Results 91 to 100 of about 980 (262)

A hemispherical acoustic resonator for the measurement of the speed of sound in gases. [PDF]

open access: yes, 2000
A hemispherical acoustic resonator is described which was designed and constructed for the measurement of the speed of sound in gases, at pressures up to 40 MPa and at temperatures in the range from 300 K to 400 K.
Angerstein, JL
core  

Broadband Directional Thermal Radiation with Asymmetric Femtosecond Laser‐Processed Surfaces

open access: yesAdvanced Optical Materials, EarlyView.
Femtosecond laser processing is used to scalably create self‐organized angled microstructures which exhibit highly directional emissivity that occurs for all polarizations. Laser parameters are tuned to alter the surface features, control the direction of emission, and enhance the directional emissivity. Electromagnetic modeling is performed to analyze
Andrew Butler   +8 more
wiley   +1 more source

Spacer‐Less Substrate‐Integrated Metasurface for Near‐Unity Terahertz Absorption

open access: yesAdvanced Optical Materials, EarlyView.
ABSTRACT Although conventional metal‐insulator‐metal (MIM) terahertz (THz) absorbers can provide near‐unity absorption, their multilayer stacks inevitably introduce additional thickness, mass, and residual stress, which limit their compatibility with THz thermal sensing platforms.
Zihao Zhao   +6 more
wiley   +1 more source

Monolithic 3D-printed slotted hemisphere resonator bandpass filter with extended spurious-free stopband [PDF]

open access: yes, 2019
A method to effectively suppress the spurious modes in a hemispherical resonator is proposed and the suppression contributes to extension of the spurious-free stopband for the hemispherical-resonator-based bandpass filters.
Attallah, Moataz M.; id_orcid   +4 more
core   +1 more source

Estimation of permitivitty and loss tangent of high frequency materials in the millimeter wave band using a hemispherical open resonator

open access: yes, 2022
In this paper, a hemispherical open resonator is used to measure the quality factor and resonant frequency of various materials in the millimeter wave band.
Peter, M., Felbecker, R., Keusgen, W.
core   +1 more source

Dual‐Responsive Dynamic Covalent Bond‐Based Assembly of Lipid‐Nanozyme Systems via Multi‐Target Synergy and Efficient Target Enrichment for Ischemic Stroke Therapy

open access: yesAdvanced Science, EarlyView.
This system adopts a biomimetic phospholipid structure, covalently binding iNOS inhibitors, neuroprotective agent PCA and vitamin E derivatives through pH/ROS dual‐responsive bonds, and assembles them with Prussian blue nanozyme to form PBB@AHA. It can efficiently penetrate the blood‐brain barrier and simultaneously release multiple active components ...
Mengcheng Guo   +9 more
wiley   +1 more source

A Review on Catalytic Nanostructured Electrodes for Wearable and Implantable Abiotic Glucose Fuel Cells

open access: yesAdvanced Science, EarlyView.
This review identifies current and future directions in abiotic nanostructured catalysts to develop reliable and sustainable glucose fuel cells to power the next generation of bioelectronic devices. ABSTRACT The global rise in incidence of chronic diseases has led to the demand for innovative solutions that help patients manage their conditions with ...
Asghar Niyazi   +3 more
wiley   +1 more source

Mathematical analysis of a Hemispherical Resonator Gyroscope

open access: yes, 2022
A Hemispherical Resonator Gyroscope (HRG) is a gyroscope that uses vibrations to measure the orientation of a device based on the Coriolis effect. A mathematical model was confirmed so that a mathematical simulation could be made and used for a simulation of the HRG in operation.
openaire   +1 more source

Modeling of Acceleration Influence on Hemispherical Resonator Gyro Forcing System

open access: yes, 2020
Acceleration adds negative effect to Hemispherical Resonator Gyro (HRG) output; therefore, it is important to model the influence and then make necessary compensations, accordingly.
Boqi Xi   +3 more
core  

Divergent Roles of mGlu2 and mGlu3 Receptors in Amyloid‐β Production and Cognitive Dysfunctions in Alzheimer's Disease

open access: yesAdvanced Science, EarlyView.
This study explores the opposing effects of the mGluR2 and mGluR3 receptors on amyloid precursor protein processing. mGluR2 promotes amyloidogenic cleavage, while mGluR3 favors non‐amyloidogenic pathways. Using a brain‐penetrant nanobody as a mGluR2 positive allosteric modulator, the study uncovers how its chronic activation aggravates amyloid‐β burden
Pierre‐André Lafon   +21 more
wiley   +1 more source

Home - About - Disclaimer - Privacy