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| 1 | Field experiment on a robust hierarchical metropolitan quantum cryptography network显示文摘A hierarchical metropolitan quantum cryptography network upon the inner-city commercial telecom fiber cables is reported in this paper. The seven-user network contains a four-node backbone net with one node acting as the subnet gateway, a two-user subnet and a single-fiber access link, which is realized by the Faraday-Michelson interferometer set-ups. The techniques of the quantum router, optical switch and trusted relay are assembled here to guarantee the feasibility and expandability of the quantum cryptography network. Five nodes of the network are located in the government departments and the secure keys generated by the quantum key distribution network are utilized to encrypt the instant video, sound, text messages and confidential files transmitting between these bureaus. The whole implementation including the hierarchical quantum cryptographic communication network links and the corresponding application software shows a big step toward the practical user-oriented network with a high security level. | XU FangXing CHEN Wei WANG Shuang YIN ZhenQiang ZHANG Yang LIU Yun ZHOU Zheng ZHAO YiBo LI HongWei LIU Dong HAN ZhengFu GUO GuangCan | 2009 | Chinese Science Bulletin2009，54，17： | 40 |
| 2 | Feed conversion ratio,residual feed intake and cholecystokinin type A receptor gene polymorphisms are associated with feed intake and average daily gain in a Chinese local chicken population显示文摘Background: The feed conversion ratio(FCR) and residual feed intake(RFI) are common indexes in measuring feed efficiency for livestock. RFI is a feed intake adjusted for requirements for maintenance and production so these two traits are related. Similarly, FCR is related to feed intake and weight gain because it is their ratio. Cholecystokinin type A receptor(CCKAR) plays an important role in animal digestive process. We examined the interplay of these three parameters in a local Chinese chicken population.Results: The feed intake(FI) and body weights(BW) of 1,841 individuals were monitored on a daily basis from 56 to 105 d of age. There was a strong correlation between RFI and average daily feed intake(ADFI) and a negative correlation between the FCR and daily gain(r_g=-0.710). Furthermore, we identified 51 single nucleotide polymorphisms(SNPs) in the CCKAR and 4 of these resulted in amino acid mutations. The C334A mutation was specifically associated with FI and the expected feed intake(EFI)(P < 0.01) and significantly associated with the average daily gain(ADG)(P < 0.05). G1290A was significantly associated with FI and EFI(P < 0.05).Conclusion: FCR is apply to weight selecting, and RFI is more appropriate if the breeding focus is feed intake. And C334A and G1290A of the CCKAR gene can be deemed as candidate markers for feed intake and weight gain. | Zhenhua Yi Xing Li Wen Luo Zhenqiang Xu Congliang Ji Yan Zhang Qinghua Nie Dexiang Zhang Xiquan Zhang | 2018 | Journal of Animal Science and Biotechnology2018，9，4： | 7 |
| 3 | Real-time compensation of phase drift for phase-encoded quantum key distribution systems显示文摘Phase drift is an inherent problem in phase-encoded quantum key distribution(QKD) systems.The current active phase trackingand compensation solutions cannot satisfy the requirements of a system with nonlinearity in phase modulation.This paper presents a four-phase scanning method,which is based on the quantitative analysis of the quantum bit error rate(QBER) from phasedrift and the performance requirements of phase compensation.By obtaining the four interference fringes and adjusting the codingmatrix of the system,this method automatically calculates the accurate driving voltages for the phase modulator.The implementation and experimental tests show that the proposed method can compensate phase drift caused by environmental changes and thesystem's nonlinearity,and is applicable to large-scale QKD networks. | ZHANG LiJun WANG YongGang YIN ZhenQiang CHEN Wei YANG Yang ZHANG Tao HUANG DaJun WANG Shuang LI FangYi HAN ZhengFu | 2011 | Chinese Science Bulletin2011，56，22： | 6 |
| 4 | Geospatial Service Web:towards integrated cyberinfrastructure for GIScience显示文摘A geospatial cyberinfrastructure is needed to support advanced GIScience research and education activities.However,the heterogeneous and distributed nature of geospatial resources creates enormous obstacles for building a unified and interoperable geospatial cyberinfrastructure.In this paper,we propose the Geospatial Service Web(GSW)to underpin the development of a future geospatial cyberinfrastructure.The GSW excels over the traditional spatial data infrastructure by providing a highly intelligent geospatial middleware to integrate various geospatial resources through the Internet based on interoperable Web service technologies.The development of the GSW focuses on the establishment of a platform where data,information,and knowledge can be shared and exchanged in an interoperable manner.Theoretically,we describe the conceptual framework and research challenges for GSW,and then introduce our recent research toward building a GSW.A research agenda for building a GSW is also presented in the paper. | GONG Jianya WU Huayi ZHANG Tong GUI Zhipeng LI Zhenlong YOU Lan SHEN Shengyu ZHENG Jie GENG Jing QI Kunlun YANG Wenjing LI Zhenqiang YU Jingmin | 2012 | Geo-Spatial Information Science2012，15，2： | 5 |
| 5 | 4-Formyl-2-(2H-benzotriazol-2-yl)-phenol: an ESIPT chromophore显示文摘In the present work, excited state intramolecular proton transfer(ESIPT) emission properties of a new benzotriazole derivative 4-formyl-2-(2H-benzotriazol-2-yl)-phenol(C1) were studied. 4-Formyl-2-(2H-benzotriazol-2-yl)-methoxy-benzene(C2), 4-formyl-2-(2H-benzotriazol-2-yl)-phenyl acetate(C3) and 4-methyl-2-(2H-benzotriazol-2-yl)-phenol(C4) were used as the reference molecules.1H NMR chemical shift of hydroxy group in C1 was located at more down field than that of C4 or p-hydroxy-benzaldehyde(C5), respectively. C1 showed two absorption bands in the range of 260–400 nm zones in various solvents, while C2 and C3 exhibited single absorption band. The equal molar mixtures of C2/C5 or C3/C5 showed single absorption band.C2 and C3 displayed single fluorescence emission band in various solvents, while C1 exhibited dual emission bands in some strong polar solvents. Furthermore, the second emission band in these strong polar solvents showed the large Stokes shift. The results show that the second emission band of C1 was produced by ESIPT. C2 and C3 could not undergo ESIPT due to no hydroxy group. The geometry optimization calculation of enol and keto forms in the ground and excited states of C1 provided tough theoretical evidences of ESIPT. | Yao Lu Yulong Gong Huiying Ma Zhenqiang Wang Haili Li Ziping Luo Hongru Li Fang Gao | 2014 | Chinese Science Bulletin2014，59，34： | 4 |
| 6 | A polypropylene melt-blown strategy for the facile and efficient membrane separation of oil-water mixtures显示文摘Porous materials with selective wettability and permeability have significant importance in oil-water separation,but complex fabrication processes are typically required to obtain the desired structures with suitable surface chemistry.In this work,an industrial melt-blown strategy that utilized commercially available polypropylene(PP)was used for the large-scale fabrication of superhydrophobic/superoleophilic membranes with staggered fabric structures.These membranes could readily separate different oils including pump oil and crude oil from various aqueous solutions such as strongly acidic,alkaline,and saline media.In addition,the separation efficiencies of these membranes exceeded 99%,and they could remain functional even after exposure to corrosive media.We anticipate that this work will further the design of membranes and enhance their applicability in oil-water separation,and provide researchers and engineers with a more effective tool for performing challenging separations and mitigating pollution. | Zhenqiang Zhang Danfeng Yu Xiubin Xu Huayi Li Taoyan Mao Cheng Zheng Jianjia Huang Hui Yang Zihan Niu Xu Wu | 2021 | Chinese Journal of Chemical Engineering2021，34，1： | 3 |
| 7 | Peroxyacetyl nitrate observed in Beijing in August from 2005 to 2009显示文摘Measurements of peroxyacetyl nitrate(PAN) were made at a Beijing urban site each August from2005 to 2009. Over this 5-year period, the average PAN concentration for August in each year increased from 3(2005) to 11.7 μg/m3(2007); however, it decreased rapidly in 2008(4.1 μg/m3).Generally, the variation over the 5 years showed a rise in the first part of the study period,followed by a decline. We considered two categories of local and regional air masses in this study, which revealed that the PAN concentration in Beijing was affected mainly by southeastern air masses. The August PAN variation was influenced predominantly by local air masses in 2005,but by 2009 regional air masses had become more important. This study showed the level and variation of PAN in the month of August in 5 consecutive years for the first time, and proved that control measures are useful in decreasing photochemical pollution; hence, these measures are probably feasible for other megacities too. Furthermore, this method of analyzing regional and local impacts might be useful for other studies as well. | Tianyu Gao Li Han Bin Wang Guang Yang Zhenqiang Xu Limin Zeng Jianbo Zhang | 2014 | Journal of Environmental Sciences2014，26，10： | 3 |
| 8 | Optical superoscillatory waves without side lobes along a symmetric cut显示文摘Optical superoscillation refers to an intriguing phenomenon of a wave packet that can oscillate locally faster than its highest Fourier component,which potentially produces an extremely localized wave in the far field.It provides an alternative way to overcome the diffraction limit,hence improving the resolution of an optical microscopy system.However,the optical superoscillatory waves are inevitably accompanied by strong side lobes,which limits their fields of view and,hence,potential applications.Here,we report both experimentally and theoretically a new superoscillatory wave form,which not only produces significant feature size down to deep subwavelength,but also completely eliminates side lobes in a particular dimension.We demonstrate a new mechanism for achieving such a wave form based on a pair of moonlike sharp-edge apertures.The resultant superoscillatory wave exhibits Bessel-like forms,hence allowing long-distance propagation of subwavelength structures.The result facilitates the study of optical superoscillation and on a fundamental level eliminates the compromise between the superoscillatory feature size and the field of view. | Yanwen Hu Shiwang Wang Junhui Jia Shenhe Fu Hao Yin Zhen Li Zhenqiang Chen | 2021 | Advanced Photonics2021，3，4： | 3 |
| 9 | Theoretical prediction for effective properties and progressive failure of textile composites:a generalized multi-scale approach显示文摘A generalized analytical model is developed to predict progressive failure behavior of several types of textile composites,including plain weave composites,twill weave composites,two-dimensional tri-axially braided composites and warpreinforced 2.5-dimensional braided composites.In this model,the unit cell(UC)of composite is firstly identified and reconstructed into a refined lamina structure with multiple equivalent lamina elements(ELEs)based on apt geometrical approximation and assumptions.Secondly,two-way coupled stress-strain responses within the UC(macro-scale)and ELE(meso-scale)are established through a universal series-parallel model(SPM).Finally,a progressive damage model,which consists of damage initiation criteria and a stiffness evolution strategy,is employed to predict damage behavior of the ELE.The analytical results including mechanical properties and progressive failure process are validated against the existing numerical and experimental ones in literature.The validated analytical model is then used to study the effects of global fiber volume fraction,braided angle,shear failure coefficient and selected failure criteria on stiffness,strength and failure process.The present results demonstrate the efficiency and generic capability of the present analytical model for predicting the mechanical responses of a range of textile composites. | Haoyuan Dang Peng Liu Yinxiao Zhang Zhenqiang Zhao Liyong Tong Chao Zhang Yulong Li | 2021 | Acta Mechanica Sinica2021，37，8： | 3 |
| 10 | Highly efficient computation method for hazard quantification of uncontained rotor failure显示文摘Uncontained Engine Rotor Failure(UERF)can cause a catastrophic failure of an aircraft,and the quantitative assessment of the hazards related to UERF is a very important part of safety analysis.However,the procedure for hazard quantification of UERF recommended by the Federal Aviation Administration in advisory circular AC20-128A is cumbersome,as it involves building auxiliary lines and curve projections.To improve the efficiency and general applicability of the risk angle calculation,a boundary discretization method is developed that involves discretizing the geometry of the target part/structure into node points and calculating the risk angles numerically by iterating a particular algorithm over each node point.The improved efficiency and excellent accuracy for the developed algorithm was validated through a comparison with manual solutions for the hazard quantification of the engine nacelle structures of a passenger aircraft using the guidance in AC20-128A.To further demonstrate the applicability of the boundary discretization method,the proposed algorithm was used to examine the influence of the target size and the distance between the target and rotor on the hazard probability. | Zhenqiang ZHAO Peng LIU Yan LIU Chao ZHANG Yulong LI | 2020 | Chinese Journal of Aeronautics2020，33，7： | 2 |
| 11 | Superparamagnetic iron oxide nanoparticles assembled magnetic nanobubbles and their application for neural stem cells labeling显示文摘Micro/nanobubbles for use as ultrasound contrast agents have been fabricated with different shell materials.When various biomedical nanoparticles have been embedded in the shells of bubbles,the composite structures have shown promising applications in multi-modal imaging,drug/gene delivery,and biomedical sensing.In this study,we developed a new gas-liquid interface self-assembly method to prepare magnetic nanobubbles embedded with superparamagnetic iron oxide nanoparticles(SPIONs).The diameter of the generated assembled nanobubbles was 227.40±87.21 nm with a good polydispersity index(PDI)of 0.29.Under the condition of 150 compression cycles,the nanobubble concentration could reach about 6.12×10^(9)/mL.Transmission electron microscopy(TEM)and scanning electronic microscopy(SEM)demonstrated that the assembled nanobubbles had a hollow gas core with SPIONs adsorbed on the surface.Ultrasound(US)imaging and magnetic resonance imaging(MRI)experiments indicated that the assembled magnetic nanobubbles exhibited good US and MR contrast capabilities.Moreover,the assembled magnetic nanobubbles were used to label neural stem cells under ultrasound exposure.After 40 s US exposure,the magnetic nanobubbles could be delivered into cells with 2.80 pg Fe per cell,which could be observed in the intracellular endosome by TEM.Compared with common incubation methods,the ultrasound exposure method did not introduce the potential cytotoxicity of transfection reagents and the efficiency was about twice as high as the efficiency of incubation.Therefore,the assembled magnetic nanobubbles prepared through the pressure-driven gas-liquid interface assembly approach could be a potential US/MRI dual model imaging nanocarrier for regenerative applications. | Jing Li Zhenqiang Feng Ning Gu Fang Yang | 2021 | Journal of Materials Science & Technology2021，，4： | 2 |
| 12 | Dye-sensitized solar cells based on anatase TiO 2 /multi-walled carbon nanotubes composite nanofibers photoanode显示文摘 | Pingfan Du Lixin Song Jie Xiong Ni Li Lijun Wang Zhenqiang Xi Naiyan Wang Linhui Gao Hongliang Zhu | 2013 | Electrochimica Acta2013，，： | 1 |
| 13 | Preliminary Design for a China ITER Test Blanket Module显示文摘 | FENG Kaiming PAN Chuanhong ZHANG Guoshu LUO Deli ZHOU Zhiwei YANG Yongwei WANG Xiaoyu HU Gang YUAN Tao CHEN Zhi WANG Heyi LI Zhenqiang ZHAO Zhou ZHENG Guoyao | 2006 | Southwestern Institute of Physics Annual Report2006，，1： | 1 |
| 14 | Early diagnosis of novel SFTS bunyavirus infection by quantitative real-time RT-PCR assay显示文摘 | Yulan Sun Mifang Liang Jing Qu Cong Jin QuanFu Zhang Jiandong Li Xiaolin Jiang Qin Wang Jing Lu Wen Gu Shuo Zhang Chuan Li XianJun Wang Faxian Zhan Wenqing Yao Zhenqiang Bi Shiwen Wang Dexin Li | 2011 | Journal of Clinical Virology2011，，1： | 1 |
| 15 | The crack propagating behavior of composite coatings prepared by PEO on aluminized steel during in situ tensile processing显示文摘 | Zhitong Chen Guang Li Zhenqiang Wu Yuan Xia | 2010 | Materials Science & Engineering A2010，，3： | 1 |
| 16 | Semi-Device-Independent Random-Number Expansion Without Entanglement显示文摘 | LI Hongwei YIN Zhenqiang WU Yuchun | 2010 | Physical Review A2010，84，3： | 1 |
| 17 | Effect of crystallization temperature and propylene sequence length on the crystalline structure of propylene-ethylene random copolymers显示文摘Crystallization behavior and resultant crystalline structure of a series of temperature-rising elu-tion-fractionated specimen of a Ziegler-Natta catalyst-synthesized propylene-ethylene random co-polymer were studied by DSC, WAXD and AFM. The experimental results indicate that both crystalliza-tion temperature and propylene sequence length exhibit great influence on the crystallization behavior and crystalline structure of the copolymer. It was found that the ethylene co-monomers acting as point defects inserted into the polypropylene chains play an important role in the formation of γ-iPP. As the co-monomer content increases, the crystallizable sequence length of iPP decreases, which produces an appropriate condition for its γ crystallization. At the same time, the existence of chain defects leads to a lower crystallinity of the copolymer and imperfection of the resultant crystals. For each individual sample with certain propylene sequence length or ethylene content, the increment of γ-iPP crystal content with increasing crystallization temperature demonstrates that higher crystallization tempera-ture is in favor of the γ-iPP crystallization. Pure γ-iPP crystals have been got in samples with propylene sequence length lower than 21 under suitable crystallization conditions. | GOU QingQiang LI HuiHui YU ZhenQiang CHEN ErQiang ZHANG YuDong YAN ShouKe | 2008 | Chinese Science Bulletin2008，53，12： | 1 |
| 18 | Strain-induced precipitation in a Ti micro-alloyed HSLA steel显示文摘 | Zhenqiang Wang Xinping Mao Zhigang Yang Xinjun Sun Qilong Yong Zhaodong Li Yuqing Weng | 2011 | Materials Science & Engineering A2011，，： | 1 |
| 19 | Finite Element Analysis on Stresses Field of Normalized Layer Thickness Within Ceramic Coating on Aluminized Steel 显示文摘 | Wu Zhenqiang Xia Yuan Li Guang | 2007 | Trans Nonferrous Met SOC China2007，17，： | 1 |
| 20 | A Cooperation-planning Model Based on Bilevel Programming Decision显示文摘This paper is based on a resource constrained active network project;the constraint of the local resource and the time constraint of the cooperation resource are considered simultaneously.And the respective benefit of the manager and cooperation partners is also considered simultaneously.And a cooperation planning model based on bilevel multi-objective programming is de- signed,according to the due time and total cost.And an extended CNP based on the permitted range for resource and time requests is presented.A larger task set in scheduling cycle is on the permitting for the request of cooperation resource and time while the task manager itself may be permitted biding for tasks.As a result,the optimization space for the cooperation planning is enlarged.So not every bidding task is successfully bid by invitee,and the task manager itself takes on some bidding tasks.Finally,the genetic algorithm is given and the validity and feasibility of the model is proved by a case. | ZHANG Jianfeng ZHOU Lei BAO Zhenqiang BIAN Wenyu LI Xiangqing Information Engineering College,Yangzhou University,Yangzhou 225009,China, | 2006 | 武汉理工大学学报2006，28，S3： | 1 |
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