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Peng WU 한국외국어대학교 통번역연구소 2019 한국외국어대학교 통번역연구소 학술대회 Vol.2019 No.07
Informed by the importance of technological knowledge for conducting effective technology-enhanced instruction, this study investigates translation teachers’ technological, pedagogical, and content knowledge (TPACK) to understand seven TPACK components and their synthesized pattern. A survey was conducted to assess translation teachers’ performance among 98 Chinese teachers in MTI program. A regression analysis was made to reveal the interrelationship among the seven TPACK components. The Survey shows the translation teachers’ technological knowledge is the highest component among all the seven TPACK components. Regression analysis reveals that the three core components of technological, pedagogical and content knowledge mutually influence TPACK in different synthesized patterns. The results will inform translation teachers of the effective way to enhance their instructional strategies with IT devices and platform.
A Product Can not Survive in Today’s Market without a Successful Brand
Peng Wu 동아대학교 동아시아연구원 2011 동아시아 : 비교와 전망 Vol.10 No.3
This paper raises the critical questions on the impact of the importance of brand for products and companies in market. Firstly, the brands add values to products would be discussed at the beginning, including the value of brand image, the value of brand personality and the influence of added values. From this part, we could get the general understanding of the significant on the brand. Since the relationship between the brands and products and consumers is extremely tight. Secondly, the competitive advantages of a successful brand would be analyzed as follow. The consumers’ preference and loyalty make the brand boast completive advantages including low cost, differentiation, and easily reaching a new market to introduce products. Finally, although the brand has its advantages, we still should pay more attention to the limitation of brand. Anyway, branding has already become an essential marketing strategy for companies today.
An Improved Two-Dimensional Run-Length Encoding Scheme and Its Application
Peng Wu,Shunping Zhou,Bo wan,Fang Fang,Sha Zhou 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.4
In this paper, we propose an improved two-dimensional run-length encoding (I2DRLE) scheme for representing grayscale images. Conventional 2D run-length encoding scheme is simple and effective that has been widely used, while it is not suitable to represent non-block images. Our approach is a new data compression algorithm inspired by 2D run-length encoding and quadtree, which apply some predefined patterns to represent various data and can sharply reduce the number of blocks in image representation. Experimental results show that this method is an effective lossless grayscale image encoding scheme.
Peng Wu,Qian-qian Guo,Zhi-wei Qin 한국원예학회 2016 Horticulture, Environment, and Biotechnology Vol.57 No.5
Pesticide residue often remains on the surface of cucumber fruits after application, but the metabolic pathway and genes involved in pesticide metabolism remain unclear. In this study, we employed whole transcriptional analysisusing a high-throughput tag-sequencing technique (Tag-seq) to identify the genes involved in cucumber’s metabolism of the fungicide propamocarb. Transcript abundance was investigated by analyzing gene expression profiles. Differential expression analysis revealed the up-regulation of 546 genes, and the down-regulation of 185 genes. Using the Kyoto Encyclopedia of Genes and Genomes (KEGG) database, genes identified from whole transcriptome analysis as related to the phenylpropanoid pathway were most significantly differentially expressed. Fourteen of these genes were up-regulated after treatment with propamocarb. Further analysis revealed that these genes encoded six enzymes: phenylalanine ammonia-lyase (PAL), cytochrome P450 (CYP), AMP-dependent CoA ligase (AMP), anthranilate Nbenzoyltransferase protein (ANP), UDP-glucosyl transferase family protein (UDP), and peroxidase (POD). Compared to the control, the activities of PAL and POD were significantly increased (p < 0.01) after treatment with propamocarb, as was lignin synthesis such that acetylbromide-extractable lignins were increased by 41.1% (p < 0.05). Based on these results, we propose that propamocarb up-regulates the expression of genes involved in the phenylpropanoid pathway, leading to induction of lignin synthesis, which in turn triggers defense mechanisms in cucumber.
A review of preparation techniques of porous ceramic membranes
Peng Wu,Yuezhong Xu,Zhenxing Huang,Jiachao Zhang 한양대학교 세라믹연구소 2015 Journal of Ceramic Processing Research Vol.16 No.1
Porous ceramic membranes with their various advantages, such as better thermal, chemical and mechanical resistance, controllable micro-structure and little pollution to our environment, have been attracting much attention in the scientific community recently. With the development of technology, lowering the cost of ceramic membranes and prepare membranes with high permeability, high selectivity is becoming more important. The advances in the past ten years in techniques are reviewed. Finally, prospect of ceramic membranes was predicted.
Adsorption and photodegradation of methylene blue on TiO2-halloysite adsorbents
Yuanyuan Du,Pengwu Zheng 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.11
TiO2-halloysite (TiO2-HNT) composites were fabricated by depositing anatase TiO2 on the halloysite (HNT)surfaces with calcination treatment at 100, 200, 300 and 500 oC. The obtained composites were characterized by trans-mission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and X-Ray diffraction (XRD). HNT was attached with TiO2 particles or clusters in sizes of 10-30 nm. With the increasing of calcination temperature,the crystalline of anatase became more perfect, but the structure of HNT could be destroyed at 500 oC. The adsorptionand photodegradation of methylene blue (MB) by TiO2-HNTs were investigated. The kinetic adsorption fit the pseudosecond-order, and the isotherm data followed the Langmuir model. The maximum adsorption capacities of MB werein the range of 38.57 to 54.29 mg/g. TiO2-HNTs exhibited an efficient photocatalytic activity in the decomposition ofMB. For TiO2-HNT calcined at 300 oC, 81.6% MB were degraded after 4 h treatment of UV irradiation.
Synthesis of rectorite/Fe3O4-CTAB composite for the removal of nitrate and phosphate from water
Fei Wang,Dan Liu,Pengwu Zheng,Xiaofei Ma 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.41 No.-
The rectorite/Fe3O4-CTAB composite (REC/Fe3O4-CTAB) was fabricated by introducing cetyl trimethylammonium bromide (CTAB) and Fe3O4 onto the layers of raw rectorite (REC). The layers of rectorite wereintercalated or exfoliated, and CTAB enhanced the electrostatic attraction by quaternary ammoniumcations towards nitrate and phosphate anions. The order of Fe3O4 and CTAB introduction had great effecton the adsorption. When Fe3O4 was loaded before CTAB on REC, the obtained composites exhibitedbetter adsorption. Themaximum adsorption capacities could reach 182.1 mg/g for NO3and 174.5 mg/gfor PO43 . Besides, REC/Fe3O4-CTAB composite could be easily regenerated with NaOH solution.
Jing Yang,Zhong-Fang Liu,Ji-Qiao Fan,Yu-PengWu,Rui-Yan Ma,Ren-Jun Fan 한국응용곤충학회 2016 Journal of Asia-Pacific Entomology Vol.19 No.4
Grapholitamolesta, commonly known as the oriental fruit moth, is one of the most destructive fruit pests both in China and in other regions of the world. We examined the genetic diversity and population structures of G. molesta populations from 11 locations in a major pome fruit production region (Shanxi province) in North China using seven microsatellite markers and sequence variations in two mitochondrial genes. We found that G.molesta in the studied region exhibited high levels of genetic diversity. Among 271 individual insects examined using microsatellite markers, mean number of alleles ranged from 5.86 to 9.00 with average 8.01. Population structure analysis revealed that populations from the eleven sampling sites formed two clusters without apparent distance isolation. Cluster 1 consisted of eight populations distributed in five regions of the sampling sites, whereas Cluster 2 consisted of three populations distributed in two distant locations of the sampling sites. Genetic exchange analysis revealed that about half of the haplotypes were shared among over 90% individual insects from different regions. Our results indicated that the population structure and genetic exchange of G. molesta in the studied region might have been affected by limited dispersal ability of the insect, environmental condition, colonization history and human-mediated dispersal. These findings should provide useful information for the implementation of area-wide pest management and for further characterization of genetic variation and population structure of this economically important pest.