碳的
- 与 碳的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In order to validate the effect of concrete carbonization accelerated by wind ,three groups of concrete beam carbonization experiment with different sections respectively (rectangle,Ttype and Ⅱ type ) were analysed. Based on the theoretical analyses and experimental results, it is concluded that the wind swirl and the fosse moat effect can also accelerate the concrete carbonization.
为了验证风对混凝土碳化的加速作用,本文分析了三种截面混凝土梁的碳化试验,依据理论分析和试验结果,得出风的旋涡和壕沟效应可以加速混凝土的碳化,完善了风加速混凝土碳化的理论。
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After removing the catalyzer by dense muriatic acid, carbon nanotubes are reacted with mix acid (vitriol:nitric acid=3:1 vol./vol.). By comparing the surface image of gained carbon nanotubes under the different condition, the best mix acid oxidation temperature is fixed on 140°C and the reaction time is 30min. The soluble carbon nanotubes were prepared by decorating of octadecylamine on the surface of nanotubes. Three processes of grafting were investigated in this research.
对碳纳米管的热失重、差热分析结果表明,通过在一定温度下空气氧化可去除大部分碳颗粒;而浓盐酸浸泡可去除碳纳米管制备过程中残留的催化剂颗粒;对在不同条件下与硫酸和硝酸配制的混酸反应处理后得到的碳纳米管的表面形貌研究表明最佳混酸氧化条件为140℃氧化30min。
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Furthermore, by using Natori theory on the field-effect transistor we study the current-voltage characteristics of deformed carbon nanotube field-effect transistors. For strain deformation, the conductivity of zigzag nanotube presents different characteristics with the remainder of n and 3. For armchair nanotubes, the conductivity does not change with the strain parameter. However, for torsion deformation, the conductivity rapidly increases, specially for the armchair tube. It has many obviously different conductivity behaviors between zigzag tubes and armchair tubes.
进一步应用场效应晶体管Natori理论模拟计算形变碳纳米管场效应晶体管的电流-电压特性的影响,zigzag碳管根据n 与3的余数关系表现出不同的电流变化趋势,而对于armchair碳管轴向拉伸不改变电流;在扭转形变时,碳管电流急剧升高,特别是armchair管。zigzag和armchair管的电流随扭转角度和外电压行为明显不同。
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To analyze and compare the microstructures and appearances of steel wires with different phosphatization quality treated simultaneously in the same continuous production line by means of microscopy and SEM.
利用金相分析及扫描电镜等方法对钢丝连续生产线上同时处理的磷化质量差异较大的钢丝进行金相组织和外观形貌对比分析,指出造成钢丝磷化质量相异的主要原因是钢丝表面存在脱碳组织,这种脱碳组织是线材表面脱碳造成的,并且线材的脱碳层厚度即使是在相关标准规定范围内,也会对连续作业线的钢丝磷化造成影响。
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This peak arises from the preferential rotation of the axes of carbon pairs existed in the specimen under the influence of an alternating load.
在外加应力的作用下,这类碳原子对轴的择尤旋转便引起了内耗。根据这个机构并结合内耗测量过程中试样内部碳原子重新分布的情况,可以推导出碳浓度和内耗峰高度之间的定量关系,并从而求出合金的点阵空位形成能和构成碳原子对时所放出的能量。
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Worn surface morphology was examined with scanning electron microscopy, and wear volume was measured with a Talysurf 5P-120 topographer. Results show that CNTs, in mass concentration of 0.01%~0.1%, can greatly improve the antiwear ability of lubricating oil. With addition of CNTs, the maximum reduction of wear rate is about 57%, and scratches on the worn surfaces become slighter and more uniform. The maximum decrease of friction coefficient is about 15% with 0.025% CNTs additive at the load of 300 N. The antiwear mechanism has been discussed.
结果表明:碳纳米管作为润滑油添加剂表现出优良的抗磨性能,在质量分数仅为0.0125%~0.1000%时,润滑油的抗磨性能显著提高;在质量分数约为0.0500%时其抗磨效果最佳,磨损率降低幅值达57%;在较高载荷下,添加0.0250%的碳纳米管能够使其摩擦系数减小约15%,但随着碳纳米管质量分数的增加,摩擦系数迅速提高;含碳纳米管润滑油的磨斑表面平整,划痕较细且分布均匀。
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Based on the above research, we analyzed regional metallogenic conditions from geology, geophysics and geochemistry. Considering regional strata, some source beds with ore-bearing strata controlled apparently metallogenesis. The strata contained hydrothermal siliceous rock or siliceous albitite ether formed some favorable source beds and established substantial foundation for later diplogenetic metallogenesis e.g.
从区域地层上来看,含特殊层位的矿源层对成矿有明显的控制作用,其中含热水沉积成因的硅质岩或硅质钠长质岩的地层或形成有利的矿源岩,为后期叠生成矿奠定物质基础,或直接形成工业矿床;另外,区内黑色页岩(包括碳质板岩、碳质泥岩、碳质页岩和含碳钙质板岩等)也是很好的矿源层。
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Template-confined growth is a very powerful method for obtaining aligned 1D nanomaterials with adjustable diameter, length and morphology. Porous anodic aluminum oxide templates with different channel structures have been synthesized in our lab, with which the aligned CNT arrays, Y-branching and novel dendriform CNTs have been obtained. Based on the structural characterization of the products, a space-limited and self-catalytic growth mechanism has been proposed accordingly. Roughly speaking, the catalyst particles at the bottom of template channels initiate the nucleation of carbon species, which acts as the seed for subsequent CNT growth.
本文采用近年发展起来的模板控制生长法,以多孔氧化铝模板控制CVD生长的方法调控了碳纳米管有序阵列、γ-分叉及树枝状分叉结构,在对产物进行详尽结构表征和分析的基础上阐述了氧化铝模板控制生长碳纳米管的生长机制:孔道内催化剂仅在生长初始阶段催化碳物种的成核,起&种子&作用,随后模板孔道自身的催化及限域作用使碳纳米管紧贴着孔道内壁生长。
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According to the morphological characteristics of cementite lamellae, the deformed pearlite can be divided into three kinds: irregularly bent lamella (pearlite lamella originally inclined with large angles to the rolling plane and irregularly bent after deformation); coarse lamellae with shear-band (the rhomboidal blocks of weakly deformed lamella bounded by shear band) and fine lamella (heavily deformed lamella aligned parallel to the rolling direction with fine interlamellar spacing).
按渗碳体形态特点,变形珠光体组织可分为以下3种类型:(1)不规则弯曲片层型,即变形后的渗碳体与轧制面呈大角度偏离且不规则弯曲的珠光体。(2)带有剪切带的粗大片层型,即被渗碳体剪切带分开且变形轻微的珠光体。(3)精细片层型,即与轧制方向平行排列、片间距细小且渗碳体严重变形的珠光体。
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Especially, the difference of the nearest-neighbor hopping integral is due to the effect of the curvature of the carbon nanotubes. So, in fact there is a very narrow energy gap near the Fermi energy of unsquashed metallic zigzag carbon nanotubes, and, a slighter deformation is required to open a considerable energy gap in metallic zigzag carbon nanotubes than that in armchair nanotubes.
特别是,最近邻格点之间的跃迁积分的变化与碳纳米管的曲率紧密相关,因此实际上,理想金属型 zigzag 碳纳米管本身具有微小能隙,而施加比 armchair 碳纳米管小的多的压缩量,就可以使金属型 zigzag 碳纳米管在费米能处打开相当的能隙。
- 推荐网络例句
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For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether
年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。
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Eph. 4:23 And that you be renewed in the spirit of your mind
弗四23 而在你们心思的灵里得以更新
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Lao Qiu is the Chairman of China Qiuyang Translation Group and the head master of the Confucius School. He has committed himself to the research and promotion of the classics of China.
老秋先生为中国秋阳翻译集团的董事长和孔子商学院的院长,致力于国学的研究和推广。