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36篇 您的检索式:作者名="Xiangfeng Chu"
    题名 作者 年代 出处 被引量
1The Genesis Mechanism of the Mantle Fluid Action and Evolution in the Ore-Forming Process: A Case Study of the Laowangzhai Gold Deposit in Yunnan, China显示文摘Based on petrological studies of the wall rocks, mineralizing rocks, ores and veins from the Laowangzhai gold deposit, it is discovered that along with the development of silication, carbonation and sulfidation, a kind of black opaque ultra-microlite material runs through the spaces between grains, fissures and cleavages. Under observations of the electron microprobe, scanning electronic microscopy and energy spectrum, this kind of ultra-microlite material is confirmed to consist of ultra microcrystalline quartz, silicate, sulfides and carbonates, as well as rutile, scheelite and specularite (magnetite), showing characters of liquation by the analyses of SEM and energy spectrum. The coexistence of immiscibility and precipitating co-crystallization strongly suggests that the mineralizing fluid changed from the melt to the hydrothermal fluid. Combined with the element geochemical researches, it is realized that the ultra-microlite aggregate is the direct relics of the mantle fluid behaving like a melt and supercritical fluid, which goes along with the mantle-derived magma and will escape from the magma body at a proper time. During the alteration process, the nature of the mantle fluid changed and it is mixed with the crustal fluid, which are favorable for mineralization in the Loawangzhai gold deposit.LIU Xianfan LI Chunhui LU Qiuxia DENG Biping SONG Xiangfeng ZHAO Fufeng CHU Yating XIAO Jixiong YI Liwen HUANG Yupeng 2012Acta Geologica Sinica(English Edition)2012,86,3:13
2A Local Cluster of Omicron Variant COVID-19 Likely Caused by Internationally Mailed Document——Beijing Municipality,China,January 2022显示文摘On January 15,2022,a 26 years old female(Case A)went to a sampling site for coronavirus disease 2019(COVID-19)testing due to excessive fatigue and fever for two days.This patient preliminarily tested positive for severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)using a quantitative real-time reverse transcription polymerase chain reaction(qRT-PCR)method.Daitao Zhang Shuangsheng Wu Zhenyong Ren Ying Sun Xiangfeng Dou Zhaomin Feng Fu Li Yi Tian Shujuan Cui Baiwei Liu Bing Lyu Xiaoli Wang Feng Liu Lina Jin Chu Jiang Lina Tian Zhenjiang Xin Zhichao Liang Lei Jia Quanyi Wang Yang Pan Peng Yang 2022China CDC weekly2022,4,14:6
3Acetone Sensors Based on La^(3+) Doped ZnO Nano-rods Prepared by Solvothermal Method显示文摘La3+ doped ZnO nano-rods with different doping concentration were prepared via solvothermal method.The doped ZnO nano-rods were characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM),respectively.The effect of La3+ doping on the gas-sensing properties was investigated.The results revealed that the sensor based on 6 mol% La3+ doped ZnO nano-rods exhibited high response to dilute acetone,and the responses to 0.01×10-6 acetone reached 2.4 when operating at 425 ℃.The response time and the recovery time for 0.01×10-6 acetone were only 16 and 3 s,respectively.Xiangfeng Chu Xiaohua Zhu Yongping Dong Xiutao Ge Shouquan Zhang Wenqi Sun 2012Journal of Materials Science & Technology2012,28,3:4
4Formaldehyde Sensing Properties of SnO–Graphene Composites Prepared via Hydrothermal Method显示文摘Graphene(G) was prepared by reducing graphene oxide(GO) with hydrazine hydrate. SnO –graphene composites with different amounts of graphene were prepared via hydrothermal method. SnO –G composites were characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM). The effects of the graphene content in the composites and the hydrothermal temperature on the gas-sensing responses of the materials to formaldehyde vapor were investigated. The gas-sensing selectivity of the sensor based on Sn O–1% G(100 °C, 10 h) composite to five kinds of gases(1000 × 10-6) was also studied. The results revealed that the sensor based on Sn O–1% G(100 °C, 10 h) exhibited high response to formaldehyde vapor when the operating temperature of the sensor was 133 °C and the response to 0.001 × 10-6formaldehyde attained 3.9. The response time and recovery time for 0.001 × 10-6formaldehyde were 24 and 12 s, respectively.Xiangfeng Chu Xiaohua Zhu Yongping Dong Wangbing Zhang Linshan Bai 2015Journal of Materials Science & Technology2015,31,9:4
5Preparation and gas sensitivity properties of ZnFe 2 O 4 semiconductors显示文摘Chu Xiangfeng Liu Xingqin Meng Guangyao 1999Sensors & Actuators: B Chemical1999,,1:1
6Trimeth- ylamine sensing properties of nano-LaFeO3 prepared using solid- state reaction in the presence of PEG400 显示文摘CHU Xiangfeng ZHOU Sumei ZHANG Wangbing 2009Materials Science and Engineering : B2009,164,15:1
7Gas-sensing properties of thick film based on ZnO nano-tetrapods显示文摘Chu Xiangfeng Jiang Dongli Aleksandra B Djuri(s)ic 2005Chem Phys Lett2005,401,46:1
8Preparation and properties ofy-Fe203 and Y203 doped y-FeO3 by a sol-gel process 显示文摘Shanwen Tao Xingqin Liu Xiangfeng Chu 2007Sensors and Actuators B: Chemical2007,61,13:1
9The prepara- tion and gas-sensing properties of NiFezO4 nanoeabes and nanorods 显示文摘Chu Xiangfeng Jiang Dongli Zheng Chenmou 2007Sensors Actuators B: Chem2007,123,:1
10Preparation and gas sentivity properties of ZnFe2O4 semiconductors显示文摘CHU XIANGFENG LIU XINQIN MENG GUANGYAO 1999Sensors and Actuators1999,55,:1
11The preparation and gas-sensing properties of NiFe2O4 nanocubes and nanorods显示文摘CHU Xiangfeng JIANG Dongli ZHENG Chenmou 0,,:1
12Gas-sensing properties of thick film based on ZnO nano-tetrapeds显示文摘 Jiang Dongli Djurisic Aleksandra B 2005Chem Phys Lett2005,401,46:1
13Preparation and gas sensitivity properties of ZnFe2O4 semiconductor显示文摘Chu Xiangfeng Liu Xingqin Meng Guangyao 1999Sensors Actuators B1999,,55:1
14Ethanol gas sensor based on CoFe 2 O 4 nano-crystallines prepared by hydrothermal method显示文摘Chu Xiangfeng Jiang Dongli Guo Yu Zheng Chenmou 2006Sensors & Actuators: B. Chemical2006,,1:1
15显示文摘Chu Xiangfeng Jiang Dongli Alcksandra B 2005Chemical Physics Letters2005,401,:1
16Preparation and properties of 7 - FqO3 and Y203 doped 7 - Fe203 by a sol -gel proeess显示文摘Shanwen Tao Xingqln Liu Xiangfeng Chu 1999Sensors and Actuators B1999,61,1:1
17显示文摘Chu Xiangfeng Liu Xingqin Wang Guozhong 1999Mat Res Bull1999,34,1011:1
18Preparation and Gas Sensitivity Properties of ZnFe2O4 Semiconductor显示文摘CHU Xiangfeng LIU Xingqin MENG Guangyao 1999Sensors and Actuators B(S0925-4005)1999,55,:1
19Gas-sensing properties of sensors based on single-crystalline SnO 2 nanorods prepared by a simple molten-salt method显示文摘Dan Wang Xiangfeng Chu Menglian Gong 2005Sensors & Actuators: B Chemical2005,,1:1
20The first local case of mpox caused by an imported case in the Chinese mainland显示文摘Monkeypox (mpox) is a zoonotic disease caused by the mpox virus (MPXV) that has been primarily limited to Central and West African nations since its discovery. The recent spread of the West African lineage of MPXV in historically unaffected countries has raised concerns for global public health. Despite a significant decrease in global mpox cases, there is still a risk of a global resurgence. This study reports the first local case of mpox caused by an imported case in the Chinese mainland. Polymerase chain reaction (PCR) diagnosed the two cases, and the viral genomes were obtained by next-generation sequencing. Genomic analysis revealed that the two strains shared an identical genome sequence and belonged to the B.1.3 branch of the West African lineage, which is the first local case of mpox caused by an imported case in the Chinese mainland, highlighting the potential threat of mpox in China and the immediate need for adequate surveillance measures.Daitao Zhang Xiao Qi Fu Li Yanhui Chu Ke Wu Jia Li Xin Meng Xiangfeng Dou Zhenyong Ren Haoyuan Jin Shuang Li Yulan Sun Yanwei Chen Renqing Li Dan Li Weihong Li Yang Yang Yang Pan Wenjie Tan Quanyi Wang 2023Biosafety and Health2023,5,4:1
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