In this paper, a simple method of determining the content of protein is given. The fundamental principle of determining its content is that of the decomposition of protein through digestion of the food by adding sulph...In this paper, a simple method of determining the content of protein is given. The fundamental principle of determining its content is that of the decomposition of protein through digestion of the food by adding sulphuric acid. The ammonium sulfate is formed due to the combination of decomposed ammonia and the sulphuric acid . The content of dissociated ammonia in the sample liquid can thus be determined by using ammonium electrode and the contnet of protein in food can be obtained after conversion.展开更多
In this paper, the author discusses the multiple positive solutions for an infinite boundary value problem of first order impulsive singular integro-differential equations on the half line by means of the fixed point ...In this paper, the author discusses the multiple positive solutions for an infinite boundary value problem of first order impulsive singular integro-differential equations on the half line by means of the fixed point theorem of cone expansion and compression with norm type.展开更多
文摘In this paper, a simple method of determining the content of protein is given. The fundamental principle of determining its content is that of the decomposition of protein through digestion of the food by adding sulphuric acid. The ammonium sulfate is formed due to the combination of decomposed ammonia and the sulphuric acid . The content of dissociated ammonia in the sample liquid can thus be determined by using ammonium electrode and the contnet of protein in food can be obtained after conversion.
基金supported by the National Nature Science Foundation of China (10671167)
文摘In this paper, the author discusses the multiple positive solutions for an infinite boundary value problem of first order impulsive singular integro-differential equations on the half line by means of the fixed point theorem of cone expansion and compression with norm type.
