Rehabilitation(amendment and vegetation establishment)on bauxite residue is viewed as a promising strategy to stabilize the surface and initiate soil development.However,such approaches are inhibited by high pH,high e...Rehabilitation(amendment and vegetation establishment)on bauxite residue is viewed as a promising strategy to stabilize the surface and initiate soil development.However,such approaches are inhibited by high pH,high exchangeable sodium(ESP)and poor nutrient status.Amendment with gypsum is effective in improving residue physical and chemical properties and promoting seed establishment and growth.Application of organics(e.g.compost)can address nutrient deficiencies but supplemental fertilizer additions may be required.A series of germination bioassays were performed on residue to determine candidate species and optimum rehabilitation application rates.Subsequent field trials assessed establishment of grassland species Holcus lanatus and Trifolium pratense as well as physical and chemical properties of amended residue.Follow up monitoring over five years assessed elemental content in grassland and species dynamics.With co-application of the amendments several grassland species can grow on the residue.Over time other plant species can invade the restored area and fast growing nutrient demanding grasses are replaced.Scrub species can establish within a 5 Yr period and there is evidence of nutrient cycling.High pH,sodicity and nutrient deficiencies are the major limiting factors to establishing grassland on residue.Following restoration several plant species can grow on amended residue.展开更多
According to the principle of belt seeding establishment of adhesive bonded fabric,applied indexes of belt seeding establishment effect were studied using carrier combination of several kinds of waste meterials under...According to the principle of belt seeding establishment of adhesive bonded fabric,applied indexes of belt seeding establishment effect were studied using carrier combination of several kinds of waste meterials under soil cover.The results showed that the effect depended on the coordinated characteristics of carrier combination from turfgrass and waste materials.It was testified that production of belt seeding was feasible using a certain kind of waste material carrier under given conditions.The study provided a scientific basis for applying evvironmental engineering to belt seeding establishment of waste materials and developing nwe industry of environmental protection.展开更多
Frost heaving processes have been a focus of study since the late 19th century.Factors controlling frost heave development were investigated over several decades.The mechanisms involved were identified based on numero...Frost heaving processes have been a focus of study since the late 19th century.Factors controlling frost heave development were investigated over several decades.The mechanisms involved were identified based on numerous field and experimental evidences. However,despite this long history of frost展开更多
since the establishment of the People’s Republic of China,the central leader-groups from generation to generation have been continuously exploring and innovating Marxist political party theory in terms of its value t...since the establishment of the People’s Republic of China,the central leader-groups from generation to generation have been continuously exploring and innovating Marxist political party theory in terms of its value target,ideological construction,working style,and organization developments.This process can be categorized into five stages:the founding stage in Mao Zedong’s era,the development stage in Deng Xiaoping’s ear,the promotion stage in Jiang Zemin’s times,the deepening stage under Hu Jintao’s leadership,and the stage of further innovation by Xi Jinping in the new era,with the characteristics of inheritance,development as well as scientificity and valuation.展开更多
The development of the socialist market economy demands the furtherintensification of the reform of the management operating system (MOS)of the state-owned assets, the strengthening of the efficiency in the man-agemen...The development of the socialist market economy demands the furtherintensification of the reform of the management operating system (MOS)of the state-owned assets, the strengthening of the efficiency in the man-agement of state-owned assets,and the improvement of the operating bene-展开更多
Establishing Consensus with Users of Research Irradiator Devices to Facilitate Source Type Replacement Danette R.Fennesy1,Janet M.Gutiérrez1,2,Scott J.Patlovich1,Robert J.Emery1(1.The University of Texas Health S...Establishing Consensus with Users of Research Irradiator Devices to Facilitate Source Type Replacement Danette R.Fennesy1,Janet M.Gutiérrez1,2,Scott J.Patlovich1,Robert J.Emery1(1.The University of Texas Health Science Center at Houston,Environmental Health&Safety,6431 Fannin St,CYF G.102,Houston,TX,77030;2.Corresponding author)Abstract:The ability to irradiate cells,tissues,and other biological materials with high-energy photons has been an essential tool in the discovery of numerous biomedical research advancements.展开更多
Marx’s spirit of pursuing truth,his hatred of exploitation system and sympathy for laborers prompted him to move from the young Hegelian school to fehbaism and eventually to communism,and completed the transformation...Marx’s spirit of pursuing truth,his hatred of exploitation system and sympathy for laborers prompted him to move from the young Hegelian school to fehbaism and eventually to communism,and completed the transformation from idealism to thorough dialectical materialism in the world view.To do so,he constructed his own theoretical system based on criticism and targeted the social practice,providing ideological weapon for the transformation of unreasonable social forms.Thereby,the unit of"critical weapon"and"weapon of criticism"was accomplished historically and logically,fulfilling the construction of his critical view.展开更多
10001 A Precise Coulometric Titration Method forthe Determination of Purity of Sodium Carbonate.Tang Gaohua,Lin Dawei: 1(2). 1980. pp.142--146.This paper describes the method artd device of precisecoulometric titratio...10001 A Precise Coulometric Titration Method forthe Determination of Purity of Sodium Carbonate.Tang Gaohua,Lin Dawei: 1(2). 1980. pp.142--146.This paper describes the method artd device of precisecoulometric titration at constant current for thedetermination of purity of sodium carbonate. The con-ditions of measurement are stated in detail. By thismethod. the attainable precision is 0.004%. and thetotal uncertainty is 0.005%.展开更多
In this article, a new model of establishing flexible and utility bi-bliographic systems dependent on microcomputer or minicomputer is di-scussed and compared with the models of large systems and PC-basedsystems. A pr...In this article, a new model of establishing flexible and utility bi-bliographic systems dependent on microcomputer or minicomputer is di-scussed and compared with the models of large systems and PC-basedsystems. A practical example based on this model, Union Catalog Systemof Serials in Western Languages, is used to show our solution for thedevelopment and utilization of the systems of this kind.展开更多
基金Projects(41877551,41842020)supported by the National Natural Science Foundation of ChinaProject supported by the Science Foundation Ireland 17/CDA/4778
文摘Rehabilitation(amendment and vegetation establishment)on bauxite residue is viewed as a promising strategy to stabilize the surface and initiate soil development.However,such approaches are inhibited by high pH,high exchangeable sodium(ESP)and poor nutrient status.Amendment with gypsum is effective in improving residue physical and chemical properties and promoting seed establishment and growth.Application of organics(e.g.compost)can address nutrient deficiencies but supplemental fertilizer additions may be required.A series of germination bioassays were performed on residue to determine candidate species and optimum rehabilitation application rates.Subsequent field trials assessed establishment of grassland species Holcus lanatus and Trifolium pratense as well as physical and chemical properties of amended residue.Follow up monitoring over five years assessed elemental content in grassland and species dynamics.With co-application of the amendments several grassland species can grow on the residue.Over time other plant species can invade the restored area and fast growing nutrient demanding grasses are replaced.Scrub species can establish within a 5 Yr period and there is evidence of nutrient cycling.High pH,sodicity and nutrient deficiencies are the major limiting factors to establishing grassland on residue.Following restoration several plant species can grow on amended residue.
基金supported by National Science Foundation of China (5 98780 33) Young Science Foundation of Tianjin- 2 1Centuries(97370 5 111)
文摘According to the principle of belt seeding establishment of adhesive bonded fabric,applied indexes of belt seeding establishment effect were studied using carrier combination of several kinds of waste meterials under soil cover.The results showed that the effect depended on the coordinated characteristics of carrier combination from turfgrass and waste materials.It was testified that production of belt seeding was feasible using a certain kind of waste material carrier under given conditions.The study provided a scientific basis for applying evvironmental engineering to belt seeding establishment of waste materials and developing nwe industry of environmental protection.
文摘Frost heaving processes have been a focus of study since the late 19th century.Factors controlling frost heave development were investigated over several decades.The mechanisms involved were identified based on numerous field and experimental evidences. However,despite this long history of frost
文摘since the establishment of the People’s Republic of China,the central leader-groups from generation to generation have been continuously exploring and innovating Marxist political party theory in terms of its value target,ideological construction,working style,and organization developments.This process can be categorized into five stages:the founding stage in Mao Zedong’s era,the development stage in Deng Xiaoping’s ear,the promotion stage in Jiang Zemin’s times,the deepening stage under Hu Jintao’s leadership,and the stage of further innovation by Xi Jinping in the new era,with the characteristics of inheritance,development as well as scientificity and valuation.
文摘The development of the socialist market economy demands the furtherintensification of the reform of the management operating system (MOS)of the state-owned assets, the strengthening of the efficiency in the man-agement of state-owned assets,and the improvement of the operating bene-
文摘Establishing Consensus with Users of Research Irradiator Devices to Facilitate Source Type Replacement Danette R.Fennesy1,Janet M.Gutiérrez1,2,Scott J.Patlovich1,Robert J.Emery1(1.The University of Texas Health Science Center at Houston,Environmental Health&Safety,6431 Fannin St,CYF G.102,Houston,TX,77030;2.Corresponding author)Abstract:The ability to irradiate cells,tissues,and other biological materials with high-energy photons has been an essential tool in the discovery of numerous biomedical research advancements.
基金a stage achievement of the project of philosophy and social science research foundation of Jiangsu province——“Research on Innovation of Ideological and Political Work in Colleges and Universities from the Perspective of Cultural Self-confidence”(No.2017SJBFDY115)。
文摘Marx’s spirit of pursuing truth,his hatred of exploitation system and sympathy for laborers prompted him to move from the young Hegelian school to fehbaism and eventually to communism,and completed the transformation from idealism to thorough dialectical materialism in the world view.To do so,he constructed his own theoretical system based on criticism and targeted the social practice,providing ideological weapon for the transformation of unreasonable social forms.Thereby,the unit of"critical weapon"and"weapon of criticism"was accomplished historically and logically,fulfilling the construction of his critical view.
文摘10001 A Precise Coulometric Titration Method forthe Determination of Purity of Sodium Carbonate.Tang Gaohua,Lin Dawei: 1(2). 1980. pp.142--146.This paper describes the method artd device of precisecoulometric titration at constant current for thedetermination of purity of sodium carbonate. The con-ditions of measurement are stated in detail. By thismethod. the attainable precision is 0.004%. and thetotal uncertainty is 0.005%.
文摘In this article, a new model of establishing flexible and utility bi-bliographic systems dependent on microcomputer or minicomputer is di-scussed and compared with the models of large systems and PC-basedsystems. A practical example based on this model, Union Catalog Systemof Serials in Western Languages, is used to show our solution for thedevelopment and utilization of the systems of this kind.
