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Correlation between Brightness Variability and Spectral Index Variability for Fermi Blazars

Research in Astronomy and Astrophysics 2022年第8期22卷 23-33页

作者： Wen-Xin Yang Hu-Bing xiao hong-Guang Wang Jiang-He Yang Zhi-Yuan Pei De-Xiang Wu Yu-Hai Yuan Jun-Hui Fan Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Astronomy Science and Technology Research Laboratory of Department of Education of Guangdong Province Guangzhou 510006China Key Laboratory for Astronomical Observation and Technology of Guangzhou Guangzhou 510006China Shanghai Key Lab for Astrophysics Shanghai Normal UniversityShanghai 200234China Department of Physics and Electronics Science Hunan University of Arts and ScienceChangde 415000China

In this work,theγ-ray photon flux,photon spectral index(α_(ph)),variability index(log V.I.),and the synchrotron peak frequency(log v_(p))are compiled for 851 common blazars from the 3 FGL and 4 FGL catalogs and Fan et *** investigate variability properties for Fermi *** calculations and analyses reach following results:(1)the averaged luminosity,spectral index,and variability index of FSRQs are higher than those of BL Lacs for the whole sample.(2)It is found that the spectral index variation is closely anti-correlated with the luminosity variation implying that the spectrum becomes harder when the source becomes brighter in theγ-ray band.(3)Positive correlations are found between the photon spectral index and bothγ-ray luminosity and variability index(log V.I.)for the whole sample,but anti-correlations are found in the two correlations for *** BL Lac subclass,there is a marginal anti-correlation between the photon spectral index and bothγ-ray luminosity,and a positive correlation between the photon spectral index and the variability index(log V.I.).We think those two positive correlations found for the whole sample are apparent.(4)We adopted the SVM machine learning method to separate BL Lacs and FSRQs in theα_(ph)versus log L_(γ)andα_(ph)versus log *** and proposed that a BCU is an FSRQ candidate if it satisfies log V.I.>-10.119 a+24.855,orα_(ph)>-0.048 log L_(γ)+4.498,otherwise,it is a BL Lac *** classification results are quite consistent with those by Kang et al(2019).

关键词： (galaxies:)BL Lacertae objects:general (galaxies:)quasars:general galaxies:active

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Risk factors for renal outcomes in children with antineutrophil cytoplasmic antibody-associated vasculitis:a nationwide retrospective study in China

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World Journal of Pediatrics 2024年第5期20卷 506-516页

作者： Li-Wen Tan Jun-Li Wan Chun-Hua Zhu hong Xu Zheng-Kun Xia Li-Zhi Chen xiao-Chuan Wu Fang Wang xiao-Rong Liu Cheng-Guang Zhao xiao-Zhong Li Jian-Hua Mao xiao-Wen Wang Wen-Yan Huang Yu-hong Li Jian-Jiang Zhang Shi-Pin Feng Jun Yang Jiao-Jiao Liu Chun-Lin Gao Li-Ping Rong Lan-Jun Shuai Ke Xu He-Jia Zhang Qiu Li Ai-Hua Zhang Mo Wang Department of Nephrology Children’s Hospital of Chongqing Medical UniversityZhongshan 2nd Rd.136Chongqing400014China Ministry of Education Key Laboratory of Child Development and Disorders National Clinical Research Center for Child Health and DisordersChina International Science and Technology Cooperation Base of Child Development and Critical DisordersChildren’s Hospital of Chongqing Medical UniversityChongqingChina Chongqing Key Laboratory of Pediatrics Children’s Hospital of Chongqing Medical UniversityChongqingChina Department of Nephrology Children’s Hospital of Nanjing Medical University72 Guangzhou RoadNanjing210008China Department of Nephrology Children’s Hospital of Fudan UniversityNational Paediatric Medical Center of ChinaShanghaiChina Department of Pediatrics Jinling HospitalNanjing Medical UniversityNanjingChina Department of Pediatrics Jinling HospitalThe First School of Clinical MedicineSouthern Medical UniversityNanjingChina Department of Pediatrics Jinling HospitalMedical School of Nanjing UniversityNanjingChina Department of Pediatric Nephrology and Rheumatology The First Affiliated Hospital of Sun Yat-Sen UniversityGuangzhouChina Department of Pediatrics The Second Xiangya Hospital of Central South UniversityChangshaChina Department of Pediatrics Peking University First HospitalBeijingChina Department of Nephrology Beijing Children’s HospitalCapital Medical UniversityBeijing100045China National Center for Children’s Health BeijingChina Department of Pediatrics Shengjing Hospital of China Medical UniversityShenyangChina Department of Nephrology and Immunology Children’s Hospital of Soochow UniversitySuzhouChina Department of Nephrology Children HospitalZhejiang University School of MedicineHangzhouChina Department of Nephrology Wuhan Children’s Hospital(Wuhan Maternal and Child Healthcare Hospital)Tongji Medical CollegeHuazhong University of Science&TechnologyWuhanChina Department of Nephrology and Rheumatology Shanghai Children’s HospitalSchool

Background Pediatric antineutrophil cytoplasmic antibody-associated vasculitis(AAV)is a life-threatening systemic vasculitis featured by liability to renal ***,there are few studies on the risk factors and predictive models for renal outcomes of AAV in *** Data from 179 AAV children in multiple centers between January 2012 and March 2020 were collected *** risk factors and predictive model of end-stage renal disease(ESRD)in AAV were *** renal involvement was the most typical manifestation(95.5%),and the crescent was the predominant pathological lesion(84.9%).The estimated glomerular filtration rate(eGFR)was evaluated in 114 patients,of whom 59.6%developed ESRD,and the median time to ESRD was 3.20 *** eGFR[P=0.006,odds ratio(OR)=0.955,95%confidence interval(CI)=0.924–0.987]and the percentages of global glomerulosclerosis(pGGS;P=0.018,OR=1.060,95%CI=1.010–1.112)were independent risk factors for ESRD of renal *** on the pGGS and eGFR at renal biopsy,we developed three risk grades of ESRD and one predictive *** Kaplan‒Meier curve indicated that renal outcomes were significantly different in different risk grades(Prenal involvement is the most common manifestation of pediatric AAV in China,of which more than half deteriorates into *** predictive model based on eGFR at renal biopsy and the pGGS may be stable and accurate in speculating the risk of ESRD in AAV children.

关键词： Antineutrophil cytoplasmic antibody End-stage renal disease Glomerulonephritis Pediatric nephrology Vasculitis

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原始数据压缩对全极化SAR极化信息的影响

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系统工程与电子技术 2015年第9期37卷 2029-2034页

作者：谭洪仇晓兰洪峻中国科学院空间信息处理与应用系统技术重点实验室北京100190 中国科学院电子学研究所北京100190 中国科学院大学北京100039

合成孔径雷达(synthetic aperture radar,SAR)原始数据压缩能有效降低星上下传数据率,但同时也引入压缩误差,对全极化SAR而言将造成极化信息的失真。利用仿真数据,在不同信杂比下,研究当前普遍使用的4bit量化、8∶3分块自适应量化(block... 详细信息

合成孔径雷达(synthetic aperture radar,SAR)原始数据压缩能有效降低星上下传数据率,但同时也引入压缩误差,对全极化SAR而言将造成极化信息的失真。利用仿真数据,在不同信杂比下,研究当前普遍使用的4bit量化、8∶3分块自适应量化(block adaptive quantization,BAQ)和8∶4BAQ 3种压缩方法引入的极化失真。仿真结果表明,数据压缩对图像残余通道不平衡的影响较小,一定条件下可忽略,对图像残余串扰的影响,只有在信杂比远高于40dB的条件下才表现出来,其他情况下将淹没于背景杂波中,这为全极化SAR数据压缩方法的选择提供了参考。

关键词：全极化合成孔径雷达原始数据压缩极化信息极化失真

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Identification of biomarkers for hepatocellular carcinoma by semiquantitative immunocytochemistry

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World Journal of Gastroenterology 2014年第19期20卷 5826-5838页

作者： hong Mu Kai-Xuan Lin hong Zhao Shu Xing Cong Li Fang Liu Hai-Zhen Lu Ze Zhang Yu-Lin Sun Xi-Yun Yan Jian-Qiang Cai xiao-Hang Zhao State Key Laboratory of Molecular Oncology Cancer Institute HospitalChinese Academy of Medical Sciences and Peking Union Medical College Center of Basic Medical Sciences Navy General Hospital of Chinese PLA Department of Abdominal Surgery Cancer Institute HospitalChinese Academy of Medical Science and Peking Union Medical College Key Laboratory of Protein and Peptide Pharmaceutical National Laboratory of BiomacromoleculesInstitute of BiophysicsChinese Academy of Sciences Department of Pathology Cancer Institute HospitalChinese Academy of Medical Sciences and Peking Union Medical College

AIM: To investigate the expression of key biomarkers in hepatoma cell lines, tumor cells from patients’ blood samples, and tumor tissues.

关键词： Hepatocellular carcinoma Biomarker Immunocytochemistry Semiquantitative analysis Three-dimensional reconstruction

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Compact auto-stereoscopic display based on directional backlight using side-glowing polymer optical fiber array

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Optoelectronics Letters 2020年第3期16卷 200-204页

作者： HE Yong LU Zhao-hong LIU Chu-jia GAO Fei-fei LI Zi-run ZHUANG Qi-ren Fujian Key Laboratory of Light Propagation and Transformation College of Information Science and EngineeringHuaqiao UniversityXiamen 361021China TPV Display Technology(Xiamen)Co. LtdXiamen 361101China

A compact directional backlight module of time-multiplexed auto-stereoscopic display based on side-glowing polymer optical fiber(SGPOF)is *** optical system is mainly composed of SGPOF array and cylindrical lens *** crosstalk is reduced by inserting a grating film as multi-slit diaphragm between the SGPOF array and the cylindrical lens array.A theoretical model is constructed based on the imaging optics principle of the off-axis *** the experiments,the cylindrical lens array concentrates a small number of views on three different view zones,the display can provide high *** measurement results show that the luminance uniformity of the backlight module is up to 89.6%,and in the viewing zone the crosstalk is lower than 10%.The backlight module is compacted that the thickness being only 7 *** full-resolution and low-crosstalk 3D images are realized by using SGPOF backlight.

关键词： cylindrical directional fiber

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慢性乙型肝炎病毒感染特殊人群抗病毒治疗的几个问题

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中华肝脏病杂志 2010年第7期18卷 481-482页

作者：任红重庆医科大学病毒性肝炎研究所 400010

对于慢性乙型肝炎患者,抗病毒治疗目的是阻断肝炎-肝硬化-肝癌＂三部曲＂进程,减低和防止终末期肝病的发生.抗病毒治疗的有效性及可行性已勿容置疑,但其是否可改变慢性HBV感染者的最终结局,影响疾病长期转归还需更多循证医学证据支持.

关键词：肝炎,乙型,慢性肝硬化妊娠治疗抗病毒药

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Identification and functional characterization of the MdHB-1 gene promoter sequence from Malus×domestica

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Journal of Integrative Agriculture 2017年第8期16卷 1730-1741页

作者： WANG Hao-jie JIANG Yong-hua QI Ying-wei DAI Jie-yu LIU Yan-li ZHU Xian-bo LIU Cui-hua Lü Yan-rong ren xiao-lin College of Horticulture North west A&F UniversityYangling 712100P.R.China Institute of Economic Crop Research Shiyan Academy of Agricultural SciencesShiyan 442714P.R.China

Homeobox 1 in Malusxdomestica （MdHB-1） is a transcription factor that belongs to homeodomain-leucine zipper I （HD-Zip I） protein subfamily. According to previous reports, MdHB-1 could regulate ethylene synthesis by binding with the MdAC01 promoter, but other functions of MdHB-1 are still unknown. To reveal more clues concerning the characters of the MdHB-1 gene promoter and the functions of MdHB-1, the promoter region of MdHB-1 was cloned from the Royal Gala apple genome and recombined with the 13-glucuronidase （GUS） gene in this study. This research was conducted in Nicotiana tabacum and supported by Agrobacterium-mediated transient transformation and bioinformatics analysis. Deletion analysis of the MdHB-1 promoter showed that the GUS gene could be activated by serially deleted promoters, and the activity promoted by 680 nucleotides （nt） was the lowest. The region, which is 266 nt upstream of the initiation code （ATG）, was effective for GUS expression. Meanwhile, the activity of the MdHB-1 promoter （-1 057 nt）, which was stronger than MdHB-1 promoter （-1 057 to -266 nt） and lack the 5＂-untranslated region （5＂-UTR）, showed that 5＂-UTR may have a positive effect on gene transcription. After the sequence analysis, the cis-acting elements that respond to hormones and environmental stresses were identified in the promoter region. The MdHB-1 promoter （1 057 nt） activity in Nicotiana tabacum was positively induced by ethrel and darkness, and it was suppressed by gibberellic acid （GA）, whereas abscisic acid （ABA）, salicylic acid （SA）, wounding, and Pseudomonas syringae pv. tomato （DC3000） treatments revealed a slight auxo-action. These results reveal that the MdHB-1 promoter receive internal or external signals, and MdHB-1 may refer to many biological activities in apple, such as its stress response, development, and ripening.

关键词： transcription factor HD-Zip MdHB-1 promoter hormone stress

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Tunable microwave photonic filter based on a fiber ring and erbium-doped fiber amplifier

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Optoelectronics Letters 2007年第6期3卷 406-409页

作者： FU hong-yan OU Hai-yan CHEN Da-ru xiao Yun HE Sai-ling Center for Optical and Electromagnetic Research State Key Laboratory of Modern Optical Instrumentation Joint Re-search Center of Optical Communications of Zhejiang University Zhejiang University Hangzhou 310058 China

The tunable microwave photonic filter based on a fiber ring and erbium-doped fiber amplifier （EDFA） was proposed. By introducing a section of erbium-doped fiber （EDF） into the fiber ring, the loss of the signal can be compensated by the EDFA gain through adjusting the pump power. This can largely increase the number of the effective sampling taps, and then improve the performance of the microwave photonic filter notably. When the pump power was set to be 42.7 roW, a microwave bandpass filter with the 3-dB bandwidth of 0.15 MHz, the Q factor up to 100 and extinction ratio up to 20 dB was achieved. By employing a tunable optical delay line in the above fiber ring, a tunable microwave photonic filter has been realized through tuning the length of the optical delay line. The proposed tunable microwave photonic filter can fred great applications in microwave signal processing and ROF system.

关键词：光纤元件微波纤维放大器纤维环

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慢性乙型肝炎治疗的目标与终点：再谈持久免疫控制

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中华肝脏病杂志 2012年第10期20卷 721-722页

作者：任红重庆医科大学附属第二医院、重庆医科大学病毒性肝炎研究所、中华肝脏病杂志编辑部 400010

从目前发布的国际及中国慢性乙型肝炎（CHB）防治指南看，对CHB治疗的目标明确：最大限度地长期抑制HBV，延缓肝脏失代偿，减少肝细胞癌（HCC）的发生，从而改善患者生活质量和延长生存时间。

关键词：肝炎乙型慢性治疗免疫控制

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7075铝合金“双峰”时效研究

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材料热处理学报 2010年第2期31卷 80-84页

作者：陈小明宋仁国李红霞任建平张宇浙江工业大学机械制造及自动化教育部重点实验室浙江杭州310014

采用硬度测试、拉伸力学性能测试、XRD衍射物相分析以及α(A l)基体点阵常数的测量等方法对7075铝合金超长时间时效行为、力学性能、应力腐蚀(SCC)敏感性及组织进行了研究。结果表明,7075铝合金的硬度及强度都具有时效双峰特征。两个时... 详细信息

采用硬度测试、拉伸力学性能测试、XRD衍射物相分析以及α(A l)基体点阵常数的测量等方法对7075铝合金超长时间时效行为、力学性能、应力腐蚀(SCC)敏感性及组织进行了研究。结果表明,7075铝合金的硬度及强度都具有时效双峰特征。两个时效峰的硬度和强度相差不多,但对应第二峰时效的合金具有高强度低SCC敏感性等优异性能。第二峰强化相主要是充分析出的η′相(MgZn2)。

关键词： 7075铝合金 “双峰”时效组织性能

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