골프장 그린의 볼마크 수리방법에 따른 벤트그래스의 회복속도 비교

박종하,주영규,이재필,김두환 한국잔디학회 2010 Weed & Turfgrass Science Vol.24 No.2

This study was conducted to investigate a proper method of ball mark repair by comparing the creeping bentgrass recovery speed on golf course green treated by various methods of ball mark repair. Nine general repairing methods were tested and compared; control (no repair, A type), two common methods of USGA (B type) and GCSAA (C type), three methods with fork shaped hand set performing at Korean golf courses (Ansung Benest, D; Sky72, E; Lakeside,F type), and three methods using the repair machine with 6, 8, or 14 teeth (G, H, I type, respectively). Three creeping bentgrass cultivar of ‘Penncross’, ‘T-1’, and ‘CY-2’ were tested in this field experiment. This test was carried out from September to November in 2009 at the nursery on the Seoul Lakeside Golf Course. The average speed of turfgrass recovery after various ball mark repairing methods have been ranked as in the order of E, D, C, B, F, I, H, G, and A. The methods of hand practise showed more effective results than repair method using machines. The ball mark recovery speeds of ‘Penncross’ were in the order of E, D ,B, C, F, I, H, and A. In the case of ‘T1’ and ‘CY-2’, similar orders were showed as D, E, B, F, C, H, I, A, G and the order of D, E, C, F, B, H, G, I, A, respectively. The ball mark recovery speed among creeping bentgrass cultivar resulted in the order of ‘CY-2’, ‘Penncross’, and ‘T-1’. The most proper method of ball mark repair was repair method using a hand set tool especially the method of the Sky72 Golf course (E type). At the first, remove a damaged grass area with fork and tap. And then gather the side grasses into the center area with pulling the grasses with fork. After that, make harden and flat on the turf surface by pounding and rolling with the round wooden stick. The final step, water the repaired grass surface. This ball mark repairing practise showed a most rapid and proper recovery method on creeping bentgrass green.

만성콩팥병에서 단백뇨의 조절

박종하 대한내과학회 2022 대한내과학회 춘계학술대회 Vol.2022 No.-

도시직장인의 여가활동제약이 여가만족에 미치는 영향

박종하,김영아,김부일,최성애 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.4

수술 전 초음파와 와이어 로프를 이용한 경피적 수근관 유리술

박종하,신승호,김상우 대한수부외과학회 2012 대한수부외과학회지 Vol.17 No.3

목적: 저자들이 시행했던 새로운 방법의 경피적 수근관 유리술을 소개하고 그 결과를 보고하고자 한다. 대상 및 방법: 수술 전 초음파와 와이어 로프를 이용하여 피부 절개 없이 경피적 수근관 유리술을 시행하여 6개월 이상 추시된 수근관 증후군 환자 30명 40예의 치료 결과를 임상 증상의 개선과 합병증 발생을 중심으로 후향적으로 분석하였다. 평균 환자나이는 53.7세(44-79세)였고, 평균 추시 기간은 12.8개월(6-18개월)이었다. 보스톤수근관 설문지를 이용한 임상 평가와 근력 측정의 항목을 평가하였다. 결과: 전 예에서 수술 후 야간통 및 손저림 등의 주요 증상이 소실되었으며 신경, 혈관 손상 등의 주요 합병증은 발생하지 않았다. 수술 후 6개월의 보스턴 수근관 설문지결과 증상 점수(symptom severity score)는 수술 전 3.67±0.25에서 수술 후 6개월1.55±0.33으로(p<0.05), 기능 점수(functional status score)는 3.52±0.38에서2.09±0.42로 향상되었다(p<0.05). 모든 환자에서 수술 후 악력 및 집게 파지력의 회복을 보였다. 결론: 수술 전 초음파 및 와이어 로프를 이용한 경피적 수근관 유리술은 수술 후 동통의 감소와 빠른 회복의 장점이 있으며 합병증 없이 증상 및 기능이 의미 있는 호전을보여, 안전하고 유용한 치료 방법이다. Purpose: The aims of this study were to introduce a new method of percutaneous carpal tunnel release and report its results. Materials and Methods: After preoperative ultrasonographic mapping, a percutaneous carpal tunnel release was performed using the wire rope through two skin needle punctures. Forty wrists of 30 patients were evaluated restrospectively in terms of the symptomatic resolution and complications. The mean age of patients was 53.7 years ranging from 44 to 79 years. The mean follow-up period was 12.8 months ranging from 6 to 18 months. Results: All cases showed complete relief or marked improvement of symptoms postoperatively. There was no neurovascular injury or other major complication. At postoperative 6 months follow-up, according to the Boston questionnaire, symptom severity score improved from 3.67±0.25 preoperatively to 1.55±0.33 postoperatively, and functional status score improved from 3.52±0.38 preoperatively to 2.09±0.42 postoperatively. All patients regained grip strength and pinch strength after surgery. Conclusion: The percutaneous carpal tunnel release using the preoperative ultrasonograhic mapping and the wire rope is an effective, reliable and safe method with the benefits of less postoperative pain and early recovery.

분할 췌장을 동반하지 않은 환자에서 부유두를 통한 내시경 시술로 치료한 췌액 유출

박종하,최정준,표성희,정진욱,김성두,손현영,이상수,서동완,이성구,박도현,김명환,송문희 대한소화기내시경학회 2004 Clinical Endoscopy Vol.28 No.5

Endoscopic treatment has been performed in a variety of pancreatic ductal diseases such as stones, strictures, sphincter stenosis, and ductal disruption and is known to be an effective therapy in some patients. Endoscopic treatment through the minor papilla is frequently done in patients with pancreas divisum. Few data are, however, available concerning endoscopic minor papilla interventions in patients without pancreas divisum but with difficult access to the main pancreatic duct at the major duodenal papilla. We present a 49-year-old man, who had pancreatic ductal leak caused by previous pancreatic surgery. He was treated by endoscopic naso-pancreatic drainage and pancreatic ductal stenting through the minor papilla, so called pancreatic rendezvous technique. Follow- up ductography after two-weeks of naso-pancreatic drainage showed no leak. This case shows that minor papillar orifice could be an alternative access for therapeutic endoscopic intervention in a patient with traumatic pancreatic ductal leak without pancreas divisum. 최근 췌관 결석, 췌관 협착, 췌관 폐쇄, 췌관 손상 등의 다양한 췌장 질환에서 내시경을 이용한 치료가 활발히 시행되고 있으며, 일부에서는 그 효과가 입증되고 있다. 정상적인 해부학 구조를 가진 경우 치료 내시경 시술은 주유두를 통해 이루어진다. 분할췌장이 있는 환자에 있어서 부유두를 통한 내시경 치료는 이미 잘 알려져 있으나, 정상 해부학적 췌장 구조를 가지면서 주유두를 통한 주췌관으로의 진입이 어려운 환자에서 부유두를 통한 내시경 시술의 가능성이나 유용성에 관한 보고는 매우 드문 실정이다. 이에 저자들은 췌장의 양성 낭성종양 적출술 시행 후 발생한 췌관 손상으로 췌액 유출이 있는 환자에서, 주유두를 통한 치료 내시경 시술이 용이하지 않아 부유두를 통한 내시경 경비 췌관 배액술과 췌관 스텐트 삽입술로 췌액 유출을 치료하였던 증례를 보고하는 바이다.

Cds簿膜의 結晶構造 및 電氣的 特性

朴鍾夏,朴福男 조선대학교 원자력연구소 1983 原子力硏究 Vol.3 No.-

CdS thin films were deposited by chemical bath deposition method. X-ray diffraction patterns of CdS thin films with various temperature (300℃, 350℃, 400℃) and annealing time (30min, 60min, 90min, 120min) were obtained rotating Bragg angle 2θ (from 20˚to 60˚ by X-ray diffractometer. The CdS thin films have simple cubic structure with lattice constant 5.818A and polycrystalline with crystal orientation (111), (220) and (311). Van der Pauw's method was used for measuring the Hall effect : Specific resistivity, Hall coefficient, Hall mobility and carrier concentration of 350℃ annealed CdS thin films in the air for 120min, were found to be 3.12 X 10^5Ω㎝ 1.56 X 10^4㎤/coul, 5㎠/volt.sec, 4.7 X 10^14/㎤, respectively.

보고 싶은 것이 아닌, 보이는 것을 봐야 한다

박종하 대한지방행정공제회 2012 地方行政 Vol.61 No.709

A Study on the Discretion of Juvenile Waiver in the US and its Implications

박종하 원광대학교 경찰학연구소 2015 경찰학논총 Vol.10 No.3

Discretion has proven to be a substantial component of the criminal justice system. Therefore, there is a general understanding that discretion cannot be prevented. Consequently, discretion should be monitored as to allow for the best benefit to society, especially within the area of juvenile waiver into the adult criminal justice system. This study will be to examine how the U.S. system applies discretion in juvenile cases and how that can be applied to a South Korean context. With the use of prior literature research concerning juvenile waiver, this study aims to examine the current juvenile waiver system in the United States through the discussion of early intentions of juvenile waiver, current types presented in the U.S., and influencing factors that increase the likelihood of transfer. Upon review, future suggestions for improvement will be determined with a rehabilitative approach. First, solid data collection is integral in the understanding and prevention of discretionary abuse. Most importantly, clear and consistent sampling procedures are needed. Second, a functional application of discretion should be established, integrating the findings from various disciplines to reduce errors. Then this knowledge should be circulated for the criminal justice practitioners. Third, prior stagnant or detrimental statutes or policies should be re-visited and revised based on a new understanding of data. Fourth, more discretion should be established through the implementation of reverse waiver provisions, serving to minimize error and ensure that offender's rights are maintained during sanctioning. As improvements are made, a secondary objective of this study will be to implement these paradigms into a South Korean context, where discretion currently falls into the hands of judges and prosecutors, primarily. Utilization in such a society will ultimately increase the level of functional discretion. Implications are discussed.

Vapor-phase hydrogenolysis of glycerol over Mn-promoted Cu catalyst

박종하,서영웅,정천우,김성민,김윤하,이미은 한국공업화학회 2013 한국공업화학회 연구논문 초록집 Vol.2013 No.-

Vapor-phase hydrogenolysis of glycerol over Mn-promoted Cu-Cr oxide catalyst

박종하,서영웅 한국공업화학회 2013 한국공업화학회 연구논문 초록집 Vol.2013 No.1