Results 311 to 320 of about 63,629 (381)
Some of the next articles are maybe not open access.
Journal of Thermal Analysis and Calorimetry, 2015
Sources of inaccuracies in thermogravimetry and the ways of minimizing them are described. The disturbances related to buoyancy forces and disturbances caused by drag forces from local gas circulations have been studied and interpreted. Procedures leading to parts-per-million precision have been tested and proven. Recommendations for handling corrosive
openaire +2 more sources
Sources of inaccuracies in thermogravimetry and the ways of minimizing them are described. The disturbances related to buoyancy forces and disturbances caused by drag forces from local gas circulations have been studied and interpreted. Procedures leading to parts-per-million precision have been tested and proven. Recommendations for handling corrosive
openaire +2 more sources
Rate Equations in Thermogravimetry
Nature, 1970MacCallum and Tanner1 have argued persuasively for modifying the rate equations used in thermogravimetry, but their conclusions are incorrect. There is no fundamental error of the kind they suggest in the usually accepted procedures and some other reason must be found for discrepancies in derived kinetic parameters.
openaire +3 more sources
Reference materials for thermogravimetry
Journal of Thermal Analysis, 1981The thermobalances available commercially have a wide range of heater-sample-temperature sensor relationships. Because of the differences, relating data from one apparatus to another has been imprecise. The International Confederation for Thermal Analysis has certified a set of magnetic reference materials for thermogravimetry.
H. G. Wiedemann +2 more
openaire +2 more sources
, 2018
To make full use of heavy oil by thermochemical conversion, the thermal behaviors of vacuum residue (VR) were investigated first by thermogravimetry–Fourier transform infrared spectrometry (TG–FTIR) and then via a laboratory-scale fluidized bed reactor ...
Yuanjun Che +5 more
semanticscholar +1 more source
To make full use of heavy oil by thermochemical conversion, the thermal behaviors of vacuum residue (VR) were investigated first by thermogravimetry–Fourier transform infrared spectrometry (TG–FTIR) and then via a laboratory-scale fluidized bed reactor ...
Yuanjun Che +5 more
semanticscholar +1 more source
Thermal standards in thermogravimetry
Talanta, 1967Comparisons of thermogravimetric data from different instruments have often led to controversy because of lack of appreciation that the values are influenced by the apparatus used. Consequently, it is suggested that various compounds be employed as thermal standards for comparing data from different sources. The paper also discusses the variables to be
openaire +3 more sources
Journal of Agricultural and Food Chemistry, 2016
Interactions between gluten proteins and dietary fiber supplements at the stage of bread dough formation are crucial in the baking industry. The dietary fiber additives are regarded as a source of polysaccharides and antioxidants, which have positive ...
A. Nawrocka +4 more
semanticscholar +1 more source
Interactions between gluten proteins and dietary fiber supplements at the stage of bread dough formation are crucial in the baking industry. The dietary fiber additives are regarded as a source of polysaccharides and antioxidants, which have positive ...
A. Nawrocka +4 more
semanticscholar +1 more source
Temperature Measurement in Thermogravimetry
Review of Scientific Instruments, 1964A method is described whereby the temperature of a sample in a thermobalance may be determined directly without the large uncertainty that usually accompanies these measurements. The procedure consists of using a unijunction transistor relaxation oscillator with a thermistor as the resistive part.
Emanuel P. Manche, Benjamin Carroll
openaire +2 more sources
Thermogravimetry of Selected Bentonites
Energy Sources, 2002In this research the application of thermal analysis techniques (TG-DTA) to the characterization of bentonite samples is presented. The thermal behavior of 4 bentonite samples was investigated using simultaneous thermogravimetry (TG/DTG) and differential thermal analysis (DTA) techniques. It was observed that all bentonite samples exhibit 2 weight loss
openaire +2 more sources
High resolution thermogravimetry
Journal of Thermal Analysis, 1992A new thermogravimetric instrument is introduced, Hi-ResTM TGA 2950. The Hi-ResTM TQA gives a significant improvement to TG results. The instrument control parameters are varied as a function of the sample's rate of weight change. This novel feature improves resolution and reduces analysis time.
S. R. Sauerbrunn +2 more
openaire +2 more sources
, 2015
Pursuing new proton-conducting materials has become a key issue to improve the performance of proton exchange membrane fuel cells for clean energy. As newly emerging materials, metal–organic frameworks (MOFs) have been attracting wide attention in this ...
Fan Yang +6 more
semanticscholar +1 more source
Pursuing new proton-conducting materials has become a key issue to improve the performance of proton exchange membrane fuel cells for clean energy. As newly emerging materials, metal–organic frameworks (MOFs) have been attracting wide attention in this ...
Fan Yang +6 more
semanticscholar +1 more source