• 대한화학회지
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• 제61권4호
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• pp.211-217
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• 2017

The purpose of this study was to examine UK students' use of multimodal representations in science. Students were asked to explain their understandings of the scientific concept and presentation of the multimodal representations in a science Assessing Pupils' Progress (APP) task. Participants of this study were fifty-four Year 7 students taught by the same teacher. Students from one class (27 students) were assigned to the experimental group, and then they received instruction encouraging the using of multimodal representations as evidences to support students' claims. One class (27 students) was assigned to the control group and they received instruction with traditional teaching methods. Both groups performed an APP task for assessment. The samples of APP assessments produced by students both from the experimental and control groups were analyzed using an analysis framework of multimodal representations, embeddedness in evidence and understanding of scientific concepts. Data analysis indicated that the students in the experimental group performed better than that of the control group on embeddedness of multimodal representations in the APP task. In addition, there was a significant difference between the two groups in the evaluation of understand of the scientific concepts.

• 한국컴퓨터정보학회논문지
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• 제16권11호
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• pp.57-65
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• 2011

소프트웨어 재사용과 애자일 방법은 개발 기간의 단축 또는 잦은 요구사항의 변경을 수용하는 방법으로 각각 인식되고 있기 때문에, 이들 기술의 통합에 관한 연구와 관심이 증가하고 있다. 특히, 많은 개발현장에서 애자일 방법의 성공적인 사용 증가에도 불구하고, 애자일 방법에서 더 높은 생산성 향상을 위한 재사용 연구는 부족하였다. 본 연구는 애자일 방법에서의 새로운 유형의 재사용 자산을 식별하고 반복 개발 특성을 이용하여 재사용을 지원하는 태스크 팩토링 기술을 제안하였다. 아울러, 제안된 기술을 비디오 대여 응용에 적용하여 태스크 재사용의 프로토타이핑을 보일 수 있었다.

• International Journal of Advanced Culture Technology
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• 제5권1호
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• pp.83-89
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• 2017

In this paper, we propose an extended method of one-hot Long Short-Term Memory (LSTM) and evaluate the performance on spam filtering task. Most of traditional methods proposed for spam filtering task use word occurrences to represent spam or non-spam messages and all syntactic and semantic information are ignored. Major issue appears when both spam and non-spam messages share many common words and noise words. Therefore, it becomes challenging to the system to filter correct labels between spam and non-spam. Unlike previous studies on information filtering task, instead of using only word occurrence and word context as in probabilistic models, we apply a neural network-based approach to train the system filter for a better performance. In addition to one-hot representation, using term weight with attention mechanism allows classifier to focus on potential words which most likely appear in spam and non-spam collection. As a result, we obtained some improvement over the performances of the previous methods. We find out using region embedding and pooling features on the top of LSTM along with attention mechanism allows system to explore a better document representation for filtering task in general.

• Communications for Statistical Applications and Methods
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• 제17권6호
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• pp.891-898
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• 2010

소프트웨어는 독립적으로 개발된 모듈들을 통합하는 개발과정을 거치며, 통합된 소프트웨어는 가용도, 소프트웨어에 내재된 결함의 제거 수 및 주어진 업무(task)들의 처리능력에 의하여 성능이 평가된다. 본 연구에서는 Lee와 Park (2003)의 마코프 불완전 수리모형을 기반으로 모듈들로 구성된 소프트웨어의 업무처리 능력을 평가할 수 있는 업무의 완전처리확률(completion probability)을 유도하며, 이와함께 개발된 소프트웨어가 출하되는 최적의 시점을 결정하는 방안을 제시하고자 한다.

• 생약학회지
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• 제41권3호
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• pp.196-203
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• 2010

Black sesame (Sesami semen nigrum) has been used to treat dizziness, earnoise, constipation in the traditional Chinese medicine. In the present study, we assessed memory enhancing properties of 70% ethanolic extract of black sesame (EBS70) and its ameliorating activities on learning and memory impairments induced by scopolamine. Drug-induced amnesia was made by scopolamine treatment (1 mg/kg, i.p.). Single EBS70 (200 mg/kg, p.o.) administration significantly enhanced cognitive function and attenuated scopolamine-induced cognitive impairments as determined by the passive avoidance and Y-maze tasks (P<0.05) and also reduced escape-latency on the Morris water maze task (P<0.05). In addition, EBS70 increased BDNF expression in hippocampus 4 h after its administration (P<0.05). These results suggest that EBS70 enhances learning and memory in normal state and attenuates amnesic state caused by cholinergic dysfunction.

• 한국정보시스템학회지:정보시스템연구
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• 제31권2호
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• pp.197-216
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• 2022

Purpose In this study, in order to understand the effects of NTIS users' behavioral scientific behaviors and determinants, an integrated model of the UTAUT(Unified Theory of Acceptance and Use of Technology) model and TTF(Task-Technology Fit) model, which are frequently used MIS field, was presented and empirical analysis was conducted. Design/methodology/approach In this study, an online survey was conducted on researchers from organizations carrying out national R&D projects, institutions, universities, and dedicated management institutions and the collected data verified hypotheses established using the SPSS 25.0 statistical package and structural equation model using AMOS. Findings The results showed that NTIS users' business activities had a positive(+) effect on task-technology fit and task-technology fit had a positive(+) effect on performance expectation, effort expectation, and continuous intention-to-use intention. In addition, the performance expectation, effort expectation, and promotion conditions presented in research model had a positive(+) effect on the continuous intention-to-use. The research results derived through this study are expected to contribute substantially to subsequent research in the field related to information sharing platforms.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제23권7호
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• pp.452-457
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• 2017

리눅스는 범용 운영체제로써 다양한 스케줄러를 지원하며, 서로 다른 스케줄러가 런타임 시에 혼재하는 상황을 허용한다. 또한, 리눅스는 Control Group(cgroup)을 활용하여 데드라인 스케줄러(SCHED_DEADLINE)를 제외한 실시간(SCHED_FIFO, SCHED_RR) 및 비실시간(SCHED_NORMAL) 스케줄러 정책을 따르는 태스크들에 대해서 그룹 단위의 CPU 자원 예약을 지원한다. cgroup은 스케줄링 가능성 분석을 수행하여 예약된 CPU 자원을 최대한 보장하려고 한다. 하지만 현재 리눅스의 실시간 태스크 그룹에 대한 스케줄링 가능성 분석은 데드라인 태스크와 실시간 태스크를 구분하지 못하는 문제에 의해서 두 스케줄러를 사용하는 태스크가 혼재할 때 실시간 태스크 그룹의 자원예약을 거부하는 경우가 발생한다. 본 논문은 리눅스 cgroup의 실시간 태스크 그룹에 대한 스케줄링 가능성 분석에서 발생하는 문제를 분석하고, 이를 해결하는 커널 패치를 제안한다.

• 대한물리의학회지
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• 제14권4호
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• pp.71-80
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• 2019

PURPOSE: This study examined whether a task-oriented training program is an effective intervention to improve the body function, activity, and participation of children with cerebral palsy (CP). METHODS: Ten children with CP (7-13 years old) performed a task-oriented training program for eight weeks (three sessions per week, 30 minutes each). The taskoriented training program consisted of eight activities. The subjects' body function was assessed using a handheld dynamometer, goniometer, Modified Ashworth Scale (MAS), Balance Performance Monitor (BPM), and the Bruininks-Oseretsky Test of Motor Proficiency (BOTMP). The subjects' activity and participation were assessed using the Gross Motor Function Measure (GMFM) and Timed Up and Go (TUG) test. RESULTS: Task-oriented training provided significant improvements in the subjects' body function. The subjects improved the bilateral isometric muscle strength of the hip flexors, extensors and abductors, knee flexors and extensors, and ankle dorsi- and plantar flexors (p<.05). Bilateral passive hip flexion, abduction, and external rotation, knee flexion, and ankle dorsi- and plantar flexion were also increased (p<.05). In addition, the MAS score of the hip adductors decreased (p<.05) and the BOTMP score increased after training (p<.05). The subjects' activity and participation also improved significantly after training, increasing the GMFM score (p<.05) and decreasing the TUG score (p<.05). On the other hand, the BPM score did not change after training. CONCLUSION: This study suggests that a task-oriented training program can be an effective intervention to improve the body function, activity, and participation for children with CP.

• Physical Therapy Rehabilitation Science
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• 제5권3호
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• pp.143-148
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• 2016

Objective: This study aimed to quantify one of the useful upper extremity movements to evaluate motor control abilities between the groups of people with mild and moderate arm impairments performing a door handling task. Design: Cross-sectional study. Methods: Twenty-one healthy participants and twenty-one persons with chronic stroke (9 mild stroke and 12 moderate stroke) were recruited for this study. Stroke participants were divided into 2 groups based on Fugle-Meyer Assessment scores of 58-65 (mild arm) and 38-57 (moderate arm). All they performed door handling task including the pronation and supination phases 3 times. We measured some movement factors which were reaction time, movement time, hand of peak velocity, hand of movement units to perform door handling task using the three-dimensional motion analysis. Results: The majority of kinematic variables showed significant differences among study groups (p<0.05). The reaction time, total and phase of movement time, hand of peak velocity, the number of movement units discriminated between healthy participants and persons with moderate upper limb stroke (p<0.05). In addition, reaction time, total and phase of movement time, the number of movement units discriminated between those with moderate and mild upper limbs of stroke patients (p<0.05). Conclusions: Three-dimensional kinematic motion analysis in this study was a useful tool for assessing the upper extremity function in different subgroups of people with stroke during the door handling task. These kinematic variables may help clinicians understand the arm movements in door handling task and consist of discriminative therapeutic interventions for stroke patients on upper extremity rehabilitation.

• 정보처리학회논문지B
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• 제11B권5호
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• pp.597-602
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• 2004

최근 웹이나 가상환경에서는 아바타의 활용이 증가하고 있으나, 아바타의 행위를 사용자가 직접 제어하는 수준의 서비스는 이루어지지 못하고 있다. 또한 기존에 제공되었던 언어들에는 제어에 필요한 복잡한 세부 정보들이 많이 포함되어 있어서 사용자가 작성하기에 까다로움이 많았으며, 작성한 언어를 다른 작업 도메인에 적용하고자 할 때에도 언어를 수정하거나 재 작성해야하는 번거로움이 있었다. 따라서 본 논문에서는 아바타의 행위를 간단히 정의하기 위해, 작업수준별 아바타의 행위를 작성 할 수 있는 “작업 수준의 행위 표현 언어”와 동작에 관련된 세부적인 데이터를 작성 할 수 있는 “동작 표현 언어”로 각각 정의하였다. 또한 시스템 내에 “인터프리터”를 두어 동작 표현 언어를 자동으로 생성 할 수 있도록 함으로써, 사용자가 행위 표현 언어만으로 아바타의 행위를 쉽게 제어 할 수 있는 시스템을 구성하였다. 이러한 내용을 사이버 강의에 적용해 보고, 정의한 작업 수준의 행위 표현 언어를 기존 언어들과 비교하여 아바타의 행위를 얼마나 간단히 표현할 수 있는지 검토하였다.