Materials Literature
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We perform first-principles calculations in the framework of density-functional theory to determine the effects of P doping on the electronic structure and optical properties of single-walled armchair silicon nanotubes. The calculated results indicate that the band-gap of single-walled armchair silicon nanotubes chang…
As one of the burgeoning physical vapor deposition (PVD) techniques, high power pulsed magnetron sputtering (HPPMS), which boasts high ionization rates of sputtered materials and does not suffer from macro-particles, has been investigated extensively recently. Herein, a new method to break down the discharge current i…
This paper explores the radial projection method for locally finite planar point sets and provides numerical examples for different types of order. The main question is whether the method is suitable to analyse order in a quantitative way. The findings indicate that the answer is affirmative. In this context, local vi…
In this, article ZnO nanostructure synthesized on seedless Si substrate by hydrothermal process using nutrient solution. Low concentration, 5 and 10 mM, equi-molar nutrient solution composed of zinc nitrate and hexamethylenetetramine (HMTA) and high concentration of 25 mM zinc nitrate and 12.5 mM hexamethylenetetramin…
We investigate the effects of niobium (Nb) on helium (He) dissolution and diffusion behaviors in tungsten (W) using a first-principles method. The results show that Nb can effectively reduce the solution energy of He in the bulk W, which is because of the charge density redistribution. This leads to a strong attractio…
This paper presents the design, fabrication, characterization and experimental verification of a perfect Multi-Band Metamaterial (MTM) absorber (MA) based on a simple configuration of a rectangular resonator and strips operating in microwave frequency regime. The proposed multi-band MA provides perfect absorption with…
ACTA CHIMICA SINICA DNA/ Pb 2 * ( 100875) DNA/ Pb 2 . G , C DNA . Pb 2 ,
New data on the morphology of 11 species of centric and araphid diatoms from the orders Melosirales, Fragilariales, Tabellariales, Rhabdonematales found during the late summer in uppermost brackish-water layer of a unique subpolar meromictic Lake Mogilnoye at salinity to 4 ‰ and temperature about 10 °С are presented.…
Let S(G^σ) be the skew-adjacency matrix of an oriented graph Gσ. The skew energy of G^σ is the sum of all singular values of its skew-adjacency matrix S(G^σ). This paper first establishes an integral formula for the skew energy of an oriented graph. Then, it determines all oriented graphs with minimal skew energy amon…
This research work concerns the preparation of a bi-layer antifogging (AF) coating on a polycarbonate plastic substrate. The bottom layer, serving as a mechanical support, is an organic-inorganic composite that is formed by embedding colloidal silica in a crosslinked network of γ-glycidoxypropyltrimethoxysiline. Atop…
In the Phytobenthos cross-Geographical Intercalibration Group (GIG): 11 Member States (see Table 2.1) submitted their lake phytobenthos assessment methods; Intercalibration (IC) was carried out for three broad common types: high alkalinity (HA), moderate alkalinity (MA) and low alkalinity (LA) lakes; Intercalibration…
Organic Photovoltaic (OPV) is a promising alternative to established crystalline silicon technologies due\nto its expected easy fabrication and low capital cost investments. Current OPV are typically manufactured\nby depositing active materials on plastic substrates like Polyethylene terephthalate (PET) or Polyethylen…
Medical textiles are one of the essential materials for the production of medical garments and have been developed in the past decades. A medical textile is a type of advanced technical textile materials and is classified according to its performance and functional properties as being suitable for medical or hygienic…
W artykule przedstawiono podstawowe parametry aktualnie produkowanych docierarek jednotarczowych. Opisano standardowy uklad docierania powierzchni plaskich i zamieszczono wyniki symulacji przebiegu trajektorii ruchu obrabianego przedmiotu dla zadanych parametrow obrobkowych. Uzyskane informacje o prognozowanym zuzyciu…
C) after 26 and 19 days in the CPNOC and CPAC, respectively; then decreased. The final compost is odourless and dark brown, especially in case of CPAC. Marked changes in pH were found. Organic matter (OM) and organic carbon (OC) decreased, whereas ash, nitrogen (N), phosphorus (P) and potassium (K) increased and conse…
The aim of Grenoble Sciences is twofold:
Silver sulphide is a semiconductor widely used as an infrared sensor and as an absorber material for solar cells. In this work, we report the preparation of Ag2S thin films from a new precursor using chemical spray pyrolysis technique. The thin films having various [CS(NH2)2]/[AgCl] were grown at different substrate t…
Coke strength is depends on coal thermoplastic and dilatation behavior, so it is very important to understand the behaviors for making high strength coke. In this study, change of coke pore structure were investigated with image analysis of coke cross section when coal combination of blended coal changed and ASP was a…
Article history: Received 28 February 2014 Received in revised form 25 May 2014 Accepted 6 June 2014 Available online 20 June 2014
The conversion of CO 2 into useful materials, such as CO, HCHO, CH 3 COOH, CH 3 OH and CH 4 , is considered to be one of the best ways to solve issues of global warming and energy shortages 1,2 .However, the activation of CO 2 , to form highpotential carbon compounds, requires a thermodynamic energy increase of about…