Results 21 to 30 of about 857,173 (193)

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

Micromachines, 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, Jeongtae Kim, Sungil Kim, Sanghoon Ahn, Jiyeon Choi, Youngwook Kim, Chiwan Koo   +6 more
doaj   +1 more source

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

Sensors, 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, Phuong Le Hoang, Sanghoon Ahn, Jeng-o Kim, Heeshin Kang, Jiwhan Noh   +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

Frontiers 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, Anne-Sophie Charlotte Hieke, Suresh D. Pillai, Suresh D. Pillai   +3 more
doaj   +1 more source

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

Particles, 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, Kanlayaporn Kongmali, Sakhorn Rimjaem   +2 more
doaj   +1 more source

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

Micromachines, 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, Sungil Kim, Jiyeon Choi, Chiwan Koo   +3 more
doaj   +1 more source

Manipulating Twisted Electron Beams [PDF]

Physical 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

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

Metals, 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, Dae-Won Cho, Donghyuck Jung, Heeshin Kang, Jeng O Kim, Yoon-Jun Kim, Changkyoo Park   +6 more
doaj   +1 more source

Six-dimensional weak-strong simulations of head-on beam-beam compensation in RHIC

, 2014
To compensate the large beam-beam tune spread and beam-beam resonance driving terms in the polarized proton operation in the Relativistic Heavy Ion Collider (RHIC), we will introduce a low-energy DC electron beam into each ring to collide head-on with ...
Abreu, N. P., Fischer, W., Gu, X., Luo, Y., Pikin, A., Robert-Demolaize, G.   +5 more
core   +1 more source

Generation of Multi-Color Attosecond X-Ray Radiation Through Modulation Compression

, 2011
In this paper, we propose a scheme to generate tunable multi-color attosecond coherent X-ray radiation for future light source applications. This scheme uses an energy chirped electron beam, a laser modulators, a laser chirper and two bunch compressors ...
Qiang, Ji, Wu, Juhao
core   +1 more source

Method for the use of polymer beads as dosimeters for low-energy electron irradiation

Frontiers in Physics
In this study, a novel bead-based dosimetry system was developed. This approach uses suspended polymethyl methacrylate beads, which experience a dose-dependent change in fluorescence intensities.
Joana Kira Besecke, Joana Kira Besecke, Joana Kira Besecke, Lysann Kenner, André Poremba, Jessy Schönfelder, Jessy Schönfelder, Tobias Teichmann, Martin Thoma, Martin Thoma, Thomas Grunwald, Thomas Grunwald, Elizabeth von Hauff, Elizabeth von Hauff, Ulla König, Björn Poppe, Simone Schopf, Simone Schopf   +17 more
doaj   +1 more source