• 한국IT서비스학회:학술대회논문집
• /
• 한국IT서비스학회 2008년도 추계학술대회
• /
• pp.337-340
• /
• 2008

To take the re-use of software, we need to study the efficient integration method of source programs. When the source programs are merged, it is required the steps of verification for any non-interference on non-identical parts of them. The traditional techniques of the program integration verify non-interference of source programs through the simple comparison of statements of source programs. We propose the efficient integration method using data flow analysis in the programs. A study comparing test results from the traditional method and the proposed method has found that the proposed method is more efficient than the traditional method.

• 대한기계학회:학술대회논문집
• /
• 대한기계학회 2007년도 춘계학술대회A
• /
• pp.512-517
• /
• 2007

In the previous development of the recursive thermostat chained fully flexible cell molecular dynamics simulation, implicit time integration method such as generalized leapfrog integration is used. The implicit algorithm is very much complicated and not easy to show time reversibility because it is solved by the nonlinear iterative procedure. Thus we develop simple, explicit symplectic time integration formula for the recursive thermostat chained fully flexible unit cell simulation. Uniaxial tension test is performed to verify the present explicit algorithm. We check that the present simulation satisfies the ergodic hypothesis for various values of fictitious mass and coefficient of multiple thermostat system. The proposed method should be helpful to predict mechanical and thermal behavior of nano-scale structure.

• International Journal of Naval Architecture and Ocean Engineering
• /
• 제5권1호
• /
• pp.147-160
• /
• 2013

System integration is an important element for the construction of naval combat ships. In particular, because impeccable combat system integration together with the sensors and weapons can ensure the combat capability and survivability of the ship, the integrated performance of the combat system should be verified and validated whether or not it fulfills the requirements of the end user. In order to conduct systematic verification and validation, a data analysis tool is requisite. This paper suggests the Data Extraction, Recording and Analysis Tool (DERAT) for the data analysis of the integrated performance of the combat system, including the functional definition, architecture and effectiveness of the DERAT by presenting the test results.

• 대한원격탐사학회:학술대회논문집
• /
• 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
• /
• pp.106-110
• /
• 2002

4S-Van is being developed in order to provide the spatial data rapidly and accurately. 4S-Van technique is a system for spatial data construction that is heart of 4S technique. Architecture of 4S-Van system consists of hardware integration part and post-processing part. Hardware part has GPS, INS, color CCD, camera, B/W CCD camera, infrared rays camera, and laser. Software part has GPS/INS integration algorithm, coordinate conversion, lens correction, camera orientation correction, and three dimension position production. In this paper, we suggest that adequate 4S-Van design is needed according to application environment from various test results.

• 대한감각통합치료학회지
• /
• 제3권1호
• /
• pp.13-21
• /
• 2005

Objective : The purpose of this study was to investigate the correlation between hand dexterity and visual-motor skills of preschoolers. We searched for the correlation between two test results, which were the 9-Hole Peg Test performance time and the visual motor integration test(VMI) performance score. Then, we also compared the 9-Hole Peg Test performance times with the VMI performance scores according to sex and age. Method : The participants were fifty normal children ranging in age from four to six years living in Busan. We used two test methods which have high reliability and validity. One was the 9-Hole Peg Test to evaluate hand dexterity, and the other was the VMI to the evaluate visual-motor skills of these young children. Results : First, over the entire range of the participating children, there was a high correlation between the performance times from the 9-Hole Peg Test and the VMI performance scores(r=-.682). Second, there was not a statistically significant difference between the performance times from the 9-Hole Peg Test and the VMI scores according to sex. Third, there were significant differences between the hand dexterity and visual-motor skills according to the children's age(p<.001). Conclusion : This study proved that there is high correlation between hand dexterity and visual-motor skills of the preschooler. Occupational therapists in preschool service should consider that visual-motor skills need to be compatible with hand dexterity in both evaluation and therapy. In addition, hand dexterity and visual-motor skills improved according to advances in age, so we must give graded tasks to proper age groups through concrete analysis of activity. By doing this, children can get the better therapeutic effects.

• 한국과학교육학회지
• /
• 제38권5호
• /
• pp.611-623
• /
• 2018

이 연구에서는 중등 예비 화학교사가 해결자 청취자 활동을 통하여 지필평가 문항을 제작하는 과정에서 나타난 해결자와 청취자의 언어적 행동 및 상호작용을 분석하였다. 이를 위하여 2명의 예비교사로 구성된 4개 조의 해결자 청취자 활동을 통한 지필평가 문항 제작 활동을 녹화 후 전사하여 분석하였다. 연구 결과, 10가지 해결자의 언어적 행동 항목 중에서는 PCK 구성 요소 사이의 '통합' 여부와 관계없이 '제작'이 가장 많이 나타났다. 그 다음으로는 '제공', '수정', '동의요청', '질문', '동의', '정당화' 등도 비교적 많았는데, 특히 '질문'의 경우 '비통합'에서 더 많았던 반면, '정당화'의 경우에는 '통합'에서 더 많았다. 8가지 청취자의 언어적 행동 항목 중에서는 '통합' 여부와 관계없이 '지적', '질문', '동의'가 비교적 많았는데, 특히 '비통합'에서는 '질문'과 '동의'가 더 많았고 '통합'에서는 '지적'이 더 많았다. 언어적 상호작용 유형 중에서는 '대칭형'이 '청취자 주도형'이나 '해결자 주도형'보다 더 많았다. 또한 '대칭형'의 경우 '통합'에서 더 많았던 반면, '해결자 주도형'의 경우에는 '비통합'에서 더 많았다. '청취자 주도형'에서는 '통합' 여부에 관계없이 유사하게 나타났다. '대칭형'은 23가지 항목 중에서 '질문-제공'과 '지적-정당화'가 비교적 많았는데, 그 중에서도 '지적-정당화'는 '통합'에서 더 많았고, '질문-제공'은 '비통합'에서 더 많았다. '통합' 여부와 관계없이 '청취자 주도형'의 경우에는 4가지 항목 중에서 '지적-수정'이 가장 많았고, '해결자 주도형'에서는 3가지 항목 중에서 '제작-동의'가 가장 많았다. 3가지 상호작용 유형에 대하여 다른 항목의 경우에는 매우 적게 나타났다.

• 한국군사과학기술학회지
• /
• 제27권3호
• /
• pp.387-394
• /
• 2024

This paper describes a progressive test and evaluation strategy for verification of Korean Fighter eXperimental (KF-X) AESA(Active Electronically Scanned Array) radar development. Three progressive stages of development test and evaluation were officially performed from simulated test conditions to actual operating conditions according to standards: radar function/performance and avionics integration. KF-X AESA radar development is repeatedly verified by progressive stages consisting of five tests: Roof-lab ground test, System Integration Laboratory(SIL) ground test, Flying Test Bed(FTB) test, KF-X ground test, and KF-X flight test. As a result, the risk factor decreases as stages and tests progress. Therefore, development test and evaluation of KF-X AESA radar are successfully performed at low development risk.

• 경영과정보연구
• /
• 제32권5호
• /
• pp.45-68
• /
• 2013

본 연구는 기업이 지향하는 고객가치에 따라 공급사슬통합 수준에 차이가 있을 것이라는 가정 하에 자료 수집을 통해 공급사슬통합 유형을 분류한 뒤, 각 유형별로 고객가치 및 기업성과에 차이가 있는지를 검정하고자 하였다. 그 결과, 5가지 공급사슬통합 유형(높은 내부지향 통합, 중간 내부지향 통합, 높은 공급사슬통합, 높은 고객지향 통합, 중간 외부지향 통합)이 분류되어 기업들이 공급사슬통합의 개별 차원에 집중하는 정도가 서로 다르다는 것이 밝혀졌다. 또한, 공급사슬통합의 5가지 유형들 간에 지향하는 고객가치 및 기업성과에도 차이가 있는 것으로 나타났다. 품질과 납기의 중요성을 지향하는 기업들은 외부 통합에 집중하고 있으며, 외부 통합의 수준이 높은 기업들은 재무성과보다는 고객성과가 더 높은 것으로 밝혀졌다. 이러한 연구결과는 기업들이 중점적으로 추구하는 고객가치를 실현하기 위해서 어떠한 공급사슬통합 전략을 수립하여 접근해야 하는지에 대한 시사점을 제공해 줄 것이다.

• 대한통합의학회지
• /
• 제11권1호
• /
• pp.113-120
• /
• 2023

Purpose : This study aims to investigate occupational therapy students' perceptions of sensory integration therapy and the effect of an educational program on these perceptions and future preferences. Methods : The participants were 200 occupational therapy students in Busan and Gyeongsangnam-do. A primary survey was first conducted to shed light on students' perceptions of sensory integration therapy, followed by an education program on sensory integration provided through an online video. After this training on sensory integration therapy, an additional survey assessed the their preferred employment routes and intention to take educational courses on clinical sensory integration therapy in the future. A secondary survey was then conducted, using the same form as the primary survey, to identify changes in the students' perceptions of and preferences for sensory integration therapy. A frequency analysis using descriptive statistics was employed to identify the participants' general characteristics, employment-related preferences, and intention to take courses on sensory integration, and a paired samples t-test was used for a comparative analysis of the students' perceptions before and after the education program. Results : In terms of the students' perceptions of sensory integration therapy, the variables of efficiency, facilitation, and expertise showed statistically significant differences before and after the educational program, which resulted in a positive change in their overall perceptions of the therapy after the program. In relation to their preferred employment routes after the program, 100 students (50 %) answered the "field of adults," and 100 (50 %) students answered the "field of children." Conclusion : The findings of this study demonstrated that sensory integration education positively influences occupational therapy students' preferences for and perceptions of sensory integration therapy. Additional research is recommended to organize a more systematic education program and investigate employees in organizations related to children with disabilities.

• 신재생에너지
• /
• 제8권2호
• /
• pp.33-43
• /
• 2012

Why solar companies preferred vertical integration of whole value chain? Major solar companies have built internally strong vertical integration of entire PV value chain. We raise a question whether such integration increases the corporate value and whether market situation affects the result. To test these questions, we conducted multi-variant analysis where characteristic factors mainly affect the corporate value measured in terms of Tobin'Q, based on the financial and non-financial data of PV companies listed in US stock market between 2005 and 2010. We hypothesize that since integration increases the overall efficiency but decreases the flexibility to adjust to various market situation, the combined effect of the efficiency gain and the flexibility loss ultimately determines the sign of integration effect on the corporate vale. We infer that the combined effect will be influenced heavily by business cycle, as in boom market (Seller's market) the efficiency gain may be larger than the flexibility loss and vice versa in bust market. We test whether the sign of combined effect changes after the year of 2009 and which factors influence most the sign. Year of 2009 is known as the year when market shifted from Seller's to Buyer's market. We show that 1) integration increases corporate value in general but after 2009 integration significantly decreases the value, 2) the ratios such as Production/Total Cost, Cash turnover period chosen for reversal of the flexibility measure are negatively affect Tobin's Q and especially stronger after 2009. This shows the flexibility improves corporate value and stronger in the recess period (Buyer's market). These results imply that solar company should set up integration strategy considering the tradeoff between efficiency and flexibility and the impact of the business cycle on both factors. Strategy only based on the price competitiveness determined in boom time can bring undesirable outcomes to the company. In addition, Strategic alliances in some value chains as a flexible bondage should be taken in account as complementary choice to the rigid integration.