• 대한물리의학회지
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• 제8권3호
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• pp.289-294
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• 2013

PURPOSE: The purpose of this study was to examine differences in erect spinae activities at different height of table during ultrasound therapy in order to propose a optimum work environment. METHODS: Twenty five healthy adult males and females volunteered to participate in this study. EMG signals of both erector spinae(T10, T12, L2, L4) were recorded throught the surface electromyography system at different height of table(45cm, 56.2cm, 67.5cm) during ultrasound therapy work. RESULTS: The higher table heights was, the lower %RVC of the T10, T12, L2, L4 erect spinae at both sides. The left and right T10, T12 and the left L4 showed significant differences. The lower the spinal level was, the higher %RVC of both erect spinae at 45cm, 56.2cm, 67.5cm. The left erect spinae at 56.2cm, right erect spinae at 45cm, 67.5cm showed significant differences. CONCLUSION: The muscle activities of both erect spinae decreased at higher table height and increased lower spinal level. We identified lower table height are risk factor of spine work related musculoskeletal disorders.

• 한국의류산업학회지
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• 제24권4호
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• pp.372-385
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• 2022

In this study, the patterns expressed on nineteenth-century blue and white porcelain among Joseon white porcelain were selected as the material for the development of the car seat fabric design. It was intended to be applied to car seat design by incorporating Korea's own traditional patterns to fit modern sensibility. First, seven pieces of nineteenth-century blue and white porcelain were selected through the literature, and motifs were produced using adobe illustrator, a computer graphic program. Seven car seat fabric designs were developed according to the construction method and development method of the produced motif. Work 1 was designed to elicit a soft and feminine atmosphere using the peony pattern shown in Table 1-1. Work 2 aimed to express a luxurious atmosphere using the image of the mountain expressed in Table 1-2 as a design material. Works 3 was designed by freely arranging the letters of luck expressed in Table 1-3 to form a free and dynamic image. Work 4 was intended to express a stable and rhythmic atmosphere by horizontally arranging the images of the gently curved wings, tail, and rhythmical tail feathers of the phoenix expressed in Table 1-4. Work 5 was designed in a vertical arrangement using the patterns and silhouettes of the tiger's back expressed in Table 1-5. Work 6 was designed using the wave pattern expressed in Table 1-6 to replicate the rhythmic atmosphere. Work 7 was designed using the images of rocks, waves, and the sun in Table 1-7 to express a calm and antique atmosphere.

• 한국인구학
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• 제29권3호
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• pp.51-72
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• 2006

우리나라의 노동생명표 대부분은 Wolfbein & Wool의 전통적 방법에 의해 작성되고 있다. 그러나 여성의 경제활동참가율이 M자 형태를 보이므로, 이러한 방법은 여성의 노동기대여명 측정에 부적합하다. 한편. 증감 노동생명표는 여성에게도 동일하게 적용될 수 있으나, 개인의 경제활동 상태 전이에 대한 자료가 필요하다. 본 연구는 Garfinkle과 Pollard et al.의 노동생명표가 Hoem, Schoen & Woodrow에 의해 개발되고, 미국 노동통계국이 채택하고 있는 증감 노동생명표와 본질적으로 동일하다는 점을 보여주고 있다. 또한 이들의 노동생명표는 전통적인 방법에 의한 생명표와 마찬가지로 일반적인 증감노동생명표처럼 개인의 경제활동 상태간 전이확률을 추정하지 않고, 공표된 거시적 경제활동참가율을 사용할 수 있는 장점이 있음을 보여주고 있다. 아울러, 통계청이 발표한 2000-2050년의 간이생명표를 바탕으로 성 연령별 경제활동참가율 전망치를 추정하고, Garfinkle-Pollard의 증감 노동생명표 방법론에 의한 노동기대여명을 전망하였다. 그 결과 2000년에서 2050년 동안 65세의 노동기대여명은 남자 5.8년에서 7.7년, 여자 4.1년에서 5.1년으로 증가되었다. 그러나, 65세 이상 고령자의 경우는 자료처리 방법 및 향후 사망확률 가정에 따라 노동기대여명이 다소 차이를 보였다. 정확한 노동기대여명의 측정 및 전망을 위해서는 고령자의 경제활동에 대한 상세한 자료가 필요함은 물론, 향후 사망력 가정에 대한 심층 연구가 수반되어야 할 것이다.

• 한국건축시공학회지
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• 제8권2호
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• pp.45-52
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• 2008

In today's construction, there has been an increase in the construction of high-rise buildings due to the need to maximize land usage. Framework affects not only the entire construction duration and cost, but also subsequency construction activities such as electrical, mechanical, and finishing works. Especially, proper formwork is a influential factor of productivity in the framwork of reinforced concrete construction. To that reason, a table form of system form is more frequently used than conventional form. However, an initial cost of the table form is high and a reused table form needs for workers to repair damaged table forms. Therefore, the goal of this study is to introduce euro-unit table form. The results from the application of euro-unit table form to high-rise residentia building construction are as follows : (1) The cost of producing table form reduced by 16%, and (2) The time of producing table form was slumped by 35%, and (3) The labor force needed for form work declined 21%.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.861-864
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• 2009

The authors have developed the display system which can be viewed from any direction. In this paper, we propose an omni-directional 3D display system for cooperative activity on a round table.

• 한국기록관리학회지
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• 제22권1호
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• pp.177-200
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• 2022

행정정보 데이터세트는 조직의 업무수행을 기반으로 생산되는 기록이다. 기록 행위에 대한 증거일뿐만 아니라 업무에 활용될 수 있는 수많은 정보를 포함하고 있다. 그동안 기록관리 현장의 그늘에 있던 데이터세트는 2020년 법령의 개정을 통해 기록으로 관리될 수 있는 법적 근거가 마련되었다. 이에 데이터세트 기록관리업무는 필요한 기관을 중심으로 이미 점진적으로 시작되었다. 데이터세트 기록관리업무의 핵심은 관리기준표의 작성에 있다. 그러나 기록관리를 수행하는 현장에서는 기록관리기준표 개념과의 혼선과 익숙하지 않은 개념의 등장으로 업무의 고충을 토로하고 있다. 본 연구는 이러한 배경 속에서 초반에 드러나는 데이터세트 기록관리의 문제점을 다시 한번 되짚어 보고, 보다 효과적으로 데이터세트 기록관리업무를 안착시킬 방법을 제시하고자 한다. 그 방안으로 관리기준표를 연구대상으로 선정하여 그간 논의되었던 문제점을 정리하고, 현행의 관리기준표 항목을 분석하였다. 연구의 결과로 관리기준표 항목의 간소화, 관리기준표 영역의 재편성, 보유기간의 개념 도입, 관리기준표 작성 프로세스를 제언하였다.

• Journal of applied mathematics & informatics
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• 제8권1호
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• pp.71-80
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• 2001

The purpose of this paper is to give the classification of homogeneous integral table algebras of degree 5 containing a faithful real element of which 2. In fact, these algebras are classified to exact isomorphism, that is the sets of structure constants which arise from the given basis are completely determined. This is work towards classifying homogeneous integral table algebras of degree 5. AMS Mathematics Subject Classification : 20C05, 20C99.

• 한국기계가공학회지
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• 제12권4호
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• pp.81-86
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• 2013

For a 2-dimensional(2D) vibration milling, an excitation work-table was developed using two piezoelectric materials orthogonally arranged, where the trochoidal trajectory of a milling tool is combined with 2 dimensional elliptical vibration of a work-table. Applying 3kHz excitation frequency and 7~8mm amplitude of vibration to micro milling process with brass and nickel materials, the roughness in both bottom and side surface is much more improved compared to the surface by conventional milling process, which is attributed to decreased frictional force, increased cutting speed, and rubbing effect of a 2 dimensional vibration.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2012년도 춘계 학술논문 발표대회
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• pp.169-171
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• 2012

Although work-efficiency of construction machinery is a critical factor for estimating its workable-quantity per unit time, the coefficient figure table presented in the Poom-Sam that is used for Construction Cost Estimation of public sectors in Korea is very subjective for practical usage. In order to suggest objective work-coefficient table for a Tub Grinder, domestic and overseas documentary records were investigated and on-going construction sites were also visited. The research found that the table can be revised by means of detailing down by several factors. The research will be the foundation for applying the rapid development of Construction Equipment and technology to the appropriate cost estimations and the ground work of related studies.

• 대한안전경영과학회지
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• 제9권2호
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• pp.1-8
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• 2007

Safety check-up and individual education, safety status wishes to present included safety assessment table for safety management assessment system construction about unit work process in Study. Safety management assessment table gives each grades about worker of unit work process, safety check-up, education, management and identifies merits and demerits of unit work process, it is that propose safety management assessment system that can reduce accident occurrence possibility.