نتایج جستجو برای: Hysteresis loop Relaxation time

تعداد نتایج: 2057350  

2006

Appendix (Supplementary Material) Appendix A. Experimental quantification of the ratedependence of indentation hysteresis of individual chondrocytes Freshly isolated cells were probed with the nanosized and micron-sized tips at indentation rates of 200nm/s, 500nm/s, 1μm/s, 3μm/s, and 5μm/s. The area enclosed by the hysteresis loop (e.g., Fig. 6) is related to the strain energy dissipated during...

Ali Shabestani Monfared, Amerolah Mostafaadeh Hasan Kariminezhad Hosein Amani Mohammad Davoudi Mohammad Javad Alizadeh

Introduction: Gd (III) ion has been known to be the best metal ion in the periodic table that can be used as a T1 MRI contrast agent. Gadolinium have 7 unpaired electrons and these electrons can make magnetic area. No other metal ions possess unpaired electron more than this. CAs based on the element Gd are classified as “positive”, by opposition to “negative” CAs. Nowadays, G...

In this research, nanoparticles of La0.8Sr0.2MnO3 with mean crystallite size of 20 nm have been prepared by sol gel method. The sample has been characterized by X-Ray Diffraction (XRD) using Rietveld refinement, Field Emission Scanning Electron Microscope (FESEM) and Fourier Transform Infrared (FTIR) spectroscopy. The static magnetic properties such as saturation magnetization, effective magnet...

Journal: :journal of nanostructures 2015
a. rahdar m. aliahmad y. azizi

in the current paper,nanostructured nickel oxide (nio) were synthesized by co-precipitation method using nickel(ii) chloride hexahydrate (nicl2.6h2o) and sodium hydroxide (naoh) as starting material. structural, optical and magnetic properties of nanostructures were characterized by x-ray diffraction (xrd), scanning electron microscopy (sem), atomic force microscope (afm), uv–vis absorption; fo...

Journal: :Chemical communications 2011
Shi-Yuan Zhang Wei Shi Yanhua Lan Na Xu Xiao-Qing Zhao Annie K Powell Bin Zhao Peng Cheng Dai-Zheng Liao Shi-Ping Yan

Slow relaxation of the magnetization and hysteresis loop were observed in the antiferromagnetic ordered phase of a two-dimensional framework based on one-dimensional Co(II) magnetic chains.

Journal: :journal of nanostructures 2014
a. rahdar m. aliahmad y. azizi

the cu doped nio (nio:cu) nanoparticles were synthesized by co-precipitation method using nicl2.6h2o, cucl2.2h2o for ni and cu sources, respectively. sodium hydroxide has been used as a precipitator agent. effect of cu doping agent on the structural and optical properties of nanostructures were characterized by xrd, sem, afm, spectrophotometry, ftir and vsm techniques. xrd revealed that nio:cu ...

Journal: :Chemical communications 2010
Zuo-Xi Li Yong-Fei Zeng Hong Ma Xian-He Bu

A new 2D coordination polymer with an azide-bridged 1D homospin chain is synthesized, which shows slow magnetic relaxation and step hysteresis loop, and is ascribed to be a typical Ising-type single-chain magnet.

Journal: :Dalton transactions 2014
Gavin A Craig Jose Sánchez Costa Olivier Roubeau Simon J Teat Helena J Shepherd Manuel Lopes Gábor Molnár Azzedine Bousseksou Guillem Aromí

The thermal and photo-induced switching properties of the recently published molecular spin crossover complex [Fe(H4L)2](ClO4)2·H2O·2(CH3)2CO () have been investigated in detail through Raman spectroscopy. Magnetometric and single crystal X-ray diffraction kinetic studies within the hysteresis loop have proven its metastable character, which allowed establishing the shape of the true, quasi-sta...

Hysteresis loop curves are highly important for numerical simulations of materials deformation under cyclic loadings. The models mainly take account of only the tensile half of the stabilized cycle in hysteresis loop for identification of the constants which don’t vary with accumulation of plastic strain and strain range of the hysteresis loop. This approach may be quite erroneous particularly ...

Hysteresis motor is self-starting synchronous motor that uses the hysteresis characteristics of magnetic materials to make torque. There are different methods to model this kind of motor and take into account the magnetic hysteresis characteristic of the rotor hysteresis ring. In this investigation the application of complex permeability concept is implemented to model the hysteresis loop and t...

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