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1.
张帅 《科技咨询导报》2010,(29):220-220,222
近年来部分大众传媒在关注受众中呈现出过度娱乐化倾向;在迎合市场中呈现出过于低俗化倾向;在追逐时尚中呈现出极端窥秘化倾向;在追求效应中呈现出趋于虚假化倾向。规范大众传媒的正确导向,应该树立社会主义道德观,在注重娱乐品质中反对泛娱乐化倾向;规范传媒的社会责任,在注重提高大众水平中反对低俗化倾向;完善传媒的监督制度,在注重保护个人隐私中反对窥秘化倾向;加强传媒的职业精神,在注重提高传媒公信中反对虚假化倾向。  相似文献   

2.
基于关系数据库的图的运算   总被引:1,自引:0,他引:1  
针对在数据库应用程序中经常遇到的一种查询和实际问题的求解,提出了在关系数据库中对图进行表示和运算的方法。在该方法中,图中各项点信息用字段来存放,图中的边用记录来表示,给出了在该表示方法中对图进行遍历和求解最小生成树的算法。通过对一无向图的遍历及其最小生成树的求解举例,表明该方法表示图易于存储数据,对于解决数据库应用中遇到的复杂问题具有一定的参考价值。  相似文献   

3.
蔡磊 《科技信息》2013,(20):259-259
在中专学校的计算机教学中,创新能力是学习计算机知识的一项重要能力,有助于培养学生在课堂学习外继续保持不断学习、不断创新的能力。创新能力在任何领域都极其重要,而在计算机的使用中,由于科技与软件不断更新换代,为了使学生在将来的工作与生活中永不落伍,创新能力在计算机应用中更加显得不可缺少。  相似文献   

4.
在大体积混凝土施工中,对温度应力及温度的控制非常重要。这主要是由于两方面的原因。首先,在混凝土施工中常常出现温度裂缝,影响到结构的整体性和耐久性。其次,在运转过程中,温度变化对结构的应力状态具有显著的不容忽视的影响。本文仅对混凝土施工中温度裂缝的成因和处理措施进行探讨。  相似文献   

5.
吴捷 《科技咨询导报》2007,(10):235-235
新课程改革强调发现学习、研究性学习、探究学习。这些学习方式充分体现了学生学习的自主性。即:规律让学生自主发现、方法让学生自主寻找、思路让学生自主探究、问题让学生自主解决。通过研究性、探究学习,让学生在自主学习中探究、在质疑问难中探究、在观察比较中探究、在矛盾冲突中探究、在问题解决中探究、在实践活动中探究。本文首先分析了新课改条件下教师的四个转位,继而又提出了在新课改的情况下,对学生能力的培养。  相似文献   

6.
在普通物理的电磁学中,高斯定理适用于静电场,在麦克斯韦方程组中也没有涉及高斯定理的应用范围.本文证明高斯定理不但适用于静电场,在非静电场中也是成立的.可以说:高斯定理是电磁场中普遍适用的场方程.  相似文献   

7.
培养师范生的英语教学途径是 :在实习中 ,在英语教学实验中 ,在英语试讲中 ,以及在英语教学法课堂教学中培养师范生的英语教学能力  相似文献   

8.
从王君平身上,可以清晰地看到中国直销业职业经理人的奋斗和成长史:豪门中历练,名门中成长,新秀中释放。王君平在安利中读懂直销和管理,在天狮中发挥和成长,在月朗国际和一群牛人们创造震惊业界的奇迹——每当我们描述和记录中国直销业的优秀职业经理人时,王君平的名字总是名列前茅。  相似文献   

9.
自信是一种重要的心理素质.学生感受到自己获取的一系列成绩和进步时,就会相信自己的能力,相信自己能取得成功.因此,教师应当让学生在信任中唤起自信,在引导中树立自信,在评价中完善自信,在自信中走向成功,在自信中成长.  相似文献   

10.
由于中英两种语言文化的差别,在英语中必不可少的和自然的一些词语在汉语中就可能是多余的,因此,在翻译成汉语的过程中就应运用省译法这一翻译技巧来进行处理.  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
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.  相似文献   

14.
何延凌 《科技信息》2008,(4):258-258
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
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。  相似文献   

19.
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.  相似文献   

20.
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.  相似文献   

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