张家界市永定区土家族传统药用植物资源的民族植物学调查研究

应用民族植物学常用的文献研究法、实地调查法、资料的核实与整理方法对张家界市永定区土家族传统药用植物资源进行调查和研究,共调查到该区有土家族药用植物110种(归属于49科),其中野生的有92种,栽培的18种.这些药用植物主要分布在路边(34种)、山地(27种)、湿地(11种)等生境.张家界市土家族传统医药药用植物的命名、功效、应用形式和方法具有鲜明的民族特点.这些特点的形成与特殊的自然环境和人文历史文化等有关.目前张家界市土家族传统药物主要存在资源的破坏和文化的流失等问题.针对这些问题,笔者提出了对现有的药物资源进行科学的系统的调查收集整理、建立相关的民族植物保护机构和保护区等建议.     

湘西土家族药用植物资源开发与生物多样性保护

本文通过综述湘西生态环境状况和土家族医药文化的基础上,对湘西土家族药用植物资源开发和利用现状进行分析.同时,列举了当地土家医生在医疗实践中常用消除人体热毒与冷毒的药用植物19科中植物的药用部位、药性功能和使用方法.随着当地民族医药的兴起,应极其小心的防止对自然药物植物资源过多的获取,这些会导致生物多样性丧失的加快,甚至导致某些物种灭绝.最后,就该地区土家族药用植物资源开发的可持续发展提出了相应的生态学保护对策和措施.     

德夯风景区的药用植物资源

德夯风景区产药用植物893种，本文根据民族植物学理论，用湘西土家族对药用植物12类分类方法[2]，介绍了德夯一些重要的药用植物。     

民族植物学与湘西药用植物资源开发

在简述湘西自然和民族医药文化的基础上，对湘西药用植物资源及其开发利用研究现状做了概括，并就民族植物学在湘西药用植物资源开发利用研究中的重要作用做了阐述，认为民族植物学研究能为湘西药用植物资源开发提供理论指导，并能促使湘西民族医药走向世界.     

贵阳市野生药用植物资源调查——以贵阳花溪国家城市湿地公园为例

采用野外考察、照相、标本采集、分类鉴定与资料收集相结合的方式对贵阳市花溪国家城市湿地公园区域内的野生民族药用植物资源进行了调查研究,基本掌握了该区域内的野生民族药用植物的种类、药效功能及分布情况.结果表明:该区域内现有196种民族药用植物,属于78个科.根据中医理论基础、民间及临床用药按它们的药用功效可分为13类.结论:贵阳市花溪城市湿地公园区域内的野生民族药用植物种类繁多、具有一定的代表性,可以在保护好资源的前提下进行合理的开发利用.     

湖北省大别山地区常见野生药用植物资源调查

为研究和开发民族野生药用植物资源,实地调查了湖北省大别山地区常见野生药用植物资源并对其进行了物种鉴定;报道了其中30种药用植物的主要药用经验和资源概况.调查结果表明:夏枯草、龙牙草、鱼腥草、紫苏、费菜以及鸡眼草、截叶铁扫帚、白马骨等资源极其丰富;提出了加强近缘药用植物品质的比较研究、保护优质野生中药材资源以及重点研究开发应用野生中药材等必要性.     

土家族民间文艺知识的开发及其利用

民间文艺知识是传统知识的重要组成部分,土家族有着丰富的民间文艺知识,这些知识是构成民族乡土文化资源的宝贵财富。开发和利用土家族的民间文艺知识,对提高民族的文化自觉意识,保护民族民间非物质文化遗产具有重要的现实意义。从土家族民间文艺知识的文化创新与利用、乡土教育中的开发与利用、产业化开发与经济利用等三个方面进行论述;同时,就民间文艺知识开发和利用过程中,存在的一些对文化资源的误用、盗用和滥用等不良现象进行反思。开发和利用土家族的民间文艺知识,必须要重视知识的"本真性",只有回归了知识的"本真性",激活了"民间"这块有机的土壤,提高了民族的文化自觉意识,土家族民间文艺的开发和利用才能可持续,才会焕发出勃勃生机。     

云南德宏州园林景观药用植物的民族植物学研究

对云南德宏州园林景观药用植物资源进行调查,了解在园林景观中药用植物的情况,为德宏州民族药物文化保护提供一定的依据.利用民族植物学的方法对调查的药用植物从当地名、基源、用药部位、主要功效进行编目整理工作,共鉴别出122种植物,隶属68科.对德宏州园林景观药用植物在医学中利用方法异于传统使用方法进行了比较,对园林景观药用植物中药食两用药物进行了统计,分析了药用植物在德宏州园林景观中的应用方法,结合德宏州园林景观中应用药用植物存在的问题提出了改进的建设性意见.     

武陵山区南部药用植物资源调查——以湖南省通道侗族自治县为例

本文通过大量的野外调查、标本采集和鉴定,对湖南省通道侗族自治县的药用植物资源现状进行了调查研究,结果表明通道侗族自治县共有药用植物103科249属299种.同时对其种类组成、功能主治和用法用量等进行了编目记录,对其药用植物的民族和区域的特点进行了分析,并对其开发利用提出了建议.     

贵州平坝县药用植物种质资源调查研究

通过调查研究,基本整理出了平坝县药用植物种质资源的种类、药用功能及民族用药情况,为平坝县药用种质资源开发利用和产业规划等提供科学依据。采用野外考察、标本采集、分类鉴定与资料收集相结合。现有药用植物种质资源745种,其中23种为新资源,7种为国家保护植物或药用保护植物,199种为少数民族用药42种为民间用药。平坝药用植物种质资源种类丰富,民族药种类丰富,应在保护的前提下,进行合理的开发利用。     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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