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科研机构
北京大学 [38]
内容类型
期刊论文 [30]
其他 [8]
发表日期
2017 [4]
2016 [8]
2015 [12]
2014 [5]
2013 [2]
2011 [2]
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专题:北京大学
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Construction of Morphan Derivatives by Nitroso-Ene Cyclization: Mechanistic Insight and Total Synthesis of (+/-)-Kopsone
期刊论文
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2017
Zhai, Li
;
Tian, Xuechao
;
Wang, Chao
;
Cui, Qi
;
Li, Wenhua
;
Huang, Sha-Hua
;
Yu, Zhi-Xiang
;
Hong, Ran
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
alkaloids
cyclization
diradicals
morphan core
nitroso-ene reactions
ORGANIC-SYNTHESIS
CYCLOHEXANONES
ALKALOIDS
GENERATION
ESTERS
Broadband terahertz-power extracting by using electron cyclotron maser
期刊论文
SCIENTIFIC REPORTS, 2017
Pan, Shi
;
Du, Chao-Hai
;
Qi, Xiang-Bo
;
Liu, Pu-Kun
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
WAVE GYROTRON
FREQUENCY
OPERATION
MILLIMETER
SYSTEM
The design of a multi-harmonic step-tunable gyrotron
期刊论文
PHYSICS OF PLASMAS, 2017
Qi, Xiang-Bo
;
Du, Chao-Hai
;
Zhu, Juan-Feng
;
Pan, Shi
;
Liu, Pu-Kun
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2017/12/03
CYCLOTRON HARMONIC GYROTRON
HIGH-POWER
TERAHERTZ GYROTRON
OUTPUT WINDOW
PULSE MAGNET
THZ GYROTRON
FREQUENCY
OPERATION
ECRH
OSCILLATOR
Terahertz Broadband-Tunable Minigyrotron With a Pulse Magnet
期刊论文
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2017
Qi, Xiang-Bo
;
Du, Chao-Hai
;
Pan, Shi
;
Ji, Xiao
;
Huang, Bin
;
Liu, Kun
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2017/12/03
Broadband tuning
gyrotron
pulse magnet
terahertz (THz) radiation
DYNAMIC NUCLEAR-POLARIZATION
ELECTRON-CYCLOTRON MASER
1 MW GYROTRON
RADAR APPLICATIONS
BREWSTER WINDOW
THZ GYROTRON
460 GHZ
NMR
OPERATION
POWER
Rapid response of arbuscular mycorrhizal fungal communities to short-term fertilization in an alpine grassland on the Qinghai-Tibet Plateau
期刊论文
PEERJ, 2016
Xiang, Xingjia
;
Gibbons, Sean M.
;
He, Jin-Sheng
;
Wang, Chao
;
He, Dan
;
Li, Qian
;
Ni, Yingying
;
Chu, Haiyan
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/04
Fertilization
Plateau
Arbuscular mycorrhizal fungi
Community
Diversity
NITROGEN-FERTILIZATION
PLANT BIODIVERSITY
TERRESTRIAL ECOSYSTEMS
BACTERIAL COMMUNITIES
PHOSPHORUS LIMITATION
SEMIARID GRASSLAND
TEMPERATURE STRESS
INNER-MONGOLIA
SOIL BACTERIAL
DIVERSITY
Composition of the soil fungal community is more sensitive to phosphorus than nitrogen addition in the alpine meadow on the Qinghai-Tibetan Plateau
期刊论文
BIOLOGY AND FERTILITY OF SOILS, 2016
He, Dan
;
Xiang, Xingjia
;
He, Jin-Sheng
;
Wang, Chao
;
Cao, Guangmin
;
Adams, Jonathan
;
Chu, Haiyan
收藏
  |  
浏览/下载:6/0
  |  
提交时间:2017/12/03
Nitrogen addition
Phosphorus addition
Soil fungi
Alpine meadow
ARBUSCULAR MYCORRHIZAL FUNGI
LONG-TERM FERTILIZATION
MICROBIAL COMMUNITIES
ORGANIC-CARBON
LEAF-LITTER
DIVERSITY
PLANT
BACTERIAL
GRASSLAND
ECOSYSTEM
A 0.33-THz second-harmonic frequency-tunable gyrotron
期刊论文
CHINESE PHYSICS B, 2016
Li, Zheng-Di
;
Du, Chao-Hai
;
Qi, Xiang-Bo
;
Luo, Li
;
Liu, Pu-Kun
收藏
  |  
浏览/下载:39/0
  |  
提交时间:2017/12/03
gyrotron
mode transition
second harmonic
frequency tuning
terahertz
ELECTRON-CYCLOTRON MASER
MODE COMPETITION
LINEAR-THEORY
TERAHERTZ
OSCILLATORS
GHZ
TECHNOLOGY
SIMULATION
DESIGN
RANGE
Terahertz Gyrotron Broadband Tuning Based on Local Field Shaping in a Low-Q Cavity
期刊论文
IEEE TRANSACTIONS ON ELECTRON DEVICES, 2016
Li, Zheng-Di
;
Du, Chao-Hai
;
Luo, Li
;
Qi, Xiang-Bo
;
Liu, Pu-Kun
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2017/12/03
Dynamic nuclear polarization (DNP)
low-Q cavity
nuclear magnetic resonance (NMR)
second harmonic
terahertz (THz)
tunable gyrotron
ultralow voltage
DYNAMIC NUCLEAR-POLARIZATION
OPERATION
NMR
OSCILLATOR
Broadband ultra-low-voltage terahertz gyrotron
其他
2016-01-01
Qi, Xiang-Bo
;
Du, Chao-Hai
;
Liu, Pu-Kun
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
Developing A 0.33-THz Broadband Pulse Gyrotron
其他
2016-01-01
Du, Chao-Hai
;
Qi, Xiang-Bo
;
Huang, Bin
;
Pan, Shi
;
Ji, Xiao
;
Liu, Pu-Kun
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
TERAHERTZ TECHNOLOGY
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