INVESTIGATIONS ON THE SEASONAL SUCCESSION OF WADDEN SEA INHABITING DIATOMS AT DANGAST (NORTH SEA, GERMAN BIGHT) OVER A ONE YEAR PERIOD
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Experimental study on the effect of cullet and batch water content on the melting behavior of flint and amber container glass batches
The melting behavior of two commereial flint and amber glass batches with varied cullet content (0, 40, 65 % and 0, 40, 76 %, respectively) and batch water additions (0 to 5 %) was investigated. The cullet was a blend of up to five industrial types and grades, including ground cullet. Local temperature, electrical con…
Spiral growth of grossular under hydrothermal conditions
Grossular (Grs 99 Adr 01 ) crystals were synthesized in hydrothermal experiments by the reaction wollastonite + calcite + anorthite = grossular + CO 2 (400 MPa; 695-750 °C; X CO₂ = 0.1; solid:fluid = 2:1) using natural minerals as starting materials. Growth spirals are visible due to silica decorations. The crystals a…
ANISOTROPY OPTIMIZATION OF GIANT MAGNETOIMPEDANCE SENSORS
As-cast melt extracted CoFeSiBNb wires 37.5 µm in average diameter prepared by MXT Inc. of Montréal have a predominantly helical anisotropy due to residual tensile and torsional stresses quenched in during preparation. When a supplementary tensile stress is applied along the wire, its easy axis of magnetization rotate…
The Effect of Carbon Nanotubes on the Thermal Decomposition of CL-20
The effect of carbon nanotubes on the thermal decomposition of CL-20 is studied by means of DSD and TG. The results show that the addition of carbon nanotubes makes the onset temperature and peak temperature of DSC curve shift downwards, the value of activation energy thermal decomposition of CL-20 decrease from 184.3…
REACTION OF VEGETABLE TANNIN-ALDEHYDE-COLLAGEN ——A FURTHER UNDERSTANDING ON VEGETABLE TANNIN-ALDEHYDE COMBINATION TANNAGE
Using mimosa tannin as vegetable tanning agent and oxazolidine as aldehydic tanning agent,the effects of hydrogen bond,hydrophobic bond and side amino group of collagen on vegetable tanning,aldehyde tanning and vegetable-aldehyde combination tanning were investigated.Results indicated that aldehyde predominantly react…
Experimental study on the influence of ultrasonic vibration on heat transfer and pressure drop in heat exchanger tubes
The heat transfer performance and pressure drop of 3 different tubes under different ultrasonic power are experimentally investigated using a tube-shell heat exchanger model and the designed ultrasonic vibration device. The results show that the heat transfer coefficient increases obviously while the pressure drop dec…
CONSTANT PRESSURE MD SIMULATION METHOD
By introducing an anisotropic factor in the cell dynamics of constant pressure molecular dynamics simulations, we dramatically reduce the artifacts related to cell shapes and overcome the difficulties of simulating anisotropic molecules under hydrostatic pressure. The method is especially effective for anisotropic liq…
APPLICATION OF MIXTURES OF RESIN FINISHING TO ACHIEVE SOME PHYSICAL PROPERTIES ON INTERLINING COTTON FABRICS: I-EFFECT OF STIFFENINGAND CROSS-LINKING AGENTS
ening, stiffening and water repellent agents have been employed. In this work, a mixture of dimethylol dihydroxy ethylene urea (DMDHEU), polyvinyl acetate (PVAc) and some other resins were examined in special finishing of cotton for producing interlining cotton fabrics properties. Majority of cross-linking agents used…
A Comparison of Korean Cellulose Insulation with Cellulose Insulation Manufactured in the United States of America
Thermal resistivity data are reported for loose-fill cellulose manufactured in Korea and the United States over the temperature range 40 to 100 F. A representative thickness of 1.1 in. for thermal test specimens was determined for cellulose insulation in the density range that was studied. Measurements for insulations…
Linear antiferromagnetism in Ba2CoS3Electronic supplementary information (ESI) available: crystallographic data. See http://www.rsc.org/suppdata/cc/b4/b400084f/
Ba(2)CoS(3) is the first example of an inorganic solid containing one-dimensional corner-sharing [Co(2+)-anion] chains, which leads to one-dimensional cooperative antiferromagnetism.
Glycolysis of PET Waste and the Use of Glycolysis Products in the Synthesis of Degradable Co-polyesters
We present the results of investigations into the utilisation of polymeric waste arising in the manufacture of polyester fibres. Polyethylene terephthalate waste of various molecu lar weights (Mv ≅ 13500 and 18000) was glycolysed under different conditions including varying the PET/EG proportion, temperature and time…
Dielectric Properties of (Sr1 - xPbx)TiO3, SPT Ceramics (= 0.05, 0.1, and 0.15) and Phase Transition of SPT (x = 0.05, 0.1, 0.15, 0.2, 0.25 and 0.3)
Dielectric properties of (Sr1 - xPbx)TiO3-SPT (x = 0.05, 0.10 and 0.15) and phase transitions of SPT (x = 0.05, 0.10, 0.15, 0.20, 0.25 and 0.30) ceramic samples are investigated. At 10 kHz relative permittivity of SPT(x = 0.05) has one maximum, SPT(x = 0.10) and SPT(x = 0.15) show the main relative permittivity peaks…
Study on Splitting of Bamboo Fibers Due to Freezing and Tensile Strength of FRTP Using Bamboo Fibers
The purpose of this study is to examine a new method to obtain fine bamboo fibers (fiber bundles), which are used to reinforce thermoplastics instead of glass fibers. The tensile strength of FRTP was also examined using polypropylene as the matrix and bamboo fibers as the reinforcement. In this study, two types of bam…
Preparation and catalytic oxidation properties of inorganic polymer encapsulated metal complexes
Abstract An inorganic polymer supporter, such as molecular sieve MCM‐41, was used as a support for encapsulating metal complex catalysts. The metal complex was prepared with L ‐glutamic acid and Co(OAc) 2 · 4H 2 O. Their catalytic activity in oxidation of cyclohexene with H 2 O 2 was studied. The major products of thi…
Recent Progress of Vitamin B6 Biosynthesis
This review is the current summary of vitamin B6 (B6) biosynthesis in Escherichia coli and other microorganisms. The de novo biosynthesis of B6 has been studied extensively for last three decades. However, the de novo biosynthesis of B6 still remains unclear in spite of its simple structure. For the first two decades,…
Morphological study of the marine planktonic diatom Chaetoceros castracanei Karsten (Bacillariophyceae) from Antarctic waters, with a discussion on its possible taxonomic relationships
Phytoplankton samples were collected along the north coast of the Antarctic peninsula, the Weddell Sea and the Gerlache Strait, in different seasons in 1985, 1986, 1999, and 2000–2002. Chaetoceros castracanei Karsten, a fairly rare species was present in the samples; its morphology, taxonomy and distribution have not…
Grafting copolymerization of 2-methacryloyloxyethyl phosphorylcholine (MPC) onto pre-irradiated cellulose films
Grafting of 2-methacryloyloxyethyl phosphorylcholine (MPC) and poly(ethylene glycol mathacrylate) (PEGMA) onto cellulose films was performed using the pre-irradiation grafting method. The effects of monomer concentration, solvent system and co-solvent composition, and reaction time on the degree of grafting were deter…
DISTRIBUTION OF TACTILE SENSITIVITY AND ELASTICITY IN JAPANESE FOOT SOLE
Tactile sensitivity of the foot was investigated using the Semmes-Weinstein monofilament method to quantify the pressure sensory threshold. Gender differences and variations in sensitivity at various sites on the foot (inter-locational sensitivity differences) were analyzed using a nonparametric test. Skin elasticity…
Simulation on the Hysteresis of Ferroelectric Thin Films
The ferroelectric hysteresis in thin films is studied using a computer simulation model based on Time Dependent Ginzburg-Landau equations. The model for the polarization of ferroelectric thin film is set up with the analysis of the crystal structure and the principle of spontaneous polarization. For stress-free ferroe…