Materials Literature
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The main objective of this work is to increase fundamental knowledge on Intrinsic Conducting Polymers (ICP), especially polyaniline (PANI) mixed with polyurethane (PU), to improve their electrical properties. A morphological study shows that these materials are composed of spaghetti-like conducting chains mixed in an…
Results of the evaluation of lightweight materials for aircraft turbine engine rotor failure protection are presented in this report. The program consisted of two phases. Phase 1 was an evaluation of a group of composite materials which could possibly contain the impact energies of 1.0 x 10 6 inch-pounds generated by…
In the title compound, C(15)H(13)NO(4)·H(2)O, the organic mol-ecule adopts a V-shaped conformation in which the dihedral angle between the five-membered rings is 68.33 (5)°. The cyclo-hexenone ring adopts an envelope conformation, with one of the methyl-ene C atoms displaced by 0.607 (4) Å from the plane through the o…
A eucaliptus kraft pulp of a Brazilian mill, extracted from the first washing stage before oxygen delignification, was bleached at more than 50 different bleaching conditions with the target to reach the optimum cost. Considering the O/OD*(EP)DP sequence, the best result was reached carrying out D* stage with soft con…
The asymmetric unit of the title compound, [Ni(C(18)H(24)N(2)O)(2)](NO(3))(2), consists of one half of the centrosymmetric nickel(II) complex cation and a nitrate anion. The Ni(II) atom, lying on an inversion center, is four-coordinated by the phenolate O atoms and imine N atoms of two Schiff base ligands, forming a s…
Савремени материјали, међународна научна конференција - Contemporary materials, International scientific conference,Савремени материјали 2010 - научна конференција у Бањој Луци
Engineered metallic nanomaterial particles (MENAP) represent a significant breakthrough in developing new products for use by consumers and industry. Skin application (e.g., via creams and sprays containing nanoparticles) may provide a key route of potential intake of MENAP and can lead to retrograde transport from ne…
Vol. 43, No.3 (2009) pp.171–176 A novel friction meter that allows us to measure normal force and friction force at the same time was developed, and the frictional behavior of cosmetics during application was investigated for an evaluation of a tactile feeling, permeability. As a result of measurements of four lotion…
Abstract Alkali‐metal containing lanthanide oxotantalates(V) with high Ta2O5 content can be obtained using surfacially oxygen‐contaminated tantalum containers for acid‐base reactions with lanthanide oxides and alkali‐metal halides as fluxes. Following this way, the two title compounds K2LaTa5O15 and NaTm2Ta15O41 were…
After the maglev force (both levitation and guidance forces) relaxation property of a high-temperature superconductor (HTS) above a permanent-magnet guideway (PMG) was studied experimentally, the HTS bulk was horizontally moved in the lateral direction with different displacements above the permanent-magnet guideway.…
In the title compound, [Cu(NO(3))(2)(C(18)H(16)N(2)O(2))], the Cu(II) ion is six-coordinated in a Jahn-Teller-distorted octa-hedral environment defined by two O and two N atoms from the ligand and two O atoms from two monodentate nitrate anions.
A lens system is proposed that not only provides spherical correction of the objective lens by charges that are induced on a thin foil, in the way proposed in a paper by Otto Scherzer [Optik 56(2), 133-147, 1980], but also provides Zernike phase contrast by means of an appropriate phase shift of the scattered electron…
Treatment of incomplete cubane-type clusters [(Cp*M){Re(L)}(2)(mu(3)-S)(mu(2)-S)(3)] (M = Ir (1a), Rh (1b); Cp* = eta(5)-C(5)Me(5); L = S(2)C(2)(SiMe(3))(2)) and [{(Pmb)Ru}{Re(L)}(2)(mu(3)-S)(mu(2)-S)(3)] (Pmb = eta(6)-C(6)Me(5)H) with 1 equiv of [Pt(PPh(3))(3)] gave tetranuclear tetra(sulfido) clusters having raft-ty…
Abstract The electron micro diffraction technique and pseudopotential ab initio calculations were implemented to study in details the formation and mechanism of growth of the tungsten whiskers during the reduction of nickel tungstate by CO gas. It has been shown that the W whiskers prefer to grow as crystals oriented…
The method of random sampling was introduced for the first time in the nutation nuclear quadrupole resonance (NQR) spectroscopy where the nutation spectra show characteristic singularities in the form of shoulders. The analytic formulae for complex two-dimensional (2-D) nutation NQR spectra (I = 3/2) were obtained and…
Understanding the removal factor for specific conditions is essential to estimate removable surface contamination levels by wiping. The removal characteristics of dry foamed polystyrene pads and filter paper applied to polyvinyl chloride flooring are investigated using C-thymidine under various conditions (i.e., weigh…
The main objective of this study was to conduct an investigation on the performance of organophilic clay as adsorbent in the oil/water separation process. The originality of this work is its focus on Brazilian clay. The gray organophilic clay was prepared from gray clay and quaternary ammonium salts. The samples were…
In order to mimic the histidine binding motives of naturally occurring histones as DNA complexing proteins, hyperbranched poly(ethylene imine) and polyglycerol were functionalized with imidazole or 3-dimethylamino propyl groups. These new polycationic polymers were tested for interaction with dye-labelled oligonucleot…
Abstract Biocomposite PP‐g‐PAAc‐CS films based on PP were generated and utilized as support of methylene blue, a thiazidic dye. Using a photograft polymerization of acrylic acid, the PP film was functionalized with carboxyl groups (PP‐g‐PAAc), which attached chitosan by electrostatic bond. A longer poly(acrylic acid)…
Molecular dynamics simulations are carried out to investigate the influence of edge dislocations on the lattice strength in iron single crystals under tension perpendicular to the dislocation slip plane.Simulations are performed at different temperatures and with different densities of edge dislocations on the ( 1 0 1…