• KIEAE Journal
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• v.3 no.4
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• pp.33-36
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• 2003

Bus station is a public space which many people use and various activities are occurred in urban life. Main activities are waiting for departure or passengers with the feelings of joys and sorrows. Also sound information including announcing message of arrival and departure are to be considered carefully. Considering these roles of bus station, creating acoustic amenity is a prerequisite to the spaces. In this study, the spaces of bus station were classified into 4 spaces such as approaching path, waiting palace, departure and arrival platform. Observation survey was conducted to extract various activities in the view point of sound in each space. And subjective response was analyzed before and after introducing prepared sounds.

• Korean Journal of Child Studies
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• v.13 no.1
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• pp.80-98
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• 1992

The purpose of the study is to examine the realities of the child abuse, to analyze the relation between marital conflict and child abuse, and to screen their causes. For the data set 521 elementary school children and mothers living in pusan were chosen. The data were analyzed with the SPSS statistical package using $X^2$, the one-way ANOVA. the factor analysis, and the path analysis. The main results are as follows. Frist, in most of families there are child abuse. Second, among family environmental variables, the father's dissatisfaction with job, the family's social-economic status, violence observation, violence experience influence the child abuse. Third, marital conflict influences marital violence and child abuse, marital violence influences child abuse.

• The Bulletin of The Korean Astronomical Society
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• v.38 no.1
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• pp.55.2-55.2
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• 2013

We present the observational study of parsec-scale jets from YSOs reaching lengths of several arc-minutes. The medium-resolution spectroscopic data were obtained between 6000 - $7000{\AA}$ with BOAO long-slit spectrograph. By performing multi-position observation, we investigated the physical variation of the jets and the ambient gas along the whole path of the jets. The flux, electron density, ionization fraction, and electron temperature are discussed with the estimated line ratios between from [OI], [NII], $H{\alpha}$ and [SII] emission lines. This study carried out with more than 8 jets of YSOs including low- to intermediate-mass stars. We also briefly discuss the kinematics of the outflows using spatial and spectroscopic data.

• Journal of Korean Academy of Nursing
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• v.29 no.1
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• pp.21-33
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• 1999

This study was designed to develop a basic plan for computerization of nursing records. The subjects were 7 nursing record forms, 58 charts, 23 nurses, 2 nurse managers, a nurse and computer specialist, 16 master course students and 3 professors. Data collection was conducted through questionnaire, observation and interview. The collected data were analyzed for problems, plan of improvement and needs for computerization. Based upon these results, it is recommended that nursing record computerization was needed a basic plan to integrate needs of nursing record computerization. The basic plan as fellows : 1. To illustrate a data flow path of nursing record and data dictionary that show nurse's work and record process. 2. To establish a system in order to use multi -tasking and graphic user interface. 3. To establish hardware and software in order to embody integrated management of computer based system through structured walkthrough. 4. To choose effective database management system and to achieve Log as record unit.

• Journal of the Korea Institute of Military Science and Technology
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• v.13 no.1
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• pp.36-40
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• 2010

In this paper, the well-known LOB-based emitter localization using linear LSE algorithm is numerically implemented and the heuristic guidelines for the parameter values to achieve 1% RMS error are presented. In the simulation, we changed the total observation durations for LOB measurements, time interval between successive LOB measurements and sensor trajectories. The effects of the time interval of LOB measurements, the time duration of the LOB measurements and the angle of flight path arc on the performance are illustrated. The dependence of the performance on the various parameters is investigated and rule-of-thumbs for the parameter values corresponding to 1% RMS error are presented for each simulation condition.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2017.11a
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• pp.47-48
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• 2017

The substrate behavior response testing outlined in KS F 2622 evaluates the leakage cause of waterproofing membrane systems when subjected to the concrete joint load behaviors by removing the waterproofing layer after testing, relying mostly on visual observation and subjective analysis. A non-destructive leakage cause and failure type analysis method is proposed currently in this study by the means of detecting leakage paths using thermal emission imaging systems. Test specimens are placed in varying temperature conditions after the concrete joint movement testing and are scanned using the thermal emission camera to determine the location and dimension of the adhesion failure/leakage path beneath the waterproofing membranes.

• The Journal of Korea Robotics Society
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• v.10 no.2
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• pp.112-118
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• 2015

This paper proposes a pose-graph based SLAM method using an upward-looking camera and artificial landmarks for AGVs in factory environments. The proposed method provides a way to acquire the camera extrinsic matrix and improves the accuracy of feature observation using a low-cost camera. SLAM is conducted by optimizing AGV's explored path using the artificial landmarks installed on the ceiling at various locations. As the AGV explores, the pose nodes are added based on the certain distance from odometry and the landmark nodes are registered when AGV recognizes the fiducial marks. As a result of the proposed scheme, a graph network is created and optimized through a G2O optimization tool so that the accumulated error due to the slip is minimized. The experiment shows that the proposed method is robust for SLAM in real factory environments.

• Journal of The Korea Institute of Healthcare Architecture
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• v.11 no.1
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• pp.69-77
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• 2005

The purpose of this study is to build fundamental data related to corridor space for nursing home design. Elderly with dementia were observed in corridor space at two nursing homes in In-cheon City. Two types of behavior were found out through in-depth observation; Group and Personal behaviors. Group behaviors were varying according to the type of programs such as rest, care, diet, and therapeutic services. Personal behaviors could be classified into wandering and private seclusion. These two behaviors were influenced by management programs of facilities, services of care-givers and individual characteristics of residents. The result of this study was discussed on the following matters: 1) Optimum size of residential unit; 2) Working spaces of care-givers; 3) Relationship between bedroom and common space for gathering; 4) Planning for wandering path; 5) Familiarity of interior finishing materials

• Bulletin of the Korean Chemical Society
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• v.21 no.12
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• pp.1227-1232
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• 2000

Near the conical intersection for the 1,2 $^{2}A'$ states of $H_3$ the derivative coupling vector is calculated and analyzed on the plane of internal coordinates, (U,V) or its polar coordinates $(S{\theta})$, based on the squares of the internuclear distances. It is shown that in the vicinity of the conical intersection the derivative coupling vector behaves like ${\theta}/2S$, which is responsible for the sign changes of the real-valued electronic wave function when the nuclear configuration traverses a closed path enclosing a conical intersection. The analytic property of the wave functions is studied and especially the observation of the sign change in the configuration state function (CSF) coefficients of the real-valued electronic wave functions is demonstrated.

• Journal of Sensor Science and Technology
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• v.28 no.5
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• pp.277-283
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• 2019

In this paper, we propose a distributed fusion estimation for sensor networks using a receding horizon strategy. Communication channels were modelled as Markov jump systems, and a posterior probability distribution for communication channel characteristics was calculated and incorporated into the filter to allow distributed fusion estimation to handle path loss observation situations automatically. To implement distributed fusion estimation, a Kalman-Consensus filter was then used to obtain the average consensus, based on the estimates of sensors randomly distributed across sensor networks. The advantages of the proposed algorithms were then verified using a large-scale sensor network example.