نتایج جستجو برای: b field independent

تعداد نتایج: 2010655  

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2009
Julien Morthomas Alois Würger

By matching boundary layer hydrodynamics with slippage to the force-free flow at larger distances, we obtain the thermophoretic mobility of charged particles as a function of the Navier slip length b. A moderate value of b augments Ruckenstein's result by a term 2b/λ, where λ is the Debye length. If b exceeds the particle size a, the enhancement coefficient a/λ is independent of b but proportio...

Journal: :journal of agricultural science and technology 2010
j. a. olfati gh. peyvast h. shabani z. nosrati-rad

accurate and nondestructive methods to determine individual leaf areas of plants are useful tools in physiological and agronomic research. a determination of the individual leaf area (la) of such species in brassicaceae family as red cabbage (brassica oleracea var. cappitata l. f. rabra), cabbage (brassica oleracea var. cappitata l. f. alba) and broccoli (brassica oleracea var. italica l.) ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد 1376

in this thesis our aim is to construct vector field in r3 for which the corresponding one-dimensional maps have certain discontinuities. two kinds of vector fields are considered, the first the lorenz vector field, and the second originally introced here. the latter have chaotic behavior and motivate a class of one-parameter families of maps which have positive lyapunov exponents for an open in...

In this study, B12N12 Nano ring has been selected because it consist of four 6-side rings and polar bonds B-N which in comparison with non-polar bonds C-C, is more suitable for the study of the absorption of other compounds. So reactivity and stability of Benzene alone and in the presence B12N12 nano ring field checked. To determine the non-bonded interaction energies between Benzene and B12N12...

2002
L. Bonora D. Mamone M. Salizzoni

We show that squeezed state solutions for solitonic lumps in Vacuum String Field Theory still exist in the presence of a constant B field. We show that, just as in the B = 0 case, we can write down a compact explicit form for such solutions.

2008
Teruhiko Kawano Tomohiko Takahashi

In this paper, we study open-closed string field theory in the background B-field in the so-called α = p formulation. The string field theory in the infrared gives noncommutative gauge theory in the open string sector. Since this theory includes closed string fields as dynamical variables, we can obtain another string field theory in the same background through the condensation of closed string...

2000
Fumihiko Sugino

In this paper we consider Witten’s bosonic open string field theory in the presence of a constant background of the second-rank antisymmetric tensor field Bij. We extend the operator formulation of Gross and Jevicki in this situation and construct the overlap vertices explicitly. As a result we find a noncommutative structure of the Moyal type only in the zero-mode sector, which is consistent w...

Journal: :The Journal of the American Board of Family Practice 1996
P E McBride

This issue of the JABFP marks the start of its 9th year of publication and is noteworthy on several counts. WIth the specialty now 26 years, or about one generation, old, this journal's readership now totals almost 55,000 Diplomates of the American Board of Family Practice and family practice residents. That number is projected to grow by at least 3000 each year as new residency-trained graduat...

Journal: :Family medicine 2005
Sweety Jain

(Fam Med 2005;37(7):461-3.) Editor’s Note: In this month’s column, Sweety Jain, MD, of the Sacred Heart Hospital Family Practice Residency in Allentown, Pa, discusses important items that should be discussed with residents and students when orienting them to office practice. I welcome your comments about this feature, which is also published on the STFM Web site at www.stfm.org. I also encourag...

Journal: :Journal of the American Board of Family Medicine : JABFM 2014
Daniel M Avery Dwight E Hooper John T McDonald Michael W Love Melanie T Tucker Jason M Parton

BACKGROUND The economic impact of a family physician practicing family medicine in rural Alabama is $1,000,000 a year in economic benefit to the community. The economic benefit of those rural family physicians practicing obstetrics has not been studied. This study was designed to determine whether there was any added economic benefit of rural family physicians practicing obstetrics in rural, un...

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