نتایج جستجو برای: pore network modeling

تعداد نتایج: 1060116  

Journal: :Structure 2013
Parthasarathy Sampathkumar Seung Joong Kim Paula Upla William J Rice Jeremy Phillips Benjamin L Timney Ursula Pieper Jeffrey B Bonanno Javier Fernandez-Martinez Zhanna Hakhverdyan Natalia E Ketaren Tsutomu Matsui Thomas M Weiss David L Stokes J Michael Sauder Stephen K Burley Andrej Sali Michael P Rout Steven C Almo

The nuclear pore complex, composed of proteins termed nucleoporins (Nups), is responsible for nucleocytoplasmic transport in eukaryotes. Nuclear pore complexes (NPCs) form an annular structure composed of the nuclear ring, cytoplasmic ring, a membrane ring, and two inner rings. Nup192 is a major component of the NPC's inner ring. We report the crystal structure of Saccharomyces cerevisiae Nup19...

2005
S. Békri

The objective of the present work is to demonstrate the effect of pore structure on fluid transport and electrical properties of homogeneous or dual-porosity pore structures for drainage conditions. To this end, a pore network numerical simulator is used that calculates multiphase flow and electrical properties taking into account the pore structure specificities. The characteristics of the 3-D...

2016
Rui Song Jianjun Liu Mengmeng Cui

Due to the intricate structure of porous rocks, relationships between porosity or saturation and petrophysical transport properties classically used for reservoir evaluation and recovery strategies are either very complex or nonexistent. Thus, the pore network model extracted from the natural porous media is emphasized as a breakthrough to predict the fluid transport properties in the complex m...

2000
H.-J. Vogel K. Roth

Pore-network models are attractive to relate pore geometry and transport processes in soil. In this contribution a `morphological path' is presented to generate a network model based on quantitative morphological investigations of the 3D pore geometry in order to predict soil hydraulic properties. The 3D-geometry of pores larger than 0.04 mm in diameter is obtained using serial sections through...

Journal: :Fuel 2021

The thin water film stabilized by disjoining pressure is non-negligible in tight formations which results significant difference multiphase flow behavior compared with that conventional formations. In this work, a pore network model proposed to simulate two phase highlight the contribution of on flow. newly developed includes influence fluid configuration, capillary entry pressure, conductance ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
najeh alali mahmoud reza pishvaie vahid taghikhani

production of highly viscous tar sand bitumen using steam assisted gravity drainage (sagd) with a pair of horizontal wells has advantages over conventional steam flooding. this paper explores the use of artificial neural networks (anns) as an alternative to the traditional sagd simulation approach. feed forward, multi-layered neural network meta-models are trained through the back-error-propaga...

2007
T D Scheibe A M Tartakovsky D M Tartakovsky G D Redden

Many subsurface flow and transport problems of importance today involve coupled non-linear flow, transport, and reaction in media exhibiting complex heterogeneity. In particular, problems involving biological mediation of reactions fall into this class of problems. Recent experimental research has revealed important details about the physical, chemical, and biological mechanisms involved in the...

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