• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2021년도 추계학술대회
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• pp.422-424
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• 2021

In this paper, it leads the approach of fusing multiple RGB cameras for visual objects recognition based on deep learning with convolution neural network and 3D Light Detection and Ranging (LiDAR) to observe the environment and match into a 3D world in estimating the distance and position in a form of point cloud map. The goal of perception in multiple cameras are to extract the crucial static and dynamic objects around the autonomous vehicle, especially the blind spot which assists the AV to navigate according to the goal. Numerous cameras with object detection might tend slow-going the computer process in real-time. The computer vision convolution neural network algorithm to use for eradicating this problem use must suitable also to the capacity of the hardware. The localization of classified detected objects comes from the bases of a 3D point cloud environment. But first, the LiDAR point cloud data undergo parsing, and the used algorithm is based on the 3D Euclidean clustering method which gives an accurate on localizing the objects. We evaluated the method using our dataset that comes from VLP-16 and multiple cameras and the results show the completion of the method and multi-sensor fusion strategy.

• 한국주거학회논문집
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• 제13권5호
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• pp.51-58
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• 2002

The purpose of this study is to examine residents' perception and needs for storage according to the family life cycle. In order to achieve our goal, the questionnaire survey is used. We sample the questionnaire surveys of 250 apartment households in Seoul. The data collect by the questionnaire survey was analyzed by examining the frequency, percentage on the SPSS/PC+ Statistics package. The results of the study are obtained as follows: 1) In research on the actual storage condition, residents tend to feel constraint on storage of the season goods and the storage satisfaction on the service area is founded lowest. Therefore, it is needed more efficient space plan on the balcony storage and the interior storage for the season goods. 2) In research on the storage consciousness and attitude, residents tend to keep the goods of no use and prefer to arrange neatly rather than use conveniently. Therefore, it is needed more efficient space in the balcony for the storage of the goods of no use and the colsed furniture rather than the open furniture is suited for arrangement. 3) In research on the storage needs, needs for the built-in furniture in all family life cycle show highly and residents want to a space for the exclusive use of the storage. In a solution, we propose to equip with the interior storage and the exterior cooperative storage

• 한국학교수학회논문집
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• 제12권4호
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• pp.411-431
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• 2009

본 연구는 초등교사를 대상으로 하여 수학적 모델링에 대한 인식을 조사 분석함으로써 초등교육과정에서 수학적 모델링의 현장 적용 가능성을 제시하고자 한다. 이를 위해 서울지역 582명 초등교사를 대상으로 한 설문과 4명의 교사면담을 실시, 분석하였다. 그 결과 수학적 모델링에 대한 교육적 잠재력이 있음에도 불구하고 초등교사들의 인식정도는 매우 저조하였지만, 대다수의 교사들은 수학적 모델링을 개념설명과 흥미유발 측면에서 활용 가능할 것이라고 응답하였다. 국내 외의 경우 중고등학교를 대상으로 하는 연구가 확산되고 있음을 볼 때 활용가치는 높다고 할 수 있지만 아직 초등을 대상으로 한 연구가 부족하기 때문에 앞으로 초등 사례연구를 통해 활용가치를 높일 필요가 있다고 본다.

• 제어로봇시스템학회논문지
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• 제13권8호
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• pp.783-789
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• 2007

In this paper, firstly, we propose a generating method of the 3-D obstacle map using ultrasonic sensors. Secondly, we try to find the necessary stimulation conditions of compact tactile display device for effective transfer of obstacle information. The final goal of this research is the development of a walking guide system for the blind to walk safely. The walking guide system consists of a guide vehicle for the obstacle detection and a tactile display device for the transfer of the obstacle information. The guide vehicle, located in front of the walking blind, detects the obstacle using ultrasonic sensors. The processed information makes an obstacle map and transmits safe path and emergency situation to the blind by the tactile display. The tactile display device, located in the handle which is connected with the guide vehicle by cane, offers the processed obstacle information such as position, size, moving, shape of obstacle and safe path, etc. The concept of a walking guide system with tactile display is introduced, and experiments of 3-D obstacle detection and tactile perception are carried out and analyzed.

• 한국학교수학회논문집
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• 제18권4호
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• pp.471-486
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• 2015

행복교육은 입신양명(立身揚名)으로 지향되었던 교육 목표를 학생이 지닌 소질과 잠재력을 발휘하도록 이끌자는 보다 성숙된 교육 방향으로의 전환 운동이다. 이러한 행복교육과 관련하여 수학교과 교육과정 안에서의 구체적인 실천 방안을 찾아보는 것은 학교수학 차원에서 매우 중요하다. 이에 본 연구에서는 초 중등학교 교사를 대상으로 수학교육에서의 행복교육 실천방안에 대한 설문 조사를 실시하였다. 그리고 설문 조사 결과를 분석하여 학교 현장상황에 부합하는 합리적이고 실질적인 행복교육 실천 방안을 모색하였다.

• 한국실내디자인학회논문집
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• 제22권5호
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• pp.162-170
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• 2013

Although vision has been considered as a top sensory organ in the Western culture until modern times, the significance of space experience that communicates with a body via complex perceptions has recently garnered attention. This study criticizes the limitations of a vision-centered space and has the goal of empirically examining the sensibility characteristics in a haptic space through post-structuralism views leading up to Gilles Deleuze's philosophical ideas. This study will explore the flow of senses from the philosophical and artistic standpoint and the sensibility characteristics in a haptic space by examining the theories on haptic perceptions in connection with a space. In order to test the existing theories and identify the differences in sensibilities depending on perceptual method, the sensibilities of participants were compared using SD method (Semantic Differential scale method) and a validity test was conducted using a statistical program SPSS. The research has revealed that the average sensitivity scale of complex haptic perception was higher than single perception that only relies on vision. In addition, there was a correlation between perceptual method based on various sensory organs and human sensitivities. This study is meaningful in that it can serve a foundation for empirical research on sensibility, since it has reexamined the relationship between space and participants and demonstrated and analyzed their sensitivities through an experiment.

• 동아시아식생활학회지
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• 제10권1호
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• pp.89-97
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• 2000

The goal of this study was to fine the way of reduction on food waste in the university cafeteria. A survey was conducted on the 500 faculty members using Yeungnam University cafeteria , and if illustrate the faculty's use and perception for the reduction of food waste. Its results can be summarized as follows ; 32.0 % of the total users use the university cafeteria everyday, also 56.6% of the users preferred Korean style dish. Female users left more food than the male users resulting in more food wastes. The male users resulting in more food waste and the most leaving food was Kimchi than the other types of foods. The most favorite stew and side dish turned out to be Yukgaejang and Bulgogi respectively, also Kimchibokkumbab was the preffered dish. But they disliked Sunjiguk , Ginger, Jellyfish and Mackerel pike. The preception of male users on the reduction of food waste was lower than that of female users. The best way of food waste treatment recognized by the users were utilizing the waste food as fodder for animals or fertilizer.

• Journal of Communications and Networks
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• 제11권4호
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• pp.390-405
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• 2009

Wireless sensor networks (WSNs) are envisioned to facilitate information gathering for various applications and depending on the application types they may require certain quality of service (QoS) guarantee for successful and guaranteed event perception. Therefore, QoS in WSNs is an important issue and two most important parameters that hinder the goal of guaranteed event perception are time-sensitive and reliable delivery of gathered information, while a minimum energy consumption is desired. In this paper, we propose an energy-aware, multi-constrained and multipath QoS provisioning mechanism for WSNs based on optimization approach. Hence, a detailed analytical analysis of reliability, delay and energy consumption is presented to formulate the optimization problem in an analytical way. A greedy algorithm is proposed to achieve the desired QoS guarantee while keeping the energy consumption minimum. Also, a simple but efficient retransmission mechanism is proposed to enhance the reliability further, while keeping the delay within delay bound. Simulation results demonstrate the effectiveness of our scheme.

• 수산해양교육연구
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• 제27권3호
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• pp.804-812
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• 2015

The purpose of this study was to analyze the perception of a high school teacher on Admission Officer System. The subjects were limited to 324 high school teachers of Busan, Ulsan, and Gyeongsangnam-do regions. The major research question for the study was how are the perceptions of high school teachers about the Admission Officer System. The main results were as follows: first, high school teachers showed high understanding of the admissions overall. Second, high school teachers with counseling experience about applying to colleges considered the score of the College Scholastic Ability Test less important. Third, high school teachers have recognized that there is a distance between high school education activities and the Admission Officer System. Eliciting sympathy from the high school teachers for the Admission Officer System is a very important task. Negative perceptions of high school teachers on the Admission Officer System is still remained. The cooperation between leading universities and high schools would help the Admission Officer System work with its original purpose or goal.

• 한국가정과교육학회지
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• 제14권2호
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• pp.1-14
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• 2002

The goal of the study is to find the necessary measures to facilitate a desirable Technology and Home Economics curriculum by reflecting the Perception and needs of the teachers from the perspective of the curriculum content. professionalism of the teacher realistic operations of the school . and the administration of the school system. The results obtained from the research are as follows : 1) The background knowledge and characteristics of the two curriculums are different. and in addition there is a negative perception due to the fact that it is hard to facilitate a class with just one teacher. 2) The issues that were most serious to teachers were professionalism of the teacher. qualification of the teachers. and teaching method. Also the teachers lacked in confidence in teaching and the curriculum itself. 3) In regards to qualifications of the teacher the teachers requested that teachers should have single qualification in 'Technology(or Home Economics)'or dual qualifications in both 'Technology' and 'Home Economics'. As for teaching methodology responded that from the teacher and student perspective the teaching should be divided whereas from the school's perspective the responsibility should be Put on a single teacher. 4) Teachers responded that from the perspective of the teacher, parent or student Technology and Home Economics should be separated into two subjects.