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The Mesoscopic Theory of Polymer Dynamics

An examination of the use of rotational viscometers for the quality control of non-Newtonian liquid products in factories

A frequent task undertaken by quality-control personnel in typical consumer-goods factories is the measurement of the viscosity of liquid products. The problem often faced in this task is how to strike the correct balance between the complete rheological characterisation of the non-Newtonian properties of the liquid o…

Laudatio: Professor Dr. Joachim Meissner

Rheological Characterization of Body Lotions

Abstract This study is attempted to demonstrate the application of rheological measurements in characterization of cosmetics products. As part of this study, several rheological tests were carried out on three common, commercially available body lotions to analyze their complex properties. The tests described in this…

Mechanisms of Magneto- and Electro-Rheology: Recent Progress and Unresolved Issues

An electrorheological fluid (ERF) (magnetorheological fluid - MRF) is a particulate suspension which shows a dramatic increase in flow resistance upon application of an external electric (magnetic) field. In both systems, the fundamental physical process is believed to be that the field induces polarization of each pa…

XIIIth International Congress on Rheology - Rheology 2000

Atomic resolution structures of trypsin provide insight into structural radiation damage

Radiation damage is an inherent problem in protein X-ray crystallography and the process has recently been shown to be highly specific, exhibiting features such as cleavage of disulfide bonds, decarboxylation of acidic residues, increase in atomic B factors and increase in unit-cell volume. Reported here are two tryps…

Use of XPS for the study of cerium–vanadium (electrochromic) mixed oxides

Abstract Research studies on new materials have shown that cerium–vanadium mixed oxides have potential for use as counter‐electrodes in electrochromic devices owing to the combination of the excellent stability and transparency of cerium oxides and the high ion‐storage capacity of the vanadium oxides. Among them, ceri…

Thermomechanical Properties of Polyurethane-Shape Memory Polymer Foam

The thermomechanical properties of polyurethane-shape memory polymer foam were investigated by the compressive tests. The results are summarized as follows. (1) The material contracts uniformly in the axial direction with the ratio of lateral strain to axial strain 0.4 in the early stage, but about 0.15 thereafter. (2…

Nitrogen Doping into Cu2O Thin Films Deposited by Reactive Radio-Frequency Magnetron Sputtering

The effects of nitrogen doping into Cu 2 O thin films deposited by reactive radio-frequency magnetron sputtering were studied. It was found that nitrogen is an effective p-type dopant for Cu 2 O and the hole density can be controlled from 1×10 15 cm -3 to approximately 10 17 cm -3 . The acceptor level of nitrogen was…

A Perspective on Laser Lithotripsy: The Fragmentation Processes

This paper describes in simple terms the physics of laser-calculus interactions and introduces a method with which physicians can understand or evaluate the application of any new laser technique for use in lithotripsy or other medical fields. Tissue optical properties and laser parameters govern the mechanism(s) of f…

Tracking and erosion of HTV silicone rubber and suppression mechanism of ATH

Tracking and erosion of high temperature vulcanizing (HTV)-silicone rubber (SIR) and the suppression mechanism of alumina trihydrate (ATH) filler were investigated in the present study. The tracking and erosion resistance of HTV-SIR filled with 0 to 60%wt ATH was evaluated by employing an IEC 587 inclined plane (IP) t…

Transition-Metal-Polythiophene Hybrid Materials

Electropolymerization of monomers containing both transition metals and thiophene, and the properties of the resulting materials are reviewed. Polymers with metal centers linked to the backbone via a saturated linker (Type I), closely coupled to the conjugated backbone (Type II), and directly in the backbone (Type III…

Dielectric Properties of Ba(Zr,Ti)O 3 ‐Based Ferroelectrics for Capacitor Applications

The purpose of the present investigation is to describe the influence of the processing parameters on the dielectric behavior of manganese‐doped Ba(Ti 1− x Zr x )O 3 ceramics, particularly variations in the small‐signal aging rate, temperature characteristic, and hysteresis. In this paper, the aging behavior of base‐m…

STRAP: editor for STRuctural Alignments of Proteins

Abstract Summary: STRAP is a comfortable and extensible tool for the generation and refinement of multiple alignments of protein sequences. Various sequence ordered input file formats are supported. These are the SwissProt-,GenBank-, EMBL-, DSSP- PDB-, MSF-, and plain ASCII text format. The special feature of STRAP is…

Phenomenologically derived electric field-temperature phase diagrams and piezoelectric coefficients for single crystal barium titanate under fields along different axes

The possible domain states of perovskite ferroelectrics under applied fields are reviewed and, as an illustration, a phenomenological study of barium titanate is carried out. Electric field-temperature phase diagrams, the polarization, and the lattice strain of barium titanate single crystals are calculated from the L…

Anode Micro Model of Solid Oxide Fuel Cell

This paper presents the work on the development of a micro model of a solid oxide fuel cell (SOFC) porous anode, which formed by the mixture of electronic and ionic conductors. The model establishes the complex relationship between the transport phenomena, which includes the transports of electron, ion and gas molecul…

Deformation Behavior of Nanostructured Metallic Multilayers

Metallic multilayers, composed of alternating layers of soft metals, are shown to possess ultra-high strengths when the bilayer periods are on the order of a few nanometers. In fact, the strength of materials may be within a factor of two to three of the theoretical strength limit. The dependence of strength on the bi…

Rheological and Thermodynamical Behavior of Styrene/Butadiene Rubber-Organoclay Nanocomposites

Organophilic layered silicate (montmorillonite type) was added up to 10 phr to a styrene/butadiene rubber (SBR) cured by an efficient vulcanization system. The compounds were characterized in respect to their curing, rheological and mechanical properties. In addition, attempt was made to consider some thermodynamical…

Evaluation of Nanostructured Composite Collagen–Chitosan Matrices for Tissue Engineering

The development of suitable three-dimensional matrices for the maintenance of cellular viability and differentiation is critical for applications in tissue engineering and cell biology. The structure and composition of the extracellular matrix (ECM) has been shown to modulate cell behavior with respect to shape, movem…