진행파를 이용한 디지탈 거리 계전기법의 고장발생각에 따른 고장거리 산출 보정에 관한 연구

정주환,서희석,김철환,신명철 成均館大學校 科學技術硏究所 1992 論文集 Vol.43 No.1

For many years digital protective methods have employed for the calculation of transient phenomena on power system networks caused by faults. This paper presents a travelling wave digital protection scheme to be used as an ultra high speed EHV/UHV transmission line relay. A detection of fault is made by a highly reliable relaying algorithm which makes use of the modal components of the voltage and currents which are caused to be superimposed on the steady state prefault power frequency components following the fault inception. Some of the potential problems and limitations associated with fault angles are achieved using correction factor. Varification of the algoithm is presented through digital computer numerical simulation using electromagnetic transients program(EMTP).

후두 미세수술 후 발생한 일시적인 설인신경 및 설하신경 장애 1예

정철우,주영민,박성철,최정섭 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.11

벼 立毛中 보리 散播栽培時 적정 立毛數 설정 및 둑새풀 발생의 영향

朱廷一,李喜鳳,申哲雨 충남대학교 농업과학연구소 1999 농업과학연구 Vol.26 No.1

벼 立毛中 보리 산파재배법은 파종노력 절감, 적기파종 및 포장조건 불량시 대체파종 등의 장점이 있지만 관행에 비하여 수량성이 낮고 연차간 變異가 큰 특징이 있다. 수량성을 향상시키기 위하여 栽培安定性을 높이는 관리기술이 요구되는데 우선 입모 확보와 둑새풀 방제체제 확립이 절실히 요구된다. 따라서 立毛率 향상시킬수 있는 요인, 다수확을 위한 적정 입모수 설정 및 둑새풀에 의한 감수정도 등을 구명코자 대전에서 올보리를 공시하여 벼 수확 1일전에 파종하고 이에 대한 결과는 다음과 같다 . 1. 볏짚피복과 진압에 의하여 출현율이 향상되었는데 볏짚피복효과가 진압효과에 비하여 높았고 추가진압으로 11% 증수 효과를 기대할 수 있었다. 2. 단위 면적당 적정보리 立毛數는 507개/㎡로 측정되었다. 3. 둑새풀 발생이 많을수록 수량이 감소되었는데 ㎡당 17~22본 발생시 21.8%, 6~11본 발생시 11.0%가 각각 감수되었다. This experiment was carried out to estimate the appropriate seedling stand and to find out the factors of good establishment and the reason of the reduction of yield by water foxtail. The seedling stands was improved by the ice straw mulching and treading by the tracks of combine. The effect of mulching was higher than the treading. The appropriate seedling stands for example yield were estimated about 507 plants per ㎡ and its yield was 24㎏/10a. The higher density of water foxtail, the less the grain yield; 21.8% by 17 to 22 water foxtail stands per ㎡ and 11.0% by 6 to 11 plants.

에어로빅 활동 참여자의 소비만족도에 관한 연구

정명수,임효택,김철주 朝鮮大學校 스포츠科學硏究所 2003 스포츠科學硏究 Vol.14 No.-

This study is the new business about physical education. I try to study for physical education business. Fitness is regards to important for modern life. Everybody need some exercise. But many people have no idea how to do good exercise. Aerobics activity couches have to teach special exercise program. I give two ways for many couches about weight aerobics activity and dance program. Diet program is important for them too. Many people want to loose their weight. But they don't know how to eat and what they choose their food. It needs simple ways. simple ways is efficient more than compliant method. This study is degiend for this problem. I want to give a plenty of aid to many health club in korea. I think that many health club need to start to manage that new style aerobics activity business. The key of this problems are this ways. 1. The service of aerobics activity gave to promote in many styles. 2. Diet program is designed by aerobics activity 3. New aerobic dance program of jazz dance or create dance have to dane compositom(choreography).

CVD-BN에서 poly-Si-SiO₂를 통하여 Si으로의 저농도 붕소확산

金正會,金鐵柱 서울市立大學校 1985 論文集 Vol.19 No.2

Low concentration (??10.16cm??) for boron diffusion was obtained by the diffusion into Si through poly·Si-SiO₂from CBD-BN (Chemical Vapor-Deposited Boron Nitride). Boron concentration distribution was defined by the two boundary diffusion model and any change of oxide layer originating this diffusion are not seen.

세무조사제도의 효율적 개선방안

김주택,정은철 한국산학경영학회 2003 산학경영연구 Vol.16 No.-

최근 세정환경의 변화로 납세자에 대한 서비스의 제공 등 많은 개혁을 시행하고 있으나 합리적이고 효율적인 세정을 위한 개혁조치는 납세자와 직접적으로 접촉하는 세무조사가 중심이 되며 이에 부합되는 공정하고 투명한 세무조사가 이루어지려면 세무조사와 관련한 제반절차의 합법성과 세무공무원의 전문성 및 투명성이 선행되어야 할 것이다. 본 연구에서는 효율적이고 합리적인 세무행정을 위하여 세무조사에 대한 선행연구와 각종 참고문헌을 통해 세무조사의 이론적 측면과 주요 국가의 세무조사제도 및 우리나라 세무조사세도의 개선방안은 다음과 같다. 첫째, 세무조사대상자 선정에 있어서 선정위원회(가칭)와 외부인사 등을 참여하는 제도를 법제화하여 객관성 있는 선정제도의 틀을 마련하여야 할 것이다. 또한 매년 초 공개한 선정기준에 의해 엄중한 세무조사를 실시하고, 연중 실시한 세무조사 결과 자료를 공개하고 피드백 시켜 익년 세무 조사선정기준을 정하는데 활용하도록 한다. 둘째, 세무조사평가방법에서는 조사실적에 대한 통제제도의 개선, 정기조사 심사분석 개선, 평가제외 규정을 확대함으로써 세무조사요원들이 실적에 부담을 갖지 않고 정확하고 공정한 세무조사를 할 수 있게 하여야 한다. 세무조사 대상자 선정위원회에서 세무조사대상자를 선정하는 명확한 규정을 법제화함으로써 세무조사에 대한 인식이 바뀌게 될 것이고, 세무조사를 시행하는데 실적위주의 부담이 줄어들게 되면 조사위원들은 보다 편한 마음에서 정확한 세무조사를 시행할 수 있게 될 것이다. Most of the taxes in Korea are collected using a voluntary reporting payment system that meets most financial requirements. However, many people are unaware of their tax liability, and legal forces to ensure payment of taxes are weak within the Korean social structure. Therefore, the tax system cannot depend only on people's awareness of their tax liability, and for these reasons the Korean government has been investigating a system for fair taxation and the administrative punishment for tax evasion. In addition, an improvement to the taxation system is strongly demanded in order to protect taxpayers' rights, and improve the efficiency and rationality of the system. In this study, I compare and analyze the problems related to each nation's tax investigation system, and then propose an improved plan for a tax investigation system in Korea. It is necessary to prescribe in the bylaws of the Office of National Taxation that the investigator's performance rating or incentives are not affected in any way by the tax investigator's actual records on tax collection, as this type of evaluation can easily lead to conflicts with the primary goals of the law or written constitution.

수영운동 참여가 주부의 여가 및 생활만족에 미치는 영향

김규철,김정주,이석주 경희대학교 체육과학연구소 1997 體育學論文集 Vol.25 No.-

This study has analyzed having 315 housewives in Seoul as the subject and got the conclusion like following, in order to examine positively the influence the participation in a swimming has on housewife's, satisfaction in leisure and life by investigating if there is any significant difference between the housewives' satisfaction in leisure and life who paricipate and don't participate in a swimming exercise. First, As result of a Chi-square analysis, the general characteristics showed a significant difference in the satisfaction in leisure, the experience of immersion and the satisfaction in life according to the yes or no of the participation in as swimming. Second, As a result of verifying the difference in the extent of satisfaction between the domains. a group of participants in a swimming showed more significant difference than a group of those who didn't participate in the satisfaction in leisure. the experience of immersion and the satisfaction in life. Third, It appeared that there were mutual relation and a significant difference between each other in the satisfaction in leisure, the experience of immersion and the satisfaction in life. Fourth. As result of Stepwise Multiple Regression, Only the mental, resting and environmental satisfaction have a strn persuasive power, and the other changing factor has no persuasive bower.

신체화장애 환자의 스트레스 대처방식 및 심리적 특성

이주연,이무석,윤진상,양종철,문지웅,정해원,은성종 大韓神經精神醫學會 2006 신경정신의학 Vol.45 No.6

Objectives : The purpose of this study was to investigate the stress coping strategies and psychological charactehstics, such as combined psychopathology and tendency of symptom interpretation, in patients with somatization disorder. Methods : Thirty patients meeting the criteria of DSM-IV somatization disorder were compared with thirty controls. We evaluated the subjects using Symptom Checklist-90-Revised (SCL-90-R), Somato-Sensory Amplification Scale (SSAS), Symptom Interpretation Questionnaire (SIQ), and The Ways of Stress Coping Questionnaire (SCQ). Independent t-test and Pearson correlation analysis were used. Results : From the results of SCL-90-R subscales, the scores of somatization, obsession-compulsion, depression, anxiety, and psychoticism were significantly higher in patients with somatization disorder than nonnal controls. Somatization disorder patients had greater amplification of physical sensation in SSAS and significantly higher score in physical interpretation of SIQ compared with psychological or environmental interpretation, In the SCQ of somatization disorder patients, we observed generallylower levels of total coping scores than the control group and significant positive correlation between passive coping style of SCQ and psychological interpretation of SIQ. Conclusion : These results show that patients with somatization disorder have various psychopathology, greater amplification of physical sensation, physical interpretation tendency of symptoms, and insufficient copying strategy.

소의 시상하부내에서 Vasopressin과 Oxytion분비세포의 분포에 관한 면역조직화학적 연구

유명철,김종중,장인엽,문정석,정주현,김흥중,조사선 朝鮮大學校 附設 醫學硏究所 1991 The Medical Journal of Chosun University Vol.16 No.1

This study was done to observe the distributions of Oxytocinergic and Vasopressinergic neurons in the hypothalamus of the cow. For the immunohistochemical staining, sections were reacted with the following sequence of solutions: monoclonal anti-vasopressin and anti-oxytocin, biotinylated anti-mouse IgG, avidin-biotin peroxidase complex, and Ni-DAB. The results observed under light microscope were summarized as follows. Our immunohistochemical investigations reveal both vasopressinergic and oxytocinergic neurons in the supraoptic nucleus(SON), paraventricular nucleus(PVN), accessory supraoptic nucleus (ASN), periventricular nucleus(PN), suprachiasmatic nucleus(SCN), and arcuate nucleus(AN), but these two types of neurons were mainly distributed in the PVN and SON and the ratio of the number of vasopressinergic neurons to that of oxytocinergic neurons was 1:1.30 in the PVN, and 1:1.00 in the SON. These two types of neurons were round, oval and spindle-shaped and cell size was 30-55um.

산후에 발병한 특발성 부갑상선 기능저하증 I 예

김정인,김상용,신병철,김경남,서영욱,이범주,김진화,배학연 朝鮮大學校 附設 醫學硏究所 2002 The Medical Journal of Chosun University Vol.27 No.2

Hypoparathyroidism is usually the result of an inadvertent surgical removal of all the parathyroid glands, In some instances, not all the tissues are removed, but the remainder undergoes vascular supply compromise secondary to the fibrotic changes in the neck after surgery, Previously, the surgery for hyperthyroidism was the most frequent cause of acquired hypoparathyroidism. Idiopathic hypoparathyroidism is a relatively rare disease that is characterized by hypocalcemia and hyperphosphatemia due to a parathyroid hormone deficiency of an unknown cause, It usually develops at a young age, and shows various clinical symptoms and signs accompanied with hypocalcemia. In addition, it is rarely associated with polyglandular autoimmune syndrome during the follow-up. Hypocalcemia and idiopathic hypoparathyroidism associated with labor and lactation are rarely reported condition previously. We here describe a case of a woman in whom the symptomatic severe hypocalcemia appeared after her delivery. We reviewed all the previously reported cases and suggest a possible physiological explanation for the association between pregnancy, lactation, and the appearance of symptomatic hypocalcemia.