Materials Literature
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ABSTRACT: The effects of water and glycerol on the molecular mobility of a soy‐protein isolate (SPI)‐based film were investigated using 1 H nuclear magnetic resonance (NMR). SPI‐films were prepared with different glycerol contents and equilibrated to various levels of water activity (a w ). The distributed transverse…
Abstract Poly(propylene)/clay nanocomposites were prepared by melt intercalation, using pristine montmorillonite (MMT), hexadecyl trimethyl ammonium bromide (C16), poly(propylene) (PP) and maleic acid (MA) modified PP (MAPP), The nanocomposites structure is demonstrated using X‐ray diffraction (XRD) and high resolutio…
Fast 30 Jahre nach der theoretischen Vorhersage wurde eine stabile und gut charakterisierte Verbindung synthetisiert, in der Tetrathiafulvalen- und Tetracyanchinodimethan-Einheiten kovalent verknüpft sind (1, siehe Schema). Die extrem kleine HOMO-LUMO-Lücke von 1 (0.17 eV) ermöglicht erstmals, einen thermisch angeregt…
The opening roller, which is one of the three most important items in the OE rotor spinning system, influences yarn quality and spinning performance. In addition to the raw materials, roller speed and type are critical. In this work, seven different polyester/waste (cotton noil, recycled fibers, flat waste, etc.) roto…
Abstract From a long time, the traditional source of collagen has been mammals wastes, mainly bovine and porcine skins and bones. This study undertakes a comparative analysis of the viscoelastic behaviour and the structural properties of gelatin gels from both mammalian and fish origins. All the rheological measuremen…
This article reports the first perbromination of β-pyrrole and meso-phenyl groups of the 5,10,15,20-tetrakis(3',5'-dimethoxyphenyl)porphinato copper(II) to generate highly brominated porphyrin, 2,3,7,8,12,13,17,18-octabromo-5,10,15,20-tetrakis(2',6'-dibromo-3',5'-dimethoxyphenyl)-porphinato copper(II), CuT (3',5'- DMP…
Stearoyl-CoA desaturase (SCD) is an integral membrane protein of the endoplasmic reticulum that is rapidly and selectively degraded when isolated liver microsomes are incubated at 37 degrees C. We previously reported the purification of a 90-kDa microsomal protein with SCD protease activity and characterized the inhib…
A novel azobenzene compound bearing a short poly(ethylene glycol) methyl ether side chain, N-methyl-N-{4-[(E)-(4-nitrophenyl)diazenyl]phenyl}-N-(3,6,9,12,15,18,21,24-octaoxapentacos-1-yl)amine (RED-PEGM-8) was synthesized and characterized. RED-PEGM-8 exhibits a thermal behavior similar to that of Disperse Red-1; howe…
Reducing the high gas permeability of plastic packaging is of serious concern for a variety of applications in food packaging and microelectronics arena. In the development of high altitude scientific balloons, the potential for unmanned mission success is critically related to the improvement in helium barrier capabi…
Radioiodine entering the containment from the postaccident primary circuit in vapor or gaseous form, as observed in the Phebus FPT0 and FPT1 tests, has a direct impact on the source term evaluation. State-of-the-art fission-product transport codes based on the assumption of thermochemical equilibrium failed to predict…
A new cycle model of a two-stage combined semiconductor thermoelectric device that is used as a heat pump is established. The influence of Joule heating due to the electric current and heat leak due to the temperature difference between the hot and the cold junctions on the performance of the system is investigated. T…
Abstract Commercially available butter, regular‐fat margarine, and a fat‐reduced margarine (38% fat w/w) were stored between 10 and 35°C for up to 4 d to elaborate on the relationship between droplet size and solid fat content (SFC) that exists in these spreads. At 10°C, the mean volume‐weighted droplet size for butte…
The effect of texture and β grain size on the superelasticity (SE) in Cu-Al-Mn-based alloys was investigated by tensile testing. The SE strain increases with increasing relative grain size d/t (d: grain size and t: specimen thickness), which is explained as being due to a relaxation of the grain constraint in the poly…
In this study, the evolution of the flow stress for grain sizes ranging from about 11 to 1 µm under shear deformation was examined using two-dimensional discrete dislocation dynamics. The grain boundaries were assumed to be both the only sources for nucleation of the dislocations and also the only obstacles to the dis…
Abstract Elastomers are soft materials that can be reinforced by dispersing into them nanosized solid particles. Common examples of the latter are silica or carbon black aggregates. However, the mechanism of reinforcement is still not yet fully understood. Our work consists in investigating by small‐angle X‐ray scatte…
To clarify the essential features of Brill transition of aliphatic nylons, structural changes have been investigated by X-ray diffraction and infrared spectroscopic methods for the compounds CH 3 (CH 2 ) 10 NHCO(CH 2 ) 9 CH 3 (designated as N11 ) and CH 3 (CH 2 ) 9 NHCO(CH 2 ) 8 CH 3 ( N10 ) which were assumed to be t…
The conductivity of tin‐doped indium oxide (ITO), a transparent conductor, is critically dependent on the amount of tin doping and oxygen partial pressure during preparation and annealing. Frank and Köstlin ( Appl. Phys. A , 27, 197–206 (1982)) have rationalized the observed carrier concentration dependence by postula…
Comparative modeling methods are commonly used to construct models of homologous proteins or oligomers. However, comparative modeling may be inapplicable when the number of subunits in a modeled oligomer is different than in the modeling template. Thus, a dimer cannot be a template for a tetramer because a new monomer…
Abstract High molecular weight poly(phenylene thioether) ( 3 ) was successfully obtained by the polycondensation of 4,4′‐thiobisbenzenethiol ( 1 ) and dibromomethane ( 2 ) with a variety of feed ratios in the presence of 1,8‐diazabicyclo[5,4,0]undec‐7‐ene (DBU) in 1‐methyl‐2‐pyrrolidinone (NMP) at 75°C. The resulting…
Abstract Natural soils change by long-term pedogenetic mechanisms, but tillage effects can also strongly affect the evolution of soils, mainly their physicochemical properties. The present paper describes the impact of fertilizers and amendments on soil mineralogy in experimental plots, without plant interaction. The…