• Korean Journal of Human Ecology
• /
• v.22 no.1
• /
• pp.167-179
• /
• 2013

In recent years, Corporate Social Responsibility (CSR) has received particular attentions from both practitioners and scholars. This study focused on Korean national fashion businesses and identified various types of CSR practices in addition to social contributions. Besides, comparison in corporation by size of the number of full-time employees and sales volume were examined. A total of 1054 cases of 147 brands, 86 corporations between 2000 and 2012 were collected from internet articles and brand home pages. Findings were as follows. First, the types of CSR activities were categorized into the following six: economic responsibility, legal responsibility, consumer protection, protection of worker's right, protection of environment, and social contribution. Social contribution took largest portion of CSR activities (67.7%), followed by environmental protection (14%), and protection of worker's right (6.2%). The other three types presented limited cases but included negative aspects of CSR. Social contribution consisted of six sub categories (culture & art, sports, education, donation, voluntary service, and campaign), and donation took the largest part of social contribution area. Second, comparing 86 corporations by the size of the number of full-time employees, companies more than 300 employees (38.1%) were more likely to practice CSR activities. Similarly, companies with more than 500 billion won sales (13.1%) were more active in their CSR activities than their counterparts. Suggestions are given for improving CSR practices to fashion business.

• Journal of Digital Convergence
• /
• v.20 no.4
• /
• pp.73-82
• /
• 2022

As digital advertising industry grows, consumers' concerns over personal information protect also rise. Thus, the current study is designed to explore college students' perspectives on digital behavioral advertising and personal information protection through in-depth interviews. According to study results, importance of personal information protection is highly regarded among college students and interviewees suggest individuals, companies, and government organizations work together to protect personal information. College students' behavioral level of personal information protection can be divided into three levels such as 1) no-action taken, 2) passive response, and 3) active response. The study found that college students' attitude toward digital behavioral advertising is positive and also negative at the same time. Lastly, the study suggests that college students have positive attitude toward companies' personal information collection and use for the marketing purpose such as digital behavioral advertising. At the discussion section this study puts emphasis on the need for digital media literacy education and suggests practical implications for personal information collection and its procedures.

• Journal of IKEEE
• /
• v.27 no.4
• /
• pp.548-555
• /
• 2023

With the advancement of the internet, the use of personal information in online interactions has increased, underscoring the significance of data protection. Breaches of personal data due to unauthorized access can result in psychological and financial damage to individuals, and may even enable wide-ranging societal attacks aimed at those associated with the victims. In response to such threats, there is active research into security measures using blockchain to safeguard personal information. This study proposes a system that uses middleware and IAM (Identity and Access Management) services to protect personal information in a BaaS (Blockchain as a Service) environment where blockchain is provided via the Internet. The middleware operates on servers where IAM roles and policies are applied, authenticates users, and performs access control to allow only legitimate users to access blockchain data existing in the cloud. Additionally, to understand the impact of the proposed personal information protection method on the system, we measure the response time according to the time taken and the number of users under three assumed scenarios, and compare the proposed method and research related to personal information protection using blockchain in terms of security characteristics such as idea, type of blockchain, authentication, and confidentiality.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
• /
• v.13 no.1
• /
• pp.9-18
• /
• 2007

Nanocomposite has been considered as an emerging technology in developing a novel food packaging materials. Polymer nanocomposites exhibit markedly improved packaging properties due to their nanometer size dispersion. These improvements include increased barrier properties pertaining to gases such as oxygen, carbon dioxide, and water vapor, as well as to UV rays, and increased mechanical properties such as strength, stiffness, dimensional stability, and heat resistance. Additionally, biologically active ingredients can be added to impart the desired functional properties to the resulting packaging materials. New packaging materials created with this technology demonstrate an increased shelf life with maintaining high quality of the product. Nanotechnology offers big benefits for packaging. Nanocomposite technology paves the way for packaging innovation in the flexible and rigid packaging applications, offering enhanced properties such as greater barrier protection, increased shelf life and lighter-weight materials.

• BMB Reports
• /
• v.30 no.4
• /
• pp.280-284
• /
• 1997

Phenylglyoxal diethyl pyrocarbonate (DEPC), and 1-cyclohexyl-3-[2-morpholinoethyl]-carbodiimide metho-p-toluenesulfonate (CMC) are modifying reagents specific for arginine, histidine, and aspartate or glutamate, respectively. They were found to inactivate S. cerevisiae farnesyl protein transferase (FPTase). The peptide substrate protected the enzyme against inactivation by CMC and the other substrate farnesyl pyrophosphate showed protection against inactivation by phenylglyoxal. while neither of the two substrates protected the enzyme against DEPC inactivation. These results suggest the presence of aspartate/glutamate, arginine and histidine residues at the active site of this enzyme.

• BMB Reports
• /
• v.33 no.1
• /
• pp.69-74
• /
• 2000

The Arabidopsis thaliana S-Adenosylmethionine decarboxylase (AdoMetDC) cDNA ($GenBank^{TM}$ U63633) was cloned, then the AdoMetDC protein was expressed and purified. The purified AdoMetDC was inactivated by salicylaldehyde in a pseudo first- order kinetics. The secondorder rate constant for inactivation was 126 $M^{-1}min^{-1}$ with the slope of n=0.73, suggesting that inactivation is the result of the reaction of one lysine residue in the active site of AdoMetDC. Site-specific mutagenesis was performed on the AdoMetDC to introduce mutations in conserved $lysine^{81}$ residues. These were chosen by examination of the conserved sequence and proved to be involved in enzymatic activity by chemical modification. Changing $Lys^{81}$ to alanine showed an altered optimal pH. The substrate also provided protection against inactivation by salicylaldehyde. Considering these results, we suggest that the $lysine^{81}$ residue may be involved in catalytic activity.

• Archives of Pharmacal Research
• /
• v.21 no.5
• /
• pp.527-530
• /
• 1998

The antibacterial activity of novel ${\beta}$-lactamase inhibitors, 6-exomethylene penamsulfones (CH1240, CH2140), has been compared in vivo with that of sulbactam and clavulanic acid against b-lactamase producing strains. In vivo microbiological assessment was used as experimental mouse infection model by gram negative strains. Against Pseudomonas aeruginosa F0013, cefoperazone/CH 1240 was slightly less active than sulbactam. ampicillin/CH 2140 was less effective than sulbactam against escheriachia coli 3457. Especially against Citrobacter diversus 2046E, amoxicillin/CH 2140 was the most potent and amoxicillin/CH 1240 was slightly more active than clavulanic acid. consequently the difference in efficacy between the drug combinations appers to be related to the degree of protection afforded the animals by the b-lactamasse inhibitors. CH1240 and CH2140 are promising new agents and should undergo further investigations.

• 한국태양에너지학회:학술대회논문집
• /
• 2009.11a
• /
• pp.297-302
• /
• 2009

As the grid-connected photovoltaic power conditioning systems (PVPCS) are installed in many residential areas, these have raised potential problems of network protection on electrical power system. One of the numerous problems is an Islanding phenomenon. In this paper, active frequency drift (AFD) method, one of the anti-islanding analyzed by current magnitude compensation and calculation of RMS value of the output power.

• Journal of Microbiology and Biotechnology
• /
• v.25 no.8
• /
• pp.1257-1264
• /
• 2015

Trichoderma strain T-33 has been demonstrated to have inhibitory effect on the fungus species Cytospora chrysosperma. Here, an active antifungal compound was obtained from Trichoderma strain T-33 extract via combined separation technologies, including organic solvent extraction, liquid chromatography, and thin-layer chromatography. The purified compound was further characterized by advanced analytical technologies to elucidate its chemical structure. Results indicated that the active antifungal compound in Trichoderma strain T-33 extract is 2,5-cyclohexadiene-1,4-dione-2,6-bis (1,1-dimethylethyl).

• Smart Structures and Systems
• /
• v.24 no.1
• /
• pp.37-52
• /
• 2019

Despite its success and wide application, base isolation system has been challenged for its passive nature, i.e., incapable of working with versatile external loadings. This is particularly exaggerated during near-source earthquakes and earthquakes with dominate low-frequency components. To address this issue, many efforts have been explored, including active base isolation system and hybrid base isolation system (with added controllable damping). Active base isolation system requires extra energy input which is not economical and the power supply may not be available during earthquakes. Although with tunable energy dissipation ability, hybrid base isolation systems are not able to alter its fundamental natural frequency to cope with varying external loadings. This paper reports an overview of new adventure with aim to develop adaptive base isolation system with controllable stiffness (thus adaptive natural frequency). With assistance of the feedback control system and the use of smart material technology, the proposed smart base isolation system is able to realize real-time decoupling of external loading and hence provides effective seismic protection against different types of earthquakes.