럭셔리 브랜드 커뮤니티에서 고객 인게이지먼트가 중국 소비자의 구매의도 및 브랜드 태도에 미치는 영향

Liu Danyang,김효정,박민정 복식문화학회 2020 服飾文化硏究 Vol.28 No.5

Luxury companies are striving to improve their communication with customers while paying attention to online promotion and marketing activities. As companies interact with customers in luxury brand communities via various channels, they yield consumers higher value throughout the effective consumption process. In addition, this connection enhances customers’ understanding of the company, making it easier for companies to acquire empathy from customers. This study aims to analyze the value factors that affect luxury brand community members’ purchase intention and brand attitude. This study utilizes online survey results of four hundred prestige brand community users in China. The results reveal the positive effects of customer engagement on customer psychological empowerment and flow, the positive impacts of customer psychological empowerment and flow on community identity and brand attachment, the positive effects of community identity on purchase intentions, and the positive effects of brand attachment on purchase intentions and brand attitude. Furthermore, the results show that community types and fashion involvement partially moderate customer engagement. This study provides theoretical suggestions for relationship marketing in the luxury brand community environment. Last, this study presents practical implications that companies could utilize to create an emotional connection with their community members, resulting in an increase of customer support.

Soft‑template‑assisted synthesis of N‑doping layered CoS2 nanoparticles as an advanced anode for sodium‑ion batteries

Danyang Han,Guo Yu,An Liu,Gangyong Li,Wei Wang,Binhong He,Zhaohui Hou,Hong Yin 한국탄소학회 2023 Carbon Letters Vol.33 No.6

As a promising anode for sodium-ion batteries (SIBs), cobalt sulfide ( CoS2) has attracted extensive attention due to its high theoretical capacity, easy preparation, and superior electrochemical activity. However, its intrinsic low conductivity and large volume expansion result in poor cycling ability. Herein, nitrogen-doped carbon-coated CoS2 nanoparticles (N–C@ CoS2) were prepared by a C3N4 soft-template-assisted method. Carbon coating improves the conductivity and prevents the aggregation of CoS2 nanoparticles. In addition, the C3N4 template provides a porous graphene-like structure as a conductive framework, affording a fast and constant transport path for electrons and void space for buffering the volume change of CoS2 nanoparticles. Benefitting from the superiorities, the Na-storage properties of the N–C@CoS2 electrode are remarkably boosted. The advanced anode delivers a long-term capacity of 376.27 mAh g? 1 at 0.1 A g? 1 after 500 cycles. This method can also apply to preparing other metal sulfide materials for SIBs and provides the relevant experimental basis for the further development of energy storage materials.

갈바닉 LED 피부미용기기의 피부 개선에 관한 연구

정욱,Liu Danyang,김옥준 대한구강악안면병리학회 2022 대한구강악안면병리학회지 Vol.46 No.6

The beauty industry is more and more expanding due to the continuously increased interest in appearance and consumer purchases. Especially for home beauty devices, their interests hve been increased since the outbreak of COVID-19. Over the past 20 years, various studies have been conducted on beauty device, but Galvanic device has not been enough. In this study, 24 adult women, aged 43 to 59, were conducted a survey and skin analysis before and after using galvanic LED skin device for four weeks. Skin analysis was carried out by Antrea 3D(Miravex Ltd., Ireland), F-ray(BEYOUNG Co., Korea), and DUB SkinScanner(tpm Co., Germany). According to the survey, few people experienced skin-care shops or beauty devices, but many people responded positive after using the device. For the results of eye wrinkles, the average depth of wrinkles was significantly reduced(improved) in the top 25% group of subjects, and the wrinkles around the mouth were also significantly reduced(improved). Before using the device, the lifting around the eyes increased significantly from the middle 50% of the skin's sagging angle. Although the cheek area decreased (improved), the skin density increased(improved) significantly in the lower 75% of subjects with low skin density before use. The pore volumn was significantly reduced(improved) from 25% of the average pore volume before use. Pore area, density, count, depth and filling were significantly reduced(improved) from the top 75% of the skin conditions before use. For pore binding, the pore roughness value before use of the device was significantly reduced(improved) in all subjects. From the above results, it can be noted that the wrinkles, lifting, skin density and pores of galvanic LED skin beauty device have been improved. In addition, subjects with poor skin conditions showed greater improvement than those with good skin conditions.

Research on a Point Cloud Registration Method of Mobile Laser Scanning and Terrestrial Laser Scanning

Bori Cong,Qingying Li,Rufei Liu,Fei Wang,Danyang Zhu,Jiben Yang 대한토목학회 2022 KSCE Journal of Civil Engineering Vol.26 No.12

Mobile laser scanning can quickly and dynamically obtain a wide range of urban scene point clouds. However, due to factors such as occlusion and field of view limitation, it needs to be supplemented by terrestrial laser scanning. The acquisition methods and data quality of mobile point clouds and terrestrial point clouds are quite different, the target of urban scene point clouds is complex and diverse, and the corresponding feature is difficult to extract, so the point cloud fusion is difficult. To this end, a point cloud registration method of mobile and terrestrial scanning based on the target features of artificial ground objects is proposed. Firstly, the data features of mobile laser scanning point clouds and terrestrial laser scanning point clouds are analyzed, and the point clouds are diluted with equal density. Then, the artificial ground objects are extracted as the registration primitives to reduce the scene complexity, and the features of urban scenes and the features of point cloud eigenvalues and principal curvature attributes are analyzed. Combined with the octree voxel index, the multi-scale key point extraction method is constructed to extract the multi-scale key points of registration primitives. Finally, the key point constraint is used to improve the deficiencies of 4PCS (4-Points Congruent Sets) algorithm and ICP (Iterative Closest Point) algorithm to complete the registration of mobile and terrestrial point clouds in different road scenes. Experiments show that the point cloud registration accuracy can reach 2.6 cm, which provides a feasible method for high precision fusion of multi-platform laser point clouds.

Damage detection of bridge structures under moving loads based on CEEMD and PSD sensitivity analysis

Youliang Fang,Jie Xing,Xueting Liu,Danyang Liu,Ying Zhang 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.7

This study proposes a new damage identification method based on a combination of complete ensemble empirical mode decomposition (CEEMD) and power spectrum density (PSD) sensitivity analysis to analyze the acceleration signals of bridge structures under moving loads and achieve damage detection of bridge structures. This paper has achieved the ability to accurately identify the location of cracks and the extent of the damage along a girder with only one acceleration sensor arrangement. The measured data is processed by the CEEMD method. The damage location is revealed by directly examining the first-order intrinsic mode function corresponding to the highest-order pseudo-frequency component, which presents an abrupt change at the damage location. Secondly, after determining the damage location of the bridge, only the power spectrum sensitivity analysis of the crack parameters at the damage location is required to obtain the damage level, avoiding the need to blindly solve the power spectrum for all elements. Finally, the identification method is validated by considering environmental noise, damage locations, and crack depths. The numerical simulation results and experiments for various working conditions show that the method adopted in this paper has good identification capability in identifying cracks in bridge structures.

Spirodelae Herba와 Perilla Frutescens의 혼합물이 두경부암에 미치는 영향

Risu Na,김옥수,김병국,Ying Yang,Jianan Song,Danyang Liu,전상미,김옥준 대한구강악안면병리학회 2021 대한구강악안면병리학회지 Vol.45 No.3

Spirodelae Herba (SH) and Perilla Frutescens (PF) extracts have been widely used in clinical practice with various disorders for thousands of years. There are some reports regarding the anticancer effects of SH and PF each by each, but their mixture have not been investigated and their mechanisms also have not been clear. The purpose of the present study was to investigate the anticancer mechanisms and their effects of the mixture of SH and PF extracts on head and neck cancer cell line. Head and neck carcinoma KB cells were treated with SH, PF and their mixture. Anticancer effects were investigated by searching cancer cell death pathway; apoptosis and autophagy, which have been regarded to be effective and safe methods. Apoptosis, which is termed a programmed cell death, was observed by TUNNEL assay. Autophagy, which is termed a type II programmed cell death, was observed by acridine orange red staining. Additionally, the protein expressions associated with apoptosis and autophagy were detected for their mechanism by western blots. The mixture of SH and PF extracts induced autophagic and apoptotic cell death simultaneously in cancer cells. And 0.4 mg/ml of the mixture with SH and PF extracts down-regulated the expression of mTOR, however, the expressions of ATG5 and LC3-II, which induced autophagy, up-regulated. The mixture of SH and PF extracts also down-regulated the expressions of Bcl-2, but up-regulate the expressions of PARP-1 cleavage, Caspase-9 cleavage, Caspase-3 cleavage and BAX, which induced apoptosis. Taken together, these results suggested that the mixture of SH and PF extracts induce autophagic and apoptotic cell death simultaneously in head and neck cancer cells and it could be used as an alternative for anti-cancer drugs.