A5100399058- Solid State Laser Technologies
- Advanced Fiber Laser Technologies
- Photorefractive and Nonlinear Optics
- Laser Design and Applications
- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Photonic Crystal and Fiber Optics
- Semiconductor Lasers and Optical Devices
- Spectroscopy and Laser Applications
- Optical measurement and interference techniques
- Terahertz technology and applications
- GaN-based semiconductor devices and materials
- Optical Systems and Laser Technology
- Laser-Matter Interactions and Applications
- Advanced Optical Sensing Technologies
- Optical Coherence Tomography Applications
- Orbital Angular Momentum in Optics
- Luminescence Properties of Advanced Materials
- Infrared Target Detection Methodologies
- Image Processing Techniques and Applications
- Adaptive optics and wavefront sensing
- Random lasers and scattering media
- Semiconductor Quantum Structures and Devices
- Advanced Measurement and Detection Methods
- Seismic Imaging and Inversion Techniques
Shandong University
2016-2025
Northeast Agricultural University
2025
Guizhou Normal University
2011-2025
Sixth Affiliated Hospital of Sun Yat-sen University
2022-2025
Sun Yat-sen University
2014-2025
Zhejiang Chem-tech Group (China)
2025
Qingdao University of Science and Technology
2025
Ministry of Education of the People's Republic of China
2012-2024
Tianjin University of Science and Technology
2024
Shandong University of Science and Technology
2022-2024
A radical solution: Bu4NI/tert-butyl hydroperoxide (TBHP) catalyzed synthesis of amides through a cross-coupling reaction between acyl and aminyl radicals is described. This method involves the combination aldehyde CH bond functionalization decarbonylation N,N-disubstituted formamides (see scheme). The metal-free, has wide substrate scope, operational simplicity, gives high yields on scale-up. Detailed facts importance to specialist readers are published as "Supporting Information". Such...
The crème de la crème! A practical and simple Bu4NI-catalyzed CO bond formation was achieved by using a cross-dehydrogenative coupling (CDC) reaction with tert-butyl hydroperoxide (TBHP) as the ultimate oxidant (see scheme; R1=aryl, heteroaryl, alkyl; R2, R3=alkyl, alkyl halide). This approach is most straightforward method to date for synthesis of α-acyloxy ethers. plausible mechanism has been proposed. Detailed facts importance specialist readers are published "Supporting Information"....
A metal-free C–H oxidation for the construction of allylic esters has been developed. The use a commercially available and inexpensive catalyst oxidant, readily starting materials, coupled with operational simplicity reaction, renders methodology useful alternative to other approaches typically employed in synthesis esters.
The worldwide incidence trends of the lip, oral cavity, and pharyngeal cancers (LOCPs) need to be updated. This study aims examine temporal LOCPs from 1990 2017, using latest Global Burden Disease (GBD) data explore sex, age, regional differences. GBD for were driven by population cancer registries estimated mortality data. Age-standardized rates (ASIRs) directly extracted 2017 database calculate annual percentage change (EAPC) over period. Incidence are mapped compared separately sex...
The mechanism by which human cytomegalovirus (HCMV) stimulates oncogenesis is unclear. Because cellular immortalization and transformation require telomerase activation expression of the reverse transcriptase ( hTERT ) gene, we examined role HCMV in activation. Normal diploid fibroblasts (HDFs) malignant glioma (MG) cell lines were infected with or transfected vectors encoding immediate early (IE) antigen 72 86. promoter activity evaluated using transcription–polymerase chain reaction, a...
The catalytic oxidation of alkenes to α-diketones is unprecedented. A new alkenes, catalyzed by a ruthenium complex, which allows an efficient route using TBHP as oxidant described. This methodology highly functional group tolerant, practically convenient, requires no additional ligand, and operates under mild conditions with short reaction times. Based upon experimental observations, plausible mechanism proposed.
Monolithic integration of high-performance AlGaN/GaN high-electron mobility transistors (HEMTs) and blue light emitting diodes (LEDs) on sapphire substrates has been demonstrated by metal organic chemical vapor deposition selective growth technique. The integrated HEMT-LED exhibits a peak transconductance <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$(G_{m})$</tex> </formula> 244 mS/mm, maximum...
Abstract In the context of integrating culture and tourism, world heritage tourism research has become a focus in recent years. There are increasing discussions academic circles on content methods this field. Clarifying knowledge system is conducive to dialogue with international theoretical frontiers integrating, analyzing, predicting progress lineage from more comprehensive perspective. Still, few studies have been conducted. To fill gap, study uses SSCI SCI sub-databases Web Science Core...
The ecosystems and human social systems in karst areas are undergoing rapid development. In this context, effectively identifying changes the various functions of is crucial for formulating accurate sustainable development policies. However, few studies have discussed ecological, production, within an integrated framework. Therefore, paper utilizes comprehensive evaluation methods, standard deviation classification, coordination models to analyze spatiotemporal these from 2000 2020. results...
Raman lasers based on c-Nd:YVO4 crystals can generate 1178 nm Stokes line, which be frequency-doubled to realize 589 sodium lasers. We make comparative experimental studies of c-Nd:YVO4/YVO4 and self-Raman About these two kinds lasers, the output characteristics power, center wavelength beam quality are measured compared.
A monolithic high-resolution (individual pixel size 300times300 mum <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> ) active matrix (AM) programmed 8times8 micro-LED array was fabricated using flip-chip technology. The display composed of an AM panel and a LED microarray. included driving circuits p-type MOS transistors for each pixel. n-electrodes the pixels in microarray were connected together, p-electrodes to individual outputs on...
In this letter, we have described the design and fabrication of a novel backlight-unit (BLU)-free full-color light emitting diode (LED) based projector. The prototype used three active matrix addressable on silicon (LEDoS) micro-displays with peak emission wavelengths 630, 535, 445 nm. LEDoS were realized by integrating monolithic micro-LED arrays silicon-based integrated circuits using flip-chip bonding technique. Since are self-emitting, conventional BLUs in liquid crystal displays not...
A stable passively mode-locked Er-doped silica fiber laser with a fundamental repetition rate of up to 5 GHz is demonstrated, which, the best our knowledge, highest for 1.5 μm semiconductor saturable absorber mirror (SESAM) (EDF) lasers. segment commercially available EDF net gain coefficient 1 dB/cm employed as medium. The compact Fabry-Pérot (FP) cavity features mirror, namely multiple-layer dielectric films (DFs) directly coated on end facet passive ferrule, enabling short length 2 cm...
A stabilized coherent narrow-linewidth Brillouin random fiber laser with low lasing noise is proposed and investigated experimentally, which employs stimulated scattering Rayleigh in optical fibers to provide the gain distributed feedback, respectively. The output suppressed realized utilizing a simple structure of double-coupler ring resonator, composed section single-mode two couplers different coupling ratios. Compared existing free-running lasers, much more can be obtained as resonator...
A network intrusion detection tool can identify and detect potential malicious activities or attacks by monitoring traffic system logs. The data within networks possesses characteristics that include a high degree of feature dimension an unbalanced distribution across categories. Currently, the actual accuracy some models is relatively low. To solve these problems, we propose model based on multi-head attention BiLSTM (Bidirectional Long Short-Term Memory), which introduce different weights...