The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively.
This review focused on the research progress on bacterial flagella,including staining methods,the structure and function of flagella gene,as well as immunegenicity.of flagellin.
EPID plays an important role in quality assurance of radiotherapy accessories including multileaf collimator(MLC)that has been most studied in the past couple ...
Several kinds of tungsten thermonic cathode were introduced.Moreover, the advances in the cathode with a monoatomic layer on the molybdenum substrate were reviewed.
The synthsis methods of N-sulfuryl substitude hetercycles by the reaction of alkyne with sulfamide catalyzed by diverse transition mentals were reviewed in this paper.
The latest development and application prospect of Inonotus obliquus is summarized in following aspects: taxology, bionomy, cultivation on manpower and development tendency in medicine.