艾灸溯源

阐述了中医灸法的基本概念、源流、特色、发展脉络与兴衰以及在民族医药中的应用,探讨了艾灸的作用机制,论述了艾灸在当代社会的应用现状与发展方向,认为作为中医基本疗法艾灸值得发扬光大.     

蕲艾燃烟化学成分的GC-MS分析

为试图找到更多对治疗疾病有效的成分,采用了苯-甲醇与正丁醇2种溶剂分别萃取蕲艾燃烟,利用GC-MS分析,分别得到了25与31个可鉴定结构的化学成分,主要为脂肪烃、芳香烃与萜类化合物及其氧化物,其中有13个结构相同.可能分别来自于蕲艾的不完全燃烧产物、蕲艾挥发油及其氧化产物.     

蕲春县蕲艾产业发展现状及对策分析

通过企业参观、问卷调查和采访等方法取得蕲春县蕲艾产业数据并进行了分析,反映了蕲春县蕲艾产业的发展现状及存在的产业发展制约问题.对当前制约艾产业发展的因素提出了有针对性的意见及建议,以期推动蕲艾产业快速发展.     

蕲艾油对尿酸的增溶作用

通过紫外光谱和高效液相色谱研究了蕲艾油对尿酸的增溶作用，探讨了蕲艾油治疗痛风病的作用机制。实验结果表明：在人体正常体温37℃下，蕲艾油可使尿酸溶解度提高1倍左右，且随着蕲艾油浓度增大尿酸的溶解度增大。     

蕲艾总鞣酸对羟自由基和超氧阴离子自由基的清除作用

通过Fenton反应产生OH,连苯三酚自氧化产生O2-.模型,研究了蕲艾总鞣酸体外清除自由基作用.结果显示:蕲艾总鞣酸在1.0~10.0 mg/mL范围内对羟自由基和超氧阴离子自由基均具有清除作用,两者均呈现明显的量效关系,最有效的清除浓度均为8.0 mg/mL,清除自由基能力均高于同等浓度的甘露醇,但低于同等浓度的抗坏血酸.     

硫酸铵盐析在蕲蛇毒凝血酶样酶分离中的应用

探讨了硫酸铵沉降对蕲蛇毒中凝血酶样酶的初步分离效果的影响 ,确定出最佳处理条件 :2 .0 %的蕲蛇毒在pH 5 .0及 4 5 %饱和度的硫酸铵溶液中盐析沉降蕲蛇毒中非凝血酶样酶杂蛋白 ,上清液即为所分离的凝血酶样酶组分     

湖北蕲春九棵松野生蕲艾群落基本结构

通过α-多样性指数研究了蕲春九棵松野生蕲艾的群落基本结构。结果表明:该蕲艾居群面积约为15~20 m~2,植株数约25株左右,盖度仅为3%,为小居群。主要有10科13属13种植物与蕲艾相伴生。蕲春九棵松野生蕲艾群落的群丛名为刺槐+尖头青竹+野菊花。α-多样性指数分析表明蕲艾群落辛普森指数(D)、香农威纳指数(H′)和Pielou均匀度指数(J)分别为0.867、2.180和0.850。人为干扰和过度采集是影响该野生蕲艾居群恢复更新的重要原因。     

梅花针(磁疗)艾灸器在祛病养生中的作用

中国传统的针灸疗法,包括针灸和艾灸.针刺又分为刺入人体内的针灸和不刺入人体内的梅花针(又称为皮肤针).笔者发明研制的梅花针艾灸器(梅花针磁疗艾灸器)是根据中医理论,将针刺、艾灸(磁疗)相结合的实用新型的针灸器具,有温经通络、补气助阳、活血化瘀、消肿止痛的治疗作用.本研究的梅花针艾灸器产品已获国家专利.     

不同燃烧温度下艾灸补泻机制研究

目的:研究艾灸的补法和泻法机制.方法:运用艾炙温度测量仪,测定无风条件下、不同风力、不同风向、不同储存年份条件下艾条最高燃烧温度的差异.结果:无风条件下,艾条最高燃烧温度为848℃;15cm距离、45°角吹风、三年期艾条最高燃烧温度最优,最高温度达到981℃,比无风条件下高133℃;无风燃烧情况下,燃烧温度较低,艾灸的功效表现为温补作用,主要适用于寒症患者;而吹风富氧情况下,燃烧温度大大升高,产生通透能力更强的近红外光辐射,进而实现疏通经络,治疗瘀症的温通效果.意义:解释了艾灸补法和泻法的作用机制,为临床艾灸选材及手法选择、艾灸理疗仪器改进、制定市场评价标准提供理论参考.     

中医灸法选择艾叶作为灸材的机理研究

从艾叶的易得性、易燃性、燃烧稳定性、燃烧的高温与高热性、药性作用与易成型性6个方面探讨了中医灸法为什么选择艾叶作为灸材这一灸法基本问题.认为这种选择有其必然性也有偶然性,正是这一选择使中医艾灸成为集热疗、光疗与药疗于一体,同时调动人体嗅觉、痛觉与炎性反应治疗疾病、保持健康的综合疗法,推动了中医的发展,值得发扬光大.     

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.     

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.     

A computer generator for randomly layered structures

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

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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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。     

Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

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