浅析认知负荷教学设计理论的问题

对认知负荷理论存在的一些问题进行了探讨,认为:①理清认知负荷与学习之间的关系,可探索影响工作记忆及调节认知过程的个体差异变量对认知负荷的作用;②澄清三种认知负荷的定义,可将其与教学目标相联系,并考虑先前知识、工作记忆容量和具体领域能力的个体差异,加强直接测量认知负荷的实证研究;③应该明确假设工作记忆的结构及其与认知负荷的关系,认知负荷的可加性假设也应建立在工作记忆不同的亚系统基础之上;④认知负荷研究应采用并接纳其他可提高外部效度的研究方法,并将其研究内容扩展到定义不良的学科领域.     

工作记忆对大学生心理理论的影响

采用运算一词汇广度任务和心理理论任务——Y0ni任务，研究了大学生的心理理论特点及工作记忆对其的影响．结果发现：女生的情感的心理理论显著高于男生；工作记忆与心理理论的各个成分（一阶、二阶情感的心理理论，一阶、二阶认知的心理理论）存在显著的正相关；进一步的回归分析表明，工作记忆可以显著地预测心理理论的各个成分．     

浅谈工作记忆与阅读推理的关系

工作记忆是影响语篇阅读推理的一个重要因素。在国内外相关文献研究和分析的基础上,论述了语篇阅读推理的主要模型和理论以及Baddeley工作记忆的模型,总结了工作记忆与阅读推理的关系。     

Baddeley工作记忆多成分理论模型研究发展综述

Baddeley的工作记忆理论模型包括语音回路、视觉空间画板两个附属系统和中央执行系统组成。其结构简单,理论框架可塑性强,被广泛应用于认知心理学、认知神经科学研究中。此后20余年有关工作记忆的研究也是围绕着该模型的三个成分系统的验证、完善而展开。     

城市交通容量中的竞争模型

本文利用微分方程稳定性理论，研究了城市交通容量中两种交通方式的竞争关系，它们适 合于根舍模型；证明了其解为非负的且趋向于某个稳定点；又对某城市的一组统计数据进行了 模拟，并指出了调整参数的实际意义。     

《大脑与认知》2004年—2007年工作记忆研究终述

对工作记忆的广度和容量的研究很多,本文阐述了几个观点：工作记忆中客体的呈现受过去经历的影响;情感的决定受工作记忆条件影响,高工作记忆条件下产生了一种＂目光短浅＂的决定风格;在时间判断任务中由于工作记忆过程的不同会产生的与年龄相关的差异。     

视觉搜索与视觉工作记忆的交互关系

视觉搜索与视觉工作记忆分别是注意理论与工作记忆模型中的研究焦点,它们之间的交互关系也是当前认知心理学中一个颇具争论性的问题：有的研究者认为视觉工作记忆影响视觉搜索,也有研究者认为两者之间存在着相互作用,还有的认为它们之间没有明显的交互影响。但总的来说,视觉搜索与视觉工作记忆存在着明显的交互作用,因为他们共享一个资源有限的视觉系统。     

路网服务水平约束下的路网容量模型探讨

本文基于笔者多年从事道路网设计的相关工作经验,以路网服务水平约束下的路网容量模型为研究对象,探讨了三种基于路网服务水平的路网容量模型,即路网储备容量模型、路网极限容量模型和路网实际容量模型,全文是笔者长期工作实践基础上的理论升华,相信对从事相关工作的同行有着重要的参考价值和借鉴意义。     

MIMO无线通信系统研究进展

MIMO技术是无线通信领域的重大突破，它能够极大地提高通信系统的容量和频谱利用率。对MIMO技术的理论基础进行了分析。并介绍了MIMO技术的研究现状。包括MIMO信道模型和各种空时码，最后指出了MIMO商业化之前需要解决的一些问题。     

Baars的意识剧院模型

意识研究中一些相近的概念经常被混淆不清,Baars通过一个剧院模型形象地阐述了意识、注意、工作记忆等概念间的联系和区别。剧院的舞台好比工作记忆,而注意的作用就如一只聚光灯,舞台上被聚光灯照亮的部分就是意识内容。剧院模型与很多实验证据相一致,基于剧院模型可以提出一些可验证性的假设。     

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-