scholarly journals Comparative studies on the room-temperature ferrielectric and ferrimagnetic Ni3TeO6-type A2FeMoO6 compounds (A = Sc, Lu)

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Guang Song ◽  
Weiyi Zhang
Keyword(s):  
Comparative Studies ◽  
Room Temperature

scholarly journals Comparative studies of hydration behaviour and density of Pyrrolidone K-30, PEG 6000 and PEG 20000

2015 ◽  
Vol 18 (1) ◽  
pp. 48-52
Author(s):  
Sakina Sultana ◽  
Md Ohidullah ◽  
AHM Saifuddin ◽  
Md Saddam Hossain
Keyword(s):  
Molecular Weight ◽  
Intrinsic Viscosity ◽  
Comparative Studies ◽  
Room Temperature ◽  
Linear Trend ◽  
Density Measurement ◽  
Pharmaceutical Journal ◽  
Polyethylene Glycols ◽  
Peg 6000 ◽  
Hydration Behaviour

A comparative study was conducted on aqueous solutions of Pyrrolidone K-30 and Polyethylene glycols of molecular weight 6000 and 20000, respectively for investigating their hydration behaviour in terms of intrinsic viscosity and density. In the study, Pyrrolidone K-30 exhibited the intrinsic viscosity of ~14 g/ml, while PEG 6000 and PEG 20000 revealed the intrinsic viscosities of 18 g/ml and 28 g/ml, respectively at a room temperature of 298 ± 1º K. Thus, among these three compounds PEG 20000 exhibited the highest intrinsic viscosity which was interesting. In density measurement this compound showed a non-linear trend of change in density as concentration was varied. Such results were opposite to that observed with the remaining two compounds.Bangladesh Pharmaceutical Journal 18(1): 48-52, 2015

scholarly journals Comparative Studies on Various Room-Temperature Vulcanizing-Type Silicone Rubbers as Ion-Selective Electrode Matrices.

1997 ◽  
Vol 13 (6) ◽  
pp. 969-974 ◽  
Author(s):  
Kyung Lae RHO ◽  
Sang Hyun HAN ◽  
Hakhyun NAM ◽  
Geun Sig CHA ◽  
Kyoung II JOUNG ◽  
...  
Keyword(s):  
Comparative Studies ◽  
Room Temperature ◽  
Ion Selective Electrode ◽  
Selective Electrode ◽  
Silicone Rubbers

Comparative Studies of Optical Spectra in PbF2 at Different Excitations

1994 ◽  
Vol 348 ◽  
Author(s):  
V. K. Egorov ◽  
N.V. Klassen ◽  
V.D. Negrii ◽  
V.M. Prokopenko ◽  
S.Z. Shmurak ◽  
...  
Keyword(s):  
Comparative Studies ◽  
Room Temperature ◽  
Spectral Characteristics ◽  
Optical Spectra ◽  
Lead Fluoride ◽  
X Ray ◽  
Luminescence Centers ◽  
Room Temperature Luminescence ◽  
Α Particles

ABSTRACTThe spectral characteristics for cubic and orthorhombic lead fluoride excited by light with energies of 5–2.5 eV, X-ray, and α-particles were studied. It is shown that the room temperature luminescence in orthorhombic lead fluoride is connected with resonance excitations of some luminescence centers. Possible models of the centers responsible for this phenomenon are proposed.

scholarly journals Simple procedure for the removal of nonspecific inhibitors of rubella virus hemagglutination

1975 ◽  
Vol 2 (6) ◽  
pp. 524-527
Author(s):  
R Allen ◽  
K Hedlund
Keyword(s):  
Silicic Acid ◽  
Rubella Virus ◽  
Comparative Studies ◽  
Hemagglutination Inhibition ◽  
Room Temperature ◽  
Dextran Sulfate ◽  
Simple Procedure ◽  
Serum Lipoproteins

The adsorption of serum lipoproteins onto an insoluble matrix of colloidal silicic acid results in the removal of nonspecific inhibitors of rubella virus hemagglutinin. The procedure can be performed in 15 min at room temperature. Comparative studies using both the dextran sulfate-CaCl2 and heparin-MnCl2 methods for removal of inhibitors demonstrated that the colloidal silicic acid procedure yielded identical hemagglutination inhibition titers. In addition, it is technically feasible to read titers below 1:8.

scholarly journals Factors Affecting Germination of Puccinia jaceae var. solstitialis Teliospores from Yellow Starthistle

2002 ◽  
Vol 92 (4) ◽  
pp. 355-360 ◽  
Author(s):  
William L. Bruckart ◽  
Farivar Eskandari
Keyword(s):  
Risk Assessment ◽  
Biological Control ◽  
Comparative Studies ◽  
Room Temperature ◽  
Rust Fungus ◽  
Yellow Starthistle ◽  
Factors Affecting ◽  
Dry Storage ◽  
Teliospore Germination

The rust fungus Puccinia jaceae var. solstitialis is a candidate for biological control of yellow starthistle (YST). Part of the risk assessment includes determining if safflower seedlings are susceptible to infection by teliospores of P. jaceae. A protocol for germination of P. jaceae teliospores is needed to verify that teliospores used in comparative studies are viable. The protocol developed from this research has two steps: first, priming teliospores on water agar at 4°C in the dark, and second, incubating them at warmer temperatures for 1 week in the presence of an exogenous stimulator. Priming longer than 4 weeks resulted in significantly greater germination than priming for shorter periods. Sources of effective stimulator included seeds and seedlings of YST or safflower. The greatest germination occurred during incubation at 18°C in the dark. Teliospore germination was reduced after incubation with a 12- or 14-h photoperiod. A low percentage (<20%) of teliospores of two isolates germinated after 44 and 96 weeks of dry storage at room temperature; samples of each isolate tested after that did not germinate. Data indicate teliospores of several isolates of P. jaceae are viable, and the protocol will be used to prepare teliospores of P. jaceae for comparative studies with P. carthami on safflower seedlings.

scholarly journals FURTHER STUDIES ON THE MOSAIC OF THE SUGARCANE VARIETY MAYAGUEZ 336

1969 ◽  
Vol 38 (1) ◽  
pp. 16-21
Author(s):  
José Adsuar
Keyword(s):  
Physical Properties ◽  
Mosaic Virus ◽  
Comparative Studies ◽  
Room Temperature ◽  
Sugarcane Mosaic Virus ◽  
Sugarcane Variety ◽  
End Point

Transmission of the mosaic virus present on the sugarcane variety M. 336 is reported. The virus was transmitted mechanically from mosaic-infected M. 336 to the varieties, B.H. 10-12, Sta. Cruz. 12/4, and C.P. 29-291. No transmissions were obtained to the varieties P.O.J. 2878 and P.R. 902, which are resistant to the sugarcane-mosaic virus. The mosaic symptoms produced by the YM-336 virus on B.H. 10-12, Sta. Cruz 12/4, Co. 281, and C.P. 29-291 were indistinguishable from the symptoms produced on these same varieties by the sugarcane-mosaic virus. Comparative studies were made of the physical properties of the M. 336 mosaic virus and the sugarcane-mosaic virus obtained from B.H. 10-12. No differences were observed in the properties of the two viruses. Both were inactivated at a temperature of around 45°C, had a dilution end point of 1:10, and did not survive for more than 24 hours at room temperature. The YM-336 virus was transmitted successfully by means of the corn aphid, A. maidis Fitch, from infected sorghum, B.H. 10-12, and Sta. Cruz 12/4 to the variety M. 336.

Dependence of Intergranular Fracture on Boundary Topography and Cohesion

1973 ◽  
Vol 31 ◽  
pp. 150-151
Author(s):  
J. E. Doherty ◽  
A. F. Giamei ◽  
B. H. Kear ◽  
C. W. Steinke
Keyword(s):  
Grain Boundary ◽  
Room Temperature ◽  
Nickel Base Superalloy ◽  
Boundary Shear ◽  
Room Temperature Ductility ◽  
Solid Solution Matrix ◽  
Nickel Base ◽  
Solution Matrix ◽  
Different Levels ◽  
Base Superalloy

Recently we have been investigating a class of nickel-base superalloys which possess substantial room temperature ductility. This improvement in ductility is directly related to improvements in grain boundary strength due to increased boundary cohesion through control of detrimental impurities and improved boundary shear strength by controlled grain boundary micros true tures.For these investigations an experimental nickel-base superalloy was doped with different levels of sulphur impurity. The micros tructure after a heat treatment of 1360°C for 2 hr, 1200°C for 16 hr consists of coherent precipitates of γ’ Ni3(Al,X) in a nickel solid solution matrix.

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