한우의 자궁 내 분리 세균에 대한 천연물질 항균효과

박보경,김기주,조영재,박소연,이재훈,정배동,권용수,박정준,한태욱,Park, Bokyoung,Kim, Kiju,Cho, Youngjae,Park, Soyeon,Lee, Jaehun,Jung, Bae-Dong,Kwon, Yong-Soo,Park, Joung-Jun,Hahn, Tae-Wook 대한수의학회 2014 大韓獸醫學會誌 Vol.54 No.3

Bacterial infection of the uterus in Hanwoo can kill embryos. Therefore, many antibiotics have been used to treat this infection in the uterus of repeat breeders. Incorrect use of antibiotics has led to resistance in bacteria. Natural compounds have used as substitutes for antibiotics because they are safe and have very mild side effects. This study was conducted to examine the antimicrobial effects of five extracts from medicinal plants including Humulus japonicas (Hj), Phelledendron amurense (Pa), Viola mandshurica (Vm), Carthamus tinctorius (Ct), and Chelidoni herba (Ch) on bacteria isolated from the uterus of Hanwoo using the paper disc diffusion method. Hj and Pa extracts had potent antimicrobial effects against Staphylococcus lentus, Streptococcus infantarius subsp. coli, and Bacillus pumilus. Pa had the greatest antimicrobial effect among the five medicinal plants and was effective against 19 types of bacteria from bovine uterus. Compared to Pa, Hj showed weaker antimicrobial effects on all the bacteria tested except Pseudomonas aeruginosa. Vm, Ct, and Ch also showed weak antimicrobial effects on the tested bacteria. The results obtained suggest that Hj and Pa are natural compounds suitable for treating bacterial infection in repeat breeders and improving conception rates of Hanwoo.

초임계상 이산화탄소 주입으로 인한 공극수 대체에 관한 공극 규모의 마이크로모델 연구

박보경,이민희,왕수균,Park, Bogyeong,Lee, Minhee,Wang, Sookyun 한국지하수토양환경학회 2016 지하수토양환경 Vol.21 No.3

A micromodel was applied to estimate the effects of geological conditions and injection methods on displacement of resident porewater by injecting scCO₂ in the pore scale. Binary images from image analysis were used to distinguish scCO₂-filled-pores from other pore structure. CO₂ flooding followed by porewater displacement, fingering migration, preferential flow and bypassing were observed during scCO₂ injection experiments. Effects of pressure, temperature, salinity, flow rate, and injection methods on storage efficiency in micromodels were represented and examined in terms of areal displacement efficiency. The measurements revealed that the areal displacement efficiency at equilibrium decreases as the salinity increases, whereas it increases as the pressure and temperature increases. It may result from that the overburden pressure and porewater salinity can affect the CO₂ solubility in water and the hydrophilicity of silica surfaces, while the neighboring temperature has a significant effect on viscosity of scCO₂. Increased flow rate could create more preferential flow paths and decrease the areal displacement efficiency. Compared to the continuous injection of scCO₂, the pulse-type injection reduced the probability for occurrence of fingering, subsequently preferential flow paths, and recorded higher areal displacement efficiency. More detailed explanation may need further studies based on closer experimental observations.

공극 규모에서의 초임계상 이산화탄소 거동 가시화를 위한 마이크로모델의 개발과 적용

박보경,이민희,왕수균,Park, Bogyeong,Lee, Minhee,Wang, Sookyun 한국지하수토양환경학회 2015 지하수토양환경 Vol.20 No.4

Despite significant effects on macroscopic migration and distribution of CO₂ injected during geological sequestration, only limited information is available on wettability in microscopic scCO₂-brine-mineral systems due to difficulties in pore-scale observation. In this study, a micromodel had been developed to improve our understanding of how scCO₂ flooding and residual characteristics of porewater are affected by the wettability in scCO₂-water-glass bead systems. The micromodel (a transparent pore structure made of glass beads and glass plates) in a pressurized chamber provided the opportunity to visualize scCO₂ spreading and porewater displacement. CO₂ flooding followed by fingering migration and dewatering followed by formation of residual water were observed through an imaging system. Measurement of contact angles of residual porewater in micromodels were conducted to estimate wettability in a scCO₂-water-glass bead system. The measurement revealed that the brine-3M NaCl solution-is a wetting fluid and the surface of glass beads is water-wet. It is also found that the contact angle at equilibrium decreases as the pressure decreases, whereas it increases as the salinity increases. Such changes in wettability may significantly affect the patterns of scCO₂ migration and porewater residence during the process of CO₂ injection into a saline aquifer at high pressures.

열처리가 강연사 제직 실크 직물의 기계적 성질에 주는 영향

박보경,엄인철,Park, Bo Kyung,Um, In Chul 한국섬유공학회 2017 한국섬유공학회지 Vol.54 No.4

Silk textile has been used for a long time owing to its soft texture and luster. However, its limited elasticity has restricted its textile application causing end users to demand silk textile with improved features such as good extensibility and elasticity. In this study, the silk textile was prepared with high twist silk yarn and subjected to heat treatments to augment its elasticity. The effect of heat treatment on the morphology and mechanical properties of silk textile was examined. As the water temperature and drying temperature increased, the shrinkage ratio of silk textile increased causing the weft silk yarn to become tangled. Further, the breaking strength of silk textile decreased and its elongation increased significantly. Most silk textiles, except the ones immersed in water and dried at $25^{\circ}C$, showed an elastic recovery of 100%. However, the results of tough repetitive extension tests (at 150% elongation condition) showed a small permanent extension of silk textile at the end of the first extension cycle.

언어학 및 의미적 문맥 분석을 통한 효율적인 요구사항 분석 방법

박보경,이근상,김영철,Park, Bo-Kyung,Yi, Geun-Sang,Kim, R. Young-Chul 한국인터넷방송통신학회 2017 한국인터넷방송통신학회 논문지 Vol.17 No.6

For high quality of software, it should be necessary for defining and analyzing the exact requirements at the early stage of software development. But readability and understandability of most natural language requirements are inaccurate and difficult for identifying use cases. The requirements are duplicated for objects or temrs with the same meaning. To solve this problem, it should need an effective way of requirement analysis based on linguistic and semantic textual analysis. In this paper, we propose to improve a semantic analysis method adopted with a linguist Fillmore's linguistic mechanism. This method may expect to analyze easily readable and exactly understandable requirements specifications through modeling the goal oriented use cases with natural language based requirements. 고품질의 소프트웨어를 개발하기 위해서는 개발 초기단계에 정확한 요구사항 정의 및 분석이 필요하다. 그러나 대부분의 자연어 기반의 요구사항 문장 표현은 부정확성과 이해도 어려운 실정이다. 또한 요구사항은 같은 의미를 가진 객체나 용어들이 중복 식별된다. 이를 해결하기 위해 고객 요구사항을 언어학적 및 의미적 문맥 분석을 통한 효율적인 요구사항 분석 방법이 필요하다. 본 논문에서는 요구공학 언어학자인 Fillmore의 의미론적 분석 방법을 요구공학에 접목하고, 의미론적 분석 개선 방안을 제안한다. 이 방법은 자연어 기반의 요구사항을 Goal Oriented Use Case Modeling 통해 쉽게 읽고 이해 가능한 요구 사항 분석이 기대된다.

이달의 추천 하루 당뇨식단 - 1800kcal 임신성 당뇨식단

박보경,Park, Bo-Gyeong 사단법인 한국당뇨협회 2009 당뇨 Vol.241 No.-

부모의 양육행동과 아동의 행복감이 미디어기기 중독에 미치는 영향

박보경(Bokyung Park),노지운(Jee Un Noh) 한국아동학회 2019 아동학회지 Vol.40 No.3

Objectives: This study examined the effects of parenting behaviors and children’s happiness on children’s media device addiction. Methods: The data were drawn from the tenth wave of the Panel Study on Korean Children. A total of 1,263 children and their parents answered questionnaires on the research variables. Data were analyzed using structural equation modeling. Results: First, maternal parenting behaviors had a direct effect on children’s media device addiction, that is, children whose mothers displayed more positive parenting behaviors showed less media device addiction. Second, maternal parenting behaviors had an indirect effect on children’s media device addiction through happiness. In other words, when mothers exhibited more positive parenting behaviors, their children tended to be happier, which, in turn, led to less media device addiction. However, paternal parenting behaviors did not have any direct or indirect effects on children’s media device addiction. Conclusion: This study confirmed that positive maternal parenting behaviors and children’s happiness are protective factors for children’s media device addiction. In addition, these findings contribute to a better understanding of the mechanisms linking parenting behaviors to children’s media device addiction.

어머니의 양육행동과 유아의 스마트폰 과몰입 간의 관계에서 유아의 자기조절능력의 매개적 역할

박보경(Bokyung Park),박남심(Nam-Shim Park) 한국보육지원학회 2018 한국보육지원학회지 Vol.14 No.5

Objective: This study examined the mediating roles of preschoolers self-regulation in the relationship between maternal parenting behaviors and preschoolers excessive immersion in smartphones. Methods: A total of 268 mothers of preschoolers responded to questionnaires on three research variables. Data were analyzed by correlation analyses and regression analyses. Results: First, maternal warmth/encouragement was negatively related to preschoolers excessive immersion in smartphones, while maternal overprotectiveness/ permission and rejection/neglect were positively related to preschoolers excessive immersion in smartphones. Second, maternal warmth/encouragement and limit setting were positively linked to preschoolers self-regulation, but maternal overprotectiveness/permission and rejection/neglect were negatively linked to preschoolers self-regulation. Third, preschoolers self-regulation was negatively associated with their excessive immersion in smartphones. Finally, preschoolers self-regulation fully mediated the relationship between maternal warmth/encouragement and preschoolers excessive immersion in smartphones, and preschoolers self-regulation partially mediated the relationship between maternal overprotectiveness/permission, rejection/neglect and preschoolers excessive immersion in smartphones. Conclusion/Implications: The results of this study suggest that positive maternal parenting behaviors and preschoolers effective self-regulation are important in order to decrease preschoolers smartphone overuse. These findings provide empirical evidence to develop programs for prevention and intervention of preschoolers’ smartphone addiction.

한국적 일터사역의 형성 모색: 로잔운동을 중심으로

박보경(Bo Kyoung Park) 장로회신학대학교 세계선교연구원 2020 선교와 신학 Vol.50 No.-

일터사역(Workplace Ministry)은 로잔운동 안에서 활발하게 전개되는 새로운 선교 전략 패러다임이다. 일터사역에서는 평신도들의 6일간의 주중의 삶이 가장 선교적 존재로 드러나야 하는 시간이며, 일터야말로 불신자들과의 관계 속에서 그리스도인들이 복음을 삶으로 전달하는 현장임을 주장한다. 또한 일터사역은 교회 구성원의 대부분을 차지하는 평신도들이야말로 일상 속에서 예수 그리스도의 복음을 전파하는 하나님의 선교의 대행자임을 강조한다. 또한 일터사역은 왜곡된 이원론을 극복하고, 성직주의가 발생시킨 교회 내에서의 평신도의 열등한 지위를 회복하고 철저한 만인 제사장설을 실천하려고 노력한다. 이 글은 로잔운동 안에서 일어난 일터사역의 한국적 형성을 모색하는 것을 목적으로 한다. 이를 위하여 이 글은 먼저 로잔운동 안에서의 일터사역의 발전과정을 살핀다. 파타야 포럼 이전의 로잔운동이 어떻게 일터사역을 탄생시키게 되었는지, 그리고 이어서 2004년 파타야 포럼의 일터사역의 내용을 살피고, 다음으로는 2010년 로잔 3차대회와 이어지는 대회들에서 일터사역이 어떻게 발전했는지를 살핀다. 다음으로 가장 최근에 진행된 2019년 글로벌 일터사역 포럼을 개괄한다. 마지막으로 한국적 일터사역의 형성을 위한 방안으로는 첫째, 일터사역과 선교적 교회론의 접목, 둘째, 일터사역의 지역교회 생태계에로의 진입, 셋째, 통전적 관점에서의 일의 신학 형성, 넷째, 신학교육 대상의 다변화, 특히 평신도의 신학교육을 제안한다. Workplace ministry first appeared in Pattaya Forum of 2004 and has been the new active mission paradigm initiated by Lausanne Movement. The Workplace ministry emphasizes the significance of evangelizing in workplace by the lay people. Such place is where Lay Christians associates with non-believers and help them in advancing the gospel. Therefore, the workplace ministry encourages Christians in the secular sectors of the society to actively engage in and integrate their faith and work. The current study aims to identify the historical development of the workplace ministry in Lausanne movement, and seek the ways to vitalize the workplace ministry within the Korean churches. The study proceeds as follows; 1) to look into the traces of “workplace ministry” before the Pattaya Forum, 2) to examine how the workplace ministry has been interpreted in the Pattaya Forum, 3) to explain the development of workplace ministry in the following major Lausanne conferences, including Capetown Congress, 4) to overview the global workplace forum on June 2019; and 5) to provide possible ways to apply workplace ministry in Korean churches, as first, integrating workplace ministry with major arguments of missional ecclesiology, second, entering of eco-system of Korean local church, third, formation of holistic workplace theology, and fourth, the diversification of theological education centering on lay people.

[우수논문] 객체지향 코드의 정적 분석을 위한 Tool-chain화 사례 연구

박보경(Bokyung Park),권하은(Haeun Kwon),양효석(Hyeoseok Yang),문소영(Soyoung Moon),김영수(Youngsoo Kim),김영철(R. Youngchul Kim) 한국정보과학회 2014 한국정보과학회 학술발표논문집 Vol.2014 No.6