calculation of lv suorce
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
... detector efficiency based on theoretical calculations. Nowadays, the numerical calculation of efficiency of various types of gamma detectors has been a field of research. The Monte-Carlo modeling ... VNU Journal of Science, Mathematics - Physics 23 (2007) 99-104 99 Study on Monte-Carlo calculation of peak efficiencies of the superpure Hp Ge detector (Gmx) in ... 5.57 4. Conclusion The problem of photon self-absorption in gamma spectrometry of environmental samples has no simple solution because of the attenuation of photons depending on many various...
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Báo cáo " Calculation of Lindemann’s melting Temperature and Eutectic Point of bcc Binary Alloys " pot
... 147 Calculation of Lindemann’s melting Temperature and Eutectic Point of bcc Binary Alloys Nguyen Van Hung*, Nguyen Cong Toan, Hoang Thi Khanh Giang Department of Physics, University of ... center of the bcc are localized in an elementary cell. Hence, the total number of atoms in an elementary cell is 2. Then if on average s is atomic number of type 1 and (2 - s) is atomic number of ... mean energy of the crystal consisting of N lattice cells is given by ()∑−+=∑=qqqqqquMsusMNq22222121)2( ωωεE, (6) where, M1, M2 are the masses of atoms of types 1 and...
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Báo cáo " Calculation of dispersion relation and real atomic vibration of fcc crystals containing dopant atom using effective potential " pot
... and phase of real vibration of atomic chain containing dopant atom have been derived. They contain Morse potential parameters characterizing vibration of each pair of atoms. Numerical calculations ... Trung Department of Physics, College of Science, VNU, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam Received 16 June 2008 Abstract. A new procedure for calculation and analysis of dispersion relation ... VNU Journal of Science, Mathematics - Physics 24 (2008) 223-230 223 Calculation of dispersion relation and real atomic vibration of fcc crystals containing dopant atom...
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Báo cáo " Calculation of Morse Potential for Diamond Crystals. Applification to Anharmonic Effective Potential " docx
... contained in the expressions of equation of state [1]. Therefore, calculation of the Morse potential is very actually desired, especially in XAFS theory. The calculation of Morse potential has been ... the efficiency and reliability of the present procedure in computation of the VNU Journal of Science, Mathematics - Physics 24 (2008) 125-131 125 Calculation of Morse Potential for Diamond ... The purpose of this work is to develop a method for calculation of Morse potential parameters of Diamond, an interesting crystal structure. Analytical expressions for the parameters of this potential...
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Báo cáo "A new formulation for fast calculation of far field force in molecular dynamics simulations " ppt
... simulations often require high calculation cost. The most intensivepart of MD is calculation of Coulombic force among particles (i.e. atoms and ions). In naive direct-summation algorithm, cost of the ... performance of FMM on GRAPE.In this paper we describe our new formulation to speed up far field force calculation – a sig-nificant calculation part of FMM on GRAPE. Remaining parts of the paper ... evaluation of it takes rather big fraction of the overall calculation time [10].If we can convert a set of potential values into a set of pseudoparticles at marginal calculation cost, force from those...
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molecular dynamics calculation of critical point
... forms of EOS.Molecular Dynamics Calculation of Critical Point of Nickel 11In Eq. (1), D is the total dissociation energy, rεis the equilibrium distance,and b is a constant, with values of 0.4205 ... axis of the calculation domain (39.66 nm at roomtemperature). It is seen that the fluctuation of density at state b is largerthan those at the other two states, indicating the coexistence of gas ... are calculated from the statisticalanalysis of positions, velocities, and forces of the molecules at locations of interest. With very few assumptions of the material properties and the pro-cess,...
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steinmetz cp theory and calculation of transient electric phenomena and oscillations
... viiiPREFACEorsteepwavefronts,therebylimitingtheusefulness of thetheoreticalinvestigation,andmakesthe calculation of manyim-portant phenomena,suchasthedetermination of thedangerzone of steepwavefronts,theconditions of circuitdesignlimit-ingthedanger ... of thesetransientphenomenawereobservedandexperi-mentallyinvestigatedintheearlyclays of electricalengineeringforinstance,thebuildingup of thevoltage of direct-currentgeneratorsfromtheremanentmagnetism.Others,sucha,stheinvestigation of therapidity of theresponse of acompoundgeneratororaboostertoachange of load,havebecome of impor-tancewiththestricterrequirementsnowmadeonelectrictotemsIransientphenomena ... circuit..13178.Capacityshuntingapart of thecontinuous-current circuit.Derivation of equations.13379.Calculations of numericalexample.13680.Discussions of theelimination of currentpulsationsbyshuntedcapacity.13781.Example of elimination of pulsationfrom...
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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
... Bayramov Journal of Inequalities and Applications 2011, 2011:113http://www.journalofinequalitiesandapplications.com/content/2011/1/113Page 7 of 9RESEARCH Open AccessOn calculation of eigenvalues ... Bayramov: On calculation of eigenvalues and eigenfunctions of a Sturm-Liouvilletype problem with retarded argument which contains a spectral parameter in the boundary condition. Journal of Inequalities ... λn)=O1n.Şen and Bayramov Journal of Inequalities and Applications 2011, 2011:113http://www.journalofinequalitiesandapplications.com/content/2011/1/113Page 6 of 9Proof. To prove this, it is enough...
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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
... evaluation of the influence of jitter (as well of other levels of noise and their combinations) in theperformance of the PDA and HNRSr would require extensivetests and is out of the scope of this ... implementation of (28)wasperformedbysetting a sampling frequency of 22050 Hz, a fundamentalfrequency of 150 Hz (yielding 147 samples per period), andM= 300, to produce an approximate of 2 seconds of synthesized ... spite of using estimated values forthe pulse amplitudes.Both facts can be explained by the presence, in any pulse of the signal, of the decaying tails of previous pulses. Thissummation of tails...
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Báo cáo hóa học: " Research Article Computational Issues Associated with Automatic Calculation of Acute Myocardial Infarction Scores" doc
... involves the assessment of both memoryoccupation and time processing as the number of leadsn varies. The computational complexity of Selvester scoreshould also be calculated as a function of ... the group of rules in Selvester table (see Ta bl e 6).This step involves the knowledge of the maximum peaksassociated with Q, R,andS,aswellasthedurationofQ-wave and R-wave. From Selvester table, ... n=02004006008001000Number of operations10 20 30 40 50Number of leads (n)SelvesterAnderson-WilkinsAldrichAldrich scoreSelvester scoreAnderson-Wilkins scoreFigure 2: Theoretical computational complexity of (5a)-(5b),...
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Báo cáo " Long-term sediment distribution calculation taking into account sea level rise and the development of Day estuary " potx
... 25km2 in offshore region. The domain includes 2879 nodes with the coarse resolution of 5000m for offshore and the fine resolution of 50m for nearshore areas. Figure 1. a) Bathymetry of the ... avoid problem of filling in Day river mouth. Calculations show an agreement with recent other studies. Results also provide evidence for the importance of annual dredging of Day river mouth ... increasing trend of water level (red line). Magnitude of the increase is consistent with the increase projected in the sea level rise scenarios in section 4. 5.4. Calculation of sediment distribution...
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cost accounting and product's price calculation for ba ding printing company - ministry of public security
... with these software parameters, a cost accountant delves into details on material, manufacturing and labor costs. He includes analyses of costs versus profitability in all areas of operation. ... words, it is a system of accounting, which provides the information about the ascertainment, and control of costs of products, or services. It measures the operating efficiency of the enterprise. ... research focuses on the cost accounting system of one of the biggest company in Vietnam, Ba Dinh Printing Company, which is under the control of Ministry of Public Security. As its name, the company...
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Báo cáo khoa học: Structural function of C-terminal amidation of endomorphin Conformational comparison ofl-selective endomorphin-2 with its C-terminal free acid, studied by 1 H-NMR spectroscopy, molecular calculation, and X-ray crystallography pot
... or EM2OH was dissolved in 0.7 mL of TFEFig. 9. Stereoscopic view of possible dock-ing of rS-type open conformer of EM2 (balland stick model) on the agonist binding site of the l-opioid receptor ... His297. The fitting of theoverall conformation of EM2 to the spatial area of thel-opioid receptor pocket showed a high preference forthe accommodation of the open conformer of EM2over the folded ... positions of H atoms of amino and hydroxylgroups of EM2OH and water molecules were determinedfrom a difference Fourier map, while those of the other Hatoms were calculated on the basis of their...
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