고품질 중소과 생산을 위한 ‘한아름’ 배의 과실 품질 및 수확 기준

박요섭,권용희 (사) 한국생물환경조절학회 2014 생물환경조절학회지 Vol.23 No.2

‘Hanareum’ pear is expected to produce the high quality small and medium-sized fruits without any majorchanges in the current cultivation techniques, inasmuch as its basic characteristics are already included in the rangeof small and medium-sized fruits. Thus, we tested the possibility of utilization of ‘Hanareum’ pear for producingsmall and medium-sized fruits, while establishing the limit of minimum fruit weight for the fruits in high quality. With the results of correlation analysis, it was possible to predict the fruit weight through the observation of solublesolid contents and flesh firmness, because both factors were closely correlated to fruit weight in all treatments. Moreover,these factors were confirmed to be useful indicators of forecasting consumer preference in the sensory evaluation. The fruit marketability was excellent under the conditions that were greater than 11.6oBx and less than 25.6 Nfor soluble solid contents and flesh firmness, respectively. When applying these standards of fruit quality to theresults of regression analysis for fruit weight, non-treated fruits fulfilled both standards when the fruit weight washigher than 436 g, and the quality uniformity was also high on this state. Therefore, the production of high qualitysmall and medium-sized fruits was determined to be under this condition. The weight limit for GA treated fruits was620 g, and both fruit quality and uniformity were below the weight range of small and medium-sized fruits, with300~500 g. Thus, GA treatment was suggested to be avoided, in order to produce the high quality small andmedium-sized fruits. ‘한아름’ 배는 기본적인 품종 특성이 중소과 범주에포함되는 품종으로 재배기술의 큰 변화 없이도 고품질의중소과 생산이 가능할 것으로 예상되는 품종이다. 따라서, 본 연구에서는 ‘한아름’ 품종을 대상으로 중소과로의활용 가능성을 알아보고, GA 처리와 비교하여 고품질의중소과 생산이 가능한 최저 과중 기준 설정하고자 하였다. 과실 품질인자간 상관분석 결과, 무처리구와 GA 처리구에서 공통적으로 과중과 당도, 과중과 경도가 높은상관관계가 있어 각 처리구의 당도와 경도의 관찰을 통한 과중의 예상이 가능하였다. 또한, 당도와 경도는 소비자 선호도를 예측하는데 유용한 지표로 확인되었으며,당도가 11.6oBx 이상, 경도가 25.6N 이하의 과실이 상품성이 높은 것으로 조사되었다. 관능평가를 통해 도출된품질 기준을 각각 과중과의 회귀분석 결과에 적용한 결과, 무처리구는 과중 436g 이상의 과실이 당도와 경도의품질 기준을 충족하였으며, 품질 균일도 또한 높아 436g이상의 과실을 수확하면 고품질의 중소과 생산이 가능할것으로 판단되었다. GA 처리구에서 당도와 경도의 품질기준을 모두 충족시키는 최소 과중은 620g으로, 중소과범위에서는 품질이 낮고 불균일하여 고품질의 중소과 생산을 목적으로 재배할 경우, GA 처리는 지양해야 할 것으로 판단되었다.

Development of a model to estimate the chilling requirement of oriental pear by standardizing dormancy depth

박요섭,박희승 한국원예학회 2020 Horticulture, Environment, and Biotechnology Vol.61 No.1

The objective of this study was to develop a model to estimate the chilling requirements of 10 oriental pear cultivars by standardizing dormancy depth. The dormancy depth of these cultivars was standardized to a range of 0–100 by setting the lowest bud burst rate during endodormancy as 0 and the bud burst rate immediately after the completion of endodormancy as 100. The endodormancy period was divided into periods. Stage I represented continuously increasing dormancy depth until the deepest dormancy was reached. Stage II represented the period of decreasing dormancy depth following the deepest dormancy; this stage included the breaking of dormancy. In addition, the 10 studied cultivars were classified into three types according to their dormancy depth changing pattern: stage I drop type, stage II leap-up type, and stage I·II symmetric type. A chilling accumulation model was derived based on both the endodormancy period and the dormancy depth of each cultivar. The results showed that − 1.9 to 12.0 °C was an effective range for chilling accumulation and that 2.1–4.0 °C was the most effective range for chilling accumulation. The results also revealed that negative accumulation, the reverse reaction of chilling accumulation, occurred under high-temperature conditions (above 14 °C). The results of the model verification process confirmed that the high-temperature conditions (above 14 °C) exhibited negative accumulation values due to an inverse relationship with dormancy depth during endodormancy stage I and that the chilling accumulation for the actual dormancy break mostly occurred during endodormancy stage II.

자발 호흡을 하는 성인 쇼크환자에서 수액 반응성 예측을 위한 혈량 진폭 변이량의 유용성

박요섭,김인병,고재욱,정상원,문동석 대한응급의학회 2009 대한응급의학회지 Vol.20 No.4

Purpose: It is difficult to predict volume responsiveness in hemodynamically unstable patients with spontaneous breathing activity. Our objective was to test whether the respiratory variations in pulse oximetry plethysmography (POP) waveform amplitude could predict fluid responsiveness to fluid resuscitation (FR) in spontaneously breathing adult shock patients. Methods: We investigated 21 patients presenting with shock in the Emergency Room. We assessed hemodynamic status and calculated the respiratory variations in POP waveform amplitude before and after FR. Heart rate, blood pressures (MAP, SBP), maximal POP (POPmax), minimal POP (POPmin) and ⊿POP, defined as ⊿POP = (POPmax - POPmin) / ([POPmax + POPmin] / 2) were recorded. We measured hemodynamic parameters by doppler ultrasound, USCOMⓇ . Results: Comparisons of hemodynamic parameters between before and after FR showed no significant difference in heart rate, but POP showed significant differences in changes in SBP, MAP, cardiac index, stroke volume index and respiratory variations. In response group(≥15% in ⊿CI), the change in cardiac index, stroke volume index, and the respiratory variation in the POP were not significantly different. Conclusion: In spontaneously breathing patients with shock, we suggest that ⊿POP is not a reliable parameter in the prediction of fluid responsiveness.

다중빔 음향 탐사시스템(300 kHz)의 후방산란 자료를 이용한 해저면 퇴적상 분류에 관한 연구

박요섭,이신제,서원진,공기수,한혁수,박수철,Park, Yo-Sup,Lee, Sin-Je,Seo, Won-Jin,Gong, Gee-Soo,Han, Hyuk-Soo,Park, Soo-Chul 대한자원환경지질학회 2008 자원환경지질 Vol.41 No.6

다중빔 음향 탐사 시스템의 후방산란 자료를 대상으로 한 해저면 분류의 가능성을 평가하기 위하여, KONGSBERG SIMRAD EM3000(300kHz) 후방산란 신호를 분석하고 처리하는 소프트웨어를 구현하였다. 강원도 속초항 부근에서 취득한 음압 자료를 이용하여 모자익 영상을 제작하였다. 원격 분류 결과의 검증을 위해 영상 내에서 이질적인 음압 강도로 나타나는 지역에 대하여 잠수사에 의한 직접적인 표층 퇴적물 채취와 비디오 광학 영상을 취득한 후, 후방산란 음압과의 비교를 실시하였다. 연구 대상 지역의 수심은 5m에서 22.7m까지였으며, 모자이크 영상 내의 후방산란 강도 분포는 -15dB에서 -36dB까지 나타났다. 그리고 표층퇴적물 입도 분석 결과, 평균 입도 크기는 최대 $2.86{\phi}$에서 최대 $0.88{\phi}$까지 나타났다. 시료의 입도 분석 자료와 영상의 강도 변화 사이의 상관성을 비교해 본 결과, R값은 0.56으로 나왔다. 입도 분석 자료와 후방산란 음압 자료와의 상관성을 기반으로 구현한 해저면 자동분류 시스템의 인식정도를 정량화하기 위하여, GIS시스템으로 각 대상 자료를 통합하고, 면적비교 기능을 사용하여 평가를 수행하였다. 암반 지역을 사질지역으로, 사질 지역을 암반지역으로 교차 인식하는 오인식율은 약 8.95%로, 평균 입도가 낮은 지역의 인식 면적 차이는 사용자 분류를 기준으로 약 2.06%로 나타났다. 이러한 결과는 평균 입도 변화가 해저면 후방산란에 가장 큰 영향을 미치는 요인임을 지시하고 있다. 따라서 이러한 후방산란 음압을 평가하여 평균 입도 변화를 추적하는 알고리즘을 구현할 수 있었으며, 최종 모자이크 영상을 두 개의 퇴적체로 자동 분류하는 시스템을 구현하게 되었다. In order to experiment the acoustic remote classification of seabed sediment, we achieved ground-truth data(i.e. video and grab samples, etc.) and developed post-processing for automatic classification procedure on the basis of 300 kHz MultiBeam Echo Sounder(MBES) backscattering data, which was acquired using KONGBERG Simrad EM3000 at Sock-Cho Port, East Sea of South Korea. Sonar signal and its classification performance were identified with geo-referenced video imagery with the aid of GIS (Geographic Information System). The depth range of research site was from 5 m to 22.7 m, and the backscattering amplitude showed from -36dB to -15dB. The mean grain sizes of sediment from equi-distanced sampling site(50 m interval) varied from 2.86$(\phi)$ to 0.88(\phi). To acquire the main feature for the seabed classification from backscattering amplitude of MBES, we evaluated the correlation factors between the backscattering amplitude and properties of sediment samples. The performance of seabed remote classification proposed was evaluated with comparing the correlation of human expert segmentation to automatic algorithm results. The cross-model perception error ratio on automatic classification algorithm shows 8.95% at rocky bottoms, and 2.06% at the area representing low mean grain size.

Preparation and Characterization of Electrospun Multi-layered Polyimide Nanoweb with Enhanced Mechanical Properties

박요섭,지민호,백두현 한국섬유공학회 2022 Fibers and polymers Vol.23 No.2

In this study, we report a multi-layered PI nanoweb composed of a uniaxially aligned PI nanoweb and a randomlyoriented PI nanoweb prepared by a general electrospinning method, and their physical and electrochemical propertiesrequired for use as a battery separator are investigated systematically. Morphological analysis showed clearly that a multilayeredstructure is well formed within the PI nanoweb. The tensile strength and modulus of the multi-layered PI nanowebincreased by about 120 % and 359 %, respectively, compared to the randomly oriented PI nanoweb. Also, it was confirmedthat the pore characteristics of the multi-layered PI nanoweb were not significantly changed compared to the randomlyoriented PI nanoweb which can be considered to be prepared by general electrospinning method, despite the insertion of theintermediate reinforcing layer uniaxially aligned in the machine and cross directions. Finally, the electrochemical propertiesof the multi-layered PI nanoweb using a coin cell showed similar results on charge-discharge cycling compared to Celgard2400 membrane. As a result, we believe that the multi-layered PI nanoweb proposed in this study has sufficient potential forapplications to lithium-ion batteries membranes, as well as other industrial fields, based on excellent heat resistanceoriginated from the rigid PI molecule and improved mechanical properties by effective reinforcing layers within the PInanoweb.

우리 교회 명교사를 소개합니다 보광중앙교회 고등부 선생님들

박요섭 장로회신학대학교 기독교교육연구원 2014 교육교회 Vol.432 No.-

Seabeam2000 ( Multi-Beam Echo Sounder ) 의 Beam 특성 및 해저면 후방산란영상처리 ( Beam Characteristics of SeaBeam2000 ( Multi-Beam Echo Sounder ) and Backscattered Seafloor-Image Enhancement )

박요섭,김학일,이용국,석봉출,심태보 대한전자공학회 1995 대한전자공학회 학술대회 Vol.1995 No.1

제과점 최고의 여름상품 빙수

박요섭,Park, Yo-Seop 대한제과협회 1994 베이커리 Vol.7 No.-

일부 농촌지역 주민의 불안과 혈중 콜레스테롤의 관련성

박요섭,박경수,나백주,남해성,신준호,손석준,최진수,김병우,Park, Yo-Seop,Park, Kyeong-Soo,Na, Baeg-Ju,Nam, Hae-Sung,Shin, Jun-Ho,Shon, Seok-Joon,Choi, Jin-Su,Kim, Byong-Woo 대한예방의학회 1997 Journal of Preventive Medicine and Public Health Vol.30 No.3

In other to study relationship of anxiety and serum cholesterol in general population, we performed the interview survey and screening test for the Ju-am cohort and residents in controlling area at 1995. Among them, 622 people are selected for this analysis. The results were summarized as follows. 1. Anxiety and total serum cholesterol related each other in the group of anxiety. Correlation coefficient was 0.39(p<0.01). 2. According to the result of multiple regression that the total serum cholesterol regarded as the dependent variable, anxiety and total serum cholesterol were related each other positively in the group of anxiety(p<0.05). 3. As the symptoms of anxiety was dichotomized affective and somatic symptom. There was no relationship of 2 symptoms and total serum cholesterol in all subjects, but there was more relationship on the affective symptom than on the somatic symptom in the group of anxiety(p<0.05). The above results show that anxiety and total serum cholesterol related each other significantly in the anxiety group. And the relationship of psychological factors and serum cholesterol could be applied significantly in general population as well as in the special group.

영상처리기법을 이용한 해저수치자료의 후처리시스템 개발 ( Development of a Hydrographic Information Post-Processing System Using Digital Image Processing )

박요섭,김학일,박성익,이용국,석봉출 대한전자공학회 1994 대한전자공학회 학술대회 Vol.1994 No.1