Materials Literature
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The electrical deposition(electropolymerization)of polypyrrole, PPy, grafted by different ODN probes is the key to construct oligonucleotides, ODN, arrays on silicon devices bearing a matrix of gold microelectrodes. The straightforward functionalization of PPy allows finalizing a more general grafting based on affinit…
This paper focuses on no-load iron losses of turbine generators. To calculate iron losses of turbine generators a program was developed. In the program, core loss curves of materials used for stator core were reproduced precisely by using tables of loss coefficients. Accuracy of calculation by this method was confirme…
Abstract The effect of supercritical carbon dioxide (scCO 2 ) on the interfacial tension between a polymer melt pair—polystyrene (PS) and low density polyethylene (LDPE)—was studied using the pendant drop method at temperatures varying from 200 to 240°C and CO 2 pressures up to 18 MPa. The LDPE melt was prepared in a…
Quantum Rice Ramsperger Kassel (QRRK) calculations are carried out to calculate the pressure-dependent rate constants of reactions involving SiH4 as an association product. It is shown that good estimates of pressure-dependent rate constants can be obtained from QRRK in spite of the very poor treatment of the activate…
AIM: To investigate the photocatalytic killing effect of photoexcited TiO2 nanoparticles on human colon carcinoma cell line (Ls-174-t) and to study the mechanism underlying the action of photoexcited TiO2 nanoparticles on malignant cells.METHODS: Ls-174-t human colon carcinoma cells were cultured in RPMI 1640 medium s…
Introduction The US Department of Energy has recently issued a Grand Challenge in Hydrogen Storage. The ambitious goals for volumetric and gravimetric densities and the controlled release of H2 from materials at temperatures below 80 oC contained within this Grand Challenge demand the discovery of new materials and ca…
It is believed that space charge buildup in cross-linked polyethylene (XLPE) insulation is one of the main cause for premature failure of underground power cables. The space charge activities in XLPE depend on many factors such as additives, material treatment, ambient temperature, insulator/electrode interface, etc.…
Employing a modified injection-molding technology, where the mold is opened a short stroke after injection of the polymer melt, it is possible to manufacture plastic parts with a density reduction of 50% and more. For this processing approach, standard injection-molding equipment can be used. Together with an appropri…
Elderly cases offered Takizawa-Program as one of the rehabilitation techniques were evaluated statistically. Initially we clarified the characteristics of the total FIM (Functional Independent Measure) score and the relation between the number of improved items and of worsened ones. Furthermore, we investigated the mu…
Luminescent lanthanide racks are formed in solution through supramolecular assembly of lanthanide ions with a rigid bis-didentate sensitiser ligand and octadentate aminopolycarboxylate ligands.
A new 5-station beamline for protein crystallography is being commissioned at the Swedish synchrotron light source MAX-II at Lund University. Of the 2K/gamma = 14 mrad horizontal wiggler fan, the central 2 mrad are used and split in three parts. The central 1 mrad will be used for a station optimized for MAD experimen…
Past space missions beyond the confines of the Earth’s protective magnetic field have been of short duration and protection from the effects of solar particle events was of primary concern. The extension of operational infrastructure beyond low‐Earth orbit to enable routine access to more interesting regions of space…
This chapter reviews the basic ionisation processes which occur in SF6, the streamer mechanism which controls breakdown under relatively uniform field conditions, and the influence of electrode surface roughness on breakdown at high pressure. The characteristics of the partial discharges (corona discharges) which occu…
This article presents an analysis and comparison of the parameters of cotton yarn spun on the Fiomax EliTe compact spinning frame from Suessen, and on the PJ 34 conventional ring spinning frame. Combed and carded cotton yarns with linear densities of 15 tex, 18 tex, and 20 tex were manufactured from the same middle st…
PD deletion in Gas Insulated Substation(GIS) is very important to guarantee its safety and reliable operation. Detection of PD in GIS by inner-sensing method is studied based on electrical measurement in the paper. Two kinds of inner sensors including disk sensor and ring sensor are developed,their performance is stud…
In this study, data are provided that detail the first preparation of high surface area and structurally ordered mesoporous lanthanide oxides by a neutral surfactant supramolecular templating route. For the first time, retention of mesoporosity in lanthanide oxides (other than those of cerium) after surfactant removal…
We report on a rotatable waveplate using a vertically aligned deformed-helix ferroelectric liquid crystal (DHFLC) in the presence of the in-plane rotating electric field. In such device configuration, the helix of the FLC is continuously deformed and thus the effective birefringence increases as the in-plane electric…
Nylon‐6 (Ny‐6) and ethylene‐vinyl alcohol copolymer (EVOH) binary blends were prepared in various compositions via dynamic melt blending. In addition, 50/50 blends of EVOH with nylon‐6/6.9 (Ny6/6.9) and nylon‐11 (Ny‐11) were prepared to study the effect of nylon type on the structuring process under melt mixing. The p…
High-temperature strength, fracture behavior and microstructure were observed for monazite-coated alumina fiber-reinforced alumina matrix composites hot-pressed at 1200-1300°C. The composites with 27-41 vol% alumina fiber showed no significant change in strength at 25-1100°C. However, the strength of the composites de…
The influence of normal load on wear performance of graphite used in a 10 MW high temperature gas-cooled reactor was investigated. The experiments included the wear between graphite and graphite specimens, and the wear between graphite and stainless steel specimens. The worn surfaces and abrasive particles were analys…