四川牛羚的分布

四川牛羚的分布魏辅文，胡锦矗四川师范学院生物系四川动物１９９３，１２（３）：３２～３３分析了目前牛羚的分布格局及其原因，并提出了相应的保护措施。目前四川有３８个县有牛羚分布。分布区跨越６个山系：岷山山系、邛崃山系、相岭山系、凉山山系、大雪山、沙鲁里山...     

卧龙自然保护区的脊椎动物

前言卧龙自然保护区是我国以保护卧龙自然生态系及大熊猫、金丝猴、牛羚等珍稀动物为目的的重点自然保护区,又是国际科研机构的协作单位。1980年1月正式列为联合国国际生物圈保护区,同年6月我国同世界野生生物基金会签署了协定:在卧龙自然保护     

我国特产动物——羚牛

羚牛也叫牛羚,是我国特产的大型珍贵动物,名列一类保护动物名单之中。因其成体的犄角向内扭曲,所以又叫扭角羚。羚牛主要产于陕西、甘肃、云南、四川等地。由于稀少。所以国外动物园至今没有展出过。羚牛外形短粗,四肢强壮有力。成体一般数百斤,重者     

我院二位教授荣获国家级有突出贡献的专家称号

我院珍稀动植物研究所所长、大熊猫专家胡锦矗。多年来从事大熊猫等珍稀动物的研究,成绩显著,在国内外享有很高的声誉,荣获国家级有突出贡献的专家称号。他的主要科研成果有《四川省野生珍稀动物资源调查报告》、《大熊猫、金丝猴、牛羚生态生物学研究》、《四川资源动物志》等。这些成果曾获全国科学大会奖。近年与美国     

大熊猫金丝猴等珍稀动物生态生物学研究

前言大熊猫、金丝猴和牛羚等是我国特产的或主要产于我国的珍贵稀有的动物。有的堪称为活化石,有的被誉为国宝,闻名于世界,早为世界各国所关注。这些珍贵稀有动物早在第四世纪以前,它们还是数量较多的,分布也较广泛。大概到了距今约三百万年的第四纪,冰川的袭击使很多动物大量灭绝,唯独四川省西部和横断山脉高山深谷地带,成了它们的“避难所”,辛存为演化的孑遗,现已濒临危及。一些国际组织和国际公约也都公认我国这些稀有动物急待保护,并已列为国际保护对象。建国以来我国政府已采取了一系列有效的措施,保     

夜窥牛羚——自然保护区访问之二十一

夜,漆黑,还下着毛毛细雨.刚出门的时候,我们还开着玩笑:"小心今天夜里黑瞎子来掏被窝!"当我们背着睡袋,真正走上夜路的时候,这种浪漫主义的感情就被一种威慑的气氛所代替了.左边是魆影憧憧的危崖,右边是奔腾咆哮的唐家河.怕鬼吗?不是.怕野兽吗?有一点.总怕前头和牛羚狭路相逢,几百公斤重的庞然大物,还带着尖锐的扭角,就是轻轻顶撞一下,也是凶多吉少;后头又怕狼爪搭在肩上,等我回头,刚好咬住我的脖子.理智     

对策论中平衡的稳定性

本文论述一般n人非协作对策平衡的稳定性问题。文中引入了本质平衡点、本质对策和几乎本质对策的概念,并证明了对策空间中的每一对策都能够由本质对策或几乎本质对策作任意逼近。     

重复模糊合作对策的核仁

在重复模糊合作对策的基础上,对合作对策的核仁进行了推广,建立了重复模糊合作对策的核仁的概念,给出了重复模糊合作对策的核仁与核心、稳定集之间的关系,并讨论了重复模糊合作对策的核仁的特征和性质。     

浅谈龙潭河大桥高墩施工测量控制

阐述了龙潭河特大桥工程概况，针对影响施工测量精度的主要因素，介绍了采取的主要对策，包括应对日照温差的对策、应对大气对流影响的对策、应对施工偏心荷载的对策等，列举了测量控制的施工技术。     

关于多个模糊集对策的合成对策

以模糊结盟为工具研究的是模糊集对策的合成问题，这里的模糊结盟是指向量d∈[0，1]^n，d的第i个分量di表示局中人i在模糊结盟中的参与程度，而模糊集对策是对经典集对策的一种推广。定义了模糊集对策的分配集、优超和解集合一稳定集，稳定集是满足内部稳定性和外部稳定性的分配集的子集，给出了多个模糊集对策的合成对策，它推广了J．Von Neumann和O、Morgenstem于1944年提出的和一合成对策，最后应用反证法证明了合成对策的稳定集可以通过其子对策的稳定集表达出来。     

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.     

A computer generator for randomly layered structures

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

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。     

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.