This study focuses on the thermophysical characterizations of composite materials made from polypropylene reinforced with residues and fibers from Borassus wood from Chad. These properties are experimentally determine...This study focuses on the thermophysical characterizations of composite materials made from polypropylene reinforced with residues and fibers from Borassus wood from Chad. These properties are experimentally determined at different temperatures using the hot wire method of the “FP2C” machine, where the hot wire probe is inserted between two specimens. The values of the thermal conductivity in powdered Borassus wood range from 0.170 W/mK to 0.182 W/mK for female wood (FNTF) and from 0.169 W/mK to 0.173 W/mK for male wood. For the female and male fibers, the thermal conductivity values range from 0.137 W/mK to 0.157 W/mK for the female and from 0.138 W/mK to 0.168 W/mK for the male. The thermal effusivity of the residues and fibers of Borassus wood varies from: 509.6 Ws1/2/m2K to 543 Ws1/2/m2K for the powder of female wood and from 524.6 Ws1/2/m2K to 547 Ws1/2/m2K for the powder of male wood. For the fibers of Borassus wood, the values range from 410.6 Ws1/2/m2K to 523.6 Ws1/2/m2K for the female wood fibers and from 420.3 Ws1/2/m2K to 480.3 Ws1/2/m2K for the male wood fibers. These results are important for the applications of Borassus wood residues and fibers in construction works regarding the thermal insulation of habitats.展开更多
We have found through calculations that the differences between the closest supposed prime numbers other than 2 and 3 defined in the articles are: 2;4: and 6. For those whose difference is equal to 6, we showed their ...We have found through calculations that the differences between the closest supposed prime numbers other than 2 and 3 defined in the articles are: 2;4: and 6. For those whose difference is equal to 6, we showed their origin then we classified them into two categories according to their classes, we showed in which context two prime numbers which differ from 6 are called sexy and in what context they are said real sexy prime. For those whose difference is equal to 4, we showed their origin then we showed that two prime numbers which differ from 4, that is to say two cousin prime numbers, are successive. We made an observation on the supposed prime numbers then we established two pairs of equations from this observation and deduced the origin of the Mersenne number and that of the Fermat number.展开更多
[Objective] Study on antibacterial activity and stability of the ethanol extracts from Allium mongolicum Regel.[Method] Taking Allium mongolicum Regel.(AMR)as experimental material,the antibacterial and stability test...[Objective] Study on antibacterial activity and stability of the ethanol extracts from Allium mongolicum Regel.[Method] Taking Allium mongolicum Regel.(AMR)as experimental material,the antibacterial and stability test,antibacterial capacity and antibacterial activity substance stability of extracts were studied.[Result] Size order of antibacterial effect of extracts on these 5 strains tended to be:Saccharomyces cerevisiae > Penicillium sp.> Aspergillusniger> Staphylococcusaureus> Escherichia coli;under neutral or slight alkaline conditions,optimum antibacterial effect presented best;and UV light irradiation basically had no influence on tested strains.[Conclusion] Antibacterial effect of ethanol extract shows great difference among these strains,and antibacterial activity substance is of good heat and UV light stability.展开更多
通过对由医疗成像设备获取的二维灰度图像进行形状重建,得到的三维立体原型能帮助医学诊断人员确诊病情。介绍了Shape from Shading的实现原理和扫描电镜成像系统的简单构成,提出了一种基于线性逼近的用于解决SEM反射映射函数的实现方法...通过对由医疗成像设备获取的二维灰度图像进行形状重建,得到的三维立体原型能帮助医学诊断人员确诊病情。介绍了Shape from Shading的实现原理和扫描电镜成像系统的简单构成,提出了一种基于线性逼近的用于解决SEM反射映射函数的实现方法,并将之应用于红血细胞的三维图像重构,得到的细胞图形非常接近其真实形状。展开更多
以构式理论为基础"from A to B"的其结构变化、句法功能、表义类型以及范围特征的考察发现:"from A to B"是英语中一种表达起讫范围的习语性构式,主要表示空间范围,其认知机制是"部分-整体"的转喻。同时...以构式理论为基础"from A to B"的其结构变化、句法功能、表义类型以及范围特征的考察发现:"from A to B"是英语中一种表达起讫范围的习语性构式,主要表示空间范围,其认知机制是"部分-整体"的转喻。同时,在语言使用中,"from A to B"也常表示时间、数量、事物和事件等范围,这些范围类型都来自于其空间概念的隐喻投射。展开更多
语义构建离不开认知识解因素。die of和die from可以与同样的表达式搭配,即die of X和die from X。就规约意义而言,die of X通常表达客观的、直接的原因,而die from X通常表达客观的、间接的原因。但在die of X和die from X语义构建过程...语义构建离不开认知识解因素。die of和die from可以与同样的表达式搭配,即die of X和die from X。就规约意义而言,die of X通常表达客观的、直接的原因,而die from X通常表达客观的、间接的原因。但在die of X和die from X语义构建过程中,通过认知识解,客观的、直接的原因会被识解为主观的、间接原因,客观的、间接的原因会被构建为主观的、直接的原因。展开更多
This article intends to analyze the protagnist the underground man in Notes from Underground from a new angle-existentialism.Through the analysis it displays the actual situation of the individual existence in modern ...This article intends to analyze the protagnist the underground man in Notes from Underground from a new angle-existentialism.Through the analysis it displays the actual situation of the individual existence in modern society and the tension between the individual existence and the social existence.展开更多
作为现代主义文学先驱的艾米丽·狄金森,一生传世的作品有一千七百多首。她的大量作品是歌颂自然之美的。其中一首动人的诗作:"A Bird Came down from the Walk"体现了她深谙自然界蕴含的灵动之美。本文以朱光潜的文艺心...作为现代主义文学先驱的艾米丽·狄金森,一生传世的作品有一千七百多首。她的大量作品是歌颂自然之美的。其中一首动人的诗作:"A Bird Came down from the Walk"体现了她深谙自然界蕴含的灵动之美。本文以朱光潜的文艺心理学中的审美距离理论为依据。通过两个角度分析了这首诗作:一是审美者与审美对象要保持一定的心理距离。二是审美者与审美对象要达到物我同一的境界。结论:在文学作品创作,尤其是诗歌创作中,若即若离是创造美感的最佳距离。展开更多
文摘This study focuses on the thermophysical characterizations of composite materials made from polypropylene reinforced with residues and fibers from Borassus wood from Chad. These properties are experimentally determined at different temperatures using the hot wire method of the “FP2C” machine, where the hot wire probe is inserted between two specimens. The values of the thermal conductivity in powdered Borassus wood range from 0.170 W/mK to 0.182 W/mK for female wood (FNTF) and from 0.169 W/mK to 0.173 W/mK for male wood. For the female and male fibers, the thermal conductivity values range from 0.137 W/mK to 0.157 W/mK for the female and from 0.138 W/mK to 0.168 W/mK for the male. The thermal effusivity of the residues and fibers of Borassus wood varies from: 509.6 Ws1/2/m2K to 543 Ws1/2/m2K for the powder of female wood and from 524.6 Ws1/2/m2K to 547 Ws1/2/m2K for the powder of male wood. For the fibers of Borassus wood, the values range from 410.6 Ws1/2/m2K to 523.6 Ws1/2/m2K for the female wood fibers and from 420.3 Ws1/2/m2K to 480.3 Ws1/2/m2K for the male wood fibers. These results are important for the applications of Borassus wood residues and fibers in construction works regarding the thermal insulation of habitats.
文摘We have found through calculations that the differences between the closest supposed prime numbers other than 2 and 3 defined in the articles are: 2;4: and 6. For those whose difference is equal to 6, we showed their origin then we classified them into two categories according to their classes, we showed in which context two prime numbers which differ from 6 are called sexy and in what context they are said real sexy prime. For those whose difference is equal to 4, we showed their origin then we showed that two prime numbers which differ from 4, that is to say two cousin prime numbers, are successive. We made an observation on the supposed prime numbers then we established two pairs of equations from this observation and deduced the origin of the Mersenne number and that of the Fermat number.
文摘[Objective] Study on antibacterial activity and stability of the ethanol extracts from Allium mongolicum Regel.[Method] Taking Allium mongolicum Regel.(AMR)as experimental material,the antibacterial and stability test,antibacterial capacity and antibacterial activity substance stability of extracts were studied.[Result] Size order of antibacterial effect of extracts on these 5 strains tended to be:Saccharomyces cerevisiae > Penicillium sp.> Aspergillusniger> Staphylococcusaureus> Escherichia coli;under neutral or slight alkaline conditions,optimum antibacterial effect presented best;and UV light irradiation basically had no influence on tested strains.[Conclusion] Antibacterial effect of ethanol extract shows great difference among these strains,and antibacterial activity substance is of good heat and UV light stability.
文摘通过对由医疗成像设备获取的二维灰度图像进行形状重建,得到的三维立体原型能帮助医学诊断人员确诊病情。介绍了Shape from Shading的实现原理和扫描电镜成像系统的简单构成,提出了一种基于线性逼近的用于解决SEM反射映射函数的实现方法,并将之应用于红血细胞的三维图像重构,得到的细胞图形非常接近其真实形状。
文摘以构式理论为基础"from A to B"的其结构变化、句法功能、表义类型以及范围特征的考察发现:"from A to B"是英语中一种表达起讫范围的习语性构式,主要表示空间范围,其认知机制是"部分-整体"的转喻。同时,在语言使用中,"from A to B"也常表示时间、数量、事物和事件等范围,这些范围类型都来自于其空间概念的隐喻投射。
文摘语义构建离不开认知识解因素。die of和die from可以与同样的表达式搭配,即die of X和die from X。就规约意义而言,die of X通常表达客观的、直接的原因,而die from X通常表达客观的、间接的原因。但在die of X和die from X语义构建过程中,通过认知识解,客观的、直接的原因会被识解为主观的、间接原因,客观的、间接的原因会被构建为主观的、直接的原因。
文摘This article intends to analyze the protagnist the underground man in Notes from Underground from a new angle-existentialism.Through the analysis it displays the actual situation of the individual existence in modern society and the tension between the individual existence and the social existence.
文摘作为现代主义文学先驱的艾米丽·狄金森,一生传世的作品有一千七百多首。她的大量作品是歌颂自然之美的。其中一首动人的诗作:"A Bird Came down from the Walk"体现了她深谙自然界蕴含的灵动之美。本文以朱光潜的文艺心理学中的审美距离理论为依据。通过两个角度分析了这首诗作:一是审美者与审美对象要保持一定的心理距离。二是审美者与审美对象要达到物我同一的境界。结论:在文学作品创作,尤其是诗歌创作中,若即若离是创造美感的最佳距离。
