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STUDIES ON ANIONIC CYCLOPOLYMERIZATION

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Chinese Science Bulletin 1966年第3期24卷 125-127页

作者：冯新德洪啸吟 Department of Chemistry Peking University

Cyclopolymerization has recently been developed as a specialized type of polymerization for nonconjugated diene monomer to form ring-containing ladder polymer. The free radical cyclopolymerization of 2,6-substituted 1,6-diene was investigated extensively by Marvel et al. We have reported the free radical cyclopolymerization of 4-substituted l,6-diene and some 1,5-diene, and their possible reaction mechanism was then suggested. It should not escape our attention that cyclopolymerization of acrylic anhydride by peroxide initiators yields a soluble cyclopolymer with high molecular weight and the polymeric anhydride could be hydrolysed to yield polyacrylic acid with a higher degree of crystallinity than polyacrylic acid obtained by the usual polymerization techniques.

关键词： polymerization anhydride crystallinity monomer diene polymeric acrylic specialized ladder substituted

塔里木克拉通东北缘二叠纪镁铁质岩浆氧化物与硫化物成矿条件对比

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地质学报 2022年第12期96卷 4257-4274页

作者：徐文博张铭杰包亚文满毅李思奥王鹏兰州大学地质科学与矿产资源学院西部矿产资源甘肃省重点实验室甘肃兰州730000 新疆维吾尔自治区地质矿产勘查开发局第六地质大队新疆哈密839000

塔里木克拉通东北缘坡北、磁海等地二叠纪幔源岩浆活动形成了镍钴硫化物矿床和铁钴氧化物矿床,两者赋矿镁铁-超镁铁岩体的年龄相近(290~260Ma),主、微量元素和Sr-Nd-Hf同位素组成相似,分配系数接近的微量元素比值分布于相同趋势线,揭示... 详细信息

塔里木克拉通东北缘坡北、磁海等地二叠纪幔源岩浆活动形成了镍钴硫化物矿床和铁钴氧化物矿床,两者赋矿镁铁-超镁铁岩体的年龄相近(290~260Ma),主、微量元素和Sr-Nd-Hf同位素组成相似,分配系数接近的微量元素比值分布于相同趋势线,揭示两者岩浆源区相同,可能为俯冲板片流体交代的亏损地幔或软流圈地幔。两类矿床镁铁-超镁铁质岩中Co与Ni含量正相关,Co主要富集在基性程度高的岩石中;块状硫化物与磁铁矿矿石中Co与Ni相关性差,Co和Ni具有不同的富集机制,Co热液富集作用明显。北山镁铁-超镁铁杂岩体是地幔柱相关软流圈上涌,诱发俯冲板片交代的亏损岩石圈地幔发生部分熔融,形成的高镁母岩浆演化过程中经历壳源混染、硫化物饱和富集镍钴形成铜镍钴硫化物矿床,富铁母岩浆氧逸度高、富水,岩浆分离结晶磁铁矿、叠加热液作用富集钴,形成铁钴氧化物矿床。

关键词：成矿条件铜镍钴硫化物矿床铁钴氧化物矿床镁铁-超镁铁杂岩体塔里木克拉通东北缘

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青藏高原地区城乡虚拟水贸易格局与影响因素

地理学报 2020年第7期75卷 1346-1358页

作者：孙思奥王晶戚伟中国科学院地理科学与资源研究所北京100101 水利部规划计划司北京100053

青藏高原是亚洲水塔,其水资源与水生态环境保护意义重大。从虚拟水视角,研究青藏高原与外部的水资源贸易关系和影响因素,有助于理解该地区的水资源问题、制定虚拟水贸易策略、优化区域城乡水资源配置、保障亚洲水塔功能。依托2012年中... 详细信息

青藏高原是亚洲水塔,其水资源与水生态环境保护意义重大。从虚拟水视角,研究青藏高原与外部的水资源贸易关系和影响因素,有助于理解该地区的水资源问题、制定虚拟水贸易策略、优化区域城乡水资源配置、保障亚洲水塔功能。依托2012年中国区域间投入产出表成果,本文测算了青藏高原与中国其他区域之间的虚拟水贸易关系,建立了中国区域城镇与农村地区的虚拟水贸易网络,采用对数平均迪氏指数模型分析了青藏高原对其他区域虚拟水贸易不平衡的影响因素。结果表明,青藏高原向中国其他区域净输出虚拟水2.25亿m^3,其中向西南、华北、华中、华东、华南等5个区域净输出虚拟水,从西北和东北2个区域净输入虚拟水。城乡之间虚拟水贸易联系非常紧密,农村地区生产水足迹较高,而城镇地区由于人口密度较高、消费水平较高,是虚拟水最终消费的热点区域,青藏高原农村地区的虚拟水贸易量大于城镇地区的虚拟水贸易量。青藏高原贸易输出结构以农产品为主导,虚拟水净输出12.7亿m^3;青藏高原与其他区域贸易存在逆差,贸易量因素导致虚拟水净输入8.6亿m^3;用水效率在青藏高原与不同区域虚拟水贸易中的正负效应不一,总体带来青藏高原虚拟水净输入1.8亿m^3。未来,应重点通过灌溉节水减少农业水足迹,引导城镇居民向低水足迹生活方式转变,鼓励内地为青藏高原提供物质与技术支援,实行水资源生态补偿政策,以保护青藏高原水资源,促进区域水资源可持续利用。

关键词：虚拟水水足迹贸易网络青藏高原对数平均迪氏指数模型

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万历平播之役与战争书写的话语竞逐

文学遗产 2020年第1期 127-143页

作者：胡晓真台湾"中央研究院"文哲研究所

围绕着万历二十七年的平播之役,展开了多层次的战争书写,形成不同视角与叙事手法之间的话语竞逐。通过比较李化龙《平播全书》、郭子章《黔中平播始末》、瞿九思《万历武功录》、诸葛元声《两朝平壤录》与通俗演义《征播奏捷传》,可以... 详细信息

围绕着万历二十七年的平播之役,展开了多层次的战争书写,形成不同视角与叙事手法之间的话语竞逐。通过比较李化龙《平播全书》、郭子章《黔中平播始末》、瞿九思《万历武功录》、诸葛元声《两朝平壤录》与通俗演义《征播奏捷传》,可以观察官方记载、战争参与者的见闻纪录、当代的考察诠释,以及地方敷衍传说之间的交错,以探讨战争书写在明代文学中的表现。

关键词：平播之役郭子章战争书写

乡村振兴背景下古村落保护与活化研究——以大足玉峰村为例

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文化创新比较研究 2022年第19期6卷 101-106页

作者：龙彬路斯奥重庆大学重庆400044

古村落是我国农耕文明的产物,是我国传统文化与民俗文化的重要载体。在乡村振兴时代背景下,古村落的保护和活化也逐渐成为当下城乡建设领域的热门问题。该文通过辩证分析乡村振兴与古村落保护与活化的关系,并以重庆市大足区玉龙镇玉峰... 详细信息

古村落是我国农耕文明的产物,是我国传统文化与民俗文化的重要载体。在乡村振兴时代背景下,古村落的保护和活化也逐渐成为当下城乡建设领域的热门问题。该文通过辩证分析乡村振兴与古村落保护与活化的关系,并以重庆市大足区玉龙镇玉峰村为例,探究了乡村振兴视域下古村落的保护与活化利用策略,以期为古村落的保护与活化利用提供借鉴,为促进古村落可持续发展、保护乡土文化和地域文化提供新思路。

关键词：乡村振兴古村落保护与活化

Arabidopsis Synaptotagmin 2 Participates in Pollen Germination and Tube Growth and Is Delivered to Plasma Membrane via Conventional Secretion

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Molecular Plant 2015年第12期8卷 1737-1750页

作者： Hui Wang Shengcheng Han Wei siao Chunqing Song Yun Xiang Xiaorong Wu Pengyu Cheng hongjuan Li JAn Jasik Karol Micieta JAn Turna Boris Voigtt Frantisek Baluska Jin Liu Yingdian Wang Heping Zhao Beijing Key Laboratory of Gene Resource and Molecular Development College of Life Science Beijing Normal University Beijing 100875 China Department of Plant Cell Biology IZMB University of Bonn Kirschallee 153115 Bonn Germany School of Life Science Lanzhou University Lanzhou 730000 China Comenius University Science Park Comenius University Bratislava Mlynska dolina 842 15 Bratislava 4 Slovakia Department of Botany Faculty of Natural Sciences Comenius University Revova 39 811 02 Bratislava 1 SIovakia Department of Botany Faculty of Natural Sciences Comenius University Revova 39 811 02 Bratislava 1 Slovakia Institute of Botany Slovak Academy of Sciences Dubravska cesta 9 SK-84523 Bratislava Slovak Republic These authors contributed equally to this article. present address: Office of Teaching Affairs Handan University Handan 056005 China

Arabidopsis synaptotagmin 2 （SYT2） has been reported to participate in an unconventional secretory pathway in somatic cells. Our results showed that SYT2 was expressed mainly in the pollen ofArabidopsis thaliana. The pollen of syt2 T-DNA and RNA interference mutant lines exhibited reduced total germination and impeded pollen tube growth. Analysis of the expression of SYT2-GFP fusion protein in the pollen tube indicates that SYT2 was localized to distinct, patchy compartments but could co-localize with the Golgi markers, BODIPY TR C5 ceramide and GmManl-mCherry. However, SYT2-DsRed-E5 was localized to the plasma membrane in Arabidopsis suspension cells, in addition to the Golgi apparatus. The localization of SYT2 at the plasma membrane was further supported by immunofluorescence staining in pollen tubes. Moreover, brefeldin A treatment inhibited the transport of SYT2 to the plasma membrane and caused SYT2 to aggregate and form enlarged compartments. Truncation of the SYT2-C2AB domains also resulted in retention of SYT2 in the Golgi apparatus. An in vitro phospholipid-binding assay showed that SYT2-C2AB domains bind to the phospholipid membrane in a calcium-dependent manner. Take together, our results indicated that SYT2 was required for pollen germination and pollen tube growth, and was involved in conventional exocytosis.

关键词： synaptotagmins pollen germination calcium-dependent phospholipid binding C2 domains conventional secretion

Efficacy of Purple Non Sulphur Bacterium <i>Rhodobacter sphaeroides</i>Strain UMSFW1 in the Utilization of Palm Oil Mill Effluent

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Journal of Geoscience and Environment Protection 2019年第10期7卷 1-12页

作者： Sujjat Al Azad Foo siao Chin Mohammad Tamrin Bin Mohamad Lal Borneo Marine Research Institute University Malaysia Sabah Kota KInabalu Malaysia

Sustainable use of palm oil mill effluent (POME) has been the major focus in the recent development in palm oil industry due to the fact that environmental issue brought by POME. The purpose of this study was to determine the optimum incubation period of purple non-sulphur bacterium (PNSB) in reduction of chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP) in settled POME and to determine the dry cell weight, TN, TP and cell yield of PNSB. Pure isolate of Rhodobacter sphaeroides strain UMSFW1 was cultured in settled POME under anaerobic condition at 2500 lux illumination on light intensity at a temperature of 30°C ± 2°C for 144-h. Parameters such as COD (mg/L), dry cell biomass (g/L), TP (mg/L) and TN (mg/L) in settled POME and bacterial cells were analyzed. A total reduction of TN (43.9%) in settled POME and a total increase of TN (43.2%) in bacterial cell were recorded at the end of experiment. At the same time the reduction of 51.5% chemical oxygen demand was determined from the POME. The highest dry cell weight of 2.44 g/L with cell yield 0.39 (mg/cell/mg COD) was achieved at the end of experiment. A total 24.7% of TP reduction in settled POME was achieved in 144-h culture, but while a maximum 10% of TP in bacterial cell was achieved in 48-h culture. This study shows that PNSB Rhodobacter sphaeroides strain UMSFW1 grows well by using settled POME as substrate and is capable to remove TN in the settled POME and assimilate into bacterial biomass. This study could provide us a further insight in the nutrient removal and COD removal in the bioremediation process by bacterium Rhodobacter sphaeroides strain UMSFW1.

关键词： Purple Non-Sulphur Bacteria Palm Mill Effluent Chemical Oxygen Demand Nutrients and Growth

Telemedicine System Based on Medical Consultation Assistance Integration

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Journal of Software Engineering and Applications 2021年第10期14卷 537-548页

作者： Jhe-Wei Lin Cheng-Yan siao Rong-Guey Chang Mei-Ling Hsu Department of Computer Science and Information Engineering Advanced Institute of Manufacturing with High-Tech Innovations National Chung Cheng University Chiayi Department of Information Technology Ditmanson Medical Foundation Chia-Yi Christian Hospital Chiayi

With the aging of the global population, how to provide effective telemedicine for the aging population has become a very important issue, especially for the elderly with limited mobility. If there is a complete telemedicine system, it will not only greatly improve medical efficiency. It can reduce the chance of contact between people and avoid the medical risks caused by severe special infectious pneumonia. This paper focuses on the development of a high-efficiency telemedicine system platform that conforms to international standard data exchange formats. This system platform can not only solve the problem of shortage of medical staff but also allow patients to be free from medical outpatient time constraints. Achieve the effect of telemedicine at any time, and digitize the medical process rules to establish a complete online telemedicine system platform.

关键词： Telemedicine Medical Care System Fast Healthcare Interoperability Resources

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基于点云的弯曲地铁隧道断面提取

测绘通报 2023年第10期 80-84,122页

作者：徐景田单斯奥于睿涵吴磊陈刚中国地质大学(武汉)地理与信息工程学院湖北武汉430074 湖北省电力勘测设计院有限公司湖北武汉430040 国家石油天然气管网集团有限公司西气东输分公司武汉输气分公司湖北武汉430074

三维激光扫描技术已广泛应用于运营期地铁隧道变形监测工作。针对常用地铁隧道中轴线获取方法存在的问题与不足,本文基于地铁隧道点云高程差异,提取隧道拱顶点云并拟合曲线,采用拱顶轴线代替中轴线对弯曲地铁隧道断面进行连续提取。针... 详细信息

三维激光扫描技术已广泛应用于运营期地铁隧道变形监测工作。针对常用地铁隧道中轴线获取方法存在的问题与不足,本文基于地铁隧道点云高程差异,提取隧道拱顶点云并拟合曲线,采用拱顶轴线代替中轴线对弯曲地铁隧道断面进行连续提取。针对传统断面去噪过程复杂、效率低下等问题,改进一种基于隧道断面几何特征的半径滤波去噪算法,且对去噪后的断面点进行椭圆拟合对比。利用武汉某弯曲地铁隧道点云数据进行试验,结果表明,以拱顶轴线代替中轴线提取弯曲地铁隧道断面的方法精度可靠,改进后的断面去噪算法简单高效,能够提高隧道变形监测工作效率。

关键词：点云地铁隧道轴线断面提取半径滤波