《古老中国的爱情与战争——来自〈诗经〉的声音》(Love and War in Ancient China——voices from the Shijing)一书系国际著名语言学家王士元先生的新作,2013年由香港城市大学出版社出版。近年来,王士元先生一直致力于推动语言学与遗...《古老中国的爱情与战争——来自〈诗经〉的声音》(Love and War in Ancient China——voices from the Shijing)一书系国际著名语言学家王士元先生的新作,2013年由香港城市大学出版社出版。近年来,王士元先生一直致力于推动语言学与遗传学、人类学、考古学等学科跨学科交融,这本著作充分体现了王先生跨学科、多视角的研究风格。本书的理想目标是即使英语世界的普罗大众也能借由此书了解中华文化的起源,所以该书既有中国古代基本文化知识的推介,亦有前沿学术观点的点拨,深入浅出,通俗易懂。本书正文共分为两大部分,共十一章。正文前面是作者的小传和作者所撰写的序言、展开更多
[Objective] The aims were to explore the relationship between the contents of fruit mineral elements and quality features of the ＇Fuji＇ apple, screen major mineral elements of the fruit affecting fruit quality featu...[Objective] The aims were to explore the relationship between the contents of fruit mineral elements and quality features of the ＇Fuji＇ apple, screen major mineral elements of the fruit affecting fruit quality features, and set up optimum proposals of fruit mineral elements for good fruit qualities, so as to provide a theoretical basis for the reasonable orchard soil and foliar fertilizer applications to increase fruit quality and reduce the physiological diseases related to the ＇Fuji＇ apple. [Methods] The fruit mineral elements and quality indicators of ＇Fuji＂ apples were in- vestigated and analyzed, which were collected from the 153 commercial apple or- chards of ＂Fuji＇ apple located in 51 counties. The variable importance for projection （VlP） of partial least squares regression （PLS） method was used to analyze the model effect and weight analysis impact of the fruit mineral element contents to fruit quality, screen out major factors of fruit mineral elements influencing the different fruit qualities, and set up the regression equation of the fruit qualities and major fruit mineral elements. Linear programming was used to obtain optimum proposals of the fruit mineral elements to achieve good ＇Fuji＇ apple qualities. [Results] The mineral elements content and quality characteristics in ＂Fuji＇ apple fruit had great differences in the different produce regions in which the maximum content of nitro- gen, iron, zinc and boron in the ＇Fuji＇ fruit were12.06, 6.17, 7.7, and 10.08 times greater than the minimum respectively, and the differences for titratable acid and the SSC/TA ratio were 2.33 and 2.16 times respectively. The correlation analysis between the fruit mineral element contents and qualities showed that the nitrogen content of fruit had a significantly negative correlation with the soluble solid content, SSC/TA ratio and red color area, while the calcium and iron contents in the fruit were in significantly positive correlation with the soluble solid content and SSC/TA ratio. The model effect and weight analysis showed that the content of nitrogen and iron in the fruit had a greater influence on the integral fruit quality, followed by phosphorus, potassium and calcium. The variable importance for projection （VlP） technology of PLS found that the mean fruit weight was primarily affected by nitro- gen, phosphorus and potassium, and the soluble solid was primarily affected by ni- trogen, calcium and iron, while the red color area was primarily affected by nitro- gen, potassium, calcium, iron and zinc. The regression equation between fruit quality and mineral element contents showed that the mean fruit weight had a greater pos- itive effect coefficient with the content of phosphorus and potassium, and a greater negative effect coefficient with the content of nitrogen in the fruit. Moreover, the sol- uble solid had the largest negative effect coefficient with nitrogen and largest posi- tive effect coefficient with calcium and iron in the fruit. [Conclusion] The maximum content of soluble solid and titratable acid were 1.5 times more than the minimum, and nitrogen, iron, zinc and boron were 6 times more than in the ＇Fuji＇ apple fruit in the different produce regions. Therefore, it is a key technological measure to improve the overall qualities of the ＂Fuji＇ apple by decreasing the content of nitrogen, and increasing the contents of iron, phosphorus, potassium and calcium in the fruit.展开更多
In this paper, we categorify the algebra Uq（sl2） with the same approach as in [A. Lauda, Adv. Math. （2010）, arXiv：math.QA/0803.3662; M. Khovanov, Comm. Algebra 11 （2001） 5033]. The algebra U =Uq（sl2） is obtai...In this paper, we categorify the algebra Uq（sl2） with the same approach as in [A. Lauda, Adv. Math. （2010）, arXiv：math.QA/0803.3662; M. Khovanov, Comm. Algebra 11 （2001） 5033]. The algebra U =Uq（sl2） is obtained from Uq（sl2） by adjoining a collection of orthogonal idempotents 1λ,λ ∈ P, in which P is the weight lattice of Uq（sl2）. Under such construction the algebra U is decomposed into a direct sum λ∈p 1λ,U1λ. We set the collection of λ∈ P as the objects of the category U, 1-morphisms from λ to λ′ are given by 1λ,U1λ, and 2-morphisms are constructed by some semilinear form defined on U. Hence we get a 2-category u from the algebra Uq（sl2）.展开更多
This study analyses an iconic photograph of Israeli paratroopers, photographed in Jerusalem in 1967. It explores how visual and formal structural components in the image function in this photograph and how they contri...This study analyses an iconic photograph of Israeli paratroopers, photographed in Jerusalem in 1967. It explores how visual and formal structural components in the image function in this photograph and how they contribute to the process of creating an icon. It explores the mechanisms that exist in visual icons and addresses the question of why some press photographs turn into iconic images while other do not, and if there is a connection between the visual structural elements in the images and the way they are perceived by the public. The study discusses how this visual logic correlates with other elements such as public opinion and myths.展开更多
2015年6月12日至6月14日,第七届演化语言学国际研讨会(The 7th International Conference in Evolutionary Linguistics)在南开大学成功举行。会议共收到87篇论文,来自美国、法国、爱沙尼亚、捷克、新加坡、中国大陆及中国香港、中国台...2015年6月12日至6月14日,第七届演化语言学国际研讨会(The 7th International Conference in Evolutionary Linguistics)在南开大学成功举行。会议共收到87篇论文,来自美国、法国、爱沙尼亚、捷克、新加坡、中国大陆及中国香港、中国台湾的近百名学者参加了此次盛会。开幕式由南开大学石锋教授主持,王士元先生致开幕辞。王士元先生指出:"没有演化论的照耀一切都是黯淡的。一系列的演化语言学会议对研究语言发展的意义重大。展开更多
文摘《古老中国的爱情与战争——来自〈诗经〉的声音》(Love and War in Ancient China——voices from the Shijing)一书系国际著名语言学家王士元先生的新作,2013年由香港城市大学出版社出版。近年来,王士元先生一直致力于推动语言学与遗传学、人类学、考古学等学科跨学科交融,这本著作充分体现了王先生跨学科、多视角的研究风格。本书的理想目标是即使英语世界的普罗大众也能借由此书了解中华文化的起源,所以该书既有中国古代基本文化知识的推介,亦有前沿学术观点的点拨,深入浅出,通俗易懂。本书正文共分为两大部分,共十一章。正文前面是作者的小传和作者所撰写的序言、
基金Supported by the Special Funds for Forestry Industry Research in Public Welfare(201404720)the National Science and Technology Support Program(2014BAD16B02-3)the Science and Technology Innovation Ability Construction Projects of Beijing Academy of Agriculture and Forestry Science(KJCX20150403)~~
文摘[Objective] The aims were to explore the relationship between the contents of fruit mineral elements and quality features of the ＇Fuji＇ apple, screen major mineral elements of the fruit affecting fruit quality features, and set up optimum proposals of fruit mineral elements for good fruit qualities, so as to provide a theoretical basis for the reasonable orchard soil and foliar fertilizer applications to increase fruit quality and reduce the physiological diseases related to the ＇Fuji＇ apple. [Methods] The fruit mineral elements and quality indicators of ＇Fuji＂ apples were in- vestigated and analyzed, which were collected from the 153 commercial apple or- chards of ＂Fuji＇ apple located in 51 counties. The variable importance for projection （VlP） of partial least squares regression （PLS） method was used to analyze the model effect and weight analysis impact of the fruit mineral element contents to fruit quality, screen out major factors of fruit mineral elements influencing the different fruit qualities, and set up the regression equation of the fruit qualities and major fruit mineral elements. Linear programming was used to obtain optimum proposals of the fruit mineral elements to achieve good ＇Fuji＇ apple qualities. [Results] The mineral elements content and quality characteristics in ＂Fuji＇ apple fruit had great differences in the different produce regions in which the maximum content of nitro- gen, iron, zinc and boron in the ＇Fuji＇ fruit were12.06, 6.17, 7.7, and 10.08 times greater than the minimum respectively, and the differences for titratable acid and the SSC/TA ratio were 2.33 and 2.16 times respectively. The correlation analysis between the fruit mineral element contents and qualities showed that the nitrogen content of fruit had a significantly negative correlation with the soluble solid content, SSC/TA ratio and red color area, while the calcium and iron contents in the fruit were in significantly positive correlation with the soluble solid content and SSC/TA ratio. The model effect and weight analysis showed that the content of nitrogen and iron in the fruit had a greater influence on the integral fruit quality, followed by phosphorus, potassium and calcium. The variable importance for projection （VlP） technology of PLS found that the mean fruit weight was primarily affected by nitro- gen, phosphorus and potassium, and the soluble solid was primarily affected by ni- trogen, calcium and iron, while the red color area was primarily affected by nitro- gen, potassium, calcium, iron and zinc. The regression equation between fruit quality and mineral element contents showed that the mean fruit weight had a greater pos- itive effect coefficient with the content of phosphorus and potassium, and a greater negative effect coefficient with the content of nitrogen in the fruit. Moreover, the sol- uble solid had the largest negative effect coefficient with nitrogen and largest posi- tive effect coefficient with calcium and iron in the fruit. [Conclusion] The maximum content of soluble solid and titratable acid were 1.5 times more than the minimum, and nitrogen, iron, zinc and boron were 6 times more than in the ＇Fuji＇ apple fruit in the different produce regions. Therefore, it is a key technological measure to improve the overall qualities of the ＂Fuji＇ apple by decreasing the content of nitrogen, and increasing the contents of iron, phosphorus, potassium and calcium in the fruit.
基金Supported by National Natural Science Foundation of China under Grant Nos. 10975102, 10871135, 11031005, and 10871227
文摘In this paper, we categorify the algebra Uq（sl2） with the same approach as in [A. Lauda, Adv. Math. （2010）, arXiv：math.QA/0803.3662; M. Khovanov, Comm. Algebra 11 （2001） 5033]. The algebra U =Uq（sl2） is obtained from Uq（sl2） by adjoining a collection of orthogonal idempotents 1λ,λ ∈ P, in which P is the weight lattice of Uq（sl2）. Under such construction the algebra U is decomposed into a direct sum λ∈p 1λ,U1λ. We set the collection of λ∈ P as the objects of the category U, 1-morphisms from λ to λ′ are given by 1λ,U1λ, and 2-morphisms are constructed by some semilinear form defined on U. Hence we get a 2-category u from the algebra Uq（sl2）.
文摘This study analyses an iconic photograph of Israeli paratroopers, photographed in Jerusalem in 1967. It explores how visual and formal structural components in the image function in this photograph and how they contribute to the process of creating an icon. It explores the mechanisms that exist in visual icons and addresses the question of why some press photographs turn into iconic images while other do not, and if there is a connection between the visual structural elements in the images and the way they are perceived by the public. The study discusses how this visual logic correlates with other elements such as public opinion and myths.
文摘2015年6月12日至6月14日,第七届演化语言学国际研讨会(The 7th International Conference in Evolutionary Linguistics)在南开大学成功举行。会议共收到87篇论文,来自美国、法国、爱沙尼亚、捷克、新加坡、中国大陆及中国香港、中国台湾的近百名学者参加了此次盛会。开幕式由南开大学石锋教授主持,王士元先生致开幕辞。王士元先生指出:"没有演化论的照耀一切都是黯淡的。一系列的演化语言学会议对研究语言发展的意义重大。
