• Journal of the Korean Society of Physical Medicine
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• v.8 no.3
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• pp.337-342
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• 2013

PURPOSE: The Unilateral neglect is characterized by difficulty shifting attention to the side of space opposite the brain lesion and frequently reducing use of contralesional extremities. This study was to identify whether the visual deprivation was responsible for head position on unilateral neglect patient after stroke. METHODS: A patient with left middle cerebral artery infarction participated in the study. We assessed neglect using line bisection and star cancellation test. Patient was instructed to maintain correct alignment of trunk and head in a sit position. We evaluated degree of head lateral tilting and rotation. Then, patient was blocked visual input. Also, we evaluated head position in the same way. RESULTS: He scored 3 points in the line bisection test and 9 points star cancellation test. In postural evaluation, he had deviated posture such as lateral head tilting and rotation. After visual cue deprivation, patient showed different head position which was decreased degree of head tilting and rotation. CONCLUSION: For vertical body orientation, it was used multiple sensory references including the vestibular, somatosensory, and visual system. This finding suggested that abnormal posture of neglect patient could be related to the visual input. It has important clinical implications in terms of understanding the neglect.

• Journal of Korean Society of Rural Planning
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• v.8 no.3 s.17
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• pp.49-57
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• 2002

The purpose of this study is to present a new orientation for the residential culture that can meet the shifting demands of modern people as their attitudes toward life change. One of the rural regions that has lately attracted considerable attention, Wonsam-myun, Yongin city, is selected as the residence zone to develop a housing complex. In this study, a new housing complex is designed to supplement the defects of existing housing complexes by making the utmost use of the merits that Wonsam-myun as a residential environment can offer. The major findings of this study can be summarized as follows: 1. To present a new Korean model, yellow soil houses and traditional trees were used to utilize Korea's traditional landscape beauty in the construction and landscape aspect, instead of imitating indiscreetly foreign styles in which most newly developed housing complexes were built. 2. To provide convenience to prospective residents, a package sales scheme covering from lot purchase to building permit was adopted. 3. As for the planting plan, existing plants was preserved as much as possible to keep harmony with new plants. In selecting plant types, a traditional method that emphasizes on the visual effects of aesthetic plants and shade trees with the change of seasons and plants various kinds of plants according to directions was adopted. 4. Each household was given the opportunity to design its own garden according to the family's preference and taste. 5. The advantages of a rural area that city does not offer were fully utilized to provide the residents with convenience and pleasure of living.

• Journal of the Korean Society of Clothing and Textiles
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• v.26 no.6
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• pp.751-762
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• 2002

Korean apparel industry is facing critical moment due to shortage of labor, wage increases and intensive competition among domestic manufactures. In addition, international production has been shifting to China and the other low-wage countries from established locations such as Korea, Hong Kong and Taiwan. Global sourcing has been received considerable attention since firms can enhance their competitive advantage as well as comparative advantage by coordinating their sourcing activities global]y. This studs regarded global sourcing as one of the strategic tools to achieve competitive advantage of Korean apparel firms, and explored the current status by literature reviews and series of in-depth interviews with managers of korean apparel firms. The findings of this study were as follows: 1) Due to geographical advantage, China was the most favored nation for outsourcing for domestic markers. However, exporting firms preferred Latin America (including Mexico) to take advantage of duties, quotas and geographical proximity to the US market. 2) In selecting the global sourcing country, productivity, technical ability, local government regulation, and culture were considered important. 3) Most Korean apparel firms sources production globally, and followed by raw materials and trims. 4) Cost and quality were the most important factors in deciding subcontractors, and experience, productivity, equipment and finances were the next concerns. Academic implications and future directions were suggested based on findings.

• Proceedings of the IEEK Conference
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• 1998.06a
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• pp.271-274
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• 1998

Ultrasonic sensors are becoming indispensable components in every sector of automation equipments due to many advantages. But the main purposes of the noncontact sensing device are rather narrowly confined within object detection and distance measurement. To widen the realm of the applications to object recognition, ultrasonic sensors need to improve the recognition resolution to a certain amount. To resolve the problem of spatial resolution restriction, an increased number of the sensors in the forms of a linear array or 2-dimensional array of the sensor has been used. Also better resolution has been obtained by shifting the array in several steps using mechanical actuators. For an object recognition using ultrasonic sensors, measurements of distance, shift, oblique angle in certain ranges should be obtained. But a little attention has been paid to the measurement of angles. In this paper we propose a practical method for an object angular value detection in addition to distance measurement in ultrasonic sensor array system with little additional hardware burden. Using the established measurement look-up table for the variations of distance, shift, angle and transmitter voltages for each sensor characteristics, a set of different return echo signals for adjacent receivers are processed to provide enhanced angular value reading for an object.

• Journal of the Korea Safety Management & Science
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• v.16 no.1
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• pp.79-88
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• 2014

The rapid growth of complexity and scale can be witnessed in the design and development of modern systems. As such, the severity of damages in the occasional accidents has attracted great deal of attention lately. Although a variety of methods have so far been studied to overcome or reduce the disastrous results of hazards, the issues seem still persistent and even complicated due to the situation mentioned above. The concept of functional safety has been regarded as one approach to handling the matters by shifting up to the functions level from the consideration of each physical component itself. The outcomes of those efforts would be the international standards on functional safety such as IEC 61508 and its relatives including IEC 62278, EN 50128, ISO26262, and so on. In this paper, a method of how hazards can be analyzed to be coped with those standards has been studied. In the method proposed, the systems modeling language (SysML) is playing a key role to model and analyze the hazards from the viewpoint of functional safety. The approach taken has been applied in the analysis of the hazards in railroad systems. In spite of focusing on the individual components hazards, the method based on functional safety has analyzed them collectively with the added effect of identifying the cause originated from the interface between the functions.

• Journal of the Institute of Convergence Signal Processing
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• v.15 no.1
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• pp.1-8
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• 2014

Digital watermarking techniques are attracting attention as a proper solution to protect copyright for multimedia data. This paper proposes a new audio watermarking method based on Discrete Cosine Transformation (DCT) and Discrete Wavelet Transformation (DWT) for copyright protection. In our proposed watermarking method, the original audio is transformed into DCT domain and divided into two parts. Synchronization code is applied on the signal in first part and 2 levels DWT domain is applied on the signal in second part. The absolute value of DWT coefficient is divided into arbitrary number of segments and calculates the energy of each segment and middle peak. Watermarks are then embedded into each middle peak. Watermarks are extracted by performing the inverse operation of watermark embedding process. Experimental results show that the hidden watermark data is robust to re-sampling, low-pass filtering, re-quantization, MP3 compression, cropping, echo addition, delay, and pitch shifting, amplitude change. Performance analysis of the proposed scheme shows low error probability rates.

• Korean Institute of Interior Design Journal
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• no.37
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• pp.88-94
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• 2003

In recent years, the direction of the contemporary design paradigm has been shifting from the western to eastern culture; while the western paradigm focuses more on logic and reasons, the eastern paradigm values more on the emotional factors. Today, the interior architecture, in the professional field of design, is gaining its attention from the public due to its rapid development of multi-purpose intelligent buildings which are expected to grow more in coming years. Users are becoming high in demand for the maximum efficiency 8f aesthetical Intoners. While functionality Is the fundamental element In office design, there are increasing request to express uniqueness in the given space such as including the traditional concepts specially when we are living in the era of "globalization". The effect of both WTO policy and the globalization, brought many multinational or foreign companies to expand in Korea. Their request for interior design is to reflect Korean traditions in the office space in order to present the regional characteristics of Korea. Office designs in Korea has been developing rapidly in terms of its advancement in building technology and visual aesthetics. However, the Korean traditional concepts have been expressed very broadly without any boundary or knowledge. Thus, the objective of this study is to analyze the Korean traditions and design elements expressed in various office spaces on case-by-case basis and to provide the typology and the guidelines for the future designs.e designs.

• The Journal of Asian Finance, Economics and Business
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• v.9 no.3
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• pp.77-82
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• 2022

In Bangladesh, developing students' entrepreneurial intentions have received a lot of attention because of the country's current employment predicament and shifting labor market. Entrepreneurs play a critical part in a country's economic development. This study aims to examine the impact of creativity and innovation on students' intentions toward online entrepreneurship in Bangladesh. The participants in this study were Bangladeshi university students. Based on pre-tested constructs, a survey questionnaire was created. Convenience sampling, which is a common type of non-probability sampling, was used to choose participants for the sample. A total of 150 students from the public university took part in the survey, with 120 replies being accepted as complete, resulting in an 80 percent response rate. Hence, the sample size is 120. Internal consistency was determined using Cronbach's alpha, while correlation and hypothesis tests were analyzed using SPSS version 26.0. The results reveal that creativity and innovation have a statistically significant and positive impact on students' intentions to engage in online entrepreneurship. These two independent factors explained 75% of the variance in intention to engage in online entrepreneurship, resulting in empirical findings and solid information in the present body of knowledge. The study concludes with a conclusion and research implications for the future.

• Asia pacific journal of information systems
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• v.28 no.2
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• pp.114-132
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• 2018

Quantified-self technologies (QSTs) provide functions for users to collect, track, and monitor personal data for self-reflection and acquisition of self-knowledge. Although QSTs require prolonged use to reap the attendant benefits, many users stop using their devices or tracking within weeks or months. To address this issue, this study seeks to determine ways to sustain the use of QSTs. Combining motivational affordance theory with technology continuance theory, this study develops a theoretical model that accounts for an individual's continued intention to use a QST. Within the proposed model, unique QST affordances were identified as antecedents of individual motivation in relation to technology continuance, and their different roles in stimulating hedonic, utilitarian, and eudaimonic motivations were examined. The model was tested using data collected from 180 QST users. Results demonstrate that although utilitarian and eudaimonic motivations are complementary forces in determining continuance intention, hedonic motivation loses its predictive power in favor of eudaimonic motivation. Tracking, visualizing, and sharing affordances play different roles in elevating user motivations. The sharing affordance does not influence utilitarian and eudaimonic motivations, but it positively influences hedonic motivation. This research contributes to the literature on technology continuance by shifting scholarly attention from hedonic-utilitarian duality to eudaimonic motivation, characterized by meaning, self-growth, and pursuit of excellence.

• Sleep Medicine and Psychophysiology
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• v.12 no.2
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• pp.122-132
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• 2005

Objectives: The objective of this study is to assess cognitive functions and their relationship with sleep symptoms in young narcoleptic patients. Methods: Eighteen young narcolepsy patients and 18 normal controls (age: 17-35 years old) were recruited. All narcolepsy patients had HLA $DQB_1$ *0602 allele and cataplexy. Several important areas of cognition were assessed by a battery of neuropsychological tests consisting of 13 tests: executive functions (e.g. cognitive set shifting, inhibition, and selective attention) through Wisconsin card sorting test, Trail Making A/B, Stroop test, Ruff test, Digit Symbol, Controlled Oral Word Association and Boston Naming Test; alertness and sustained attention through paced auditory serial addition test; verbal/nonverbal short-term memory and working memory through Digit Span and Spatial Span; visuospatial memory through Rey-Osterrieth complex figure test; verbal learning and memory through California verbal learning test; and fine motor activity through grooved pegboard test. Sleep symptoms in narcolepsy patients were assessed with Epworth sleepiness scale, Ullanlinna narcolepsy scale, multiple sleep latency test, and nocturnal polysomnography. Relationship between cognitive functions and sleep symptoms in narcolepsy patients was also explored. Results: Compared with normal controls, narcolepsy patients showed poor performance in paced auditory serial addition (2.0 s and 2.4 s), digit symbol tests, and spatial span (forward)(t=3.86, p<0.01; t=-2.47, p=0.02; t=-3.95, p<0.01; t=-2.22, p=0.03, respectively). There were no significant between-group differences in other neuropsychological tests. In addition, results of neuropsychological test in narcolepsy patients were not correlated with Epworth sleepiness scale score, Ullanlinna narcolepsy scale score and sleep variables in multiple sleep latency test or nocturnal polysomnography. Conclusion: The current findings suggest that young narcolepsy patients have impaired attention. In addition, impairment of attention in narcolepsy might not be solely due to sleep symptoms such as excessive daytime sleepiness.