Results 91 to 100 of about 133,377 (302)

Circuitry for determining median of image portions [PDF]

, 2005
Hardware circuit for median calculation in an active pixel ...
Mansoorian, Barmak, Pain, Bedabrata, Yadid-Pecht, Orly   +2 more
core   +1 more source

Pixel Detectors

, 2005
Pixel detectors for precise particle tracking in high energy physics have been developed to a level of maturity during the past decade. Three of the LHC detectors will use vertex detectors close to the interaction point based on the hybrid pixel ...
Wermes, Norbert
core   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Determining the Fixed Pattern Noise of a CMOS Sensor: Improving the Autonomous Star Trackers Sensibility

Journal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i2.206 Autonomous star trackers are optical-electronic devices used for attitude determination of artificial satellites, having as a reference for this computation the positions of stars.
Eduardo dos Santos Pereira
doaj  

Active pixel image sensor array for dual vision using large‐area bilayer WS2

InfoMat
Transition metal dichalcogenides (TMDs) are a promising candidate for developing advanced sensors, particularly for day and night vision systems in vehicles, drones, and security surveillance.
Arindam Bala, Mayuri Sritharan, Na Liu, Muhammad Naqi, Anamika Sen, Gyuchull Han, Hyun Yeol Rho, Youngki Yoon, Sunkook Kim   +8 more
doaj   +1 more source

Studies for an upgrade of ALICE Inner Tracking System: Pixel chip characterization

EPJ Web of Conferences, 2017
Inner Tracking System (ITS) of ALICE is used for vertex determination and tracking. Future heavy-ion program at the LHC aims to run with high luminosity.
Park Jonghan
doaj   +1 more source

A Novel Event-Based Incipient Slip Detection Using Dynamic Active-Pixel Vision Sensor (DAVIS)

Sensors, 2018
In this paper, a novel approach to detect incipient slip based on the contact area between a transparent silicone medium and different objects using a neuromorphic event-based vision sensor (DAVIS) is proposed.
Amin Rigi, Fariborz Baghaei Naeini, Dimitrios Makris, Yahya Zweiri   +3 more
doaj   +1 more source

Fundamental limits of quantum-secure covert optical sensing [PDF]

, 2017
We present a square root law for active sensing of phase $\theta$ of a single pixel using optical probes that pass through a single-mode lossy thermal-noise bosonic channel.
Bash, Boulat A., Datta, Animesh, Gagatsos, Christos N., Guha, Saikat   +3 more
core   +1 more source

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

Advanced 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, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source