材料类专业实验中心建设与实验教学改革的探索与实践

针对学校材料类专业实验室及实验教学现状,提出了改变传统的实验室体制和实验教学模式的方案,并付诸实践。按照“以学生为本、培养创新能力”的实验教学理念,建立了独立的专业实验教学体系和与之配套的实验中心管理模式,对于培养学生实践能力和创新能力具有一定的积极意义。     

木材加工专业创新性实验室建设与管理问题探讨

根据高校加强实践教学和创新人才培养的需要,阐述了加快实验教学改革和实验室平台建设,明确实验教学及实验室建设在本科生人才培养中的重要作用与地位,提出了创新性实验室建设与管理是高校提高教学质量、培养学生实践能力和创新能力的重要保障.     

改革高校实验教学,提高学生实践创新能力

本文从实验教学队伍建设、合理安排实验教学体系和建立实验室开放平台等方面,对如何进行高校实验教学改革、提高学生实践创新能力作了初步探讨与分析。     

电子技术基础实验的改革思路

培养学生的创新能力是实验教学的中心问题，实验室科学创新的源泉，没有足够的实验研究，就不能解决实际问题，也不可能不断创新提出突破性的理论。实验室是进行科学研究和实验教学的主要场所，是培养学生创新能力，独立工作能力和实践能力的主要基地。该文总结了经过长期实践，电子实验教学从基础型、设计型实验到综合型实验的转变过程，为了合理分配实验教学的时间建立了开放型实验室，充分发挥了学生的主体作用。同时在实验教学操作部分增加了操作分数的比例，有利于培养学生的创新能力和动手能力。     

基于创新人才培养的实验室建设

实验室是高校培养学生创新能力的重要基地.通过实验室建设.将有力地推进实验教学内容、教学体系、教学方法和教学手段的改革,推进教学质量提高,从而促进学生的实践能力及创新能力的全面提升.     

实验教学体系与管理模式改革探讨

实验教学是本科人才培养的重要环节,对学生实践与创新能力的培养具有重要的作用。本文从实验教学体系与管理模式在本科人才培养中的重要性出发,阐述了浙江师范大学数理与信息工程学院电工电子实验教学示范中心如何优化实验教学体系,改革实验室管理体制,探索新的实验教学体系与管理模式,促进本科生研究能力、实践能力与创新能力的培养。     

浅谈计算机基础课实验教学示范中心建设方案

实验教学是培养学生创新能力和实践能力的重要载体,因此高校必须大力强化实验室建设和实验教学改革。本文从计算机基础课实验教学示范中心建设的必要性入手,探讨建设的主要思路。     

实验教学改革与学生创新能力培养探索

培养创新型人才是各类院校肩负的重要历史使命,实验教学作为我国实施科学素质教育的基本教学环节,是培养学生创新能力、实践能力和创造精神的有效途径。文中从改变实验室管理理念,建立开放型实验室和设立创新基金项目等方面分析了我校实验教学改革对人才创新能力培养的重要性。     

浅析交通工程专业本科教学中开放实验的意义

论述了实施开放实验对于交通工程专业学生素质教育和能力培养的重要的意义。分析了交通工程专业开放实验的内涵,阐述通过转变实验教学观念、开放实验教学体系、改革实验教学方法、创新实验内容、加强实验室管理与重视实验室师资力量建设等手段,结合交通工程专业实践教学环节改革,达到提高学生实践和创新能力。     

实验教学改革与学生创新能力培养探索简

培养创新型人才是各类院校肩负的重要历史使命,实验教学作为我国实施科学素质教育的基本教学环节,是培养学生创新能力、实践能力和创造精神的有效途径.文中从改变实验室管理理念,建立开放型实验室和设立创新基金项目等方面分析了我校实验教学改革对人才创新能力培养的重要性.     

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.     

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.     

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-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the