• Journal of Aerospace System Engineering
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• v.16 no.1
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• pp.40-48
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• 2022

Recent studies have reported about UAV-based disaster rescue system adopting AR technology. Performing a disaster rescue training in an environment similar to an actual disaster site results in high costs and risk of accidents. In this paper, we propose a simulation software using VR technology so that rescuer can safely and inexpensively train the operation of the disaster rescue system. Through the analysis of the existing system, we derived the requirements for virtualizing training, and developed the simulation software using Unreal Engine and Airsim API. Simulation results show that the proposed simulation software can effectively simulate the operation of the conventional disaster rescue system.

• Journal of the Korean Chemical Society
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• v.48 no.4
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• pp.351-357
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• 2004

We have investigated the intensity of Cu 510.6 nm emission line in see-through hollow cathode glow discharge (st-HCGD) for the development of medical Cu vapor laser. In order to acquire the stable plasma in st-HCGD cell at high current, several factors such as current, the length and the inner diameter of cathode tube, the shape of the tube, and the range of the sputtering range were tested. An optimum condition in our st-HCGD cell was obtained at 600 V, 700 mA, 2.3 Torr of Ar gas (100 SCCM), and 40 mm of tube with 4-11-4 mm type cathode design. Also, it was indirectly observed that temperature in the cell could reach more than $1,000{\circ}C$ since Cu cathode was melt at the current more than 700 mA (melting point of Cu, $1084{\circ}C$).

• Analytical Science and Technology
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• v.15 no.6
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• pp.502-508
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• 2002

See-through hollow cathode glow discharge cell has been developed for the trace analysis of metal ions. The systems consists of new glow discharge cell improved the cooling system. In the case of previous type of hollow cathode glow discharge cell, it had been utilized for the trace analysis of metal ions but it had a problem that the plasma becomes unstable by air-cooled device. In this study, the modified hollow cathode glow discharge cell has been developed in order to minimize the problem associated with the air-cooled device. thus the stability of the plasma with water-cooling device has been improved and also the higher plasma temperature has been measured. The fundamental characteristics of modified systems have been investigated. And the discharge parameters, such as discharge pressure, material, and diameter of cathode, have been studied to find optimum discharge conditions.

• Journal of Acupuncture Research
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• v.29 no.4
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• pp.81-91
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• 2012

Objectives : There are numerous methods in treating acne scar. On the contrary there are hardly any cases on treating acne scars through Korean medicine. By observing we compared how much acne scar was treated by scar regeneration acupuncture therapy and micro-needle therapy treatment through observing pre and post case photos, KAGS, KCADI and patient satisfaction. Results : By comparing pre and post procedure through acne scar grade criteria, total of 5 patients showed improvement and could see distinct change in skin comparing case photos. After comparing pre and post procedures, total of 5 patients showed improvements in figures of Korean acne index. 4 patients replied very satisfied and 1 replies satisfied on patient satisfaction survey. Conclusions : After observing patients satisfaction, and comparing case photos, acne scar grade criteria, korean acne index, it can be considered that scar regeneration acupuncture therapy and micro-needle therapy done in our clinic to be valid treatment.

• Journal of information and communication convergence engineering
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• v.8 no.6
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• pp.725-728
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• 2010

The subject collects information and constructs the outside world mainly through the sense of sight, though he cannot help but always see things from the viewpoint of the self-aware ego. While we are able to access the unconscious of which the latent desire is reflected in involuntary images and dream images, the substance of desire cannot be easily accessed due to the censorship of the ego and the super-ego, which makes images of the unconscious nonlinear, and allows us to pursue fantasies for pleasure. The original human desire to record and express visual objects has come true with technological fulfillments, and furthermore, digital technology has realized visual pleasure and desire, through simulation. The images that the unconscious produces and the images that digital technology produces are a visualization of objects by the subject's desire, and the subject realizes his pleasure through a visual fantasy. This study, based on the mechanism of the unconscious and the formal stamps of digital images, explores the interrelationship between the unconscious and digital images, both of which seek pleasure and desire.

• East Asian mathematical journal
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• v.31 no.2
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• pp.189-210
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• 2015

Character means a person's nature and the mind and behavior to lead a desirable life personally and socially. Also character can be changed with education and environment. Therefore character education will be possible to do practice through various educational activities and life experiences in school. In other words, we think that students will get person's character required to lead a desirable life personally and socially beyond what they just learn knowledge and skill, enter the higher schools and succeed one's way. This study accepts merits of existing character education policy through subject(mathematics) education and focus on direction for character education through subject(mathematics) education for systematic and synthetic approach for practice of character education. For this, we will see applicability of the plan for character education in the whole subject education, in particular focusing on cases of character education in mathematics subject.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.15 no.11
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• pp.970-978
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• 2003

This paper aims at suggesting design guidelines for a perimeter-less HVAC system that contributes energy savings. Perimeter-less HVAC system is one that relieves difficulties such as handling mixing loss, uneven radiative environment, and maintenance and repair. It prevents heat load gained through window and outdoor wall without modifying a previously equipped building skin system. In this paper, we conducted a large-scale model experiment to see how the push-pull air flow would handle indoor heat to obtain an optimized perimeter-less design, and then we plan to perform several kinds of CFD (computational fluid dynamics) cases through numerical simulation

• Journal of Advanced Information Technology and Convergence
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• v.9 no.2
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• pp.65-74
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• 2019

In this paper, we describe a new swing analysis system. We design this system to provide various information about golf swings and to help to correct wrong swings. We visualize three-dimensional skeletal information obtained from Kinect through various views. Golfers can see their swing behavior through these views. This system can calculate the similarity between the two trajectories obtained from Kinect to determine the similarity of swing trajectories of different golfers. Input trajectories are resampled to have equal spacing and are performed scaling and translation for accurate trajectory comparison. We have verified the usefulness of the proposed system through various analyzes.

• International Journal of Internet, Broadcasting and Communication
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• v.16 no.2
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• pp.112-118
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• 2024

We Design The problem of underdeveloped areas is emerging as a social problem. Industrialization drove the population to the cities, creating underdeveloped areas. Underdeveloped areas are causing social problems such as population decline and aging. It is necessary to study the continuous tourism development of underdeveloped areas through development and improvement projects. Using social media big data to investigate keywords in underdeveloped areas and see the connection between keywords. The purpose of this study was to conduct core research divided by type and to investigate the keywords of tourism in underdeveloped areas through concor analysis of underdeveloped areas. As a result of the study, keywords were connected for each type of redevelopment, regional development, regional economy, and underdeveloped areas. Through this, the keywords for sustainable tourism in underdeveloped areas were identified. It is hoped that this study will develop sustainable tourism for the keywords of underdeveloped areas.

• Therapeutic Science for Rehabilitation
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• v.3 no.2
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• pp.59-69
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• 2014

Objective : This study was done to see that upper limb reaching task have an effect on stroke patient's upper limb function and self-efficacy. Methods : The object of the study was done to see for diagnosed with stroke man on the thirty-ninth of this month. upper limb reaching task was done to see three times a for 6 week and by a per for thirty minutes. To find changing upper limb function and self-efficacy before-after upper limb reaching task, they were measured using Box & block test and self-efficacy scale. Results : Box & block test and self- efficacy scale were increased mark of revaluation, evaluation result than one of early evaluation result. Conclusion : Through this study, upper limb reaching task applied to stroke patient was found that it improved stroke patient's upper limb function and self-efficacy.