In this paper,using concentration data of PM2. 5in 2013 in China and referring to a lot of literature,we preliminary studied the pollution of fine particulate matter and summarized PM2. 5source apportionment in the ke...In this paper,using concentration data of PM2. 5in 2013 in China and referring to a lot of literature,we preliminary studied the pollution of fine particulate matter and summarized PM2. 5source apportionment in the key cities in China. Our results showed that PM2. 5showed significant spatial and temporal distribution; high surface concentrations of PM2. 5concentrated mainly in the North China Plain,the Sichuan Basin,Yangtze River Delta and other regions; the average annual concentration of PM2. 5was about 80μg / m3 in North China Plain; Seasonal changes in the concentration of PM2. 5was winter > spring > autumn > summer; fired sources,industrial sources,vehicle exhaust were the major sources of PM2. 5; motor vehicle exhaust mostly contributed 10%- 30% to PM2. 5. This review provides a fundamental understanding of PM2. 5source apportionment and serves as an important reference for future source apportionment studies to be widely conducted in China.展开更多
Pride and prejudice continues to be popular today not only because of its memorable characters, but also because of the perfect use of rhetoric-irony. Irony plays the decisive role in characterization and plot develop...Pride and prejudice continues to be popular today not only because of its memorable characters, but also because of the perfect use of rhetoric-irony. Irony plays the decisive role in characterization and plot development. We should pay attention on the irony words in dialogue, scene irony and dramatic irony. Irony can be achieved joking, teasing and the effect of sarcasm, makes the work lively and humorous and full of artistic appeal. Irony in Pride and Prejudice shaped fresh characters. From the point of view of the plot development, the whole story seems to be made of many ironies which make the work so fun. Pride and Prejudice is a work worth reading a hundred times for readers.展开更多
The paper takes the content of Virginia Woolf's diary and novel as materials to analyze three of her most important theories which are"subjective vision","moment of being"and"character as ...The paper takes the content of Virginia Woolf's diary and novel as materials to analyze three of her most important theories which are"subjective vision","moment of being"and"character as center"to explain her literary experimentation which aims to find a new form for a new novel in an era of modernist literature.展开更多
Why do I learn Chinese? It is because I like detective stories, riddles and poetry. You may ask me what is the relationship between them? Well. Let me explain. Many years ago I chanced upon a detective novel Judge Dee...Why do I learn Chinese? It is because I like detective stories, riddles and poetry. You may ask me what is the relationship between them? Well. Let me explain. Many years ago I chanced upon a detective novel Judge Dee Mysteries whose protagonist is a great judge in the Tang Dynasty. I展开更多
Metal glycinate chelates are formed by glycine and metal compounds through chemical reactions.Calcium glycinate,magnesium glycinate and zinc glycinate are kinds of new-type and ideal nutrient supplements,which have sa...Metal glycinate chelates are formed by glycine and metal compounds through chemical reactions.Calcium glycinate,magnesium glycinate and zinc glycinate are kinds of new-type and ideal nutrient supplements,which have satisfactory physico-chemical properties and bioactivities.They are important for prophylaxis and treat metal deficiency.The structural characterization shows that the metal ion is bonded to the amino and carboxyl group to form two five-membered rings.This paper mainly studies the structure characterization of the metal chelated glycinates by their solubility,infrared spectrum,thermal analysis,mass spectrometry,polycrystal difrac-tion,the metal contents and glycine contents of calcium glycinate,magnesium glycinate and zinc glycinate.展开更多
the Streetcar named Desire,written by Tennessee Williams,is a well-known play and of course wins a great honor for Tennessee Williams.Many critics gave it lot of attention and make many comments on the heroin’s trage...the Streetcar named Desire,written by Tennessee Williams,is a well-known play and of course wins a great honor for Tennessee Williams.Many critics gave it lot of attention and make many comments on the heroin’s tragedy life,according to the study of the predecessors,this paper will make an analysis of the causes of the heroin’s tragedy life.展开更多
文摘In this paper,using concentration data of PM2. 5in 2013 in China and referring to a lot of literature,we preliminary studied the pollution of fine particulate matter and summarized PM2. 5source apportionment in the key cities in China. Our results showed that PM2. 5showed significant spatial and temporal distribution; high surface concentrations of PM2. 5concentrated mainly in the North China Plain,the Sichuan Basin,Yangtze River Delta and other regions; the average annual concentration of PM2. 5was about 80μg / m3 in North China Plain; Seasonal changes in the concentration of PM2. 5was winter > spring > autumn > summer; fired sources,industrial sources,vehicle exhaust were the major sources of PM2. 5; motor vehicle exhaust mostly contributed 10%- 30% to PM2. 5. This review provides a fundamental understanding of PM2. 5source apportionment and serves as an important reference for future source apportionment studies to be widely conducted in China.
文摘Pride and prejudice continues to be popular today not only because of its memorable characters, but also because of the perfect use of rhetoric-irony. Irony plays the decisive role in characterization and plot development. We should pay attention on the irony words in dialogue, scene irony and dramatic irony. Irony can be achieved joking, teasing and the effect of sarcasm, makes the work lively and humorous and full of artistic appeal. Irony in Pride and Prejudice shaped fresh characters. From the point of view of the plot development, the whole story seems to be made of many ironies which make the work so fun. Pride and Prejudice is a work worth reading a hundred times for readers.
文摘The paper takes the content of Virginia Woolf's diary and novel as materials to analyze three of her most important theories which are"subjective vision","moment of being"and"character as center"to explain her literary experimentation which aims to find a new form for a new novel in an era of modernist literature.
文摘Why do I learn Chinese? It is because I like detective stories, riddles and poetry. You may ask me what is the relationship between them? Well. Let me explain. Many years ago I chanced upon a detective novel Judge Dee Mysteries whose protagonist is a great judge in the Tang Dynasty. I
文摘Metal glycinate chelates are formed by glycine and metal compounds through chemical reactions.Calcium glycinate,magnesium glycinate and zinc glycinate are kinds of new-type and ideal nutrient supplements,which have satisfactory physico-chemical properties and bioactivities.They are important for prophylaxis and treat metal deficiency.The structural characterization shows that the metal ion is bonded to the amino and carboxyl group to form two five-membered rings.This paper mainly studies the structure characterization of the metal chelated glycinates by their solubility,infrared spectrum,thermal analysis,mass spectrometry,polycrystal difrac-tion,the metal contents and glycine contents of calcium glycinate,magnesium glycinate and zinc glycinate.
文摘the Streetcar named Desire,written by Tennessee Williams,is a well-known play and of course wins a great honor for Tennessee Williams.Many critics gave it lot of attention and make many comments on the heroin’s tragedy life,according to the study of the predecessors,this paper will make an analysis of the causes of the heroin’s tragedy life.