共查询到20条相似文献,搜索用时 70 毫秒
1.
用薄层色谱法对88种国内外不同品牌的喷墨打印机墨水进行了种类的鉴定。根据色谱中所得斑点个数及比移值Rf的不同,可将88种不同品牌的墨水分为11类。 相似文献
2.
3.
4.
5.
6.
近年来,有机发光二极管(OLED)被广泛应用于智能手机等中小尺寸显示屏,并逐步进入电视等大尺寸显示领域和照明市场。随着OLED平板显示新时代的到来,对显示屏的彩色化与图案化研究提出了更高要求。与传统真空蒸镀技术相比,喷墨打印技术更容易实现大面积器件的彩色化和复合功能材料的图案化,且工艺简单,成本低廉,并可进行柔性器件加工。本文综述了采用喷墨打印技术制备OLED显示屏的研究现状,并系统介绍了喷墨打印设备的发展历程,通过优化bank结构提高显示屏的分辨率,优化墨水配方及组成配比抑制喷墨液滴的“咖啡环”效应,从而提高显示器发光均匀性,最后对国内外该技术产业进行了概述与展望。 相似文献
7.
将银纳米粒子制备成可打印的墨水,采用喷墨打印方法将此墨水打印在纸张表面,作为柔性表面增强拉曼散射基底。重点研究了不同银墨水倍数和不同打印层数对拉曼检测灵敏度的影响。实验结果表明,以55 mmol/L浓度银墨水作为打印原料,在打印7层时,基底对罗丹明(R6G)分子的检测浓度低于10-10 mol/L,最大增强因子约为1.92×109,相对误差分析计算结果为14.3%。同时,在苹果的曲面上对该基底的拉曼增强效果进行了实际检测。最后,结合基底的扫描电子显微镜(SEM)结果,采用有限时域差分(FDTD)软件对该基底的电磁场增强特性进行了计算。 相似文献
8.
9.
探索将信息技术应用到中学物理课堂教学设计之中,用Word2003中绘图工具栏设计(绘制)中学物理课堂教学过程结构的一种简便、实用方法. 相似文献
10.
11.
Hong-Qi Li Ting-Qi Ren Yun-Hai Zhang Xing-Lei Xu 《International Journal of Theoretical Physics》2011,50(11):3560-3570
A kind of new continuous variable three-mode coherent-entangled state (CV-CES) is proposed in Fock space by the technique
of integration within an ordered product (IWOP), which exhibits both the properties of coherent state and entangled state,
and spans a complete and orthonormal representation. The conjugate state of CV-CES is derived by Fourier transformation. Moreover,
the simple experimental protocol of generating a CV-CES is proposed by beam-splitters. As applications of this CV-CES, a three-mode
entangled state and a three-mode squeezing-Fresnel operator are constructed. 相似文献
12.
XU Shi-Min XU Xing-Lei LI Hong-Qi WANG Ji-Suo 《理论物理通讯》2009,51(2):209-214
We construct four linear composite operators for a two-particle system and give common eigenvectors of those operators. The technique of integration within an ordered product of operators is employed to prove that those common eigenvectors are complete and orthonormal. Therefore, a new intermediate coordinate-momentum representation for a two-particle system is proposed and applied to some two-body dynamic problems. 相似文献
13.
Oshurko V. B. Mandel’ A. M. Karpova E. E. Sharts A. A. Solomakho K. G. 《Technical Physics》2019,64(5):647-653
Technical Physics - In this paper, we propose a new principle of high-performance 3D printing for non-ferrous metal melts. The crystallization temperature may increase in the lower part of the... 相似文献
14.
15.
16.
17.
低光泽度印刷色谱色貌数据组的建立与评价 总被引:1,自引:0,他引:1
色貌预测是现代颜色科学领域的基本理论和技术。为了评价低光泽度彩色印刷色谱的色貌,以丽印胶版纸印制的彩色印刷色谱为研究对象,根据颜色科学和心理物理学相关实验,建立其色貌参数样本数据组。采用相对系数R2和差异系数CV等数理统计方法,评价这种印刷色谱中Y-M内页在三种不同的照明光源下色貌的视觉评估结果。实验数据分析表明,在D65、A和TL84三种光源中,人眼在A光源下对颜色的识别能力明显不同于D65和TL84光源;同样在这三种光源中人眼对明度和色调的评估准确度最高,彩度最差。 相似文献
18.
Henderson B 《The Journal of the Acoustical Society of America》2002,111(2):735-747
An experimental investigation into the sound-producing characteristics of moderately and highly underexpanded supersonic impinging jets exhausting from a round convergent nozzle is presented. The production of large plate tones by impingement on a square plate with a side dimension equal to 12 nozzle exit diameters is studied using random and phase-locked shadowgraph photography. Discrete frequency sound is produced in the near-wall region of the jet when a Mach disk occurs upstream of the standoff shock wave. Tones cease when the plate distance is approximately 2.2 free-jet cell lengths and the first and second shock waves are located in the free-jet positions. The production of impulsive sound appears to be associated with the collapse of the standoff shock wave during a portion of the oscillation cycle. Results from unsteady plate-pressure measurements indicate that plane-wave motion occurs in the impingement region and a secondary pressure maximum is observed on the plate adjacent to the flow region where sound appears to originate. 相似文献
19.
一种可编程PMD模拟器 总被引:5,自引:3,他引:2
为了研究光纤通信中的偏振模色散(PMD)及其对高速光通信系统的影响和补偿技术,研制了一种可编程控制的PMD模拟器,它由6组双折射晶体和磁光晶体组成,群时延差(DGD)变化范围为±(0.3~35) ps,可设为不同平均值的Maxwell统计分布随机变化,也可以设为其它要求的数学分布.实验证明,该模拟器测量值与理论符合得很好,且具有较高的重复性和稳定性,响应时间小于1 ms.这种模拟器可用于10 Gb/s和40 Gb/s光传输系统PMD问题的研究. 相似文献