... to hypothesize about causes, such as the spread of SARS When SARS arose, ideas needed to be discussed as critically as possible, and an online journal has almost a similar capacity to handle "copy" ... running of the journal on a daily basis Paul and I have published many papers in the field of theoretical biology and medicine, which are disseminated over a wide range of jou...
Ngày tải lên: 13/08/2014, 22:22
... more quantization, and hence more distortion and quantization error, and a higher excess in variance, than the MH -FFT one The above generalized variance expressions of (17) and (18) can now be applied ... conventional approach, as described above, offers no flexible solution at all since low complexity (achievable with low quantization resolutions) and good accuracy (achievable wit...
Ngày tải lên: 22/06/2014, 23:20
A New Approach to Quantum Theory
... However, Feynman soon learned that there was a great obstacle to this delayed action-at -a- distance theory: namely, if a radiating electron, say in an atom or an antenna, were not acted upon at all by ... give an excellent analytic historical account in Variational Principles in Dynamics and Quantum Theory (Saunders, Philadelphia, 3rd edn., 1968) xii Feynman’s Thesis — A New...
Ngày tải lên: 06/11/2012, 11:21
Đề tài " Ramification theory for varieties over a perfect field " docx
... Annals of Mathematics, 168 (2008), 33–96 Ramification theory for varieties over a perfect field By Kazuya Kato and Takeshi Saito Abstract For an -adic sheaf on a variety of arbitrary dimension ... differents and log Lefschetz classes Swan class and Euler characteristic of a sheaf 4.1 Swan character class 4.2 Swan class and Euler characteristic of a sheaf 4.3 Properties of Swa...
Ngày tải lên: 06/03/2014, 08:21
Báo cáo "A new formulation for fast calculation of far field force in molecular dynamics simulations " ppt
... the performance of FMM on GRAPE In this paper we describe our new formulation to speed up far field force calculation – a significant calculation part of FMM on GRAPE Remaining parts of the paper ... and force evaluation Force- evaluation stage consists of near field and far field evaluation parts In the case of original FMM, only the near field part of...
Ngày tải lên: 22/03/2014, 11:20
Đề tài " A new construction of the moonshine vertex operator algebra over the real number field " pot
... Annals of Mathematics, 159 (2004), 535–596 A new construction of the moonshine vertex operator algebra over the real number field By Masahiko Miyamoto* Abstract We give a new construction of the ... of framed VOA into another framed VOA As applications, we study the five framed VOA structures on VE8 and construct many framed VOAs including V from a sm...
Ngày tải lên: 28/03/2014, 22:20
rammer, smith. quantum field-theoretical methods in transport theory of metals (rmp58, 1986)(t)(37s)
Ngày tải lên: 24/04/2014, 17:23
scientific american - 1995 08 - a new theory of aids latency
... experiments A current was passed through a vessel containing an amalgam of sodium separated by a glass partition from mercury After a while the amalgam was found to have lost a certain amount of its ... the atmosphere, are we go- of catastrophic change that dramaticaling to warm the earth and trigger errat- ly reshape landscapes,Ó Hearty explains ic sea-level events like those...
Ngày tải lên: 12/05/2014, 15:01
Báo cáo hóa học: " A New Algorithm for Joint Range-DOA-Frequency Estimation of Near-Field Sources" docx
... derive a new algorithm for joint estimation of the range, DOA, and frequency parameters For convenience of statement, i , (27) where angle(·) denotes the phase angle operator According to the assumption ... estimation accuracy since it makes full use of the information ¯ of the matrices C and C [11] CONCLUSION [12] Based on a symmetric uniform linear array, a compu...
Ngày tải lên: 23/06/2014, 01:20
Electromagnetic Field Theory: A Problem Solving Approach Part 75 pdf
... +Ax(VxB)+Bx(VxA) V (fA)= fV A+ (A - V)f V * (A x B)= B (V x A) -A -(V x B) v x (A x B) = A( V B) - B(V - A) +(B V )A- (A - V)B Vx(fA)= VfxA+fVxA (V x A) x A = (A V )A - 'V (A A) Vx (Vx A) = V(V - A) - V A INTEGRAL ... Cartesian (rectangular) coordinates, 260 cylindrical coordinates, 271 and magnetic scalar potential, 365 spherical coordinates, 284 Laplacian of reciprocal d...
Ngày tải lên: 03/07/2014, 02:20
Electromagnetic Field Theory: A Problem Solving Approach Part 1 ppsx
... CartesianCoordinates(x, y, z) af af Vf = - , + O i, + af i, ax Oz ay aA, aA, + aA, V A= a+ ax az ay (LAX, A AaA\ ay z V2f a' +f Ox jy + az a, O aA ax Ox ay a' f az CylindricalCoordinates ... •af4 + af r04 az Vf = arr 1a iA, aA, rr rr a Oz V *A= - -(rAr)+M +M I a BA, rr) r V~ f la0 af\ r- rr aA 82f + I(rAs) ar 'L ,+ a2 f ae+I r •O af If -14 r sin aO A (r a( sin OAo) oA* V" -A...
Ngày tải lên: 03/07/2014, 02:20
Electromagnetic Field Theory: A Problem Solving Approach Part 3 pot
... 9 .3 POINT DIPOLE ARRAYS 9 .3. 1 A Simple Two Element Array (a) BroadsideArray (b) End-fireArray (c) ArbitraryCurrentPhase 9 .3. 2 An N DipoleArray 9.4 LONG DIPOLEANTENNAS 9.4.1 FarFieldSolution 9.4.2 ... Voltage 8.2 .3 Approach to the dc Steady State 8.2.4 Inductors and Capacitorsas Quasi-static Approximations to Transmission Lines 8.2.5 Reflections from Arbitrary Terminations 8 .3 SI...
Ngày tải lên: 03/07/2014, 02:20
Electromagnetic Field Theory: A Problem Solving Approach Part 4 potx
... proportional to its magnitude The vector A = A~ i +A, i, +Ai, in Figure 1 -4 has magnitude A= IA = [A +A +AI Note that each of the components in (1) (A. , A, , and A, ) are themselves scalars The direction ... by the _AY A = A I IAI =A = (A Figure 1 -4 directions + Ayly+ AI1, +A +A. ]' A vector is described by its components along the three coordinate Vector Algebra scalar I...
Ngày tải lên: 03/07/2014, 02:20