查询词典 keywords
- 与 keywords 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Another approach in enhancing the light extraction efficiency of AlGaInP LED was accomplished using a surface roughening process. In this process, the Au(170 nm)/AuBe(260 nm)/Au(170 nm) ohmic contact layers were first deposited on the GaP window layer. After the alloy annealing process (480°C for 10 min), the Be atoms will diffuse into the GaP top layer and form non-uniform clusters. The LED samples were then immersed into a mixture 3H3PO4:1H2O2:1H2O solution for 6 min, resulting in a rough GaP surface. The luminous intensity of the AlGaInP LED can increase from 42 to 50 mcd, that is, an 18% enhancement can be achieved via the present non-photolithography surface roughening process.Keywords: LED, AlGaInP, Cu substrate, Reflector, Surface roughening
在实验的第二部份是开发磷化镓窗口层之粗化制程,我们是藉由正面金/铍欧姆接触电极之熔合制程,使铍扩散至磷化镓层,同时利用铍渗入磷化镓造成之特殊组成,可形成不均匀之蚀刻阻挡,而在磷化镓表面形成粗化,我们发现480℃、10分钟的熔合制程,加上浸泡磷化镓蚀刻溶液6分钟,可将四元发光二极体之发光亮度由42 mcd 提升到50 mcd,经由此无光罩粗化制程可将亮度提升18%,明显提升磷化铝铟镓发光二极体之外部量子效率。
-
Keywords: Photodiode; Photosensitive audion; Volt-ampere characteristic property; Illumination characteristic property; Wavelength
光敏二极管;光敏三极管;伏安特性;光照特性;波长
-
Keywords: formation mechanism of slip surface; autocatalysis of mechano-chemistry; long-term shear strength; open-flow system; microstructure and composition
中文关键词:滑面形成机理;力学化学自催化;微形态;开放流动体系;长期抗剪强度
-
In this engine, the double-byte inverted index is employed to build an inverted index table with every double bytes of the file name, the automatic classification of query results is used to establish a tree structure of query results based on the search topic, and the automatic error correction is adopted to construct a spelling mistake dictionary with the high-frequency search keywords in user query logs.
双字节倒排是对文件名中每两个字节建立倒排索引表,自动分类是对检索结果按主题划分为层次结构,查询自动纠错是以用户查询日志中的高频查询词为数据源构建拼写错误词典。
-
Keywords: bone marrow mesenchyme stem cells,bone marrow mononuclear cells,autoplastic transplantation,coronary heart disease,hepatic injury
中文关键词:骨髓间质干细胞;骨髓单个核细胞;自体移植;冠心病;肝损伤
-
Keywords : variational theory, variable-independence, consistency , formalization, Axiomatic System of Variation, Formal System of Variation
进一步,我们发现,在鹫井久一郎、钱伟长和罗恩的工作中明示的或隐含的有关变量独立的"传统"的理解隐含着矛盾 [6, 9-11, 14]。
-
Keywords axle box base;double quenching;ferrite;fine grain strengthening
抱轴承箱;二次淬火;铁素体;细晶强化
-
Keywords: Male sterile line; Alfalfa ; backcross; tissue culture; cyto-morphology
中文关键词:雄性不育系;苜蓿;回交;组织培养;细胞形态学
-
Keywords :management information system, the data base, the hospital
病历信息管理的特点是信息处理量比较大,所管理的数据涉及的历史可能比较悠久,因此在管理上实现起来有一定的困难。
-
Introduction graduation project subject, the comparison and summarizing of research and development being mutually related, the course of research and development, as well as designing the train of thought with realizing thinking over of details, and finally giving out the realization that author is in the graduation project course.keywords :management information system, the data base, the hospital
本文介绍毕业设计课题的选题背景和意义,相关的研究和开发的比较和综述,研究开发的过程,以及设计思路和实现细节的考虑,最后给出了作者在毕业设计过程中的体会。
- 推荐网络例句
-
In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
-
Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
-
Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。