창원시 인구의 변화가 주택가격에 미치는 영향에 관한 연구

박희철,정상철,성주한 한국주거환경학회 2019 주거환경(한국주거환경학회논문집) Vol.17 No.4

본 연구의 목적은 창원시의 주택 가격 변동에 대한 지역별 인구 및 연령별 인구 이동의 영향을 조사하는 것이다. 특히 창원시의 인구 이동 (창원시 인구 이동 및 인구 유출)과 30 대, 40 대, 50 대, 60 대 및 고령층의 인구가 어떻게 창원시의 주택 가격에 영향을 미치는지 살펴볼 것이다. 2016년 이전에는 창원시 아파트 매매가격 변화율에 유의한 영향을 미치는 것은 창원시 아파트 전세가격 변화율과 창원시 40대 인구변화율인 것으로 파악되었다. 이러한 현상은 창원시가 통합한 이후 2016년 이전까지 주택시장이 호황세를 가져 온 시기로, 아파트 매매가격과 아파트 전세가격이 상승한 시기이고, 아파트거래량도 많았으며, 2011년부터 2013년까지 주택건설인허가도 증가한 시기로 미분양은 별로 없었던 시기이다. 이러한 시기에서 창원시 아파트 매매가격에 가장 중요하게 영향을 미치는 것은 창원시 아파트 전세가격이고, 연령별로 40대가 아파트 매매를 선도하는 것으로 파악하였다. 2016년 이후에는 창원시 아파트 매매가격 변화율에 유의한 영향을 미치는 것은 2016년 이전과는 크게 다른 결과가 나온 것으로 파악되었다. 2016년 이후에는 경남의 기반인 제조업과 조선업, 중공업이 쇠퇴해지면서 주택시장도 얼어붙기 시작하였다. 창원시 아파트 전세가격 변화율이 창원시 아파트 매매가격 변화율에 영향을 주었지만, 2016년 이전보다 영향력이 감소하였다. 이러한 영향력 감소는 다른 변수들의 영향력이 커졌다는 것을 의미하는데, 창원시 아파트 거래량 변화율, 회사채수익률 (금리), 창원시 인구변화율, 김해시에서 창원시로 유입 인구변화율, 함안에서 창원시로 유입 인구변화율, 창원시 40대 인구변화율, 창원시 60대 이상 인구변화율의 변수들이 창원시 아파트 매매가격 변화율에 유의한 영향을 주었다. ge on the change of housing price in Changwon City. In particular, we will examine how the population movements(population migration to Changwon City and population outflows) and population in the 30s, 40s, 50s, 60s and older age groups affect the housing prices in Changwon City. For the purpose of this research, the model is divided into the period before 2016 and the period after 2016, which is the period of structural change. Before 2016 (January 2011 to December 2015), it was found that the rate of change in the rent price of apartments in Changwon City and the rate of change in population in Changwon City were significant influences on the rate of change in the price of apartments in Changwon City. This phenomenon is the period when Changwon City merged and the housing market was in a boom until 2016. It was the period when apartment sales price and apartment rent price were rising and the amount of apartment transaction was also large. The number of unsold units was not so high. In this period, Changwon city apartment prices are the most important factors affecting the price of apartment rent in Changwon city. In 2016 and beyond (from January 2016 to December 2018), it is concluded that the change in the selling price of apartments in Changwon City is significantly different from before 2016. The rate of change in the rent rate of apartments in Changwon City influenced the rate of change in the price of apartments in Changwon City, but the influence was less than before 2016. This change means that the influences of other variables have increased. Changwon City apartment rate, corporate bond rate (interest rate), Changwon city population rate, Changhwang city to Changwon city, Changwon city to Changwon city population, Changwon City, Changwon City, and Changwon City, respectively. The Changwon City population turnover rate was found to have the greatest effect on the change rate of the apartment sale price in Changwon city. And the population turnover was an important variable. The change rate of the influx population from Changwon city to Changwon city was found to increase the Changwon city apartment price change rate. Population change rate of Changwon City in 40s and population change rate in Changwon City in the 60s or older were found to increase the change rate of the apartment sale price in Changwon City. When the population of Changwon City is in their 60s or older, the cost of living is provided by the money provided through downsizing by area, area, and type.

Remark on particle trajectory flows with unbounded vorticity

박희철 충청수학회 2014 충청수학회지 Vol.27 No.4

The existence and the regularity of the particle trajectory ow X(x, t) along a velocity field u on Rn are discussed under the BMO-blow-up condition: ∫ ∥ω(t)∥BMOd < ∞ of the vorticity ω≡ ∇ × u. A comment on our result related with the mystery of turbulence is presented.

상온하 혈액희석 체외순환에 있어서 혈액 GAS 동태에 관한 실험적 연구

박희철 대한흉부심장혈관외과학회 1980 Journal of Chest Surgery (J Chest Surg) Vol.13 No.2

Extracorporeal circulation by hemodilution technique has been currently used with its clinical safety and good peripheral tissue perfusion in open heart surgery. There is no doubt that $O_{2}$ carrying capacity of the blood is disturbed by decreased hemoglobin level resulting from hemodilution of the circulating blood. From the view point of the blood gas exchange, these experimental studies were undertaken to determined the sate limit of hemodilution in the condition of cardiopulmonary bypass with a constant perfusion flow rate. Twelve adult mongrel dogs weighing 10 to 13 Kg. were anesthetized with pentobarbital and then respiration was controlled with Harvard volume respirator using room air. The cardiopulmonary by pass was performed by use of Sarns heart lung machine (console 5000, 5 head and 2 roller pumps) and Travenol pediatric bubble oxygenator. The perfusion rate during bypass was maintained at a constant rate of 80 ml/min/Kg of body weight. The ratio of oxygen gas flow to blood flow was kept in 3 to 1 constantly. International hemodilution was attained by serial blood withdrawals and immediate infusion of equal volumes of diluants composed of Ringer's lactate, 5% dextrose in water and 25% mannitol solution, proportionally 60%, 30%, and 10%. Arterial and venous blood samples were obtained between 15 and 20 minutes following each hemodilution. Hematocrits and hemoglobin values, $PO_{2}$, $PCO_{2}$ and pH were measured. Oxygen and carbon dioxide contents oxygen consumption and carbon dioxide elimination were calculated groups according to different hematocrit values and the correlations were evaluated. Result were as follows. 1. the arterial $O_{2}$ tension and $O_{2}$ saturation were maintained at the physiological level irrespective of the hematocrit value. 2. The venous $O_{2}$ tension and $O_{2}$ saturation showed a tendency to decline with the decrease in hematocrit value and positive correlation between them (r = +0.49, r = +0.76), The mean values of venous $O_{2}$ tension and $O_{2}$ saturation, however, were not decreased when the hematocrit levels were lower than 20%. 3. The arterial $O_{2}$ content declined lineally in proportion to the fall of hematocrit level with a positive correlation between them (r = +0.95). 4. The venous $O_{2}$ contents were decreased gradually as the hematocrit value decreased with positive correlation between them ( r =+0.89). The trend of diminution of venous $O_{2}$ content, however, was became low according to progressive decrease of hematocrit level. 5. Systemic oxygen consumption was in higher range than $O_{2}$ requirement of basal metabolism when the hematocrit value was above 20%, but abruptly decreased when the hematocrit value became to below 20%. 6. The arterial $CO_{2}$ tension and $CO_{2}$ content showed trend of increasing with progressive decrease of hematocrit value but exhibited a rather broad range and there was no relationship between those value and the hematocrit value. 7. The venous $CO_{2}$ tension and $CO_{2}$ content have also no correlation with change of Ht. value but related directly to those value of arterial blood with positive correlation between them (r = +0.78, r = +0.95_. 8. A-V difference of $CO_{2}$ content and $CO_{2}$ elimination wasnot significantly influenced by Ht. value. From the results, we obtained that feasible limit in inteneional hemodilution is above the hematocrit value of 20% under the given experimental condition.

심낭종양[14례]

박희철,이홍균,Park, Hee-Chul,Lee, Hong-Kyun 대한흉부심장혈관외과학회 1982 Journal of Chest Surgery (J Chest Surg) Vol.15 No.1

Fourteen cases of pericardia I tumor were clinically experienced from June 1966 to July 1981, for 15 years in St. Mary's Hospital, Department of Thoracic and Cardiovascular Surgery, Catholic Medical College. There were three primary tumors of the pericardium, liposarcoma, teratoma and malignant mesothelioma, and 11 metastatic pericardial tumors. In metastatic pericardial tumors, eight were originated from the lung, one was breast, and the other two cases were unknown origin. There were 6 adenocarcinoma, one small cell carcionoma ~nd one alveolar cell carcinoma in 8 cases from the lung, and 5 male and 3 female patients were composed the metastatic pericardial cancer from the lung. In clinical symptoms were dyspnea in all cases, and 9 cases had the generalized edema and enlarged liver size. Six patients had been operated, three of the primary pericardial tumor and three of metastatic pericardial tumor. Two of the primary tumors were cured satisfactorily by the mass removal, but one died due to cardiac arrest at postoperative one day. In metastatic tumors, operation were performed as two pericardial window formation and one left lower lobectomy with pericardial fenestration, but one was died in second operative day. Other nine metastatic tumors were diagnosed by needle biopsy in one case and by cell block of effusion in eight cases.

심장손상의 임상적 경험

박희철,신호승,박철재,홍기우 한림대학교의료원 1987 人間科學 Vol.11 No.1

뇨붕증을 동반한 흉골의 소산구성 육아종 치험 1례

박희철,신호승,홍기우,Park, Hui-Cheol,Sin, Ho-Seung,Hong, Gi-U 대한흉부심장혈관외과학회 1986 Journal of Chest Surgery (J Chest Surg) Vol.19 No.2

Eosinophilic granuloma is one of the histiocytosis X. It may occur in any bone and tissues, but the one originated from the sternum was rarely reported. Recently, we experienced an eosinophilic granuloma at the manubrium sterni, associated with diabetes insipidus, which was surgically resected. Although intranasal spray of DDAVP has been used for the control of diabetes insipidus, the bony lesion was remitted. With the brief review of the literatures, we report the case.

외상성 대동맥우심실 단락치험 1예

박희철 대한흉부심장혈관외과학회 1988 Journal of Chest Surgery (J Chest Surg) Vol.21 No.1

Traumatic aorta-right ventricular shunt is an uncommon but important phenomenon due to development of irreversible cardiac dysfunction. Aorto-right ventricular shunt and aortic valvular laceration following stab wound of the chest was successfully surgically repaired in a twenty-year-old male patient. With the brief review of literatures, we describe the case.

A representation for noncommutative Banachalgebras

박희철 한국전산응용수학회 2005 Journal of applied mathematics & informatics Vol.17 No.1-2

A representation for non-commutative Banach algebras is discussed, which generalizes the Gelfand representation for commutative Banach algebras and the Gelfand-Naimark representation for C-algebras. Its basic properties are also investigated.In appendix, an example of Banach algebra that is neither semi-simple nor radical is presented.

천연가스 다노즐 열원설비의 연료 유동 안정화

박희철,차동진 대한설비공학회 2001 설비공학 논문집 Vol.13 No.12

아프리카 市場에 관한 硏究

朴熙喆 단국대학교 상경대학 1978 商學論叢 Vol.14-15 No.-