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Estimation of SO2 emission factors from copper smelting industry in Yunnan Province, ChinaZHANG Yan(张艳), Tang Xiao-long(唐晓龙), YI Hong-hong(易红宏), MA Jie-yun(马洁云)(College of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China)Abstract:Copper smelting is a significant source of SO2 emission. It is important to quantify SO2 emissions from......
水热法一步合成氧化锌纳米棒及其场发射特性的研究 单云1,曾葆青1,田时开1,董建会2 (1.电子科技大学物理电子学院,成都,610054;2.中北大学理学院物理系,太原,030051) 摘要:利用极其简单的方法,即将氯化锌溶液和氨水按一定配比混合进行水浴加热制备了ZnO纳米棒,其直径约为100nm.利用扫描电子显微镜和能谱仪对其结构和成分进行了分析.场发射测试结果表明,所制备的ZnO纳米棒有较低的开启场和阈值场,分别为2.7V/μm和4.95V/μm,其场增强因子为5390.这样高的场增强因子来源于氧化锌参差的层状结构. 关键词:ZnO纳米棒; 场发射; 水热法; ZnO nanorods; field emission; hydrothermal method; [全文内容正在添加中] ......
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strong vivid red emission located at 617 nm(5 D0-7 F2 transition of Eu3+) under the optimal excitation wavelength of 275 nm(4 f8-4 f75 d1 transition of Tb3+,8 S7/2→6IJ transition of Gd3+).The presence of Gd3+ and Tb3+ excitation bands on the PLE spectra monitoring the Eu3+ emission directly gives an evidence of Tb3+ → Eu3+ and Gd3+ → Eu3+ energy transfer,The emission intensity varies with the Eu3......
strong vivid red emission located at 617 nm(5 D0-7 F2 transition of Eu3+) under the optimal excitation wavelength of 275 nm(4 f8-4 f75 d1 transition of Tb3+,8 S7/2→6IJ transition of Gd3+).The presence of Gd3+ and Tb3+ excitation bands on the PLE spectra monitoring the Eu3+ emission directly gives an evidence of Tb3+ → Eu3+ and Gd3+ → Eu3+ energy transfer,The emission intensity varies with the Eu3......
目减少及表面结构受到损害,导致碳纳米管场发射特性变差. 关键词:碳纳米管; 场发射; Carbon nanotube (CNTs); Field emission; [全文内容正在添加中] ......
ZnO薄膜的场致发射特性的影响,提出了低成本丝网印刷制备大面积ZnO薄膜阴极热烧结和退火处理的工艺,根据样品的形貌,发射特性和均匀稳定发光的阳极可以判断,最高温度843K的热烧结和823K,10min的退火处理适实用于制作大面积纳米ZnO薄膜场致发射阴极. 关键词:丝网印刷; 纳米ZnO薄膜; 场致发射冷光源; screen-printed; nano-ZnO film; field emission; [全文内容正在添加中] ......
, Chosun University, Gwangju 507-759, Korea摘 要:An optimal test method for paint is proposed; additionally, the Field and Laboratory Emission Cell (FLEC...Measurements of Formaldehyde and TVOC Emission from Paints and Coating Materials using Small Chamber Method for Building CompositesJin-A KIM1,2,Sumin KIM3,Hyun-Joong KIM2,Janghoo SEO41. National......
J. Cent. South Univ. (2016) 23: 189-200 DOI: 10.1007/s11771-016-3062-8 Theoretical generalization of Markov chain random field from potential function perspective HUANG Xiang(黄翔)1, WANG Zhi-zhong(王志..., China Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: The inner relationship between Markov random field (MRF) and Markov chain random field (MCRF) is discussed......
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