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풍동실험을 통한 방풍용 서양측백나무와 농업용방풍망의 공기역학계수 평가
이소진 ( Lee¸ Sojin ),하태환 ( Ha¸ Taehwan ),서시영 ( Seo¸ Siyoung ),송호성 ( Song¸ Hosung ),우샘이 ( Woo¸ Saemee ),장유나 ( Jang¸ Yuna ),정민웅 ( Jung¸ Minwoong ),조광곤 ( Jo¸ Gwanggon ),한덕우 ( Han¸ Dukwoo ),황옥화 ( Hwang¸ Okh 한국농공학회 2021 한국농공학회논문집 Vol.63 No.5
Windbreak forests, which have a windproof effect against strong winds, are known to be effective in reducing the spread of odors and dust emitted from livestock farms. The effect of reducing the spread of odors and dust can be estimated through numerical models such as computational fluid dynamics, which require aerodynamic coefficients of the windbreaks for accurate prediction of their performance. In this study, we aimed to evaluate the aerodynamic coefficients, Co, C<sub>1</sub>, C<sub>2</sub>, and α, of two windbreaks, Thuja occidentalis and a mesh net, through wind tunnel experiments. The aerodynamic coefficients were derived by the relation between the incoming wind speed and the pressure loss due to the windbreaks which was measured by differential pressure sensors. In order to estimate the change in the aerodynamic coefficient concerning various leaf density, the experiments were conducted repeatedly by removing the leaves gradually in various stages. The results showed that the power law regression model more suitable for coefficient evaluation compared to the Darcy-Forchheimer model.
The Effects of Acupotomy Therapy on Carpal Tunnel Syndrome: A Report of 4 Cases
Lee, Seongjin,Cha, Eunhye,Yang, Muhak,Lee, Jongdeok,Lee, Jiyoung,Lee, Sojin,Kim, Deokho,Kim, Sungchul Korean AcupunctureMoxibustion Medicine Society 2018 Korean Journal of Acupuncture Vol.35 No.1
The aim of this report was to show the effects of acupotomy in patients with carpal tunnel syndrome. Four patients were treated with acupotomy twice. Visual analogue scale (VAS), Tinel's sign, Phalen's test, Boston carpal tunnel syndrome questionnaire (BCTQ), muscular strength test, and a cross-sectional area of median nerve was measured using ultrasound before and after treatment. In all 4 cases, the VAS score, BCTQ score and cross-sectional area of median nerve, all decreased and muscular strength test score increased. Tinel's sign and the Phalen's test changed from a positive to a negative in most cases. This report shows that acupotomy is an effective treatment for carpal tunnel syndrome. Further larger are needed to fully evaluate the beneficial effects of this treatment.
Detecting Positive Selection of Korean Native Goat Populations Using Next-Generation Sequencing
Lee, Wonseok,Ahn, Sojin,Taye, Mengistie,Sung, Samsun,Lee, Hyun-Jeong,Cho, Seoae,Kim, Heebal Korean Society for Molecular and Cellular Biology 2016 Molecules and cells Vol.39 No.12
Goats (Capra hircus) are one of the oldest species of domesticated animals. Native Korean goats are a particularly interesting group, as they are indigenous to the area and were raised in the Korean peninsula almost 2,000 years ago. Although they have a small body size and produce low volumes of milk and meat, they are quite resistant to lumbar paralysis. Our study aimed to reveal the distinct genetic features and patterns of selection in native Korean goats by comparing the genomes of native Korean goat and crossbred goat populations. We sequenced the whole genome of 15 native Korean goats and 11 crossbred goats using next-generation sequencing (Illumina platform) to compare the genomes of the two populations. We found decreased nucleotide diversity in the native Korean goats compared to the crossbred goats. Genetic structural analysis demonstrated that the native Korean goat and cross-bred goat populations shared a common ancestry, but were clearly distinct. Finally, to reveal the native Korean goat's selective sweep region, selective sweep signals were identified in the native Korean goat genome using cross-population extended haplotype homozygosity (XP-EHH) and a cross-population composite likelihood ratio test (XP-CLR). As a result, we were able to identify candidate genes for recent selection, such as the CCR3 gene, which is related to lumbar paralysis resistance. Combined with future studies and recent goat genome information, this study will contribute to a thorough understanding of the native Korean goat genome.
Lee Ji Joo,Choe Young June,Jeong Hyeongseop,Kim Moonsu,Kim Seonggon,Yoo Hanna,Park Kunhee,Kim Chanhee,Choi Sojin,Sim JiWoo,Park Yoojin,Huh In Sil,Hong Gasil,Kim Mi Young,Song Jin Su,Lee Jihee,Kim Eun- 대한의학회 2021 Journal of Korean medical science Vol.36 No.50
In November 2021, 14 international travel-related severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) B.1.1.529 (omicron) variant of concern (VOC) patients were detected in South Korea. Epidemiologic investigation revealed community transmission of the omicron VOC. A total of 80 SARS-CoV-2 omicron VOC-positive patients were identified until December 10, 2021 and 66 of them reported no relation to the international travel. There may be more transmissions with this VOC in Korea than reported.
Photoluminescent polymer nanoparticles for label-free cellular imaging
Lee, Kyung Jin,Oh, Wan-Kyu,Song, Jooyoung,Kim, Sojin,Lee, Jiwoon,Jang, Jyongsik Royal Society of Chemistry 2010 Chemical communications Vol.46 No.29
<P>Novel polymer based photoluminescent nanoparticles were fabricated by ultra-sound induced emulsion polymerization and applied to bioimaging of human breast cancer SK-BR-3 cells after ethylenediamine treatment and conjugation with <I>anti</I>-ErbB2 antibody.</P> <P>Graphic Abstract</P><P>Novel polymer based photoluminescent nanoparticles were fabricated by ultra-sound induced emulsion polymerization and applied to bioimaging of human breast cancer SK-BR-3 cells after ethylenediamine treatment and conjugation with <I>anti</I>-ErbB2 antibody. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c002533j'> </P>