搜索结果: 1-15 共查到“工学 kinetics”相关记录76条 . 查询时间(0.125 秒)
Crystallization kinetics and morphology of small concentrations of cellulose nanofibrils (CNFs) and cellulose nanocrystals (CNCs) melt-compounded into poly(lactic acid) (PLA) with plasticizer
Poly(lactic acid) Nucleation Nanocellulose Avrami kinetics Crystallization
2024/2/27
In the present study, very small concentrations of CNCs and CNFs were melt-compounded into PLA using a solvent-free process where poly(ethylene glycol) (PEG) was used to disperse the nanoparticles in ...
Kinetics of hydrogen peroxide generated from live and dead ram spermatozoa and the effects of catalase and oxidase substrates addition
reactive oxygen species ram antioxidant
2016/2/23
The generation of hydrogen peroxide (H2O2) by ram spermatozoa (spz) was measured using a flurometric assay with 10-acetyl-3,7-dihydroxyphenoxazine agent as a probe for H2O2 detection. The kinetics of ...
Microwave drying of green bean slices: drying kinetics and physical quality
Phaseolus vulgaris effective diffusivity drying mathematical modelling rehydration colour
2015/7/28
Several microwave power settings were applied to green beans in order to determine the effect on the drying kinetics along with the rehydration ratio and colour values. In the experiments, several mic...
Modelling the Kinetics of Water Loss during Deep-Fat Frying of Potato Particulates
Arrhenius relationship activation energy
2014/11/28
We developed an empirical model to describe the water loss during deep-fat frying. Raw potato particulates were
sliced to form cylinders and subjected to the deep-fat frying at isothermal temperatur...
Dynamics and Kinetics of Model Biological Systems
Biological charged polymer pores gel dynamic properties
2014/11/21
In this work we study three systems of biological interest: the translocation of a heterogeneously charged polymer through an infinitely thin pore, the wrapped of a rigid particle by a soft vesicle an...
Determining Detailed Reaction Kinetics for Nitrogen-and Oxygen-Containing Fuels
biofuels combustion kinetics thermochemistry
2014/11/10
With the emergence of new biorenewable transportation fuels, the role of heteroatoms in combustion has increased tremendously. While petroleum-based fuels are primarily hydrocarbons, many biorenewable...
Kinetics of Aluminization and Homogenization in Wrought H-X750 Nickel-Base Superalloy
Aluminization and Homogenization Wrought H-X750 Nickel-Base Superalloy
2014/10/23
In sub-millimeter sheets of wrought H-X750 Nickel-base superalloy, aluminum-rich coatings are bonded to matrix with a vapor phase aluminization process. If an appropriate amount of aluminum is bonded ...
Growth Kinetics of Wildlife E. coli Isolates in Soil and Water
Bacteria Fecal Contamination TMDL Water Quality
2013/3/11
Bacteria are the major cause of surface water contamination in the United States. US Environmental Protection Agency (USEPA) uses the Total Maximum Daily Load (TMDL) process to regulate the E. coli lo...
Kinetics of Oxidation of L-Leucine by Mono- and Bimetallic Gold and Silver Nanoparticles in Hydrogen Peroxide Solution（图）
gold nanoparticle silver nanoparticle gold/silver bimetallic nanoparticle oxidation of α-amino acid leucine hydrogen peroxide kinetic study
2013/10/5
The catalytic activity of surfactant stabilized mono- and bimetallic Au and Ag nanoparticles for the oxidation of an amino acid, L-leucine, was studied using hydrogen peroxide as the oxidant. The Au a...
Antioxidant activity coefficient, mechanism, and kinetics of different derivatives of flavones and flavanones towards superoxide radical
antioxidant activity coefficient flavonoids binding constant homogeneous kinetics cyclic voltammetry
2014/2/25
A systematic investigation of the electrochemically generated superoxide radical (O2●–) has been conducted in the presence of some flavonoids. Cyclic voltammetry was used to generate O2●– by reducing ...
Role of Chemical Kinetics in the Heterogeneous Catalysis Studies（图）
kinetics heterogeneous catalytic reaction mass action surface action reaction rate reaction mechanism
2013/10/12
The paper presents shortly some of the important elements of the theory and of the practical applications of the kinetics of heterogeneous catalytic reactions. Discussed are some of the most important...
地黄真空红外辐射干燥过程中梓醇降解动力学研究（Degradation Kinetics of Catalpol in Rehmanniae during Vacuum Infrared Radiation Drying）
地黄 梓醇 真空红外辐射干燥
2010/12/29
以地黄为真空红外辐射干燥试验的原料，在确定地黄中梓醇提取方法为超声+冷浸工艺的基础上，进行了干燥过程中梓醇降解动力学研究。结果表明：地黄真空红外辐射干燥中梓醇降解动力学不符合零级和一级反应动力学。通过对一级反应动力学方程引入一个与辐射板温度有关的参数gT，并假设降解速率参数k符合Arrhenius方程，建立了地黄中有效成分梓醇在真空红外辐射干燥过程中的降解动力学模型方程，验证结果表明，该方程模拟效...
Reaction Kinetics of Carbon Dioxide with Phenyl Glycidyl Ether by TEA-CP-MS41 Catalyst
Carbon dioxide absorption Phenyl glycidyl ether Triethylamine MCM-41 catalyst
2010/9/8
CP-MS41 was synthesized by hydrolysis of tetraorthosilicate, as a silicon source, with 3-chloropropyltriethoxysilane as an organosilane using cetyltrimethylammonium bromide as a template. TEA-CP-MS41 ...
Biofiltration kinetics of ethylacetate and xylene using sugarcane bagasse based biofilter
Xylene ethyl acetate sugarcane bagasse
2010/9/14
Biodegradation kinetic behaviors of ethyl acetate and xylene in a sugarcane bagasse biofilter were investigated. Microbial growth rate, biochemical reaction rate and kinetic analysis were inhibited at...
Kinetics of hydrolysis of egg white protein by pepsin
egg white protein pepsin enzymatic hydrolysis kinetics bioactive peptides
2014/2/27
Taking into account the enzyme inactivation and substrate inhibition, the bioreaction mechanism and kinetics characteristic of egg white protein (EWP) enzymatic hydrolysis by pepsin were investigated....