• Journal of the Korean Home Economics Association
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• v.31 no.2
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• pp.205-212
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• 1993

In order to research the display of the apparel store, 164 women's clothing in Taegu were investigated, from September 1. to October 31.1991. The result was as follows; 1. The perpendicular style of the show window glasses is widely used regardless of the store types. 2. The show window story is most frequently found at street-level in Taegu brand stores, but there are a few multi-storied show windows in National bland stores. 3. The open style background is used in a great part of Taegu brands, but the semi-open style is widely used in most National blands. 4. The arrangement of simular colors is used in a great parts of National brands, but the arrangement of different colors is used in many Taegu brands. 5. The base light and spot light is used at a high rate regardless of the stores, but the mannequin is more often used in National brands and Taegu brands.

• Proceedings of the KIEE Conference
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• 2002.11b
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• pp.323-325
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• 2002

Because of the progress of civilization, outdoor electricity facilities as a street light, signal light and standing signboard etc. have being increased rapidly. Therefore the application of underground distributing wires is largely expended. In this paper, capacitance for the kinds of 600V CV cable is measured and leakage current for underground cable is calculated. The measurement of capacitance is done which there are defects of cable sheath or not Calculated leakage current is applied to choose the circuit breaker and the like.

• Journal of information and communication convergence engineering
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• v.21 no.3
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• pp.216-224
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• 2023

Smart lighting systems have become increasingly popular in several public sectors because of trends toward urbanization and intelligent technologies. In this study, we designed and implemented a web application platform to explore and monitor data acquired from lighting devices at Thammasat University (Rangsit Campus, Thailand). The platform provides a convenient interface for administrative and operative staff to monitor, control, and collect data from sensors installed on campus in real time for creating geographically specific big data. Platform development focuses on both back- and front-end applications to allow a seamless process for recording and displaying data from interconnected devices. Responsible persons can interact with devices and acquire data effortlessly, minimizing workforce and human error. The collected data were analyzed using an exploratory data analysis process. Missing data behavior caused by system outages was also investigated.

• Journal of the Korean Society of Costume
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• v.65 no.6
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• pp.112-132
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• 2015

Banya was a concubine slave of Shindon(辛旽) who was a powerful monk in late Goryeo Dynasty, as well as the mother of King Woo(禑王), a successor of King Gongmin(恭愍王). This study was undertaken to investigate the sources of costume for Banya. The study focused on the features of Buddhist service costume, street wear, and daywear for common women's costume during the prime age of the Buddhist culture. The study looked into Buddhist paintings, old documents, advanced research, and relics. There are three characteristics of historically investigated Buddhist service costume for Banya: Dallyeongpo(團領袍), long Jeogori made with black Ra(羅), and Jeogori with a long scarf. Skirt, under Jeogori, under skirt, Cho, Ra(羅), Neung (綾), Dan(緞), patterned ramie(紋紵), and Tapja(塔子) were included in all Buddhist service costume. And, street wear consisted of Women's Dapho(婦人搭忽), long Jeogori, skirt, underwear and black Ra beil(蒙首). Daywear consisted of Banbi(半臂), long Jeogori, and skirt, underwear made with cheap fabric, Ju(綢), ramie, and imported cotton. Plumper hair, silver comb and Biyeo, lining of light pink-colored thin silk(小紅薄絹), bronze openworked ornament that fixed the outerwear's opening, bronze needle case, Sutra box and heated gemstone could be matched for the Buddhist service costume. Bronze and heated gemstone could be used for ornaments of street wear and daywear. The investigation of ornaments was carried on by referring to presentation of overseas collections. Considering the limitation of the study on Goryeo costume due to the lack of research material, future studies including much more relics in oversea collections needs to be undertaken.

• Journal of the Korean Institute of Rural Architecture
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• v.15 no.3
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• pp.17-24
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• 2013

This study examined and investigated architectural characteristics such as the use of buildings, the number of layers, and structure, and roof landscape characteristics such as roof types, materials, and color in rural villages which were located on the street on the assumption that the landscape of rural villages should be managed by considering visual aspects. The results were as follows. The commonest frequency was found in 'residence'(2/3) for the use of buildings and 'masonry structure'(2/3) for the structure. 'Wood structure' and 'light gauge steel structure(prefabricated structure)' were also commonly found. The results suggest that although many rural houses have partially improved by agricultural and fishery development projects and garden suburbs has been increased by city residents' desire for rural life, there have been still many old houses. Frequently used roof types were a gambrel roof and a hipped roof. Roof materials were mixed in several materials such as tiles, slate, panels, color steel plate, reinforced concrete, and asphalt shingles. Roof color was also mixed in several colors such as reddish N7 and N0.5 of Neutral color, 10R3/6 and 10R3/10 of R color, 7.5B4/10 and 7.5B7/8 of B color and 5G8/6 of G color. The result suggests that roof color impedes the landscape of rural villages on the street. Based on the results, some roofs of rural villages were improved by the support of the government or the local governments but there are still many old roofs. The mixture of improved roofs and old roofs mainly contributed to impeding the landscape of rural villages and it was probably caused by the lack of systematic landscape plans by individual improvement of buildings. Therefore, it is necessary to devise systematic landscape plans in consideration of local identity and neighboring environment. In particular, the guideline for roof color influencing a street landscape should be established.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.1
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• pp.233-239
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• 2015

The demand of remote control and monitoring for efficiency and applications of LED streetlight is increasing continuously because the demand of LED streetlight was increase last few years. Existing street light remote control system is wired using a power line network. The wireless connection exists, but due to its low data transmission rate, it cannot support specialized applications. It can only support simple control and monitoring. In this paper, we propose a system that uses a IEEE 802.11s wireless mesh network based on WLAN, as a backbone network for remote control and monitoring of the LED street lights along with other specialized applications. Using the wireless mesh network for remote control and monitoring the LED street lights, the same can be used to act like a public Wi-Fi access point. We have designed Wi-Fi integrated LED streetlight controller and implemented our system. We evaluated the performance of our system on a real test bed. Our proposed system is expected to perform the role of a U-city infrastructure by utilizing the wireless mesh network.

• The Journal of the Korea institute of electronic communication sciences
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• v.16 no.5
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• pp.867-878
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• 2021

Recently, there has been active research on smart street lamps that can collect real-time traffic data and provide traffic information by attaching images and radars to road lighting facilities. Smart street light technology can detect, identify, and provide dense information compared to existing technologies. In order to effectively utilize the smart streetlight as a high-resolution information delivery medium, a branch-type operation strategy that is different from the existing centralized operation strategy is required. This study presents dynamic information delivery strategies, release strategies, and their criteria for various purposes in a spatial range, separated by the context before and after the occurrence of smart street lights-based accidents. Through this, it is expected that smart road lighting facilities can be used more effectively.

• Design & Manufacturing
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• v.15 no.3
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• pp.50-55
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• 2021

Solar power generation, which is one of the methods of using solar energy, has a high possibility of practical implementation compared to other renewable energy power generation, and it has the characteristic that it can generate as much power as needed in necessary places. In addition, maintenance is easy, unmanned operation is possible, and power management can be performed more efficiently if operated in a hybrid method with existing electric energy. Therefore, in this study, numerical analysis using a computer program was performed to analyze the efficient operation and performance improvement of solar energy of the rotating condensing type solar LED street lamp. As a result, the two-axis tracking type could obtain 15.23 % more electricity per year than the fixed type, and additional auxiliary power generation was required for the fixed type by 19 % per year than the tracking type. As a result of computational fluid dynamics(CFD) simulation for PV module surface temperature prediction, the The surface temperature of the Photovoltaics(PV) module incident surface was predicted to be about 10℃ higher than that of the fixed type.

• Journal of the Korean Solar Energy Society
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• v.24 no.2
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• pp.1-7
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• 2004

In this paper, the new improved method for photovoltaic system was studied available for a lighting load by measuring the state of charge of lead-acid batteries. Photovoltaic systems has been evaluated as one of the most new and renewable energy and especially, the Stand-Alone Photovoltaic system has been used to a street light, a road sign light, an air caution light, an emergency call. Many Stand-Alone PV system are installed by a group. Although the pre-installation cost of PV system is high and it has not been operated due to the absence of optimal management standards. In this paper, it is proposed a new operating method by the measurement of lead-acid battery's SOC with a Ah balancing.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.37 no.3
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• pp.314-321
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• 2024

Low road lighting is a lighting device that complements the shortcomings of existing pillar-type street lights. It is a lighting device that emits light from the side of the road surface and adjusts the luminance of the road surface like a light carpet. In this paper, to achieve full commercialization, we analyzed the luminance of the installed road surface and studied whether lighting could replace existing road lighting. In this study, the LMK (Luminance Measurement Camera) LABSOFT program was used to measure and analyze the surface luminance of road lighting, and the RELUX program was used to evaluate and analyze the simulation performance to determine light-based lighting conditions. A study was conducted to determine whether replacing pillar-type road lighting with low-level road lighting in a real environment would ensure comfortable and safe night vision for drivers at night.