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In vivo measurement of radiation dose during radiotherapy in breast cancer patients using MOSFET dosimeter

Lili Wang、Yu Tu、Juying Zhou 等 7 位作者2011-09-15Zhonghua fangshe zhongliuxue zazhi

Objective The purpose of the study was to observe and analysis the actual dosage of patients with breast cancer using metal oxide semiconductor field effect transistor (MOSFET) detector.Methods First, Phantom measurements were performed to investigate dose distribution in the area of the junction in a half-field match…

Luminescence Properties of Advanced MaterialsGaN-based semiconductor devices and materialsAdvanced Radiotherapy Techniques

Rotational inert-capacitive devices

И. П. Попов、Попов Игорь Павлович2011-09-15Vestnik of Samara State Technical University. Technical Sciences Series

Considered inert capacitive devices, made on the basis of electro-mechanical rotary converters. These include the charge-discharge device, based on an electric direct current machine, inert-capacitance device with capacitive properties with respect to the carrier frequency in the form of pulsating current machine and…

Industrial Engineering and TechnologiesElectric Power Systems and ControlAdvanced Materials and Semiconductor Technologies

Influence of the direction of rolling in the target material on its destruction under dynamic loads

Elena Tuch、Туч Елена Владимировна、М. Н. Кривошеина 等 6 位作者2011-09-15DOAJ (DOAJ: Directory of Open Access Journals)

In the work, the comparative analysis of elasticoplastic deformation and fracture of target materials with different directions of rolling relating to the direction of target loading was conducted. The dynamic loading of materials targets, characterized by the initial anisotropy of mechanical properties as the result o…

High-Velocity Impact and Material BehaviorGeotechnical and Geomechanical EngineeringMaterial Properties and Failure Mechanisms

Spectral dependence of the amplification factor in surface enhanced Raman scattering

Cristiano D’Andrea、Barbara Fazio、Alessia Irrera 等 7 位作者2011-09-15DOAJ (DOAJ: Directory of Open Access Journals)

Multi-wavelength SERS measurements on dyes molecules adsorbed on gold evaporated nanoparticles substrates are presented. The spectra are correlated with the Localized Surface Plasmon Resonance (LSPR) profile of the nanostructured substrate before and after the adsorption process. The enhancement of the typical vibrati…

Gold and Silver Nanoparticles Synthesis and ApplicationsSpectroscopy Techniques in Biomedical and Chemical ResearchPhotoacoustic and Ultrasonic Imaging

Fotosyntetické charakteristiky fytoplanktonu eutrofních vod

Blanka Tesařová2011-09-15Digital Repository (National Repository of Grey Literature)

Photosynthesis and primary production were estimated in fishpond phytoplankton during period 2008-2010 in Třeboň fishpond region, Czech Republic. Photosynthesis was measured by the oxygen method in computer-assisted light pipetting system Illuminova. Altogether 64 samples of fishpond phytoplankton and 11 cyanobacteria…

Wastewater Treatment and Nitrogen RemovalDiatoms and Algae ResearchWater Quality Monitoring and Analysis

Dopage de type p du ZnO

A. Marzouki2011-09-15Editions universitaires europeennes eBooks

L'objectif de cette these a ete l'etude du dopage p dans les couches minces et les nano-fils de ZnO, elabores par la technique MOCVD. Les echantillons ont ete caracterises par SIMS, MEB, TEM, RX, Raman, PL, effet Hall, I(V) et C(V). Les mesures electriques montrent que les couches dopees azote restent de type n meme a…

ZnO doping and properties

Srovnání leukokrátních granitoidů divergentních a konvergentních rozhraní

Renata Janoušková2011-09-15Digital Repository (National Repository of Grey Literature)

Granitoid belong to one of the most important rock type in the continental crust, especially in the orogenic belts. We classify them into several basic types, accrording to their mineral composition, petrographic and petrogenetic features, chemical composition and geotectonic environment of their origin. Genetically v…

Natural product bioactivities and synthesisPhytochemistry and Bioactive Compounds

Excitation of molecules by cold electrons

M. Šulc2011-09-15Digital Repository (National Repository of Grey Literature)

Title: Excitation of molecules by cold electrons Author: Miroslav Šulc Department / Institute: Institute of Theoretical Physics, Charles University in Prague Supervisor of the doctoral thesis: prof. RNDr. Jiří Horáček, DrSc., Institute of Theoretical Physics, Charles University Abstract: Several methods for low energy…

Advanced Chemical Physics StudiesAdvanced Electron Microscopy Techniques and ApplicationsElectron and X-Ray Spectroscopy Techniques

Critical behavior in dislocation systems: power-law relaxation below the yield stress

Péter Dusán Ispánovity2011-09-15arXiv (Cornell University)

Plasticity of two-dimensional discrete dislocation systems is studied. It is shown, that at some threshold stress level the response becomes stress-rate dependent. Below this stress level the stress-plastic strain relation exhibits power-law type behavior. In this regime the plastic strain rate induced by a constant e…

Microstructure and mechanical propertiesHydrogen embrittlement and corrosion behaviors in metalsHigh Temperature Alloys and Creep

PROBLEMS OF CALCULATION AND THE DESIGN OF BEARING STRUCTURES OF DIPLOMATIC BUILDINGS IN SEISMIC ZONES

А Д Разин、Разин Андрей Дионисович2011-09-15DOAJ (DOAJ: Directory of Open Access Journals)

In the results of researches carried out in the Peoples Friendship University of Russia, the main variants of structure systems and forms of diplomatic buildings in seismic zones are received.

Structural mechanics and materialsGeodetic Measurements and Engineering StructuresAdvanced Energy Technologies and Civil Engineering Innovations

The finite elements of a quadrilated shape for analysis of shells taking into consideration a displacement of a body with rigid body modes

Yu. V. Klochkov、Клочков Юрий Васильевич、А. П. Николаев 等 6 位作者2011-09-15DOAJ (DOAJ: Directory of Open Access Journals)

On the basis of a curvilinear quadrilated finite element the new mode of approximation of fields of displacements is realized, which essence consists that at a stage of approximation of interior magnitudes through nodal unknown of a finite element accept not separate components of a vector of displacement and their de…

Material Properties and ApplicationsStructural mechanics and materialsAdvanced Theoretical and Applied Studies in Material Sciences and Geometry

Field Methods 2011-09-12

Sean Martin、Jeremy Kuhn2011-09-15Faculty Digital Archive (New York University Florence)

Recording from field session on 9/14/2011.

Planetary Science and ExplorationBuilding materials and conservationEngineering and Material Science Research

Imobilizace biologicky aktivních látek v matrici vodorozpustného polymeru

Martina Hrabalíková2011-09-15OpenAlex

This thesis deals with immobilization of biologically active compounds, originating from whey, into matrix of water-soluble polymer for preparation of antimicrobial systems with applicability in food industry. A bacteriocine, nisin and lactic acid in combination with polyvinyl alcohol were studied for preparation of a…

biodegradable polymer synthesis and properties

Computer Modeling of Evolution of Liophobic Systems Structurization

Alexei Bormotov、И. А. Прошин、A V Vasilkov2011-09-15OpenAlex

The system of computer and imitating modeling of the composites, including techniques of realization of numerical and natural experiment, methods of modeling of structurization, algorithms and a complex of the programs is offered. The system allows establishing influence of the basic mix and technology factors on proc…

Process Optimization and IntegrationMaterial Properties and ApplicationsAdvanced Theoretical and Applied Studies in Material Sciences and Geometry

Human cornea modeling using artificial collagen

V I Bukanina、Буканина Виктория Игоревна、А. А. Хохлов 等 6 位作者2011-09-15Вестник Российского университета дружбы народов. Серия: Математика, информатика, физика

This article focuses on spectrophotometric analysis of thin films of synthetic collagen with subsequent use of the received data to recover the optical properties of collagen and modeling a multilayer optical structure similar to the properties of human cornea.

Collagen: Extraction and Characterization

Příprava a charakterizace antibakteriálních povrchů

Kateřina Sulovská2011-09-15OpenAlex

Submitted doctoral thesis is dealing with a preparation of active antibacterial surfaces based on a low-density polyethylene pre-processed in a low-temperature plasma. Such prearranged material were exposed to selected functionalization monomers' vapours and consequently immersed into prepared solutions of antibacteri…

Diatoms and Algae ResearchChemistry and Chemical EngineeringNanotechnology research and applications

Electron Scattering from Gold (Au) atom

Kapil Sharma、R P Vats、Neerja2011-09-15JOURNAL OF INTERNATIONAL ACADEMY OF PHYSICAL SCIENCES

Using Dirac equation, we have performed relativistic calculations for differential cross-sections and spin polarization parameters for scattering of electrons with Gold (Au) atoms with the energy range from 2.0 to 500.0 eV. The target-projectile interaction is represented by real and complex optical potentials. Gold i…

Advanced Chemical Physics StudiesAtomic and Molecular PhysicsElectron and X-Ray Spectroscopy Techniques