Results 41 to 50 of about 21,546 (202)

Breakdown and Discharge Characteristics of High Repetition Frequency Nanosecond Pulsed Air Dielectric Barrier Discharge

open access: yesHigh Voltage, EarlyView.
ABSTRACT This study explores the breakdown characteristics and discharge modes in a parallel plate air dielectric barrier discharge system using repetitive nanosecond pulses, with pulse repetition frequencies (PRFs) from 0.1 to 100 kHz. It examines how pulse parameters—PRF, pulse number and gas pressure—affect the memory effect, leveraging current and ...
Mahreen   +3 more
wiley   +1 more source

GIS e tutela del patrimonio ecclesiastico

open access: yesGEOmedia, 2007
Negli ultimi anni, la Conferenza Episcopale Italiana (CEI) ha avviato un progetto denominato Censimento delle chiese di proprietà ecclesiastica che affianca l’inventario dei beni mobili ecclesiastici, iniziato nel 1997.
Elena Latini
doaj   +2 more sources

Photon-number distributions of twin beams generated in spontaneous parametric down-conversion and measured by an intensified CCD camera

open access: yes, 2012
The measurement of photon-number statistics of fields composed of photon pairs, generated in spontaneous parametric down-conversion and detected by an intensified CCD camera is described.
A. P. Dempster   +16 more
core   +1 more source

Surface Flashover in 50 Years: III. Extreme Environments and Industrial Challenges

open access: yesHigh Voltage, EarlyView.
ABSTRACT Modern high‐voltage electrical equipment operates in complex environments where surface conditions are subjected to multifaceted influences from electric fields, thermal gradients, contaminants, irradiation and other extreme environmental factors.
Zhen Li   +6 more
wiley   +1 more source

Il potenziale informativo degli archivi di fotografia militare della Seconda Guerra Mondiale ai fini della protezione civile e dell’analisi del territorio Fotogrammetria, intelligenza artificiale e webGIS al servizio degli archivi fotografici

open access: yesGEOmedia, 2018
WWII aerial photo reconnaissance played a decisive role in the success of the Allied campaigns in Europe. Repeated aerial surveys provided information to monitor enemy lines, identify targets, plan attacks and assess damages inflicted by aerial bombing ...
Elizabeth Jane Shepherd   +2 more
doaj   +2 more sources

Al/Ni reactive multilayer films enhancing the properties of plasma induced by nanosecond pulsed laser

open access: yesEnergetic Materials Frontiers, 2021
In this paper, the influence of Al/Ni reactive multilayer films on laser ablation induced plasma process is investigated. Laser ablation of single Ni layer and Al/Ni RMFs was performed by nanosecond pulsed laser beam with 1064 ​nm wavelength.
Yao Wang   +4 more
doaj   +1 more source

Axial light emission and Ar metastable densities in a parallel plate dc micro discharge in steady state and transient regimes

open access: yes, 2011
Axial emission profiles in a parallel plate dc micro discharge (feedgas: argon; discharge gap d=1mm; pressure p=10Torr) were studied by means of time resolved imaging with a fast ICCD camera.
Aubert X   +36 more
core   +1 more source

On-Chip Transparent Wire Pipelining (invited paper) [PDF]

open access: yes, 2004
Wire pipelining has been proposed as a viable mean to break the discrepancy between decreasing gate delays and increasing wire delays in deep-submicron technologies.
Casu, Mario Roberto, Macchiarulo, Luca
core   +1 more source

Laser‐Induced Breakdown Spectroscopy (LIBS) for Rapid Food Safety Monitoring: Advancements, Applications, and Future Directions

open access: yesFood Safety and Health, Volume 4, Issue 1, Page 50-66, January 2026.
Laser‐induced breakdown spectroscopy (LIBS) emerges as a transformative tool for rapid, on‐site pesticide residue detection in food, offering real‐time screening with minimal sample preparation and eliminating solvent use. Although LIBS demonstrates detection limits (0.009–6.9 mg/kg) suitable for regulatory screening and aligns with green chemistry ...
Mohammad Mehdizadeh   +5 more
wiley   +1 more source

Spatially encoded light for Large-alphabet Quantum Key Distribution [PDF]

open access: yes, 2019
Most Quantum Key Distribution protocols use a two-dimensional basis such as HV polarization as first proposed by Bennett and Brassard in 1984. These protocols are consequently limited to a key generation density of 1 bit per photon.
Hooijschuur, P.   +4 more
core   +4 more sources

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