• Title/Summary/Keyword: 3 Dimension

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A study about modeling methode of practice works -Focus on compare RP with manual processing, CNC- (실습과제 모형제작 방법에 관한 연구 -RP와 수동형, CNC 모형제작 방법 비교를 중심으로-)

  • Shin, Myung-Chul
    • Archives of design research
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    • v.18 no.1 s.59
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    • pp.223-232
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    • 2005
  • By supply of high performance computer becomes all industries automation and convenient of our life. Can speak that is pursuit of swiftness and variety that is prior most development of information society and production system in competitive industrial design product development process. Specially, students who consumer personality studies design according to variableness must present idea in a short time. Therefore, find a new tool that can show quick modeling result for present of new idea or fast design specifications examination and production at college or corporation now. According to such environment change did request by cost time and cost-cutting until reach in production from product design because competition is gone vigorously. University arrived to think RP induction by result presentation and so on for third dimension model by various design process. This research purpose is going to compare difference methods(Manual processing, CNC machine) with students' design result manufacture process on RP appliance that is using in college. Consequently, think that this study is helpful in the college of which is making use of RP appliance or planning installation. By result of this research, model of big curved line is profitable in hand process, by CNC Is profitable when model is going to manufacture finely, RP work could know that size of product is profitable small thing as is complicated.

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Effects of Dancing Healing on Post-traumatic Growth -Focused on Female Victims of Domestic Violence in Shelter- (춤 치유가 외상 후 성장에 미치는 효과 -쉼터거주 가정폭력 피해여성을 중심으로-)

  • Shin, Woo-Jung;Lim, Dong-Ho
    • The Journal of the Korea Contents Association
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    • v.18 no.2
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    • pp.158-168
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    • 2018
  • The purpose of this study was to investigate the effect of applying physical expression program through dancing on the post-traumatic growth of domestic violence female victims. The subjects of this study were female victims of domestic violence living in shelters (7 facilities) for women victims of domestic violence in Seoul, consisting of 23 experimental groups and 23 control groups. The dancing healing physical expression program applied to the experimental group consisted of 18 sessions, which was conducted three times a week for 6 weeks, and each session was conducted for 90 minutes. This study was aimed to dancing based on physical expression and movement experience, but focuses on improvisational, non-formal and creative expression for inner expression. We referred to the activities and principles of previous studies, and applied characters, which were counseling techniques, interactions, and healing principles of previous counseling psychology studies on domestic violence and trauma, to every stage of the session. As a result of this study, it was found that the dancing healing physical expression program had an effect on the entire post-traumatic growth of the experimental group and lower dimension lists of the depth of interpersonal relationship, self-perception, potential discovery, spiritual interest level, The results of the post - test were compared. There was a significant difference between the experimental and control groups after the test. In conclusion, this study aimed to understand the fundamental and healing attributes of dance, and provided basic data to establish a virtuous intervention strategy that provided opportunities for self-recovery to those who experienced psychological pain, such as women victimized by domestic violence at the social aspect.

DETERMINATIONS OF ITS ABSOLUTE DIMENSIONS AND DISTANCE BY THE ANALYSES OF LIGHT AND RADIAL-VELOCITY CURVES OF THE CONTACT BINARY - II. CK Bootis (접촉쌍성의 광도와 시선속도곡선의 분석에 의한 절대 물리량과 거리의 결정-II. CK Bootis)

  • Lee, Jae-Woo;Lee, Chung-Uk;Kim, Chun-Hwey;Kang, Young-Beom;Koo, Jae-Rim
    • Journal of Astronomy and Space Sciences
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    • v.21 no.4
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    • pp.275-282
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    • 2004
  • We completed the light curves of the contact binary CK Boo for 13 nights from June to July in 2004 using the 1-m reflector and BVR filters at Mt. Lemmon Optical Astronomy Observatory, and determined four new times of minimum light (three timings for primary eclipse, one for secondary). With contact mode of the 1998-version Wilson-Devinney binary model, we analyzed our BVR light curves and Rucinski & Lu (1999)'s radial-velocity ones. As a result, we found CK boo to be A-type over-contact binary ($f=84\%$) with the low mass ratio (q=0.11) and orbital inclination ($i=65^{\circ}$). Absolute dimensions of the system are determined from our new solution; $M_1=1.42Me{\odot},\;M_2=0.15M{\odot},\;R_1=1.47R{\odot},\;R_2=0.59M{\odot}$ and the distance to it is derived as about 129pc. Our distance is well consistent with that ($157{\pm}33pc$) from the Hipparcos trigonometric parallax within the limit of the error yielded by the latter.

The Effects of Management Consulting Quality and Consultant Capability on Entrepreneurial Firms' Performance (창업기업의 경영성과에 있어서 컨설팅품질과 컨설턴트역량의 영향에 대한 연구: 흡수능력과 자원역량의 매개효과를 중심으로)

  • Yoon, Ki-Chang
    • Journal of Distribution Science
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    • v.14 no.5
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    • pp.81-89
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    • 2016
  • Purpose - Prior researches have empirically focused on the effect of management consulting quality and consultant capability on entrepreneurial firms' performance. This study, however, focused on investigating the moderating role of absorptive capacity and resource capability between management consulting and entrepreneurial firms' performance. So, this study investigated the relationship among consulting quality, consultant capability, absorptive capacity, resource capability, and entrepreneurial firms' performance from the resource based view (RBV). Especially, this study focused on the mediating role of absorptive and resource capability in relational structure of entrepreneurial firms' dimensions. Research design, data, and methodology - In this study, research hypotheses and model are established by the prior researches from the fields of strategic management and entrepreneurial behavior. Concretely, H1~H4 are the relationship between consulting (consulting quality, consultant capability) and innovation (absorptive capacity, resource capability); H5 is the relationship between absorptive capacity and resource capability; and H6~H7 are the relationship between innovation (absorptive capacity, resource capability) and management performance. The data was collected 207 copies from entrepreneurial firms in South Korea. These firms were established in January 2014 and maintained by November 2015 in high-tech industry. The questionnaire was consisted of five dimensions; consulting quality, consultant capability, absorptive capacity, resource capability, and management performance. Each dimension measured multi items on a 5-point Likert scale. The hypotheses and research model are analyzed using structural equation modeling (SEM) with AMOS 22. Results - The results of this study are as follows. 1) Consulting quality significantly influenced on the absorptive capacity of entrepreneurial firms. 2) But, consultant capability did not influence on the absorptive capacity of entrepreneurial firms. 3) Consulting quality and consultant capability significantly influenced on the resource capability of entrepreneurial firms. 4) Absorptive capacity significantly influenced on the resource capability of entrepreneurial firms; 5) Absorptive capacity did not significantly influence on the management performance of entrepreneurial firms. 6) Resource capability, however, significantly influenced on the management performance of entrepreneurial firms. By these results, absorptive capacity of entrepreneurial firms had a mediating role partly among consulting quality, consultant capability, and management capability. The resource capability of entrepreneurial firms had a mediating role among consulting quality, consultant capability, and management capability, perfectly. Conclusions - According to this study, the high level of consulting quality and consultant capability may enforce the resource capability of entrepreneurial firms. It means, practically, that external knowledge is a driver for innovation, and then the innovation effects on the management performance of entrepreneurial firms. So, at the initial stage, the management consulting programs are very important to entrepreneurial firms and should be conceived as an essential element. This study may contribute to the advancement of academic in field of new start business, small business, or venture business based on resources, especially the role of absorptive capacity and resource capability between consulting programs and management performance. However, this study has some limitations. They are the measurement of consulting quality's items, cross-sectional research, and the limitation of concept and industry.

A Study on the Reconstitution of CPTED Theoretical Model - Focused on the Analysis of Sustainable Development - (CPTED 이론 모델의 재구성에 관한 연구 - 지속가능한 발전 분석을 중심으로 -)

  • Liu, He;Hong, Kwan-Seon
    • The Journal of the Korea Contents Association
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    • v.20 no.7
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    • pp.302-315
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    • 2020
  • The issue concerning how to integrate with the needs of sustainable development according to Crime Prevention Through Environmental Design(CPTED) theory still continues in the development process of the third-generation theory at the present stage. In addition, the issue is under worldwide controversy and discussion. What is more noteworthy is that the viewpoints under debate and discussion have an influence on the mutual effect and relationship between the theoretical model and the principles in the theoretical model, and the influence can never be underestimated. After a mastery of the overall context of theoretical development, it is believed in this study that the identity of CPTED theory development can provide a diverse understanding dimension and a communication method between the environment and environmental users. On the basis of identity the development of CPTED theory, the crime prevention design mode of CPTED needs to connect different dimensions of sustainability, with the design goal of livability as the starting point, the Top-down model to adjust the safety of the environment. By no means can the environmental condition be improved by solely relying on the previous physical design method in virtue of Bottom-up model. Therefore, in this study, the identity of CPTED will be set as the core combined with Top-down crime prevention design model to propose a visual proposal for the reconstitution of the theoretical model, rather than supplementing the application of the contents or principles at a certain stage. Hence, it is expected to provide reference and enlightenment for the sustainable development of CPTED theory.

Multivariate Time Series Simulation With Component Analysis (독립성분분석을 이용한 다변량 시계열 모의)

  • Lee, Tae-Sam;Salas, Jose D.;Karvanen, Juha;Noh, Jae-Kyoung
    • Proceedings of the Korea Water Resources Association Conference
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    • 2008.05a
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    • pp.694-698
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    • 2008
  • In hydrology, it is a difficult task to deal with multivariate time series such as modeling streamflows of an entire complex river system. Normal distribution based model such as MARMA (Multivariate Autorgressive Moving average) has been a major approach for modeling the multivariate time series. There are some limitations for the normal based models. One of them might be the unfavorable data-transformation forcing that the data follow the normal distribution. Furthermore, the high dimension multivariate model requires the very large parameter matrix. As an alternative, one might be decomposing the multivariate data into independent components and modeling it individually. In 1985, Lins used Principal Component Analysis (PCA). The five scores, the decomposed data from the original data, were taken and were formulated individually. The one of the five scores were modeled with AR-2 while the others are modeled with AR-1 model. From the time series analysis using the scores of the five components, he noted "principal component time series might provide a relatively simple and meaningful alternative to conventional large MARMA models". This study is inspired from the researcher's quote to develop a multivariate simulation model. The multivariate simulation model is suggested here using Principal Component Analysis (PCA) and Independent Component Analysis (ICA). Three modeling step is applied for simulation. (1) PCA is used to decompose the correlated multivariate data into the uncorrelated data while ICA decomposes the data into independent components. Here, the autocorrelation structure of the decomposed data is still dominant, which is inherited from the data of the original domain. (2) Each component is resampled by block bootstrapping or K-nearest neighbor. (3) The resampled components bring back to original domain. From using the suggested approach one might expect that a) the simulated data are different with the historical data, b) no data transformation is required (in case of ICA), c) a complex system can be decomposed into independent component and modeled individually. The model with PCA and ICA are compared with the various statistics such as the basic statistics (mean, standard deviation, skewness, autocorrelation), and reservoir-related statistics, kernel density estimate.

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Characters of Fracture-filling Minerals in the KURT and Their Significance (한국원자력 연구원 지하처분연구시설(KURT)의 단열충전광물 특성과 그 의미)

  • Lee, Seung-Yeop;Baik, Min-Hoon
    • Journal of the Mineralogical Society of Korea
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    • v.20 no.3
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    • pp.165-173
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    • 2007
  • The KAERI Underground Research Tunnel (KURT) located in KAERI (Korea Atomic Energy Research Institute) was recently constructed following the site investigation in 2003. Its dimension is 180 m in length, 6 m in width, and 6 m in height, and it has a horseshoe-like cross-sec-lion and is located in the ground to the depth of 90 m. When the tunnel was dug into the ground with 100 m in length, fresh rocks, weathered rocks and fracture-filling materials were taken and examined by mineralogical and chemical analyses. There are phyllosilicate minerals such as illite, smectite and chlorite including calcite, which are filling some faults and cracks of the KURT rock. The illite and smectite usually coexist in the fracture, where their content ratio is different according to which mineral is predominant. There are high concentrations of U and Th in the rocks coated with iron-oxides and filled with secondary materials as compared with those in the fresh rocks. It seems that the radionuclides, which are slowly leached from the parent rocks or exist as a dissolved form in the groundwater and hydrothermal solution, may have been migrated along the fractures and thereafter selectively sorbed and coprecipitated on the iron-oxides and the fracture-filling materials. These results will be very useful far the evaluation of environmental factors affecting the nuclides migration and retardation when long-term safety is considered to the geological disposal of high-level radioactive wastes in the future.

On the Performance of Sample-Adaptive Product Quantizer for Noisy Channels (표본적응 프러덕트 양자기의 전송로 잡음에서의 성능 분석에 관한 연구)

  • Kim Dong Sik
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.42 no.3 s.303
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    • pp.81-90
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    • 2005
  • When we transmit signals, which are quantized by the vector quantizer (VQ), through noisy channels, the overall performance of the coding system is very dependent on the employed quantization scheme and the channel error effect. In order to design an optimal coding system, the source and channel coding scheme should be jointly optimized as in the channel-optimized VQ. As a suboptimal approach, we may consider the robust VQ (RVQ). In RVQ, we consider developing an index assignment function for mapping the output of quantizers to channel symbols so that the effect of the channel errors is minimized. Recently, a VQ, which can reduce the encoding complexity and is called the sample-adaptive product quantizer (SAPQ), has been proposed. SAPQ has very similar quantizer structure as to the product quantizer (PQ). However, the quantization performance can be better than PQ. Further, the encoding complexity and the memory requirement for the codebooks are lower than the regular full-search VQ case. In this paper, SAPQ is employed in order to design an RVQ to channel errors by reducing the vector dimension. Discussions on the codebook structure of SAPQ and experiments are introduced in an aspect of robustness to noisy channels.

A Study on the High Altitude Mountain Tourism Motivations and Constraints (고산지대 산악관광 동기와 제약요인에 대한 국제적 연구)

  • Lee, Seung-Koo;Sharma, Renuka
    • Korean Business Review
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    • v.22 no.2
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    • pp.139-156
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    • 2009
  • Mountain tourism is regarded as an important inbound tourist destination for the whole world. The Himalayan Mountains are house of world's highest peaks that includes over 100 mountains exceeding 8,500 meters. However limited dimension of visitors constraints and motivation has been reported about the high altitude mountain. This research work permits the identification of some of the motivation and constraints related to the decision making of tourism in high altitude mountains. The study was conducted in Korea, Indian state (Sikkim), and Nepal (Kathmandu) due to the popularity and the major destination for mountain tourism. A set of 9 motive, 45 motivation items and 40 constraints were initially generated from a review of research pertaining to visitor motivation and constraints. They were considered to be the most appropriate for measuring visitors motivation and constraints for experiencing high altitude mountain tourism. Validity of dimensionality and inter correlation was evaluated by factor analysis investigation and analysis of obtained data revealed that constraints of Korean are significantly higher than Indian and other inbound tourist. Among the major constraints structural constraints were recorded higher for Indian, Korean and other visitors. Similarly, motives of different visitors varied significantly. This analysis also revealed that Korean motives for travelling were influenced by health and pleasure, whereas, Indian and others motives were mostly related to knowledge seeking and adventure. The environmental importance were given priority by all the countries. The purpose of this study includes; (1) To identify the motives of visitors in high altitude destinations. (2) To analysis the major motivation factor for the altitude tourism. (3) To report the major constraints of visitors travelling to the high altitude. (4) To study whether the strength of motivation help to overcome the constraints.

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CLINICO-STATISTICAL ANALYSIS OF POSSIBLE FACTORS LEADING TO PROBLEMS IN THE SURGICAL TREATMENT OF UNILATERAL MANDIBLAR CONDYLE FRACTURES (편측 하악 과두골절의 관혈적 치료에 있어서 예후에 영향을 줄 수 있는 인자들에 관한 임상 통계학적 연구)

  • Sung, Hun-Mo;Lee, Dong-Keun;Min, Seung-Ki;Oh, Seung-Hwan;Jang, Kwan-Sik
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.23 no.1
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    • pp.31-39
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    • 2001
  • The purpose of this study is to reveal the factors leading to the problem of unilateral condylar fractures and suggest a treatment guideline of treatment for good prognosis in surgical treatment. The factors can be age, sex, fracture site, degree of displacement, posterior occlusion loss, post-operative alteration of condylar head position, post-operative condylar head resorption, and maxillomandibular fixation period. One hundred and eleven patients with unilateral condylar fractures, who were treated by surgical method from 1990 Feb. to 2000 Feb., were studied. Minimum follow-up period was 6 months. The results were as follows ; 1. In the age group of $41{\sim}60$, females had significantly higher complication rate than males, therefore we must be careful about treatment of female in this age group 2. In level I fractures of the mandibular condyle, because there were abundant complications when the patients were treated with fragment removal, conservative treatment is recommended over the surgical approach. 3. There were no differences in the complication rate, in the level II, III fractures. but were severe complications in the cases of patients treated by Dr.Nam's method or fragment removal. Therefore, open reduction and internal fixation is recommended over Dr.Nam's method or fragment removal. 4. In level IV fractures, open reduction and internal fixation is recommended 5. Although there was a higher complication rate depending on the degree of deviation, there was no correlation between the degree of deviation and development of complications in each level of fracture 6. Because the complication rate was higher in cases of condylar resorption, vertical dimension loss, and alteration of condylar head position, we must make an effort to prevent such complications during treatment

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