자료취급의 집단적 방법 ( GMDH ) 을 사용한 예측의 정도에 관한 연구

조암 한국품질경영학회 1986 품질경영학회지 Vol.14 No.1

한(韓)·중(中) 양국어(兩國語)의 속어(俗語)와 관용어대비(慣用語對比) 소고(小考)

조암 한국어문교육연구회 1999 어문연구(語文硏究) Vol.27 No.1

한국어 한자어접미사의 범주 설정 기준에 대하여

조암 중국한국(조선)어교육연구학회 2017 한국(조선)어교육연구 Vol.12 No.-

學界對韓國語漢字后綴范疇的存在與否、判斷標准、范疇成員 等基本問題存在爭議,這與漢字后綴的原型范疇特点有關。本 硏究運用認知語言學的原型范疇理論設定漢字后綴的原型范疇 屬性標准,根据漢字后綴兼有范疇的功能類型,通過設立一級 標准,將漢字后綴范疇成員按照原型性程度劃分爲四個層級。 通過設立二級標准卽形態標准、語義標准、構詞標准對每個層 級的漢字后綴范疇成員的原型性程度作進一步考察.

대기속도와 항법데이터를 이용한 기류각 및 바람 추정

조암,강영신,박범진,유창선 한국항공우주학회 2013 한국항공우주학회 학술발표회 논문집 Vol.2013 No.11

비행체의 자동조종장치는 비행체를 조종하기 위해 비행체의 기류각, 즉 받음각과 옆미끄럼각을 피드백 한다. 피토-정압관에 장착된 기계적 베인으로 측정한 기류각은 저속에서는 정확하지 않고 잡음이 클 뿐만 아니라, 기계적 베인의 고장 위험성도 가지고 있다. 본 논문은 바람이 일정하다는 가정 하에 비행체의 기류각 및 바람 벡터를 추정하는 확장칼만필터를 제안한다. 제안된 필터는 대기속도와 GPS/INS 통합항법시스템의 지면속도 벡터, 항법데이터와 비행제어시스템의 제어 입력 값으로부터 계산되는 옆미끄럼각 계산값을 측정치로 사용한다. 옆미끄럼각 측정치를 계산하기 위해 필요한 조종 및 안정 미계수는 비행시험데이터로부터 계산된다. 제안된 필터의 성능을 검증하기 위하여 시뮬레이션을 수행하였고, 시뮬레이션 결과 필터 추정 값들이 참값에 수렴함을 확일 할 수 있었다. The aircraft autopilot needs the feedback of airflow angles, that is, angle-of attack and sideslip angle to control the aircraft. The airflow angles measured by a mechanical vane are not accurate and very noisy for low airspeed. Moreover, the vane has a mechanical failure risk. This paper describes the extended Kalman filter based method to estimate the airflow angles and three-dimensional wind speed under constant wind condition. In addition, it can correct the scaling error of the airspeed of an aircraft. It uses the airspeed measurements, constant wind condition and the sideslip angle computed from GPS/INS navigation data and stability and control derivatives estimated from flight data. Simulation results show that the proposed method works well in various conditions.

조선어 한자어접사의 형음의의 대응관계 연구

조암(?岩) 길림성민족사무위원회 2017 중국조선어문 Vol.209 No.-

한자어접사는 조선에서 수량도 많고 생산성도 높은 단음절한자형태소이다. 본 연구에서는 다섯부의 대표적인 조선(한국)어 사전에 수록된 209개의 한자어접두사와 358개의 한자어접미사를 연구대상으로 하여 한자어접사와 대응되는 한자, 한자음, 그리고 한자어접사 의미의 대응관계에 대하여 분류하고 고찰하였다. 한자어접사의 형음의의 대응관계 연구는 조선어접사의 특징과 사용양상을 파악하는 데에 도움이 된다.

원격 조종 작업에서 3가지 시각 궤환 조건하의 작업 수행도

조암,윤완진,김진 동국대학교 산업기술연구원 1997 산업기술논문집 Vol.10 No.-

In a teleoperator, the participation of a human operator is always required, and the man-machine interface and the operator's abilities is an important issue. Recently, the different types of sensory feedback conditions(force, vision, sound, tactile, etc) for teleoperation is a very active research area in ergonomics. Among them, visual feedback condition is an important sense that can provide the information of task environment. Therefore, the sufficient understandings and investigation for human ability under various visual feedback conditions is required to establish the efficient man-machine interface of teleoperation In this research, we investigated the effect of three visual feedback conditions(direct viewing, one-monitor viewing, and two-monitors viewing) on the task performance of human operator in teleoperation task. The three different level of task difficulties under each conditions were performed by thirty-six subjects. The result of the experiments was analysed by the task difficulties, and the measurements of performance are the task completion time and the frequency of task errors. The result showed that the visual feedback conditions and the level of task difficulties have a significant effect on the task performance. For three level of task difficulties, the task completion time was the shortest under the condition of direct viewing. The number of task errors under the conditions of direct viewing and two-monitors viewing were reduced by more than half compare to that of one-monitor viewing.

이안식 입체영상에서 심도지각의 정확성에 관한 연구

조암,Cho, Am 대한인간공학회 1994 大韓人間工學會誌 Vol.13 No.1

The accurate error size and discrimination region in the perception of depth amount from 3-dimensional images by the human visual system will be the basic data for the utilization and application of the binocular 3- eimensional image system. This paper is focused on studying the accuracy of the depth amount perceived from 3- dimensional images by the human visual system. From the performed experiment, the following results have been obtained: (1) The depth amount perceived from the binocular 3- dimensional images has been displayed by a proper scale of distance, and found to be imprecise and also have a large variance. (2) In utilizing the binocular 3-dimensional image system, it seems more appropriate to make the images viewed outward rather than inward from the screen in the regard of error and variance. (3) The binocular 3-dimensional image system can be effectively applied to displaying unreal space, for example, the layout of room in design, from the viewpoint of perception characteristics of depth amount.

안전위도(EOG)에 의한 입체영상의 평가

조암,Cho, Am 대한인간공학회 1997 大韓人間工學會誌 Vol.16 No.1

In this research, and investigation of the eye movement was performend when the objects perceived by the eye are three-dimensional objects, two dimensional images, and trhee dimensional images. This investigation was done by observing the EQG(Electro- oculogram) waves which were obtained from experiments. The observed waves were categorized into several groups. Differences among the waves were analyzed for each object and image perceived by the eye. In order to obtain waves for analysis, two kinds of experiments were performen. In each experiment, the saccadic eye movement and the smooth pursuit eye movement were considered as an independent variables. Waves obtained from the experiments were categorized into 4 types (Wave-1, Wave-2, Wave-3, Wave-4) depending on their characteristics. Unlike the other images, three dimensional image was revealed as a key factor for the active movement of the eye. Futhermore, a unique eye movement was observed in the case of three dimensional images where the focus of the eye was achieved through three steps.

수직이착륙 무인기 함상이착륙을 위한 파고 및 함정운동 모사

조암,유창선,강영신,박범진 한국항공우주학회 2013 한국항공우주학회 학술발표회 논문집 Vol.2013 No.11

수직이착륙 항공기의 함상운용 제한조건(SHOL: Ship Helicopter Operating Limit)은 함상이착륙 단계에서 결정된다. 함상이착륙은 수직이착륙 항공기의 해상에서의 활용성을 높이기 위한 가장 중요한 요소이다. 수직이착륙 항공기의 함상이착륙은 파도에 의한 함정의 운동, 바람에 의한 착륙장 주위의 와류, 함정의 배기가스 등 많은 외부 요인에 의해 영향을 받는다. 해상에서의 실측값을 바탕으로 함상이착륙 환경을 모사하는 방법은 함정 속도, 파도 입사각, 바람 방향 등에 따른 매우 큰 데이터베이스를 필요로 한다. 본 논문에서는 함상이착륙 환경을 모사하기 위해, 수학적 모델을 이용하여 다양한 해상 상태에서 파도에 의한 함정의 운동을 모사하는 방법에 대해 기술하고, 이를 제원이 공개된 4000톤급의 미 해군함에 적용하였다. The ship helicopter operating limit (SHOL) of a vertical takeoff and landing (VTOL) aircraft depends on shipboard landing phase. The shipboard landing is an essential element to make the best use of a VTOL aircraft at sea. The shipboard landing is affected by many external factors such as the ship movement due to sea wave, the gust and vortex around the structures on the ship, and the exhaust gas of a ship. To simulate the shipboard landing environment, this paper describes how to generate the ship motion by sea wave at various sea state using a mathematical model. In addition, it is applied to a 4000 ton class, US destroyer.

입체영상과 평면영상의 심도 인지량에 관한 연구

조암,Cho, Am 대한인간공학회 1991 大韓人間工學會誌 Vol.10 No.1

This paper aims to examine experimentally the difference of subjectively measured degree of depth between two dimensional (2D) and three dimensional (3D) images. For this paper, two experiments were conducted; in the first experiment, the subjects were asked to estimate the distance between two objects presented with different depths, while in the second experiment, the subjects' role was to rank three objects in the order of distance from the screen. In both experiments, the objects were presented either in 2D or 3D images. The results of the experiments show that the use of 3D images can induce more accurate and more stable estimates of distance than the use of 2D images. However, it is also noted that the absolute degree of depth is not the unique criteria utilized by the subjects for the distinction of small differences of depth.