• Journal of Digital Contents Society
• /
• v.11 no.4
• /
• pp.473-478
• /
• 2010

Applying ubiquitous computing technology continues to develop services and to use it also has developed a variety of devices. However, classification of ubiquitous computing service (UCS) is ambiguous and evaluation criteria of UCS are difficult to be applied. In this paper, we define the characteristics and classification of UCS and based on evaluation criteria are derived. In addition, we propose a checklist of evaluation criteria to support the user's choice using UCS.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2003.05a
• /
• pp.211-214
• /
• 2003

Since the number of mobile Internet users has been increasing rapidly around the world, the mobile business which is a variety of applications of mobile Internet has gained attention among the related industry and academics. However, most researchers mainly focus on the issues concerning the trend, forecast, technoloies, and demographic characteristics of mobile Internet services. Further, only mobile Internet users have participated in surveys, excluding network operators and contents providers. The purpose of this research is to project the evolution of mobile business and identify its critical success factors. The results of this research are from the analysis of data collected not only from mobile Internet users but also from network operators and contents providers.

• Proceedings of the Korea Contents Association Conference
• /
• 2008.05a
• /
• pp.176-181
• /
• 2008

This study aims at providing developmental process for art and cultural space putting into an alternative in pursue of territorial arts and applicable tourist resources by bridging connectivity between arts and tourism. It overviews art promotional policies by a variety of associations since the end of 1990s, focusing on studios for art creation, while attempting to develop effective and practical operational process by analytically identifying in detail various touch points possibly occurrently in the field of arts and culture.

• MALSORI
• /
• no.60
• /
• pp.125-144
• /
• 2006

W3C announced a standard software architecture for multimodal context-aware middleware that emphasizes modularity and separates structure, contents, and presentation. We implemented a distributed multimodal interface system followed the W3C architecture, based on SCXML. SCXML uses parallel states to invoke both XHTML and VoiceXML contents as well as to gather composite or sequential multimodal inputs through man-machine interactions. We also hire Delivery Context Interface(DCI) module and an external service bundle enabling middleware to support context-awareness services for real world environments. The provision of personalized user interfaces for mobile devices is expected to be used for different devices with a wide variety of capabilities and interaction modalities. We demonstrated the implemented middleware could maintain multimodal scenarios in a clear, concise and consistent manner by some experiments.

• Journal of the Korean Society of Food Culture
• /
• v.9 no.3
• /
• pp.259-266
• /
• 1994

This study was done to evaluate the effects of grape variety, pH and sugar contents on textural and sensory properties of grape pectin jelly. As a gelling agent, pectin 1% was selected due to highest sensory scores in preparatory experiments and also nutritional and economical reasons. To get the proximate composition of grape extract, moisture, pH, reducing sugar, and total titratable acidity was measured. Grape pectin jellies, made by 12 different recipies, were tested by sensory and instrumental evaluatoin. The results were as follows; 1) Hardness and chewiness were lowered in grape jelly which has lower pH and lower sugar contents. 2) People preferred grape jelly which has lower hardness, brittleness and sweetness, and higher sourness. 3) Comparing overall quality, Recipe C1 in Jelly 1 and recipe B1 in Jelly 2 were chosen as best. 4) Sensory hardness showed positive correlation with instrumental hardness, brittleness and chewiness.

• Journal of Korea Multimedia Society
• /
• v.11 no.6
• /
• pp.883-890
• /
• 2008

It becomes enabled to provide variety of multimedia contents through mobile service with the development of high-speed 3rd generation mobile communication and handsets. MMS (Multimedia Messaging Service) can be displayed in the presentation format which is unified the various multimedia contents such as text, audio, image, video, etc. It is applicable as a new type of ubiquitous learning. In this study we propose to design a mobile learning system by providing profiles which meets the standard of CC/PP and by generating multimedia messages based on SMIL language through the adaptation steps according to the learning environment, the content type, and the device property of learners.

• International Journal of Contents
• /
• v.2 no.3
• /
• pp.27-32
• /
• 2006

We present an effective algorithm for automatic tracing of retinal vessel structure and vascular landmark extraction of bifurcations and ending points. In this paper we deal with vascular patterns from RGB images for personal identification. Vessel tracing algorithms are of interest in a variety of biometric and medical application such as personal identification, biometrics, and ophthalmic disorders like vessel change detection. However eye surface vasculature tracing in RGB images has many problems which are subject to improper illumination, glare, fade-out, shadow and artifacts arising from reflection, refraction, and dispersion. The proposed algorithm on vascular tracing employs multi-stage processing of ten-layers as followings: Image Acquisition, Image Enhancement by gray scale retinal image enhancement, reducing background artifact and illuminations and removing interlacing minute characteristics of vessels, Vascular Structure Extraction by connecting broken vessels, extracting vascular structure using eight directional information, and extracting retinal vascular structure, and Vascular Landmark Extraction by extracting bifurcations and ending points. The results of automatic retinal vessel extraction using jive different thresholds applied 34 eye images are presented. The results of vasculature tracing algorithm shows that the suggested algorithm can obtain not only robust and accurate vessel tracing but also vascular landmarks according to thresholds.

• International Journal of Contents
• /
• v.15 no.3
• /
• pp.13-20
• /
• 2019

This systematic review compared Korean and international researches on sensory integration therapy in patients with autism spectrum disorder (ASD). We targeted studies on sensory integration therapy for patients with ASD published from January 2000 through July 2016. Specifically, we analyzed the papers that used the phrase 'sensory integration, autism' as keywords. There were fewer Korean studies of sensory integration therapy, and the diversity of research topics were limited, focusing mainly on case studies. There was no difference between the internal/external validity of Korean and those of international studies targeting the clinical environment and patients. Further study of a variety of aspects of sensory integration therapy is needed to gain high internal/external validity.

• Journal of the Korea Society of Computer and Information
• /
• v.24 no.4
• /
• pp.73-81
• /
• 2019

Various 3D contents are being developed using Unity 3D game engine. In this paper, the 3D content of horseback riding game, the first VR game in the country, is designed and developed. The existing riding simulator is investigated and compared to the VR riding game developed. We consider various games developed using Unity 3D game engine and serve previously developed tangible games. It is expected that development of VR riding games will prepare a new chapter in VR experience-type games. We propose the content development environment and scenario of VR riding game and present the main algorithms and main modules for real-time synchronization. The developed riding game contents are deployed to the riding system and are operated for commercial use in conjunction with the riding device. Through monitoring VR riding system, problems are derived and improvement measures are proposed. We offer a variety of additional development options to make the game more realistic in the future.

• KOREAN JOURNAL OF CROP SCIENCE
• /
• v.29 no.4
• /
• pp.314-320
• /
• 1984

Effects of phosphorous fertilizer on the growth habit and yield of monoculm and branch types of two leading sesame varieties was investigated. The photosynthetic rate of at each growing stage was high at the flowering stage. The photosynthetic rate of monoculm sesame variety, Pungnyeon was high prior to flowering stage, while the Kwangsan variety, branch type was high after the flowering stage. The level of phosphate were most effective in increasing photosynthesis when standard level of fertilizer was applied in both varieties. Kwangsan variety showed higher photosynthetic rate per unit area, higher NAR, and CGR and higher LAR and RGR at the maximum flowering stage than the Pungnyoeon variety. Those characters attained maximum level when standard levels of phosphorous fertilizer were applied. The protein and oil content of seeds were higher in Kwangsan variety compared with Pungnyeon. However, the carbohydrate of seeds was high for Pungnyeon variety. The highest protein content was attained when standard level of fertilizer were applied. The oil content appeared to increase as the level of applied fertilizer increased. The results suggest that the vegetative growth and seed yields of sesame may be enough with present level of fertilizers. However, higher amount of phosphorous fertilizer may be required to increase the oil content of sesame seeds.