The Impact of Green Trade Barriers on the Export of Chinese Herbal Medicines

Yu Jingjing 한중경제문화학회 2022 한중경제문화연구 Vol.19 No.-

체면민감성과 과시소비성향이 명품과 위조품의 태도에 미치는 영향 - 한국과 중국의 비교 -

위징징 ( Yu Jingjing ),구혜경 ( Goo Hye Kyoung ) 충북대학교 산업경영연구소 2018 産業과 經營 Vol.31 No.1

한국 및 중국은 매년 명품의 수입비중이 증가하고 있으며, 중국에서는 위조품 생산 및 소비의 비중이 증가하고 있는 실정이다. 이러한 명품과 위조품 소비의 증가에 대한 구체적인 연구가 지속적으로 이루어질 필요가 있다고 보았다. 본 연구에서는 체면민감성, 과시소비성향이 명품과 위조품에 대한 태도에 어떠한 영향을 미치는지를 한국과 중국을 비교분석하였다. 이를 위해 한국과 중국 소비자를 대상으로 설문조사를 실시하였으며, 실증분석결과 체면민감성이 높아질수록 과시소비성향이 높아지는 것으로 나타났다. 또한 과시소비성향은 명품과 위조품의 호의성과 과시성에 영향을 미치는 것으로 나타났다. 구체적으로 한국과 중국을 비교한 결과, 지위표시 추구의 과시소비성향과 명품과시성, 고급브랜드 추구의 과시소비성향과 명품호의성 및 명품과시성과 위조품호의성의 관계에서 한국과 중국의 국적에 따른 조절작용이 있는 것으로 나타났다. The purpose of this study was to examine the effect of social-face sensitivity and conspicuous consumption on attitude of luxury goods and counterfeit. It particularly tested th comparative study of Korea and China consumer. By doing so, this study provides implication regarding effective consumer behavior. For empirical survey, total 403 questionnaire sheet collected. The results of the data analysis are follows : First, factors were different which honor sensitivity and showing-off consumption disposition had a positive effect on the attitude toward deluxe brand and imitation. Second, snobbism was accompanied with preference for imitation and taking pride in imitation. Third, It was not different significantly between Korea and China that honor sensitivity had and effect on showing-off consumption disposition. The indication of social status had an more effect on showing-off deluxe brand consumption in Korea and China. On the other hand, consumption disposition of high class brand had more effect on preference for deluxe in Korea and China.

Combination of Cloud Computing and Internet of Things (IOT) in Medical Monitoring Systems

Yu Liu,Beibei Dong,Benzhen Guo,Jingjing Yang,Wei Peng 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.12

With the fast development of cloud computing and computer science technology, the combination of the IOT and clod computing in the medical-assisted environment is urgently needed. The prior research focus more on individual development of the single technique, quite a less research on the field of medical monitoring and managing service application have been conducted. Therefore, in this paper, we study and analyze the application of cloud computing and the Internet of Things on the field of medical environment. We are trying to make the combination of the two kinds of technology monitoring and management information system in hospital. Remote monitoring cloud platform architecture model (RMCPHI) set up medical information in the first place. Then the RMCPHI architecture was analyzed. Eventually, the last effective PSOSAA algorithm proposed the hospital medical information service cloud system monitoring and management application. Experimental simulation illustrates that the proposed algorithm outperforms the other state-of-the-art algorithms. Further potential research areas are discussed.

Research on Highway Short-term Traffic Simulation Based on Measured Data Fitting

Jingjing Tian,Sengbin Yu,Jiayuan Wang 보안공학연구지원센터 2014 International Journal of Control and Automation Vol.7 No.5

Effects of Nitrogen Sources and C/N Ratios on the Lipid-Producing Potential of Chlorella sp. HQ

( Jingjing Zhan ),( Yu Hong ),( Hongying Hu ) 한국미생물 · 생명공학회 2016 Journal of microbiology and biotechnology Vol.26 No.6

Microalgae are being researched for their potential as attractive biofuel feedstock, particularly for their lipid production. For maximizing biofuel production, it is necessary to explore the effects of environmental factors on algal lipid-producing potential. In this study, the effects of nitrogen (N) sources (NO2-N, NO3-N, urea-N, NH4-N, and N-deficiency) and carbon-tonitrogen ratios (C/N= 0, 1.0, 3.0, and 5.0) on algal lipid-producing potential of Chlorella sp. HQ were investigated. The results showed that for Chlorella growth and lipid accumulation potential, NO2-N was t he b est amongst t he n itrogen sources, a nd N O3-N and u rea-N also contributed to algal growth and lipid accumulation potential, but NH4-N and N-deficiency instead caused inhibitory effects. Moreover, the results indicated that algal lipid-producing potential was related to C/N ratios. With NO2-N treatment and carbon addition (C/N = 1.0, 3.0, and 5.0), total lipid yield was enhanced by 12.96-20.37%, but triacylglycerol (TAG) yields decreased by 25.52-94.31%. As for NO3-N treatment, carbon addition led to a 17.82-57.43%/ 25.86-82.67% reduction of total lipid/TAG yields. When NH4-N was used as the nitrogen source, total lipid/TAG yields were increased by 46.67-113.33%/28.99-74.76% with carbon addition. The total lipid/TAG yields of urea-N treatment varied with C/N ratios. Overall, the highest TAG yield (TAG yield: 38.75 ± 5.21 mg/l; TAG content: 44.16 ± 4.35%) was achieved under NO2-N treatment without carbon addition (C/N = 0), the condition that had merit for biofuel production.

Facile Self-Assembly of Fe3O4 Nanoparticles@WS2 Nanosheets: A Promising Candidate for Supercapacitor Electrode

Yu Dai,Xiao Wu,Dawei Sha,Ming Chen,Han Zou,Jie Ren,Jingjing Wang,Xuehua Yan 대한금속·재료학회 2016 ELECTRONIC MATERIALS LETTERS Vol.12 No.6

Graphene-like dichalcogenides with huge surface area and nanostructuredtransition metal oxides with extraordinarily high theoretical capacities could becomposited as promising electrode candidates for supercapacitors. In this work,monolayer and few-layers WS2 nanosheets were exfoliated by combination ofball-milling and sonication. A facile strategy for the hierarchical self-assembly ofFe3O4 nanoparticles (Fe3O4NPs) on WS2 nanosheets was developed to synthesizeFe3O4NPs@WS2 nanocomposites via hydrothermal method. Fe3O4NPs areuniformly dispersed on the WS2 nanosheets without aggregation. The particlesize of Fe3O4NPs is about 3 nm. The nanocomposite shows strong enhancementsof electrochemical behaviors. This self-assembly synthesis strategy may havegreat prospects for other 0D/2D nanocomposites in supercapacitors and otherenergy devices.

Sustaining the Compact Shape During the Quick Spontaneous Infiltration Process with Al-Ti-B4C-CuO Powder Mixtures

Jingjing Zhang,이정무,Young-Hee Cho,Su-Hyeon Kim,Huashun Yu 대한금속·재료학회 2014 METALS AND MATERIALS International Vol.20 No.5

Aluminum matrix composites with a high volume fraction of reinforcements are fabricated using a quickspontaneous infiltration process through a combustion reaction of an Al-Ti-B4C-CuO powder mixture in moltenaluminum. A cold-compacted powder mixture in a cylindrical shape was used as a preform. The effects of thecomposition of the initial powder mixture on the sustaining of the compact shape were systematically examinedand thereby an optimal composition for fabricating sound aluminum matrix composites was suggested. Thecompact shape was greatly affected by the initial composition of the powder mixture. A sufficiently high relativevolume fraction of the solid particles in the compact is critical for sustaining the compact shape during thecombustion reaction. The volume fraction of Al and Ti powders in the initial mixture affects whether crumblingof the compact occurs during the ignition delay time. This study can be beneficial to utilizing theAl-Ti-B4C system as to fabricate components with any desired shape.

Transmission Performance of OOK and 4-PAM Signals Using Directly Modulated 1.5-μm VCSEL for Optical Access Network

Jingjing Zhou,Changyuan Yu,Hoon Kim IEEE 2015 Journal of lightwave technology Vol.33 No.15

<P>We evaluate the possibility of realizing optical access networks using 1.5-mu m vertical-cavity surface-emitting lasers (VCSELs) in the on-off keying (OOK) and four-level pulse amplitude modulation (4-PAM) formats. In order to maximize the power budget of the networks, we optimize the extinction ratio of the 10.7- and 21.4-Gb/s signals and exploit the electrical equalization at the receiver. The experimental comparison made at 10.7 Gb/s shows that the OOK format vastly outperforms the 4-PAM format in terms of tolerance to chromatic dispersion. For example, we achieve the 80-km transmission of the OOK signal over standard single-mode fiber (SSMF), but the maximum reach is halved when the 4-PAM signal is employed. Nevertheless, the 4-PAM format is still an effective way to double the data rate of the VCSEL links in optical access networks. We successfully transmit the 21.4-Gb/s 4-PAM signal generated by using the 1.5-mu m VCSEL over 18-km long SSMF.</P>

A Novel Image Segmentation Combined Color Recognition Algorithm through Boundary Detection and Deep Neural Network

Yu Liu,Jie Yang,Benzhen Guo,Jingjing Yang,Xiao Zhang 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.2

With the fast development of industry and computer science technology, the image color recognition has been a hot topic. The prior research focus more on sensor and hardware based approaches which are not intelligent or convenient. In this paper, we present a novel image segmentation combined color recognition algorithm through boundary detection and deep neural network. The deep learning algorithm can largely increase the accuracy of classification whereas cut down the processing time consumed, we adopt the deep neural network and support vector machine to extract image features both in RGB and YUV color spaces. Boundary detection in sudden change, by contrast, is more global in nature, such as texture, so need to integrate the whole information of the image. Under the guidance, we modify the current segmentation methods with boundary detection technique to serve as the pre-processing step before classifying colors. Experimental results on synthetic and real images show that the new algorithm is effective and efficient, and is relatively independent of this type of noise. Further analysis is also conducted in the final section.

Thermal Conductivity of Loess: Experimental Studies and Empirical Model

Jingjing Wang,Juntao Deng,Jianguo Zheng,Tiehang Wang,Yongtang Yu 대한토목학회 2024 KSCE Journal of Civil Engineering Vol.28 No.2

Soil thermal conductivity is an important indicator for developing and utilizing geothermal resources. In this study, the impact of underground environmental factors on the thermal conductivity of loess was explored by studying the thermal conductivity of saturated and unsaturated loess under varying water content, dry density, and temperature using the Hot Disk thermal constant analyzer. The results show that the thermal conductivity of unsaturated undisturbed and remolded loess presents different growth trends as the water content increases. When the water content is less than 9%, the thermal conductivity of undisturbed soil increases slowly. The thermal conductivity of unsaturated loess gradually increases with temperature. When the temperature rises above 30oC, the latent heat transfer of steam gradually strengthens, accelerating the increase in thermal conductivity, which is most noticeable at intermediate saturation. However, the thermal conductivity of saturated loess rises slowly as the temperature rises. A weighted geometric average model is proposed in this study to predict the thermal conductivity of loess under temperature conditions, considering the effects of soil water content, dry density, and mineral content. The model accuracy was corroborated by the measured soil thermal conductivity and the data collected from six regions.