양계 사료첨가제로서 감태 추출 부산물로 인한 체중증가 및 방어효능 평가

박소연,김정요,박보경,김기주,박근태,한종권,한태욱,Park, Soyeon,Kim, Chung Yoh,Park, Bokyoung,Kim, Kiju,Park, Keuntae,Han, Jong Kwon,Hahn, Tae-Wook 대한수의학회 2016 大韓獸醫學會誌 Vol.56 No.4

The Ecklonia cava Kjellman by-product (ECBP) as a feed additive was evaluated in improvement of productivity and immune enhancement against Salmonella Gallinarum (SG). Lohmann Brown chickens proved SG-free were randomly divided into 3 groups of 8 chickens each. Chickens were fed with the experimental diet treatment: T0, Non treatment-commercial feed; T1, commercial feed with 0.5% ECBP; T2, commercial feed with 0.1% Lactobacillus plantarum. In this study, we evaluated the effect of T1 and T2 groups on the body weight and protective efficacy against SG in chickens. The results demonstrated that treatment of T1 group as a feed additive affected significantly body weight gaining in chickens. In addition, T1 group showed a significant different colonization of SG when compared to T2 and T0 groups. We also studied that serum IgG and $interferon-{\gamma}$ levels were significantly different compared with other treatment groups. Therefore, we suggest that ECBP can be used as a good candidate of feed additives in chicken industry.

전자혀를 이용한 객관적 상대 단맛 측정

박소연,나선영,오창환,Park, So Yeon,Na, Sun Young,Oh, Chang-Hwan 국제문화기술진흥원 2022 The Journal of the Convergence on Culture Technolo Vol.8 No.6

Sugar solutions (5%, 10%, 15% and 20%) were tested by seven sensors of Astree E-Tongue for selecting a sensor for sweetness. NMS sensor was chosen as a sensor for sweetness among two sensors (PKS and NMS sensors selected in first stage) by considering precision, linearity and accuracy. Sugar, fructose, glucose and xylitol (5%, 10% and 15%) were tested by E-tongue. The principal component analysis (PCA) result by E-Tongue with seven sensors at 5% concentration level of four sweetners was not satisfactory (Discrimination index was -0.1). On the other hand, the relative NMS sensor response values were derived as 1.08 (fructose), 0.99 (glucose) and 1.00 (xylitol) comparing to sugar. Only the E-Tongue relative glucose response 0.99 was different from 0.5~0.75 of the relative sweetness range reported as the human sensory test results. Considering the excellent precision (%RSD, 1.53~3.64%) of E-Tongue using NMS single sensor for three types of sweeteners compared to sugar in the concentration range of 5% to 15%, replacing sensory test of sweetened beverages by E-Tongue might be possible for new product development and quality control.

한국의 고대 혜성 기록 분석

박소연,채종철,Park, So-Yeon,Chae, Jong-Chul 한국천문학회 2007 天文學論叢 Vol.22 No.4

We have analyzed the comet records in the Korean history books: Samguksagi, Goryeosa, and Joseonwangjosillok. For a comparison, the Chinese and Japanese comet records collected by Kronk (1999) have also been analyzed. Power spectrum of the time series of the comet records is used to find periodic comets. Statistically significant periodicities in the power spectrum are detected at the periods of 38-40 years, about 76 years, and 300-400 years for all Korean, Chinese, and Japanese comet records. We have also calculated the past orbits of some comets that have been recently observed, to check whether or not they were recorded in the history books. We use a multistep method to numerically integrate the comet's orbital motion backward in time to 51 B.C. The gravitational force due to the Sun and the nine planets, non-gravitational force, and the relativistic effects have been considered. Comparison of comet's perihelion passage time and the position on the sky with the historical records shows that the comet Halley were recorded at every passage in both Goryeo and Joseon periods. The orbital motion of the comet Pons-Brooks has also been compared with the Korean records. For the comet Tempel-Tuttle, Swift-Tuttle, and Ikeya-Zhang, we have compared our calculation of the orbital motions with those of the previous studies.

퍼멀로이 합금도금을 위한 나노실리카 분산방법에 관한 연구

박소연,정명원,이재호,Park, So-Yeon,Jung, Myung-Won,Lee, Jae-Ho 한국마이크로전자및패키징학회 2011 마이크로전자 및 패키징학회지 Vol.18 No.4

복합전기도금은 도금 중 반응성이 없는 물질을 첨가하여 도금층 내부에 함께 존재하도록 함으로써 이루어진다. 퍼멀로이는 철과 니켈의 합금을 말하는 것으로써 마모 특성과 내부식성이 우수하고 복합도금을 함으로써 도금층의 잔류응력 완화와 경도증가, 높은 투자율를 나타내기 때문에 산업 여러 분야에 응용된다. 복합도금을 통해 제품의 미세경도를 향상시킬 수 있으며 이는 제품의 수명과 연관된다. 하지만 실리카 나노분말 표면의 수산화기는 표면을 수분에 취약하게 만들고 이는 나노분말의 응집을 발생시켜 균일한 도금층의 형성을 어렵게 하는 요인이 된다. 본 연구에서는 실리카 나노분말의 zeta potential의 측정과 실리카 나노분말의 응집을 줄이기 위하여 전류밀도의 변화, 첨가제의 변화를 살펴보았다. 표면은 전류밀도 20 $mA/cm^2$에서 가장 효과적이었으며 이 때 실리카의 함량은 $50^{\circ}C$에서 9%로 확인되었다. 첨가제에 따라 표면 형상과 공석되는 실리카 나노입자의 함량 차이가 나타났다. 염기성 도금용액에서 sodium lauryl sulfate를 사용하였을 경우 표면이 매끄럽고 공석되는 실리카 나노분말의 양도 높았다. The composite electroplating is accomplished by adding inert materials during the electroplating. Permalloy is the term for Ni-Fe alloy and it is used for industrial applications due to its high magnetic permeability, surface wear resistance, corrosion protection. Microhardness for microdevices is enhanced after composite coating and it increases the life cycle. However, the hydroxyl group on the silica makes their surface susceptible to moisture and it causes the silica nanoparticles to be agglomerated in the aqueous solution. The agglomeration problem causes poor dispersion which eventually interrupts uniform deposition of silica nanoparticles. In this study, the dispersion of silica nanoparticles in the permalloy electroplated layer is reported with variation of additives and current densities. The optimum current density was 20 $mA/cm^2$ and the silica content was 9 at% at $50^{\circ}C$. The amount of silica nanopowder codeposition and surface morphologies were influenced with variation of additives. In the bath, smooth surface morphology and relatively high contents of silica nanopowder codeposition were obtained with addition of sodium lauryl sulfate.

SPONTANEOUS ERUPTION OF IMPACTED MAXILLARY PRIMARY CANINE AFTER REMOVAL OF ODONTOMA

박소연,김수경,최성철,김광철,박재홍,Park, So-Yeon,Kim, Soo-Kyoung,Choi, Sung-Chul,Kim, Kwang-Chul,Park, Jae-Hong Korean Academy of Pediatric Dentistry 2012 大韓小兒齒科學會誌 Vol.39 No.1

복잡 치아종은 치아와 해부학적인 유사성이 없는 법랑질, 상아질, 백악질의 덩어리로 구성되어 있다. 이 병소의 대부분은 증상이 없어 일상적인 방사선 검사나 치아의 맹출 실패의 원인을 감별하기 위한 검사를 통해 발견된다. 복합 치아종은 골 팽창을 보이는 경우가 드물지만, 복잡 치아종은 경미하거나 뚜렷한 골 팽창을 보인다. 복잡 치아종은 거의 영구치와 연관되어 있고 유치와 연관된 경우는 매우 드물다. 이는 보통 하악의 유구치 부위에 발생한다. 본 증례는 상악 유견치의 매복과 연관된 복잡 치아종을 외과적 방법으로 제거하고 자가맹출을 용이하게 하기 위해 치은 하방에 재위치 시켰다. 수술 6개월 후에 상악 유견치가 자가 맹출되었으므로 이를 보고한다. Complex odontomas consist of a conglomerate mass of enamel, dentin and cementum which bears no anatomic resemblance to a tooth. The majority of these lesions are completely asymptomatic, being discovered on routine radiographic examination or when films are taken to determine the reason for tooth eruption failure. Compound odontomas seldom cause bony expansion, but complex odontomas often cause slight or even marked bony expansion. Complex odontomas are mostly associated with permanent teeth and very rarely associated with deciduous teeth. They are usually located in the first-or second-molar areas of the mandible. This report presents a case of a patient with impaction of a maxillary primary canine by a complex odontoma in which surgical excision of the lesion was performed. And the primary canine was repositioned right under gingival level for spontaneous erution. Follow-up after six months showed spontaneous eruption ofthe repositioned maxillary primarycanine.

네이버와 구글의 모바일 통합 검색 컨텐츠 평가

박소연,Park, So-Yeon 한국도서관정보학회 2011 한국도서관정보학회지 Vol.42 No.4

본 연구에서는 국내 주요 검색 포털들의 전반적인 모바일 통합 검색 현황을 조사하고, 네이버와 구글의 모바일 통합 검색 컨텐츠를 분석, 평가하였다. 즉 이 연구에서는 네이버와 구글을 대상으로 검색 결과에 노출되는 문서 수, 검색 결과 문서들의 컬렉션별 분포, 작성 연도별 분포와 같은 특징을 조사하고, 문서의 적합도, 최신성, 신뢰도 등을 평가하였다. 또한 네이버의 통합웹 베스트와 통합웹, 구글의 베스트 웹문서와 웹문서의 품질을 비교하였으며, 문서의 순위와 문서의 적합도 간의 상관관계를 분석하였다. 본 연구의 결과는 향후 포털의 효과적인 모바일 통합 검색 서비스의 개발에 활용될 수 있을 것으로 기대된다. This study aims to investigate current status of mobile search services of Korean search portals, and analyze mobile unified search contents of Naver and Google Korea. In particular, this study analyzed characteristics of mobile unified search such as number of retrieved documents, collection distribution, and yearly distribution. Also, documents were evaluated in terms of relevance, credibility, and currency. This study compared quality of Naver's unified Web best and unified Web, and Google's best Web documents and Web documents. The correlation between document's ranking and document's relevance was analyzed. The results of this study can be implemented to the portal's effective development of mobile search service.

인삼 지상부를 첨가한 사료 급여가 닭에서 나타내는 효과

박소연,이광열,조영재,박보경,김기주,이나래,김동건,김영희,한태욱,Park, Soyeon,Lee, Kwang-Yeal,Cho, Youngjae,Park, Bokyoung,Kim, Kiju,Lee, Na-Rae,Kim, Dong-Gun,Kim, Young-Hee,Hahn, Tae-Wook 대한수의학회 2015 大韓獸醫學會誌 Vol.55 No.1

Ginseng has been widely used in Korea as a natural medicine due to its saponin contents. Although the total amount of ginseng stem and leaf saponins (GSLS) is 4~5 times higher than that of saponin in the root, the root is mainly used. This is due to two reasons: nervous system-stimulant activity of GSLS and pesticide residues in GSLS. In this study, residual agricultural pesticides were removed from GSLS using two types of bacterial treatments. Two GSLS treatment groups of chickens (GSLS-1 and GSLS-2) were established. The chickens were fed 0.4% GSLS-1 or GSLS-2 mixed with crop. We then evaluated the effects of GSLS on bodyweight and several immune parameters. At the end of the experiments, chickens fed GSLS-1 and red ginseng saponin had significantly higher growth rates (16.6% and 8.0%, respectively) compared to the vaccine control group treated with Noblis Salenvac-T. The group fed GSLS-1 also had the highest IgG titer that was significantly different at the end of experiments compared to the other groups. These findings imply that GSLS-1 is a good candidate feed additive for the chicken industry.

우리나라에서 분리된 참다래 꽃썩음병 병원세균(Pseudomonas syringae pv. syringae)의 플라스미드와 Cu 저항성 유전자

박소연,한효심,이영선,고영진,신종섭,정재성,Park, So-Yeon,Han, Hyo-Shim,Lee, Young-Sun,Koh, Young-Jin,Shin, Jong-Sup,Jung, Jae-Sung 한국미생물학회 2007 미생물학회지 Vol.43 No.4

Pseudomonas syringae pv. syringae는 우리나라에서 참다래 꽃썩음병의 원인세균으로 알려져 있다. 본 연구에서는 우리나라의 서로 다른 참다래 과수원에서 분리되어 동정된 11개 균주의 꽃썩음병균이 가지고 있는 플라스미드 양상을 pulsed-field 젤 전기영동으로 조사하였다. 그 결과 전체 균주들은 가지고 있는 플라스미드의 개수와 크기에 따라 6개 그룹으로 나누어 졌다. 플라스미드의 수는 0에서 4개, 크기는 22 kb에서 160 kb로 다양하였다. 이들 중 두 개의 플라스미드를 가지고 있는 그를 III에 속하는 4균주가 Cu에 대한 저항성을 보였다. Southern blot hybridization 결과 Cu 저항성 유전자는 48 kb 크기의 플라스미드에 들어 있었다. Pseudomonas syringae Pv. syringae is a causal agent of bacterial blossom blight of kiwifruit in Korea. Eleven strains of the pathogen were isolated from different kiwifruit orchards in Korea and the plasmid profiles were obtained by pulsed-field gel electrophoresis. They could be clustered into six groups according to the number and size of plasmids. The number of plasmids per strain and size of these plasmids ranged from 0 to 4 and from 22 to 160 kb, respectively. Among them, four strains belonging to Group III which harbored two plasmids were resistant to copper sulfate. Southern blot hybridization of the plasmid DNA indicated that the copper resistance determinant was carried on a 48 kb plasmid.

사서공무원 공개채용 시험과목의 직무전문성에 대한 인식 분석 연구

박소연,노영희,Park, So-Yeon,Noh, Younghee 한국비블리아학회 2014 한국비블리아학회지 Vol.25 No.2

본 연구에서는 변경된 사서직 공무원 시험제도가 사서직 직무전문성을 향상시키는 방향으로 개정이 되었는지에 대한 인식을 현직 사서공무원 대상의 설문을 통해 파악하고자 한다. 또한 본 연구를 통해 사서직 공무원 채용에 사서직 직무전문성을 갖춘 인재채용을 위한 시험과목과 채용제도의 개선안을 제안하고자 하였다. 연구결과 첫째, 현직 사서공무원은 변경된 사서직 8 9급공무원 공채 시험과목이 사서직 직무전문성을 가진 사람을 채용하는데 있어 실용성이 없는 것으로 인식하고 있었다. 둘째, 응답자의 78.5%가 변경된 과목(행정학개론, 사회, 과학, 수학)보다는 사서직 전공과목을 위주로 필기시험과목을 조정해야 한다고 생각하고 있었다. 셋째, 전문성 향상을 위한 사서직 공무원 공개채용 시험과목으로 '도서관경영론', '정보조직론', '장서관리론' 과목이 필요하다고 생각하는 것으로 조사되었다. The purpose of this study was to investigate the appropriateness of the open competitive examination subjects to selecting the personnel with work profession targeted the public official librarian engaging the libraries directly operated by education office and city hall of Seoul. Also, this study suggested the ways for selecting excellent personnel within work profession. First, the public official librarian recognized that there was no practicality regarding the subjects of the open recruitment that recruit for the personnel with work profession. Second, 78.5% of the public official librarian responded the new subjects including science of public administration, social studies, science, and mathematics needed to be revised to a written examination. Third, the public official librarian thought the subjects such as library management theory, organization of information, and collection management was more appropriate for the improvement of the profession.

웹 기반 지진 방재 커뮤니티 구축에 대한 정책 제언

박소연,이영곤,김백조,Park, So-Yeon,Lee, Yeong-Gon,Kim, Baek-Jo 한국방재학회 2011 한국방재학회지 Vol.11 No.4