The Impact of COVID-19 on a Firm’s Product Inventory Management and the Role of Corporate Governance

이한솔,최동준 한국상품학회 2022 商品學硏究 Vol.40 No.3

This study examines the impact of the COVID-19 pandemic on the firm’s product inventory management. Extant studies regarding inventory management have suggested that market uncertainties are significantly associated with a firm’s inventory management. Given that COVID-19 increased the market uncertainties, this study postulates that COVID-19 adversely affects a firm’s inventory management. Using data on Korean listed manufacturing firms for the period 2017-2021, this study found a negative association between the COVID-19 pandemic and a firm’s inventory management. Moreover, by using data on the proportion of outside directors, foreign investor ownership, and blockholder ownership, this study investigates the role of corporate governance in the negative relationship between the COVID-19 pandemic and inventory management. The results reveal that strong corporate governance mitigates the negative effects of COVID-19. Specifically, the negative association between COVID-19 and inventory management is more pronounced for firms with weak corporate governance, while it has become statistically insignificant for firms with strong corporate governance. This study provides insights on the impact of COVID-19 on a firm’s operations and practical implications for market participants, including investors and regulators, that strong corporate governance facilitates firms to minimize the adverse impact of exogenous shocks.

다족형 생체모방 수중 로봇(CALEB10)의 각 자유도를분리한 자세 제어

이한솔,이지홍 한국로봇학회 2018 로봇학회 논문지 Vol.13 No.1

This paper describes a study on posture control of the multi-legged biomimetic underwater robot (CALEB10). Because the underwater environment has a feature that all degrees of freedom are coupled to each other, we designed the posture control algorithm by separating each degree of freedom. Not only should the research on posture control of underwater robots be a precedent study for position control, but it is also necessary to compensate disturbance in each direction. In the research on the yaw directional posture control, we made the drag force generated by the stroke of the left leg and the right leg occur asymmetrically, in order that a rotational moment is generated along the yaw direction. In the composite swimming controller in which the controllers in each direction are combined, we designed the algorithm to determine the control weights in each direction according to the error angle along the yaw direction. The performance of the proposed posture control method is verified by a dynamical simulator and underwater experiments.

블록체인을 이용한 신규 비즈니스 모델 성공 요인 연구 : 블록체인의 기술적 특성을 중심으로

이한솔,채상미 한국경영정보학회 2018 한국경영정보학회 학술대회논문집 Vol.2018 No.11

다족형 생체모방 수중 로봇(CALEB10)의 Pitch 유영 제어

이한솔,이지홍 한국로봇학회 2017 로봇학회 논문지 Vol.12 No.2

The CALEB10 is a multi-legged biomimetic underwater robot. In the last research, we developed a swimming pattern named ESPG (Extended Swimming Pattern Generator) by observing diving beetle’s swimming actions and experimented with a positive buoyancy state in which CALEB10 floats on the water. In this paper, however, we have experimented with CALEB10 in a neutral buoyancy state where it is completely immersed in water for pitch motion control experiment. And we found that CALEB10 was unstably swimming in the pitch direction in the neutral buoyancy state and analyzed that the reason was due to the weight proportion of the legs. In this paper, we propose a pitch motion control method to mimic the pitch motion of diving beetles and to solve the problem of CALEB10 unstably swimming in the pitch direction. To control the pitch motion, we use the method of controlling additional joints while swimming with the ESPG. The method of obtaining propulsive force by the motion of the leg has a problem of giving propulsive force in the reverse direction when swimming in the surge direction, but this new control method has an advantage that a propulsive moment generated by a swimming action only on a target pitch value. To demonstrate validity this new control method, we designed a dynamics-based simulator environment. And the control performance to the target pitch value was verified through simulation and underwater experiments.

ESG 경영에 대한 소고 - ESG 리스크를 중심으로 -

이한솔 아주대학교 법학연구소 2023 중소기업과 법 Vol.14 No.2

동료 영향 민감성, 이용 즐거움 및 행동의도 간의 구조적 관계에서사회적 네트워크 크기의 조절역할 분석 - 모바일 환경에서 청소년의 영화소비 행동을 중심으로 -

이한솔,김현철 한국기업경영학회 2018 기업경영연구 Vol.25 No.6

This study intend to find out the effects of adolescent’s susceptibility to peer influence on enjoyment of usage, online word-of-mouth intent, purchase intention and the moderating effect of social network size. In particular, the additional adjustment analysis has been conducted. This research divided personal online and offline friends based on pervious studies. The findings of this study as follow: First, informative to peer influence had significant positive impact on enjoyment of usage, online word-of-mouth intention and purchase intention. whereas, normative to peer influence has significant positive effects on enjoyment of usage and online word-of-mouth intention. But the impact on purchase intention was not significant. Second, the result of social network size moderating effects have determined that the informative to peer influence and normative to peer influence to low group had a significant positive effect on enjoyment of usage, online word-of-mouth intention, and purchase intention. On the other hand, informative to peer influence was found to have a significant impact on enjoyment of usage, online word of mouth intention and purchase intention in high group. Third, the results of the offline group, normative to peer influence of the low group was found to have a significant positive effect on enjoyment of usage, online word-of-mouth intention and purchase intention. the informative to peer influence were positively influenced online word-of-mouth intention and purchase intention. However, in the case of the high group, the informative to peer influence had a significant effect on enjoyment of use, online word of mouth intention and purchase intention, but the normative to peer influence had no influence with the related variables. Finally, the additional analysis of the online group showed that the normative to peer influence to the purchase intention of the low group showed no significant effect on the purchase intention, the higher group showed that the susceptibility to peer influence had no structural effect on enjoyment of use, online word - mouth intention and purchase intention. Based on the results of this study, the practical direction of the company and the direction of the research were also discussed. 본 연구는 청소년의 동료 영향 민감성이 이용 즐거움, 온라인 구전의도, 구매의도의 구조적 관계를 살펴보고, 사회적 네트워크 크기의 조절적 역할을 알아보고자 하였다. 특히, 선행 연구에서 실시한 오프라인 집단과 온라인 집단을 개별적으로 추가조절분석을 실시하였다. 연구 결과 첫째, 청소년의 정보 영향 민감성은 이용 즐거움, 온라인 구전의도 및 구매의도에 유의한 영향을 미치는 것으로 나타났다. 반면, 규범적 영향 민감성은 이용 즐거움 및 온라인 구전의도에는 유의한 영향을 미치는 것으로 나타났지만, 구매의도에는 유의하지 않는 것으로 나타났다. 둘째, 사회적 네트워크 크기 조절효과를 분석한 결과, 저 집단은 정보 영향 민감성과 규범적 영향 민감성이 이용 즐거움과 온라인 구전의도 및 구매의도에 유의한 영향이 있는 것으로 나타났다. 셋째, 오프라인 집단의 추가분석 결과, 저 집단의 규범적 영향 민감성은 이용 즐거움, 온라인 구전의도 및 구매의도에 유의한 영향을 미치는 것으로 나타났다. 끝으로 온라인 집단의 결과, 저 집단은 규범적 영향 민감성이 구매의도에 유의하지 않는 영향을 나타냈으며, 고 집단은 동료 영향 민감성이 변인간의 관계에서 구조적 영향이 없는 것으로 나타났다. 본 연구 이와 같은 결과를 토대로 기업의 실무적인 방향과 연구의 방향에 대해 논의하였다.

무선형 의료로봇 전자기 구동을 위한 외란 관측기 기반 강인 제어기 개발

이한솔,고영오,김창세 제어로봇시스템학회 2023 제어로봇시스템학회 국내학술대회 논문집 Vol.2023 No.6

전시발표 : E 분야: 목재보존 ; P-61 : 외국산 방의제의 국내적용 가능성 평가

이한솔,황원중,손동원,정진영 韓國木材工學會 2016 한국목재공학회 학술발표논문집 Vol.2016 No.-

실용(Authentic) 자료에 근거한 군사영어 코퍼스에 관한 연구

이한솔,신경식,이장호 육군사관학교 화랑대연구소 2012 한국군사학논집 Vol.68 No.1

This paper argues that a military English corpus based on authentic materials centered around conversation contributes to enhancement of EFL learner's English speaking proficiency. To achieve this goal, transcripts of 26 war movies and 109 episodes of war TV dramas are used to build a corpus. The researchers concentrate on high frequency words to investigate what types of vocabularies are used in military context and how the words are applied with relatively unfamiliar usages or patterns by using Wordsmith program as our corpus analyzing tool. Our analysis displays the three features of high frequency words of this corpus: ① they mainly consist of monosyllabic and disyllabic words; ② they are used as collocations with in variety of prepositions and objectives; and ③ they are distinguished as having unitary meanings and patterns of usages. In conclusion, results from this study indicate that a military English corpus will provide EFL learners with effective ways through which students can obtain knowledge of specific words within the military context and accordingly enhance their English speaking proficiency.

정보보안 투자가 침해사고에 미치는 영향에 대한 실증분석: 정보보안 교육 서비스 투자를 중심으로

이한솔,채상미 한국정보보호학회 2018 정보보호학회논문지 Vol.28 No.1

정보화 사회에서 핵심 가치로 평가받고 있는 자원은 정보 그 자체이다. 이런 이유로 기업의 가치 있는 정보를 노리는 시도가 많아지며 정보보안 사고가 급증하고 있다. 기업에서는 정보보안 사고를 예방하기 위해 다양한 정보보안부문에 투자하고 있으나, 어떤 부문에 대한 투자가 정보보안 사고를 감소시키는 데에 직접적으로 기여하는지는 잘알지 못한 채 투자하고 있다. 기업의 대표적인 정보보안 투자 부문인 제품뿐만 아니라 대표적인 정보보안 서비스 사업으로 각광받고 있는 정보보안 교육 및 훈련, 보안관제 서비스, 그리고 취약점 분석의 투자 효용을 알아보기 위해본 연구를 진행하였다. 한국 인터넷 진흥원의 2014년 정보보호 실태 조사의 원자료를 이용하고, 총 정보보안 사고건수를 종속변수로 두고 음이항분포 회귀분석을 실시한 결과 교육 서비스와 취약점 분석 서비스가 정보보안 사고를줄이는 데에 유의미하게 기여하는 것으로 판단되었다. 이 연구는 학문적으로는 정보보안 경제학을 이론적 배경으로하여 정보보안 투자 부문의 실제 효용을 파악한 연구이며, 실증적으로는 조직에서 한정된 자원을 정보보안 투자에배분할 때 효율적인 의사결정을 하는 데에 지침을 제공할 수 있는 연구이다. Many organizations are threatened by numerous information security attacks which are resulting in information securityincidents. To prevent information security incidents, organizations invest on various information security measures likeinformation security products, monitoring services and security training and educations. However they do not have enoughknowledge about measurable utilities of information security investments. Since there is little studies empirically examiningthe effect of information security investments, this research aims to find out utilities of information security investment. Weespecially focuse on information security service investments. This study examined the data from the survey on informationsecurity for business sector which was conducted by Korean information & security agency. We utilized negative binomialregression model, which is a suitable model for over-dispersed count data. We found out that an investment on informationsecurity education and vulnerability testing have direct impact on reducing information security incidents. This researchacademically contributed to shed light on the utility of information security investments on reducing information security incidents. This research practically contributed to providing information security investment guideline for organizations whichwant to reduce information security incidents efficiently.