四川各民族歷史與現狀的民族學硏究

李紹明 漢陽大學校 民族學硏究所 1995 民族과文化 Vol.3 No.-

EXPLOSIVE CONSOLIBATED SICp/Al-Li COMPOSITE AND ITS MICROSTRUCTURE

Shao, Shao, Wen-Zhu,An, An, Xi-Yong 한국재료학회 1995 Fabrication and Characterization of Advanced Mater Vol.2 No.4

Blanks of SiCp/Al-Li composite were produced by way of powder explossion consolidation method which has been optimized in parameter thriugh expoeriment. By SEM, it was found that the microstructure of this composite has following characteristics : (1) SiC particles are uniformlu distributed in the composite ; (2) Al-Li powders still remain original dendrite structure ; (3) There is some metalluryical bonding between composite particles ; (4) hine particles deform or milt preferentiallu and along some direction deformation of Al-Li particles ; (5) SiCp/Al-Li composite is composed of two kind of Al-Li pweders with very different size ; (6) press-torsion, pressless sinter and hot is static press treatment will make original dendrite in Al-Li particles disappear, further enlargi metallurgical bonding region and incress the dinsity of composite.

Discovery of New S-RNase Genes and Identification of S-genotype in Japanese Plum (Prunus salicina Lindl.)

Shao Xi Huang,Shao Ling Zhang,Hua Qing Wu,Hong Feng Song,Zhi Jun Shen,Yang Rui Li 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

Research on Automatic Mapping Method of Geologic Column

Shao YanLin,Shao YaXiong,Xu XiaoHong,He ZhenMing,Li GongQuan 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.7

The realization of the digital reservoir can greatly improve the information level of the petroleum corporation in hydrocarbon exploration and development, reduce risk and improve efficiency. Wells are the core object of digital reservoir management. Geologic column of drilling is the main carrier of multi-source information. Automatic mapping method and multi-source information fusion of geologic column have become a research hotspot of digital reservoir construction. This paper describes current situation of the domestic reservoir management and practical problem of geological maps digitizing. The thought and process of geologic column automatic mapping, which are based on spatial information technology, are submitted. The partition of information bar is settled on. The three-tier system architecture of automatic mapping system is established. With the support of XML technology, XSD is used to make the parameter template of geologic column automatic mapping and realize corresponding configuration wizard. UML is used to design the automatic mapping system. The lithological plate and geological symbols is coded to realize automatic mapping of corresponding drawing elements. The drawing methods of logging and petrophysical data are improved and the visualization of curve and numerical stick figure is achieved. The integration method of casting photos, core images and geologic column is submitted. For the secondary development technology of ArcGIS Engine, object-oriented program is adopted to realize automatic mapping of geologic ArcGIS Engine column. This paper provides a new way for the geologic column mapping during the process of digital reservoir construction.

Time-related Mapping of Quantitative Trait Loci Controlling Dry Matter Accumulation and Partitioning in Rice

Shao Bo Li,Zhi Hong Zhang,Shao Qing Li,Yang Sheng Li,You Lin Zhu,Ying Guo Zhu 한국유전학회 2008 Genes & Genomics Vol.30 No.4

Grain yield is a result of dry matter accumulation and partitioning in rice (Oryza sativa L.). To characterize the genetic basis of dynamics of traits representing dry matter accumulation and partitioning as well as their relationships with each other, composite interval mapping of quantitative trait loci (QTL) was conducted based on time-related phenotypic data obtained from a population of 258 recombinant inbred lines (F12), which was derived from a cross between Lemont (japonica var.) and Teqing (indica var.). A total of twenty-three QTL were identified for leaf weight, stem weight and panicle weight at four measuring stages after heading. However, these three dynamic traits were observed to be controlled by different QTL (genes) at different growth stages. An extreme example was that at least three types of QTL (genes) might be involved in the development of panicle weight. Growth duration, which is closely related to dry matter accumulation and partitioning, was also identified to be significantly affected by four QTL. The close correlations among the studied four traits were explained to some extent by six co-located QTL. Nevertheless, it would be of great importance to distinguish the pleiotropic or linked effects of the co-located QTL. In addition, the chromosome regions or QTL identified in this study were compared with those previously reported for the same or related traits with the same RIL population.

Human Papillomavirus Vaccine Awareness, Acceptability, and Decision-Making Factors among Chinese College Students

Wang, Shao-Ming,Zhang, Shao-Kai,Pan, Xiong-Fei,Ren, Ze-Fang,Yang, Chun-Xia,Wang, Zeng-Zhen,Gao, Xiao-Hong,Li, Man,Zheng, Quan-Qing,Ma, Wei,Zhao, Fang-Hui,Qiao, You-Lin,Sivasubramaniam, Priya Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.7

Background: College students are recommended as the target groups for catch-up human papillomavirus (HPV) vaccination. Systematical exploration of awareness, acceptability, and decision-making factors of HPV vaccination among Chinese college students has been limited. Materials and Methods: A multi-center survey was conducted in mainland China between November 2011 and May 2012. College students aged 18-22 years were stratified by their grade, gender, and major for sampling. Socio-demographic and HPV-related information such as knowledge, perceptions, acceptability, and attitudes were collected through a questionnaire. Results: A total of 3,497 undergraduates completed the questionnaire, among which 1,686 were males. The acceptability of the HPV vaccine was high (70.8%). Undergraduates from high-level universities, at lower grade, or with greater prior knowledge of HPV vaccines showed higher acceptability of HPV vaccination ($p_{trend}$ <0.001). Additionally, undergraduates with vaccination experience outside the National Expanded Program on Immunization (OR=1.29; 95%CI: 1.10-1.51) or fear of HPV-related diseases (OR=2.79; 95%CI: 2.28-3.41) were more willing to accept HPV vaccination. General knowledge of HPV vaccine was low among undergraduates, and safety was a major concern (71.05%). The majority of students wished to pay less than 300RMB for HPV vaccine and chose the Chinese Center for Disease Control and Prevention as the most appropriate venue for vaccination. Conclusions: Although most undergraduates demonstrate positive attitudes towards HPV vaccination, challenges pertaining to introduction exist in China. Corresponding proactive education and governmental subsidy to do so are urgently needed by this age-group population. Suggestions and potential strategies indicated may help shape the future HPV vaccination program in China.

Improving Cellulase Production in Trichoderma koningii Through RNA Interference on ace1 Gene Expression

( Wang Shao Wen ),( Miao Xing ),( Gang Liu ),( Shao Wen Yu ),( Juan Wang ),( Sheng Li Tian ) 한국미생물 · 생명공학회 2012 Journal of microbiology and biotechnology Vol.22 No.8

Ribonucleic acid interference (RNAi) inhibits the expression of target genes in a sequence-specific manner, and shows potential for gene knockdown in filamentous fungi, in which the locus-specific gene knockout occurs in low frequency. In this study, the function of the repressor of cellulase expression I (ACEI) was verified in Trichoderma koningii (T. koningii) YC01 through RNAi, and ace1-silenced strains with improved cellulase productivity were obtained. An expression cassette that transcribed the interfering double-stranded RNA (dsRNA) of ace1 was constructed and transformed into T. koningii, and the transformants, in which the expression of ace1 was successfully silenced, were selected. As a result of the ace1 gene silencing, the expression levels of the main cellulase and xylanase genes were elevated, and the enhanced production of total proteins, cellulase, and xylanase was observed in the cultivation. In addition, the downregulation of ace1 resulted in an increasing expression of xyr1, but no clear variation in the expression of cre1, which suggested that ACEI acted as a repressor of the xyr1 transcription, but was not involved in the regulation of the cre1 expression. The results of this work indicate that ace1 is a valid target gene for enhancing enzyme production in T. koningii, and RNAi is an appropriate tool for improving the properties of industrial fungi.

Experimental and numerical analysis of fatigue behaviour for tubular K-joints

Shao, Yong-Bo,Cao, Zhen-Bin Techno-Press 2005 Structural Engineering and Mechanics, An Int'l Jou Vol.19 No.6

In this paper, a full-scale K-joint specimen was tested to failure under cyclic combined axial and in-plane bending loads. In the fatigue test, the crack developments were monitored step by step using the alternating current potential drop (ACPD) technique. Using Paris' law, stress intensity factor, which is a fracture parameter to be frequently used by many designers to predict the integrity and residual life of tubular joints, can be obtained from experimental test results of the crack growth rate. Furthermore, a scheme of automatic mesh generation for a cracked K-joint is introduced, and numerical analysis of stress intensity factor for the K-joint specimen has then been carried out. In the finite element analysis, J-integral method is used to estimate the stress intensity factors along the crack front. The numerical stress intensity factor results have been validated through comparing them with the experimental results. The comparison shows that the proposed numerical model can produce reasonably accurate stress intensity factor values. The effects of different crack shapes on the stress intensity factors have also been investigated, and it has been found that semi-ellipse is suitable and accurate to be adopted in numerical analysis for the stress intensity factor. Therefore, the proposed model in this paper is reliable to be used for estimating the stress intensity factor values of cracked tubular K-joints for design purposes.

Morphology-dependent Optical Properties of One-dimensional Nanostructure-arrayed Silicon

Shao-long Wu,Guo-an Cheng,Rui-ting Zheng,Xiao-ling Wu 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.6

The optical properties of one-dimensional nanostructure-arrayed silicon (1DNSASi), which wasfabricated by the metal assisted electroless chemical etching method under different conditions,were characterized in the wavelength range of 220 - 1000 nm. Whether the optical absorption ofthe 1DNSASi was enhanced relative to that of the polished Si was determined from the detailedmorphology of the 1D nanostructures. For the yellow 1DNSASi prepared at a high etchant concentrationand high temperatures, its optical absorption was relatively nice in the ultraviolet lightregion, while a gradual attenuation was shown in the visible and the near-infrared regions, and theoptical absorption was lower than that of the polished Si at wavelengths above 800 nm. When theeffects of zeroth-order reflectance and zero transmission were combined, the optical absorption ofthe black 1DNSASi prepared at a low etchant concentration and room temperature was very high(> 99%) in the wavelength range of 220 - 1030 nm and displayed a slight decrease at wavelengthsabove 1030 nm. Our results demonstrate that the optical absorption of the black 1DNSASi couldbe further improved by increasing the etching depth and exhibited its measurable maximum valuewhen the etching depth was large enough. These results indicate that the 1DNSASi may be apromising candidate for high-efficiency photovoltaic devices, high-sensitivity sensors and detectors.

Controlled Synthesis of ZnO Nanostructures for Sub-ppm-Level VOC Detection

Shao-Lin Zhang,Hyung-Gi Byun,Jeong-Ok Lim,Jeung-Soo Huh,Wooyoung Lee IEEE 2012 IEEE Sensors Journal Vol.12 No.11

<P>Various ZnO nanostructures, including nanoparticles, nanorods, nanotubes, and nanorings, were synthesized via a controlled synthesis by a facile sonochemical method combined with a chemical etching process. The morphology and structure of the fabricated nanomaterials were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The sensing properties of different ZnO nanostructures toward volatile organic compounds gases at sub-ppm levels were investigated. The differences in the sensing responses of various nanostructures were compared, and reasonable mechanisms are proposed here.</P>