Results 111 to 120 of about 771,291 (252)

A Theoretical Investigation of the Input Characteristics of a Rectangular Cavity-Backed Slot Antenna [PDF]

open access: yes, 1975
Equations which represent the magnetic and electric stored energies are derived for an infinite section of rectangular waveguide and a rectangular cavity.
Cockrell, C. R.
core  

mmWave Double Cavity-Backed Slot Antenna featuring Electrically Small and Low-Profile

open access: yes, 2019
This paper describes a mmWave double cavity-backed slot antenna (CBSA) for mmWave frequencies. The proposed antenna achieves dual resonance at 28GHz and 38GHz.
Jaehyun Choi   +6 more
core   +1 more source

Phase‐Resolved Dual Control of Phenol Photodissociation at the Air–Water Interface From Structure‐Resolved Statistics

open access: yesAdvanced Science, EarlyView.
Faster phenol photolysis at the air–water interface arises from two cooperative factors: a more favorable initial microenvironment for solvent‐side electron stabilization, which lowers CI access, and a more labile hydrogen‐bond network, which more readily reorganizes to stabilize the dark‐state intermediate.
Qiang Yin   +8 more
wiley   +1 more source

Crossed-Slot Cavity-Backed Antenna with Improved Hemispherical Coverage

open access: yes, 2005
The paper presents the results of the investigation of the crossed-slot cavity-backed antenna with the complementary crossed electric dipoles added to compensate the circularly polarized (CP) radiation pattern degradation near the horizon. Dependences of
Breinbjerg, Olav   +2 more
core  

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

open access: yesAdvanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu   +10 more
wiley   +1 more source

LOW-PROFILE HELICAL ANTENNA WITH A CAVITYLOW-PROFILE HELICAL ANTENNA WITH A CAVITY [PDF]

open access: yes, 2014
This paper presents a low-profile cavity-backed helical element. The effects of the cavity diameterand height on the antenna characteristics are discussed. The frequency response of the antennacharacteristics is also revealed using frequencies within the
栗山 浩一
core  

Performance enhancement of cavity-backed UWB printed monopole antenna

open access: yes, 2017
The performance enhancement of ultra-wide band (UWB) printed monopole antenna for ground penetrating radar application is proposed based on a simple method using cavity.
Simorangkir, Roy B.V.B.   +3 more
core   +1 more source

Gestational Hypoxia Disrupts Medial Ganglionic Eminence Progenitor Dynamics and Interneuron Development in Schizophrenia

open access: yesAdvanced Science, EarlyView.
FES‐derived MGE spheroids exhibit progenitor‐stage alterations in developmental trajectory and hypoxia‐responsive transcriptional programs, followed by functional disruption. Gestational hypoxia recapitulates impaired progenitor proliferation, shortened cell‐cycle progression, interneuron developmental abnormalities, and schizophrenia‐like behaviors in
Peiyan Ni   +17 more
wiley   +1 more source

SANTANA- Smart Antenna Terminal Design [PDF]

open access: yes, 2005
This project is embedded in SANTANA (Smart Antenna Terminal) project. The project goal is to design a Ka-band circularly polarized antenna radiator for the receiver SANTANA system.
Liu, Ying, Ying, Liu
core  

Programmable Paracrine‐Mimetic Microneedle System for Temporal Regulation of Cardiac Repair

open access: yesAdvanced Science, EarlyView.
Temporal signaling is encoded into a programmable paracrine‐mimetic microneedle patch via tris(2,2'‐bipyridyl)dichlororuthenium(II) hexahydrate/sodium persulfate‐tuned hydrogel microparticles that deliver TGF‐β, IGF‐1, and VEGF over phase‐matched 7‐, 14‐, and 28‐day windows.
Yichen Dai   +18 more
wiley   +1 more source

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