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| 1 | Towards 6G wireless communication networks:vision,enabling technologies,and new paradigm shifts显示文摘The fifth generation(5G)wireless communication networks are being deployed worldwide from 2020 and more capabilities are in the process of being standardized,such as mass connectivity,ultra-reliability,and guaranteed low latency.However,5G will not meet all requirements of the future in 2030 and beyond,and sixth generation(6G)wireless communication networks are expected to provide global coverage,enhanced spectral/energy/cost efficiency,better intelligence level and security,etc.To meet these requirements,6G networks will rely on new enabling technologies,i.e.,air interface and transmission technologies and novel network architecture,such as waveform design,multiple access,channel coding schemes,multi-antenna technologies,network slicing,cell-free architecture,and cloud/fog/edge computing.Our vision on 6G is that it will have four new paradigm shifts.First,to satisfy the requirement of global coverage,6G will not be limited to terrestrial communication networks,which will need to be complemented with non-terrestrial networks such as satellite and unmanned aerial vehicle(UAV)communication networks,thus achieving a space-airground-sea integrated communication network.Second,all spectra will be fully explored to further increase data rates and connection density,including the sub-6GHz,millimeter wave(mmWave),terahertz(THz),and optical frequency bands.Third,facing the big datasets generated by the use of extremely heterogeneous networks,diverse communication scenarios,large numbers of antennas,wide bandwidths,and new service requirements,6G networks will enable a new range of smart applications with the aid of artificial intelligence(AI)and big data technologies.Fourth,network security will have to be strengthened when developing 6G networks.This article provides a comprehensive survey of recent advances and future trends in these four aspects.Clearly,6G with additional technical requirements beyond those of 5G will enable faster and further communications to the extent that the boundary between physical and cyber worlds disappears. | Xiaohu YOU Cheng-Xiang WANG Jie HUANG Xiqi GAO Zaichen ZHANG Mao WANG Yongming HUANG Chuan ZHANG Yanxiang JIANG Jiaheng WANG Min ZHU Bin SHENG Dongming WANG Zhiwen PAN Pengcheng ZHU Yang YANG Zening LIU Ping ZHANG Xiaofeng TAO Shaoqian LI Zhi CHEN Xinying MA Chih-Lin I Shuangfeng HAN Ke LI Chengkang PAN Zhimin ZHENG Lajos HANZO Xuemin(Sherman)SHEN Yingjie Jay GUO Zhiguo DING Harald HAAS Wen TONG Peiying ZHU Ganghua YANG Jun WANG Erik GLARSSON Hien Quoc NGO Wei HONG Haiming WANG Debin HOU Jixin CHEN Zhe CHEN Zhangcheng HAO Geoffrey Ye LI Rahim TAFAZOLLI Yue GAO HVincent POOR Gerhard P.FETTWEIS Ying-Chang LIANG | 2021 | Science China(Information Sciences)2021,64,1: | 122 |
| 2 | Dual Functions of Microglia in Ischemic Stroke显示文摘Ischemic stroke is a leading cause of morbidity and mortality worldwide. Resident microglia are the principal immune cells of the brain, and the first to respond to the pathophysiological changes induced by ischemic stroke. Traditionally, it has been thought that microglial activation is deleterious in ischemic stroke, and therapies to suppress it have been intensively explored. However,increasing evidence suggests that microglial activation is also critical for neurogenesis, angiogenesis, and synaptic remodeling, thereby promoting functional recovery after cerebral ischemia. Here, we comprehensively review the dual role of microglia during the different phases of ischemic stroke, and the possible mechanisms controlling the post-ischemic activity of microglia. In addition, we discuss the dynamic interactions between microglia and other cells, such as neurons, astrocytes, oligodendrocytes,and endothelial cells within the brain parenchyma and the neurovascular unit. | Chuan Qin Luo-Qi Zhou Xiao-Tong Ma Zi-Wei Hu Sheng Yang Man Chen Dale B. Bosco Long-Jun Wu Dai-Shi Tian | 2019 | Neuroscience Bulletin2019,35,5: | 64 |
| 3 | MSM and HIV/AIDS in China显示文摘This article profiles current status of spread and control of HIV/AIDS in China. China has a significant population of MSM (men who have sex with men) and they have been becoming very much alive in many ways since 1990s due to recent social changes. Some surveys indicate that great many of MSM are engaged in high-risk behaviors. In addition, majority of MSM have also experienced sexual encounters with women sometimes in their lives, which possibly con- tribute to spread of HIV to women. Some reports documented that HIV is becoming rampant among MSM since more than 1% of them are now infected. Political, cultural and custom elements could hinder intervention activities against HIV spread among MSM. Fortunately, many cities in China have seen that MSM were in cooperation with responsible institutions carrying out certain intervention measures. The general situation is promising. The authors forecast that the fast HIV spread among MSM of China could possibly be halted within several years when the authorities become more sensible to this issue, health service institutions offer unswerving efforts toward the MSM community and those who involve in MSM undertakes necessary responsibilities. | Bei Chuan ZHANG Quan Sheng CHU | 2005 | Cell Research2005,15,11: | 26 |
| 4 | A scheduling method based on a hybrid genetic particle swarm algorithm for multifunction phased array radar显示文摘为解决多功能相控阵雷达的任务调度难题,本文提出了一种融合粒子群算法、遗传算法和启发式交错算法的优化算法。通过混沌理论优化粒子群算法的飞行参数,设计动态惯性权重,并引入遗传算法中的交叉、变异操作,使该算法的计算效率和寻优能力均得到大幅度提高。在智能算法的框架下,提出启发式的交错调度算法可进一步利用任务等待期的时间资源。仿真结果表明,与现有方法相比,本文算法效率更高,鲁棒性更强。 | Hao-wei ZHANG Jun-wei XIE Wen-long LU Chuan SHENG Bin-feng ZONG | 2017 | Frontiers of Information Technology & Electronic Engineering2017,18,11: | 13 |
| 5 | A New Alkaloid from the Root of Isatis indigotica Fort显示文摘A E-2-[(3’-indole)cyanomethylene]-3-indolinone was isolated from the root of Isatis indigotica Fort. The structure elucidation and 1H, 13C NMR assignments were achieved by spectroscopic method. | Wan Sheng CHEN*, Bin LI, Wei Dong ZHANG, Gen Jing YANG, Chuan Zhuo QIAO Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai 200433 | 2001 | Chinese Chemical Letters2001,12,6: | 11 |
| 6 | How Work Organization Affects the Prevalence of WMSDs: A Case-control Study显示文摘Objective In this study, we aimed at exploring the association between work-related musculoskeletal disorders(WMSDs) and work organization based on a case-control study. Methods A total of 1938 workers who claimed to suffer from WMSDs were selected from Beijing, Henan, Hubei, and the Guangdong province. The control group consisted of 2009 workers employed in similar industries without severe disease or musculoskeletal discomforts. We used a modified version of the questionnaire developed by the NMQ and the DMQ to investigate individual and work-related factors. Results A total of 13 variables(P<0.1) were selected by the chi-square test and finally, 7 variables entered into the equation, with 6 variables reaching statistical significance(P<0.05). The odds ratios(OR) of ‘work changing with season' and ‘sufficient rest time' did not reach 1(0.749 and 0.441, respectively). In addition, ‘sufficient rest time' seemed to be the stronger protective factor according to its higher standardized coefficient. And ‘repetitive work every minute', ‘constantly repetitive work'(every day), ‘shortage of site personnel', and ‘often switching shifts with others' seemed to be the risk factors. Conclusion Work organization may have comprehensive effects on the occurrence of WMSDs. This pattern of associations suggests that further investigation into the mechanism of how work organization affects the prevalence of WMSDs is required. | LIU Lu CHEN Song Gen TANG Shi Chuan WANG Sheng HE Li Hua GUO Ze Hua LI Jing Yun YU Shan Fa WANG Zhong Xu | 2015 | Biomedical and Environmental Sciences2015,28,9: | 11 |
| 7 | Tungsten Inert Gas Welding–Brazing of AZ31B Magnesium Alloy to TC4 Titanium Alloy显示文摘Tungsten inert gas(TIG) welding-brazing technology using Mg-based filler was developed to join AZ31 B Mg alloy to TC4 Ti alloy in a lap configuration.The results indicate that robust joints can be obtained with welding current in the range of 60-70 A.The joint interface was found to be likely composed of Mg-Ti diffusion reaction layer accompanied with Mg_(17)Al_(12) precipitate phase,indicating that metallurgical joining was achieved.The optimized joint with average tensile-shear strength of 190 N/mm^2 was obtained and fracture occurred at the Ti/fusion zone interfacial layer during tensile test.Moreover,the fracture surface was characterized by equiaxed dimple patterns accompanied with a few lamellar tearing.Finally,finite element modeling(FEM) numerical simulation was developed to analyze the distribution characteristics of the temperature field of joints. | Chuan Xu Guangmin Sheng Hui Wang Ke Feng Xinjian Yuan | 2016 | Journal of Materials Science & Technology2016,32,2: | 11 |
| 8 | A new triterpenoid from Kadsura coccinea显示文摘A new triterpenoid,possessing a lanost-9(11)-3-one skeleton,was isolated from the roots of Kadsura coccinea,based on the spectral analysis,its structure was elucidated as 3-hydroxy-12-acetoxycoccinic acid. | Yan Song Qing Jie Zhao Yong Sheng Jin Chuan Wei Feng Hai Sheng Chen | 2010 | Chinese Chemical Letters2010,21,11: | 10 |
| 9 | LiFePO_4 doped with magnesium prepared by hydrothermal reaction in glucose solution显示文摘与镁做的锂铁磷酸盐(LiFePO4 ) 热水地在水溶液作为碳先锋与葡萄糖从商业 LiOH, FeSO4, H3PO4 和 MgSO4 被综合。样品被 X 光检查粉末衍射描绘,扫描电子显微检查法和骑车的经常的费用分泌物。结果证明综合粉末在与从葡萄糖的焦糖反应生产的碳先锋涂的 situ。在环境温度(28 ± 2 ° C ) ,准备的 LiFePO4 的电气化学的表演展出 135 mAh g 的高排出量 ? 1 在 5C 和超过 90 的 98% 的好能力保留骑车。优秀电气化学的表演应该与在碳和主要的 LiFePO4 之间的亲密接触被相关,源于,导致 LiFePO4 的电导率的增加并且二级粒子在里面 situ 积炭的形成先锋 / 碳。 | Xiu Qin Ou Guang Chuan Liang Jin Sheng Liang Sheng Zhao Xu Xia Zhao | 2008 | Chinese Chemical Letters2008,19,3: | 10 |
| 10 | Signaling pathways involved in ischemic stroke:molecular mechanisms and therapeutic interventions显示文摘Ischemic stroke is caused primarily by an interruption in cerebral blood flow,which induces severe neural injuries,and is one of the leading causes of death and disability worldwide.Thus,it is of great necessity to further detailly elucidate the mechanisms of ischemic stroke and find out new therapies against the disease.In recent years,efforts have been made to understand the pathophysiology of ischemic stroke,including cellular excitotoxicity,oxidative stress,cell death processes,and neuroinflammation.In the meantime,a plethora of signaling pathways,either detrimental or neuroprotective,are also highly involved in the forementioned pathophysiology.These pathways are closely intertwined and form a complex signaling network.Also,these signaling pathways reveal therapeutic potential,as targeting these signaling pathways could possibly serve as therapeutic approaches against ischemic stroke.In this review,we describe the signaling pathways involved in ischemic stroke and categorize them based on the pathophysiological processes they participate in.Therapeutic approaches targeting these signaling pathways,which are associated with the pathophysiology mentioned above,are also discussed.Meanwhile,clinical trials regarding ischemic stroke,which potentially target the pathophysiology and the signaling pathways involved,are summarized in details.Conclusively,this review elucidated potential molecular mechanisms and related signaling pathways underlying ischemic stroke,and summarize the therapeutic approaches targeted various pathophysiology,with particular reference to clinical trials and future prospects for treating ischemic stroke. | Chuan Qin Sheng Yang Yun-Hui Chu Hang Zhang Xiao-Wei Pang Lian Chen Luo-Qi Zhou Man Chen Dai-Shi Tian Wei Wang | 2022 | Signal Transduction and Targeted Therapy2022,7,8: | 7 |
| 11 | Evolution of Microstructure,Mechanical Properties and Corrosion Resistance of Ultrasonic Assisted Welded-Brazed Mg/Ti Joint显示文摘Ultrasonic vibration with different powers from 0 k W to 1.6 k W was applied during the tungsten inert gas welding-brazing of Mg/Ti.The microstructures,mechanical properties and corrosion resistance of the ultrasonic assisted tungsten inert gas(U-TIG) welded-brazed Mg/Ti joint were characterized.The results showed that,without being subjected to ultrasonic vibration,coarse columnar α-Mg grains occurred in the fusion zone of Mg/Ti joint.However,with ultrasonic power of 1.2 k W,the average grain size of columnar α-Mg grains was refined from 200 μm to about 50 μm and the tensile strength of joints increased^18% up to 228 MPa.Besides,high fraction of grain boundaries was introduced by grain refinement,contributing to improve the corrosion resistance in two ways:(i) accelerating the formation of Mg(OH)2protective layer and(ii) reducing the mismatch and disorder between Mg(OH)2 protective layer and Mg alloy surface. | Chuan Xu Guangmin Sheng Xuezhen Cao Xinjian Yuan | 2016 | Journal of Materials Science & Technology2016,32,12: | 6 |
| 12 | Multiscale nanowire-microfluidic hybrid strain sensors with high sensitivity and stretchability显示文摘Nanomaterials with low-dimensional morphology have been explored for enhancing the performance of strain sensors,but it remains difficult to achieve high stretchability and sensitivity simultaneously.In this work,a composite structure strain sensor based on nanomaterials and conductive liquid is designed,demonstrated,and engineered.The nanowire-microfluidic hybrid(NMH)strain sensor responds to multiscale strains from 4%to over 400%,with a high sensitivity and durability under small strain.Metal nanowires and carbon nanotubes are used to fabricate the NMH strain sensors,which simultaneously exhibit record-high average gauge factors and stretchability,far better than the conventional nanowire devices.Quantitative modeling of the electrical characteristics reveals that the effective conductivity percolation through the hybrid structures is the key to achieving high gauge factors for multiscale sensing.The sensors can operate at low voltages and are capable of responding to various mechanical deformations.When fixed on human skin,the sensors can monitor large-scale deformations(skeleton motion)and small-scale deformations(facial expressions and pulses).The sensors are also employed in multichannel,interactive electronic system for wireless control of robotics.Such demonstrations indicate the potential of the sensors as wearable detectors for human motion or as bionic ligaments in soft robotics. | Songjia Han Chunrui Liu Huihua Xu Dongyuan Yao Kanghong Yan Huanliang Zheng Hui-Jiuan Chen Xuchun Gui Sheng Chu Chuan Liu | 2018 | npj Flexible Electronics2018,2,1: | 6 |
| 13 | The Synthesis of Gracillin and Dioscin: Two Typical Representatives of Spirostanol Glycosides显示文摘Two spirostanol saponins (gracillin and dioscin) which have the typical sugar moieties were synthesized facilely by a general approach. | Chuan Chun ZOU, Shu Jie HOU, Ping Sheng LEI*, Xiao Tian LIANG Institute of Materia Medica, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing 100050 | 2003 | Chinese Chemical Letters2003,14,4: | 5 |
| 14 | Circulating MicroRNAs as Novel Diagnostic Biomarkers for Very Early-onset(≤40 years) Coronary Artery Disease显示文摘Objective Very early-onset coronary artery disease(CAD) is a great challenge in cardiovascular medicine throughout the world,especially regarding its early diagnosis.This study explored whether circulating micro RNAs(mi RNAs) could be used as potential biomarkers for patients with very early-onset CAD.Methods We performed an initial screening of mi RNA expression using RNA isolated from 20 patients with angiographically documented very early-onset CAD and 20 age-and sex-matched normal controls.For further confirmation,we prospectively examined the mi RNAs selected from 40 patients with very early-onset CAD and 40 angiography-normal controls.Results A total of 22 overexpressed mi RNAs and 22 underexpressed mi RNAs were detected in the initial screening.RT-q PCR analysis of the mi RNAs obtained from the initial screening revealed that four mi RNAs including mi R-196-5p,mi R-3163-3p,mi R-145-3p,and mi R-190a-5p exhibited significantly decreased expression in patients compared with that in controls(P<0.05).The areas under the receiver operating characteristic curve for these mi RNAs were 0.824(95% CI,0.731-0.917;P<0.001),0.758(95% CI,0.651-0.864;P<0.001),0.753(95% CI,0.643-0.863;P<0.001),and 0.782(95% CI,0.680-0.884;P<0.001),respectively,in the validation set.Conclusion To our knowledge,this is an advanced study to report about four serum mi RNAs(mi R-196-5p,mi R-3163-3p,mi R-145-3p,and mi R-190a-5p) that could be used as novel biomarkers for the diagnosis of very early-onset CAD. | DU Ying YANG Sheng Hua LI Sha CUI Chuan Jue ZHANG Yan ZHU Cheng Gang GUO Yuan Lin WU Na Qiong GAO Ying SUN Jing DONG Qian LIU Geng LI Jian Jun | 2016 | Biomedical and Environmental Sciences2016,29,8: | 5 |
| 15 | Deceptive jamming discrimination based on range-angle localization of a frequency diverse array显示文摘针对电子对抗中的欺骗干扰鉴别问题,提出了基于频率分集阵列(frequency diverse array,FDA)的干扰鉴别方法。FDA波束具有距离—角度二维耦合特性,当波束聚焦距离与真实目标不一致时,会产生角误差信号,即干扰角度在相控阵中与真实目标一致,而在FDA中与真实目标不一致。因此,利用相控阵和FDA分别进行参数测量,比对测量结果即可实现干扰鉴别。提出了基于FDA进行干扰鉴别的具体流程,给出了两种双波束测量的实现方案,并对各方案的目标检测及参数估计性能进行了理论分析。仿真结果证明了该方法的有效性。 | Zhao-jian ZHANG Jun-wei XIE Chuan SHENG Zhun TANG | 2017 | Frontiers of Information Technology & Electronic Engineering2017,18,9: | 4 |
| 16 | Determinants of early mortality and benefits of lamivudine therapy in patients with hepatitis B virus‐related decompensated liver cirrhosis显示文摘 | Po‐linTseng Sheng‐NanLu Hung‐DaTung Jing‐HoungWang Chi‐SinChangchien Chuan‐MoLee | 2005 | Journal of Viral Hepatitis2005,,4: | 3 |
| 17 | Peginterferon Alfa-2a Plus Ribavirin for the Treatment of Dual Chronic Infection With Hepatitis B and C Viruses显示文摘 | Chun–Jen Liu Wan–Long Chuang Chuan–Mo Lee Ming–Lung Yu Sheng–Nan Lu Shun–Sheng Wu Li–Ying Liao Chi–Ling Chen Hsing–Tao Kuo You–Chen Chao Shui–Yi Tung Sien–Sing Yang Jia–Horng Kao Chen–Hua Liu Wei–Wen Su Chih–Lin Lin Yung–Ming Jeng Pei–Jer Chen Ding–Shinn | 2009 | Gastroenterology2009,,2: | 3 |
| 18 | Pulse interleaving scheduling algorithm for digital array radar显示文摘An online pulse interleaving scheduling algorithm is proposed for a solution to the task scheduling problem in the digital array radar(DAR). The full DAR task structure is explicitly considered in a way that the waiting duration is able to be utilized to transmit or receive subtasks, namely the pulse interleaving,as well as the receiving durations of different tasks are able to be overlapped. The algorithm decomposes the pulse interleaving scheduling analysis into the time constraint check and the energy constraint check, and schedules online all kinds of tasks that are able to be interleaved. Thereby the waiting duration and the receiving duration in the DAR task are both fully utilized. The simulation results verify the performance improvement and the high efficiency of the proposed algorithm compared with the existing ones. | ZHANG Haowei XIE Junwei ZHANG Zhaojian ZONG Binfeng SHENG Chuan | 2018 | Journal of Systems Engineering and Electronics2018,29,1: | 3 |
| 19 | Method to reconnoiter pulse amplitude train for phased array radar based on Hausdorff distance显示文摘This paper presents a method to estimate beam pointing of phased array radar by the pulse amplitude train, which is significant in radar electronic reconnaissance and electronic support measure. Firstly, the antenna patterns modeling of the phased array system is exploited to build the radar sweeping model and the signal propagation model. Secondly, the relationship between the variation of the radiated power and the antenna beam pointing angles in the given airspace is analyzed. Based on the above two points, the sample with obvious amplitude characteristics of the pulse amplitude train can be screened out after detecting the train peaks. Finally, the sample is matched to the subsequent pulse amplitude train based on the Hausdorff distance. The proposed methods have less prior knowledge and higher efficiency and are easier to process. By cross correlating the sample of the pulse amplitude train with the sample data of the antenna follow-up radiation, the probability of detection of the beam pointing direction becomes larger in case that the subsequent antenna beam returns to the specific position. | Chuan Sheng Yongshun Zhang Wenlong Lu Junwei Xie | 2017 | Journal of Systems Engineering and Electronics2017,28,6: | 3 |
| 20 | Segmental ureteroileal conduit resection for the treatment of distal upper urinary tract recurrence of bladder cancer fol lowing cystectomy显示文摘Segmental ureterectomy is less invasive than radical nephroureterectomy and results in nephron preservation and satisfactory tumor control.This study was to determine the feasibility of segmental ureteroileal conduit resection(SUICR) for patients with distal upper urinary tract recurrence of bladder cancer following radical cystectomy.Four patients with high-grade distal upper urinary tract recurrence underwent SUICR 15-108 months after radical cystectomy.The surgical technique details of SUICR,operative results,and follow-up outcomes are reported.The median operation time was 280 min,and estimated blood loss was less than 100 ml One patient suffered from ileus 5 days after surgery and was managed conservatively.Histopathologic evaluation showed high-grade stages pTa-pT1 diseases for these patients,and ureteral margins were all negative.No patient suffered from tumor recurrence,with a median follow-up of 39 months.SUICR preserved the ipsilateral renal unit and conformed to oncological principles during surgery.The oncological outcome was satisfactory for these properly selected patients.This technique provides a valid alternative to nephroureterectomy for patients with imperative indications and high-grade upper urinary tract recurrence of bladder cancer following radical cystectomy. | Shu‑Xiong Zeng Xin Lu Wei‑Dong Xu Zhen‑Sheng Zhang Hai‑Hang Li Ying‑Hao Sun Chuan‑Liang Xu | 2016 | Chinese Journal of Cancer2016,35,3: | 3 |