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Tài liệu Exercises of bending of beams pptx

Ngày tải lên : 22/12/2013, 14:16

... section in the form of an unsymmetric I section (see figure) is subjected to a bending moment acting about the x axis Determine the the width b of the top flange in order that the stresses at...

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Tài liệu Báo cáo " Study on Monte-Carlo calculation of peak efficiencies of the superpure Hp Ge detector (Gmx) in environmental gamma spectrometry with using MCNP4C2 " pptx

Ngày tải lên : 13/02/2014, 04:20

... the Los-Alamos laboratory, U.S.A [3], and at the same time the comparison of the obtained calculating results and experimentally measured data is made Monte-Carlo modeling with MCNP4C2 When the ... system for MCNP4C2 includes the following parts: - The sensitive volume of the detector - The mounting materials around detector - The entrance window or cover over the front of the detector - The ... Mathematics - Physics 23 (2007) 9-14 101 Fig.1 The confguration of the HP Ge (GMX) detector Relating to the physical dimensions of the above detector the thickness of the dead layer lying at the...

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Báo cáo " Calculation of Lindemann’s melting Temperature and Eutectic Point of bcc Binary Alloys " pot

Ngày tải lên : 14/03/2014, 13:20

... (K) 320 Melting curve, present Eutectic point, present Melting curve, Expt., Ref Eutectic point, Expt., Ref Melting temperature, Cs, Ref Melting temperature, Rb, Ref 305 300 295 2700 Melting curve, ... present Melting temperature of Fe, Ref Melting temperature of V, Ref Eutectic point, present Melting curve, present Melting temperature of Cr, Ref Melting temperature of Cs, Ref Eutectic point, ... for analytical calculation of the mean melting curves and eutectic points of bcc binary alloys This melting curve provides information on Lindemann’s melting temperatures of binary alloys with...

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Báo cáo " Calculation of dispersion relation and real atomic vibration of fcc crystals containing dopant atom using effective potential " pot

Ngày tải lên : 14/03/2014, 13:20

... = c1 cos ϕ l Substituting dispersion relation for the pure material [1] qa ω = ω max sin (22) into Eq (21) we obtain ϕ = qa , so that u l = cos(qa l + δ ) (23) Substituting Eq (23) into Eq (14) ... functions Substituting Eqs (26, 27) into Eq (14) we obtain 4ω 2keff 2λ + (1 − ε ) − = HD ω max keff (25) (26) (27) (28) From Eq (18) the frequency is resulted as (λ − 1) 2 ωmax 4λ Substituting Eq (29) ... q is wave number, and the effective force constant HD k eff (8) has the form of Eq (5) Substituting Eqs (8) into Eqs (7) and solving their characteristic equation we obtain solution as analytical...

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Báo cáo " Calculation of Morse Potential for Diamond Crystals. Applification to Anharmonic Effective Potential " docx

Ngày tải lên : 14/03/2014, 13:20

... anharmonic and harmonic effective potentials for Diamond crystals Si (a) and Sn (b) showing strong anharmonic shifting Conclusions A new procedure for calculation of Morse potential parameters for Diamond ... atom v = V / N is related to the lattice constant a by the relation [1] V / N = ca (10) Substituting Eq (10) in Eq (9) the compressibility is expressed by 1  d 2Φ  = (11)   K00 9cNa0  da ... − 2α ∑ M e j = U K00 9cNa0 (13) j Solving the system of Eqs (12, 13) we obtain α , β Substituting the obtained results into the second of Eq (3) we derive r0 Using the obtained α , β and Eq...

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Báo cáo "A new formulation for fast calculation of far field force in molecular dynamics simulations " ppt

Ngày tải lên : 22/03/2014, 11:20

... way as Anderson has done using Eq (2) The near field contribution is directly calculated by evaluating the particle-particle force GRAPE handles this part Using Eq (2), we obtain the far field potential ... + 1)bl−1 S ρ(a, θ, φ)Ylm∗ (θ, φ)ds (10) Here S is the surface of a unit sphere, and ρ is the continuous charge representation of pseudoparticle In this limit, the charge distribution is obtained ... Science, Mathematics - Physics 23 (2007) 1-8 Acknowledgements This work is supported by Advanced Computing Center, Institute of Physical and Chemical Research (RIKEN), Japan; Institute of Information...

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DEFLECTION OF BEAMS

Ngày tải lên : 08/04/2014, 11:27

... This is most readily done by plotting the bendingmoment curve, and from that deducing a curve of areas representing J M dz From this curve a third is deduced representing J J Mdz dz Problem 13.6 ... Equation (13.5) gives EI- d2v - -M dz2 On integrating once, we have EI dv - dz = -Mz+ A (13.8) Deflections of beams 298 where A is a constant On integrating once more EIv = Mz’ + AI + B (13.9) where ... that no twisting occurs, M may be written in terms of shearing force F and intensity w of vertical loading at any section From equation (7.9) we have - M d - dF - -w a2 dz2 On substituting for...

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molecular dynamics calculation of critical point

Ngày tải lên : 06/05/2014, 08:54

... approximation to the atomic interactions in fcc metals such as nickel, and is capable of predicting many material properties [5] Other potential functions, such as the EAM (embedded atomic method), ... time step, the total force, velocity, and position of each atom are calculated The total force acting on atom i is simply the summary of force vectors from all neighboring atoms: − → Fi = − → o ... pressure for ideal gases, p = RT /v The second N − − → → part 3V takes into account the interacting forces among Fij · rij i=1 j

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steinmetz cp theory and calculation of transient electric phenomena and oscillations

Ngày tải lên : 04/06/2014, 12:34

... second 82 53 52 Continued 86 54 Example 51 underground cable acting as rent generator of low frequency of oscillating cur- 87 RESISTANCE, INDUCTANCE AND CAPACITY IN SERIES IN ALTERNATING CURRENT CIRCUIT ... to consider alternating functions and transient functions of time and of distance " The theory of alternating functions of time is given in Theory and Calculation of Alternating Current Phenomena." ... some extent this volume can thus be considered as a con- tinuation of "Theory and Calculation of Alternating Current Phenomena." In editing this work, I have been greatly assisted by Prof Ferguson,...

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Báo cáo hóa học: " On calculation of eigenvalues and eigenfunctions of a Sturm-Liouville type problem with retarded argument which contains a spectral parameter in the boundary condition" pot

Ngày tải lên : 20/06/2014, 22:20

... (5) π +0 , where p(x) = p2 if x ∈ 0, π and p(x) = p2 if x ∈ 2 is continuous in 0, π ∪ π 2,π π 2,π real-valued function Δ(x) ≥ continuous in 0, π ∪ (π , the real-valued function q(x) π and has a ... eigenfunctions All authors read and approved the final manuscript Competing interests The authors declare that they have no completing interests Received: June 2011 Accepted: 17 November 2011 Published: ... normalized eigenfunctions of discontinuous Sturm-Liouville problem with transmission conditions Rep Math Phys 54(1):41–56 (2004) doi:10.1016/S0034-4877(04)80004-1 Altinisik, N, Kadakal, M, Mukhtarov,...

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Báo cáo hóa học: " Research Article Removing the Inﬂuence of Shimmer in the Calculation of Harmonics-To-Noise Ratios Using Ensemble-Averages in Voice Signals" docx

Ngày tải lên : 21/06/2014, 20:20

... as well as for both indistinctly [12, 15] If we denote the glottal ﬂow waveform as g(t), N i=1 s(t) N i=1 ei (t) E E N × E s(t)2 N i=1 E (2) ei (t) σs σe with E[ ] denoting the expected value ... formula in the presence of shimmer is performed, which results in a general form of Ferrer’s correcting formula [12] and allows the suppression of the eﬀect of shimmer in HNR (i) HNR measured in ... sensitivity of the method to jitter and shimmer has also been reported [5], and many approaches attempting to overcome these limitations have been proposed In [12] the need of averaging a large number...

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báo cáo hóa học:" Research Article Progressive Reﬁnement of Beamforming Vectors for High-Resolution Limited Feedback" potx

Ngày tải lên : 21/06/2014, 20:20

... involve rotating and shrinking the local codebook based on the previous quantization value at each step We also propose several low complexity variations of the algorithm To avoid rotating the local ... γ = γd(e1 , w) = γγ0 (7) Proof See [5, 6], for example (4) 4.3 Rotating a Local Codebook The codewords surround the generating vector e1 To perform a local quantization, it will be necessary ... special hand designed codes (as we did in constructing the Kerdock Ring code in Deﬁnition 9) 8 EURASIP Journal on Advances in Signal Processing The resulting local codebook may not have good distance...

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Báo cáo hóa học: " Research Article Computational Issues Associated with Automatic Calculation of Acute Myocardial Infarction Scores" doc

Ngày tải lên : 21/06/2014, 22:20

... which is obtained by connecting the ﬁrst T point to the subsequent P point Then the baseline is traced as the horizontal line that passes through the midpoint connecting the two preview ones, ... chapter 14, pp 23–50, Martinus Nijhoﬀ, The Hague, The Netherlands, 1982 [14] G S Wagner, C J Freye, S T Palmeri, et al., “Evaluation of a QRS scoring system for estimating myocardial infarct size ... pathological Q wave) In consequence, this score points out the degree of time evolution of the AMI, putting forward the time limit for the medicine to start reperfusion therapy In the literature, the...

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Báo cáo hóa học: "Convergence in the Calculation of the Handoff Arrival Rate: A Log-Time Iterative Algorithm" potx

Ngày tải lên : 22/06/2014, 22:20

... calculating the handoff arrival rate is proposed and used to overcome numerical overflow problems when a cell has a large number of channels The paper also presents an algorithm for computing the ... by explaining the source of the oscillating nonconvergence and by proposing to use an alternative expression and an accompanying novel algorithm for calculating the handoff arrival rate that always ... The leftmost plot shows the resulting state probabilities from a value of λh (1) = 0.712 858 Note that 1.170 851 55 and 0.712 858 are the two nonconverging, alternating values of λh illustrated...

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Báo cáo hóa học: "Application of Beamforming in Wireless Location Estimation" pdf

Ngày tải lên : 22/06/2014, 23:20

... this approach by implementing a simulation platform that matches the condition of an indoor environment The main diﬃculty in simulating an indoor RF channel is the strong dependence of the received ... pointing For a given layout, building material, transmitter-receiver location, frequency, and array size, the spatial power spectrum (SPS) at the receiver coordinates can be obtained by rotating ... antenna with no side-lobe suppression It is worth noting that the beam patterns generated in this way are not quite identical when the main lobe is pointing at diﬀerent directions This fact has been...

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CALPHAD (Calculation of Phase Diagrams): A Comprehensive Guide potx

Ngày tải lên : 29/06/2014, 09:20

... much computing experience behind him, some of the consequences of adopting the Brewer values were totally unacceptable In particular, Kaufman found difficulty in accepting some of the resulting low ... international nature of the proposed meetings and the idea of rotating meetings were stressed from the outset An initial bilateral agreement to generate official meetings between French and American ... Non-Allotropie Elements 6.2.2.1 The Van Laar Technique for Estimating Melting Points 6.2.2.2 The Estimation of Metastable Entropies of Melting 6.2.2.3 Determination of Transformation Enthalpies in...

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Báo cáo nghiên cứu khoa học: "NUMERICAL MODEL OF SINGLE PHASE TURBULENT FLOWS FOR CALCULATION OF PRESSURE DROP ALONG GAS PIPELINES " doc

Ngày tải lên : 22/07/2014, 10:21

... Calculating pressure drop along pipeline is performed with the following steps: Starting with the known pressure, p1 , at L1 Estimating a pressure increment Δp, corresponding to length ΔL Calculating ... kiểm soát qúa trình vận chuyển Trong thực tế việc tính toán xác thông số từ phương trình dòng chảy khó thực chúng liên quan tới nhiều qúa trình hóa lý diễn biến động học phức tạp Do vậy, số phương ... return to step repeating steps through until the estimated and calculated values are sufficiently closed Trang 16 TẠP CHÍ PHÁT TRIỂN KH&CN, TẬP 9,Số 4-2006 With this calculating order, establishing...

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$báo cáo khoa học: "IsoBED: a tool for automatic calculation of biologically equivalent fractionation schedules in radiotherapy using IMRT with a simultaneous integrated boost (SIB) technique" ppt$

báo cáo khoa học: "IsoBED: a tool for automatic calculation of biologically equivalent fractionation schedules in radiotherapy using IMRT with a simultaneous integrated boost (SIB) technique" ppt

Ngày tải lên : 10/08/2014, 10:21

... Drafting of the manuscript: VB, AA, MB and LS Final approval of the article: All authors read and approved the final manuscript Competing interests The authors declare that they have no competing ... and n1 and a new schedule is required, in terms of n2 and d2, with the same BED1, then, substituting n2 by n in equation (5) we obtain: The software allows the anatomical district to be selected ... the analysis of DVHs to be carried-out Cumulative or differential DVHs can be visualized after setting dose per fraction and fraction number In this window up to five plans imported from BrainScan,...

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Báo cáo sinh học: "Fast calculation of the quartet distance between trees of arbitrary degrees" potx

Ngày tải lên : 12/08/2014, 17:20

... can use O(|V||V'|) for calculating shared(T, T'), O(|V||V'|{id, id'}) for calculating nonshared(T,T'), O(|V|) for calculating shared(T,T) and O(|V'|) for calculating shared(T',T') Terminology ... topologies The trees generated by r8s are binary, but by contracting edges, we can get trees of arbitrary degree (contracting an edge e connecting nodes u and v means removing u and e and attaching the ... the total time of com- It is straightforward to observe that calculating shared(v, puting S is O(idvidv') The total time of computing all sums 2 v') using a direct computation of (3) takes time...

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