微热的
- 与 微热的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Organosilicon-acrylate micro emulsion with core-shell structure was synthesized with OP-10,JFC and amyl alcohol nonionic compounded emulsifier by means of seeded emulsion polymerization.
运用种子乳液聚合工艺以OP-10/JFC/戊醇非离子复合乳化剂合成了具有核-壳结构的有机硅-丙烯酸酯微乳液,研究了复合乳化剂类型、丙烯酸酯单体、有机硅单体加入方式和含量、pH值、硫醇对微乳液聚合过程中稳定性和光泽度的影响,通过差示扫描量热仪和透射电镜对微乳液的结构进行了表征。
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The thermal degredation of chloroprene rubber grafting butyl methacrylate was studied by thermogravimetic analysis and differential thermogravimetic analysis.
用热重法和微商热重法研究了甲基丙烯酸丁酯与氯丁橡胶的接枝共聚物的热降解过程。
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Since continuum hypothesis is still valid for liquid flow in microchannels with hydraulic diameter at about 100 micro-meters, a turbulence convection heat transfer model for single-phase liquid flow in microchannels is established, in which wall surface roughness viscosity is introduced.
分析表明水力直径为100μm左右的微管道内单相液体流动仍满足连续介质假设,引入粗糙度粘性系数,建立了微管道内单相液体湍流对流换热模型,并采用3维有限容积法进行了数值计算,将计算结果与实验结果进行了对比。
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A series of theoretical and experimental studies on the microstrip patch antennas with dielectric superstrates is carried out systematically. Firstly, a comprehensive survey of the microstrip antenna technology and its theories are presented. Then, two analysis techniques, named as the spectral domain Green's function method and the spectral domain integral equation method are developed. The SDGF method is a simplified analysis technique, which takes advantage of the spectral domain immittance approach to find the dyadic Green's function for the stratified media, and obtains the complete closed-form formulas for radiation patterns, directivity, efficiency, gain etc. Some interesting calculated results are presented. The SDIE method is capable of determining resonant frequency, radiation characteristics, input impedance etc, for the covered microstrip patch antennas. Comparing with other full-wave analyses it reduced computation and mathematical labour remarkably. The singularities near the pole location of the surface-wave modes and the difficulty of the integral computation over infinite range of oscillating integrands are dealt with actively and documented well. Results predicted by the SDIE method agree extremely well with our experimental results for resonant frequencies of various superstrates. The superstrate effects on impedance and radiation characteristics also have been investigated experimentally so that the gap due to lack of measured data and computed results for multi-layered superstrate has been filled to some degrees and two useful observations have been achieved for weakening the resonant frequency shift and optimizing the microstrip antenna gain. As a meaningful application, the design and analysis of a 4×4 patch array are introduced.
实用微带天线普遍加介质覆盖层来防护热,物理损伤和环境影响,也可能在飞行或严酷气候条件下自然形成覆盖层本论文对带介质覆盖层的微带贴片天线系统地作了一系列理论和实验研究首先,对微带天线技术和理论作了全面的综述然后,发展了两种分析方法,称为谱域格林函数法和谱域积分方程法SDGF法是一种简化的分析技术,它利用谱域导抗法来求得分层媒质的并矢格林函数,并得出方向图、方向性系数、增益等参数的完整的闭式公式,给出了一些令人感兴趣的计算结果SDIE法能确定介质覆盖微带天线的谐振频率、辐射特性和输入阻抗等与其它全波分析方法相比,它明显减小了计算量和数学工作量已有效地处理了表面波模极点附近的奇异性和对振荡的被积函数的无限区间积分计算的困难对于不同覆盖层情况下的谐振频率,由SDIE法所预示的结果与我们的实验结果吻合得很好对于覆盖层对阻抗和辐射特性的影响也已作了实验研究这在某种程度上填补了缺少实验数据和计算结果之间的间隙,并得出了缓解谐振频率偏移和优化天线增益的两点有用的结论作为有意义的应用,介绍了一个4×4元矩形贴片天线阵的设计和分析。
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The crystallization form of porous glass-ceramics belong to volume crystallization; the parawollastonite which was the main phase was monocline chain structure ZM type wollastonite, with long needle crystal or short rodlike crytal.
为了研究多孔微晶玻璃的保温性能,根据伟晶岩多孔微晶玻璃的内部组成以及孔隙率情况,作者提出了三种热传导的理想等效物理模型,推导出了数学公式,验证了多孔微晶玻璃的导热系数。
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Lead zirconate titanate has broad applications in micro devices such as micro sensors, micro actuators, ferroelectric memory etc.
锆钛酸铅材料以其优异的压电、铁电、介电和热释电等性能,被广泛用于制备各种微器件,如微力传感器、执行器、铁电存储器等。
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The crystallitic carbon was prepared from anthracite by demineralization and carbonization,then the magnesium/carbon nanocomposites for hydrogen storage were manufactured through reaction milling of the mixture of magnesium,crystallitic carbon and aluminium under hydrogen atmosphere.
将无烟煤进行脱灰和碳化,制备微晶碳,再将微晶碳和铝添加到镁中,用氢气反应球磨法制取镁/碳纳米复合储氢材料。用透射电子显微镜、选区电子衍射、X射线衍射和差示扫描量热分析对储氢材料的粒度、晶体结构和放氢温度进行了测定。
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Thermo _ gravimetric analysis is used to determine the components and their contents of a sample of mixture.
白正伟,测定混合物组成及组分含量的热重分析法采用热重-微商热重法确定混合物的组成及各组分的含量。
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Then the relations of structures and properties of microporous membranes used in lithium-ion batteries were discussed.
介绍了锂离子电池隔膜用微孔膜的制备原理与结构,重点叙述了熔融拉伸法和热致相分离法制备微孔膜的基本原理和膜结构影响因素,并在此基础上讨论了锂离子电池隔膜用微孔膜结构与性能之间的关系。
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In electronic engineering, we usually have to bond a micro-strip board to a metalcarrier in order to provide proper stiffness, thermal conductivity and electrical conductivity, thus to make general handling,solder stencilling, pick and place of components be easier, and prevent the warping or distortion of the board during soldering.
林伟成,微带板与金属载体间的大面积焊接及胶接方法工程中常常需要把微带板和金属载体焊接或胶接起来,以获得合适的刚性、电导率和热导率,从而使丝网印刷、元器件贴装等工艺过程变得更加容易。并防止焊接过程中微带板的翘曲和变形。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。