Results 21 to 30 of about 2,382,538 (250)

High-Speed Focus Inspection System Using a Position-Sensitive Detector

open access: yesSensors, 2017
Precise and rapid focus detection is an essential operation in several manufacturing processes employing high-intensity lasers. However, the detection resolution of existing methods is notably low.
Binh Xuan Cao   +5 more
doaj   +1 more source

A Thermocycler Using a Chip Resistor Heater and a Glass Microchip for a Portable and Rapid Microchip-Based PCR Device

open access: yesMicromachines, 2022
This study proposes a rapid and inexpensive thermocycler that enables rapid heating of samples using a thin glass chip and a cheap chip resistor to overcome the on-site diagnostic limitations of polymerase chain reaction (PCR). Microchip PCR devices have
Dongsun Yeom   +6 more
doaj   +1 more source

In-Situ Real-Time Focus Detection during Laser Processing Using Double-Hole Masks and Advanced Image Sensor Software

open access: yesSensors, 2017
In modern high-intensity ultrafast laser processing, detecting the focal position of the working laser beam, at which the intensity is the highest and the beam diameter is the lowest, and immediately locating the target sample at that point are ...
Binh Xuan Cao   +5 more
doaj   +1 more source

Escherichia coli Cells Exposed to Lethal Doses of Electron Beam Irradiation Retain Their Ability to Propagate Bacteriophages and Are Metabolically Active

open access: yesFrontiers in Microbiology, 2018
Reports in the literature suggest that bacteria exposed to lethal doses of ionizing radiation, i.e., electron beams, are unable to replicate yet they remain metabolically active.
Anne-Sophie Charlotte Hieke   +3 more
doaj   +1 more source

Electron Energy Spectrometer for MIR-THz FEL Light Source at Chiang Mai University

open access: yesParticles, 2023
The linear accelerator system of the PBP-CMU Electron Linac Laboratory has been designed with the aim of generating free-electron lasers (FELs) in the mid-infrared (MIR) and terahertz (THz) regions.
Kittipong Techakaew   +2 more
doaj   +1 more source

Manipulating Twisted Electron Beams [PDF]

open access: yesPhysical Review Letters, 2017
A theoretical description of vortex electrons interacting with electric and magnetic fields is presented, based on Lorentz transformations. The general dynamical equations of motion of a twisted electron with intrinsic orbital angular momentum in an external field is derived.
Silenko, A.J., Zhang, P., Zou, L.
openaire   +5 more sources

Cold cathode electron beam sources for high-rate PVD

open access: yes, 2022
S.204-209Electron Beams are known to be powerful and versatile tools for evaporation of various kinds of materials. At the other hand, conventional high-power electron beam sources based upon thermionic emitters are expensive and therefore in many thin ...
Mattausch, G.   +2 more
core   +1 more source

A 3D Miniaturized Glass Magnetic-Active Centrifugal Micropump Fabricated by SLE Process and Laser Welding

open access: yesMicromachines, 2022
A miniaturized pump to manipulate liquid flow in microchannels is the key component of microfluidic devices. Many researchers have demonstrated active microfluidic pumps, but most of them still required additional large peripherals to operate their ...
Jeongtae Kim   +3 more
doaj   +1 more source

Investigation on Laser Welding of Al Ribbon to Cu Sheet: Weldability, Microstructure, and Mechanical and Electrical Properties

open access: yesMetals, 2021
The pulsed laser welding of Al ribbon to Cu sheet was investigated for the electrical interconnections in power electronic modules. The various experimental conditions with the different laser powers, scan speeds, and heat inputs were employed for ...
Won-Sang Shin   +6 more
doaj   +1 more source

Electron beam for LHC [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2005
20 pages, 5 ...
openaire   +3 more sources

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