Results 101 to 110 of about 143,838 (299)

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff   +9 more
wiley   +1 more source

An Optical Fiber Tip Micrograting Thermometer

open access: yesIEEE Photonics Journal, 2011
An ~ 12-μm-long Bragg grating was engraved in an ~ 5-μm-diameter optical fiber tip by focused ion beam (FIB) milling. An ~ 10-dB extinction was achieved at 1570 nm with only 11 indentations. The grating was used for temperature sensing, and
Jing Feng   +4 more
doaj   +1 more source

Distributed photonic instrumentation for smart grids [PDF]

open access: yes, 2013
Photonic sensor networks possess the unique potential to provide the instrumentation infrastructure required in future smart grids by simultaneously addressing the issues of metrology and communications.
Beaumont, Phil   +6 more
core   +1 more source

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel   +6 more
wiley   +1 more source

Role of optical computers in aeronautical control applications [PDF]

open access: yes
The role that optical computers play in aircraft control is determined. The optical computer has the potential high speed capability required, especially for matrix/matrix operations.
Baumbick, R. J.
core   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

open access: yesAdvanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang   +3 more
wiley   +1 more source

Review of Optical Fiber Optofluidic Chemical Sensors and Biosensors

open access: yesPhotonic Sensors
Optical fiber sensors have gained significant attention in recent years owing to their remarkable advantages of remote operation and rapid response. The integration of optical fiber sensing with the microfluidics technology has paved the way for the ...
Shuai Gao   +8 more
doaj   +1 more source

Status of the Fiber Optic Control System Integration (FOCSI) program [PDF]

open access: yes
This report presents a discussion of the progress made in the NASA/NAVY Fiber Optic Control System Integration (FOCSI) program. This program will culminate in open-loop flight tests of passive optical sensors and associated electro-optics on an F-18 ...
Baumbick, Robert J.
core   +1 more source

Fiber optic long period grating sensors with a nanoassembled mesoporous film of SiO2 nanoparticles [PDF]

open access: yes, 2010
A novel approach to chemical application of long period grating (LPG) optical fibers was demonstrated, which were modified with a film nanoassembled by the alternate deposition of SiO2 nanoparticles (SiO2 NPs) and poly(diallyldimethyl ammonium ...
Korposh, Sergiy   +6 more
core   +1 more source

Fiber Optic Sensors

open access: yes, 2008
{"references": ["F.Yu,S.Yin, Fiber optic sensors. Marcel-Dekker, 2002.", "D.A .Krohn, \"Fiber optic sensors-Fundamental and applications,\"\nInstrument Society of America.", "E.Udd Et Al, Fiber optic smart structures. John Wiley& Sons INC, New\nYork.", "DAKIN Dakin and B.Culshaw, Optical fiber sensors-Principles and\ncomponents. Vol.I, Artech House,
Gholamzadeh, Bahareh, Nabovati, Hooman
openaire   +1 more source

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