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Description of a New Species of Amolops (Anura:Ranidae) from Tibet,China

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Asian Herpetological Research 2019年第4期10卷 219-229页

作者： Shuo QI Zhengyan ZHOU zhitong LYU Yuyan LU Han WAN Mian HOU Keji GUO Pipeng LI Institute of herpetology Shenyang Normal UniversityShenyang 110034LiaoningChina The Museum of Biology School of Life SciencesSun Yat-sen UniversityGuangzhou 510275GuangdongChina College of Continuing(Online)Education Sichuan Normal UniversityChengdu 610068SichuanChina Central South Inventory and Planning Institute of National Forestry and Grassland Administration Changsha 410014HunanChina

A new species,Amolops pallasitatus *** described based on specimens collected from Chentang Town,Dinggyê County,southern Tibet,*** new species can be distinguished from other known congeners by mitochondrial divergence and morphological characteristics including:(1)medium body size,SVL 70.6–72.3 mm in adult females;(2)skin smooth over the entire body;(3)absence of dorsolateral fold;(4)tympanum small,edge indistinct,less than half of eye diameter;(5)vomerine teeth in two short oblique;(6)circummarginal and transverse grooves absent on disk of the first finger;(7)presence of inner metacarpal tubercle;(8)toes fully webbed,webbing formula Ⅰ0-0^-Ⅱ0-1/2Ⅲ0-1^+Ⅳ1^+-0Ⅴ;(9)absence of outer metatarsal tubercle and tarsal glands;(10)tibiotarsal articulation of the hind limb reaches posterior corners of the eye;(11)dorsum yellow-green,with irregular dark brown blotches without margins;(12)blotches concentrated on the dorsum,less on the *** morphology,Amolops pallasitatus *** similar to *** and ***,the difference between them is length of hind limbs,web of toe and dorsal colour *** systematic placement of the new species within the genus is unresolved and it is not assigned to any recognized species group,for the lack of convictive evidences.

关键词： Amolops pallasitatus sp.nov. mitochondrial morphology unknown species group torrent frog

大长度高压直流电缆中电荷的产生、测量及释放研究综述

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四川电力技术 2024年第1期47卷 50-58页

作者：王洁铭刘巧珏崔智桐蔡致坤胡武生南京航空航天大学自动化学院江苏南京211106 台达电子企业管理(上海)有限公司上海201209 上海华为技术有限公司上海201206 国电南瑞科技股份有限公司江苏南京211100

碳减排作为能源转型的核心驱动力之一,能够有效促进清洁能源发展,缓解全球温室效应。在全球能源互联网发展的背景之下,用于长距离、跨地区输电的大长度直流电缆在电力互联网中占据着重要地位。同时,直流电缆工作时间较长,维护工作较为困... 详细信息

碳减排作为能源转型的核心驱动力之一,能够有效促进清洁能源发展,缓解全球温室效应。在全球能源互联网发展的背景之下,用于长距离、跨地区输电的大长度直流电缆在电力互联网中占据着重要地位。同时,直流电缆工作时间较长,维护工作较为困难,而电缆中又不可避免会出现电荷积累问题,其中的残余电荷将威胁电缆的安全运行,降低电缆的使用寿命,甚至可能造成电缆故障。因此,有必要对大长度直流电缆的电荷问题开展相关研究。从直流电缆中电荷的产生、测量和释放3个方面进行概述,总结了近年来相关研究中的热点问题,对未来热门研究方向给出参考。所做研究对大长度直流电缆的在线监测和寿命评估均具有重要的指导意义。

关键词：高压直流电缆老化空间电荷表面电荷

海峡两岸融合发展的会展活动驱动机理与路径研究

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龙岩学院学报 2024年第3期42卷 62-68页

作者：魏仁兴王德文贺静刘芷彤陈华福建商学院福建福州350012

两岸融合作为多主体协同的实践活动,会展活动成为其重要动力之一。会展活动通过构建广泛平台和制定诱导机制,促进两岸会展共同体的建立,有利于突破融合障碍,实现民心融合。两岸关系与会展资源的有限性开放相互契合,共同驱动两岸命运共... 详细信息

两岸融合作为多主体协同的实践活动,会展活动成为其重要动力之一。会展活动通过构建广泛平台和制定诱导机制,促进两岸会展共同体的建立,有利于突破融合障碍,实现民心融合。两岸关系与会展资源的有限性开放相互契合,共同驱动两岸命运共同体与会展活动共同体的和合发展。会展组织与自组织功能的融合,为两岸合作提供深层次动因。因此,通过多维度策建会展平台,设立不同议题的会展活动,匹配相应台湾地区民众群体,推动两岸交流与合作,进而促进两岸融合发展;构建全通道两岸交流动力机制,消除沟通壁垒,发挥会展活动在两岸融合中的重要作用,对推动两岸关系发展具有重要意义。

关键词：两岸融合会展活动驱动机理自组织功能

山西绛县西吴壁遗址铜冶金活动面的土壤化学成分研究

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文物季刊 2024年第3期 140-147页

作者：潘博华叶之童田伟林俊伶刘思然北京科技大学科技史与文化遗产研究院中国国家博物馆考古院

绛县西吴壁遗址是二里头至二里岗时期重要的铜冶金生产遗址。2023年发掘过程中在遗址东部发现了一组二里头时期的原生活动面,为研究西吴壁遗址冶金技术与空间格局提供了重要材料。本研究对各活动面进行了系统取样,利用其化学组分的含量... 详细信息

绛县西吴壁遗址是二里头至二里岗时期重要的铜冶金生产遗址。2023年发掘过程中在遗址东部发现了一组二里头时期的原生活动面,为研究西吴壁遗址冶金技术与空间格局提供了重要材料。本研究对各活动面进行了系统取样,利用其化学组分的含量和空间分布对各活动面的性质进行了研究。研究结果显示,上部的活动面1和活动面2中的部分区域具有较高的CuO含量,可能与铜冶炼活动直接相关,下部的活动面3和活动面4则不见高CuO区域,且整体成分与遗址生土样品接近,表明其现存部分可能与铜冶炼活动不直接相关。活动面1和活动面2上还存在高P2O5、Fe2O3、CaO,高MgO和高SiO2区域。本研究通过梳理以往研究中上述化学组分与人类活动的对应关系,对其与西吴壁遗址铜冶金活动的关联进行了分析。

关键词：西吴壁遗址活动面铜冶金土壤 XRF

复合活化对废弃混凝土再生微粉活性的影响及机理研究

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新型建筑材料 2024年第1期51卷 29-33,69页

作者：马稚童高敏郭启龙陈业照杨然汪造璇西北民族大学土木工程学院甘肃兰州730124 甘肃省新型建材与建筑节能重点实验室甘肃兰州730124

再生微粉具有潜在活性,可作为辅助性胶凝材料取代水泥,但活性低限制了其应用。采用物理-化学复合活化方法激发再生微粉的活性,研究了活化再生微粉的活性指数、力学性能和微观形貌。结果表明:随着研磨时间的延长,胶砂的抗压、抗折强度先... 详细信息

再生微粉具有潜在活性,可作为辅助性胶凝材料取代水泥,但活性低限制了其应用。采用物理-化学复合活化方法激发再生微粉的活性,研究了活化再生微粉的活性指数、力学性能和微观形貌。结果表明:随着研磨时间的延长,胶砂的抗压、抗折强度先提高后降低;当研磨时间为4 h时胶砂试块的28 d抗压强度为28.6 MPa,28 d活性指数为64.3%。采用物理-化学复合活化时,当研磨4 h且掺加1%Na2SO4+1%Ca(OH)2激发剂时,胶砂28 d抗压强度为35.2 MPa,28 d活性指数达到79.1%,再生微粉的活性显著提高。

关键词：再生微粉物理-化学复合活化力学性能活性指数水化产物显微结构

Nitrogen starvation induces genome-wide activation of transposable elements in Arabidopsis

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Journal of Integrative Plant Biology 2022年第12期64卷 2374-2384页

作者： Yue Wang Yi Liu Shaofeng Qu Wenjie Liang Linhua Sun Dong Ci zhitong Ren Liu-Min Fan Weiqiang Qian State Key Laboratory of Protein and Plant Gene Research School of Advanced Agricultural SciencesPeking UniversityBeijing 100871China School of Life Sciences Peking UniversityBeijing 100871China Peking University Institute of Advanced Agricultural Sciences Weifang 261000China

Nitrogen(N)availability is a major limiting factor for plant growth and agricultural *** the gene regulation network in response to N starvation has been extensively studied,it remains unknown whether N starvation has an impact on the activity of transposable elements(TEs).Here,we report that TEs can be transcriptionally activated in Arabidopsis under N starvation *** genetic screening of idm1-14 suppressors,we cloned GLU1,which encodes a glutamate synthase that catalyzes the synthesis of glutamate in the primary N assimilation *** found that glutamate synthase 1(GLU1)and its functional homologs GLU2 and glutamate transport 1(GLT1)are redundantly required for TE silencing,suggesting that N metabolism can regulate TE *** and methylome analyses revealed that N starvation results in genome-wide TE activation without inducing obvious alteration of DNA *** analysis indicated that N starvationinduced TE activation is also independent of other well-established epigenetic mechanisms,including histone methylation and heterochromatin *** results provide new insights into the regulation of TE activity under stressful environments in planta.

关键词： DNA methylation glutamate synthase nitrogen starvation transcriptional gene silencing transposable element

侯爱画治疗肿瘤化学疗法毒副作用的辨证用药经验

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上海中医药杂志 2024年第1期58卷 52-56页

作者：刘泽秘智彤谭松孟鹏王承祥侯爱画山东中医药大学第一临床医学院山东济南250355 莱州市中医医院肿瘤科山东烟台261400 烟台市中医医院肿瘤科山东烟台264001

介绍侯爱画教授治疗肿瘤化学疗法毒副作用的辨证用药经验。其应用扶正护膜汤治疗骨髓抑制;基于“五脏六腑皆令人呕”理论,灵活辨治恶心、呕吐;运用白及、乌梅、海螵蛸、瓦楞子护膜制酸,引火汤、吴茱萸引火归元治疗消化道黏膜损伤;采用... 详细信息

介绍侯爱画教授治疗肿瘤化学疗法毒副作用的辨证用药经验。其应用扶正护膜汤治疗骨髓抑制;基于“五脏六腑皆令人呕”理论,灵活辨治恶心、呕吐;运用白及、乌梅、海螵蛸、瓦楞子护膜制酸,引火汤、吴茱萸引火归元治疗消化道黏膜损伤;采用养肝疏肝相结合缓解肝毒性;以益气养血和营为法,内服外洗并施减轻外周神经毒性;善用乌芪汤治疗皮肤瘙痒。

关键词：肿瘤化学疗法毒副作用骨髓抑制消化道反应中医药疗法

Discovery of the Early Paleozoic post-collisional granites in northern margin ofthe Erguna massif and its geological significance

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Chinese Science Bulletin 2005年第23期50卷 2733-2743页

作者： WU Guang SUN Fengyue ZHAO Caisheng LI zhitong ZHAO Ailin PANG Qingbang LI Guangyuan College of Earth Sciences Jilin University Changchun 130026 China Shenyang Institute of Geology and Mineral Resources Shenyang 110032 China Institute of Mineral Resources Chinese Academy of Geological Sciences Beijing 100037 China

The Luoguhe intrusion, located in MoheCounty, Heilongjiang Province, is mainly composed of mon-zogranite, quartz diorite and granodiorite, with minor dio-rite, tonalite, quartz monzodiorite, quartz monzonite, syeno-granite and alkali-feldspar granite. The intrusion can bedivided into two lithological units, i.e. quartz diorite andmonzogranite units, with affinities to high-K calc-alkalineseries. The quartz diorite unit (SiO2: 54.79%―58.30%Na2O/CaO: 0.79―1.53 and Shand index: 0.77―0.82) belongsto metaluminous rocks. And the monzogranite unit (SiO2:65.29%―66.45%, Na2O/CaO: 1.73―3.43 and Shand index<1.05) can be considered as weakly peraluminous rocks. Theintrusion is characterized by high REE abundance (∑REE =180.2―344.3 μg/g), medium-strong negative Eu anomalies(δ Eu = 0.33―0.82), weak REE fractionation [(La/Yb)N =4.12―10.45], enrichments in Rb, Th, U, K, La, Ce, Nd, HfZr and Sm, but strong depletions of Ba, Nb, Ta, Sr, P and TiThese characteristics of major, REE and trace elements in-dicate that the intrusion was formed in a transitional tectonicsetting from compressional to extensional regime, which canbe classified as post-collisional granitoids. SHRIMP U-Pbzircon analyses yield ages of 517±9 and 504±8 Ma for thequartz diorite and monzogranite units, respectively. The dis-covery of Early Paleozoic post-collisional granites in thenorthern margin of the Erguna massif indicates that thenorthern branch of Paleo-Asian Ocean between Siberianplate and Erguna massif was closed in the Early Paleozoicand the Salair orogeny ended ca. 500 Ma ago.

关键词：花岗岩 U-Pb测年早古生代地球化学地质学

A 2DEG back-gated graphene/AlGaN deep-ultraviolet photodetector with ultrahigh responsivity

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Chinese Physics B 2020年第12期29卷 542-546页

作者： Jinhui Gao Yehao Li Yuxuan Hu zhitong Wang Anqi Hu Xia Guo School of Electronic Engineering State Key Laboratory of Information Photonics and Optical CommunicationsBeijing University of Posts and TelecommunicationsBeijing 100876China

A graphene/AlGaN deep-ultraviolet(UV)photodetector is presented with ultrahigh responsivity of 3.4×105 A/W at 261 nm incident wavelength and 149 pW light power.A gain mechanism based on electron trapping at the potential well is proposed to be responsible for the high *** optimize the trade-off between responsivity and response speed,a back-gate electrode is designed at the AlGaN/GaN two-dimensional electron gas(2DEG)area which eliminates the persistent photocurrent effect and shortens the recovery time from several hours to *** 2DEG gate is proposed as an alternative way to apply the back gate electrode on AlGaN based devices on insulating *** work sheds light on a possible way for weak deep-UV light detection.

关键词： graphene/AlGaN deep-ultraviolet high responsivity photodetector