Results 31 to 40 of about 5,613,937 (294)

The applications of the in situ laser spectroscopy to the deep-sea cold seep and hydrothermal vent system

Solid Earth Sciences, 2020
Cold seep and hydrothermal vent system have unique function in mass circulation of the earth, and have been explored by in situ detection technologies in past decades.
Zengfeng Du, Xin Zhang, Boyang Xue, Zhendong Luan, Jun Yan   +4 more
doaj   +1 more source

Laser-induced breakdown of an optically trapped gold nanoparticle for single cell transfection [PDF]

, 2013
The cell selective introduction of therapeutic agents remains a challenging problem. Here we demonstrate spatially controlled cavitation instigated by laser-induced breakdown of an optically trapped single gold nanoparticle of diameter 100 nm. The energy
Gunn-Moore, Frank J, Arita, Yoshihiko, Antkowiak, Maciej, Ploschner, Martin, Dholakia, Kishan, Yoshihiko Arita, Maciej Antkowiak, Frank Gunn-Moore, Gunn-Moore, Frank, Martin Ploschner, Kishan Dholakia   +10 more
core   +1 more source

Chlorine detection in cement with laser-induced breakdown spectroscopy in the infrared and ultraviolet spectral range

, 2022
S.1135-1140A significant parameter to monitor the status of concrete buildings like bridges or parking garages is the determination of the depth profile of the chlorine concentration below the exposed concrete surface.
Noll, R., Wiens, E., Wilsch, G., Reichling, K., Gehlen, C.D.   +4 more
core   +1 more source

Wavelength Calibration for the LIBS Spectra of the Zhurong Mars Rover

Remote Sensing, 2023
China’s first Mars rover, Zhurong, landed on the southern region of Utopia Planitia, Mars, on 14 May 2021 (UTC). Zhurong is equipped with the Mars Surface Composition Detection Package (MarSCoDe), which analyzes the Martian surface’s material composition.
Yizhong Zhang, Xin Ren, Zhaopeng Chen, Wangli Chen, Zhenqiang Zhang, Xiangfeng Liu, Weiming Xu, Jianjun Liu, Chunlai Li   +8 more
doaj   +1 more source

Quantitative determination of hydrogen isotopes using laser-induced breakdown spectroscopy

He jishu, 2023
BackgroundLaser-induced breakdown spectroscopy (LIBS) is a new technology for testing and analyzing the composition and content of elements in materials.PurposeThis study aim to determine the content and distribution of hydrogen isotopes in hydrogen ...
XING Yubo, ZOU Zhiping, YANG Ruizhu, MA Wei, ZOU Liping, LU Liang, YANG Zhen   +6 more
doaj   +1 more source

A Brief Review of Calibration-Free Laser-Induced Breakdown Spectroscopy

Frontiers in Physics, 2022
The calibration-free laser-induced breakdown spectroscopy (CF-LIBS) technique requires no reference samples of the same matrix to establish the calibration curve, not affected by the matrix effect.
Ning Zhang, Tianxue Ou, Meng Wang, Zhanjian Lin, Chao Lv, Yuzhi Qin, Jiaming Li, Huan Yang, Nan Zhao, Qingmao Zhang   +9 more
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

A Practical Noise2Noise Denoising Pipeline for High‐Throughput Raman Spectroscopy

Advanced Engineering Materials, EarlyView.
A lightweight and reproducible denoising pipeline for high‐throughput Raman spectroscopy is introduced, based on a 1D convolutional autoencoder trained with a Noise2Noise strategy. Using only repeated short‐exposure acquisitions, the method suppresses stochastic noise without reference spectra, enabling reliable spectral reconstruction while preserving
David Martin‐Calle, Cesar Alvarez‐Llamas, Vincent Motto‐Ros, Christophe Dujardin, Jérémie Margueritat, David Rodney   +5 more
wiley   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

High‐Resolution Corrosion Fingerprinting of Alloy Libraries via Microdroplet Spectroelectrochemistry

Advanced Engineering Materials, EarlyView.
Ionic‐liquid microdroplet spectroelectrochemistry enables stable, localized electrochemical measurements over extended timescales. By coupling impedance spectroscopy, wetting analysis, finite‐element simulations, and operando Raman spectroscopy, it disentangles geometrical and electrochemical effects, opening new opportunities for rapid corrosion ...
Ekaterina Kurchavova, Oumaïma Gharbi, Mireille Turmine, Vincent Vivier   +3 more
wiley   +1 more source