Publications by authors named "YaGe He"
The safe and fast measurement of volume of detonation (VoD) is always a hard task for macroscale explosion even though it is one of the important parameters to evaluate the explosion performance. Therefore, a promising technology to determine the VoD is highly desirable for evaluation of energetic materials. Herein, a new method of VoD determination based on gaseous products via small dose energetic materials by time correlated laser induced plasma spectroscopy (LIPS) combined with schlieren image was proposed.
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- The study focuses on accurately measuring ash, fixed carbon, and volatile matter in coal while accounting for the moisture content that affects the results.
- Researchers used a method called PCA-PLS to analyze coal samples with moisture levels between 3% and 15% and found that higher moisture content increases prediction errors in the measurement models.
- To improve accuracy, the team introduced an infrared CO laser technique to quickly dry moist coal samples, significantly reducing prediction errors and showcasing the method's potential for real-time detection in high-moisture coal environments.
The real-time online quantitative analysis instrument is highly desirable for many industrial fields. Herein, a new laser-induced breakdown spectroscopy (LIBS) setup with optimized optical route and high accuracy algorithm is designed and applied in a real industrial site. The components of total iron (TFe), silica (SiO2), aluminum oxide (Al2O3), and phosphorus (P) are quantitatively determined by the online LIBS system.
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- A new micro-scale method is introduced to quickly and safely assess the detonation parameters of energetic materials, overcoming limitations of traditional experimental techniques that are costly and hazardous.
- The study demonstrates a strong link between micro-scale explosions and their larger counterparts through laser-induced plasma analysis, revealing intricate dynamics of the explosions and chemical reactions.
- Using this approach, researchers can accurately estimate the detonation performance of various explosives, including determining their detonation pressure and enthalpy, making it a groundbreaking advancement in the field.
Micro/nano optoelectronic devices are widely studied as basic building blocks for on-chip integrated microsystem and multichannel logic units with excellent optoelectronic properties that are especially important part for interconnection route construction. Here, based on anisotropic waveguides, an optical switch with an on/off ratio of 2.14 is built up in a 2D CdS branched nanowire array.
View Article and Find Full Text PDFLithium (Li), as the lightest metal and the most important powerful material in battery fabrication, is widely used in many fields. The fast detection of Li is necessary for industrial application. The slow-speed detection methods, including atomic absorption spectroscopy and inductively coupled plasma mass spectroscopy with high accuracy and low limit of detection, are hard to utilize in in situ industrial control due to complex prepreparation of samples.
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