• Transactions of the Korean Society of Automotive Engineers
• /
• v.19 no.1
• /
• pp.95-100
• /
• 2011

The test was done on cars travelling at speeds of 20km/h, 60km/h and 100km/h, the performance testing mode for chassis dynamometer. In this test, the secondary waveform were measured, including those using faulty MAP sensors, oxygen sensors and spark plugs. The results from these measurements and their analysis of secondary waveform can be summarized as follows: 1) The secondary waveform measured from the faulty oxygen sensor showed a lot of noise around peak voltage and in the rising and falling sections during spark line which means that the air fuel mixture was non-homogeneous. 2) The secondary waveform from the faulty MAP sensor showed the worst shape compared to other sensors, including variation of spark line, state of air-fuel mixture and velocity of flame front. 3) The spark line time of secondary waveform using a faulty spark plug displayed the shortest and smallest energy spark line, which means that a misfire occurred.

• Journal of Acupuncture Research
• /
• v.27 no.4
• /
• pp.233-238
• /
• 2010

Objectives : This study is designed to find out the improvement of eyelid ptosis and eyeball movement trouble caused by idiopathic oculomotor nerve palsy after diagnosing the patient to Ghan-shil (肝實), Bee, Shin-hur(脾腎虛) and treating the patient with acupuncture and herb medicine. Methods & Results : The changes in clinical symptoms of eyelid ptosis and eyeball movement trouble were described as the patient was treated with acupuncture therapy and herb medicine, Shae-ghan-san gagam(洗肝散加減) and Yukmi-jihwang-tang gagam(六味地黃湯加減). Conclusions : The patient was treated by acupuncture, herb medicine on idiopathic oculomotor nerve palsy for 6 weeks and showed good effect.

• The KSFM Journal of Fluid Machinery
• /
• v.5 no.4 s.17
• /
• pp.26-31
• /
• 2002

The heat produced by the fission in the fuel of HANARO, 30 MW of research reactor, was transferred from the primary cooling water to the secondary cooling water through heat exchangers. The secondary cooling water absorbing the heat was circulated by secondary cooling pumps and cooled through 33 MW of cooling tower. Each capacity of the three secondary cooling pumps was fifty percent ($50\%$) of full load. The two pumps were normally operated and the other pump was standby. One of the secondary cooling pumps has often made troubles by high vibration. To release these troubles the pump shaft has been re-aligned, the pump bearing has been replaced with new one, the shaft sleeve has been replaced with new one, the shaft and the impeller have been re-balanced representatively and/or the vibration of motor has been tested by disconnecting the shaft of pump. But the high vibration of pump cannot be cleared. We find out the weight balance trouble of the assembly in which the impeller is installed in the shaft. After clearing the trouble, the high vibration is relieved and the pump is operated smoothly. In this paper, the trouble solution shooting method of secondary cooling pump is described including the reason of high vibration

• Korean Journal of Health Education and Promotion
• /
• v.21 no.1
• /
• pp.319-328
• /
• 2004

The purpose of this study was to examine the relation between thoracic scoliosis and gastroenteric disorder. In this article, We surveyed sixty two patients and investigated through a questionnaire the health and meal habits, digestive trouble levels, stress levels(BEPSI-K), and the stress response index(SRI). Participants were classified according to each group in over $10^{\circ}$(vertebral scoliosis), under $10^{\circ}$(functional scoliosis) and made a diagnosis of X-ray of scoliosis grade. The data was took statistics on two group by independent t-test, chi-square test with SPSS/PC+ 10.0 program. The statistically significance was a p＜.05 and the following results were obtained； 1. In general characteristics, The thoracic scoliosis was as many as women, weight 50∼60kg, height 160∼170cm, married person. 2. Relations between health and meal habit with thoracic scoliosis was not statistically significant(p＞.05). 3. Relations between thoracic scoliosis and digestive trouble level was statistically significance (p＜.05). 4. Relations between thoracic scoliosis and incidence rate of internal disease was statistically significant(p＜.05). 5. Relations between thoracic scoliosis and stress(BEPSI-K) was statistically significant(p＜.05). 6. Relations between thoracic scoliosis and stress(SRI) was statistically significant(p＜.05). These results lead us to the conclusion that thoracic scoliosis influences digestive trouble, incidence rate of internal disease and stress. However, there results are not easy to explain because of the limitations of a few subjects and a single comparison. Therefore, further research on this study thoroughgoing inspection would clarify the association of thoracic scoliosis and gastroenteric disorders.

• Transactions of the Korean Society of Mechanical Engineers
• /
• v.11 no.6
• /
• pp.1014-1025
• /
• 1987

This paper proposes an approach of building an expert system for designing gear drives. In terms of gear drives the relationship between expert systems and data base systems is explained and a data base system for design, failure detection, and trouble-shooting of gear drives is built on a personal computer by the data manipulation language of dBASE III. This paper proposes a method how to build a data base system and what to consider to build a data base system for gear drives and two kinds of data base systems of design and failure detection of gear drives and trouble-shooting for noise and vibration of gear drives are built. The two data base systems are very effective for the retrieval of information for the gear design, and they will be considerably helpful for the gear design.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.7
• /
• pp.222-230
• /
• 2018

This paper examines gender trouble in the future society from Huxley's Brave New World, in which science is highly developed. In addition, I examined how gender equality was achieved in the World State in which equality and identity were emphasized, and considered the precise meaning of gender equality. Superficially, there are many gender inequality factors in the Reservation, and gender equality is achieved in the World State. However, if we look closely at the World State, we realize that they deprive individual rights under the name of social stability. Therefore, we should reconsider what real gender equality is, and we need to examine what is needed to achieve gender equality.

• 유체기계공업학회:학술대회논문집
• /
• 2001.11a
• /
• pp.197-202
• /
• 2001

The heat produced by the fission in the fuel of HANARO, 30 MW of research reactor, was transferred from the primary cooling water to the secondary cooling water through heat exchangers. The secondary cooling water absorbed the heat was circulated by secondary cooling pumps and cooled through 33 MW of cooling tower. Each capacity of the three secondary cooling pumps was fifty percent ($50\%$) of full load. The two pumps were normally operated and the other pump was standby. One of the secondary cooling pumps has often get troubles by high vibration. To release these troubles the pump shaft has been re-aligned, the pump bearing has been replaced with new one, the shaft sleeve has been replaced with new one, the shaft and the impeller have been re-weight balanced representatively or the vibration of motor has been tested by disconnecting the shaft of pump. But the high vibration of pump cannot be cleared. We find out the weight balance trouble of the assembly that the impeller is installed in the shaft. After clearing the trouble, the high vibration is released and the pump is operated with smooth. In this paper the trouble solution of secondary cooling pump is described including the reason of high vibration.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.19 no.3 s.31
• /
• pp.180-188
• /
• 2006

Objectives : The purpose of this study is to investigate the differences of skin disease, particularly Acne between the rotating shift work nurses and the nurses on a fixed day schedule. Methods : Questionnaries were distributed to 30 rotating shift work nurses(the rotating group) and 34 nurses on a fixed day schedule(the daytime group). The questionnaris included questions on general health concepts, insomnia skin disease(particularly Acne), gastroenteric trouble, menstrual irregularity. Result : 1. There was significant difference on skin disease(particularly Acne) between two groups. 2. There was no significant relation between Gastroenteric trouble and Acne. But, in particular, there was significant relation between Constipation, Gastritis and Acne. 3. There was no significant relation between menstrual irregularity and Acne. 4. In Acne group, more than 70% felt the necessity of treatment, but only 2.5% used Korean Oriental Medical therapy. Conclusion : Disorder of circadian rhythm affects the skin disease(particularly Acne) more than Gastroenteric trouble and menstrual irregularity. But in this study, the total number of the nurse is not enough. So we need more accurate study about the aspects of skin disease. And about the Acne, publicity of Korean Oriental Medical therapy is required.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.29 no.6
• /
• pp.859-867
• /
• 2005

The purpose of this study was to identify the focus of key issues - the view, the trouble, supplementary measures and future divection research, and commercialization${\cdot}$ popularization on natural dyeing. Delphi tests were performed with 36 professional in the academic, the industrial, and the art world. Questionnaire of 1round composed of open-ended question related the view, the trouble, supplementary measures and future divection research and commercialization${\cdot}$popularization. And a 5 point Likert Scale was used to evaluate them in 2 and 3 round. Results of this study and the order of importance in the focus of key issues are as following: The trouble are immoral business ability, using of excessive mordant and lack of standardization. Supplementary measures and future divection research are dyer education, choosing stuff on natural dyeing and consumer education${\cdot}$publicity. And commercialization${\cdot}$popularization are the development of brand, the production of specific goods by regional groups, high-grade articles and the certification system in quality.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2005.11a
• /
• pp.63-66
• /
• 2005

Recently, Trouble of sand supply is occurred according to exhaustion of natural sand resources. therefore, various measures are proposed for solution of trouble of sand supply also the government settled trouble of sand supply through application of crushed sand. but because both crushed sand are poor against general sand, they lead to lowering of qualify of ready-mixed concrete. Therefore, this study evaluated engineering property and durability of concrete using crushed sand and applied evaluation result to fundamental data for quality control of concrete using crushed sand. The results of this study have shown that quality of concrete using crushed sand independently is poor against general concrete. but, the workability, compressive strength and durability of concrete mixed crushed sand with genera can improve on those of concrete used general sand.