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991.
介绍了低塔强制风冷造粒法生产尿基复合(混)肥的造粒原理和工艺流程,详细叙述了其主要核心技术、建厂面积和主要设备,估算了其技术指标和生产成本,并通过与传统滚筒法复合(混)肥生产工艺和高塔造粒技术进行比较,分析了低塔强制风冷造粒工艺的优点,认为该技术非常适合新建复合(混)肥生产装置,同时也适合小颗粒尿素装置直接改产大颗粒尿素或NK肥、NPK复合(混)肥的技术改造,应用前景广阔。 相似文献
992.
993.
Izumi Satake John H. XinTu Tianming Aran HansuebsaiKenji Ando Tetsuya SatoKanji Kajiwara Seiji Ohsawa 《Progress in Organic Coatings》2011,72(3):528-540
This article compares color assessments of automotive exteriors at four locations in China, Thailand and Japan. This study employed painted panels of twelve colors, thirty sensory words and fifteen pairs of emotion variables. It also used reference figures of nine cars that included four styling categories, namely sedans, compacts, sport utility vehicles and sports cars. The results of like-dislike tests revealed that basic automotive exterior colors, such as black, white and red, were highly preferred across locations. However, geographical differences are apparent in the preference for some non-basic colors. To elucidate these geographical differences, a Chi-square test and principal component analysis were performed on the data on emotion variables. The results revealed both similarities and differences in color preferences among the four locations. Color preferences were similar in Hong Kong and Shanghai when simply evaluated by color samples. However, similar preferences for automotive exterior colors were observed in Hong Kong, Kyoto and Bangkok, but not in Shanghai. These results suggest that there is fluctuation in the emotion evoked by a color when the color is considered in the context of automotive exteriors. Therefore, this study indicates that automotive sales can be secured in the global marketplace by creating a single palette of exterior colors based on similar color preferences across countries. However, these results also indicate that preparing market-specific automotive-color line-ups can be an effective marketing strategy. 相似文献
994.
Oriane Mollet Aurélien CucheAurélien Drezet Serge Huant 《Diamond and Related Materials》2011,20(7):995-998
Leakage-radiation microscopy of a thin gold film demonstrates the ability of an ensemble of fluorescent diamond nanoparticles attached onto the apex of an optical tip to serve as an efficient near-field surface-plasmon polariton launcher. The implementation of the nanodiamond-based tip in a near-field scanning optical microscope will allow for an accurate control on the launching position, thereby opening the way to scanning plasmonics. 相似文献
995.
几种混凝剂应用于活性染料印染废水的脱色研究 总被引:2,自引:0,他引:2
应用PAC、BT-03、BT-04三种混凝剂处理了活性染料模拟废水和实际印染废水,研究了它们对以活性染料为主的印染废水脱色效果。结果表明,BT-03脱色效果较好。 相似文献
996.
In the laboratory, the performance of color constancy has always been unstable. The variables posed by the subjects themselves tend to be neglected. In this study, a simple color‐mixing test was used to sort subjects into three groups. They were also provided with hue and brightness in a fixed color order as guidance during experimental tasks in an attempt to observe any changes in cognitive skills among subjects of varying color‐mixing abilities under changed illuminations. Three hypotheses were proposed: (1) Matching hypothesis: people remember and apply the spatial locations of color surrounds to the target color to achieve color constancy; (2) Comparing hypothesis: people identify the relative difference between color surrounds to achieve color constancy; and (3) Reasoning hypothesis: people compare the color surrounds and refer to color knowledge accumulated in the past to achieve color constancy through reasoning. The experimental results were as follows if the Comparing hypothesis is taken into account, (a) when hue guidance is hidden the subjects' identification rate (IR) performance supported the Reasoning hypothesis; (b) when hue guidance was shown, the IR performance of subjects in all three groups supported the Matching hypothesis. Based on these results, this study offers two recommendations: (a) color surrounds with a fixed relative location should be avoided because spatial location memory leading to people using matching skills and (b) subjects should be screened based on their color‐mixing ability because significant differences in color constancy performance exist between people with varying levels of color‐mixing ability. © 2010 Wiley Periodicals, Inc. Col Res Appl, 2010 相似文献
997.
998.
彩色复制中的色域映射方法 总被引:8,自引:0,他引:8
由于各种颜色设备所能表现的颜色范围(即色域)各不相同,为实现彩色图像的复制就需要使用色域映射技术和算法.基于色域映射的重要性,介绍了色域映射的相关问题和各种映射算法,并分析比较了各种算法的优缺点和色域映射的效果.最后,阐明色域映射评价的标准是在映射前后得到"尽可能准确或接近"的视觉效果,针对的是整个图像而非某个具体的颜色. 相似文献
999.
芝麻油质量现状及定量检测方法 总被引:3,自引:1,他引:3
针对芝麻油含量的定量检测问题,该文介绍了芝麻油的分类、质量现状和感官鉴别方法。重点介绍了用浓硫酸显色法测定芝麻油含量的方法,即在待测样品中加入三氟甲烷和浓硫酸后,与标准色列比色,确定芝麻油的含量,该法具有简便、快速、实用和结果准确等特点。 相似文献
1000.