frenet serret formula for a space curve
Tài liệu A neural-network-based space-vector PWM controller for a three-level voltage-fed inverter induction motor drive doc
... signals are compared with the output of a single UP/DOWN counter and processed through a logic block to generate the PWM outputs for for for for for (5) for for for for for for for for for for ... -phase P states and performed with the and signals only Similar operations are signals of all the phases and all the The drive performance was evaluated in detail by simulation with the neural ... states appear as notched waves (see Fig 4) On the other hand, in , or states appear as notched waves the even sector states appear as pulsed waves This can be easily veriand fied by drawing waveforms...
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Life and Physical Sciences Research for a New Era of Space Exploration docx
... Administrative Coordinator TANJA PILZAK, Manager, Program Operations CELESTE A NAYLOR, Information Management Associate CHRISTINA O SHIPMAN, Financial Officer SANDRA WILSON, Financial Assistant ... Program Operations CELESTE A NAYLOR, Information Management Associate CHRISTINA O SHIPMAN, Financial Officer SANDRA WILSON, Financial Assistant viii AERONAUTICS AND SPACE ENGINEERING BOARD RAYMOND ... there are substantial problems with translational research efforts in space exploration A critical advantage of the ISS is that it provides a platform for research programs that can, in fact,...
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A New Formula for Child Health: Doctors Communities + Healthy Kids pdf
... booth and other health and safety games and arts booths Another parent was in charge of sharing information about the health fair at Café el Director, a monthly bilingual L to R: Juanita (with granddaughter ... before her, identified the Russian/English language barrier as a huge challenge for health and healthcare Instead, for the first time, Dr Inessa recognized that her native language was an asset ... Elizabeth Sterba, who began her involvement in CPT as a youth leader at the Tahoe/Colonial Collaborative (TCC), a community that literally shared a backyard with the UC Davis Medical Center and an...
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Báo cáo sinh học: " Research Article A Double S-Shaped Bifurcation Curve for a Reaction-Diffusion Model with Nonlinear Boundary Conditions" doc
... Yeh, “Exact multiplicity of solutions and S-shaped bifurcation curves for the p-Laplacian perturbed Gelfand problem in one space variable,” Journal of Mathematical Analysis and Applications, ... bifurcation diagram for β Again the double S-shape appears but in this case the Ss overlap, yielding exactly positive solutions for a certain range of λ Acknowledgment Eun Kyoung Lee was supported ... S V Parter, “Solutions of a differential equation arising in chemical reactor processes,” SIAM Journal on Applied Mathematics, vol 26, pp 687–716, 1974 12 D H Sattinger, A nonlinear parabolic...
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Báo cáo hóa học: " Research Article Composite Implicit General Iterative Process for a Nonexpansive Semigroup in Hilbert Space" ppt
... Netherlands, 2001 I Yamada, N Ogura, Y Yamashita, and K Sakaniwa, “Quadratic optimization of fixed points of nonexpansive mappings in Hilbert space, ” Numerical Functional Analysis and Optimization, vol ... Mathematical Analysis and Applications, vol 298, no 1, pp 279–291, 2004 G Marino and H.-K Xu, A general iterative method fornonexpansive mappings in Hilbert spaces,” Journal of Mathematical Analysis ... are not hard to derive Lemma 1.1 Marino and Xu Assume that A is a strongly positive linear bounded operator on a Hilbert space H with coefficient γ > and < ρ ≤ A −1 Then I − A ≤ − γ Lemma 1.2 Shimizu...
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Báo cáo hóa học: "Research Article A Strong Convergence Theorem for a Family of Quasi-φ-Nonexpansive Mappings in a Banach Space" pdf
... Reich, “An iterative method for solving a class of nonlinear operator equations in Banach spaces,” Panamerican Mathematical Journal, vol 4, no 2, pp 39–54, 1994 12 S Kamimura and W Takahashi, “Strong ... Netherlands, 1990 W Takahashi, Nonlinear Functional Analysis, Yokohama Publishers, Yokohama, Japan, 2000 10 Ya I Alber, “Metric and generalized projection operators in Banach spaces: properties and ... spaces and consequently, it is not available in more general Banach spaces In this connection, Alber 10 recently introduced a generalized projection operator ΠC in a Banach space X which is an...
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Báo cáo hóa học: " A Receiver for Differential Space-Time π/2-Shifted BPSK Modulation Based on Scalar-MSDD and the EM Algorithm" ppt
... modulation, space- time processing, channel estimation, and performance analysis He was the coauthor of a best paper award at IEEE VTC’04 Fall in Los Angeles, and at IEEE CCECE’04 in Niagara Falls Paul ... section This algorithm performs iterative channel estimation and data detection, by passing information back and forth between the channel estimator and the data detector At this point, we want to ... paper award at IEEE CCECE’04 in Niagara Falls Michael has been awarded Natural Sciences and Engineering Research Council (NSERC) Scholarships at the bachelors, masters, and doctoral levels Paul K...
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Báo cáo hóa học: " QUADRATIC OPTIMIZATION OF FIXED POINTS FOR A FAMILY OF NONEXPANSIVE MAPPINGS IN HILBERT SPACE" pot
... Yamada, N Ogura, Y Yamashita, and K Sakaniwa, Quadratic optimization of fixed points of nonexpansive mappings in Hilbert space, Numer Funct Anal Optim 19 (1998), no 1-2, 165–190 D C Youla, Mathematical ... following result from [12] If A is a real number and {a1 ,a2 , } ∈ ∞ such that µn {an } ≤ a for all Banach limits µn and limsupn (an+1 − an ) ≤ 0, then limsupn an ≤ a Consequently, limsup b − u∗ ,un ... nonexpansive mappings and applications, Indian J Math 41 (1999), no 3, 435–453 H H Bauschke, The approximation of fixed points of compositions of nonexpansive mappings in Hilbert space, J Math Anal...
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Research for a Future in Space: The Role of Life and Physical Sciences ppt
... that can help make long-duration spaceflight more affordable and safer Image Cred it: NASA The Matter of Materials The NASA Materials International Space Station Experiment (MISSE) mounted trays ... dust and gasses can flow as well, as particulate materials such as sand and dust Martian soil fines are also significantly magnetic, as the Viking landers clearly demonstrated at their two landing ... based on the Space Studies Board (SSB) report Recapturing a Future for Space Exploration: Life and Physical Sciences Research for a New Era, available for free online at www.nap.edu Details about...
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Báo cáo toán học: "A Plethysm Formula for pµ (x) ◦ hλ (x) William F. Doran IV Department of Mathematics California Institute of Technology Pasadena, CA 91125" doc
... repeated t times A tableau of shape λ and weight (or content) α = (α1 , , αl ) is a filling of the Ferrers diagram of λ with positive integers such that i appears αi times A tableau is semistandard ... semistandard if its entries are weakly increasing from left to right in each row and strictly increasing down each column The Kostka number Kλ,µ equals the number of semistandard tableaux of shape λ and ... of pairs does not differ A technical result Definition: Given a semistandard skew-tableau T , define J(T ) to be the semistandard tableau obtained by the following algorithm, called Jeu de Taquin...
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Báo cáo toán học: "A Multivariate Lagrange Inversion Formula for Asymptotic" pps
... or stationary phase, one finds that the determinant vanishes near the point where the integrand is maximized, and this can lead to difficulties as min(ni ) → ∞ We derive an alternate formulation ... A combinatorial proof of the multivariate Lagrange inversion formula, J Combin Theory Ser A 45 (1987) 178–195 [5] I P Goulden and D M Kulkarni, Multivariable Lagrange invers, GesselViennot cancellation ... cancellation and the Matrix Tree Theorem, J Combin Theory Ser A 80 (1997) 295–308 [6] M Haiman and W Schmitt, Incidence algebra antipodes and Lagrange inversion in one and several variables,...
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Báo cáo toán học: "A ‘nice’ bijection for a content formula for skew semistandard Young tableaux" docx
... SSYT, is a tabloid P such that the entries are weakly increasing along rows and strictly increasing along columns A reverse semistandard Young tableau of shape λ/µ is a tabloid R such that the ... all entries of T The content weight wc (T ) of a tabloid T is ρ∈λ/µ Tρ · (a + c(ρ)), where a is a given integer such that a + c(ρ) > for all cells ρ ∈ λ/µ A semistandard Young tableau of shape ... can be shown in a very similar manner that ⇐ indeed produces a SSYT We leave the details to the reader Finally, we want to prove that ⇐ is inverse to ⇒ Suppose that in ⇒ , a jeu de taquin forward...
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Báo cáo toán học: " A q-Analogue of Faulhaber’s Formula for Sums of Powers" doc
... Notice that the above formulas have the same pattern that each summand on the righthand side has no pole at q = 1, and so reduce directly to Faulhaber’s corresponding formulas when q → At the end ... of Tables and into Theorems 1.1 and 1.2 yields the summation formulas for sums of m-th power for m = 1, 2, , 11 In particular, for ≤ m ≤ we recover the formulas (1.2)–(1.6) of Warnaar and ... of his paper, Schlosser [8] speculated on the existence of a general formula for Sm,n (q), and left it as an open problem It is the purpose of this paper to provide such a general formula, which...
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Báo cáo toán học: "A Refinement of Cayley’s Formula for Trees" doc
... 1] as parking spaces and we think of f as a function that assigns to each car its favorite parking space The cars arrive in some order at their favorite parking spaces If space f (z) is not already ... cars at n) Then we call f a c-parking function if all cars are able to park using the same parking procedure as before, except that cars may now park in spaces to n + c − An alternative characterization ... define a labeled forest to be a forest whose vertex set is [n] for some n Thus replacing each vertex of a labeling of an arbitrary forest gives a labeled forest, and two labelings give the same labeled...
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Báo cáo toán học: "A closed formula for the number of convex permutominoes" pot
... operation (α), and one application of operations (β) and (γ) for any cell in cn ii P satisfies U2 (and not U1) The operator ϑ performs on P operation (δ), and one application of operations (β) and ... Pergola, E.: Exhaustive generation of combinatorial objects by ECO, Acta Informatica 40 (2004) 585-602 [2] Banderier, C., Bousquet-M´lou, M., Denise, A. , Flajolet, P., Gardy, D., Gouyoue Beauchamps, ... Figure 2: A permutomino and the two associated permutations The two permutations associated with P1 and P2 are indicated by π1 and π2 , respectively (see Figure 2) While it is clear that any permutomino...
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Báo cáo toán học: "A refinement of the formula for k-ary trees and the Gould-Vandermonde’s convolution" pps
... internal vertices and i colored leaves of the first class, we attach β leaves to its candidate leaf and erase the color of the candidate leaf (now an internal vertex) Thus we obtain a β-ary tree with ... finally remark that our approach to obtain the formula for k-ary trees may be applied to other combinatorial structures, especially recursive ones Acknowledgement The author would like to thank ... (2) and refine the formula for k-ary trees and the GouldVandermonde’s convolution through Riordan array theory The Riordan array theory is an effective tool to prove and invert combinatorial identities...
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Báo cáo toán học: "A graph-theoretic method for choosing a spanning set for a finite-dimensional vector space, with applications to the Grossman-Larson-Wright module and the Jacobian conjecture" pdf
... finite-dimensional vector space V from among a set of vectors X generated combinatorially, when it is not readily apparent how to order X or a canonical spanning set of V in a convenient way The motivation for ... The Graph Method It is well known that a square zero pattern matrix guarantees non-singularity if and only if it is permutationally equivalent to a triangular pattern with nonzero diagonal entries: ... theorems on square zero and sign pattern matrices which guarantee nonsingularity to rectangular zero and sign pattern matrices which guarantee full rank In Section we provide background information spelling...
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Báo cáo toán học: "A normalization formula for the Jack polynomials in superspace and an identity on partitions" pps
... Mathieu, Orthogonality of Jack polynomials in superspace, Adv Math 212, 361–388 (2007) [4] F Knop and S Sahi, A recursion and a combinatorial formula for the Jack polynomials, Invent Math 128, (1997) ... α (a (s) + 1) + lη (s) + A diagrammatic representation of these parameters is provided in Figure An explicit formula for Eη (x; α) is given in terms of certain tableaux called 0-admissible tableaux ... determinant Remark 15 A remark for those familiar with divided difference operators and Schubert calculus After this paper was submitted, A Lascoux showed us a proof of the γ case based on these operators...
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Báo cáo toán học: "A combinatorial proof of a formula for Betti numbers of a stacked polytope" pptx
... d-dimensional simplicial polytope P , we can attach a d-dimensional simplex to a facet of P A stacked polytope is a simplicial polytope obtained in this way starting with a d-dimensional simplex ... paper is to prove (3) combinatorially In the meanwhile, we get as corollaries the results of Bruns and Hibi [2] : a formula of bk (∆) if ∆ is a tree (or a cycle) considered as a 1-dimensional ... [1]) Now we can prove (3) Note that, for d 3, if P is a d-dimensional simplicial polytope and Q is a simplicial polytope obtained from P by attaching a d-dimensional simplex S to a facet of P ,...
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