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Complex regulatory network of Betula BplSPL8 in planta

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Journal of Forestry Research 2017年第5期28卷 881-890页

作者： chuang liu Minxiao Guan Xiaoqing Hu Jing Tian Xuemei liu College of Life Science Northeast Forestry University Suzhou Micro Diag Biomedicine Co. LtdJiangsu Engineering Research Center for Tumor Molecular Diagnostics

SQUAMOSA-promoter binding protein-like (SPL) proteins are plant-specific transcription factors and participate in different pathways, including the vegetative to reproductive transition, male sterility, biosynthesis of gibberellic acid (GA), plant morphogenesis and response to environmental stress. In this study, we generated transgenic Arabidopsis that overexpressed Betula BplSPL8 and confirmed that BplSPL8 is a transcription factor with transcriptional activation activity and is located in the nucleus. Functional analysis of BplSPL8 showed that it is involved in regulating different development processes: (1) BplSPL8 can delay flowering by reducing sensitivity to GA under short days; (2) BplSPL8 controls the number and morphogenesis of leaves, including up-rolling leaves under long days and folded leaves mediated by GA under short days; (3) BplSPL8 can promote root elongation during late development of roots and inhibit lateral root formation; (4) BplSPL8 may be involved in regulating carotenoid biosynthesis and secretion metabolism. These results show that there is a complex regulatory network for the SPL family genes that is mediated by other components and may provide a new insights for the functional research of SPL genes.

关键词： Birch Root SQUAMOSA-promoter binding protein-like Transgenic Carotenoid

Chinese Surveying and Control Network for Earth-Orbit Satellites and Deep Space Detection

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Geo-Spatial Information Science 2006年第1期9卷 6-12,37页

作者： WEI Erhu liu Jingnan SHI chuang School of Geodesy and Geomatics Wuhan University 129 Luoyu Road Wuhan 430079 China

The relationship between the surveying and contro l network(CSN) for earth-orbit satellite and spatial geodesy, and the relationshi p between the CSN for deep space celestial bodies and detectors, and deep space detection are briefly summarized, and so are the basic technical needs of the de ep space surveying and control network(DSN). Then, the techniques, the constitue nts and the distributing of Chinese satellite CSN (CSCSN) and other radio observ ing establishments in China are introduced. Lastly, with the primary CSCSN and o ther observing establishments, some projects for China to rebuild a more perfect CSCSN, and to establish a DSN are analyzed and stated.

关键词： satellite surveying and control network DSN microwave radio radar LLR DSCCs radio observation space-based station

Flood and Waterlogging Monitoring over Huaihe River Basin by AMSR-E Data Analysis

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Chinese Geographical Science 2008年第3期18卷 262-267页

作者： ZHENG Wei liu chuang XIN Zhongbao WANG Zhengxing Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China National Satellite Meteorological Center Beijing 100081 China

In this paper, we investigated the potential of Advanced Microwave Scanning Radiometer for Earth Observation System (AMSR-E) for flood monitoring. The proposed approach was based on the polarized ratio index (PRI), which was computed by using AMSR-E data at 37GHz, vertically and horizontally polarized brightness temperature values and the water surface fraction (WSF) got by using the PRI at 37GHz. Moderate Resolution Imaging Spectrora-diometer (MODIS) data were used to validate the WSF values. The analysis of flood and waterlogging using the WSF map on July 6, 2003 indicates that the use of WSF for flood and waterlogging disaster assessment is feasible. Utilizing the correlation of WSF derived from AMSR-E and water area derived from MODIS, the water area of the Huaihe River Basin were computed by only using AMSR-E data in the summer of 2003, which overcame the influence of cloud on water estimation using MODIS data during flood.

关键词： flood waterlogging AMSR-E Huaihe River Basin

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大中型立式水轮机导水机构厂内开度试验研究

水电站机电技术 2024年第8期47卷 15-17页

作者：李悝周文凯刘闯东方电气集团东方电机有限公司四川德阳618000

导水机构开度试验是水轮机制造的重要过程,传统的开度试验方式已不能满足时代发展的需要,本文以大中型立式水轮机导水机构为研究对象,简要说明了导水机构厂内预装开度试验的几种方式,深入分析了每种方式的优缺点,优选确定了最优方式,并... 详细信息

导水机构开度试验是水轮机制造的重要过程,传统的开度试验方式已不能满足时代发展的需要,本文以大中型立式水轮机导水机构为研究对象,简要说明了导水机构厂内预装开度试验的几种方式,深入分析了每种方式的优缺点,优选确定了最优方式,并详细阐述了该方式的研究应用情况及其安全高效和通用性好等特点。

关键词：导水机构开度试验外置式内置式接力器工装

Assessment of Waterlogging Risk in Lixiahe Region of Jiangsu Province Based on AVHRR and MODIS Image

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Chinese Geographical Science 2008年第2期18卷 178-183页

作者： HUANG Dapeng liu chuang FANG Huajun PENG Shunfeng Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China Huaihe River Commission Ministry of Water Resources P. R. China Bengbu 233001 China

Four images of 1991 AVHRR, 2003 and 2007 MODIS were used to extract waterlogging inundated water of three years, and three inundated water maps were overlaid to estimate waterlogging affected frequency. Based on wa-terlogging affected frequency, waterlogging hazard of pixel scale was assessed. According to the weighed score of area percentage of different waterlogging affected frequency in 13 counties/cities of Lixiahe region, waterlogging hazard rank of every county/city was assessed. Waterlogging affected frequency map and 1km×1km grid landuse map were used to assess waterlogging risk of pixel scale; and then waterlogging risk rank of every county/city was assessed by the similar method by which waterlogging hazard rank of every county/city was assessed. High risk region is located mainly in core zone of Lixiahe hinterland, medium risk region is adjacent to high risk region, and low risk region is located in the most outlying area of risk zone and mainly in south to middle part of Lixiahe region. Xinghua and Gaoyou belong to high risk city, Jiangyan belongs to medium risk city, and the other counties/cities have low or lower waterlogging risk. The method of assessing waterlogging risk in this paper is simple and applicable. This paper can provide guidance for the waterlogging risk analysis in broader area of Huaihe River Basin.

关键词： Lixiahe region waterlogging risk AVHRR MODIS Jiangsu Province

The SML pump of carbon cycles in oceans

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Science China Chemistry 2006年第2期49卷 126-132页

作者： ZHANG Zhengbin GONG Haidong liu Liansheng ZHANG chuang Institute of Marine Chemistry Ocean University of China Qingdao 266003 China Institute of Marine Chemistry Ocean University of China Qingdao 266003 China Institute of Marine Chemistry Ocean University of China Qingdao 266003 China Institute of Marine Chemistry Ocean University of China Qingdao 266003 China

Different from the solution/physical pump, biological pump and continental shelf pump of carbon cycle in oceans, a new pump named “surface microlayer (SML) pump” is developed based on data obtained from marine investigations and lab study. The SML pump has: (1) left-right dissymmetry of “pH-depth” curve; (2) the non-linearity of “concentration-depth” curve; and (3) difference of affect-ing confine of the SML pump. The issue of “source” or “sink” of atmospheric CO2 in the Yellow Sea and South China Sea is discussed.

关键词： carbon cycles in oceans, SML pump, three deductions, the Yellow Sea and South China Sea, 'source' or 'sink' of atmospheric CO2.

核电主蒸汽阀站中电磁先导阀的动态响应仿真研究

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机电工程 2024年第5期41卷 894-900,932页

作者：刘闯臧家林张福海金志江钱锦远浙江大学化工机械研究所浙江杭州310027 核电运行研究(上海)有限公司上海200120 浙江大学温州研究院浙江温州325036

针对核电主蒸汽阀站中关键部件之一——大气释放阀前置隔离阀在实际工况中常出现响应超时的问题,采用数值仿真软件Fluent中的动网格以及用户自定义函数技术,对控制其启闭过程的电磁先导阀动态响应过程进行了研究。首先,研究了电磁先导... 详细信息

针对核电主蒸汽阀站中关键部件之一——大气释放阀前置隔离阀在实际工况中常出现响应超时的问题,采用数值仿真软件Fluent中的动网格以及用户自定义函数技术,对控制其启闭过程的电磁先导阀动态响应过程进行了研究。首先,研究了电磁先导阀中先导结构的动态响应过程以及阀杆的受力情况;然后,研究了电磁先导阀中主阀的动态响应过程以及主阀泄压时阀内的压力和速度分布情况;最后,综合两个动态过程,分析了电磁先导阀整阀的运动时间。研究结果表明,电磁先导阀的运动时间为8.5 ms,其中先导结构的运动时间占比较小,85%的时间集中在电磁先导阀主阀动作过程。该研究结果可对前置隔离阀响应时间的优化提供参考。

关键词：前置隔离阀主蒸汽阀站动网格用户自定义函数动态响应电磁先导阀

Enhanced cycling stability of antimony anode by downsizing particle and combining carbon nanotube for high-performance sodium-ion batteries

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Journal of Materials Science & Technology 2020年第20期52卷 81-88页

作者： chuang liu Fanxin Zeng Li Xu Shuangyu liu Jincheng liu Xinping Ai Hanxi Yang Yuliang Cao College of Chemistry and Molecular Sciences Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and EnergyWuhan UniversityWuhan 430072China State Key Laboratory of Advanced Transmission Technology Global Energy Interconnection Research Institute Co.Ltd.Beijing 102211China EVE Energy Co.ltd. No.36Huifeng 7th RoadZhongkai Hi-Tech ZoneHuizhouChina

Antimony(Sb)nanoparticles(SbNP)encapsulated in multiwalled carbon nanotubes(MWCNTs)matrix has been fabricated by a facile two-step ball milling strategy,including a sand milling process to prepare Sb nanoparticles and following high-energy ball milling to synthesize SbNP-MWCNT *** an anode material for sodium-ion batteries(SIBs),the SbNP-MWCNT composite with high Sb content(80%)can deliver a reversible capacity of 471.1 mA hg^(-1)at 50 mA g^(-1)with an initial coulombic efficiency of 73.5%,excellent cycling stability(94.1%capacity retention at 800 mA g^(-1))and high rate capability(210.7 mA h g^(-1)at 3200 mA g^(-1)).The excellent electrochemical performance of the SbNP-MWCNT composite results from the synergistic effect of downsizing Sb particles and combining MWCNTs.

关键词： Antimony Nanoparticles Carbon nanotubes Anode Sodium ion battery Mechanical ball milling

Preventive and therapeutic effectiveness of Sanfu acupoint herbal patching for chronic obstructive pulmonary disease at stable stages:a systematic review and Meta-analysis

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Journal of Traditional Chinese Medicine 2020年第4期40卷 530-549页

作者： Pang Lijian Zhang Haoyang Lu Xiaodong liu Jianping liu chuang Lu Ling Beijing University of Chinese Medicine Beijing 100029China Affiliated Hospital of Liaoning University of Traditional Chinese Medicine Shenyang 110032China Liaoning University of Traditional Chinese Medicine Shenyang 110033China Center for Evidence Based Chinese Medicine Beijing University of Chinese MedicineBeijing 100029China

OBJECTIVE:To evaluate the preventive and therapeutic effects of Sanfu acupoint herbal patching(SAHP)in adjuvant treatment in patients with stable chronic obstructive pulmonary disease(COPD).METHODS:We had searched eight electronic databases and six major trial registries from their inception to July 2017 for randomized controlled trials(RCTs).We utilized RevMan 5.3 to evaluate the methodological quality and to perform data ***:A total of 28 RCTs involving 1615 records were included in the descriptive analysis,and 25 RCTs were performed for *** function such as forced vital capacity rate of one second FEV1/predicted%,forced vital capacity(FVC)%found no significant *** results of Meta-analysis showed that SAHP plus conventional therapy(CT)in the treatment of stable COPD were better than CT,in second sessions'data of FEV1,in third sessions'data of FEV1/FVC,in three sessions'data of SGRQ,in third session's data of Modified Medical Research Council and *** symptoms of SAHP's adverse reactions seem to be mild and the incidence of that seems to be *** analysis shows that SAHP with CT seems to improve clinical effective rate and had a certain preventive effect on acute exacerbation of COPD,which the curative effect may be better with the increase of treatment ***:SAHP with CT appears to be more effective than CT or CT plus placebo only on improving the quality of life,but the effect on lung function is not *** clinical effective rate and preventive effect is *** with CT may be used in any Grade to safely treat patients with stable *** more exactly clinical effect still needs to be proved by more high-quality,large sampling,multilingual RCTs.

关键词： Pulmonary disease,chronic obstructive Acupoint sticking therapy Randomized controlled trials Systematic review