Results 41 to 50 of about 543,986 (337)

Modeling Diffusion Interaction in the bi-Phase Systems with Using Different Types of the Effective Kinetic Coefficients [PDF]

Журнал нано- та електронної фізики, 2012
The analysis of basic and combined models for calculation of effective kinetic coefficients required to describe diffusion processes in two-phase heterogeneous environments is conducted.
L.I. Gladka, Yu.O. Lyashenko
doaj  

Study on Drying Process of Farmed Shrimp Meat in a Hot Air Convective Dryer and Variation of Some Related Parameters [PDF]

Journal of Agricultural Machinery
IntroductionDrying shrimp is one of the storage methods that, while increasing the shelf life, leads to the production of a versatile product with various uses, from consumption as snacks to use as one of the main components of foods. Drying is preferred
M. Almaei, S. M. Nassiri, M. A. Nematollahi, D. Zare, M. Khorram   +4 more
doaj   +1 more source

A non-equilibrium thermodynamics model for combined adsorption and diffusion processes in micro- and nanopores

, 2012
A non-equilibrium thermodynamics model able to analyze the combined effect of diffusion and adsorption in porous materials is proposed. The model considers the coupled dynamics of the diffusive phase, described by a diffusion type equation, and the ...
Grzywna, Z. J., Rubi, J. M., Santamaria-Holek, I.   +2 more
core   +1 more source

Substrate concentration dependence of the diffusion-controlled steady-state rate constant [PDF]

, 2004
The Smoluchowski approach to diffusion-controlled reactions is generalized to interacting substrate particles by including the osmotic pressure and hydrodynamic interactions of the nonideal particles in the Smoluchoswki equation within a local-density ...
Allen M. P., Chaplin M., Dhont J., Hansen J.-P., J. A. McCammon, J. Dzubiella, Rice S. A., von Smoluchowski M.   +7 more
core   +1 more source

Experimental study on gas diffusion characteristics of vibrating granular coal

Meikuang Anquan, 2022
In order to explore the influence of mechanical vibration on the gas diffusion characteristics of granular coal, the self-developed vibration-gas adsorption-desorption experimental platform was used to conduct the gas desorption-diffusion experiments of ...
CHEN Xuexi, JIN Feiyang, SHEN Maoliang, GAO Zeshuai, ZHANG Hu   +4 more
doaj   +1 more source

Self-diffusion and Cooperative Diffusion in Semidilute Polymer Solutions as measured by Fluorescence Correlation Spectroscopy

, 2009
We present a comprehensive investigation of polymer diffusion in the semidilute regime by fluorescence correlation spectroscopy (FCS) and dynamic light scattering (DLS). Using single-labeled polystyrene chains, FCS leads to the self-diffusion coefficient
Ballauff, Matthias, Enderlein, Joerg, Harnau, Ludger, Hoffmann, Sebastian T., Koberling, Felix, Krausch, Georg, Zettl, Ute   +6 more
core   +1 more source

An experimental determination of the critical diffusion coefficient and critical relative humidity (RH) of drying air when optimizing the drying of three hardwood species (birch, aspen, and black alder)

Metsanduslikud Uurimused
There are no systematic approaches available in current specialist literature when it comes to the optimization of the process of drying out hardwood species of wood, such as birch, aspen, or black alder, all of which find industrial uses in Estonia.
Tamme Hannes, Kask Regino, Muiste Peeter, Tamme Valdek   +3 more
doaj   +1 more source

Estimation of Effective Diffusion Coefficient of O2 in Ash Layer in Underground Coal Gasification by Thermogravimetric Apparatus

Energies, 2018
Underground coal gasification (UCG) proceeds generally in the presence of an ash layer on coal (or char) surface. The ash layer increases the mass transfer resistance of O2 to the gasification surface, which may become the limiting step of whole process.
Xi Lin, Qingya Liu, Zhenyu Liu
doaj   +1 more source

Elucidating prognostic significance of purine metabolism in colorectal cancer through integrating data from transcriptomic, immunohistochemical, and single‐cell RNA sequencing analysis

Molecular Oncology, EarlyView.
Low expression of five purine metabolism‐related genes (ADSL, APRT, ADCY3, NME3, NME6) was correlated with poor survival in colorectal cancer. Immunohistochemistry analysis showed that low NME3 (early stage) and low ADSL/NME6 (late stage) levels were associated with high risk.
Sungyeon Kim, Myunghee Kang, Soyeon Jeong, Jisup Kim, Kyoung Oh Kim, Won‐Suk Lee, Jeong‐Heum Baek, Jung Ho Kim, Seungyoon Nam   +8 more
wiley   +1 more source

Effect of gas pressure and particle size on dynamic diffusion-adsorption characteristics of CO2 in coal

矿业科学学报
This study investigates the influence mechanism of particle size and gas pressure on the dynamic diffusion law of CO2 in coal.We used a self-developed high pressure adsorption and desorption experimental system for coal seam to analyze the dynamic ...
ZHANG Zunguo, LI Dandan, CHEN Yi, TANG Chao   +3 more
doaj   +1 more source