Results 81 to 90 of about 1,920,414 (308)

Degradation kinetics of polyimide film

, 2011
Through the use of thermogravimetry (TG), this work explores the thermal degradation mechanism and kinetics of Kapton (polyimide) film. Isoconversional kinetic methods, which provide activation energy as a function of degradation, present insight into ...
Sungho Yoon, Peter R. Hondred, Nicola Bowler, Elena Moukhina, Michael R. Kessler   +4 more
core   +1 more source

Degradation Kinetics of Branched-Chain Amino Acids in Subcritical Water [PDF]

, 2010
The degradation of branched-chain amino acids (valine, leucine, and isoleucine) in subcritical water was measured from 290 °C to 330 °C. The degradation process at any temperature obeyed first-order kinetics.
KOBAYASHI, Takashi, ADACHI, Shuji, TAKASE, Koji   +2 more
core   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

A kinetics study of the methomyl electrochemical degradation in the chloride containing solutions

, 2014
The kinetics of the electrochemical degradation of methomyl has been study by the means of electrochemical techniques, UV-vis spectrophotometry, HPLC, and HPLC-ESI-MS in the sodium chloride containing solution.
Grgur, Branimir, Mijin, Dušan
core   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Estimating the Biodegradation Kinetics by Mixed Culture Degrading Pyrene (Pyr)

Arid Zone Journal of Engineering, Technology and Environment, 2017
Biodegradation and kinetics of Pyrene (Pyr) degradation by a mixed culture previously isolated from hydrocarbon-polluted soil were conducted. Preliminary investigation on environmental factors affecting the degradation of Pyr such as temperature, pH and ...
B. S. U. Ibn Abubakar, N. Abdullah, A. Idriss, M. P. Zakaria, M. Y. Shokur   +4 more
doaj  

A Comparative Study of Encapsulation of β-Carotene via Spray-Drying and Freeze-Drying Techniques Using Pullulan and Whey Protein Isolate as Wall Material

Foods
The encapsulation of β-carotene was investigated using pullulan and whey protein isolate (WPI) as a composite matrix at a weight ratio of 20:80, employing both spray-drying and freeze-drying techniques.
Christina Drosou, Magdalini Krokida
doaj   +1 more source

Genetic and Biochemical Characterization of 2-Chloro-5-Nitrophenol Degradation in a Newly Isolated Bacterium, Cupriavidus sp. Strain CNP-8

Frontiers in Microbiology, 2017
Compound 2-chloro-5-nitrophenol (2C5NP) is a typical chlorinated nitroaromatic pollutant. To date, the bacteria with the ability to degrade 2C5NP are rare, and the molecular mechanism of 2C5NP degradation remains unknown.
Jun Min, Weiwei Chen, Jinpei Wang, Xiaoke Hu   +3 more
doaj   +1 more source

Cell growth of strain ZS-02 and degradation kinetics of bifenthrin during biodegradation studies.

, 2012
○, degradation kinetics in MSM supplemented with bifenthrin as the sole carbon source; □, degradation kinetics in MSM supplemented with 1% glucose as an additional source of carbon; □, non-inoculated control (degradation); •, cell growth in MSM ...
Jianjun Luo (160162), Yanbo Zhang (184664), Meiying Hu (114346), Shaohua Chen (114324), Peng Geng (184661)   +4 more
core   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source