중국 오디오 스트리밍 플랫폼의 산업 진화와 발전전략 연구 : ‘히말라야(喜馬拉雅)’ 플랫폼을 중심으로

중메이(Zhong Mei),한창완(Chang-Wan Han) 한국애니메이션학회 2022 애니메이션연구 Vol.18 No.1

스마트폰 등 스마트 기기와 커넥티드 카 등 스마트 디바이스의 보급으로 오디오 스트리밍 서비스가 더욱 다양한 상황에서 활용이 가능해지고 있다. 오디오 스트리밍 플랫폼에서 스마트 스피커, 이어폰 등 하드웨어 제품과 자동차용 오디오 플랫폼을 출시하면서 오디오 스트리밍 산업의 스마트화 발전 추세를 보여주고 있다. 중국 오디오 스트리밍 산업은 기술, 자본, 사용자 및 콘텐츠의 상호작용을 통해 지속적인 발전을 이루고 있는 가운데 오디오 콘텐츠는 일상생활의 다양한 상황에서 활용되고 있다. 또한 각 플랫폼의 성장과 경쟁을 바탕으로 오늘날 오디오 스트리밍 산업의 수익 모델은 점차 차별화를 이루고 있다. 이에 따라 본 연구는 마셜 매클루언(Marshall McLuhan)의 청각 공간과 데이비드 하비(David Harvey)의 공간의 압축 등 측면에서 오디오 스트리밍 산업의 발전 현황과 사용자의 경험 변화를 분석함으로써 이와 같은 변화에 대응하기 위한 오디오 스트리밍 플랫폼의 콘텐츠 생산 모델과 차별화된 수익 모델을 분석하였다. With the spread of smart devices such as smartphones and connected cars, audio streaming services are becoming available in more diverse situations. With the launch of hardware products such as smart speakers and earphones on audio streaming platforms and audio platforms for automobiles, the audio streaming industry is showing a trend of smart development. While the Chinese audio streaming industry is continuously developing through the interaction of technology, capital, users, and content, audio content is being used in various situations in everyday life. In addition, based on the growth and competition of each platform, the revenue model of the audio streaming industry today is gradually differentiating. Accordingly, this study analyzed the development status of the audio streaming industry and changes in user experience in terms of McLuhan’s auditory space and David Harvey’s space compression, and analyzed the differentiated profit model from the content production model of the audio streaming platform to cope with these changes.

『燕行錄』的史科价値(之一)

邱瑞中,崔昌源 韓國外國語大學校 外國學綜合硏究센터 中國硏究所 2004 中國硏究 Vol.34 No.-

A large number of ambassadors of Koryo and Korea left for China from 13th century to the end of 19th century, which are Yuan, Ming and Qing Dynasty in China. Some of them wrote YonHaengRok, which became an important document to study this 700-year history. Foreigners recorded what they saw and heard in China, and some of them were not suprising for Chinese people at that time: some of them were closely guarded as secrets: and some of them were burned down and buried in oblivion because of politics. All of them are the historical documentsthat China needs urgently today. Korea has put out these precious documents in the past 20 years. Therefore it is essential to introduce them to Chinese academic circles. The DongGuk University Publishing House has printed 100 copies, whose content includes the historical events from the end of Song Dynasty to the end of Qing Dynasty in 700 years. This article introduces the historical events from JiaJing to WanLi in Ming Dynasty in 16th century.

A Proteomic Analysis of Leaf Responses to Enhanced Ultraviolet-B Radiation in Two Rice (Oryza sativa L.) Cultivars Differing in UV Sensitivity

Xing-Chun Wu,Chang-Xun Fang,Jin-Yang Chen,Qing-Shui Wang,Ting Chen,Wen-Xiong Lin,Zhong-Liang Huang 한국식물학회 2011 Journal of Plant Biology Vol.54 No.4

To determine the proteomic response to UV irradiation, two cultivars, i.e., Lemont (UV tolerant) and Dular (UV sensitive), were exposed to natural and enhanced ultraviolet-B (UV-B) irradiation for 1, 7, and 14 days, and two-dimensional gel electrophoresis in combination with mass spectrometry (MS) and bioinformatics were used to compare the different proteomic responses in the leaves of the two cultivars. Thirty-nine proteins were up- or downregulated following the UV-B treatments. Among them, 30 increased or decreased more than 1.5-fold in abundance. They were further tested by using matrix-assisted laser desorption/ionization time of flight MS and performed a database search. Twentyfour proteins were thus identified. These identified proteins were mostly upregulated in Lemont, whereas only 14 of them upregulated in Dular. Nine proteins involved in glycometabolism and fatty acid metabolisms, signal transduction, and protein synthesis and folding in Dular were not changed. These results suggest that there was a complex regulative mechanism on the proteomes in rice leaves upon UV-B exposure.

Prediction of Ultimate Bearing Capacity and Structural Optimization of Aluminum Alloy Plate Joints Based on Artificial Neural Network

Chang-jun Zhong,Ruo-qiang Feng,Zhijie Zhang 한국강구조학회 2021 International Journal of Steel Structures Vol.21 No.5

An artifi cial neural network model was established to predict the ultimate bearing capacity of aluminum alloy plate joints under compression-bending state. The input parameters of the network are composed of bolt diameter (R), fl ange plate thickness (T) and connecting plate thickness (L). The output parameter is ultimate bearing capacity. In this paper, fi rstly the fi nite element calculation results are compared with the experimental results to verify the accuracy of fi nite element simulation. Then 216 sets of data were obtained using the fi nite element program ABAQUS, which were used for training, verifi cation and testing of the neural network model. In addition, the infl uence of sample size on the prediction accuracy of neural network is analyzed, and a structural optimization method combining fi nite element calculation and neural network prediction is proposed. The results show that the neural network model is accurate and eff ective in predicting ultimate bearing capacity, and the linear regression correlation coeffi cient is 0.98438. The data sample can be reduced to a certain extent to save the time costs and computing resources; It is reasonable and effi cient to use the method of fi nite element parameter analysis and artifi cial neural network prediction to optimize the structure, which broadens the thinking of structure optimization.

Experimental Study on Stratigraphic Subsidence Induced by Sand Leakage in Tunnel Lining Cracks

Zhong-Chang Wang,Guodong Li 대한토목학회 2020 KSCE Journal of Civil Engineering Vol.24 No.8

In order to study the problem of strata subsidence caused by sand leakage in tunnel lining cracks in sandy soil, a set of sand (water) leakage visualization test system for underground engineering which could change the size of circular leakage opening was designed. The sand flow pattern under different working conditions was obtained. It was shown that the sand inrush process could be divided into four stages: initial stage, induced stage, diffusion stage and stable stage. The influence of the diameter of the leakage opening and the thickness of soil layer on the sand inrush and the sandy soil subsidence was studied. When the diameter of the sand leakage opening was same, the influence range of the subsidence increased with the increase of the thickness of soil layer. When the thickness-to-span ratio reached 21.4, the sand layer only subsided. No sand inrush occurred. When the thickness-to-span ratio continued to increase to 25.7, the sand layer did not subside. When the thickness of the sand layer was same, the diameter of the columnar region in the vertical subsidence zone increased with the increase of the diameter of the sand leakage opening. The subsidence range induced by the circular sand leakage opening was rounded on the top plane, and the quadratic surface was approximated on the section. The subsidence range of the soil was related to the shape failure angle of the collapsed surface. The shape failure angle of the collapsed surface was about 13° larger than the natural angle of repose of the soil. This provided a reference for the prevention and control of stratigraphic subsidence caused by the sand leakage of tunnel lining cracks in sandy soil layers.

EFFECTS OF INJECTION TIMING ON TRANSIENT PERFORMANCE OF A REGULATED TWO-STAGE TURBOCHARGED DIESEL ENGINE WITH TURBINE BYPASS VALVE

Zhong Chang Liu,Xing Yuan,Jing Tian,Yong Qiang Han,Kai Bo Yu,Peng Kun Teng 한국자동차공학회 2018 International journal of automotive technology Vol.19 No.5

The object of this paper is to reduce soot emissions under typical 5s transient conditions of constant speed and increasing torque. And effects of fuel injection timing on combustion and emissions parameters were experimentally and numerically studied in a regulated two-stage turbocharged diesel engine with a turbine bypass valve (TBV). The test results indicated that: the smaller TBV opening could improve deterioration of smoke emissions and BSFC at medium and heavy loads. Afterward, the full-stage injection timing (FSIT) strategies (delaying injection timing during the entire transient process) could reduce soot and NOX emissions simultaneously. However, when TBV opening became larger, smoke emissions and BSFC were deteriorated gradually. Moreover, the sectional-stage injection timing (SSIT) strategies (advancing injection timing from 10 % load to a preset load and delaying injection timing from the preset load to 100 % load) could markedly reduce soot emissions by 75.8 % with TBV opening 20 %; the degradation of fuel consumption could be effectively suppressed. Finally, coupling the SSIT strategies with the TBV control strategies could significantly improve the transient performance.

[논문 or 기술논문 택일] Study of a Sloping-wall-type Wave Absorber placed in Various Sinusoidal Propagate Waves

ZHEN-Zhong Yuan(원진중),Eui-Chul Jung(정의철),Hee-Chang LIM(임희창) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.5

?;?;Since there has been a rapid progress to understand the dynamics of an offshore floating body under an ocean environment, we undertake to generate the ocean waves in a lab-scale wind-wave flume. The study is aiming to observe and optimize the similar ocean environmental condition as input wave and to reduce the wall reflective wave. Several absorption methods are suggested to optimize the propagate wave by measuring the maximum and minimum of the standing wave envelope. There has been no optimized absorption method, as they highly depend on the wave period and the wave length. One of the methods-two fixed wave gauges measuring two wave heights and one wave phase ? is applied in this study. In the present paper various approaches were used to analyze the results using the flume, by position of probes, with absorber and without absorber, different position, condition and angle of the wave absorber, This paper also focuses on the analysis of fundamental equations which describe the separating method of the incident and reflective wave, and finally we confirm that the wave absorber is highly efficient considering all the permutation and combination. From the study it is clear that there is a change in the wave amplitude at the receiving end then the generated end; wave absorber is a strong source to control the energy of the coming wave. With the changing the period of the wave, the reflectance is increasing when the period becomes larger.

정초육서설 평의 ( 鄭焦六書說 平議 )

상종호 ( Zhong Hao Chang ) 한국중국학회 1987 중국학보 Vol.27 No.1

명품브랜드 선호도 유형에 따른 위조브랜드 품질과 구매의도 간의 관계에 대한 연구

손종원 ( Zhong Yuan Sun ),장석주 ( Seog Ju Chang ) 한국품질경영학회 2013 품질경영학회지 Vol.41 No.3

Purpose: As there are more cases of forged brands, change of awareness is urgently required at the gov-ernmental, corporate and consumer levels. Therefore. this study aims to positively analyze the correlation between forged brand quality and purchase irueruions perceived by consumers based on types of preference of luxury brands. Methods: In order to achieve the above purpose. this study derived a model of causal relationships among the forged brand quality, preference of typified Iuxury brands, and purchase intentions. SPSS 20.0 was applied for data processing. Frequency analysis ad descriptive statistical analysis were conducted for basic data and measurement tools were verified through feasibility and reliability analyses. Multiple regression analysis was conducted to verify the hypotheses. Results: Based on the results. only utilitarian quality positively (+) affected non-intrinsic preference while its impact on intrinsic preference was negative (-). On the other hand. hedonic quality was significantly positive (+) but the impact was not significant. Both utilitarian and hedonic qualities had significantly positive (+) impacts on the intentions to purchase forged brands with the impact of hedonic quality relatively higher. Conclusion: These results clarified that the overall consumption of Korean consumers had not entered its maturity, yet. Also. Korean consumers regard forged brands as alternatives to luxury brands mostly because of hedonic quality. As hedonic quality is added. Korean consumers` purchase intentions became higher. Based on these results, this study suggested the measures to be taken for the country to develop into an advanced country in the luxury market which is becoming more global and overcome the barrier of its old trend in imitation at the four levels of manufacturers. distributors. government, and consumers.

High-Power Leaky Waveguide Semiconductor lasers emitting at 1.55 μm

Jing Chang Zhong,Wen Bo Fei,Ying Jie Zhao,Rong Hui Li,Fan Lei Zheng,Chang Ling Yan,Yun Long Deng 한국통신학회 1997 OPTOELECTRONICS & COMMUNICATIONS CONFERENCE Vol.2 No.1