1993年3月19日SN／C5．6级耀斑的二维光谱分析

利用南京大学太阳塔的ＣＣＤ二维成像光谱观测系统，于１９９３年３月１９日得到了一个ＳＮ级耀斑区域的Ｈα光谱资料．由线心强度分布显示，该耀斑带有三个明显发射区，它们的形态、结构、演化情况都不同；而线翼呈现明显的红不对称性．基于Ｈα谱线的红不对称性，我们导出了两维色球速度场，结果发现不同区域具有不同速度，有的区域向下最大速度可达３０～４０ｋｍ／ｓ，而有的区域只有１０ｋｍ／ｓ左右；此外，色球物质向下运动的持续时间也不等，有的仅约１ｍｉｎ，而有的长达６ｍｉｎ之久．最后我们还证实了红不对称性仅发生在线翼，而线心几乎无位移．     

中国满洲里—绥芬河地学断面地震学研究

满洲里－绥芬河地学断面域地震学研究表明：沿断面可划分额尔古纳－大兴安岭、松辽盆地－张广才岭和佳木斯－兴凯三个波速块体;纵向上地壳分为三层,地壳厚度２９￣３８ｋｍ;Ｐ波平均速度６．２５￣６．４０ｋｍ／ｓ;松辽盆地沉积盖层较厚,基底面下方附近低角度断层发育;Ｍｏｈｏ面厚度１．５￣５．０ｋｍ,内部结构复杂;上地幔低速层埋深差异较大,松嫩块体埋深最浅;深源地震频度高、强度大、震源深,浅源地震相对较少和较弱     

陕西省鹿类动物的数量估计和资源保护与利用问题的探讨

通过７４个样方共５５．１７ｋｍ２，分别对陕西分布的４种鹿类动物中的３种的种群数量进行了调查，借助数理统计学方法，对其资源贮存量进行了估计．结果表明，林麝（Ｍｕｓｃｈｕｓｂｅｒｅｚｏｖｓｋｉ）１９８５年的密度是２．４９±０．３７只／ｋｍ２，秦巴山区的资源估计贮存量为８５２００±１０４００只；１９８３～１９８４年黄麂（Ｍｕｎｔｉａｃｕｓｒｅｖｅｓｉ）的密度为９．８０±０．７５只／ｋｍ２，安康地区１０县黄麂资源存量为６４７００±４９００只，年种群自然增长率为３５％，适宜猎取量为１３０００～１４０００只；陕北黄土高原狍（Ｃａｐｒｅｏｌｕｓｃａｐｒｅ－ｏｌｕｓ）１９７６年的密度为６．０２±０．８３只／ｋｍ２，资源贮存量为８１２００±１１２００只．１９８１年狍的密度为５．０９±０．６１只／ｋｍ２，资源存量为６８７００±８２００只，狍的年种群自然增长率为３８％，适宜猎取量为１２０００～１５０００只．文中对陕西省鹿类动物资源的保护、管理和利用进行了探讨．     

木聚糖降解菌的筛选和木聚糖酶性质的研究

筛选两株生长快、产木聚糖酶活力高的菌种；黑曲霉（Ａｓｐｅｒｇｉｌｌｕｓｎｉｇｅｒ，ＡＮ０１）、链霉菌（Ｓｔｒｅｐｔｏｍｙｃｅｓｓｐ．Ｓｔｒ７Ｂ），酶活力分别达１２８ｍｇ／Ｌ·ｍｉｎ和１７６ｍｇ／Ｌ·ｍｉｎ；酶反应最适温度分别为６０℃与５０℃；最适ｐＨ值为５．０和６．０，并分别在ｐＨ２．２～５．０，５．８～６．４酶活性稳定；在６０℃条件下保温１．５ｈ，酶活力分别剩余２０．５％，８８．５％，其中ＡＮ０１株原酶液在９０℃保温１０ｍｉｎ，活力仍剩余１４．５％．Ｃｕ２＋对酶活表现出极强抑制，Ｆｅ２＋，Ｍｇ２＋，Ｃａ２＋等离子则有促进作用；用纸层析法探讨了不同培养时间各种产物产生的情况．     

华荠薴中的黄酮类化合物

从华荠（ＭｏｓｌａｃｈｉｎｅｎｓｉｓＭａｘｉｍ）中分离鉴定了６种黄酮类化合物，经光谱分析及化学方法鉴定为：５－羟基－６，７－甲基黄酮；５，７－二羟基－４＇－甲氧基黄酮；洋芹素；鼠李柠檬素；桑色素－７－Ｏ－β－Ｄ－葡萄糖甙；山奈素－３－Ｏ－β－Ｄ－葡萄糖甙．均为首次从该植物中分得．     

苏云金杆菌SD－5菌剂对豆天蛾的防治研究

利用ＳＤ－５菌剂对豆天蛾系统地进行了室内毒力测定，不同龄期敏感性试验，对卵的毒力试验，田间药效试验，示范及推广。结果：孢晶混合物和纯化晶体感染３龄虫７２ｈＬＣ５０分别为３．０２×１０￣６个孢晶／ｍｌ和１．８６×１０￣６个晶体／ｍｌ，且晶体致死速度较快；不同龄期的幼虫对ＳＤ－５菌剂敏感性有一定差异，小龄虫更为敏感。喷施ＳＤ－５菌剂对豆天蛾卵的孵化无明显影响，但孵出的幼虫４８ｈ内死亡率高达９１．６％～１００％；田间小区试验ＳＤ－５０．５亿／ｍｌ防效为９１．７％，优于７２１６；大田示范推广１２５．４８ｈｍ￣２．防效达９２．３５％～９８．７３％；ＳＤ－５防区内天敌种类和数量明显高于化防区。     

快速凝固熔融金属取样器的研究

研究了一种快速凝固的熔融金属取样器；其冷却速度可达１０５Ｋ／ｓ，凝固速度达６７．６ｍｍ／ｓ，传热系数达１０５（Ｗ·ｍ－２·Ｋ－１）．该装置能够实现在现场或实验室的熔融金属中不同部位抽取液淬．     

一种喜温蓝藻的培养条件

从厦门杏林湾温泉分离到一种喜温蓝藻Ｓｙｎｅｃｈｏｃｏｃｃｕｓｅｌｏｎｇａｔｕｓｖａｒ．ａｍｐｈｉｇｒａｎｕｌａｔｕｓＣｏｐｅｌａｎｄ（Ｓ．ｅｌｏｎｇａｔｕｓＴ３）．测定了该蓝藻的培养条件．培养基ＢＧ－１１以ｐＨ７．５为宜，若添加１．２ｍｍｏｌ／Ｌ的碳酸氢钠对该蓝藻生长有利；接种量控制在接种后培养液中的细胞密度２×１０６ｃｅｌｌ／ｍＬ较好；适於生长的培养温度和光照强度分别为５５℃和２５００Ｌｘ．经计算，这种蓝藻的细胞倍增时间为６．９ｈ．     

苏皖交界地区蛋白石硅岩热水沉积地球化学特征

产于凹凸棒石粘土矿层中的硅岩具有特征的沉积构造，ＳｉＯ２含量高（７７．９２～８９．４４％），Ｕ／Ｔｈ＞１、Ｚｎ、Ａｓ、Ｓｂ等元素含量高，稀土总量低（４．５×１０－６～１６．５５×１０－６）。稀土配分型式及氧稳定同位素组成与热水沉积硅岩一致，推算形成温度为７１℃～８１℃。上述特征表明硅岩为热水沉积产物，亦说明在苏皖凹凸棒石粘土矿床形成过程中存在有热水事件。     

反相高效液相色谱法测定补肾益寿颗粒中淫羊藿甙的含量

应用反相高效液相色谱法，建立了测定纯中药制剂补肾益寿颗粒中活性成分淫羊藿甙含量的方法．样品以７０％乙醇超声波振荡提取，在下列色谱条件下测定：固定相ｓｈｉｍｐａｃｋＣＬＣ－ＯＤＳ（１５０ｍｍ×６ｍｍ，５μｍ）；流动相乙腈甲醇－０．１ｍｏｌ／Ｌ磷酸二氢钠（６∶４６∶５０，ｖ／ｖ）；流速１．０ｍｌ／ｍｉｎ；检测波长２７０ｎｍ；线性范围０．１１５～０．６９０μｇ（ｒ＝０．９９９９）；加样回收率９９．０８±１．７６％；日内精密度１．０５％～１．１９％．该法简便、快速、准确     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

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.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

A computer generator for randomly layered structures

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

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.