, 2014 As the magnitude of vertical whole-body vibration increases, the resonance frequency in the apparent mass of the human body reduces and there are changes in the frequency-dependence of acceleration equivalent comfort contours.
Zhou, Zhen
core
Ultra-low frequency photocurrent self-oscillation in strained InxGa1-xAs quantum well diodes
, 2007 Ultra-low frequency photocurrent (PC) self-oscillation has been investigated in a In0.15Ga0.85As/Al0.15Ga0.85As quantum-well (QW) diode in details as a function of temperature, excitation power and wavelength.
Sano, N, Tanigawa, K, Fujiwara, Kenzo
core +1 more source
A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments
Advanced Materials, EarlyView.The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal +14 more
wiley +1 more source
Denoising of neuronal signal from mixed systemic low-frequency oscillation using peripheral measurement as noise regressor in near-infrared imaging. [PDF]
Neurophotonics, 2019 Sutoko S +12 more
europepmc +1 more source
Low-frequency oscillatory stability study on 500 kV Java-Indonesian electric grid
, 2018 © 2018 IEEE. The Java-Indonesia 500 kV network is the biggest interconnected system in Indonesia. This system extends from the western part of Java Island to eastern part with a distance of approximately 1000 km.
Md Rakibuzzaman Shah (9833939) +3 more
core
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced Materials, EarlyView.The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades +7 more
wiley +1 more source
机车电传动, 2017 The low-frequency oscillation phenomenon had been frequently occurred in China electrified railways, which caused the traction locked of the train and the protection tripped of power supply system as well as other accidents.
TAO Yan
doaj
A motion sickness maximum around the 0.2 Hz frequency range of horizontal translational oscillation
, 2001 Background: Low frequency translational oscillation can provoke motion sickness in land vehicles, ships and aircraft. Although controlled motion experiments indicate a progressive increase in nauseogenicity as frequency decreases toward 0.2 Hz, few data ...
Mueller, A.G. +2 more
core
Mechanically Programmable DNA Hydrogel Microparticles for 3D Cellular Systems
Advanced Materials, EarlyView.DNA hydrogel microparticles are designed to exhibit controllable viscoelasticity and stiffness across three orders of magnitude from 30Pa$30 \,\mathrm{Pa}$ to 6.5kPa$6.5 \,\mathrm{kPa}$. They are uptaken into fibroblast spheroids where they are actively remodeled by cellular forces depending on their mechanical properties.
Tobias Walther +9 more
wiley +1 more source
Low frequency oscillation suppression strategy based on virtual power system stabilizer
Although renewable energy sources controlled by virtual synchronous generator (VSG) could enhance the inertia and frequency stability of the power grid, they may inherit the low-frequency oscillation problem similar to synchronous generator.
Yang, Junyou +6 more
core +1 more source