scholarly journals Alpha-Keratin: Ultrafine Structure of α-Keratin

Nature ◽  
1965 ◽  
Vol 205 (4968) ◽  
pp. 268-268 ◽  
Author(s):  
D. J. JOHNSON ◽  
P. T. SPEAKMAN
Keyword(s):  
Ultrafine Structure ◽  
Alpha Keratin

Ultrafine Structure in the λ5797 Diffuse Interstellar Absorption Band

1998 ◽  
Vol 495 (2) ◽  
pp. 941-945 ◽  
Author(s):  
T. H. Kerr ◽  
R. E. Hibbins ◽  
S. J. Fossey ◽  
J. R. Miles ◽  
P. J. Sarre
Keyword(s):  
Absorption Band ◽  
Interstellar Absorption ◽  
Ultrafine Structure

Combustion Synthesis of La0.65Sr0.35MnO3 and its Sensing Properties for NO2

2016 ◽  
Vol 680 ◽  
pp. 208-211
Author(s):  
Lian Lian Wu ◽  
Qiang Li ◽  
Dan Yu Jiang ◽  
Jin Feng Xia
Keyword(s):  
Solid Phase ◽  
High Sensitivity ◽  
Combustion Method ◽  
Fast Response ◽  
Size Analysis ◽  
Phase Method ◽  
X Ray Diffraction ◽  
Ultrafine Structure ◽  
Nox Sensor ◽  
Solid Phase Method

In this paper, La0.65Sr0.35MnO3 (LSM) oxide powder with ultrafine structure has been synthesized by self-propagating combustion method. The powders were characterized by X-ray diffraction, scanning electron microscopy and laser size analysis. Compared to the powders prepared by traditional solid-phase method, the grain size of powders prepared by self-propagating combustion method is relatively small and uniform. Starting from ultrafine LSM powders, sensing electrode (SE) for NO2 mixed-potential sensors based on yttria-stablized zirconia (YSZ) was fabricated. As-obtained NO2 sensor displays fast response and high sensitivity (25.4mV/decade). The response values of the sensor have good linear relationship with the logarithm of NO2 concentration varying from 30ppm to 500ppm.Keywords:Self-propagating combustion method; La0.65Sr0.35MnO3; NOx sensor; YSZ

Self-assembled three-dimensional hierarchical graphene hybrid hydrogels with ultrathin β-MnO2 nanobelts for high performance supercapacitors

2015 ◽  
Vol 3 (4) ◽  
pp. 1540-1548 ◽  
Author(s):  
Sheng Zhu ◽  
Hui Zhang ◽  
Ping Chen ◽  
Lin-Hui Nie ◽  
Chuan-Hao Li ◽  
...  
Keyword(s):  
Self Assembly ◽  
High Performance ◽  
Three Dimensional ◽  
The Self ◽  
Mass Loading ◽  
Hybrid Hydrogel ◽  
Precise Control ◽  
Ultrafine Structure ◽  
Hybrid Hydrogels ◽  
Self Assembled

A facile protocol for the self-assembly of the rGO/β-MnO2 hybrid hydrogel with ultrafine structure and precise control of mass-loading for high performance supercapacitors is reported.

Application of Integrated Methods to Improve the Technological Properties of Steel

2017 ◽  
Vol 736 ◽  
pp. 110-115 ◽  
Author(s):  
S.N. Fedoseev ◽  
D.V. Valuev ◽  
R.A. Mamadaliev ◽  
P.N. Sokolov
Keyword(s):  
Powder Materials ◽  
Technological Properties ◽  
New Production ◽  
Ultrafine Structure ◽  
Additional Equipment ◽  
Metallic Inclusions ◽  
Integrated Methods ◽  
Production Technologies ◽  
New Generation ◽  
The Impact

Getting a new generation of materials, advancing by its qualities world counterparts, among the most important objectives of the creation of scientific and technical groundwork in various fields of science and technology. Particular attention is paid to technological metals and their alloys; materials having the fine and ultrafine structure, single crystal, amorphous and powder materials. The preparation of such materials is possible thanks to new production technologies, modern equipment and the use of costly additives or use of technologies with application of complex measures for these materials. One way to obtain the desired technological properties is the use of complex natural materials. This method is cheaper compared to other costs, and requires no additional equipment, as well as lower costs of preparatory. For more efficient use of these components is necessary to preliminary processing, which will improve the effect of the use of steel in the modification. The type of treatment can be varied by mechanical activation powder to extract individual components. As a result of a series of studies on the impact modifiers to change the structure and properties of steel were detected changes in the structure; in particular the number of non-metallic inclusions was reduced.Heat treatment allows improving effect of modifying the structure of steel and the items received.

scholarly journals ULTRAFINE STRUCTURE OF GLYCOGEN PARTICLES SYNTHESIZED UNDER HISTOCHEMICAL CONDITIONS

1974 ◽  
Vol 22 (5) ◽  
pp. 378-380 ◽  
Author(s):  
TADAO TAKEUCHI
Keyword(s):  
Enzyme Activities ◽  
Chemical Structure ◽  
Ultrafine Structure ◽  
Glycogen Particles

The polyglucose particles histochemically synthesized by enzyme activities, phosphorylase and branching glycosyltransferase were clearly demonstrated as a macromolecular spheroidal branching body suggesting the chemical structure proposed by French (2), although the synthesized polyglucose was strikingly larger.

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