Results 21 to 30 of about 125,223 (284)

Modeling kinetics of convective drying of Curcuma longa L. [PDF]

Revista Brasileira de Engenharia Agrícola e Ambiental, 2021
This study aimed to determine drying curves of land saffron (Curcuma longa L.) rhizomes at different temperatures and ventilation conditions to adjust non-linear regression models, and to calculate effective diffusion coefficients and activation energies.
Maria S. Lima, Samuel V. Ferreira, Lígia C. de M. Silva, Daniel E. C. Oliveira, Paulo V. T. Leão, Marco A. P. Silva   +5 more
doaj   +1 more source

Characterization of Effective Diffusion within Viscoelastic Fluids with Elastic Instabilities

Fluids, 2022
We considered effective diffusion, characterized by magnitudes of effective diffusion coefficients, in order to quantify mass transport due to the onset and development of elastic instabilities.
Valerie Hietsch, Phil Ligrani, Mengying Su   +2 more
doaj   +1 more source

Scale Dependency of the Effective Matrix Diffusion Coefficient [PDF]

Vadose Zone Journal, 2004
It has been recognized that matrix diffusion is an important process for retarding solute transport in fractured rock. Based on analyses of tracer transport data from a number of field tests, we demonstrate for the first time that the effective matrix‐diffusion coefficient may be scale dependent and generally increases with test scale.
Liu, H.H., Bodvarsson, G.S., Zhang, G.
openaire   +2 more sources

Effects of diffusive property heterogeneity on effective matrix diffusion coefficient for fractured rock [PDF]

Water Resources Research, 2006
Heterogeneities of diffusion properties are likely to influence the effective matrix diffusion coefficient determined from tracer breakthrough curves. The objectives of this study are (1) to examine if it is appropriate to use a single, effective matrix diffusion coefficient to predict breakthrough curves in a fractured formation, (2) to examine if a ...
Zhang, Yingqi, Liu, Hui-hai, Zhou, Quanlin, Finsterle, Stefan   +3 more
openaire   +2 more sources

Kinetics investigation of thin layer plums drying simultaneously pretreated with ultrasound and osmotic dehydration [PDF]

Pizhūhish va Nuāvarī dar ̒Ulūm va Sanāyi̒-i Ghaz̠āyī, 2015
Ultrasound is one of the emerging technologies that its application in drying foodstuffs aimed at reducing the time needed to process and improve the quality characteristics of dried product is growing day by day.
Rasoul Ghorban, Jalal Dehghannya, Seiied-Sadegh Seiiedlou-Heris, Babak Ghanbarzadeh   +3 more
doaj   +1 more source

Diffusion Characteristics of Nickel and Zinc in Stabilized/Solidified Soil by Novel Waste Residue-based Binder

Taiyuan Ligong Daxue xuebao, 2022
In this paper the effect of BOFS-CCR-PG(BCP) binder was evaluated on the diffusion migration parameters of heavy metal after S/S in industrial contaminated site soil.
Qing ZHANG, Xiaoqiang DONG, Yasong FENG, Yingzhen LI, Yanjun DU   +4 more
doaj   +1 more source

Heavy quark momentum diffusion coefficient during hydrodynamization via effective kinetic theory [PDF]

EPJ Web of Conferences
In these proceedings, we compute the heavy quark momentum diffusion coefficient using QCD effective kinetic theory for a plasma going through the bottom-up thermalization scenario until approximate hydrodynamization.
Boguslavski Kirill, Kurkela Aleksi, Lappi Tuomas, Lindenbauer Florian, Peuron Jarkko   +4 more
doaj   +1 more source

Effective difference methods for solving the variable coefficient fourth-order fractional sub-diffusion equations

Networks and Heterogeneous Media, 2022
This paper is concerned with the numerical approximations for the variable coefficient fourth-order fractional sub-diffusion equations subject to the second Dirichlet boundary conditions.
Zhe Pu, Maohua Ran, Hong Luo
doaj   +1 more source

Hemostasis radiotherapy for gastric cancer: Usefulness of the gastric cancer to spleen apparent diffusion coefficient ratio

Radiology Case Reports, 2022
The hemostatic effect of radiation therapy on gastric cancer with bleeding is known. However, blood tests and endoscopes are mainly used to determine the therapeutic effect.
Osamu Tanaka, MD, Tomomichi Matsushita, MD, Ryoshu Maejima, RT, Shuji Kariya, RT, Takuya Taniguchi, MP, Kousei Ono, MP, Chiyoko Makita, MD, Masayuki Matsuo, MD   +7 more
doaj   +1 more source

Direct determination of the diffusion coefficient variation of coal based on Fick's law and model establishment

Meitan kexue jishu, 2023
Gas diffusion ability directly affects gas exploitation, outburst risk, emission and content determination. In order to study the influence of stress, gas pressure and temperature on gas diffusion coefficient in coal, the gas diffusion coefficient in ...
Yujin QIN, Fenghua AN, Weiwei SU, Hongfu JIA, Xiangjun CHEN   +4 more
doaj   +1 more source