Under consideration that the profiles of bands at close wavelengths are quite similar and the curvelets are good at capturing profiles, a junk band recovery algorithm for hyperspectral data based on curvelet transform...Under consideration that the profiles of bands at close wavelengths are quite similar and the curvelets are good at capturing profiles, a junk band recovery algorithm for hyperspectral data based on curvelet transform is proposed. Both the noisy bands and the noise-free bands are transformed via curvelet band by band. The high frequency coefficients in junk bands are replaced with linear interpolation of the high frequency coefficients in noise-flee bands, and the low frequency coefficients remain the same to keep the main spectral characteristics from being distorted. Jutak bands then are recovered after the inverse curvelet transform. The performance of this method is tested on the hyperspectral data cube obtained by airborne visible/infrared imaging spectrometer （AVIRIS）. The experimental results show that the proposed method is superior to the traditional denoising method BayesShrink and the art-of-state Curvelet Shrinkage in both roots of mean square error （RMSE） and peak-signal-to-noise ratio （PSNR） of recovered bands.展开更多
From the three aspects of material culture,institutional culture and spiritual culture,the connotation and development of Shanghai sand junk culture and the position in Shanghai shipping culture were analyzed,and the ...From the three aspects of material culture,institutional culture and spiritual culture,the connotation and development of Shanghai sand junk culture and the position in Shanghai shipping culture were analyzed,and the relationship between Shanghai sand junk culture and the development of Shanghai International Shipping Center was studied according to the construction target and the soft power demand of Shanghai International Shipping Center.展开更多
From the aspects of the spiritual core of modern Shanghai sand junk culture,the influence of modern sand junk culture on the urbanization process of Shanghai,and the inheritance of modern Shanghai sand junk culture,th...From the aspects of the spiritual core of modern Shanghai sand junk culture,the influence of modern sand junk culture on the urbanization process of Shanghai,and the inheritance of modern Shanghai sand junk culture,the functions of modern Shanghai sand junk culture were analyzed to provide certain reference for the application and inheritance of sand junk culture in the new era.展开更多
Shanghai sand junk culture and marine culture were introduced from the four aspects of culture(physics,institution,behavior and mentality),and their relation was analyzed.The results show that there is a generic relat...Shanghai sand junk culture and marine culture were introduced from the four aspects of culture(physics,institution,behavior and mentality),and their relation was analyzed.The results show that there is a generic relationship between marine culture and Shanghai sand junk culture.Shanghai sand junk culture reflects the marine culture in a specific period and enriches the connotation of marine culture.Marine culture is the foundation of Shanghai sand junk culture,and provides new opportunities for the sustainable development of Shanghai sand junk culture.Therefore,the study of the relationship between Shanghai sand junk culture and marine culture is beneficial for the two to promote each other,and lays a solid cultural foundation for the realization of"maritime power".展开更多
From material,spiritual,institutional and behavioral aspects,Shanghai sand junk culture and Shanghai urban culture were studied,and the relationship between the two was analyzed.It is found that there are similarities...From material,spiritual,institutional and behavioral aspects,Shanghai sand junk culture and Shanghai urban culture were studied,and the relationship between the two was analyzed.It is found that there are similarities and individualities between Shanghai sand junk culture and Shanghai urban culture,and the two are closely compatible.展开更多
Starting from the perspective of shipping culture,sand junk culture in Shanghai during the Ming and Qing Dynasties was studied from the aspects of material,system,behavior and mentality.It is found that the change and...Starting from the perspective of shipping culture,sand junk culture in Shanghai during the Ming and Qing Dynasties was studied from the aspects of material,system,behavior and mentality.It is found that the change and development of sand junk culture in Shanghai during the Ming and Qing Dynasties are closely related to the convenient shipping conditions and economic activities."Sand junk culture"runs through the development of shipping industry in Shanghai area,reflecting a pioneering and enterprising,compatible and inclusive spirit.展开更多
The handicapped, a special group in society, usually encounter many difficulties in employment, marriage, and daily life.Some difficulties are what they cannot conquer by themselves. It is also not easy for them to in...The handicapped, a special group in society, usually encounter many difficulties in employment, marriage, and daily life.Some difficulties are what they cannot conquer by themselves. It is also not easy for them to integrate into society. However, if there is a person who helps the hand- icapped find a job, build up confidence and make their life worth; if there is a person who helps them set up their families and incorporate in a harmonious community;展开更多
1.used to do和be used to doing◆used to do意为“过去做某事”,后面接动词原形。例如:He used to like junk food.他过去喜欢垃圾食品。◆be used to doing意为“习惯于做某事”,后面接动词-ing形式。例如:He is used to getting up ...1.used to do和be used to doing◆used to do意为“过去做某事”,后面接动词原形。例如:He used to like junk food.他过去喜欢垃圾食品。◆be used to doing意为“习惯于做某事”,后面接动词-ing形式。例如:He is used to getting up early.他习惯早起。展开更多
There are many things that make me change in the past three years.Most of them make me better.One of the most important changes is I am healthier and stronger because of my exercise.As I ate junk food and seldom exerc...There are many things that make me change in the past three years.Most of them make me better.One of the most important changes is I am healthier and stronger because of my exercise.As I ate junk food and seldom exercised,I used to be fat.So I made a decision to do exercise for two hours once a week.展开更多
The Genome Balance Hypothesis originated from a recent study that provided a mechanism for the phenom- enon of genome dominance in ancient polyploids： unique 24nt RNA coverage near genes is greater in genes on the re...The Genome Balance Hypothesis originated from a recent study that provided a mechanism for the phenom- enon of genome dominance in ancient polyploids： unique 24nt RNA coverage near genes is greater in genes on the recessive subgenome irrespective of differences in gene expression. 24nt RNAs target transposons. Transposon position effects are now hypothesized to balance the expression of networked genes and pro- vide spring-like tension between pericentromeric heterochromatin and microtubules. The balance （coordi- nation） of gene expression and centromere movement is under selection. Our hypothesis states that this balance can be maintained by many or few transposons about equally well. We explain known balanced dis- tributions of junk DNA within genomes and between subgenomes in allopolyploids （and our hypothesis passes ＂the onion test＂ for any so-called solution to the C-value paradox）, importantly, when the allotetra- ploid maize chromosomes delete redundant genes, their nearby transposons are also lost; this result is ex- plained if transposons near genes function. The Genome Balance Hypothesis is hypothetical because the position effect mechanisms implicated are not proved to apply to all junk DNA, and the continuous nature of the centromeric and gene position effects have not yet been studied as a single phenomenon.展开更多
A poor boy grew into a billionaire through years of hard work The signs of business acumen had already appeared in Chen Guangbiao as early as 1978, when he was just a 10-year-old being raised in a poor farming family.
基金Project(10871231) supported by the National Natural Science Foundation of China
文摘Under consideration that the profiles of bands at close wavelengths are quite similar and the curvelets are good at capturing profiles, a junk band recovery algorithm for hyperspectral data based on curvelet transform is proposed. Both the noisy bands and the noise-free bands are transformed via curvelet band by band. The high frequency coefficients in junk bands are replaced with linear interpolation of the high frequency coefficients in noise-flee bands, and the low frequency coefficients remain the same to keep the main spectral characteristics from being distorted. Jutak bands then are recovered after the inverse curvelet transform. The performance of this method is tested on the hyperspectral data cube obtained by airborne visible/infrared imaging spectrometer （AVIRIS）. The experimental results show that the proposed method is superior to the traditional denoising method BayesShrink and the art-of-state Curvelet Shrinkage in both roots of mean square error （RMSE） and peak-signal-to-noise ratio （PSNR） of recovered bands.
基金Supported by Major Program of National Social Science Foundation of China(20&ZD130)。
文摘From the three aspects of material culture,institutional culture and spiritual culture,the connotation and development of Shanghai sand junk culture and the position in Shanghai shipping culture were analyzed,and the relationship between Shanghai sand junk culture and the development of Shanghai International Shipping Center was studied according to the construction target and the soft power demand of Shanghai International Shipping Center.
基金Supported by Major Program of National Social Science Foundation of China(20&ZD130).
文摘From the aspects of the spiritual core of modern Shanghai sand junk culture,the influence of modern sand junk culture on the urbanization process of Shanghai,and the inheritance of modern Shanghai sand junk culture,the functions of modern Shanghai sand junk culture were analyzed to provide certain reference for the application and inheritance of sand junk culture in the new era.
基金Supported by Major Program of National Social Science Foundation of China (20&ZD130)
文摘Shanghai sand junk culture and marine culture were introduced from the four aspects of culture(physics,institution,behavior and mentality),and their relation was analyzed.The results show that there is a generic relationship between marine culture and Shanghai sand junk culture.Shanghai sand junk culture reflects the marine culture in a specific period and enriches the connotation of marine culture.Marine culture is the foundation of Shanghai sand junk culture,and provides new opportunities for the sustainable development of Shanghai sand junk culture.Therefore,the study of the relationship between Shanghai sand junk culture and marine culture is beneficial for the two to promote each other,and lays a solid cultural foundation for the realization of"maritime power".
基金Supported by Major Program of National Social Science Foundation of China(20&ZD130).
文摘From material,spiritual,institutional and behavioral aspects,Shanghai sand junk culture and Shanghai urban culture were studied,and the relationship between the two was analyzed.It is found that there are similarities and individualities between Shanghai sand junk culture and Shanghai urban culture,and the two are closely compatible.
基金Supported by Major Program of National Social Science Foundation of China(20&ZD130).
文摘Starting from the perspective of shipping culture,sand junk culture in Shanghai during the Ming and Qing Dynasties was studied from the aspects of material,system,behavior and mentality.It is found that the change and development of sand junk culture in Shanghai during the Ming and Qing Dynasties are closely related to the convenient shipping conditions and economic activities."Sand junk culture"runs through the development of shipping industry in Shanghai area,reflecting a pioneering and enterprising,compatible and inclusive spirit.
文摘The handicapped, a special group in society, usually encounter many difficulties in employment, marriage, and daily life.Some difficulties are what they cannot conquer by themselves. It is also not easy for them to integrate into society. However, if there is a person who helps the hand- icapped find a job, build up confidence and make their life worth; if there is a person who helps them set up their families and incorporate in a harmonious community;
文摘1.used to do和be used to doing◆used to do意为“过去做某事”,后面接动词原形。例如:He used to like junk food.他过去喜欢垃圾食品。◆be used to doing意为“习惯于做某事”,后面接动词-ing形式。例如:He is used to getting up early.他习惯早起。
文摘There are many things that make me change in the past three years.Most of them make me better.One of the most important changes is I am healthier and stronger because of my exercise.As I ate junk food and seldom exercised,I used to be fat.So I made a decision to do exercise for two hours once a week.
文摘The Genome Balance Hypothesis originated from a recent study that provided a mechanism for the phenom- enon of genome dominance in ancient polyploids： unique 24nt RNA coverage near genes is greater in genes on the recessive subgenome irrespective of differences in gene expression. 24nt RNAs target transposons. Transposon position effects are now hypothesized to balance the expression of networked genes and pro- vide spring-like tension between pericentromeric heterochromatin and microtubules. The balance （coordi- nation） of gene expression and centromere movement is under selection. Our hypothesis states that this balance can be maintained by many or few transposons about equally well. We explain known balanced dis- tributions of junk DNA within genomes and between subgenomes in allopolyploids （and our hypothesis passes ＂the onion test＂ for any so-called solution to the C-value paradox）, importantly, when the allotetra- ploid maize chromosomes delete redundant genes, their nearby transposons are also lost; this result is ex- plained if transposons near genes function. The Genome Balance Hypothesis is hypothetical because the position effect mechanisms implicated are not proved to apply to all junk DNA, and the continuous nature of the centromeric and gene position effects have not yet been studied as a single phenomenon.
文摘A poor boy grew into a billionaire through years of hard work The signs of business acumen had already appeared in Chen Guangbiao as early as 1978, when he was just a 10-year-old being raised in a poor farming family.
