Results 21 to 30 of about 165,880 (282)

Intercomparison of air ion spectrometers: an evaluation of results in varying conditions [PDF]

Atmospheric Measurement Techniques, 2011
We evaluated 11 air ion spectrometers from Airel Ltd. after they had spent one year in field measurements as a part of the EUCAARI project: 5 Air Ion Spectrometers (AIS), 5 Neutral cluster and Air Ion Spectrometers (NAIS) and one Airborne NAIS (ANAIS ...
S. Gagné, K. Lehtipalo, H. E. Manninen, T. Nieminen, S. Schobesberger, A. Franchin, T. Yli-Juuti, J. Boulon, A. Sonntag, S. Mirme, A. Mirme, U. Hõrrak, T. Petäjä, E. Asmi, M. Kulmala   +14 more
doaj   +1 more source

Dataset of visible-near infrared handheld and micro-spectrometers – comparison of the prediction accuracy of sugarcane properties

Data in Brief, 2020
In the dataset presented in this article, sixty sugarcane samples were analyzed by eight visible / near infrared spectrometers including seven micro-spectrometers.
Abdallah Zgouz, Daphné Héran, Bernard Barthès, Denis Bastianelli, Laurent Bonnal, Vincent Baeten, Sebastien Lurol, Michael Bonin, Jean-Michel Roger, Ryad Bendoula, Gilles Chaix   +10 more
doaj   +1 more source

Photonic crystal spectrometer

Optics Express, 2010
9 pages, 6 figures; discussion of light extraction and more experimental details ...
Pervez, Nadia K., Cheng, Warren, Jia, Zhang, Cox, Marshall P., Edrees, Hassan M., Kymissis, Ioannis   +5 more
openaire   +3 more sources

Effect of Surface Condition on the Results of Chemical Composition Measurements of Scrap Copper Alloys

Recycling
The processing of copper-bearing scrap makes it possible to reduce the costs and energy consumption of obtaining copper alloy products compared to producing them from primary raw materials.
Łukasz Bernat, Tomasz Jurtsch, Grzegorz Moryson, Jan Moryson, Grzegorz Wiczyński   +4 more
doaj   +1 more source

A platform for integrated spectrometers based on solution-processable semiconductors

Light: Science & Applications, 2023
Acquiring real-time spectral information in point-of-care diagnosis, internet-of-thing, and other lab-on-chip applications require spectrometers with hetero-integration capability and miniaturized feature.
Yanhao Li, Xiong Jiang, Yimu Chen, Yuhan Wang, Yunkai Wu, De Yu, Kaiyang Wang, Sai Bai, Shumin Xiao, Qinghai Song   +9 more
doaj   +1 more source

Large Acceptance Spectrometers for Invariant Mass Spectroscopy of Exotic Nuclei and Future Development

, 2015
Large acceptance spectrometers at in-flight RI separators have played significant roles in investigating the structure of exotic nuclei. Such spectrometers are in particular useful for probing unbound states of exotic nuclei, using invariant mass ...
Kondo, Y., Nakamura, T.
core   +1 more source

Integrating UAV-Mounted Diffraction Spectroscopy and FBG Sensor Networks for Real-Time Forest Health Monitoring

IEEE Access
Real-time forest health assessment requires both fine-scale physiological measurements and landscape-scale biochemical mapping, yet current monitoring strategies rarely integrate in-situ and airborne modalities into a unified operational framework. Here,
Maha Sliti, Abdelrahman Elfikky, Ayman I. Boghdady, Syed Agha Hassnain Mohsan, Sarra Ayouni   +4 more
doaj   +1 more source

Electrically tunable two-dimensional heterojunctions for miniaturized near-infrared spectrometers

Nature Communications, 2022
Miniaturized infrared spectrometers are required for imaging and remote sensing applications, but they are usually characterized by a cm-scale footprint.
Wenjie Deng, Zilong Zheng, Jingzhen Li, Rongkun Zhou, Xiaoqing Chen, Dehui Zhang, Yue Lu, Chongwu Wang, Congya You, Songyu Li, Ling Sun, Yi Wu, Xuhong Li, Boxing An, Zheng Liu, Qi jie Wang, Xiangfeng Duan, Yongzhe Zhang   +17 more
doaj   +1 more source

OCTAD-S: Digital Fast Fourier Transform Spectrometers by FPGA

, 2017
We have developed a digital fast Fourier transform (FFT) spectrometer made of an analog-to-digital converter (ADC) and a field-programmable gate array (FPGA). The base instrument has independent ADC and FPGA modules, which allow us to implement different
Chikahiro, Yuichi, Ema, Kenji, Harada, Kenichi, Hayashi, Yoshinori, Ishibashi, Hiromitsu, Iwai, Kazumasa, Kubo, Yûki, Naoi, Takahiro   +7 more
core   +1 more source

The Dark Side of the Universe: Spectroscopy [PDF]

In this activity students construct simple spectrometers and gain experience comparing and contrasting spectra from incandescent and fluorescent light sources.

core   +1 more source