• Journal of Contemporary Eastern Asia
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• 제8권2호
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• pp.1-14
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• 2009

• 컴퓨터교육학회논문지
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• 제13권5호
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• pp.1-13
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• 2010

2007년 개정 교육과정의 시행에 따라 새로운 정보 교과서가 2010년부터 중학교 1학년에 적용된 뒤 중등학교로 점차적으로 확대 시행된다. 그러나 정보 교과서 선택을 위한 평가 관련 연구가 미미하며, 특히 중학교 정보 교과서에 대한 선택 기준 개발은 전무한 상태이다. 따라서 본 논문에서는 중학교 정보 교과서 선택 기준의 제안을 연구 목표로 하며, 그 세부적인 연구 내용은 다음과 같다. 첫째, 기존의 교과서 평가 관련 연구들을 일반 교과서 선택 준거, 탐구성에 대한 교과서 분석법, 기존 중등 정보 교과서를 분석한 선행 연구로 나누어 분석한 뒤, 중학교 정보 교과서를 위한 선택 기준을 제안한다. 둘째, 제안된 정보 교과서 선택 기준과 타 평가준거를 사용하여 중학교 1학년 정보 교과서 5종을 비교 분석하였다. 끝으로 본 논문은 중학교 정보 교과서에 대한 선택 기준 제안과 비교 분석을 통해 정보 교과서의 선정에 도움을 주고, 향후 정보 교과서의 평가 연구를 위한 개발에 구체적인 방향을 제시할 수 있을 것으로 기대된다.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2004년도 춘계 학술발표대회 논문집
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• pp.62-63
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• 2004

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2005년도 추계 학술발표대회 논문집
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• pp.94-95
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• 2005

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2005년도 춘계 학술발표대회 논문집
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• pp.12-13
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• 2005

• Journal of information and communication convergence engineering
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• 제21권4호
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• pp.268-280
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• 2023

Several companies have migrated their existing monolithic web applications to microservice architectures. Consequently, research on the identification of microservices from monolithic web applications has been conducted. Meanwhile, the use-case model plays a crucial role in outlining the system's functionalities at a high level of abstraction, and studies have been conducted to identify microservices by utilizing this model. However, previous studies on microservice identification utilizing use-cases did not consider the components executed in the presentation layer. Unlike existing approaches, this paper proposes a technique that considers all three layers of web applications (presentation, business logic, and data access layers). Initially, the components used in the three layers of a web application are extracted by executing all the scenarios that constitute its use-cases. Thereafter, the usage rate of each component is determined for each use-case and the component is allocated to the use-case with the highest rate. Then, each use-case is realized as a microservice. To verify the proposed approach, microservice identification is performed using open-source web applications.

• 정보교육학회논문지
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• 제4권1호
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• pp.12-23
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• 2000

Education using the internet, such as a virtual school and distance education, has been limited to the studies of content and method in learning, It has been less studied to make advantage of internet with regard to school administration, teachers' research, and efficient communication within a school. Therefore, it is suggested to implement groupware which can be used in a school environment. For this purpose, this study attempts to design and implement groupware on that purpose. The main content consists of 7 areas: introduction of the school(including children's room), notice room, working room, room for educational materials, individual information, parents' room, internet journey. The basic tool for a groupware is implemented on Windows NT 4.0 Server and subsequent IIS 2.0. DB management based on SQL Server 6.5 makes it enable to manage various information.

• Journal of Acupuncture Research
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• 제37권1호
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• pp.28-34
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• 2020

This is a systematic review of the clinical use of cupping therapy. Four domestic databases and 2 foreign databases were searched. Studies that reported the cupping pressure used during cupping therapy were included in this study. The types of cupping, cupping site, pressure, and duration of cupping were the main parameters analyzed. A total of 27 studies, including 24 experimental studies were analyzed. There were 12 constant negative pressure (domestic) studies with a range between 60 mmHg and 600 mmHg. There were 5 maximum negative pressure (domestic) studies and the maximum negative pressure was 620 mmHg. Three studies used a maximum negative pressure of 600 mmHg. There were 4 constant negative pressure (foreign) studies with a range between 75 mmHg to 750 mmHg. There were 3 maximum negative pressure (foreign) studies with a maximum pressure of 420 mmHg. The studies differed with regards to the materials used and the amount of pressure applied. Many studies had limited information and therefore generalizability of the results in this review is limited. Further experimental studies are required to establish the correlation between cupping pressure and treatment effects so that cupping therapy can be standardised.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2066-2071
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• 2003

In this paper, we identify the isotropic configurations of an omnidirectional mobile robot with three caster wheels, depending on the selection of actuated joints. First, We obtain the kinematic model of a caster wheeled omnidirectional mobile robot(COMR) without matrix inversion. For a given task velocity, the instantaneous motion of each wheel is decomposed into two orthogonal instantaneous motions of the steering and the rotating joints. Second, with the characteristic length introduced, we derive the isotropy conditions of a COMR having $n({\ge}3)$ actuated joints, which are imposed on two Jacobian matrices, $A{\in}R^{n{\times}3}$ and $B{\in}R^{6{\times}6}$. Under the condition of $B{\propto}I_6$, three caster wheels should have identical structure with the length of the steering link equal to the radius of the wheel. Third, depending on the selection of actuated joints, we derive the conditions for $A^t$ $A{\propto}I_3$ and identify the isotropic configurations of a COMR. All possible actuation sets with different number of actuated joints and different combination of rotating and steering joins are considered.

• Journal of information and communication convergence engineering
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• 제22권2호
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• pp.153-158
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• 2024

This study aims to summarize the effects of Arduino-based educational programs through a meta-analysis. Eleven eligible primary studies were obtained through a systematic literature review and coded accordingly. The results are as follows: The meta-analysis revealed that the overall effect size for all the studies was 0.518. Analysis of the moderator variables indicated statistically significant differences between them. Regarding the learning domains, the results were ranked in descending order of the cognitive and affective domains. Within the cognitive domain, the effect sizes were ranked in descending order as follows: logical thinking, content knowledge, convergence competency, self-efficacy, computational thinking, and creative problem-solving skills. In terms of subject areas, the descending order of effect sizes was agriculture, STEAM, environmental science, practical arts, artificial intelligence, informatics, and computers. Regarding school level, the results were ranked in the following descending order: college, elementary school, middle school, and high school.