Materials Literature
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Due to large variation of the solar energy availability in a day, energy storage is required in many applications when solar cells are used. However, application of external energy storage devices, such as batteries and supercapacitors, increases the cost of solar energy systems and requires additional charging circui…
The generation and control of the valley-polarized current play the key roles in valleytronics applications, but still remain as tough challenges. We propose a general idea of switchable valley injection, and predict theoretically that a ferromagnet-covered graphene junction would take the role of a valley injector, w…
Analysis of X-ray diffraction data on crystals of boron carbide and its derivatives reveals an increase of 1.5–3 times in the thermal vibration amplitude (U eq) of the central atom in the XYZ group, compared to other atoms in the structure. Reasons for this phenomenon are analyzed to answer the question of whether thi…
In the present work, a novel method employing air-bubble cavitation (induced by air bubbles passing small glass balls) combined with nanosized ZnO powder acting as an assistant catalyst, was proposed to degrade some organic dyes in aqueous solution. It was shown that the Acid Red B dye as a model organic pollutant can…
It is shown that the structural features of biporous silica and concentration of hydroxyl groups on the surface determined the regularities of hemoglobin adsorption on silica. It is concluded that the limiting values of protein adsorption per unit of the adsorbent surface fell as the temperature of adsorbent synthesis…
Nanostructured LiFePO4 is appealing cathode material for rechargeable lithium batteries. Herein, however, we report the intriguing anode properties of carbon coated LiFePO4 nanocrystals. In the potential range of 0–3.0 V, the LiFePO4 nanocrystal electrodes afford high reversible capacity of 373 mAh[Formula: see text]g…
Bacterial-induced mineralization has been explored for protection and consolidation of degraded limestone, concrete and plaster by precipitation of calcium carbonate. It is the first time that Bacillus sphaericus was used for consolidating the nonsterilized decayed wall paintings samples by immersing them in sterile n…
We have successfully demonstrated the proof-of-concept for stretchable organic photovoltaics (OPVs) using a transfer-printed microcell array, which represents the first stretchable OPVs using conventional device layouts that employ indium tin oxide (ITO) electrodes. Upon releasing the pre-strain, the interconnects ado…
Hyperbranched poly(amidoamine) (HPAMAM), structurally analogous to polyamidoamine dendrimer (PAMAM) dendrimers, has been suggested to be an effective carrier for gene delivery. In the present study, glutamic acid-modified hPAMAM was developed as a novel non-viral gene carrier for the first time. The hPAMAM was synthes…
Purpose – The purpose of this paper is to explore the influence of hole on shielding effectiveness (SE) of electromagnetic shielding (EMS) fabric under incident polarization wave, and to propose a “Key Size” theory to explain the influence mechanism. Design/methodology/approach – “Key Size” parameters describing hole…
BACKGROUND: Determination of quartz by Fourier transform infrared spectrometry (FTIR) is not specific: the obtained results are influenced by matrix components, some of which cause spectral interference. The aim of the study was to evaluate the effect of dust components responsible for spectral interference with quart…
Thallium Bromide (TlBr) is a promising room-temperature radiation detector candidate with excellent charge transport properties. However, several critical issues are needed to be addressed before deployment of this material for long-term field applications. In this paper, the relevance and, scientific and technologica…
Extreme Ultraviolet (EUV) Lithography is still viewed as the most promising approach for maintaining the pace of Moore's Law. Recent real achievements in EUV Lithography (EUVL) have encouraged semiconductor manufacturers to reconsider their road maps. One of the principal challenges in the ongoing EUVL implementation…
The decreasing size and increasing complexity of photomask features, driven by the push to ever smaller technology nodes, places more and more challenges on the mask house, particularly in terms of yield management and cost reduction. Particularly challenging for mask shops is the inspection, repair and review cycle w…
Reduction of noise in the transmission path is a very important environmental problem. The standard method to reduce this noise level is the use of acoustic barriers. In this paper, an acoustic metamaterial based on sound transmission through subwavelength slits, is tailored to be used as an acoustic barrier. This sys…
Abstract Three antistatic additives were applied to improve the antistatic abilities of lead styphnate and lead azide. It has been found that PVA and DEX are more effective antistatic additives for LA, whereas CMC and DEX are more appropriate for LS by electrostatic accumulation test. The dynamic vacuum stability test…
Nitinol-based vascular devices, for example, peripheral and intracranial stents, are limited by thrombosis and restenosis. To ameliorate these complications, we developed a technology to promote vessel healing by rapidly seeding (QuickSeeding) autologous blood-derived endothelial cells (ECs) onto modified self-expandi…
This article aims to study the friction and wear behavior of Ti3Al2.5V alloy sliding against EN-31 steel under dry condition using a multi-tribotester. The effect of variation in load and sliding velocity on wear rate, average coefficient of friction, and contact temperature has been studied and analysis of wear debri…
A piece of polychrome and gilded cartonnage mask was excavated by the Ministry of Antiquities in Saqqara region. It belongs to the late period (664 – 332 BC). The mask upon mummy presented a gilded face with heavy wig height 30–40 cm was painted with green, black eye brow and red mouth. Cartonnage is a composite mater…
Using a new multi-electron multi-ion coincidence apparatus and soft x-ray synchrotron radiation we have determined branching ratios to final Xe n+ states with 2 < n < 9 from the 4d −1 , 4p −1 , 4s −1 , 3d −1 and 3p −1 Xe + hole states. The coincident electron spectra give information on the Auger cascade pathways. We…