Now showing items 801-810 of 814
Fine SiC inclusions and grain boundary phases in pressureless sintered SiAlON
(Elsevier, 1994)
The starting powder, synthesized by carbothermal reduction, was pressureless sintered at temperatures over 1670[deg]C to produce a dense SiAlON (Si6-zAlz. OzN8-z) of z = 0[middle dot]5. The dense material was characterized ...
Vibrational studies of the disulfied group in proteins part IV. SS and CS stretch frequencies of known peptide and protein disulfide bridges
(Elsevier, 1991-10-01)
We have used our previously derived ab initio disulfide and empirical polypeptide force field to calculate SS and CS stretch frequencies of disulfide bridges in a cyclic octapeptide and six proteins of known structure. ...
The Effect of Additives on Glycine Crystal Growth Kinetics
(Elsevier, 1994-11)
The effect of [alpha]-amino acids ("tailor-made" additives) on the morphology and nucleation of glycine crystals was studied in batch experiments, and the effect of L-leucine on glycine crystal growth kinetics was investigated ...
Mechanical properties and thermal expansion behaviour in leucite containing materials
(Kluwer Academic Publishers; Chapman & Hall ; Springer Science+Business Media, 1994-01)
The effect of a change in sodium content and thermal history on a leucite composition material produced by a coprecipitation process was studied. Five materials with formulae of (K( 1− x ),Na x ) 2 O-Al 2 O 3 -4SiO 2 ( x ...
The analytic solution of near-tip stress fields for perfectly plastic pressure-sensitive material under plane stress condition
(Kluwer Academic Publishers; Springer Science+Business Media, 1992-02)
Different from dense metals, many engineering materials exhibit pressure-sensitive yielding and plastic volumetric deformation. Adopting a yield criterion that contains a linear combination of the Mises stress and the ...
Effect of fixation temperature on flow cytometric measurement of intracellular antibody content of hybridomas during batch culture
(Kluwer Academic Publishers; Science & Technology Letters ; Springer Science+Business Media, 1993-04)
In order to investigate the effect of fixation temperature on flow cytometric measurement of intracellular antibody content of hybridoma cells, cells in different growth stages during a batch culture were fixed and stored ...
Development of a model for the δ-opioid receptor pharmacophore: 3. Comparison of the cyclic tetrapeptide Tyr-c[ D -Cys-Phe- D -Pen] OH with other conformationally constrained δ-receptor selective ligands
(Wiley Subscription Services, Inc., A Wiley Company, 1996-02)
We have previously proposed a model of the δ-opioid receptor bound conformation for the cyclic tetrapeptide, Tyr-c[ D -Cys-Phe- D -Pen]OH (JOM-13) based on its conformational analysis and from conformation-affinity ...
Compound formation and melting behavior in theAB compound and rare earth oxide systems
(Elsevier, 1990-03)
Compound formation in the systems of the covalent compounds BeO, AlN, and SiC withR2O3(rare earth oxides) is described. Tentative phase diagrams of the AlNNd2O3 and AlNEu2O3 systems are presented.
Influence of additives on the γ-to-α transformation of alumina
(Kluwer Academic Publishers; Chapman & Hall ; Springer Science+Business Media, 1992-01)
Direct expression of active spinach glycolate oxidase in Escherichia coli
(Elsevier, 1992-08-17)
Spinach glycolate oxidase (GAO) was expressed in Escherichia coli using the T7 RNA polymerase promotor. The enzyme accounts for approx. 1% of the soluble protein fraction and is expressed as a soluble and active enzyme. ...