• Title/Summary/Keyword: 비대칭적 관계

Search Result 275, Processing Time 0.032 seconds

Functional repair of the cleft lip and palate using Delaire method (Delaire 법을 이용한 구순구개열 환자의 구순 및 코 교정수술)

  • Song, In-Seok;Yi, Ho;Lee, Su-Yeon;Lee, Il-Gu;Myoung, Hoon;Choi, Jin-Young;Lee, Jong-Ho;Choung, Pill-Hoon;Kim, Myung-Jin;Seo, Byoung-Moo
    • Korean Journal of Cleft Lip And Palate
    • /
    • v.9 no.2
    • /
    • pp.93-100
    • /
    • 2006
  • Although the delayed type of rhinoplasty is currently acceptable in the correction of cleft lip and nasal deformity, Delaire tried to achieve the simultaneous nasolabial reconstruction and muscular rearrangement that affect the subsequent skeletal growth of the face. the anatomic muscular reconstruction can be achieved by making the anchorage of the nasolabial muscles of the cleft side to the nasal septum and muscles on the non-cleft side. Two cleft lip patients of 6 and 7 year-old without any previous operation history were treated with the functional cheilorhinoplasty. One patient with incomplete cleft lip underwent a cheiloplasty along with the rearrangement of orbicularis oris muscle. The other patient had a complete cleft lip and palate with accompanying nasal deformity, who underwent the functional cheilorhinoplasty with the reconstruction of anterior nasal base. All the operation was done under the general anesthesia and patients healed without any significant complications. In the incomplete case, the shapes of Cupid's bow was restored, and the length of columella was regained comparable to the non-affected side. In the complete cleft lip and palate case, the depressed nostril was reconstructed with acceptable symmetry by complete releasing of deformed alar cartilage undermined with a dissecting scissors. In summary, the functional repair of cleft lip and nose could be possible at the same time by using Delaire method. This method is effective to correct the primary nasolabial deformity, which results in the restoring favorable anatomy and its function.

  • PDF

Quantitative EEG Analysis on Emotional characteristics of Children experiencing Domestic Violence (가정폭력을 경험한 피해자녀의 감정 특성에 관한 정량화 뇌파연구)

  • Byun, Youn-Eon;Weon, Hee-Wook
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.18 no.11
    • /
    • pp.166-175
    • /
    • 2017
  • This study examined children from two families exposed to domestic violence and had psychological counseling in July 2017 at KOVA, a support organization for crime victims. The subjects were exposed to family violence in excess of 10 years and was protected by the shelter with their mothers who had filed complaints with the local police. Victims of domestic violence often face difficulty in avoiding the source of aggression, and thus experience repetitive attacks. This research was conducted at the Buddhism Brain Research Facility, Seoul University, to identify and quantify the emotional characteristics of the affected children in which it is difficult to escape from their living conditions. Data was collected by BrainMaster, a 19-channel examination kit, and analyzed by NeuroGuide. As a result of analyzing the emotional characteristics of the affected children through Quantitative EEG and brain topographical map, we found an increase of slow wave and problems with abnormality of Alpha, High Beta in the left and right Frontal area asymmetry.

Quantitative Evaluation of Remote Field Eddy Current Defect Signals (배관 결함부 원거리장 와전류 신호 정량화 연구)

  • Jeong, Jin-Oh;Yi, Jae-Kyung;Kim, Hyoung-Jean
    • Journal of the Korean Society for Nondestructive Testing
    • /
    • v.20 no.6
    • /
    • pp.555-561
    • /
    • 2000
  • The remote field eddy current (RFEC) inspection was performed on the ductile cast iron pipes with nominal outer diameter of 100mm, which were machined with various shapes and sizes of defects. Ductile cast iron pipes which are used as water supply pipe have the non-uniform thickness and asymmetric cross section due to relatively high degree of allowable errors during the manufacturing processes. These characteristics of ductile cast in pipes cause the long range background noises in RFEC signals along the pipe. In this study, tile machined defects in pipes were effectively classified by the moving window average (MWA) method which eliminated the long-range noise. The voltage plane polar plots (VPPP) method was used to quantitatively evaluate the depth and circumferential degree of defects. The VPPP signatures showed that the angle between defect signature and the normalized in-phase component on the VPPP is linear to the depth of defects. The nondestructive RFEC technique proved to be capable of quantitatively evaluating the machined defects of underground water supply pipe.

  • PDF

Classification of Service Attributes and Strategic Customer Service Management based on the Asymmetric and Non-linear Relationship between Service Attributes and Customer Satisfaction (서비스 속성과 고객만족과의 비대칭적, 비선형적 관계에 근거한 서비스 속성 분류와 전략적 고객서비스 경영)

  • Park, Jung-Young;Lee, Gye-Hee
    • Journal of the Korean Society of Food Culture
    • /
    • v.23 no.5
    • /
    • pp.605-615
    • /
    • 2008
  • The principal objective of this study was to categorize service attributes on the basis of the asymmetric and non-linear relationship existing between service attributes and customer satisfaction. Researchers generally assume that service attribute performances and customer satisfaction are both symmetrical and linear. That is to say, improvements in attribute performance will inevitably result in increased customer satisfaction. However, this is not always the case. Certain attributes have been shown not to create satisfaction even when improved, and others do not create dissatisfaction even when their performance ratings become negative. Understanding this relationship is crucial not only to researchers, but also to service managers. Service managers can arrange their priorities with regard to which attributes must be improved or promoted first, in an environment of limited technical, financial, and human resources. Many studies into this asymmetric and non-linear relationship have recently been conducted, beginning with Herzberg's motivation-hygiene theory (1976) and the disconfirmation theory, which was eventually developed into Kano's model (1984). This study attempted to determine the impact level of service attributes on incidents of satisfaction or dissatisfaction. It used 30 service attributes generated by Park (2008) in the CIT research into family restaurants. The data were collected from 600 participants, 300 incidences of satisfaction and 300 incidents of dissatisfaction, via an online survey. The t-test was used to confirm the difference between the satisfaction group's and dissatisfaction group's attributes. 11 attributes were found to be significant at a level of p>0.05. This indicates that the 11 attributes exerted different impacts on satisfaction and dissatisfaction, which confirmed the asymmetric and non-linear relationship. 14 attributes were categorized into the core service, 1 attribute into the quality service, 7 attributes into the basic service, and 8 attributes into the neutral service. Strategic customer service management was recommended for the 'A' family restaurant as an example, on the basis of the asymmetric and non-linear relationship and the characteristics of the four service factors.

The Effects of Financial Characteristics on the Relationship between R&D Investment and Firm Value (기업의 재무적 특성변수가 R&D 투자와 기업가치간의 관계에 미치는 영향)

  • Shin, Min-Shik;Kim, Soo-Eun
    • Journal of Technology Innovation
    • /
    • v.20 no.1
    • /
    • pp.45-73
    • /
    • 2012
  • In this paper, we analyse empirically the effects of financial characteristics on the relationship between R&D investment and market value of firms listed on Korea Exchange. The main results of this study can be summarized as follows. Firm size increase the market valuation of R&D investment because it provides economies of scale, easier access to capital market, and R&D cost spreading. Market share also positively effects the relationship between R&D investment and firm value. Alternatively, free cash flow has a negative effect on the relationship between R&D investment and firm value because firms with high free cash flow could be tempted to use the free cash flow to undertake negative NPV projects. The dependence on external finance is a handicap negatively assessed by the market when firms undertake R&D projects due to the higher information asymmetry associated with this kind of project. Labor intensity has a negative effect on the relationship between R&D investment and firm value because the abnormal profits arising from R&D investment are diluted among employees. Capital intensity also has a negative effect on the relationship between R&D investment and firm value due to the greater financial constraints faced by capital intensive firms. In conclusion, several financial characteristics(firm size and market share) positively effect the relationship between R&D investment and firm value, while others(free cash flow, dependence on external finance, labor intensity, and capital intensity) exert a negative effect. Therefore, we conclude that the effectiveness of R&D investment depends on these financial characteristics.

  • PDF

Pervaporation Separation Properties of Chlorinated Hydrocarbons through Poly(1-trimethylsilyl-1-propyne) Modified Memebrane (Poly(1-trimethylsilyl-1-propyne) Modified Memebrane을 통한 유기염소계화합물의 투과증발 분리 특성)

  • 백귀찬;변인섭;이용희;이용택
    • Proceedings of the Membrane Society of Korea Conference
    • /
    • 1998.10a
    • /
    • pp.66-69
    • /
    • 1998
  • 1. 서론 : 본 연구는 시간이 경과함에 따라 free volume감소로 나타나는 PTMSP[Poly(1-trimethylsilyl-1-propyne)] memebrane의 pysical aging을 늦추거나 방지할 목적으로 PTMSP polymer를 합성하여 여기에 hydroxy-terminated PDMS를 graft시켜 PTMSP/PDMS graft copolymer를 제조하였다. 용매증발법에 의해 PTMSP memebrane 및 PTMSP/PDMS graft copolymer memebrane을 제막한 후 PTMSP막의 물리적 노화를 관찰하기 위한 시점에서 조업시간에 따른 이들 막의 transport property을 살펴 보았다. 또한 이들 polymer을 사용하여 0.5 wt%의 희박 dope solution을 제조한 후 여기에 상전환법에 의해 제조된 비대칭 PEI(polyetherimide)지지막을 dip-doping시켜 PTMSP-PEI, PTMSP/PDMS-PEI 복합막을 제조하여 상기의 두 막과 투과증발 특성을 상호 비교하여 보았다. 그리고 객관적 비교 자료를 얻을 목적으로 PDMS막과 PDMS-PEI 복합막을 각각 제막하여 동일조건에서 실험을 수행하였다. 따라서 본 연구는 수중에 미량 용해된 chloroform, trichloroethylene, perchlororthylene, 1,1,1-trichloroethane 등의 유기염소계화합물 제거 실험을 통해 PTMSP, PTMSP/PDMS 등의 dense membrane과 asymmetric composite membrane 사이의 상관관계 및 이들 막들의 투과특성을 서로 비교, 분석하는데 목적을 두었다.

  • PDF

Good Governance and Information Disclosure: Focus on the LAIIS(Local Administration Integrated Information System) (굿 거버넌스와 정보공개 - 지방행정종합정보공개시스템을 중심으로 -)

  • Kim, Mee-Kyung
    • Journal of the Korean BIBLIA Society for library and Information Science
    • /
    • v.19 no.1
    • /
    • pp.203-220
    • /
    • 2008
  • To be a good government, it has to provide accurate information to citizens to help them understand reality well. Furthermore, the government has to provide an authority to the citizens so that they could access to the information system. The information must be shared equally between the government and the citizens. With sincere effort on the information disclosure and clarity of the administration, the government should accomplish good governance. This paper introduces the information disclosure cases to achieve good governance.

Study on the Relationship Between EEG of Brain Laterality and Personality Traits (좌·우뇌 비대칭 뇌파와 성격특성요인의 관계에 대한 연구)

  • Hur, Mi-ra;Lee, A-Ra
    • Science of Emotion and Sensibility
    • /
    • v.19 no.1
    • /
    • pp.83-94
    • /
    • 2016
  • The purpose of this study is to find out the relationships of brain laterality, active EEG over all brain regions and personality traits by measuring EEG signals on the basis of the counseling psychology personality theories. For this study, the EEG of ninety-six college students as measured by an eight channel EEG device and analyzed through the computer and the data of their Big Five Personality Test were analyzed by statistical analysis. The result was that when theta's laterality at the prefrontal lobe is bigger, neuroticism is higher in the personality factors. On each of the brain regions, theta's activity on the left of the prefrontal lobe makes higher neuroticism but lower conscientiousness, and beta's activity on the left of the frontal lobe makes lower extroversion and openness to experience. These results showed that there are statistically meaningful relationships between the brain region activated specific EEG and individual personality or psychological traits. This study branched out into theta band while most previous studies measured in alpha and beta band. Also from these results it suggested the counseling strategy with the brain and follow-up studies.

Analysis of Influence for Breach Flow According to Asymmetry of Breach Cross-section (제방붕괴 형상의 비대칭성에 따른 붕괴흐름의 영향 분석)

  • Kim, Sooyoung;Choi, Seo-hye;Lee, Seung Oh
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.17 no.5
    • /
    • pp.557-565
    • /
    • 2016
  • The risk of collapse in hydraulic structures has become more elevated, due to the increased probability and scale of flooding caused by global warming and the resulting abnormal climatic conditions. When a levee, a typical hydraulic structure, breaks, an enormous breach flow pours into the floodplain and much flood damage then occurs. It is important to accurately calculate the breach discharge in order to predict this damage. In this study, the variation of the breach discharge with the asymmetry in the cross-section of the levee breach was analyzed. Through hydraulic experiments, the cross-section of the breach was analyzed during the collapse using the BASD (Bilateral ASymmetry Degree), which was developed to measure the degree of asymmetry. The relationship of the breach discharge was identified using the BASD. Additionally, the variation of the breach flow measured by the BASD was investigated through a 3-D numerical analysis under the same flow conditions as those in the experiment. It was found that the assumption of a rectangular breach cross-section, which is generally used for the estimation of the inundation area, can cause the breach discharge to be overestimated. According to the BASD, the breach flow is decreased by the interference effect in the breach section of the levee. If the breach flow is calculated while considering the BASD in the numerical analysis of the flooding, it is expected that the predicted inundation area can be estimated accurately.

Formation and Change of Production Network based on Customer-following Overseas Expansion of Korean Subcontractors: Electronic Industries in Hanoi Red River Delta, Vietnam (한국 하청기업의 해외동반진출과 생산 네트워크 형성 및 변화: 베트남 하노이 권역 전자산업을 사례로)

  • Kim, Seonghun
    • Journal of the Economic Geographical Society of Korea
    • /
    • v.23 no.2
    • /
    • pp.147-165
    • /
    • 2020
  • The aim of this study is to find out Korean electronic industries' production network in Hanoi Red River Delta, Vietnam and its change based on customer-following overseas expansion. In-depth interviews with Korean subcontractors were conducted to examine the characteristics of customer-following overseas expansion of Korean subcontractors. Korean subcontracting corporations in electronic industries have expanded into Vietnam as the suppliers to Korean transnational corporations. Since 1990s, Korean corporations have invested into Vietnam but since late 2000s its industrial and geographical concentration has been shifted from textile and clothing industries in Southern Vietnam to electronics in Northern Vietnam. The customer-following overseas expansion of the subcontractors has emerged in three aspects: physical proximity, asymmetrical inter-firm relations and organizational embeddedness. During the process of customer-following overseas expansion, Korean electronic industry production network was transplanted into Vietnam and partially modified. This is because the company's hierarchy and difficulties in changing its trading relationship have affected the process of advancing into overseas markets. Korean transnational corporations seek to establish a stable suppliers through expansion accompanying with its subcontractors, and providing financial and non-financial support to its subcontractors.