Results 71 to 80 of about 44,645 (254)

Design and development of miniaturized filters using substrate integrated semicircular cavities [PDF]

open access: yes, 2010
A novel compact substrate-integrated semicircular cavity and miniaturized filters based on these resonators are presented. These band-pass filters are made up of two substrate integrated semicircular cavities, which couple to each other by an aperture on
ALONSO CORONA CHAVEZ   +1 more
core  

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

On Shifting Semicircular Roots

open access: yes, 2022
In the framework of continued fraction expansions of Stieltjes transforms, we consider shifting of semicircular laws. The continuous part of the associated measure admits a density function which is the quotient of semicircular one by a polynomial.
Yamagami, Shigeru, Yoshida, Hiroaki
core  

Application of new hybrid method in developing a new semicircular-weir discharge model

open access: yesAlexandria Engineering Journal, 2018
Circular weirs have been utilized as a flow-measuring device in open channel hydraulics. Since the corresponding theoretical equation for computing discharge is not adequately suited for practical purposes due to its complexity, empirical models are ...
Majid Niazkar, Seied Hosein Afzali
doaj   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

open access: yesAdvanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao   +8 more
wiley   +1 more source

Dehiscence of the posterior and superior semicircular canal presenting in pregnancy

open access: yesB-ENT, 2013
Dehiscence of the posterior and superior semicircular canal presenting in pregnancy. Objective: We present an interesting case of superior and posterior semicircular canal dehiscence in pregnancy.
T. Meehan   +5 more
doaj   +2 more sources

Al3+/Ta5+ Co‐Doping Promotes Homogeneous Li+ Transport Enabling High Performance Ni‐Rich Layered Oxide Cathodes

open access: yesAdvanced Functional Materials, EarlyView.
Al3+/Ta5+ co‐doping refines the primary particles of LiNiO2, reduces Li/Ni antisite disorder, and expands the c‐axis lattice parameter, thereby enabling faster and more homogeneous Li+ transport. Such rapid and homogeneous Li+ transport suppresses high‐voltage phase transitions and microcrack formation, ultimately improving the rate capability and long‐
Yanhao Ren   +11 more
wiley   +1 more source

Tenzel Semicircular Flap

open access: yes, 2016
The Tenzel semicircular flap was first described by Dr. Richard Tenzel in 1975. The semicircular flap is useful for reconstruction of central lower eyelid defects. The Reverse Tenzel semicircular flap is performed for central upper eyelid defects.
Steven Ovadia   +3 more
core   +1 more source

Defect‐Free Transfer Principles for Scalable, Thin Garnet‐Based Hybrid Solid Electrolytes in Solid‐State Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Defect‐free transfer principles enable scalable fabrication of 15 µm‐thin garnet‐based hybrid solid electrolytes. Hansen solubility parameters correlate interfacial compatibility with coating, transfer, and impregnation behavior, guiding rational selection of slurry/substrate, binder/substrate, and binder/polymer electrolyte combinations.
Seul Gi Chu   +8 more
wiley   +1 more source

Temporal bone pneumatization and tegmen tympani defects in superior semicircular canal dehiscence: are they related to middle cranial fossa depth?

open access: yesFolia Morphologica
BACKGROUND: To investigate the relationship between superior semicircular canal dehiscence and tegmen defects, temporal bone pneumatization, and middle cranial fossa depth.
Pinar Cakmak, Vefa Cakmak
doaj   +1 more source

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