Results 1 to 10 of about 2,510,910 (246)

External-Cavity Quantum Cascade Laser-Based Gas Sensor for Sulfur Hexafluoride Detection

Chemosensors, 2022
The external-cavity quantum cascade laser (ECQCL) is an ideal mid-infrared (MIR) spectral light source for determining large molecular-absorption spectral features with broad transition bands.
Xingyu Pan, Yifan Zhang, Jiayu Zeng, Minghui Zhang, Jingsong Li   +4 more
doaj   +1 more source

Simultaneous Detection of CO₂ and CH₄ Using a DFB Diode Laser-Based Absorption Spectrometer

Chemosensors, 2022
In this paper, an attractive gas sensing technique based on fiber optical sensing ideal was developed for the detection of multi-gas species simultaneously.
Xu Wu, Yulong Du, Shijian Shi, Cong Jiang, Xueliang Deng, Song Zhu, Xiaolong Jin, Jingsong Li   +7 more
doaj   +1 more source

An Effective Route for the Growth of Multilayer MoS2 by Combining Chemical Vapor Deposition and Wet Chemistry

Advances in Condensed Matter Physics, 2022
Molybdenum disulfide (MoS2) is an actively pursuing material of the 2D family due to its semiconducting characteristics, making it a potential candidate for nano and optoelectronics application.
Ziyad M. Almohaimeed, Shumaila Karamat, Rizwan Akram, Saira Sarwar, Asad Javaid, Ahmet Oral   +5 more
doaj   +1 more source

Atom-optically synthetic gauge fields for a noninteracting Bose gas

Light: Science & Applications, 2022
A two-leg ladder with tunable gauge fields is achieved by one-dimensional synthetic momentum-state lattice of a noninteracting Bose gas.
Yuqing Li, Jiahui Zhang, Yunfei Wang, Huiying Du, Jizhou Wu, Wenliang Liu, Feng Mei, Jie Ma, Liantuan Xiao, Suotang Jia   +9 more
doaj   +1 more source

Effect of Solvents on the Fluorescent Spectroscopy of BODIPY-520 Derivative

Journal of Spectroscopy, 2022
Photodynamic therapy (PDT) is a selective and minimally invasive technique for the treatment of tumors. It includes three components such as photosensitizer, light, and molecular oxygen.
Buthaina Kamel, Moustafa Sayem El-Daher, Wesam Bachir, Amina Ibrahim, Sinan Aljalali   +4 more
doaj   +1 more source

Testing universality of Feynman-Tan relation in interacting Bose gases using high-order Bragg spectra

Light: Science & Applications, 2023
The Feynman-Tan relation, obtained by combining the Feynman energy relation with the Tan’s two-body contact, can explain the excitation spectra of strongly interacting 39K Bose-Einstein condensate (BEC).
Yunfei Wang, Huiying Du, Yuqing Li, Feng Mei, Ying Hu, Liantuan Xiao, Jie Ma, Suotang Jia   +7 more
doaj   +1 more source

Shock Waves in Laser-Induced Plasmas

Atoms, 2019
The production of a plasma by a pulsed laser beam in solids, liquids or gas is often associated with the generation of a strong shock wave, which can be studied and interpreted in the framework of the theory of strong explosion.
Beatrice Campanella, Stefano Legnaioli, Stefano Pagnotta, Francesco Poggialini, Vincenzo Palleschi   +4 more
doaj   +1 more source

Hyperglycemia and cancer in human lung carcinoma by means of Raman spectroscopy and imaging

Scientific Reports, 2022
Raman spectroscopy and Raman imaging were used to identify the biochemical and structural features of human cancer lung cells (CCL-185) and the cancer cells supplemented with glucose and deuterated glucose at normal and hyperglycemia conditions. We found
M. Kopeć, K. Beton, K. Jarczewska, H. Abramczyk   +3 more
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YOLOv5m and Segment Anything Model Collaborative Segmentation Method for Rapid and Accurate Detection of Incoming Coal Particle Size in Thermal Power Plants

发电技术
ObjectivesThe particle size distribution of incoming coal directly affects the combustion efficiency, operational stability, and environmental indicators of circulating fluidized bed boilers. Therefore, achieving real-time, online, and accurate detection
MA Yadong, XIN Rong, WEI Chenxi, LI Jiaxuan, ZHANG Peihua, ZHANG Lei   +5 more
doaj   +1 more source

Impact of Severe Desert Dust on Multi-Wavelength Free-Space Optical Links: A Comparative Study at 850, 1550, and 3800 nm

Журнал нано- та електронної фізики
Free-Space Optical (FSO) communication offers high-bandwidth and safe links but suffers severe performance degradation in harsh atmospheric conditions, particularly in power-constrained systems operating through desert dust storms.
Ayad Saadi Ahmed, Shaymaa A. Ahmed, Thoalfiqar A. Zaker   +2 more
doaj   +1 more source