• Bulletin of the Korean Space Science Society
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• 2006.04a
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• pp.106-106
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• 2006

• Bulletin of the Korean Space Science Society
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• 2006.10a
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• pp.120-120
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• 2006

• Korean Journal of Human Ecology
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• v.23 no.2
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• pp.329-341
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• 2014

This study examined the effects of cultural communication on the fashion distribution type and the shopping benefit in fashion cultural complex space. Surveys period was from Sep. 17th to Sep. 21st in 2012. The Subjects of this study were the young 207 people who had shopping experiences in fashion cultural complex space in their 20s~30s. The data were analyzed by a reliability analysis(Cronbach's ${\alpha}$), factor analysis and regression analysis. The main results of this study were summarized as follows. First, cultural communication in fashion cultural complex space were impacted by cultural brand, cultural display, cultural support and beneficial effect of culture. Second, customers pursued the shopping benefits to get social value, personal pleasure, individual style and economic value. Third, the preference of fashion outlet was effected by cultural brand and cultural display. The beneficial effect of culture and cultural brand influenced on department store preference. The preference of fashion multi-brand shop was impacted by cultural brand, cultural support and beneficial effect of culture. Fourth, cultural communication in fashion cultural complex space had an effect on pursuing shopping benefits. Fifth, customer's demographic characteristics impacted on cultural brand, cultural display and beneficial effect of culture. Especially, these 3 cultural communications were effected by monthly average fashion spending than age/total income.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.46 no.4
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• pp.70-76
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• 2009

In this paper, we propose the design criteria of the pre-processing scheme used in ABAB type quasi-orthogonal space-time block code(QOSTBC) and derive. The proposed design criteria show how to obtain full-diversity and full-rate (FDFR) property, single-symbol decodability, and increased coding gam. We design an improved ABAB type QOSTBC using the proposed design criteria. The desinged QOSTBC has a superior performance to Dalton's QOSTBC and inherits the merits of Dalton's QOSTBC, which are FDFR property, and single symbol decodability for PAM signal constellation.

• Korean Institute of Interior Design Journal
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• v.21 no.4
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• pp.172-180
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• 2012

Recently, the definition of work space contains so many meanings. Basically, this means space where handling various information and developing numerous creative activities. Moreover, the work space is important not only for individual itself but also organizational development. This research is studied for suggesting revitalization of advanced work efficiency, deriving motivation as well as creative operation support for harmonious communication. In order to make the better creative work places, "concentration and motivating interests between members of organization", "Necessity of environment for development and operational progress of work", "improvement and creativity of work and importance of the physical environment" and "harmonious communication and development of advanced community" should be considered. This research arranged based on ALCEMIS model and used actual examples on each step for better understanding of creative work spaces. ALCEMIS model is as follows: (1) Opportunity Finding (2) Fact Finding (3) Opportunity Definition (4) Idea Finding (5) Evaluate & Select (6) Plan (7) Acceptance (8)Execution' over the eight-step details to proceed through the 1. Discovert ((1)+(2)) 2. Dream ((3)+(4)) 3. Design((5)+(6)) 4. Destiny((7)+(8))y" It has been understood that many works related to creative jobs make good use of public spaces to progress operational improvement. The place where co-workers share with can create more effective and fulfilling outcome and satisfaction than independent and exclusive places. Especially creative jobs need this kind of spaces for better communication and cooperation.

• Korean Institute of Interior Design Journal
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• v.22 no.2
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• pp.194-202
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• 2013

Commercial spaces are very sensitive in terms of trend and uniqueness, and many elements expressing space coexist together with brilliant ideas aiming to attract consumer attention and even induce sudden desire of purchase. Coexistence in space is expressed in various ways and out of those ways, representation by material is especially apparent. The application of material does not individually influence the expression of space, but the characteristics of multiple materials applied contribute to the distinction of space through mutual communication. This study intends to analyze how conversion is centered to express the distinction of space through materials communicated in space. The detailed study results are as follows. First, the conversion expression method of material resulted as 'Substitution', 'Contrast', 'Assimilation', 'Creation'. These four was divided and analyzed into 'Time', 'Space', 'Genre'. As a result of this analysis, such significances were shown as 'Contrast' in 'Time', 'Substitution' in 'Space', and 'Assimilation' in 'Genre'. Second, the conflict due to heterogeneity by conversion of 'Contrast' in 'Time' through past and current materials appeared to induce interest amongst consumers. Third, within 'Space', 'Substitution' of natural/artificial materials was noticeably applied. This is evaluated as a constructive way of expressing natural forms into artificial forms further intending to provoke attention and stimulate emotion. Fourth, in conversion through 'Assimilation' in 'Genre', rather than using materials only from other areas, synchronizing it by combining architectural materials is an effective method. Such results are thought to be a distinctive design method that draws attention of customers by communicating disparate materials in commercial space. Thus, the study results are expected to be utilized as an elementary resource in designing commercial space with character and high satisfaction.

• Journal of Navigation and Port Research
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• v.38 no.4
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• pp.349-356
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• 2014

In the underwater communication, the performance of system is reduced because of the inter-symbol interference occur by the multi-path. In the recent years, to deal with poor channel environment and improve the throughput, the efficient concatenated structure of equalization, channel codes and Space Time Codes has been studied as MIMO system in the underwater communication. Space Time Codes include Space Time Block Codes and Space Time Trellis Codes in underwater communication. Space Time Trellis Codes are optimum for equalization and channel codes among the Space Time Codes to apply in the MIMO environment. Therefore, in this paper, turbo pi codes are used for the outer code to efficiently transmit in the multi-path channel environment. The inner codes consist of Space Time Trellis Codes with transmission diversity and coding gain in the MIMO system. And Zero Forcing method is used to remove inter-symbol interference. Finally, the performance of this model is simulated in the underwater channel.

• Current Optics and Photonics
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• v.3 no.5
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• pp.365-373
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• 2019

This paper investigates the performance of a hybrid single input multiple output radio frequency/free-space optics (SIMO-RF/FSO) communication system. Each SIMO-RF link is modeled as an independent and identically distributed (i.i.d.) Rayleigh distribution, while the FSO link follows a generalized $M{\acute{a}}laga$ (M) distribution. Considering the fixed gain amplify-and-forward (AF) relay and misalignment errors, novel expressions for the outage probability (OP), average bit error rate (ABER) and average capacity are derived. Numerical results show that atmospheric turbulence and misalignment errors can seriously impair the system performance, and the hybrid RF/FSO communication system using SIMO-RF links can greatly improve system performance. We also analyze system performance under different types of modulation schemes. Numerical results are verified by Monte Carlo simulations.

• The Journal of the Korea institute of electronic communication sciences
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• v.6 no.6
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• pp.957-963
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• 2011

This paper proposes a way to visualize the cyber space with respect to the offline space. In general, people have difficulties to understand the cyber space since it is not tangible and not visible. In businesses, both spaces depend on identical proposition of "salse of merchandise goods to customers". Here, 3 merchandise elements of "customers", "merchandise goods" and "salse" in the cyber space are compared to them in the offline spaces in order to visualize the cyber space in terms of businesses.

• Proceedings of the KSRS Conference
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• 2008.10a
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• pp.100-103
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• 2008

COMS(Communication, Ocean and Meteorological Satellite) has multiple payloads; Meteorological Image(MI), Ocean Color Imager(GOCI) and Ka-band communication payloads. MI has 4 IR and 1 visible channel. In order to improve the quality of IR image, two calibration sources are used; black body image and cold space look data. In case of COMS, the space look is performed at 10.4 degree away from the nadir in east/west direction. During space look, SUN or moon intrusions are strictly forbidden, because it would degrade the quality of collected IR channel calibration data. Therefore we shall pay attention to select space look side depending on SUN and moon location. This paper proposes and discusses a simple and complete space look side selection logic based on SUN and moon intrusion event file. Computer simulation has been performed to analyze the performance of the proposed algorithm in term of east/west angular distance between space look position and hazardous intrusion sources; SUN and moon.