Results 221 to 230 of about 24,143 (264)

Effects of various vessel materials on exothermic decomposition energy measurements

Thermochimica Acta, 2011
Abstract The United Nations Recommendations on the Transport of Dangerous Goods, 1999, has specified differential scanning calorimetry (DSC) measurements as a screening method for determining the explosive properties of chemicals. In this study, we have investigated the effects of different vessel materials on the exothermic decomposition energy ( Q
Miyako Akiyoshi, Ken Okada, Shu Usuba, Takehiro Matsunaga   +3 more
openaire   +1 more source

Thermal Response with Exothermic Effects of β2-Microglobulin Amyloid Fibrils and Fibrillation

Journal of Molecular Biology, 2009
Calorimetric measurements were carried out using a differential scanning calorimeter to characterize the thermal response of beta(2)-microglobulin amyloid fibrils, the deposition of which results in dialysis-related amyloidosis. The fibril solution showed a large decrease in heat capacity (exothermic effect) before the temperature-induced ...
Kenji, Sasahara, Hisashi, Yagi, Hironobu, Naiki, Yuji, Goto   +3 more
openaire   +2 more sources

Exothermic effect of entropy change in second-order phase transition ferroelectrics

Ferroelectrics Letters Section, 2018
Exothermic effect of entropy change by dipole orintation upon E in T-C second order phase transition ferroelectrics is modeled with statistic method.
Shao H. Qu, Ming Mei, Wan Q. Cao, Rui K. Pan, Ya J. Qi, Lei Zhang, Xun Z. Shang   +6 more
openaire   +1 more source

Low temperature exothermic effects on cooling of homoionic clays

Cold Regions Science and Technology, 2011
Abstract Results of differential scanning calorimetry (DSC) experiments on homoionic montmorillonites (Ca 2+ , Mg 2+ , Na + , K + ) and Na-kaolinite are reported. The low temperature exothermic peaks were observed on cooling down to − 90 °C after the initial peak corresponding to the breakdown of supercooling of water in macro- and mezopores. In some
openaire   +1 more source

Effects of size and dilution on dynamic properties of exothermic centers

Combustion and Flame, 1975
Abstract In a further examination of the concept of exothermic centers, we have calculated the effects of size and dilution of exothermic centers upon the dynamic properties of a combusting H2O2 mixture. The computations were carried out for a stoichiometric hydrogenoxygen mixture at an initial state of p0 = 3.24 atm and T0 = 1335 °K, with argon as
L.M. Cohen, A.K. Oppenheim
openaire   +1 more source

Effect of exothermicity on electron transfer rates in photosynthetic molecular models

Nature, 1987
To appreciate fully the significance of the high-resolution crystal structure of the reaction-centre complex from the purple bacterium Rhodopseudomonas viridis, there is increasing impetus to construct models to ascertain how the specific variables such as distance, exothermicity and solvent control the rates of electron transfer through the integral ...
Joran, A. D., Leland, B. A., Felker, P. M., Zewail, A. H., Hopfield, J. J., Dervan, P. B.   +5 more
openaire   +2 more sources

Prediction of the effectiveness factor and selectivity for highly exothermic reactions

Chemical Engineering Science, 1970
Abstract The need to produce a simple but accurate model for determining the effectiveness factors and selectivities for complex reaction schemes has led many authors to make convenient but arbitrary simplifying assumptions in the formulation of their models.
C. McGreavy, J.M. Thornton
openaire   +1 more source

Study on exothermic effect of surface modified porous aluminum

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2023
Chong Chen, Fei Xiao, Bo Liu, Shuhan Lan, Xiaodong Gou, Jinghui Hu, Taixin Liang   +6 more
openaire   +1 more source

The effect of carbonyl complexation on highly exothermic vanadium oxidation reactions

Chemical Physics, 2000
Abstract The effects of CO complexation on highly exothermic vanadium oxidation reactions is evaluated. We study the chemiluminescent (CL) reaction products formed when vanadium vapor entrained in Ar or CO is oxidized by O 3 or NO 2 . The multiple collision V + Ar + O 3 → VO * ( C 4 Σ − , 4 Φ , 2 X )+
M.J McQuaid, James L Gole
openaire   +1 more source

Exothermic effects during sintering of a mixture of nickel and aluminum powders. II

Soviet Physics Journal, 1968
When a mixture of nickel and aluminum powders is sintered there is an exothermic effect which involves a rise of several hundred degrees in the temperature of the compact in a few seconds. The magnitude and nature of the exothermic effect depend on the aluminum content of the mixture, the degree of dispersion of the powders, and the initial porosity of
Yu. S. Naiborodenko, V. I. Itin, K. V. Savitskii   +2 more
openaire   +1 more source