• Journal of the Institute of Electronics Engineers of Korea TC
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• v.45 no.3
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• pp.1-6
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• 2008

A dual band I/Q modulator which converts baseband input signals to 2.4GHz or 5GHz RF output has been proposed. The dual band I/Q modulator for 2.4GHz and 5GHz wireless LAN applications consists of $90^{\circ}$ phase shifter and wideband mixer. The I/Q modulator showed 15dB conversion loss at 2.4GHz and 16dB conversion loss at 5GHz. The sideband suppression is about 15dBc at 2.4GHz and 16dBc at 5GHz. Measured data shows 8.5% EVM at 2.4GHz, and 10% EVM at 5GHz for QPSK with symbol rate of 11Mbps. A carrier rejection is about 40dBc at 2.4GHz/5GHz band, and the I/Q modulator satisfied the output wireless LAN spectrum mask with baseband input signal.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.9
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• pp.3-11
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• 2013

Recently, a plenty of researches have been conducted using the massively parallel processing of GPU for the implementation of communication system. In this paper, we tried to reduce software simulation time applying GPU with sliding block method to Viterbi decoder in DVB-T system which is one of European DTV standards. First of all, we implement DVB-T system by CPU and estimate cost time whereby the system processes one OFDM symbol. Secondly, we implement Viterbi decoder by software using NVIDIA's massive GPU processor. In our work, stream process method is applied to reduce the overhead for data transfer between CPU and GPU, as well as coalescing method to lower the global memory access time. In addition, data structure design method is used to maximize the shared memory usage. Consequently, our proposed method is approximately 11 times faster in 2K mode and 60 times faster in 8K mode for the process in Viterbi decoder.

• The Korean Journal of Community Living Science
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• v.18 no.4
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• pp.655-670
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• 2007

The purpose of this study was to develop a brand naming strategy for rural specialty products of Muju. This study was to apply brand development research to the field. The selected investigation subject, a local farming operation producing a specialty product, was chosen from a New Enterprise Support Project of Farm Women ('06). The selected subject was a farming operation producing bokbunja drink in Muju. The data was derived from 137 female consumers. The major results of this study were as follows. First, the process of brand development strategy was advanced by six steps: Step 1, environment analysis; Step 2, brand case study; Step 3, SWOT analysis (Strength Weakness, Opportunity, Threat factor analysis); Step 4, direction design for brand naming development (Targeting, Brand focus concept extraction); Step 5, brand logo and symbol production; and Step6, Evaluation. Second, to extract brand naming development direction, key concepts in association with natural connection, area features, representative resources, and natural friendship were investigated. Namely, the health function concept was selected on the basis of a consumer recognition investigation where results appeared most highly favorable. Also, it was decided that the direction of brand naming should emphasize a green image and the location name of Muju. Finally, the brand name was decided to be "Saenggichan" bokbunja liquid and the slogan went with "guchondon-native thorn bokbunja from jar maturing."

• The Journal of the Korea Contents Association
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• v.10 no.3
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• pp.166-174
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• 2010

As the speed of social change consumers' buying patterns change, with an effective and competitive means of communication is an effort to find ads world. Characters have to maximize its own image, the character font used for the situation fits perfectly expressed in the formative Calligraphy differentiated pay plan as part of Calligraphy is considered. People feel in the hand by writing letters that can not be standardized as a strong symbol and symbolism, and the appeal and beauty, dynamic motion, mystery, and can be expressed. Design disciplines across all areas of Calligraphy extensive coverage, digital coolness of the hard preparation for the soft and warm lyricism analogue availability is required to meet contemporary needs. Media ads that emphasize the use of the Calligraphy emotional representation of the contents of the ads favorable to improve cognitive function, attention, recall of positive affect and, therefore, character-driven emotional expression as an art communications capabilities with one of the media is situated in the heart of the culture.

• The Journal of the Korea Contents Association
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• v.10 no.3
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• pp.373-380
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• 2010

The purpose of this study was to evaluate the effects of recreational exercise on cognition, depression, dynamic balance and leg strength in elderly women. This study was nonequivalent control group pre-post test design. Subjects were divided into two group(exercise group=14, control group=13). Experimental group conducted recreational exercise program for eight-week. Cognition was assessed by K-WAIS(object assembly & digit symbol) and depression were assessed by questionnaire. Dynamic balance(DB) and leg strength(LS) were assessed by 244cm up & go and sit to stand respectively. The collected data analyzed by Wilcoxon singed rank test and Mann-Whitney U test. The exercise group significantly improved cognition(object assembly) and DB, but control group significantly reduced DB. DB in exercise group were significantly greater than in control group after eight-week. The program was effective on cognition and dynamic balance in elderly women.

• Journal of Science of Art and Design
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• v.8
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• pp.95-127
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• 2005

It's a matter of ontology rather than that of cognition and methodology to discuss a work of art in Gadamer's philosophy. In addition, he emphasizes the cognitive aspect of a work of art instead of comparing forms and contents of them. For that reason, he excludes aesthetic consciousness derived from Kant first and then makes away with Schiller's theory of aesthetic education. For Gadamer, the concept of truth does not mean accord or correspondence. It would rather be an encounter. This encounter is not axed on a specific time, but a continuous and historical one. Basically. a work of art guarantees this kind of an encounter. This encounter is not based on mutual agreement through an objective standard but on recognition with mutual understanding. Therefore, prejudice or tradition should be acknowledged and respected instead of being excluded. We have only to minimize difference between them through conversation. Gadamer's ontology of a work of art is based on such a ground. The function of a work of art is not only simple satisfaction of aesthetic senses but an object of interpretation, that is, a text by presenting a ground of truth through an agreement of situation. This text reveals its meaning in the situation of author-text-reader. The appearance of this meaning is nothing but the birth of truth. Symbol-allegory and classicism show how to express this kind of truth in a work of art. It is true that Gadamer's philosophical hermeneutics cannot be easily applied to interpret a concrete work of art because it just lays emphasis on the process of 'understanding' instead of a detailed analysis on an individual work. For that reason, he was criticized by some people because of this subjectivity of understanding. However, it's meaning could be changed according to the viewpoint on a work of art. There appears various structural approaches on a work of art in contemporary theory of art. Gadamer just asks the basis of such approaches instead of criticizing a specific one Therefore, a practical approach on individual work should be made separately and hermeneutics enriches the meaning of open-ending of each work of art.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.24 no.7A
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• pp.1090-1098
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• 1999

In this paper ERP-4 viterbi decoder for magnetic disk read channel is designed. The viterbi decoder consists of ACS circuit, path memory circuit, minimum detection circuit, and output selection circuit. In the viterbi decoder the number of state is reduced from 8 to 6 using (1,7) RLL codes and modulo comparison based on 2's complement arithmetic is applied to handle overflow problem of ACS module. Also to determine the correct symbol values in nonconvergent condition of path memory, pipelined minimum detector which determines path with minimum state metric is used. The EPR-4 viterbi decoder is designed using 0.35${\mu}{\textrm}{m}$ CMOS technology and consists of about 15,300 transistors and has 250 Mbps data rates under 3.3 volts.

• Journal of the Korea Safety Management & Science
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• v.14 no.3
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• pp.245-257
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• 2012

Business environment, competition among firms in recent years, diverse and fragmented by the symbol of the consumer has become very complex and intense. Nevertheless, for the best performance of firms differentiated their company strives to have unique core competencies. In this study, reviewing the internal customer support activities and existing research on market orientation and then how it affects the future strategy for the internal customer support activities. Through the results of this study, first, to appear understanding of the effect of education and training to customers in enterprise-wide, strategic plan through competitor analysis, improved communication between departments, etc need to design to be effective in performance of company in a long term when in planning and training for employees such as job training, service training and training for improving service mind. Second, employment stability and internal communications to the employee's customer orientation showed no significant affect. This is considered for employees due to lack of fear or anxiety, so the employer could focus on his role in the current organization willing to participate actively for goals of the organization. Finally external customer orientation in the employee's customer orientation did not affect the analysis results which is appeared to in companies are constantly communicating with employees through the company's position and the difference between the employee's position is necessary to look for ways to narrow down.

• Journal of Science of Art and Design
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• v.2
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• pp.5-41
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• 2000

The purpose of this thesis is to study about destructive method in late twentieth Century Paintings. To do this we will consider the examples of Frank Stella and Anselm Kiefer's expressive methods. And this thesis is designed to investigate the change of the two Modes. The centering change is in the destructive manner of them, and they are traced systematically. In these chapters we will study the procedure of the destruction and specification of the Modes; the subject which contains the special element, the relation between it and the artist's willful meaning, morphological specification, symbol system formative language, subject, material and coloring way. etc. The origin of the methodology is systematically studied and the procedures of the content applicated are considered. In the special characteristics of the methodology, the special feactures it contains will be considered. The basis of the deconstructive idea from Nietsche, Derrida, Saussire, Andrew Benjamin and others will be applied to understand the two Modes of artistic methodology, and whether or not they can be tools of explaining the methodology of our time is distinguished. Next, the methodologically founded contents and concepts from Chapter#2 are related and intertwined together. The outer destructive aspect and inner destructive specification are centrally uncovered by the Interpretation. The resulting background of the Mode, the factor of destruction and central concept, along with the works, applied ideas, and pre-scholar's writings, are conjoined and explained. The characteristics of S Mode are revealed as being similar to those of Vandalic Destruction and Baroque formalistic Style, while K Mode is closely related to Iconoclastic Destruction and Neoclassical Antiformal Style.