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| 1 | Jamming de-chirping radar using interrupted-sampling repeater显示文摘Interrupted-sampling repeater jamming (ISRJ) is a novel jamming mode for pulse compression radar in principle.In this paper,a jamming approach of applying ISRJ to de-chirping radar is presented.The principles of ISRJ are expounded,and the ways to achieve a train false target for de-chirping radar are analyzed.The characteristics of false target,including time-domain characteristic,frequency-domain characteristic and amplitude characteristic,are described.Based on this,the power requirement for jammer is put forward and the key elements that determine the space distribution location between true and false targets are discussed in detail.At last,simulation results are presented and addressed.This work is beneficial to the jamming design and use of ISRJ. | FENG DeJun TAO HuaMin YANG Yong LIU Zhong | 2011 | Science China(Information Sciences)2011，54，10： | 35 |
| 2 | Filling Rules of Bevel Gears in the Closed-die Cold Forging显示文摘The closed-died cold forging technology of the bevel gears used in Jada car was investigated. With the analysis of the strain field and velocity field of the plastic deformation and the endured forces of the dies, the filling rules for the metal were analyzed by the elastic-plastic finite element method (FEM). The results show that there is a great difference among closed-die cold forging, extrusion and forging, as far as the metal flowing is concerned. The outer addendum cannot be filled completely in the closed-die cold forging of the bevel gears, and the round angle will be formed. But it does not influence the application of the bevel gears. At the beginning, the rigid area is formed in the cavity of the lower die. And then it will move upwards to supply the metal for the gear filling. For the closed-die cold forging of the bevel gears, the force acting on the upper die and the lower die is significantly different. | Huamin LIU Liangju HUANG Shenhua YANG Shihong ZHANG | 2005 | Journal of Materials Science & Technology2005，21，6： | 3 |
| 3 | Cellulose derived biochar:Preparation,characterization and Benzo[α]pyrene adsorption capacity显示文摘Edible oil is prone to be contaminated by Benzo[a]pyrene(BaP)during production and processing.Adsorption is an important technology for the removal of BaP from edible oil,and biochar as a new type of adsorbent for the treatment BaP has received extensive attention.In this study,we prepared unmodified biochar and ZnCl_(2)-modified biochar from sesame straw cellulose(SSB and SSZ)and sesame capsule cellulose(SCB and SCZ),carried out structure characterization by Fourier Transform Infrared(FT-IR),Brunauer-Emmett-Teller(BET)and Scanning Electron Microscope(SEM),and finally evaluated their potential effectiveness in BaP removal from sesame oil.FT-IR results revealed that SSZ and SCZ showed higher peak intensities,indicating that they could provide more active sites for adsorption.The results of XRD presented that SSZ and SCZ had a higher graphitization degree than the unmodified biochar.SEM results showed that the SSZ and SCZ had more complex pore structure,which is beneficial to adsorption.BET analysis results showed that SSZ and SCZ had a higher specific surface area of 1622.83-1797.39 m^(2)/g and a better developed porous structure(the total pore volume Vtotal was 0.9434-1.0023 cm^(3)/g)than the SSB and SCB(specific surface area was 350.55-352.59 m^(2)/g,and Vtotal was 0.1907-0.1918 cm^(3)/g),indicating that modification promoted the formation of porous structure and thus improved the adsorption capacity of biochar.Adsorption experiments confirmed once again that the BaP removal rates of SSZ and SCZ(92.67%-96.13%)were much higher than that of unmodified biochar(3.34%-4.28%),and the BaP content in the sesame oil treated by SSZ and SCZ were far below the current EU maximum levels(2μg/kg).Therefore,the modified biochar from cellulose is a promising adsorbent for BaP removal.In future studies,the influences of bichar on the nutritional quality of edible oil should be taken into consideration so as to find an ideal active carbon substitute for BaP removal in edible oil. | Qiaoli Yang Yanxia Sun Wenhui Sun Zhao Qin Huamin Liu Yuxiang Ma Xuede Wang | 2021 | Grain & Oil Science and Technology2021，4，4： | 2 |
| 4 | Performance-enhanced and cost-effective triboelectric nanogenerator based on stretchable electrode for wearable SpO2 monitoring显示文摘Recently,stretchable and wearable health monitoring equipment has greatly improved human’s daily life,which sets higher demands for portable power source in stretchability,sustainability,and biocompatibility.In this work,we proposed a stretchable triboelectric nanogenerator(TENG)based on stretchable poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS)/porous carbon hybrid for oxyhemoglobin saturation(SpO2)monitoring.To combine advantages of carbon material for its high conductivity and organic electrode for its high stretchability,we spin-coated a solution of PEDOT:PSS/porous carbon onto a plasma-treated pre-stretched Ecoflex film to fabricate a stretchable electrode with rough surface.Due to its roughness and high potential difference with the dielectric material,the stretchable-electrode-based TENG exhibited better performance compared to the pristine TENG based on carbon or PEDOT:PSS material.The output voltage and current reached up to 51.5 V and 13.2μA as the carbon concentration increased.More importantly,the performance further increased under large strain(100%)which is suitable for wearable systems.Finally,the device demonstrated its application potential for powering a flexible blood oxygen monitor.This simple and cost-effective method can enhance the stretchability and stability of organic/inorganic electrode-based TENG,which paves the development of high-performance stretchable TENG. | Huamin Chen Wei Yang Cheng Zhang Mingqiang Wu Wenjie Li Yuxiao Zou Longfeng Lv Hualiang Yu Huizhen Ke Ruping Liu Yun Xu Jun Wang Zhou Li | 2022 | Nano Research2022，15，3： | 2 |
| 5 | Advances in the studies on the chemical components and bioaetivity of Eupatorium adenophorum spreng as a intruding species 显示文摘 | Yan Qiansheng Yang Jie Li Huamin | 2006 | J Beiiing Normal Univeristv: Nat Sci2006，42，1： | 1 |
| 6 | Active canopy sensor-based precision N management strategy for rice显示文摘 | Yinkun Yao Yuxin Miao Shanyu Huang Lei Gao Xiaobo Ma Guangming Zhao Rongfeng Jiang Xinping Chen Fusuo Zhang Kang Yu Martin Gnyp Georg Bareth Cheng Liu Liqin Zhao Wen Yang Huamin Zhu | 2012 | Agronomy for Sustainable Development2012，，4： | 1 |
| 7 | Process pa- rameters optimization of injection molding using a fast strip analysis as a surrogate model 显示文摘 | Zhao Peng Zhou Huamin Li Yang Li Dequn | 2010 | The International Journal of Advanced Manufacturing Technology2010，49，912： | 1 |
| 8 | Advances in the studies on the chemical components and bioaetivity of Eupatorium adenophorum spreng as a intruding species 显示文摘 | Yan Qiansheng Yang Jie Li Huamin | 2006 | J Beijing Normal Univeristy:Nat Sci2006，42，1： | 1 |
| 9 | Fast optimization of injection velocity profile based on graph theory显示文摘 | ZHAO Peng YANG Ding ZHOU Huamin | 2011 | Polymer-Plastics Technology and Engineering2011，50，： | 1 |
| 10 | Propagation of radial Airy array beams through atmospheric turbulence 显示文摘 | Chen Chunyi Yang Huamin Mohsen Kavenran et m | | Optics and Lasers in Engineering0，52，： | 1 |
| 11 | Effect of lanthanum ions on tRNA^(Phe) structure: Imino proton NMR spectroscopy显示文摘The effect of lanthanum ions on the structural and conformational change of yeast tRNA Phe was studied by 1H NMR. The results suggest that the tertiary base pair (G-15)(C-48), which was located in the terminal in the augmented dihydrouridine helix (D-helix), was markedly affected by adding La 3+ and shifted 0.33 downfield. Based pair (U-8)(A-14), which is associated with a tertiary interaction, links the base of the acceptor stem to the D-stem and anchors the elbow of the L structure, shifted 0.20 upfield. Another imino proton that may be affected by La 3+ in tRNA Phe is the tertiary base pair (G-19)(C-56). The assignment of this resonance is tentative since it is located in the region of highly overlapping resonances between 12.6 and 12.2. This base pair helps to anchor the D-loop to the TΨC loop. | TU Huamin 1, WU Yijie 2, YANG Yansheng 1*, GONG Menglian 1 and ZHANG Hongjie 2 1. Department of Chemistry, Zhongshan University, Guangzhou 510275, China 2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, | 1998 | Chinese Science Bulletin1998，43，6： | 1 |
| 12 | Microscopic Evidence of Destroying the Order of Magnetic Sequence in CuO_2 Chain by Zn, Ni, Co Doping in Sr_(14)Cu_(24)O_(41) Compound显示文摘The Zn2+, Ni2+and Co3+doped Sr 14 Cu 24 O 41 compounds were synthesized by standard solid state method. X-ray diffraction results show that the changes in lattice parameters are very small. Selected area electron diffraction patterns(EDPs) show that the diffraction spots corresponding to the CuO 2 chain substructure are extended to streaks along a* and b* directions for all the samples, while the diffraction spots produced merely by the Cu 2 O 3 ladder substructure are still very sharp. This means that the periodicities of chains in a* and b* directions are partially destroyed upon doping of Zn, Ni and Co due to that the initial phase of each chain becomes a random variable. The temperature dependence of magnetic properties was measured for every sample. And the number of dimers in CuO 2 chain per formula unit(f.u.) and dimer coupling constant are obtained by fitting the temperature dependence of the magnetic susceptibility. It is found that the degree of initial phase disorder is related to the order degree of magnetic sequence in CuO 2 chain. For the un-doped sample, the decoupling of dimers is weak, the magnetic sequence is slightly destroyed, and the streaks in EDP are also very weak, which implies the degree of initial phase disorder in CuO 2 chain is very low. When Zn2+and Ni2+ions are doped, the number of dimers per f.u. decreases, and the intensity of diffraction streaks increases in comparison with the corresponding spots. Furthermore, when the high spin magnetic ions Co3+are doped, the number of holes in Sr 14 Cu 24 O 41 decreases, the magnetic sequence is destroyed very seriously, and the spots in EDP are extended to streaks almost completely. The phenomenon that the diffraction spots of CuO 2 chain extend to streaks in EDP appears as evidence that the magnetic sequence in the CuO 2 chain is destroyed by doping of Zn, Ni, Co. | WANG Jun ZOU Huamin LI Yang XIE Hui HU Ni WANG Lili SHI Jing | 2013 | Journal of Wuhan University of Technology(Materials Science)2013，28，6： | 1 |
| 13 | The catalytic effect of bismuth for VO2+/VO2+and V3+/V2+redox couples in vanadium flow batteries显示文摘The effect of bismuth(Bi) for both VO_2^+/VO2+ and V^(3+)/V^(2+) redox couples in vanadium flow batteries(VFBs) has been investigated by directly introducing Bi on the surface of carbon felt(CF).The results show that Bi has no catalytic effect for VO_2^+/VO2+ redox couple.During the first charge process,Bi is oxidized to Bi^(3+)(never return back to Bi metal in the subsequent cycles) due to the low standard redox potential of 0.308 V(vs.SHE) for Bi3+/Bi redox couple compared with VO_2+/VO2+ redox couple and Bi^(3+)exhibit no(or neglectable) electro-catalytic activity.Additionally,the relationship between Bi loading and electrochemical activity for V^(3+)/V^(2+) redox couple was studied in detail.2 wt%Bi-modified carbon felt(2%-BiCF) exhibits the highest electrochemical activity.Using it as negative electrode,a high energy efficiency(EE) of 79.0%can be achieved at a high current density of 160mA/cm^2,which is 5.5%higher than the pristine one.Moreover,the electrolyte utilization ratio is also increased by more than 30%.Even the cell operated at 140mA/cm2 for over 300 cycles,the EE can reach 80.9%without obvious fluctuation and attenuation,suggesting excellent catalytic activity and electrochemical stability in VFBs. | Xiaofei Yang Tao Liu Chi Xu Hongzhang Zhang Xianfeng Li Huamin Zhang | 2017 | Journal of Energy Chemistry2017，26，1： | 1 |
| 14 | 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 |
| 15 | VISTopic:A visual analytics system for making sense of large document collections using hierarchical topic modeling显示文摘Effective analysis of large text collections remains a challenging problem given the growing volume of available text data.Recently,text mining techniques have been rapidly developed for automatically extracting key information from massive text data.Topic modeling,as one of the novel techniques that extracts a thematic structure from documents,is widely used to generate text summarization and foster an overall understanding of the corpus content.Although powerful,this technique may not be directly applicable for general analytics scenarios since the topics and topic-document relationship are often presented probabilistically in models.Moreover,information that plays an important role in knowledge discovery,for example,times and authors,is hardly reflected in topic modeling for comprehensive analysis.In this paper,we address this issue by presenting a visual analytics system,VISTopic,to help users make sense of large document collections based on topic modeling.VISTopic first extracts a set of hierarchical topics using a novel hierarchical latent tree model(HLTM)(Liu et al.,2014).In specific,a topic view accounting for the model features is designed for overall understanding and interactive exploration of the topic organization.To leverage multi-perspective information for visual analytics,VISTopic further provides an evolution view to reveal the trend of topics and a document view to show details of topical documents.Three case studies based on the dataset of IEEE VIS conference demonstrate the effectiveness of our system in gaining insights from large document collections. | Yi Yang Quanming Yao Huamin Qu | 2017 | Visual Informatics2017，1，1： | 1 |
| 16 | Physically guided liquid surface modeling from videos显示文摘 | Wang Huamin Liao Miao Zhang Qing Yang Ruigang Turk G | 2009 | ACM Transactions on Graphics (TOG)2009，28，3： | 1 |
| 17 | TIM: threat context-enhanced TTP intelligence mining on unstructured threat data显示文摘TTPs (Tactics, Techniques, and Procedures), which represent an attacker’s goals and methods, are the long period and essential feature of the attacker. Defenders can use TTP intelligence to perform the penetration test and compensate for defense deficiency. However, most TTP intelligence is described in unstructured threat data, such as APT analysis reports. Manually converting natural language TTPs descriptions to standard TTP names, such as ATT&CK TTP names and IDs, is time-consuming and requires deep expertise. In this paper, we define the TTP classification task as a sentence classification task. We annotate a new sentence-level TTP dataset with 6 categories and 6061 TTP descriptions from 10761 security analysis reports. We construct a threat context-enhanced TTP intelligence mining (TIM) framework to mine TTP intelligence from unstructured threat data. The TIM framework uses TCENet (Threat Context Enhanced Network) to find and classify TTP descriptions, which we define as three continuous sentences, from textual data. Meanwhile, we use the element features of TTP in the descriptions to enhance the TTPs classification accuracy of TCENet. The evaluation result shows that the average classification accuracy of our proposed method on the 6 TTP categories reaches 0.941. The evaluation results also show that adding TTP element features can improve our classification accuracy compared to using only text features. TCENet also achieved the best results compared to the previous document-level TTP classification works and other popular text classification methods, even in the case of few-shot training samples. Finally, the TIM framework organizes TTP descriptions and TTP elements into STIX 2.1 format as final TTP intelligence for sharing the long-period and essential attack behavior characteristics of attackers. In addition, we transform TTP intelligence into sigma detection rules for attack behavior detection. Such TTP intelligence and rules can help defenders deploy long-term effective threat detection and perform more realistic attack simulations to strengthen defense. | Yizhe You Jun Jiang Zhengwei Jiang Peian Yang Baoxu Liu Huamin Feng Xuren Wang Ning Li | 2022 | Cybersecurity2022，5，2： | 1 |
| 18 | Mechanical design of the horizontal collimator for HEPS storage ring显示文摘Background Horizontal collimators in the storage ring of high energy photon source(HEPS)are used to localize the majority of the particle loss,making it possible to set local shields.Moreover,movable jaws of the collimators are also designed as beam dumps for the machine protection,to absorb and scatter the mis-steered beam.Because of the compact lattice,each collimator should be installed between the limited space of 240 mm in the beam direction.It is necessary for the collimators to have good thermal dissipation ability to endure the synchrotron radiation and HOM load,as well as good resistance to thermal-shock from sudden beam loss simultaneously,which brings great challenges to the design.Purpose The purpose of this paper is to introduce the designing scheme of the collimators in HEPS,including the structure design and the analyses of the key components.Method Thermal and mechanical calculation has been done,based on which the jaw structure has been optimized.Besides,the modal analysis of the whole magnet-collimator-support assembly has been studied to optimize the shields structure.Result Graphite will be used as the tip for movable jaws in the collimators,which is attached to copper by vacuum brazing.The maximum temperature of the jaw during normal operation is 131°C,while maximum stress of the graphite–copper weld joint is 15.6 MPa.Graphite tip can resist thermal shock caused by whole mis-steered beam.Eigen frequency of the standard assembly is acceptable for HEPS.Conclusion The results of calculations indicate that the present structure can work well for considered operating modes. | Liuxu Zong Haijing Wang Chunhua Li Huamin Qu Lei Wu Zihao Wang Yaliang Zhao Guangyi Tang Hao Yang Na Wang Haoyu Shi | 2022 | Radiation Detection Technology and Methods2022，6，4： | 1 |
| 19 | Towards understanding the poor thermal stability of V 5+ electrolyte solution in Vanadium Redox Flow Batteries显示文摘 | M. Vijayakumar Liyu Li Gordon Graff Jun Liu Huamin Zhang Zhenguo Yang Jian Zhi Hu | 2010 | Journal of Power Sources2010，，7： | 1 |
| 20 | Optimization Model of Computerized Solution-Finding Optical System Economic Tolerance | YANG Huamin JIANG Huilin WANG Limin Changchun Institute of Optics and Fine Mechanics, Changchun 130022 | 1998 | Systems Science and Systems Engineering1998，8，3： | 0 |
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