diffusion through porous membranes
Báo cáo Y học: Diffusion through channel derivatives of the Escherichia coli FhuA transport protein doc
... bilayer membranes, stable open diffusion channels for ions such as K+ and Cl–, we examined whether FhuAD5–160 D335–355 also formed open channels in the outer membrane of E coli cells To study diffusion ... mutant proteins After the incorporation of 100–1000 channels into the membranes, the KCl concentration on one side of the membranes was raised from 0.1 to 0.5 M by the addition of concentrated ... mV at a fivefold KCl gradient across the membranes Analysis of the potential using the Goldman–Hodgkin–Katz equation [29] suggested that anions also move through the channel because the ratio of...
Ngày tải lên: 31/03/2014, 08:20
Báo cáo y học: "A novel approach to modelling water transport and drug diffusion through the stratum corneum" pdf
... [14], and references therein) Our approach for modelling the diffusion of water through skin layers involves the concepts of flow through porous media as applied to groundwater flow modelling [15,16] ... molecular diffusion coefficient In the case of mass transport in porous media, an effective diffusion coefficient is defined to take into account the tortuosity and effective porosity of the porous ... to be the diffusion of molecules through the SC following a tortuous pathway around dead cells [4] Namely, the SC is composed of stacked, polyhedral corneocytes surrounded by lipid membranes...
Ngày tải lên: 13/08/2014, 16:20
prediction of shear strength and vertical movement due to moisture diffusion through expansive soils
... Ann Arbor, MI 48106-1346 PREDICTION OF SHEAR STRENGTH AND VERTICAL MOVEMENT DUE TO MOISTURE DIFFUSION THROUGH EXPANSIVE SOILS A Dissertation by XIAOYAN LONG Submitted to the Office of Graduate ... Engineering iii ABSTRACT Prediction of Shear Strength and Vertical Movement due to Moisture Diffusion through Expansive Soils (August 2006) Xiaoyan Long, B.S., Changsha Railway University; M.S., ... prediction of moisture diffusion and the induced volume change in soils supporting various elements of civil infrastructure The capabilities of the model are illustrated through case studies of...
Ngày tải lên: 13/11/2014, 10:45
Pore size effect on heat transfer through porous medium
... heat transfer through porous materials In view of heat transfer through porous materials and its idealization, a great number of models exist in the literature The structure of porous materials ... thermal conductivity, and model of heat transfer through porous materials, will be presented in Chapter § Numerical approach on the heat transfer through porous materials, validation of the numerical ... of pore size in estimating thermal conductivity of porous materials, a great number of existing formulae and models on heat transfer through porous materials have been developed and are predominantly...
Ngày tải lên: 10/09/2015, 15:47
Redox reactions and charge transport through polyaniline membranes
... surfaces of microporous support membranes is interfacial polymerization (Martin et al 1993) This interfacial polymerization yields thin film composite membranes in which the microporous support ... transmembrane transport through PANI membrane Furthermore, ion diffusion was demonstrated to be the rate limiting step in different processes Based on transmembrane redox reactions through PANI-CSA ... REDOX REACTIONS THROUGH POLYANILINE MEMBRANES ROLE OF IONS AND INTERFACE 5.1 Introduction 85 5.2 Experimental methods 86 5.3 Results 89 5.3.1 The impedance measurements for undoped membranes 89...
Ngày tải lên: 15/09/2015, 17:10
Hydromagnetic convective flow past a vertical porous plate through a porous medium with suction and heat source
... is carrying on his Post Doc Research in MHD flow through Porous Media His major field of study is MHD flow, Heat and Mass Transfer Flow through Porous Media, Polar fluid, Stratified flow etc He ... co-workers [16] estimated the mass transfer effects on unsteady flow past an accelerated vertical porous plate with suction employing finite difference analysis Recently, Das et al [17] investigated ... convective flow of a viscous incompressible electrically conducting fluid past an infinite vertical porous plate with constant suction and heat flux in presence of a transverse magnetic field Approximate...
Ngày tải lên: 05/09/2013, 16:10
Báo cáo toán học: " Modeling bee swarming behavior through diffusion adaptation with asymmetric information sharing" pptx
... Compared with the diffusion model we adopted in Section 2.1, the difference is that the diffusion step of Equation (4) was performed on the estimates of the target location, while now diffusion is ... so by employing a diffusion adaptation strategy, and constructing a mobile network model to represent the swarm, with each node corresponding to a bee in the swarm By using diffusion adaptation ... their individual velocities to the average velocity of their neighbors through a consensus procedure In contrast, we incorporate diffusion adaptation and allow the bees to adjust their velocities...
Ngày tải lên: 20/06/2014, 20:20
Study on solute transport through RO NF membranes
... TRANSPORT THROUGH RO 102 MEMBRANES 5.1 Coupled Transport Mechanisms 103 5.2 Mathematical Model 105 5.3 Numerical Calculations 107 5.4 Results and Discussions 110 5.4.1 Transport through membranes ... mechanism (4) solution -diffusion mechanism (5) finely -porous theory Introduction Although the above theories have been put forward to describe the phenomena of salt transport through membranes, its mechanism ... transport process through RO/NF membranes Thus, a more Introduction fundamentally sound theory and a more comprehensive model is needed for predicting ion transport through RO/NF membranes 1.3 Research...
Ngày tải lên: 16/09/2015, 17:12
Brain Friendly Publications Activating Vocaulary Through Pictures
... A Start with a discussion to set the context See how many words the students already know Read through the words carefully for pronunciation practice Play a 'Can you tell me number please?' Game ... Puzzle pages for teaching Idioms Pictures of English Tenses Highly popular teaching/testing tenses through pictures ISBN 898295 48 Level (Elementary) Level (Lower Intermediate) ISBN 898295 52 Level...
Ngày tải lên: 05/10/2012, 08:20
Báo cáo y học: "Cancer control through principles of systems science, complexity, and chaos theory: A mode"
... hand, it could choose the path of stability through differentiation Implications for cancer control Systems in chaos are amenable to stabilizing change through a process of differentiation Similarly, ... existence of zones of order and chaos, with ongoing pendulum-like transitions of life entities through them Int J Med Sci 2007, 166 Figure 2: The center of this model lies in the health territory, ... self-organization It is “…spontaneous emergence of order…[allowed by] a constant flow of energy and matter through the system…[the] emergence of new structures and new forms of behavior…[which are] the hallmark...
Ngày tải lên: 26/10/2012, 10:04
Light through the Cracks
... read by flashlight long after her mother insisted she went to sleep Reading her books carried her through the days, and very slowly and softly eased her into sleep at night Her father’s presence ... also sounded a tiny alarm to warn her he was trying to get to her Lucy knew he could easily get through her security system, but she also knew that it would be noisy if he did Thank You for previewing...
Ngày tải lên: 07/11/2012, 09:08
Equivalence in the translation of vietnamese cultural words in the book “wandering through vietnamese culture” by huu ngoc
... all work, “Wandering through Vietnamese culture”, is assessed by an American writer, Lady Borton as “one comprehensive resource on Vietnamese culture in English” (Wandering through Vietnamese culture, ... translator, Huu Ngoc, dealt with all the Vietnamese cultural words his whole-hearted work “Wandering through Vietnamese culture” It also raised the need for translators of Vietnamese-English texts, ... Scope of the study This study sets its boundary in studying cultural words in the book “Wandering through Vietnamese culture” by Huu Ngoc It will look into the equivalence and non-equivalence of...
Ngày tải lên: 07/11/2012, 14:31
Some aspects of American culture and society in the twentieth and twenty-first centuries through a number of selected short literary works
... 2 American style with jeans and T-shirt, through the way we eat fast-food, drink soft drinks and spend money, through the way young people think more practically about love ... readers can learn what kind of personalities the character is through the words or actions of the character himself or herself, or through what the narrator or the other characters say about him ... of the target culture and society The twentieth and twenty-first century have witnessed a breakthrough of American economy as the United States of America has become the leading power of the...
Ngày tải lên: 07/11/2012, 15:01
INCREASING THE EFFECTIVENESS OF DUTY-FREE BUSINESS THROUGH DIVERSIFYING MARKETING STRATEGIES AT NOIBAI AIRPORT SERVICES JOIN-STOCK COMPANY
... marketing through single mailings that include letters, ads, samples, foldouts, and other “salespeople on wings” sent to prospects on mailing lists Catalog marketing involves selling through catalogs ... duty-free business of NASCO at Noibai International Airport through results of revenues by year, revenues by quarters, etc which were collected through its annual performance reports However, NASCO ... family, etc For instance, when transiting through Dubai airport of United Arab Emirates, tourists usually purchase jewelry in gold or trinkets; when transiting through Charles de Gaulle in Paris, tourists...
Ngày tải lên: 18/04/2013, 14:39
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