• Journal of the Korea Fashion and Costume Design Association
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• v.21 no.3
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• pp.137-147
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• 2019

The purpose of this study, I investigate the new trend, 'new-tro', through the music video costumes of young generations, and analyze the meaning and characteristics of 'new-tro'. The research method is, select 30 music video with new-tro fashion style on the music sites, and the fashion styles were analyzed in 11 music videos checked and selected by 100 students. As a definition of the term, 'retro' refers to a phenomenon in which the past reappears in modern time, and 'new-tro' is a new retro trend, a social phenomenon that enjoys the old with a modern sense, and is a compound word of 'new' and 'retro'. 'new-tro' is a modern reinterpretation and rebirth of the past style, and 'fu-tro' is a style of coexistence between the past and the future. In the music video, fashion is a media language and cultural code, and it creates trend or new fashion, that communicates with the public, stimulating emotions. As a result of the research, the common trend phenomenon expressed in the music video costume of 'new-tro' trend which appeared in 2000s is as follows. 1. New-tro style starts with items that were famous in the past. 2. It is one of postmodern marketing using color, print and logo. 3. It spreads quickly by the influence of culture that is characteristic of the Internet and SNS world. 4. It is bottom up propagation phenomenon of street fashion. 5. It is a time game where modern people connect the past with the present. 6. "new-tro" continues to evolve for that time, based on 'retro'. New-tro, an evolutionary version of the 21st century retro wave. and it is a key to marketing effectiveness as a sympathetic elements of 1020 generations with the reproduction of memories.

• Journal of Electrical Engineering and Technology
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• v.13 no.3
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• pp.1304-1316
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• 2018

An adaptive sliding-mode observer for speed estimation in sensorless vector controlled induction machine drives is proposed in this paper to balance the dilemma between the requirement of fast reaching transient and the chattering phenomenon reduction on the sliding-mode surface. It is well known that the sliding-mode observer (SMO) suffers from the chattering phenomenon. However, the reduction of the chattering phenomenon will lead to a slow transient process. In order to balance this dilemma, an adaptive exponential reaching law is introduced into SMO by optimizing the reaching way to the sliding-mode surface. The adaptive exponential reaching law is based on the options of an exponential term that adapts to the variations of the sliding-mode surface and system states. Moreover, the proposed sliding-mode observer considering adaptive exponential reaching law, which is called adaptive sliding-mode observer (ASMO), is capable for reducing the chattering phenomenon and decreasing the reaching time simultaneously. The stability analysis for ASMO is achieved based on Lyapunov stability theory. Simulation and experimental results both demonstrate the correctness and the effectiveness of the proposed method.

• Current Optics and Photonics
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• v.7 no.6
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• pp.755-760
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• 2023

In this paper, an illumination optical system that can mitigate the saturation phenomenon in the center of an image (caused by the typical flexible-endoscope illumination system using LEDs with Lambertian light distribution) is designed. When an LED with Lambertian light distribution is used as a light source, the amount of light in the center of the endoscopic illumination system is relatively high, compared to the periphery, causing saturation in the image. Since this phenomenon causes difficulty in detecting the patient's lesion, it is necessary to find a lighting-system design that can alleviate the saturation phenomenon. Therefore, in this paper a lighting system with bat-wing light distribution, which can lower the intensity at the center and secure the maximum amount of light at the maximum light distribution angle, is designed. In addition, to check the performance of the designed lighting system, a simulation of illumination and luminance is conducted for a system using a common aspherical lens with otherwise the same components. As a result, it is confirmed that the lighting system designed in this paper effectively reduces the luminance value at the center and secures more luminance values at the periphery than the familiar lighting system.

• Journal of architectural history
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• v.25 no.1
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• pp.69-83
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• 2016

Classic rationalist architecture came to play an important role in modern architectural discourse in the 1970s. But it has declined since the death of its most representative architects Aldo Rossi and O. M. Ungers. However, the phenomenon to be noted is that a new momentum was brought to the German architectural scene through some remarkable achievements by the disciples of Ungers after 2000. This study aims to read this phenomenon on the topography of german architecture and to catch out what potential it has to create balance in the international architectural debate. It is not the aim to analyze a single architect in detail, but to compare some important architects like Hans Kollhoff, Max Dudler, Eun-Young Yi and Uwe $Schr{\ddot{o}}der$. And further the study will try to give an overview of how far this phenomenon can change the topography of the German architectural scene. The buildings that have been examined here are Daimler Chrysler Building, Grimm Zentrum, Stuttgart City Library, and Haus Hundertacht. Through this study, it was found that some architects continue the attitude and the architectural languages of O. M. Ungers and develope their own unique architecture. And this phenomenon has the potential to influence todays architectural debate on a global scale.

• Transactions of the Korean Society of Automotive Engineers
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• v.15 no.1
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• pp.154-161
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• 2007

Hot spot phenomenon that occurs, during judder vibration, is locally concentrated heat due to friction between brake disk and pad. It is important to understand the reason behind hot spot phenomenon, for reduction of judder vibration. In this experimental study, experiments were performed in accordance with rotation speed of brake disk, pressure of master cylinder and pad length for achieving different aspects of hot spot phenomenon. Temperature distribution of hot spot was obtained by using the infrared camera. As the hot spot occurred, vibration was measured and frequency analysis was performed. Finite element analysis of thermal deformation of disk was performed by using temperature distribution that was achieved by experimental results. And mode shapes of disk was analyzed by finite element analysis and compared with experimental results. It was observed that the excitation frequency band of frictional contact and frictional force mainly affects the hot spot phenomenon.

• Korean Journal of Human Ecology
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• v.9 no.2
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• pp.53-63
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• 2006

The purpose of this study is to analyze the background and characteristics of fashion in wanna-be phenomenon. The primary source of data has been a collection of recent books, news repots, many articles from various kinds of mass media and fashion internet cite. The results of this study can be summarized as follow. First, The wanna-be phenomenon can be divided the background into three parts : change to entertainment society, increase of mass consumption, increase mutual communication with star and fan. Second, the function of fashion in wanna-be phenomenon can be divided with the following: the function of self-expression, guide book of trendy lifestyle, and play for pleasure. Third, fashion style in wanna-be phenomenon can be divided with the following : chic & gorgeous style, sexy casual & chav style, bohemian mix & match style.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.27 no.10A
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• pp.951-961
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• 2002

In general, there is discontinuity phenomenon like a black screen and an irregular sound for repeated play of a finite digital stream. In this paper, for repeated play we analyze the relation between source and stream time causes this phenomenon. We obtain the time relation between video frame rate, audio frame rate, and TS packet transmission rate to eliminate this phenomenon. Using this time relation, we propose a new generation method of elementary stream (ES) and transport stream (TS) to eliminate discontinuity phenomenon. The test results of the generate ES and TS using the proposed method show that the discontinuity phenomenon can be eliminated for repeated play of a finite proposed stream.

• Journal of Pharmacopuncture
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• v.12 no.1
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• pp.103-108
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• 2009

Objectives : This study is to report the effect of Pharmacopuncture therapy on a patient suffering from the pain and cold intolerance of hand caused by Carpal tunnel syndrome with Raynaud's phenomenon. Methods : We had treated the patient diagnosed as Carpal tunnel syndrome with Raynaud's phenomenon by Sweet BV and CF pharmacopuncture. We injected Sweet BV and CF into acupuncture points on both hands - Sweet BV into Baxie (EX-UE9), CF into Naegwan ($PC_6$) and Daereung ($PC_7$). And then we evaluated her symptoms by VAS (Visual Analog Scale). Results : Clinical symptoms about Carpal tunnel syndrome with Raynaud's phenomenon were remarkably improved by Sweet BV and CF Pharmacopuncture. Conclusion : Therefore, we concluded that pharmacopuncture therapy - Sweet BV, CF etc. - may be useful to treat Carpal tunnel syndrome with Raynaud's phenomenon.

• Korean Institute of Interior Design Journal
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• v.22 no.6
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• pp.79-87
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• 2013

The purpose of this study clarifies an expression characteristic of the phenomenal space. The architecture is an interface between human and nature. Nature presents herself as phenomena. Thus, the phenomenal space should be approached as the essence of architecture that is to accommodate nature. Phenomenon is related to everyday life and shares flow naturally within it. The phenomenon and everyday life form a relationship through the mediating elements that are time, place, and image. If these mediating elements are developed as spatialized elements, time becomes the converse, place becomes the overlap, and shape becomes the revealing. Also, spatial components that are substituted with these elements are void/solid, form, and materials. The relational characteristics of phenomenal space can be identified through these, and such characteristics are one-ness, continuity, and coincidence of opposites. Phenomenal space is expressed with spatial tones and accepted as spatial atmospheres. For the analysis, 15 works of swiss architects were selected to which spatial elements were applied. And It were composed that analysis by arranging these components as the relational network found that expression characteristics. Trough the analysis, It was found that expression characteristics of phenomenal space of the architecture of Swiss architects were prototypicality, primitiveness, and originality. As a results, It is considered that the role of the space that contains the value of everyday life, the value of the phenomenon is necessary.

• Journal of the Korean Society of Costume
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• v.52 no.8
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• pp.73-85
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• 2002

Decadence is a phenomenon that people express fear from their inside, so unsound aspects appear in the social culture when the existing society is about to be collapsed. This study covered the cultural and aesthetic meaning and the role of decadence by examining the concept and phenomenon of it and analyzing the real case of expression appeared in the modern fashion. Characteristics of decadent phenomenon were divided into sexual corruption, ideality, cynicism and extreme technique, and decadent expression appeared in the fashion images was examined based on the divided phenomenon. Main results are as fellows. People bring the incidents that animals go through into relief, sticking to animal instinct when the society is on the decline. At that time, sexual decadence becomes remarkable, so voyeurism by exposure in their dress is deepen, revealing abnormal sexual propensity with bisexual tendency and sexual perversion. The real facts and appearance of people are revealed by transforming and distorting bodies for the fear of humans inside suppressed in the fin-de-siecle mood. The sense of alienation and helplessness of people anxious about the future is developed to cynicism expressing the uncertain emotion in their dress, and the formative methods of dismantlement. destruction and abrasion appear to form sickly images in the gloomy and cold mood. The intention of affirmative decadence is realized by mixing heterogeneous styles and producing new things. Extreme decorative technique and gorgeousness are even mysterious and show the highest refinement.