텍스트 마이닝 분석을 이용한 폴더블폰에 대한 소비자 인식 및 수용 관련 반응에 관한 연구: Galaxy Z Flip을 중심으로

곽문정 ( Guo¸ Wenjing ),이유림 ( Lee¸ Yu Lim ),정재은 ( Chung¸ Jae-eun ) 한국소비자학회 2021 소비자학연구 Vol.32 No.4

본 연구는 혁신 제품인 폴더블형 스마트폰에 대한 소비자인식을 파악하고 이와 수용 간의 관계를 분석하였다. 이를 위해 소셜미디어에서 제시된 대표적인 제품인 Galaxy Z Flip을 언급한 소비자발신 게시글을 분석데이터로 수집하고 R을 이용하여 빈도분석, 군집분석 그리고 의미연결망분석을 포함하는 텍스트 마이닝 분석을 수행하였다. 이를 통해서 해당 제품을 접하는 소비자가 가진 인식의 전체적인 구조, 그들이 지각하는 혜택 및 비용의 내용 그리고 소비자의 다양한 수용 관련 반응과 연관된 요인을 알아보았다. 본 연구의 주요 결과를 요약하면 다음과 같다. 첫째, 소비자인식의 구조를 분석한 결과 제품 수용 욕구를 의미하는 개념과 제품의 미적인 매력에 대한 긍정적인 평가를 의미하는 개념이 전체적인 인식 중에서 큰 영향력을 가진 것으로 나타났다. 둘째, 지각된 혜택 및 비용을 파악한 결과 심미성과 정서적 및 사회적 혜택을 담은 쾌락적 혜택, 폴딩 기능 우수성과 카메라 우수성을 포괄하는 효용적 혜택, 기능성 부족, 액정 내구성 부족과 형태 불편성을 담은 기능적 비용 및 가격 및 수리비에 대한 부담을 의미하는 금전적 비용이 추출되었다. 이를 기반으로 폴더블폰에 대한 소비자의 혜택 및 비용 인식과 기존 일반 스마트폰에 대한 인식 간에 차이가 있음을 확인하였다. 셋째, 혁신에 대한 수용 및 저항을 의미하는 다양한 소비자 반응을 발견하였으며 반응들과 연관된 요인 중에 색감 및 사회적 영향이 상대적으로 높은 연관성을 나타내었다. 본 연구는 폴더블폰에 대한 소비자 인식, 행동적인 반응 및 이와 연관된 요인을 파악함으로써 혁신 제품을 수용하는 소비자에 대한 이해를 제고하며, 폴더블폰이 향후 소비자에게 더 많은 효용을 제공할 수 있도록 시사점을 제시한다. The purpose of this study is to analyze consumers’ perception of foldable smartphone and the relationships between their perception and acceptance related responses of the innovative smartphone. To this end, text data from social media that contain consumers’ opinion about Galaxy Z Flip were collected with R programming. Text mining techniques including term frequency analysis, clustering analysis and Semantic Network Analysis were employed to examine the structure of consumers' overall perception, contents of perceived benefits and costs as well as the associations between perceived factors and consumer's various responses. The results are summarized as follow. First, notions that refer to consumers’ desire for the product and positive opinions on product appearance showed the strongest influence in the overall words structure. Second, benefits and costs perception were classified into hedonic and utilitarian benefits as well as functional and monetary costs. The hedonic benefits included perceived aesthetics, emotional and social benefits whereas the utilitarian benefits consisted of excellent performance of folding and camera functions. On the other hand, the perceived costs contained the disappointing performance of functions such as battery life and screen durability, the discomfort caused by product shape and the financial burden due to high price and maintenance fee. Besides, benefits and costs perception of foldable smartphone were compared with results of previous studies that focused on general mobile products. Third, the color choices offered by Galaxy Z Flip and social influences were strongly associated with consumer’s acceptance related behavioral responses. Theoretical contributions of this study are identifying and comparing factors related to consumers' various types of innovation-acceptance behaviors. Further, the study provides foldable smartphone manufactures with practical implications to develop devices that meet the needs of consumers.

Multi-Devices Composition and Maintenance Mechanism in Mobile Social Network

WenJing Li,Yifan Ding,Shaoyong Guo,Xuesong Qiu 한국통신학회 2015 Journal of communications and networks Vol.17 No.2

In mobile social network, it is a critical challenge to select an optimal set of devices to supply high quality service constantly under dynamic network topology and the limit of device capacity in mobile ad-hoc network (MANET). In this paper, a multi-devices composition and maintenance problem is proposed with ubiquitous service model and network model. In addition, a multi-devices composition and maintenance approach with dynamic planning is proposed to deal with this problem, consisting of service discovery, service composition, service monitor and service recover. At last, the simulation is implemented with OPNET andMATLAB and the result shows this mechanism is better applied to support complex ubiquitous service.

Shikonin ameliorates salivary gland damage and inflammation in a mouse model of Sjögren's syndrome by modulating MAPK signaling pathway

Wenjing Guo,Xin Wang,Chao Sun,Jian Wang,Tao Wang The Korean Society of Pharmacology 2023 The Korean Journal of Physiology & Pharmacology Vol.27 No.4

Sjögren syndrome (SS) is a systemic inflammatory autoimmune disease that involves exocrine glands. Shikonin is extracted from comfrey, which is conventionally used as an anti-tumor, antibacterial, and antiviral drug in China. However, the application of Shikonin in SS remains unreported. This study aimed to verify the potential functions of Shikonin in SS progression. Firstly, non-obese diabetic mice were used as the SS mouse model, with C57BL/6 mice serving as the healthy control. It was demonstrated that the salivary gland damage and inflammation were aggravated in the SS mouse model. Shikonin improved salivary gland function decline and injury in the SS mouse model. Moreover, Shikonin reduced inflammatory cytokines and immune infiltration in the SS mouse model. Further experiments discovered that Shikonin attenuated the MAPK signaling pathway in the SS mouse model. Lastly, inhibition of the MAPK signaling pathway combined with Shikonin treatment further alleviated the symptoms of SS. In conclusion, Shikonin ameliorated salivary gland damage and inflammation in a mouse model of SS by modulating the MAPK signaling pathway. Our findings indicate that Shikonin may be a useful drug for SS treatment.

Expression of fox-related genes in the skin follicles of Inner Mongolia cashmere goat

Wenjing Han,Xiaoyan Li,Lele Wang,Honghao Wang,Kun Yang,Zhixin Wang,Ruijun Wang,Rui Su,Zhihong Liu,Yanhong Zhao,Yanjun Zhang,Jinquan Li 아세아·태평양축산학회 2018 Animal Bioscience Vol.31 No.3

Objective: This study investigated the expression of genes in cashmere goats at different periods of their fetal development. Methods: Bioinformatics analysis was used to evaluate data obtained by transcriptome sequencing of fetus skin samples collected from Inner Mongolia cashmere goats on days 45, 55, and 65 of fetal age. Results: We found that FoxN1, FoxE1, and FoxI3 genes of the Fox gene family were probably involved in the growth and development of the follicle and the formation of hair, which is consistent with previous findings. Real-time quantitative polymerase chain reaction detecting system and Western blot analysis were employed to study the relative differentially expressed genes FoxN1, FoxE1, and FoxI3 in the body skin of cashmere goat fetuses and adult individuals. Conclusion: This study provided new fundamental information for further investigation of the genes related to follicle development and exploration of their roles in hair follicle initiation, growth, and development.

Isoliquiritigenin attenuates spinal tuberculosis through inhibiting immune response in a New Zealand white rabbit model

Wenjing Wang,Baozhi Yang,Yong Cui,Ying Zhan 대한약리학회 2018 The Korean Journal of Physiology & Pharmacology Vol.22 No.4

Spinal tuberculosis (ST) is the tuberculosis caused by Mycobacterium tuberculosis (Mtb) infections in spinal curds. Isoliquiritigenin (4,2’,4’-trihydroxychalcone, ISL) is an anti-inflammatory flavonoid derived from licorice (Glycyrrhiza uralensis ), a Chinese traditional medicine. In this study, we evaluated the potential of ISL in treating ST in New Zealand white rabbit models. In the model, rabbits (n=40) were infected with Mtb strain H37Rv or not in their 6th lumbar vertebral bodies. Since the day of infection, rabbits were treated with 20 mg/kg and 100 mg/kg of ISL respectively. After 10 weeks of treatments, the adjacent vertebral bone tissues of rabbits were analyzed through Hematoxylin-Eosin staining. The relative expression of Monocyte chemoattractant protein-1 (MCP-1/CCL2), transcription factor κB (NF-κB) p65 in lymphocytes were verified through reverse transcription quantitative real-time PCR (RT-qPCR), western blotting and enzyme-linked immunosorbent assays (ELISA). The serum level of interleukin (IL)-2, IL-4, IL-10 and interferon γ (IFN-γ) were evaluated through ELISA. The effects of ISL on the phosphorylation of IκBα, IKKα/β and p65 in NF-κB signaling pathways were assessed through western blotting. In the results, ISL has been shown to effectively attenuate the granulation inside adjacent vertebral tissues. The relative level of MCP-1, p65 and IL-4 and IL-10 were retrieved. NF-κB signaling was inhibited, in which the phosphorylation of p65, IκBα and IKKα/β were suppressed whereas the level of IκBα were elevated. In conclusion, ISL might be an effective drug that inhibited the formation of granulomas through downregulating MCP-1, NF-κB, IL-4 and IL-10 in treating ST.

Buckling analysis of structures under combined loading with acceleration forces

Wenjing Wang,Randy Gu 국제구조공학회 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.52 No.5

The structures of concern in this study are subject to two types of forces: dead loads from the acceleration imposed on the structures as well as the installed operation machines and the additional adjustable forces. We wish to determine the critical values of the adjustable forces when buckling of the structures occurs. The mathematical statement of such a problem gives rise to a constrained eigenvalue problem (CEVP) in which the dominant eigenvalue is subject to an equality constraint. A numerical algorithm for solving the CEVP is proposed in which an iterative method is employed to identify an interval embracing the target eigenvalue. The algorithm is applied to four engineering application examples findingthe critical loads of a fixed-free beam subject to its own body force, two plane structures and one wide-flange beam using shell elements when acceleration force is present. The accuracy is demonstrated using thefirst example whose classical solution exists. The significance of the equality constraint in the EVP is shown by comparing the solutions without the constraint on the eigenvalue. Effectiveness and accuracy of the numerical algorithm are presented.

Synthesis of acrylic-lignosulfonate resin for crystal violet removal from aqueous solution

Wenjing Xu,Wensheng Zhang,Yan Li,Wei Li 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.9

A new acrylic-lignosulfonate resin (ALR) was obtained by radical polymerization using calcium lignosulfonate (LS-Ca) and acrylic acid (AA) as raw materials. ALR was characterized using FT-IR, SEM, TG-DSC and N2 adsorption–desorption surface area and pore size analyzer. Batch adsorption, including initial concentration, time, pH, dosage and temperature on the adsorption of crystal violet (CV) by ALR, was systematically studied. The ALR contained porous structure and the specific surface area of ALR was 190.55m2/g with average pore diameter 11.34 nm. The kinetic and equilibrium data fitted into the pseudo-second-order model and Freundlich isotherm model, respectively. The adsorption process was slightly influenced in the range of pH=3-12. The maximum adsorption capacity of CV was found to be as high as 150.40±4.80mg/g for 24 h at 25 oC. Thermodynamic parameters were evaluated, and their values indicated that adsorption of CV on ALR was an exothermic process and spontaneous.

Mangiferin loaded magnetic PCEC microspheres: preparation, characterization and antitumor activity studies in vitro

WenJing Xiao,Jun Hou,Jie Ma,BoTao Yu,JianDong Ren,WeiHua Jin,Juan Wu,DeZhi Zheng,KaiHua Fan 대한약학회 2021 Archives of Pharmacal Research Vol.44 No.8

Mangiferin is a promising effective chemopreventiveagent against various tumors. However, itsclinical use is limited by poor water solubility and lowbioavailability. In this article, mangiferin loaded magneticPCEC microspheres (MG-MS) were designed, characterizedand the antitumor activity of MG-MS was evaluatedin vitro. The magnetic nanoparticles (MNP) were synthesizedvia the high-temperature reaction of ironacetylacetonate in phenyl ether in the presence of oleic acidand oleylamine. Poly (ε-caprolactone)-poly (ethyleneglycol)-poly (ε-caprolactone) (PCL-PEG-PCL, PCEC)copolymers were formed by ring-opening copolymerizationof ε-CL initiated by PEG-diol using Sn(Oct)2 as acatalyst and MG-MS were prepared by solvent diffusionmethod. MNP, PCEC copolymer, and MG-MS werecharacterized by GPC, TEM, XRD, FT-IR, 1H-NMP andMalvern Laser Particle Sizer. Meanwhile, the antiproliferativeactivity in vitro and in vitro release behavior of thismicrospheres were studied in detail. The results indicatethat the obtained magnetic microspheres might have greatpotential as an effective carrier for mangiferin used incancer chemotherapy.

Research on Static Behavior of Stud Shear Connectors after Strong-corrosion Based on Push-out Test

Wenjing Qiao,Qihan Hu,Fan Yang,Haoyun Zhu 대한토목학회 2023 KSCE Journal of Civil Engineering Vol.27 No.8

To study the shear bearing performance and failure mechanism of stud shear connectors after strong-corrosion, six groups of stud shear connectors were designed and then welded to the specimen. They are corroded by hydrochloric acid time for 0 h, 2 h, 12 h, 24 h, 48 h, and 72 h. Herein, the loading process, load-slip curve, shear bearing capacity, and failure mode were obtained by the push-out test. The bearing capacity formula was also proposed by the stress mechanism of 84 finite element models. The results of the study on stud shear connectors show that the shear capacity, deformation capacity and slip decrease gradually with the extension of corrosion time. Among them, the enlargement in the diameter exerts considerable influence on their shear capacity. Notwithstanding, the shear bearing capacity slightly increases with stud shear connectors lengthened. The concrete strength grade can strengthen the shear capacity. Finally, the shear bearing capacity formula, taking the reliability coefficient into account, is proposed by the exit test data of 104 stud shear connectors.

Selenide-linked polydopamine-reinforced hybrid hydrogels with on-demand degradation and light-triggered nanozyme release for diabetic wound healing

Wenjing Li,Ying Bei,Xiangqiang Pan,Jian Zhu,Zhengbiao Zhang,Tinglin Zhang,Jieting Liu,Dan Wu,Meng Li,Yan Wu,Jie Gao 한국생체재료학회 2023 생체재료학회지 Vol.27 No.00

Background Multifunctional hydrogels with controllable degradation and drug release have attracted extensive attention in diabetic wound healing. This study focused on the acceleration of diabetic wound healing with selenidelinked polydopamine-reinforced hybrid hydrogels with on-demand degradation and light-triggered nanozyme release. Methods Herein, selenium-containing hybrid hydrogels, defined as DSeP@PB, were fabricated via the reinforcement of selenol-end capping polyethylene glycol (PEG) hydrogels by polydopamine nanoparticles (PDANPs) and Prussian blue nanozymes in a one-pot approach in the absence of any other chemical additive or organic solvent based on diselenide and selenide bonding-guided crosslinking, making them accessible for large-scale mass production. Results Reinforcement by PDANPs greatly increases the mechanical properties of the hydrogels, realizing excellent injectability and flexible mechanical properties for DSeP@PB. Dynamic diselenide introduction endowed the hydrogels with on-demand degradation under reducing or oxidizing conditions and light-triggered nanozyme release. The bioactivity of Prussian blue nanozymes afforded the hydrogels with efficient antibacterial, ROS-scavenging and immunomodulatory effects, which protected cells from oxidative damage and reduced inflammation. Further animal studies indicated that DSeP@PB under red light irradiation showed the most efficient wound healing activity by stimulating angiogenesis and collagen deposition and inhibiting inflammation. Conclusion The combined merits of DSeP@PB (on-demand degradation, light-triggered release, flexible mechanical robustness, antibacterial, ROS-scavenging and immunomodulatory capacities) enable its high potential as a new hydrogel dressing that can be harnessed for safe and efficient therapeutics for diabetic wound healing.