http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Crowe, David L.,Cui, Xiao-Mei,Shuler, Charles F. Korean Academy of Oral Biology and the UCLA Dental 1998 International Journal of Oral Biology Vol.23 No.2
Acidic ribosomal proteins interact with multiple translation factors to regulate protein synthesis in prokaryotic and eukaryotic organisms. We have isolated and sequenced the complete cDNA of the mouse acidic ribosomal phosphoprotein P1 (mARP P1). The 495 base pair cDNA encodes a single open reading frame of 114 amino acids. Northern amalysis revealed a messenger RNA of appropriate size expressed in all tissues. Stable transfection of 3T3 cells with a vector containing an antisense mARP P1 construct reduced expression of the mRNA by 90%. Cells expressing the antisense construct did not incorporate radiolabeled methionine as efficiently as 3T3s transfected with vector alone. Cells expressing the antisense construct were also less prolifeeerative in vitro. Anlaysis of the deduced sequence and comparison to P proteins from other organisms revealed homology to the L12eILA protein in yeast. The carboxy termini of these proteins are highly conserved across species. The central alanine rich region of the mouse P1 protein likely evlived through duplications of a conserved sequence and may represent evolutionary modifications of an ancestral gene.
L. Zhang,M.H. Zhao,Y. Xiao,B.H. Ma 국제구조공학회 2011 Structural Engineering and Mechanics, An Int'l Jou Vol.38 No.5
Comprehensive and accurate analysis of a finite foundation beam is a challenging engineering problem and an important subject in foundation design. One of the limitation of the traditional Winkler elastic foundation model is that the model neglects the effect of the interface resistance between the beam and the underneath foundation soil. By taking the beam-soil interface resistance into account, a deformation governing differential equation for a finite beam resting on the Winkler elastic foundation is developed. The coupling effect between vertical and horizontal displacements is also considered in the presented method. Using Galerkin method, semi-analytical solutions for vertical and horizontal displacements, axial force, shear force and bending moment of the beam under symmetric loads are presented. The influences of the interface resistance on the behavior of foundation beam are also investigated.
Taxonomy of fungal complex causing red-skin root of Panax ginseng in China
Xiao H. Lu,Xi M. Zhang,Xiao L. Jiao,Jianjun J. Hao,Xue S. Zhang,Yi Luo,Wei W. Gao 고려인삼학회 2020 Journal of Ginseng Research Vol.44 No.3
Background: Red-skin root of Asian ginseng (Panax ginseng) significantly reduces the quality and limits theproduction of ginseng in China. The disease has long been thought to be a noninfectious physiologicaldisease, except one report that proved itwas an infectious disease. However, the causal agents have not beensuccessfully determined. In the present study, we were to reveal the pathogens that cause red-skin disease. Methods: Ginseng roots with red-skin root symptoms were collected from commercial fields in NortheastChina. Fungi were isolated from the lesion and identified based on morphological characters alongwith multilocus sequence analyses on internal transcription spacer, b-tubulin (tub2), histone H3 (his3),and translation elongation factor 1a (tef-1a). Pathogens were confirmed by inoculating the isolates inginseng roots. Results: A total of 230 isolates were obtained from 209 disease samples. These isolates were classifiedinto 12 species, including Dactylonectria sp., D. hordeicola, Fusarium acuminatum, F. avenaceum, F. solani,F. torulosum, Ilyonectria mors-panacis, I. robusta, Rhexocercosporidium panacis, and three novel speciesI. changbaiensis, I. communis, and I. qitaiheensis. Among them, I. communis, I. robusta, and F. solani had thehighest isolation frequencies, being 36.1%, 20.9%, and 23.9%, respectively. All these species isolated werepathogenic to ginseng roots and caused red-skin root disease under appropriate condition. Conclusion: Fungal complex is the causal agent of red-skin root in P. ginseng.
Multilocus Sequence Typing and Virulence Factors Analysis of Escherichia coli O157 Strains in China
Xiao W. Ji,Ya L. Liao,Ye F. Zhu,Hai G. Wang,Ling Gu,Jiang Gu,Chen Dong,Hong L. Ding,Xu H. Mao,Feng C. Zhu,Quan M. Zou 한국미생물학회 2010 The journal of microbiology Vol.48 No.6
Escherichia coli O157:H7, an important food-borne pathogen, has become a major public health concern worldwide. The aim of this study was to investigate the molecular epidemiologic feature of E. coli O157:H7strains in China. 105 E. coli O157:H7 isolates were collected from various hosts and places over 9 years. A multilocus sequence typing scheme (MLST) was applied for bacteria genotyping and polymerase chain reaction (PCR) was used for virulence factor identification. Seven new MLST sequence types (STs), namely ST836, ST837, ST838, ST839, ST840, ST841, and ST842 were identified, which grouped into two lineages. Phylogenetic analysis suggested that the most two frequent STs in China, ST837 and ST836, may be the derivatives of E. coli O157:H7 Sakai or E. coli O157:H7 EDL933. Geographical diversity and host variety of E. coli O157:H7 were observed in China. In addition, the different distribution of tccp was detected. The data presented herein provide new insights into the molecular epidemiologic feature of E. coli O157:H7, and aid in the investigation of the transmission regularity and evolutionary mechanism of E. coli O157:H7.
Taxonomy of fungal complex causing red-skin root of Panax ginseng in China
Lu, Xiao H.,Zhang, Xi M.,Jiao, Xiao L.,Hao, Jianjun J.,Zhang, Xue S.,Luo, Yi,Gao, Wei W. The Korean Society of Ginseng 2020 Journal of Ginseng Research Vol.44 No.3
Background: Red-skin root of Asian ginseng (Panax ginseng) significantly reduces the quality and limits the production of ginseng in China. The disease has long been thought to be a noninfectious physiological disease, except one report that proved it was an infectious disease. However, the causal agents have not been successfully determined. In the present study, we were to reveal the pathogens that cause red-skin disease. Methods: Ginseng roots with red-skin root symptoms were collected from commercial fields in Northeast China. Fungi were isolated from the lesion and identified based on morphological characters along with multilocus sequence analyses on internal transcription spacer, β-tubulin (tub2), histone H3 (his3), and translation elongation factor 1α (tef-1α). Pathogens were confirmed by inoculating the isolates in ginseng roots. Results: A total of 230 isolates were obtained from 209 disease samples. These isolates were classified into 12 species, including Dactylonectria sp., D. hordeicola, Fusarium acuminatum, F. avenaceum, F. solani, F. torulosum, Ilyonectria mors-panacis, I. robusta, Rhexocercosporidium panacis, and three novel species I. changbaiensis, I. communis, and I. qitaiheensis. Among them, I. communis, I. robusta, and F. solani had the highest isolation frequencies, being 36.1%, 20.9%, and 23.9%, respectively. All these species isolated were pathogenic to ginseng roots and caused red-skin root disease under appropriate condition. Conclusion: Fungal complex is the causal agent of red-skin root in P. ginseng.
Zhang, L.,Zhao, M.H.,Xiao, Y.,Ma, B.H. Techno-Press 2011 Structural Engineering and Mechanics, An Int'l Jou Vol.38 No.5
Comprehensive and accurate analysis of a finite foundation beam is a challenging engineering problem and an important subject in foundation design. One of the limitation of the traditional Winkler elastic foundation model is that the model neglects the effect of the interface resistance between the beam and the underneath foundation soil. By taking the beam-soil interface resistance into account, a deformation governing differential equation for a finite beam resting on the Winkler elastic foundation is developed. The coupling effect between vertical and horizontal displacements is also considered in the presented method. Using Galerkin method, semi-analytical solutions for vertical and horizontal displacements, axial force, shear force and bending moment of the beam under symmetric loads are presented. The influences of the interface resistance on the behavior of foundation beam are also investigated.
Pull-in instability of electrically actuated poly-SiGe graded micro-beams
Jia, Xiao L.,Zhang, Shi M.,Yang, Jie,Kitipornchai, Sritawat Techno-Press 2013 Coupled systems mechanics Vol.2 No.3
This paper investigates the pull-in instability of functionally graded poly-SiGe micro-beams under the combined electrostatic and intermolecular forces and temperature change. The exponential distribution model and Voigt model are used to analyze the functionally graded materials (FGMs). Principle of virtual work is used to derive the nonlinear governing differential equation which is then solved using differential quadrature method (DQM). A parametric study is conducted to show the significant effects of material composition, geometric nonlinearity, temperature change and intermolecular Casimir force.