Results 31 to 40 of about 984,100 (279)

Structural aspects of AlPO4-5 zeotypes synthesized by microwave-hydrothermal process. 1. Effect of heating time and microwave power [PDF]

, 2009
AlPO4-5 with AFI structure containing 12-membered rings was prepared using the aluminum isopropoxide precursor as a source of alumina and TEA as the structure directing agent via microwave technique.
Sakintuna, Billur, Yurum, Yuda, Yürüm, Yuda   +2 more
core   +3 more sources

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

Hybrid Fishnet Metamaterial Based on Liquid Crystal and P-I-N Diodes for Reconfigurable Transmitarrays at $10 \,\mathrm{GHz}$

IEEE Journal of Microwaves
This article presents a reconfigurable unit cell for transmitarrays at $10 \,\mathrm{GHz}$ based on the fishnet metamaterial structure. The proposed design achieves a phase shift of up to $180 \mathrm{^{\circ }}$ between different states and additional ...
Adrian Diepolder, Lukas Schmidt, Susanne Brandl, Philipp Hinz, Christian Waldschmidt, Christian Damm   +5 more
doaj   +1 more source

SNR‐dependent drone classification using convolutional neural networks

IET Radar, Sonar & Navigation, 2022
Radar sensing offers a method of achieving 24‐h all‐weather drone surveillance, but in order to be maximally effective, systems need to be able to discriminate between birds and drones.
Holly Dale, Chris Baker, Michail Antoniou, Mohammed Jahangir, George Atkinson, Stephen Harman   +5 more
doaj   +1 more source

Atomic resolution imaging at 2.5 GHz using near-field microwave microscopy

, 2010
Atomic resolution imaging is demonstrated using a hybrid scanning tunneling/near-field microwave microscope (microwave-STM). The microwave channels of the microscope correspond to the resonant frequency and quality factor of a coaxial microwave resonator,
Lee, Jonghee, Long, Christian J., Takeuchi, Ichiro, Xiang, Xiao-Dong, Yang, Haitao   +4 more
core   +1 more source

Applications of Graphene at Microwave Frequencies [PDF]

, 2015
In view to the epochal scenarios that nanotechnology discloses, nano-electronics has the potential to introduce a paradigm shift in electronic systems design similar to that of the transition from vacuum tubes to semiconductor devices.
Bellucci, S., Bozzi, M., Pierantoni, L.
core   +2 more sources

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

Advanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh, Shashank Deepak Prabhu, Jannik Huber, Lioba Fischer, Gerhard Wolf, Nico Hempel, Peter Mayr   +6 more
wiley   +1 more source

Microwave spectroscopy on a double quantum dot with an on-chip Josephson oscillator

, 2000
We present measurements on microwave spectroscopy on a double quantum dot with an on-chip microwave source. The quantum dots are realized in the two-dimensional electron gas of an AlGaAs/GaAs heterostructure and are weakly coupled in series by a ...
, A V Ustinov, A W Holleitner, B Irmer, F Simmel, H Qin, J P Kotthaus, K Eberl, Qin H, R H Blick   +9 more
core   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

A Novel Rotation-Based Standardless Calibration and Characterization Technique for Free-Space Measurements of Dielectric Material

IEEE Journal of Microwaves
This article presents a novel transmission-only calibration technique for free-space quasi-optical material characterization, based on rotating the sample around its axis to vary the angle of incidence under which the sample is illuminated.
Adrian Diepolder, Mario Mueh, Susanne Brandl, Philipp Hinz, Christian Waldschmidt, Christian Damm   +5 more
doaj   +1 more source