基于人工智能的单片机软硬件仿真系统

将人工智能与仿真技术相结合，以单片机硬件电路为专家系统的知识来源，建立了单片机硬件配置专家系统，提出了较为完整的知识表示法和推理策略。通过知识库和推理规则实现了对单片机系统仿真硬件描述电路的合理配置，并建立了基于人工智能诊断方法以及专家经验的故障诊断专家系统。实践表明，该系统设计简单、功能完整，建立的基于数据库的故障专家系统，提高了纠错能力。     

一种通用型模糊环境智能故障诊断系统的实现

描述了基于模糊环境智能模型和专家系统知识推理的,可通用于工业现场大型设备机组的故障诊断与维护系统的设计思想和实现方法。系统构造以主要功能模块协同工作的模糊规则为设计主线,在此基础上,通过对规则的进化与更新来提高与完善系统的整体性能。针对知识库维护相对不便的问题,结合工业现场故障诊断的特点,详细介绍了专家系统诊断平台的系统框架、知识表示、推理方法和主要实现技术。实践结果表明,该系统运行效果良好。     

基于FTA的飞行模拟机故障诊断专家系统

将故障树分析法与故障诊断专家系统结合起来,提出了飞行模拟机故障诊断专家系统总体设计方案。构建了基于关系数据库的专家系统知识库。然后在此基础上设计实现了基于确定性和规则,具有深度优先搜索机制,进行反向推理的故障诊断专家系统。     

电视机故障诊断专家系统的研究

从电视机故障诊断的特点和建立电视机故障诊断专家系统时遇到的问题这两个方面，介绍了基于事例的推理在电视机故障诊断中的应用，并讨论了这个专家系统中知识的表达和组织、知识的获取及推理策略     

导弹测发控系统故障诊断模糊专家系统

目的　建立导弹测发控系统故障诊断模糊专家系统的基本结构,并给出一个具体的故障诊断实例; 方法　首先对导弹测发控系统的故障机理进行分析,进而研究基于模糊Ｐｅｔｒｉ网模型的故障诊断技术的应用,最后提出了本系统的设计思想和实现方法; 结果　建立了基于模糊Ｐｅｔｒｉ网模型的导弹测发控系统故障诊断模糊专家系统,该系统能对故障的模糊性和精确性知识进行统一描述和推理,并具有可修改性和可扩充性等优点; 结论　通过对某型导弹测发控系统配电分系统的故障诊断实例,说明了系统实现的可行性;     

专家系统在回转体零件CAPP中的应用

介绍回转体零件CAPP专家系统的基本原理及实现方法，就专家系统原理应用于工艺设计领域中的零件描述方法，知识表达，推理机制进行分析和探讨。     

城市公共交通智能调度专家系统的研究

根据城市公共交通调度、专家系统知识及模糊控制理论建立了公交智能调度专家系统。该系统采用案例与规则两级推理机制,通过产生式规则实现对知识的表达,应用关系型数据库实现对知识的管理与操作。案例推理中设计了代码与属性两层匹配的推理策略,针对实际调度中的不精确判断,根据模糊控制与模糊推理的思想设计了模糊规则与模糊推理策略实现了基于规则的推理。该系统对实现公交系统智能化、提高公交调度的质量和效率具有重要的意义。     

污水处理工艺系统的故障诊断专家系统

针对污水处理工艺过程所建造的故障诊断专家系统 ,讨论了对于单品种大批量连续生产类型工艺过程在故障诊断专家系统中的知识表达以及对于根据历史在线数据进行推理的诊断方法。     

污水处理工艺系统的故障诊断专家系统

针对污水处理工艺过程所建造的故障诊断专家系统,讨论了对于单品种大批量连续生产类型工艺过程在故障诊断专家系统中的知识表达以及对于根据历史在线数据进行推理的诊断方法。     

扩展产生式规则的网络故障诊断专家系统

根据自然语言理解和网络故障诊断专家系统的特性,提出了一种扩展产生式规则的知识表示方法.扩展产生式规则将规则的前提、结论和建议分别用概念图表示,是一种混合知识表示方法.在扩展产生式规则知识表示方法的基础上,设计出了网络故障诊断专家系统的模型.该系统具有自然语言接口,可将网络中有关故障问题的汉语语句转换成概念图;经过专家系统推理后,可将推理结果和推理过程转换成汉语输出.为了增强专家系统知识获取的灵活性,在系统中还增加了Apriori关联规则挖掘算法,通过对陷阱协议数据单元挖掘,实现在线知识获取.利用该系统模型已开发出网络故障诊断专家系统原型.     

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.