In July 1944,delegates from 44 nations gathered in Bretton Woods,New Hampshire,and established an international monetary system known as the Bretton Woods system.Despite the profound transformations the world economy ...In July 1944,delegates from 44 nations gathered in Bretton Woods,New Hampshire,and established an international monetary system known as the Bretton Woods system.Despite the profound transformations the world economy has undergone in the eight decades since,debates on the Bretton Woods system remain as relevant as ever.展开更多
This thesis,by analyzing the wolf nature,the dog nature and the human nature,and their relations,expounds the author's personal interpretation of the theme of Sherwood Anderson's short story Death in the Woods...This thesis,by analyzing the wolf nature,the dog nature and the human nature,and their relations,expounds the author's personal interpretation of the theme of Sherwood Anderson's short story Death in the Woods.The author maintains that Anderson reveals to readers the ugliness of life and the strange beauty of life,condemns the loss of love and the dehumanization of human life in the modern world and implies Anderson's deep concern on the human alienation,an important theme in the 20th century modern literature.展开更多
Sherwood Anderson is an American famous short story writer.The most enduring work of his is the short story sequence Winesburg,Ohio.He is good at capturing the real sound of everyday speech in his writing and creating...Sherwood Anderson is an American famous short story writer.The most enduring work of his is the short story sequence Winesburg,Ohio.He is good at capturing the real sound of everyday speech in his writing and creating it in new forms and styles.And Death in the Woods is considered as one of his most distinctive stories.It depicts a miserable old woman who feeds others all her life by using symbols to enrich the simple story.This paper intends to reveal the author's deep reflection of American's indifferent and apathetic attitudes in the whole society by means of the symbols of the person,color and dog.展开更多
[Objectives] To analyze the quality of Coptis chinensis grown under woods of Magnolia officinalis Rehd. et Wils.,Platycladus orientalis( Linn.) Franco.,and Cunninghamia lanceolata( Lamb.). [Methods] The content of fiv...[Objectives] To analyze the quality of Coptis chinensis grown under woods of Magnolia officinalis Rehd. et Wils.,Platycladus orientalis( Linn.) Franco.,and Cunninghamia lanceolata( Lamb.). [Methods] The content of five kinds of alkaloids in C. chinensis grown under three different woods was determined by high-performance liquid chromatography( HPLC). Detection conditions: 0. 03 mol/L methanol and potassium dihydrogen phosphate solution( volume ratio of 65∶ 35) as the mobile phase,flow rate of 1. 0 mL/min,detection wavelength of 350 nm,and column temperature of 35℃. [Results] In these three woods,the quality of C. chinensis grown under P. orientalis woods was the highest. [Conclusions] This study is expected to provide certain references for cultivation and planting of C. chinensis under woods.展开更多
The static and energy-dependent nucleus–nucleus potentials are simultaneously used along with the Wong formula for exploration of fusion dynamics of 8^16O＋50^112,116,120Sn reactions. The role of internal structure d...The static and energy-dependent nucleus–nucleus potentials are simultaneously used along with the Wong formula for exploration of fusion dynamics of 8^16O＋50^112,116,120Sn reactions. The role of internal structure degrees of freedom of colliding pairs, such as inelastic surface vibrations, are examined within the context of coupled channel calculations performed using the code CCFULL. Theoretical calculations based on the static Woods–Saxon potential along with the one-dimensional Wong formula fail to address the fusion data of 8^16O＋50^112,116,120Sn reactions.Such discrepancies can be removed if one uses couplings to internal structure degrees of freedom of colliding nuclei.However, the energy-dependent Woods–Saxon potential model（EDWSP model） accurately describes the sub-barrier fusion enhancement of 8^16O＋50^112,116,120Sn reactions. Therefore, in sub-barrier fusion dynamics, energy dependence in the nucleus–nucleus potential governs barrier modification effects in a closely similar way to that of the coupled channel approach.展开更多
The experimental data on elastic and inelastic scattering of 270 MeV 3He particles to several low lying states in 90Zr, 116Sn and 208Pb are analyzed within the double folding model （DFM）. Fermi density distribution ...The experimental data on elastic and inelastic scattering of 270 MeV 3He particles to several low lying states in 90Zr, 116Sn and 208Pb are analyzed within the double folding model （DFM）. Fermi density distribution （FDD） of target nuclei is used to obtain real potentials with different powers. DF results are introduced into a modified DWUCK4 code to calculate tbe elastic and inelastic scattering cross sections. Two cboices of potentials form factors are used; Woods Saxon （WS） and Woods Saxon Squared （WS2） for real potential, while the imaginary part is taken as phenomenological Woods Saxon （PWS） and phenomenological Woods Saxon Squared （PWS2）. This comparison provides information about the similarities and differences of the models used in calculations.展开更多
Analysis, evaluation and statistics of dispersed cuticles, spores and wood pieces in Middle Devouian cutinitic liptobiolith from South China have been made, and the results of the study of various plant remains found ...Analysis, evaluation and statistics of dispersed cuticles, spores and wood pieces in Middle Devouian cutinitic liptobiolith from South China have been made, and the results of the study of various plant remains found in coals can be verified mutually. Meanwhile , the phyteral analysis of coals may contribute to our comprehensive knowledge or fossil floras and be used for the reconstruction of the peatforming plant commuuities.展开更多
Dahurian larch growing in Daxing’an Mountains can be divided into two types according to the wood colour: one is red, the other is white. Based on the national standard of the "Testing methods for physical &...Dahurian larch growing in Daxing’an Mountains can be divided into two types according to the wood colour: one is red, the other is white. Based on the national standard of the "Testing methods for physical &mechanical properties of wood", the parameters of wood colour and physico-mechanical properties of the above two different woods were tested and analyzed.The result showed that the colour rational phenetic parameters, physico-mechanical properties and work abilities of thc two woods were quite different, combincd with the other morphological characteristics, they belong to intraspccific two different types of Dahurian larch. The white wood is superior to the red one as a valuable timber tree. Because the cocfficients of shrinkage, hardness and colour of both are different, they were mixed working in the past, inevitably there have been various defects in working. In order to overcome these defects, we propose that the departments of wood production, salesmen and consumers should use them differently according to their individual character.展开更多
文摘In July 1944,delegates from 44 nations gathered in Bretton Woods,New Hampshire,and established an international monetary system known as the Bretton Woods system.Despite the profound transformations the world economy has undergone in the eight decades since,debates on the Bretton Woods system remain as relevant as ever.
文摘This thesis,by analyzing the wolf nature,the dog nature and the human nature,and their relations,expounds the author's personal interpretation of the theme of Sherwood Anderson's short story Death in the Woods.The author maintains that Anderson reveals to readers the ugliness of life and the strange beauty of life,condemns the loss of love and the dehumanization of human life in the modern world and implies Anderson's deep concern on the human alienation,an important theme in the 20th century modern literature.
文摘Sherwood Anderson is an American famous short story writer.The most enduring work of his is the short story sequence Winesburg,Ohio.He is good at capturing the real sound of everyday speech in his writing and creating it in new forms and styles.And Death in the Woods is considered as one of his most distinctive stories.It depicts a miserable old woman who feeds others all her life by using symbols to enrich the simple story.This paper intends to reveal the author's deep reflection of American's indifferent and apathetic attitudes in the whole society by means of the symbols of the person,color and dog.
文摘[Objectives] To analyze the quality of Coptis chinensis grown under woods of Magnolia officinalis Rehd. et Wils.,Platycladus orientalis( Linn.) Franco.,and Cunninghamia lanceolata( Lamb.). [Methods] The content of five kinds of alkaloids in C. chinensis grown under three different woods was determined by high-performance liquid chromatography( HPLC). Detection conditions: 0. 03 mol/L methanol and potassium dihydrogen phosphate solution( volume ratio of 65∶ 35) as the mobile phase,flow rate of 1. 0 mL/min,detection wavelength of 350 nm,and column temperature of 35℃. [Results] In these three woods,the quality of C. chinensis grown under P. orientalis woods was the highest. [Conclusions] This study is expected to provide certain references for cultivation and planting of C. chinensis under woods.
基金Supported by Dr.D.S.Kothari Post-Doctoral Fellowship Scheme sponsored by University Grants Commission(UGC)New DelhiIndia
文摘The static and energy-dependent nucleus–nucleus potentials are simultaneously used along with the Wong formula for exploration of fusion dynamics of 8^16O＋50^112,116,120Sn reactions. The role of internal structure degrees of freedom of colliding pairs, such as inelastic surface vibrations, are examined within the context of coupled channel calculations performed using the code CCFULL. Theoretical calculations based on the static Woods–Saxon potential along with the one-dimensional Wong formula fail to address the fusion data of 8^16O＋50^112,116,120Sn reactions.Such discrepancies can be removed if one uses couplings to internal structure degrees of freedom of colliding nuclei.However, the energy-dependent Woods–Saxon potential model（EDWSP model） accurately describes the sub-barrier fusion enhancement of 8^16O＋50^112,116,120Sn reactions. Therefore, in sub-barrier fusion dynamics, energy dependence in the nucleus–nucleus potential governs barrier modification effects in a closely similar way to that of the coupled channel approach.
文摘The experimental data on elastic and inelastic scattering of 270 MeV 3He particles to several low lying states in 90Zr, 116Sn and 208Pb are analyzed within the double folding model （DFM）. Fermi density distribution （FDD） of target nuclei is used to obtain real potentials with different powers. DF results are introduced into a modified DWUCK4 code to calculate tbe elastic and inelastic scattering cross sections. Two cboices of potentials form factors are used; Woods Saxon （WS） and Woods Saxon Squared （WS2） for real potential, while the imaginary part is taken as phenomenological Woods Saxon （PWS） and phenomenological Woods Saxon Squared （PWS2）. This comparison provides information about the similarities and differences of the models used in calculations.
文摘Analysis, evaluation and statistics of dispersed cuticles, spores and wood pieces in Middle Devouian cutinitic liptobiolith from South China have been made, and the results of the study of various plant remains found in coals can be verified mutually. Meanwhile , the phyteral analysis of coals may contribute to our comprehensive knowledge or fossil floras and be used for the reconstruction of the peatforming plant commuuities.
文摘Dahurian larch growing in Daxing’an Mountains can be divided into two types according to the wood colour: one is red, the other is white. Based on the national standard of the "Testing methods for physical &mechanical properties of wood", the parameters of wood colour and physico-mechanical properties of the above two different woods were tested and analyzed.The result showed that the colour rational phenetic parameters, physico-mechanical properties and work abilities of thc two woods were quite different, combincd with the other morphological characteristics, they belong to intraspccific two different types of Dahurian larch. The white wood is superior to the red one as a valuable timber tree. Because the cocfficients of shrinkage, hardness and colour of both are different, they were mixed working in the past, inevitably there have been various defects in working. In order to overcome these defects, we propose that the departments of wood production, salesmen and consumers should use them differently according to their individual character.
