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| 1 | Heat-induced Internal Strain Relaxation and its Effect on the Microstructure of Polyacrylonitrile-based Carbon Fiber显示文摘The transformation of the internal strain and its effect on the microstructure of polyacrylonitrile-based carbon fiber during the high-temperature graphitization were investigated.The internal compressive strain within the carbon turbostratic structure was confirmed through a careful analysis by wide-angle X-ray diffraction and Raman spectroscopy.Heat-induced strain/stress relaxation along the fiber axis was observed and was found to have a profound effect on the structure of both the crystallites and microvoids.The results indicated that,the relaxation of residual strain changed the graphite layers from a wrinkled and distorted morphology to a straight and smooth one,and consequently led the crystallites to stack closely and orderly with increasing stack height.The strain relaxation also changed the morphology of crystallites and microvoids,resulting in an anisotropic growth for the latters. | Denghua Li Chunxiang Lu Gangping Wu Yu Yang Zhihai Feng Xiutao Li Feng An Baoping Zhang | 2014 | Journal of Materials Science & Technology2014，30，10： | 5 |
| 2 | Acetone Sensors Based on La^(3+) Doped ZnO Nano-rods Prepared by Solvothermal Method显示文摘La3+ doped ZnO nano-rods with different doping concentration were prepared via solvothermal method.The doped ZnO nano-rods were characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM),respectively.The effect of La3+ doping on the gas-sensing properties was investigated.The results revealed that the sensor based on 6 mol% La3+ doped ZnO nano-rods exhibited high response to dilute acetone,and the responses to 0.01×10-6 acetone reached 2.4 when operating at 425 ℃.The response time and the recovery time for 0.01×10-6 acetone were only 16 and 3 s,respectively. | Xiangfeng Chu Xiaohua Zhu Yongping Dong Xiutao Ge Shouquan Zhang Wenqi Sun | 2012 | Journal of Materials Science & Technology2012，28，3： | 4 |
| 3 | Ultra-wide-dynamic-range gas sensing by optical pathlength multiplexed absorption spectroscopy显示文摘Laser absorption spectroscopy(LAS) has become the most widely used laser spectroscopic technique for gas detection due to its capability of accurate quantification and straightforward operation. However, since resolving weak absorption and averting over-absorption are always mutually exclusive, the dynamic range of the LAS-based gas sensor is limited and insufficient for many applications in fundamental study and industry. To overcome the limitation on the dynamic range, this article reports optical pathlength(OPL) multiplexed absorption spectroscopy using a gas cell having multiple internal reflections. It organically fuses together the transmission and reflection operation modes: the former directly uses the entire OPL of the gas cell, while the latter interrogates different internal short OPLs by optical interferometry, yielding >100-fold OPL variation. The achieved dynamic range is more than 6 orders of magnitude that surpasses other LAS techniques by 2–3 orders of magnitude. The proposed method promotes a novel way for the development of large-dynamic-range spectroscopic gas sensors for fundamental studies and industrial applications. | XIUTAO LOU YABO FENG SHUNHU YANG YONGKANG DONG | 2021 | Photonics Research2021，9，2： | 4 |
| 4 | Rapid Detection of Sildenafil Drugs in Liquid Nutraceuticals Based on Surface-Enhanced Raman Spectroscopy Technology显示文摘在这研究,提高表面的拉曼光谱学(重量的单位) 技术被用来很快检测非法增加的 sildenafil 药。由密度的详细归属分析功能的理论(DFT ) 被用来指导特定的实验。拉曼信号从银胶体(Ag 关口) 被获得底层,和他们面对矿物质盐增加了,钾碘化物(KI ) 。这些方法在象 1 獳? 敷椠汬獵牴瑡 ? 桴 ? 潰整瑮慩?景琠敨渠睥栠略楲瑳捩猠档浥 e 一样低的水的答案检测了 | Hang Zhao Wuliji Hasi Lin Bao Siqingaowa Han Xuanyu Sha Jia Sun Xiutao Lou Dianyang Lin Zhiwei Lv | 2017 | Chinese Journal of Chemistry2017，35，10： | 3 |
| 5 | Synthesis of carbon-coated Li4Ti5O12 and its electrochemical performance as anode material for lithium-ion battery显示文摘Carbon-coated Li_4Ti_5O_(12) sample was synthesized by a sol-gel method. The Li_4Ti_5O_(12) powders were obtained by calcinations of the gels at 750, 800, 850,900 ℃ at N_2 atmosphere. The structure, morphology and electrochemical properties of the materials were characterized by SEM, XRD and charge and discharge. The final product sintered at 850 ℃ demonstrates excellent performance with a specific capacity of 163.5 mAh/g after 100 cycles at 1C. Furthermore, the discharge specific capacity of the sample can retain 80 mAh/g at 10C. | Shouquan Zhang Xiutao Ge Chunhua Chen | 2017 | Chinese Chemical Letters2017，28，12： | 2 |
| 6 | Effect of ZrB 2 on the ablation properties of carbon composites显示文摘 | Xiutao Li Jingli Shi Guobing Zhang Hua Zhang Quangui Guo Lang Liu | 2005 | Materials Letters2005，，7： | 1 |
| 7 | Preparation of magnetic micmspheres with thiol- containing polymebrushes and immobilization of gold nanoparticles in the brush layer 显示文摘 | Xiutao Li Yan Liu Zhcnhua Xu | 2011 | European Polymer Journal2011，，47： | 1 |
| 8 | Heat Insulation and Dissipation Processes in Nordic Seas in the Summer显示文摘The Nordic Seas have a significant impact on the climate system.Here 23-day air-sea heat fluxes were analyzed from an in situ air-sea coupled buoy deployed in the Lofoten Basin from 5 August 2012 to 27 August 2012.The buoy captured two stages of strong south and north winds.The observations indicate that warm and wet air transported by the south wind can lead to decreased sensible and latent heat fluxes and net longwave radiation.The total oceanic heat loss was 50-60Wm−2.Thus,this stage was called the heat insulation process.By contrast,the heat dissipation process occurred with the north wind condition dur-ing advection of the cold and dry air.During this process,sensible and latent heat fluxes and net longwave radiation notably in-creased.The total oceanic heat loss during the heat dissipation process reached 240Wm−2,which was four-fold greater than that in the heat insulation process.Given that the heat insulation process is dominant in summertime,the ocean lost minimal heat but absorbed strong solar energy.Thus,a large quantity of energy was stored in the ocean.Heat was transported to the Arctic Ocean and accelerated Arctic warming.The heat dissipation process is dominant in autumn and winter when the ocean releases consid-erably more energy.The two processes revealed in this paper can be applied to warm-water areas in high latitudes. | GAO Lin ZHAO Jinping LI Shimin FAN Xiutao LIU Shixuan | 2021 | Journal of Ocean University of China2021，20，6： | 1 |
| 9 | Immobilization of penicillin G acylase on poly -grafted magnetic microspheres显示文摘 | HUANG Junshengj LI Xiutao ZHENG Yanhui | 2008 | Macromolecular Bioscience2008，8，6： | 1 |
| 10 | On Algebraic Immunity of Trace Inverse Functions on Finite Fields of Characteristic Two显示文摘The trace inverse functions Tr(λx^(-1)) over the finite field F_(2~n) are a class of very important Boolean functions and are used in many stream ciphers such as SFINKS,RAKAPOSHI,the simple counter stream cipher(SCSC) presented by Si W and Ding C(2012),etc.In order to evaluate the security of those ciphers in resistance to(fast) algebraic attacks,the authors need to characterize algebraic properties of Tr(λx^(-1)).However,currently only some bounds on algebraic immunity of Tr(λx^(-1)) are given in the public literature,for example,the NGG upper bound and the Bayev lower bound,etc.This paper gives the exact value of the algebraic immunity of Tr(λx^(-1)) over F_(2~n),that is,AI(Tr(λx^(-1))) =[2n^(1/2)]- 2,where n ≥ 2,A ∈ F_(2~n) and λ≠ 0,which shows that Dalai's conjecture on the algebraic immunity of Tr(λx^(-1)) is correct.What is more,the authors demonstrate some weak properties of Tr(λx^(-1)) against fast algebraic attacks. | FENG Xiutao GONG Guang | 2016 | Journal of Systems Science & Complexity2016，29，1： | 1 |
| 11 | A Review of WBG and Si Devices Hybrid Applications显示文摘In recent years,next-generation power semiconductor devices,represented by silicon carbide(SiC)and gallium nitride(GaN),have gradually emerged.Because wide-bandgap(WBG)devices have better electrical characteristics than those of silicon(Si)based devices,they have attracted increased attention both from academic researchers and industrial engineers.Employing WBG devices will further improve the efficiency and power density of power converters.However,the current price of WBG devices remains extremely high.Thus,some researches have focused on the hybrid utilization of WBG devices and Si-based devices to achieve a tradeoff between the performance and cost.To summarize the current research on WBG/Si hybrid applications,the issues mentioned above with representative research approaches,results,and characteristics,are systematically reviewed.Finally,the current research on WBG/Si hybrid applications and their future trends are discussed. | Li Zhang Zhongshu Zheng Xiutao Lou | 2021 | Chinese Journal of Electrical Engineering2021，7，2： | 0 |
| 12 | Comprehensive analysis of complement-associated molecular features in hepatocellular carcinoma显示文摘The complement cascade plays a“complementing”role in human immunity.However,the potential roles of complement system in impacting molecular and clinical features of hepatocellular carcinoma(HCC)remain unclear.In this study,eleven public datasets are analyzed to compare the complement status between normal and cancerous samples based on 18 classical complement-associated genes.The complement scores are constructed to quantify complement signatures of individual tumors.HCC patients in the The Cancer Genome Atlas(TCGA)cohort are focused to perform systematical analyses between complement status and immune infiltration,miRNA expression,DNA methylation,clinicopathological features,and drug response.The results show that the complement scores in normal tissues are dramatically higher than those of tumor tissues.Tumor samples in the TCGA cohort are classified into complement score-low and score-high groups.Pathway analysis reveals that tumor-promoting pathways are typically inhibited in complement score-high group.This study also shows that tumor-killing immune cells,such as CD8^(+)T cells and natural killer cells are abundant and tumor-suppressing miRNAs are upregulated in complement score-high samples.In addition,we identify that complement scores are negatively correlated with certain clinical features,including pathological grade,clinical-stage,and portal vein invasion.Moreover,various molecular features together with complement scores are found to be correlated with response to anti-cancer drugs.This study provides a comprehensive and multidimensional analysis conducive to understanding the role of complement in cancer. | Run Huang Guiqi Zhu Xiutao Fu Weiren Liu Chenyang Tao Jun Gao Weifeng Qu Yuan Fang Xifei Jiang Zhenbin Ding Jian Zhou Yinghong Shi Jia Fan Zheng Tang | 2022 | Acta Biochimica et Biophysica Sinica2022，54，11： | 0 |
| 13 | Regulation of Reproduction in Delayed Gametophyte of Saccharina japonica (Laminariales, Phaeophyceae): Effects of Light Intensity, Quality and Photoperiod显示文摘Saccharina japonica gametophytes can survive a long period under unfavorable environmental conditions,while they also delay in growth and/or reproduction.Although the reproduction in delayed gametophyte of S.japonica was known to be strongly influenced by light intensity,light quality,and photoperiod,no previous studies have evaluated their interactive effects on gametogenesis.To evaluate these effects,we used an orthogonal experiment to expose delayed gametophytes of S.japonica to different light intensities,light qualities,and photoperiods for 12 days.The results showed that changes in light intensity rather than light quality and photoperiod significantly affected the relative growth rates of the delayed gametophytes.Blue light had the greatest promotion on reproduction rate.The optimal light conditions in the early vegetative growth phase in gametogenesis induction for the delayed gametophytes were at 60–80μmol photons m^(−2) s^(−1) with daylength of 12 or 16 hours under white or blue light.When the delayed gametophytes were maintained in a constant light condition from delayed state to gametogenesis,the beneficial photoperiods for vegetative growth and reproductive rate were both 16L(16 hours of light):8D(8 hours of dark).However,when the delayed S.japonica gametophytes achieve the optimal growth state during the first 6 days and then they were cultured at different light conditions for the following 6 days,the reproduction rate increased as the daylength decreased and attained a peak value in group of 8L:16D photoperiod,indicating that photoperiod adjustment at the transition period is crucial in the gametogenesis induction process of delayed gametophyte of S.japonica. | WANG Xiao LIANG Zhourui LIU Fuli ZHANG Pengyan YUAN Yanmin LIU Yi WANG Wenjun SUN Xiutao | 2023 | Journal of Ocean University of China2023，22，1： | 0 |
| 14 | The Adjacency Graphs of a Class of LFSRs and Their Applications显示文摘Nonlinear feedback shift registers(NFSRs)are widely used in communication and cryptography.How to construct more NFSRs with maximal periods,which can generate sequences with maximal periods,i.e.,de Brujin sequences,is an attractive problem.Recently many results on constructing de Bruijn sequences from adjacency graphs of Linear feedback shift registers(LFSRs)by means of the cycle joining method have been obtained.In this paper we discuss a class of LFSRs with characteristic polynomial p^2(x),where p(x)is a primitive polynomial of degree n≥2 over the finite field F2.As results,we determine their cycle structures and adjacency graphs,and further construct a class of new de Bruijn sequences from these LFSRs. | WANG Hui FENG Xiutao | 2019 | Chinese Journal of Electronics2019，28，6： | 0 |
| 15 | Straightforward Guess and Determine Analysis Based on Genetic Algorithm显示文摘With the development of artificial intelligence,the genetic algorithm has been widely used in many fields.In cryptography,the authors find it is natural to code an individual and design its fitness in a genetic algorithm for a straightforward guess and determine analysis(SGDA,in short).Based on this observation,the authors propose an SGDA based on genetic algorithm.Comparing it with the other three SGDAs based on exhaustive search,MILP method and CPP method respectively,the authors illustrate its effectiveness by three stream ciphers:Small scale SNOW 2.0,medium scale Enocoro-128v2 and large scale Trivium.The results show our method is significantly superior to them,especially for Trivium,the method can find a solution of 165 variables in less than one hour,while the other three methods are not applicable due to its enormous search space of size 2^(619.37).As far as we know,it is a best solution in an SGDA for Trivium so far. | CAO Chunping CEN Zhe FENG Xiutao WANG Zhangyi ZHU Yamin | 2022 | Journal of Systems Science & Complexity2022，35，5： | 0 |
| 16 | Reigning in AI Intelligent technology's implications for human rights protection显示文摘In the rapidly evolving landscape of artificial intelligence(AI),governance frameworks play a pivotal role in ensuring that technological advances align with ethical standards and human rights protection.China combines regulation,ethical norms,and a focus on human rights in a comprehensive approach to AI governance. | Han Xiutao | 2023 | Beijing Review2023，66，52： | 0 |
| 17 | Gas sensing with 7-decade dynamic range by laser vector spectroscopy combining absorption and dispersion显示文摘Laser absorption spectroscopy(LAS) has been widely used for unambiguous detection and accurate quantification of gas species in a diverse range of fields. However, up-to-date LAS-based gas sensors still face challenges in applications where gas concentrations change in a wide range, since it is extremely difficult to balance spectral analysis strategies for different optical thicknesses. Here we present laser vector spectroscopy that combines absorption spectroscopy with dispersion spectroscopy, simultaneously taking advantage of the former's high sensitivity in the low-concentration region and the latter's high linearity in the high-concentration region. In the proof-of-concept demonstration of acetylene measurement, it achieves a linear dynamic range of 6 × 10^(7)(R^(2)> 0.9999), which surpasses all other state-of-the-art LAS techniques by more than an order of magnitude,with the capability of highly accurate quantification retained. The proposed laser spectroscopic method paves a novel way of developing large-dynamic-range gas sensors for environmental, medical, and industrial applications. | XIUTAO LOU YUE WANG NING XU YONGKANG DONG | 2023 | Photonics Research2023，11，10： | 0 |
| 18 | Classification and counting on multi-continued fractions and its application to multi-sequences显示文摘In the light of multi-continued fraction theories, we make a classification and counting for multi-strict continued fractions, which are corresponding to multi-sequences of multiplicity m and length n. Based on the above counting, we develop an iterative formula for computing fast the linear complexity distribution of multi-sequences. As an application, we obtain the linear complexity distributions and expectations of multi-sequences of any given length n and multiplicity m less than 12 by a personal computer. But only results of m=3 and 4 are given in this paper. | DAI ZongDuo FENG XiuTao | 2007 | Science in China(Series F)2007，50，3： | 0 |
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