The vehement explosion in two-dimensional (2D) materials has led to one exciting new discoveries after another for the past 15 years. This circumstance resembles a famous movie “The Gold Rush”(1925) expressed the tr...The vehement explosion in two-dimensional (2D) materials has led to one exciting new discoveries after another for the past 15 years. This circumstance resembles a famous movie “The Gold Rush”(1925) expressed the true story about the stream of American people as crowded as the hurricane to join the gold racing in the 19th century. Similarly, the family of 2D materials has gained tremendous interest from broad scientific community in various fields, from fundamental chemistry and physics to materials and device engineering. This special issue includes both tutorial reviews and original research articles, providing general overviews of the recent progresses and bringing about the newest discoveries in this rapidly evolving field.展开更多
Remarkable Progress Friendly exchanges between China and Thailand can be traced back to morethan two thousand years ago.With the establishment in 1975 of diplomaticties,a new page opened up in the annuals of modern Si...Remarkable Progress Friendly exchanges between China and Thailand can be traced back to morethan two thousand years ago.With the establishment in 1975 of diplomaticties,a new page opened up in the annuals of modern Sino-Thai relations.Indeed, the past two decades have seen an all- round blossoming of this ages-longfriendship. In his meeting with the visiting Thai Prime Minister展开更多
On the afternoon of 21 December, 2006, Uli Schwarz, professor emeritus of the German Max Planck Society (MPG) and founding director of the CAS Shanghai Institute for Advanced Stud-
In this paper, an explicit expression of the blossom by the means of the B-form of B-B polynomial defined on a simplex is given. With its help, new but very short and simple blossom proofs of the most important theore...In this paper, an explicit expression of the blossom by the means of the B-form of B-B polynomial defined on a simplex is given. With its help, new but very short and simple blossom proofs of the most important theorems on B-B polynomials are derived, such as the degree elevation formula, the subdivision and the change of the underlying simplex procedure, the control points convergence property, the Marsden's identity.展开更多
In this paper,we introduce a new averaging rule,the nonlinear weighted averaging rule.As an application,this averaging rule is used to replace the midpoint averaging in the de Casteljau evaluation algorithm and with t...In this paper,we introduce a new averaging rule,the nonlinear weighted averaging rule.As an application,this averaging rule is used to replace the midpoint averaging in the de Casteljau evaluation algorithm and with this scheme we can also generate transcendental functions which cannot be generated by the classical de Casteljau algorithm.We also investigate the properties of the curves of the functions generated by blossoming,where the results show that these curves and the classical Bézier curves have some similar properties,including variation diminishing property and endpoint interpolation.However,the curves obtained by blossoming using nonlinear weighted averaging rules induced by certain functions violate some properties like convex hull property.展开更多
Chinese Premier Wen Jiabao has just concluded an official visit abroad that took him to three European countries-Finland, Britain and Germany-and the Centra) Asian nation of Tajikistan. Some political observers and sc...Chinese Premier Wen Jiabao has just concluded an official visit abroad that took him to three European countries-Finland, Britain and Germany-and the Centra) Asian nation of Tajikistan. Some political observers and scholars have hailed the premier's visit展开更多
Cultivated for its richness in nutrients, tomato culture is demanding fertilizer, especially in calcium. Calcium deficiencies and physiological disorders cause serious diseases in tomatoes. Blossom end rot (BER), in s...Cultivated for its richness in nutrients, tomato culture is demanding fertilizer, especially in calcium. Calcium deficiencies and physiological disorders cause serious diseases in tomatoes. Blossom end rot (BER), in susceptible cultivars, may cause severe economic losses. The goal of this study is to determine the effect of three organic calcium sources on the growth and quality of fruit production of tomatoes. Egg, snail and sea shell powders and extracts have been used as biological fertilizers. The experiment was conducted in a block factorial trial with three replications. The trials comprised two factors: calcium sources and calcium source form (powder and extract). The results showed that the growth parameters and yield were improved by the calcium source, whatever the form. Also, BER was lower in plants treated with calcium contrary to the control. However, plants treated with eggshells showed the best growth (mean) and the lowest rate (0.40%) of BER than the snail and sea shell.展开更多
Cultivated for its richness in nutrients, tomato culture is demanding fertilizer, especially in calcium. Calcium deficiencies and physiological disorders cause serious diseases in tomatoes. Blossom end rot (BER), in s...Cultivated for its richness in nutrients, tomato culture is demanding fertilizer, especially in calcium. Calcium deficiencies and physiological disorders cause serious diseases in tomatoes. Blossom end rot (BER), in susceptible cultivars, may cause severe economic losses. The goal of this study is to determine the effect of three organic calcium sources on the growth and quality of fruit production of tomatoes. Egg, snail and sea shell powders and extracts have been used as biological fertilizers. The experiment was conducted in a block factorial trial with three replications. The trials comprised two factors: calcium sources and calcium source form (powder and extract). The results showed that the growth parameters and yield were improved by the calcium source, whatever the form. Also, BER was lower in plants treated with calcium contrary to the control. However, plants treated with eggshells showed the best growth (mean) and the lowest rate (0.40%) of BER than the snail and sea shell.展开更多
This study was done to determine the causal organism of the pear blossom and bud blast in China. It was identified by a bacteriological test, electro-microscopic observation, Koch's postulate test, Biolog, fatty acid...This study was done to determine the causal organism of the pear blossom and bud blast in China. It was identified by a bacteriological test, electro-microscopic observation, Koch's postulate test, Biolog, fatty acid methyl esters (FAMEs), and a polymerase chain reaction (PCR) test, and compared with the standard reference strains. Six representative strains out of 20 pathogenic bacterial isolates from 16 diseased samples showed characteristics similar to three standard strains of Pseudomonas syringae pv. syringae from Belgium. They were identified as P. syringae pv. syringae with a Biolog similarity of 0.57-0.86 and FAMEs similarity of 0.58-0.81. The bacterium was reisolated from the symptomatic plants and blossoms. Identification as P. syringae pv. syringae was confirmed by using PCR primers and sequence tests, and compared with the above-mentioned results. The data supported the fact that the pear blossom and bud blast in China could be caused by P. syringae pv. syringae.展开更多
To live on the island for a year, the first things I need to prepare are a variety of vegetable seeds, such as millet, celery and spinach. Planting flowers, such as magnolias, osmanthuses (桂花),sun flowers, butterfly...To live on the island for a year, the first things I need to prepare are a variety of vegetable seeds, such as millet, celery and spinach. Planting flowers, such as magnolias, osmanthuses (桂花),sun flowers, butterfly orchids and pomegranate (石榴) flowers, is also a good idea. To feel the germination (发芽) of seeds and blossom of flowers on the island is the most wonderful thing.展开更多
文摘The vehement explosion in two-dimensional (2D) materials has led to one exciting new discoveries after another for the past 15 years. This circumstance resembles a famous movie “The Gold Rush”(1925) expressed the true story about the stream of American people as crowded as the hurricane to join the gold racing in the 19th century. Similarly, the family of 2D materials has gained tremendous interest from broad scientific community in various fields, from fundamental chemistry and physics to materials and device engineering. This special issue includes both tutorial reviews and original research articles, providing general overviews of the recent progresses and bringing about the newest discoveries in this rapidly evolving field.
文摘Remarkable Progress Friendly exchanges between China and Thailand can be traced back to morethan two thousand years ago.With the establishment in 1975 of diplomaticties,a new page opened up in the annuals of modern Sino-Thai relations.Indeed, the past two decades have seen an all- round blossoming of this ages-longfriendship. In his meeting with the visiting Thai Prime Minister
文摘On the afternoon of 21 December, 2006, Uli Schwarz, professor emeritus of the German Max Planck Society (MPG) and founding director of the CAS Shanghai Institute for Advanced Stud-
文摘In this paper, an explicit expression of the blossom by the means of the B-form of B-B polynomial defined on a simplex is given. With its help, new but very short and simple blossom proofs of the most important theorems on B-B polynomials are derived, such as the degree elevation formula, the subdivision and the change of the underlying simplex procedure, the control points convergence property, the Marsden's identity.
文摘In this paper,we introduce a new averaging rule,the nonlinear weighted averaging rule.As an application,this averaging rule is used to replace the midpoint averaging in the de Casteljau evaluation algorithm and with this scheme we can also generate transcendental functions which cannot be generated by the classical de Casteljau algorithm.We also investigate the properties of the curves of the functions generated by blossoming,where the results show that these curves and the classical Bézier curves have some similar properties,including variation diminishing property and endpoint interpolation.However,the curves obtained by blossoming using nonlinear weighted averaging rules induced by certain functions violate some properties like convex hull property.
文摘Chinese Premier Wen Jiabao has just concluded an official visit abroad that took him to three European countries-Finland, Britain and Germany-and the Centra) Asian nation of Tajikistan. Some political observers and scholars have hailed the premier's visit
文摘Cultivated for its richness in nutrients, tomato culture is demanding fertilizer, especially in calcium. Calcium deficiencies and physiological disorders cause serious diseases in tomatoes. Blossom end rot (BER), in susceptible cultivars, may cause severe economic losses. The goal of this study is to determine the effect of three organic calcium sources on the growth and quality of fruit production of tomatoes. Egg, snail and sea shell powders and extracts have been used as biological fertilizers. The experiment was conducted in a block factorial trial with three replications. The trials comprised two factors: calcium sources and calcium source form (powder and extract). The results showed that the growth parameters and yield were improved by the calcium source, whatever the form. Also, BER was lower in plants treated with calcium contrary to the control. However, plants treated with eggshells showed the best growth (mean) and the lowest rate (0.40%) of BER than the snail and sea shell.
文摘Cultivated for its richness in nutrients, tomato culture is demanding fertilizer, especially in calcium. Calcium deficiencies and physiological disorders cause serious diseases in tomatoes. Blossom end rot (BER), in susceptible cultivars, may cause severe economic losses. The goal of this study is to determine the effect of three organic calcium sources on the growth and quality of fruit production of tomatoes. Egg, snail and sea shell powders and extracts have been used as biological fertilizers. The experiment was conducted in a block factorial trial with three replications. The trials comprised two factors: calcium sources and calcium source form (powder and extract). The results showed that the growth parameters and yield were improved by the calcium source, whatever the form. Also, BER was lower in plants treated with calcium contrary to the control. However, plants treated with eggshells showed the best growth (mean) and the lowest rate (0.40%) of BER than the snail and sea shell.
基金the National High Technology Research and Development Program of China (2006AA10A211)National Natural Science Foundation of China (30671397)Hangzhou Agricultural Development Foundation,China (2007-2008)
文摘This study was done to determine the causal organism of the pear blossom and bud blast in China. It was identified by a bacteriological test, electro-microscopic observation, Koch's postulate test, Biolog, fatty acid methyl esters (FAMEs), and a polymerase chain reaction (PCR) test, and compared with the standard reference strains. Six representative strains out of 20 pathogenic bacterial isolates from 16 diseased samples showed characteristics similar to three standard strains of Pseudomonas syringae pv. syringae from Belgium. They were identified as P. syringae pv. syringae with a Biolog similarity of 0.57-0.86 and FAMEs similarity of 0.58-0.81. The bacterium was reisolated from the symptomatic plants and blossoms. Identification as P. syringae pv. syringae was confirmed by using PCR primers and sequence tests, and compared with the above-mentioned results. The data supported the fact that the pear blossom and bud blast in China could be caused by P. syringae pv. syringae.
文摘To live on the island for a year, the first things I need to prepare are a variety of vegetable seeds, such as millet, celery and spinach. Planting flowers, such as magnolias, osmanthuses (桂花),sun flowers, butterfly orchids and pomegranate (石榴) flowers, is also a good idea. To feel the germination (发芽) of seeds and blossom of flowers on the island is the most wonderful thing.