있다. 하지만, 압전 액추에이터에는 히스테리시스 효과(Hysteresis effect)가 발생되는 단점이 있으며, 이는 시스템의 성능을 저하시키는 주요한 원인으로 알려져 있다. Generalized Prandtl-Ishlinskii(GPI) model을 이용한 기존 연구에서는 히스테리시스 효과를 제거하기 위하여 히스테리시스를 수리적으로 모델링하고, 그 결과로부터 역 히스테리시스를…
In this work, statistical formulations of the temperature dependence of ionized and neutral impurity concentrations in a semiconductor, needed in the charge balance equation and for carrier scattering calculations, have been developed. These formulations have been used in order to elucidate a confusing situation, appe…
In the yeast Kluyveromyces lactis, the pyruvate decarboxylase gene KlPDC1 is strongly regulated at the transcription level by different environmental factors. Sugars and hypoxia act as inducers of transcription, while ethanol acts as a repressor. Their effects are mediated by gene products, some of which have been cha…
Deep Cryogenic Treatment (DCT) is now extensively used as supplementary process for the achievement of specific goals in many engineering applications like manufacturing of high precision & accurate parts, press tools, welding tips, improving wear resistance etc.In the present study DCT was applied to inter critically…
Bismuth based ferroelectric ceramics are drawing more attention due to being environmentally friendly. The studies are mainly focused on improving electrical properties of these ceramics, whereas studies on mechanical properties are scarce. Mechanical properties of solid solution of sodium bismuth titanate with barium…