• Title, Summary, Keyword: Visual Approach

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A Study on an Application of the Protection for the Visual Segment of the Approach Procedure focused on Taean Airport (접근절차의 시계구간 보호 적용 연구 - 태안비행장을 중심으로 -)

  • Kim, Dohyun;Hong, Seung Beom
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.22 no.2
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    • pp.9-15
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    • 2014
  • 'Visual segment surface' means a surface that extends from the missed approach point of non precision approaches (or the decision altitude location for approaches with vertical guidance and precision approaches) to the threshold to facilitate the identification of and protection from obstacles in this visual segment of the approach. Validation is the necessary final quality assurance step in the procedure design process, prior to publication. The purpose of validation is the verification of all obstacle and navigation data, and assessment of flyability of the procedure. This paper shows how to apply the protection for the visual segment of the approach procedure, and the results of the validation for visual segment surface conducted at an airport.

Modified Trans-Middle Temporal Gyrus Approach for Trigonal Tumor to Preserve Visual Field

  • Choi, Jeong-Wook;Jung, Shin;Jung, Tae-Young;Jang, Woo-Youl;Moon, Kyung-Sub;Kim, In-Young
    • Journal of Korean Neurosurgical Society
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    • v.50 no.6
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    • pp.538-541
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    • 2011
  • Objective : We evaluated a modified trans-middle temporal gyrus (MTG) approach with good postoperative visual preservation for patients with trigonal tumors. Methods : Three patients with a trigonal tumor were treated via the modified trans-MTG approach guided by a neuro-navigator. Modified trans-MTG approach involve the incision at the MTG within 5 mm to the superior temporal sulcus. This approach makes a proper trajectory to the trigone but also reduces the retraction injury of MTG as little as possible to prevent postoperative visual field defect. Preoperative and postoperative visual field examination using perimetry was performed to evaluate the visual field. Results : Three patients underwent surgery for lymphoma in the right trigone, meningioma in the left trigone, and focal enhancing nodule in the right paratrigonal area, respectively. In case of lymphoma, preoperative examination showed a left homonymous hemianopsia : one week later after surgery, a visual field examination was performed and revealed improvement of the visual field defect. In case of the meningioma, the preoperative examination showed no visual field defect : one month later, the visual field had no defect. In case of the enhancing nodule, preoperative visual field testing revealed a partial left homonymous hemianopsia. Visual examination within one month after surgery showed no visual field defect. All three patients treated with the modified trans-MTG approach showed no visual deterioration after surgery. Conclusion : The modified trans-MTG approach provides a safe and useful technique for trigonal tumors without postoperative visual field deterioration and affords adequate exposure of the trigonal tumor with a short trajectory.

The Effects of Postural Control based on Bobath Approach for Body Schema and Visual Perception of Middle Cerebral Artery Infarcts : Case Report (보봐스 개념에 기초한 중대뇌동맥 경색 환자의 자세조절이 신체도식과 시지각에 미치는 영향 : 단일사례연구)

  • Lee, Dae-Hee;Ro, Hyo-Lyun
    • Journal of the Korean Society of Physical Medicine
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    • v.4 no.3
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    • pp.193-200
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    • 2009
  • Purpose:In this study is to verify the effects postural control training based on Bobath approach for body schema and visual perception on Middle Cerebral Artery(MCA) Infarcts. Methods:The subject was a 46 years old man with MCA infaction, lives in B city. An AB design for a single-subject research was used for this study. The procedures consisted of 1 time of baseline phase(A), 20 times of treatment phase(B). We applied the Bobath approach at the subject. Treatments included to facilitate trunk alignment and stability, and to train weight bearing and shifting, to facilitate pelvis movement, and to train walk especially stance phase and assist up-down stairs locomotion in environment similar to actual daily life. Results:With this treatment, the majority of body schema and visual perception and postural control was improved in treatment phase compared with in baseline phase. Therefore, this study supported the effectiveness of postural control training based on Bobath approach for body sechma and visual perception of hemiplegia. Conculusion:This study is integrated postural control training with Bobath approach that are widespread for hemiplegia and measured outcomes based on individualized therapy goals. Consequently the study is suggested the meaning of quality effectiveness of Bobath approach.

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The Situation Analysis of Fashion Retail Store According to Attributes of Visual Store Environment in Korean Traditional Market (재래시장의 시각적 점포환경 속성에 따른 재래시장 패션점포의 현황분석)

  • Park, Hyun-Hee;Jeon, Jung-Ok
    • Journal of the Korean Home Economics Association
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    • v.46 no.6
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    • pp.1-11
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    • 2008
  • The purpose of this study is to find the component factors and attributes of visual store environment and to suggest visual merchandising strategies which fit for fashion retail store in Korean traditional market. For the study, observation and in-depth interview were executed for consumers who had purchase experiences at Korean traditional market in city area. The results were as follows. First, the component factors of visual store environment for Korean traditional market were external factor, internal factor, and structural factor. Second, the attributes of visual store environment in Korean traditional market were approach convenience, cleanness, attractiveness, publicity, efficiency, and informativeness. On the basis of these six attributes, real states of fashion retail store in Korean traditional market were analyzed. This study has a meaning in confirming the possibility of differential approach method on the basis of the attributes of visual store environment in Korean traditional market.

Consumption of Visual Cues in Computer-Mediated Environments

  • CHOI, Hwanho
    • Journal of Distribution Science
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    • v.18 no.8
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    • pp.23-33
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    • 2020
  • Purpose: In the digital age, visual cues in computer-mediated environments are becoming a very popular means of communication. Therefore, it is a very critical market for marketers to utilize for marketing communication and platform providers and manufacturers of mobile devices which create and distribute the visual cues While the prevalent research on visual cue consumption focuses on the positive side, the dark side of consuming visual cues has not been investigated. Therefore, in this research, the dark side of using visual cues, such as difficulties and problems in their application, will be investigated. Research design, data, and methodology: Due to the nature of this study, a netnography approach was adopted. Twitter which the users regularly utilise visual cues in their communications was a prime source for data of this research. Results: This research suggests that visual cue users experience anxiety about the subordination of expression and suffer from the myth of an ideal practice of expression. Conclusions: As the previous research emphasised the complementary role of visual cues, has failed to recognise the problems associated with the extensive and growing dependence on visual cues. This awareness demonstrates that we need to take a careful approach to visual cue usage.

Surgery of Parasplenial Arteriovenous Malformation with Preservation of Vision - A Case Report - (부뇌량팽대 동정맥 기형의 수술에서 시야의 보존 - 증례보고 -)

  • Joo, Jin Yang;Ahn, Jung Yong
    • Journal of Korean Neurosurgical Society
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    • v.29 no.6
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    • pp.815-821
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    • 2000
  • Parasplenial arteriovenous malformations(AVMs) are rare vascular malformations which have distinct clinical and anatomical features. They are situated at the confluence of the hippocampus, isthmus of the cingulate gyrus and the gyrus occipitotemporalis medialis. These lesions are anterior to the calcarine sulcus and their apex extends towards the medial surface of the trigonum. Posterolaterally, these lesions are in close proximity to the visual cortex and optic radiation. The objectives in the surgery of parasplenial AVMs are complete resection of the lesions and preservation of vision. These objectives must be achieved with comprehensive understanding of the following anatomical features :1) the deep central location of the lesions within eloquent brain tissue ; 2) the lack of cortical representation of the AVMs that requires retraction of visual cortex ; 3) deep arterial supply ; 4) deep venous drainage ; 5) juxtaposition to the choroid plexus with which arterial supply and venous drainage are shared. A 16-year-old female student presented with intraventricular hemorrhage from a right parasplenial-subtrigonal AVM. The lesion, fed by posterior cerebral artery and drained into the vein of Galen, was successfully treated by the inter-hemispheric parietooccipital approach. To avoid visual field defect a small incision was made on precuneus anterior to the calcarine sulcus. In this report, the authors describe a surgical approach with special consideration on preservation of visual field.

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A Study on the Semiology and Quantitative Psychological Analysis of Sequence Landscape of National Park (국립공원 Sequence 경관의 기호학과 계량심리학적 분석에 관한 연구)

  • 김세천
    • Journal of the Korean Institute of Landscape Architecture
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    • v.19 no.3
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    • pp.55-71
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    • 1991
  • The purpose of this thesis is to suggest objective basic data for the environmental design through the quantitative analysis of the visual quality included in the physical environment of Basemsagol valley sequence landscape. For this, visual volumes of physical elements have been evaluated by using the mesh analysis, spatial images structure of physical elements have been analyzed by factor analysis algorithm, and degree of visual quality have been measured mainly by questionnaires. Also, this study aims to understand semiotics and to grope the possibility of application to the sequence landscape assessment. A semiological approach suggests a new dimension in sequence landscape assessment, which is a contrast to the existing scientific evaluation methods. Result of this thesis can be summarized as follows. Visual volumes of the immediate vegetation, rock, bridge, road and distant vegetation are found to be the main factor determining the visual quality. Factors covering the spatial image of natural park sequence landscape have been found to be the overall synthetic evaluation, potentiality, natural quality, spatial, appeal and dignity. By using the control method for the number of factors, T.V. has been obtained as 40.22%. The characteristics of the semiological approach is qualitative, open, holistic, and experiential, whereas that of the scientific approach is quantitative, closed, reductive, and experimental.

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Visual Preference Predictors of interiors in the Informational Approach: its physical attributes and the relationships between these attributes and preference (정보적 접근방법에 의한 실내공간에서의 시각적 선호도: 예측변수들의 물리적 속성과 선호도와의 관계)

  • 노정실;김유일
    • Journal of the Korean Institute of Landscape Architecture
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    • v.27 no.1
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    • pp.11-18
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    • 1999
  • The objective of this study are to figure out the physical attributes of the three predictors in the Informational Approach: complexity, coherence, mystery and to investigate the relationships between these attributes and the preference exploratively. Visual inspection of the scenes relative to their rated levels of the predictors revealed the existence of relationship between these variables and the physical attributes. The following are the summary of the relationship between three predictors and the physical attributes: (1) The level of complexity was associated with the pattern of physical attributes which were the amount of facility, line, shape, color plant and arrangement of the visual elements. (2) The level of coherence was related with the regular arrangement of the visual elements. For example, there was certain pattern founded the color, shape, texture was applied to the various space repetitively and symmetrically. (3) The level of mystery had the relationship with the physical attributes of screen, spatial definition, distance of view, physical accessibility, radiant forest, the depth of space.

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A Difference Analysis on Visual Approach Accessibility of Airline Pilots Based on Flight Experience including Non-parametric Statistical Test (정기항공사 소속 조종사의 비행경력에 따른 시계접근능력 차이 분석 : 비모수 통계검정을 포함하여)

  • Lee, Gun-Young;Hwang, Jae-Kap;Jang, Ji-Seung
    • Journal of Advanced Navigation Technology
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    • v.23 no.2
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    • pp.104-113
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    • 2019
  • There are keen competitions among the air operators to recruit competent pilots, which could be adversely affect the safe operation of aircraft. This study is aimed to identify the correlation between the flight experience of the pilot of the air transport operator and competency on visual approach operation. About 2,400 sets of flight training data of several pilots of an air transport operator was analysed for this study. The analysis showed that most captains were able to make stabilized visual approach regardless of his/her flight experience of any type of aircraft, while the first officers were able to make a stabilized visual approach with more than 1,500 hours of flight experience for each rated type of aircraft. This should be considered during making policies for the supply and demand of pilots for the safe operation of air transport.

A discursive approach to analysis of definition of graph in first year middle school textbooks (담론적 관점(discursive approach)에서 중1 수학 교과서의 그래프 정의 분석)

  • Kim, Won;Choi, Sang-Ho;Kim, Dong-Joong
    • Communications of Mathematical Education
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    • v.32 no.3
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    • pp.407-433
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    • 2018
  • In order to analyze textbooks from a discursive approach, the purpose of this study is to structuralize an analytic framework based on previous literature review and apply it to analyzing the meanings and their syntheses developed by words and visual mediators appeared in the definition of graph in first-year middle school textbooks. The discursive approach consists of the communicational approach developed by Sfard(2008) and the systemic functional linguistics developed by Halliday(1985/2004). In this study, ideational meta-functions for ideational meanings and interpersonal meta-functions for interpersonal meanings were employed to analyze the meanings produced by words and visual mediators in textbooks, whereas textual meta-functions for textual meanings were used for analyzing the synthesized relationships between words and visual mediators. Results show that first, density in mathematical discourse was very high and subjects in mathematical activities were ambiguous in the ideational meanings of words, and behavior aspect was more emphasized than thinking aspect in the interpersonal meanings of words which request student participations. In the case of ideational meanings of visual mediators, there was a lack of narrative diagrams, whereas there were qualitative differences in the case of offer. Second, there was a need for promoting a wide range of diverse synthetic relationships between words and visual mediators for developing enriched mathematical meanings through the varying uses like specification, explanation, similarity, and complement. These results are so important that they provide a new analytic framework from a discursive approach to textbook analysis because not only words, but also visual mediators are analyzed as tools for producing meanings in mathematics textbooks and their synthetic relationships are also examined.