نتایج جستجو برای: materials preparation

تعداد نتایج: 594351  

Journal: :Chemical communications 2009
Zhi-Quan Tian Zhi-Ling Zhang Jinhao Gao Bi-Hai Huang Hai-Yan Xie Min Xie Héctor D Abruña Dai-Wen Pang

We have developed a convenient strategy for preparing color-tunable fluorescent-magnetic core/shell multifunctional nanocrystals, which exhibit excellent photoluminescence (PL) properties (fluorescing tunably from 550 nm to 630 nm by modifying the shell thickness) and ferromagnetic material properties (a magnetization of 4.4 emu g(-1) and a coercivity of 95 Oe).

2010
Setareh Gorji Ghalamestani Lieven Vandevelde Joris J. J. Dirckx Jan A. A. Melkebeek

Magnetic noise in electrical machines and transformers are a large portion of the total noise of the device. Part of this magnetic noise is caused by the deformation of the ferromagnetic laminations due to the magnetic field. This effect is called magnetostriction, and it strongly depends on the applied magnetic field, the material properties and external pressure to the material. A strain gaug...

2017
Chiara Bigi Pranab K. Das Davide Benedetti Federico Salvador Damjan Krizmancic Rudi Sergo Andrea Martin Giancarlo Panaccione Giorgio Rossi Jun Fujii Ivana Vobornik

Complete photoemission experiments, enabling measurement of the full quantum set of the photoelectron final state, are in high demand for studying materials and nanostructures whose properties are determined by strong electron and spin correlations. Here the implementation of the new spin polarimeter VESPA (Very Efficient Spin Polarization Analysis) at the APE-NFFA beamline at Elettra is report...

2015
Sennosuke Takahashi Ryohei Motegi

The objective of this study is to obtain the propagation velocity of an elastic wave in a loaded isotropic solid and to show the usefulness of the third-order elastic constant in determining properties of practical materials. As is well known, the infinitesimal elastic theory is unable to express the influence of stress on elastic wave propagating in loaded materials. To solve this problem, the...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2013
Jie Cui Jiangping Xu Yutian Zhu Wei Jiang

Self-assembled polymeric aggregates are generally polydisperse in morphology due to the existence of many metastable states in the system. This shortcoming becomes a bottleneck for preparing high quality self-assembled polymeric materials. An important concern is the possibility of controlling morphological polydispersity through the modulation of the metastable states. In this study, both simu...

Journal: :Jikken dobutsu. Experimental animals 1991
Y Kodama T Sakai K Naitoh T Maki S Horiuchi

To know the conditions of contamination by the chemicals in the experimental animal diets, the contents of nitrosodimethylamine (NDMA) were analyzed in the diets for mice and rats. The raw materials of the diets were also analyzed. In addition, NDMA levels were determined in the diets which were stored long or heated in the autoclaves. The averages of NDMA in these diets were less than 10 ppb. ...

Journal: :Acta poloniae pharmaceutica 2017
Olga V Sermukhamedova Zuriyadda B Sakipova Inna I Ternynko Nadezhda G Gemedzhieva

The review deals with analysis and classification of literature data on phamacognostic study (botanical characteristics, geographical distribution, chemical composition and use in medicine) of species of Motherwort genus (Leonums L.). The review unveils opportunities for comprehensive study and development of approaches to the standardization of raw materials of Turkistan motherwort (L. turkest...

Journal: :Science 2013
Jean-François Lutz Makoto Ouchi David R Liu Mitsuo Sawamoto

Sequence-controlled polymers are macromolecules in which monomer units of different chemical nature are arranged in an ordered fashion. The most prominent examples are biological and have been studied and used primarily by molecular biologists and biochemists. However, recent progress in protein- and DNA-based nanotechnologies has shown the relevance of sequence-controlled polymers to nonbiolog...

2016
Philipp Good Thomas Cooper Marco Querci Nicolay Wiik Gianluca Ambrosetti Aldo Steinfeld

The spectral specular reflectance of conventional and novel reflective materials for solar concentrators is measured with an acceptance angle of 17.5 mrad over the wavelength range 300-2500 nm at incidence angles 15-60° using a spectroscopic goniometry system. The same experimental setup is used to determine the spectral narrow-angle transmittance of semi-transparent materials for solar collect...

Journal: :Science 2002
T C Harman P J Taylor M P Walsh B E LaForge

PbSeTe-based quantum dot superlattice structures grown by molecular beam epitaxy have been investigated for applications in thermoelectrics. We demonstrate improved cooling values relative to the conventional bulk (Bi,Sb)2(Se,Te)3 thermoelectric materials using a n-type film in a one-leg thermoelectric device test setup, which cooled the cold junction 43.7 K below the room temperature hot junct...

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