|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Detecting soil salinity with arid fraction integrated index and salinity index in feature space using Landsat TM imagery显示文摘Modeling soil salinity in an arid salt-affected ecosystem is a difficult task when using remote sensing data because of the complicated soil context(vegetation cover,moisture,surface roughness,and organic matter)and the weak spectral features of salinized soil.Therefore,an index such as the salinity index(SI)that only uses soil spectra may not detect soil salinity effectively and quantitatively.The use of vegetation reflectance as an indirect indicator can avoid limitations associated with the direct use of soil reflectance.The normalized difference vegetation index(NDVI),as the most common vegetation index,was found to be responsive to salinity but may not be available for retrieving sparse vegetation due to its sensitivity to background soil in arid areas.Therefore,the arid fraction integrated index(AFII)was created as supported by the spectral mixture analysis(SMA),which is more appropriate for analyzing variations in vegetation cover(particularly halophytes)than NDVI in the study area.Using soil and vegetation separately for detecting salinity perhaps is not feasible.Then,we developed a new and operational model,the soil salinity detecting model(SDM)that combines AFII and SI to quantitatively estimate the salt content in the surface soil.SDMs,including SDM1 and SDM2,were constructed through analyzing the spatial characteristics of soils with different salinization degree by integrating AFII and SI using a scatterplot.The SDMs were then compared to the combined spectral response index(COSRI)from field measurements with respect to the soil salt content.The results indicate that the SDM values are highly correlated with soil salinity,in contrast to the performance of COSRI.Strong exponential relationships were observed between soil salinity and SDMs(R2>0.86,RMSE<6.86)compared to COSRI(R2=0.71,RMSE=16.21).These results suggest that the feature space related to biophysical properties combined with AFII and SI can effectively provide information on soil salinity. | Fei WANG Xi CHEN GePing LUO JianLi DING XianFeng CHEN | 2013 | Journal of Arid Land2013，5，3： | 14 |
| 2 | A Geometric Understanding of Deep Learning显示文摘This work introduces an optimal transportation(OT)view of generative adversarial networks(GANs).Natural datasets have intrinsic patterns,which can be summarized as the manifold distribution principle:the distribution of a class of data is close to a low-dimensional manifold.GANs mainly accomplish two tasks:manifold learning and probability distribution transformation.The latter can be carried out using the classical OT method.From the OT perspective,the generator computes the OT map,while the discriminator computes the Wasserstein distance between the generated data distribution and the real data distribution;both can be reduced to a convex geometric optimization process.Furthermore,OT theory discovers the intrinsic collaborative-instead of competitive-relation between the generator and the discriminator,and the fundamental reason for mode collapse.We also propose a novel generative model,which uses an autoencoder(AE)for manifold learning and OT map for probability distribution transformation.This AE–OT model improves the theoretical rigor and transparency,as well as the computational stability and efficiency;in particular,it eliminates the mode collapse.The experimental results validate our hypothesis,and demonstrate the advantages of our proposed model. | Na Lei Dongsheng An Yang Guo Kehua Su Shixia Liu Zhongxuan Luo Shing-Tung Yau Xianfeng Gu | 2020 | Engineering2020，6，3： | 10 |
| 3 | From a projective invariant to some new properties of algebraic hypersurfaces显示文摘Projective invariants are not only important objects in mathematics especially in geometry,but also widely used in many practical applications such as in computer vision and object recognition. In this work,we show a projective invariant named as characteristic number,from which we obtain an intrinsic property of an algebraic hypersurface involving the intersections of the hypersurface and some lines that constitute a closed loop. From this property,two high-dimensional generalizations of Pascal's theorem are given,one establishing the connection of hypersurfaces of distinct degrees,and the other concerned with the intersections of a hypersurface and a simplex. | LUO ZhongXuan ZHOU XinChen GU David XianFeng | 2014 | Science China Mathematics2014，57，11： | 8 |
| 4 | Far-field super-resolution imaging by nonlinearly excited evanescent waves显示文摘Abbe’s resolution limit,one of the best-known physical limitations,poses a great challenge for any wave system in imaging,wave transport,and dynamics.Originally formulated in linear optics,the Abbe limit can be broken using nonlinear optical interactions.We extend the Abbe theory into a nonlinear regime and experimentally demonstrate a far-field,label-free,and scan-free super-resolution imaging technique based on nonlinear four-wave mixing to retrieve near-field scattered evanescent waves,achieving a sub-wavelength resolution ofλ∕5.6.This method paves the way for numerous new applications in biomedical imaging,semiconductor metrology,and photolithography. | Zhihao Zhou Wei Liu Jiajing He Lei Chen Xin Luo Dongyi Shen Jianjun Cao Yaping Dan Xianfeng Chen Wenjie Wan | 2021 | Advanced Photonics2021，3，2： | 6 |
| 5 | Trade-offs and Synergies of Ecosystem Services in the Taihu Lake Ba- sin of China显示文摘Understanding the spatial interactions among multiple ecosystem services is crucial for ecosystem services management. Ecosystem services, including crop production, freshwater supply, aquatic production, net primary production, soil conservation, water conservation, flood regulation, forest recreation, were measured at 1-km grid scale covering the Taihu Lake Basin(TLB) of China. Our objective is to get a comprehensive understanding of the spatial distributions, trade-offs, synergies of multiple ecosystem services across the TLB. Our results found that: 1) majority of ecosystem services were clustered in space and had a similar spatial distribution pattern with the geographical resource endowment. Most of the landscape contributed a high supply of no services, one or two, and a low supply of three to seven services. 2) There were high correlation between forest recreation and freshwater supply and regulating services. Aquatic production had low correlation with other services. 3) The changes of provisioning services led to trade-offs between regulating services and cultural services in the TLB, while synergies mainly occurred among the provisioning service. 4) The spatial relationships of multiple services are consistent at 1-km spatial scale, counties and provinces. This research could help integrate multiple ecosystem services across scales and serve as a reference for decision making. | QIAO Xuning GU Yangyang ZOU Changxin WANG Lei LUO Juhua HUANG Xianfeng | 2018 | Chinese Geographical Science2018，28，1： | 5 |
| 6 | 多西他赛联合同步放疗治疗晚期鼻咽癌的临床研究(英文)显示文摘Objective:The aim of this study was to study the short-term curative effects and adverse reactions of docetaxel(DOC) in concurrent chemoradiotherapy compared to DDP plus 5-Fu(DF) combined with concurrent radiotherapy in patients with advanced nasopharyngeal carcinoma.Methods:Thirty-three patients in the experimental group(DOC group) were given DOC 25 mg/m 2 ivgtt,d1,7 times,concurrent radiotherapy was performed from d1.Thirty-three patients in the control group(DF group) were given cisplatin 25 mg/m 2 ivgtt d1–3 and 5-Fu 550 mg/m 2 iv,d1–5,3 weeks a cycle,2 cycles,and concurrent radiotherapy was performed from d1.Six MV X-ray and 9 MeV electronic line for external irradiation were adopted in concurrent radiotherapy.Results:The response rates of DOC group and DF group were 90.9% and 93.9%,the rates of neutropenia were 45.45% and 67.74%,and the rates of oral mucositis were 60.61% and 90.32%.Conclusion:The difference of shortterm curative effects between DOC group and DF group was not statistically significant in patients with advanced nasopharyngeal carcinoma.The rates of adverse reactions were lower in DOC group.DOC combined with concurrent radiotherapy could be a new choice for patients with advanced nasopharyngeal carcinoma. | Wei Luo Wei Ge Yongfa Zheng Xianfeng Pan Jing Song Huilin Xu Pingpo Ming | 2013 | The Chinese-German Journal of Clinical Oncology2013，12，12： | 2 |
| 7 | The Universal Grey Transfer Matrix Method and Its Application in Calculating the Natural Frequencies of Systems显示文摘 | Huang Hong-Zhong Fan Xianfeng | 2006 | Journal of Mechanical Engineering2006，52，9： | 1 |
| 8 | Overexpression of FADD enhances 5-fluorouracil-induced apoptosis in colorectal adenocarcinoma cells显示文摘 | Anning Yin Yingan Jiang Xianfeng Zhang Hesheng Luo | 2010 | Medical Oncology2010，，2： | 1 |
| 9 | A Kriging-based hybrid optimization algorithm for slope reliability analysis 显示文摘 | LUO Xianfeng LI Xin ZHOU Jing | 2012 | Structural Safety2012，34，： | 1 |
| 10 | A posterior inverted L-shaped approach for the treatment of posterior bicondylar tibial plateau fractures显示文摘 | Xianfeng He Penghan Ye Yong Hu Lei Huang Feng Zhang Guanyi Liu Yongping Ruan Congfeng Luo | 2013 | Archives of Orthopaedic and Trauma Surgery2013，，1： | 1 |
| 11 | The universal grey transfer matrix method and its applica tion in calculating the natural frequencies of systems 显示文摘 | Luo Youxin Huang Hongzhong Fan Xianfeng | 2006 | Strojniski Vestnik-Journal of Mechanical Engi- neering2006，52，9： | 1 |
| 12 | New insights into the formation of silicon-oxygen layer on lithium metal anode via in situ reaction with tetraethoxysilane显示文摘Lithium metal-based secondary batteries are very promising for next generation power battery due to their high energy density.However,lithium anodes suffer from poor electrochemical reversibility in organic electrolytes due to Li dendrites and instability of the solid electrolyte interphase.Recent research demonstrated that the problem can be alleviated via tetraethoxysilane(TEOS)treated lithium metal to form a silicon oxide layer on the lithium surface,however,its reaction mechanism is controversial.Herein,we deeply explore the reaction mechanism between TEOS and Li and propose:Fresh Li can directly react with TEOS even though no lithium hydroxide exists on the lithium surface,and the participation of water will accelerate the reaction process.Moreover,it was found that the silicon oxide layer can promote the uniform deposition of lithium ions by providing lithiophilic nucleation sites,thereby achieving a long cycle life of Li metal batteries. | Yang Luo Tianyu Li Hongzhang Zhang Ying Yu Arshad Hussain Jingwang Yan Huamin Zhang Xianfeng Li | 2021 | Journal of Energy Chemistry2021，30，5： | 1 |
| 13 | Rational construction of multiple hollow silicalite-1 zeolite with enhanced quasi acidity for robust vapor-phase Beckmann rearrangement显示文摘Developing efficient and stable zeolites for vapor-phase Beckmann rearrangement of cyclohexanone oxime is still a great challenge to realizeε-caprolactam(CPL)green production.In this work,the hierarchical porous silicalite-1 zeolites with multiple hollow structure(S-1-M)are explored by in-situ desilication−recrystallization post-treatment of spongy highway-like zeolites(S-1-S),which are synthesized through silanization synthesis of conventional bulky silicalite-1(S-1).Compared to S-1,S-1-M achieves superior catalytic performance,with improving the CPL selectivity from 85.7%to 94.1%and prolonging the catalyst lifetime from 74 to 126 h at a weight hourly space velocity(WHSV)of 6 h^(−1).Comprehensive physiochemical studies demonstrate that the highly dispersed intracrystalline cavities within S-1-M endow greater mass diffusion and better quasi acidity inducing by the enhanced H-bonds among abundant H-bonded silanols,which is cooperatively responsible for its superior catalytic performance. | Peng Zhang Xianfeng Yi Changjiu Xia Xinxin Peng Shuai Zhang Chengxiang Li Anmin Zheng Xiaoxin Zhang Yibin Luo Lifeng Cui Fuhong Yu Xingtian Shu | 2023 | Nano Research2023，16，5： | 1 |
| 14 | A Kring based Hybrid Optimization Algorithm for Slope Reliability Analysis显示文摘 | Luo Xianfeng Li Xin Zhou Jing | 2012 | Structural Safety2012，34，1： | 1 |
| 15 | Hyper-chaotic mapping newton Iterative method to mechanism synthesis 显示文摘 | Luo Youxin Li Dazhi Fan Xianfeng | 2008 | Journal of Mechanical engineering2008，54，5： | 1 |
| 16 | An Ethical Study of Cross-Cultural Transmission显示文摘Cross-culural transmission is a complex social practice with distinct ethical attributes.Chinese and Western ethics have different connotations which always result in cultural conflicts in the cross-cultural transmission.Therefore,people should follow the thical stratcgies of abandoning ethnocentrism,advocating culural diversity and taking respect as the bottom-line ethics.Ethical turn is inevitable in the study of cros-cultural transmission. | Luo Xianfeng Tan Xuelian | 2020 | 学术界2020，，10： | 0 |
| 17 | Space advanced technology demonstration satellite显示文摘The Space Advanced Technology demonstration satellite(SATech-01),a mission for low-cost space science and new technology experiments,organized by Chinese Academy of Sciences(CAS),was successfully launched into a Sun-synchronous orbit at an altitude of~500 km on July 27,2022,from the Jiuquan Satellite Launch Centre.Serving as an experimental platform for space science exploration and the demonstration of advanced common technologies in orbit,SATech-01 is equipped with 16 experimental payloads,including the solar upper transition region imager(SUTRI),the lobster eye imager for astronomy(LEIA),the high energy burst searcher(HEBS),and a High Precision Magnetic Field Measurement System based on a CPT Magnetometer(CPT).It also incorporates an imager with freeform optics,an integrated thermal imaging sensor,and a multi-functional integrated imager,etc.This paper provides an overview of SATech-01,including a technical description of the satellite and its scientific payloads,along with their on-orbit performance. | ZHANG XiaoFeng CHEN Wen ZHU XiaoCheng MENG Na HE JunWang BI XingZi ZHANG YongHe SHI Qi LI Fei LIU Rui FENG ZhengGong LIU Liu LI JinSong WU HaiChen XU DongXiao LI TaiJie HUANG JiangJiang LIU Shuo LI TianTong YU XianSheng GAO Yang ZHOU Heng BAN HanYu ZHANG YanLi ZHANG YueTing YANG YingQuan HE Tao DUAN XuLiang CHEN Xin WANG YaMin SUN AnTai ZHANG KuoXiang SUN Ying WANG YaoBin FAN ChengCheng XIONG ShaoLin LI XinQiao WEN XiangYang LING ZhiXing SUN XiaoJin ZHANG Chen BAI XianYong WANG ZhanShan DENG YuanYong TIAN Hui YANG JianFeng XUE HongBo SANG Peng LIU JinGuo ZHENG HuiLong ZHU Xiang HE JianWu LI Hui XU LuXiang XU ShuYan CHEN WenWu LIU ZhenDong WANG ZhaoLi MAO XiangLong GAO Rong LI ZongXuan DING GuoPeng WANG XinYu DOU RunJiang WENG LuBin LUO Hao WANG YaPing LIANG XianFeng FANG ZiRuo | 2024 | Science China(Technological Sciences)2024，67，1： | 0 |
| 18 | Superlyophilic Interfaces Assisted Thermal Management显示文摘Thermal management has become a critical issue owing to the increasing need for various devices including heat dissipation and adsorption.Recently,the rapid growth of scientific reports is seen to improve thermal management efficiency by developing materials with high transfer coefficient and surface improvement to enhance heat transfer rate.Inspired by nature,constructing superlyophilic interfaces has been proved to be an effective way for thermal management and applied in industry and daily life.Herein,state-of-the-art developments of superlyophilic interfaces assisted thermal management are reported mainly from four perspectives around boiling,evaporation,radiation,and condensation.In particular,we discussed the unique role of superlyophilic interfaces during the heat transfer process,such as increasing bubble detachment rate,superspreading assisted efficient evaporation,directional liquid transfer in textiles during radiative cooling,and so forth.Finally,challenges of thermal management assisted by superlyophilic interfaces toward future applications are presented. | LUO Xianfeng ZHU Zhongpeng YOU Jun TIAN Ye JIANG Lei | 2022 | Chemical Research in Chinese Universities2022，38，3： | 0 |
| 19 | A Study of Translation Institutional Ethics显示文摘Traditional translation ethics characterized by translators’ ethics cannot provide a strong moral support to the translation practice,or guarantee the moral requirement towards translation activities in the social transformation caused by the market economy,because it does not have the power of punishment. Translation institutional ethics,however,a new form of translation ethics,integrates the translation ethic norm,translation regulations and relative laws together. As an inevitable outcome in the new era,it can escort the orderly and healthy translation activities. Its purpose is to strengthen the translators’moral consciousness,to sublimate their moral notions and to transfer from heteronomy to autonomy. | Luo Xianfeng Zhou Jin | 2017 | 学术界2017，，8： | 0 |
| 20 | On Lu Xun’s Responsibility Consciousness in Literary Translation显示文摘In literary translation,Lu Xun shouldered the mission and responsibility to his motherland,the people,education,language,literature and art.In his opinion,foreign literature and culture would bring “fire and light” to current society,provide Chinese children and youngsters with valuable readings and enhance the development of Chinese literature,language and characters.In his career of literary translation,Lu Xun fulfilled his long-cherished dream of being a “Spiritual Warrior” in China. | Gan Lu Luo Xianfeng | 2019 | 学术界2019，，7： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员