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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 | The Chromosome-Level Reference Genome of Tea Tree Unveils Recent Bursts of Nonautonomous LTR Retrotransposons in Driving Genome Size Evolution显示文摘Dear Editor,The tea tree Camellia sinensis,a member of the genus Camellia in the Theaceae family,includes two major cultivated varieties,C.sinensis var.assamica(CSA\Assam type)and C.sinensis var.sinensis(CSS;Chinese type)(Ming and Bartholomew,2007).Due to the high economic importance of the tea tree,considerable efforts have been made to explore genetic basis of the biosynthesis of natural metabolites that determine health benefits and diverse tea flavors(Shi et al.,2011;Li et al.,2011;Li et al.,2015;Xia et aL,2017;Liu et al.,2019). | Qun-Jie Zhang Wei L i Kui Li Hong Nan Cong Shi Yun Zhang Zhang-Yan Dai Yang-Lei Lin Xiao-Lan Yang Yan Tong Dan Zhang Cui Lu Li-Ying Feng Chen-Feng Wang Xiao-Xin Liu Jian-An Huang Wen-Kai Jiang Xing-Hua Wang Xing-Cai Zhang Evan E.Eichler Zhong-Hua Liu and Li-Zhi Gao | 2020 | Molecular Plant2020，13，7： | 27 |
| 3 | Direct observation of localized surface plasmon field enhancement by Kelvin probe force microscopy显示文摘A surface plasmon(SP)is a fundamental excitation state that exists in metal nanostructures.Over the past several years,the performance of optoelectronic devices has been improved greatly via the SP enhancement effect.In our previous work,the responsivity of GaN ultraviolet detectors was increased by over 30 times when using Ag nanoparticles.However,the physics of the SP enhancement effect has not been established definitely because of the lack of experimental evidence.To reveal the physical origin of this enhancement,Kelvin probe force microscopy(KPFM)was used to observe the SP-induced surface potential reduction in the vicinity of Ag nanoparticles on a GaN epilayer.Under ultraviolet illumination,the localized field enhancement induced by the SP forces the photogenerated electrons to drift close to the Ag nanoparticles,leading to a reduction of the surface potential around the Ag nanoparticles on the GaN epilayer.For an isolated Ag nanoparticle with a diameter of~200 nm,the distribution of the SP localized field is located within 60 nm of the boundary of the Ag nanoparticle.For a dimer of Ag nanoparticles,the localized field enhancement between the nanoparticles was the strongest.The results presented here provide direct experimental proof of the localized field enhancement.These results not only explain the high performance of GaN detectors observed with the use of Ag nanoparticles but also reveal the physical mechanism of SP enhancement in optoelectronic devices,which will help us further understand and improve the performance of SP-based optoelectronic devices in the future. | Da-Bing Li Xiao-Juan Sun Yu-Ping Jia Mark I Stockman Hari P Paudel Hang Song Hong Jiang Zhi-Ming Li | 2017 | Light(Science & Applications)2017，6，1： | 2 |
| 4 | Evidence That the Diabetes Gene Encodes the Leptin Receptor: Identification of a Mutation in the Leptin Receptor Gene in db / db Mice显示文摘 | Hong Chen Olga Charlat Louis A Tartaglia Elizabeth A Woolf Xun Weng Stephen J Ellis Nathan D Lakey Janice Culpepper Karen J More Roger E Breitbart Geoffrey M Duyk Robert I Tepper Jay P Morgenstern | 1996 | Cell1996，，3： | 2 |
| 5 | The aging burden of hospitalization for heart failure in Chinese populations:evidence from the Macao Heart Failure Study显示文摘Objective To assess the aging burden of hospitalization for heart failure in Chinese populations in Macao.Methods The Macao Heart Failure Study consists of patients hospitalized with a diagnosis of acute heart failure(AHF)at Centro Hospitalar Conde de São Januário(the only public hospital that provides medical care for the approximately 600,000 residents of Macao)from January 2014 to December 2016.First,we investigated the relationship between socioeconomic development and epidemiological characteristics of HF in Macao.Then we assessed the patients’clinical features and outcomes according to the age groups.Results A total of 967 patients were included in the final analysis.The median age at admission was 82 years old.The advanced age at the admission of HF in Macao was significantly associated with a high-income level and the aging population structure.Marked heterogeneity existed in the epidemiological characteristics,clinical features,utilization of evidence-based therapies,short-and long-term outcomes,and prognostic utility of clinical variables among the different age groups.Conclusion Rapid economic development and significantly aging populations have produced a profound impact on the epidemiological characteristics of HF in Chinese populations.Acute decompensated heart failure(ADHF)is predominantly a disease of the elderly in Macao,and a significant heterogeneity exists in the clinical features,managements,and outcomes among different age groups.Age-based risk stratification models and multidisciplinary HF teams are urgently needed to improve the management and outcomes of hospitalized heart failure(HHF)patients. | Zhi-Nan LU Mario Evora Edmundo Lao Man Ieng Pun Weng Hong Pun Monica Pon Kong Chu Pui I Ieong Toi-Meng Mok Yong-Jian WU | 2020 | Journal of Geriatric Cardiology2020，17，9： | 2 |
| 6 | Ex Vivo adipose tissue engineering by human marrow stromal cell seeded gelat in sponge 显示文摘 | Hong L Peptan I Clark P | 2005 | Ann Biomed Eng2005，33，4： | 1 |
| 7 | Catalytic oxidation of NO to NO2 on activited carbon显示文摘 | Guo Z C Xie Y S Hong I | 2001 | Energy conversion and management2001，42，： | 1 |
| 8 | Antibacterial roperties,corrosion resistance and mechanical properties of Cu-modified SUS 304stainless steel显示文摘 | Hong I T Koo C H | 2005 | Materials Science and Engineering A2005，393，： | 1 |
| 9 | Simultaneous intrastriatal and intranigral fetal dopaminergic grafts in patients with Parkinson disease:a pilot study: report of three cases显示文摘 | Mendez I Dagher A Hong M | 2002 | J Neurosurg2002，96，3： | 1 |
| 10 | On the die corner gap formation in equal channel angular pressing 显示文摘 | KimHS SeoM H HongS I | 2000 | Materials Science and Engineering2000，291，： | 1 |
| 11 | Texture development and its effect on mechanical properties of an AZ61 Mg alloy fabricated by equal channel angular pressing显示文摘 | Kim W J Hong S I Kim Y S | 2003 | Acta Mater2003，51，11： | 1 |
| 12 | Development of Color Indicators forKimchi Packaging 显示文摘 | HONG S I PARK W S | 1999 | Journal of Food Science1999，64，2： | 1 |
| 13 | Isolation and characterization of solvent-tolerant Pseudomonas putida strain T-57, and its application to biotransformation of toluene to cresol in a two-phase(organic-aqueous)system显示文摘 | Faizal I Dozen K Hong CS | 2005 | J Industrial Microbiology and Biotechnology2005，32，1112： | 1 |
| 14 | Plasma treatments of indium tin oxide anodes in carbon tetrafluorinde( CF4 )/oxygen( 02 )to im- prove the performance of organic light-emitting diodes显示文摘 | CHAN I M HONG F C | 2003 | Thin Solid Films2003，444，： | 1 |
| 15 | Determining advanced recycling fees and subsidies in“E-scrap”reverse supply chains显示文摘 | Hong I H Ke J S | 2011 | Journal of Environmental Management2011，92，6： | 1 |
| 16 | Recombinant expression of human cathelicidin ( hCAP18/LL -37) in Pichia pastoris显示文摘 | HONG I P LEE S J KIM Y S | 2007 | Bio- technol Lett2007，29，1： | 1 |
| 17 | Mechanical stability and electrical conductivity of Cu-Ag filamentary micro composites 显示文摘 | Hong S I Hill M A | 1999 | Materials Science and Engineering1999，264，： | 1 |
| 18 | Short QT syndrome and atrial fibrillation caused by mutation in KCNH2 显示文摘 | Hong K Bjerregaard P Gussak I | 2005 | J Cardiovasc Electrophysiol2005，16，4： | 1 |
| 19 | Superplastic Cu-Ag microcomposites显示文摘 | Kwon H J Hong S I | 2001 | Journal of Alloys and Compounds2001，327，12： | 1 |
| 20 | Microstructure and Conductivity of Cu-Nb Microcomposites Fabricated by the Bundling and Drawing Process 显示文摘 | Hong S I Hill M A | 2001 | Scripta Materialia2001，44，： | 1 |
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