2,137 Result(s)
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Article
Studies on identification and syntheses of insect pheromones XXII
(E,Z)-3,13-Octadecadien-1-ol (la) was identified as the sex pheromone from the poplar twig clearwing moth,Paranthrene tabaniformis, females by gas chromatography-mass spectrometry analysis, synthesis, and laborat...
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Article
Mass yield in high-energy proton-uranium collisions from a complete, microcanonical statistical decay
The mass-yield of fragments produced in the statistical decay of238U* is compared to the yield from high energy p-U collisions. The distributions of the initial excitation energy are calculated using a Glauber ap...
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Article
Solutons of a nonisospectral and variable coefficient Korteweg-de Vries equation
A new type of KdV equation with a nonisospectral Lax pair as well as variable coefficients is introduced. Its Lax pair is shown to be invariant under the Crum transformation. This leads to a Bäcklund transform...
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Mössbauer study of amorphous Fe40Ni40PxB20−x
The hyperfine field distributions of amorphous Fe40Ni40PxB20−x (x=10, 12, 14, 17) samples before and after different heat treatments have been determined by means of Mössbauer spectroscopy. All of these P(H) curv...
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Article
Mössbauer study of the perovskite series Sr(Fe1−xTix)Oy
57Fe Mőssbauer effect in the perovskite series Sr(Fe1−xTix)Oy (0.0≤x≤0.99; y≤3) at RT and 78K has been analyzed. The influences of the Ti composition on the coexitence of Fe4+ and Fe3+, the ratio of Fe4+ to the ...
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Article
Hyperfine field distribution in electrodeposited iron-nickel alloys
The distribution of hyperfine fields in f.c.c. electrodeposited iron-nickel alloys with composition ranging from 10 to 27 at% Fe has been studied from the observed Mössbauer spectra using a method of analysis ...
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Mössbauer studies on ancient chinese pottery of Yangshao Culture Period
Eleven pieces of ancient Chinese pottery (4770 B.C. – 2960 B.C.) of Yangshao Culture Period collected from the **'an area have been studied by means of Mössbauer spectroscopy. The samples were refired up to 11...
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Article
Fe-57 Mössbauer effect studies of some ancient Chinese pottery from xudun
18 Sherds (4500 B.C.–4000 B.C.) unearthed from different archaeological layers at the same place were studied by Mössbauer spectroscopy. The original firing atmosphere can be deduced from the ratio of the Fe2+ to...
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Article
Mössbauer study of magnetic anisotropy and structural relaxation in amorphous Fe40Ni40P x B20−x alloys
The amorphous Fe40Ni40P x B20−x (x=0, 10, 12, 14, 17) alloys before and after annealing have been studied by means of Mössbauer spectroscopy, etc. Heat treatment of various samp...
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Article
Investigation of conductivity in the Sr(Fe1−xTix)Oy system by iron-57 Mössbauer spectroscopy
On the basis of our previous work electrical conductivity in the Sr(Fe1−xTix)Oy system (0.0≤x≤0.9,y≤3) has been further studied by means of Mössbauer spectroscopy. When 0.0≤x≤0.6, the concentration of Fe3+ (II) d...
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Article
Study of Pb(Fe0.5Nb0.5) O3−Ni0.36Zn0.64Fe1.88O4−ε Mixed ceramics with the Mössbauer spectroscopy
A kind of ferroelectrics-ferromagnet mixed ceramics material which ∈≈μ=75 to 80 has been prepared successfully. The original ferroelectrics and ferromagnet materials and the mixed ceramics material have been s...
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Article
Stress protein synthesis by crayfish CNS tissue in vitro
Some crustacean axons remain functional for months after injury. This unusual property may require stress proteins synthesized by those neurons or provided to them by glial cells. To begin to explore this hypo...
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Article
Linoleoyl-enriched triacylglycerol species increase in maternal liver during late pregnancy in the rat
In view of the previously reported changes in the fatty acid composition of maternal liver triacylglycerols in late pregnancy, changes in the composition of maternal liver triacylglycerol species were assessed...
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Article
Early Postnatal Development in the Rat is Characterized by Accumulation of Highly Unsaturated Triacylglycerols
ABSTRACT: Our objective was to determine the quantitative changes of individual triacylglyercol (TG) species in liver and carcass during early postnatal growth. Pregnant rats were killed at d 21 of pregnancy, ...
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Article
Mössbauer studies on the hydrogenation and dehydrogenation of Nd16Fe76B8 magnet
Hydrogenation and dehydrogenation of the Nd16Fe76B8 magnet are studied by X-ray diffraction analysis (XRD) and Mössbauer spectroscopy. The results of the samples treated under different hydrogen gas pressures at ...
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Article
119Sn and121Sb Mössbauer studies of BaSn1−x Sb x O3 Perovskite system
The relations between the electrical characteristics of BaSn1−x Sb x O3 perovskite system and the contents of BaO, Sb2O3 and silicate sintering agent were...
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Article
Mössbauer studies on the structural relaxation and crystalline transformation of amorphous Fe47Ni32V1.5Si6B13.5
The transformation from the as-quenched amorphous to the crystalline states ofFe 47 Ni 32 V
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Article
Stress protein synthesis and accumulation after traumatic injury of crayfish CNS
By several days after a crush injury of crayfish CNS, the wound site heals. Changes in protein synthesis and accumulation occur at the lesion site and nearby. During the first few hours, synthesis of 35, 70, 9...
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Article
Pseudoelastic behavior in Y1−xPrxBa2Cu3Oy compounds
Tensile tests show that ferroelastic loops always occur at 100–150 K, 200–250 K and room temperature in the Y1−xPrxBa2Cu3Oy samples withx=0 and 0.1 for whichT c is 92 K and 82.5 K respectively, and the shape memo...
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Article
From CH4 reforming with CO2 to pyrolysis over a platinum catalyst
At temperatures up to 1100°C, CH4 and CO2 react over a Pt wire to give mainly the reforming product CO, even at a CH4/CO2 ratio of 4.3. But if coke is present on the wire, the dominant reaction becomes the pyroly...