• The Bulletin of The Korean Astronomical Society
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• v.30 no.2
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• pp.53.1-53.1
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• 2005

• Journal of the Korea Society of Computer and Information
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• v.22 no.11
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• pp.49-55
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• 2017

Recently, for safety of people, there are proposed so many technologies which detect density of people at the specific place or space. The representative technology for crowd density estimation was using image analysis method from CCTV images. However, this method had a weakness which could not be used and which's accuracy was lower at the dark or smog space. Therefore, in this paper, to solve this problem, we proposed a user density estimation system at closed space using high frequency and smart device. The system send inaudible high frequencies to smart devices and it count the smart devices which detect the high frequencies on the space. We tested real-time user density with the proposed system and ten smart devices to evaluate performance. According to the testing results, we confirmed that the proposed system's accuracy was 95% and it was very useful. Thus, because the proposed system could estimate about user density at specific space exactly, it could be useful technology for safety of people and measurement of space use state at indoor space.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2007.11a
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• pp.44-48
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• 2007

The advent of new media resulted in the revolutionary change of human way of life, which have big influence on the society and new culture other than that of the past appeared. This study aims preparing indicators of digital display space which meets with paradigm of the new age by studying characteristics of expression of new media in digital display space. his study searched for their meaning and possibilities by analyzing their characteristics of expression through cases of digital display space at homeand overseas since 1990s with key words of characteristics of expression of new media. Characteristics of expression in modern digital display space are characterized by immateriality, interrelated actions, nature of non-rectilineal figure, space is immaterial and abstract by new media, and new aesthetics completed by expression of images. Accordingly, we expect that this study will be the medium of development of digital display space which is developed more and communicated mutually by rapidly understanding changes of digital display space in the future.

• Vacuum Magazine
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• v.3 no.4
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• pp.8-13
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• 2016

The need of space-resolved x-ray photoelectron spectroscopy (XPS) has developed scanning photoelectron microscopy (SPEM). SPEM provides space-resolved XPS data from a spot of a sample as well as images of specific element, chemical state, valency distribution on the surface of a sample. Based on technical advancement of tight x-ray focusing, sample positioning accuracy, and electron analyzer efficiency, SPEM is now capable of providing ~100 nm space resolution for typical XPS functionality, and SPEM has become actively applied for the investigation of chemical state, valency, and electronic structure on the surface of newly discovered materials, such as graphene layers, dichalcogenide 2D-materials, and heterogenous new functional materials.

• Journal of Astronomy and Space Sciences
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• v.23 no.4
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• pp.303-310
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• 2006

We model the aspherical dust envelopes around O-rich AGB stars. We perform the radiative transfer model calculations for axisymmetric dust distributions. We simulate what could be observed from the aspherical dust envelopes around O-rich AGB stars by presenting the model spectral energy distributions and images at various wave-lengths for different optical depths and viewing angles. The model results are very different from the ones with spherically symmetric geometry.

• Journal of Astronomy and Space Sciences
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• v.24 no.2
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• pp.119-124
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• 2007

The relation between substorm occurrences and HILDCAA events has been an issue. We have studied the association of particle injections with substorm onsets during HILDCAA intervals for the first half of year 2003. The examination of aurora images observed by IMAGE spacecraft and electron flux data measured by LANL satellites exhibits a close association of repetitive particle injections with substorm activity. We also find that HILDCAA events can occur equally frequently during slow speed solar wind streams as long as the interplanetary magnetic field exhibits Alfvenic wave feature.

• Communications of the Korean Mathematical Society
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• v.27 no.2
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• pp.377-384
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• 2012

In this paper some properties of sequentially closed sets and $k$-closed sets in a topological space are discussed, it is shown that a space is a $k$-quotient image of a metric space if and only if its each sequentially closed set is $k$-closed, and some related examples about connectedness are obtained.

• The Bulletin of The Korean Astronomical Society
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• v.45 no.1
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• pp.53.1-53.1
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• 2020

We present Herschel Space Observatory far-IR observations of the supernova remnant(SNR) G21.5-0.9. We search PACS-IFU data for 63um [O I], 88um [O III], 157um [C II] emission lines and detect the [O II] and the [C II]. We then produce emission line maps to check the spatial distribution of the elements. We compare the maps to Radio, IR-photometrics, and X-ray images in order to understand interaction of the ejecta with the Pulsar Wind Nebula(PWN) and physical environment in the SNR.

• Korean Institute of Interior Design Journal
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• v.22 no.4
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• pp.52-61
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• 2013

This study set out to compare and analyze the spaces in the images and sets of the representative movies that led the new heyday of Korean film since 1997 and examine the characteristics of contemporary Korean modernism in the movies, thus building an academic foundation for future exchanges between contemporary Korean architecture and contemporary Korean cinema. As for methodologies, the study first examined the film theories on how to utilize spaces projected onto moving images. Secondly, the study made an overall comparison of the characteristics of spaces in the representative movies of contemporary Korean cinema since 1997. Finally, the study compared and analyzed them with the intrinsic characteristics of modernism architecture space. The research findings were as follows: first, the representative movies of contemporary Korean cinema since 1997 either had a backdrop of everyday modernism space in the 1970s and 1980s or created a new space of late or post modernism in them that escaped from daily life for the mise-en-$Sc\grave{e}ne$ composition. Secondly, the contemporary Korean cinemas used the unornamented modernism architecture in Korea as the props of revealing the personalities and emotional aspects of the characters in a prominent fashion. Thirdly, they also used communication between internal and external space and spatial severance via the facade window in modernism architecture as important devices for narration organization. Finally, they selected the camera positions by applying the principle of open space, which allows for the expansion, reduction, and distinction of space according to functions, and thus established a methodology to create a space fit for the personalities of characters and stories.

• Journal of English Language & Literature
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• v.57 no.6
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• pp.939-958
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• 2011

Ezra Pound has an idea of poetry as a field of energy in which words interact with each other with kinetic energy. The energy field which Pound creates in his poem is analogous to the theory of electromagnetism developed by Michael Faraday and James Maxwell, who look upon the space around magnets, electric charges and currents not as empty but as filled with energy and activity. Pound argues that "words are charged with force like electricity," demonstrating that words charged with their own images or energies of positive or negative valence interact one another. This idea is similar to Faraday's concept of "line of force" which he used to represent the disposition of electric and magnetic forces in space. Pound's concept of "image" as an "intellectual and emotional complex in an instant" is remarkably consonant with the confluence of electric and magnetic fields that are coupled to each other as they travel through space in the form of electromagnetic waves. The instant profusion of conception and perception, much like that of electric and magnetic fields, enables Pound to move beyond the sequential and linear hierarchy in time and space. Particularly, Maxwell's stunning discovery that the electromagnetic waves propagate in space at 'the speed of light' has allowed Pound a relativistic sense of escape from the limitations of Newtonian absolute time and space. Pound's poetry transcends any geographical space and sequential time by rendering and juxtaposing images simultaneously. Pound was fully aware of light and electricity fundamental to what he called his world "the electric world." Pound's experiments in Imagism and Vorticism can be considered an attempt to rediscover a place for poetry in the modern world of science and technology. Almost all the appliances that we think of today as modern were laid down in the closing decades of the 19th century and the first decades of the 20th century, in response to the availability of electromagnetic energy. This paper explores how Pound responded to the age of modern technology and science, examining his conception of "image" through his many analogies and similes drawn from electromagnetism. Pound's imagist poetics and poetry come to embody, not only the characteristics of the electric age in the early twentieth century, but the principles of electromagnetism the electric age is based upon.