Results 61 to 70 of about 9,437,064 (297)

DC–35 GHz low-loss MMIC switch using 50 nm gate-length MHEMT technology for ultra-low-power applications [PDF]

open access: yes, 2009
A broadband low-loss, ultra-low-power consumption transmit/ receive switch using high-performance 50 nm gate-length metamorphic high electron mobility transistors (MHEMTs) is presented.
Hwang, C.J.   +10 more
core   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

The political effects of London’s Ultra Low Emission Zone

open access: yesThe British Journal of Politics and International Relations
The unexpected defeat of the Labour Party in a recent by-election has been attributed to the expansion of London’s Ultra Low Emission Zone (ULEZ). Employing a difference-in-difference methodology across two phases of ULEZ expansion and examining three sets of elections, we find inconsistent political effects.
Andrew McNeil, Frieder Mitsch
openaire   +4 more sources

FastNano Liquid: An Automated Platform for Small‐Angle X‐ray Scattering‐Based Materials Discovery

open access: yesAdvanced Engineering Materials, EarlyView.
We present FastNano Liquid, an automated small‐ and wide‐angle X‐ray scattering platform for the combined synthesis and characterization of (nano)materials. The platform is coupled to varied reactor workflows for both in situ studies of reaction kinetics and ex situ screening of synthesis conditions to support machine learning‐guided exploration ...
Pierre‐Baptiste Flandrin   +16 more
wiley   +1 more source

Preparation of magnetized coal-based CoFe@Coal-C nano-composites: Efficient Fenton-like degradation of quinoline

open access: yesMeitan xuebao
To maximize the utilization of coal resources and efficiently remove quinoline from coal chemical wastewater, a CoFe@Coal-C composite material is prepared using lignite as raw material, which is applied as the heterogeneous Fenton-like catalyst for ...
Huagen LIANG   +4 more
doaj   +1 more source

Preseismic ULF effectand possible interpretation

open access: yesAnnals of Geophysics, 2004
We present the results of ULF magnetic field observation at Karimshino station (Kamchatka, Russia). Using a case study we discovered an effect of suppression of ULF intensity about 2-6 days before rather strong and isolated seismic shocks (magnitude M ...
M. S. Solovieva   +5 more
doaj   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Ultra-low-dose CT-images of paranasal sinus.

open access: yes, 2019
Axial (A) and coronal (B) reformations of 100 kV tin-filtered ultra-low-dose CT of the paranasal sinus of a 63-year-old male (DLP 2.1 mGycm; effective dose 0.012 mSv). Despite the very low dose, the diagnosis of florid sinusitis is easily established. In
Thorsten Alexander Bley (6667784)   +3 more
core   +1 more source

Ultra-low-power RADFET sensing circuit for wireless sensor networks powered by energy harvesting [PDF]

open access: yes, 2016
We evaluate an ultra-low-power radiation-sensing circuit based on a radiation sensitive MOSFET (RADFET) for use in Wireless Sensor Networks (WSN) powered by energy harvesting with a special focus on airborne applications.
M Zhu (4700422)   +4 more
core   +5 more sources

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