• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2000.11a
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• pp.94-99
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• 2000

When operating NC lathe, gear box which is equipped with gear train and spindle sometimes generates loud noise and excessive vibrations. In order to identify their causes, In this study, torsional and lateral vibration characteristics including critical speeds of the gear train-spindle system are first analyzed by using torsional and lateral vibration models of the gear train and shafts. Natural frequencies and modes of the gear box structure are also analyzed by impulse hammer test. Furthermore, measured vibration and noise signals are analyzed and compared with theoretical analysis results. At last it is concluded that the cause of the excessive mise and vibration is the resonance between gear meshing frequency including its side bands, shaft bending and torsional vibration frequencies, and the natural frequencies of th gear box structure. Consequently the noise and vibration levels are greatly reduced by avoiding resonance between them through the redesign of the gear module.

• Transactions of the Korean Society of Mechanical Engineers
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• v.14 no.1
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• pp.13-22
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• 1990

A general analysis method is proposed for analysis of the superposed structures with geometric and material nonlinearities. It is presumed that no friction occurs between structures. It utilizes a shell element for the geometric and material nonlinearities and imposes various deformation constraints for the contact and interaction between structures. To show the reliability and effectiveness of this method, superposed cantilevers for which exact solutions can be obtained and holddown spring assemblies which are now used in PWR reactors are chosen as analysis models. The results of analyses were compared with exact solution in the case of cantilevers and with test results in the case of holddown spring assemblies. The analysis results obtained by this method showed good agreement with the reference values.

• Korean Institute of Interior Design Journal
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• v.21 no.2
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• pp.65-73
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• 2012

Interior design generally falls behind to architecture in its concept of conservational value as interior designs are more to the simple style or trend. Therefore, This study aims how the society and the major events in the 1960's and individual and group desires are portrayed in movies through the eyes of movie directors, and further how the concept of spaces and the features of the spaces are displayed. First, This paper analyzes the movies in the 1960's, especially the expressionism and psychological zeitgeist in "The Housemaid" directed by Kim Ki-Young that can be logically analyzed, following the signs in the movie. Secondly, It analyzes the images captured the scenes that best describe the underlying theme of the movie, revealing the features of the different spaces for different scenes. Moreover, It analyzes the correlation of the change in value, desire, and space of the time in the 1960's to see the feature of the spaces in the 1960 are represented in the movie. In conclusion, the realistic expressionism movie of Kim Ki-young's 'Housemaid' showing the everyday life of a family against the background of industrial capitalism reveals the intimate desire of the time with the director's perspective on the history. With Mise-en-Sc$\grave{e}$ne, we can understand the space structure of the time, the view on space structure and further the effect of modernization project on urban residential area.

• Cartoon and Animation Studies
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• s.47
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• pp.149-170
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• 2017

which was first shown as TV series in 1995 has been highly praised until now successful animation that reflected human psychology and ideology. first gained popularity in Japan and spreaded into global animation market. Characteristics of can be summarized as mechanical design, realistic military mise-en-scene, and philosophical view of the world based on the bible. All works reflect the philosophy and ideology of the writer/creator, but reflects various form of ideology. Furthermore, 's ambiguous and vague plot made the fans to discuss and analyze about the work, which brought secondary marketing effect. In this report, the ideology reflected in will be analyzed and understand how these ideologies were reflected in the work. By analyzing religious, psychological and philosophy ideologies in , ideology can be proved as success factor of animation films.

• The Journal of the Acoustical Society of Korea
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• v.30 no.6
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• pp.308-314
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• 2011

This paper presents techniques for estimating directions of multiple sound sources ranging from $0^{\circ}$ to $360^{\circ}$ using circular probability distributions having a periodic property. Phase differences containing direction information of sources can be modeled as mixtures of multiple probability distributions and source directions can be estimated by maximizing log-likelihood functions. Although the von Mises distribution is widely used for analyzing this kind of periodic data, we define a new class of circular probability distributions from Gaussian and Laplacian distributions by adopting a modulo operation to have $2{\pi}$-periodicity. Direction estimation with these circular probability distributions is done by implementing corresponding EM (Expectation-Maximization) algorithms. Simulation results in various reverberant environments confirm that Laplacian distribution provides better performance than von Mises and Gaussian distributions.

• Journal of the Korean housing association
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• v.18 no.1
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• pp.27-34
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• 2007

The purpose of this study is to examine the characteristics of the plan of fishing village house in the Shikoku district. The research was carried out by field survey and measurement of the traditional house and street system in Higashimachi area of Tomoura. The results of this study are as follows. The traditional house of Higashimachi area is to be taking the plan of Machiya form that is the residence form of a city without being related a fishing village. And the street system is as orderly comparatively as a city. This is not the thing as that is surprised when we think the fact that Higashimachi area has maintained close relation historically with Kyoto, Osaka, etc. However, as for the house of Higashimachi area, the scale is smaller in comparison with Machiya, there is a fundamental difference in terms of the house for the exclusive use of residence. Machiya is the dual constitution of business space and life space. To it the house of Higashimachi area is doing the unitary constitution. Mise is the original opening device (a kind of the front door fitting) of traditional house of Higashimachi area and has the functions that complement narrow space and of offer community space. Finally, the traditional house in this area is equipped with all the residence functions of necessary minimums, although the scale residence is small. It is said that this is the case of a 'small residence' in a Japanese residence.

• The Journal of the Korea Contents Association
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• v.8 no.11
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• pp.103-114
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• 2008

The purpose of this study is to find the theatrical style in Dogville, which was the film directed by Las Von Trier. There are a lot of Brecht Epic theatre styles in plot and mise en scĿne in the film. This study try to divide into three parts of them. First of all, the film uses the defined space as a theatrical stage in the one act play. Secondly, there are some apparatuses which was presented as a stagy style in the film. From these apparatuses, the audiences can get the human's life dialectically collided against a sense of alienation. Finally, the film shows up the mime and non-diegetic sound to get an epical stream of Brecht's style. By using these elements to construct all of the film structure, the audiences can establish their one subjecthood against the idealogical empathy.

• Journal of Digital Contents Society
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• v.18 no.5
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• pp.849-858
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• 2017

With the fast improvement of software and hardware technology of Virtual Reality, VR(Virtual Reality) film get attention for the new possibility of future film. Already, the production of virtual reality film festivals and Hollywood films is highly active, but it is still poorly related to virtual reality films in Korea. Due to this, this research analyze VR film with Realism films and Post-modernism films in four aspects that are film's frame(Mise-en-$Sc{\grave{e}}ne$), shot(montage), vew point and interactivity to deduct characteristics of VR film. Moreover, we also deduct an esthetical characteristic of VR films beyond the Realism films and Post-modern Films through analysing various VR films. This can be said as 'Digital Realism' that is come from the viewers' positive interaction and realization of Realism through Virtual Reality technology. There will be a successful development of VR film based on this research that analyse suitable directing method for Virtual Reality environment. At last, this research focused on characteristics of digital realism aspect for HMD based first person view VR animation .

• The Journal of the Korea Contents Association
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• v.21 no.7
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• pp.105-118
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• 2021

The purpose of this study is to explore the American Youth Film Director Damien Chazelle and his cinema world. Chazelle as a youth director directs three movies as (2014), (2016), (2018) in Hollywood, and represents youth directors in Hollywood. For this study, adopt two research methodologies which are 'Auteurism' and 'culture studies', and explore traits of esthetics, subject and context meaning by analyzing representative three movies. Lastly examines significance of his movies in Hollywood history. This study concludes that Chazelle is a 'Auteurism director of self-reflexivity' who has three things in common as 'narrative: success myth', 'mise-en-scene: Chazelle's world', 'self-reflexivity: Auteurism film directing'. Youth film director Chazelle is opening up the future of Hollywood as a 'Auteurism film of self-reflexivity' and the creative film directing of the youth generation.

• Journal of Korean Theatre Studies Association
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• no.48
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• pp.359-384
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• 2012

The purpose of this study was to explore the theatrical aesthetics of the performances which was produced by the theater director, Yang Jung-Ung. Yang has been one of the most influential directors working in Korea in the last 15 years. He has put up performances all over the world with the theater members from his company called Yohangza, which was founded by him in 1997, and working as the director, portrayed his style of the theatrical aesthetics through the works of its plays and musical products. In 2012, this company performed A Midsummer Night's Dream at Shakespeare's Globe Theatre. A Midsummer Night's Dream was invited to be staged at the Barbican Center in 2006. In the same year, it received the grand prize and the Audience Choice award at the Gdansk International Shakespeare Festival in Poland. The musical products like A Good Woman from Seoul and the modern Opera Wozeck are representative works of Yohangza, which are known for a unique way of exploring the meaning of life. The 2009 plays Hamlet and Peer Gynt represent Yohangza's simpler yet more insightful theatrical style. Peer Gynt, which debuted at the LG Art Center, made headlines for its innovative staging. It received the grand prix, Best Director and Best Stage Art awards at the 2009 Korea Theater Awards. Yohangza's plays show two-side "image-based" works. The company drastically reduced verbal lines and enriched the plays with Korean sentiment and aesthetics, but their scripts contained many poetic lines full of overtones. They showed a theatrical mise-en-scene of images, energetic dance, songs in chorus and percussion. For example, Korean sentiments were subtly blended into the two Shakespeare's plays, A Midsummer Night's Dream and Twelfth Nights. Their performance combines music, mime, song and dance to create an exhilarating adaptation of Shakespeare's inventive and glittering comedy. In addition, the style of Yohangza Theatre Company is a collision of the past and the present: a reworking of existing Korean styles and themes infused with contemporary elements and full of unique exploration in the plays.