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| 1 | Potential influence of water level changes on energy flows in a lake food web显示文摘Large seasonal water-level fluctuations may influence isotopic signatures of primary producers and the types and amounts of these potential food sources accessible to aquatic fauna of Poyang Lake,the largest freshwater lake in China.In this study,the isotopic signatures of primary producers and consumers were determined,stable carbon and nitrogen isotope analysis and mixing models were combined to investigate the influence of water levels on the diet and isotopic composition of Poyang Lake fish and invertebrates.Five potential food sources (seston,benthic organic matter,aquatic macrophytes,attached algae,and terrestrial plants),4 species of invertebrates,and 10 species of fish were collected from the lake area during dry and wet seasons between January 2009 and April 2010.The δ 13C values of invertebrates and most fish were within the range of δ 13C values of the potential food sources for both seasons.The δ 13C values of invertebrates and most fish were lower in the dry season than in the wet season,whereas the δ 15N values exhibited different patterns for different species.Mixing models indicated that the most important food sources for common lake fauna were seston in the dry season and aquatic macrophytes and terrestrial plants in the wet season.The fauna were more omnivorous in the wet season than in the dry season.The food web dynamics of Poyang Lake are strongly influenced by changes in the abundance and accessibility of different basal food sources that occur because of seasonal flood pulses.The trophic links within the aquatic communities of Poyang Lake are modified by water-level fluctuations. | WANG YuYu YU XiuBo LI WenHua XU Jun CHEN YuWei FAN Na | 2011 | Chinese Science Bulletin2011,56,26: | 11 |
| 2 | Waste oyster shell as a kind of active filler to treat the combined wastewater at an estuary显示文摘Estuaries have been described as one of the most difcult environments on Earth. It is difcult to know how to treat the combined wastewater in tidal rivers at the estuary, where the situation is very diferent from ordinary fresh water rivers. Waste oyster shell was used as the active filler in this study in a bio-contact oxidation tank to treat the combined wastewater at the Fengtang Tidal River. With a middle-experimental scale of 360 m3/day, the average removal efciency of COD, BOD, NH3-N, TP and TSS was 80.05%, 85.02%,86.59%, 50.58% and 85.32%, respectively, in this bio-contact oxidation process. The living microbes in the biofilms on the waste oyster shell in this bio-contact oxidation tank, which were mainly composed of zoogloea, protozoa and micro-metazoa species, revealed that waste oyster shell as the filler was suitable material for combined wastewater degradation. This treatment method using waste oyster shell as active filler was then applied in a mangrove demonstration area for water quality improvement near the experiment area, with a treatment volume of 5 × 103m3/day. Another project was also successfully applied in a constructed wetland, with a wastewater treatment volume of 1 × 103m3/day. This technology is therefore feasible and can easily be applied on a larger scale. | Hongbing Luo Gu Huang Xiaoying Fu Xiaoling Liu Daocai Zheng Jian Peng Ke Zhang Bo Huang Liangqian Fan Fenghui Chen Xiubo Sun | 2013 | Journal of Environmental Sciences2013,25,10: | 11 |
| 3 | A blind quantum signature protocol using the GHZ states显示文摘Recently,some blind quantum signature(BQS) protocols have been proposed.But the previous schemes have security and efficiency problems.Based on the entangled Greenberger-Horne-Zeilinger(GHZ) states,a new weak BQS protocol is proposed.Compared with some existing schemes,our protocol has 100% efficiency.Besides,the protocol is simple and easy to implement.The security of the protocol is guaranteed by the correlation of the GHZ particles held by each participant.In our protocol,the signatory is kept blind from the content of the message.According to the security analysis,the signatory cannot disavowal his/her signature while the signature cannot be forged by others. | WANG MingMing CHEN XiuBo YANG YiXian | 2013 | Science China(Physics,Mechanics & Astronomy)2013,56,9: | 10 |
| 4 | Effect of Water Level Fluctuations on Wintering Goose Abundance in Poyang Lake Wetlands of China显示文摘The Poyang Lake is a Ramsar site and is the important over-wintering site for migratory waterbirds along the East Asian–Australasian Fly way. Examining the effects of water level fluctuations on waterbird abundance and analyzing the influencing mechanism is critical to waterbird protection in the context of hydrological alteration. In this study, the effect of water level regime on wintering goose abundance was examined and the influencing mechanism was interpreted. Synchronous waterbirds survey data, hydrological data, Moderate Resolution Imaging Spectroradiometer-Normalized Difference Vegetation Index(MODIS-NDVI) data and habitat data derived from Landsat TM/ETM data and HJ/CCD data were combined. The satellite-derived Green Wave Index(GWI) based on MODIS-NDVI dataset was applied to detect changes in goose food resources. It was found that habitat size and vegetation conditions are key factors determining goose abundance. Geese numbers were positively correlated with habitat area, while intermediate range of vegetation productivity might benefit the goose abundance. Water level affects goose abundance by changing available habitat areas and vegetation conditions. We suggested that matching hydrological regime and exposed meadows time to wintering geese dynamics was crucial in the Poyang Lake wetlands. Our study could provide sound scientific information for hydrological management in the context of waterbird conservation. | XIA Shaoxia LIU Yu CHEN Bin JIA Yifei ZHANG Huan LIU Guanhua YU Xiubo | 2017 | Chinese Geographical Science2017,27,2: | 8 |
| 5 | Tuning Superhydrophobic Materials with Negative Surface Energy Domains显示文摘Hydrophobic/superhydrophobic materials with intrinsic water repellence are highly desirable in engineering fields including antiicing in aerocrafts,antidrag and anticorrosion in ships,and antifog and self-cleaning in optical lenses,screen,mirrors,and windows.However,superhydrophobic material should have small surface energy(SE)and a micro/nanosurface structure which can reduce solid-liquid contact significantly.The low SE is generally found in organic materials with inferior mechanical properties that is undesirable in engineering.Intriguingly,previous theoretical calculations have predicted a negative SE forθ-alumina(θ-Al_(2)O_(3)),which inspires us to use it as a superhydrophobic material.Here,we report the experimental evidence of the small/negative SE ofθ-Al_(2)O_(3) and aθ-Al_(2)O_(3)-based superhydrophobic coating prepared by one-step scalable plasma arcing oxidation.The superhydrophobic coating has complete ceramic and desired micro/nanostructure and therefore exhibits excellent aging resistance,wear resistance,corrosion resistance,high-temperature tolerance,and burning resistance.Owing to the rarity of the small/negative SE in inorganic materials,the concept to reduce SE byθ-Al_(2)O_(3) may foster a blowout to develop robust superhydrophobicity by complete inorganic materials. | Zhongzhen Wu Liangliang Liu Shunning Li Shunping Ji Pinghu Chen Suihan Cui Zhengyong Ma Yuchang Weng Qian Huang Zhongcan Wu Hao Wu Yuan Lin Ricky KYFu Hai Lin Xiubo Tian Paul KChu Feng Pan | 2019 | Research2019,,1: | 6 |
| 6 | High-efficiency quantum steganography based on the tensor product of Bell states显示文摘In this paper,we first propose a hidden rule among the secure message,the initial tensor product of two Bell states and the final tensor product when respectively applying local unitary transformations to the first particle of the two initial Bell states,and then present a high-efficiency quantum steganography protocol under the control of the hidden rule.In the proposed quantum steganography scheme,a hidden channel is established to transfer a secret message within any quantum secure direct communication(QSDC) scheme that is based on 2-level quantum states and unitary transformations.The secret message hiding/unhiding process is linked with the QSDC process only by unitary transformations.To accurately describe the capacity of a steganography scheme,a quantitative measure,named embedding efficiency,is introduced in this paper.The performance analysis shows that the proposed steganography scheme achieves a high efficiency as well as a good imperceptibility.Moreover,it is shown that this scheme can resist all serious attacks including the intercept-resend attack,measurement-resend attack,auxiliary particle attack and even the Denial of Service attack.To improve the efficiency of the proposed scheme,the hidden rule is extended based on the tensor product of multiple Bell states. | XU ShuJiang CHEN XiuBo NIU XinXin YANG YiXian | 2013 | Science China(Physics,Mechanics & Astronomy)2013,56,9: | 6 |
| 7 | Quantum network communication: a discrete-time quantum-walk approach显示文摘We study the problem of quantum multi-unicast communication over the butterfly network in a quantum-walk architecture, where multiple arbitrary single-qubit states are transmitted simultaneously between multiple source-sink pairs. Here, by introducing quantum walks, we demonstrate a quantum multiunicast communication scheme over the butterfly network and the inverted crown network, respectively,where the arbitrary single-qubit states can be efficiently transferred with both the probability and the state fidelity one. The presented result concerns only the butterfly network and the inverted crown network, but our techniques can be applied to a more general graph. It paves a way to combine quantum computation and quantum network communication. | Yuguang YANG Jiajie YANG Yihua ZHOU Weimin SHI Xiubo CHEN Jian LI Huijuan ZUO | 2018 | Science China(Information Sciences)2018,61,4: | 5 |
| 8 | Quantum network coding for multi-unicast problem based on 2D and 3D cluster states显示文摘We mainly consider quantum multi-unicast problem over directed acyclic network, where each source wishes to transmit an independent message to its target via bottleneck channel. Taking the advantage of global entanglement state 2D and 3D cluster states, these problems can be solved efficiently. At first, a universal scheme for the generation of resource states among distant communication nodes is provided. The corresponding between cluster and bigraph leads to a constant temporal resource cost. Furthermore, a new approach based on stabilizer formalism to analyze the solvability of several underlying quantum multi-unicast networks is presented. It is found that the solvability closely depends on the choice of stabilizer generators for a given cluster state. And then, with the designed measurement basis and parallel measurement on intermediate nodes, we propose optimal protocols for these multi-unicast sessions. Also, the analysis reveals that the resource consumption involving spatial resources, operational resources and temporal resources mostly reach the lower bounds. | Jing LI Xiubo CHEN Xingming SUN Zongpeng LI Yixian YANG | 2016 | Science China(Information Sciences)2016,59,4: | 4 |
| 9 | Quantum key distribution based on single-particle and EPR entanglement显示文摘Dear editor,The theoretical security of the quantum secure communication protocols can be proved with the law of quantum mechanics,when the classical communication protocols’security can only depend on the computational complexity[1,2].Based on the quantum BB84 protocol[3]and the quantum MEQKD protocol[4],we present a QKD(quantum key distribution)protocol based on a singleparticle and an EPR(Einstein-Podolsky-Rosen)entanglement pair,which is called the quantum TEQKD protocol. | Leilei LI Jian LI Yan CHANG Yuguang YANG Xiubo CHEN | 2020 | Science China(Information Sciences)2020,63,6: | 2 |
| 10 | Multi-party blind quantum computation protocol with mutual authentication in network显示文摘Blind quantum computation(BQC) can ensure a client with limited quantum capability safely delegates computing tasks to a remote quantum server. In order to resist attacks from ignoring identity authentication in BQC protocols, it is necessary to guarantee the legality of both clients and servers in a multi-party BQC network. So we propose a multi-party BQC protocol involving three phases to distribute shared keys and authenticate identities. Firstly, by using the advantages of measurement device independent quantum key distribution(MDI-QKD), the registered client and the assigned server could share the initial key safely in registration phase. Secondly, with the help of semi-honest certificate authority(CA), mutual identity authentication phase realizes the two-way authentication from both sides through the shared key simultaneously. Thirdly, in the blind quantum computing phase, a registered client can complete his computing task by just measuring the qubits from the assigned server rather than preparing the qubits. Moreover,combined with first-in-first-out(FIFO) principle, clients’ authentication and blind quantum computing can be processed in parallel. The protocol can also be applied in other multi-party BQC protocols with the universality of resource states. Compared with other BQC protocols, the reliability of the protocol with identity authentication is guaranteed, and the efficiency will be significantly reflected in real experiments. | Rui-Ting SHAN Xiubo CHEN Kai-Guo YUAN | 2021 | Science China(Information Sciences)2021,64,6: | 1 |
| 11 | Self-anti-angiogenesis nanoparticles enhance anti-metastatic-tumor efficacy of chemotherapeutics显示文摘Beyond traditional endothelium-dependent vessel(EDV),vascular mimicry(VM)is another critical tumor angiogenesis that further forms in many malignant metastatic tumors.However,the existing anti-angiogenesis combined chemotherapeutics strategies are only efficient for the treatment of EDV-based subcutaneous tumors,but remain a great challenge for the treatment of in situ malignant metastatic tumor associated with EDV and VM.Here,we demonstrate a self-assembled nanoparticle(VE-DDP-Pro)featuring self-anti-EDV and-VM capacity enables to significantly enhance the treatment efficacy of cisplatin(DDP)against the growth and metastasis of ovarian cancer.The VE-DDP-Pro is constructed by patching DDP loaded cRGD-folate-heparin nanoparticles(VE)onto the surface of protamine(Pro)nanoparticle.We demonstrated the self-anti-angiogenesis capacity of VE-DDP-Pro was attributed to VE,which could significantly inhibit the formation of EDV and VM by regulating signaling pathway of MMP-2/VEGF,AKT/mTOR/MMP-2/Laminin and AKT/mTOR/EMT,facilitating chemotherapeutics to effectively suppress the development and metastasis of ovarian cancer.Thus,combing with the chemotherapeutics effectiveness of DDP,the VE-DDP-Pro can significantly enhance treatment efficacy and prolong median survival of mice with metastatic ovarian cancer.We believe our self-assembled nanoparticles integrating the anti-EDV and anti-VM capacity provide a new preclinical sight to enhance the efficacy of chemotherapeutics for the treatment malignant metastasis tumor. | Jiamao Luo Xinxian Zhong Yingming Peng Chenyuan Hao Xiaomei Liang Yulu Yang Xiubo Shi Xuncai Chen Xiao Yi iaoxuan Li Jianhua Wu Jinheng Li Qian Xiao Chentian Wu b Ruojing Lu b Yao Pan Xuejiao Wang Jun-Bing Fan Yifeng Wang Ying Wang | 2022 | Bioactive Materials2022,7,7: | 1 |
| 12 | Quantum secret sharing for general access structures based on multiparticle entanglements显示文摘 | Wang Mingming Chen Xiubo Yang Yixian | 2014 | Quantum Information Processing2014,13,2: | 1 |
| 13 | Joint remote preparation of an arbitrary three-qubit state显示文摘 | Luo Mingxing Chen Xiubo Ma Songya | 2010 | Optics Communications2010,283,23: | 1 |
| 14 | Improving the efficiency of quantum hash function by dense coding of coin operators in discrete-time quantum walk显示文摘Li et al. first proposed a quantum hash function(QHF) in a quantum-walk architecture. In their scheme, two two-particle interactions, i.e., I interaction and π-phase interaction are introduced and the choice of I or π-phase interactions at each iteration depends on a message bit. In this paper, we propose an efficient QHF by dense coding of coin operators in discrete-time quantum walk. Compared with existing QHFs, our protocol has the following advantages: the efficiency of the QHF can be doubled and even more; only one particle is enough and two-particle interactions are unnecessary so that quantum resources are saved. It is a clue to apply the dense coding technique to quantum cryptographic protocols, especially to the applications with restricted quantum resources. | YuGuang Yang YuChen Zhang Gang Xu XiuBo Chen Yi-Hua Zhou WeiMin Shi | 2018 | Science China(Physics,Mechanics & Astronomy)2018,61,3: | 1 |
| 15 | Robust QKD-based private database queries based on alternative sequences of single-qubit measurements显示文摘Quantum channel noise may cause the user to obtain a wrong answer and thus misunderstand the database holder for existing QKD-based quantum private query(QPQ) protocols. In addition, an outside attacker may conceal his attack by exploiting the channel noise. We propose a new, robust QPQ protocol based on four-qubit decoherence-free(DF) states. In contrast to existing QPQ protocols against channel noise, only an alternative fixed sequence of single-qubit measurements is needed by the user(Alice) to measure the received DF states. This property makes it easy to implement the proposed protocol by exploiting current technologies. Moreover, to retain the advantage of flexible database queries, we reconstruct Alice's measurement operators so that Alice needs only conditioned sequences of single-qubit measurements. | YuGuang Yang ZhiChao Liu XiuBo Chen YiHua Zhou WeiMin Shi | 2017 | Science China(Physics,Mechanics & Astronomy)2017,60,12: | 1 |
| 16 | Directional Modulation Based on a Quantum Genetic Algorithm for a Multiple-Reflection Model显示文摘Directional modulation is one of the hot topics in data security researches.To fulfill the requirements of communication security in wireless environment with multiple paths,this study takes into account the factors of reflections and antenna radiation pattern for directional modulation.Unlike other previous works,a novel multiple-reflection model,which is more realistic and complex than simplified two-ray reflection models,is proposed based on two reflectors.Another focus is a quantum genetic algorithm applied to optimize antenna excitation in a phased directional modulation antenna array.The quantum approach has strengths in convergence speed and the globe searching ability for the complicated model with the large-size antenna array and multiple paths.From this,a phased directional modulation transmission system can be optimized as regards communication safety and improve performance based on the constraint of the pattern of the antenna array.Our work can spur applications of the quantum evolutionary algorithm in directional modulation technology,which is also studied. | Yuwei Huang Xiubo Chen Kaiguo Yuan Jianyi Zhang Biao Liu | 2020 | Computers, Materials & Continua2020,,9: | 0 |
| 17 | Relationship Between the Strengthening Effect and the Morphology of Precipitates in Al–7.4Zn–1.7Mg–2.0Cu Alloy显示文摘The morphological evolution of the precipitates in Al–7.4Zn–1.7Mg–2.0Cu(wt%) alloy was studied by highresolution transmission electron microscopy(HRTEM). Statistics reveal that the hardness of the alloy changes accordingly with the change of the average thickness–diameter ratio of precipitates. The GPII zones are mainly responsible for the first and also the highest hardness peak. They grow in diameter and keep 7-atomic-layer in thickness. Once the thickness changes, the phase transformation from GPII zone to g0 or g-precursor would occur. The resultant metastable g0 and g-precursor precipitates grow in both diameter and thickness, but much faster in the former. After the first hardness peak,the metastable g0 precipitates and g-precursor, coexisting with part of GPII zones, are counted as the main hardening precipitates. | Xiubo Yang Jizi Liu Jianghua Chen Caiyun Wan Lei Fang Ping Liu Cuilan Wu | 2014 | Acta Metallurgica Sinica(English Letters)2014,27,6: | 0 |
| 18 | Typical universal entanglers显示文摘A universal entangler is a very powerful fault-tolerant entangling device for generating quantum entanglements from any joint states. Our paper aims to address the construction of universal entanglers. We prove that universal entanglers may be obtained from random unitary gates according to the Harr measure. The success probability is close to 1 for large system spaces. This result represents the typical density of entanglement subspaces in large state spaces. It also partially solves an open problem of universal bipartite entanglers and is explained by some experiment simulations. | WANG Feng LUO MingXing CHEN XiuBo YANG YiXian WANG XiaoJun | 2014 | Science China(Physics,Mechanics & Astronomy)2014,57,10: | 0 |
| 19 | Blockchain data secure sharing protocol based on threshold Paillier algorithm显示文摘With the development of Internet technology,secure storage and secure sharing of data have become increasingly important.Traditional data sharing schemes exist a series of problems including lack of security and low efficiency.In this paper,we construct a secure and efficient data sharing scheme based on threshold Paillier algorithm and blockchain technology,which achieves secure data storage and sharing without a third-party institution.Firstly,we propose a(t,l)threshold Paillier blockchain data sharing scheme,which effectively prevents decryption failures caused by the loss of a single node’s private key.Secondly,we propose a combined on-chain and off-chain data storage scheme,we store the ciphertext on the cloud server and the ciphertext hash value on the blockchain,which not only ensures the integrity of the data but also solves the storage limitation problem on the blockchain.Finally,we use the simulation paradigm to prove the security of the scheme in the semi-honest model.The discussion results of the comparison and the analysis of performance show that the blockchain data security sharing scheme proposed in this paper has lower computational overhead and higher security than other similar schemes. | Likai Jia Xiubo Chen Luxi Liu Xiaoge Wang Ke Xiao Gang Xu | 2023 | High-Confidence Computing2023,3,4: | 0 |
| 20 | Verifiable Multi-Party Universal Blind Quantum Computing in Distributed Networks显示文摘Blind quantum computing(BQC)ensures that a classical client could delegate complex computing tasks to a remote quantum server safely.In order to detect the dishonest behavior of the participants,we present a verifiable multi-party universal BQC protocol in distributed networks.By using the stabilizer formalism,we propose an honesty check method to test the correctness of the graph states generated by the servers.The honesty of both the clients and the servers can be judged fairly with the help of the arbitrator.Moreover,a load balancer is introduced to control the possible breakdown of servers in the network.No-signaling principle ensures the unconditional security of the protocol.Through the use of universal resource states,our protocol can be applied in more multi-party verifiable universal BQC protocols.The failure management and workload balancing of the protocol also provide a promising prospect for the future BQC network. | SHAN Ruiting CHEN Xiubo XU Gang DOU Zhao LI Zongpeng MIAO Lihua YANG Yixian | 2021 | Chinese Journal of Electronics2021,30,4: | 0 |