Crustal deformation can provide constraints for studying earthquake rupture and shock wave transmission for the Mw9.0 eastern Japan great earthquake. Using the single- epoch precise point positioning (PPP) method an...Crustal deformation can provide constraints for studying earthquake rupture and shock wave transmission for the Mw9.0 eastern Japan great earthquake. Using the single- epoch precise point positioning (PPP) method and the appropriate positioning flow, we process GPS data from six IGS (International GNSS Service) sites (e.g., MIZU, TSK2, USUD, MTKA, AIRA and KSMV) located in Japan and obtain the positioning results with centimeter scale precision. The displacement time series of the six sites are analyzed using the least squares spectral analysis method to estimate deformations caused by the Mw9.0 mainshock and the Mw7.9 aftershock, and the cumulative displacements after 1 day. Mainshock displacements at station MIZU, the nearest site to the mainshock in the North (N), East (E), and Up (U) directions, are -1.202 m, 2.180 m and -0.104 m, respectively, and the cumulative deformations after 1 day are -1.117 m, 2.071 m and -0.072 m, respectively. The displacements at station KSMV, the nearest site to the Mw7.9 aftershock in the N, E and U directions, are -0.032 m, 0.742 m and -0.345 m, respectively. The other sites obviously experienced eastern movements and subsidence. The deformation vectors indicate that the horizontal displacements caused by the earthquake point to the epicenter and rupture. Elastic bounds evidently took place at all sites. The results indicate that the crustal movements and earthquake were part of a megathrust caused by the Pacific Plate sinking under the North American Plate to the northeast of Japan island arc.展开更多
A defining characteristic of continuous queries over on-line data streams,possibly bounded by sliding windows,is the potentially infinite and time-evolving nature of their inputs and outputs.For different update patte...A defining characteristic of continuous queries over on-line data streams,possibly bounded by sliding windows,is the potentially infinite and time-evolving nature of their inputs and outputs.For different update patterns of continuous queries,suitable data structures bring great query processing efficiency.In this paper,we proposed a data structure suitable for weak nonmonotonic update pattern in which the lifetime of each tuple is known at generation time,but the length of lifetime is not necessarily the same.The new data structure combined the ladder queue with the feature of weak non-monotonic update pattern.The experiment results show that the new data structure performs much better than the traditional calendar queue in many cases.展开更多
This paper aims to examine the existence of calendar anomalies including month-of-year effect, turn-of-month effect, and weekend effect in Thai stock market. The stock return is computed from SET index during 1988 to ...This paper aims to examine the existence of calendar anomalies including month-of-year effect, turn-of-month effect, and weekend effect in Thai stock market. The stock return is computed from SET index during 1988 to 2009 and the SET50 index gathered since it was created in 1995. The unit root test is performed to ensure that the stock return series have no unit root. The multiple regression techniques using dummy variables are employed to test the difference of the return during each calendar anomalies period. If the regression model suffers from conditional heteroskedasticity, the GARCH (1, 1) model will be used instead of normal ordinary least square regression. It was found that the calendar anomalies exist in Thai stock market. The return is abnormally high during December and January, which can be addressed to be the turn-of-year effect. The return during the turn-of-month period, which can be defined as the last trading day and the first four trading days of the following months, is also abnormally high. Finally, the return is also abnormally high on Fridays but abnormally low on Mondays, which is addressed as weekend effect. This may create the opportunity to make above-average profit to investors exploiting these calendar anomalies. Although these calendar anomalies may be difficult to be exploited in practice because of transaction costs and ability to replicate the stock index, the existing evidence of calendar anomalies can help investors as the clue for the timing of investment.展开更多
This study investigates calendar anomalies: day-of-the-week effect and seasonal effect in the Value-at-Risk (VaR) analysis of stock returns for AAPL during the period of 1995 through 2015. The statistical propertie...This study investigates calendar anomalies: day-of-the-week effect and seasonal effect in the Value-at-Risk (VaR) analysis of stock returns for AAPL during the period of 1995 through 2015. The statistical properties are examined and a comprehensive set of diagnostic checks are made on the two decades of AAPL daily stock returns. Combing the Extreme Value Approach together with a statistical analysis, it is learnt that the lowest VaR occurs on Fridays and Mondays typically. Moreover, high Q4 and Q3 VaR are observed during the test period. These results are valuable for anyone who needs evaluation and forecasts of the risk situation in AAPL. Moreover, this methodology, which is applicable to any other stocks or portfolios, is more realistic and comprehensive than the standard normal distribution based VaR model that is commonly used.展开更多
The purpose of this paper is to clarify how the Kabu-ido system can be employed to successfully regulate groundwater pumping. This was accomplished by analyzing surviving historical documents, including budgetary note...The purpose of this paper is to clarify how the Kabu-ido system can be employed to successfully regulate groundwater pumping. This was accomplished by analyzing surviving historical documents, including budgetary notes and a diary. The Kabu-ido system was a customary institution for groundwater management in a ring levee area of the Noubi Plain in Japan that consisted of three programs: restriction of groundwater pumping through a permit system, groundwater pricing and economic compensation. The system was created in the 1810s and survived for 100 years. This paper covers the Kabu-ido system from the 1810s to the 1860s, the first half of the 100-year history. Excessive groundwater pumping is not a new environmental problem. Although many case studies have investigated remedial actions, few have investigated how local residents addressed the problem before the 20th century because of a lack of documents. The Kabu-ido system is an exception in which of the procedure was documented in writing. The historical data indicate that it was a pioneering institution for groundwater management.展开更多
This study examines local people's perception of forest resources (FR) conservation around two plantation forest reserves (PFR) and two natural forest reserves (NFR) in Ekiti State in order to determine the fac...This study examines local people's perception of forest resources (FR) conservation around two plantation forest reserves (PFR) and two natural forest reserves (NFR) in Ekiti State in order to determine the factors that can contribute to sustainable FR conservation. Questionnaire and interview were used to collect data from 240 respondents. Data were analyzed using descriptive and inferential statistics. 75.0% and 86.1% of respondents around PFR recognized the importance of conserving the FR for economic benefits and biodiversity respectively, while 66.7% would not want the FR conserved for cultural values. 82.9% of respondents around NFR would want the FR conserved for economic benefits, while 74.3% and 66.7% would not want the forest conserved for cultural values and biodiversity respectively. For efficient conservation, participation in forest management and involvement in decision making with means of 3.45 and 3.52 ranked highest in PFR and NFR respectively. Probit regression analysis showed that in PFR and NFR, age, education and income were positively significant to FR conservation (p 〈 0.05). Creating an enabling environment that will make local people appreciate historical cultural values of the forest for tourism is essential for efficient FR conservation in the study area.展开更多
The three-day event 2016 China·Anyang Textile&Clothing Fair made its debut today in Anyang Internationa Convention and Exhibition Center,covering an area of 5,000 square meters and attracting more than 220 exhib...The three-day event 2016 China·Anyang Textile&Clothing Fair made its debut today in Anyang Internationa Convention and Exhibition Center,covering an area of 5,000 square meters and attracting more than 220 exhibitors.Themed on"cross-border cooperation&win-win development",the fair aimed to expand the market,increase effectiveness,and seek for cooperation展开更多
Historic cities are cultural achievements that are gradually created by inhabitants over the centuries. In developed countries, the conservation of historic cities seems to be generally acknowledged as a method of com...Historic cities are cultural achievements that are gradually created by inhabitants over the centuries. In developed countries, the conservation of historic cities seems to be generally acknowledged as a method of community development that does not depend on huge exploitation. On the other hand, no sufficient countermeasures have been taken in developing countries because most native stakeholders are still interested in development. Here the author could focus on so-called "international cooperation", but urban conservation for historic cities where inhabitants actually live is still a minor consideration except for some government-based conservation projects for monuments and isolated examples of cultural heritage. In this paper, the example was taken of a conservation project which has been carried out by JICA (Japanese International Cooperation Agency) in Damascus, the old capital of Syria. The target area for the project is "Qanawat South". Although the origin of"Qanawat South" dates back to the Roman age, efforts for urban conservation have not been well organized, partly because the area is located outside of the so-called old city registered as a world heritage site. For example, the master plan of 1968 indicated the redistribution of the traditional quarters, while some conservation laws have been restricting the regeneration of the area. Moreover, there is not yet any consensus among the stakeholders concerning the historical value of the quarter, they are still questioning why the area should be conserved rather than being freely sold or developed and what and how they should contribute to conservation. Based on analysis of the actual situation of Qasr al-Hajjaj Street, this paper examines a method called "restoration-type" facade improvement adopted by JICA, for which the final goal is not only to maintain the appearance of the street but also to activate the life of the habitants of the street.展开更多
Nigerian literatures contain history in the oral tradition and folklore like satire, proverbs, chants, symbolism etc. in the pre-literate period, Nigeria enjoyed high level of verbal art civilization which traditional...Nigerian literatures contain history in the oral tradition and folklore like satire, proverbs, chants, symbolism etc. in the pre-literate period, Nigeria enjoyed high level of verbal art civilization which traditional rulers and the generality of the populace patronized. The oral tradition served as medium of preservation of culture and history of the ancient past and experiences. Though, most Nigerians can still remember their family history, folklore, tradition and genealogy, only few oral artists and youths of nowadays possess the skill and ability needed to chant the lengthy oral literature. It is in the light of the above that this study examined the effect of oral tradition, folklore, and history on the development of education in Nigeria, 1977 till date. The study adopted historical research method using primary and secondary sources of information to analyze data. Primary sources include, like archive materials, oral interviews and secondary sources include, like textbooks, speeches, journals, and internet materials and images. The outlines of the paper are: the definition of concepts, historical background of Nigerian oral tradition, and folklore in the educational system, the place of oral tradition, folklore and history in the education policy in Nigeria since 1977, the effect of oral tradition, folklore and history on the development of education in Nigeria since 1977, the prospects of oral traditions, folklore and history on the development of education in Nigeria, conclusion and a few recommendations for future improvement. The findings of the study revealed that oral traditions, folklore and history were the bed-rock for the development of education and society in the pre-colonial period, but these were dropped gradually with the advent of the colonial masters and gradually deteriorate both in the educational curriculum and general conduct of the society and these have adverse effect on the nation's economy. It is recommended that the beauty of Nigerian history, oral and written traditions, culture, folklore like proverbs, chants, satire and symbolism, be brought back into the school system, politics and every sector of the Nigerian economy for proper advancement to take place in the education sector and for overall national development.展开更多
This paper is divided into three subjects: Japanese Genghis Khan, Chinese tofu and Korean bibimbap (mixed rice with vegetables). It will be a cross-cultural and comparative research on historic foods among three co...This paper is divided into three subjects: Japanese Genghis Khan, Chinese tofu and Korean bibimbap (mixed rice with vegetables). It will be a cross-cultural and comparative research on historic foods among three countries (Japan, China, and Korea), in relation to national culinary identity.展开更多
In 1931, Japan launched the Sept. 18th attack against China. Ever since, there have been many different views over the origin of Japan's road toward war, which mostly concern with Japan's land policy. This paper hol...In 1931, Japan launched the Sept. 18th attack against China. Ever since, there have been many different views over the origin of Japan's road toward war, which mostly concern with Japan's land policy. This paper holds that Japan's land policy was an evolving one and it transformed along the change of its supporters and implementers during different stages. It is mostly a contention about the different strategies on Manchuria and Mongol; the northward or the southward advance faction; the orientations of the radical military occupation or the moderate economic occupation. Interestingly, the development of Japan's postwar policy toward China, especially in the recent years, resembles the evolvement of Japan's land policy in the 19th century. They both show tendency from the economic effort to the military activity.展开更多
Objectives: To review the calendar, mortality and morbidity of Iraq-Iran chemical war among Iranians based on researchers' reports. Methods: We used national and international databanks such as PubMed, ISI, Scopus...Objectives: To review the calendar, mortality and morbidity of Iraq-Iran chemical war among Iranians based on researchers' reports. Methods: We used national and international databanks such as PubMed, ISI, Scopus, Irandoc and Iranmedex and studied 350 articles related to chemical agents and their effects on different organs. The main criteria for qualification of articles were relevancy orientation and being published in approved medical journals. Results: The Iraqi army invaded to west and southwest Iran using chemical weapons such as nerve agents (NAs) and sulfur mustard (SM). Most victims were civilians including women and children. These attacks had imposed more than 150 types of diseases and complications on Iranians and the frequency of death was 2%-3%. Most reports were about respiratory problems and a few were in the domain of socio-economic damages Conclusion: At present, 25 years after me end of war, the victims are faced with different complications induced by chemical agents and it is estimated that they will be continuously troubled by these problems in future.展开更多
基金supported partially by the National Natural Science Foundation of China(No.40974004 and 40974016)the Key Laboratory of Surveying and Mapping Technology on Island and Reef of NASMG,China(No.2011A01)the Key Laboratory of Advanced Surveying Engineering of NASMG,China(No.TJES1101)
文摘Crustal deformation can provide constraints for studying earthquake rupture and shock wave transmission for the Mw9.0 eastern Japan great earthquake. Using the single- epoch precise point positioning (PPP) method and the appropriate positioning flow, we process GPS data from six IGS (International GNSS Service) sites (e.g., MIZU, TSK2, USUD, MTKA, AIRA and KSMV) located in Japan and obtain the positioning results with centimeter scale precision. The displacement time series of the six sites are analyzed using the least squares spectral analysis method to estimate deformations caused by the Mw9.0 mainshock and the Mw7.9 aftershock, and the cumulative displacements after 1 day. Mainshock displacements at station MIZU, the nearest site to the mainshock in the North (N), East (E), and Up (U) directions, are -1.202 m, 2.180 m and -0.104 m, respectively, and the cumulative deformations after 1 day are -1.117 m, 2.071 m and -0.072 m, respectively. The displacements at station KSMV, the nearest site to the Mw7.9 aftershock in the N, E and U directions, are -0.032 m, 0.742 m and -0.345 m, respectively. The other sites obviously experienced eastern movements and subsidence. The deformation vectors indicate that the horizontal displacements caused by the earthquake point to the epicenter and rupture. Elastic bounds evidently took place at all sites. The results indicate that the crustal movements and earthquake were part of a megathrust caused by the Pacific Plate sinking under the North American Plate to the northeast of Japan island arc.
基金Funded by the Natural Science Foundation of China (No. 60873030)National High Technology Research and Development Program of China (No. 2007AA01Z309)Defense Pre-Research Foundation of China (No. 9140A04010209JW0504 and No. 9140A15040208JW0501)
文摘A defining characteristic of continuous queries over on-line data streams,possibly bounded by sliding windows,is the potentially infinite and time-evolving nature of their inputs and outputs.For different update patterns of continuous queries,suitable data structures bring great query processing efficiency.In this paper,we proposed a data structure suitable for weak nonmonotonic update pattern in which the lifetime of each tuple is known at generation time,but the length of lifetime is not necessarily the same.The new data structure combined the ladder queue with the feature of weak non-monotonic update pattern.The experiment results show that the new data structure performs much better than the traditional calendar queue in many cases.
文摘This paper aims to examine the existence of calendar anomalies including month-of-year effect, turn-of-month effect, and weekend effect in Thai stock market. The stock return is computed from SET index during 1988 to 2009 and the SET50 index gathered since it was created in 1995. The unit root test is performed to ensure that the stock return series have no unit root. The multiple regression techniques using dummy variables are employed to test the difference of the return during each calendar anomalies period. If the regression model suffers from conditional heteroskedasticity, the GARCH (1, 1) model will be used instead of normal ordinary least square regression. It was found that the calendar anomalies exist in Thai stock market. The return is abnormally high during December and January, which can be addressed to be the turn-of-year effect. The return during the turn-of-month period, which can be defined as the last trading day and the first four trading days of the following months, is also abnormally high. Finally, the return is also abnormally high on Fridays but abnormally low on Mondays, which is addressed as weekend effect. This may create the opportunity to make above-average profit to investors exploiting these calendar anomalies. Although these calendar anomalies may be difficult to be exploited in practice because of transaction costs and ability to replicate the stock index, the existing evidence of calendar anomalies can help investors as the clue for the timing of investment.
文摘This study investigates calendar anomalies: day-of-the-week effect and seasonal effect in the Value-at-Risk (VaR) analysis of stock returns for AAPL during the period of 1995 through 2015. The statistical properties are examined and a comprehensive set of diagnostic checks are made on the two decades of AAPL daily stock returns. Combing the Extreme Value Approach together with a statistical analysis, it is learnt that the lowest VaR occurs on Fridays and Mondays typically. Moreover, high Q4 and Q3 VaR are observed during the test period. These results are valuable for anyone who needs evaluation and forecasts of the risk situation in AAPL. Moreover, this methodology, which is applicable to any other stocks or portfolios, is more realistic and comprehensive than the standard normal distribution based VaR model that is commonly used.
文摘The purpose of this paper is to clarify how the Kabu-ido system can be employed to successfully regulate groundwater pumping. This was accomplished by analyzing surviving historical documents, including budgetary notes and a diary. The Kabu-ido system was a customary institution for groundwater management in a ring levee area of the Noubi Plain in Japan that consisted of three programs: restriction of groundwater pumping through a permit system, groundwater pricing and economic compensation. The system was created in the 1810s and survived for 100 years. This paper covers the Kabu-ido system from the 1810s to the 1860s, the first half of the 100-year history. Excessive groundwater pumping is not a new environmental problem. Although many case studies have investigated remedial actions, few have investigated how local residents addressed the problem before the 20th century because of a lack of documents. The Kabu-ido system is an exception in which of the procedure was documented in writing. The historical data indicate that it was a pioneering institution for groundwater management.
文摘This study examines local people's perception of forest resources (FR) conservation around two plantation forest reserves (PFR) and two natural forest reserves (NFR) in Ekiti State in order to determine the factors that can contribute to sustainable FR conservation. Questionnaire and interview were used to collect data from 240 respondents. Data were analyzed using descriptive and inferential statistics. 75.0% and 86.1% of respondents around PFR recognized the importance of conserving the FR for economic benefits and biodiversity respectively, while 66.7% would not want the FR conserved for cultural values. 82.9% of respondents around NFR would want the FR conserved for economic benefits, while 74.3% and 66.7% would not want the forest conserved for cultural values and biodiversity respectively. For efficient conservation, participation in forest management and involvement in decision making with means of 3.45 and 3.52 ranked highest in PFR and NFR respectively. Probit regression analysis showed that in PFR and NFR, age, education and income were positively significant to FR conservation (p 〈 0.05). Creating an enabling environment that will make local people appreciate historical cultural values of the forest for tourism is essential for efficient FR conservation in the study area.
文摘The three-day event 2016 China·Anyang Textile&Clothing Fair made its debut today in Anyang Internationa Convention and Exhibition Center,covering an area of 5,000 square meters and attracting more than 220 exhibitors.Themed on"cross-border cooperation&win-win development",the fair aimed to expand the market,increase effectiveness,and seek for cooperation
文摘Historic cities are cultural achievements that are gradually created by inhabitants over the centuries. In developed countries, the conservation of historic cities seems to be generally acknowledged as a method of community development that does not depend on huge exploitation. On the other hand, no sufficient countermeasures have been taken in developing countries because most native stakeholders are still interested in development. Here the author could focus on so-called "international cooperation", but urban conservation for historic cities where inhabitants actually live is still a minor consideration except for some government-based conservation projects for monuments and isolated examples of cultural heritage. In this paper, the example was taken of a conservation project which has been carried out by JICA (Japanese International Cooperation Agency) in Damascus, the old capital of Syria. The target area for the project is "Qanawat South". Although the origin of"Qanawat South" dates back to the Roman age, efforts for urban conservation have not been well organized, partly because the area is located outside of the so-called old city registered as a world heritage site. For example, the master plan of 1968 indicated the redistribution of the traditional quarters, while some conservation laws have been restricting the regeneration of the area. Moreover, there is not yet any consensus among the stakeholders concerning the historical value of the quarter, they are still questioning why the area should be conserved rather than being freely sold or developed and what and how they should contribute to conservation. Based on analysis of the actual situation of Qasr al-Hajjaj Street, this paper examines a method called "restoration-type" facade improvement adopted by JICA, for which the final goal is not only to maintain the appearance of the street but also to activate the life of the habitants of the street.
文摘Nigerian literatures contain history in the oral tradition and folklore like satire, proverbs, chants, symbolism etc. in the pre-literate period, Nigeria enjoyed high level of verbal art civilization which traditional rulers and the generality of the populace patronized. The oral tradition served as medium of preservation of culture and history of the ancient past and experiences. Though, most Nigerians can still remember their family history, folklore, tradition and genealogy, only few oral artists and youths of nowadays possess the skill and ability needed to chant the lengthy oral literature. It is in the light of the above that this study examined the effect of oral tradition, folklore, and history on the development of education in Nigeria, 1977 till date. The study adopted historical research method using primary and secondary sources of information to analyze data. Primary sources include, like archive materials, oral interviews and secondary sources include, like textbooks, speeches, journals, and internet materials and images. The outlines of the paper are: the definition of concepts, historical background of Nigerian oral tradition, and folklore in the educational system, the place of oral tradition, folklore and history in the education policy in Nigeria since 1977, the effect of oral tradition, folklore and history on the development of education in Nigeria since 1977, the prospects of oral traditions, folklore and history on the development of education in Nigeria, conclusion and a few recommendations for future improvement. The findings of the study revealed that oral traditions, folklore and history were the bed-rock for the development of education and society in the pre-colonial period, but these were dropped gradually with the advent of the colonial masters and gradually deteriorate both in the educational curriculum and general conduct of the society and these have adverse effect on the nation's economy. It is recommended that the beauty of Nigerian history, oral and written traditions, culture, folklore like proverbs, chants, satire and symbolism, be brought back into the school system, politics and every sector of the Nigerian economy for proper advancement to take place in the education sector and for overall national development.
文摘This paper is divided into three subjects: Japanese Genghis Khan, Chinese tofu and Korean bibimbap (mixed rice with vegetables). It will be a cross-cultural and comparative research on historic foods among three countries (Japan, China, and Korea), in relation to national culinary identity.
文摘In 1931, Japan launched the Sept. 18th attack against China. Ever since, there have been many different views over the origin of Japan's road toward war, which mostly concern with Japan's land policy. This paper holds that Japan's land policy was an evolving one and it transformed along the change of its supporters and implementers during different stages. It is mostly a contention about the different strategies on Manchuria and Mongol; the northward or the southward advance faction; the orientations of the radical military occupation or the moderate economic occupation. Interestingly, the development of Japan's postwar policy toward China, especially in the recent years, resembles the evolvement of Japan's land policy in the 19th century. They both show tendency from the economic effort to the military activity.
文摘Objectives: To review the calendar, mortality and morbidity of Iraq-Iran chemical war among Iranians based on researchers' reports. Methods: We used national and international databanks such as PubMed, ISI, Scopus, Irandoc and Iranmedex and studied 350 articles related to chemical agents and their effects on different organs. The main criteria for qualification of articles were relevancy orientation and being published in approved medical journals. Results: The Iraqi army invaded to west and southwest Iran using chemical weapons such as nerve agents (NAs) and sulfur mustard (SM). Most victims were civilians including women and children. These attacks had imposed more than 150 types of diseases and complications on Iranians and the frequency of death was 2%-3%. Most reports were about respiratory problems and a few were in the domain of socio-economic damages Conclusion: At present, 25 years after me end of war, the victims are faced with different complications induced by chemical agents and it is estimated that they will be continuously troubled by these problems in future.