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권예슬 ( Ye Seul Kwon ),전진아 ( Jin Ah Jeon ),정석태 ( Seok Tae Jeong ),최한석 ( Han Seok Choi ),강지은 ( Ji Eun Kang ) 한국산업식품공학회 2021 산업 식품공학 Vol.25 No.4
The objective of this study was to draw the evaluation items in which everyone could easily express the aroma and taste of yakju. In the results of applying the 3-step Delphi technique to a total of 20 trained experts in traditional liquors and analyzing the validity and reliability of opinions through Kendall’s W-Test, components were classified into three general areas such as aroma, odor, and palate. Aroma was categorized into ten upper items such as fruit, plant, grain, flower, dairy product, medicinal herbs, nuts, spice, fermentation, and sweetness. Odor was grouped into a single upper item like off-odor, while the palate area was sorted into two upper items such as taste and mouthfeel. A total of 89 kinds of detailed items expressing each upper item were drawn. This study could be a foundation for moving the subject to the world stage by objectively and efficiently expressing the taste and aroma of Korean yakju to the foreigners, consumers, and industry that produces traditional liquors, using the items for evaluating the taste and aroma of traditional liquors drawn in this study.
윈치커튼식 계사 내 시기 및 작업자 출입에 따른 공기 중 분진 농도 측정 연구
조예슬 ( Ye-seul Jo ),권경석 ( Kyeong-seok Kwon ),이인복 ( In-bok Lee ) 한국농공학회 2015 한국농공학회 학술대회초록집 Vol.2015 No.-
국내 양계 생산성의 향상은 가금 산업의 수출경쟁력에 긍정적인 영향을 미치고 있으나 공급량 확보를 위한 대형화 및 과잉생산은 사육밀도를 증가시켜 계사 내 열악한 환경을 조성한다. 특히 밀집형 사육 환경으로 인하여 계사 내 분진 환경이 악화 되었으며, 이는 계군 및 작업자의 기관지염, 직업형 천식 등 호흡기성 질병을 유발하는 요소로 작용하고 있다. 그러나 이러한 피해에도 불구하고 국내 양계장 내 분진 환경에 대한 정기적인 모니터링 및 연구가 미비할 뿐만 아니라 양계장 내 허용기준치와 같은 법적 규제가 마련되어 않은 실정이다. 따라서 본 연구에서는 Kwon 등 (2014)에 의하여 수행된 강제환기식 계사 내 공기질 평가의 연속적인 연구로써, 윈치커튼식 계사를 대상으로 TSP, PM10, 흡입성분진, 호흡성 분진의 농도에 대하여 계절, 일령, 작업자 출입에 따른 계군의 활동성에 따라 정기적으로 모니터링을 실시하였으며 (2013.09 ~ 2014. 09), Donham et al. (2000)이 제시한 허용 기준치에 의거하여 계사 내 공기질 평가를 수행하였다. TSP 및 PM10 농도의 경우 계절 및 일령에 따라 확연한 농도차이가 발생하였으며, TSP대비 PM10의 농도비는 계절에 관계없이 일정 하게 나타나 작업자 호흡기 위치에 존재하는 분진 대부분이 PM10 이하로 구성되어 있을 것으로 판단된다. 흡입성 및 호흡성 분진 측정 결과 계절에 따른 농도차이가 확연하게 관측되었으며, 이는 환기량의 차이에 의한 것으로 판단된다. 특히 동절기 평균 농도는 허용기준치의 약 119% 초과 할 정도로 높은 수준의 분진농도가 관측되었다. 작업자의 출입에 따라 계군의 활동성이 활발해지는 경우, 안정한 시기에 비하여 최대 769.6% 높은 수치를 보였으며, 계군의 활동성이 활발한 경우 대부분 허용 기준치를 초과하는 것으로 나타났다.
Lim, Ye Seul,Kwon, Hyung-Soon,Jeong, Jeunghyun,Kim, Jin Young,Kim, Honggon,Ko, Min Jae,Jeong, Unyong,Lee, Doh-Kwon American Chemical Society 2014 ACS APPLIED MATERIALS & INTERFACES Vol.6 No.1
<P>We demonstrate here that an improvement in the green density leads to a great enhancement in the photovoltaic performance of CuInSe<SUB>2</SUB> (CISe) solar cells fabricated with Cu–In nanoparticle precursor films via colloidal solution deposition. Cold-isostatic pressing (CIP) increases the precursor film density by ca. 20%, which results in an appreciable improvement in the microstructural features of the sintered CISe film in terms of a lower porosity, a more uniform surface morphology, and a thinner MoSe<SUB>2</SUB> layer. The low-band-gap (1.0 eV) CISe solar cells with the CIP-treated films exhibit greatly enhanced open-circuit voltage (<I>V</I><SUB>OC</SUB>, typically from 0.265 to 0.413 V) and fill factor (FF, typically from 0.34 to 0.55), compared to the control devices. As a consequence, an almost 3-fold increase in the average efficiency, from 3.0 to 8.2% (with the highest value of 9.02%), is realized. Diode analysis reveals that the enhanced <I>V</I><SUB>OC</SUB> and FF are essentially attributed to the reduced reverse saturation current density and diode ideality factor. This is associated with suppressed recombination, likely due to the reduction in recombination sites at grain/air surfaces, intergranular interfaces, and defective CISe/CdS junctions. From the temperature dependences of <I>V</I><SUB>OC</SUB>, it is revealed that CIP-treated devices suffer less from interface recombination.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/aamick/2014/aamick.2014.6.issue-1/am4040976/production/images/medium/am-2013-040976_0010.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/am4040976'>ACS Electronic Supporting Info</A></P>
Pneumococcal vaccine induced erythema nodosum: a case report
( Ye Seul Kim ),( Chang Yoon Sim ),( Sun Bum Kwon ),( Kyu Uang Whang ),( Jong Suk Lee ),( Young Lip Park ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1
Erythema nodosum is considered to be a hypersensitivity reaction to the various conditions. Vaccination related erythema nodosum is uncommon but hepatitis B virus, human papillomavirus, tetanus, diphtheria and pertussis, rabies, smallpox, typhoid and cholera and Bacille-Calmette-Guerin vaccination associated cases were reported. A 33-year-old Korean woman presented with 3 days history of painful erythematous plaques on both lower legs and knees. She received pneumococcal polysaccharide conjugate vaccine(Prevenar13®) before the skin rash. Histological examination of the left lower leg lesion revealed septal panniculitis without vasculitis. Erythema nodosum caused by pneumococcal vaccination has not previously been reported. It is important for clinicians to be aware of this rare, yet potential, adverse effect to pneumococcal vaccine.
Kwon, Oh Hyeon,Jang, Jin Woo,Park, Sun-Joo,Kim, Jun Sik,Hong, Sung Jun,Jung, Ye Seul,Yang, Heesun,Kim, Young Joo,Cho, Yong Soo American Chemical Society 2019 ACS APPLIED MATERIALS & INTERFACES Vol.11 No.1
<P>We present a planar luminescent layer for glare-free, long-lifespan white light-emitting diodes (LEDs), with attractive light outputs. The novel and facile remote phosphor approach proposed in this work enhances luminescence properties by combining a waveguiding ZnO-based nanostructure with plasmonic Au nanoparticles. The system comprised a microscale yellow phosphor layer that is applied by simple printing onto an Au nanoparticle-dispersed ZnO nanorod array. This architecture resulted in a considerable enhancement in luminous efficacy of approximately 18% because of the combination of waveguide effects from the nanorod structure and plasmonic effects from the Au nanoparticles. Performance was optimized according to the length of the Zn nanorods and the concentration of Au. An optimal efficiency of ∼84.26 lm/W for a silicate phosphor-converted LED was achieved using long ZnO nanorods and an Au concentration of 12.5 ppm. The finite-difference time-domain method was successfully used to verify the luminous efficacy improvements in the Au nanoparticle-intervened nanostructures via the waveguiding and plasmonic effects.</P> [FIG OMISSION]</BR>