|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Vertically standing PtSe_2 film: a saturable absorber for a passively mode-locked Nd:LuVO_4 laser显示文摘The novel vertically standing Pt Se2 film on transparent quartz was prepared by selenization of platinum film deposited by the magnetron sputtering method, and an Nd:Lu VO4 passively mode-locked solid-state laser was realized by using the fabricated Pt Se2 film as a saturable absorber. The X-ray diffraction pattern and Raman spectrum of the film indicate its good crystallinity with a layered structure. The thickness of Pt Se2 film is measured to be 24 nm according to the cross-section height profile of the atomic force microscope image. Highresolution transmission electron microscopy images clearly demonstrate its vertically standing structure with an interlayer distance of 0.54 nm along the c-axis direction. The modulation depth(ΔT) and saturation fluence(Φs)of Pt Se2 film are measured to be 12.6% and 17.1 μJ∕cm2, respectively. The obtained mode-locked laser spectrum has a central wavelength of 1066.573 nm, with a 3 d B bandwidth of 0.106 nm. The transform limited pulse width of the mode-locked laser was calculated to be 15.8 ps. A maximum average output power of 180 m W with a working repetition rate of 61.3 MHz is obtained. To the best of our knowledge, this is the first report of the generation of ultrafast mode-locked laser pulses by using layered Pt Se2 as a saturable absorber. | LILI TAO XIAOWEN HUANG JUNSHAN HE YAJUN LOU LONGHUI ZENG YONGHUI LI HUI LONG JINGBO LI LING ZHANG YUEN HONG TSANG | 2018 | Photonics Research2018，6，7： | 8 |
| 2 | Research on proton radiation effects on CMOS image sensors with experimental and particle transport simulation methods显示文摘Recently,complementary metal-oxide semiconductor image sensors(CISs)have become a key element of the imaging instrument and have been widely used in many scientific applications[1,2]such as space remote sensing,medical imaging,and nuclear power plant monitoring.However,CISs used in these harsh radiation environments are susceptible to damage by particles or rays. | Yuanyuan XUE Zujun WANG Minbo LIU Baoping HE Zhibin YAO Jiangkun SHENG Wuying MA Guantao DONG Junshan JIN | 2017 | Science China(Information Sciences)2017，60，12： | 6 |
| 3 | esveratrol inhibits necroptosis by mediating the TNF-α/RIP1/RIP3/MLKL pathway in myocardial hypoxia/reoxygenation injury显示文摘Resveratrol(RES)protects myocardial cells from hypoxia/reoxygenation(H/R)-caused injury.However,the mechanism of this effect has not been clarified.Thus,in this study,we aimed to determine whether RES attenuates H/R-induced cell necroptosis by inhibiting the tumor necrosis factor-alpha(TNF-α)/receptor-interacting protein kinase 1(RIP1)/RIP3/mixed-lineage kinase domain-like(MLKL)signaling pathway.Rat myocardial ischemia/reperfusion(I/R)models and H/R-injured cell models were constructed.Our study showed that myocardial H/R injury significantly increased the levels of TNF-α,RIP1,RIP3,and p-MLKL/MLKL by western blot analysis.Cell viability assay and 4,6-dianmidino-2-phenylindole(DAPI)-propidium iodide staining showed that the cell viability was decreased,and necroptosis was increased after myocardial H/R injury.The expressions of TNF-α,RIP1,RIP3,and p-MLKL/MLKL in H/R myocardial cells treated with different concentrations of RES were significantly downregulated.In addition,we also found that the cell viability was increased and necroptosis was decreased in dose-dependent manners when H/R-injured cells were treated with RES.In addition,the enhanced effect of TNF-αon necroptosis in myocardial H/R-injured cells was improved by RES,and the effect of RES was confirmed in vivo in I/R rats.This study also showed that RES suppresses necroptosis in H9c2 cells,which may occur through the inhibition of the TNF-α/RIP1/RIP3/MLKL signaling pathway.Our data suggest that necroptosis is a promising therapeutic target and may be a promising therapeutic target for the treatment of myocardial I/R injury. | Yongjun Hu Hongwei Pan Jianqiang Peng Jin He Mingxiang Tang Sulan Yan Jingjing Rong Junshan Li Zhaofen Zheng Haijun Wang Yanfu Liu Xin Zhong | 2021 | Acta Biochimica et Biophysica Sinica2021，53，4： | 6 |
| 4 | Enhancing upconversion of Nd3+ through Yb^(3+)-mediated energy cycling towards temperature sensing显示文摘Photon upconversion of lanthanides has been a powerful means to convert low-energy photons into high-energy ones.However,in contrast to the mostly investigated lanthanide ions,it has remained a challenge for the efficient upconversion of Nd^(3+)due to the deleterious concentration quenching effect.Here we report an efficient strategy to enhance the upconversion of Nd^(3+)through the Yb^(3+)-mediated energy cycling in a core-shell-shell nanostructure.Both Nd^(3+)and Yb^(3+)are confined in the interlayer,and the presence of Yb^(3+)in the Nd-sublattice provides a more matched energy for the upconversion transitions occurring at the intermediate state of Nd^(3+)towards much better population at its emissive levels.Moreover,this design also minimizes the possible cross-relaxation processes at both intermediate level and the emissive levels of Nd^(3+)which are the primary factors limiting the upconversion performance for the Nd^(3+)-doped materials.Such energy cycling-enhanced upconversion shows promise in temperature sensing. | Nan Song Songbin Liu Peng Zhang Junshan He Qinyuan Zhang Feng Wang Bo Zhou | 2021 | Journal of Rare Earths2021，39，12： | 3 |
| 5 | Modeling dark signal of CMOS image sensors irradiated by reactor neutron using Monte Carlo method显示文摘The dark signal degradation of the CMOS image sensor(CIS) was induced by neutron radiation,and it was modeled by Geant4, which is a three-dimensional Monte Carlo code. The simplified model of the CIS array was established according to the actual pixel geometry, material, and doping concentration. Nuclear elastic interaction and capture interaction were included in the physical processes, and the displacement damage dose in the space charge region of the pixel was calculated. The mean dark signal and dark signal distribution were modeled using Geant4, and the physical mechanisms were analyzed. The modeling results were in good agreement with the experimental and theoretical results. | Yuanyuan XUE Zuun WANG Wei CHEN Baoping HE Zhibin YAO Minbo LIU Jiangkun SHENG Wuying MA Guantao DONG Junshan JIN | 2018 | Science China(Information Sciences)2018，61，6： | 2 |
| 6 | Robust, secure, andcost-effective design for Cyber-Physical Systems显示文摘 | Dong Hoon Shin He Shibo Zhang Junshan | 2014 | IntelligentSystems IEEE2014，29，1： | 1 |
| 7 | Online dynamic security assessment with missing PMU measurements:a data mining approach显示文摘 | He Miao Vittal Vijay Zhang Junshan | 2013 | IEEE Transactions on Power Systems2013，28，4： | 1 |
| 8 | A peptide fusion protein inhibits angiogenesis and tumor growth by blocking VEGF binding to KDR显示文摘Vascular endothelial growth factor (VEGF) binding to its tyrosine kinase receptors (KDR/FLK1, Flt-1) induces angiogenesis. In search of the peptides blocking VEGF binding to its receptor KDR/FLK1 to inhibit tumor-angiogenesis and growth, we screened a phage display pep-tide library with KDR as target protein, and some candidate peptides were isolated. In this study, we cloned the DNA fragment coding the peptide K237 from the library, into a vector pQE42 to express fusion protein DHFR-K237 in E. coli M15. The affection of fusion protein DHFR-K237 on endothelial cell proliferation and angiogenesis was investigated. In vitro, DHFR-K237 could completely block VEGF binding to KDR and significantly inhibit the VEGF-medi-ated proliferation of the human vascular endothelial cells. In vivo, DHFR-K237 inhibited angiogenesis in chick embryo chorioa- llantoric membrane and tumor growth in nude mice. These results suggest that K237 is an effective antagonist of VEGF binding to KDR, and could be a potential agent | LEI Hetian SHOU Chengchao LIU Xiaoyin HE Luowen WU Jian JIANG Beihai LIU Meisheng YANG Junshan | 2002 | Chinese Science Bulletin2002，47，8： | 1 |
| 9 | Robust, secure, and cost-effective design for cyber-physical systems 显示文摘 | Dong-Hoon Shin Shibo He Junshan Zhang | 2014 | Proc IEEE2014，29，1： | 1 |
| 10 | Effects of sucrose and urea on soy hull pectic polysaccharide gel induced by d -glucono-1,5-lactone显示文摘 | He Liu Qinghua Li Danshi Zhu Jun Li Junshan Liu Ping Geng Yutang He | 2013 | Carbohydrate Polymers2013，，1： | 1 |
| 11 | Robust online dynamic security assessmem using adaptive ensemble decision- tree learning 显示文摘 | HE Miao ZHANG Junshan VITTAL V | 2013 | 1EEE Trans on Power Systems2013，28，40： | 1 |
| 12 | Online dynamic security assessment with missing PMU measurements: a data mining approach显示文摘 | He Miao Vittal V Zhang Junshan | 2013 | IEEE Transactions on Power Systems2013，28，2： | 1 |
| 13 | Preparation of ultrathin ReS2 nanosheets and their application to Q-switched Er-doped fiber lasers显示文摘We study the exfoliation of ultrathin ReS2 nanosheets from the prepared ReS2 powder and their application to Q-switched Er-doped fiber laser.XRD,Raman,and XPS spectra confirm the successful preparation of the layered ReS2.SEM images show that the obtained ReS2 sheets have lateral size below 200 nm.The thickness of the ReS2 nanosheets is smaller than 5 nm according to the AFM results.ReS2/PVA film is applied as a saturable absorber in an Er-doped Q-switched fiber laser,and a minimum pulse duration of 2.4μs and an output power of 1.25 mW are obtained,indicating the potential application to Q-switched lasers. | Junshan HE Guohua ZENG Shaoxian LIU Haiming LU Ruixian XIE Jingjing QI Lili TAO Bo ZHOU | 2021 | Frontiers of Information Technology & Electronic Engineering2021，22，3： | 0 |
| 14 | Zebrafish facilitates drug screening: potential of 3-deoxy-andrographoside from Chuanxinlian(Herba Andrographitis Paniculatae) as an anti-inflammatory agent显示文摘OBJECTIVE: To systematically evaluate the in vivo antiinflammatory potential of diterpene lactones from Chuanxinlian(Herba Andrographitis Paniculatae)(AP). METHODS: We firstly adopted zebrafish, a novel and ideal animal model for high-throughput drug screening, to investigate the in vivo anti-inflammatory activities of 17 diterpene lactones isolated from AP.RESULTS: The results showed that most of diterpene lactones displayed significant anti-inflammatory effects in lipopolysaccharide microinjection-, copper sulfate exposure-or tail transection-induced zebrafish inflammation models. Moreover, diterpene lactone 3-deoxy-andrographoside(AP-5) was firstly found to attenuate inflammatory responses, which was closely associated with the myeloid differentiation primary response 88/nuclear factor-kappa B and signal transducer and activator of transcription 3 pathways. CONCLUSION: Our research sheds light on the inestimable roles of zebrafish in high-throughput drug screening, elucidates the potent inhibitory effects of diterpene lactones against inflammation and indicates that AP-5 may serve as a potential alternative agent for the treatment of inflammatory diseases. | HE Xuemei XIAO Junjie FAN Chunlin LU Zibin CAO Huihui YU Linzhong ZHENG Yuanru LIU Junshan | 2022 | Journal of Traditional Chinese Medicine2022，42，5： | 0 |
| 15 | Unraveling the role of iron on Ni-Fe alloy nanoparticles during the electrocatalytic ethanol-to-acetate process显示文摘The anodic electrooxidation of ethanol to value-added acetate is an excellent example of replacing the oxygen evolution reaction to promote the cathodic hydrogen evolution reaction and save energy.Herein,we present a colloidal strategy to produce Ni-Fe bimetallic alloy nanoparticles(NPs)as efficient electrocatalysts for the electrooxidation of ethanol in alkaline media.Ni-Fe alloy NPs deliver a current density of 100 mA·cm^(-2) in a 1.0 M KOH solution containing 1.0 M ethanol merely at 1.5 V vs.reversible hydrogen electrode(RHE),well above the performance of other electrocatalysts in a similar system.Within continuous 10 h testing at this external potential,this electrode is able to produce an average of 0.49 mmol·cm^(-2)·h^(-1) of acetate with an ethanol-to-acetate Faradaic efficiency of 80%.A series of spectroscopy techniques are used to probe the electrocatalytic process and analyze the electrolyte.Additionally,density functional theory(DFT)calculations demonstrate that the iron in the alloy NPs significantly enhances the electroconductivity and electron transfer,shifts the rate-limiting step,and lowers the energy barrier during the ethanol-to-acetate reaction pathway. | Junshan Li Luming Li Xinyu Ma Jun Wang Jun Zhao Yu Zhang Ren He Yaoyue Yang Andreu Cabot Yongfa Zhu | 2024 | Nano Research2024，17，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员