calculation of residual entropy

Ngày tải lên: 05/09/2013, 08:40

... 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...

Ngày tải lên: 13/02/2014, 04:20

... 0.6 0.7 0.8 0.9 1 10 100 1000 10000 100000 1e+06 size(KB) recall precision 434 Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions, pages 428–435, Sydney, July 2006. c 2006...

Ngày tải lên: 20/02/2014, 12:20

... 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 ( ) ∑ −+= ∑ = q qqqqq uMsusMN q 2 2 2 2 2 1 2 1 )2( ωωεE , (6) where, M 1 , M 2 are the masses of atoms of types 1 and...

Ngày tải lên: 14/03/2014, 13:20

... 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...

Ngày tải lên: 14/03/2014, 13:20

... 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...

Ngày tải lên: 14/03/2014, 13:20

... secondly [T], which demonstrates a form of duality involving some measures of the size of entire sequences (e k (u)), (e k (u ∗ )). The proof of the theorem consists of three parts. The first part is ... first step of the proof of the main theorem is a duality result involving the parameter γ instead of a universal constant α. The following lemma is a combination of two statements, the first of which ... inequality we used (6) of Corollary 6. For the proof of the other side of the inequality in the main theorem we have a different condition on the sequence to make this type of argument work. Again,...

Ngày tải lên: 14/03/2014, 22:20

... simulations often require high calculation cost. The most intensive part 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...

Ngày tải lên: 22/03/2014, 11:20

... domain, given a large corpus of out -of- domain training data and a small corpus of in-domain data. The main contribution of this ∗ Currently with Tallinn University of Technology, Esto- nia paper ... test data, often a small amount of speech data is human-transcribed. A LM is then built by interpolating the models estimated from large corpus of written language and the small corpus of transcribed ... interpolated ME models. 2 Review of Conditional Maximum Entropy Language Models Maximum entropy (ME) modeling is a framework that has been used in a wide area of natural lan- guage processing...

Ngày tải lên: 23/03/2014, 16:20

... forms of EOS. Molecular Dynamics Calculation of Critical Point of Nickel 11 In Eq. (1), D is the total dissociation energy, r ε is the equilibrium distance, and b is a constant, with values of ... axis of the calculation domain (39.66 nm at room temperature). It is seen that the fluctuation of density at state b is larger than those at the other two states, indicating the coexistence of gas ... are calculated from the statistical analysis of positions, velocities, and forces of the molecules at locations of interest. With very few assumptions of the material properties and the pro- cess,...

Ngày tải lên: 06/05/2014, 08:54

... centre of the hole 10 mm from the toe end of the weld -76 108 -25 4’ the centre of the hole 12 mm from the toe of the weld -23 33 7 5’ the centre of the hole 12 mm from the toe end of the weld ... -84 50 7 2 the centre of the hole 12 mm from the toe of the weld 2 159 66 3 the centre of the hole 10 mm from the toe of the weld -13 156 62 Table 4. The residual stress measurements ... illustration of Vickers Hardness measurements, b) comparison of the results of hardness measurements for line scans. 3. RESIDUAL STRESS EVALUATION The hole drilling method is often described...

Ngày tải lên: 17/05/2014, 15:28

... corresponding to the multi-cycle region of loading of the welded joints, the relaxation of residual stresses occurs mainly during the first cycle. The results of residual stress measurements in welded ... were measured in a total of 303 points with 21 residual stress profiles studied. Specimens and Welded Panel for Residual Stress Measurements. The measurements of welding residual stress were performed ... level of residual stresses and number of cycles of loading (red line) and max/min stresses during second cycle of loading (green line). ΔC/C ·10 -3 σ, MPa 1 2 3 Fig.3. Change of ultrasonic...

Ngày tải lên: 24/05/2014, 20:32

... viii PREFACE or steep wave fronts, thereby limiting the usefulness of the theoretical investigation, and makes the calculation of many im- portant phenomena, such as the determination of the danger zone of steep wave fronts, the conditions of circuit design limit- ing the danger ... circuit. . 131 78. Capacity shunting a part of the continuous-current circuit. Derivation of equations. 133 79. Calculations of numerical example. 136 80. Discussions of the elimination of current pulsations by shunted capacity. 137 81. Example of elimination of pulsation from ... conductance. 9. Magnitude of resistance, inductance and capacity in in- dustrial circuits. Circuits of negligible capacity. 10. Gradual change of circuit conditions in a circuit of negli- gible capacity. Effect of capacity in allowing a sudden change of circuit conditions, causing a surge of energy between magnetic and...

Ngày tải lên: 04/06/2014, 12:34

... multistep process of tumor metastasis. Invasion of malignant tumor cells requires destruction of basement membranes and proteolysis of extracellular matrix (ECM). Of the several families of ECM-degrading ... and metastasis through induction of overexpression of PCNA, MMP-9, VEGF, HGF and IL-6. It is important to clarify the underlying mechanisms of rapid progression of residual HCC after RFA, to opti- mize ... article as: Ke et al.: Low temperature of radiofrequency ablation at the target sites can facilitate rapid progression of residual hepatic VX2 carcinoma. Journal of Translational Medicine 2010 8:73. Submit...

Ngày tải lên: 18/06/2014, 16:20

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Ngày tải lên: 21/06/2014, 11:20