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| 1 | Pluripotent stem cells induced from mouse neural stem cells and small intestinal epithelial cells by small molecule compounds显示文摘最近,我们报导了一条化学途径从老鼠成纤维细胞产生 pluripotent 干细胞。然而,是否化学上导致了 pluripotent 干细胞(CiPSCs ) ,能从要示威的另外的房间类型遗体被导出。用系跟踪,这里,我们首先从成纤维细胞验证 CiPSCs 的产生。下次,我们证明从外胚层的神经干细胞(NSC ) 和从内胚叶的小肠的上皮的房间(IEC ) 能是化学上 reprogrammed 进 pluripotent 干细胞。CiPSCs 源于 NSC 和 IEC 类似于老鼠处于增长率,全球基因表示侧面, epigenetic 地位,自强和区别能力的胚胎的干细胞,和 germline 传播才能。有趣地, pluripotency 基因 Sall4 从不同房间类型,和一样的核心在化学 reprogramming 过程在起始的阶段被表示小分子为 reprogramming 被要求,在从这些多样的房间类型位于化学 reprogramming 下面的分子的机制建议保存。我们的分析也证明这些小分子的使用应该被调整从不同房间类型满足 reprogramming 的要求。一起,这些调查结果证明那条完整的化学 reprogramming 途径能在不同织物起源的房间被使用并且建议化学 reprogramming 是有要延长到更起始的类型的潜力的有希望的策略。 | Junqing Ye Jian Ge Xu Zhang Lin Cheng Zhengyuan Zhang Shan He Yuping Wang Hua Lin Weifeng Yang Junfang Liu Yang Zhao Hongkui Deng | 2016 | Cell Research2016,26,1: | 19 |
| 2 | Tribological Behavior of Nano-ZrO2 Reinforced PTFE-PPS Composites显示文摘Polytetrafluoroethylene (PTFE) is a commonly used seal material for oil-free engine that is well known for its excellent tribological properties. In this work, the nano-ZrO2 particles were used as the friction modifiers to improve the friction and wear performance of PTFE-PPS composites. The friction and wear characteristics of PTFE/PPS-nano-ZrO2 composites were investigated by a block-on-ring tester under dry friction sliding condition. The worn surfaces, counterpart transfer films and wear debris were studied by scanning electron microscopy and X-ray photoelectron spectroscopy. It was found that the increase of nano- ZrO2 content could effectively reduce the coefficient of friction and enhance the anti-wear ability of PTFEPPS composites. Especially, the best tribological properties of the composites were obtained when the particle content of nano-ZrO2 was 10 vol%, the anti-wear performance of composite is 195 times better than that of the unfilled PTFE-PPS composite. Under different conditions, the coefficient of friction of PTFE/PPS-nano-ZrO2 composites was more affected by the applied load while the wear rate was more affected by the sliding velocity. | 曹文翰 龚俊 QI Yuan YANG Dongya GAO Gui 王宏刚 REN Junfang CHEN Shengsheng | 2019 | Journal of Wuhan University of Technology(Materials Science)2019,34,3: | 5 |
| 3 | Synthesis and facet-dependent photocatalytic activity of strontium titanate polyhedron nanocrystals显示文摘Cubic-perovskite (SrTiO 3) 有一个大潜力在大量应用被利用。然而,当前,很,很少在他们的物理化学的性质上对形状和 SrTiO 3 的方面效果被知道。这大部分由于在在合成期间控制方面的形态学的困难。此处,我们为 singlecrystalline SrTiO 3 的控制方面、控制尺寸的制造描述一条灵巧的线路三角形的棱柱与高度暴露了 { 101 } 方面脸并且 { 111 } 结束脸。他们的 photocatalytic 表演的理论、试验性的研究证明了三角形的棱柱比 nanocubes 展出优异 photocatalytic 活动与暴露( 001 )为器官的沾染物的降级面对,它可以首先被归因于高得多的表面精力{ 101 }方面( 2.97 J/m 2)并且{ 111 }方面( 2.80 J/m 2)比的{ 001 }方面( 0.98 J/m 2)。 | Junfang Li Hua Bai Wencai Yi Jingyao Liu Yahui Li Qing Zhang Haifeng Yang Guangcheng Xi | 2016 | Nano Research2016,9,5: | 4 |
| 4 | Cyclopalladated ferrocenylimines as efficient catalysts for homogeneous catalysis:A brief introduction to our preliminary achievements显示文摘Cyclopalladated ferrocenylimines as a novel kind of highly efficient palladium catalyst precursors, which are air-stable and easy to handle, have been successfully applied in a wide variety of catalytic reactions ranging from classical reactions, such as Heck, Suzuki, Sonogashira and Buchwald-Hartwig couplings, to cyanation, addition reactions of arylboronic acids, and coupling reactions involving terminal alkynes. The preliminary achievements regarding their applications to homogeneous catalysis are concisely described herein. | WU YangJie YANG Fan ZHANG JinLi CUI XiuLing GONG JunFang SONG MaoPing LI TieSheng | 2010 | Chinese Science Bulletin2010,55,25: | 2 |
| 5 | Wire-in-Wire TiO_(2)/C Nanofibers Free-Standing Anodes for Li-Ion and K-Ion Batteries with Long Cycling Stability and High Capacity显示文摘Wearable and portable mobile phones play a critical role in the market, and one of the key technologies is the flexible electrode with high specific capacity and excellent mechanical flexibility. Herein, a wire-in-wire TiO_(2)/C nanofibers (TiO_(2) ww/CN) film is synthesized via electrospinning with selenium as a structural inducer. The interconnected carbon network and unique wire- in-wire nanostructure cannot only improve electronic conductivity and induce effective charge transports, but also bring a superior mechanic flexibility. Ulti-mately, TiO_(2) ww/CN film shows outstanding electrochemical performance as free-standing electrodes in Li/K ion batteries. It shows a discharge capacity as high as 303 mAh g^(−1) at 5 A g^(−1) after 6000 cycles in Li half-cells, and the unique structure is well-reserved after long-term cycling. Moreover, even TiO_(2) has a large diffusion barrier of K^(+), TiO_(2) ww/CN film demonstrates excellent perfor-mance (259 mAh g^(−1) at 0.05 A g^(−1) after 1000 cycles) in K half-cells owing to extraordinary pseudocapacitive contribution. The Li/K full cells consisted of TiO_(2) ww/CN film anode and LiFePO_(4)/Perylene-3,4,9,10-tetracarboxylic dianhydride cathode possess outstanding cycling stability and demonstrate practical application from lighting at least 19 LEDs. It is, therefore, expected that this material will find broad applications in portable and wearable Li/K-ion batteries. | Die Su Yi Pei Li Liu Zhixiao Liu Junfang Liu Min Yang Jiaxing Wen Jing Dai Huiqiu Deng Guozhong Cao | 2021 | Nano-Micro Letters2021,13,7: | 2 |
| 6 | A New Growth Model of Fault Attributes in a Strike-Slip Fault System in the Tarim Basin显示文摘Fault attributes generally display a consistent power–law-scaling relationship.Based on new 3 D seismic data,however,we found some exceptional fault attribute relationships of lengths(L)–throw(T)(vertical component of displacement),overlap zone length(Lo)–width(Wo)from a strike-slip fault system of the Ordovician carbonates in the Tarim Basin.The L–T relationship shows two linear segments with breakup at^40 km in fault length.This presents an exceptional throw increase in the second stage,which is attributed to a localization of vertical displacement and deformation in overlapping zones other than the different fault scales in a mature fault zone.The Lo–Wo relationship in the overlapping zones shows multiply stepped-shape patterns,suggesting multiple fault differential growth and periodic increase in fault size.Therefore,we propose a new alternative growth model of fault attributes in strike-slip fault zones,in which the overlapping zones accumulated localized displacement and deformation in the intracratonic strike-slip fault zone. | ZHANG Yintao WU Guanghui WANG Junfang LI Guohui WAN Xiaoguo YANG Tianyi | 2020 | Acta Geologica Sinica(English Edition)2020,94,5: | 1 |
| 7 | Application Status and Prospects of Biogas Fertilizer in Modern Agricultural Production显示文摘On the basis of introducing the nutrient composition and biogas fertilizer,the effects of biogas fertilizer on soil,crops and environment are summarized. Biogas fertilizer can improve soil structure,increase soil organic matter,available nutrient contents and enzyme activity,increase crop yield,quality and resistance,and relieve the non-point source pollution effectively. The harmlessness,application technology and risk are analyzed. Some suggestions are put forward to control the source pollution,strengthen the research of fermentation technology,define the standard of biogas fertilizer,and carry out large and medium-sized biogas engineering. | Jianshuo SHI Junfang YANG Liying WANG Li GUO Yanli REN Ruonan LI Fengzhi ZHAI Xuan SUN | 2018 | Asian Agricultural Research2018,10,7: | 1 |
| 8 | Synthesis and luminescence properties of CdSe:Eu NPs and their surface polymerization of poly(MMA-co-MQ)显示文摘CdSe:Eu nanoparticles(NPs) were synthesized using an oil phase method and the substitution of Cd^(2+)with Eu3+ was confirmed by XRD,TEM,UV-Vis absorption and fluorescence emission analyses.The CdSe:Eu NPs are monodispersed and uniform spherical particles with a diameter of 3.2 nm,bigger than the pure CdSe NPs(2.3 nm),but with a similar cubic structure as CdSe NPs.Compared with those of pure CdSe NPs,both emission spectrum and absorption spectrum of CdSe:Eu NPs are red-shifted.The CdSe:Eu NPs are incorporated into poly(MMA-co-MQ) to afford poly(MMA-co-MQ)-CdSe:Eu NPs with the cubic structure and particle size(~3-4 nm) similar to those of CdSe:Eu NPs.The TEM imaging suggests that the CdSe:Eu NPs are uniformly dispersed in poly(MMA-co-MQ,) without any obvious aggregation.The fluorescent emission peak and absorption peak of poly(MMA-co-MQ)-CdSe:Eu NPs are between those of CdSe:Eu NPs and poly(MMA-co-MQ),possibly due to the energy transfer caused by the interactions of Cd or Eu atoms on the surfaces of CdSe:Eu NPs with the N and O atoms of poly(MMA-co-MQ).These CdSe:Eu and poly(MMA-co-MQ)-CdSe:Eu NPs with tunable photoluminescence properties can be potentially used for the fabrication of optical and optoelectronic devices. | Junfang Gao Junhong Yang Shengli Yong Lijing Liu Xingwang Liu | 2018 | Journal of Rare Earths2018,36,9: | 1 |
| 9 | Molecular dynamics study of methane hydrate formation at a water/methane interface显示文摘 | Zhang Junfang Hawtin R W Yang Ye | 2008 | American Chemical Society2008,112,10: | 1 |
| 10 | A Noncovalently Fused-Ring Asymmetric Electron Acceptor Enables Efficient Organic Solar Cells显示文摘Main observation and conclusion Recently,the asymmetric nonfullerene acceptors(NFAs)with acceptor-donor-acceptor(A-D-A)structure have been developed rapidly,especially for the modification of asymmetric core,asymmetric side chains and asymmetric end groups.In this work,a novel asymmetric A-D-π-A type NFA with a noncovalently fused-ring core named PIST-4F is synthesized,containing an indacenodithieno[3,2-b]dithiophene(IDT),two strong electron-withdrawing end groups and an alkylthio-substituted thiopheneπ-bridge.Benefiting from the S···S noncovalent interaction between the sulfur atom onπ-bridge and the adjacent thiophene in IDT,the PIST-4F presents nearly planar geometry and extended conjugated area,resulting in the optimized electronic properties,charge transport,and film morphology compared to the symmetric NFA PI-4F.As a result,PM6:PIST-4F-based devices achieve a higher power conversion efficiency(PCE)of 13.8%,while the PM6:PI-4F-based devices only show a PCE of 7.1%.Notably,the PM6:PIST-4F-based devices processed with nonhalogen solvent toluene exhibit an excellent PCE as high as 13.1%.These results indicate that PIST-4F is an effective acceptor for high-efficiency organic solar cells. | Ji Lin Qing Guo Qi Liu Junfang Lv Haiyan Liang Yang Wang Lei Zhu Feng Liu Xia Guo Maojie Zhang | 2021 | Chinese Journal of Chemistry2021,39,10: | 1 |
| 11 | Design and experiment of visual navigated UGV for orchard based on Hough matrix and RANSAC显示文摘The objective of this study was to develop a visual navigation system capable of navigating an unmanned ground vehicle(UGV)travelling between tree rows in the outdoor orchard.Thus far,while most research has developed algorithms that deal with ground structures in the orchard,this study focused on the background of canopy plus sky to eliminate the interference factors such as inconsistent lighting,shadows,and color similarities in features.Aiming at the problem that the traditional Hough transform and the least square method are difficult to be applied under outdoor conditions,an algorithm combining Hough matrix and random sample consensus(RANSAC)was proposed to extract the navigation path.In the image segmentation stage,this study used an H-component that was adopted to extract the target path of the canopy plus sky.Then,after denoising and smoothing the image by morphological operation,line scanning was used to determine the midpoint of the target path.For navigation path extraction,this study extracted the feature points through Hough matrix to eliminate the redundant points,and RANSAC was used to reduce the impact of the noise points caused by different canopy shapes and fit the navigation path.The path acquisition experiment proved that the accuracy of Hough matrix and RANSAC method was 90.36%-96.81%and the time consumption of the program was within 0.55 s under different sunlight intensities.This method was superior to the traditional Hough transform in real-time and accuracy,and had higher accuracy,slightly worse real-time compared with the least square method.Furthermore,the OPENMV was used to capture the ground information of the orchard.The experiment proved that the recognition rate of OPENMV for identifying turning information was 100%,and the program running time was 0.17-0.19 s.Field experiments showed that the UGV could autonomously navigate the rows with a maximum lateral error of 0.118 m and realize the automatic turning of the UGV.The algorithm satisfied the practical operation requirements of autonomous vehicles in the orchard.So the UGV has the potential to guide multipurpose agricultural vehicles in outdoor orchards in the future. | Mingkuan Zhou Junfang Xia Fang Yang Kan Zheng Mengjie Hu Dong Li Shuai Zhang | 2021 | International Journal of Agricultural and Biological Engineering2021,14,6: | 1 |
| 12 | Study on the adsorption of Neutral Red from aqueous solution onto halloysite nanotubes显示文摘 | Peng Luo Yafei Zhao Bing Zhang Jindun Liu Yong Yang Junfang Liu | 2009 | Water Research2009,,: | 1 |
| 13 | Information Retrieving Based on Conceptual Network, 显示文摘 | Junfang Zeng Yiping Yang | 2003 | International Conference on Natural Language Processing and Knowledge Engineering Proceedings:2003,,: | 1 |
| 14 | Reinforcement of natural rubber with quartz/sericite/wollastonite显示文摘 | Guan Junfang Yang Huiqun | 2011 | Advanced Materials Research2011,,: | 1 |
| 15 | Performance of aerobic rice varieties under irrigated conditions in North China显示文摘 | B.A.M. Bouman Xiaoguang Yang Huaqi Wang Zhimin Wang Junfang Zhao Bin Chen | 2005 | Field Crops Research2005,,1: | 1 |
| 16 | Alternative splicing of the cell fate determinant Numb in hepatocellular carcinoma显示文摘 | Yinying Lu Wanping Xu Junfang Ji Dechun Feng Carole Sourbier Youfeng Yang Jianhui Qu Zhen Zeng Chunping Wang Xiujuan Chang Yan Chen Alok Mishra Max Xu Min‐Jung Lee Sunmin Lee Jane Trepel W. Marston Linehan Xinwei Wang Yongping Yang Len Neckers | 2015 | Hepatology2015,,: | 1 |
| 17 | Ultralong organic room-temperature phosphorescence of electrondonating and commercially available host and guest molecules through efficient Förster resonance energy transfer显示文摘Ultralong organic room-temperature phosphorescence(RTP)materials have attracted tremendous attention recently due to their diverse applications.Several ultralong organic RTP materials mimicking the host-guest architecture of inorganic systems have been exploited successfully.However,complicated synthesis and high expenditure are still inevitable in these studies.Herein,we develop a series of novel host-guest organic phosphorescence systems,in which all luminophores are electron-rich,commercially available and halogen-atom-free.The maximum phosphorescence efficiency and the longest lifetime could reach 23.6%and 362 ms,respectively.Experimental results and theoretical calculation indicate that the host molecules not only play a vital role in providing a rigid environment to suppress non-radiative decay of the guest,but also show a synergistic effect to the guest through Förster resonance energy transfer(FRET).The commercial availability,facile preparation and unique properties also make these new host-guest materials an excellent candidate for the anti-counterfeiting application.This work will inspire researchers to develop new RTP systems with different wavelengths from commercially available luminophores. | Yeling Ning Junfang Yang Han Si Haozhong Wu Xiaoyan Zheng Anjun Qin Ben Zhong Tang | 2021 | Science China Chemistry2021,64,5: | 1 |
| 18 | Simultaneously measured current, luminosity, and electric field pulses in a rocket-triggered lightning flash显示文摘 | Qie Xiushu Jiang Rubin Wang Caixia Yang Jing Wang Junfang Liu Dongxia | 2011 | Journal of Geophysical Research Atmospheres2011,,1: | 1 |
| 19 | Molecular dynamics study of methane hydrate formation at a water/methane interface显示文摘 | Zhang Junfang Hawtin R W Yang Ye | 2008 | American Chemical Society2008,112,10: | 1 |
| 20 | Hyperspectral remote sensing identification of marine oil emulsions based on the fusion of spatial and spectral features显示文摘Marine oil spill emulsions are difficult to recover,and the damage to the environment is not easy to eliminate.The use of remote sensing to accurately identify oil spill emulsions is highly important for the protection of marine environments.However,the spectrum of oil emulsions changes due to different water content.Hyperspectral remote sensing and deep learning can use spectral and spatial information to identify different types of oil emulsions.Nonetheless,hyperspectral data can also cause information redundancy,reducing classification accuracy and efficiency,and even overfitting in machine learning models.To address these problems,an oil emulsion deep-learning identification model with spatial-spectral feature fusion is established,and feature bands that can distinguish between crude oil,seawater,water-in-oil emulsion(WO),and oil-in-water emulsion(OW)are filtered based on a standard deviation threshold–mutual information method.Using oil spill airborne hyperspectral data,we conducted identification experiments on oil emulsions in different background waters and under different spatial and temporal conditions,analyzed the transferability of the model,and explored the effects of feature band selection and spectral resolution on the identification of oil emulsions.The results show the following.(1)The standard deviation–mutual information feature selection method is able to effectively extract feature bands that can distinguish between WO,OW,oil slick,and seawater.The number of bands was reduced from 224 to 134 after feature selection on the Airborne Visible Infrared Imaging Spectrometer(AVIRIS)data and from 126 to 100 on the S185 data.(2)With feature selection,the overall accuracy and Kappa of the identification results for the training area are 91.80%and 0.86,respectively,improved by 2.62%and 0.04,and the overall accuracy and Kappa of the identification results for the migration area are 86.53%and 0.80,respectively,improved by 3.45%and 0.05.(3)The oil emulsion identification model has a certain degree of transferability and can effectively identify oil spill emulsions for AVIRIS data at different times and locations,with an overall accuracy of more than 80%,Kappa coefficient of more than 0.7,and F1 score of 0.75 or more for each category.(4)As the spectral resolution decreasing,the model yields different degrees of misclassification for areas with a mixed distribution of oil slick and seawater or mixed distribution of WO and OW.Based on the above experimental results,we demonstrate that the oil emulsion identification model with spatial–spectral feature fusion achieves a high accuracy rate in identifying oil emulsion using airborne hyperspectral data,and can be applied to images under different spatial and temporal conditions.Furthermore,we also elucidate the impact of factors such as spectral resolution and background water bodies on the identification process.These findings provide new reference for future endeavors in automated marine oil spill detection. | Xinyue Huang Yi Ma Zongchen Jiang Junfang Yang | 2024 | Acta Oceanologica Sinica2024,43,3: | 0 |