Results 51 to 60 of about 17,964 (305)

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Designing an Efficient Ultra Small Form Factor On-Chip Antenna for UHF RFID Application [PDF]

open access: yesRadioengineering, 2019
The efficient design of electrically small antennas (ESA) has recently evolved to an outstandingly active area of research. This paper aims to present an improved performance electrically small on-chip antenna design, for the 920 MHz UHF-RFID frequency ...
B. Matolcsy, A. Zolomy
doaj  

Modified Transceiver Antenna for NQR Detection of Explosive Objects in Demining Conditions

open access: yesEnergies, 2022
This paper presents the conceptual stages of the simulation and development of a modified transceiver antenna for a high-power pulsed nuclear quadrupole resonance (NQR) detector of explosives containing the 14N isotope.
Andrii Samila   +4 more
doaj   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende   +26 more
wiley   +1 more source

Retracted: Design and Performance Evaluation of OAM-Antennas: A Comparative Review

open access: yesIEEE Access, 2023
For many communication systems, including wireless networks, mobile, satellite, radar, remote sensing, and many more applications, antenna arrays are very necessary.
Omar A. Saraereh
doaj   +1 more source

Understanding the Effect of Resistance Temperature Detector Temperature Controllers on Microstructural Alignment in Magnetic Freeze Casting

open access: yesAdvanced Engineering Materials, EarlyView.
The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley   +1 more source

AMC surface based on spiral strips and its applications for low‐profile broadband planar antennas

open access: yesIET Microwaves, Antennas & Propagation, 2019
A novel artificial magnetic conductor (AMC) surface based on spiral strips is proposed, which consists of 9 × 9 AMC cells. Each AMC cell includes a spiral strip to increase its inductance, thus featuring a wide bandwidth of 42% for ±90° reflection phase.
RongLin Li   +4 more
doaj   +1 more source

Seebeck Nanoantennas for Infrared Detection and Energy Harvesting Applications [PDF]

open access: yes, 2014
In this letter we introduce a new type of infrared sensor, based on thermocouple nanoantennas, which enables the energy detection and gathering in the mid-infrared region.
Alda, Javier   +8 more
core   +2 more sources

Orbital Angular Momentum Waves: Generation, Detection and Emerging Applications

open access: yes, 2019
Orbital angular momentum (OAM) has aroused a widespread interest in many fields, especially in telecommunications due to its potential for unleashing new capacity in the severely congested spectrum of commercial communication systems.
Chen, Rui   +4 more
core   +1 more source

Expansion of a Y-shaped array antennas for radio astronomy [PDF]

open access: yes, 2013
Observing celestial objects is common in radio astronomy. The Giant Meterwave Radio Telescope (GMRT) is one of the world's latest telescopes of its kind.
Kiehbadroudinezhad, Shahideh   +2 more
core   +1 more source

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