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Discovery of unusual phloroglucinol-triterpenoid adducts from Leptospermum scoparium and Xanthostemon chrysanthus by building blocks-based molecular networking
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作者 Jinyan Zhang Fen Liu +7 位作者 Qian Jin Xueyi Li Qiong Zhan Mu Chen Sisi Wang Zhenlong Wu Wencai Ye Lei Wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第6期353-357,共5页
The first phloroglucinol-triterpenoid hybrids,myrtphlotritins A-E(1-5),were rapidly recognized and isolated from two species of Myrtaceae by employing the building blocks-based molecular network(BBMN)strategy.Compound... The first phloroglucinol-triterpenoid hybrids,myrtphlotritins A-E(1-5),were rapidly recognized and isolated from two species of Myrtaceae by employing the building blocks-based molecular network(BBMN)strategy.Compounds 1-5 featured new carbon skeletons in which phloroglucinol derivatives were coupled with lupane-and dammarane-type triterpenoids through different linkage patterns.Their structures and absolute configurations were elucidated by comprehensive analysis of spectroscopic data and quantum chemical calculations.Biosynthetic pathways for compounds 1-5 were proposed on the basis of the coexisting precursors.Guided by the biogenetic pathways,the biomimetic synthesis of compound 1 was also achieved.Additionally,compounds 2,3,and 5 exhibited potent antiviral activities against herpes simplex virus type-1(HSV-1)infection,and compounds 2 and 5 displayed significant anti-inflammatory activities on RAW264.7 cells. 展开更多
关键词 Phloroglucinol-triterpenoid adduct MYRTACEAE building blocks-based molecular network Biomimetic synthesis Antiviral activity Anti-inflammatory activity
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Hubei: Building a Modern Communications Network
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《China Today》 2000年第10期22-25,共4页
关键词 CO building a Modern Communications Network HUBEI
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Traffic Scheduling Mechanism Based on Interference Avoidance for Meter Data Collection in Wireless Smart Grid Communication Networks
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作者 SHAO Sujie GUO Shaoyong +2 位作者 QIU Xuesong MENG Luoming LEI Min 《China Communications》 SCIE CSCD 2015年第7期142-153,共12页
Meter Data Collection Building Area Network(MDCBAN) deployed in high rises is playing an increasingly important role in wireless multi-hop smart grid meter data collection. Recently, increasingly numerous application ... Meter Data Collection Building Area Network(MDCBAN) deployed in high rises is playing an increasingly important role in wireless multi-hop smart grid meter data collection. Recently, increasingly numerous application layer data traffic makes MDCBAN be facing serious communication pressure. In addition, large density of meter data collection devices scattered in the limited geographical space of high rises results in obvious communication interference. To solve these problems, a traffic scheduling mechanism based on interference avoidance for meter data collection in MDCBAN is proposed. Firstly, the characteristics of network topology are analyzed and the corresponding traffic distribution model is proposed. Next, a wireless multi-channel selection scheme for different Floor Gateways and a single-channel time unit assignment scheme for data collection devices in the same Floor Network are proposed to avoid interference. At last, a data balanced traffic scheduling algorithm is proposed. Simulation results show that balanced traffic distribution and highly efficient and reliable data transmission can be achieved on the basis of effective interference avoidance between data collection devices. 展开更多
关键词 smart grid communication meter data collection traffic scheduling interference avoidance building area network
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ZTE to Build SDR Network for Portugal's Optimus
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作者 ZTE Corperation 《ZTE Communications》 2010年第1期12-12,共1页
ZTE Corporation, a leading global provider of telecommunications equipment and network solutions, announced on February 24, 2010 that Optimus will be deploying its software define radio (SDR) multi-mode solution, en... ZTE Corporation, a leading global provider of telecommunications equipment and network solutions, announced on February 24, 2010 that Optimus will be deploying its software define radio (SDR) multi-mode solution, enabling the operator to upgrade its GSM/UMTS network in Portugal and providing a smooth evolution path to LTE. ZTE's SDR network will include SDR RAN, network management system, and operation systems and software (NMS/OSS), enabling Optimus to optimize current 2G/3G services and smoothly upgrade to LTE. 展开更多
关键词 SDR UMTS ZTE to Build SDR Network for Portugal’s Optimus
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ZTE Softswitch the Working Solution to Build the New Generation Network
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作者 ZTE CORPORATION 《ZTE Communications》 2003年第2期7-7,共1页
ZTE Softswitch supports the interoperability and convergence oflegacy PSTN/ISDN, PLMN, IN, and the Internet, allowing operatorsor service providers to offer diversified services to any subscriber atany time on a ZTE S... ZTE Softswitch supports the interoperability and convergence oflegacy PSTN/ISDN, PLMN, IN, and the Internet, allowing operatorsor service providers to offer diversified services to any subscriber atany time on a ZTE Softswitch network.With powerful C4 and C5 features, ZTE Softswitch effectivelysolves the evolution problems in the existing networks, protectinglegacy network investment and reducing future investment to a prof-itable level for providers. 展开更多
关键词 ZTE Softswitch the Working Solution to Build the New Generation Network in on for TIME
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ZTE to Build IMS Core Network for China Mobile
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作者 ZTE Corporation 《ZTE Communications》 2010年第2期24-24,共1页
ZTE Corporation, a leading global provider of telecommunications equipment and network solutions, announced on April 26, 2010 that it has been chosen by China Mobile to deliver its IMS core network in key Chinese prov... ZTE Corporation, a leading global provider of telecommunications equipment and network solutions, announced on April 26, 2010 that it has been chosen by China Mobile to deliver its IMS core network in key Chinese provinces. The China Mobile' s commercial IMS network will boast 1.4 million lines when it is completed in three months. According to the comprehensive evaluation process by China Mobile, ZTE was ranked among the tier one IMS supplier group for the project this time. 展开更多
关键词 ZTE to Build IMS Core Network for China Mobile IMS CORE
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Zapp Selects ZTE to Build 3G Network in Romania
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《ZTE Communications》 2008年第2期14-14,共1页
ZTE, a leading global provide of telecommunications equipment and network sulutions, announced on May 29, 2008 that it has been selected by Zapp, Romania’s fourth largest mobile operator, to roll-out a WCDMA/HSDPA co... ZTE, a leading global provide of telecommunications equipment and network sulutions, announced on May 29, 2008 that it has been selected by Zapp, Romania’s fourth largest mobile operator, to roll-out a WCDMA/HSDPA commercial network. This deal reinforces ZTE position in Europe. Zapp plans on launching its 3G commercial services in early autumn 2008 and the network should be completed by 2011. 展开更多
关键词 ZTE Zapp Selects ZTE to Build 3G Network in Romania WCDMA
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Multimodality image registration and fusion using neural network
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作者 Mostafa G Mostafa Aly A Farag Edward Essock 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2003年第3期235-240,共6页
Multimodality image registration and fusion are essential steps in building 3-D models from remotesensing data. We present in this paper a neural network technique for the registration and fusion of multimodali-ty rem... Multimodality image registration and fusion are essential steps in building 3-D models from remotesensing data. We present in this paper a neural network technique for the registration and fusion of multimodali-ty remote sensing data for the reconstruction of 3-D models of terrain regions. A FeedForward neural network isused to fuse the intensity data sets with the spatial data set after learning its geometry. Results on real data arepresented. Human performance evaluation is assessed on several perceptual tests in order to evaluate the fusionresults. 展开更多
关键词 data fusion image registration image interpolation neural network 3-D model building
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China Builds Optical Fibre Tele-trunk Network
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作者 Wang Hualong 《China's Foreign Trade》 1995年第8期31-31,共1页
In early 1995 China began to build eight optical fibre cable trunks, including the 4,532km-long Hangzhou-Fuzhou-Guiyang-Chengdu trunk in southern China, the 2,133km-long Beijing-Hohhot-Yinchuan-Lanzhou trunk in the no... In early 1995 China began to build eight optical fibre cable trunks, including the 4,532km-long Hangzhou-Fuzhou-Guiyang-Chengdu trunk in southern China, the 2,133km-long Beijing-Hohhot-Yinchuan-Lanzhou trunk in the northern part of the country, and the 3,000km-long Beijing-Wuhan-Guangzhou trunk across the country. They will be put into use by the end of the year, thus finalizing the construction of 22 A- 展开更多
关键词 China Builds Optical Fibre Tele-trunk Network LINE
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A new 8-connected self-penetrating metal-organic framework based on dinuclear cadmium clusters as secondary building units 被引量:4
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作者 Kun-Huan He Yun-Wu Li +1 位作者 Yong-Qiang Chen Ze Chang 《Chinese Chemical Letters》 SCIE CAS CSCD 2013年第8期691-694,共4页
A new metal-organic framework(MOF) based on metal clusters as secondary building units(SBU),has been synthesized and structurally characterized.The reported MOF presents an interesting 8-connected self-penetrating... A new metal-organic framework(MOF) based on metal clusters as secondary building units(SBU),has been synthesized and structurally characterized.The reported MOF presents an interesting 8-connected self-penetrating coordination network based on dinuclear cadmium cluster with a 4^(24)·5·6~3 topology. Moreover,the thermal stability and luminescence property of this compound have been investigated. 展开更多
关键词 Metal-organic framework Secondary building units Coordination network Luminescence property
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Build Unified Transportation Network - Premier Li says
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《中国汽车(英文版)》 1997年第4期2-2,共1页
China should manage to build a nationwide, comprehensive transportation net-work which encompasses railways, highways, waterways and civil aviation, pointed by Premier Li Peng in his article in Economic Daily 5 Aug. O... China should manage to build a nationwide, comprehensive transportation net-work which encompasses railways, highways, waterways and civil aviation, pointed by Premier Li Peng in his article in Economic Daily 5 Aug. Of all, railways 展开更多
关键词 LI Build Unified Transportation Network Premier Li says
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