• Journal of the Korea Safety Management & Science
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• v.4 no.4
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• pp.129-136
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• 2002

Utilization rate for the restrictive gate and required time and walking distance to board are to be a measure for the gate management and passenger's convenience estimation. So, the main purpose of the gate management are maximization of utilization rate and increment of airport terminal user's convenience through the efficient gate management. This study intends to maximize the utilization rate on usable gates and minimize the passenger's working distance in terminal by concerning about layout, terminal configuration, local passenger of the airport and formulate the gate assignment problem with integer linear programming problem. Then we obtained solution using optimization software LINGO and analyzed that maximize the number of assignment flights and minimize the passenger's walking distance.

• Research in Community and Public Health Nursing
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• v.29 no.2
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• pp.194-205
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• 2018

Purpose: The aim of this study is to investigate and elucidate actual experiences of alcoholics' spouses using familial social gatherings. Methods: A total of nine women whose alcoholic husbands were attending Al-Anon meetings held in Y Cathedral in S District of Seoul were included in this study. Data collection of this study was conducted through in-depth interviews with participants from September 24 to November 30, 2015. Data analysis was conducted at the same time as the data collection, and analysis was performed according to the method suggested by Colaizzi(1978). Results: We categorized the participants' experiences into five themes including 'Trapped in a Deep Dark Tunnel', 'Life of Walking in an Endless Tunnel', 'Reaching a Dead End', 'Walking towards a Ray of Light', 'Finding Oneself on a Strange Path'. Conclusion: The results of this study provide an understanding of the essential structure of the life experiences of alcoholic spouses using familial social gatherings.

• International Journal of Advanced Culture Technology
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• v.9 no.2
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• pp.130-135
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• 2021

Because of the COVID-19 epidemic, many countries have made the obligation to wear masks normal. Wearing masks in public places has become a must. At present, wearing a mask to participate in sports makes it very common. People seek to gain health through exercise but ignore the potential respirato-ry health threat. That is, wearing a mask will cause a decrease in oxygen content in the body. This neg-ative impact becomes more prominent as the wear-ing time and oxygen consumption increase. To pro-tect people from viruses and enjoy a healthy life. This paper proposes a breathing pattern that im-proves blood oxygen saturation while wearing a jogging mask and walking. Namely, shouting breathing pattern. Use a pulse oximeter to measure the blood oxygen saturation of running at different speeds and compare the normal breathing pattern and the shouting breathing pattern. The results show that the shouting breathing pattern has a sig-nificant improvement in the blood oxygen satura-tion of low-speed walking and medium-speed jog-ging.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.05a
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• pp.877-881
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• 2008

In this paper, we propose a real-time people tracking system with multiple CCD cameras for security inside the building. The camera is mounted from the ceiling of the laboratory so that the image data of the passing people are fully overlapped. The implemented system recognizes people movement along various directions. To track people even when their images are partially overlapped, the proposed system estimates and tracks a bounding box enclosing each person in the tracking region. The approximated convex hull of each individual in the tracking area is obtained to provide more accurate tracking information. To achieve this goal, we propose a method for 3D walking human tracking based on the IMPRESARIO framework incorporating cascaded classifiers into hypothesis evaluation. The efficiency of adaptive selection of cascaded classifiers have been also presented. We have shown the improvement of reliability for likelihood calculation by using cascaded classifiers. Experimental results show that the proposed method can smoothly and effectively detect and track walking humans through environments such as dense forests.

• Fire Science and Engineering
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• v.19 no.2 s.58
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• pp.20-28
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• 2005

The existing algorithms or programs of egress time estimations rule out the walking velocity of each single person. But this algorithm can not be applied to estimation of evacuation in a hospital, because most patients are handicapped or walking on various kinds of tools. This study measured the moving velocities of patients according to different types of physical handicap. Also evacuation drills in several hospitals were carried out to establish an algorithm for prediction of total egress time of wards. Besides these measurements awareness of staffs about safety was investigated with the questionnaire. The results of this study is divided into two serial papers.

• Journal of KIISE:Software and Applications
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• v.37 no.8
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• pp.641-646
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• 2010

This paper presents algorithms for real-time navigation of a humanoid robot with a stereo vision but no other sensors. Using the algorithms, a robot can recognize its 3D environment by retrieving SIFT features from images, estimate its position through the Kalman filter, and plan its path to reach a destination avoiding obstacles. Our approach focuses on estimating the robot’s central walking path trajectory rather than its actual walking motion by using an approximate model. This strategy makes it possible to apply mobile robot localization approaches to humanoid robot localization. Simple collision free path planning and motion control enable the autonomous robot navigation. Experimental results demonstrate the feasibility of our approach.

• The Journal of Korean Physical Therapy
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• v.18 no.4
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• pp.27-40
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• 2006

Purpose: This study was to investigate the effect of an arm sling on gait with hemiparesis. Methods: Fifteen patients(8 male, 7 female) with hemiparesis participated in this study and walked self-selected speed over 10m walkway, randomly without arm sling, with Single strap hemisling and Rolyan humeral cuff sling. It were filmed by 5 video camera and used with 3-dimensional motion analyzer system. The following gait variables were analyzed: temporo-spatial parameters, kinematic parameters. Results: In the comparison of temporo-spatial parameters each trial, walking velocity and single support time on affected side was significantly increased and step length on affected side, step length asymmetry ratio, single support time asymmetry ratio was significantly decreased in the Single strap hemisling and Rolyan humeral cuff sling. In the comparison of kinematic parameters each trial, maximal angle of the hip flexion on affected side was significantly increased in the Single strap hemisling and Rolyan humeral cuff sling and maximal angle of the knee flexion on affected side was significantly increased in the Rolyan humeral cuff sling and maximal angle of the ankle dorsiflexion on affected side was significantly increased in the Single strap hemisling. Conclusion: An arm sling improved walking velocity and decreased asymmetry and increased maximal angle of hip, knee, ankle flexion on affected side with hemiparesis caused by stroke.

• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.6 no.1
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• pp.63-74
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• 2011

Objectives: The purpose of this study is to investigate the clinical application of Gamisopunghwalhyeal-tang to three patients traumatic knee joint injury. Methods: Patients are hospitalized at Dept. of Oriental Rehabilitation, Bu-Chun Jaseng Oriental Medicine Hospital, diagnosed as traumatic knee joint injury and treated mainly with herbal medicine ; Gamisopunghwalhyeal-tang. This study was measured by VAS(Visual Analogue Scale) score and walking time and Western Ontario and McMaster Universities(WOMAC) index score. Results: After taking Gamisopunghwalhyeal-tang, the patient's pain was controlled and increased time of walking on floor after treatment. VAS & WOMAC score were decreased. Conclusions: As seen in this three cases of traumatic knee joint injury, Gamisopunghwalhyeal-tang has a positive effect to control pain with traumatic knee joint injury.

• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.6 no.2
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• pp.79-85
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• 2011

Objectives : The Purpose of this study is to investigate the clinical application of conservative treatment for femoral neck stress fracture developed in avascular necrosis of the femoral head. Methods : Patient is hospitalized at Dept. of Oriental Rehabilitation Medicine, Bu-Chun Jaseng Oriental Medicine Hospital, diagnosed as femoral neck stress fracture developed in avascular necrosis of the femoral head and treated by herbal medicine, acupuncture and moxibustion. This study was measured by Visual Analogue Scale(VAS) score, range of motion and walking time. Results : After conservative treatment, the patient's pain was controlled and VAS score was decreased. Range of motion and walking time were improved. Conclusions : As seen in this one case, Oriental conservative treatment has a positive effect to control pain with femoral neck stress fracture developed in avascular necrosis of the femoral head.

• The Journal of Korean Physical Therapy
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• v.32 no.2
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• pp.107-113
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• 2020

Purpose: This study compared the walking ability of chronic stroke patients following either treadmill training with knowledge of the result (KR group) or treadmill training with knowledge of the performance (KP group). Methods: Nineteen patients with chronic stroke were recruited from a rehabilitation hospital. The patients were divided into two groups: a KR group (10 patients) and a KP group (9 patients). They received 30 minutes of neuro-developmental therapy and treadmill training 30 minutes, five times a week for three weeks. The gait parameters were measured before and after training using the Optogait system. Results: After the training periods, the KR group showed significant improvement in gait speed, cadence, step length of the unaffected limb, stance time of the affected limb, and functional gait assessment compared to the KP group (p<0.05). Conclusion: The results showed that treadmill training with KR was more effective in improving the gait speed and cadence, step length of the unaffected limb, stance time of the affected limb, and functional gait ability than the treadmill training with KP. Therefore, to improve the walking ability of stroke patients, it is necessary to consider treadmill training with KR. If it can be combined with conventional neurological physiotherapy, it would be an effective rehabilitation for stroke patients.