集约化养猪场冲栏水的达标处理

采用厌氧ＡＢＲ反应器与好氧－缺氧ＩＣＥＡＳ反应器串联工艺处理养猪场冲栏废水,在无外加碱度条件下,由于进水中的碱度不够补偿硝化过程中碱度的消耗,而使ＩＣＥＡＳ反应器中的ＰＨ降低至５．５左右,严重抑制了硝细菌和亚硝化细菌的活性,导致了ＮＨ＾＋４－Ｎ的去除率小于６０％,出水中ＮＨ＾＋４－Ｎ的浓度为６００ｍｇ／Ｌ左右,无法达到排放标准。在外加ＣａＣＯ３（３．９ｇ／Ｌ）的条件下,ＮＨ＾＋４－Ｎ的浓度为６００     

甘蓝型油菜萝卜质不育系恢复材料Ad—6（F4）测交二代恢？…

油菜萝卜胞质不育系恢复材料Ａｄ－６（Ｆ４）测交二代恢复株ＴＣＦ２,在ＭＳ附加５ｍｇ／Ｌ ６－ＢＡ＋０．５ｍｇ／Ｌ ＮＡＡ,３ｍｇ／Ｌ,６－ＢＡ＋０．２ｍｇ／Ｌ ＮＡＡ,３ｍｇ／Ｌ ６－ＢＡ｜０．３ｍｇ／Ｌ ＮＡＡ＋６００ｍｇ／Ｌ水解５ｍｇ／Ｌ－６－ＢＡ＋０．３ｍｇ／Ｌ ＮＡＡ＋５ｍｇ／Ｌ ＡｇＮＯ３对ＴＣＦ２诱导丛生芽有较好的效果。     

氟离子对声致发光的影响

本研究首次观察到在水溶液中溶解有Ｃｌ＾－,ＮＯ３＾－,Ｆ＾－,ＨＣＯ３＾－和ＳＯ４＾－五种阴离子时,只有Ｆ＾－在浓度高于４．０ｍｇ／Ｌ时会对声致发光产生影响,当在４．０ｍｇ／Ｌ￣２．０ｍｇ／Ｌ范围内改变Ｆ＾－的浓度,声致发光强度随Ｆ＾－浓度的增加而下降,Ｆ＾－的引入使得空化区域的低温等离子体的形成变为可以控制。     

聚苯胺膜的阴离子交换特性

聚苯胺掺杂电位区（０．２－０．７Ｖ）循环状安图能反映在聚苯胺膜内阴离子特性，Ｃｌ＾－、ＣｌＯ＾－４、ＳＯ＾－２４和ＮＯ＾－３等简单阴离子在膜内可通过电位循环交换。Ｆｅ（ＣＮ）＾３－６／４＾－氧化还原型阴离子可掺入膜内，而呈明显的氧化还原峰（电位０．５，０．４Ｖ），聚苯胺膜可富集和分离Ｆｅ（ＣＮ）＾３－４／４＾－离子。对氨基苯酸磺基团阴离子，在正电位下，可与带正电荷骨架膜静电吸引，还可能有某种不可…     

TS—1沸石合成过程中模板剂用量对钛进入骨架的影响

以ＴＰＡＢｒ为模板剂、ＮＨ３．Ｈ２Ｏ为碱源，水热条件下合成了ＴＳ－１沸石，采用ＸＲＤ、ＩＲ、ＵＶ－Ｖｉｓ、＾２９ＳｉＣＰＭＡＳＮＭＲ、＾２７ＡｌＣＭＡＳＮＭＲ、＾１３ＣＣＰＭＡＳＮＭＲ等表征手段详细研究了模板剂不同用量对钛进入骨架的影响。     

紫外光度法测定废水中叠氮根含量的研究

该文介绍了应用紫外分光光度法测定废水中叠氮根离子含量的一种新方法，在缓冲溶液ＫＨ２ＰＯ４－ＮａＨＰｏ４介质中，有表面活性剂Ｎ－氯代十六烷基吡啶存在时，Ｎ３＾－与ＣＳ２反应的产物ＣＳ２Ｎ３＾－在３２１ｎｍ波长处有吸收峰，峰高与Ｎ３＾－离子浓度在０．５￣６．０ｍｇ／Ｌ范围内呈线性关系，因此可用紫外分光光度法对Ｎ３＾－含量进行测定。该方法简单，实用，抗干扰能力强，测定下限为０．５ｍｇ／Ｌ，可以用于起爆药     

部分取代苯定量结构-生物降解相关性(QSBR)研究

采用Ｃｈｅｍｓ３Ｄ中量子化学ＭＯＰＡＣ－ＡＭ１法计算了７种间苯胺类和８地苯酚的分子量高占有轨道能ＥＨＯＭＯ、分子最低空轨道能ＥＬＵＭＯ。用ＱＳＡＲ程序软件包查得分子体积Ｖｍ。结合分子连接性指数（＾３Ｘ,＾３Ｘ＾ｖ）对生物降解二级速率常数对数ｌｇＫｂ进行定量结构－生物降解相关性（ＱＳＢＲ）分析,通过回归分析,得到如下两个回归方程：ｌｇＫｂ＝－０．８３２－０．１１８Ｖｍ＋１．７４８＾３Ｘ＾ｖ,ｎ＝１５,Ｒ＾２＝０．８３２,ＳＥ＝０．５７７,Ｆ＝２９．７,ｐ＝０．０００。（１）ｌｇＫｂ＝０．１２４Ｖｍ＋１．７４９＾３Ｘ＾ｖ,ｎ＝１５,Ｒ＾２＝０．９９８,ＳＥ＝０．５５９１,Ｆ＝４１４８．９９,ｐ＝０．０００．（２）     

Cl-和SO2-4对厌氧废水处理的抑制阈值

用人工配制高浓度有机废水分别研究了Ｃｌ＾－和ＳＯ４＾２－对厌氧生物废水处理的抑制作用和抑制阈值。在全混流厌氧恒化器和上流式厌氧污泥床（ＵＡＳＢ）反应器中分别得到了对厌氧消化基本无抑制作用（全混流恒化器：Ｃｌ＾－〈４．５ｇ／Ｌ,ＳＯ４＾２－〈１．８ｇ／Ｌ;ＵＡＳＢ：Ｃｌ＾－〈７．２ｇ／Ｌ,ＳＯ４＾２－〈３．０ｇ／Ｌ）;轻度抑制（全混流恒化器：Ｃｌ＾－＝４．５￣６．０ｇ／Ｌ,ＳＯ４＾２－＝１．８￣３．     

牛蛙脑膜炎（歪脖子病）病原分离及防治技术研究

牛蛙脑膜炎（歪脖子病）病原分离及防治技术研究叶雪平，杨广智，罗毅志（浙江省淡水水产研究所，湖州３１３００１）ＡＳＴＵＤＹＯＮＴＨＥＰＡＴＨＯＧＥＮＡＮＤＴＥＣＨＮＩＯＵＥＯＦＰＲＥＶＥＮＴＩＯＮＯＦＥＣＮＥＰＨＡＬＩＴＩＳＯＣＣＶＲＥＤＩＮＣＶＬＴＵ...     

DISCOVERY OF MICROFOSSILS FROM THE 1848－MA－OLD CHANGZHOUGOU FORMATION，JIXIAN SECTION，NORTH CHINA

ＤＩＳＣＯＶＥＲＹＯＦＭＩＣＲＯＦＯＳＳＩＬＳＦＲＯＭＴＨＥ１８４８－ＭＡ－ＯＬＤＣＨＡＮＧＺＨＯＵＧＯＵＦＯＲＭＡＴＩＯＮ，ＪＩＸＩＡＮＳＥＣＴＩＯＮ，ＮＯＲＴＨＣＨＩＮＡＺｈａｎｇＺｈｏｎｇｙｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＥａｒｔｈＳｃｉｅｎｃ...     

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