theories experiments and nematodynamic simulations of shearing flows

... Theory and Estimates, RAND Corporation, R-3028-AF, 1984, and the extension of the basic DRM to take into account the effect of the availability of multiyear contracts to certain classes of Air ... policies RAND Project AIR FORCE RAND Project AIR FORCE (PAF), a division of the RAND Corporation, is the U.S Air Force’s federally funded research and development center for studies and analyses ... leaves at time t, and 11 12 The Dynamic Retention Model for Air Force Of cers The value of leaving depends on current and expected future civilian earnings, retirement benefits, and random shocks Retirement...

Ngày tải lên: 17/02/2014, 23:20

... Proof By the continuation of solutions and the singularity of ᏷ at the point P0 , the set ᏷(P0 ) = ∅ Taking into account the nature of the vector field and the definition of the singularity of ... (2.24) A terminal BVP with f continuous and let E0 be a continuum (i.e., compact and connected) subset of Rn and let ᐄ(E0 ) be the family of all solutions of 2.24 emanating from E0 If any solution ... ] properties and so forth and finally we can obtain sequences {ξ0n } and {ξ1n } such that limξ0n = limξ1n = ξM (3.123) By the construction of {ξin } (i = 0,1) and the definition of ξM , we conclude...

Ngày tải lên: 22/06/2014, 22:20

... one-dimensional steady-state and transient simulations are carried out for analyses of equilibrium and kinetics of the electric-stimulus responsive hydrogels, respectively Simulations are also conducted ... Effect of valence on the variation of anion concentration 94 Figure 4.11(c) Effect of valence on the variation of electric potential 95 Figure 4.11(d) Effect of valence on the variation of displacement ... model to provide more accurate simulations of the responsive behaviors of hydrogels, including the mechanical deformation and the distributions of diffusive ions and electric potential As mentioned...

Ngày tải lên: 26/11/2015, 22:29

... Examples of "N1 wa N2da" The distribution of N] and N2 in the examples 190 of our corpus vary for each case Attention should be given to 2-tuples of nouns, (N1, N2) N2s of (a-4), (13) and (c) ... retrieved, for instance, those of the form, "B of A" and "AB" for "rolm-gatsu [June] no futsu-ka [second]" This is one of the main reasons the graphs (Figure and 8) show an up -and- down pattern They can ... conference of Kyoto", could be misconstrued as "the conference about Kyoto", and the last one, "hotels of three", is not English Natural translations often require prepositions other than "of" , or...

Ngày tải lên: 20/02/2014, 21:20

... the proofs of Propositions 4.8 and 4.9 are valid for f ∈ C 1,1 Proof of Lemma 4.2 Let Ψ ∈ V be sufficiently C -close to Ψ0 ∈ V∞ and let f ∈ C r (Σ1 ) Statements (1) and (2) of Lemma 4.2, and the ... the C r -stability of mixing, and of the rate of mixing, for Axiom A and Anosov flows There is a quite extensive literature on mixing and rates of mixing for certain classes of Anosov flows In particular, ... homoclinic point xH ∈ Σ1 , and the closure of the Ψ -orbit of xH is a compact invariant hyperbolic subset of Σ1 Furthermore, p and xH depend continuously on Φt , C -topology, and Ψ and f : Σ1 → R depend...

Ngày tải lên: 15/03/2014, 09:20

... potential consists of two- and three-body interaction terms and were originally fitted to describe the crystalline and liquid silicon phases This potential consists of sums of two- and three-body ... pentagonal and hexagonal SiNWs along the /11 0S direction Justo et al [24] reported classical molecular dynamic simulations of silicon nanowires of various shapes and orientations Menon [20] and Ponomareva ... properties of SiNWs The loading state in the present tension simulations is as follows: the relative positions of atoms within the five atomic layers at the top and bottom of NWs are fixed during simulations, ...

Ngày tải lên: 16/03/2014, 15:18

... development of new numerical methods for direct numerical simulations (DNS) of multiphase flows that have produced detailed studies and improved knowledge of multiphase flows While the origin of DNS of ... to many laboratories, and as editors of scientific journals such as the Journal of Computational Physics and the International Journal of Multiphase Flows To us, the state of the art can be summarized ... steady-state motion of bubbles and droplets in Stokes flow, linear inviscid waves, and small oscillations of bubbles and droplets Experimental studies of Introduction Fig 1.1 A picture of many buoyant...

Ngày tải lên: 28/03/2014, 09:20

... matches one of the free frequencies of the problem, that is, one of the eigenvalues of A Subresonant forcing occurs when one of the frequencies of g matches an integer multiple of one of the free ... Lorenz and Keller [104] f Irregular ecological dynamics studied by Ricker and May [48] g Random processes, including the Law of Large Numbers and ergodic and other limit theorems [82] These and ... understand the motion of a pendulum Many of the methods used in the theory of nonlinear oscillations grew out of studies of such pendulum problems; they are applicable now to a wide variety of new...

Ngày tải lên: 24/04/2014, 16:50

Ngày tải lên: 12/06/2014, 11:34

... On the nature of the fundamental activity of the nervous centres; together with an analysis of the conditioning of rhythmic activity in progression, and a theory of the evolution of function in ... patterns of contralateral CPGs (upper left and lower right, upper right and lower left) were in-phase while bilateral CPGs (upper left and upper right, lower left and lower right) were out -of- phase ... 2School of Kinesiology, University of Michigan, Ann Arbor, MI, USA 3Department of Physical Medicine and Rehabilitation, University of Michigan, Ann Arbor, MI, USA Authors’ contributions HJH and DPF...

Ngày tải lên: 19/06/2014, 08:20

... pioneering work of Perron see and developed later in remarkable works by Coppel see 10 , Daleckii and Krein see 11 , Massera and Sch¨ ffer see 12 one of the most operational tool in the study of the asymptotic ... a new concept of admissibility which relies on a double solvability of an associated integral equation and on the uniform boundedness of the norm of solution relative to the norm of the input ... of characterizing the exponential trichotomy of skew-product flows in terms of the solvability of an integral equation and also in establishing the connections between the qualitative theory of...

Ngày tải lên: 21/06/2014, 05:20

... class of simulators which is capable of making very long SON simulations with the necessary level of accuracy It can be understood as a smart extension of snapshotbased tools with a time axis and ... generate a large number S of random C-tuples {v1,s , v2,s , , vC,s } with s = S containing samples of the random variables v1 , v2 , , vC As long as the number of samples S is sufficiently ... Zload,c , Zpower,c , and Zctrl,c to a single number of unsatisfied users per cell With our high level of abstraction this is quite challenging since the sets of load-, power-, and control-unsatisfied...

Ngày tải lên: 21/06/2014, 11:20

... MD simulation of the RNIL process The objectives of this study are to understand the deformation behavior of imprinted film and the effect of adhesion and friction with changes of the roller tooth ... displacement of 0.002° per time step The unit of time step was 10-15 s The characteristic width and height of the roller tooth were both nm The roller was composed of 11294 atoms The width and height of ... imprinting caused the slip planes of (101) and ð" "Þ to occur at the left and right sides of the tooth at a 101 rotation angle of 31°, as shown in Fig 4c Effect of Taper Angle on Roller Nanoimprint...

Ngày tải lên: 21/06/2014, 20:20

... in the vicinity of shocks and the characteristic upstream weighted test function are tested The results of this research are an algorithm and program to represent hydraulic jumps and oblique jumps ... performed the test on supercritical contraction At the time of publication of this report, Director of WES was Dr Robert W Whalin Commander was COL Bruce K Howard, EN ntroduction Background Shocks ... the other hand the sharp resolution of the shock can be forfeited and allow for O(1) error at the transition This is referred to as "shock-capturing," as originated by von Neumann and Richtmyer...

Ngày tải lên: 21/06/2014, 22:20

... following: P where A = IA is the matrix of eigenvalues of A and P and P- are made up of the right and left eigenvectors Chapter Numerical Approach A=P-'AP where and A1=U+C h;?=u-C A3 = U C = (gh)1t2 ... be written as where and the subscript indicates a constant value We may select the matrix P such that where A is the matrix of eigenvalues of A, and P and P-' are composed of the eigenvectors ... method of Courant, Isaacson, and Rees (1952) for one-sided differences These ideas were expanded to more general problems by Moretti (1979) and Gabutti (1983) as split-coefficient matrix methods and...

Ngày tải lên: 21/06/2014, 22:20

... Manning's n and viscosity of 0.0 there is no dissipation in the shallow-water equations Figures 6-8 and 9-11 show the center-line profile over time of these tests for at = 1.0 and for AX = 0.4 and 0.8 ... depth (and elevation) of 0.0762 m The velocity is zero and then the dam is removed The surge location and height were recorded at several stations, and our model is compared at three of these, ... is most notable upstream of the jump for larger values of C, But as C, decreases, there is an undershoot in front of the shock The slope of the x-t line along the top of the shock has a significant...

Ngày tải lên: 21/06/2014, 22:20

... stations 4, and are shown in Figures 24-26 Here the time-history of the water elevation is shown for the inside and outside of the channel for both the numerical model (at of 1.0 and 1.5) and the ... designated by squares and the outside by diamonds Of particular importance is the arrival time of the shock front At station the numerical prediction of arrival time using of 1.0 is about 3.4 sec ... percent fast For of 1.5 the time of arrival is 3.55 sec which is about 0.1 sec late (3 percent) At station both flume and numerical model arrival times for at of 1.0 were about 4.3 sec and for slation...

Ngày tải lên: 21/06/2014, 22:20

... A, is the diagonal matrix of eigenvalues and Po and P-: are composed of the eigenvectors (and are arbitrary) With the substitution of Equation 55 into 54 and multiplication by P-: we retrieve the ... and substituting and Chapter Testing where the superscript n indicates the time-step and the subscript j is the spatial node location We now present the results of this analysis for a = 112 and ... test case, the dam break test case For the sake of completeness the relative amplitude and speed portraits are included for a = and 0.25 at at of 1.0 and 1.5 in Figures 35-42 The condition a = is,...

Ngày tải lên: 21/06/2014, 22:20

... numerical calculation of hydrodynamic shocks," Journal of Applied Physics 21, 232237 Walters, R A., and Carey, G F (1983) "Analysis of spurious oscillation modes for the shallow water and Navier-Stokes ... depends on the variation of mechanical energy within an element The veracity of the model is tested by comparison of the predicted jump speed and magnitude with nalytic and flume results A comparison ... Relative amplitude versus C and resolution for at = 1.5 and a = Relative Speed Elements per Wavelength Figure 40 Relative speed versus C and resolution for at = 1.5 and a = Chapter Testing Relative...

Ngày tải lên: 21/06/2014, 22:20