基于INTERNET的远程教学的设计与实现

随着网络技术的进步，远程教学显示出越来越大的用途和优点，本提供了一种远程教学的设计和实现的方法。     

基于Web的为民服务平台的构建

随着信息化技术的发展与构建和谐社会工作的开展,为公众与政府之间搭建一个统一公开的为民服务平台显得极其重要,本文着重讲述如何架构一个基于W e b的多层体系结构的为民服务平台,通过相应制度的实施,实现网上办事、网上咨询与网上投诉。     

网上书店的分析与实现

随着互联网技术的发展和普及,电子商务已接被广大的互联网用户所接受,网上书店系统作为该领域的应用,通过网上书店系统的建设以实现对商业零售企业提供信息化管理,建立了网络销售系统,本文着重论述了网上书店的需求分析和功能模块的设计.     

网上购物与网上学习中的个人化推荐系统的比较

因特网的普及促进了电子商务和网上学习的迅速发展,个人信息易于获得以及网络用户之间交互能力的大幅提高催生了个人化推荐技术和系统的发展。该文从网上购物和网上学习所固有的特征出发,对网上购物和网上学习每个阶段的个人化需求进行了全面系统的分析,对比了网上购物和网上学习两种情境下的个人化推荐系统,并提出了一系列假设;最后,对目前广泛使用的几种个人化推荐技术在这两种情境下的适用性进行了比较分析。     

网上公共领域功能实现的过程研究

网络技术为人们沟通提供了更为直接,方便的途径,体现了民主沟通的原则与价值.网络技术所构建的网络空间,打破了时间与空间的限制,为人们提供了一个新的交往的领域.     

基于ASP的网上购物车系统实现技术的研究

网上购物车系统是目前电子商务网站的一个重要的组件。本文主要研究了利用ASP技术来实现网上购物车系统的实现技术，并对其实现方法及特点作出比较。     

无线局域网在网上阅卷系统中的应用

随着无线局域网技术的发展,无线局域网技术以其特有的优势得到了广泛的应用,通过网上阅卷在无线局域网的实际应用,分析了网上阅卷在无线局域网下运行的可行性和未来的发展前景。     

浙江网上技术市场的成功经验与启示

将技术作为一种商品进行交易,可以上溯至1474年。当时,在意大利的威尼斯,第一次从法律上初步确定了技术可以作为商品进行交易,开人类技术交易的先河。自那以后,技术交易在西方国家得到了持续、充分的发展。新中国成立以来,长期实行计划经济,不承认技术的商品属性,各种技术成果一直被无偿使用。改革开放以后,人们逐步认识到技术成果也是商品,才开始有了技术交易活动。1980年10月17日,国务院颁布了《关于开展和维护社会主义竞争的暂行规定》,其中首次指出“对创造发明的重要技术成果要实行有偿转让”。1980年末,沈阳市和武汉市科委在国内率先成立了开拓技术市场的中介服务机构,并举办了技术交易会。1981年6月《技术市场报》创刊,1984年11月16日国务院审定《技术转让条例》,正式提出了技术市场的概念。     

希望就在这里--中国浙江网上技术市场正式运行侧记

中国浙江网上技术市场是一个向国内外开放的大市场,它运用信息网络手段和市场机制,突出企业在技术创新主体中的地位和作用,以市场技术需求拉动技术供给,不断优化科技资源配置,加快了科技创新和科技成果的商品化和产业化进程,是一个永不落幕的市场。     

现代远程教育的解决技术

纵观当前国内外远程教育的各种形式，函授由于成本低廉，现仍在使用；广播电视覆盖面大，是当前重要的远程教育手段、基于Internet上的远程教育，采用了各种多媒体技术、先进的网络通信技术，使得教与学的交互性大大加强，形象直观生动，受到普遍欢迎．分析了远程教育的发展历史及现代远程教育的特点，介绍了适合我国国情的支持协同工作的现代远程教育系统．     

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.     

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.     

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.     

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…