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      • KCI등재

        ปรากฏการณ์พหุนัยของคำว่า “กิน” ในภาษาไทย : การศึกษาตามแนวภาษาศาสตร์ปริชาน

        Lu Xin Hui,박경은 한국태국학회 2019 한국태국학회논총 Vol.25 No.2

        This study aims to analyze the aspects of meaning extensions and conceptualization of the polysemous verb, “KIN (to eat)”, from a cognitive linguistic perspective. In this study, various concepts of cognitive linguistics are applied in the analysis, including prototype theory, image schema, and conceptual metaphors and windowing. The linguistic data used in the study is collected from the Thai National Corpus. The result of the study shows that the prototypical meaning, i.e. the most salient meaning, comes from the bodily experience of consuming food. The act of consumption is comprised of three steps: Step of getting or taking, Step of occupation, and Step of consumption & production of Energy, and each step become the basis of various meaning extensions. This study also analyzes negative implications of the Thai verb, KIN. The negative implications are found to be based on metaphorical concepts, EATING IS EGOISTIC ACTION and EATING IS GETTING OUT OF THE MIDDLE WAY. This study helps to understand the cognitive mechanism of polysemy and grammaticalization by presenting the motivation behind conceptualization of the prototypical meaning of the polysemous verb “KIN.” We hope for this study to contribute in both cognitive linguistics and teaching Thai as a foreign language.

      • KCI등재

        Efficacy and Safety of Radiofrequency Ablation Combined with Transcatheter Arterial Chemoembolization for Hepatocellular Carcinomas Compared with Radiofrequency Ablation Alone: A Time-to-Event Meta-Analysis

        Xin Wang,Yanan Hu,Mudan Ren,Xinlan Lu,Guifang Lu,Shuixiang He 대한영상의학회 2016 Korean Journal of Radiology Vol.17 No.1

        Objective: To compare the efficacy and safety of combined radiofrequency ablation (RFA) and transcatheter arterial chemoembolization (TACE) with RFA alone for hepatocellular carcinomas (HCC). Materials and Methods: Randomized controlled trial (RCT) studies that compared the clinical or oncologic outcomes of combination therapy of TACE and RFA versus RFA for the treatment of HCC were identified through literature searches of electronic databases (Pubmed, Embase, Cochrane Library, China Biology Medicine disc, China National Knowledge Infrastructure, and Google Scholar). Hazard ratios (HRs) or odds ratios (ORs) with their corresponding 95% confidence interval (CI) were combined as the effective value to assess the summary effects. The strength of evidence was rated by the Grading of Recommendations Assessment, Development, and Evaluation system. Results: Six RCTs with 534 patients were eligible for inclusion in this meta-analysis. The meta-analysis showed that the combination of TACE and RFA is associated with a significantly longer overall survival (HR = 0.62, 95% CI: 0.49–0.78, p < 0.001) and recurrence-free survival (HR = 0.55, 95% CI: 0.40–0.76, p < 0.001) in contrast with RFA monotherapy. The seemingly higher incidence of major complications in the combination group compared with RFA group did not reach statistical significance (OR = 1.17, 95% CI: 0.39–3.55, p = 0.78). Conclusion: In patients with HCC, the combination of TACE and RFA is associated with significantly higher overall survival and recurrence-free survival, as compared with RFA monotherapy, without significant difference in major complications.

      • KCI등재

        Expression and function analysis of a rice OsHSP40 gene under salt stress

        Xin Wang,Huan Zhang,Lu‑Yuan Shao,Xin Yan,Hui Peng,Jie‑Xiu Ouyang,Shao‑Bo Li 한국유전학회 2019 Genes & Genomics Vol.41 No.2

        Heat shock proteins (HSPs) play essential roles in both plant growth and abiotic stress tolerance. In rice, OsHSP40 was recently reported to regulate programmed cell death (PCD) of suspension cells under high temperature. However, the expression and functions of OsHSP40 under normal growth or other abiotic stress conditions is still unknown. We reported the expression and function of a rice OsHSP40 gene under salt stress. Homologous proteins of OsHSP40 were collected from the NCBI database and constructed the neighbor-joining (NJ) phylogenetic tree. The expression pattern of OsHSP40 was detected by qRT-PCR under NaCl (150 mM) treatment. Then, identified a rice T-DNA insertion mutant oshsp40. At last, we compared and analyzed the phenotypes of oshsp40 and wild type under salt stress. OsHSP40 was a constitutively expressed small HSP (sHSP) gene and was close related to other plant sHSPs. Moreover, the expression of OsHSP40 was regulated by salt, varying across time points and tissues. Furthermore, the growth of T-DNA insertion mutant of OsHSP40 (designated as oshsp40) was suppressed by NaCl (150 mM) compared with that of the WT at seedling stage. Detailed measurement showed root and shoot length of the oshsp40 seedlings were significantly shorter than those of the WT seedlings under NaCl stress. In addition, the pot experiment results revealed that seedlings of oshsp40 withered more seriously compared with those of WT after NaCl treatment and recovery, and that survival rate and fresh weight of oshsp40 seedlings were significantly reduced. Taken together, these data suggested that OsHSP40 had multiple functions in rice normal growth and abiotic stress tolerance.

      • KCI등재

        Analysis of Repeated Measurements on Iowa Gambling Task Study

        Xin Lu,이동희,최보승,박만식,안형진 한국자료분석학회 2007 Journal of the Korean Data Analysis Society Vol.9 No.6

        To reduce a learning effect or test-retest effect is very important in Iowa Gambling Task(IGT) studies that inspect cognitive components in decision making process since the gambling tasks are repeated over time. To this end, two new tasks, namely K and Q, have been developed and proposed to reduce the learning effect. In this study, we examine the effectiveness of these two tasks on reduction of learning effect based on repeated data collected from 75 healthy subjects. A linear mixed effects model was utilized for the analysis to account for the within-subject correlation. The first order ante dependence variance-covariance structure is selected for the final model after several variance covariance structures are compared based on Akaike information criterion(AIC). The results show that participants performance is similar across the three gambling tasks regardless of learning effect. Therefore, the utilization of the original task A followed by the new tasks K and Q will effectively distinguish the cognitive components from the learning effect in decision making process in gambling task studies.

      • Evaluation and Performance Comparison between JPEG2000 and SVC

        Xin Lu,Xuesong Jin 보안공학연구지원센터 2015 International Journal of Signal Processing, Image Vol.8 No.5

        The scalable extension to the H.264/AVC has been established as a scalable video coding (SVC) standard, and JPEG2000 is a state of the act still image coding standard. The most distinctive difference between SVC and JPEG2000 is, in terms of spatial-frequency transformation, that SVC is based on the Discrete Cosine Transform (DCT) and JPEG2000 is based on Discrete Wavelet Transform (DWT). JPEG2000 outperforms its predecessor-JPEG which adopts DCT by nearly 30% in terms of compression performance. Despite the DWT has been successfully employed in still image coding, the latest video coding standard keeps on ultilising DCT and the relevant techniques as its coding tools. In this paper, we investigate SVC for intra frame coding and JPEG2000 for still image coding, on video sequences with different resolutions and features. From the experimental evaluations, we attempt to gain deeper insight into the application scenarios of these two transform techniques. The experimental results demonstrate that at high bitrates, JPEG2000 outperforms SVC, and it is vice versa. We also note that the PSNR difference between SVC and JPEG2000 decreases with increasing the picture resolution. Therefore, JPEG2000 is more suited for high definition picture compression. The spatial scalability of SVC and JPEG2000 is also investigated in the evaluation, and the results show that SVC gains quite better performance than JPEG2000.

      • KCI등재

        ปรากฏการณ์พหุนัยของคำว่า “กิน” ในภาษาไทย : การศึกษาตามแนวภาษาศาสตร์ปริชาน

        ( Lu Xin Hui ),( Park Kyung Eun ) 한국태국학회 2019 한국태국학회논총 Vol.25 No.2

        This study aims to analyze the aspects of meaning extensions and conceptualization of the polysemous verb, “KIN (to eat)”, from a cognitive linguistic perspective. In this study, various concepts of cognitive linguistics are applied in the analysis, including prototype theory, image schema, and conceptual metaphors and windowing. The linguistic data used in the study is collected from the Thai National Corpus. The result of the study shows that the prototypical meaning, i.e. the most salient meaning, comes from the bodily experience of consuming food. The act of consumption is comprised of three steps: Step of getting or taking, Step of occupation, and Step of consumption & production of Energy, and each step become the basis of various meaning extensions. This study also analyzes negative implications of the Thai verb, KIN. The negative implications are found to be based on metaphorical concepts, EATING IS EGOISTIC ACTION and EATING IS GETTING OUT OF THE MIDDLE WAY. This study helps to understand the cognitive mechanism of polysemy and grammaticalization by presenting the motivation behind conceptualization of the prototypical meaning of the polysemous verb “KIN.” We hope for this study to contribute in both cognitive linguistics and teaching Thai as a foreign language.

      • KCI등재

        Transformer fault acoustic identification model based on acoustic denoising and DBO-SVM

        Lu Ling,Zhang Xin,Ma Hui,Pu Qiuping,Lu Yang,Xu Hongwei 대한전기학회 2024 Journal of Electrical Engineering & Technology Vol.19 No.6

        In order to address the impact of ambient noise on the acquisition of the transformer body acoustic pattern and completely extract the information contained in the transformer acoustic pattern, This study suggests a transformer core loosening identifi cation technique based on the integration of wavelet threshold denoising and VMD with Identifi cation of transformer core loosening using DBO (Dung Beetle Optimization Algorithm)-optimized SVMs (Support Vector Machine) and the diff erence between the kurtosis value and the mixed acoustic signal is used to get the de-noised signal with a high signal-to-noise ratio. After that, the signal is fed into an optimized support vector machine for training in order to produce the core loosening identifi cation model. By means of the no-load tests conducted on a 500 V transformer and the examination of the acoustic signals gathered with varying levels of core looseness, the fi ndings demonstrate that the transformer core looseness identifi - cation model with the denoised MFCC feature parameters and the dung-beetle algorithm optimized support vector machine in this work achieves an accuracy of 96.25%, hence improving the core looseness fault identifi cation rate.

      • KCI등재

        Effects of Maturity and 1-MCP Treatment on Postharvest Quality and Antioxidant Properties of ‘Fuji’ Apples during Long-term Cold Storage

        Xin-gang Lu,Yan-ping Ma,Xing-hua Liu 한국원예학회 2012 Horticulture, Environment, and Biotechnology Vol.53 No.5

        Fuji’ apple fruit harvested 10 days before normal harvest (H1) and at normal harvest (H2) were untreated or treated with 1 ㎕·L-1 1-methylcyclopropene (1-MCP) and stored at 0 for up to 30 weeks. Fruits from H1 were firmer and had higher titratable acidity (TA) but lower soluble solids concentrations than those from H2. 1-MCP treatment delayed loss of firmness and TA in fruit from both harvests during storage. Superficial scald incidence was decreased by 1-MCP treatment, but flesh browning was unaffected. H2 fruit had higher total phenolics, flavonoid, and glutathione content as well as total antioxidant activity than H1 fruit at harvest and throughout storage. 1-MCP treated fruit tended to have higher levels of these constituents than untreated fruit in peel, but not in flesh tissues. These results suggest that fruit harvested at the mature stage have better integral quality with 1-MCP treatment.

      • KCI등재

        Preparation and electrochemical properties of mesoporous Co3O4 crater-like microspheres as supercapacitor electrode materials

        Lu Wang,Xiaoheng Liu,Xin Wang,Xujie Yang,Lude Lu 한국물리학회 2010 Current Applied Physics Vol.10 No.6

        Mesoporous Co3O4 microspheres with unique crater-like morphology were obtained by utilizing the mesoporous silica material MCM-41 as a template. The analysis results of N2 adsorptionedesorption measurement indicate that the product has a large BrunauereEmmetteTeller (BET) surface area of 60 m2 g-1 and a narrow pore size distribution centering around 3.7 nm. Its electrochemical properties were investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS)measurements. The findings reveal that this novel morphology material has a smaller inner resistance of about 0.4 U and a higher onset frequency of 550 Hz. This material can provide a high specific capacitance of 102 F g-1 and a large capacity retention of 74% in 500 continuous cycles test at a sweep rate of 3 mV s-1. More significantly, the mass loading of electroactive species can reach as large as 2 mg cm-2, which is one order of magnitude larger than common amount used.

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