We present a novel method to implement the radix-2 fast Fourier transform (FFT) algorithm on field programmable gate arrays (FPGA).The FFT architecture exploits parallelism by having more pipelined units in the stages...We present a novel method to implement the radix-2 fast Fourier transform (FFT) algorithm on field programmable gate arrays (FPGA).The FFT architecture exploits parallelism by having more pipelined units in the stages,and more parallel units within a stage.It has the noticeable advantages of high speed and more efficient resource utilization by employing four ganged butterfly engines (GBEs),and can be well matched to the placement of the resources on the FPGA.We adopt the decimation-infrequency (DIF) radix-2 FFT algorithm and implement the FFT processor on a state-of-the-art FPGA.Experimental results show that the processor can compute 1024-point complex radix-2 FFT in about 11 μs with a clock frequency of 200 MHz.展开更多
Two new freshwater atyid shrimps, Caridina angustipes sp nov.and C clavipes sp nov.from Hunan Province,China are described. C angustipes sp nov.is similar to C baojingensis Guo,He et Bai,1992,b...Two new freshwater atyid shrimps, Caridina angustipes sp nov.and C clavipes sp nov.from Hunan Province,China are described. C angustipes sp nov.is similar to C baojingensis Guo,He et Bai,1992,but with longer rostrum,15-27 dorsal teeth,3-6 ventral teeth,and straighter inner margin of endopods in male 1st pleopods. C clavipes sp nov.is similar to C angustipes ,but with narrower distal and fewer spines on inner margin of endopds in male 1st pleopods,and shorter and thinner appendix masculina in male 2nd pleopods with only 1 spine on inner lateral margin and 4 spines in apex.The holotypes are deposited in Shanghai Fisheries University.Some representative paratypes are deposited in Foshan Science and Technology College.展开更多
The three dimensional variable cross-section roll forming is a kind of new metal forming technol- ogy which combines large forming force, multi-axis linkage movement and space synergic movement, and the sequential syn...The three dimensional variable cross-section roll forming is a kind of new metal forming technol- ogy which combines large forming force, multi-axis linkage movement and space synergic movement, and the sequential synergic movement of the ganged roller group is used to complete the metal sheet forming according to the shape of the complicated and variable forming part data. The control system should meet the demands of quick response to the test requirements of the product part. A new kind of real time data driving multi-axis linkage and synergic movement control strategy of 3D roll forming is put forward in the paper. In the new control strategy, the forming data are automatically generated according to the shape of the parts, and the multi-axis linkage movement together with cooperative motion among the six stands of the 3D roll forming machine is driven by the real-time information, and the control nodes are also driven by the forming data. The new control strategy is applied to a 48 axis 3D roll forming machine developed by our research center, and the control servo period is less than 10ms. A forming experiment of variable cross section part is carried out, and the forming preci- sion is better than ＋ 0.5mm by the control strategy. The result of the experiment proves that the control strategy has significant potentiality for the development of 3D roll forming production line with large scale, multi-axis ganged and svner^ic movement展开更多
Uttarakhand state in India is well known for its mountainous ecosystems, traditional communities and a variety of ecotourism destinations. Among various tourism activities, River Rafting along the banks of the Ganges ...Uttarakhand state in India is well known for its mountainous ecosystems, traditional communities and a variety of ecotourism destinations. Among various tourism activities, River Rafting along the banks of the Ganges River has increased tremendously for two decades, and has had unprecedented impacts on the traditional communities and the bio-diversity. Therefore, it is meaningful to do a comprehensive study on the various impacts associated with river rafting so as to suggest the pathways to achieve the environmental sustainability in this region. In this study, we collected primary data from randomly selected population units across all stake holders such as local people （n = too）, and camp personnel （n = 22）, through a pre-tested questionnaire survey between August 2009 and May 2010. The questionnaire contains issues on culture, social, economic, institutional and associated perceived impacts on pollution and biodiversity including views for sustainability. Secondary information was also collected from various sources and government records to supplement and strengthen the analysis. The impacts were analyzed qualitatively through a ranking mechanism to facilitate the decision making process. The perception of the interviewee about the various possible impacts of rafting was discussed with mitigating mechanism. The ranking analysis as percollected data reveals that economy and education of local community was improved significantly; however aquatic and terrestrial fauna, social cohesion and pollution （water, air, land） were significantly deteriorated. The results show that the existing practices are not sufficient to address the adverse impacts. Improvement in practices is necessary, mainly in the policy regime. Based on the analysis, some measures are recommended on how to protect community interest and environment with the development of river rafting as an ecotourism opportunity.展开更多
This article introduces various editions of Ben Cao Gang Mu(《本草纲目》Compendium of Materia Medica)and displays or collects in the Shanghai Museum of Traditional Chinese Medicine(TCM),along with many other works on ...This article introduces various editions of Ben Cao Gang Mu(《本草纲目》Compendium of Materia Medica)and displays or collects in the Shanghai Museum of Traditional Chinese Medicine(TCM),along with many other works on the study of Li Shizhen.Li Shizhen is not only a distinguished physician and pharmacist in the Ming dynasty of China but also a great scientist in human history.The most prominent contribution Li had made was sorting and developing the traditional Chinese herbal medicine,with the compilation of Ben Cao Gang Mu(《本草纲目》Compendium of Materia Medica),which represented the highest level of pharmaceutical development of TCM from a new starting line.展开更多
Salmonella is one of the major pathogenic bacteria present in contaminated water. 16-23S rRNA spacer region has been reported to be polymorphic at serovar level in Salmonella. Salmonella isolates obtained from Ganges ...Salmonella is one of the major pathogenic bacteria present in contaminated water. 16-23S rRNA spacer region has been reported to be polymorphic at serovar level in Salmonella. Salmonella isolates obtained from Ganges river water were studied for 16-23S rRNA spacer region polymorphism. Thirty three isolates belonging to eight serovars (S. Typhimurium, S. Abuja, S. Pantypridd, S. Lagos, S. Chinkual, S. Zwickau, S. Goldenberg and S. Oritamerin) were studied for the polymorphism. Out of 33 isolates, 15 different profiles were observed no serovar specific profile. Our findings indicate that 16-23S rRNA spacer region is not specific at serovar level, but can be used for differentiation of different Salmonella isolates.展开更多
The arsenic contamination of groundwater in Uttar Pradesh State was first recognized in 2003 and is now seen at 20 Districts out of 70 Districts. University of Miyazaki has performed the arsenic mitigation project in ...The arsenic contamination of groundwater in Uttar Pradesh State was first recognized in 2003 and is now seen at 20 Districts out of 70 Districts. University of Miyazaki has performed the arsenic mitigation project in Bahraich District, severest arsenic-affected one in the 20 Districts, from June 2008 until now, with JICA (Japan International Cooperation Agency). The integrated mitigation, such as the raising awareness of villager, installing of alternative water supply units and healthcare of arsenocosis patients, have been executed at the 2 villages. The symptom of the arsenocosis patients was not so severe, which will be, therefore, improved by drinking arsenic-safe water supplied through arsenic removal units, installed by this project. In this paper, following results is discussed for the situation and mechanism of arsenic contamination of groundwater, objected in connection with the installation of arsenic removal units: 1) Groundwater is almost contaminated with arsenic in deep tubewell (depth: about 30 m), but scarcely in shallow tubewell (depth: about 10 m);2) Arsenic contaminated groundwater is under the reduced condition with the oxidized condition for no-arsenic contaminated groundwater;3) Arsenic concentration shows almost linear correlation with concentrations of Fe2+ and -N;4) Ground is composed of sand with high arsenic content at around 25 m depth;5) Arsenic exists mainly in the phase of reducible fraction or weak acid soluble fraction but no oxidizable fraction in the ground.展开更多
The destructive cult is an underworld gang organization with the witchcraft and anti-social characteristics, in ＂Theliving god＂, namely the gang master, as the faith. The cause of formation bases on mankind cognitiv...The destructive cult is an underworld gang organization with the witchcraft and anti-social characteristics, in ＂Theliving god＂, namely the gang master, as the faith. The cause of formation bases on mankind cognitive level andsocial environment except for artificial factors. So in any time, the destructive cult has the possibility and necessityof its existence. In paper, it emphasizes that we should strengthen scientific education, open mind and sublimationof self at the same time of improving society. In this way, can only we eliminate the influence of the cult, breakdown the foundations of the cult.展开更多
Soil minerals study is vital in terms of investigating the major soil forming compounds and to find out the fate of minor and trace elements in soils. It is also essential for the soil-plant interaction purpose. To id...Soil minerals study is vital in terms of investigating the major soil forming compounds and to find out the fate of minor and trace elements in soils. It is also essential for the soil-plant interaction purpose. To identify soil mineral phases especially clay minerals, X-ray diffraction (XRD) has been a popular technique. The clay mineralogical information of soils in Bangladesh is limited, especially in Ganges flood plain region (Agro Ecological Zone (AEZ) 12 and 13). Therefore, to overcome this limitation, in this study, we performed XRD analysis of <2 mm fractions soil samples of AEX 12 and 13. However, identifying mineralogical phases by XRD in <2 mm fractions soils is not so straight-forward due to many practical problems. We fully matched only two mineralogical phases in all the soil samples which is quartz and potassium-Aluminum-Silicate. However, the full XRD peaks indicate that more minerals are also present, but due to heterogeneity of soils samples, it is difficult to find other minerals phases by only XRD peak of <2 mm fractions. Therefore, to find more information about mineralogical phases, we performed XRF analysis that provides the elemental composition of minerals phase as oxide. XRF analysis indicated the presence of secondary minerals like illite and chlorite. The presence of high percentage Fe oxide not only indicated the iron mineral phase (goethite and ferrihydrite) but also indicated iron rich high charge smectite minerals (beidellite). The presence of iron rich smectite minerals in the Ganges sediments reported in several previous studies. Thus, we concluded that only XRD in <2 mm fractions of soils is not adequate to identify the mineralogical phases of soil samples. Others analyses like XRF, XRD in <2 μm fractions will be necessary to locate an entire image of soil mineralogical phases.展开更多
As disturbing as youth and gun violence is, it is not hard to reduce the mortality rate because it is preventable. The information provided in this research will help to get policies waiting to be reviewed by legislat...As disturbing as youth and gun violence is, it is not hard to reduce the mortality rate because it is preventable. The information provided in this research will help to get policies waiting to be reviewed by legislators, and any new proposal that reaches the appropriate legislative chamber, reviewed without obstacles and will help to prevent youth violence. Upon completion of this research, the study shows that rates of youth violence have decreased based on programs implemented at the state government level with a stronger juvenile justice system holding offenders accountable to ensure public safety and reduce youth violence and victimization. The study shows that community and school involvement with law enforcement and government agencies are some of the strategies needed to help reduce gun violence and rebuild communities.展开更多
Ben Cao Gang Mu(《本草纲目》Compendium of Materia Medica)written by Li Shizhen(李时珍)was first introduced to Japan in the early 17th century and played an important role in the development of Japanese Material Medica...Ben Cao Gang Mu(《本草纲目》Compendium of Materia Medica)written by Li Shizhen(李时珍)was first introduced to Japan in the early 17th century and played an important role in the development of Japanese Material Medica and natural history in the Edo period.Tokugawa Ieyasu(德川家康),a shogun general,and Hayashi Razan(林罗山),a famous Confucianist in the Edo period,first recommended Ben Cao Gang Mu in Japan.Then,there emerged more scholars at herbal medicine in Japan who studied and taught Ben Cao Gang Mu through family teaching and master-apprenticeship training.Among them,the work of scholars such as Kaibara Ekiken(贝原益轩),Okamoto Ippou(冈本一抱),Matsuoka Gentatsu(松冈玄达),Ono Ranzan(小野蘭山),Iwasaki Kan-en(岩崎灌园),and Maeda Toshiyasu(前田利保)is of great significance to promote the wide communication and acceptance of Ben Cao Gang Mu in the Edo period in Japan.The rise of the Ben Cao Gang Mu in Japan fueled the development of Japanese herbal science and natural history to a new level.展开更多
The continuous rise of consumer price index (CPI) has increased concern over China's macroeconomic situation. Will inflation have a disastrous impact on the Chinese economy? What risks are brewing behind the boomi...The continuous rise of consumer price index (CPI) has increased concern over China's macroeconomic situation. Will inflation have a disastrous impact on the Chinese economy? What risks are brewing behind the booming real estate and stock markets? Have bubbles already occurred in the Chinese economy? From his office in Guohong Building, Beijing, Dr. Fan Gang gave his views on these questions in an exclusive interview with China Economist.展开更多
文摘We present a novel method to implement the radix-2 fast Fourier transform (FFT) algorithm on field programmable gate arrays (FPGA).The FFT architecture exploits parallelism by having more pipelined units in the stages,and more parallel units within a stage.It has the noticeable advantages of high speed and more efficient resource utilization by employing four ganged butterfly engines (GBEs),and can be well matched to the placement of the resources on the FPGA.We adopt the decimation-infrequency (DIF) radix-2 FFT algorithm and implement the FFT processor on a state-of-the-art FPGA.Experimental results show that the processor can compute 1024-point complex radix-2 FFT in about 11 μs with a clock frequency of 200 MHz.
文摘Two new freshwater atyid shrimps, Caridina angustipes sp nov.and C clavipes sp nov.from Hunan Province,China are described. C angustipes sp nov.is similar to C baojingensis Guo,He et Bai,1992,but with longer rostrum,15-27 dorsal teeth,3-6 ventral teeth,and straighter inner margin of endopods in male 1st pleopods. C clavipes sp nov.is similar to C angustipes ,but with narrower distal and fewer spines on inner margin of endopds in male 1st pleopods,and shorter and thinner appendix masculina in male 2nd pleopods with only 1 spine on inner lateral margin and 4 spines in apex.The holotypes are deposited in Shanghai Fisheries University.Some representative paratypes are deposited in Foshan Science and Technology College.
基金Supported by National Key Technology R&D Program(No.2011BAG03B03)
文摘The three dimensional variable cross-section roll forming is a kind of new metal forming technol- ogy which combines large forming force, multi-axis linkage movement and space synergic movement, and the sequential synergic movement of the ganged roller group is used to complete the metal sheet forming according to the shape of the complicated and variable forming part data. The control system should meet the demands of quick response to the test requirements of the product part. A new kind of real time data driving multi-axis linkage and synergic movement control strategy of 3D roll forming is put forward in the paper. In the new control strategy, the forming data are automatically generated according to the shape of the parts, and the multi-axis linkage movement together with cooperative motion among the six stands of the 3D roll forming machine is driven by the real-time information, and the control nodes are also driven by the forming data. The new control strategy is applied to a 48 axis 3D roll forming machine developed by our research center, and the control servo period is less than 10ms. A forming experiment of variable cross section part is carried out, and the forming preci- sion is better than ＋ 0.5mm by the control strategy. The result of the experiment proves that the control strategy has significant potentiality for the development of 3D roll forming production line with large scale, multi-axis ganged and svner^ic movement
文摘Uttarakhand state in India is well known for its mountainous ecosystems, traditional communities and a variety of ecotourism destinations. Among various tourism activities, River Rafting along the banks of the Ganges River has increased tremendously for two decades, and has had unprecedented impacts on the traditional communities and the bio-diversity. Therefore, it is meaningful to do a comprehensive study on the various impacts associated with river rafting so as to suggest the pathways to achieve the environmental sustainability in this region. In this study, we collected primary data from randomly selected population units across all stake holders such as local people （n = too）, and camp personnel （n = 22）, through a pre-tested questionnaire survey between August 2009 and May 2010. The questionnaire contains issues on culture, social, economic, institutional and associated perceived impacts on pollution and biodiversity including views for sustainability. Secondary information was also collected from various sources and government records to supplement and strengthen the analysis. The impacts were analyzed qualitatively through a ranking mechanism to facilitate the decision making process. The perception of the interviewee about the various possible impacts of rafting was discussed with mitigating mechanism. The ranking analysis as percollected data reveals that economy and education of local community was improved significantly; however aquatic and terrestrial fauna, social cohesion and pollution （water, air, land） were significantly deteriorated. The results show that the existing practices are not sufficient to address the adverse impacts. Improvement in practices is necessary, mainly in the policy regime. Based on the analysis, some measures are recommended on how to protect community interest and environment with the development of river rafting as an ecotourism opportunity.
文摘This article introduces various editions of Ben Cao Gang Mu(《本草纲目》Compendium of Materia Medica)and displays or collects in the Shanghai Museum of Traditional Chinese Medicine(TCM),along with many other works on the study of Li Shizhen.Li Shizhen is not only a distinguished physician and pharmacist in the Ming dynasty of China but also a great scientist in human history.The most prominent contribution Li had made was sorting and developing the traditional Chinese herbal medicine,with the compilation of Ben Cao Gang Mu(《本草纲目》Compendium of Materia Medica),which represented the highest level of pharmaceutical development of TCM from a new starting line.
文摘Salmonella is one of the major pathogenic bacteria present in contaminated water. 16-23S rRNA spacer region has been reported to be polymorphic at serovar level in Salmonella. Salmonella isolates obtained from Ganges river water were studied for 16-23S rRNA spacer region polymorphism. Thirty three isolates belonging to eight serovars (S. Typhimurium, S. Abuja, S. Pantypridd, S. Lagos, S. Chinkual, S. Zwickau, S. Goldenberg and S. Oritamerin) were studied for the polymorphism. Out of 33 isolates, 15 different profiles were observed no serovar specific profile. Our findings indicate that 16-23S rRNA spacer region is not specific at serovar level, but can be used for differentiation of different Salmonella isolates.
文摘The arsenic contamination of groundwater in Uttar Pradesh State was first recognized in 2003 and is now seen at 20 Districts out of 70 Districts. University of Miyazaki has performed the arsenic mitigation project in Bahraich District, severest arsenic-affected one in the 20 Districts, from June 2008 until now, with JICA (Japan International Cooperation Agency). The integrated mitigation, such as the raising awareness of villager, installing of alternative water supply units and healthcare of arsenocosis patients, have been executed at the 2 villages. The symptom of the arsenocosis patients was not so severe, which will be, therefore, improved by drinking arsenic-safe water supplied through arsenic removal units, installed by this project. In this paper, following results is discussed for the situation and mechanism of arsenic contamination of groundwater, objected in connection with the installation of arsenic removal units: 1) Groundwater is almost contaminated with arsenic in deep tubewell (depth: about 30 m), but scarcely in shallow tubewell (depth: about 10 m);2) Arsenic contaminated groundwater is under the reduced condition with the oxidized condition for no-arsenic contaminated groundwater;3) Arsenic concentration shows almost linear correlation with concentrations of Fe2+ and -N;4) Ground is composed of sand with high arsenic content at around 25 m depth;5) Arsenic exists mainly in the phase of reducible fraction or weak acid soluble fraction but no oxidizable fraction in the ground.
文摘The destructive cult is an underworld gang organization with the witchcraft and anti-social characteristics, in ＂Theliving god＂, namely the gang master, as the faith. The cause of formation bases on mankind cognitive level andsocial environment except for artificial factors. So in any time, the destructive cult has the possibility and necessityof its existence. In paper, it emphasizes that we should strengthen scientific education, open mind and sublimationof self at the same time of improving society. In this way, can only we eliminate the influence of the cult, breakdown the foundations of the cult.
文摘Soil minerals study is vital in terms of investigating the major soil forming compounds and to find out the fate of minor and trace elements in soils. It is also essential for the soil-plant interaction purpose. To identify soil mineral phases especially clay minerals, X-ray diffraction (XRD) has been a popular technique. The clay mineralogical information of soils in Bangladesh is limited, especially in Ganges flood plain region (Agro Ecological Zone (AEZ) 12 and 13). Therefore, to overcome this limitation, in this study, we performed XRD analysis of <2 mm fractions soil samples of AEX 12 and 13. However, identifying mineralogical phases by XRD in <2 mm fractions soils is not so straight-forward due to many practical problems. We fully matched only two mineralogical phases in all the soil samples which is quartz and potassium-Aluminum-Silicate. However, the full XRD peaks indicate that more minerals are also present, but due to heterogeneity of soils samples, it is difficult to find other minerals phases by only XRD peak of <2 mm fractions. Therefore, to find more information about mineralogical phases, we performed XRF analysis that provides the elemental composition of minerals phase as oxide. XRF analysis indicated the presence of secondary minerals like illite and chlorite. The presence of high percentage Fe oxide not only indicated the iron mineral phase (goethite and ferrihydrite) but also indicated iron rich high charge smectite minerals (beidellite). The presence of iron rich smectite minerals in the Ganges sediments reported in several previous studies. Thus, we concluded that only XRD in <2 mm fractions of soils is not adequate to identify the mineralogical phases of soil samples. Others analyses like XRF, XRD in <2 μm fractions will be necessary to locate an entire image of soil mineralogical phases.
文摘As disturbing as youth and gun violence is, it is not hard to reduce the mortality rate because it is preventable. The information provided in this research will help to get policies waiting to be reviewed by legislators, and any new proposal that reaches the appropriate legislative chamber, reviewed without obstacles and will help to prevent youth violence. Upon completion of this research, the study shows that rates of youth violence have decreased based on programs implemented at the state government level with a stronger juvenile justice system holding offenders accountable to ensure public safety and reduce youth violence and victimization. The study shows that community and school involvement with law enforcement and government agencies are some of the strategies needed to help reduce gun violence and rebuild communities.
基金Project funded by China Postdoctoral Science Foundation(No.2018M632153)New Youth Teacher Training Funding Scheme at Shanghai University of Traditional Chinese Medicine(No.A1-U17205010471).
文摘Ben Cao Gang Mu(《本草纲目》Compendium of Materia Medica)written by Li Shizhen(李时珍)was first introduced to Japan in the early 17th century and played an important role in the development of Japanese Material Medica and natural history in the Edo period.Tokugawa Ieyasu(德川家康),a shogun general,and Hayashi Razan(林罗山),a famous Confucianist in the Edo period,first recommended Ben Cao Gang Mu in Japan.Then,there emerged more scholars at herbal medicine in Japan who studied and taught Ben Cao Gang Mu through family teaching and master-apprenticeship training.Among them,the work of scholars such as Kaibara Ekiken(贝原益轩),Okamoto Ippou(冈本一抱),Matsuoka Gentatsu(松冈玄达),Ono Ranzan(小野蘭山),Iwasaki Kan-en(岩崎灌园),and Maeda Toshiyasu(前田利保)is of great significance to promote the wide communication and acceptance of Ben Cao Gang Mu in the Edo period in Japan.The rise of the Ben Cao Gang Mu in Japan fueled the development of Japanese herbal science and natural history to a new level.
文摘The continuous rise of consumer price index (CPI) has increased concern over China's macroeconomic situation. Will inflation have a disastrous impact on the Chinese economy? What risks are brewing behind the booming real estate and stock markets? Have bubbles already occurred in the Chinese economy? From his office in Guohong Building, Beijing, Dr. Fan Gang gave his views on these questions in an exclusive interview with China Economist.
