• 재활복지
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• v.21 no.4
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• pp.77-99
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• 2017

The purpose of this study is to prepare the basic information of teacher training through the special education teachers' present execution status and awareness on positive behavior intervention support for the student with disabilities. The results of the study as follows: First, the rate of teachers having high concern on students' behavioral management was 22.9%, and the rate of teachers taking median concern was 66%. And the teachers obtained the information on problem management including positive behavior support by publications or teacher training. Second, the importance of individual interventions valuated significantly which presented mostly more 4 point. But relatively the point of application possibility was lower than the point of importance evaluation. Third, the rate of application as 70% among total research participants presented to be used the most in all individual interventions on positive behavior support. And on the effectiveness, the teachers answered that 23 interventions were effective. But, on the facts of monitoring and assessment of behaviors, the special education teachers negatively evaluated the effectiveness. Results are discussed with previous research, contributions to future directions, and implications in interventions for students with disabilities.

• Journal of Communications and Networks
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• v.7 no.3
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• pp.313-324
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• 2005

The success of the IEEE 802.11 standard has prompted research into efficiency of the different medium access methods and their support for different traffic types. A modified version of the point coordination function (PCF) called modified PCF has been introduced as a way to improve the efficiency over the standard method. It has been shown through a simulation study and a mathematical analysis that channel utilization can be much improved compared to the standard, in case there is no so-called hidden station problem. However, under the hidden station problem, the efficiency of the modified PCF would obviously decrease. In this paper, some enhancements of the modified PCF are introduced. Firstly, we propose a retransmission process to allow frames involved in collisions to be retransmitted. Then, we propose a collision resolution mechanism to reduce the frame collision probability due to the hidden station problem. In addition, we propose a priority scheme to support prioritization for different traffic types such as interactive voice and video, and real-time data traffic in the modified PCF. To prevent the starvation of one low priority traffic, minimum transmission period is also guaranteed to each traffic type via an admission control algorithm. We study the performance of the modified PCF under the hidden station problem and the performance of the modified PCF with priority scheme through simulations. To illustrate the efficiency of the priority scheme, we therefore compare its simulation results with those of some standardized protocols: The distributed coordination function (DCF), the enhanced distributed channel access (EDCA), the PCF, and our previously proposed protocol: The modified PCF without priority scheme. The simulation results show that the increment of delay in the network due to the hidden station problem can be reduced using the proposed collision resolution mechanism. In addition, in a given scenario the modified PCF with priority scheme can provide better quality of service (QoS) support to different traffic types and also support a higher number of data stations than the previous proposals.

• Smart Media Journal
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• v.12 no.1
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• pp.24-31
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• 2023

Meta-learning is metacognition that instantly distinguishes between knowing and unknown. It is a learning method that adapts and solves new problems by self-learning with a small amount of data.A few-shot learning method is a type of meta-learning method that accurately predicts query data even with a very small support set. In this study, we propose a method to solve the limitations of the prototype created with the mean-point vector of each class. For this purpose, we use the few-shot learning method that created the prototype used in the few-shot learning method as the median prototype. For quantitative evaluation, a handwriting recognition dataset and mini-Imagenet dataset were used and compared with the existing method. Through the experimental results, it was confirmed that the performance was improved compared to the existing method.

• Journal of the Korean Society of Marine Environment & Safety
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• v.24 no.6
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• pp.803-809
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• 2018

Generally, the gap-and-sag method is used in the shipbuilding stage before coupling the shafts to check whether they are installed at the same position as designed and derived from shaft alignment calculation. The primary installed propeller shaft becomes a reference point, the position of the remaining shafts are sequentially determined through the gap-and-sag value derived from the deflection and deflection angle at each shaft flange by own weight. If the reference point varies against the design value, it would have a series of effects on the installation of the remaining shafts. Moreover, after coupling the shafts, even if the bearing reaction forces derived from measurement are satisfied by the allowable limit range, consequently it might have an adverse effect on the stability of the shafting system by not being able to estimate the relative slope angle between the propeller shaft and the after-stern tube bearing. In this paper, to deal with above-mentioned phenomenon, the theoretical calculations related to designing an effective support point of the aft stern tube bearing and analysis by measurement is conducted through a case of open-up inspections. Based on this, a shaft installation guideline is proposed to minimize the misalignment related to preventing wiping damage of the after-stern tube bearing.

• Journal of Industrial Convergence
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• v.19 no.3
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• pp.97-105
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• 2021

The purpose of this study was to determine the effect of family cohesion and burden of support on life satisfaction of disabled families and ultimately support the satisfied life of disabled families. The study investigated the factors that influence the life satisfaction of the disabled family through a questionnaire survey as a disabled family caring for a disabled family. As a result of the study, life satisfaction of families with disabilities was as low as 2.278 on a 5-point scale, and the burden of support was 3.432, indicating that they felt a relatively high burden of support. However, family cohesion was relatively good at 3.664, showing that support to lower the burden of support was needed to increase life satisfaction. Based on these findings, the researcher makes the following suggestions to increase the life satisfaction of disabled families. First, the need for support to alleviate the burden of caregivers for the disabled. Second, expanding support for people with disabilities receiving care. Third, there is a need to strengthen support for families with disabilities. However, as this study was conducted centered on Gyeonggi-do, there is a need for follow-up research as the study has limitations.

• Korean Journal of Remote Sensing
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• v.27 no.6
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• pp.625-635
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• 2011

This paper investigates the effects of spatial autocorrelation structures in low resolution data on downscaling without ground measurements or secondary data, as well as the potential of geostatistical downscaling. An advanced geostatistical downscaling scheme applied in this paper consists of two analytical steps: the estimation of the point-support spatial autocorrelation structure by variogram deconvolution and the application of area-to-point kriging. Point kriging of block data without variogram deconvolution is also applied for a comparison purpose. Experiments using two low resolution thematic maps derived from remote sensing data showing very different spatial patterns are carried out to discuss the objectives. From the experiments, it is demonstrated that the advanced geostatistical downscaling scheme can generate the downscaling results that well preserve overall patterns of original low resolution data and also satisfy the coherence property, regardless of spatial patterns in input low resolution data. Point kriging of block data can produce the downscaling result compatible to that by area-to-point kriging when the spatial continuity in block data is strong. If heterogeneous local variations are dominant in input block data, the treatment of the low resolution data as point data cannot generate the reliable downscaling result, and this simplification should not be applied to donwscaling.

• Journal of KIISE:Databases
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• v.30 no.4
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• pp.372-380
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• 2003

Temporal databases support time-varying events so that conventional aggregate functions are extended to be processed with time for temporal aggregate functions. In the previous approach, it is done repeatedly to find time intervals and is calculated the result of each interval whenever target events are different. This paper proposes a method which processes temporal aggregate function queries using time point sequence. We can make time point sequence storing the start time and the end time of events in temporal databases in advance. It is also needed to update time point sequence due to insertion or deletion of events in temporal databases. Because time point sequence maintains the information of time intervals, it is more efficient than the previous approach when temporal aggregate function queries are continuously requested, which have different target events.

• The Journal of Korean Society for School & Community Health Education
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• v.15 no.3
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• pp.95-103
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• 2014

Objectives: To identify work stress and affecting factors of the emergency medical technicians(EMT) and to provide basic data for work circumstance improvement and emergency medical service and duty efficiency elevation. Methods: The data were collected by questionnaire from 635 emergency medical technicians throughout the whole country from August 5 to September 20 2013 and analyzed by using the SPSS(version 18.0) program. Factors affecting stress were analyzed by Multiple Linear Regression Analysis(${\alpha}=0.05$). Results: Mean level of job stress was markedly high in the spot situation(3.43 point), user awareness(3.31 point), burden related to work(3.21 point), role and conflict as a professional job(3.10 point), unsuitable treatment(2.95 point) but was lowest in specialty demand of knowledge and skill(2.76 point). Conclusions: To diminish work stress, understanding and cooperation of the residents and reduction of burden related to work must be improved. Above all, positive interest of 119 and related organ and duty environment improvement will and effort and continuous measure establishment and support and cooperation of the government are needed.

• The KIPS Transactions:PartD
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• v.11D no.1
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• pp.203-210
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• 2004

A new research of geographic information system has been focused on an open architecture, interoperability and extensibility in their design. In order to process huge data, multidimensional data and heterogeneous geographic format data, these research move away from monolithic system to open structure system managing application layer and user interface layer. Nowadays, many developers have used CORBA middleware for the OGIS systems. However, CORBA middleware has some problems that support only a point-to-point communication and takes a long time to transfer sever data to client. Thus, in this paper, we propose a method on modifying a point-to-point communication and implement the efficient communication method. The proposed method that transfer data from sever to client in one connection support a group communication and reduce a transfer time delay.

• Tunnel and Underground Space
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• v.16 no.5 s.64
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• pp.405-412
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• 2006

It is well known that shotcrete is the most important support member for the construction of large underground spaces. Generally, the strength of the field shotcrete is heavily dependent on the field mixing and spraying conditions so that it is different from the strength of the shotcrete mixed in laboratories. As a support member, the early strength of shotcrete unlike concrete is very important to the initial stabilization of the underground spaces. Therefore, the field methods to efficiently test the early strength of shotcrete have been highly required. This paper aimed to verify the pneumatic pin penetration test and the point load test for measuring the early strength of the field shotcrete. As a result of the experiments through a series of uniaxial compression, pin penetration, and point load tests for the range of the early shotcrete strength, two equations to estimate reliably the uniaxial compressive strength by the pin penetration and the point load tests were acquired.