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青藏高原及其周边二叠纪综合地层、生物群以及古地理和古气候演化

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中国科学：地球科学 2024年第4期54卷 1125-1170页

作者：沈树忠张以春袁东勋徐海鹏琚琦张华郑全锋罗茂侯章帅南京大学地球科学与工程学院内生金属矿床成矿机制研究国家重点实验室关键地球物质循环前沿科学中心南京210023 中国科学院南京地质古生物研究所现代古生物学和地层学国家重点实验室南京210008 中国科学院大学南京学院南京210049 中国矿业大学资源与地球科学学院徐州221116

二叠纪是青藏高原各块体演化的关键时段,发生了一系列重大地质和生物事件,当时横跨南北半球统一的泛大陆演化到了鼎盛阶段,阻断了全球东西向的赤道暖流的同时,在泛大陆的东侧形成了一个半封闭的、具有重要历史意义的特提斯洋暖池,是古-... 详细信息

二叠纪是青藏高原各块体演化的关键时段,发生了一系列重大地质和生物事件,当时横跨南北半球统一的泛大陆演化到了鼎盛阶段,阻断了全球东西向的赤道暖流的同时,在泛大陆的东侧形成了一个半封闭的、具有重要历史意义的特提斯洋暖池,是古-中生代之交生物与环境演变的引擎.青藏高原二叠纪地层分布广泛、化石丰富,从南到北由于跨越不同的纬度带体现出不同的特点.雅鲁藏布江以南的喜马拉雅特提斯带当时位于冈瓦纳大陆印度板块北缘,整个二叠纪沉积含有典型的冈瓦纳冷水型生物群;雅鲁藏布江缝合带内的灰岩外来体时代集中在瓜德鲁普世(Guadalupian,中二叠世)中、晚期至早三叠世,古生物地理与喜马拉雅特提斯带有显著差异,最有可能为新特提斯洋中的海山型沉积.基墨里(Cimmerian)微地块群在乌拉尔世(Cisuralian,早二叠世)早期阿瑟尔期-萨克马尔期(Asselian-sakmarian)全部位于冈瓦纳大陆北缘,均发育冰海相沉积及冈瓦纳型冷水生物群.乌拉尔世中期(约290~280Ma)基墨里微地块群由于印度板块北缘Panjal Traps等大火成岩省岩浆活动与冈瓦纳大陆裂解,并以不同的速度向北漂移.可以分为两个条带,由南羌塘、保山和sibuma地块组成的北基墨里微地块群漂移速度较快,在亚丁斯克期(Artinskian)就已经出现大量碳酸盐岩沉积和暖水生物群,因此,它们最先从冈瓦纳大陆裂解并进入低纬度暖水区域;而由拉萨、腾冲和Irrawaddy地块组成的南基墨里微地块群,漂移速度相对较慢,在空谷(Kungurian)晚期才开始出现大规模碳酸盐岩沉积,并延续至乐平世(Lopingian,晚二叠世),瓜德鲁普世和乐平世地层中含暖水生物为主的动物群,因此,这些地块至少在空谷晚期已经从冈瓦纳大陆北缘分离,裂解时间稍晚于北基墨里微地块群;这种沉积和古生物地理的时空演变差异性表明乌拉尔世的裂解事件造成了中特提斯洋和新特提斯洋的开启和形成.更北的北羌塘地块由于整个二叠纪地层中均含有典型的暖水生物群,与华南地区、思茅地块和印支地块等可以比较,属于古特提斯洋北部的块体.因此,二叠纪中、晚期特提斯域形成了古、中、新特提斯多岛洋共存的局面,是当时构造活动最活跃的地区和全球生物多样性的中心.此外,青藏高原多个块体在二叠纪位于南半球中高纬度地区,完整记录了晚古生代大冰期、亚丁斯克期全球变暖和二叠纪末快速变暖等重大古气候事件,对于阐明板块运动和全球气候演变对生物群时空分布的影响具有举足轻重的作用.

关键词：二叠纪特提斯洋青藏高原生物群古地理

Density Functional Theory Investigation of structures and Electronic spectra of N-protonated Corroles

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Chinese Journal of Chemical Physics 2012年第3期25卷 281-290,373页

作者： Hui-ling Gao Guo-hua yao fang Chen wen-lou wang Dong-ming Chen Department of Chemical Physics University of Science and Technolo&y of China Hefei 230026 China

The geometries and electronic spectra of a series of N-protonated corroles, including unsub- stituted H4Cor＋ and meso-triaryl substituted H4TPC＋, H4TpFPC＋, and H4TdCPC＋, were theoretically studied with density functional theory （DFT）. The results indicate that all these compounds have two conformers, one with C2 symmetry （denoted as sl） is more stable than the other （denoted as $2, C1 symmetry） by 15.8-18.5 kJ/mol. The corrole macrocycles of these compounds show significant out-of-plane deformation. The enantiomerizations of the chiral s1 conformers were found to be a multi-step process with the $2 conformers as the intermediates. Electronic absorption spectra and electronic circular dichroism （ECD） of these compounds were calculated with time-dependent DFT. In comparison with H4Cor＋, the UV- Vis absorptions of meso-triaryl species are significantly red-shifted and their q bands are enhanced due to the π-π conjugation between the aryl and corrole rings. several neighboring electronic transitions were calculated with opposite signs in rotatory strengths, suggesting that ECD spectroscopy may be a useful tool in studying the electronic transitions of these compounds.

关键词： Corrole N-protonation Density functional theory Enantiomerization Elec-tronic spectrum

网络成瘾、家庭动力学与青少年抑郁障碍患者非自杀自伤行为的关系研究

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临床精神医学杂志 2024年第4期34卷 298-301页

作者：熊思怡陈方煜刘畅畅皖南医学院 241002 徽商职业学院皖南医学院首都医科大学附属北京安定医院芜湖医院(芜湖市第四人民医院) 山东省精神卫生中心

目的:探讨青少年抑郁障碍患者的网络成瘾、系统家庭动力学与非自杀性自伤行为(non-suicidal self-injury,NssI)的关系。方法:以2021年3月至2022年3月在芜湖市第四人民医院就诊的106例青少年抑郁障碍患者为研究对象。使用一般情况问卷、N... 详细信息

目的:探讨青少年抑郁障碍患者的网络成瘾、系统家庭动力学与非自杀性自伤行为(non-suicidal self-injury,NssI)的关系。方法:以2021年3月至2022年3月在芜湖市第四人民医院就诊的106例青少年抑郁障碍患者为研究对象。使用一般情况问卷、NssI水平问卷、系统家庭动力学量表和网络成瘾问卷进行施测。结果:入组患者中NssI发生率为89.6%。NssI水平在年级、是否经历校园/网络欺凌、吸烟饮酒史和冲动毁物行为上的差异均有统计学意义(P均ssI水平呈现显著的正相关(PssI水平呈现显著负相关(P均b=-12.530,t=-3.685)、吸烟饮酒史(b=-32.835,t=-4.112)和系统逻辑(b=-2.918,t=-2.724)均是NssI水平的影响因素(P均ssI发生率高,年级、吸烟饮酒史和系统逻辑能负向预测青少年抑郁障碍患者的NssI水平。

关键词：青少年抑郁障碍网络成瘾家庭动力学非自伤自杀行为

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TrIPLE　INTErACTIONs　OF　CONOrMAL　wAVEs　FOr　HIGHEr　OrDEr　sEMILINEAr　HyPErbOLIC　EqUMIONs

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Chinese Annals of Mathematics,series b 1995年第1期16卷 23-32页

作者： fang DAOyUAN (Center for Mathematical sciences, Zhejiang University, Hangzhou 310027, China.) 浙江大学数学科学中心浙江杭州

The interaction of three conormal waves for semi-linear strictly hyperbolic equations of third order is considered. Let Σi, i = 1, 2, 3, be smooth characteristic surfaces for P= Da(D_t￣2 -△) intersecting transversally at the origin. suppose that the solution u to Pu = f(t, x ,y)D u), ≤2 is conormal to Σi, i = 1, 2, 3, for t r uses bony's second microlocajization techniques and commutator arguments to conclude that the new singularities a short time after the triple interaction lie on the surface of the light cone Γ over the origin plus the surfaces obtained by flow-outs of the lines of intersection Γ ∩ Σi and Σi∩ Σj, i, j = 1, 2, 3.

关键词： Hyperbolic equation Conormal wave Interaction Characteristic surface.

surveillance of pine wilt disease by high resolution satellite

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Journal of Forestry research 2022年第4期33卷 1401-1408页

作者： Hongwei Zhou xinpei yuan Huanyu Zhou Hengyu shen Lin Ma Liping sun Guofei fang Hong sun College of Mechanical and Electrical Engineering Northeast Forestry UniversityHarbin 150040People’s Republic of China General station of Forest and Grassland Pest Managerment National Forestry and Grassland AdministrationShenyang 110034People’s Republic of China

Pine wilt disease caused by the pinewood nematode bursaphelenchus xylophilus has led to the death of a large number of pine trees in *** destructive disease has the characteristics of bring wide-spread,fast onset,and long incubation *** importantly,in China,the fatality rate in pines is as high as 100%.The key to reducing this mortality is how to quickly find the infected *** proposed a method of automatically identifying infected trees by a convolution neural network and bounding box *** method rapidly locates the infected area by classifying and recognizing remote sensing images obtained by high resolution earth observation *** recognition accuracy of the test data set was 99.4%,and the remote sensing image combined with convolution neural network algorithm can identify and determine the distribution of the infected *** can provide strong technical support for the prevention and control of pine wilt disease.

关键词： Pine wilt disease satellite remote sensing image Pest identification Convolution neural network

A new species of rain-pool frog (Dicroglossidae： Fejervarya) from western Thailand

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Zoological research 2017年第5期38卷 243-250页

作者： Chatmongkon suwannapoom Zhi-yong yuan Ke Jiang fang yan wei Gao Jing Che Division of Fishery School of Agriculture and Natural Resources University of Phayao Phayao 56000 Thailand Kunming Institute of Zoology Chinese Academy of Sciences Kunming Yunnan 650223 China College of Forestry Southwest Forestry University Kunming Yunnan 650224 China southeast Asia biodiversity research Institute Chinese Academy of Sciences Yezin Nay Pyi Taw 05282 Myanmar

we describe a new species, Fejervarya muangkanensis sp. nov., based on a series of specimens collected from ban Tha Khanun, Thong Pha Phum District, Kanchanaburi Province, Thailand. The new species is easily distinguished from its congeners by morphological and molecular data, and can be diagnosed by the following characters：（1） small size （adult male snout-vent length （sVL） 33.5 mm; female sVL 40.0-40.9 mm）; （2） tympanum small, discernible but unclear; （3） poorly developed toe webbing; （4） no lateral line system in adults; （5） characteristic ＂Fejervaryan＂ lines present in females; and （6） femoral glands absent. Molecular phylogenetic analysis of mitochondrial 16s rrNA further supports it as a distinct lineage and distinguishes it from its congeners for which sequences are available.

关键词： Fejervarya muangkanensis sp. nov. Kanchanaburi Thailand

Enhancing the intrinsic properties of flower-like biOI by s-doping toward excellent photocatalytic performances

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Journal of Materials science & Technology 2022年第23期118卷 190-198页

作者： Jie xiong Hong-yan Zeng sheng xu Jin-Feng Peng fang-yuan Liu Li-Hui wang College of Chemical Engineering Xiangtan UniversityXiangtan 411105China school of Mechanical Engineering Xiangtan UniversityXiangtan 411105China

A facile strategy was proposed to fabricate the s-doped flower-like biOI microspheres(s-biOI) for boosting the photocatalytic performance of biOI via engineering the surface oxygen vacancy and exposed {001}crystal *** s-doping generated oxygen vacancies in biOI lattice structure to create point defects and exposed {001} crystal planes,resulting in a decrease in bandgap and an enhancement in charges separation,which could significantly hasten the photocatalytic *** concentration of CH_(4) N_(2) s was a key factor to promote the Cr(Ⅵ) reduction *** optimized s-biOI_(1.25) presented a superior Cr(Ⅵ) removal efficiency of 100% for 60 min,which Cr(Ⅵ) reduction rate was 11.3 times higher than the pristine biOI and still remained 97.5% Cr(Ⅵ) removal after 5 *** calculation confirmed that the bandgap of the s-biOI was narrowed compared to that of biOI,but the s-biOI still remained the intrinsic band structure of the pristine biOI.

关键词： biOI sulfide doping Oxygen vacancy Photocatalyst Optical absorption

young's Inequality for Positive Operators

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Journal of Mathematical research and Exposition 2011年第5期31卷 915-922页

作者： Li fang Hong Ke DU Department of Mathematics Northwest University Shaanxi 710127 P. R. China College of Mathematics and Information science Shaanxi Normal University Shaanxi 710062 P. R. China

The classical young’s inequality and its refinements are applied to positive operators on a Hilbert space at first. based on the classical Poisson integral formula of relevant operators, some new inequalities on unitarily invariant norm of A1-p xb1-q - A1-q y b1-p are obtained with effective calculation, where A, b, x, y ∈ b（H） with A, b 0 and 1 p, q ∞ with the conjugate exponent q = p/（p - 1）.

关键词： young’s inequality positive operator.

Preparation of Dendritic Carbosilane-supported Palladium Catalyst and Its Catalytic Activity in Hydrogenation of Organic Compounds

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Chinese Chemical Letters 2005年第10期16卷 1389-1392页

作者： Chun fang LI Dong xiang LI Zhi Jie ZHANG sheng yu FENG school of Chemistry and Chemical Engineering Shandong University Jinan 250100 school of Chemistry Chemical Engineering and Materials Shandong Normal University Jinan 250014 Institute of Chemistry Chinese Academy of Sciences Beijing 100080

The preparation of palladium complex from PdCl2·2H2O and carbosilane dendrimers with pelripheral aminopropyl groups was described. The compound obtained was characterized by Ir, H NMr, x-ray photoelectron spectroscopy （xPs） and inductively coupled plasma atomic emission spectrometric （ICP-AEs） spectroscopy respectively. The metal complex was employed as catalyst in hydrogenation of organic compounds. The high activity of the complex was probably due to the formation of the coordinatively unsaturated palladium.

关键词： Dendrimer complex catalysis.