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1.
要构建和谐社会,首先得从培育人的基地出发,学校有勃勃生机的和谐校园文化环境,生动的人文文化景象,和谐社会的建设才有牢固的基础  相似文献   

2.
在电热恒星培养箱内,利用特制白铁皮盒作容器,分日光灯照明及黑暗条件下两组,3cm深的浅水人工培育雅鳖,成活率均达到80%以上,生长量平均为50g/180d。  相似文献   

3.
绿毛龟的人工接种与培育刘宁芳绿毛龟,由普通龟类龟体上固着生长水生绿色植物--基枝藻而形成,为动植物的有机结合体,具有较高的观赏和药用价值。尽管大自然的水域中生存着大量的基枝藻,但因其孢子的浓度低,龟类活动范围大等原因,天然野生绿毛龟极为罕见,格外珍贵...  相似文献   

4.
兰花为百花之英,王者之香,具有真抓、艳民幽面之时为我国汉培兰花已有3000多年的进人历史.不奏时新加九荷兰及要回里成灵州则依靠培植兰花为国净赚风了大量外汇。据或计,全世界兰科植物多达500~800夙,大约有30000-35000个品种野生兰花太太地追广.北自阿拉斯加,南至智利南饬均生长有野生兰花大多改兰花百天不且多拉环效,生长在镜偷、亚拉狲地区。热带兵洲约有300属8300种:热带亚洲25,6800种:井街非洲约130属,3000多种。从兰花种原来了,可方为原生种卜野生兰),杂交种(用人工又见办…  相似文献   

5.
刘晓东 《广东科技》2011,(24):78-78,80
根据作者多年的工作经验,对香樟树的特点及如何更好的栽培技术进行分析,供同行业参考。  相似文献   

6.
朱玲 《南昌高专学报》2005,20(6):103-104
水培花卉正逐渐成为都市养花一族的新宠,许多上班族的办公桌上、普通市民的家里、购物中心、影院等公共场所中,都点缀着造型优美、袅娜多姿的各种水培植物。由于清洁、美观、好打理,水培植翕日渐成为都市人高雅、健康的消费时尚。  相似文献   

7.
非智力因素很大程度上对人的成功起着决定作用,而潜在课程能春风化雨般地促进其培养。在此过程中,潜在课程能起到丰富感性经验、培养优良品质、发展想象力、激发兴趣、陶,台情感、磨炼意志等作用。因此,教师要充分利用自己所承担的课程,开发潜在课程,以潜在课程的制度形态规范学生,精神形态熏陶学生,物质形态启迪学生,培养学生的非智力因素。  相似文献   

8.
AMS/5近交系小鼠培育及其生物学特性的研究   总被引:1,自引:0,他引:1  
近交纯系动物具有一致的基因型和遣传特征,个体之间差异极小,实验中容易取得一致的结果^「1.2」。随着医学科学研究的飞速发展,近交系动物的培育及应用愈来愈被人们所重视,为适应不同课题研究需要而培育的近交系动物的品系越来越多。由于各种原因,国内开展这项工作较晚,长期以来我们缺少更多合格的近交动物品系来进行大量生产和供应。我院于1974年3月从封闭群LACA小鼠中选留亲本,进行严格的近亲同胞兄妹交配,宗  相似文献   

9.
工业在新余经济中具有特殊的重要地位.如何选择和培育好工业支柱产业,实现工业结构的调整升级,是新余经济发展所面临的重大战略课题.“2 3”,即以食品、医药工业为主导产业,以机械、化工、冶金工业为支柱产业的构想,或许可以成为21世纪初新余工业的发展方向.  相似文献   

10.
对冬虫夏草菌进行培养、纯化、液体培养,使其繁殖扩大,并制成孢子悬浮液;对寄主昆虫—黄粉虫进行人工饲养、接种感染等试验研究。通过试验发现,代寄主昆虫被感染率达到30%,感染是多种因素综合作用的结果。  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.
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   

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.
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   

15.
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   

16.
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   

17.
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   

18.
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-  相似文献   

19.
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-  相似文献   

20.
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  相似文献   

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