In this paper, we identify the geographic information systems (GIS), discuss the components of GIS, which integrates five essential components: hardware, software, data, people, and methods. Present the relations betw...In this paper, we identify the geographic information systems (GIS), discuss the components of GIS, which integrates five essential components: hardware, software, data, people, and methods. Present the relations between computer and urban planning, urban planning and GIS. Moreover, the main discussion on a case study that explores the possibility of using ArcView GIS software to assemble, store, manipulate, and analyze historic site- Xinjin ferry district in Zhenjiang.展开更多
In order to solve the decoupling control problem of multivariable system with time delays,a new decoupling Smith control method for multivariable system with time delays was proposed. Firstly,the decoupler based on th...In order to solve the decoupling control problem of multivariable system with time delays,a new decoupling Smith control method for multivariable system with time delays was proposed. Firstly,the decoupler based on the adjoint matrix of the multivariable system model with time delays was introduced,and the decoupled models were reduced to first-order plus time delay models by analyzing the amplitude-frequency and phase-frequency characteristics. Secondly,according to the closed-loop characteristic equation of Smith predictor structure,proportion integration (PI) controllers were designed following the principle of pole assignment for Butterworth filter. Finally,using small-gain theorem and Nyquist stability criterion,sufficient and necessary conditions for robust stability were analyzed with multiplicative uncertainties,which could be encountered frequently in practice. The result shows that the method proposed has superiority for response speed and load disturbance rejection performance.展开更多
Land use and land cover(LULC) in Nepal has undergone constant change over the past few decades due to major changes caused by anthropogenic and natural factors and their impacts on the national and regional environmen...Land use and land cover(LULC) in Nepal has undergone constant change over the past few decades due to major changes caused by anthropogenic and natural factors and their impacts on the national and regional environment and climate.This comprehensive review of past and present studies of land use and land cover change(LUCC) in Nepal concentrates on cropland, grassland, forest, snow/glacier cover and urban areas. While most small area studies have gathered data from different sources and research over a short period, across large areas most historical studies have been based on aerial photographs such as the Land Resource Mapping Project in 1986. The recent trend in studies in Nepal is to focus on new concepts and techniques to analyze LULC status on the basis of satellite imagery, with the help of geographic information system and remote sensing tools. Studies based on historical documents, and historical and recent spatial data on LULC, have clearly shown an increase in cropland areas in Nepal,and present results indicating different rates and magnitudes. A decrease in forest and snow/glacier coverage is reported in most studies. Little information is available on grassland and urban areas from past research. The unprecedented rate of urbanization in Nepal has led to significant urban land changes over the past 30 years. Meanwhile, long term historical LUCC research in Nepal is required for extensive work on spatially explicit reconstructions on the basis of historical and primary data collection, including LULC archives and drivers for future change.展开更多
This paper examines the food references in David Hume＇s writings--most notably the correspondence, the essays, and his historical narrative. It is in the latter that we find his culinary interests exhibited in a fair...This paper examines the food references in David Hume＇s writings--most notably the correspondence, the essays, and his historical narrative. It is in the latter that we find his culinary interests exhibited in a fair amount of detail----outlining a historiography of food. In fact, people discover a ＂subtext＂ of the history of food in Hume＇s general history of England. Discussed foodstuffs as raw （economic） commodities, food as it is prepared and brought to the table, and as part of a social ritual of manners. All these facets of food practices interested Hume throughout his life （1711-1776） and in his history of the British Isles （ca. 55 BCE to 1688）.展开更多
Mangroves accumulate sedimentary sequences, where cores can provide historical records of mangrove evolution with past climate change and human activity. The study traced the history of mangrove evolution during the p...Mangroves accumulate sedimentary sequences, where cores can provide historical records of mangrove evolution with past climate change and human activity. The study traced the history of mangrove evolution during the past one hundred years in a mangrove swamp of Maowei Sea, SW China. The sedimentation rates(0.38-0.95 cm yr^(-1)) were calculated on the basis of ln(^(210)Pb_(xs)/Al) and mass depth in the core sediments. Chemical tracers, such as δ^(13)C_(org) and C:N values, were utilized to trace the contribution of mangrove-derived organic matter using a ternary mixing model. Because of potential diagenetic alteration and / or overlap in the isotopic signatures of different components, simultaneous use of mangrove pollen diagrams can help to supplement some of these limitations. Combined with mangrove pollen, mangrove evolution was reconstructed and could be divided into three stages: flourishment(1886-1905 AD), slight degradation(1905-1949 AD) and rapid degradation period(1949-2007 AD), which was consistent with previous reports. The reclamation of mangrove swamps to shrimp ponds was the major reason for rapid degradation of mangrove ecosystems in recent years, rather than climate change in the region.展开更多
Human experience can best be understood in the framework of collective social relations. Like any other tie, the mother-daughter relationship is forged not in isolation but informed by cultural, historical, and social...Human experience can best be understood in the framework of collective social relations. Like any other tie, the mother-daughter relationship is forged not in isolation but informed by cultural, historical, and social values, circumstances, and practices. The twentieth century has witnessed the greatest changes in world history. As an outcome of the noticeable shift in gender ideologies in the last half of that century, modern mothers and daughters struggled to experience a union, a bond, an understanding of themselves and the world around them. Clash of tradition and modernity in ideals and mores can be held accountable for the consequential neurotic development of the psyche in twentieth century mothers and daughters. Doris Lessing＇s writings reflect the way in which these complex changes in society affect family relationships. Her first novel of the Children of Violence series, Martha Quest, is an apt study of a mother and her daughter＇s struggle with their newly defined roles in society. This paper will seek to examine the conflicts that are encountered in the wake of such adjustments by contemporary mothers and daughters. In order to do so, the study will focus on an exploration of the kind of issues that Martha Quest and May Quest experience in Lessing＇s Martha Quest through approaches available in works by Carl Jung on his theory of the ＂mother complex＂.展开更多
AFuller makes the morality be divided into two groups of morality in the book ＂The Morality of Law＂ . One group is the desiderative morality and compulsory morality, and other group is innernal and external morality...AFuller makes the morality be divided into two groups of morality in the book ＂The Morality of Law＂ . One group is the desiderative morality and compulsory morality, and other group is innernal and external morality of law. The desiderative morality is the good morality with life, excellent morality and the morality which can make human＇ s power be fully realized. The author makes the interactive relationship between innernal morality and external morality be explained that there is experience contact about innernal and external morality of law. The explanation about this kind of experience relationship conforms with the position of the sociology of law which is definited by Fuller in law. In addition, seen from the practical experience and historical experience of human, this kind of explanation not only conforms with the demand of human practice but also conforms with the reality at the same time. There is also some significance which can be reference for us to discuss how to conduct the law practice.展开更多
文摘In this paper, we identify the geographic information systems (GIS), discuss the components of GIS, which integrates five essential components: hardware, software, data, people, and methods. Present the relations between computer and urban planning, urban planning and GIS. Moreover, the main discussion on a case study that explores the possibility of using ArcView GIS software to assemble, store, manipulate, and analyze historic site- Xinjin ferry district in Zhenjiang.
基金Projects(60634020, 61074117) supported by the National Natural Science Foundation of China
文摘In order to solve the decoupling control problem of multivariable system with time delays,a new decoupling Smith control method for multivariable system with time delays was proposed. Firstly,the decoupler based on the adjoint matrix of the multivariable system model with time delays was introduced,and the decoupled models were reduced to first-order plus time delay models by analyzing the amplitude-frequency and phase-frequency characteristics. Secondly,according to the closed-loop characteristic equation of Smith predictor structure,proportion integration (PI) controllers were designed following the principle of pole assignment for Butterworth filter. Finally,using small-gain theorem and Nyquist stability criterion,sufficient and necessary conditions for robust stability were analyzed with multiplicative uncertainties,which could be encountered frequently in practice. The result shows that the method proposed has superiority for response speed and load disturbance rejection performance.
基金supported by the Natural Science Foundation of China(Grant No.41371120)the Koshi Basin Programme(Support from the Australian Government through the Department of Foreign Affairs and Trade(DFAT))the Chinese Academy of Sciences-The World Academy of Sciences(CAS-TWAS)President’s Fellowship Programme for international PhD students
文摘Land use and land cover(LULC) in Nepal has undergone constant change over the past few decades due to major changes caused by anthropogenic and natural factors and their impacts on the national and regional environment and climate.This comprehensive review of past and present studies of land use and land cover change(LUCC) in Nepal concentrates on cropland, grassland, forest, snow/glacier cover and urban areas. While most small area studies have gathered data from different sources and research over a short period, across large areas most historical studies have been based on aerial photographs such as the Land Resource Mapping Project in 1986. The recent trend in studies in Nepal is to focus on new concepts and techniques to analyze LULC status on the basis of satellite imagery, with the help of geographic information system and remote sensing tools. Studies based on historical documents, and historical and recent spatial data on LULC, have clearly shown an increase in cropland areas in Nepal,and present results indicating different rates and magnitudes. A decrease in forest and snow/glacier coverage is reported in most studies. Little information is available on grassland and urban areas from past research. The unprecedented rate of urbanization in Nepal has led to significant urban land changes over the past 30 years. Meanwhile, long term historical LUCC research in Nepal is required for extensive work on spatially explicit reconstructions on the basis of historical and primary data collection, including LULC archives and drivers for future change.
文摘This paper examines the food references in David Hume＇s writings--most notably the correspondence, the essays, and his historical narrative. It is in the latter that we find his culinary interests exhibited in a fair amount of detail----outlining a historiography of food. In fact, people discover a ＂subtext＂ of the history of food in Hume＇s general history of England. Discussed foodstuffs as raw （economic） commodities, food as it is prepared and brought to the table, and as part of a social ritual of manners. All these facets of food practices interested Hume throughout his life （1711-1776） and in his history of the British Isles （ca. 55 BCE to 1688）.
基金supported by the National Key Scientific Research Project on Global Climate Change (Grant No. 2010CB 951203)the National Natural Science Foundation of China (Grant Nos. 41206057, 41576067, 41376075 and 41576061)
文摘Mangroves accumulate sedimentary sequences, where cores can provide historical records of mangrove evolution with past climate change and human activity. The study traced the history of mangrove evolution during the past one hundred years in a mangrove swamp of Maowei Sea, SW China. The sedimentation rates(0.38-0.95 cm yr^(-1)) were calculated on the basis of ln(^(210)Pb_(xs)/Al) and mass depth in the core sediments. Chemical tracers, such as δ^(13)C_(org) and C:N values, were utilized to trace the contribution of mangrove-derived organic matter using a ternary mixing model. Because of potential diagenetic alteration and / or overlap in the isotopic signatures of different components, simultaneous use of mangrove pollen diagrams can help to supplement some of these limitations. Combined with mangrove pollen, mangrove evolution was reconstructed and could be divided into three stages: flourishment(1886-1905 AD), slight degradation(1905-1949 AD) and rapid degradation period(1949-2007 AD), which was consistent with previous reports. The reclamation of mangrove swamps to shrimp ponds was the major reason for rapid degradation of mangrove ecosystems in recent years, rather than climate change in the region.
文摘Human experience can best be understood in the framework of collective social relations. Like any other tie, the mother-daughter relationship is forged not in isolation but informed by cultural, historical, and social values, circumstances, and practices. The twentieth century has witnessed the greatest changes in world history. As an outcome of the noticeable shift in gender ideologies in the last half of that century, modern mothers and daughters struggled to experience a union, a bond, an understanding of themselves and the world around them. Clash of tradition and modernity in ideals and mores can be held accountable for the consequential neurotic development of the psyche in twentieth century mothers and daughters. Doris Lessing＇s writings reflect the way in which these complex changes in society affect family relationships. Her first novel of the Children of Violence series, Martha Quest, is an apt study of a mother and her daughter＇s struggle with their newly defined roles in society. This paper will seek to examine the conflicts that are encountered in the wake of such adjustments by contemporary mothers and daughters. In order to do so, the study will focus on an exploration of the kind of issues that Martha Quest and May Quest experience in Lessing＇s Martha Quest through approaches available in works by Carl Jung on his theory of the ＂mother complex＂.
文摘AFuller makes the morality be divided into two groups of morality in the book ＂The Morality of Law＂ . One group is the desiderative morality and compulsory morality, and other group is innernal and external morality of law. The desiderative morality is the good morality with life, excellent morality and the morality which can make human＇ s power be fully realized. The author makes the interactive relationship between innernal morality and external morality be explained that there is experience contact about innernal and external morality of law. The explanation about this kind of experience relationship conforms with the position of the sociology of law which is definited by Fuller in law. In addition, seen from the practical experience and historical experience of human, this kind of explanation not only conforms with the demand of human practice but also conforms with the reality at the same time. There is also some significance which can be reference for us to discuss how to conduct the law practice.
