• Wind and Structures
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• v.10 no.5
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• pp.463-479
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• 2007

A series of wind tunnel sectional model dynamic tests of a twin-deck bridge were conducted at the CLP Power Wind/Wave Tunnel Facility (WWTF) of The Hong Kong University of Science and Technology (HKUST) to investigate the effects of gap-width on the self-excited vibrations and the dynamic and aerodynamic characteristics of the bridge. Five 2.9 m long models with different gap-widths were fabricated and suspended in the wind tunnel to simulate a two-degrees-of-freedom (2DOF) bridge dynamic system, free to vibrate in both vertical and torsional directions. The mass, vertical frequency, and the torsional-to-vertical frequency ratio of the 2DOF systems were fixed to emphasize the effects of gap-width. A free-vibration test methodology was employed and the Eigensystem Realization Algorithm (ERA) was utilized to extract the eight flutter derivatives and the modal parameters from the coupled free-decay responses. The results of the zero gap-width configuration were in reasonable agreement with the theoretical values for an ideal thin flat plate in smooth flow and the published results of models with similar cross-sections, thus validating the experimental and analytical techniques utilized in this study. The methodology was further verified by the comparison between the measured and predicted free-decay responses. A comparison of results for different gap-widths revealed that variations of the gap-width mainly affect the torsional damping property, and that the configurations with greater gap-widths show a higher torsional damping ratio and hence stronger aerodynamic stability of the bridge.

• Korean Journal of Psychosomatic Medicine
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• v.3 no.2
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• pp.207-213
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• 1995

Author reviewed psychodynamics and psychoanalytic treatment of obesity. A variety of psychodynamics and unconscious conflicts have been described in obese patients : eating as a defense against depression, eating as a substitute for maternal love, obese body as a larger penis, and eating as a self-soothing. There was a gross neglect of certain normal parenting roles in obese family. The parenatal superego structure was not as perfectionistic. As with children and other patients with preoedipal pathology, in obese patients the analyst in addition to being transference object is a new and different object who promote healthy maturation. Because of obese parients, in there projective identification, can provoke intense countertransference, the analyst have to consider it. On the other hand, many analysts' countertransferences to superobese patients is that huge person recalls one's own childhood relationship with adults and bring forth a feeling of helplessness.

• The Korean Journal of Food And Nutrition
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• v.30 no.5
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• pp.867-879
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• 2017

This study investigated the factors affecting problematic drinking amongst the male university students of the Changwon area (n=367). The participants were divided into 3 groups, and undertook the self-report questionnaire survey. Based on the AUDIT (Alcohol Use Disorders Identification Test) guidelines, problematic drinking were rated as 'no problem' (28.8%), 'at-risk drinking' (41.7%), and 'alcohol abuse' (29.5%). Our study revealed that students living alone, indulged in more club activities, and drank more than 3 cans of carbonated drinks a day; this was significantly high on the AUDIT score (p<0.05). Participation in education was significantly higher (p<0.05), but intention to reduce the monthly alcohol consumption was significantly lower (p<0.001) in the alcohol abuse group. Recognition level of drinking cultures, drinking habits, AUDIT, and nicotine dependence were significantly higher in the alcohol abuse group (p<0.001). Recognition level of drinking cultures and nicotine dependence by the FTND (Fagerstrom Test for Nicotine Dependence) positively correlated with problematic drinking, whereas dietary guidelines and self-esteem showed a negative correlation with problematic drinking (p<0.05). Based on the results of multiple linear regression analysis, the factors affecting problematic drinking were recognition level of drinking cultures (${\beta}=0.47$, p<0.001) and nicotine dependence (${\beta}=0.23$, p<0.001). We conclude that implementation of health education for university students, would aid in rectifying the incorrect perception of drinking. Furthermore, both drinking and smoking should be considered simultaneously.

• Journal of Korean Elementary Science Education
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• v.38 no.3
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• pp.345-359
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• 2019

The purpose of this study is to analyze the educational effects and the improvements of the 'Science Field Trips' Program which developed with the aim of fostering the prospective elementary school teachers' ability to manage science field trips. The participants were 13 senior students from a national university of education. The results of the study are as follows: First, with regard to the effectiveness in the science instruction aspect of the prospective teachers' geological field trip as an experiential activity, the responses of the participants were children's 'scientific knowledge'(69.2%), 'science related attitudes'(46.2%), and 'science inquiry'(30.8%). Second, regarding the effectiveness of the geological field trip in their management of science field trips aspects in the future, the responses of the participants were 'teaching strategies'(92.3%), 'plan implementation'(76.9%), 'teacher's science knowledge'(61.5%), 'self-confidence'(38.5%), 'enhancement of awareness of field trips'(23.1%), and 'career guidance'(7.7%). Third, with regard to the effectiveness in the science instruction aspect of their activities of planning a science field trip in their future working districts, the responses of the participants were children's 'science knowledge'(38.5%), 'science-related attitudes'(38.5%), and 'science inquiry'(23.1%). Fourth, regarding the effectiveness in their management of science field trips aspects of the activities of planning a science field trip, the responses of the participants were 'plan implementation'(92.3%), 'the identification of science field trip sites'(84.6%), 'teaching strategies'(76.9%), 'administrative affairs'(69.2%), 'teacher's science knowledge'(30.8%), 'enhancement of awareness of field trips'(23.1%), 'career guidance'(15.4%), and 'self-confidence' (15.4%). The improvements plans of the program and the suggestions for future research is also described in this study.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.19 no.1
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• pp.85-95
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• 2019

This work shows how to design a robot structure and to control to overcome obstacles while traveling through ducts of various diameters and shapes by three-legged robot. Circuits are centered in the body to connect the three wheel bodies that are driven around the center body with the 4-section slider link structure. Also, the springs are used to contract and expand the robot legs so that it can be caparable of various environments. Geared motor, spring, and belt were selected based on the static and dynamic calculation to be suitable to horizontal and vertical travels. The center body is equipped with a camera and the distance sensors, and a control algorithms are implemented so that it can be successfully performed in L-type and T-type ducts. Using UWB modules and trilateration algorithm, the location of the duct-cleaning robot inside the duct could be identified successfully.

• The Journal of Internal Korean Medicine
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• v.41 no.6
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• pp.1223-1230
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• 2020

Objective: The purpose of this study was to report the effectiveness of Korean medicine (Beewha-eum) on the treatment of non-cardiac chest pain (NCCP) in a patient with non-erosive reflux disease (NERD). Methods: The patient was diagnosed with a spleen-stomach weakness pattern identified by Korean medicine and was treated with herbal medicine (Beewha-eum). The severity of symptoms was assessed with a numerical rating scale (NRS) for chest pain, self-reported dyspepsia degree (%), Korean gastrointestinal symptom rating scale (KGSRS), gastrointestinal symptom score (GIS), and Functional Dyspepsia-Quality of Life(FD-QOL) score. Results: After Beewha-eum treatment, the severity of chest pain was decreased from NRS 8 to NRS 0 and the self-reported dyspepsia degree also decreased from 100% to 65%. The KGSRS score was decreased from 49 to 35, the GIS score was also decreased from 16 to 9, and the FD-QOL score was increased from 20 to 25. Conclusions: The study findings suggested that Korean medical treatment with Beewha-eum could be an effective option for treating NCCP in patients with NERD.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.12
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• pp.1762-1769
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• 2021

The final goal of this study is to develop a system that can analyze whether a wanted vehicle is a criminal vehicle from images collected from black boxes, smartphones, CCTVs, and so on. Data collection was collected using a self-developed black box. The used data in this study has used a total of 83,753 cases such as the eight vehicle types(truck, RV, passenger car, van, SUV, bus, sports car, electric vehicle) and 434 vehicle models. As a result of vehicle recognition using YOLO v5, mAP was found to be 80%. As a result of identifying the vehicle model with ReXNet using the self-developed black box, the accuracy was found to be 99%. The result was verified by surveying field police officers. These results suggest that improving the accuracy of data labeling helps to improve vehicle recognition performance.

• Journal of Oriental Neuropsychiatry
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• v.33 no.4
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• pp.473-484
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• 2022

Objectives: To report a case of a patient with a mild depressive episode accompanied by physical symptoms such as hyposmia visiting a Korean medicine hospital who was treated with oriental psychotherapy in parallel with existentialism-based psychotherapy showing improvement. Methods: For this patient, Korean medicine Psychotherapy was mainly used for treatment. In parallel, existential Psychotherapy, acupuncture treatment, and self-relaxation training were implemented. For estimating this treatment, changes in results of Beck Depression Index (BDI), Beck Anxiety Index (BAI), Numeric Rating Scale (NRS), Korean Version of Sniffin' Sticks Test (KVSS), Butanol Threshold Test (BTT), Cross-Cultural Smell Identification Test (CC-SIT), and somatic symptoms that the patient subjectively expressed were determined. Results: After the comprehensive treatment, it was confirmed that changes in BDI, BAI, KVSS, BTT, CC-SIT, NRS, and subjective somatic symptoms expressed by the patient all showed improvements. Conclusions: We propose that a comprehensive treatment using Korean medicines Psychotherapy in parallel with existential psychotherapy can be used for patients who complain of physical symptoms accompanied by depression and hyposmia.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.637-642
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• 2022

Self-authentication technology using electrocardiogram (ECG) signals is drawing attention as a self-authentication technology that can replace existing bio-authentication. A device that recognizes a digital electronic key can be mounted on a vehicle to wirelessly exchange data with a car, and a function that can lock or unlock a car door or start a car by using a smartphone can be controlled through a smartphone. However, smart keys are vulnerable to security, so smart keys applied with bio-authentication technology were studied to solve this problem and provide driver convenience. A personal authentication algorithm using electrocardiogram was mounted on a watch-type wearable device to authenticate bio, and when personal authentication was completed, it could function as a smart key of a car. The certification rate was 95 per cent achieved. Drivers do not need to have a smart key, and they propose a smart key as an alternative that can safely protect it from loss and hacking. Smart keys using personal authentication technology using electrocardiogram can be applied to various fields through personal authentication and will study methods that can be applied to identification devices using electrocardiogram in the future.

• Journal of Ethics
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• no.84
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• pp.243-274
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• 2012

The purpose of this study is to study the community narrative ethics of China·Taiwan film. in the context of globalization and locality. I especially wish to look this part through narrative·hermenutical approach and communitarian ethics against contemporary liberalism and individualism. In particular, this article focuses on the works of Hou Hsiao-Hsien, Zhang Yimou, Lee Ang, Tsai Ming-Liang, Chang Tso-chi and Chen Kaige. China and Taiwan's main directors show family and country's community narratives through the self understanding and identification that we call narrative conception of the self. The idea of local community and identity is related with inheritances, history and tradition from the past of my family, my city, my tribe, my nation. Main directors make and have the story of those communities which I derive my identity. And community narratives from the life histories that define us form local community's solidarity should have the openness to other communities. Community narratives shouldn't be separated from the aspect of globalization and locality. After all, I examined whether the local community narratives reveals meaningfully from the standpoint of globalization and locality through China·Taiwan film.