一种基于SNMP实现MIB库多变量访问的方法

提出了一种基于ＳＮＭＰ的客户机端软件中实现ＭＩＢ库多变量访问的方法，据此方法在ＨＰ３０００／７１５工作站ＨＰ－ＵＸ上开发的相应网络管理系统软件中的基模块－ＮＭＳＳ实现了对ＭＩＢ数据库中多变量的访问，即可根据网络管理用户的要求，动态地收集各异种网络设备ＭＩＢ库中的多变量统计数据，以掌握网络当前的各层状态，从而进一步实施网络管理的各项功能。     

数字式交流伺服系统的一种自动加减速控制方法

本文针对ＴＤＭ０４Ａ高速ＣＮＣ钻铣床数字式交流伺服进给驱动系统高速性能的要求，提出了使用硬件逻辑器件构成位置脉冲自动加减速控制的方法，完成了基于ＩＢＭ－ＰＣ机的自动加减速控制接口电路的研制，从而简化了由单微机构成的交流伺服驱动系统控制软件的结构，加快了微机数据处理速度，提高了机床进给系统的运行速度。     

钎焊计算机辅助教学软件

介绍了在ＩＢＭ－ＰＣ系列微机上采用Ｃ语言编程，并与中西文数据管理系统、ＦｏｘＢａｓｅ和绘图软件系统ＡｕｔｏＣＡＤ接口开发的钎焊计算机辅助教学（ＣＡＩ）软件，该软件有很强的数据管理功能和丰富的图形显示功能，融教学、测试、辅助设计、数据库为一体，是一套实用的教学辅助系统。     

一种实用最简A／D电路及注意事项

ＡＤ５７４是ＡｎａｌｏｇＤｅｖｉｃｅｓ公司生产的具有微处理器接口的快速１２６ｂｉｔＡ／Ｄ转换器，它以优良的性能价格比受到青睐，结合作者水泥厂项目经验，介绍它在ＩＢＭ－ＰＣ机上的应用方法及注意事项。     

二阶电路等幅振荡及其角频率测定

从理论和实验上进一步讨论，如何利用连续可调标准电感器实现二阶电路的等幅振荡，并通过ＨＰ３５６２Ａ动态信号分析仪精确定量测试等幅振荡的幅值和角频率。     

HBU－EMIS网络通信中两个问题的分析及处理技术

本文叙述了ＨＢＵ－ＥＭＩＢ网络通信中，分布处理所涉及的各工作站ＰＣ节点通信的并发控制，及在ＤＢＡＳＥⅢ下直接进行通信处理的分析和技术两个问题。     

BCI—代数的链复形

本文引入了ＢＣＩ－代数的链复形及链映射的概念，从而定义了范畴ＢＣＩ－ＣＣ，讨论了这个范畴的一些性质，如具有零对象，积的存在和积的万有性质等，还得到了范畴ＡＳ－ＢＣＩ－ＣＣ是一个Ａｂｅｌ范畴，并且指出了本文的一些结果可相应地用于对合群、幂集和对称差代数及Ｂｏｏｌｅ代数。     

用IBM－PC机的打印口控制步进电机

介绍了一种特别适合于初学者应用的简易的步进电机控制线路及编程方法，它不需要另作接口电路，只是利用ＩＢＭ－ＰＣ机已有的打印机输出口。     

大红枣试管苗生根及移栽的研究

大红枣无根试管苗在不同种类，不同浓度生长素以及在两种生长素不同配比的综合作用下生根的数量和质量不同。ＩＢＡ和ＮＡＡ的生根效应相同，合适的浓度均为０．４×１０－６。ＩＢＡ０．２×１０－６＋ＮＡＡ０．２×１０－６能够有效地提高生根质量。ＩＢＡ０．２×１０－６浸泡移栽基质和ＩＢＡ５００×１０－６蘸根１５～２０ｍｉｎ两种扦插方法都能促进生根成活。在选择试管苗的移栽基质方面，以森林腐殖土∶砂＝３∶１（体积比）或锯沫效果较好     

液态金属离子源与聚焦离子束的研制进展

为了适应大规模集成器件制作工艺发展的需要，开展了液态金属离子源（ＬＭＩＳ）和聚 焦离子束（ＮＢ）的研究。研制成针型、同轴针型与毛细管型的镓与金ＬＭＩＳ，Ａｕ－Ｓｉ、Ａｕ－ Ｓｉ－Ｂｅ与 Ｐｄ－Ｎｉ－Ｓｉ－Ｂｅ－Ｂ三种共晶合金型 ＬＭＩＳ：研究了带有控制栅极的 ＬＭＩＳ的控 制性能；编制了计算聚焦离子枪所需的程序；制成三种型式的聚焦离子枪并获得０．１μｍ 直径的聚焦离子束；制成扫描离子显微镜（ＳＩＭ）；初步开展了刻蚀试验。     

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.     

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.     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.