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| 1 | Mobile Web Augmented Reality in 5G and Beyond:Challenges, Opportunities, and Future Directions显示文摘The popularity of wearable devices and smartphones has fueled the development of Mobile Augmented Reality(MAR),which provides immersive experiences over the real world using techniques,such as computer vision and deep learning.However,the hardware-specific MAR is costly and heavy,and the App-based MAR requires an additional download and installation and it also lacks cross-platform ability.These limitations hamper the pervasive promotion of MAR.This paper argues that mobile Web AR(MWAR)holds the potential to become a practical and pervasive solution that can effectively scale to millions of end-users because MWAR can be developed as a lightweight,cross-platform,and low-cost solution for end-to-end delivery of MAR.The main challenges for making MWAR a reality lie in the low efficiency for dense computing in Web browsers,a large delay for real-time interactions over mobile networks,and the lack of standardization.The good news is that the newly emerging 5G and Beyond 5G(B5G)cellular networks can mitigate these issues to some extent via techniques such as network slicing,device-to-device communication,and mobile edge computing.In this paper,we first give an overview of the challenges and opportunities of MWAR in the 5G era.Then we describe our design and development of a generic service-oriented framework(called MWAR5)to provide a scalable,flexible,and easy to deploy MWAR solution.We evaluate the performance of our MWAR5 system in an actually deployed 5G trial network under the collaborative configurations,which shows encouraging results.Moreover,we also share the experiences and insights from our development and deployment,including some exciting future directions of MWAR over 5G and B5G networks. | Xiuquan Qiao Pei Ren Guoshun Nan Ling Liu Schahram Dustdar Junliang Chen | 2019 | China Communications2019，16，9： | 7 |
| 2 | Multistring analysis of wellhead movement and uncemented casing strength in offshore oil and gas wells显示文摘This paper presents a theoretical method and a finite element method to describe wellhead movement and uncemented casing strength in offshore oil and gas wells. Parameters considered in the theoretical method include operating load during drilling and completion and the temperature field, pressure field and the end effect of pressure during gas production. The finite element method for multistring analysis is developed to simulate random contact between casings. The relevant finite element analysis scheme is also presented according to the actual procedures of drilling, completion and gas production. Finally, field cases are presented and analyzed using the proposed methods. These are four offshore wells in the South China Sea. The calculated wellhead growths during gas production are compared with measured values. The results show that the wellhead subsides during drilling and completion and grows up during gas production. The theoretical and finite element solutions for wellhead growth are in good agreement with measured values and the deviations of calculation are within 10%. The maximum von Mises stress on the uncemented intermediate casing occurs during the running of the oil tube. The maximum von Mises stress on the uncemented production casing, calculated with the theoretical method occurs at removing the blow-out-preventer(BOP) while that calculated with the finite element method occurs at gas production. Finite element solutions for von Mises stress are recommended and the uncemented casings of four wells satisfy strength requirements. | Liu Xiuquan Chen Guoming Chang Yuanjiang Zhang Lei Zhang Weiguo Xie Hua | 2014 | Petroleum Science2014，11，1： | 7 |
| 3 | Force tracking impedance control with unknown environment via an iterative learning algorithm显示文摘Dear editor,Force tracking control is important for constrained operations. In recent years, impedance control is garnering increasing attention in robot force control. A new two-phase impedance function through null stiffness in an original impedance equation to satisfy zero-force tracking error for any environment was presented in (1, 2)Further improvement was performed in (3)。 | Xiuquan LIANG Huan ZHAO Xiangfei LI Han DING | 2019 | Science China(Information Sciences)2019，62，5： | 6 |
| 4 | Advances in catalytic conversion of lignocellulose to chemicals and liquid fuels显示文摘In response to the awareness of limited fossil resources and environmental concerns,catalytic conversion of renewable lignocellulose biomass to value-added chemicals and fuels is of great significance and attractive for sustainable chemistry.Division of Biomass Conversion and Bio-Energy attached to Dalian National Laboratory for Clean Energy has devoted themselves to valorization of lignocellulose biomass since launched in 2011.Our research interests focus on breeding of biomass resources(inulin and microalgae),exploration of catalytic and biological technologies,and production of energy chemicals and fuels.Although lignocellulose biomass is renewable and abundant,the way of utilization should be reasonable according to its structural characteristics in view of efficiency and economy.In this review,to celebrate the DICP's 70 th anniversary,we will highlight the major fundamental advances in DICP about the conversion of lignocellulose to value-added chemicals and liquid fuels.Particular attention will be paid to the transformation of cellulose and its derivatives to glycols,acids and nitrogen-containing chemicals,hemicellulose-derived platform molecule furfural to jet fuels and lignin to aromatics using catalytic technologies. | Jiping Ma Song Shi Xiuquan Jia Fei Xia Hong Ma Jin Gao Jie Xu | 2019 | Journal of Energy Chemistry2019，28，9： | 6 |
| 5 | Direct conversion of fructose-based carbohydrates to 5-ethoxymethylfurfural catalyzed by AlCl_3·6H_2O/BF_3·(Et)_2O in ethanol显示文摘Direct conversion of fructose-based carbohydrates to 5-ethoxymethylfurfural (EMF) catalyzed by Lewis acid in ethanol was investigated. It was found that BF3(Et)2O was favorable for 5-hydroxymethylfurfural (HMF) etherification to EMF. BF3(Et)2O combination with AlCl3 6H2O with the molar ratio of 1 was an effective catalyst system for synthesis of EMF from fructose-based carbohydrates. 55.0%, 45.4% and 23.9% of EMF yields were obtained from fructose, inulin and sucrose under optimized conditions, respectively. | Xiuquan Jia Jiping Ma Penghua Che Fang Lu Hong Miao Jin Gao Jie Xu | 2013 | Journal of Energy Chemistry2013，22，1： | 5 |
| 6 | Design and Implementation of an Adaptive Feedback Queue Algorithm over Open Flow Networks显示文摘The concurrent presence of different types of traffic in multimedia applications might aggravate a burden on the underlying data network, which is bound to affect the transmission quality of the specified traffic. Recently, several proposals for fulfilling the quality of service(QoS) guarantees have been presented. However, they can only support coarse-grained QoS with no guarantee of throughput, jitter, delay or loss rate for different applications. To address these more challenging problems, an adaptive scheduling algorithm for Parallel data Processing with Multiple Feedback(PPMF) queues based on software defined networks(SDN) is proposed in this paper, which can guarantee the quality of service of high priority traffic in multimedia applications. PPMF combines the queue bandwidth feedback mechanism to realise the automatic adjustment of the queue bandwidth according to the priority of the packet and network conditions, which can effectively solve the problem of network congestion that has been experienced by some queues for a long time. Experimental results show PPMF significantly outperforms other existing scheduling approaches in achieving 35--80% improvement on average time delay by adjusting the bandwidth adaptively, thus ensuring the transmission quality of the specified traffic and avoiding effectively network congestion. | Jiawei Wu Xiuquan Qiao Junliang Chen | 2018 | China Communications2018，15，7： | 5 |
| 7 | Experimental study on nucleation process of stick-slip instability on homogeneous and non-homogeneous faults显示文摘The nucleation process of stick-slip instability was analyzed based on the experimental measurements of strain and fault slip on homogeneous and non-homogeneous faults. The results show that the nucleation process of stick-slip on the homogeneous fault is of weak slip-weakening behavior under constant loading point velocity. The existence of a short 'weak segment' on the fault makes slip-weakening phenomenon in nucleation process more obvious, while the existence of a long 'weak segment' on the fault makes the nucleation process changed. The nucleation is characterized by accelerating slip in a local region and rapid increase of shear stress along the fault in this case, which is more coincident with the rate and state friction law. During the period when fault is locked, increasing of shear stress causes lateral elastic dilation near the fault, and the rebound of the dilation at the time of instability causes an instantaneous increase of normal stress in the fault plane, which is an important factor making fault be rapidly locked and its strength recovered. | MA Shengli (马胜利) LIU Liqiang (刘力强) MA Jin (马 瑾) WANG Kaiying (王凯英) HU Xiaoyan (扈小燕) LIU Tianchang (刘天昌) WU Xiuquan (吴秀泉) | 2003 | Science China Earth Sciences2003，46，z2： | 4 |
| 8 | Recommending Friends Instantly in Location-based Mobile Social Networks显示文摘Differently from the general online social network(OSN),locationbased mobile social network(LMSN),which seamlessly integrates mobile computing and social computing technologies,has unique characteristics of temporal,spatial and social correlation.Recommending friends instantly based on current location of users in the real world has become increasingly popular in LMSN.However,the existing friend recommendation methods based on topological structures of a social network or non-topological information such as similar user profiles cannot well address the instant making friends in the real world.In this article,we analyze users' check-in behavior in a real LMSN site named Gowalla.According to this analysis,we present an approach of recommending friends instantly for LMSN users by considering the real-time physical location proximity,offline behavior similarity and friendship network information in the virtual community simultaneously.This approach effectively bridges the gap between the offline behavior of users in the real world and online friendship network information in the virtual community.Finally,we use the real user check-in dataset of Gowalla to verify the effectiveness of our approach. | QIAO Xiuquan SU Jianchong ZHANG Jinsong XU Wangli WU Budan XUE Sida CHEN Junliang | 2014 | China Communications2014，11，2： | 4 |
| 9 | HIF-1-modified BMSCs improve migration and reduce neuronal apoptosis after stroke in rats显示文摘Bone marrow-derived mesenchymal stem cells(BMSCs)have been demonstrated ameliorating neurologic deficits after stroke.Hypoxia-inducible factor-1(HIF-1),the key regulator of cellular responses to low oxygen concentration,can activate multiple genes involving in crucial aspects for neurologic recovery.In this study,we present that rat BMSCs overexpression of HIF-1showed higher expression of HIF-1 target genes in HIF-1-BMSCs,including CXCR4,EPO,and VEGF.BMSCs-mHIF-1 also exhibited an enhanced mobility towards the ischemic area within rat brain.Neural cell apoptosis in ischemic brain shown less severe in rats transplanted with HIF-1-BMSCs.Furthermore,the number of cells expressing neural progenitor markers PAX6 and DCX were increased in BMSCs-mHIF-1-transplanted rats.These results suggest that HIF-1 in BMSCs reduces neuronal apoptosis and promotes neurogenesis after stroke in rats. | YE ZhiZhong YE WeiBiao DENG YuBin WANG Jue ZHOU GuangQian ZHANG XiuQuan | 2013 | Chinese Science Bulletin2013，58，28： | 3 |
| 10 | The Positive Indian Ocean Dipole–like Response in the Tropical Indian Ocean to Global Warming显示文摘Climate models project a positive Indian Ocean Dipole(p IOD)–like SST response in the tropical Indian Ocean to global warming. By employing the Community Earth System Model and applying an overriding technique to its ocean component(version 2 of the Parallel Ocean Program), this study investigates the similarities and differences of the formation mechanisms for the changes in the tropical Indian Ocean during the p IOD versus global warming. Results show that their formation processes and related seasonality are quite similar; in particular, wind–thermocline–SST feedback is the leading mechanism in producing the anomalous cooling over the eastern tropics in both cases. Some differences are also found, including the fact that the cooling effect of the vertical advection over the eastern tropical Indian Ocean is dominated by the anomalous vertical velocity during the p IOD but by the anomalous upper-ocean stratification under global warming. These findings are further examined through an analysis of the mixed layer heat budget. | Yiyong LUO Jian LU Fukai LIU Xiuquan WAN | 2016 | Advances in Atmospheric Sciences2016，33，4： | 2 |
| 11 | 6G-Enabled Edge AI for Metaverse:Challenges, Methods,and Future Research Directions显示文摘Sixth generation(6G)enabled edge intelligence opens up a new era of Internet of everything and makes it possible to interconnect people-devices-cloud anytime,anywhere.More and more next-generation wireless network smart service applications are changing our way of life and improving our quality of life.As the hottest new form of next-generation Internet applications,Metaverse is striving to connect billions of users and create a shared world where virtual and reality merge.However,limited by resources,computing power,and sensory devices,Metaverse is still far from realizing its full vision of immersion,materialization,and interoperability.To this end,this survey aims to realize this vision through the organic integration of 6G-enabled edge artificial intelligence(AI)and Metaverse.Specifically,we first introduce three new types of edge-Metaverse architectures that use 6G-enabled edge AI to solve resource and computing constraints in Metaverse.Then we summarize technical challenges that these architectures face in Metaverse and the existing solutions.Furthermore,we explore how the edge-Metaverse architecture technology helps Metaverse to interact and share digital data.Finally,we discuss future research directions to realize the true vision of Metaverse with 6G-enabled edge AI. | Luyi Chang Zhe Zhang Pei Li Shan Xi Wei Guo Yukang Shen Zehui Xiong Jiawen Kang Dusit Niyato Xiuquan Qiao Yi Wu | 2022 | Journal of Communications and Information Networks2022，7，2： | 2 |
| 12 | A Survey of Applications Research on Content-Centric Networking显示文摘As a named data-based clean-slate future Internet architecture,Content-Centric Networking(CCN)uses entirely different protocols and communication patterns from the host-to-host IP network.In CCN,communication is wholly driven by the data consumer.Consumers must send Interest packets with the content name and not by the host’s network address.Its nature of in-network caching,Interest packets aggregation and hop-byhop communication poses unique challenges to provision of Internet applications,where traditional IP network no long works well.This paper presents a comprehensive survey of state-of-the-art application research activities related to CCN architecture.Our main aims in this survey are(a)to identify the advantages and drawbacks of CCN architectures for application provisioning;(b)to discuss the challenges and opportunities regarding service provisioning in CCN architectures;and(c)to further encourage deeper thinking about design principles for future Internet architectures from the perspective of upper-layer applications. | Xiuquan Qiao Hongyi Wang Wei Tan Athanasios V.Vasilakos Junliang Chen MBrian Blake | 2019 | China Communications2019，16，9： | 2 |
| 13 | Exploring Hits-Based Content Provisioning Mechanism in Content-Centric Networking显示文摘In-network caching and Interest packets aggregation are two important features of Content-Centric Networking(CCN).CCN routers can directly respond to the Interest request by Content Store(CS)and aggregate the same Interest packets by Pending Interest Table(PIT).In this way,most popular content requests will not reach the origin content server.Thus,content providers will be unaware of the actual usages of their contents in network.This new network paradigm presents content providers with unprecedented challenge.It will bring a great impact on existing mature business model of content providers,such as advertising revenue model based on hits amount.To leverage the advantages of CCN and the realistic business needs of content providers,we explore the hits-based content provisioning mechanism in CCN.The proposed approaches can avoid the unprecedented impact on content providers' existing business model and promote content providers to embrace the real deployment of CCN network. | QIAO Xiuquan NAN Guoshun GUO Lei DENG Shushan WANG Youfeng CHEN Junliang | 2014 | China Communications2014，11，7： | 2 |
| 14 | Finite Element Simulation on the Spin-forming of the 3D Non-axisymmetric Thin-Walled Tubes显示文摘为 3D non-axisymmetric 的压路机运动踪迹薄墙的试管是一条复杂空间曲线。除与空白的接触引起的压路机旋转以外,压路机和主要锭子在细工品附近旋转,并且也沿着革命半径的方向同时移动。正确地建立金属的有限元素(FE ) 模型旋转的方法基于 MSC。榨渣软件被介绍。就压路机的革命和旋转而言的计算公式被数学推理获得。节省的计算点 m 应该是一 4 多重为旋转 3Dnon-axisymmetric 为在细工品附近的压路机的一条革命强迫薄墙的试管获得形成的最大值。模拟结果为几个旋转方法一致很好到试验性的;最大的错误是不到 +-15% 。 | Qinxiang XIA Baixiang LIANG Saiiun ZHANG Xiuquan CHENG Feng RUAN | 2006 | Journal of Materials Science & Technology2006，22，2： | 2 |
| 15 | Tropical Atlantic Climate Response to Different Freshwater Input in High Latitudes with an Ocean-Only General Circulation Model显示文摘Tropical Atlantic climate change is relevant to the variation of Atlantic meridional overturning circulation(AMOC) through different physical processes. Previous coupled climate model simulation suggested a dipole-like SST structure cooling over the North Atlantic and warming over the South Tropical Atlantic in response to the slowdown of the AMOC. Using an ocean-only global ocean model here, an attempt was made to separate the total influence of various AMOC change scenarios into an oceanicinduced component and an atmospheric-induced component. In contrast with previous freshwater-hosing experiments with coupled climate models, the ocean-only modeling presented here shows a surface warming in the whole tropical Atlantic region and the oceanic-induced processes may play an important role in the SST change in the equatorial south Atlantic. Our result shows that the warming is partly governed by oceanic process through the mechanism of oceanic gateway change, which operates in the regime where freshwater forcing is strong, exceeding 0.3 Sv. Strong AMOC change is required for the gateway mechanism to work in our model because only when the AMOC is sufficiently weak, the North Brazil Undercurrent can flow equatorward, carrying warm and salty north Atlantic subtropical gyre water into the equatorial zone. This threshold is likely to be model-dependent. An improved understanding of these issues may have help with abrupt climate change prediction later. | MEN Guang WAN Xiuquan LIU Zedong | 2016 | Journal of Ocean University of China2016，15，5： | 2 |
| 16 | CYP1A1 and GSTM1 polymorphisms and lung cancer risk in Chinese populations:A meta-analysis显示文摘 | Xiuquan Shia Suhua Zhoua Zhongxu Wangb | | 0，，02： | 1 |
| 17 | Study on the synthesis and surface activities of disodium of mono-alkyl polyoxyethylene ether citrate显示文摘 | ZHOU ZHANGCAI YANG XIUQUAN SUN GANGJIAN | 2007 | Tenside2007，，5： | 1 |
| 18 | Route identification and direction control of smart car based on CMOS image sensor显示文摘 | Wang Xiuquan Shen Xiaoliu Chang Xiaoming | 2008 | ISECS International Colloqui-um on Computing Communication Contol and Management2008，2008，2： | 1 |
| 19 | Acoustics Based Monitoring and Diagnostics for the Progressive Deterioration of Helical Gearboxes显示文摘Gearbox condition monitoring(CM)plays a significant role in ensuring the operational reliability and efficiency of a wide range of critical industrial systems such as wind turbines and helicopters.Accurate and timely diagnosis of gear faults will improve the maintenance of gearboxes operating under sub-optimal conditions,avoid excessive energy consumption and prevent avoidable damages to systems.This study focuses on developing CM for a multi-stage helical gearbox using airborne sound.Based on signal phase alignments,Modulation Signal Bispectrum(MSB)analysis allows random noise and interrupting events in sound signals to be suppressed greatly and obtains nonlinear modulation features in association with gear dynamics.MSB coherence is evaluated for selecting the reliable bi-spectral peaks for indication of gear deterioration.A run-to-failure test of two industrial gearboxes was tested under various loading conditions.Two omnidirectional microphones were fixed near the gearboxes to sense acoustic information during operation.It has been shown that compared against vibration based CM,acoustics can perceive the responses of vibration in a larger areas and contains more comprehensive and stable information related to gear dynamics variation due to wear.Also,the MSB magnitude peaks at the first three harmonic components of gear mesh and rotation components are demonstrated to be sufficient in characterizing the gradual deterioration of gear transmission.Consequently,the combining of MSB peaks with baseline normalization yields more accurate monitoring trends and diagnostics,allowing the gradual deterioration process and gear wear location to be represented more consistently. | Kaibo Lu James Xi Gu Hongwei Fan Xiuquan Sun Bing Li Fengshou Gu | 2021 | Chinese Journal of Mechanical Engineering2021，34，4： | 1 |
| 20 | A Local Application Security Detection System Based on PaaS显示文摘 | Jie Shang Xiuquan Qiao Yahui Lu Xiaofeng Li | 2012 | Procedia Engineering2012，，： | 1 |
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