Results 81 to 90 of about 313,914 (301)

A new method for Synthetic Impulse and Aperture Radar transmitting waveform design based on non‐sequential positive, negative and random carrier frequency coding with dot product approach

open access: yesIET Radar, Sonar & Navigation, 2022
Synthetic Impulse and Aperture Radar (SIAR) is a kind of Multiple Input Multiple Output (MIMO) radar. It is a four‐dimensional radar that has advantages against stealth targets, multi targets, anti‐radiated missile, reconnaissance and interference, as ...
Pourya Yaghoubi Aliabad   +2 more
doaj   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

open access: yesFEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry   +9 more
wiley   +1 more source

Frequency conversion based on three-wave parametric solitons [PDF]

open access: yes, 2010
Parametric three-wave mixing in quadratic nonlinear crystals provides a versatile means of achieving widely tunable frequency conversion of laser light, thus permitting a substantial extension of the wavelength coverage of laser sources across broad ...
Degasperis, Antonio   +17 more
core   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Coupling between flexible ship and liquid sloshing using potential flow analysis and their effect on wave induced loads [PDF]

open access: yes, 2010
The purpose of this study is to investigate the influence of hull flexibility on the hydrodynamic forces and moments associated with liquid sloshing, as well as the dynamic characteristics = (e.g. resonance frequencies) of the whole system.
Tan, M.   +3 more
core  

High-Order Nanowire Resonances for High-Frequency, Large-Coupling-Strength Quantum Dot Hybrid Nanomechanics [PDF]

open access: yes
Hybrid nanomechanical systems embedding a quantum light emitter, such as a semiconductor quantum dot (QD), are actively investigated both for their fundamental interest and for potential applications to quantum information technologies.
Julien Claudon (9980345)   +10 more
core   +1 more source

Microsrip Ring Antennas Operating at Higher-Oder Modes for Mobile Communications [PDF]

open access: yes, 1995
An experimental study of microstrip ring antennas suitable for use in mobile communication systems is presented. Conical radiated beams are generated by the TM(21) and TM(41) modes.
Langley, Richard J., Batchelor, John C.
core   +1 more source

Motion analysis of and experimental research on a magnetic and elastic coupling oscillation system

open access: yesHeliyon
To analyze the motion laws of a magnetic and elastic coupling system under the influence of various factors, this paper proposes a magnetic coupling pendulum based on spring pieces and magnets—a magnetic–mechanical oscillator.
Sitian Zhao, Jiawei Wan, Lu Wang
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Mutual Coupling Reduction Techniques in Electronic Steering Antennas in X Band [PDF]

open access: yes, 2011
This work provides the development of an antenna for satellite communications onboard systems based on the recommendations ITU-R S.580-6 [1] and ITU-R S.465-5 [2].
Fernández González, José Manuel   +3 more
core   +1 more source

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