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| 1 | Forecast of Flood in Chaohu Lake Basin of China Based on Grey-Markov Theory显示文摘Flood is one kind of unexpected and the most common natural disasters, which is affected by many factors and has complex mechanism. At home and abroad, there is still no mature theory and method used for the long-term forecast of natural precipitation at present. In the present paper the disadvantages of grey GM (1, 1) and Markov chain are ana- lyzed, and Grey-Markov forecast theory about flood is put forward and then the modifying model is developed by making prediction of Chaohu Lake basin. Hydrological law was conducted based on the theoretical forecasts by grey system GM (1, 1) forecast model with improved Markov chain. The above method contained Stat-analysis, embodying scientific approach, precise forecast and its reliable results. | LI Xiang WANG Xinyuan SHAO Wei XIA Linyi ZHANG Guangsheng TIAN Bing LI Wenda PENG Peng | 2007 | Chinese Geographical Science2007,17,1: | 10 |
| 2 | Effects of cerium substitution on phase components, microstructures and magnetic properties of Nd-Fe-Ti-B alloy显示文摘(Nd(1-x)Cex)(12)Fe(77)Ti5B6(x=0,0.2,0.3,0.4,0.6,0.8)alloys were prepared by melt-spinning and annealing techniques.The phase constitutions,microstructures and magnetic properties were investigated by powder X-ray diffraction(XRD),a differential scanning calorimeter(DSC),a vibrating sample magnetometer(VSM)and a transmission electron microscope(TEM).It is found that with the increase of Ce content,the coercivity of the(Nd(1-x)Cex)(12)Fe(77)Ti5B6 alloys reaches maximum first and then decreases.The maximum coercivity reaches 18.5 kOe obtained in the sample of 20%Ce substituted which is 34%higher than the Ce-free sample.TEM results reveal that the micro structure refinement effect is responsible for the coercivity improvement.This phenomenon implies that in some cases,Ce and Ti co-doping is more beneficial to improving of the coercivity than Ti single doping in Nd-Fe-B alloys.With further Ce addition,magnetic properties deteriorate due to the formation of CeFe2 and TbCu7-type phases. | Haijun Peng Yang Luo Yakun Dou Xinyuan Bai Wenlong Yan Dunbo Yu Yuanfei Yang Shulin Diao | 2019 | Journal of Rare Earths2019,37,8: | 4 |
| 3 | Magnetic properties and microstructures of terbium coated and grain boundary diffusion treated sintered Nd-Fe-B magnets by magnetron sputtering显示文摘Tb coating on the surface of commercial sintered Nd-Fe-B magnet was prepared by DC magnetron sputtering.The secondary heat treatment was used to regulate the microstructure for the enhancement of coercivity,namely diffusion treatment and annealing treatment.The coercivity increases significantly from 18.3 to 28.0 kOe,the remanence decreases slightly from 14.1 to 14.0 kGs,and the comprehensive magnetic properties are higher than 75(Hcj+(BH)_(max)=76.7).SEM results indicate that,on the one hand,950℃is the optimal diffusion temperature.Lower diffusion temperature results in insufficient diffusion of Tb element.Higher diffusion temperature can lead to the main phase grain growth,the decrease of Nd-rich phase,and forming holes in the magnet.On the other hand,500℃is the optimal annealing temperature.Lower annealing temperature can result in the reduction of Nd-rich phase.Higher annealing temperature can generate the non-defined Nd-rich thin layer between grains. | Wei Zhu Yang Luo Zilong Wang Xinyuan Bai Haijun Peng Dunbo Yu | 2021 | Journal of Rare Earths2021,39,2: | 2 |
| 4 | Bioorthogonal chemistry in living animals显示文摘Bioorthogonal chemistry refers to those chemical reactions that can be performed in living systems without interfering with native biological processes.Since its first introduction by Bertozzi et al.in | Xinyuan Fan Jie Li Peng R.Chen | 2017 | National Science Review2017,4,3: | 2 |
| 5 | Downregulation of Annexin A1 by short hairpin RNA inhibits the osteogenicdifferentiation of rat bone marrow-derived mesenchymal stem cells显示文摘 | Xinyuan Pan Liu Peng Guoqian Yin | 2015 | International Journal of Molecular Medicine2015,,2: | 1 |
| 6 | Effects of grain boundary diffusion of PrCu alloy on microstructure and coercivity of hot deformed(Nd,Ce)-Fe-B magnets显示文摘The technology of using high abundance rare earth element Ce in permanent magnets has attracted many concerns.In this work,the magnetic properties and microstructures of hot deformed(Nd_(1-x)Ce_(x))_(13.8)Fe_(76.1)Co_(4)Ga_(0.5)B_(5.6) magnets and a selective magnet treated with PrCu grain boundary diffusion process(GBDP) were investigated systematically.It is found that Ce is beneficial to improving the plastic deformation ability of NdFeB magnets.The strongest c-axis orientation is achieved in the HD magnets with Ce concentration of x=0.3,resulting in good comprehensive magnetic properties of B_(r)=13.00 kGs,H_(cj)=10.12 kOe,(BH)_(max)=38.42 MGOe.Based on that,the GBDP was implemented on the magnets with the best orientation using Pr_(68)Cu_(32) ribbons and the magnetic properties of B_(r)=12.87 kGs,H_(cj)=15.65 kOe,(BH)_(max)=37.48 MGOe were obtained.The results of composition distribution and Curie temperature test of the GBDPed magnets illustrate that Pr diffuses into the(Nd,Ce)_(2)(Fe,Co)_(14)B grains to substitute Ce,which not only improves the Curie temperature of the grains,but also enhances the magnetic performance of the magnets.Through GBDP,the thermal stability of magnets has also been improved. | Haijun Peng Dunbo Yu Xinyuan Bai Xiao Lin Yongjun Mao Zilong Wang Yang Luo | 2021 | Journal of Rare Earths2021,39,8: | 1 |
| 7 | thermal degradation of syndiotactic polypropylene and the influence of stereoregularity on the thermal degradation hehaviour by in situ FTIR spectroscopy 显示文摘 | Peng He Yan Xiao Puming Zhang Chunhua Xing Na Zhu Xinyuan Zhu Deyue Yan | 2005 | Polymer Degradation and Stability2005,,88: | 1 |
| 8 | Synergistic effect of various elements in Fe_(41)Co_(7)Cr_(15)Mo_(14)C_(15)B_(6)Y_(2) amorphous alloy hollow ball on catalytic degradation of methylene blue显示文摘Metallic glasses have recently attracted great attention in terms of degrading dyes and other organic pollutants as an environmentally friendly material for wastewater remediation.Herein,we report a new type of amorphous catalyst Fe_(41)Co_(7)Cr_(15)Mo_(14)C_(15)B_(6)Y_(2) hollow balls.Results demonstrate that the catalyst can still completely decolorize the 20 mg/L methylene blue(MB)solution after reused for 50 times under conditions of pH=5,catalyst content 0.5 g/L,and temperature 80°C.The catalyst is easily broken during degradation,so the inner surface also provides additional active sites.The Fe_(41)Co_(7)Cr_(15)Mo_(14)C_(15)B_(6)Y_(2) amorphous alloy hollow balls were characterized by energy dispersive X-ray specroscopy(EDS),scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS),respectively.The elements in the catalytic system have a synergistic catalytic effect.Redox cycle Fe^(2+)/Fe^(3+),Co^(2+)/Co^(3+)and Mo^(4+)/Mo^(6+) promote mutual conversion and accelerate the catalytic process of their reaction with H_(2)O_(2),forming a self-stable redox cycle process.Among them,Fe^(2+)promotes the conversion of Co^(3+)to Co^(2+),and Mo^(4+) promotes the conversion of Fe^(3+)to Fe^(2+),mainly Fe^(2+)and Co^(2+)react with H_(2)O_(2) to generate•OH.Mo and Cr elements form MoO_(2) and Cr_(2)O_(3) plasma compounds on the surface,which act as a protective film to make the catalyst more stable and be repeated used more frequently. | Wenhu Luo Qingjun Chen Li Ji Xinyuan Peng Guosheng Huang | 2022 | Journal of Rare Earths2022,40,4: | 1 |
| 9 | Deciphering life sciences with“live”chemistry——The 2022 Nobel Prize in Chemistry显示文摘The 2022 Nobel Prize in Chemistry was awarded to Carolyn R.Bertozzi,Morten Meldal andK.Barry Sharpless for their development of click reaction and bioorthogonal chemistry.Our understanding of life sciences has been fundamentally accelerated by such novel chemistries,and to some extent,revolutionized by the emergence of new chemical tools benefited from these cutting-edge interdisciplinary explorations.In turn,the high demands of more powerful chemical tools for the sophisticated living systems have further promoted the development of new chemistry with newfunctionalities and applications. | Xinyuan Fan Peng R.Chen | 2023 | Science China Chemistry2023,66,1: | 1 |
| 10 | Identification of TAZ as the essential molecular switch in orchestrating SCLC phenotypic transition and metastasis显示文摘Small-cell lung cancer(SCLC)is a recalcitrant cancer characterized by high metastasis.However,the exact cell type contributing to metastasis remains elusive.Using a Rb1^(L/L)/Trp53^(L/L) mouse model,we identify the NCAM^(hi)CD44^(lo/–) subpopulation as the SCLC metastasizing cell(SMC),which is progressively transitioned from the non-metastasizing NCAM^(lo)CD44^(hi) cell(non-SMC).Integrative chromatin accessibility and gene expression profiling studies reveal the important role of the SWI/SNF complex,and knockout of its central component,Brg1,significantly inhibits such phenotypic transition and metastasis.Mechanistically,TAZ is silenced by the SWI/SNF complex during SCLC malignant progression,and its knockdown promotes SMC transition and metastasis.Importantly,ectopic TAZ expression reversely drives SMC-to-non-SMC transition and alleviates metastasis.Single-cell RNA-sequencing analyses identify SMC as the dominant subpopulation in human SCLC metastasis,and immunostaining data show a positive correlation between TAZ and patient prognosis.These data uncover high SCLC plasticity and identify TAZ as the key molecular switch in orchestrating SCLC phenotypic transition and metastasis. | Yujuan Jin Qiqi Zhao Weikang Zhu Yan Feng Tian Xiao Peng Zhang Liyan Jiang Yingyong Hou Chenchen Guo Hsinyi Huang Yabin Chen Xinyuan Tong Jiayu Cao Fei Li Xueliang Zhu Jun Qin Dong Gao Xin-Yuan Liu Hua Zhang Luonan Chen Roman KThomas Kwok-Kin Wong Lei Zhang Yong Wang Liang Hu Hongbin Ji | 2022 | National Science Review2022,9,7: | 0 |
| 11 | Correction to:Identification of TAZ as the essential molecular switch in orchestrating SCLC phenotypic transition and metastasis显示文摘This is a correction to:Yujuan Jin,Qiqi Zhao,Weikang Zhu,Yan Feng,Tian Xiao,Peng Zhang,Liyan Jiang,Yingyong Hou,Chenchen Guo,Hsinyi Huang,Yabin Chen,Xinyuan Tong,Jiayu Cao,Fei Li,Xueliang Zhu,Jun Qin,Dong Gao,Xin-Yuan Liu,Hua Zhang,Luonan Chen,Roman K Thomas,Kwok-Kin Wong,Lei Zhang,Yong Wang,Liang Hu,Hongbin Ji,Identification of TAZ as the essential molecular switch in orchestrating SCLC phenotypic transition and metastasis,National Science Review,Volume 9,Issue 7,July 2022,nwab232,http://gffzzd3cc09b8251d45dfsxqcpcwwcnup965kb.ffgz.tsg.suse.edu.cn/10.1093/nsr/nwab232. | Yujuan Jin Qiqi Zhao Weikang Zhu Yan Feng Tian Xiao Peng Zhang Liyan Jiang Yingyong Hou Chenchen Guo Hsinyi Huang Yabin Chen Xinyuan Tong Jiayu Cao Fei Li Xueliang Zhu Jun Qin Dong Gao Xin-Yuan Liu Hua Zhang Luonan Chen Roman KThomas Kwok-Kin Wong Lei Zhang Yong Wang Liang Hu Hongbin Ji | 2023 | National Science Review2023,10,12: | 0 |
| 12 | Multi-dimensional multiplexing optical secret sharing framework with cascaded liquid crystal holograms显示文摘Secret sharing is a promising technology for information encryption by splitting the secret information into different shares.However,the traditional scheme suffers from information leakage in decryption process since the amount of available information channels is limited.Herein,we propose and demonstrate an optical secret sharing framework based on the multi-dimensional multiplexing liquid crystal(LC)holograms.The LC holograms are used as spatially separated shares to carry secret images.The polarization of the incident light and the distance between different shares are served as secret keys,which can significantly improve the information security and capacity.Besides,the decryption condition is also restricted by the applied external voltage due to the variant diffraction efficiency,which further increases the information security.In implementation,an artificial neural network(ANN)model is developed to carefully design the phase distribution of each LC hologram.With the advantage of high security,high capacity and simple configuration,our optical secret sharing framework has great potentials in optical encryption and dynamic holographic display. | Keyao Li Yiming Wang Dapu Pi Baoli Li Haitao Luan Xinyuan Fang Peng Chen Yanqing Lu Min Gu | 2024 | Opto-Electronic Advances2024,7,1: | 0 |
| 13 | Increased Oxygen Evolution Activity in pH-Universal Electrocatalyst: Urea-Modified NiFeCoCN Medium-Entropy Alloy显示文摘The kinetic process of a slow oxygen evolution reaction (OER) always constrains the efficiency of overall water electrolysis for H2 production.In particular,nonprecious metal electrodes for the OER have difficulty in possessing excellent electrocatalytic activity and stability in pH-universal media simultaneously.In this work,urea is first used as a pore-forming agent and active C/N source to fabricate a nanoporous NiFeCoCN medium-entropy alloy (MEA) by high-temperature sintering based on the nanoscale Kirkendall effect.The NiFeCoCN MEA achieves an overpotential of 432 mV at a current density of 10 mA·cm^(-2) and a lower Tafel slope of 52.4 mV·dec^(-1) compared to the IrO_(2)/Ti electrode (58.6 mV·dec^(-1)) in a 0.5 mol/L H_(2)SO_(4) solution.In a 1 mol/L KOH solution,the NiFeCoCN MEA obtains an overpotential of 175 mV for 10 mA·cm^(-2) and a Tafel slope of 40.8 mV·dec^(-1),which is better than IrO_(2)/Ni foam.This work proves a novel strategy to design and prepare nanoporous MEA materials with desirable C/N species,which provides promising prospects for the industrial production of H2 energy. | Hongwei Lv Zhiguo Ye Feng Pei Xinyuan Peng Juntong Huang Duosheng Li Zhong Jin | 2023 | Chinese Journal of Chemistry2023,41,23: | 0 |
| 14 | Rational design of high-quality 2D/3D perovskite heterostructure crystals for record-performance polarization-sensitive photodetection显示文摘Polarization-sensitive photodetection is central to optics applications and has been successfully demonstrated in photodetectors of two-dimensional(2D)materials,such as layered hybrid perovskites;however,achieving high polarization sensitivity in such a photodetector remains extremely challenging.Here,for the first time,we demonstrate a high-performance polarization-sensitive photodetector using single-crystalline 2D/3D perovskite heterostructure,namely,(4-AMP)(MA)_(2)Pb_(3)Br_(10)/MAPbBr_(3)(MA=methylammonium;4-AMP=4-(aminomethyl)piperidinium),which exhibits ultrahigh polarization sensitivity up to 17.6 under self-driven mode.To our knowledge,such a high polarization selectivity has surpassed all of the reported perovskite-based devices,and is comparable to,or even better than,the traditional inorganic heterostructure-based photodetectors.Further studies reveal that the built-in electric field formed at the junction can spatially separate the photogenerated electrons and holes,reducing their recombination rate and thus enhancing the performance for polarization-sensitive photodetection.This work provides a new source of polarization-sensitive materials and insights into designing novel optoelectronic devices. | Xinyuan Zhang Lina Li Chengmin Ji Xitao Liu Qing Li Kun Zhang Yu Peng Maochun Hong Junhua Luo | 2021 | National Science Review2021,8,10: | 0 |
| 15 | On-site conversion reaction enables ion-conducting surface on red phosphorus/carbon anode for durable and fast sodium-ion batteries显示文摘The practical applications of high-capacity alloy-type anode materials in sodium-ion batteries(SIBs)are challenged by their vast volume effects and resulting unstable electrode-electrolyte interphases during discharge-charge cycling.Taking red phosphorus(P)/carbon anode material as an example,we report an on-site conversion reaction to intentionally eliminate the volume effect-dominated surface P and yield an ionically conducting layer of Na3PS4solid-state electrolyte on the composite.Such a surface reconstruction can significantly suppress the electrode swelling and simultaneously enable the activation energy of interfacial Na+transfer as low as 36.7 k J mol^(-1),resulting in excellent electrode stability and ultrafast reaction kinetics.Consequently,excellent cycling performance(510 mA h g^(-1)at 5 A g^(-1)after 1000 cycles with a tiny capacity fading rate of 0.016%per cycle)and outstanding rate capability(484 mA h g^(-1)at 10 A g^(-1)are achieved in half cells.When coupled with Na_(3)V_(2)(PO4)3cathode,the full cells exhibit 100%capacity retention over 200 cycles at 5C with an average Coulombic efficiency of 99.93%and a high energy density of 125.5 W h kg^(-1)at a power density of 8215.6 W kg^(-1)(charge or discharge within~49 s).Remarkably,the full cell can steadily operate at a high areal capacity of 1.9 mA h cm^(-2),the highest level among red P-based full SIBs ever reported. | Jiangping Song Xin Peng Dan Liu Hao Li Mengjun Wu Kan Fang Xinxin Zhu Xinyuan Xiang Haolin Tang | 2023 | Journal of Energy Chemistry2023,,5: | 0 |
| 16 | NIR assignment of isopsoralen by 2D-COS technology and model application in Yunkang Oral Liquid显示文摘Near infrared(NIR)assignment of Isopsoralen was performed using deuterated chloroform solvent and two-dimensional correlation spectroscopy(2D-COS)technology.Yunkang Oral Liquid was applied to study Isopsoralen,the characteristic bands by spectral assignment as well as the bands by interval partial least squares(iPLS)and synergy interval partial least squares(siPLS)were used to establish partial least squares(PLS)model.The coefficient of determination in calibration(R^(2)_(cal))were 0.9987,0.9970 and 0.9982.The coefficient of determination in cross validation(R^(2)_(val)) T were 0.9985,0.9921 and 0.9982.The coe±cient of determination in prediction(R^(2)_(pre)) T were 0.9987,0.9955 and 0.9988.The root mean square error of calibration(RMSEC)were 0.27,0.40 and 0.31 ppm.The root mean square error of cross validation(RMSECV)were 0.30,0.67 and 0.32 ppm.The root mean square error of prediction(RMSEP)were 0.23,0.43 and 0.22 ppm.The residual predictive deviation(RPD)were 31.00,16.58 and 32.41.It turned out that the characteristic bands by spectral assignment had the same results with the chemometrics methods in PLS model.It provided guidance for NIR spectral assignment of chemical compositions in Chinese Materia Medica(CMM). | Yanling Pei Zhisheng Wu Xinyuan Shi Xiaoning Pan Yanfang Peng Yanjiang Qiao | 2015 | Journal of Innovative Optical Health Sciences2015,8,6: | 0 |
| 17 | A Comparison of Two Approaches for Damage Evaluation on Optimal Mitigation and Adaptation Responses in China显示文摘Climate policies making are strongly impacted by the approach of damage evaluation.China is leading carbon dioxide(CO2)emissions in the world,and has agreed with Paris agreement to reduce CO2 emissions.China is also expected to be negatively impacted by climate change.One of main concerns is how to assess and monetize the climate damage from country-specific level.This paper builds a model comprising two approaches of damage evaluation and assesses China's mitigation and adapt at ion responses by 2100 for both of no policy and Paris agreemen t policy.Tt has the following findings:First,the emissions pathway and nonfossil fuel consumption share of total energy consumption differs slightly between the two approaches of damage evaluation.Second,with the Burkes approach,the climate damage avoided by adaptation is increasingly higher than that by mitigation when investment in adaptation starts to be massively injected with faster increasing trend by 2045.Third,climate expenses should be invested more to address higher level of the climate damage evaluated by the Burkes approach than by the Mannes approach.Fourth,the main findings in this paper are robust in terms of uncertain ties in the parame ters of damage function. | PENG Pan REN Xinyuan ZHU Lei FAN Ying MASSIMO Tavoni | 2019 | Journal of Systems Science & Complexity2019,32,6: | 0 |
| 18 | Proximity Chemistry in Living Systems显示文摘Enzyme-and catalyst-generated reactive species have been leveraged in the past decade to covalently label biomolecules within a short range of a defined site or space inside cells or at the cell–cell interface.Due to their high spatial resolution,such proximity labeling strategies have been coupled with various bioanalytical techniques for dissecting dynamic and complex biological processes.Here,we review the development of enzyme-and catalyst-triggered proximity chemistry and their applications to identifying protein interaction networks as well as cell–cell communications in living systems. | Yanjun Liu Yun Ge Ruxin Zeng William Shu Ching Ngai Xinyuan Fan Peng R.Chen | 2023 | CCS Chemistry2023,5,4: | 0 |
| 19 | OGT介导的糖修饰在Hippo通路激活和肿瘤发生中发挥重要作用显示文摘文章简介研究人员发现,肿瘤细胞可以响应细胞外葡萄糖浓度的变化,Hippo通路的核心蛋白YAP可以发生O-糖基化修饰。YAP的O-糖修饰由O糖基化转移酶OGT和糖苷酶OGA调控。 | Changmin Peng Yue Zhu Wanjun Zhang Qinchao Liao Yali Chen Xinyuan Zhao Qiang Guo Pan Shen Bei Zhen Xiaohong Qian Dong Yang Jin-San Zhang Dongguang Xiao 秦伟捷 裴华东 | 2018 | 科学新闻2018,0,4: | 0 |