노스탤지어가 물질소비 대비 체험소비 선호에 미치는 영향

유경파(Liu, Qingbo),박현정(Park, Hyun Jung) 한국문화산업학회 2017 문화산업연구 Vol.17 No.3

본 연구의 목적은 노스탤지어가 물질 소비 대비 체험 소비 선호에 영향을 미치는지 살펴보고자 하는 것이다. 노스탤지어와 체험 소비 선호 간의 관계에서 사회유대감의 역할을 탐색하고 자아해석과 물질주의를 각각 사회유대감 및 체험 소비에 영향을 미칠 수 있는 변수로 고려하여 노스탤지어가 사회유대감과 소비유형의 선호도에 미치는 영향을 분석하고자 한다. 분석 결과 노스탤지어는 사회유대감 및 체험 소비 선호에 긍정적인 영향을 미치는 것을 확인하였고 노스탤지어가 사회유대감을 높여 체험 소비의 선호도에 긍정적인 영향을 미치기도 하였다. 또한 상호의존적 자아해석 성향은 사회유대감에 긍정적인 영향을 미치고 물질주의 성향은 체험 소비의 선호도에 부정적인 영향을 미치는 것을 밝혔다. 자아해석과 물질주의 등 사회유대감 및 체험소비 선호에 영향을 줄 수 있는 변수를 함께 고려하였는데 노스탤지어가 여전히 사회유대감 및 체험소비 선호에 미치는 영향이 크다는 것을 알 수 있었다. This study investigate the relationship between nostalgia and preference of consumption types (experiential consumption vs. material consumption). Materialism and self-construal were also analyzed as control variables that can be related to social connection and preference of material consumption respectively. As elf-administered survey questionnaire was distributed among Chinese consumers. A total of 336 effective responses were collected out of which 290 were used for further analysis. The results show that nostalgia is positively associated with both perceived social connection and preference of experiential consumption. Perceived social connection had a mediating effect on the relationship between nostalgia and preference of experiential consumption. In addition, interdependent self-construal was positively associated with social connection, while materialism was negatively associated with preference of experiential consumption. 본 연구의 목적은 노스탤지어가 물질 소비 대비 체험 소비 선호에 영향을 미치는지 살펴보고자 하는 것이다. 노스탤지어와 체험 소비 선호 간의 관계에서 사회유대감의 역할을 탐색하고 자아해석과 물질주의를 각각 사회유대감 및 체험 소비에 영향을 미칠 수 있는 변수로 고려하여 노스탤지어가 사회유대감과 소비유형의 선호도에 미치는 영향을 분석하고자 한다. 분석 결과 노스탤지어는 사회유대감 및 체험 소비 선호에 긍정적인 영향을 미치는 것을 확인하였고 노스탤지어가 사회유대감을 높여 체험 소비의 선호도에 긍정적인 영향을 미치기도 하였다. 또한 상호의존적 자아해석 성향은 사회유대감에 긍정적인 영향을 미치고 물질주의 성향은 체험 소비의 선호도에 부정적인 영향을 미치는 것을 밝혔다. 자아해석과 물질주의 등 사회유대감 및 체험소비 선호에 영향을 줄 수 있는 변수를 함께 고려하였는데 노스탤지어가 여전히 사회유대감 및 체험소비 선호에 미치는 영향이 크다는 것을 알 수 있었다. This study investigate the relationship between nostalgia and preference of consumption types (experiential consumption vs. material consumption). Materialism and self-construal were also analyzed as control variables that can be related to social connection and preference of material consumption respectively. As elf-administered survey questionnaire was distributed among Chinese consumers. A total of 336 effective responses were collected out of which 290 were used for further analysis. The results show that nostalgia is positively associated with both perceived social connection and preference of experiential consumption. Perceived social connection had a mediating effect on the relationship between nostalgia and preference of experiential consumption. In addition, interdependent self-construal was positively associated with social connection, while materialism was negatively associated with preference of experiential consumption.

Facile Fabrication of Durable Antibacterial Cotton Fabric Realized by Thioglycolic Acid and Silver Nanoparticles

Qingbo Xu,Xiating Ke,Yanyan Zhang,Feiya Fu,Xiangdong Liu 한국섬유공학회 2018 Fibers and polymers Vol.19 No.11

In this study, durable antibacterial cotton fabrics were prepared by a simple two-step impregnation method. Firstly, thioglycolic acid (TGA) was grafted onto cotton fabric via esterification with the hydroxyl groups of cellulose, then silver nanoparticles (Ag NPs) were immobilized on the cotton fabric surface via coordination bonds with the TGA thiol groups. As a result, the mean size of Ag NPs coating on the cotton fabric is around 74 nm, and these functionalized cotton fabrics show superior antibacterial properties and excellent laundering durability. After withstand 50 laundering cycles, the obtained cotton fabrics still showed outstanding bacterial reduction rates (BR) against both S. aureus and E. coli, and the rates are all higher than 97 %. Therefore, this method to prepare antibacterial cotton fabric shows great potential applications in socks, cosmetic, and medical textiles.

Preparation of Copper Nanoparticles Coated Cotton Fabrics with Durable Antibacterial Properties

Qingbo Xu,Xiating Ke,Naiqin Ge,Liwen Shen,Yanyan Zhang,Feiya Fu,Xiangdong Liu 한국섬유공학회 2018 Fibers and polymers Vol.19 No.5

When copper nanoparticles (Cu NPs) were applied as an antimicrobial agent to finish cotton fabrics, there are two issues should be solved: the oxidization and the weak adsorbability onto cotton fiber surface. In the present work, we developed a new method that can achieve both immobilization and protection of the Cu NPs at the same time. As an effective binder, thioglycolic acid (TGA) was covalently linked to cotton fiber surface via an esterification with the hydroxyl groups of cellulose, then Cu NPs were introduced on the fabric surface in the presence of a protective reagent, citric acid. Due to the doubled stabilization acts of TGA and citric acid, the Cu NPs immobilized on the fabric surface showed an excellent antibacterial effect and outstanding laundering durability. Even after 50 consecutive laundering tests, the modified cotton fabrics still showed satisfactory antibacterial ability against both S. aureus and E. coli, which the bacterial reduction rates are all higher than 96 %. It is believed that this methodology has potential applications in a wide variety of textile productions such as sportswear, socks, and medical textiles.

Double Protect Copper Nanoparticles Loaded on L-cysteine Modified Cotton Fabric with Durable Antibacterial Properties

Qingbo Xu,Panpan Duan,Yanyan Zhang,Feiya Fu,Xiangdong Liu 한국섬유공학회 2018 Fibers and polymers Vol.19 No.11

In this work, we developed a new method that can achieve immobilization and protection of the Cu NPs coating on the cotton fabrics by a simple two-step impregnation method. Firstly, L-cysteine (Cys) was grafted onto cotton fabric via esterification with the hydroxyl groups of cellulose, then Cu NPs were introduced on the fabric surface in the presence of a protective reagent, citric acid. Due to the doubled stabilization acts of Cys and citric acid, the Cu NPs immobilized on the fabric surface showed an excellent antibacterial effect and outstanding laundering durability. As a result, the mean size of the Cu NPs coating on the cotton fabric is about 62.4 nm, and the modified cotton fabrics showed satisfactory antibacterial ability against both S. aureus and E. coli, which the bacterial reduction rates are all higher than 98 % even withstand 50 washing cycles. Therefore, this method to prepare antibacterial cotton fabrics showed great potential applications in socks, cosmetic, and medical textiles.

One-pot Modification on Cotton Fabric Using an Emulsion of Ag NPs Protected by Mercaptosuccinic Acid to Achieve Durably Antibacterial Effect

Panpan Duan,Qingbo Xu,Shuyang Shen,Yanyan Zhang,Lei Zhang,Feiya Fu,Xiangdong Liu 한국섬유공학회 2019 Fibers and polymers Vol.20 No.9

We presented a one-pot approach for fabrication of antibacterial cotton fabric using an emulsion of silvernanoparticles (Ag NPs) protected by mercaptosuccinic acid (MSA). The emulsion was used to finish cotton fabrics via a paddry-cure process, making the MSA molecules covalently linked to the cotton fibers by ester linkages with the hydroxylgroups of cellulose. The coordination bonds between the MSA molecules and the Ag NPs provide stable and durable effecton the immobilization of the Ag NPs on the cotton fabric, endowing its antibacterial function with an outstanding launderingdurability. Even experienced 50 consecutive laundering tests, the modified cotton fabric exhibits satisfactory bacterialreduction rates against both Staphylococcus aureus and Escherichia coli. This paper provides a simple fabricationmethodology to mitigate the safety risk and environmental impact that are typically found in the antimicrobial cotton textilesbased on Ag NPs.

Optimization of dyeing parameters of cotton standardized samples for laundry test of dye transfer inhibition program

Mingqi Guo,Li Jiang,Qingbo Yang,Chang Sun,Jianli Liu,Weidong Gao 한국의류학회 2020 Fashion and Textiles Vol.7 No.1

In order to prevent light-colored clothes from being stained by dyes released from dark clothes during the washing process, some new-type washing machines have developed the dye transfer inhibition washing program. However, there is no certified reference materials for the test of dye transfer inhibition function. To this end, cotton fabric and reactive dyes are used as experimental materials to prepare standardized samples to evaluate the dye transfer inhibition function of washing machines. Firstly, the single factor analysis method is used to analyze the significance of the dyeing parameters including dye dosage, dyeing temperature, sodium sulfate dosage and sodium carbonate dosage. Secondly, a 4-factor 5-level experimental design and theoretical prediction of the best dyeing parameters are successively carried out through central composite design and response surface method. Two evaluation indicators, the dye release amount of the standardized sample of dyed fabric and the color difference value of the standardized sample of white fabric after washing, are proposed as the response values for response surface analysis to search the optimal dying parameters in theory. The optimal dyeing parameters obtained through response surface analysis are that the dosage of dye is 5.63% (owf), the dyeing temperature is 60 °C, the dosage of sodium sulfate is 93.60 g/L, and the dosage of sodium carbonate is 15 g/L. Experimental results indicate that the standardized samples prepared with optimal dyeing parameters can effectively distinguish the dye transfer inhibition function of washing machines.

Protective effect of Lactobacillus plantarum ATCC8014 on acrylamide-induced oxidative damage in rats

Zhao Sijia,Zhao Xiaoduo,Liu Qingbo,Jiang Yujun,Li Yanhua,Feng Wenxiao,Xu Honghua,Shao Meili 한국응용생명화학회 2020 Applied Biological Chemistry (Appl Biol Chem) Vol.63 No.4

Acrylamide (AA), which is mainly found in fried foods, causes neurotoxicity, genetic toxicity, carcinogenic effects, and DNA damage. This study confirms that a strain of lactic acid bacteria (Lactobacillus plantarum ATCC8014) could alleviate the toxicity of rats by inhibiting the AA-induced oxidative damage. Forty-eight adult male SD rats were randomly divided into eight groups: control group, AA group (40 mg/kg), three different doses (1 × 107 CFU/ml, 1 × 108 CFU/ ml, 1 × 109 CFU/ml of Lactobacillus plantarum ATCC8014) of prevention groups and therapeutic groups, respectively. At the end of three-week experiment, AA treatment produced a significant reduction in the rate of weight gain along with the symptoms of hind limb splay and ataxia. Histological examinations revealed various degrees of injury in five tissues. Levels of superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH) in group AA rats were significantly decreased, but the level of lipid peroxidation (LPO) was significantly increased (p < 0.05). Both prevention and therapeutic groups with 1 × 109 CFU/ml of Lactobacillus plantarum ATCC8014 could effectively reduce the injury of AA to the body. However, reductions in both groups were not statistically significant.

An Improved NOx Emission Factor Model for Estimating Exhaust Emissions on Two Bulk Carriers

Kuiquan Duan,Hui Liu,Qingbo Li 한국대기환경학회 2021 한국대기환경학회 학술대회논문집 Vol.2021 No.10

A dynamic NOx emission factors (EFNOx) model was developed based on on-board exhaust measurements of two bulk carriers over the course of a navigation. Missing AIS data processing, ship speed modification, fuel consumption estimation and on-board exhaust measurement data were used to develop dynamic EFNOx model. The ship speed in the cube of ratio of ship speed and maximum service speed was modified by wind, wave and current to estimate main engine loads. The results show that the modified speed (MS) can accurately predict the main engine loads, which verified by actual fuel consumption, and the absolute value of relative error for each cruise was range from 1.00% and 24.39%. The dynamic EFNOx model shown a better prediction of NOx emission quantity than that current inventory, and the absolute value of relative error for each cruise was between 5.69%~25.26%. The model is helpful to improve the calculation accuracy of emission inventory for typical bulk carriers in China.

The Oligomer Polyacrylic Acid Effect on Immobilization of Silver Nanoparticles onto Cotton Fabric to Achieve a Durably Antibacterial Function

Lin Li,Panpan Duan,Qingbo Xu,XuJun Zhang,JiaNing Chen,Feiya Fu,HongYan Diao,Xiangdong Liu 한국섬유공학회 2020 Fibers and polymers Vol.21 No.9

Aiming to a durably antibacterial function, stable immobilization of silver nanoparticles (Ag NPs) on cottontextiles still represents challenging in textile industry. In the present work, by grafting oligomeric polyacrylic acid (PAA) ontocotton fiber surfaces, we effectively prepared the Ag NPs with controllable size on the fiber surface, which are of average sizeof 16.43 nm, and therefore achieved a desirable antibacterial durability. The oligomer PAA binder can give the modifiedfabrics with a remarkable antibacterial durability against washing, as the bacterial reduction rates against bothStaphylococcus aureus and Escherichia coli remained over 90 % even after 50 laundering cycles. Moreover, this graft toapproach using oligomeric PAA shows merits in maintaining the desired cotton properties such as flexibility, waterabsorptivity and vapor permeability. Finally, this finishing process ensures a reliable safety for human skin.

Influence of graphene oxide on the heat resistance of high strength concrete

Guangming Meng,Yuwu Sui,Shu Liu,Qingbo Tian,Xinling Cui,Yuejian Wu 한양대학교 청정에너지연구소 2022 Journal of Ceramic Processing Research Vol.23 No.6

The effect of Graphene Oxide (GO) on the thermal properties of high-strength concrete has been less studied. The mechanicalproperties, compactness, mineral composition and microstructure of the high-strength concrete with GO addition wereexamined by heat treatments at different temperatures. The results showed that the enhancement of the residual flexuralstrength with GO addition was greater than that of the residual compressive strength; GO addition had a significant effecton the mechanical properties of concrete treated at less than 500 ℃; Differential Scanning Calorimeter (DSC) test showed thatthe high-strength concrete with GO addition required more heats for its decomposition after 500 ℃; The internal pores/cracksof the high strength concrete with GO addition were reduced after the heat treatment at a high-temperature because theproducing of new crystals can improve the residual properties of the high-strength concrete.