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| 1 | 152 W high-power blue diode laser operated at 447 nm显示文摘We demonstrate a high-power blue diode laser operated at 447 nm combining laser diodes using an optical fiber bundle. As many as 127 diode lasers at 447 nm were coupled into 400 μm/0.22 NA fibers using an aspherical lens group with different focus lengths. The bare fibers were mechanically bundled through high temperature ultraviolet adhesive after the coatings of the 127 fibers were stripped. The diameter of the fiber bundle was 6 mm. The total output power of such a bundle was 152 W with electro-optical conversion efficiency of 27.56%and the RMS power instability was less than ±1% within 3 h. | Peng Wu Ling Zhang Haijuan Yu Xiandan Yuan Zhiyan Zhang Pengfei Zhao Shuzhen Zou Chaojian He Yaoyao Qi Yingying Yang Gang Li Xubao Wang Xuechun Lin | 2017 | Journal of Semiconductors2017，38，7： | 4 |
| 2 | Large-scale genome-wide scans do not support petaloid toenail as a Mendelian trait显示文摘Petaloid toenail,or accessory nail of the fifth toe,is a physical trait characterized by the presence of an additional tiny toenail on the small toe.Since it can occasionally cause disfigurement and tenderness while wearing tight shoes or walking,standard surgical matricectomy is often carried out to repair the petaloid toenail(Chi and Wang,2004).Chinese legends recorded petaloid | Manfei Zhang Sijie Wu Juan Zhang Yajun Yang Jingze Tan Haijuan Guan Yu Liu Kun Tang Jean Krutmann Shuhua Xu Li Jin Yaqun Guan Hui Li Sijia Wang | 2016 | Journal of Genetics and Genomics2016，43，12： | 2 |
| 3 | Self-catalyzed formation of strongly interconnected multiphase molybdenum-based composites for efficient hydrogen evolution显示文摘Molybdenum carbide(MoxC)with variable phase structure possesses flexible hydrogen-binding energy(HBE),which is a promising hydrogen evolution reaction(HER)catalyst.Herein,a hybrid multiphase MoxC freestanding film coupled with Co3Mo(CM/MoxC@NC)is synthesized through the electrospinning method supplemented by the heteroatom incorporation.CM/MoxC@NC surpasses its pure phase counterparts and exhibits remarkable catalytic activity at 114mV to deliver a current density of 10mA cm^(−2) in acid,which is among the first-rate level performance reported for MoxC-based catalysts.The subsequent ex situ and in situ characterizations reveal a phase transition mechanism based on self-catalysis that CoOx depletes the coordinated C ofα-MoC via the interaction,which realizes the assembly of weak HBEα-MoC and strong HBEβ-Mo2C,and the enhanced utilization of active materials as well.The multiple structures with optimal HBE are in favor of the stepwise reactions of HER,as the study of the correlation between HBE and phase structure revealed.This study discloses the underlying phase transition mechanism and highlights the HBE–structure relationship that should be considered for catalyst design. | Jiani Chen Haijuan Zhang Jie Yu Daqin Guan Sixuan She Wei Zhou Zongping Shao | 2022 | Carbon Energy2022，4，1： | 2 |
| 4 | Design of coherent wideband radiation process in a Nd3+-doped high entropy glass system显示文摘We discover that the spatially coherent radiation within a certain frequency range can be obtained without a common nonlinear optical process.Conventionally,the emission spectra were obtained by de-exciting excited centers from real excited energy levels to the ground state.Our findings are achieved by deploying a high-entropy glass system(HEGS)doped with neodymium ions.The HEGS exhibits a much broader infrared absorption than common glass systems,which can be attributed to be high-frequency optical branch phonons or allowable multi-phonon processes caused by phonon broadening in the system.A broadened phonon-assisted wideband radiation(BPAWR)is induced if the pump laser is absorbed by the system.The subsequent low-threshold self-absorption coherence modulation(SACM)can be controlled by changing excitation wavelengths,sample size,and doping concentrations.The SACM can be red-shifted through the emission of phonons of the excited species and be blue-shifted by absorbing phonons before they are de-excited.There is a time delay up to 1.66 ns between the pump pulse and the BPAWR when measured after traveling through a 35 mm long sample,which is much longer than the Raman process.The BPAWR-SACM can amplify the centered non-absorption band with a gain up to 26.02 dB.These results reveal that the shift of the novel radiation is determined by the frequency of the non-absorption band near the absorption region,and therefore the emission shifts can be modulated by changing the absorption spectrum.When used in fiber lasers,the BPAWR-SACM process may help to achieve tunability. | LINDE ZHANG JINGYUAN ZHANG XIANG WANG MENG TAO GANGTAO DAI JING WU ZHANGWANG MIAO SHIFEI HAN HAIJUAN YU Xuechun Lin | 2022 | Light(Science & Applications)2022，11，9： | 1 |
| 5 | A dual-RPA based lateral flow strip for sensitive,on-site detection of CP4-EPSPS and Cry1Ab/Ac genes in genetically modified crops显示文摘Traditional transgenic detection methods require high test conditions and struggle to be both sensitive and efficient.In this study,a one-tube dual recombinase polymerase amplification(RPA)reaction system for CP4-EPSPS and Cry1Ab/Ac was proposed and combined with a lateral flow immunochromatographic assay,named“Dual-RPA-LFD”,to visualize the dual detection of genetically modified(GM)crops.In which,the herbicide tolerance gene CP4-EPSPS and the insect resistance gene Cry1Ab/Ac were selected as targets taking into account the current status of the most widespread application of insect resistance and herbicide tolerance traits and their stacked traits.Gradient diluted plasmids,transgenic standards,and actual samples were used as templates to conduct sensitivity,specificity,and practicality assays,respectively.The constructed method achieved the visual detection of plasmid at levels as low as 100 copies,demonstrating its high sensitivity.In addition,good applicability to transgenic samples was observed,with no cross-interference between two test lines and no influence from other genes.In conclusion,this strategy achieved the expected purpose of simultaneous detection of the two popular targets in GM crops within 20 min at 37°C in a rapid,equipmentfree field manner,providing a new alternative for rapid screening for transgenic assays in the field. | Jinbin Wang Yu Wang Xiuwen Hu Yifan Chen Wei Jiang Xiaofeng Liu Juan Liu Lemei Zhu Haijuan Zeng Hua Liu | 2024 | Food Science and Human Wellness2024，13，1： | 1 |
| 6 | 1.2 kW all-fiber narrow-linewidth picosecond MOPA system显示文摘Achieving an all-fiber ultra-fast system with above kW average power and mJ pulse energy is extremely challenging.This paper demonstrated a picosecond monolithic master oscillator power amplifier system at a 25 MHz repetition frequency with an average power of approximately 1.2 kW,a pulse energy of approximately 48μJ and a peak power of approximately 0.45 MW.The nonlinear effects were suppressed by adopting a dispersion stretched seed pulse(with a narrow linewidth of 0.052 nm)and a multi-mode master amplifier with an extra-large mode area;then an ultimate narrow bandwidth of 1.32 nm and a moderately broadened pulse of approximately 107 ps were achieved.Meanwhile,the great spatio-temporal stability was verified experimentally,and no sign of transverse mode instability appeared even at the maximum output power.The system has shown great power and energy capability with a sacrificed beam propagation product of 5.28 mm·mrad.In addition,further scaling of the peak power and pulse energy can be achieved by employing a lower repetition and a conventional compressor. | Jiexi Zuo Haijuan Yu Shuzhen Zou Zhiyong Dong Chaojian He Shuang Xu Chaoyu Ning Xuechun Chen Xinyao Li Xuechun Lin | 2023 | High Power Laser Science and Engineering2023，11，2： | 0 |
| 7 | Axially Chiral Dodecanuclear Lanthanide Clusters Constructed by“Bottom-Up” Self-assembly for Enantioselective Sensing显示文摘Via the bottom-up synthetic strategy,we synthesized a pair of dodecanuclear metal clusters of Eu_(12)(C_(2)O_(4))_(9)(R/S-BNP)_(18)(EtOH)_(6)-(H_(2)0)_(6)·8EtOH-7H_(2)0(complex 2),which represent the largest axial chiral lanthanide metal clusters.In the structure,rare four-pointed star coordination mode of oxalic acid is reported by this work.In addition,as a fluorescence sensor,the complex 2 exhibits high enantioselectivity for R-/S-BINOL-TF_(2)(EF=2.87)and other chiral binaphthyl derivatives. | Honglei Zhao Dongxu Cui Junning Kou Haijuan Gao Guanghui Yu Chunyi Sun Xinlong Wang Zhongmin Su | 2022 | Chinese Journal of Chemistry2022，40，10： | 0 |
| 8 | Analyzing close relations between target artifacts for improving IR-based requirement traceability recovery显示文摘Requirement traceability is an important and costly task that creates trace links from requirements to different software artifacts.These trace links can help engineers reduce the time and complexity of software maintenance.The information retrieval(IR)technique has been widely used in requirement traceability.It uses the textual similarity between software artifacts to create links.However,if two artifacts do not share or share only a small number of words,the performance of the IR can be very poor.Some methods have been developed to enhance the IR by considering relations between target artifacts,but they have been limited to code rather than to other types of target artifacts.To overcome this limitation,we propose an automatic method that combines the IR method with the close relations between target artifacts.Specifically,we leverage close relations between target artifacts rather than just text matching from requirements to target artifacts.Moreover,the method is not limited to the type of target artifacts when considering the relations between target artifacts.We conduct experiments on five public datasets and take account of trace links between requirements and different types of software artifacts.Results show that under the same recall,the precisions on the five datasets improve by 40%,8%,20%,4%,and6%,respectively,compared with the baseline method.The precision on the five datasets improves by an average of15.6%,showing that our method outperforms the baseline method when working under the same conditions. | Haijuan WANG Guohua SHEN Zhiqiu HUANG Yaoshen YU Kai CHEN | 2021 | Frontiers of Information Technology & Electronic Engineering2021，22，7： | 0 |
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