Results 41 to 50 of about 739,905 (293)
Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park +5 more
wiley +1 more source
Low-Cost Transceiver Architectures for 60 GHz Ultra Wideband WLANs
International Journal of Digital Multimedia Broadcasting, 2009 Millimeter-wave multiport transceiver architectures dedicated to 60 GHz UWB short-range communications are proposed in this paper. Multi-port circuits based on 90° hybrid couplers are intensively used for phased antenna array, millimeter-wave modulation ...
S. O. Tatu, E. Moldovan, S. Affes
doaj +1 more source
A Compact Wideband Crossover Coupler with Lumped Elements [PDF]
Journal of the Korean Institute of Electromagnetic Engineering and Science, 2019 A compact wideband crossover coupler with fully lumped elements is presented. To achieve a wideband operation, a three-section branch-line structure is employed for the crossover coupler.
Kwangwon Park +4 more
doaj +1 more source
Global Rather Than Vertical‐Selective Saccadic Abnormalities in Progressive Supranuclear Palsy
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Duy Duan Nguyen +6 more
wiley +1 more source
Equivalent Circuits for Microwave Metamaterial Planar Components
SensorsMetamaterial components and antennas are based on the general understanding that an artificial structure composed of adequately designed and manufactured elementary cells or arrays has unusual resonance and propagation properties.
Romolo Marcelli
doaj +1 more source
Arrayed waveguide lens for beam steering
Nanophotonics, 2022 Integrated planar lenses are critical components for analog optical information processing that enable a wide range of applications including beam steering.
Honari-Latifpour Mostafa +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Despite benefits to storage stability and handleability of aluminum scrap, octadecyl phosphonic acid (ODPA) SAMs reduce the tensile strength of wires produced using friction‐induced recycling. Etching and methyl diphosphonic acid (MDPA) coatings, however, have little effect.
Timothy D. Goller +3 more
wiley +1 more source
Novel Two-Dimensional (2-D) Defected Ground Array for Planar Circuits
Active and Passive Electronic Components, 2004 This paper presents a novel two-dimensional (2-D) defected ground array (DGA) for planar circuits, which has horizontal and vertical periodicities of defect structure.
Haiwen Liu, Xiaowei Sun, Zhengfan Li
doaj +1 more source
Rotary 3D Printing With Integrated Electroplating
Advanced Engineering Materials, EarlyView.A rotary material extrusion platform integrates localized copper electroplating with printing and encapsulation to fabricate cylindrical polymer–metal structures containing fully embedded, low‐resistance conductive pathways that enable internal Joule heating and thermally activated shape‐memory responses.
Antonio Zagaria +5 more
wiley +1 more source
Planar resonance circuits for identity documents or banknotes authentication
, 2019 This paper deals with the design and realization of planar resonant circuits, which are part of a system designed to verify the authenticity of identity documents or banknotes. Validation or authentication is performed based on the evaluation of resonant
Smítka, Václav +7 more
core +1 more source