Bright solitons managed by feshbach resonance in Bose-Einstein condensates

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	Bright solitons managed by feshbach resonance in Bose-Einstein condensates
	Liang, ZX ; Zhang, ZD ; liu, WM
刊名	MODERN PHYSICS LETTERS A
	2006
卷号	21 期号:5 页码:383
关键词	MATTER WAVE SOLITONS DARK SOLITONS ATTRACTIVE INTERACTIONS GASES SCATTERING DYNAMICS COLLAPSE
ISSN号	0217-7323
通讯作者	Liang, ZX: Chinese Acad Sci, Met Res Inst, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China.
中文摘要	An extended enzymatic hydrolysis of cotton fibers by crude cellulase from Trichoderma pseudokoningii S-38 is described with characterization of both the enzyme changes of activities and cellulose structure. The hydrolysis rates declined drastically during the early stage and then slowly and steadily throughout the whole hydrolysis process the same trend could be seen during the following re-hydrolysis process. Morphological and structural changes to the fibers, such as swelling, frequent surface erosion, and variation in the packing and orientation of microfibrils, were investigated by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Observation of X-ray diffraction and IR spectra suggests that the hydrolysis process results in a gradual increase in the relative intensity of the hydrogen bond network, and a gradual decrease in the apparent crystal size of cellulose. The I-alpha crystal phase was hydrolyzed more easily than was the I-beta crystal phase. Apart from the inactivation of CBHs activity, changes in the packing and arrangement of microfibrils and the structural heterogeneity of cellulose during hydrolysis could be responsible for the reduction in the rate of reaction, especially in its later stages. The results indicate that the enzymatic hydrolysis of cellulose occurs on the outer layer of the fiber surface and that, following this, the process continues in a sub-layer manner. (c) 2005 Wiley Periodicals, Inc.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/34336]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Liang, ZX,Zhang, ZD,liu, WM. Bright solitons managed by feshbach resonance in Bose-Einstein condensates[J]. MODERN PHYSICS LETTERS A,2006,21(5):383.
APA	Liang, ZX,Zhang, ZD,&liu, WM.(2006).Bright solitons managed by feshbach resonance in Bose-Einstein condensates.MODERN PHYSICS LETTERS A,21(5),383.
MLA	Liang, ZX,et al."Bright solitons managed by feshbach resonance in Bose-Einstein condensates".MODERN PHYSICS LETTERS A 21.5(2006):383.