• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2020년도 가을 학술논문 발표대회
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• pp.177-178
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• 2020

In the construction industry, expectations for the Precast Concrete(PC) construction method are rising due to demands for high quality and productivity and social and environmental issues. However, although technical problems that occurred in the early stages of technology introduction have been solved, research related to proper construction management for PC construction methods has been relatively neglected and the advantages of PC construction methods have not been fully utilized. In this study, each group involved in PC works was surveyed to identify important management tasks affecting productivity of PC works to improve PC contruction management system. Based on factor analysis, 22 tasks were calssified into 5 management groups. The results of this study will be used to present a framework for the application of automation and information technology to improve the productivity of PC works.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2021년도 추계학술발표대회
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• pp.128-130
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• 2021

Smart cities collect data from thousands of IoT-based sensor devices for intelligent application-based services. Centralized cloud servers support application tasks with higher computation resources but introduce network latency. Fog layer-based data centers bring data processing at the edge, but fewer available computation resources and poor task allocation strategy prevent real-time data analysis. In this paper, tasks generated from devices are distributed as high resource and low resource intensity tasks. The novelty of this research lies in deploying a virtual node assigned to each cluster of IoT sensor machines serving a joint application. The node allocates tasks based on the task intensity to either cloud-computing or fog computing resources. The proposed Task Allocation Strategy provides seamless allocation of jobs based on process requirements.

• 대한지구과학교육학회지
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• 제12권3호
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• pp.261-273
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• 2019

이 연구의 목적은 초등학교 과학 교과용 도서에 나타난 과학 글쓰기 과제를 교과용 도서에 제시된 형태와 글쓰기 구성 요소 분석틀을 이용하여 분석하고자 하였다. 이 연구를 위해 2007, 2009, 2015 개정 초등학교 과학 교과서와 실험관찰에 나타난 과학 글쓰기 과제를 분석하였다. 연구 결과를 살펴보면, 과학 글쓰기 과제의 형태를 분석한 결과 2007 개정에서 2015 개정으로 교육과정을 거치면서 과학 글쓰기가 제시된 교과용 도서가 줄어들고, 과제가 명시되지 않은 형태로 변화하였다. 그리고 2009 개정 5~6학년군 과학 글쓰기 과제가 글과 그림으로 제시되어 가장 바람직한 형태로 나타났다. 과학 글쓰기 과제를 글쓰기 구성 요소 분석틀을 이용해 분석한 결과 교육과정과 학년군별로 차이가 있었으나 일부 하위 요소에 치중되는 경향을 보였다. 그러나 2007 개정 5~6학년군에서 가장 다양한 구성 요소가 반영된 과학 글쓰기가 제시되고 있었다.

• International Journal of Control, Automation, and Systems
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• 제2권2호
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• pp.228-237
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• 2004

This paper provides a motion analysis of soft-fingertip object manipulation tasks by presenting a dynamic model of multi-fingered object manipulations with soft fingertips. It is fundamentally observed that soft fingertips employed in a multi-fingered hand generate some deformation effects during the manipulation process and also that those effects are closely related to the behavior of the manipulated object. In order to analyze the motion of using soft fingertips, a dynamic manipulation control scheme is presented. Simulation and experimental results demonstrate the motion of soft-fingertips applied in object manipulating tasks and are further used to discuss the characteristics of soft-fingertip motions.

• 가족자원경영과 정책
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• 제2권2호
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• pp.83-92
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• 1998

The purpose of this study is to review the concept of home-based work, introduce the activities of American home economists on home-based work and propose the tasks of family resource management for home-based work. Home-based works is defined as the work which generates income at home and classified 3 types: home-based business, employed home-based work and homework. The activities of American scholars are reviewed focusing on the Coorperative Regional Research Project, NE-167, entitled "At-Home Income Generation: Impact on Management, Productivity and Stability in Rural/Urban Families"and the participants of the project. Finally the tasks of family resource management are pursued in terms of research, education and service.d service.

• 영어어문교육
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• 제13권2호
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• pp.91-108
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• 2007

This study investigates learners' perception on their engagement in rating activities in the EFL essay-writing context. The current study aims to address the answers to the following research questions: 1) What attitude do students show about their participation in the rating tasks? and 2) which of three aspects (e.g. the degree of rating experience, the exposure to English composition instruction and learning, and proficiency level) significantly influences learners' rating activities? 104 EFL learners participated in the rater training session. After participants finished rater training session, they rated three sample essays and peer essays using the given scoring guide. Based on the analysis of survey responses that students made, students showed positive attitude toward their engagement in rating tasks. For research question 2, only L2 writing proficiency seriously affected students' perception on the rating tasks. Advanced level of subjects did not feel stressed by a grade of peers as low level of subjects did. They were also critical about the benefits of self- and peer-assessment, suggesting that a peer's feedback on their own essay was not so useful and that a self-rating does not fully help learners identify their writing proficiency.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2009년도 학술대회
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• pp.938-943
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• 2009

본 연구는 모바일폰 사용자의 멀티태스킹 니즈를 중심으로 태스크간의 이동을 유추함으로써, 각 태스크 별로 멀티태스킹이 지원되어야 하는 최소의 태스크 집단을 보여주고자 진행된, 멀티태스킹을 위한 모바일폰 인터페이스 설계의 기초 연구이다. 사용자가 여러 가지 태스크가 일어나는 상황을 예측한다는 것은 어려운 일이기 때문에, 먼저 모바일폰의 기능에서 도출된 16 가지 주요 태스크 별로 일대일로 대응되는 멀티태스킹 니즈를 조사하였다. 하나의 태스크에서 멀티태스킹 니즈가 있는 태스크가 도출되며, 다시 그 태스크에 나타난 멀티태스킹 니즈를 찾아가는 유추의 방식으로 태스크 간의 이동을 간략화하여 멀티태스킹 시나리오 다이어그램을 도출하였다. 여러 개의 태스크가 동시에 일어날 때 멀티태스킹이 어떠한 과정을 통하여 나타나는 가를 체계화하는 이러한 과정은, 향후 멀티태스킹 맥락을 고려한 사용자 중심 인터페이스 개발에 적용할 수 있을 것으로 기대된다.

• 지역사회간호학회지
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• 제16권3호
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• pp.351-359
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• 2005

Purpose: To find the factors of subjective musculoskeletal symptoms associated with the general characteristics and tasks of operating room nurses (OR nurses) and then to use the factors as basic information for preventing and managing musculoskeletal symptoms in OR nurses. Method: This study was an exploratory research. Data were collected using a self-report questionnaire from OR nurses working at 8 polyclinics in Korea during the period from July 26 2004 to August 19 2004. The questionnaire contains 7 questions on general characteristics and 18 questions on tasks in the operating room. Result: 187 (75.1%) nurses said they 'had' subjective musculoskeletal symptoms. Statistically significant differences were observed according to clinical career, career as an OR nurse, skillfulness, satisfaction with tasks in the operating room, perception on suitable treatment, care of symptoms by the hospital. weight of hospital linen and weight of a basic operation set (p<.05). Conclusion: Musculoskeletal symptoms complained of by OR nurses were significant. This may cause difficulties in nursing tasks in the operating room. Thus, various arrangements should be made for OR nurse with subjective musculoskeletal symptoms at the early stage.

• Architectural research
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• 제15권1호
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• pp.9-15
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• 2013

Effects of physical attributes of workstation enclosures on the performance of office workers with different difficult levels of office tasks and moods are presented. Performance scores in complex tasks were expected to increase with greater workstation enclosures while those in simple tasks would be the same. Mood ratings were expected to be higher in lower workstation enclosures. Performance of 102 college students on ambient office sounds (45 dBA) with office tasks were measured for 100 minutes under three different workplace enclosures: (1) four foot partitions on two sides; (2) six foot partitions on three sides; and (3) a fully enclosed workstation with eight foot partitions. The tasks were to memorize a paragraph with 130 words (complex task) and to search phone numbers (simple task). The complex task performance in the fully enclosed workstation was increased compared to that in the workstation with four foot partitions (p < 0.001) and to that in the workstation with six foot partitions (p < 0.05). However, occupants in the fully enclosed workstation with office sounds without speech generally gave higher mood ratings. It indicates that closed individual offices may offer important contributions to collaborative work as well as individual productivity. These findings would help design community revise open plan design to increase collaboration among office workers.

• 제어로봇시스템학회논문지
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• 제6권9호
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• pp.777-785
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• 2000

This paper provides a guideline for the determination of compliance characteristics and the proper location of the compliance center in typical peg-in-hole and peg-out-hole tasks using hands. We first observe the fact that some of coupling stiffness elements cannot be planned arbitrarily. The given peg-in/out-hole tasks are classified into two contact styles. Then, we analyze concluded of the operational siffness matrix, which achieve the give peg-in/out-hole tasks effectively for each case. It is concluded that the location of the compliance center on the peg and the coupling stiffness element existing between the translational and the rotational direction play ompliance on the peg and the coupling siffness element existing between the translational and the rotational direction play important roles for successful peg-in/out-hole tasks. The analytic results verified through simulations.