• Journal of The Korean Association of Information Education
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• v.20 no.5
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• pp.451-464
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• 2016

The purpose of this paper is to review recent articles on applying smart learning for elementary students with learning disabilities. The search procedures through the Web-database system were implemented to find the proper research. Finally, a total of 10 articles met the criteria and were included in this review. Each study was analyzed according to the categories of the population, setting, research design, and intervention. The results indicated that research design implemented as case study and single subject design. Results founded strategies applying smart learning leaned too much towards using the skill-based application as learning contents. Based on analysis results, considerations for smart learning for elementary students with learning disabilities were suggested.

• Proceedings of the KSRS Conference
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• 2003.11a
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• pp.783-785
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• 2003

In recent years, the use of video in GIS is considered to be an important subject and many related studies result in VideoGIS. The virtual navigation is an important function that can be applied to various VideoGIS applications. For virtual navigation by video, the following problems must be solved. 1) Because the video route may be not exactly coincided with route that user wants to navigate, parts of several video clips may be required for single navigation. Virtual navigation should allow the user to move from one video to another at the proper position. We suggest the video segmentation method based on geographic data combined with video. 2) From a point to a destination, the change frequency of video must be minimized. The frequent change of video make user to mislead navigation route and cause the wasteful use of computing resource. We suggest methods that structure video segments and calculate weight value of each node and link.

• Journal of Cadastre & Land InformatiX
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• v.51 no.2
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• pp.73-82
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• 2021

According to the government's announcement of the safety management enhancement policy for small and medium-sized private construction sites, the subject of mandatory CCTV installation has been expanded from large construction sites to small and medium-sized construction sites. However, since the existing CCTV at construction sites has been used for simple control for safety management, so research is needed for monitoring of construction sites. Therefore, in this study, three vanishing points were calculated based on a single image taken with a monocular camera, and then a camera matrix containing interior orientation parameters information was determined. And the accuracy was verified by calculating the height of the target object from the height of the reference object. Through height determination experiments using vanishing points based on a monocular camera, it was possible to determine the height of target objects only with a single image without separately surveying of ground control points. As a result of the accuracy evaluation, the root mean square error was ±0.161m. Therefore, it is determined that the progress of construction work at the construction sites can be monitored through the single image taken using the single camera.

• Journal of Biomedical Engineering Research
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• v.25 no.5
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• pp.323-328
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• 2004

The development of group-specific tissue probability maps (TPM) provides a priori knowledge for better result of cerebral tissue classification with regard to the inter-ethnic differences of inter-subject variability. We present sequential procedures of group-specific TPM and evaluate the age effects in the structural differences of TPM. We investigated 100 healthy volunteers with high resolution MRI scalming. The subjects were classified into young (60, 25.92+4.58) and old groups (40, 58.83${\pm}$8.10) according to the age. To avoid any bias from random selected single subject and improve registration robustness, average atlas as target for TPM was constructed from skull-stripped whole data using linear and nonlinear registration of AIR. Each subject was segmented into binary images of gray matter, white matter, and cerebrospinal fluid using fuzzy clustering and normalized into the space of average atlas. The probability images were the means of these binary images, and contained values in the range of zero to one. A TPM of a given tissue is a spatial probability distribution representing a certain subject population. In the spatial distribution of tissue probability according to the threshold of probability, the old group exhibited enlarged ventricles and overall GM atrophy as age-specific changes, compared to the young group. Our results are generally consistent with the few published studies on age differences in the brain morphology. The more similar the morphology of the subject is to the average of the population represented by the TPM, the better the entire classification procedure should work. Therefore, we suggest that group-specific TPM should be used as a priori information for the cerebral tissue classification.

• The Journal of Korean Academy of Sensory Integration
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• v.9 no.2
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• pp.15-28
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• 2011

Objective : The purpose of the study was to investigate effects of sensory integration therapy on self-regulation capacities of children with cerebral palsy. Methods : Subjects of this study were four years old girl and six years old boy, living in P city. Both were diagnosed as diplegia. Research design used in this study is ABA' design for a single-subject research. The experimental period was 12 weeks with 22 sessions of treatment. It was divided into three phase: 6 sessions for baseline phase (A), 14 sessions for treatment phase (B), 2 sessions for baseline phase (A'). There was no treatment on the baseline phases, and sensory integration therapy focused vestibular and proprioceptive stimuli was conducted on the treatment phase. At each session, subjects' behaviors has been recorded with a Digital Camera for 10 minutes and then the occurrence frequency of problematic behavior was identified based on the operational definition of it. Results : In comparison with the baseline phase (A), the occurrence frequency was reduced during the treatment phase for three types of problematic behavior associated with the self-regulatory capacities. The tendency of reducement was maintained during baseline phase (A'). Conclusion : Based on the result, it was implied that sensory integration therapy has a positive effect on the self-regulation capacities in children with cerebral palsy.

• The Journal of Korean Academy of Sensory Integration
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• v.21 no.3
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• pp.54-64
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• 2023

Objective : This study aims to ascertain the effect of oral activity and sensory integration therapy on drool and play using oral toys in children with developmental delays. Methods : The participants of the study were two children (2 years and 8 months) experiencing developmental delays with sensory modulation problems in their oral sensory faculties. The research design was multi-baseline design cross-subjects among single-subject research ABA. Target behaviors were measured by drooling and interest and concentration in play using oral toys through the Goal Attachment Scale (GAS). In the 10 sessions that the children underwent during the intervention period (B), oral activity and proprioception-vestibular sensory integration therapy were applied. Results : The GAS of drooling improved from 0.25 for child A and -0.5 for child B during the baseline to 1.88 for child A and 1.4 for child B during the intervention period. The follow-up was 3 for both child A and child B. Meanwhile, the GAS of play during the baseline was -0.75 for child A and 0.75 for child B, and 1.9 for child A and 1.1 for child B during the intervention period. The follow-up was 1.33 for child A and 2 for child B. Conclusion : Oral activity and proprioceptive-vestibular sensory integration therapy are effective in drooling and playing with oral toys in children with sensory modulation problems in their oral sensory faculties.

• Proceedings of the Korean Society for Bioinformatics Conference
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• 2000.11a
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• pp.86-87
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• 2000

Protein folding is a fundamental problem in structural bioinformatics and so numerous studies have been devoted to the subject. As the most common regular secondary conformation in proteins, helix has been an important ingredient of the protein folding problem. In particular, alanine based polypeptides are widely studied to identify the helix folding process in that the aianine amino acid is known to have one of the highest helix propensities. In principle, intrinsic helix propensities can be obtained from gas-phase measurements where solvent effect is absent. Hudgins et al. studied alanine-based peptides in vacuo using high-resolution ion mobility measurement technique. It was reported that introduction of a single Iysine at the C terminus resulted in the formation of very stable, monomeric polyalanine helices. We also have investigated helix formation in vacuo with different terminal charge conditions; we have found a new type of helix motif, To the best of our knowledge, this type of helix conformation has not been characterized before and we name it as I-helix.

• Journal of Korea Society of Industrial Information Systems
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• v.12 no.4
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• pp.107-118
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• 2007

A single-server queueing model with infinite buffer and batch arrival of customers is considered. In contrast to the standard batch arrival when a whole batch arrives into the system at one epoch, we assume that the customers of an accepted batch arrive one-by one in exponentially distributed times. Service time is exponentially distributed. Flow of batches is the stationary Poisson arrival process. Batch size distribution is geometric. The number of batches, which can be admitted into the system simultaneously, is subject of control. Analysis of the joint distribution of the number batches and customers in the system and sojourn time distribution is implemented by means of the matrix technique and method of catastrophes. Effect of control on the main performance measures of the system is demonstrated numerically.

• Clinical and Experimental Pediatrics
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• v.60 no.10
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• pp.307-311
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• 2017

Necrotizing enterocolitis (NEC) is a devastating condition of hospitalized preterm infants. Numerous studies have attempted to identify the cause of NEC by examining the immunological features associated with pathogenic microorganisms. No single organism has proven responsible for the disease; however, immunological studies are now focused on the microbiome. Recent research has investigated the numerous bacterial species residing in the body and their role in diseases in preterm infants. The timing of initial microbial colonization is a subject of interest. The microbiome appears to transfer from the mother to the newborn, as well as to the fetus. Cross-talk between the fetus and fetal microbiome takes place continuously to generate a unique immune system. This review examined the transfer of the microbiome to the human fetus, and its potential relationship with NEC.

• ETRI Journal
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• v.36 no.4
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• pp.625-634
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• 2014

This paper studies a dual-hop multiple-access relay network where two independent source nodes transmit information to a common destination node with the aid of multiple single-antenna amplify-and-forward relays. Each relay node is subject to an individual power constraint. We focus on the design of distributed beamforming schemes for the relays to support the transmission rate requirements of the two sources. To this end, we first characterize the achievable rate region for this network via solving a sequence of corner point optimization problems proposed in this paper. We also develop several low-complexity suboptimal schemes in closed form. Two inner bounds of the achievable rate region are theoretically shown to be approximately optimal in two special scenarios. Finally, numerical results demonstrate the effectiveness of our proposed approaches.