书写范式的转型

???(Qing-xia Lu) 중국어문논역학회 2006 中國語文論譯叢刊 Vol.17 No.-

The special geographical position of Korean Peninsula created the ancient Korean’s special culture linguistic context. The most obvious characteristic, was no more than the culture of Chinese characters spread and permeated in early days. Chinese writing took official writing, occupied the dominant position in Korea’s cultural history. Before <xun shi ping hua>to appear, Chinesecharacters wrote the pronunciation not according with the Korean. Also appeared several kinds in the folk to record the sound symbolic expression writing, until Xun min Zheng yin appeared, just really formed the national literature characters. The Chinesecharacter writing status had not still vacillated. Li Bian’s book carried on Chinese and taught the beginners mainly. Differently with <Lao qi da> and <Piao tong shi> ,this kind of written model as a result of conformed to Easten Confucianist’s writing to retain. This, to announcing that Korean cultural policy and the Confucianist writing model change, had the important help.

Comparative Phylogenetic Relationships and Genetic Structure of the Caterpillar Fungus Ophiocordyceps sinensis and Its Host Insects Inferred from Multiple Gene Sequences

Qing-Mei Quan,Qing-Xia Wang,Xue-Li Zhou,Shan Li,Xiao-Ling Yang,Yun-Guo Zhu,Zhou Cheng 한국미생물학회 2014 The journal of microbiology Vol.52 No.2

Ophiocordyceps sinensis (Ascomycota: Ophiocordycipitaceae)is a native fungal parasite of Hepialidae caterpillars and oneof the most economically important medicinal caterpillarfungi in China. However, little is known about the phylogeneticand evolutionary relationships between O. sinensis andits host insects. In this study, nuclear ITS and β-tubulin sequencesfrom O. sinensis and mitochondrial COI, COII, andCytb sequences from its hosts were analyzed across 33 populationssampled from five regions in China. Phylogenetically,both O. sinensis and its hosts were divided into three geographicallycorrelated clades, and their phylogenies were congruent. Analysis of molecular variance and calculated coefficientsof genetic differentiation revealed significant geneticdivergence among the clades within both O. sinensis (FST=0.878, NST=0.842) and its hosts (FST=0.861, NST=0.816). Estimatedgene flow was very low for O. sinensis (Nm=0.04) andthe host insects (Nm=0.04) among these three clades. Manteltests demonstrated a significant correlation (P<0.01) betweenthe genetic distances for O. sinensis and its hosts, as well as asignificant association (P<0.05) between geographic and geneticdistances in both. The similar phylogenetic relationships,geographic distributions, and genetic structure and differentiationbetween O. sinensis and its hosts imply that they have coevolved.

Evaluation of torsional response of a long-span suspension bridge under railway traffic and typhoons based on SHM data

Xia, Yun-Xia,Ni, Yi-Qing,Zhang, Chi Techno-Press 2014 Structural monitoring and maintenance Vol.1 No.4

Long-span cable-supported bridges are flexible structures vulnerable to unsymmetric loadings such as railway traffic and strong wind. The torsional dynamic response of long-span cable-supported bridges under running trains and/or strong winds may deform the railway track laid on the bridge deck and affect the running safety of trains and the comfort of passengers, and even lead the bridge to collapse. Therefore, it is eager to figure out the torsional dynamic response of long-span cable-supported bridges under running trains and/or strong winds. The Tsing Ma Bridge (TMB) in Hong Kong is a suspension bridge with a main span of 1,377 m, and is currently the world's longest suspension bridge carrying both road and rail traffic. Moreover, this bridge is located in one of the most active typhoon-prone regions in the world. A wind and structural health monitoring system (WASHMS) was installed on the TMB in 1997, and after 17 years of successful operation it is still working well as desired. Making use of one-year monitoring data acquired by the WASHMS, the torsional dynamic responses of the bridge deck under rail traffic and strong winds are analyzed. The monitoring results demonstrate that the differences of vertical displacement at the opposite edges and the corresponding rotations of the bridge deck are less than 60 mm and $0.1^{\circ}$ respectively under weak winds, and less than 300 mm and $0.6^{\circ}$ respectively under typhoons, implying that the torsional dynamic response of the bridge deck under rail traffic and wind loading is not significant due to the rational design.

Dynamic Analysis of Catapult Availability Based on CBM

Xia Guo-Qing,Luan Tian-Tian,Sun Ming-Xiao,Liu Yan-Wen 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.10

The repair of catapult is a complicated engineering. In this paper, the method of Condition Based Maintenance is applied into the repair system based on the catapult maintenance of system analysis. In view of the application of Condition Based Maintenance in the modern aviation equipment, the catapult availability is the final goal. The structure of catapult maintenance system is analyzed. The structure model of system dynamic feedback is established by using system dynamics method. Simulation is based on the "Nimitz" actual data of the Surge operation in 1997. The results prove the effectiveness and rationality of the proposed method. Through the analysis of the simulation evaluation results, the method applying Condition Based Maintenance into catapult repair system can improve catapult availability.

Current Decoupling Control for the Three-level PWM Rectifier with a Low Switching Frequency

Qing-qing YUAN,Kun XIA 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.1

Three-level PWM rectifiers applied in medium voltage applications usually operate at low switching frequency to keep the dynamic losses under permitted level. However, low switching frequency brings a heavy cross-coupling between the current components id and iq with a poor dynamic system performance and a harmonic distortion in the grid-connecting current. To overcome these problems, a mathematical model based on complex variables of the three-level voltage source PWM rectifier is firstly established, and the reasons of above issues resulted from low switching frequency have been analyzed using modern control theory. Then, a novel control strategy suitable for the current decoupling control based on the complex variables for id and iq is designed here. The comparisons between this kind of control strategy and the normal PI method have been carried out. MATLAB and experimental results are given in detail.

Analysis on the influencing factors and dynamic mechanism of service outsourcing

Xia Qing,Zhou Min 인하대학교 정석물류통상연구원 2009 인하대학교 정석물류통상연구원 학술대회 Vol.2009 No.10

Outsourcing is a new business and mode and emerging mainstream way. It can be divided into two types, production outsourcing and service outsourcing according to the content of outsourcing, which is collectively called business outsourcing. And service outsourcing is rapid emergence in global scale with development of information technology in 90’s and become the new direction of service of all countries, which is widely concerned by many scholars. In present research, most of scholars paid their attention on the scale, development trends of service outsourcing, and analyzed the reasons of it from the point of view of cost, income and the competitiveness of enterprises. So, this paper analyzed the influencing factors of service outsourcing from the angle of the external environment and internal mechanism. We selected typical contract states-The United States, and the main contractor countries-China as research objects, made empirical research on the outside and internal factors of service outsourcing on the basis of time-series data by the multiple regression analysis which are econometric approaches and obtained the result of that which influencing factors were significant on the service outsourcing. And then the paper gave deduction to get the dynamic mechanism model of service outsourcing, and further proposed the endogenous mechanism of it, which could provede theoretical basis for the development of service outsourcing of countries in the world.

Automatic Detection and Classification of Rib Fractures on Thoracic CT Using Convolutional Neural Network: Accuracy and Feasibility

Zhou Qing-Qing,Wang Jiashuo,Tang Wen,Hu Zhang-Chun,Xia Zi-Yi,Xue-Song Li,Zhang Rongguo,Yin Xindao,Zhang Bing,Zhang Hong 대한영상의학회 2020 Korean Journal of Radiology Vol.21 No.7

Objective: To evaluate the performance of a convolutional neural network (CNN) model that can automatically detect and classify rib fractures, and output structured reports from computed tomography (CT) images. Materials and Methods: This study included 1079 patients (median age, 55 years; men, 718) from three hospitals, between January 2011 and January 2019, who were divided into a monocentric training set (n = 876; median age, 55 years; men, 582), five multicenter/multiparameter validation sets (n = 173; median age, 59 years; men, 118) with different slice thicknesses and image pixels, and a normal control set (n = 30; median age, 53 years; men, 18). Three classifications (fresh, healing, and old fracture) combined with fracture location (corresponding CT layers) were detected automatically and delivered in a structured report. Precision, recall, and F1-score were selected as metrics to measure the optimum CNN model. Detection/diagnosis time, precision, and sensitivity were employed to compare the diagnostic efficiency of the structured report and that of experienced radiologists. Results: A total of 25054 annotations (fresh fracture, 10089; healing fracture, 10922; old fracture, 4043) were labelled for training (18584) and validation (6470). The detection efficiency was higher for fresh fractures and healing fractures than for old fractures (F1-scores, 0.849, 0.856, 0.770, respectively, p = 0.023 for each), and the robustness of the model was good in the five multicenter/multiparameter validation sets (all mean F1-scores > 0.8 except validation set 5 [512 x 512 pixels; F1-score = 0.757]). The precision of the five radiologists improved from 80.3% to 91.1%, and the sensitivity increased from 62.4% to 86.3% with artificial intelligence-assisted diagnosis. On average, the diagnosis time of the radiologists was reduced by 73.9 seconds. Conclusion: Our CNN model for automatic rib fracture detection could assist radiologists in improving diagnostic efficiency, reducing diagnosis time and radiologists’ workload.

CREATING A "THIRD SPACE" : MAGICAL REALISM IN TONIMORRISON'S EARLY NOVELS

Ma, Qing-xia 부산외국어대학교 외국어연구소 2022 외국어연구 Vol.35 No.-

Toni Morrison’s portrayal for African American’s living conditions and her elaborate arrangements are frequently discussed in African American literature in a way that reconstruct postcolonialist concerns from the persp ective of history in the United States. The postcolonial theorist Homi Bha bha points out a “third space” through which the regeneration of meaning needs cultural positionality and cultural reference to be mobilized in the passageway. This paper, from a new perspective of a “third space,” explor es Morrison’s magical realism as a possibility to investigate the traumatic real of the institutionalized slavery and ideologized racism in a white dom inated society. In Morrison’s early novels, those issues are tactically discu ssed through her magical realism which creates a “third Space.” This pape r, through examining magical realism from the perspective of a “third Spa ce,” attempts to unravel Morrison’s hybridity and complexity, and explore how she visualizes the shadow and speaks the unspeakable. Morrison’s na rratives seem to be magical while they are actually real. In her early novel s, she repeatedly utilizes the magical myth, folklore, and fragmentation to generate the authentic real related to the slavery history as well as the cur rent white dominated society.

Current Decoupling Control for the Three-level PWM Rectifier with a Low Switching Frequency

Yuan, Qing-Qing,Xia, Kun The Korean Institute of Electrical Engineers 2015 Journal of Electrical Engineering & Technology Vol.10 No.1

Three-level PWM rectifiers applied in medium voltage applications usually operate at low switching frequency to keep the dynamic losses under permitted level. However, low switching frequency brings a heavy cross-coupling between the current components $i_d$ and $i_q$ with a poor dynamic system performance and a harmonic distortion in the grid-connecting current. To overcome these problems, a mathematical model based on complex variables of the three-level voltage source PWM rectifier is firstly established, and the reasons of above issues resulted from low switching frequency have been analyzed using modern control theory. Then, a novel control strategy suitable for the current decoupling control based on the complex variables for $i_d$ and $i_q$ is designed here. The comparisons between this kind of control strategy and the normal PI method have been carried out. MATLAB and experimental results are given in detail.

Butyrolactones Derivatives from the Fermentation Products of an Endophytic Fungus Aspergillus versicolor

Yan-Qing Ye,Cong-Fang Xia,Juan-Xia Yang,Yu-Chun Yang,Ying Qin,Xue-Mei Gao,Gang Du,Xuemei Li,Qiu-Fen Hu 대한화학회 2014 Bulletin of the Korean Chemical Society Vol.35 No.10

Two new butyrolactones, asperphenol A (1) and B (2), together with four known butyrolactones (3-6) were isolated from the fermentation products of an endophytic fungus Aspergillus versicolor. Their structures were elucidated by spectroscopic methods including extensive 1D- and 2D-NMR techniques. Compounds 1-6 were also tested for their anti-tobacco mosaic virus (anti-TMV) activities. The results showed that compound 2 exhibited high anti-TMV activity with inhibition rate of 46.7%. The other compounds also exhibited potential anti-TMV activities with inhibition rates in the range of 21.8-28.4%.