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How Different Seeding Times Give Effects to Quality Characters of High-yield Corn
- Zhang Yuecheng
- Mathematics
- 2008
Objective In natural condition to measure the change regularity of the kenel dry weight,fresh weight,wolume weight,and moisture content and to measure the transformation of the content of…
On Humane Quality Education of College Students
- Zhang Yuecheng
- Education
- 2001
This paper aprobes how to exert humane quality education on college students, and analyzes the surroundings, condition, and the ways of exerting humane quality education. Therefore, this paper can…
The building of university rear-service enter prise civilization
- Zhang Yuecheng
- Education
- 2005
The building of university rear-service enterprise civilization is the base and foundational guarantee. And it is one of the key elements to the success or failure of the rear-service socialized…
Clinical effects of combined Propylthiouracil with Dexamethasone in treatment of hyperthyroidism
- Zhang Yuecheng
- Medicine, Biology
- 2013
TLDR
Preparation of Anchored Mn(III) Complex from Alanine and Salicylaldehyde and Its Catalytic Performancefor Olefin Epoxidation
- Zhang Yuecheng
- Chemistry
- 2005
A ligand with the functional group triethoxysilanyl was prepared by employing the formation of amide bond from the reaction of 3-aminopropyl triethoxysilane with carboxy of a schiff base from the…
Synthesis of Chiral Amino Alcohol Derivatives with Bispidine Moiety
- Zhang Yuecheng
- Chemistry
- 2010
Three N-alkyl-4-piperidones were synthesised through the Michael addition of alkyl amines and methyl acrylate and followed by Dieckmann cyclization and decarboxylation.The N-alkyl-4-piperidones…
A micellar enhanced chemiluminescence method for the determination of nifedipine by reverse flow injection analysis
- Zhang Yuecheng
- Chemistry
- 2011
A novel chemiluminescence system coupled with reverse flow injection technique has been developed for the determination of nifedipine.It was found that the chemiluminescence reaction of luminol with…
The epoxidation of olefins with hydrogen peroxide catalyzed by methyltrioxorhenium
- Zhang Yuecheng
- Chemistry
- 2013
Epoxides are widely used in chemical industry,organic and pharmaceutical synthesis.Generally,epoxides are prepared from the epoxidation of olefins.Traditional epoxidation methods lead to…
Synthesis of Novel Bispidine Derivatives with a Chiral Center
- Zhang Yuecheng
- Chemistry
- 2010
Two novel N-subsutituted bispidine derivatives(7a and 7b)with a chiral center were synthesized through the Michael addition of alkyl amines and methyl acrylate,followed by Dieckmann…
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