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| 1 | Feasibility study of a large-scale tuned mass damper with eddy current damping mechanism显示文摘Tuned mass dampers(TMDs) have been widely used in recent years to mitigate structural vibration.However,the damping mechanisms employed in the TMDs are mostly based on viscous dampers,which have several well-known disadvantages,such as oil leakage and difficult adjustment of damping ratio for an operating TMD.Alternatively,eddy current damping(ECD) that does not require any contact with the main structure is a potential solution.This paper discusses the design,analysis,manufacture and testing of a large-scale horizontal TMD based on ECD.First,the theoretical model of ECD is formulated,then one large-scale horizontal TMD using ECD is constructed,and finally performance tests of the TMD are conducted.The test results show that the proposed TMD has a very low intrinsic damping ratio,while the damping ratio due to ECD is the dominant damping source,which can be as large as 15% in a proper configuration.In addition,the damping ratios estimated with the theoretical model are roughly consistent with those identified from the test results,and the source of this error is investigated.Moreover,it is demonstrated that the damping ratio in the proposed TMD can be easily adjusted by varying the air gap between permanent magnets and conductive plates.In view of practical applications,possible improvements and feasibility considerations for the proposed TMD are then discussed.It is confirmed that the proposed TMD with ECD is reliable and feasible for use in structural vibration control. | Wang Zhihao Chen Zhengqing Wang Jianhui | 2012 | Earthquake Engineering and Engineering Vibration2012，11，3： | 19 |
| 2 | Operational spectrum reconstruction of data from the Fourier transform hyperspectral imager onboard HJ-1A satellite显示文摘The HJ-1A satellite was successfully launched on September 6, 2008. The inclusion of a HyperSpectral Imager (HSI) as one of the payloads of the HJ-1A Satellite is a major milestone in the field of the remote sensing in China. It is also the first Fourier transform imaging spectrometer routinely used to acquire scientific data from a satellite orbiting Earth. This paper briefly introduces the basic imaging theories of the spatially modulated Fourier transform imaging spectrometer, and then discusses the theoretical analysis and algorithms of spectrum reconstruction. Results of the operational spectrum reconstruction for the raw data of the HJ-1A satellite Fourier transform HSI are presented. At present, the algorithms and processing flow have been used successfully in the Ground Data Processing System (GDPS) built by the China Center for Resource Satellite Data and Applications (CRESDA). | ZHAO Xiang LU Jing GONG ADu XIAO ZhengQing KANG Qian LI Qing | 2010 | Chinese Science Bulletin2010，55，17： | 10 |
| 3 | Rational Design of MOF-Based Materials for Next-Generation Rechargeable Batteries显示文摘Metal–organic framework(MOF)-based materials with high porosity,tunable compositions,diverse structures,and versatile functionalities provide great scope for next-generation rechargeable battery applications.Herein,this review summarizes recent advances in pristine MOFs,MOF composites,MOF derivatives,and MOF composite derivatives for high-performance sodium-ion batteries,potassiumion batteries,Zn-ion batteries,lithium–sulfur batteries,lithium–oxygen batteries,and Zn–air batteries in which the unique roles of MOFs as electrodes,separators,and even electrolyte are highlighted.Furthermore,through the discussion of MOFbased materials in each battery system,the key principles for controllable synthesis of diverse MOF-based materials and electrochemical performance improvement mechanisms are discussed in detail.Finally,the major challenges and perspectives of MOFs are also proposed for next-generation battery applications. | Zhengqing Ye Ying Jiang Li Li Feng Wu Renjie Chen | 2021 | Nano-Micro Letters2021，13，12： | 9 |
| 4 | SECOND PHASES OF RAPIDLY SOLIDIFIED AlFeCrZrVSi ALLOY AND THEIR THERMAL STABILITIES显示文摘SECONDPHASESOFRAPIDLYSOLIDIFIEDAlFeCrZrVSiALLOYANDTHEIRTHERMALSTABILITIESXiaoYudeLiSongruiLiWenxianZengZhihuaMaZhengqing(Depa... | Xiao Yude Li Songrui Li Wenxian Zeng Zhihua Ma Zhengqing(Department of Materials Science and Engineering,Central South University of Technology, Changsha 410083, China) | 1998 | Journal of Central South University1998，10，1： | 4 |
| 5 | Synthesis of MoX2 (X =Se or S) monolayers with high-concentration 1T'phase on 4H/fcc-Au nanorods for hydrogen evolution显示文摘Controlled synthesis of transition metal dichalcogenide (TMD) monolayers with unusual crystal phases has attracted increasing attention due to their promising applications in electrocatalysis.However,the facile and large-scale preparation of TMD monolayers with high-concentration unusual crystal phase still remains a challenge.Herein,we report the synthesis of MoX2 (X =Se or S) monolayers with high-concentration semimetallic 1T'phase by using the 4H/face-centered cubic (fcc)-Au nanorod as template to form the 4H/fcc-Au@MoX2 nanocomposite.The concentrations of 1T'phase in the prepared MoSe2 and MoS2 monolayers are up to 86% and 81%,respectively.As a proof-of-concept application,the obtained Au@MoS2 nanocomposite is used for the electrocatalytic hydrogen evolution reaction (HER) in acid medium,exhibiting excellent performance with a low overpotential of 178 mV at the current density of 10 mNcm^2,a small Tafel slope of 43.3 mV/dec,and excellent HER stability.This work paves a way for direct synthesis of TMD monolayers with high-concentration of unusual crystal phase for the electrocatalytic application. | Zhengqing Liu Xiao Zhang Yue Gong Qipeng Lu Zhicheng Zhang Hongfei Cheng Qinglang Ma Junze Chen Meiting Zhao Bo Chen Ye Chen Xue-Jun Wu Pengfei Yin Lin Gu Yaping Du Hua Zhang | 2019 | Nano Research2019，12，6： | 3 |
| 6 | Reflection and phase of left-handed metamaterials at microwave frequencies显示文摘We experimentally investigated the reflection and phase of the left-handed metamaterials (LHMs) in a rectangular waveguide for the normally incident microwave. The samples are constructed by periodically arraying the copper split ring resonators (SRRs) and wires. It is found that for the LHMs with one-layered SRRs, a reflection peak with a depth of -3.3 dB (i.e. with the reflectivity of 47%) occurs in the left-handed range. The dependence of reflection phase on the frequency is different from that of the transmission phase, and the reflection phase has an inflexion at the reflection peaks. For the LHMs with three-layered SRRs, the depth of reflection peak increases with the row number, i.e. reflection is weakened, and the reflection peak has a shift with respect to the left-handed transmission peak. It is thought that the interaction between different layers of SRRs is the reason of the shift. | ZHAOQian ZHAOXiaopeng KANGLei ZHENGQing | 2005 | Chinese Science Bulletin2005，50，5： | 3 |
| 7 | High-performance distributed feedback quantum dot lasers with laterally coupled dielectric gratings显示文摘The combination of grating-based frequency-selective optical feedback mechanisms,such as distributed feedback(DFB)or distributed Bragg reflector(DBR)structures,with quantum dot(QD)gain materials is a main approach towards ultrahigh-performance semiconductor lasers for many key novel applications,as either stand-alone sources or on-chip sources in photonic integrated circuits.However,the fabrication of conventional buried Bragg grating structures on GaAs,GaAs/Si,GaSb,and other material platforms has been met with major material regrowth difficulties.We report a novel and universal approach of introducing laterally coupled dielectric Bragg gratings to semiconductor lasers that allows highly controllable,reliable,and strong coupling between the grating and the optical mode.We implement such a grating structure in a low-loss amorphous silicon material alongside GaAs lasers with InAs/GaAs QD gain layers.The resulting DFB laser arrays emit at pre-designed 0.8 THz local area network wavelength division multiplexing frequency intervals in the 1300 nm band with record performance parameters,including sidemode suppression ratios as high as 52.7 dB,continuous-wave output power of 26.6 mW(room temperature)and 6 mW(at 55℃),and ultralow relative intensity noise(RIN)of<-165 dB/Hz(2.5-20 GHz).The devices are also capable of isolator-free operating under very high external reflection levels of up to-12.3 dB while maintaining high spectral purity and ultralow RIN qualities.These results validate the novel laterally coupled dielectric grating as a technologically superior and potentially cost-effective approach for fabricating DFB and DBR lasers free of their semiconductor material constraints,which are thus universally applicable across different material platforms and wavelength bands. | ZHUOHUI YANG ZHENGQING DING LIN LIU HANCHENG ZHONG SHENG CAO XINZHONG ZHANG SHIZHE LIN XIAOYING HUANG HUADI DENG YING YU SIYUAN YU | 2022 | Photonics Research2022，10，5： | 3 |
| 8 | Review on the corrosion-promotion activity of graphene and its inhibition显示文摘Graphene films(GFs) and graphene-reinforced nanocomposite coatings(GNCs) have received unprecedented attention for corrosion protection because graphene possesses a remarkable chemical inertness and is completely impermeable to aggressive chemicals. However, the high electric conductivity and positive potential of graphene make graphene-based metal protectors tend to exhibit an undesirable high corrosion-promotion activity(CPA), which is widely known as the phenomenon that graphene connecting with metal accelerates the corrosion of metal substrate by inducing micro-galvanic corrosion at the defect sites of GFs or GNCs in aggressive environments. Therefore, inhibiting the CPA of graphene is currently a key focus for the application of graphene in the field of corrosion protection. In this review, the mechanisms, influencing factors, and inhibition strategies of the CPA of GFs and GNCs are highlighted from the point of view of corrosion science to address the bottlenecks and challenges for future research and potential applications of graphene for corrosion protection. | Wen Sun Yanjia Yang Zhengqing Yang Lida Wang Jing Wang Dake Xu Guichang Liu | 2021 | Journal of Materials Science & Technology2021，，32： | 2 |
| 9 | Calculation method on shape finding of self-anchored suspension bridge with spatial cables显示文摘Based on the spatial model,a reliable and accurate calculation method on the shape finding of self anchored suspension bridge with spatial cables was studiedin this paper.On the principle that the shape of the main cables between hangers is catenary,the iteration method of calculating the shapes of the spatial main cables under the load of hanger forces was deduced.The reasonable position of the saddle was determined according to the shape and the theoretical joint point of the main cables.The shapes of the main cables at completed cable stage werecalculated based on the unchanging principle of the zero-stress lengths of the main cables.By using a numerical method combining with the finite element method,one self-anchored suspension bridge with spatial cables was analyzed.The zero-stress length of the main cables,the position of the saddle,and the pre-offsetting of the saddle of the self-anchored suspension bridge were given.The reasonable shapes of the main cables at bridge completion stage and completed cable stage were presented.The results show that the shape-finding calculation method is effective and reliable. | Yan HAN Zhengqing CHEN Shidong LUO Shankui YANG | 2009 | Frontiers of Structural and Civil Engineering2009，3，2： | 2 |
| 10 | All in one theranostic nanoplatform enables efficient anti-tumor peptide I delivery for triple-modal imaging guided cancer therapy显示文摘Developing a reliable system to efficiently and safely deliver peptide drugs into tumor tissues still remains a great challenge since the instability of peptide drugs and low ability to traverse the cell membrane. Herein, we constructed a multifunctional nanoplatform based on porous europium/gadolinium (Eu/Gd)-doped NaLa(MoO4)2 nanoparticles (NLM NPs) to deliver antitumor peptide of B-cell lymphoma/leukemia-2-like protein 11 (BIM) for cancer therapy. The porous NLM NPs exhibited inherent photoluminescent, magnetic and X-ray absorbable properties, which enable them for triple-modal bioimaging, including fluorescence, magnetic resonance imaging (MRI) and computed tomography (CT). This triple-modal bioimaging can contribute to monitoring NLM NPs biodistribution and guiding therapy in vitro and in vivo. Furthermore, the NLM NPs showed negligible cytotoxicity in vitro and tissue toxicity in vivo. Importantly, NLM NPs could load the antitumor peptide of BIM and efficiently improve the resistance of peptide drugs to proteolysis. The BIM peptide was efficiently delivered into the tumor cells by NLM NPs, which can inhibit the growth and promote the apoptosis of cancer cells in vitro, significantly inhibit the tumor growth in vivo. Notably, NLM-BIM theranostic nanoplatform exhibits low systemic toxicity and fewer side effects in vivo. The NLM NPs can serve as a promising multifunctional peptide delivery nanoplatform for multi-modal bioimaging and cancer therapy. | Xiaoyan Qu Zhengqing Liu Bohan Ma Na Li Hongyang Zhao Tian Yang Yumeng Xue Xiaozhi Zhang Yongping Shao Ying Chang Jun Xu Bo Lei Yaping Du | 2019 | Nano Research2019，12，3： | 2 |
| 11 | Lactobacillus plantarum CCFM8610 Alleviates Irritable Bowel Syndrome and Prevents Gut Microbiota Dysbiosis:A Randomized,Double-Blind,Placebo-Controlled,Pilot Clinical Trial显示文摘Irritable bowel syndrome with diarrhea(IBS-D)is chronic intestinal dysfunction with diarrhea and othercomplicated clinical symptoms,and it has a great impact on the daily life and mental state of patients.Some studies have reported that ingestion of probiotics can significantly alleviate a variety of intestinaldiseases.The pupose of this study was to investigate the IBS-D-alleviating effects of a probiotic strain,lactobacillus plantarum(L.plantarum)CCFM8610,with multiple health-promoting effects.The studywas a 12-week,randomized,double-blind,placebo-controlled,pilot clinical trial.Seventy-five patientswere randomly assigned to receive the placebo,oligosaccharides,or L.plantarum CCFM8610(1×10^(10) colony-forming units(CFU)per day),with a 2-week run-in period,an 8-week intervention period,anda 2-week follow-up observation period.The patients'clinical symptoms and quality of life were exam-ined by the IBS symptom severity scale(IBS-SsS)and the IlBS quality of life scale(IBS-QOL).Changes ingut microbiota composition and diversity were measured at the end of the intervention period.The oraladministration of L.plantarum CCFM8610 significantly decreased the IBS-SSS and IBS-QOL scores,reduced IBS-D symptom severity,recovered gut microbiota diversity,decreased the relative abundanceof bloating-related genus Methanobrevibacter,and increased the relative abundance of butyric acid-producing genera,including Anaerostipes,Anaerotruncus,Bifidobacterium,Butyricimonas,andOdoribacter.These findings suggest that ingestion of L.plantarum CCFM8610 can significantly alleviate clinical symptoms and gut microbiota dysbiosis in IBS-D patients.The IBS-D-alleviating effect of L.plan-tarum CCFM8610 may be related to theincrease in the relative abundance of butyric acid-producing genera in the intestine. | Yang Liu Xinjie Yu Leilei Yu Fengwei Tian Jianxin Zhao Hao Zhang Long Qian Qun Wang Zhengqing Xue Qixiao Zhai Wei Chen | 2021 | Engineering2021，7，3： | 2 |
| 12 | A pH-switched mesoporous nanoreactor for synergetic therapy显示文摘作为 pH 敏感的药搬运人的一种新类型,锌氧化物 nanoparticles (ZnO NP ) 收到了许多注意。ZnO NP 在生理的 pH 是稳定的,但是能在酸的肿瘤环境快速溶解(pH < 6 ) 产生细胞毒素的锌离子和反应的氧种类(ROS ) 。然而,蛋白质日冕通常引起 ZnO NP 的非特定的降级,它更加限制了他们的申请。此处, pH 敏感的 nanoreactor 的一种新类型(ZnO-DOX@F-mSiO 2-FA), 瞄准了减少 ZnO NP 的非特定的降级,被介绍。在酸的肿瘤环境(pH < 6 ) ,它能释放有效地杀死癌症房间的细胞毒素的锌离子, ROS,和 anticancer 药。另外,从荧光黄 isothiocyanate (FITC ) 射出的荧光标记 mesoporous 为硅石(F-mSiO 2) 和 doxorubicin (纪录影片) 能被用来监视 anticancer 药的版本行为。这份报告提供一个新方法避免 ZnO NP 的非特定的降级,导致由利用导致 NPs 的氧化应力和指向的药释放的 ZnO 的合作治疗。 | Zhengqing Yan Andong Zhao Xinping Liu Jinsong Ren Xiaogang Qu | 2017 | Nano Research2017，10，5： | 2 |
| 13 | Modified Distributed Medium Access Control Algorithm Based on Multi-Packets Reception in Ad Hoc Networks显示文摘Based on the Multi-Packet Reception(MPR) capability at the physical layer and the Distributed Coordination Function(DCF)of the IEEE 802.11 MAC protocol, we propose a modified new solution about WAITING mechanism to make full use of the MPR capability in this paper, which is named as modified distributed medium access control algorithm. We describe the details of each step of the algorithm after introducing the WAITING mechanism. Then, we also analyze how the waiting-time affects the throughput performance of the network. The network simulator NS-2 is used to evaluate the throughput performance of the new WAITING algorithm and we compare it with IEEE 802.11 MAC protocol and the old WAITING algorithm. The experimental results show that our new algorithm has the best performance. | ZHENGQing YANGZhen | 2005 | The Journal of China Universities of Posts and Telecommunications2005，12，1： | 2 |
| 14 | Watershed environmental management framework based on economic theory显示文摘Based on the meaning of economic theory as well as analysis of relevant characteristics of watershed environmental management,a watershed environmental management framework will be created,with building systems of theory,principles,methods,and supporting measures.Through the general structure,the watershed environmental management system design can be explored to optimize the allocation of resources and achieve coordinated development of watershed economic growth and environmental protection. | Baoliu Zhang Hong Luo Zhengqing Wang | 2014 | Chinese Journal of Population,Resources and Environment2014，12，4： | 2 |
| 15 | Optimal design and effectiveness evaluation for inerter-based devices on mitigating seismic responses of base isolated structures显示文摘The optimal design and effectiveness of three control systems,tuned viscous mass damper(TVMD),tuned inerter damper(TID)and tuned mass damper(TMD),on mitigating the seismic responses of base isolated structures,were systematically studied.First,the seismic responses of the base isolated structure with each control system under white noise excitation were obtained.Then,the structural parameter optimizations of the TVMD,TID and TMD were conducted by using three different objectives.The results show that the three control systems were all effective in minimizing the root mean square value of seismic responses,including the base shear of the BIS,the absolute acceleration of structural SDOF,and the relative displacement between the base isolation floor and the foundation.Finally,considering the superstructure as a structural MDOF,a series of time history analyses were performed to investigate the effectiveness and activation sensitivity of the three control systems under far field and near fault seismic excitations.The results show that the effectiveness of TID and TMD with optimized parameters on mitigating the seismic responses of base isolated structures increased as the mass ratio increases,and the effectiveness of TID was always better than TMD with the same mass ratio.The TVMD with a lower mass ratio was more efficient in reducing the seismic response than the TID and TMD.Furthermore,the TVMD,when compared with TMD and TID,had better activation sensitivity and a smaller stroke. | Li Yafeng Li Shouying Chen Zhengqing | 2021 | Earthquake Engineering and Engineering Vibration2021，20，4： | 2 |
| 16 | A carbon-rich g-C_(3)N_(4) with promoted charge separation for highly efficient photocatalytic degradation of amoxicillin显示文摘A novel carbon-rich g-C_(3)N_(4) nanosheets with large surface area was prepared by facile thermal polymerization method using urea and 1,3,5-cyclohexanetriol.Plenty of carbon-rich functional groups were introduced into the surface layers of g-C_(3)N_(4),which constructed the built-in electric field(BIEF)and resulted in improved charge separation;therefore,the carbon-rich g-C_(3)N_(4) displayed superior photocatalytic activity for amoxicillin degradation under solar light.The contaminant degradation mechanism was proposed based on radical quenching experiments,intermediates analysis and density functional theory(DFT)calculation.Moreover,the reusing experiments showed the high stability of the material,and the amoxicillin degradation under various water matrix parameters indicated its high applicability on pollutants treatment,all of which demonstrated its high engineering application potentials. | Dan Huang Xianbo Sun Yongdi Liu Haodong Ji Wen Liu Chong-Chen Wang Weiyu Ma Zhengqing Cai | 2021 | Chinese Chemical Letters2021，32，9： | 2 |
| 17 | An Efficient Pilot Scheme in Large-scale Two-way Relay Systems显示文摘 | Zheng Xiaojun Liu Erwu Zhang Zhengqing | 2015 | IEEE Transactions on Communications Letters2015，19，6： | 1 |
| 18 | Phytopathogen type Ⅲ effector weaponry and their plant targets 显示文摘 | Block A Li Guangyong Fu Zhengqing | 2008 | Current Opinion in Plant Biology2008，11，4： | 1 |
| 19 | A“Projectized”Approach to EST Translation Textbook Compilation显示文摘Setting out from the shortfalls of present EST translation textbooks,i.e.,similar structure and lacking diversity,we survey teachers and students of EST translation,and find problems regarding example choosing and lack of emphasis on CAT technology.Based on translation theory and translation talent training theory,a new“projectized”approach to compiling EST translation textbooks is put forward,which advocates that translation textbooks construct an environment with an initiator,consignor,original writer,translator,user,and receiver.The approach is expected to promote the practical value of EST translation textbooks and empower them with the ability required by the translation industry. | ZHANG Zhengqing HUAN Xiaoyu JIA Xiaoqing | 2022 | Psychology Research2022，12，9： | 1 |
| 20 | Propagation models for wireless communication systems显示文摘 | Magdy F.Iskander Zhengqing Yun | | 0，，： | 1 |
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