捷联系统中陀螺仪数据采集器的设计

针对捷联惯怀系统中陀螺仪的动态测量范围很宽的要求,设计了一种高精度,宽量程的数据采集器,该系统由采集板,多功能板和通讯监听、纠错单元三部分组 用双口ＲＡＭ实现现场数据采集与远程导航计算机的高速通讯,可靠性好,解决了捷联惯性系统中数据采集传输与姿态运算的时间冲突问题。     

用动态链接库（DLL）实现并口高速数据采集

在虚拟仪器系统开发中,设计制作了以计算机打印口（并行口）为接口的数据采集板,用VC＋＋编制动态链接库（DLL）完成采集板驱动,并在LabWindows/CVI环境中调用DLL实现数据传输,同时就编制DLL时出现的问题进行了说明。     

一类新型微机远方终端的设计

对基于工业控制计算机的远方终端装置设计进行研究．将工业ＰＣ机用于远方终端装置;利用交流采样方法将智能Ａ／Ｄ板和智能Ｉ／Ｏ板用于远方数据的采集;用Ｃ语言完成系统主程序设计．给出一种已研制成功的新型的基于ＰＣ机的远方终端装置．结论为基于ＰＣ机的远方终端装置,可以减少硬件系统和软件编程的复杂性,增强了系统的当地监视控制与数据采集（ＳＣＡＤＡ）功能,该系统设计思想可以用于电力系统和其他工业控制系统的远动数据采集．     

基于AD7705电子计价称的设计

本设计以微控器AT89C52为核心控制部件;系统硬件由单片机最小系统板、人机交互界面、数据采集三大部分组成．数据采集模块主要由CZL-6D型压力传感器和AD板两部分组成．系统实现称重、单价输入和计算总价的功能．整机系统结构较简单,使用方便,功能较全,精度高,具有一定的开发价值．     

等温输油管实验装置的改进

通过对原有等温输油管实验装置的改进，研制了一套基于PC机的，由压力传感器、温度传感器、流量计、A／D转换板、计算机组成的通用数据采集系统，增加了事故工况过程的演示，为等温输油管实验课的改革提供了技术支持。     

军用飞机每飞行小时直接维修工时(DMMH/FH外场级)指标定量评估

通过对外场维修数据采集方案的合理设计与具体的数据收集和分析工作，研究了军用飞机的维修性参数－－每飞行小时直接维修工时指标的定量评估方法。就如何保证外场维修性数据采集的充分性和有效性，对数据的统计处理方法做了简要论述。结合某歼击机的数据数据，给出了采用计算机进行数据处理的结果“勺形曲线”，该曲线揭示了军用飞机上述参数的统计值发展变化所遵循的基本规律。     

基于Windows98的电阻温度特性测试系统

目前P4CPU主板成为主流，P4主板上已不再有EISA接口槽，原来基于EISA槽的接口卡已不能使用。为此设计了基于并行打印接口的外围控制电路，首先由程序控制编码器编码，然后由专用解码芯片解码，从而实现通道转换。计算机通过标准RS－232串行接口同智能万用表和智能数字温控表通信，组成热敏电阻阻温特性曲线测试系统，由智能温控表进行控温，由智能万用表进行数据采集。程序由VISUALC 6.0语言编写，数据处理程序可供新老用户使用。     

新型自动扫描控制和数据采集的微波成像装置

采用矩形开口波导作为传感器 ,建立对成像样品板进行自动扫描控制和数据采集的微波成像装置 .采用计算机数字图像处理技术将采集到的数据进行二维处理 ,大大提高了分辨率     

RMS700监测保护系统的数据管理系统

介绍了一种基于德国飞利浦公司ＲＭＳ７００监测保护系统二次开发而成的计算机数据采集和管理系统。它兼有高速振动数据采集和其他热工数据采集功能，并能实现在线监测及离线分析处理。该系统的核心包括测试信号用快变信号箱、慢变信号箱，高速锁相倍频数据采集板，低速数据采集板以及ＴＭＳ３２０Ｃ２５快速ＦＦＴ板等，最终以高可靠Ｉｎｔｅｌ工控机来管理。该系统用户界面友好，菜单简明易操作，已成功地在北京石景山发电厂连续运行将近一年。对该系统稍加改动就可以移植用于管理美国本特利公司的７２００或３３００仪表，或是构成独立的监测系统。在系统中加入故障诊断软件后，也可构成故障诊断系统     

焊接电弧计算机动态测试与分析系统

为研究焊接电弧瞬态过程,设计了以计算机（ＰＣ）为基础的焊接电弧动态测试与分析系统．该系统由符合ＩＢＭ－ＰＣ总线标准的计算机数据采集卡和面向对象的Ｗｉｎｄｏｗｓ应用程序相结合,实现对焊接电弧瞬态过程各物理量的实时检测和多任务分析．     

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.     

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.     

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.