Search results

1

The dynamics of the surface layer of lipid membranes doped by vanadium complex: computer modeling and EPR studies

100%

Olchawa R., Man D., Pytel B.

Nukleonika

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2015

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vol. 60

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issue 3

395-398

EN

Penetration of the liposome membranes doped with vanadium complex formed in the liquid-crystalline phase from egg yolk lecithin (EYL) by the TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) spin probes has been investigated. The penetration process was followed by 360 hours at 24°C, using the electron spin resonance (EPR) method. The spectroscopic parameter of the partition (F) of this probe indicated that a maximum rigidity of the membrane was at 3% concentration of the vanadium complex. Computer simulations showed that the increase in the rigidity of the membrane corresponds to the closure of gaps in the surface layer of the membrane, and indicates the essential role of the membrane surface in transport processes.

2

The Use of the Monte Carlo Method to Determine Optical Parameters of Tissue

100%

Domański G., Konarzewski B., Pawłowski Z., Zaremba K., Marzec J., Trybuła A., Kurjata R.

Polish Journal of Medical Physics And Engineering

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2007

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vol. 13

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issue 1

23-32

EN

The paper presents the use of the Monte Carlo method to determine the optical parameters of tissue from steady-state diffuse reflectance measurements.

3

Nonequilibrium model on Archimedean lattices

100%

Lima F.

Open Physics

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2014

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vol. 12

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issue 3

185-191

EN

On (4, 6, 12) and (4, 82) Archimedean lattices, the critical properties of the majority-vote model are considered and studied using the Glauber transition rate proposed by Kwak et al. [Kwak et al., Phys. Rev. E, 75, 061110 (2007)] rather than the traditional majority-vote with noise [Oliveira, J. Stat. Phys. 66, 273 (1992)]. We obtain T c and the critical exponents for this Glauber rate from extensive Monte Carlo studies and finite size scaling. The calculated values of the critical temperatures and Binder cumulant are T c = 0.651(3) and U 4* = 0.612(5), and T c = 0.667(2) and U 4* = 0.613(5), for (4, 6, 12) and (4, 82) lattices respectively, while the exponent (ratios) β/ν, γ/ν and 1/ν are respectively: 0.105(8), 1.48(11) and 1.16(5) for (4, 6, 12); and 0.113(2), 1.60(4) and 0.84(6) for (4, 82) lattices. The usual Ising model and the majority-vote model on previously studied regular lattices or complex networks differ from our new results.

4

MCNP simulation of the dose distribution in liver cancer treatment for BNC therapy

100%

Krstic D., Jovanovic Z., Markovic V., Nikezic D., Urosevic V.

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EN

The Boron Neutron Capture Therapy (BNCT) is based on selective uptake of boron in tumour tissue compared to the surrounding normal tissue. Infusion of compounds with boron is followed by irradiation with neutrons. Neutron capture on 10B, which gives rise to an alpha particle and recoiled 7Li ion, enables the therapeutic dose to be delivered to tumour tissue while healthy tissue can be spared. Here, therapeutic abilities of BNCT were studied for possible treatment of liver cancer using thermal and epithermal neutron beam. For neutron transport MCNP software was used and doses in organs of interest in ORNL phantom were evaluated. Phantom organs were filled with voxels in order to obtain depth-dose distributions in them. The result suggests that BNCT using an epithermal neutron beam could be applied for liver cancer treatment.

5

Comparing heuristic methods’ performance for pure flow shop scheduling under certainand uncertain demand

89%

Nurprihatin F., Jayadi E. L., Tannady H., Nurprihatin F., Jayadi E. L., Tannady H.

Management and Production Engineering Review

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2020

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vol. 11

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issue 2

6

Simulation on the response of new phosphate glass RPC for γ-rays and e+/e− particles using GEANT3

88%

Jamil M., Rhee J., Jeon Y.

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vol. 6

|

issue 3

524-529

EN

The influence of phosphate glass electrode in the configuration of resistive plate chamber has been studied using GEANT3.21 Monte Carlo code. Bakelite electrodes were replaced by phosphate glass electrodes, as these glass materials have low bulk resistivity, are portable and easy to handle. These types of RPCs in their compact form of all materials are suitable for high rate background environment. We find that these new types of RPCs give little higher response to γ-rays and e+/e− particles, both for single-and double gap RPCs. The results of simulation are discussed.

7

Bayes-optimal solution to inverse halftoning based on statistical mechanics of the Q-Ising model

88%

Saika Y., Inoue J.-i., Tanaka H., Okada M.

Open Physics

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2009

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vol. 7

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issue 3

444-456

EN

On the basis of statistical mechanics of the Q-Ising model, we formulate the Bayesian inference to the problem of inverse halftoning, which is the inverse process of representing gray-scales in images by means of black and white dots. Using Monte Carlo simulations, we investigate statistical properties of the inverse process, especially, we reveal the condition of the Bayes-optimal solution for which the mean-square error takes its minimum. The numerical result is qualitatively confirmed by analysis of the infinite-range model. As demonstrations of our approach, we apply the method to retrieve a grayscale image, such as standard image Lena, from the halftoned version. We find that the Bayes-optimal solution gives a fine restored grayscale image which is very close to the original. In addition, based on statistical mechanics of the Q-Ising model, we are sucessful in constructing a practically useful method of inverse halftoning using the Bethe approximation.

8

Research on the EV charging load estimation and mode optimization methods

88%

Zhang Z., Dong K., Pang X., Zhao H., Wang A.

Archives of Electrical Engineering

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2019

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vol. 68

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issue 4

9

Observation probability estimation of dead-time models using Monte Carlo simulations

88%

Arkani M., Arkani M.

Metrology and Measurement Systems

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2021

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vol. 28

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issue 2

10

Influence of random character of reinforcement cover in bending elements

75%

Sieńkowska K., Buda-Ożóg L., Sieńkowska K., Buda-Ożóg L.

Archives of Civil Engineering

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2021

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vol. 67

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issue 4

11

Monte Carlo Study of the Interaction Volume Changes by the Beam Skirt in VP-SEM

75%

El Azzouzi M., Khouchaf L., Achahbar A.

Acta Physica Polonica A

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2017

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vol. 132

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issue 4

1393-1398

EN

In this work we present a new contribution for tracking the behavior of electron beam in gas and then in material placed in the chamber of a variable pressure scanning electron microscope using Monte Carlo simulation. Firstly our results for width and depth of interaction volume in high vacuum mode are compared and are consistent with those obtained by several relationships present in literature. Carbon and aluminum are considered as examples in order to establish the reliability of our approach and experimental data available from the literature. Then, we compared the evolution of width in both high (Re_{(HV)}) and low (Re_{(LV)}) vacuum modes with enlargement of skirt (R_{s}). The present work demonstrates that the best resolution conditions for energy, pressure and material, is given by R_{s}=Re_{(HV)}. Finally, the energy that must be used to get the best image resolution for given pressure and material is determined.

12

Evaluation of load values using the gumbel model

75%

Woliński S., Pytlowany T.

Archives of Civil Engineering

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2012

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issue 2

13

A High Performance Digital Time Interval Spectrometer: An Embedded, FPGA-Based System With Reduced Dead Time Behaviour

75%

Arkani M.

Metrology and Measurement Systems

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2015

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vol. 22

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issue 4

14

Analysis of Properties of an Active Linear Gesture Sensor

75%

Czuszyński K., Rumiński J., Wtorek J.

Metrology and Measurement Systems

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2017

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vol. 24

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issue 4

15

A nonlinear statistical approach for damping uncertainty propagation in structural dynamics

63%

Tiliouine B., Chemali B., Tiliouine B., Chemali B.

Archives of Civil Engineering

|

2016

|

issue 1

Refine search results

The dynamics of the surface layer of lipid membranes doped by vanadium complex: computer modeling and EPR studies

The Use of the Monte Carlo Method to Determine Optical Parameters of Tissue

Nonequilibrium model on Archimedean lattices

MCNP simulation of the dose distribution in liver cancer treatment for BNC therapy

Comparing heuristic methods’ performance for pure flow shop scheduling under certainand uncertain demand

Simulation on the response of new phosphate glass RPC for γ-rays and e+/e− particles using GEANT3

Bayes-optimal solution to inverse halftoning based on statistical mechanics of the Q-Ising model

Research on the EV charging load estimation and mode optimization methods

Observation probability estimation of dead-time models using Monte Carlo simulations

Influence of random character of reinforcement cover in bending elements

Monte Carlo Study of the Interaction Volume Changes by the Beam Skirt in VP-SEM

Evaluation of load values using the gumbel model

A High Performance Digital Time Interval Spectrometer: An Embedded, FPGA-Based System With Reduced Dead Time Behaviour

Analysis of Properties of an Active Linear Gesture Sensor

A nonlinear statistical approach for damping uncertainty propagation in structural dynamics