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| 1 | Deep-learning-based phase control method for tiled aperture coherent beam combining systems显示文摘We incorporate deep learning(DL)into tiled aperture coherent beam combining(CBC)systems for the first time,to the best of our knowledge.By using a well-trained convolutional neural network DL model,which has been constructed at a non-focal-plane to avoid the data collision problem,the relative phase of each beamlet could be accurately estimated,and then the phase error in the CBC system could be compensated directly by a servo phase control system.The feasibility and extensibility of the phase control method have been demonstrated by simulating the coherent combining of different hexagonal arrays.This DL-based phase control method offers a new way of eliminating dynamic phase noise in tiled aperture CBC systems,and it could provide a valuable reference on alleviating the long-standing problem that the phase control bandwidth decreases as the number of array elements increases. | Tianyue Hou Yi An Qi Chang Pengfei Ma Jun Li Dong Zhi Liangjin Huang Rongtao Su Jian Wu Yanxing Ma Pu Zhou | 2019 | High Power Laser Science and Engineering2019，7，4： | 10 |
| 2 | Deep-learning-assisted, two-stage phase control method for high-power mode-programmable orbital angular momentum beam generation显示文摘High-power mode-programmable orbital angular momentum(OAM)beams have received substantial attention in recent years.They are widely used in optical communication,nonlinear frequency conversion,and laser processing.To overcome the power limitation of a single beam,coherent beam combining(CBC)of laser arrays is used.However,in specific CBC systems used to generate structured light with a complex wavefront,eliminating phase noise and realizing flexible phase modulation proved to be difficult challenges.In this paper,we propose and demonstrate a two-stage phase control method that can generate OAM beams with different topological charges from a CBC system.During the phase control process,the phase errors are preliminarily compensated by a deep-learning(DL)network,and further eliminated by an optimization algorithm.Moreover,by modulating the expected relative phase vector and cost function,all-electronic flexible programmable switching of the OAM mode is realized.Results indicate that the proposed method combines the characteristics of DL for undesired convergent phase avoidance and the advantages of the optimization algorithm for accuracy improvement,thereby ensuring the high mode purity of the generated OAM beams.This work could provide a valuable reference for future implementation of high-power,fast switchable structured light generation and manipulation. | TIANYUE HOU YI AN QI CHANG PENGFEI MA JUN LI LIANGJIN HUANG DONG ZHI JIAN WU RONGTAO SU YANXING MA PU ZHOU | 2020 | Photonics Research2020，8，5： | 8 |
| 3 | Progress and Strategies in Cross Breeding of Poplars in China显示文摘The advance in intrasection and intersection cross breeding of poplars in China over the past 50 years is reviewed. Great progress has been made in Sections Leuce and Aigeiros, and satisfactory results of intersection hybridization have been achieved in the crossing between Sections Tacamahaca and Aigeiros. The modes of hybridization include single cross, double cross, triple cross, backcross, etc. It is known that using hybrids as parents to cross with other species or hybrids is an effective and easy way to obtain heterosis. Fast growth, cold and drought tolerance, pest and disease resistance, narrow crowns and rootage, etc. are breeding goals. The conventional artificial crossing is still a major breeding method, and a combination of the conventional artificial crossing with physical radiation and chemical induction can create new triploid individuals that possess higher yield potential. The super clones cultivated have already displayed enormous socioeconomic and ecological benefits in practice. Finally, the problems that investigators have to face at present are discussed as well as some strategies in poplar cross breeding in China. | Li Shan-wen Zhang Zhi-yi Luo Jun-min He Cheng-zhong Pu Ying-shan An Xin-min | 2005 | Forestry Studies in China2005，7，3： | 6 |
| 4 | Wall shear stress in portal vein of cirrhotic patients with portal hypertension显示文摘AIM To investigate wall shear stress(WSS) magnitude and distribution in cirrhotic patients with portal hypertension using computational fluid dynamics. METHODS Idealized portal vein(PV) system models were reconstructed with different angles of the PV-splenic vein(SV) and superior mesenteric vein(SMV)-SV. Patient-specific models were created according to enhanced computed tomography images. WSS was simulated by using a finite-element analyzer, regarding the blood as a Newtonian fluid and the vessel as a rigid wall. Analysis was carried out to compare the WSSin the portal hypertension group with that in healthy controls.RESULTS For the idealized models, WSS in the portal hypertension group(0-10 dyn/cm2) was significantly lower than that in the healthy controls(10-20 dyn/cm2), and low WSS area(0-1 dyn/cm2) only occurred in the left wall of the PV in the portal hypertension group. Different angles of PV-SV and SMV-SV had different effects on the magnitude and distribution of WSS, and low WSS area often occurred in smaller PV-SV angle and larger SMV-SV angle. In the patient-specific models, WSS in the cirrhotic patients with portal hypertension(10.13 ± 1.34 dyn/cm2) was also significantly lower than that in the healthy controls(P < 0.05). Low WSS area often occurred in the junction area of SV and SMV into the PV, in the area of the division of PV into left and right PV, and in the outer wall of the curving SV in the control group. In the cirrhotic patients with portal hypertension, the low WSS area extended to wider levels and the magnitude of WSS reached lower levels, thereby being more prone to disturbed flow occurrence.CONCLUSION Cirrhotic patients with portal hypertension show dramatic hemodynamic changes with lower WSS and greater potential for disturbed flow, representing a possible causative factor of PV thrombosis. | Wei Wei Yan-Song Pu Xin-Kai Wang An Jiang Rui Zhou Yu Li Qiu-Juan Zhang Ya-Juan Wei Bin Chen Zong-Fang Li | 2017 | World Journal of Gastroenterology2017，23，18： | 6 |
| 5 | Functional Fibers and Functional Fiber‑Based Components for High‑Power Lasers显示文摘The success of high-power fiber lasers is fueled by maturation of active and passive fibers,combined with the availability of high-power fiber-based components.In this contribution,we first overview the enormous potential of rare-earth doped fibers in spectral coverage and recent developments of key fiber-based components employed in high-power laser systems.Subsequently,the emerging functional active and passive fibers in recent years,which exhibit tremendous advantages in balancing or mitigating parasitic nonlinearities hindering high-power transmission,are outlined from the perspectives of geo-metric and material engineering.Finally,novel functional applications of conventional fiber-based components for nonlinear suppression or spatial mode selection,and correspondingly,the high-power progress of function fiber-based components in power handling are introduced,which suggest more flexible controllability on high-power laser operations. | Xiao Chen Tianfu Yao Liangjin Huang Yi An Hanshuo Wu Zhiyong Pan Pu Zhou | 2023 | Advanced Fiber Materials2023，5，1： | 5 |
| 6 | Selective catalytic hydrogenation of naphthalene to tetralin over a NiMo/Al2O3 catalyst显示文摘The selective catalytic hydrogenation of naphthalene to high-value tetralin was systematically investigated.A series of Al2O3 catalysts containing different active metals(Co,Mo,Ni,W)were prepared by incipient wetness impregnation.The effects of different active metals forms(oxidation,reduction,sulfuration)and reaction conditions on naphthalene hydrogenation were investigated and the catalysts were characterized by XRD,XPS,BET,NH3-TPD and SEM.Especially,Ni-Mo/Al2O3 was first used in this reactive system.The results show that the oxidative4%Ni O-20%MoO3/Al2O3 is the best catalyst for the preparation of tetralin.The conversion of naphthalene and the selectivity of tetralin can reach 95.62%and 99.75%respectively at 200℃,8 h and 6 MPa.Compared with reduced and sulfureted 4%Ni O-20%MoO3/Al2O3 catalysts,oxidative 4%Ni O-20%MoO3/Al2O3 has a well dispersed and uniform monolayer of the active metals,larger pore volume and size,and larger total acidity.NiO-MoO3/Al2O3 has a synergistic effect between NiO activity and MoO3 selectivity. | Xiaoping Su Pu An Junwen Gao RuchengWang Yujuan Zhang Xi Li Yangkun Zhao Yongqi Liu Xiaoxun Ma Ming Sun | 2020 | Chinese Journal of Chemical Engineering2020，28，10： | 4 |
| 7 | Transverse mode instability mitigation in a high-power confined-doped fiber amplifier with good beam quality through seed laser control显示文摘In this work,a confined-doped fiber with the core/inner-cladding diameter of 40/250μm and a relative doping ratio of 0.75 is fabricated through a modified chemical vapor deposition method combined with the chelate gas deposition technique,and subsequently applied in a tandem-pumped fiber amplifier for high-power operation and transverse mode instability(TMI)mitigation.Notably,the impacts of the seed laser power and mode purity are preliminarily investigated through comparative experiments.It is found that the TMI threshold could be significantly affected by the seed laser mode purity.The possible mechanism behind this phenomenon is proposed and revealed through comprehensive comparative experiments and theoretical analysis.Finally,a maximum output power of 7.49 kW is obtained with the beam quality factor of approximately 1.83,which is the highest output power ever reported in a forward tandem-pumped confined-doped fiber amplifier.This work could provide a good reference and practical solution to improve the TMI threshold and realize high-power high-brightness fiber lasers. | Hanshuo Wu Haobo Li Yi An Ruixian Li Xiao Chen Hu Xiao Liangjin Huang Huan Yang Zhiping Yan Jinyong Leng Zhiyong Pan Pu Zhou | 2022 | High Power Laser Science and Engineering2022，10，6： | 3 |
| 8 | Unfolding the fast neutron spectra of a BC501A liquid scintillation detector using GRAVEL method显示文摘Accurate knowledge of the neutron energy spectra is useful in basic research and applications. The overall procedure of measuring and unfolding the fast neutron energy spectra with BC501 A liquid scintillation detector is described. The recoil proton spectrum of 241Am-Be neutrons was obtained experimentally. With the NRESP7 code, the response matrix of detector was simulated.Combining the recoil proton spectrum and response matrix, the unfolding of neutron spectra was performed by GRAVEL iterative algorithm. A MatLab program based on the GRAVEL method was developed. The continuous neutron spectrum of 241Am-Be source and monoenergetic neutron spectrum of D-T source have been unfolded successfully and are in good agreement with their standard reference spectra. The unfolded 241Am-Be spectrum are more accurate than the spectra unfolded by artificial neural networks in recent years. | CHEN YongHao CHEN XiMeng LEI JiaRong AN Li ZHANG XiaoDong SHAO JianXiong ZHENG Pu WANG XinHua | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，10： | 3 |
| 9 | Effects of Ta Addition on NiTi Shape Memory Alloys显示文摘The effect of Ta addition on the martensitic transformation characteristics and the X-ray visibility on NiTi shape memory alloy have been studied in (Ni51Ti49)1-x Tax system. It was found that the transformation temperatures of the Ni51Ti49 binary alloy increased drastically by an addition of 0-4 at. pct Ta, but only slightly when the concentration exceeded 4 at. pct, the addition of Ta greatly decreases the sensitivity of the martensitic transformations to the variation in the Ni-Ti ratio. The addition of Ta to the NiTi binary alloy can improve its X-ray visibility. | Jianlu MA, Jiangnan LIU+, Zhengpin WANG and Fei XUE (Dept. of Materials Science & Engineering, Xi’an Institute of Technology, Xi’an 710032, China) Kuang-Hsi WU and Zhongjie PU (Department of Mechanical Engineering, Florida International University, USA) | 2000 | Journal of Materials Science & Technology2000，16，5： | 3 |
| 10 | Ent-kaurane and ent-abietane diterpenoids from Isodon phyllostachys显示文摘Four new diterpenoids, phyllostachysins I–L(1–4), along with a known one, hebeiabinin B(5), were isolated from the aerial parts of Isodon phyllostachys(I. phyllostachys). Compounds 1 and 2 feature an ent-kaurane backbone, and 3, 4 and 5 bear an ent-abietane skeleton. Their structures were elucidated by means of spectroscopic analysis. Compounds 3 and 4 exhibited significant cytotoxic activity against human tumor cell lines(HL-60, SMMC-7721, A-549, MCF-7 and SW-480), and strongly inhibited NO production in LPS-stimulated RAW264.7 cells. | Jin Yang Yaqi An Haiyan Wu Miao Liu Weiguang Wang Xue Du Yan Li Jianxin Pu Handong Sun | 2016 | Science China Chemistry2016，59，9： | 2 |
| 11 | Neutron response functions and detection efficiency of a spherical proton recoil proportional counter显示文摘The neutron response function and detection efficiency of a spherical proton recoil proportional counter (SP) play key roles in precise measurement of neutron spectra of the interior materials.In this paper,the response functions and detection efficiency of three SPs developed at CAEP are simulated by Geant4.The simulated spectra are compared with pulse-height spectra measured at 0.165,0.575,1.4,and 14.1 MeV of incident neutrons.And the calculated detector efficiencies agree within 5%with the data obtained by neutron activation. | Wang Xinhua He Tie Guo Haiping An Li Zhen Pu Mou Yunfeng Yang Jian | 2010 | Nuclear Science and Techniques2010，21，6： | 2 |
| 12 | THEMIS statistical study on the plasma properties of high-speed flows in Earth's magnetotail显示文摘Using Time History of Events and Macroscale Interactions during Substorms(THEMIS) observations from 2007 to 2011 tail seasons, we study the plasma properties of high speed flows(HSFs) and background plasma sheet events(BPSs) in Earth's magnetotail(|Y_(GSM)|<13R_E, |Z_(GSM)|<5R_E, –30R_E | PAN Dong Xiao SUN Wei Jie SHI Quan Qi TIAN An Min YAO Zhong Hua FU Sui Yan ZONG Qiu Gang ZHOU Xu Zhi PU Zu Yin | 2016 | Science China Earth Sciences2016，59，3： | 2 |
| 13 | Analysis of the genetic diversity and relationships among and within species of Hippophae (Elaeognaceae ) based on RAPD markers 显示文摘 | SHENG H M AN LZ CHEN T XU S J LIU G X ZHENGX L PU L L LIU Y J LIAN Y S | 2006 | Plant Systematics and Evolution2006，260，： | 1 |
| 14 | DJ-1 protein protects dopaminergic neurons against 6-OHDA/Mg-132-induced neurotoxicity in rats 显示文摘 | Sun SY An CN Pu XP | 2012 | Brain Res Bull2012，88，6： | 1 |
| 15 | Diatom-inspired multiscale mineralization of patterned protein-polysaccharide complex structures显示文摘Marine diatoms construct their hierarchically ordered,three-dimensional(3D)external structures called frustules through precise biomineralization processes.Recapitulating the remarkable architectures and functions of diatom frustules in artificial materials is a major challenge that has important technological implications for hierarchically ordered composites.Here,we report the construction of highly ordered,mineralized composites based on fabrication of complex self-supporting porous structures—made of genetically engineered amyloid fusion proteins and the natural polysaccharide chitin—and performing in situ multiscale protein-mediated mineralization with diverse inorganic materials,including SiO_(2),TiO_(2)and Ga_(2)O_(3).Subsequently,using sugar cubes as templates,we demonstrate that 3D fabricated porous structures can become colonized by engineered bacteria and can be functionalized with highly photoreactive minerals,thereby enabling co-localization of the photocatalytic units with a bacteria-based hydrogenase reaction for a successful semi-solid artificial photosynthesis system for hydrogen evolution.Our study thus highlights the power of coupling genetically engineered proteins and polysaccharides with biofabrication techniques to generate hierarchically organized mineralized porous structures inspired by nature. | Ke Li Yingfeng Li Xinyu Wang Mengkui Cui Bolin An Jiahua Pu Jintao Liu Boyang Zhang Guijun Ma Chao Zhong | 2021 | National Science Review2021，8，8： | 1 |
| 16 | Protocatechuic acid in- hibits neurotoxicity induced by MPTP in vivo 显示文摘 | Zhang HN An CN Pu XP | 2010 | Neuros- ci Lett2010，474，2： | 1 |
| 17 | Protocatechuic acid inhib- its neurotoxicity induced by MPTP in vivo 显示文摘 | Zhang HN An CN Pu XP | 2010 | Neurosci Lett2010，474，2： | 1 |
| 18 | Extraction of Flavonoids and Polyphenols from Coronatinetreated Mulberry Leaves and Evaluation of Their Antibacterial Activity against Pseudomonas syringae显示文摘Flavonoids and polyphenols are the main secondary metabolites in mulberry leaves,which have multiple biological functions such as antibacterial activity,free radical scavenging activity and antioxidant activity.In this paper,the parameters for the extraction of flavonoids and polyphenols from coronatine(COR)-treated mulberry leaves were optimized,and the components of the extracts were analyzed by high performance liquid chromatography(HPLC),and their antibacterial activity against Pseudomonas syringae,which causes mulberry bacterial blight,was evaluated in vitro to explore the mechanism how COR acted as a plant immune elicitor to improve the resistance of mulberry to bacterial blight.The results showed that ethanol concentration of 70%,extraction temperature of 80℃,extraction duration of 6 h and solid-liquid ratio of 1∶40 were the optimal parameters for the extraction of flavonoids and polyphenols from mulberry leaves.Flavonoids and polyphenols were mostly distributed in ethyl acetate and n-butyl alcohol fractions which showed better antibacterial activity than petroleum ether,dichloromethane and water fractions.Meanwhile,the antibacterial activity of ethyl acetate and n-butyl alcohol fractions of COR-treated mulberry leaves were more evident than that of water-treated mulberry leaves.Scanning electron microscopy showed that flavonoids and polyphenols inhibited the growth of pathogenic bacteria by changing cell morphology,damaging cell wall structure and unbalancing cell osmotic pressure.HPLC analysis confirmed the contents of morin,quercetin,quercitrin,kaempferol,chlorogenic acid and rutin were increased to a different extent in COR-treated mulberry leaves.So it can be concluded that the increased contents of flavonoids and polyphenols induced by COR may be one of the reasons for the enhanced resistance to mulberry bacterial blight. | Na WANG Yanliang CHU Yurui PU Fu'an WU | 2017 | Agricultural Biotechnology2017，6，4： | 1 |
| 19 | A sensitive immunoassay based on direct hapten coated format and biotin–streptavidin system for the detection of chloramphenicol显示文摘 | Na Sai Yiping Chen Nan Liu Guanggui Yu Pu Su Yi Feng Zhijiang Zhou Xiaoyu Liu Huanying Zhou Zhixian Gao Bao an Ning | 2010 | Talanta2010，，4： | 1 |
| 20 | Journal of Human Genetics显示文摘 | Ouyang X M Yan D Yuan H J Pu D Du L L H an D Y Liu X Z | 2009 | 54(3) :1312009，54，3： | 1 |
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