Results 71 to 80 of about 406,200 (298)

A Novel Bulk Acoustic Wave Resonator for Filters and Sensors Applications

Micromachines, 2015
Bulk acoustic wave (BAW) resonators are widely applied in filters and gravimetric sensors for physical or biochemical sensing. In this work, a new architecture of BAW resonator is demonstrated, which introduces a pair of reflection layers onto the top of
Zhixin Zhang, Ji Liang, Daihua Zhang, Wei Pang, Hao Zhang   +4 more
doaj   +1 more source

Evaluation of Dried Plasma Spot‐Based Quantification of Glial Fibrillary Acidic Protein as a Disease‐Associated Biomarker in Neuromyelitis Optica Spectrum Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate the diagnostic accuracy of glial fibrillary acidic protein (GFAP) measured in dried plasma spots versus conventional plasma‐ and serum‐GFAP testing for assessment of disease severity in aquaporin‐4 immunoglobulin G–positive neuromyelitis optica spectrum disorder (AQP4‐IgG+ NMOSD).
Felix Wohlrab, Evelyn Alvarez, Roua Hamdi, Bingqing Zhang, Hayeun Ji, Niyati Jhaveri, Patrick Schindler, Pedro Sanchez, Pia S. Sperber, Tanja Schmitz‐Hübsch, Frederike C. Oertel, Nisa Vorasoot, Najib Kissani, Falko Böhringer, Jens Kuhle, Anne‐Katrin Pröbstel, Xiao‐Jun Ma, Péter Körtvelyessy, Patrick Waters, Friedemann Paul   +19 more
wiley   +1 more source

White Matter and Perivascular Imaging Changes in Alzheimer's Disease and Cerebral Amyloid Angiopathy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Peak‐width of skeletonized mean diffusivity (PSMD) and diffusion tensor imaging–analysis along the perivascular space (DTI‐ALPS), reflecting white matter integrity and glymphatic function, are altered in Alzheimer's disease (AD).
Debina Laishram, Guangwei Du, Sangam Kanekar, Nandakumar Nagaraja   +3 more
wiley   +1 more source

Cylindrical Resonator Sectorally Filled With DNG Metamaterial and Excited by a Line Source [PDF]

, 2012
A circular cylindrical resonator with metallic walls is analyzed in the phasor domain. The resonator contains a wedge of double-negative (DNG) metamaterial that is anti-isorefractive to the double-positive (DPS) material filling the remaining volume of ...
Graglia, Roberto, Uslenghi, P.L.E., Uslenghi P. L. E., Lombardi, Guido, Daniele, Vito   +4 more
core   +1 more source

3D‐Printed Titanium Gyroid Scaffold Structure Integrated With Tough Hybrid Materials for Cartilage Replacement

Advanced Engineering Materials, EarlyView.
This study proposes a potential device design for joint cartilage replacement. Silica‐polytetrahydrofuran (SiO2‐PolyTHF) hybrids with customizable mechanical properties were developed to mimic the characteristics of a natural meniscus. These were synthesized through a two‐pot sol–gel hybrid process.
Yu‐Chien Lin, Gloria R. Young, Francesca Tallia, Reece N. Oosterbeek, Shaaz Ghouse, Edward Spiers, Nupur Kohli, Tom Briggs, Marc Masen, Siwei Li, Ren‐Jei Chung, Jonathan R. T. Jeffers, Julian R. Jones   +12 more
wiley   +1 more source

Miniature distributed filters for software re-configurable radio applications [PDF]

, 2002
Variable preselection filters will be an important component of any software re-configurable radio design. To be of practical use, such a filter should occupy a minimum of board area in any transceiver layout.
J. R. Macleod, Macleod, JR, T. Nesimoglu, P A. Warr, Nesimoglu, T, Warr, PA, Beach, MA, M. A. Beach   +7 more
core  

Compact microwave microstrip resonator bandpass filters for communication

, 2014
Electromagnetic spectrum is becoming increasingly congested due to the rapid development of wireless and mobile communication in recent decades. Compact passband filters with good performance are highly demanded in communication.
Ker Chia Lee (19116097)
core   +1 more source

Dielectric resonator filters for UMTS systems [PDF]

, 2008
Dielectric Resonator filters can provide high selectivity and low insertion loss similar to cavity filters but with smaller size and weight. They have long been used in satellite communication and more recently became of significant interest in ...
H. Piel, Knack, A., Piel, H., Mazierska, J., A. Knack, J. Mazierska   +5 more
core   +1 more source

Investigation of Resonance Characteristics of More Than 10 000 Metal‐Coated Silicon MEMS Cantilevers Using Machine Learning

Advanced Engineering Materials, EarlyView.
More than 10 000 metal‐coated silicon MEMS cantilevers are fabricated and characterized to build a large‐scale experimental dataset spanning multiple vibrational modes. Machine learning algorithms are benchmarked to predict resonance frequency and quality factor, with ensemble based models achieving accuracy approaching experimental uncertainty.
Sina Zare Pakzad, Saurabh Thorat, Andre Loch Gesing, Dominik Huber, Christopher Zellner, Patrick Egger, Georg Pfusterschmied, Ulrich Schmid, Michael Schneider   +8 more
wiley   +1 more source

A novel enlarging fractional bandwidth technique for acoustic‐wave‐lumped‐element resonator‐based bandpass filters

Electronics Letters
A novel enlarging fractional bandwidth (FBW) technique for acoustic‐wave‐lumped‐element resonator (AWLR)‐based bandpass filters is presented. The new technique is based on a series of matching inductors that replace the parallel or series acoustic wave ...
Xianli Tang, Yonghao Jia
doaj   +1 more source