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| 1 | AI for 5G: research directions and paradigms显示文摘Wireless communication technologies such as fifth generation mobile networks(5 G) will not only provide an increase of 1000 times in Internet traffic in the next decade but will also offer the underlying technologies to entire industries to support Internet of things(IOT) technologies. Compared to existing mobile communication techniques, 5 G has more varied applications and its corresponding system design is more complicated. The resurgence of artificial intelligence(AI) techniques offers an alternative option that is possibly superior to traditional ideas and performance. Typical and potential research directions related to the promising contributions that can be achieved through AI must be identified, evaluated, and investigated.To this end, this study provides an overview that first combs through several promising research directions in AI for 5 G technologies based on an understanding of the key technologies in 5 G. In addition, the study focuses on providing design paradigms including 5 G network optimization, optimal resource allocation, 5 G physical layer unified acceleration, end-to-end physical layer joint optimization, and so on. | Xiaohu YOU Chuan ZHANG Xiaosi TAN Shi JIN Hequan WU | 2019 | Science China(Information Sciences)2019，62，2： | 10 |
| 2 | Hilbert Transferin Applied to Separation of Waves显示文摘The analytical method (AM) for separation of composite waves is presented based on the Hilbert transform. It is ap-plicable to both regular and irregular trains of waves. The wave data series measured with two wave gauges in the experi-ments are separated into two series of incident and reflected waves. Then, the reflection coefficient can be easily ob-tained. The arrival of reflected waves can also be detected for improvement of the accuracy of the reflection coefficient.The reflection performance of the physical model can be estimated exactly without calculation of wave height and phasedifference. Numerical samples developed to test the method are proved to be accurate. Physical experiments are conduct-ed and compared with Goda's method and satisfactory results are obtained. | SUN Hequan(孙鹤泉) WANG Yongxue(王永学) PENG Jingping(彭静萍) | 2002 | China Ocean Engineering2002，17，2： | 7 |
| 3 | Trends of soil organic matter turnover in the salt marsh of the Yangtze River estuary显示文摘特征和土壤的潮汐的扁平的趋势有机物( SOM )周转在长江河口为 Chongmingdongtan 盐沼被学习基于稳定的碳同位素作文( 未1 3C )的分析,谷物微粒缩放并且满足器官的碳(停靠港),全部的氮( TN )和为从高潮汐的扁平的、中间的潮汐的公寓和赤裸的公寓挖掘的三个核心的无机的碳( TIC )。结果证明在土壤停靠港内容和盐沼核心的未 1 3C 价值之间的关联类似于在器官的碳(SOC ) 内容和未 1 3C 与不同高度多山的土壤侧面的上面的土壤层珍视的土壤之间的那些。盐沼的 SOM 通常比 100 年年轻,并且在长江的集水主要从表层土侵蚀发源。有 C/N 比率,满意于 TIC 内容的停靠港和停靠港的 TN 内容的关联与未 1 3C 价值满足因为核心建议从盐沼的 SOM 的周转度是全面的低,并且 SOM 周转的趋势从赤裸的公寓是清楚的到高潮汐的公寓。暴露原来的沉积的扁平的样品表演特征,与次要的 SOM 周转。SOM 的周转过程发生了并且在高、中间的潮汐的公寓,和有有泥泞潮汐的公寓的进化的不同周转率增加的 SOM 分隔空间的混合的度是可辨别的。交替的泥泞薄片和淤泥的薄片的独占的阶层结构在泥泞潮汐的公寓上从动态 depositional 过程发源是到溶解材料,和 SOM 周转的垂直移植的一个大障碍然后被抑制。泥泞潮汐的扁平的过程在盐沼对 SOM 的隐遁和周转施加了直接影响,并且在长江河口在 Chongmingdongtan 盐沼的 SOM 周转的空间、时间的特征上有大限制。 | CHEN Qingqiang GU Hequan ZHOU Juzhen MENG Yi HU Kelin | 2007 | Journal of Geographical Sciences2007，17，1： | 6 |
| 4 | Ge-on-Si modulators operating at mid-infrared wavelengths up to 8 μm显示文摘We report mid-infrared Ge-on-Si waveguide-based PIN diode modulators operating at wavelengths of 3.8 and8 μm. Fabricated 1-mm-long electro-absorption devices exhibit a modulation depth of >35 dB with a 7 V forward bias at 3.8 μm, and a similar 1-mm-long Mach–Zehnder modulator has a Vπ· L of 0.47 V · cm. Driven by a 2.5 Vpp RF signal, 60 MHz on-off keying modulation was demonstrated. Electro-absorption modulation at 8 μm was demonstrated preliminarily, with the device performance limited by large contact separation and high contact resistance. | TIANTIAN LI MILOS NEDELJKOVIC NANNICHA HATTASAN WEI CAO ZHIBO QU CALLUM GLITTLEJOHNS JORDI SOLER PENADES LORENZO MASTRONARDI VINITA MITTAL DANIEL BENEDIKOVIC DAVID JTHOMSON FREDERIC YGARDES HEQUAN WU ZHIPING ZHOU GORAN ZMASHANOVICH | 2019 | Photonics Research2019，7，8： | 5 |
| 5 | DeCASA in AgriVerse: Parallel Agriculture for Smart Villages in Metaverses显示文摘The demand for food is tremendously increasing with the growth of the world population,which necessitates the development of sustainable agriculture under the impact of various factors,such as climate change.To fulfill this challenge,we are developing Metaverses for agriculture,referred to as Agri Verse,under our Decentralized Complex Adaptive Systems in Agriculture(De CASA)project,which is a digital world of smart villages created alongside the development of Decentralized Sciences(De Sci)and Decentralized Autonomous Organizations(DAO)for Cyber-Physical-Social Systems(CPSSs).Additionally,we provide the architectures,operating modes and major applications of De CASA in AgriVerse.For achieving sustainable agriculture,a foundation model based on ACP theory and federated intelligence is envisaged.Finally,we discuss the challenges and opportunities. | Xiujuan Wang Mengzhen Kang Hequan Sun Philippe de Reffye Fei-Yue Wang | 2022 | IEEE/CAA Journal of Automatica Sinica2022，9，12： | 4 |
| 6 | The application of Hartley transform to ocean engineering显示文摘The Hartley transform is a real integral transform based on harmonic functions and hassome characteristics similar to the Fourier transform. Most applications in ocean engineering requiringthe Fourier transform can also be performed by the Hartley transform. The fast Hartley transform istwice faster and more convenient to handle than the corresponding fast Fourier transform, so it is a realvalued alternative to the complex Fourier transform in many applications. The use of the Hartley trans-form in ocean engineering is presented in detail in this paper, including wave spectral analysis, separationof waves, cross-correlation in PIV technique and expression of equation in the Hartley domain. The ex-amples in the paper show deeply the advantage and efficiency of the Hartley transform over the Fouriertransform. | Hequan Sun, Dahong Qiu, Yongxue Wang State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China + Corresponding author: Fax: +86-411-4708526, E-mail:hqsun@dlut. edu.cn | 2003 | Acta Oceanologica Sinica2003，22，3： | 2 |
| 7 | A new approach to the bicyclo[3.3.1]nonane framework of huperzine A-like molecules via palladium-catalyzed intramolecular γ-arylation显示文摘In our synthetic studies toward huperzine A, a diastereoselective α′-alkylation of the α-amido-γ-methyl hexenone 4 was realized through a dianion intermediate which significantly enhanced the reactivity. Under the attempted Heck reaction conditions, an unexpected and unprecedented palladium-catalyzed intramolecular γ-arylation of 3 was observed, which generated 18 with bicyclo[3.3.1]nonane framework in satisfactory yield. | DING Rui LU YunYu YAO HeQuan SUN BingFeng LIN GuoQiang | 2012 | Science China Chemistry2012，55，6： | 2 |
| 8 | 显示文摘 | HEQuan Guo(何全国) WUWei(吴伟) CHENHong(陈洪) | 2007 | 化学传感器2007，27，1： | 1 |
| 9 | 'Opportunities and Challenges in the Big Data Era' (大数据时代的机遇与挑战)显示文摘 | Wu Hequan | 2013 | 求是2013，4，： | 1 |
| 10 | APPLICATION OF CDF(2,2) TO ANALYSIS OF SUSPENDED SEDIMENT IMAGE显示文摘The characteristics of suspended sediment image can be reflected by the coefficients of biorthogonal wavelet transform of CDF(2,2). Based on the power distribution in different scales, an adaptive algorithm is proposed in this paper, whereby the coefficients are adjusted non-linearly. The particle information can be well retained while the useless background is removed. In this way, satisfactory binary image can be obtained for further analysis of the sediment particle. | Hequan Sun Liansheng Yu Yongming Shen Daoyin Yu Guangwen Zhu | 2005 | China Particuology2005，3，4： | 1 |
| 11 | The hartley transform applied to particle image velocimetry显示文摘 | Sun Hequan | 2002 | Measurement Science and Technology2002，13，12： | 1 |
| 12 | Enmein-type diterpenoid analogs from natural kaurene-type oridonin: Synthesis and their antitumor biological evaluation显示文摘 | Dahong Li Shengtao Xu Hao Cai Lingling Pei Hengyuan Zhang Lei Wang Hequan Yao Xiaoming Wu Jieyun Jiang Yijun Sun Jinyi Xu | 2013 | European Journal of Medicinal Chemistry2013，，： | 1 |
| 13 | IL-17A, But Not IL-17F, Is Indispensable for Airway Vascular Remodeling Induced by Exag- gerated Thl7 Cell Responses in Prolonged Ovalbumin-Challenged Mice显示文摘 | Shan Lu Hequan Li Rundi Gao | 2015 | J Immunol2015，194，8： | 1 |
| 14 | The hartley transform applied to particle image velocimetry显示文摘 | Sun Hequan | 2002 | Measurement Science and Technology2002，13，12： | 1 |
| 15 | Imbalance of Th17/Treg cells in mice with chronic cigarette smoke exposure显示文摘 | Huaying Wang Weidong Peng Yuesong Weng Huajuan Ying Hequan Li Dajing Xia Wanjun Yu | 2012 | International Immunopharmacology2012，，4： | 1 |
| 16 | Cancer-expanded mye- loid-derived suppressor cells induce anergy of nk cells through membrane-bound TGF-iS11 显示文摘 | Li Hequan Han Yanmei Guo Qiuli | 2009 | J Immuno12009，182，： | 1 |
| 17 | Depressing defocusing effect in microscopy by bi-orthogonal wavelet transform显示文摘For different dimensions, heights and irregular shapes, small and large particles cannot be viewed simultaneously as sharp images under the microscope due to optical defocusing effects. Bi-orthogonal wavelet transform is used in this paper to depress such defocusing effect by merging the wavelet coefficients of the image series. The algorithm is presented in detail, using SWE(13,7) and CDF(2,2), and a few particle images are provided to validate the proposed method. | Hequan Sun Jiguang wang Ruoli Shao | 2012 | Particuology2012，10，5： | 1 |
| 18 | Using radium isotopes to estimate the residence time and the contribution of submarine groundwater discharge (SGD) in the Changjiang effluent plume, East China Sea显示文摘 | Hequan Gu Willard S. Moore Lei Zhang Jinzhou Du Jing Zhang | 2012 | Continental Shelf Research2012，，： | 1 |
| 19 | Green ICT Impact on Energy Conservation and Emission Reduction显示文摘The direct and indirect effect of ICT on energy conservation and emission reduction is described. The energy consumption per unit GDP in the ICT industry is lower than that in other industries. The application of ICT in such fi elds as industrial design, manufacturing, management, logistics, sales and service can be helpful for energy conservation and emission reduction in the industrial and transportations industry; however, the issue of energy waste and environmental pollution caused by voluminous deployment of ICT products should never be overlooked. This paper presents the lat- est development of communications products in energy conservation and exemplifi es the roles of ICT in energy conservation and consumption reduction. The issue of electromagnetic radiation of ICT products and the recycling and reuse of e-wastes are explored. | Wu Hequan Chinese Academy of Engineering, Beijing, 100088, China | 2008 | China Communications2008，5，3： | 1 |
| 20 | Using radium isotopes to evaluate the uncertainty of submarine groundwater discharge in the northeast and entirety of Daya Bay显示文摘Submarine groundwater discharge(SGD),which can be traced using naturally occurring radium isotopes,has been recognized as a significant nutrient source and land-ocean interaction passage for the coastal waters of the Daya Bay,China.However,uncertainties in assessing SGD fluxes must still be discussed in detail.In this study,we attempted to utilize the Monte Carlo method to evaluate the uncertainties of radium-derived SGD flux in the northeast and entirety of the Daya Bay.The results show that the uncertainties of the SGD estimate in the northeast bay are very sensitive to variations in excess radium inventories as well as radium inputs from bottom sediments,while the uncertainties of the SGD estimate for the entire bay are strongly affected by fluctuations in radium inputs from bottom sediments and radium end-members of SGD.This study will help to distinguish the key factors controlling the accuracy of SGD estimates in similar coastal waters. | Hequan Gu Feng Zhao Zhixin Ni Meigui Wu Li Zhao Aicui Dang Dongmei Li Minxia Zhang Qin Hu | 2023 | Acta Oceanologica Sinica2023，42，8： | 0 |
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