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| 1 | Passive source range estimation with a single receiver in shallow water显示文摘An approach for long-range passive impulsive source ranging with a single receiver in shallow water is proposed,which utilizes the frequency spectrum of the warped signal autocorrelation function via warping transform.For an ideal waveguide,there are invariable frequency features both in the frequency spectrum of the warped signal corresponding to modal cut-off frequencies and the warped signal autocorrelation function due to modal interference.These intrinsic frequency features can be used to passive source ranging.So,the approximate relationship between the frequency of warped signal at an unknown source range and the intrinsic frequency extracted by the time warping transform is derived.These rules can be generalized to an actual shallow water waveguide.Employing an acoustic model to offer the invariable frequency spectrum features,the impulsive signal data collected by a single hydrophone in the North Yellow Sea in December 2011 are analyzed to verify the proposed source ranging approach.The estimated ranges are in good agreement with the ranges measured by GPS,and the mean relative error of range estimation is less than 10%. | QI Yubo ZHOU Shihong REN Yun WANG Dejun LIU Jianjun FENG Xiqiang | 2015 | Chinese Journal of Acoustics2015，34，1： | 13 |
| 2 | A Trusted Attestation Mechanism for the Sensing Nodes of Internet of Things Based on Dynamic Trusted Measurement显示文摘Internet of things has been widely applied to industrial control, smart city and environmental protection, in these application scenarios, sensing node needs to make real-time response to the feedback control of the application layer. Therefore, it is necessary to monitor whether or not awareness nodes are trusted in real time, but the existing mechanisms for trusted certification lack the real-time measurement and tracking of the sensing node. To solve the above problems,this paper proposes a dynamic metric based authentication mechanism for sensing nodes of Internet of things. Firstly, the dynamic trustworthiness measure of the sensing nodes is carried out by introducing the computational function such as the trust function, the trustworthiness risk assessment function, the feedback control function and the active function of the sensing node. The dynamic trustworthiness measure of sensing nodes from multiple dimensions can effectively describe the change of trusted value of sensing nodes. Then, on the basis of this, a trusted attestation based on node trusted measure is realized by using the revocable group signature mechanism of local verifier. The mechanism has anonymity, unforgeability and traceability, which is proved the security in the standard model. Simulationexperiments show that the proposed trusted attestation mechanism is flexible, practical and efficient and has better attack resistance. It can effectively guarantee the reliable data transmission of nodes and realize the dynamic tracking of node reliability, which has a lower impact on system performance. | Bei Gong Yubo Wang Xiangang Liu Fazhi Qi Zhihui Sun | 2018 | China Communications2018，15，2： | 10 |
| 3 | Frequency invariability of acoustic field and passive source range estimation in shallow water显示文摘The frequency invariability of the warped modal signal and the warped signal autocorrelation function in shallow water is discussed.A method is proposed for passive source-range estimation based on the frequency invariability and warping transform of signal autocorrelation function received by a single hydrophone in a range-independent or weak range-dependent shallow water environment.In the method,a guided source with a known range is employed to provide the crucial and relative invariant scaled features.The experimental data in shallow water with an iso-speed profile and a fluctuated thermocline are used to verify this approach.The relative errors of the source range estimation are basically less than 10%. | ZHOU ShiHong QI YuBo REN Yun | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，2： | 8 |
| 4 | Time Domain Calculation of Connector Loads of a Very Large Floating Structure显示文摘在飞机坠毁,轮船碰撞,和另外的事故以后产生的负担可以破坏很大的漂浮的结构(VLFS ) 并且创造另外的接头负担。在这研究,负担被考虑建立的轮船碰撞和波浪的联合效果打手势为多身体 VLFS 的微分方程。一个时间领域计算方法被建议在波浪计算 VLFS 的接头负担。LonguetHiggins 模特儿被雇用模仿随机的波浪负担。液体力量和水动力学系数用 DNV Sesam 软件被获得。运动当频率域水动力学系数被变换成运动的存储器函数时,微分方程被使用时间域方法计算时间域的微分方程。由于波浪和影响负担的联合行动,高周波的摆动在接头负担的时间历史曲线被观察。在 0 的波浪方向? | Jiayang Gu Jie Wu Enrong Qi Yifeng Guan Yubo Yuan | 2015 | Journal of Marine Science and Application2015，14，2： | 3 |
| 5 | The Role of Marketing in Social Media: How Online Consumer Reviews Evolve显示文摘 | Yubo Chen Scott Fay Qi Wang | 2011 | Journal of Interactive Marketing2011，，2： | 1 |
| 6 | The Role of Marketing in So- cial Media : How Online Consumer Reviews Evolve 显示文摘 | Chen Yubo Scott Fay Qi Wang | 2011 | Journal of Interactive Marketing2011，25，2： | 1 |
| 7 | Block copolymer electrolyte with adjustable functional units for solid polymer lithium metal battery显示文摘Solid polymer electrolytes have been considered as the promising candidates to improve the safety and stability of high-energy lithium metal batteries.However,the practical applications of solid polymer electrolytes are still limited by the low ionic conductivity,poor interfacial contact with electrodes,narrow electrochemical window and weak mechanical strength.Here,a series of novel block copolymer electrolytes with three-dimensional networks are designed by cross-linked copolymerization of the polyethylene glycol soft segments and hexamethylene diisocyanate trimer hard segments.Their ionic migration performances and interface compatibilities with Li metal anode have been optimized delicately by tailoring the ratio of these functional units.The optimized block copolymer electrolyte has shown an amorphous crystalline structure,a high ionic conductivity of ~5.7×10^(-4)S cm^(-1),high lithium ion transference number(~0.49),wide electrochemical window up to ~4.65 V(vs.Li+/Li) and favorable mechanical strength at 55℃.Furthermore,the enhanced interface compatibility can well support the normal operations of lithium metal batteries using both LiFePO4 and LiNi0.8Co0.15Al0.05O2 cathodes.This study not only paves a new way to develop solid polymer electrolyte with optimizing functional units,but also provides a polymer electrolyte design strategy for the application demand of lithium metal battery. | Zhiyuan Lin Xianwei Guo Yubo Yang Mingxue Tang Qi Wei Haijun Yu | 2021 | Journal of Energy Chemistry2021，30，1： | 1 |
| 8 | Online social interactions: a natural experiment on word of mouth versus observational learning 显示文摘 | Chen Yubo Wang Qi Xie Jinhong | 2011 | Journal of Marketing Research2011，48，2： | 1 |
| 9 | Characteristics ofecological stabilized sewage sludge ( I ) 显示文摘 | CUI Yubo QI Zhixi GUO Zhiqian | 2009 | Journal of ResidualsScience & Technology2009，6，3： | 1 |
| 10 | The Role of Marketing in Social Media: How Online Consumer Reviews Evolve显示文摘 | Yubo Chen Scott Fay Qi Wang | 2011 | Journal of Interactive Marketing2011，，2： | 1 |
| 11 | Marketing implications of online consumer product reviews 显示文摘 | Chen Yubo FAY S Wang Qi | 2003 | Information Technology and Management2003，9，3： | 1 |
| 12 | The Role of Marketing in Social Media: How Online Consumer Reviews Evolve显示文摘 | Yubo Chen Scott Fay Qi Wang | 2011 | Journal of Interactive Marketing2011，25，2： | 1 |
| 13 | Survival in Markets with Network Effects: Product Compatibility and Order-of-Entry Effects显示文摘 | Qi Wang Yubo Chen Jinhong Xie | 2010 | Journey of Marking2010，，74： | 1 |
| 14 | Online Social Interactions: A Natural Experiment on Word of Mouth Versus Observational Learning 显示文摘 | CHEN Yubo WANG Qi XIE Jinhong | 2011 | Journal of Marketing Research2011，48，2： | 1 |
| 15 | Online social interactions: A natural experiment on word of mouth versus observational learning 显示文摘 | Chen Yubo Wang Qi Xie Jinhong | 2011 | Journal of Marketing Research2011，48，2： | 1 |
| 16 | Online Social Interactions:ANatural Experiment on Word of Mouth versus Observational Learning显示文摘 | Yubo Chen Qi Wang Jinhong Xie | 2011 | forthcoming at Journal of Marketing Research2011，，： | 1 |
| 17 | Online Social Interactions: A Natural Experiment on Word ofMouth versus Observational Learning 显示文摘 | Yubo Chen Qi Wang Jinhong Xie | 2010 | Jour- nal of Marketing Research Article Postprint2010，，： | 1 |
| 18 | Online Social Interactions: A Natural Experiment on Word of Mouth Versus Observational Leaming显示文摘 | Chen Yubo Wang Qi Xie Jinhong | 2011 | Journal of Marketing Research2011，，4： | 1 |
| 19 | Blockchain-Based Light-Weighted Provable Data Possession for Low Performance Devices显示文摘Provable Data Possession(PDP)schemes have long been proposed to solve problem of how to check the integrity of data stored in cloud service without downloading.However,with the emerging of network consisting of low performance devices such as Internet of Things,we find that there are still two obstacles for applying PDP schemes.The first one is the heavy computation overhead in generating tags for data blocks,which is essential for setting up any PDP scheme.The other one is how to resist collusion attacks from third party auditors with any possible entities participating the auditing.In this paper,we propose a novel blockchain-based light-weighted PDP scheme for low performance devices,with an instance deployed on a cloud server.We design a secure outsourced tag generating method for low performance devices,which enables a kind of“hash-sign-switch”two-phase tag computing.With this method,users with low performance devices can employ third party auditors to compute modular exponential operations that accounts for the largest portion of computation overhead in tag generation,without leaking their data content.Chaincodes in blockchain network ensure the correctness of such outsourcing and prevent collusion attacks.The security analysis and performance evaluation prove that our scheme is both secure and efficient. | Yining Qi Zhen Yang Yubo Luo Yongfeng Huang Xing Li | 2022 | Computers, Materials & Continua2022，，11： | 0 |
| 20 | The development and benefits of metformin in various diseases显示文摘Metformin has been used for the treatment of type II diabetes mellitus for decades due to its safety,low cost,and outstanding hypoglycemic effect clinically.The mechanisms underlying these benefits are complex and still not fully understood.Inhibition of mitochondrial respiratory-chain complex I is the most described downstream mechanism of metformin,leading to reduced ATP production and activation of AMP-activated protein kinase(AMPK).Meanwhile,many novel targets of metformin have been gradually discovered.In recent years,multiple pre-clinical and clinical studies are committed to extend the indications of metformin in addition to diabetes.Herein,we summarized the benefits of metformin in four types of diseases,including metabolic associated diseases,cancer,aging and age-related diseases,neurological disorders.We comprehensively discussed the pharmacokinetic properties and the mechanisms of action,treatment strategies,the clinical application,the potential risk of metformin in various diseases.This review provides a brief summary of the benefits and concerns of metformin,aiming to interest scientists to consider and explore the common and specific mechanisms and guiding for the further research.Although there have been countless studies of metformin,longitudinal research in each field is still much warranted. | Ying Dong Yingbei Qi Haowen Jiang Tian Mi Yunkai Zhang Chang Peng Wanchen Li Yongmei Zhang Yubo Zhou Yi Zang Jia Li | 2023 | Frontiers of Medicine2023，17，3： | 0 |
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