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Comparative Non Participating Transcriptome Analysis Response to Low Phosphorus by CmPht1;2 in Chrysanthemum

Phyton-International Journal of Experimental Botany 2023年第5期92卷 1391-1404页

作者： Chen Liu xiaowei tang Xiaohui Qu Fadi Chen Jiafu Jiang Sumei Chen State Key Laboratory of Crop Genetics and Germplasm Enhancement College of HorticultureNanjing Agricultural UniversityKey Laboratory of Flower Biology and Germplasm InnovationMinistry of Agriculture and Rural AffairsKey Laboratory of Biology of Ornamental Plants in East ChinaNational Forestry and Grassland AdministrationNanjing210095China Nanjing Institute of Agricultural Sciences Jiangsu Academy of Agricultural SciencesNanjing210046China

Chrysanthemum morifolium Ramat is one of the four major cut flowers in the ***1 family is focus on the uptake and transport of phosphate in *** our previous studies,CmPht1;2 overexpression line(Oe1)had higher phosphate contents both in roots and shoots,and its root development was significantly enhanced than wild type(WT)at low phosphorus conditions in *** analysis showed that several metabolites had a change in pyruvate metabolism and tricarboxylic acid(TCA)cycle *** explore the gene difference expression and the change of metabolic pathway between CmPht1;2-Oe1 and WT,we conducted the transcriptome analysis.A total of 617,681 and 207,271 unigenes were obtained from roots and shoots,*** were classified into biological process,cellular component and molecular function by Gene Ontology(GO).In addition,450 different expression genes(DEGs)were found in the roots after 2 d treatment,and 1,787 DEGs were identified in shoots after 7 d treatment under LP condition between Oe1 and *** the top 20 pathways of DEGs assigned by Kyoto Encyclopedia of Genes and Genomes(KEGG),TCA cycle and pyruvate metabolism pathways mostly affected by overexpression of CmPht1;2 attracted our *** research will be helpful for elucidating the mechanism of effects by CmPht1;2 overexpression on growth,development and stress tolerance.

关键词： Chrysanthemum CmPht1 2 overexpression line transcriptome pathways

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Discussion on the Chromosome Oscillation During Metaphase

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Chinese Physics Letters 1995年第2期12卷 126-128页

作者： tang xiaowei Institute of High Energy Physics Academia SinicaDeijing 100039

The chromosome oscillation diving metaphase is explained as the result of fluctuation of forces exerted on the *** this letter a simple model for chromosome oscillation is proposed and the formulas of force fluctuatio... 详细信息

关键词： oscillation letter explained

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New Upper Limit ofγ-Rays Emitted by Tritium Nucleus

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Chinese Physics Letters 1992年第10期9卷 508-510页

作者： tang xiaowei WU Yigen ZHANG Su CHEN Qingwang XIE Xiangqian Institute of High Energy Physics Academia SinicaBeijing 100039 Institute of Atomic Energy Beijing 102413

Using a strong tritium source and a low background HPGe spectrometer a new upper limit of γ-rays emitted by tritium nucleus,less than 3.4X10^(-13),is obtained.

关键词： limit Upper emitted

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Neural Network in Tau Decay Mode Identification

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Chinese journal of nuclear physics 1996年第3期18卷 137-144页

作者： Chen, Gang Chen, Guoming Chen, Hesheng Jin, Bingnian tang, xiaowei Wang, Yifang Zhang, Zhou Peking Univ Beijing China

A method of neural network identifying tau decay modes is *** systematic errors re-lated to the neural network are discussed in detail.A method is used to analyze one-prong hadronic tau de-cays in L3 experiment.

关键词： —Tau decay Neural computing Systematic error

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EXCLUSIVE MEASUREMENT OF A QUARTERNARY FRAGMENTATION EVENT OF RELATIVISTIC OXYGEN NUCLEUS IN EMULSION

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Chinese Physics Letters 1988年第7期5卷 309-312页

作者： tang xiaowei SUN Shurong ZHENG Puying Institute of High Energy Physics Academia SinicaBeijing

An event of peripheral collision of a relativistic oxygen *** immediately disintegrates into four helium nuclei,a quarternary fragmentation event,has been measured exclusively,and the mechanism of this event is *** qu... 详细信息

关键词： fragmentation integrate collision

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Theoretical analysis of ultra-fast phase recovery in semiconductor optical amplifiers

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Chinese Science Bulletin 2012年第9期57卷 1078-1082页

作者： CHEN LiGong XU TianXiang ZHENG Xiu ZHANG ShangJian GUO xiaowei tang XiongGui LIU Yong School of Optoelectronic Information University of Electronic Science ＆ Technology of China Chengdu 610054 China

We present results from theoretical analysis of the phase dynamics in semiconductor optical amplifiers(SOAs).In particular,we focus on an aspect of the ultra-fast phase recovery that currently does not have adequate in-depth theoretical analysis and clear explanation of the physical *** build up a numerical model to analyze the ultra-fast phase recovery of semiconductor optical amplifiers in *** investigate the phase response characteristics,we analyze the different contributions to the phase shift,including intra-band effects such as carrier heating,spectral hole burning,and inter-band effects such as carrier *** addition,the impact of the pulses energy on phase shift is also *** on the analysis of phase response characteristics,we further explain the reason why a delay occurs between gain response and phase *** analysis results are in good agreement with the reported experimental *** results presented in this paper are useful for the SOA-based ultra-fast optical signal processing,such as optical switches,optical logic gates,and optical Add/Drop multiplexer.

关键词：半导体光放大器光分/插复用器动力学理论光信号处理物理机制数值模型响应特性载体加热

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哈氏合金X电子束表面处理微观组织研究

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稀有金属材料与工程 2020年第8期49卷 2718-2723页

作者：邹慧唐晓薇天津市民用航空器适航与维修重点实验室天津300300 中国民航大学天津300300

利用强流脉冲电子束(HCPEB)轰击哈氏合金X表面对其进行改性,并对其显微组织进行分析和讨论。利用扫描电子显微镜(SEM)观察腐蚀后试样形貌,利用电子背散射衍射(EBSD)观察未腐蚀试样形貌。结果表明:从扫描电镜照片可以看到,未轰击试样晶... 详细信息

利用强流脉冲电子束(HCPEB)轰击哈氏合金X表面对其进行改性,并对其显微组织进行分析和讨论。利用扫描电子显微镜(SEM)观察腐蚀后试样形貌,利用电子背散射衍射(EBSD)观察未腐蚀试样形貌。结果表明:从扫描电镜照片可以看到,未轰击试样晶界被腐蚀,轰击后试样表面存在约为2μm的重熔层,腐蚀程度减轻,晶界处出现颗粒状碳化物;从EBSD结果可知,轰击5次试样晶粒尺寸最小,轰击5次和10次试样晶粒取向性更好,多为[101]和[110]。实验表明强流脉冲电子束轰击能够使哈氏合金X表面出现重熔层,并改变其晶粒大小和晶体取向。

关键词：强流脉冲电子束哈氏合金微观形貌晶粒尺寸织构

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Collaborative manufacturing technologies of structure shape and surface integrity for complex thin-walled components of aero-engine:Status,challenge and tendency

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Chinese Journal of Aeronautics 2023年第7期36卷 1-24页

作者： Biao ZHAO Wenfeng DING Zhongde SHAN Jun WANG Changfeng YAO Zhengcai ZHAO Jia LIU Shihong XIAO Yue DING xiaowei tang Xingchao WANG Yufeng WANG Xin WANG College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China School of Mechanical Engineering Northwestern Polytechnical UniversityXi’an 710072China AVIC Manufacturing Technology Institute Beijing 100024China School of Mechanical Science and Engineering Huazhong University of Science and TechnologyWuhan 430074China AECC Shenyang Liming Aero-engine Co. LTD.Shenyang 110000China

Presently,the service performance of new-generation high-tech equipment is directly affected by the manufacturing quality of complex thin-walled components.A high-efficiency and quality manufacturing of these complex thin-walled components creates a bottleneck that needs to be solved urgently in machinery *** address this problem,the collaborative manufacturing of structure shape and surface integrity has emerged as a new process that can shorten processing cycles,improve machining qualities,and reduce *** paper summarises the research status on the material removal mechanism,precision control of structure shape,machined surface integrity control and intelligent process control technology of complex thin-walled *** solutions and technical approaches are then put forward to solve the critical problems in the high-performance manufacturing of complex thin-wall *** development status,challenge and tendency of collaborative manufacturing technologies in the high-efficiency and quality manufacturing of complex thin-wall components is also discussed.

关键词： Collaborative manufacturing of shape and performance Complex thin-walled component Intelligent process control Material removal mechanism Surface integrity

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Transmit Power Minimization for IRS-Assisted NOMA-UAV Networks

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China Communications 2024年第5期21卷 137-152页

作者： Zhao Chen Pang xiaowei tang Jie Liu Mingqian Zhao Nan Zhang Xiuyin Wang Xianbin School of Information and Communication Engineering Dalian University of TechnologyDalian 116024China School of Electronic and Information Engineering South China University of TechnologyGuangzhou 510641China State Key Laboratory of Integrated Services Networks Xidian UniversityXi’an 710071China Department of Electrical and Computer Engineering Western UniversityLondonON N6A 5B9Canada

The flexibility of unmanned aerial vehicles(UAVs)allows them to be quickly deployed to support ground *** reflecting surface(IRS)can reflect the incident signal and form passive beamforming to enhance the signal in the specific *** by the promising benefits of both technologies,we consider a new scenario in this paper where a UAV uses non-orthogonal multiple access to serve multiple users with *** to their distance to the UAV,the users are divided into the close users and remote *** UAV hovers above the close users due to their higher rate requirement,while the IRS is deployed near the remote users to enhance their received *** aim at minimizing the transmit power of UAV by jointly optimizing the beamforming of UAV and the phase shift of IRS while ensuring the decoding ***,the problem is ***,we decompose it into two sub-problems,including the transmit beamforming optimization and phase shift optimization,which are transformed into second-order cone programming and semidefinite programming,*** propose an iterative algorithm to solve the two sub-problems *** results prove the effectiveness of the proposed scheme in minimizing the transmit power of UAV.

关键词： intelligent reflecting surface nonorthogonal multiple access phase shift optimization transmit beamforming optimization unmanned aerial vehicle

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Risk factors of major intraoperative bleeding and postoperative bleeding associated with endoscopic submucosal dissection for gastric neoplasms

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Chinese Medical Journal 2022年第3期135卷 309-316页

作者： Shanshan Xu Ningli Chai xiaowei tang Enqiang Linghu Shasha Wang Nankai University School of Medicine Nankai UniversityTianjin 300071China Department of Gastroenterology and Hepatology The First Medical Center of Chinese People's Liberation Army General HospitalBeijing 100853China

Background:Endoscopic resection bleeding(ERB)classification was proposed by the authors’team to evaluate the severity of intraoperative bleeding(IB)during endoscopic submucosal dissection(ESD).This study aimed to evaluate the application of ERB classification and to analyze the risk factors of major IB(MIB)and postoperative bleeding(PB)associated with ESD for gastric neoplastic ***:We retrospectively enrolled a total of 1334 patients who underwent ESD between November 2006 and September 2019 at The First Medical Center of Chinese People’s Liberation Army General *** patients were divided into the non-MIB group(including ERB-0,ERB-controlled 1[ERB-c1],and ERB-c2)and the MIB group(including ERB-c3 and ERB-uncontrolled[ERB-unc])according to the ERB *** factors of major MIB and risk factors of PB were analyzed using a logistic regression ***:Among the 1334 patients,773(57.95%)had ERB-0,477(35.76%)had ERB-c1,77(5.77%)had ERB-c2,7(0.52%)had ERB-c3,and no patients had *** rate of PB in patients with IB classifications of ERB-0,ERB-c1,ERB-c2,and ERB-c3 were 2.20%(17/773),3.35%(16/477),9.09%(7/77),and 2/7,*** multivariate analysis,proximal location(odds ratio[OR]:1.488;95%confidence interval[CI]:1.045-3.645;P=0.047)was the only significant risk factor of *** kidney disease(CKD)(OR:7.844;95%CI:1.637-37.583;P=0.010)and MIB(ERB-c3)(OR:13.932;95%CI:2.585-74.794;P=0.002)were independent risk factors of ***:Proximal location of lesions was a significant risk factor of ***,CKD and MIB(ERB-c3)were independent risk factors of *** attention should be paid to these high-risk patients for MIB and PB.

关键词： Endoscopic resection bleeding classification Endoscopic submucosal dissection Gastric neoplasms

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