面向动态联盟协商支持系统的研究

基于一种半集中式的协商控制策略，提出一个面向动态联盟的协商过程模型，按时间将协商过程划分为协商准备，协商进行及事后处理三个主要阶段。并在此模型上构建了一个基于CORBA标准和DMAS（分布式多Agent系统）技术的协商系统框架。盟员企业的推理，决策和协商功能以Agent形式进行封装，多方协商由多个分布式Agent实现。而不同环境下Agent之间的通信是通过构建在CORBA平台上的组件来实现。为实现动态联盟盟员企业之间的协商提供了一个可行的解决方案。     

基于博弈论的多Agent协商模型

在开放、动态、具有自适应性和自治性的多Agent系统(MAS)中,协商是多Agent系统实现协调、协作和解决冲突的关键．博弈论是使用严谨的数学模型研究冲突条件下最优决策问题的理论,本文以此为数学工具,基于对时间的限制,结合协商的历史知识,考虑各协商者在拥有不完全信息的情况下,提出了基于博弈论的多Agent协商模型(GTMANM),并给出了协商策略求解的算法描述,用以来解决分布式环境下不完全信息的多人协商决策问题,以获得最大的期望收益,为以后把博弈论中其他更复杂的博弈思想引入到多Agent协商中来奠定了基础．     

基于角色交换的多Agent协商问题的研究

利用角色与Agent之间的动态性刻画多Agent系统的结构和行为模型的特点,针对在协商过程中相互协作的Agent如何结成具有相对稳定的合作领域的问题,对角色进行形式化描述,提出了基于角色交换的多Agent协商角色交换算法。该算法能在不完全信息的环境下,提高多个Agent之间的协商效率;并以模拟足球赛为平台进行实验,结果证明该算法是可行有效的。     

基于记忆模型学习的商务Agent协商设计

将基于记忆模型学习和Agent结合起来应用到商务协商过程,可在一定程度上促进机器学习、Agent技术及电子商务的共同发展。将Agent技术引入到记忆模型学习中,给出了基于记忆模型学习的商务Agent协商的设计思路,完成了记忆模型、协商协议的设计,并搭建实验系统平台,设计了原型系统,经过实验可以在嵌入式移动设备上实现商务协商,从而验证了该协商的有效性。     

基于Agent的供应链协商模型

首先从多Agent和单一Agent的角度对供应链环境下协商要素进行了分析。在此基础上,结合供应链管理中协商特点,提出了一个通用协商模型。在该模型中给出了一个灵活的协商协议,并对Agent的决策模型进行了分析。     

基于Agent协商的语义Web服务知识模型

在面向服务的应用中引入语义协商的思想,使服务Agent能够在Web服务部署、发布、发现和组合过程中共享服务知识.并且具有足够的自治和理解能力.通过描述抽象和具体的语义Web服务以及分析服务Agent之间的交互过程,提出了适合协商的服务Agent和服务知识模型,并给出了服务Agent之间信念知识修正和更新的方法,形式化描述了协商过程中服务Agent的角色和行为以及针对服务属性的语义协商协议.实验结果表明,在服务发现过程中使用这种服务知识模型及语义协商交互协议,能够显著改善服务Agent的理解能力.随着部署的具体服务数和协商的服务属性数增加,返回服务发现结果的时间有所延长,但其精确度有了明显的提高.     

协同环境下基于客户满意度的协商模型

针对网络化制造环境下产品设计的特点,分析了客户满意度在产品设计中的重要性.将客户满意度应用到协同设计环境下的协商机制中.按照协同设计环境下产品设计的要求建立了在产品协同设计过程中客户满意度的指标体系,并以此建立了满意度数学模型.采用多Agent技术,建立基于客户满意度的协商Agent模型并分析了协商过程.结合企业实际需求,利用BP神经网络对客户满意度的评估进行了训练和仿真,通过神经网络减少评价过程中的人为因素,提高了评价的可靠性.同时验证了基于BP神经网络的客户满意度协商模型的有效性.     

面向代理的车间动态调度方法

针对车间动态调度缺乏有效方法的现状.建立了车间动态调度的数学模型.将车间组元定义为多个独立的代理(Agent),并将蚁群在觅食过程中通过释放信息素的方式进行交流与合作的行为,应用到Agent之间的协商与通信中,建立了Agent之间的协作模型,形成了基于多代理协商的动态调度方法.仿真试验对比表明.基于多代理协商的车间动态调度方法优于基于遗传算法的动态调度方法.     

基于Multi-Agent的公路仿真系统框架

为了建立公路仿真系统对公路设计的合理性进行评价，研究了公路仿真系统结构问题。公路仿真系统是连续变量动态系统和离散事件动态系统相互作用的混杂系统，通过分析公路仿真系统的特征，建立基于Multi-Agent理论的公路仿真系统框架。将系统划分为3类相互作用的A-gent，即反应Agent、合作Agent和界面Agent，给出了适合公路仿真特点的Agent元定义，建立了各Agent的协商模型，并对其运行机制进行了讨论。该仿真框架的建立，从软件工程的角度解决了仿真过程中混杂性的问题，对于合理设计仿真系统结构具有重要作用。     

基于历史信息和时间约束的多Agent协商模型

协商是多Agent系统(Multi-Agent Systems:MAS)实现协调、协作和冲突消解的关键环节.如何在不完全信息的情况下构造有效的协商模型来提高Agent的协商能力,是多Agent系统研究中占有重要地位的问题之一.通过考虑历史信息和时间约束的情况下,讨论了多Agent多问题的协商类型,提出了基于历史信息和时间约束的协商模型(HTANM)和协商算法,为多Agent能进行自动协商奠定了一定的基础.     

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.