• Korean Journal of Food Science and Technology
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• v.22 no.6
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• pp.686-689
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• 1990

For the monitoring of kimchi fermentation states, pressure detecting sensor and monitoring device were designed and fabricated. The system was consisted of an air tight fermenting tube(31.5 ml), strain gauge type pressure sensor and signal processing device built with operational amplifier and A/D converter, and interfaced to personal computer. Chiness cabbage kimchi was fermented in the plastic container($150{\times}220{\times}160mm$) at $25^{\circ}C\;and\;30^{\circ}C$. The fermentation was monitored with fermenting tubes containing kimchi. The pressure based kimchi fermentation curve was constructed and showed a typical kimchi curing curve having 2 stepwise pressure increasing pattern.

• Journal of Korean Physical Therapy Science
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• v.18 no.3
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• pp.41-51
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• 2011

Purpose : The purpose of this study for the physical therapy service was to investigate the satisfaction of the parent whose child has a disability and which factors affect their satisfactions. 153 questionnaires were surveyed from parents who experienced services of physical therapy offered in 3 general hospitals, 6 disabled daycare centers and 2 welfare centers located in Jeonnam area for one month, Sep. 2009. The results of this study were as follows: 1. In the parent's satisfaction of physical therapy program, there was a significant difference in satisfaction according to their place of residence(p<.05). 2. In the child's satisfaction of physical therapy program, there was a significant difference in satisfaction according to their diagnosis time(p<.05). 3. In the general characteristics of the condition of workroom, the satisfaction of physical environment, therapist's attitude, and physical therapy program revealed the significant differences(p<0.05). In the satisfaction according to institution, only physical environment has a significance(p<.05). 4. The satisfactions were $4.17{\pm}0.67$, $3.97{\pm}0.60$ and $3.90{\pm}0.68$ for physical therapist's attitude, physical environment and physical therapy program, respectively. The overall satisfaction revealed $4.01{\pm}0.58$, relatively high.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.68 no.1
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• pp.199-206
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• 2019

Recently, an expansion of safety facilities has been widely applied to effectively manage the safety of train operation due to increase of the high-speed section of the general railway and the introduction of high-speed train. Accordingly, performance improvement, upgrading and high reliability of existing safety devices are required. the dragging detector, one of the safety devices, is an analogue system that consists of closed circuit with an electric current flows and operates when the closed circuit is opened by the impact of the dragging object. Such method has unreasonable problem that should be replaced after being detected. It is need to replace with an automatic return type dragging detector which is easy to maintain. In addition, it is necessary to develop a dragging detector that applicable to general railway and urban railway including high-speed railway, in accordance with the speeding up and densification of trains, although it is currently applied only to high-speed railway. In this paper, we propose an automatic return type dragging detector which has versatility and excellent maintainability with digital sensor and real time monitoring.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.32 no.1
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• pp.1-5
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• 2019

The overhead contact line (OCL) is a key piece of equipment for transmitting electrical energy to the pantograph of rail cars. Recently, a 400 km/h OCL was applied to the Honam high-speed line, and its performance was examined by running HEMU-430X. For the study, we analyzed the current of catenary wire concurrently while running HEMU-430X in the Honam high-speed line. Specifically, this study recorded the currents for each speed during operation of the railway vehicle. The analysis of the frequency of line current showed generation of third-harmonics, 15th-harmonics, 17th-harmonics, and 19th-harmonics. The current of catenary wire is a basic technology assessment used to determine the electrical safety of electric railway systems, and it can be used as a technology for analyzing circulating currents generated in the current configuration, as well as for analyzing electric fatigue of the OCL components.

• Clinics in Shoulder and Elbow
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• v.11 no.1
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• pp.29-36
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• 2008

Purpose: We wanted to evaluate the relationship between the clinical outcomes and cuff integrity after open rotator cuff repair and we wanted to analyze the causes of rotator cuff retear. Materials and Methods: 78 patients who underwent open rotator cuff repair were enrolled from 2004 to 2006. All the patients were observed for a minimum follow-up of 12 months and they were evaluated by magnetic resonance imaging (MRI). The clinical outcomes were accessed by dividing the patients into the retear group and the intact group. The groups were also compared to analyze the cause of rotator cuff retear according to the preoperative tear size, the symptom duration, and so on. Results: The clinical outcome of the retear group (n=22) was improved significantly after operation (p<0.001, p<0.001), but the muscle power was not improved significantly (p=0.099, p=0.243). More retears were found in the patients who had a larger preoperative tear (p<0.001) and the symptom duration of the retear group was longer (p=0.027). Conclusion: Although there were retear after rotator cuff repair, the clinical outcomes were improved. Yet the muscle power of the supraspinatus and external rotator were not improved significantly. There were more retears for the cases that had a larger preoperative tear size and a longer duration of symptoms.

• Journal of the Korean Arthroscopy Society
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• v.16 no.1
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• pp.79-86
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• 2012

The conservative treatment for impingement and rotator cuff tear includes rest, nonsteroidal anti-inflammatory drugs (NSAIDs), local steroid injection and physiotherapy depending on the purpose to relieve the pain and inflammation, in addition, stretching exercise to recover flexibility and strengthening exercise to recover the function could be used. When these conservative treatments are divided into multiple steps, the first one contains pain relief, modification of daily activity and stretching exercise. Second step includes strengthening exercise of the anterior/posterior cuff and peri-scapular muscles and eventually. The third step includes training program to return to job, housework and hobby activities and maintain. Thus, the key of these step wise approach for the treatment of impingement and rotator cuff tear is exercise program. Understanding of various exercise program and apply to the patients properly is most important for the conservative treatment of impingement and cuff tear.

• 대한예방의학회:학술대회논문집
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• 1999.10a
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• pp.200-201
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• 1999

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.183-184
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• 2014

본 논문에서는 유아에게 효과적인 IT 기술 및 센서네트워크 체험을 위한 IT 모듈형 기차 완구를 소개 한다. 이 완구를 통해 센서모듈과 동작모듈을 자유롭게 조립하도록 하여, 조립 방식에 따라 다양한 기차 로봇을 만들어 낼 수 있는 키트(kit) 형태의 완구를 제공할 수 있도록 한다. 또한 센서 모듈과 동작 모듈을 상황에 맞게 짝지어 줄 수 있는 통신방식을 제안함으로써, 원활한 모듈간의 통신을 지원하는 방법을 소개한다.

• Applied Biological Chemistry
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• v.10
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• pp.47-61
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• 1968

Sweetpotato infected by Soft-rot, Rhizopus nigricans, has been investigated for its biochemical changes. The results of the present experiment are summarized as follows: 1. From the Soft-rotted tuber, nineteen Ehrlich's positive substances and three fluorescent compounds which had not been found in a healthy tuber were detected with thin layer chromatography. 2, Ipomeamarone and umbelliferone, each of which are predominating substances among the Ehrlich's positive and fluorescent compounds, were isolated by silica gel column chromatography and studied for their identities. 3. Time course biosynthesis of the metabolites was studied and discussed for their possible biosynthetic pathways. 4. Among the metabolites, ipomeamarone and ipomeamarone-like substances have enzyme: inhibitive action against ${\alpha}$-amylase and probably other enzymes; the inhibition type was determined as the uncompetitive one. 5. Ipomeamarone obtained from soft-rotted sweetpotato was proved to have an uncoupling action as 2, 4-dinitrophenol.

• Korean Journal of Food Science and Technology
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• v.20 no.6
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• pp.845-849
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• 1988

A laboratory scale storage facility consisting of a cold room, sample jars and a ventilation device was designed and built. Storaging sample jars (1.7 l) for fruit were fabricated with transparent acryl and provided with a constant air flow. For the supplying of air to sample jars, the air distributing system was built with solenoid valves, an air precooling coil and a pressure equalizing tank. To provide the programmable storaging environment of the facility a microprocessor-based controller was designed and installed. The controller was built with the 8 bit microprocessor (Z-80), EPROM, RAM, programmable peripheral interface(8255 PPI), and A/D converter. Softwares for the auto-temperature measurement and control of the storage system were developed and systemized in ROM. The automated storage system was applied to citrus storage, and the temperature of the storage facilities was successfully acquisited to the computer and controlled.