The amplitude of that bias field is determined by the geometric characteristics and the magnetic state of the hard phase. Furthermore, a near linear MI behavior with high sensitivity was realized around zero operation field point, with the advantage of not employing Selleckchem JNJ-26481585 external biasing fields and additional coils. This makes biphase microwires exhibiting self-bias and asymmetric MI very attractive as sensing elements in magnetic-field sensor devices and materials.”
“The optical absorption of Au quantum dots (QDs) was studied by applying the
photoacoustic (PA) spectroscopic technique, which is useful for optically opaque samples. The characteristic bands of Au QDs were observed at around 2.4 eV for electrodes consisting of 15 nm TiO2 nanoparticles and at around 2.3 eV for those consisting of 37 nm ones, which correspond to the characteristic surface plasmon resonance bands in the visible region. The electrode thickness dependence of the PA signal intensity around the characteristic band showed a tendency toward saturation in both cases. There was
a great difference PD98059 in vivo in the saturation characteristics of the PA signal intensity between the electrodes made with different sized TiO2 nanoparticles, even though the preparation conditions for the Au QDs were the same. The saturation time for electrodes made with 37 nm TiO2 nanoparticles was shorter MK-8776 clinical trial than those made with 15 nm particles, indicating that the penetration of the QDs into the electrodes made with 37 nm nanoparticles was less than those made with 15 nm nanoparticles, although the porous area observed was high. Also, the PA signal intensity around the peak of electrodes with 15 nm nanoparticles is larger than that with 37 nm ones, indicating a higher adsorption rate for the smaller nanoparticles due to the lower surface activation energy of larger nanoparticles. There was no photoelectrochemical current response although the characteristic optical absorption bands of the Au QDs were observed by surface plasmon resonance.”
“We
agree with the comment made by Hermet on our recent paper [J. Appl. Phys. 103, 083712 (2008)] regarding the zone-center phonon modes in multiferroic bulk BiFeO3. In this reply we show that our correctly assigned modes are in agreement with their results.”
“The origins of evidence-based medicine as understood today are traceable to 1972 and the publication of Archie Cochrane’s book Effectiveness and Efficiency: Random Reflections on Health Services. This book attempted to bridge the divide between scientific medicine and clinical judgment that had developed since the mid-19th century. Its genesis was stimulated by Cochrane’s experiences as a prisoner-of-war medical officer and of the demands placed after the 1939-1945 war on the UK National Health Service.