darcy s equations for flow in porous media

... industrial fields The book is organized in 25 chapters that cover various aspects of natural gas research: technology, applications, forecasting, numerical simulations, transport and risk assessment ... liquid of constant compressibility or a gas The negative sign that proceeds the numerator of equation (12) shows that pressure decreases with increasing length of porous media The compressibility ... following data were obtained www.intechopen.com Steady State Compressible Fluid Flow in Porous Media 487 Flow rate (Q) = 1,000cc of air in 500sec Pressure down stream of core (p2) = atm absolute Flowing...

Ngày tải lên: 27/07/2014, 23:44

... Reynolds number for all cases as shown in Fig confirms the spread of solute in both soils As expected, the dispersion coefficient increases as Reynolds number becomes larger Under the saturated ... geometry of the interfaces CONCLUSIONS This study focused on the possible reuse of used hand warmer contents (HWCs) for retarding and spreading nitrate transport in two types of soils to avoid a ... conditions, the dispersion coefficient in Andisol indicates higher values than that in silica sand This feature reflects that the solutes spread larger during the course of transport in Andisol On...

Ngày tải lên: 05/09/2013, 10:15

... setting to discuss applications of stochastic dynamics We hope that the engineering and science students and researchers would be interested in this promising area of mathematics as well as in ... Porous Media discuss some of these concepts, arguments and mathematical computational constructs in an intuitive manner in this book 1.2 and Solute Transport in Porous Media Flow in porous media ... transverse velocity distributions were Gaussian Dispersion coefficients in the transverse directions approaches to zero with increasing time but some trajectories showed sharp increases in dispersion...

Ngày tải lên: 22/03/2014, 15:20

... rises and they crystallise again when this humidity declines This crystallisation/dissolution process causes the materials to decay There are various water-soluble salts in the walls of buildings, ... an option was made in using specimens of common commercial materials used finishing systems for walls and ceilings The experiments were therefore performed in specimens of, gypsum plaster (q = 1200 ... finishing materials, as well as furniture and textiles inside the dwellings, defines their hygroscopic inertia Reducing the persistence of high relative humidity values inside buildings is essential...

Ngày tải lên: 31/03/2014, 16:20

... analytical solution for solute transport in heterogeneous porous media with scale dependent dispersion In this model, dispersivity was assumed to increase linearly with flow length until some distance ... to represent a space- and time- correlated noise process The stochastic process V  (t ) forms infinitely many sub event spaces with increasing times We can describe the stochastic process V  ... of stochastic processes and differential equations is a natural mathematical setting In this chapter we review some essential concepts in stochastic processes and stochastic differential equations...

Ngày tải lên: 28/06/2014, 08:20

... analytical solution for solute transport in heterogeneous porous media with scale dependent dispersion In this model, dispersivity was assumed to increase linearly with flow length until some distance ... to represent a space- and time- correlated noise process The stochastic process V  (t ) forms infinitely many sub event spaces with increasing times We can describe the stochastic process V  ... of stochastic processes and differential equations is a natural mathematical setting In this chapter we review some essential concepts in stochastic processes and stochastic differential equations...

Ngày tải lên: 29/06/2014, 09:20

... inhibitors for Cu60 – Zn40 in 0.5M HNO3 Anti-Corrossion Methods Mater 2001; 48(5): 304-8 Finsgar M, Fassbender S, Nicolini F, Milosev I Polyethyleneimine as corrosion inhibitor for ASTM 420 stainless ... potentials in acidic solutions Poly(o-methoxyaniline) was successfully polymerised on stainless steel electrodes, as shown by cyclic voltammetry and impedance spectroscopy, and provided corrosion inhibition ... polyethyleneimine (PEI) as corrosion inhibitor for ASTM 420 stainless steel in 30% aqueous NaCl was studied [54] The results of linear polarization and cyclic polarization measurements indicate high inhibition...

Ngày tải lên: 27/04/2015, 09:08

... free space is transverse This is exactly what is observed in the Fresnel–Arago interference equations Thus, in Maxwell s theory this result is an immediate consequence of his equations, whereas in ... conducting dielectric We can now solve Maxwell s equations The result is remarkable and was the primary reason for Maxwell s belief in the validity of his equations In order to this, we first use ... (15-5) is called the displacement current Maxwell s equations form the basis for describing all electromagnetic phenomena When combined with the Lorentz force equation (which shall be discussed shortly)...

Ngày tải lên: 19/04/2016, 11:40

... (2.21) Thus there exists S > such that s3 −r where η = (2 − r)/ Q L ∞ (R N ) df η (x ,s) ≥ > ds s ≥ S, (2.22) Since f (x,t)t − 2F(x,t) = f (x,t)t − = t s2 t s f (x ,s) ds df (x ,s) ds = ds t sr −1 s3 −r ... the closed segment joining in E × R the points (0,0) and (0,r) It is possible to apply this result because the imposed assumption ensures that for every p ∈ C(K,X) with p = p∗ on K ∗ one has maxξ ... make use of the Palais-Smale condition The rest of the paper is organized as follows Section presents our main results which are Theorems 2.6 and 2.9 In Section we prove some auxiliary results The...

Ngày tải lên: 23/06/2014, 00:20

... Publishing House As stipulated in Article 1, this Law “regulates investment activities for business purposes; the rights and obligations of investors; the guarantee of lawful rights and interests ... views on equivalence will be discussed but there shall be no separate discussion of translation assessment; instead, it is implied that assessment of a translation is based on the respective kind ... German linguist House, and suggest any timely changes should there be to limit avoidable misunderstandings by foreign investors in interpreting the law Besides, the study will also propose some suggestions...

Ngày tải lên: 07/11/2012, 14:36

Ngày tải lên: 29/01/2014, 00:23

... popular Windows operating system, Microsoft stands to lose the most in an industry-wide shift to the GPL license Almost every line of source code in the Windows colossus is protected by copyrights reaffirming ... other pesky problems In engineering terms, user diligence was built into the system In modifying the machine for printer use, Xerox engineers had changed the user-machine relationship in a subtle ... requires an understanding of Stallman 's genius as a programmer and his failures and successes in translating that genius to other pursuits When it comes to offering his own summary of the journey, Stallman...

Ngày tải lên: 16/02/2014, 23:20

... aggresomes Discussion In this paper we show that expression of highly aggregating anti-p21Ras scFv fragments causes apoptosis in a large percentage of transfected cells This cytotoxic effect is strictly ... dose of lactacystin, only one-tenth of its IC50, induces a synergistic apoptotic effect in anti-Ras-expressing cells (Fig 4) This result underlines proteasome dysfunction as the specific event in ... regulatory proteins, such as cyclins and cyclindependent kinase inhibitor) and induces apoptosis in different tumor cells These molecules represent potential new anticancer agents [16,17] Strikingly,...

Ngày tải lên: 21/02/2014, 00:20

Ngày tải lên: 14/03/2014, 19:33

... electronic states in disordered systems was first noted by Anderson in 1958 [An], who argued that for a simple Schr¨dinger o operator in a disordered medium,“at sufficiently low densities transport does ... eigenvalues as in [KlM] and Poisson statistics for eigenvalue spacing as in [M] To get to Mott s formula, we conduct what seems to be the first careful mathematical analysis of the ac-conductivity in linear ... holds in the opposite direction for weak solutions (See the discussion in [BoGKS, Subsection 2.2].) At the formal level, one can easily see that the linear response current given in (2.7) is independent...

Ngày tải lên: 15/03/2014, 09:20

... intensity), Taste (sweetness, sourness, bitterness, saltiness), Mouth-feel (Firmness, solubility, fineness, stickiness, elastic, variety of aroma, fatness), Aftertaste (sweet, sour, bitter, salty) ... Butter odor Stickiness President Bo deo no Lactic odor Fineness Overall odor intensity Solubility Elastic Sweetness Firmness Sourness Saltiness Bitterness Figure Conventional Profile scores of fondue ... served for each assessor for tasting at x x cm sized in covered glass containers at 20°C Methods Descriptive analysis This test aimed at pointing out the essential vocabulary needed for cheese...

Ngày tải lên: 20/03/2014, 19:20

... private assistance through local authorities A government system provides “Cash Benefits for Closely Related Persons” through the special assistance system for a maximum 60 days in case of serious illness ... activities are the responsibility of the National Institute of Public Health The six main strategies outlined are as follows: • Increase social capital in the Swedish society: This includes efforts ... National statistics from surveys on incidence of crime are available and are presented in Table No clear pattern is seen among the nations in these statistics Income distribution is increasingly being...

Ngày tải lên: 22/03/2014, 11:20

... These efforts should address such issues as women s status, as well as myths and misconceptions about contraception International development agencies should also play a role in advocating for ... analysis was sponsored by the UNFPA Arab States Regional Office in Cairo 25 Susheela Singh and Jacqueline E Darroch, Adding It Up: Costs and Benefits of Contraceptive Services, Estimates for 2012 ... couples satisfy their contraceptive needs, providers in these sectors should maintain stocks of a mix of contraceptives and provide counseling so that women can choose the method that best matches...

Ngày tải lên: 22/03/2014, 11:20

... function of SEP53 in response to DCA, calcium release suppressed by SEP53, and its highly conserved calcium-binding domain Discussion Tissue-specific stress responses control cell injury, disease development, ... proteomics’ approach The first studies indicated that ex vivo stressed squamous cells in organ culture did not synthesize the classic stressed-induced protein HSP70 after stress, suggesting a novel ... biopsies (ink stain immunoblot to normalize for protein loading), as indicated (F) Immunostaining in normal squamous oesophageal epithelium shows SEP53 expression predominantly in the suprabasal...

Ngày tải lên: 23/03/2014, 10:21

... companies in 38 states in the U .S take their animals to state-inspected facilities for processing A major disadvantage is that meat processed in state-inspected facilities cannot cross state lines for ... atmospheric stunning (CAS) involves the use of gases that stun the birds into unconsciousness Multiple companies sell equipment and necessary supplies for electrical bird stunning There is some ... or other chemicals for elimination of microorganisms Air Chilling Air chilling in poultry processing has been used since the 197 0s in Europe In this system, bird carcasses hang individually from...

Ngày tải lên: 23/03/2014, 21:20