Gyu Hyun Kwon

Hanyang University · Graduate School of Technical Management (MOT)

In response to the many changes and uncertainties facing the future, sensing opportunities for innovation is an important agenda. Formulating strategies for sensing opportunities in innovation requires an ecosystem perspective that integrates the science, technology, and business (S-T-B) fields that shape the innovation ecosystem. This study was to...

With the COVID-19 pandemic, the importance of home health care to manage and monitor one’s health status in a home environment became more crucial than ever. This change raised the need for smart home health care services (SHHSs) and their extension to everyday life. However, the factors influencing the acceptance behavior of SHHSs have been inadeq...

BACKGROUND In neuropsychology, fully-immersive virtual reality has been spotlighted as a promising tool. It is considered that not only overcome the existing limitation of neuropsychological tests but also appropriate for treating executive functions within daily living tasks due to its high ecological validity. While fully-immersive virtual realit...

Background In neuropsychology, fully immersive virtual reality (VR) has been spotlighted as a promising tool. It is considered that VR not only overcomes the existing limitation of neuropsychological tests but is also appropriate for treating executive functions (EFs) within activities of daily living (ADL) due to its high ecological validity. Whil...

BACKGROUND In neuropsychology, fully-immersive virtual reality has been spotlighted as a promising tool. It is considered that not only overcome existing limitation of neuropsychological tests, but also appropriate for treating executive functions within daily living tasks due to its high ecological validity. While fully-immersive virtual reality o...

Background: With the rapid development of information and communication technologies, smart homes are being investigated as effective solutions for home health care. The increasing academic attention on smart home health care has primarily been on the development and application of smart home technologies. However, comprehensive studies examining t...

Objective: This study aims to measure working memory and decision-making ability in the enhanced virtual mall environment based on the embodied cognition theory. Background: Various technologies have been emerged to allow more precise measurements of patients" behavioral data. Therefore, we have developed the Virtual Mall environments based on the...

Sensorimotor rhythm (SMR)-based brain–computer interface (BCI) controlled Functional Electrical Stimulation (FES) has gained importance in recent years for the rehabilitation of motor deficits. However, there still remain many research questions to be addressed, such as unstructured Motor Imagery (MI) training procedures; a lack of methods to class...

We previously proposed a conceptual framework of a smart servicescape wheel (SSW) in order to delineate the broad continuum of environmental constraints in smart homes for health care services (SHHSs) [1]. This framework was established through expert analysis and an extensive literature review, and its structure and applicability must be validated...

Objective The purpose of this study is to view research trends on surgery with mixed reality, and present the intellectual structure using bibliometric network analysis for the period 2000-2019. Methods Analyses are implemented in the following four steps: (1) literature dataset acquisition from article database (Web of Science, Scopus, PubMed, an...

Operating Room (OR) managers frequently encounter uncertainties related to real-time scheduling, especially on the day of surgery. It is necessary to enable earlier identification of uncertainties occurring in the perioperative environment. This study aims to propose a framework for resilient surgical scheduling by identifying uncertainty factors a...

BACKGROUND With the rapid development of information and communication technologies, smart homes are being investigated as effective solutions for home health care. The increasing academic attention on smart home healthcare has primarily been on the development and application of smart home technologies. However, comprehensive studies examining the...

Background. While numerous studies have investigated changes in brain activation after stroke, limited information exists on the association between functional brain networks and lesion location in stroke patients. Methods. We compared the characteristics of brain networks among patients with cortico-subcortical lesions (n = 5), subcortical lesions...

The dramatic advancement of Internet of Things technology and smart services has encouraged the integration of smart home and healthcare service. Despite various research studies on the technology of smart home healthcare services, it is essential to approach those services from the service experience perspective. Moreover, it would be significant...

Aim: The purpose of this study is to demonstrate the impact of intelligent healthscape quality (IHQ) on job outcomes and job satisfaction via the pleasure feeling of nurses, a positive emotion towards the work environment. The moderating effect of innovativeness as a personal trait is also investigated. Design: A descriptive, cross-sectional, su...

Integrated Nursing Care Service has been conducted in Korea since 2013, and there are several suggestions to enhance the medical staff’s efficiency. This research aims to suggest a way to develop a model of IHQ to delineate ecological constraints of robotic environment. Observation study was implemented and video analyses were conducted. To support...

Background: Smart homes are considered effective solutions for home health care for the elderly, as smart home technologies can reduce care costs and improve elderly residents’ independence. To develop a greater understanding of smart homes for health care services (SHHSs), this study accentuated the necessity of ecological approaches with an empha...

4차 산업혁명의 시대가 도래함에 따라 VR, AR 기술과 로봇 수술이 결합된 다양한 의료 기술이 수술실을 변화시키고 있다. 대표적인 로봇 수술 기기인 다빈치(daVinci)는 기존 복강경 수술과 달리 특수 카메라 렌즈와 손 떨림 보정 그리고 균일한 힘 전달을 통해 안정적인 수술을 지원할 수 있는 혁신적인 성과를 가시화하였지만, 실제 이를 뒷받침할 수술용 의료 정보 시스템에 대한 연구는 아직 활발하게 이루어지지 않고 있다. 따라서 본 연구에서는 집도의의 수술 과정을 지원해줄 수 있는 수술용 의료 정보 시스템의 기능 구성 요소를 도출하는 것을 목적으로 한다. 이를 위해 사용자 관찰 및 인터뷰를 진행하였으며 이를 바탕으로 각...

Attention deficits due to auditory distractibility are pervasive among patients with acquired brain injury (ABI). It remains unclear, however, whether attention deficits following ABI specific to auditory modality are associated with altered haemodynamic responses. Here, we examined cerebral haemodynamic changes using functional near-infrared spect...

BACKGROUND Smart homes are considered effective solutions for home healthcare for the elderly, as smart home technologies can reduce care costs and improve elderly residents’ independence. To develop a greater understanding of smart home for healthcare services (SHHS), this study accentuates the necessity of ecological approaches with emphasis on e...

Due to the growing importance of professional virtual communities (PVCs) to share professional knowledge in practice, this research proposes an integrated success factor model of PVCs encompassing (1) the componential aspect of a VC system from the operator’s perspective, (2) the knowledge-sharing aspect of a professional community from the members...

Healthcare facilities, where the newest medical technology based services are implemented by multiple stakeholders should be considered with a different point of view from other types of service buildings. However, there has been little effort to suggest the specific characteristics of advanced (technology-enhanced) healthcare facilities and moreov...

The dramatic advancement of Internet of Things technology and smart services has encouraged the integration of smart home and healthcare service. Despite various researches on the technology of smart home healthcare services, it is essential to approach those services from the service experience perspective. Moreover, it would be significant to con...

Ever since Bitner defined the term “servicescape” as the physical environment in which the service is assembled, several scholars have attempted to better understand the impact of the built environment in the context of different service settings. While servicescape is a topic of increasing academic interest among scholars and practitioners, most s...

간호·간병통합서비스 시행 이후, 확장된 간호사 업무 영역과 작업 환경에 따른 효율적인 업무 수행을 위한 정보 전달 수단이 필요하다. 따라서 본 연구는 간호·간병통합서비스가 시행 병동의 상황보드의 설계를 위한 기능 도출을 위해 간호·간병통합서비스 병동 간호사와 일반 병동 간호사를 대상으로 FGI 인터뷰를 진행하였다. 인터뷰한 데이터를 바탕으로 환자안전관리 업무 영역에서의 현재의 업무 처리 방식과 업무 환경을 비교 분석하여 개선이 필요한 상황인식(SA)요소와 정보를 추출하였고, 환자파악, 환자안전모니터링, 예방간호 영역을 중심적으로 특징적 기능을 정리했다. 정리된 GUI 디자인 기능은 사용성 평가를 통해 기능검증으로 이어질...

The rapid development of IoT technology has accelerated the growth of smart services. Despite the proliferation of smart services, academic research is still in its early stage particularly in terms of service experience and service design. Concerning a service experience viewpoint, it is essential to consider the context and environment of smart s...

As the local manufacturing industry has entered a phase of stagnation, service and product design based on user experience has been highlighted as an alternative for the innovation. However, SMEs(Small and Medium-sized Enterprises) are still struggling to overcome the current crisis. One of the reasons is that SMEs do not have enough contact points...

What is the most significant criteria when you design a healthcare robot? Lots of robots for healthcare environments are being developed, however few of them have succeeded in the real field. Therefore, we tried to present a new perspective to approach this problem. In this paper, we propose a framework that verifies usability by interpreting the r...

It is expected that the integrated control service of the public sector will be increased for the safety of citizens in the future. Therefore, In this study, we analyzed the classification of CCTV control center and the characteristics of interior design. The survey was conducted at eight control centers in Seoul that were constructed since 2007 an...

중소기업과 UX 전문가 간 협업 지원 환경 구축의 필요성에 따라, 전문가와 수요 기업을 대상으로 지식 마켓, 매칭 지원, 협업 프로젝트 관리 지원 서비스를 제공하는 온라인 플랫폼이 개발 중이다. 본 연구는 이 플랫폼 구축 사업의 초기 단계에서 온라인 전문 커뮤니티의 성공적 개발을 위해 고려해야 할 가치 속성 도출을 목표로 한다. 온라인 커뮤니티의 성공요인에 대해 커뮤니티 유형 및 수명 주기와 결부하여 기존 연구가 있었지만 일반적인 관점을 나타내는 한계가 있었다. 따라서 본 플랫폼 구축에 실제적으로 고려할 가치 추출을 위해 이해당사자들 대상으로 이슈 발상 워크샵, 기능 분류 워크샵, 가치 추출 워크샵을 순차적으로 시행하였...

본 연구에서는 재난신고 접수 상황요원의 업무 특징을 분석한다. 특히 신고전화 데이터 분석과 업무 프로토콜에서는 발견할 수 없는 실제 업무환경에서의 업무 특징을 도출하기 위해 정성적 인터뷰를 진행하여 상황요원의 의사결정 특징을 도출하였고, 상황요원의 업무 환경을 개선할 수 있는 시사점을 제공한다.

의료업계는 정보통신기술과 융합과학기술의 발전을 통해 스마트헬스케어서비스를 제공하고 있으며 이러한 서비스를 지원하는 환경은 환자의 안전한 입원생활 뿐 아니라 의료종사자의 효율적인 업무수행에도 도움을 주어야 한다. 본 연구에서는 의료 종사자의 관점에서 효율적인 업무수행을 위한 스마트 헬스케어 환경을 구성하는 지표를 개발하고자 한다. 이를 위해 선행연구를 분석하여 지표를 구성한 후 일반병원과 스마트헬스케어 서비스를 제공하는 병원 종사자를 대상으로 설문조사와 인터뷰를 실시하여 지표의 중요도를 비교하여 타당성을 검증하였다. 연구결과, 스마트헬스케어 환경을 평가하기 위한 지표는 안전성, 공조환경, 기능성, 사회성, 기술성의 다섯...

In this research, we assess a set of optimal user interface parameters for a dual-sided transparent display in a collaborative working environment. To provide an experiment setup, we develop a prototype that simulates a dual-sided transparent display using two conventional displays and associated simulation software. The user interface parameters c...

Brain activation differs according to lesion location in functional magnetic resonance imaging (fMRI) studies, but lesion location-dependent electroencephalographic (EEG) alterations are unclear. Because of the increasing use of EEG-based brain-computer-interface rehabilitation, we examined lesion location-dependent EEG patterns in patients with st...

Several researchers have analyzed brain activities by investigating brain networks. However, there is a lack of the research on the temporal characteristics of the brain network during a stroke by EEG and the comparative studies between motor execution and imagery, which became known to have similar motor functions and pathways. In this study, we p...

Purpose: In brain-computer interfaces (BCIs), electrical brain signals during motor imagery are utilized as commands connecting the brain to a computer. To use BCI in patients with stroke, unique brain signal changes should be characterized during motor imagery process. This study aimed to examine the trial-dependent motor-imagery-related activiti...

We suggest “User-Friendly” bending methods applied in a suitable context to flexible displays by a comparative analysis of touch interaction (TI). To determine appropriate method, we selected video and eBook applications for our experiment tasks. In the experiment, participants executed application commands through touch or bending interaction (BI)...

Current surgical scheduling system has difficulties to handle unpredictable events or uncertainties. Source of uncertainties may come from the patient or the surgery itself, where several cases require immediate changes in data, such as when surgery delays or cancellation occurs on the same day. The study aimed to model the uncertainties for managi...

This paper focuses on designing an affective user interface for public transparent displays in a shop context. In order to maintain harmonious view and satisfactory experience, the relationship between the information and transparency needs to be considered. Therefore, in this paper, we investigate different levels of transparency for determining t...

This paper focuses on designing an affective user interface for public transparent displays in a shop context. In order to maintain harmonious view and satisfactory experience, the relationship between the information and transparency needs to be considered. Therefore, in this paper, we investigate different levels of transparency for determining t...

This study explores the contextual transparency of information presented on public transparent user interfaces through the maintenance of adequate legibility. To address this issue, we investigate the relationship between the information and transparency in a shop context. In this paper, we present an experiment which examines the effects of transp...

We investigated a correlation between electroencephalography (EEG) power and user satisfaction about haptic sensation. EEG power in alpha, delta, and high beta band showed a significant correlation with haptic satisfaction, especially in the early period. Our results show the feasibility of a novel metric for UI design of consumer electronics.

We propose a novel method for monitoring cognitive engagement in stroke patients during motor rehabilitation. Active engagement reflects implicit motivation and can enhance motor recovery. In this study, we used EEG to assess cognitive engagement in 11 chronic stroke patients while they executed active and passive motor tasks involving grasping and...

This study examined characteristics of the brain networks related to upper limb grasp movements. EEG signal of 4 patients with chronic stroke were analyzed during different motor tasks. We compared the brain networks involved in the Active and Motor Imagery tasks by using the centrality and small-worldness (SW). There was a statistically significan...

Background: In a brain-computer interface for stroke rehabilitation, motor imagery is a preferred means for providing a gateway to an effector action or behavior. However, stroke patients often exhibit failure to comply with motor imagery, and therefore their motor imagery performance is highly variable. Objective: We sought to identify motor co...

This paper presents a brain-machine interface (BMI)-based motor rehabilitation system for detecting the correct onset-time of motor intention by Microsoft Kinect™. BMI-based motor rehabilitation without time delay is a key challenge due to muscle spasticity of patient for detecting the motor intention in a real-time rehabilitation system. To circum...

Transferring experts' surgical procedure knowledge is required to improve novices' surgical skill in laparoscopic environment. As surgeons have different level of expertise, this differentiation becomes one of the obstacles to the construction of novices' knowledge comprehension by utilizing experts' knowledge. To overcome this problem, we decompos...

The operating room as part of the surgery department in the hospital spends significant operation cost of the whole organization, and to maximizing its occupancy rate is needed to optimize the operation cost. Thus, efficient and effective scheduling system is needed. The authors suggest that a flexible scheduling framework and communication between...

This paper proposes a robotic hand rehabilitation device for grasp training. The device is designed for stroke patients to train and recover their hand grasp function in order to undertake activities of daily living (ADL). The device consists of a control unit, two small actuators, an infrared (IR) sensor, and pressure sensors in the grasp handle....

The authors introduce a computer-based cognitive assessment tool and two different types of training systems. CoCoMO is a new computer based cognitive assessment tool for middle-aged and old people in South Korea. CoCoTA is a computer-based cognitive training tool considering cultural aspects. E-CoRe is a new cognitive training platform in order to...

The authors introduce a computer-based cognitive assessment tool and two different types of training systems. CoCoMO is a new computer based cognitive assessment tool for middle-aged and old people in South Korea. CoCoTA is a computer-based cognitive training tool considering cultural aspects. E-CoRe is a new cognitive training platform in order to...

A brain-computer interface can be useful for improving the effectiveness of a robot-assisted motor rehabilitation system by allowing it to operate based on user intention. This requires a reliable method for detecting the intention of movement. We propose an algorithm that minimizes the false alarm rate while maintaining substantial detection accur...

As humans have different levels of expertise, this differentiation becomes one of the obstacles to the construction of knowledge comprehension by exchanging knowledge. To overcome this problem, we decompose experts' knowledge presentation while aiming to build knowledge comprehension in novice agents using concept maps as a knowledge representation...

It is well established that motor action/imagery provokes an event-related desynchronization (ERD) response at specific brain areas with specific frequency ranges, typically the sensory motor rhythm and beta bands. However, there are individual differences in both brain areas and frequency ranges which can be used to identify ERD. This often result...

This paper presents a novel cognitive rehabilitation system with a tangible tabletop interface allowing the users to perform cognitive tasks intuitively by their hands. The system consists of a tabletop display with multi-touch function and several tangible objects working on the tabletop interface. We named the system E-CORE (Embodied COgnitive RE...

We investigated neural activity from electroencephalography (EEG) during the use of a haptic-based hand rehabilitation device. While healthy participants (right-handed) performed a series of hand supination/pronation tasks, EEG signals of the participants were measured and compared across different tasks such as motor imagery (MI task), passive mov...

Emergency communication systems (ECS) are a key element in collaborations among different public safety organizations. The need for interoperability in emergency communication systems has hastened the development of interoperable communication technology that is an enabling technology to automatically identify environmental variables including appr...

In this work, we implemented a localized collective intelligence tool called the Tree of Knowledge that represents the on-going knowledge activities in a building. The Tree of Knowledge can increase the awareness of who knows what in the building and trigger more face-to-face interactions and collaborations. We pointed out the importance of localiz...

Complex integration is required for various first responders (fire, police, medical, military) who use organizational protocols that differ. Technical communication systems are the foundation of effective emergency management and should be designed for usability and interoperability. A potential technology solution to these challenges is public saf...

The goal of this research is to understand the concept of police communication environments related to interoperable issues. Interoperability is critical to both inter- and intra- organizational communication. Especially in the emergency operations with multiple groups at the same place, the importance of interoperability has been much appreciated....

Motivation -- To improve the current practice of scenario-based usability evaluation by suggesting a new method for generating more comprehensive scenarios and using the scenarios more easily and systematically. Research approach -- Work domain analysis (WDA) concept in cognitive work analysis (CWA) framework was employed to develop a method for id...

In this report, we describe the work done in a project that explored the human information processing aspects of a personal memex (a memex to organize personal information). In the project, we considered the use of the personal memex, focusing on information recall, by three populations: people with Mild Cognitive Impairment, those diagnosed with M...

In this paper, we discuss re-finding personal information from a human information processing perspective. We describe the design of a prototype that explored the human information processing aspects of a personal memex (a memex to organize personal information). In the project, we considered the use of the personal memex, focusing on information r...

It is very natural for us to express our emotions to friends or family at any time. This paper shows how emotional interface can enhance interpersonal communication in human relationships. We present the notion of an "Emoti-Ring," which enables people to share their emotional status with someone they care about in other places. Combining a social n...