The Design and Communication Strategy of Virtual Idols “Luo Tianyi(洛天依)”

Guangtao Song,Albert Young Choi 국제문화기술진흥원 2023 International Journal of Advanced Culture Technolo Vol.11 No.1

The digital age start in earnest with the widespread use of the Internet. As a digital product, virtual idols bring new value to the design and dissemination of commercial brand images. "Luo Tianyi" is the world's first avatar and VOCALOID voice bank of Chinese. It has a large number of fans in China and is widely used in brand promotion. Therefore, "Luo Tianyi" is taken as the research object. Initially, we investigated the virtual idols through books, literature on the internet and other materials. Then we discussed semiotics and theories related to culture code brand design methodology (CCBD). After that, putting the above theories into practice, combined with brand design cases, we analyzed the strategy of virtual idols in brand promotion and dissemination, at last, we have the conclusion as followed. The results show that the virtual idols, visual symbol of "Luo Tianyi" can express the Index and Symbol corresponding to the brand information according to the characteristics of the brand. As an image of cultural code, "Luo Tianyi" can present three visual images at the same time, which are contemporary, traditional and future . In addition, these three visual images are presented in a strong and weak combination, which has a positive impact on the visual communication of the brand.

Combination of supercritical fluid elution and resin adsorption for removal of procymidone from ginseng extracts

Guangtao Li,Liwei Sun,Shaokun Tang 한국화학공학회 2018 Korean Journal of Chemical Engineering Vol.35 No.4

We propose a new method of resin adsorption (RA) coupled with supercritical fluid elution (SFE) for removal of pesticide residue and recovery of ginsenosides from ginseng extracts. D-101-1 resin was selected as the proper adsorption resin, acetone-n-hexane (4 : 6, v : v) served as the modifier with the flow rate of 1.5mL/min during supercritical CO2 elution of procymidone at 25MPa, 55 oC for 2 h, and absolute ethanol as the modifier at a flow rate of 1mL/min for supercritical CO2 elution of ginsenosides at 20MPa, 60 oC and 1 h. The results showed that the content of procymidone in the final products was only 0.0089mg/kg. Meanwhile, the recovery rate of ginsenosides reached up to 92.5%. RA-SFE procedure provides an efficient approach to remove pesticide residue traces with little loss of active ingredients. The used resin can be recycled without any additional regeneration.

Light scattering enhanced photoanodes for dye-sensitized solar cells prepared by carbon spheres/TiO_2 nanoparticle composites

Guangtao Yang,Jing Zhang,Peiqing Wang,Qiang Sun,Jun Zheng,Yuejin Zhu 한국물리학회 2011 Current Applied Physics Vol.11 No.3

Incorporating scattering centers in the nanocrystalline photoanode or additional scattering layers on the nanocrystalline photoanode is an effective way to enhance the light harvest efficiency (LHE) of the photoanode and the performance of dye-sensitized solar cells (DSSCs). In this work, mesoporous photoanodes were fabricated based on the composites of anatase TiO_2 nanoparticles and carbon spheres. The holes were left after calcination thus serving as the light scattering centers in the photoanode. The size and the amounts of the holes were adjusted by changing the size (250, 500 and 700 nm) and concentration (5, 10, 15 and 20 wt% of the TiO_2 nanocrystallines) of the carbon spheres in the slurry. The light scattering ability and the dye adsorption of the photoanodes with holes of varied size and contents were investigated. The holes left by calcinating the carbon spheres increased the light scattering of the photoanode. However, the increased light scattering ability offset the dye adsorption ability of the photoanode by high amounts of carbon spheres modification. The performances of the DSSCs are investigated under the simulated sunlight and the incident light (400―780 nm). The DSSC with photoanode made from the slurry with 500 nm and 15 wt% carbon spheres exhibited the opitimized performance (Jsc = 14.8 mA cm^-2, Voc = 0.657 V, FF = 0.703 and η = 7.2%), much better than the DSSCs with photoanode made by the pure TiO_2 nanocrystalline (Jsc = 11.7 mA cm^-2, Voc = 0.645V, FF = 0.699 and η = 5.55%) and other photoanodes, indicating it best balanced the controversy of the enhanced light scattering ability and the decreased dye adsorption. The incident-photo-to-electric conversion efficiency test indicated the highest LHE of the 500 nm and 15 wt% carbon spheres modified photoanode.

Two-Level Biomimetic Design Enabled Self-Adaptive Stress Dispersion for Super-Foldable Composite Electrodes

Guangtao Zan,박철민 한국고분자학회 2023 한국고분자학회 학술대회 연구논문 초록집 Vol.48 No.1

The Comprehensive Recognition Method of Critical Lines Based on the Principal Component Analysis

Hao Guangtao,Lin Zhenheng,Wu Xuanyi,Chen Xuejun 대한전기학회 2023 Journal of Electrical Engineering & Technology Vol.18 No.5

Accurate identification of a few key lines in power system is of great significance to prevent blackout. Traditional key lines are mainly identified by single index such as power grid structure, line load rate and active power of line, which is one-sided. Therefore, in the wide area measurement environment, a multi-dimensional comprehensive identification method of key lines based on principal component analysis is proposed. Firstly, from the aspect of transmission breadth and depth, the utilization index of line is proposed. Secondly, the grid structure, line load rate and line active power index are proposed. Thirdly, based on principal component analysis, a comprehensive identification method of the above four indicators is proposed. Finally, taking the actual power grid as an example, the accuracy of this method is verified by comparing with the traditional method.

Epidemiology and resistance features of Acinetobacter baumannii isolates from the ward environment and patients in the burn ICU of a Chinese hospital

Yali Gong,Xiaodong Shen,Guangtao Huang,Cheng Zhang,Xiaoqiang Luo,Supeng Yin,Jing Wang,Fuquan Hu,Yizhi Peng,Ming Li 한국미생물학회 2016 The journal of microbiology Vol.54 No.8

Acinetobacter baumannii is an important opportunistic pathogen that causes severe nosocomial infections, especially in intensive care units (ICUs). Over the past decades, an everincreasing number of hospital outbreaks caused by A. baumannii have been reported worldwide. However, little attention has been directed toward the relationship between A. baumannii isolates from the ward environment and patients in the burn ICU. In this study, 88 A. baumannii isolates (26 from the ward environment and 62 from patients) were collected from the burn ICU of the Southwest Hospital in Chongqing, China, from July through December 2013. Antimicrobial susceptibility testing results showed that drug resistance was more severe in isolates from patients than from the ward environment, with all of the patient isolates being fully resistant to 10 out of 19 antimicrobials tested. Isolations from both the ward environment and patients possessed the β-lactamase genes blaOXA-51, blaOXA-23, blaAmpC, blaVIM, and blaPER. Using pulsed-field gel electrophoresis (PFGE) and multi-locus sequence typing (MLST), these isolates could be clustered into 4 major PFGE types and 4 main sequence types (ST368, ST369, ST195, and ST191) among which, ST368 was the dominant genotype. Epidemiologic and molecular typing data also revealed that a small-scale outbreak of A. baumannii infection was underway in the burn ICU of our hospital during the sampling period. These results suggest that dissemination of β-lactamase genes in the burn ICU might be closely associated with the high-level resistance of A. baumannii, and the ICU environment places these patients at a high risk for nosocomial infection. Cross-contamination should be an important concern in clinical activities to reduce hospital acquired infections caused by A. baumannii.

Energy-saving Cooling Coated Fabric with Robust Solar Reflection and Water Repellent Properties

Miao Qi,Ying Wang,Guangtao Chang,Ruoxin Li 한국섬유공학회 2022 Fibers and polymers Vol.23 No.7

With the global climate changing, people are more aware of energy consumption and are interested in energysavingproducts or materials. One way to reduce energy consumption to improve personal thermal management efficiency isurgently needed. Therefore, we provide an alternative energy-saving method that will improve fabrics’ thermal managementby blocking infrared heat and ultraviolet light from solar radiation. A phase-inversion technique was developed to preparepoly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) micro-size and nano-size composite pore structure which canblock out the sun and be coated on fabric material. Meanwhile, by adding hydrophobic SiO2 aerogel particles (SA) to thesystem, the surface of coating became superhydrophobic, it improved waterproof and moisture-permeable properties offabric which are important for wearing or using pleasantly. It can be used for any outdoor application such as tents, clothing,or some indoor use as well.

삼각측량 근사조정법 적용한계 추정방법

이창경(Changkyung Lee),조만승(Manseung Cho),何光滔(Guangtao He) 대한공간정보학회 2018 한국지형공간정보학회 학술대회 Vol.2018 No.5

The Influence of Nano- and Micron-size of MXene Flakes on the Electrochemical Performance

Feng Ye,Bingbing Xu,Ronghu Chen,Ruoxin Li,Guangtao Chang 대한금속·재료학회 2023 ELECTRONIC MATERIALS LETTERS Vol.19 No.6

MXene, as a new type of two-dimensional material, has attracted much interest since it was discovered in 2011. However, only few articles discussed the eff ect of MXene fl ake size on its electrochemical performance. Here, a sand milling way is explored to produce nano-size MXene and the MILD method is used to prepare micron-size MXene (1 μm) as a comparison. Meanwhile, a mask-assisted interdigital micro-supercapacitors is prepared to explore the dependence of the electrochemical properties of MXene on their fl ake size. We show that nano-size MXene (200 nm) has a higher ionic conductivity as compared to normal micron-size MXene (1 μm). On the contrary, the larger fl ake size has higher electrical conductivities. As a result, the capacitance of micron-size MXene is better than nano-size MXene (200 nm) because the electrical conductivities are dominant. This research is helpful for further understanding of the infl uence of MXene fl ake size on its electrochemical performance.

Optimal SVM learning method based on adaptive sparse sampling and granularity shift factor

Hui Wen,Dongshun Jia,Zhiqiang Liu,Hang Xu,Guangtao Hao 한국인터넷정보학회 2022 KSII Transactions on Internet and Information Syst Vol.16 No.4

To improve the training efficiency and generalization performance of a support vector machine (SVM) in a large-scale set, an optimal SVM learning method based on adaptive sparse sampling and the granularity shift factor is presented. The proposed method combines sampling optimization with learner optimization. First, an adaptive sparse sampling method based on the potential function density clustering is designed to adaptively obtain sparse sampling samples, which can achieve a reduction in the training sample set and effectively approximate the spatial structure distribution of the original sample set. A granularity shift factor method is then constructed to optimize the SVM decision hyperplane, which fully considers the neighborhood information of each granularity region in the sparse sampling set. Experiments on an artificial dataset and three benchmark datasets show that the proposed method can achieve a relatively higher training efficiency, as well as ensure a good generalization performance of the learner. Finally, the effectiveness of the proposed method is verified.