연중 매초급여(埋草給與)와 볏짚 및 건초혼합 급여가 우유생산에 미치는 영향

김준식,고문석,김길수,오대균 한국낙농학회 1983 韓國酪農學會誌 Vol.5 No.1

The effect of cornsilage and ricestraw, cornsilage and hay, cornsilage on milk yield, milk fat, live weight and economic analysis were studied by ad libitum experimental design. Four difference treatments were tested with the following experimental rouhage per day in forage basis: corn silage + rice-straw (25㎏ + 5㎏), corn silage + hay (25㎏ + 3㎏), corn silage + hay (20㎏ + 2㎏), corn silage (30㎏). Thereon, concentrate was fed according to milk production during the experimental period. The results obtained are as follows: 1. Dry matter intake per day during the experimental period among four treatments showed little difference. 2. The animal in treatment T2 tended to give higher milk yield than those in treatment C. T1, T3, but the difference was not significant statistically. 3. The cows in treatment T3 gave milk of higher fat content than those in treatment C, T1 or T2, but the difference was not significant statistically. 4. Treatment T1 gave the most increase in body weight following by treatment T2, C, and Treatment T3 gave the least increase in body weight during the experimental period but the difference was not signifficant. 5. Treatment T1 gave the most income in economic analysis followed by treatment T1, T3, and treatment C gave the least income in economic analysis during the experimental period.

B-Type Natriuretic Peptide Assay for the Diagnosis and Prognosis of Patent Ductus Arteriosus in Preterm Infants

김준식,심은정 대한심장학회 2012 Korean Circulation Journal Vol.42 No.3

Background and Objectives: Patent ductus arteriosus (PDA) is a significant cause of morbidity and mortality in preterm infants. Measurement of plasma B-type natriuretic peptide (BNP) has been reported to be a useful bedside screening tool for the presence of hemodynamically significant PDA (hsPDA) in neonates. This study was conducted to investigate the usefulness of a BNP assay as a biochemical marker for the diagnosis of hsPDA and predictive biomarker of the response to indomethacin in preterm infants. Subjects and Methods: Preterm infants born at <37 weeks’ gestational age were prospectively enrolled within 24 hours of birth. Plasma BNP levels were measured on days 1, 4, and 7. Significant PDA was diagnosed by large ductal flow with left to right shunt on color Doppler echocardiography, along with clinical features of PDA. Following that, hsPDA was treated with indomethacin. Results: A total of 28 preterm infants were prospectively enrolled in this study. Seven infants with PDA had higher on day 4 plasma BNP values (median 654.68 pg/mL; range 428.29-1280.00) compared to the control group (median 124.52 pg/mL; range 37.21-290.49). The area under the receiver operator characteristic curve for the detection of hsPDA was high: 0.998 (95% confidence interval: 0.995-1.002). The cutoff of BNP concentration for the diagnosis of hsPDA was determined to be 412 pg/mL (sensitivity: 100%; specificity: 95%). Conclusion: B-type natriuretic peptide can be a useful biomarker for the screening and diagnosis of PDA in preterm infants. Serial BNP measurements are valuable for assessing the clinical course and indomethacin responsiveness of PDA.

시체 해부를 통해 측정한 코중격 연골의 크기

김준식,김남균,장팔영,최태현,이경석 대한미용성형외과학회 2006 Archives of Aesthetic Plastic Surgery Vol.12 No.1

Although augmentation rhinoplasty with silicone implant was once the mainstream technique, more complex rhinoplasty procedures that focus on reshaping the nasal tip and columella are required to meet the customers' demands. After columellar control strut or septal extension graft have been introduced for the correction of the nasal tip and columella, the results of augmentation rhinoplasties were very good. But, the problem is the dimension of the septal cartilage which is used for the graft material. So, we dissected a total of 10 cadavers. The anterior- posterior dimension and the cephalic-caudal dimension of the septal cartilage were measured as if it were a rectangular shape. With using a 10mm L-shaped strut, a septal cartilage was measured, too. As the results, we found that the anterior-posterior dimension of the septal cartilage was 22.1mm on average, and the cephalic-caudal dimension was 28.0mm on average. The average size of the septal cartilage was 627.2mm2. With using a 10mm L-shaped strut, the possible size of the graft was 226.2mm2 with an average anterior-posterior dimension of 12.1mm and an average cephalic-caudal dimension of 18.0mm. This report will be beneficial when the surgeon performs the various rhinoplasty techniques using the septal cartilage.

Robust source analysis of oscillatory motor cortex activity with inherently variable phase delay

김준식,정천기 Academic Press 2007 NEUROIMAGE Vol.37 No.2

RTK-GPS에 의한 지적측량성과 검증

김준식,권재현,차득기 한국국토정보공사 2008 지적과 국토정보 Vol.38 No.1

The purpose of this study is to verify the quality of RTK surveying results by NMEA data obtained by RTK-GPS and to develop a method in order to enhance the reliability of cadastral surveying so that it could be applied to field surveying. For this, the module which can verify the quality of RTK-GPS surveying results in the field was developed. In the testing module, $GPLLQ data suppling location information can be identified during surveying operation through the PDA screen and RTK-GPS data could be received with the permitting the accuracy and the number already set, calculating standard declination and storing average measurements as decisive coordinates. In order to evaluate the efficiency of the verification module, the results of pilot surveying by TS surveying were compared and analysed. As a result, it is illustrated that the quality verification module of RTK-GPS surveying results could be applied to cadastral surveying very usefully. 본 연구에서는 RTK-GPS측량의 NMEA데이터를 이용하여 RTK측량성과의 품질을 검증하고 지적측량의 신뢰성을 확보하기위한 기법을 개발하여 실무에 적용시키는 것이 연구의 목적이다. 이를 위해 PDA를 사용하여 RTK-GPS측량성과의 품질을 현장에서 검증할 수 있는 모듈을 개발하였다. 검증 모듈은 지역위치와 정확도 정보를 제공하는 Leica GPS의 고유 포맷인 $GPLLQ데이터 정보를 현장 측량수행 중 PDA화면에서 확인할 수 있고, 설정된 정확도이내의 데이터를 연속적으로 설정된 개수만큼 수신하여 표준편차를 산출하고 계산에 사용된 좌표의 평균값을 결정좌표로 저장한다. 검증모듈의 효율성을 평가하기 위해 토탈스테이션(TS:Total Station)측량 등을 이용하여 실험측량을 수행하고 결과를 비교분석하였다. 실험결과 RTK-GPS 측량성과 품질 검증 모듈은 지적측량의 실무에 유용하게 적용할 수 있을 것으로 판단되었다.

원발성 장림프관 확장증 1예

김준식,박근수,곽진영,권태찬,조윤정 대한소화기내시경학회 1999 Clinical Endoscopy Vol.19 No.4

We described a 22-month-old girl, who suffered from a gereralized edema and intermittent diarrhea for 1 month. Intestinal lymphangiectasia was confirmed by endoscopic biopsy. Endoscopic examination revealed showed the characteristic appearance of tiny white flakes scattered in the duodenum, which a histological examination confirmed to be dilated lymph vessels. The other findings from laboratory examinations included lymphopenia, hypoproteinemia, hypogammaglobulinemia and increased fecal al-antitrypsin clearance. Treatment consisting of a low-fat diet and MCT supplementation was successful. The therapy has resulted in the disappearance of duodenal lesions previously observed endoscopically.

Excessive crying: behavioral and emotional regulation disorder in infancy

김준식 대한소아청소년과학회 2011 Clinical and Experimental Pediatrics (CEP) Vol.54 No.6

In the pediatric literature, excessive crying has been reported solely in association with 3-month colic and is described, if at all, as unexplained crying and fussing during the first 3 months of life. The bouts of crying are generally thought to be triggered by abdominal colic (over-inflation of the still immature gastrointestinal tract), and treatment is prescribed accordingly. According to this line of reasoning,excessive crying is harmless and resolves by the end of the third month without long-term consequences. However, there is evidence that it may cause tremendous distress in the mother–infant relationship, and can lead to disorders of behavioral and emotional regulation at the toddler stage (such as sleep and feeding disorders, chronic fussiness,excessive clinginess, and temper tantrums). Early treatment of excessive crying focuses on parent–infant communication, and parent-infant interaction in the context of soothing and settling the infant to sleep is a promising approach that may prevent later behavioral and emotional disorders in infancy.

족관절 및 족부외상환자에서 Ottawa Ankle Rule의 유용성에 관한 연구

김준식,전영진,한승백,신동운,김아진 대한외상학회 1999 大韓外傷學會誌 Vol.12 No.2

Background: This study was conducted to evaluate the efficacy of the Ottawa ankle rule in ankle and/or mid-foot injured patients. Methods : From June 1998 to May 1999, we used the Ottawa ankle rule to analyze prospectively the patients who suffered ankle and/or mid-foot injury. The exclusion criteria were less than 18 years old, open fractures, multiple organ injuries, unstable vital signs, and pregnant women. Also we evaluated the patients according to the British Columbia Council on Clinical Results: The total number of patients was 153. A total of 198 radiographs (ankle: 152; foot : 46) were taken in these153 patients. There were 33 ankle fractures and 9 mid-foot fractures. Only 21.7% of the ankle films showed fractures and 19.6% of the foot films showed fractures. therefore, the sensitivity and the specificity of the Ottawa ankle rule were 87.9% and 4.2% for ankle fractures and 77.8% and 13.6% for midfoot fractures. In our study, 4 ankle fractures and 2 mid-foot fractures were missed clinically. Conclusion: The Ottawa ankle rule is an effective diagnostic method for ankle and/or mid-foot injury patients. Application of the Ottawa ankle rule reduces the waiting time in the emergency department, avoids inappropriate X-Ray exposure, improves theaccuracy of the clinical exmination, and reduces medical costs due to unnecessary X-Rays of the ankle and/or mid-foot.

원자력발전소의 근골격계 질환 평가체계 구축을 위한 기초연구

김준식,이용희 대한인간공학회 2008 대한인간공학회 학술대회논문집 Vol.- No.-

원자력발전소(이하 원전)는 방사능 안전을 우선한 결과 근골격계 질환이 상대적으로 소홀하게 관리되고 있다. 하지만 원전은 다수의 수작업을 포함하는 대규모 생산시설이기 때문에, 근골격계 질환 발생의 가능성은 무시할 수 없다. 다만 원전의 직무 특성이 일반산업과 상이한 고려사항이 있고 발전소가 가지는 특수성을 감안한 평가 방안이 확보되지 않아 그동안 평가가 미흡했을 뿐이다. 본 연구에서는 원전의 직무특성을 파악하여 기존의 부담작업 기준을 수정하거나 항목을 추가하는 등 새로운 부담작업 기준(안)을 제안하였으며, 이를 토대로 발전소의 특성을 고려한 근골격계 질환 위험성의 체계적인 관리 방안을 모색하였다.

적층평판의 응력해석 향상을 위한 고전적 고차전단변형이론의 개선

김준식,한 장우,조맹효,Kim, Jun-Sik,Han, Jang-Woo,Cho, Maeng-Hyo 한국전산구조공학회 2011 한국전산구조공학회논문집 Vol.24 No.3

본 논문에서는 고전적 고차전단변형이론(HSDT)을 이용한 복합재료 적층평판의 응력해석 개선기법을 소개한다. 횡방향 응력들에 대해서만 변분을 취하는 혼합변분이론(Mixed variational theorem)을 통하여 횡방향 전단 변형에너지를 개선하였다. 가정된 횡방향 전단응력은 면내 변위가 5차 다항식을 갖는 고차 지그재그 이론으로부터 구하였으며, 변위들은 고전적 고차전단변형이론의 변위장을 사용하였다. 이 과정을 통하여 얻어진 변형 에너지를 본 논문에서는 EHSDTM라고 명명하였으며, 이 이론을 통해 복합재 적층평판의 변위와 응력을 계산함에 있어서 HSDT와 비슷한 수준의 계산적 효율을 가지면서, 동시에 최소자승오차법에 따른 후처리 과정을 적용함으로써 변위와 응력의 두께방향 분포를 정확하게 예측할 수 있도록 개선하였다. 계산된 결과는 고전적 HSDT, 3차원 탄성해 등의 여러 결과들과 비교하여 검증하였다. In this paper, an systematic approach is presented, in which the mixed variational theorem is employed to incorporate independent transverse shear stresses into a classical higher-order shear deformation theory(HSDT). The HSDT displacement field is taken to amplify the benefits of using a classical shear deformation theory such as simple and straightforward calculation and numerical efficiency. Those independent transverse shear stresses are taken from the fifth-order polynomial-based zig-zag theory where the fourth-order transverse shear strains can be obtained. The classical displacement field and independent transverse shear stresses are systematically blended via the mixed variational theorem. Resulting strain energy expressions are named as an enhanced higher-order shear deformation theory via mixed variational theorem(EHSDTM). The EHSDTM possess the same computational advantage as the classical HSDT while allowing for improved through-the-thickness stress and displacement variations via the post-processing procedure. Displacement and stress distributions obtained herein are compared to those of the classical HSDT, three-dimensional elasticity, and available data in literature.