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| 1 | Polysaccharides from Angelica sinensis alleviate neuronal cell injury caused by oxidative stress显示文摘Angelica sinensis has antioxidative and neuroprotective effects. In the present study, we aimed to determine the neuroprotective effect of polysaccharides isolated from Angelica sinensis. In a preliminary experiment, Angelica sinensis polysaccharides not only protected PC12 neuronal cells from H 2 O 2-induced cytotoxicity, but also reduced apoptosis and intracellular reactive oxygen species levels, and increased the mitochondrial membrane potential induced by H 2 O 2 treatment. In a rat model of local cerebral ischemia, we further demonstrated that Angelica sinensis polysaccharides enhanced the antioxidant activity in cerebral cortical neurons, increased the number of microvessels, and improved blood flow after ischemia. Our findings highlight the protective role of polysaccharides isolated from Angelica sinensis against nerve cell injury and impairment caused by oxidative stress. | Tao Lei Haifeng Li Zhen Fang Junbin Lin Shanshan Wang Lingyun Xiao Fan Yang Xin Liu Junjian Zhang Zebo Huang Weijing Liao | 2014 | Neural Regeneration Research2014，9，3： | 17 |
| 2 | An Improved Polar Codes-Based Key Reconciliation for Practical Quantum Key Distribution显示文摘Key reconciliation is important for practical Quantum key distribution(QKD) systems since it corrects the error bits in a key string by sacrificing some key bits. Therefore, its performance directly affects the secret key rate of a practical QKD system. Although key reconciliation scheme based on polar codes can achieve a high coding efficiency, the high frame error rate causes discarding key strings and decreases the secret key rate. In this paper, we fist analyze the limitation of successive cancellation decoding of polar codes, and then we propose an improved key reconciliation scheme using polar codes with successive cancellation list decoding and optimized coding structures, which can decrease the frame error probability, resulting in a higher secret key rate. Numerical results show that the proposed scheme can achieve a 12.8% higher secret key rate than the previous polar codes-based scheme with a code length of 216 bits and a quantum bit error rate of 2%. Besides, the proposed scheme is robust and it can extract secret key bits even when the quantum bit error rate reaches 10.2% with a code length of 2^(20) bits and a coding efficiency of 90.6%. | YAN Shiling WANG Jindong FANG Junbin JIANG Lin WANG Xuan | 2018 | Chinese Journal of Electronics2018，27，2： | 2 |
| 3 | Checking key integrity efficiently for high-speed quantum key distribution using combinatorial group testing显示文摘 | Junbin Fang Zoe Lin Jiang S.M. Yiu Lucas C.K. Hui | 2010 | Optics Communications2010，，1： | 1 |
| 4 | UnionPay Payment Scheme Based on Controlled Quantum Teleportation显示文摘We propose a UnionPay payment scheme based on controlled quantum teleportation in which the whole process is realized through correlation of the three-particle entangled state,controlled quantum teleportation,and the physical property of quantum mechanics.Combined with some typical quantum key distribution protocols,the proposed UnionPay payment scheme with unconditional security(information theory security)overcomes the limitation of computational security generally existing in traditional UnionPay payment systems. | WEN Xiaojun CHEN Yongzhi YI Zhengzhong JIANG LZoe FANG Junbin | 2020 | Chinese Journal of Electronics2020，29，3： | 1 |
| 5 | Purification and characterization of acetylcholinesterase from brain tissues of Oreochromis aurea and its application in environmental pesticide monitoring显示文摘Acetylcholinesterase(AChE)plays an important role in enzyme-based detection of pesticides in the environment.In this paper,AChE from the Triton X-100 extract of brain tissues of Oreochromis aurea was purified by(NH4)2SO4 fractional precipitation,Sephadex G-100 gel filtration,and DEAE-cellulose ion exchange chromatography.Certain biochemical characterizations of the purified enzyme and inhibition of pesticides on the enzyme were also studied.The specific activity of this purified enzyme was 20.628 U/mg protein,fold of purification was 139,and recovery was 22.1%.The optimal temperature of this enzyme was between 35-40℃,and optimal pH was between 7.5-8.0.The Michaelis constant(Km)for acetylthiocholine iodide was 0.183 mmol/L.The enzyme activity was inhibited by excess substrate,and optimal substrate concentration was 6 mmol/L.Four pesticides(di-chlorvos,phoxim,triazophos,and methomyl)exhibited strong inhibitions on this enzyme with IC50 less than 5 μg/mL.This study suggests that Oreochromis aurea(tilapia)could be a good enzyme source for pesticide monitoring in water environments. | YunHua Ding XiaoMin Wu JunBin Fang | 2011 | Research in Cold and Arid Regions2011，3，4： | 1 |
| 6 | Research Progress in Laboratory of RIB Physics in 2019显示文摘The progress of research going on in Laboratory of Rare Isotope Beam Physics(RIB),Nuclear Physics Research Center,in 2019 is in the following three aspects. | Sun Zhiyu Yang Yanyun Zhang Xueheng Yu Yuhong Wang Shitao Tang Shuwen Hu Jun Hou Suqin Xu Shiwei Yan Duo Fang Fang Zhang Yongjie Bai Zhen Ma Junbin Ma Shaobo | 2019 | IMP & HIRFL Annual Report2019，，1： | 0 |
| 7 | Server-Aided Multi-Secret Sharing Scheme for Weak Computational Devices显示文摘In the setting of(t,n)threshold secret sharing,at least t parties can reconstruct the secret,and fewer than t parties learn nothing about the secret.However,to achieve fairness,the existing secret sharing schemes either assume a trusted party exists or require running multi-round,which is not practical in a real application.In addition,the cost of verification grows dramatically with the number of participants and the communication complexity is O(t),if there is not a trusted combiner in the reconstruction phase.In this work,we propose a fair server-aided multi-secret sharing scheme for weak computational devices.The malicious behavior of clients or server providers in the scheme can be verified,and the server provider learns nothing about the secret shadows and the secrets.Unlike other secret sharing schemes,our scheme does not require interaction among users and can work in asynchronous mode,which is suitable for mobile networks or cloud computing environments since weak computational mobile devices are not always online.Moreover,in the scheme,the secret shadow is reusable,and expensive computation such as reconstruction computation and homomorphic verification computation can be outsourced to the server provider,and the users only require a small amount of computation. | En Zhang Xintao Duan Siuming Yiu Junbin Fang Zoe L.Jiang Tsz HonYuen Jie Peng | 2018 | Computers, Materials & Continua2018，，9： | 0 |
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