过程控制课程教学改革及实践

过程控制是自动化专业的一门重要的专业课。本文针对该课程实践强的特点,从教学内容、实验教学环节、教学手段与方法等方面进行了过程控制教学改革的探索与实践。实践表明该改革取得了较好的教学效果,大大提高了学生学习兴趣,培养了学生分析问题、解决问题的能力。     

过程控制及仪表课程教学方式改革研究

过程控制及仪表是自动化专业的一门重要的专业课,是一门控制理论和工程实践相结合的课程。为了进一步提高课程的教学效果,提升学生的应用能力,该文对课程的教学方式和实践教学方案进行一些改革探讨。主要采用项目导向法,引导学生明确学习目标,围绕一个具体的项目进行探究式的学习;将MATLAB仿真全面引入理论教学和实验教学中,提高了教学质量。经过两年的教学改革实践检验,学生的学习热情明显提高,操作能力加强,取得了较好的改革效果。     

“过程控制及仪表”课程的卓越工程师培养模式教学

为更好地培养学生的创新能力和实践能力,实施卓越工程师培养计划,充分强调学生创新能力和工程素质的培养,针对目前"过程控制及仪表"课程无法满足该培养模式要求的现状,研究了这一课程的教学改革问题,包括课程的内容和体系,理论教学和实践教学及考评体系设置、调整和变革等。提出具体改革措施。     

项目驱动在《过程控制技术》课程中的应用

本文设计了基于项目驱动教学模式的《过程控制技术》课程教学方案,对课程的内容、教学方法和手段、考核模式等提出改革的方法和措施,提高了教学效果和教学质量,同时提高了学生的实践动手能力、自学创新能力、团队合作能力和语言表达能力。     

实践教学:高师美术教育学课程所不可忽视的内容

基础美术教育课程改革对高师美术教育人才的培养提出了新的要求,而作为专业核心课程的美术教育学课程教学却忽视实践教学,落后于课程改革的需要. 根据新课程实施对美术教师的要求,实现高师人才培养目标,美术教育学课程教学要重视实践性,通过实践教学,使学生获得对新课程改革的了解,掌握美术教育的技能,培养实践能力和创新精神.     

《过程控制》课程教学改革和探索

过程控制是电气工程及其自动化专业培养学生综合能力的一门专业课程,可提高学生的创新能力、实践能力及专业综合素质,因此采用先进的教学方法和实践手段可以使学生具有较强的社会竞争力和适应性。该文分析了目前《过程控制》课程教学和实践体系中存在的问题,从适应当前社会发展的培养理念出发,探讨具有更好教学效果的教学内容、教学手段和方法、实践环节等,并在实际教学取得了良好的效果。     

《过程控制系统》课程的教学改革

《过程控制系统》是自动化专业的一门重要专业课程,是培养实践型与创新型人才的关键课程之一。文中分析了《过程控制系统》课程本科教学的现状和所存在的问题,研究了《过程控制系统》课程教学改革的思路,提出了一系列教学改革措施,从课程的教学内容、教学方法、教学手段、实践教学和考核方式等方面入手来解决教学中存在的问题,经过几年的探索和实践,取得了良好的教学效果。     

基于“任务驱动教学法”的高职课堂实践与研究

本文以《仪表与过程控制》的课堂教学实践为例,阐述在高职教学中采用任务驱动教学法的具体实施过程,提出对该课程课堂教学改革的具体思路与实践方法。     

对《高频电子线路》教学改革的探讨

本文结合教学中的实践和体会,从理论教学和实践教学两个方面对<高频电子线路>课程的教学改革发表了看法.旨在通过改革提高学生学习兴趣,培养学生实践能力.     

"金融工程"的教学改革与实践

首先阐述金融工程课程在应用型本科高校的开设情况与教学现状,然后从教学方法的改革、教学内容的与时俱进、教学团队的建设、实验室设施的完善与学生实践活动的丰富等4个方面浅析金融工程课程教学与实践改革. 最后,结合金融工程课程的特点,强调培养学生的创造性思维.     

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.