Materials Literature
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Methylcellulose (MC) thin films on a Si substrate, with a thickness of ∼200 Å (near the radius of gyration Rg of the polymer), were exposed to a saturated water vapor condition to study the moisture absorption and swelling behavior in situ and the changes in the film surface topography, structure and temperature-respo…
A diiron dithiolate complex 1o with a dithienylethene (DTE) phosphine ligand has been elaborately designed and fully investigated by spectroscopic and DFT computational studies. Upon irradiation with UV light, the DTE moiety in complex 1o undergoes an excellent photocyclization reaction to attain ring-closed state 1c…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation A. Kh. Yuldashev, S. S. Negmatov, N. S. Abed-Negmatova, A. G. Abdurakhmanov, Sh. A. Bozorov, Sh.…
The tensile, impact and hardness characteristics as well as the corrosion rates of locally produced RST37-2 Steel and imported API 5L x 60 steel which is a conventional pipeline steel were studied and compared under simulated service conditions. The Mechanical tests were conducted using Tensometer, Izod impact machine…
Thirty- two sediment samples were analysed for radiogenic heat production due to the three natural radionuclides from Ogun river, using NaI(Tl) Gamma-Ray Spectrometer detector to determine the elemental concentrations of the sediments. Ogun river sediments had Shown low radiogenic heat production rate. The estimated m…
A new series of 3-alkyl-ester-substituted polythiophenes, bearing amino-nitro substituted azobenzenes and flexible tetra(ethylene glycol) spacers, have been synthesized and characterized. First an amphiphilic monomer (E)-2-(4-((4-nitrophenyl)diazenyl)phenyl)-5,8,11-trioxa-2-azatridecan-13-yl 2-(tiophen-3-yl) acetate (…
Carbon is not compatible with the long term use required for plasma facing components in future fusion reactors of the tokamak type e.g. from the point of view of erosion and tritium retention.Wand Be were chosen as plasma facing materials for ITER. JET was equipped with beryllium (as opposed to C or C-coated) walls i…
The mixed ligand complexes of Mn(II),Fe(II ), Co(II),Ni(II),Cu(II), Zn(II) and Cd (II) with 1-nitroso-2-naphthol (C 10 H 7 NO 2 ), symbolized (NNPhH)] and amino acid L-phenylalanine ( C 9 H 10 NO 2 ) , symbolized ( phe H), were synthesized and characterized by: Melting points, Solubility, Molar conductivity. determina…
The slime mouldPhysarumpolycephalumis a suitable candidate organism for soft-matter robotics because it exhibits controllable transport, movement and guidance behaviour.Physarummay be considered as a smart computing and actuating material since both its motor and control systems are distributed within its undifferenti…
Carbon nanotubes (CNTs) reinforced Sn-58Bi composites were successfully fabricated through ball-milling method and low temperature melting process.The influence of multi-walled carbon nanotubes (MWCNTs) on the mechanical strength and ductility of Sn-58Bi lead-free alloy was studied.The mechanical test results show tha…
For a graph G and a real number α (α 6= 0, 1), the graph invariant Sα(G) is the sum of the α th power of the signless Laplacian eigenvalues of G. Let IE(G) denote the incidence energy of G, i.e., IE(G) = S 1 2 (G). This note presents some properties and bounds for Sα(G) and IE(G).
ofThesis: Srdjan Nešić Top of the Line Corrosion (TLC) is a major issue in the oil and gas industry.Extensive research in both the laboratory and field has been conducted to understand its mechanism and to develop methods to mitigate TLC in pipelines.TLC models have been developed to predict the degree of corrosivenes…
BACKGROUND: Although durable polymer coated drug-eluting stents (DES) are standard care in percutaneous coronary interventions, new stent platforms employing biodegradable polymer based drug delivery are increasingly being used in clinical practice. AIM: To evaluate the short- (28 days) and medium-term (90 days) vascu…
As a case-study the local impact measurement of a sintering plant concerning the human exposure to air PCDD/F pollution is in progress, through the use of two types of deposimeters (conventional and wet & dry). This paper deals with some preliminary results and some differences that must be taken into account when the…
Thermally evaporated lead phthalocyanine (PbPc) and copper phthalocyanine (CuPc) films are deposited on a glass substrate of film thicknesses 150 nm, 300 nm and 450 nm. Thickness of 450 nm thin films prepared at room temperature has been annealed at 323 and 373 K. The optical properties and spectral behavior of as dep…
Thin photosensitive layer of As2S3 sandwiched in between a-Si core and negative thermo-optic polymer over-cladding enables trimming of athermal rings. Exposure to visible light can shift their resonances by 195GHz at trimming rates around 1GHz/min.
The market price of Ag has fluctuated 10X over the past 10 years and has impacted the manufacturing cost of Si solar cells and the price of Si PV. Reduction of Ag consumption can decrease this cost, however, such reduction may come at the expense of cell performance. In order to address the issue of Ag cost reduction…
El pardeamiento enzimático, catalizado principalmente por la Enzima Polifenol Oxidasa (PPO), es uno de\nlos principales problemas que afectan la calidad y limitan la vida útil de frutas y hortalizas mínimamente procesadas.\nLos compuestos tradicionalmente utilizados para inhibir la PPO, son los sulfitos. Sin embargo,…
Fly ash is a pozzolanic powdery residue collected i n electric or mechanical dust collectors following combustion of coal in coal fired power plants. A re latively new method of utilizing fly ash might be the direct application of mechanically activated (g round) fly ash as an individual hydraulic binder. There are ma…
The density functional calculations suggest that the expansion of the corrin macrocycle's N(4) core by 0.06-0.10 Å leads to an appreciable lowering of 100-150 mV vs. saturated calomel electrode in the reduction potentials of two biologically important B(12) cofactors namely methylcobalamin and adenosylcobalamin respec…