Results 131 to 140 of about 139,680 (346)

Localized Single-Voxel Magnetic Resonance Spectroscopy, Water Suppression, and Novel Approaches for Ultrashort Echo-time Measurements

Single-voxel proton MRS can be obtained with inversion-based, echo-based, and hybrid methods. Yet, standard localization methods do not guarantee quality.
Xin, L., Gruetter, R., Lei, H., Mlynarik, V.   +3 more
core   +1 more source

Spin pumping in ferromagnet-topological insulator-ferromagnetheterostructures

, 2015
Topological insulators (TIs) are enticing prospects for the future of spintronics due to their large spin-orbit coupling and dissipationless, counter-propagating conduction channels in the surface state.
Baker, A. A., Collins-Mcintyre, Liam, van der Laan, G., Hesjedal, Thorsten, Figueroa, A. I., Collins-Mcintyre, L. J., Baker, Alexander, Hesjedal, T., Figueroa, A.I.   +8 more
core   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

Advanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang, Zhewen Xu, Yuwen Xu, Björn Josteinsson, Simon Josephy, Dawei Zhang, Yunlong Sun, Heung‐Sik Park, Jihun Kim, Kanghyun Chu, Kyung Song, Danyang Wang, Chan‐Ho Yang, Andrea Morales, Jan Seidel   +14 more
wiley   +1 more source

Resonant harmonic elimination pulse width modulation‐based high‐frequency resonance suppression of high‐speed railways [PDF]

, 2015
Hengbin Cui, Wensheng Song, Hui Fang, Xinglai Ge, Xiaoyun Feng   +4 more
openalex   +1 more source

Self‐Adaptive Anhydrous Passivation Mitigates Open‐Circuit Voltage Loss in Pb‐Sn Mixed Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
In this report, a self‐adaptive anhydrous passivation strategy is introduced by incorporating trimellitic anhydride (TMAH) into the perovskite precursor. In situ hydrolysis of TMAH yields trimellitic acid (TMA); ‐C═O/‐COO− groups of TMAH/TMA form a chelate with undercoordinated Pb2+/Sn2+, regulate nucleation, promote (100) orientation, passivate ...
Md. Ataur Rahman, Md. Abdul Karim, Md. Emrul Kayesh, Siliang Cao, Shamim Ahmmed, Kiyoto Matsuishi, Ashraful Islam   +6 more
wiley   +1 more source

Robot-assisted image-guided transcranial magnetic stimulation for somatotopic mapping of the motor cortex: a clinical pilot study.

, 2009
Shape and exact location of motor cortical areas varies among individuals. The exact knowledge of these locations is crucial for planning of neurosurgical procedures.
Paulus, Walter J., Paulus, W, Schweikard, Achim, Giese, A, Fadini, T, Schweikard, A, Bockermann, Volker, Bockermann, V, Achim Schweikard, Finke, Markus, Markus Finke, Tommaso Fadini, Kai Kallenberg, Walter Paulus, Alf Giese, Siemerkus, J, Jakob Siemerkus, Volker Bockermann, Rohde, Veit, Kallenberg, Kai, Veit Rohde, Kantelhardt, SR, Rohde, V, Sven Rainer Kantelhardt, Matthaeus, Lars, Matthaeus, L, Kantelhardt, Sven Rainer, Lars Matthaeus, Fadini, Tommaso, Siemerkus, Jakob, Giese, Alf, Finke, M, Kallenberg, K   +32 more
core   +1 more source

Engineering Pendant Group Chemistry to Control Hydrophilicity and Oxidative Degradation of Thioketal‐Based Biomaterials

Advanced Functional Materials, EarlyView.
Thioketal (TK) polymers are promising biomaterials due to their selective biodegradation by reactive oxygen species (ROS), but they respond slowly to physiologic doses of ROS. Here, the TK bond's pendant groups are modified to enhance the degradation of TK‐based implants both in vitro and in vivo.
Karina A. Bruce, Dylan W. Marques, Alan J. Fullenkamp, Emma‐Louise Lowell, Rais B. Fataki, Jake D. Ryan, John R. Martin   +6 more
wiley   +1 more source

Strong suppression of spin generation at a Fano resonance in a semiconductor nanostructure

, 2012
We observe remarkable, complete suppression of spin generation under optical excitation in a thin InAs/GaAs wetting layer close to the light-hole excitonic resonance, leading to zero electron spin polarization as monitored by adjacent InAs quantum dots ...
Sernelius, Bo E.,, Tu, C. W.,, Chen, Weimin,, Suraprapapich, S,, Beyer, Jan,, Buyanova, Irina,   +5 more
core  

Investigation and Suppression of Common-mode Resonance in High-power Transformerless Current-source Drives Systems

, 2016
Among high-power pulse-width modulation (PWM) current-source motor drives, the transformerless structure using the integrated dc choke to attenuate the common-mode (CM) voltage has been widely used due to the advantages of lower weight and costs without ...
Lian, Yujuan
core   +1 more source

Critical Damping Design and Vibration Suppression Research of Elastic Beam Coupled with Fractional-Order Inerter-Based Dampers

Buildings
This article focuses on the study of elastic beams with fractional-order inertial damping structures at both ends, with the aim of exploring their dynamic characteristics, damping effects, and parameter selection rules in depth, providing theoretical and
Yandong Chen, Ning Chen
doaj   +1 more source