• Electronics and Telecommunications Trends
• /
• v.34 no.3
• /
• pp.43-54
• /
• 2019

Currently, the use of unmanned aerial vehicles (UAVs) is spreading from recreational purposes to the public- and commercial-use product areas. Various efforts are being made worldwide to ensure the safety of UAVs and expand their service applications and convenience, because autonomous flights are becoming increasingly popular. In order for a UAV to perform autonomous flight and mission without operator assistance, environmental perception technology, path planning technology, and flight control technology are needed. In this article, we present recent trends in these technologies.

• Annual Conference of KIPS
• /
• 2013.11a
• /
• pp.998-1000
• /
• 2013

소상공인은 2012년 현재 우리나라 전체 사업체 대비 87.8%를 차지하는 중요한 경제활동의 원동력이다. 그러나 대부분의 소상공인 창업은 소자본으로 창업 및 폐업을 지속적으로 거듭하고 있는 실정에 있으며 소규모 기업은 많은 사람들에게 직접적인 생계수단이기 때문에 우리나라 경제에서 큰 비중을 차지하고 있다. 본 연구에서는 이러한 소상공인들이 소상공인 공동협업체를 위한 제조사별 제품정보 공유기반 협업 서비스 설계하고 유용한 정보를 제공하는 시스템을 보급하고자 한다. 소상공인을 위한 소상공인 공동체 협업화를 위한 시스템을 구축하여 제공함으로써 소상공인들의 경쟁력 강화에 기여할 수 있을 것으로 기대된다.

• Food Science and Industry
• /
• v.50 no.3
• /
• pp.51-59
• /
• 2017

Due to the nature of HMR food that is susceptible to contamination, its safety management is becoming more important. The relevant food types in food code corresponding to HMR foods are addressed, and the criteria for hygiene indicator bacteria and food poisoning bacteria, and storage and distribution standards according to the product type were presented. The government's safety management for HMR foods is basically carried out through the Food Sanitation Act. Those who intend to do HMR business must complete business registration or declaration, hygiene education, health examination of employees, and comply with legal obligations such as HACCP application. The government confirms compliance with legal requirements through hygiene inspection and monitoring inspection of products. However, the safety of HMR foods is not realized by the safety management system alone. A food safety culture should be established in which industry workers and consumers carry out actions to ensure food safety.

• East Asian Economic Review
• /
• v.24 no.4
• /
• pp.349-388
• /
• 2020

The US-China trade war forced a reluctant semiconductor industry into someone else's fight, a very different position from its leading role in the 1980s trade conflict with Japan. This paper describes how the political economy of the global semiconductor industry has evolved since the 1980s. That includes both a shift in the business model behind how semiconductors go from conception to a finished product as well as the geographic reorientation toward Asia of demand and manufactured supply. It uses that lens to explain how, during the modern conflict with China, US policymakers turned to a legally complex set of export restrictions targeting the semiconductor supply chain in the attempt to safeguard critical infrastructure in the telecommunications sector. The potentially far-reaching tactics included weaponization of exports by relatively small but highly specialized American software service and equipment providers in order to constrain Huawei, a Fortune Global 500 company. It describes potential costs of such policies, some of their unintended consequences, and whether policymakers might push them further in the attempt to constrain other Chinese firms.

• Journal of information and communication convergence engineering
• /
• v.20 no.1
• /
• pp.1-7
• /
• 2022

Herein, a new space-time block coding technique is proposed for a MIMO 2 × 2 multiple-input multiple output (MIMO) system to minimize the bit error rate (BER) in Rayleigh fading channels with reduced decoding complexity using ZF and MMSE linear detection techniques. The main objective is to improve the service quality of wireless communication systems and optimize the number of antennas used in base stations and terminals. The idea is to exploit the correlation product technique between both information symbols to transmit per space-time block code and their own orthogonal Walsh-Hadamard sequences to ensure orthogonality between both symbol vectors and create a full-rate orthogonal STBC code. Using 16 quadrature amplitude modulation and the quasi-static Rayleigh channel model in the MATLAB environment, the simulation results show that the proposed space-time block code performs better than the Alamouti code in terms of BER performance in the 2 × 2 MIMO system for both cases of linear decoding ZF and MMSE.

• International Journal of Internet, Broadcasting and Communication
• /
• v.14 no.2
• /
• pp.98-108
• /
• 2022

In this study, social network analysis was performed to compare and analyze changes in domestic tourism trends before and after the outbreak of COVID-19 in a situation where the damage to the tourism industry due to COVID-19 is increasing. Using Textom, a big data analysis service, data were collected using the keywords "travel destination" and "travel trend" based on the collection period of 2019 and 2020, when the epidemic spread to the world and became chaotic. After extracting a total of 80 key words through text mining, centrality was analyzed using NetDraw of Ucinet6, and clustered into 4 groups through CONCOR analysis. Through this, we compared and analyzed changes in domestic tourism trends before and after the outbreak of COVID-19, and it is judged to provide basic data for tourism marketing strategies and tourism product development in the post-COVID-19.

• International Journal of Knowledge Content Development & Technology
• /
• v.12 no.4
• /
• pp.7-23
• /
• 2022

Media utilization in colleges of education in Nigeria is compulsory to train pre-service teachers. Psychological variables (emotional intelligence, and self-efficacy) and media improvisation were investigated on media resources utilization among lecturers in colleges of education in the South-West, Nigeria. The descriptive design was adopted and multi-staged procedure was used to select 812 (493 males; 319 females). Emotional intelligence (r = 0.79), media improvisation (r = 0.71), self-efficacy (r = 0.85 and media resources utilization r = 0.96) scales were used for data collection. The data were analyzed using descriptive statistics and Pearson product moment at 0.05 level of significance. The level of emotional intelligence, self-efficacy and media improvisation were high. Significant relationship existed among: emotional intelligence (r = 0.42), Media improvisation (r = 0.46) and Teaching self-efficacy (r = 0.31) to media resources utilization. It recommended that lecturers' emotional intelligence, self-efficacy and media improvisation are to be promoted in colleges of education.

• Journal of Agricultural Extension & Community Development
• /
• v.29 no.1
• /
• pp.33-49
• /
• 2022

The competitive strategy perspective is one of the important approaches to develop ecotourism sites. It increases the residents' profits and overcomes the instability of the supply in the marketability. The study aims to explore the ecotourism successful factors based on competitiveness strategies. We found seven key success factors of the competitive strategy approach in the ecotourism industry as the guarantee of sustainable ecotourism as follows: infrastructure, operation management, product/technical development, human resources, service system and cultivation of tourists' understanding and behavior, marketing activities, and local resources. Conclusions and practical implications for successful factors of ecotourism are presented according to the result of the in-depth interview and focus group interview with ecotourism experts.

• Asia Marketing Journal
• /
• v.20 no.2
• /
• pp.85-98
• /
• 2018

Korea Ginseng Corporation is a global ginseng company, owning one of the most leading brands in Korea, CheongKwanJang. Although Korea Ginseng Corporation was an undoubted market leader in the red ginseng market, it faced a new challenge in 2012 due to the changes in market environment. In order to keep its market leadership in a saturated and competitive market, the company decided to extend its product lines alongside the launches of new brands. In this article, the authors demonstrate the development process of the company's brand portfolio strategy to reveal how the company turned CheongKwanJang into a mega-brand. Also, this paper explores the impact of CheongKwanJang's reputation on new brands, thereby illustrating how the company successfully managed to introduce new products outside of the red ginseng category, ranging from organic food to a pet food market.

• The Korean Journal of Franchise Management
• /
• v.2 no.1
• /
• pp.61-73
• /
• 2011

Supermarket Franchising, as a relatively new mode of retail business, is often regarded as one of the two hallmarks of the "Modern Logistics Revolution". After more than ten years of development, franchise supermarkets have been a rising force in retail business in China. As a product of a highly-developed commercial economy, franchise supermarkets mainly deals in foodstuffs and other daily necessities, featuring low cost, high turnover rate, low prices and diversified inventory. Propelled by the conveniences that come with open shelves and self-service shopping, franchise supermarkets have been growing very rapidly and the rise of many franchise supermarket brands bears testimony to its growth potential and profitability. Meanwhile, in the backdrop of this boom, some franchise supermarkets are going bankrupt. This paper analyzes the current status of franchise supermarkets and some factors bearing on their core competencies, so as to close the competitiveness gap with international retail giants.