• 품질경영학회지
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• 제50권4호
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• pp.793-810
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• 2022

Purpose: As improving the search performance of aviation security equipment is considered essential, this study proposes the need for research on how to find an optimized test sequence that can reduce test time and operator power during the search function test of explosive detection systems. We derive the weights and work difficulty adjustment factor required to find the optimized test order. Methods: First, after setting the test factors, the time of each test and the difficulty scale determined by the worker who performed the test directly were used to derive weights. Second, the work difficulty adjustment coefficient was determined by combining the basic weight adjustment factor and corresponding to the body part used by the test using objective rating. Then the final standard time was derived by calculating the additional weights for the changeability of the test factors. Results: The order in which the final standard time is minimized when 50 tests are performed was defined as the optimized order. 50 tests should be conducted without duplication and the optimal order of tests was obtained when compared to previously numbered tests. As a result of minimizing the total standard time by using Excel's solver parameters, it was reduced by 379.14 seconds, about 6.32 minutes. Conclusion: We tried to express it in mathematical formulas to propose a method for setting an optimized test sequence even when testing is performed on other aviation security equipment. As a result, the optimal test order was derived from the operator's point of view, and it was demonstrated by minimizing the total standard time.

• 제어로봇시스템학회논문지
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• 제19권11호
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• pp.979-983
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• 2013

The three-dimensional measurement method of confocal systems is a spot scanning method which has a high resolution and good illumination efficiency. However, conventional confocal systems had a weak point in that it has to perform XY axis scanning to achieve FOV (Field of View) vision through spot scanning. There are some methods to improve this problem involving the use of a galvano mirror [1], pin-hole array, etc. Therefore, in this paper we propose a method to improve a parallel mode confocal system using a micro-lens and pin-hole array in a dual microscope configuration. We made an area scan possible by using a combination MLA (Micro Lens Array) and pin-hole array, and used an objective lens to improve the light transmittance and signal-to-noise ratio. Additionally, we made it possible to change the objective lens so that it is possible to select a lens considering the reflection characteristic of the measuring object and proper magnification. We did an experiment using 5X, 2.3X objective lens, and did a calibration of height using a VLSI calibration target.

• 한국경영과학회지
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• 제41권3호
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• pp.75-96
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• 2016

This paper investigates the usefulness of drones in an urban delivery system. We define the vehicle and drone routing problem with time window (VDRPTW) and present a model that can describe a dual mode delivery system consisting of drones and vehicles in the metropolitan area. Drones are relatively free from traffic congestion but have limited flight range and capacity. Vehicles are not free from traffic congestion, and the complexity of urban road network reduces the efficiency of vehicles. Using drones and vehicles together can reduce inefficiency of the urban delivery system because of their complementary cooperation. In this paper, we assume that drones operate in a point-to-point manner between the depot and customers, and that customers in the need of fast delivery are willing to pay additional charges. For the experiment datasets, we use instances of Solomon (1987), which are well known in the Vehicle Routing Problem society. Moreover, to mirror the urban logistics demand trend, customers who want fast delivery are added to the Solomon's instances. We propose a hybrid evolutionary algorithm for solving VDRPTW. The experiment results provide different useful insights according to the geographical distributions of customers. In the instances where customers are randomly located and in instances where some customers are randomly located while others form some clusters, the dual mode delivery system displays lower total cost and higher customer satisfaction. In instances with clustered customers, the dual mode delivery system exhibits narrow competition for the total cost with the delivery system that uses only vehicles. In this case, using drones and vehicles together can reduce the level of dissatisfaction of customers who take their cargo over the time-window. From the view point of strategic flexibility, the dual mode delivery system appears to be more interesting. In meeting the objective of maximizing customer satisfaction, the use of drones and vehicles incurs less cost and requires fewer resources.

• 농촌계획
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• 제21권2호
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• pp.63-77
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• 2015

Improve the rural views of the Government and the municipalities with the intention of rural landscape planning. However, rural scenery evaluation of landscape types and element categories, landscape scenes, such as the valuation of resources selected, form a coherent system and ecological point of view is not only a Visual perspective of evaluation, or evaluation is made. This study evaluates the rural landscape through the rural landscape for rurality is implemented can explain the image. Rural amenity 100 represented the rural landscape in rurality with photos of photos, and scenes, photos, location-based rural Vista rurality landscapes drawn components. Selected landscape photography scenic landscapes in the u.s. survey and image vocabularies through surveys is representative of the landscape in rurality of each Vista location-specific photos and images began extracted factors. As a result, the Distant view is a town and village in the rolling hills of the surrounding environment is an image behind the Vista Skyline, Farmland Rural village forests, Behind the hills, Individual housing roof, Housing arrangement, The number of household includes landscape components. Factor analysis 'openness', 'intimacy', 'activity', 'complexity', 'safety' was down to five factors, such as a description of the overall factors that force was 66.45 percent. Middle distance view is close to being out of town houses and village environment, an image in the skyline hills Vista, farmlands, village forests, rolling hills, behind the scenes of the housing component of the neck, the sperm will honor an individual factor analysis results are 'intimacy', 'safety', 'openness', 'specificity', 'complexity' five factors the whole description of the capacity factors compared to 67.24 percent. Close-range view is mainly in Vista village embraced the individual elements and an image of a harmonious location in the surroundings of the sperm, individual houses, fences, gates, courtyard, Garden, garage, agricultural facilities, including, but not limited to, factors assay but an 'intimacy', 'complexity', 'safety', 'activity', 'openness' five factors, such as a description of the overall factors that force was 65.29%. This research seeks to determine the extent to which rurality of rural landscape Vista by location attributes and elements and representative officer in photo selection and rurality to extract the image. To date, followed by a comprehensive study, which was presented through the readjustment could not overlook the Visual elements. The future rural development officer for the evaluation of rural landscape classification and quantitative and objective assessment will have to come up with ways to do.

• 대한의료기공학회지
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• 제20권1호
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• pp.148-162
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• 2020

Objective : The purpose of this study is not only to examine the negative functions of alcohol, but also to examine the positive functions and look at it with a balanced perspective. Methods : We investigated the number of times the word "酒"(alcohol) appears in 《Hwangjenaegyeong》 and 《Gyeongakjeonseo》. The meaning of alcohol was divided into seven categories. The number of positive and negative functions of alcohol was counted and the ratio was calculated. Results : 1. In the 《Hwangjenaegyeong》, the word alcohol appears 23 times, of which 9 times has positive functions, 10 times has negative functions, and the remaining 4 times does not correspond anywhere. The ratio of positive functions is 39.13% and negative functions 43.48%. 2. In the 《Gyeongakjeonseo》, the word alcohol appears 1,487 times, of which 1,140 times (76.66%) has positive functions, and 327 times (21.99%) has negative functions. Conclusions : 1. In 《Hwangjenaegyeong》, the number of comments about positive and negative functions of alcohol is similar. 2. 《Gyeongakjeonseo》 has commented a lot about the positive functions of alcohol. However, it has more mentions to negative functions of alcohol except for those related to herbs and prescriptions (48 to 64 chapter). 3. It is somewhat unreasonable to judge the emphasis on the positive and negative function of alcohol according to the number of references to alcohol in oriental medicine classics. But in these books, we can find a balanced approach between the two sides, not a one-sided biased view. 4. From a curative point of view, it is desirable to know and to use the positive and negative functions of alcohol, and drink alcohol as appropriate control.

• Journal of Acupuncture Research
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• 제20권1호
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• pp.22-34
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• 2003

Objective : To ascertain whether the concept of the treatment side is associated with changes in the blind spot mapping that represents the brain function. Methods : Among the outpatients who visited to Department of Acupuncture & Moxibustion, National Medical Center from March 2002 to October 2002, we selected 40 clinical trial volunteers that showed right side physiological blind spot more enlarged than left, and underwent the examinations of Department of Opthalmology, National Medical Center for ruling out the pathological conditions. Physiological blind spot maps were used as an integer of brain activity before and after electroacupuncture application on the unilateral ST36 meridian point by dividing 40 subjects into two comparative groups for double-blind controlled study. Results: The significant changes in the blind spots were observed. Electroacupuncture application on the ipsilateral or contralateral ST36 of an enlargement cortical map were associated with the concept of determining the treatment side. In the case of electroacupuncture application on the ipsilateral side of an enlarged blind spot, there were decrease of $4.11{\pm}8.56cm$(17.3%) in blind spot perimetry length(p < 0.05). In the case of contralateral side, there were increase of $3.19{\pm}5.40cm$(13.7%) in blind spot perimetry length(p<0.05). The Differences were statistically significant(p<0.05). Conclusions: We found that eletroacupuncture application was associated with an increase or decrease in the brain function in the view of blind spot changes depending on the treatment side. These results suggest that the traditional acupuncture therapeutic strategy with determining the treatment side has clinical significance in the view of the brain function.

• 한국통신학회논문지
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• 제40권12호
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• pp.2530-2538
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• 2015

깊이맵은 색채 영상과 달리 색상 정보가 아닌 깊이 정보가 픽셀 값을 이루고 있어서 색차가 크더라도 비슷한 거리에 있으면 유사한 픽셀 값으로 나타난다. 또한 색채 영상은 미세한 영역에서 단계적으로 값이 변하면서 대상의 윤곽을 나타내지만 깊이맵은 픽셀 값이 계단식으로 변하여 픽셀 값이 변하는 지점에서 급변하는 경향이 있다. 이러한 깊이맵의 특성상 경계 영역과 그 외의 영역으로 크게 영상의 영역을 구분 할 수 있고, 전송 시 나타나는 오류에 대해 각 영역에 효과적으로 적용 될 수 있는 오류 은닉 방법이 필요하다. 본 연구에서는 깊이맵의 경계 방향에 따라 영역을 구분하고 각 영역의 값이 변화하는 방향성에 맞추어 적응적으로 오류가 은닉 될 수 있는 방법을 적용하여 깊이맵을 복구한다. 복구된 깊이맵은 다시점 영상과 함께 합성하여 새로운 중간 시점 영상을 만들고 이를 객관적 화질평가 방법을 통해 평가한다.

• 한국건설관리학회논문집
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• 제12권4호
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• pp.117-129
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• 2011

건설프로젝트의 대형화, 복잡화, 다양화로 인해 전략적 대응방안 중 하나로 BIM(Building Information Modeling)이 등장하였다. 최근 조달청에서는 2012년부터 500억 이상의 건설 프로젝트에 BIM적용을 의무화하는 BIM 활성화 계획을 발표하여 국내 건설 산업 전반으로 BIM도입이 확산되고 있다. 이에 BIM기반 프로젝트 사례를 바탕으로 각종 BIM연구가 진행되고 있다. 그러나 현재 BIM관련 연구는 BIM도입에 대한 단편적인 문제점 도출 및 BIM에 대한 기술력과 체제 구축 등의 문제점을 중점으로 활발히 진행되고 있으나, 본질적인 BIM기반 프로젝트 전반에 대한 만족도에 관한 연구는 전무하다. 따라서 본 연구는 국내 BIM기반 프로젝트에 대한 실태 파악 및 만족도를 조사하여 이를 종합적으로 분석하고 현재 실무자들의 시각에서의 프로젝트 내 BIM적용에 대한 중요 부문 및 취약 부문을 파악한 뒤 중점 개선하는 방향을 제시하는 등 효율성 면에서의 BIM기반 프로젝트에 대한 만족도 연구를 하였다.

• 대한지역사회작업치료학회지
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• 제5권1호
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• pp.55-62
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• 2015

목적 : 경북지역의 장애아전문어린이집을 이용하는 아동의 부모를 대상으로 작업치료서비스에 대한 만족도를 알아보고자 하였다. 연구방법 : 경북지역의 14개 장애아전문어린이집에서 작업치료를 받고 있는 아동의 부모 104명을 대상으로 2014년 7월부터 2015년 3월까지 설문조사를 실시하여 빈도분석과 평균 및 표준편차, 일원배치분산분석을 하였다. 결과 : 아동이 작업치료를 처음 받은 시기는 평균 3.25세, 작업치료서비스를 받아 온 기간은 평균 31.84개월이었고, 작업치료를 이용한 주된 동기는 어린이집 상담을 통한 것이 40.4%로 가장 많았다. 작업치료 이외 받는 서비스는 언어치료가 78.0%로 가장 많았고, 작업치료의 필요성에 대해 매우 필요가 69.3%로 가장 많았다. 작업치료서비스에 대한 만족도는 작업치료사의 태도가 평균 4.49점이었고, 작업치료 프로그램에 대한 만족도가 평균 4.36점이었으며, 작업치료실의 환경이 평균 4.26점으로 작업치료사의 태도에 대한 만족도가 가장 높게 나타났다. 결론 : 작업치료서비스의 만족도를 바탕으로 객관적인 시각으로 작업치료를 볼 수 있었고, 보다 효과적이며 의미 있는 작업치료가 되는데 도움을 줄 수 있었다.

• Anatomy and Cell Biology
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• 제56권4호
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• pp.441-447
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• 2023

One of the suprahyoid muscles is the digastric muscle which comprises anterior and posterior bellies joined by an intermediate tendon. Because of its close relationship with the submandibular gland, lymph nodes, and chief vessels of the neck, detailed knowledge about the morphometry of the digastric muscle is essential. The objective of the current cross-sectional evaluative study is to record morphometry along with the digastric muscle's origin, insertion, and variability. Forty human cadavers (25 males and 15 females) were dissected, and the head and neck regions were studied in detail. The attachment of the digastric muscle anterior belly to the digastric fossa of the mandible was noted, and the distal attachment of the posterior belly to the mastoid notch was traced. The length of the anterior belly from the digastric fossa to its intermediate tendon and the length of the posterior belly from the intermediate tendon to its mastoid attachment were measured. There is a fair correlation between the length of the neck and the length of the anterior and posterior belly. The study also identified two cases of bilateral accessory bellies of the anterior belly of the digastric. Normal morphometric data is provided by this study on details of the digastric muscle. It is significant from a clinical and surgical point of view as the muscle lies in proximity to the important structures of the neck.