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Nonlinear resonance behaviour and shell property estimates from individual microbubbles in the 4-13 MHz range assessed with low amplitude acoustic spectroscopy

Brandon Helfield、David E. Goertz2012-10-01OpenAlex

There is an increasing interest in contrast applications in the 5-15 MHz range. In order to improve image quality and agent design, a greater understanding of microbubble behaviour in this frequency range is required. In this study, individual lipid encapsulated microbubbles (Definity and Target-Ready MicroMarker) wer…

Ultrasound and Hyperthermia ApplicationsUltrasound and Cavitation PhenomenaPhotoacoustic and Ultrasonic Imaging

Surface Modification of the Light-Storing Pigment by Titanate Coupling Agent and its Application on Print Ink

Li Yong Jiao、Yu Bin Zheng、Ya Jun Liu 等 5 位作者2012-10-01Applied Mechanics and Materials

A titanate coupling agent, TM-27, was used in surface modification of light-storing pigment to improve its compatibility and stability with the organic system. The surface characteristics of light-storing pigments were reflected by Fourier transform infrared spectroscopy (FT-IR) and scanning electron micrograph (SEM).…

Advanced Sensor and Energy Harvesting MaterialsSilicone and Siloxane ChemistryPigment Synthesis and Properties

Extinction spectra and near-field enhancement of metallic nanoparticles

Titus Sandu、George Boldeiu2012-10-01OpenAlex

Extinction spectra and near-field enhancement of metallic nanoparticles are calculated with a boundary integral equation (BIE) method. With the BIE method the far-field response and the near-field evanescent coupling are expressed as an eigenmode sum of resonant terms. In particular, the near-field enhancement around…

Plasmonic and Surface Plasmon ResearchOptical Coatings and GratingsNear-Field Optical Microscopy

Experimental Research on the Flax/PP Thermoplastic Composite Material Hot Pressing Process

Tao Yan2012-10-01Advanced materials research

Flax yarn and PP filament can be made into flax/ pp lapping yarn. Weaving with the lapping yarn, and finally can crank the fabric into PP/ flax composite by hot pressing. Research on the thickness of composite material and the peeling properties of the composite material, we analyzed the correlative factors about the…

Natural Fiber Reinforced CompositesElectromagnetic wave absorption materialsTextile materials and evaluations

Influence of pH on the Electrochemical Bahavior of 00Cr15Ni7Mo2Cu2 Supermartensitic Stainless Steel in 3.5% NaCl Solutions

Jia Qun Rui、Jun Li、Hu Sun 等 8 位作者2012-10-01Advanced materials research

This objective is to study the influence of pH on the electrochemical behavior of 00Cr15Ni7Mo2Cu2 supermartensitic stainless steel in 3.5% NaCl solutions using potentiondynamic polarization technique, open circuit potential tests and electrochemical impedance spectroscopy (EIS).The study reveals that the pitting poten…

Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsWelding Techniques and Residual Stresses

Supramolecular Assembly of Functional Cholesteryl Substituted Luminol Derivative in Organized Molecular Films

Jingxin Zhou、Tifeng Jiao、Adan Li 等 4 位作者2012-10-01Advanced materials research

Functional luminol derivative with cholesteryl substituted group has been designed and synthesized from the reaction of the corresponding precursor cholesteryl chloroformate with luminol. This compound can be spread on water surface to form stable monolayer. It has been found that UV and IR spectra confirmed the chara…

Liquid Crystal Research AdvancementsPorphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent Materials

Complementary periodic diffracting metallic nanohole and nanodipole arrays in the mid-infrared range

Yong‐Hong Ye、Jiayu Zhang、Hui Feng 等 5 位作者2012-10-01Journal of Applied Physics

Metallic nanohole arrays and metallic nanodipole arrays are fabricated and experimentally characterized. A complementary response is observed in both transmission and reflection. For the metallic nanohole arrays, a peak (dip) in transmission (reflection) is observed at resonance whereas the metallic nanodipole arrays…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchThermal Radiation and Cooling Technologies

Data-oriented research for bioresource utilization: A case study to investigate water uptake in cellulose using Principal Components

Ling Liu、Carlos Driemeier、Roberto M. César2012-10-01OpenAlex

Bioresource utilization represents an important interdisciplinary research that integrates academic and industrial expertise across diverse scientific domains, including physics, chemistry, biology, and engineering. The present paper describes a cyber-infrastructure being created at the Brazilian Bioethanol Science an…

Biofuel production and bioconversionAdvanced Cellulose Research StudiesSugarcane Cultivation and Processing

Research on APM device for liquid dielectric constant sensing

Yao Min、Chen Zhijun、Zhao Min 等 4 位作者2012-10-01OpenAlex

Compare to SAW (surface acoustic wave) device, APM (acoustic plate mode wave) device is more suitable for liquid sensing. In this paper, the theoretical model of APM device loaded with non-viscous liquid is built using the propagation characteristics of acoustic wave in laminated mediums. It's proved the influence of…

Ferroelectric and Piezoelectric MaterialsGas Sensing Nanomaterials and SensorsAcoustic Wave Resonator Technologies

Ballistic electron propagation in a composite metamaterial

A.-C. Dumitriu、Daniela Dragoman2012-10-01OpenAlex

The main purpose of this paper is to underline the property of periodic structures consisting of layers with imaginary wavenumbers for ballistic electrons to allow charge carrier propagation in certain energy bands. Such periodic structures are analogous to composite optical metamaterials. In addition, we compare the…

Metamaterials and Metasurfaces ApplicationsTerahertz technology and applicationsQuantum optics and atomic interactions

Dielectric properties of Ni-BaTiO3-PVDF composites with different Ni morphology

Qi Zheng、Pengli Zhu、Yanmin Wu 等 5 位作者2012-10-01OpenAlex

In this article, Ni particles with different morphologies including spherical Ni and fibrous Ni particles had been synthesized by co-precipitation and e polyol methods, respectively‥ As such, a three-phase percolative composites containing Ni as the conductive phase with different morphologies, BaTiO3as the ceramic ph…

Advanced Sensor and Energy Harvesting MaterialsElectromagnetic wave absorption materialsDielectric materials and actuators

Evaluating nano composites for high voltage applications

G. Iyer、R.S. Gorur、A. Krivda2012-10-01OpenAlex

A thermal model developed in this paper provides a plausible explanation to the improved corona resistance performance of nanocomposites. The model calculates the localized temperatures for different filler concentrations. Lower localized temperatures are achieved even at low nanofiller concentrations due to well disp…

Polymer Nanocomposites and PropertiesHigh voltage insulation and dielectric phenomenaDielectric materials and actuators

The Analysis of Fe Synthesis Catalyst Influence Factors in Material Engineering

Dong Zhao、Xue Peng Liu2012-10-01Advanced materials research

for the problem of the heterotopy particle during the Fe catalyst material manufacturing,the influence fact of hemorphology and size distribution of the catalyst is analyzed by cold numerical simulation and pilot test. It includes that the morphology of catalyst particle, the catalyst-synthesis recipe, solvent system…

Catalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization Studies

Detent force reduction of a tubular linear drive by using a genetic algorithm and FEM - verification of simulation results

Sebastian Gruber、Ralf Wegener、Stefan Soter2012-10-01OpenAlex

In order to meet industrial safety standards in eccentric presses, the detent force caused by the reluctance change between permanent magnet (PM) and stator teeth of the acting high force tubular permanent magnet linear synchronous machines (PMLSM) should be reduced. The detent force is generated by two components: th…

Electric Motor Design and AnalysisMagnetic Properties and ApplicationsMagnetic Bearings and Levitation Dynamics

Local structural disorder in Zn0.9Co0.1O nanocrystals studied using neutron total scattering analysis

I.-K. Jeong、Seunghun Lee、A. Llobet2012-10-01Journal of Applied Physics

Neutron total scattering measurements were performed at 300 K and 15 K to study local structural disorder in deuterium plasma treated and as-prepared Zn0.9Co0.1O nanocrystalline powder. We found that static disorder becomes a determining factor for atomic pair correlations on the length scale larger than r∼9Å. On the…

ZnO doping and propertiesCopper-based nanomaterials and applicationsGa2O3 and related materials

Preparation of organic chelating agents modified bentonite for mixed contaminant removal from aqueous solutions

Yin‐Xia Sun、Zongli Ren、Yaqing Li2012-10-01OpenAlex

Natural Na-bentonites were modified with an organic chelating agent, sodium diethyldithiocarbamatre (DDTC), to prepare a new adsorbent (DDTC-bentonite) for mixed contaminant (Cu2+, Cd2+and phenol) removal. The optimal conditions for preparation the DDTC-bentonite were investigated. Moreover, the DDTC-bentonite showed…

Soil and Unsaturated FlowClay minerals and soil interactions

Synthesis, Photochromism and Optical Recording Properties of a Diarylethene Materials Bearing an Isoxazole Unit

Xiao Ting Li、Hui Li、Gang Liu2012-10-01Advanced materials research

A new unsymmetrical photochromic diarylethene, 1-(3,5-dimethyl-4-isoxazolyl)-2-[2-methyl-5-(4-formylphenyl)-3- thienyl]perfluorocyclopentene(1a) were synthesized, and its properties, such as photochromism and fluorescence properties, were investigated in detail. The results showed that this compound had good thermal s…

Photochromic and Fluorescence ChemistryPhotoreceptor and optogenetics researchPolydiacetylene-based materials and applications

Electrochemical characterization of electro-active Polymer-carbon nanocomposites

A. Pruteanu、A. Niagu、Silviu Ursache 等 4 位作者2012-10-01OpenAlex

Conductive polymers presents a new and diverse range of chemical and electrochemical properties. These new properties have allowed their use in a wide range of applications such as electrical energy storage devices (e.g. supercapacitors). This paper presents a characterization of electrochemical behaviour of electro-a…

Supercapacitor Materials and FabricationElectrochemical sensors and biosensorsConducting polymers and applications

Design of a sparse sub-array for focused ultrasound surgery of large tumors

Hotaik Lee、Mun‐Bo Shim、Minsu Ahn 等 5 位作者2012-10-01OpenAlex

High Intensity Focused Ultrasound (HIFU) has gained considerable interest for clinical applications in recent decades due to its noninvasive characteristics. However current HIFU systems have limitations due to treatment times. Specifically it takes about two to three hours for the treatment of large tumors such as ut…

Ultrasound Imaging and ElastographyUltrasound and Hyperthermia ApplicationsUltrasound and Cavitation Phenomena

Mold Electromagnetic Stirring for Horizontal Continuous Casting of CuCrZr Alloys with Composite Properties

Hua Qing Li、Zhong Weio Hu、Dao Wun Deng 等 6 位作者2012-10-01Advanced materials research

The authors investigated the mold electromagnetic stirring technology of horizontal continuous casting for CuCrZr alloys. Due to the oxidizability of the zirconium, the CuCrZr alloys are difficult to produce by continuous casting process. A short process for CuCrZr alloys material engineering is urgently needed. The m…

Metallurgy and Material FormingMetallurgy and Material Science