机电创意实验的探索与实践

利用德国慧鱼公司的大型工业模型作为开发机电创意实验的教具,使学生了解了机电设备和自动化生产线的基本组成与工作原理,了解了有关光电传感器技术及机电设备及生产流水线的控制方式,大大提高了学生的工程实践能力、综合设计能力和创新能力。     

应用慧鱼模型实现创新性开放实验的模式探索

利用慧鱼创意组合模型进行开放性实验,对于培养大学生的创新设计能力和动手能力是一条有效的途径。本文介绍了利用慧鱼模型实现开放性实验的设置模式和实验室仪器的高效管理模式,为探索教育改革的新方法拓宽了方向。     

慧鱼创意组合模型在个性化教育中的应用

根据本科生个性化教育的目标,结合机械设计制造及自动化教学实际情况,在机械专业本科生中使用慧鱼创意组合模型进行个性化教育的实践,使用引进的慧鱼创意组合模型实现了模型学习、模型改进和创意模型三个阶段,使学生提高了创新意识和水平,提高了动手能力,初步具备了机电一体化产品的设计开发能力。总结了使用慧鱼创意组合模型的成果,指出了培养过程中存在的问题,并给出了相应的对策。     

一种新的DSS中模型复合方法研究

复合模型是一种解决复杂决策问题的有效方法.首先讨论了决策支持系统(DSS)中复合模型的三种基本形式,然后提出了一种新的模型复合方法即在模型分类驱动技术产生模型链的基础上,利用黑板结构参数匹配算法实现复合模型的求解,并详细分析了求解过程和求解算法.实践表明:该方法最大优点是可操作性强,而且支持决策问题求解的智能化程度比较高.     

慧鱼实验系统的二次开发

慧鱼组合模型能够模拟各种机械运动及机械设备的自动控制,是很好的机电一体化的实例.本文介绍了通过对慧鱼组合模型进行二次开发,使其控制系统的编程从采用图形模块编程转换到采用编程语言编程的意义及实现方法.     

初中动物学黑版教学插图的运用

在生物学教学中,常使用活生物、实物标本、模型、挂图、卡片、切片、幻灯、立体镜、电影、电视以及黑板画等教学手段进行直观教学,当学生人数较多,使用实物不便或模型太小,又缺乏某些必要的教具时,教师就应当使用黑板插图去辅助直观。黑板插图有时还     

基于多智能体技术的复杂零件数控编程系统研究

根据复杂零件数控编程的分布式智能决策的设计需要,建立了一种基于多智能体技术的复杂零件数控编程系统模型.该模型开发了多个Agent系统,使用一个管理智能体通过黑板机制使每一个智能体能够与黑板通信,智能体之间在黑板上进行信息分享与协作.研究表明,应用多智能体技术设计的复杂零件数控编程管理系统能降低数控编程的复杂性和提高数控编程的效率.     

开设实验机器人设计训练的探索与实践

实验教学是培养学生创新能力的重要途径,针对机电一体化专业的学生,开设了<实验机器人设计>课程,利用慧鱼模型尝试了新的教学方法,使学生的设计思想以物化的形式表现出来,取得了较为理想的教学效果.     

BIM技术在道路与桥梁工程设计中的应用综述

从建筑信息模型（Building Information Modeling,BIM）建模参数化与智能化、地形与地质三维建模关键技术、BIM与有限元分析软件交互关键技术、基于BIM的多专业正向协同设计等方面,对BIM技术在道路与桥梁工程设计中的应用现状进行了综述和分析,研究结果表明：（1）BIM模型参数化建模及智能化需要通过融合设计经验共识和规范设计流程实现;（2）地形、地质模型创建智能化和精细化程度较低,模型融合困难,极需开展相关实现方法研究;（3）BIM模型与有限元分析模型不能精准转换,需要研究BIM与有限元计算模型交互关键技术;（4）实现角色、设计环境和设计资源的深度融合,是开展基于BIM多专业协同设计的发展方向。BIM技术是解决道路与桥梁工程复杂问题的有力支撑,但是仍然不成熟。基于BIM技术进行深度开发,是实现数字化信息表达、数据交互以及项目管理的有效途径。     

基于慧鱼组件的新型立体车库模型设计

设计了一种适用于城市小区的新型立体车库。首先总结了国内外在该领域的发展现状,分析现有装置的设计思路及其优缺点,形成了设计思想,并且明确了设计目标;然后进行了库存装置的总体设计,运用Visio和SolidWorks三维建模工具,绘制了装置的图纸及概念模型。为检验库存装置设计的可行性,选择了慧鱼组件搭建装置模型;模型分为传动模块、存放模块、机械臂模块三大部分,通过相互之间的配合,并辅以测控系统完成装置的设计目标;最后,对装置模型进行了测试,记录并解决了在测试时遇到的问题。     

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.     

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.     

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.     

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。     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-