Materials Literature
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Remote optoelectronic probing is one of the most actual aspects of overhead electric line maintenances. By installing such systems on a helicopter (for example) it becomes possible to monitor overhead transmission line status and to search damaged parts of the lines. Thermal and UV-cameras are used for more effective…
Colloidal Quantum Dots (CQD), due to their extremely large optical absorption coefficient and tunability of the absorption bands, are very promising for the realization of photodetectors. PbS quantum dots, in particular, can be effectively employed as a material for near infrared photodetectors with sensitivity peaks…
Au nanocrystals are grown on the tips of CdSxSe1−x (x = 0–1) anisotropic semiconductor nanocrystals. The growth mechanism is investigated. The influence of the S:Se ratio in tuning the excited-state properties of Au/CdSxSe1−x anisotropic nanocrystals and its influence on the photocurrent response and hydrogen producti…
Abstract Polymere Nanokomposite erfahren heutzutage zunehmende Bedeutung für die Erzeugung funktioneller Beschichtungen. Zu diesem Zweck werden maßgeschneiderte modifizierte Nanopartikel in eine Harzmatrix eingebracht und die Eigenschaften einer so erzeugten Beschichtung wesentlich verbessert. In dieser Arbeit wird de…
Розв’язується квантово-механічна задача про рух електрона в зовнішніх однорідних схрещених електричному та магнітному полях. Шляхом розв’язання рівняння Шредінгера знайдено вираз для хвильової функції електрона, що рухається в такій суперпозиції електромагнітних полів. Частина хвильової функції електрона, що описує йо…
Organ dose calculations performed using human phantoms can provide estimates of astronauts' health risks due to cosmic radiation. However, the characteristics of such phantoms strongly affect the estimation precision. To investigate organ dose variations with body size and posture in human phantoms, a non-uniform rati…
This article investigates the effect of low-level ionizing radiation, namely X-rays, on the micro structural characteristics, resistance, and corrosion resistance of TIG-welded joints of AISI 304 austenitic stainless steel made using AISI 316L filler rods. The welds were made in two different environments: natural atm…
The possibilities and practical aspects of application of orbital welding for pipelines in aviation gas turbine engines are investigated.
Abstract In this study, the gradient grain induced by punching deformation and recovery treatment on a cupronickel alloy surface sample were investigated, and their effects on corrosion resistance were measured by atom force microscopy (AFM), X‐ray diffraction (XRD), electrochemical measurement, electron work function…
Metal sulfides-based nanomaterials have been used as a class of efficient solar driven photocatalysts. However, the H2-production rate observed over these photocatalysts remains problematic. Here, the AgInS2-xAg2S-yZnS-zIn6S7 (x, y, z = 0 or 1) nanocomposites with controlled compositions have been successfully prepare…
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Colloidal gels are defined as systems that, to exhibit solid-like properties, must fulfill both conditions, local arrest of the particles and formation of space spanning networks. This chapter highlights the essential components and properties of colloidal gelation. It focuses on three key concepts related to colloida…
Porous fibers are advantageous for filtration systems, drug delivery systems, and in the field of tissue engineering, in comparison to their non-porous counterparts. In this study, we developed a facile technique including two steps to generate poly(3-hydroxybutyrate-co-3- hydroxyvalerate) (PHBV) porous fibers with a…
Because of high surface-to-volume ratio, few layers MoS2 material as a kind of 2D materials has been attracted more attention nowadays to be used for photonics devices. We investigated the performance of few-layer MoS2 when it is covered on a side polished fiber (SPF) to sense relative humidity (RH) of environments. T…
Symplocos paniculata is a medicinal plant used by native healers to manage gastrointestinal ailments. The crude methanolic extract of S. paniculata was screened pharmacologically both in vitro and in vivo for the validation of its therapeutic potential. It suppressed the spontaneous activity of isolated rabbit jejunum…
Optical and electrical properties (Haze spectra, carrier concentration, mobility, resistivity) of zinc oxide thin films deposited on glass substrates were studied by plasma treatment and by thermal annealing. Films of copper oxides on the glass and CuO/ZnO structures were formed by vacuum deposition of copper films fo…
ABSTRACT The incorporation of carbon nanofiber (CNF) into glass fiber (GF) composites is a potential route to extend polymer composite service‐life and enhance mechanical properties. Under nonstatic conditions, only limited information concerning water uptake and contaminant release properties of nanocomposite materia…
Stochastic foam models are generated from Voronoi spatial partitioning, using the centers of equi-sized hard spheres in random periodic distributions as seed points. Models with different levels of polydispersity are generated by varying the packing of the spheres. Subsequent relaxation is then performed with the Surf…
A simple method of preparing stimuli‐responsive polystyrene (PS)/polycaprolactone (PCL) nanolayered films with by growing poly(N‐isopropylacrylamide) (PNIPAM) brush on the surface by surface‐initiated polymerization is reported. Atom transfer radical polymerization (ATRP) initiator with a benzophenone moiety is attach…
Austempered bainitic ductile iron has been widely used in machinery components and parts due to its low fabrication cost, excellent mechanical properties, and abrasive wear resistance. In order to get a fine bainitic matrix, austempering process is usually adopted which consists of austenitizing temperature, austemper…