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Exploring the Effectiveness of Hypermedia Glosses for Second Language Reading
Shufang Wang,Chang-In Lee 아시아영어교육학회 2020 The Journal of Asia TEFL Vol.17 No.4
The aim of the study is to investigate whether hypermedia glosses (i.e., text only, text plus audio, and text plus video clips) promote EFL learners’ reading comprehension and examine learners’ preferences for using hypermedia glossing modes when they are reading a hypermedia text. The participants were 77 intermediate-level EFL learners from a university in China. Data were collected through pre- and post- reading comprehension tests, a questionnaire, and interviews. The reading comprehension findings reveal that all three glossing modes significantly promote learners’ comprehension of the text, but no significant differences were found among these three types. In addition, the questionnaire and interviews data indicate that learners hold positive attitudes towards glosses and hypermedia reading. They preferred text coupled with video glossing mode more than text only and text plus audio glosses. The pedagogical implications were provided.
In Vitro and In Vivo Studies on the Complexes of Vinpocetine with Hydroxypropyl-β-cyclodextrin
Shufang Nie,Xiaowen Fan,Ying Peng,Xingang Yang,Chao Wang,Weisan Pan 대한약학회 2007 Archives of Pharmacal Research Vol.30 No.8
The purpose of this study was to evaluate complexes of vinpocetine (VIN), a poorly water-soluble base type drug, with hydroxypropyl-β-cyclodextrin (HP-β-CD) in aqueous environment and in solid state, with or without citric acid (CA) as an acidifier of the complexation medium. The apparent stability constant (Kc) calculated by phase solubility was 282 M-1 and the complexation in solution was structurally characterized by 1H-NMR which showed VIN was likely to fit into the cyclodextrin cavity with its phenyl ring and ethyl ester bond. Solid complexes of VIN and HP-β-CD were prepared by kneading (KE), co-evaporating (CE) and freeze-drying (FD) methods. Physical mixtures were prepared for comparison. The study in the solid state included the differential scanning calorimetry (DSC), X-ray diffractometry (XRD) and infrared absorption spectroscopy (IR). From these analyses, CE and FD products were found in amorphous state, allowing to the conclusion of strong evidences of inclusion complex formation. However, the dissolution test showed that only VIN/HP-β-CD+CA complexes by CE and FD method could provide satisfying dissolution behavior (rapid, complete and lasting) when compared to that of VIN/HP-β-CD complexes. Interestingly, the addition of CA in inclusion complexes could significantly decrease the amount of HP-β-CD needed to solubilize the same amount of VIN and thereby reducing the formulation bulk. Furthermore, in-vivo study revealed that the bioavailability of VIN after oral administration to rabbits (n=6) was significantly improved by VIN/HP-β-CD+CA inclusion complex.
Shufang Wang,이창인 아시아테플 2019 The Journal of Asia TEFL Vol.16 No.4
Motivation plays an import ant role in learning foreign la nguages and many scholars have conducted research on how to maintain and enhance students’ motivation in the EFL class. But few studies have analyzed whether there are mismatches between what teacher s and learners define as t he important factors to motivat e students. This study aims to rectify this gap in our knowledge by analyzing university students’ and teachers’ perceptions of students’ English learning motivation based on self determination theor y (SDT) and the ‘5Ts’ whic h affect motivation (Teacher, T eaching Methodology, Text, Task and Te s t). In order to have a better understanding of students’ and teachers’ perceptions, two questionnaires were designed. Participants were 190 Chinese university s tudents and 122 English te achers. Results show that teach ers and learners have different perspectives for Task and Teacher. To be specific, teachers gave more weight to the Task factor, whereas students focus more on the Teacher factor, including good char acteristics of their teach er. However, teachers and stude nts agree that Teaching methodology and Text play a vital role in motivating students. They also agree that Test is less important. These findings have pedagogical implications for current and prospe ctive English teachers in China and elsewhere.
Moving Object Detection Using Sparse Approximation and Sparse Coding Migration
( Shufang Li ),( Zhengping Hu ),( Mengyao Zhao ) 한국인터넷정보학회 2020 KSII Transactions on Internet and Information Syst Vol.14 No.5
In order to meet the requirements of background change, illumination variation, moving shadow interference and high accuracy in object detection of moving camera, and strive for real-time and high efficiency, this paper presents an object detection algorithm based on sparse approximation recursion and sparse coding migration in subspace. First, low-rank sparse decomposition is used to reduce the dimension of the data. Combining with dictionary sparse representation, the computational model is established by the recursive formula of sparse approximation with the video sequences taken as subspace sets. And the moving object is calculated by the background difference method, which effectively reduces the computational complexity and running time. According to the idea of sparse coding migration, the above operations are carried out in the down-sampling space to further reduce the requirements of computational complexity and memory storage, and this will be adapt to multi-scale target objects and overcome the impact of large anomaly areas. Finally, experiments are carried out on VDAO datasets containing 59 sets of videos. The experimental results show that the algorithm can detect moving object effectively in the moving camera with uniform speed, not only in terms of low computational complexity but also in terms of low storage requirements, so that our proposed algorithm is suitable for detection systems with high real-time requirements.
( Shufang Wang ),( Hai Huang ) 한국인터넷정보학회 2019 KSII Transactions on Internet and Information Syst Vol.13 No.11
Fully homomorphic encryption allows a third-party to perform arbitrary computation over encrypted data and is especially suitable for secure outsourced computation. This paper investigates secure outsourced computation of multiple matrix multiplication based on fully homomorphic encryption. Our work significantly improves the latest Mishra et al.’s work.We improve Mishra et al.’s matrix encoding method by introducing a column-order matrix encoding method which requires smaller parameter. This enables us to develop a binary multiplication method for multiple matrix multiplication, which multiplies pairwise two adjacent matrices in the tree structure instead of Mishra et al.’s sequential matrix multiplication from left to right. The binary multiplication method results in a logarithmic-depth circuit, thus is much more efficient than the sequential matrix multiplication method with linear-depth circuit. Experimental results show that for the product of ten 32×32 (64×64) square matrices our method takes only several thousand seconds while Mishra et al.’s method will take about tens of thousands of years which is astonishingly impractical. In addition, we further generalize our result from square matrix to non-square matrix. Experimental results show that the binary multiplication method and the classical dynamic programming method have a similar performance for ten non-square matrices multiplication.
Candidate Genes with Ovulation by Differential Display PCR in Small Tail Han Sheep
Liu, Shufang,Li, Hongbin,Song, Xuemei,Wang, Aihua,Wei, Caihong,Du, Lixin Asian Australasian Association of Animal Productio 2006 Animal Bioscience Vol.19 No.9
To find the candidate genes concerned with ovulation rate of sheep, Differential Display Reverse Transcription Polymerase Chain Reaction was employed to find the differently expressed cDNA controlling ovulation in the Small Tail Han sheep of polyembryony and in Tan sheep of single birth. Twenty-four primer pairs of three anchored primers and eight arbitrary primers were assembled to amplify the specialized bands from these sheep. Positive cross tests were applied to optimize the ascertainable PCR conditions in which different special bands can be identified by silver strain in one PCR tube. After eliminating the false positive PCR products by Northern hybridization, 24 differential display bands were acquired from the ovary in the Small Tail Han sheep. These EST bands were sequenced and 18 different ESTs were found in which five ESTs had several copies and 13 ESTs had only one copy. Comparing these ESTs with homologous sequences by BLAST in the GenBank, there were six ESTs with known open reading frame (ORF) and function, three ESTs with known ORF and no function, and 9 ESTs without homologous sequence. These ESTs partly represent several genes such as NOS2, tensin, TCRA, CDKN1A, ESR1 and ACTB which express especially in Small Tail Han sheep.
Liying Dong(Liying Dong),Shufang Liu(Shufang Liu),Jing Li(Jing Li),Didier Tharreau(Didier Tharreau ),Pei Liu(Pei Liu),Dayun Tao(Dayun Tao),Qinzhong Yang(Qinzhong Yang) 한국식물병리학회 2022 Plant Pathology Journal Vol.38 No.6
Rice blast is one of the most destructive diseases of rice worldwide, and the causative agent is the filamentous ascomycete Magnaporthe oryzae. With the successful cloning of more and more avirulence genes from M. oryzae, the direct extraction of M. oryzae genomic DNA from infected rice tissue would be useful alternative for rapid monitoring of changes of avirulence genes without isolation and cultivation of the pathogen. In this study, a fast, low-cost and reliable method for DNA preparation of M. oryzae from a small piece of infected single rice leaf or neck lesion was established. This single step method only required 10 min for DNA preparation and conventional chemical reagents commonly found in the laboratory. The AvrPik and AvrPi9 genes were successfully amplified with the prepared DNA. The expected DNA fragments from 570 bp to 1,139 bp could be amplified even three months after DNA preparation. This method was also suitable for DNA preparation from M. oryzae strains stored on the filter paper. All together these results indicate that the DNA preparation method established in this study is reliable, and could meet the basic needs for polymerase chain reaction-based analysis of M. oryzae.