Results 71 to 80 of about 57,568 (302)
Electroactive Metal–Organic Frameworks for Electrocatalysis
Advanced Functional Materials, EarlyView.Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska +7 more
wiley +1 more source
Fractal koch antenna for indoor tv and fm reception [PDF]
, 2013 Many resources in the internet guide user to build an easy to construct and simple homemade TV and FM antenna. The antenna are just using some recycle materials and just two conductor such as copper wire as a dipole antenna.
Ong, Hui Niang
core
A practical theorem on using interferometry to measure the global 21-cm signal [PDF]
, 2016 The sky-averaged, or global, background of redshifted $21$ cm radiation is expected to be a rich source of information on cosmological reheating and reionizaton.
Chang, Tzu-Ching +3 more
core +3 more sources
Advanced Functional Materials, EarlyView.A miniaturized mechano‐acoustic sensor is developed using an electrospun PVDF nanomesh as the diaphragm in a capacitive sensor structure. Unlike conventional nanomesh‐based sensors, it achieves high linear sensitivity, a broad and flat frequency response, and a compact form factor.
Jeng‐Hun Lee +8 more
wiley +1 more source
35-GHz Wideband Vertical Off-Center-Fed Dipole and Its Array in LTCC Technology [PDF]
Radioengineering, 2018 A 35-GHz wideband low-temperature co-fired ceramic (LTCC) vertical off-center-fed dipole antenna and its 2×2 array are presented. The widened bandwidth of the dipole antenna is achieved by paralleling a ring-shaped stub placed above the ground with a ...
M. Du +5 more
doaj
Low Profile, Broadside Radiating, Electrically Small Huygens Source Antennas
IEEE Access, 2015 It is demonstrated numerically that a metamaterial-inspired, low profile (height approximately λ/80), electrically small (ka = 0.45) Huygens source antenna can be designed to radiate at 300 MHz in its broadside direction with a high radiation ...
Richard W. Ziolkowski
doaj +1 more source
A new B-dot probe-based diagnostic for amplitude, polarization, and wavenumber measurements of ion cyclotron range-of frequency fields on ASDEX Upgrade [PDF]
, 2015 A new B-dot probe-based diagnostic has been installed on an ASDEX Upgrade tokamak to characterize ion cyclotron range-of frequency (ICRF) wave generation and interaction with magnetized plasma.
Ekedahl A. +8 more
core +2 more sources
Advanced Functional Materials, EarlyView.Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz +3 more
wiley +1 more source
Wideband High-Gain Circularly-Polarized Low RCS Dipole Antenna With a Frequency Selective Surface
IEEE Access, 2019 A low radar cross-section (RCS) wideband circularly-polarized (CP) dipole antenna using a frequency selective surface (FSS) is presented in this paper.
Ankit Sharma +6 more
doaj +1 more source
Near-field direct antenna modulation [PDF]
, 2009 NFDAM systems provide a unique solution for transmitting highly secured direction-dependent data and hence preventing eavesdroppers from properly demodulating the signal.
Babakhani, Aydin +2 more
core +2 more sources