Physico-chemical behavior of carbon materials under high temperature and ion irradiation

2001 ◽  
Vol 180 (3-4) ◽  
pp. 227-245 ◽  
Author(s):  
T Paulmier ◽  
M Balat-Pichelin ◽  
D Le Quéau ◽  
R Berjoan ◽  
J.F Robert
Keyword(s):  
High Temperature ◽  
Carbon Materials ◽  
Ion Irradiation ◽  
Chemical Behavior ◽  
Physico Chemical

Assessment of wheat (Triticum aestivum L.) genotypes for high temperature stress tolerance using physico-chemical analysis

2020 ◽  
Vol 53 (2) ◽  
Author(s):  
Khalil Ahmed Laghari ◽  
Abdul Jabbar Pirzada ◽  
Mahboob Ali Sial ◽  
Muhammad Athar Khan ◽  
Jamal Uddin Mangi
Keyword(s):  
Triticum Aestivum ◽  
High Temperature ◽  
Chemical Analysis ◽  
Stress Tolerance ◽  
Temperature Stress ◽  
Triticum Aestivum L ◽  
High Temperature Stress ◽  
Physico Chemical

A New Method of Producing Carbon Anode by High-Temperature Mould Pressing

2011 ◽  
Vol 415-417 ◽  
pp. 611-616
Author(s):  
Yao Wu Wang ◽  
Nai Xiang Feng ◽  
Jing You
Keyword(s):  
High Temperature ◽  
Bulk Density ◽  
Electrical Resistance ◽  
Chemical Properties ◽  
New Method ◽  
Carbon Anode ◽  
Crushing Strength ◽  
Industrial Carbon ◽  
Physico Chemical ◽  
Carbon Anodes

Laboratory-scale carbon anodes were produced by a new method of high-temperature mould pressing, and their physico-chemical properties were studied in laboratory. The results showed that the bulk density of carbon anodes produced by high-temperature mould pressing are 1.61-1.63g/cm3, they are higher than industrial carbon anode by 0.06 g/cm3, but the specific electrical resistance is higher and crushing strength is lower.

NANOMATERIALS AS OPTICAL LIMITERS

2000 ◽  
Vol 09 (04) ◽  
pp. 481-503 ◽  
Author(s):  
YA-PING SUN ◽  
JASON E. RIGGS ◽  
KEVIN B. HENBEST ◽  
ROBERT B. MARTIN
Keyword(s):  
Carbon Nanotubes ◽  
Nonlinear Absorption ◽  
Carbon Nanoparticles ◽  
Carbon Materials ◽  
Optical Limiting ◽  
Experimental Results ◽  
Nonlinear Scattering ◽  
Optical Limiters ◽  
Physico Chemical ◽  
Chemical States

Optical limiters based on several different classes of nanomaterials are reviewed. The systems under consideration include metal and semiconductor nanoparticles and nanoscale carbon materials. For the latter, the optical limiting properties of carbon nanoparticles, fullerenes, and suspended and solubilized carbon nanotubes are summarized and compared. Mechanistic implications of the available experimental results are discussed in terms of the comparison between nonlinear scattering versus nonlinear absorption as the dominating optical limiting mechanism for different nanomaterials and for different physico-chemical states of a nanomaterial.

scholarly journals Carbon Nanosorbent for Purification Different Biomolecules

2011 ◽  
Vol 14 (1) ◽  
pp. 41
Author(s):  
Z.A. Mansurov ◽  
A.R. Kerimkulova ◽  
S.A. Ibragimova ◽  
E.Y. Gukenheimer
Keyword(s):  
Carbon Nanostructures ◽  
Large Scale ◽  
Carbon Materials ◽  
Raw Materials ◽  
Carbon Sorbent ◽  
Nanostructured Carbon ◽  
Lipid Complex ◽  
Carbon Sorbents ◽  
Physico Chemical ◽  
Chemical Studies

The article presents the results of physico-chemical studies on the development of nanostructured carbon materials from domestic raw materials. Were obtained and tested micro-mesoporous carbon sorbents for molecular-sieve chromatography of markers and investigated the applicability of carbon sorbents for the separation of protein-lipid complex, and plant bio-stimulator. Carbon sorbents have well-developed porous structure but their disadvantage is the weak mechanical<br />strength. Recently it was shown that some carbon nanostructures have enormous strength. Thus arose the need to give the nano structured elements to carbon sorbent. Creating carbon sorbents containing nanocarbon structure was the aim of our study, as these by sorbents will be very useful for large-scale purification of biomolecules.

scholarly journals Quality Characteristics and Standards for Sunflower Oil from Arad Agricultural Area

2011 ◽  
Vol 68 (2) ◽  
Author(s):  
Claudia MUREŞAN ◽  
Anca Mihaela DICU ◽  
Virgil CIUTINA ◽  
Dorina CHAMBRE ◽  
Claudiu URSACHI
Keyword(s):  
Fatty Acid ◽  
High Temperature ◽  
Peroxide Value ◽  
Sunflower Oil ◽  
Quality Characteristics ◽  
Conjugated Dienes ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Specific Absorbance ◽  
Conjugated Dienes And Trienes

The purpose of this study was to determine the unsaturated fatty acid compounds of studied oils, physico-chemical parameters, and the behavior of the four oil types during oxidation and heating. This is a part of a large study effectuated on Carnia sunflower hybrids, PR64H91, PR65A22 and PR64H45 obtained through cold pressing. We followed the evolution of the UV absorption correlated with the peroxide value. The peroxide value has been presented an increased value in the first 12 heating hours, but after this period of time, it has been decreased due to the high temperature instability of the early formed hydro-peroxides. The absorbance between 220-230 nm and the specific absorbance on 232 and 270 nm (characteristic of the conjugated dienes and trienes) have increased along the experiment period. The results were compared with those from regular sunflower oil.

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