[Objective] This paper aims to empirically analyze the situation of fertilizer overuse in China, considering that fertilizer, important for China＇s crop production, has brought serious environmental pollution to Chin...[Objective] This paper aims to empirically analyze the situation of fertilizer overuse in China, considering that fertilizer, important for China＇s crop production, has brought serious environmental pollution to China due to over application. [Method] Based on field survey data in four provinces of China, the magnitude of fertilizer overuse at farm level was empirically analyzed with Cobb-Douglas Produc- tion Function Method and profit optimization theory in the research. [Result] The resuits show that by average, 110.5 kg of chemical fertilizer were applied per mu of land, and 46.9 kg fertilizer was overused, occupying 42.5%. [Conclusion] There is large potential to reduce the overused amount and it is of great importance to re- duce fertilizer overuse effectively, which needs further intensive study.展开更多
In 2015, a previously unknown manuscript was discovered in the Nanjing Library. It contained a Chinese mining and metallurgy handbook, and was identified as a copy of the Kunyu gezhi 坤輿格致, known as the lost Chines...In 2015, a previously unknown manuscript was discovered in the Nanjing Library. It contained a Chinese mining and metallurgy handbook, and was identified as a copy of the Kunyu gezhi 坤輿格致, known as the lost Chinese translation of Georgius Agricola’s(1494–1555) De re metallica(1556) by Jesuit Adam Schall von Bell(1592–1666). A closer look at the text, however, reveals that, besides parts of Agricola’s book, content by at least four other European authors was included: Vannoccio Biringuccio(1480–1539), Modestinus Fachs(?–before 1595), Lazarus Ercker(1528/30–1594), and José de Acosta(1539/40–1599/1600). This study demonstrates how their books became available in China, why they were selected as sources for the Kunyu gezhi, and how they were eventually used and incorporated. From this, it becomes apparent that Schall and his collaborators spared no effort to conduct this ambitious knowledge transfer project, and to present European technology at its best to the emperor.展开更多
Based on inverse heat conduction theory, a theoretical model using 6-point Crank-Nicolson finite difference scheme was used to calculate the thermal conductivity from temperature distribution, which can be measured ex...Based on inverse heat conduction theory, a theoretical model using 6-point Crank-Nicolson finite difference scheme was used to calculate the thermal conductivity from temperature distribution, which can be measured experimentally. The method is a direct approach of second-order and the key advantage of the present method is that it is not required a priori knowledge of the functional form of the unknown thermal conductivity in the calculation and the thermal parameters are estimated only according to the known temperature distribution. Two cases were numerically calculated and the influence of experimental deviation on the precision of this method was discussed. The comparison of numerical and analytical results showed good agreement.展开更多
At least since Hegel identified Heraclitus as a philosopher who dealt with becoming, it has seemed obvious to perhaps most scholars that he was in some way a philosopher of process rather than a philosopher of being. ...At least since Hegel identified Heraclitus as a philosopher who dealt with becoming, it has seemed obvious to perhaps most scholars that he was in some way a philosopher of process rather than a philosopher of being. （For the views of Hegel and some early interpreters, see Graham 1997, 46-50.） Indeed, ancient sources say that for him all things are in flux, and one cannot step twice into the same stream. Yet for all that, many interpreters of Heraclitus perhaps unwittingly portray him in ways that are inconsistent with his being a process philosopher. And there are those who wish to downplay the role of flux in his system as well. In any case, to call him a process philosopher remains a vague claim until an interpreter specifies in what sense he is committed to process. Even more important, perhaps, is the question whether Heraclitus can maintain a coherent theory of process, given interpretations both ancient and modem that portray him as violating the principle of non-contradiction---often precisely because of his theory of flux. In this paper I shall attempt to argue that Heraclitus is indeed a process philosopher, and more importantly to spell out in what way he is, and to defend his theory as a consistent and indeed philosophically sound starting point for understanding the world as a process; I will end by pointing out some ways in which his theory accords with modem scientific explanations of the world.展开更多
The tradition of serving trees has a long history in the Caucasus and therefore there is quite a long tradition of interest in these problems by different authors, including foreign scientists. The tradition starts wi...The tradition of serving trees has a long history in the Caucasus and therefore there is quite a long tradition of interest in these problems by different authors, including foreign scientists. The tradition starts with Apollonius of Rhodes. Since then it has been the field of permanent interest by scientists. The material presented in the report, that brings forward the specific practical aspects of sacral functions of sacral trees and forests and mainly deals with the mountainous part of Georgia （both East and West Georgia） and represents an attempt to compare Georgian ethnographic data with the materials found in Georgia by German scientists of the same period, which allows of drawing similarities and differences between these two sources of data. C. Hahn--a public figure living on the verge of the 19th-20th century, who had original material from Khevsureti and Svaneti, was chosen from German scientists. The first and important function is the connection of sacral trees with the world of the dead, which has a practical implication rather than a religious-ritual function, which is confirmed by the use of sacral forests as a burying place and for a ritual related to the dead; The second practical aspect of the sacral trees was their healing function. The purpose of the trees is established in the ethnographic material found virtually throughout the entire Caucasus. According to ethnographic data, there appears another function of sacral trees and forests. People used to gather there in order to solve important issues and reconcile conflicting parties. Sacred forests were a nature reserve for animal habitat and a kind of a haven for the people who, for some reason, had to shelter themselves in forests.展开更多
Tongyu year painting has an important influence on national folk painting field, and the works have stronger culture and art research value, In 60s of 20th Century, Tongyu year painting has entered its prosperous peri...Tongyu year painting has an important influence on national folk painting field, and the works have stronger culture and art research value, In 60s of 20th Century, Tongyu year painting has entered its prosperous period, with many authors, lots of creation amount, large circulation and high winning level has become the major influence reason. Thus, in 1991, Tongyu County was awarded as ＂Chinese modem folk painting village＂ by the Ministry of Culture. Tongyu year painting is to reflect the meaning and connotation of year culture background, which is an important organization part of Jilin western Horqin grassland year culture, which shows the thick black soil land, Kanto feeling hot, the northeast wind rough, forming its own unique artistic style.展开更多
Sense of science and technology has become the trend of modem design, but the commonly acknowledged sense of science and technology is different from science and technology itself. Starting from machine aesthetics and...Sense of science and technology has become the trend of modem design, but the commonly acknowledged sense of science and technology is different from science and technology itself. Starting from machine aesthetics and high-tech style, combined with the changing process of the sense of science and technology, it analyzes the causes and related social factors, style characteristics and manifestations of the sense of science and technology, as well as the inherent relationship of multi-angle analysis technology and the sense of science and technology. It illustrates the social value and defects of artistic expression of the sense of science and technology and reflects on the connection and difference between science and technology on the one hand and the sense of science and technology on the other hand.展开更多
文摘[Objective] This paper aims to empirically analyze the situation of fertilizer overuse in China, considering that fertilizer, important for China＇s crop production, has brought serious environmental pollution to China due to over application. [Method] Based on field survey data in four provinces of China, the magnitude of fertilizer overuse at farm level was empirically analyzed with Cobb-Douglas Produc- tion Function Method and profit optimization theory in the research. [Result] The resuits show that by average, 110.5 kg of chemical fertilizer were applied per mu of land, and 46.9 kg fertilizer was overused, occupying 42.5%. [Conclusion] There is large potential to reduce the overused amount and it is of great importance to re- duce fertilizer overuse effectively, which needs further intensive study.
基金This research is part of“Translating Western Science,Technology and Medicine to Late Ming China:Convergences and Divergences in the Light of the Kunyu gezhi坤輿格致(Investigations of the Earth’s Interior1640)and the Taixi shuifa泰西水法(Hydromethods of the Great West1612),”a project supported by the German Research Foundation(DFG)from 2018 to 2021.
文摘In 2015, a previously unknown manuscript was discovered in the Nanjing Library. It contained a Chinese mining and metallurgy handbook, and was identified as a copy of the Kunyu gezhi 坤輿格致, known as the lost Chinese translation of Georgius Agricola’s(1494–1555) De re metallica(1556) by Jesuit Adam Schall von Bell(1592–1666). A closer look at the text, however, reveals that, besides parts of Agricola’s book, content by at least four other European authors was included: Vannoccio Biringuccio(1480–1539), Modestinus Fachs(?–before 1595), Lazarus Ercker(1528/30–1594), and José de Acosta(1539/40–1599/1600). This study demonstrates how their books became available in China, why they were selected as sources for the Kunyu gezhi, and how they were eventually used and incorporated. From this, it becomes apparent that Schall and his collaborators spared no effort to conduct this ambitious knowledge transfer project, and to present European technology at its best to the emperor.
文摘Based on inverse heat conduction theory, a theoretical model using 6-point Crank-Nicolson finite difference scheme was used to calculate the thermal conductivity from temperature distribution, which can be measured experimentally. The method is a direct approach of second-order and the key advantage of the present method is that it is not required a priori knowledge of the functional form of the unknown thermal conductivity in the calculation and the thermal parameters are estimated only according to the known temperature distribution. Two cases were numerically calculated and the influence of experimental deviation on the precision of this method was discussed. The comparison of numerical and analytical results showed good agreement.
文摘At least since Hegel identified Heraclitus as a philosopher who dealt with becoming, it has seemed obvious to perhaps most scholars that he was in some way a philosopher of process rather than a philosopher of being. （For the views of Hegel and some early interpreters, see Graham 1997, 46-50.） Indeed, ancient sources say that for him all things are in flux, and one cannot step twice into the same stream. Yet for all that, many interpreters of Heraclitus perhaps unwittingly portray him in ways that are inconsistent with his being a process philosopher. And there are those who wish to downplay the role of flux in his system as well. In any case, to call him a process philosopher remains a vague claim until an interpreter specifies in what sense he is committed to process. Even more important, perhaps, is the question whether Heraclitus can maintain a coherent theory of process, given interpretations both ancient and modem that portray him as violating the principle of non-contradiction---often precisely because of his theory of flux. In this paper I shall attempt to argue that Heraclitus is indeed a process philosopher, and more importantly to spell out in what way he is, and to defend his theory as a consistent and indeed philosophically sound starting point for understanding the world as a process; I will end by pointing out some ways in which his theory accords with modem scientific explanations of the world.
文摘The tradition of serving trees has a long history in the Caucasus and therefore there is quite a long tradition of interest in these problems by different authors, including foreign scientists. The tradition starts with Apollonius of Rhodes. Since then it has been the field of permanent interest by scientists. The material presented in the report, that brings forward the specific practical aspects of sacral functions of sacral trees and forests and mainly deals with the mountainous part of Georgia （both East and West Georgia） and represents an attempt to compare Georgian ethnographic data with the materials found in Georgia by German scientists of the same period, which allows of drawing similarities and differences between these two sources of data. C. Hahn--a public figure living on the verge of the 19th-20th century, who had original material from Khevsureti and Svaneti, was chosen from German scientists. The first and important function is the connection of sacral trees with the world of the dead, which has a practical implication rather than a religious-ritual function, which is confirmed by the use of sacral forests as a burying place and for a ritual related to the dead; The second practical aspect of the sacral trees was their healing function. The purpose of the trees is established in the ethnographic material found virtually throughout the entire Caucasus. According to ethnographic data, there appears another function of sacral trees and forests. People used to gather there in order to solve important issues and reconcile conflicting parties. Sacred forests were a nature reserve for animal habitat and a kind of a haven for the people who, for some reason, had to shelter themselves in forests.
文摘Tongyu year painting has an important influence on national folk painting field, and the works have stronger culture and art research value, In 60s of 20th Century, Tongyu year painting has entered its prosperous period, with many authors, lots of creation amount, large circulation and high winning level has become the major influence reason. Thus, in 1991, Tongyu County was awarded as ＂Chinese modem folk painting village＂ by the Ministry of Culture. Tongyu year painting is to reflect the meaning and connotation of year culture background, which is an important organization part of Jilin western Horqin grassland year culture, which shows the thick black soil land, Kanto feeling hot, the northeast wind rough, forming its own unique artistic style.
文摘Sense of science and technology has become the trend of modem design, but the commonly acknowledged sense of science and technology is different from science and technology itself. Starting from machine aesthetics and high-tech style, combined with the changing process of the sense of science and technology, it analyzes the causes and related social factors, style characteristics and manifestations of the sense of science and technology, as well as the inherent relationship of multi-angle analysis technology and the sense of science and technology. It illustrates the social value and defects of artistic expression of the sense of science and technology and reflects on the connection and difference between science and technology on the one hand and the sense of science and technology on the other hand.
