后表面
- 与 后表面 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The method of immobilization of DNA on the surfaces of fiber optic tip was developed.
建立了DNA探针在光纤表面的固定方法,探讨了在光纤表面进行核酸杂交的各种条件以及杂交后检测的方法,为该传感器的应用研究打下了基础。
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The rules of effect of the experimental parameters of the pulse electrochemical finishing, such as the flow field, the electrolyte flow rate and the interelectrode gap on surface quality are highlighted and analyzed based on the experiments in this paper.
目前 ,脉冲电化学加工主要集中在脉冲电解成形加工方面,加工精度是其重点研究对象[1~ 7] 。日本学者用成对电极的方法对线切割加工后的表面进行光整加工[8] ,取得了较好的表面质量,但这种方法也采用成形加工,通用性较差。
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Based on the summarizing of the exiting algorithms of the texture mapping and antialiasing, this paper goes deeply into the basic theory and processing of texture mapping. The texture compress algorithm which can satisfy the need of the memory and time is given for the stochastic sampling in the inverse texture mapping; the geometry transformation in the texture mapping are discussed and the concepts of the unitary parametrization and the patch parametrization is proposed, some kinds of the unitary parametrization methods of parametric surfaces and the geometry transformation in the patch parametrization are also presented; in order to solve the aliasing in the parametrization of intermediate surface-sphere in two-part texture mapping, an area-preserving transformation is presented also; to improve the quality of the graph the aliasing in the texture mapping is analyzed from the aspect of signal process, and the modified summed-area tables algorithms is proposed; the distortion of the scanline conversion algorithms under perspective transformation is analyzed and the proper interpolation algorithm is presented so the aliasing problem of the polyhedral object after the unitary parametrization is efficiently solved.
本文在总结现有的纹理映射和反走样算法的基础上,深入研究了纹理映射的基本原理与过程,根据反向纹理映射对纹理随机采样的特殊要求,提出了一种可满足存储空间和寻址时间的纹理压缩存储算法;通过对纹理映射中几何变换理论的进一步深入探讨,提出了整体参数化和面片参数化的概念,并给出了参数化曲面的各种整体参数化方法和面片参数化的几何变换形式;针对现有的两步映射算法所存在的中间曲面—球面的参数化问题,提出一种等积映射方法,较好地实现了由非参数化面片拼接而成的多面体表面的纹理映射;从信号采样的角度深入分析了纹理映射中走样产生的原因,提出了改进的区域求和表算法,使图形生成的效果有所提高;还分析了一般的扫描线算法在透视变换中所存在的问题,提出了一种正确的插值算法,从而解决了整体参数化后多面体表面纹理映射的几何变形问题。
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It is suggested that processes of fine lathing and grinding should be adopted to decrease surface roughness ...
认为采用磨削等精加工工艺来降低表面粗糙度,减少表面尤其是圆角过渡处的加工缺陷,酸洗后及时脱氢等工艺措施,就能避免类似的断裂再次发生。
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First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.
本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt%、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍,再控制无电镀技术之制备参数包括:析镀时间、析镀温度,镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等,研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行,研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时,可得到最高铁含量Fe = 40.55 at%(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT,接著对其作一系列性质分析,最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益,结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准,且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。
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In this paper, morphology transformation laws by plasma modification on cemented carbide (YG16) surface have been studied and influence of decobalt time, decarbonization temperature, decarbonization time and carburizing time main factors on plasma modification lias been investigated.
本文重点研究了YG16硬质合金表面经等离子体改性处理后的组织转变规律,重点探讨了硬质合金表面脱钴时间、脱碳温度、脱碳时间、渗碳时间等主要因素对等离子体改性效果的影响。
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We have found in chapter 3 that LiMn〓O〓 appeared on the surface of LiMnBO glass particales by long time annealing at glass transition temperature have rather good cycling ability.
我们的实验发现,在玻璃转变温度附近长时间退火后,在LiMnBO玻璃微粒表面层生成的尖晶石LiMn〓O〓具有很好的循环特性,这促使我们开展了在晶态LiMn〓O〓表面包覆玻璃态材料,进行表面修饰的研究。
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The results show that the charge efficiency and electrochemical reaction activity of MH electrodes are improved by the treatment.
结果表明MH电极表面还原处理后,提高了电极的充电效率,改善了电极表面的电化学反应活性。
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In addition, this effect was superficial that made the ion-implanted surface smooth and increased its nanohardness, whereas the abrasion resistance of the treated surface to micromotion test was unobvious.
其效应使得处理后试片表面变平整,奈米硬度上升,但在耐磨损磨之耗微振磨耗测试方面,因处理试片深度为极表面,故观测不出显著之变化。
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This study showed that RBC′s E and μm increased after the treatment with neuraminidase. It confirmed that the new ektacytometry had a good sensitivity in measuring E and μm because its results were close to the results reported in the foreign articles and measured by micropipette and flow channel. Since this method is convenient and cheap, it will have a wide range of application.
因此有力地证明了神经氨酸酶对红细胞作用后使其膜剪切弹性模量增大,表面粘度增大,同时也体现了新型激光衍射法在测量红细胞膜的剪切弹性模量和表面粘度时有很好的灵敏性,它与国外文献所报道的微吸管法和流室法测得的结果相近,但操作方便,省时、省力、造价低,因此具有更广泛的应用范围。
- 推荐网络例句
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Plunder melds and run with this jewel!
掠夺melds和运行与此宝石!
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My dream is to be a crazy growing tree and extend at the edge between the city and the forest.
此刻,也许正是在通往天国的路上,我体验着这白色的晕旋。
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When you click Save, you save the file to the host′s hard disk or server, not to your own machine.
单击"保存"会将文件保存到主持人的硬盘或服务器上,而不是您自己的计算机上。