广义不确定性系统概念及其基本原理

给出了包含自然系统和人为系统的复合系统定义．以及确定性系统、不确定性系统的定义．论述了随机系统、模糊系统、粗糙系统、灰色系统、未确知系统、泛灰系统的内涵;进而引入了广义不确定性系统的概念,它涵盖了复合系统和广义泛灰系统．论述了广义不确定性系统的7个基本原理：给出了广义不确定性系统的基本结构,为综合研究客观存在的各类系统奠定了理论基础．     

汽车电控系统维修的实践与思考

汽车电控系统包括发动机电控系统、自动变速器电控系统、制动防抱死系统、安全气囊系统、电控悬架系统、电控动力转向系统、自动空调系统等,文章对这几大系统的维修作了一些探讨.     

人体系统动力学模型研究

该文主要讨论了人体系统模型,包括人体系统的物质模型、力学模型、数学模型和信息模型.重点讨论了人体系统的动力学模型基础理论,内容涉及人体系统的连续动态系统、离散动态系统、人体系统的随机性、自组织、人体系统的简单巨系统、复杂巨系统等诸多基础问题.     

阅读智力活动的特点、系统和条件

阅读智力活动具有间接性、再现性、受制性、综合性等特点；阅读智力活动系统由认读系统、信息加工系统、理解系统、感受系统、吸收系统、审美鉴赏系统等系统构成；阅读智力活动的必要条件是感性经验、理性经验、情感体验和广博的知识。     

浅析通信电源设备的运行安全

通信电源系统是对通信局站各种通信设备及建筑负荷等提供用电的设备和系统的总称。主要由备用发电系统、高压供电系统、变压器系统、不间断电源系统、后备电源系统、直流系统、接地防雷系统以及动力环境监控系统等多个子系统组成。通信离不开电源,通信电源是通信的保障,所以保证通信电源系统的安全运行,对保证通信系统的畅通乃至通信的安全有着积极的意义。     

系统科学发展及其前景

系统科学以复杂的大系统为研究对象,系统科学发端于20世纪20年代。系统工程的应用十分广泛,工程系统、社会系统、经济系统、农业系统、企业系统科学技术管理系统、军事系统、环境生态系统等等。它将比牛顿力学、相对论力学、量子力学更深刻、更广泛、更普遍,所以这种研究将会对科学产生极为深远的影响。     

科技博览

<正>2020年前后我国将建成运营载人空间站2020年前后,我国将建成和运营载人空间站,作为空间科学和新技术研究试验的重要基地。据了解,载人空间站工程包括航天员系统、空间实验室系统、空间站系统、运载火箭系统、载人飞船系统、货运飞船系统、发射场系统、测控通信系统、回收着陆场系统和空间应     

基于网络通讯的设备信息化系统

本文介绍的系统是一个基于网络通信(包括以太网络通信和485总线通信)的设备数据采集和监控系统。本系统主要由服务器、以太网络、上位机监控系统、485总线网络、设备数据采集及通信系统和系统管理对象组成。本系统是集数据采集、网络通信、嵌入式系统、数据库、高级编程语言程序设计等技术于一体的综合系统。     

光纤通信在水库安监系统中的应用

稳定、可靠、高速的通信网络是水库安全监控系统顺利、平稳运行的基础和保障。大坝安全监测系统、闸门监控系统、视频监视系统等应用系统构建于其上。该文着重介绍山美水库安监系统中建设光纤通信系统的必要性和重要性,以及系统结构、系统链路和系统设备选型。     

NSRL二期工程中束流测量系统的改造

介绍了NSRL二期工程中束流测量系统的改造，包括DCCT测量系统、闭轨测量系统、基于束流准直系统、工作点测量系统、光位置测量系统和200MeV直线加速器能谱测量系统．这些测量系统为合肥光源的运行调试和机器研究提供了有效的手段．另外，还给出了这些系统的应用和测量结果．     

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.