高分子材料专业综合实验教学改革与实践

专业综合实验是高分子材料专业的重要实践教学环节,对学生的实践能力和创新精神的培养起着重要的作用。我们通过对高分子材料专业综合实验教学效果的调查,对材料学院高分子材料专业本科生综合实验的定位、实验内容和实验教学方法进行了初步的改革与实践。实践表明实验教学的改革,提高了学生的创新能力和动手能力,为学生的综合素质的培养打下坚实的基础。     

加强实验教学改革 深化实验教学示范中心建设

为加强实验教学改革,电工电子实验教学示范中心从实验教学改革思路、管理体系和管理手段创新、实验室开放及教学内容、教学方法的改革等方面,阐述了中心在创新管理体系和实验教学体系方面的探索与实践,探讨了培养学生创新能力和综合素质的措施和方法。通过构建"三三制"综合实验教学管理体系,全面提升了学生的工程实践、科研创新、写作和商学素养能力的提高,使学生在理论学习、实践操作、创新思维三方面得以协调发展。     

环境工程专业实验教学改革与实践

专业实验教学是环境工程专业整个教学过程的重要组成部分,对学生的实践能力、创新能力和综合素质培养起着重要作用。以泰山医学院环境工程专业实验教学的改革与实践为例,阐述了提高专业实验教学质量的经验与体会,提出并实施了改革专业实验教学和提高学生实践能力的几项措施,并在实践中取得了一定的成效。     

海洋生物综合实验教学模式探索

为提高学生在教学过程中主动参与积极性,培养学生的实践创新能力,海洋科学专业在实践性教学环节开设了海洋生物综合实验。针对综合实验教学特点,讨论在实验教学过程中如何改革实验教学模式,以及综合性实验教学过程中教学形式组织和教学效果评定,以期有效地推进综合实验教学模式改革,提高实验教学质量。     

浅谈综合化学实验教学改革实践

综合化学实验承担着培养学生综合应用化学基础知识和多种化学实验技能去分析问题、解决问题的能力,在学生培养方面起着至关重要的作用。综合化学实验教学改革一直是化学教学改革的重要方向之一,近年来四川大学在综合化学实验教学改革方面进行了多方面的尝试,特别是实验教学内容方面的改革实践,从增加实验的趣味性、生活性、实验的绿色化、科研项目转化等多方面入手,取得了一定的效果。通过综合化学实验教学改革实践,使综合化学实验教学水平有了明显提高,同时显著提升了学生的实验技能及科研素养,为学生今后的工作、学习打下了坚实基础。     

水利水电工程专业综合型实验教学改革与实践

为了培养造就具有高实践能力的水利水电专业高级人才,针对传统单一验证型实验教学体系的局限性,对水利水电专业实验教学改革进行了探索和实践,提出了水工综合型实验教学改革的思路,设计开发了水工综合型实验的教学内容,改革成效表明,综合型实验能显著提高学生的综合实践能力.     

构建实验教学新体系培养学生的创新意识

面向市场,培养具有综合设计能力、独立开发能力和创新意识的复合型高素质人才是大学教育的一项重要任务。对本专业进行实验教学体系、实验教学方法、实验教学内容及实验教学考核的全面改革。构建实验教学新体系,培养学生创新意识的具体工作。教学实践表明,我们实验教学改革的实践和探索取得了初步的效果,学生的实验综合设计能力和创新意识有了较大的提高。     

动物生物学实验课的教学改革与实践

本文介绍了动物生物学实验教学的改革,在实验教学内容、实验教学模式及实验综合评价方式等方面进行了广泛的实践和探索,以增强实验教学效果,全面提高学生综合素质。     

动物生物学实验课的教学改革与实践

本文介绍了动物生物学实验教学的改革,在实验教学内容、实验教学模式及实验综合评价方式等方面进行了广泛的实践和探索,以增强实验教学效果,全面提高学生综合素质。     

食品工程原理实验教学改革与实践

为了提高食品工程原理实验教学的质量,结合我校食品工程原理实验教学改革与实践,围绕如何培养学生的综合能力及创新精神．从实验教学内容与教学方法以及实验教学平台建设等方面阐述了实验教学改革的举措。通过实验教学的改革与实践,提高了食品工程原理的教学质量。     

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.