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Proceedings Article
Analysis of Investment Value of Listed Companies in New Energy Lithium Battery Industry Based on Factor Model
Ruohan Sun
As a clean, efficient and pollution-free new energy source, lithium batteries have entered various industries. The article is based on the macro environment background of the new energy lithium battery, the factor analysis method is used to calculate the 3 most representative financial indicators of...
Proceedings Article
On English Enlightenment Education for 3-4-year-old Children in Multimedia Learning Environment
Huanhuan Ren, Chi Ma
English enlightenment education exerts much effects on 3-4-year-old children and may be positively influential to future education of the children. It's concurred that there are many reasons for applying mobile multimedia into English enlightenment education. In this thesis, it's suggested that the implementation...
Proceedings Article
Synthesis of 4-chloro-6-methoxy-2-methyl-3-nitroquinoline
Lei Zhao, Fei Lei, Yuping Guo
4-Chloro-6-methoxy-2-methyl-3-nitroquinoline (1) was synthesized from 4-methoxyaniline through three steps including Cyclization, Nitrification and Chlorination. The structure of the target product (1) was confirmed by 1H NMR and MS. This method started with cheap raw materials was of simple experimental...
Proceedings Article
Synthesis of N-methylthieno [2, 3-d] Pyrimidin-4-amine Thienopyrimidine
Huajun Lei, Min Wang, Jiaqian Han, Zhou Lan
Thieno[2,3-d]pyrimidine is a key intermediate in many biologically active compounds such as GDC-0941 and BKM 120. In this work, a rapid synthetic method for compound (4) was established. The compound (4) was synthesized from the commercially available methyl 2-aminothiophene-3-carboxylate and formimidamide...
Proceedings Article
Synthesis of 4- (Thieno [3, 2-d] pyrimidin-4-yl) Morpholine
Huajun Lei, Linxiao Wang, Yingjia Xiong, Zhou Lan
4-(Thieno[3,2-d]pyrimidin-4-yl)morpholine derivatives is an important intermediate which inhibited tumor necrosis factor alpha and nitric oxide. In this work, a rapid and green synthetic method for compound (5) was established. The compound (5) was synthesized from the commercially available methyl 3-aminothiophene-2-carboxylate...
Proceedings Article
Synthesis of N-(3-chloro-4-fluorophenyl)-6-nitro-7-((tetrahydrofuran-3-yl) oxy) quinazolin-4-amine
Caolin Wang, Yiqiang Ouyang, Zhou Lan
Afatinib (1) exhibited potential biological activities in medicine. There are shortcomings in the synthesis route of afatinib in the literature, the product yield is low and the post-processing is complicated. Therefore, in this paper, the two-step synthetic route of afatinib was optimized. The two-step...
Proceedings Article
Synthesis of 3-phenyl-1H-pyrazole Derivatives
Xiaobo Liu, Shan Xu, Yinhua Xiong
3-phenyl-1H-pyrazole (1) is an important intermediate for the synthesis of many biologically active compounds. It was synthesized from acetophenone (2) and hydrazine through two steps including Knoevenagel condensation, Cyclization reaction reaction. In this paper, three novel 3-phenyl-1H-pyrazole derivatives...
Proceedings Article
Research on Real Estate Industry Cost Stickiness and Its Influencing Factors
Yuemei Wang
The research on cost stickiness behavior is mainly about sales & administrative cost and manufacturing industry, lacking studies on particular niche business. Therefore, the real estate industry paid highly attention was chosen as the research object and an empirical analysis of cost stickiness behavior...
Proceedings Article
An Interactive Intelligent Search Engine Model Research Based on User Information Preference
Dan Meng, Xu Huang
Web service is very important for both e-commerce and e-government. However, web service process based on syntax level can’t deal with some user query very effectively. In order to make user get more information on the internet, semantic web is presented and a lot of related research results have been...
Proceedings Article
Fuzzy Distance of Trapezoidal Fuzzy Numbers
Shan Huo Chen, Chien-Chung Wang
Fuzzy distance is applied on data analysis, classification, and production positioning analysis widely. In this paper, We introduction a fuzzy distance by using graded mean integration representation of generalized fuzzy number and the span of fuzzy number, We also discuss the distance of the linguistic...
Proceedings Article
Super-fair Platforms Widely Hidden in Multinational Securities Business
Ruan Jishou, Jun He, Qi Dai
A general phenomenon puzzles all investors is that on one hand, most individual investors believe they need to construct the portfolio consisting of 15 or more stocks to prevent risk because that large investment companies frequently get high returns is due to they obey the existing investment theory...
Proceedings Article
90-nm Wideband Optical Amplifier Including an Semiconductor Optical Amplifier and a DCF-based Raman Fiber Amplifier with Gain Clamping and Dispersion Compensation
Chia-Hsiung Chang, Hermann Lin
We have experimentally demonstrated the gain-clamped wideband optical amplifier using a DCF-based Raman amplifier and an semiconductor optical amplifier for 90-nm wide bandwidth amplification with good gain flatness (of 3 dB) as well as dispersion compensation of 10Gb/s DWDM signals over 100-km SMF link....