ChemInform Abstract: Facile Synthesis of Benzocyclohepta[1,2‐c]pyrazoles Starting from Morita—Baylis—Hillman Adducts via an Intramolecular Friedel—Crafts Alkenylation.

Yu, Jin,Lee, Sangku,Moon, Hye Ran,Kim, Jae Nyoung WILEY‐VCH Verlag 2015 Chem Inform Vol.46 No.46

An Efficient Synthesis of Poly-Substituted Phenols and Pyridines from Morita-Baylis-Hillman Acetates and Diethyl Oxalacetate

Yu, Jin,Kim, Ko Hoon,Lee, Hyun Ju,Kim, Jae Nyoung Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.10

Various phenol derivatives were synthesized in a one-pot reaction from MBH acetates and sodium diethyl oxalacetate via a [4C+2C] cyclization protocol. In addition, some pyridine derivatives could also be synthesized using the same starting materials, by isolating the $S_N2^{\prime}$ reaction intermediate and performing the cyclization with $NH_4OAc$.

Understanding Fashion Designers’ Behavior Using Generative AI for Early-Stage Concept Ideation and Revision

Yu Jin,Juhyeok Yoon,James Self,Kyungho Lee 한국디자인학회 2024 디자인학연구 Vol.37 No.3

Background : Generative AI has emerged as a powerful tool in fashion design, supporting activities such as ideation, sketching, and creativity enhancement. This study explores how commercial generative AI tools like Bing, Midjourney, and DALL-E can augment the creative processes of professional fashion designers during the early stages of concept ideation and revision. Methods : A mixed-methods approach was employed, involving a pilot study, sketch experiment interviews, and a focus group discussion. 19 participants, including design students and professionals, used AI tools Midjourney and DALL-E for concept ideation and revision. Data were analyzed using thematic analysis, focusing on understanding designers’ behavior and decision-making processes while using generative AI tools. Results : Generative AI tools significantly enhanced the early stages of fashion design by providing diverse and rapid visual stimuli. Designers interacted with AI tools through text prompts, refining hand-drawn sketches, and enhancing digital sketches, which facilitated creativity and decision-making. Challenges identified included biases in AI outputs, intellectual property concerns, and usability issues. Conclusions : The study highlights the potential of generative AI to enhance the fashion design process by providing diverse visual stimuli and accelerating concept ideation and revision. The study identifies key challenges such as biases, intellectual property concerns, and gaps between designer intentions and AI realizations. Future research should explore a broader range of AI tools, long-term impacts, and ethical implications, underscoring AI’s role in augmenting and co-creating, rather than replacing, human creativity in fashion design.

Biosorption of Lead(II) by Arthrobacter sp. 25: Process Optimization and Mechanism

( Yu Jin ),( Xin Wang ),( Tingting Zang ),( Yang Hu ),( Xiaojing Hu ),( Guangming Ren ),( Xiuhong Xu ),( Juanjuan Qu ) 한국미생물생명공학회 2016 Journal of Microbiology and Biotechnology Vol.26 No.8

In the present work, Arthrobacter sp. 25, a lead-tolerant bacterium, was assayed to remove lead(II) from aqueous solution. The biosorption process was optimized by response surface methodology (RSM) based on the Box-Behnken design. The relationships between dependent and independent variables were quantitatively determined by second-order polynomial equation and 3D response surface plots. The biosorption mechanism was explored by characterization of the biosorbent before and after biosorption using atomic force microscopy (AFM), scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. The results showed that the maximum adsorption capacity of 9.6 mg/g was obtained at the initial lead ion concentration of 108.79 mg/l, pH value of 5.75, and biosorbent dosage of 9.9 g/l (fresh weight), which was close to the theoretically expected value of 9.88 mg/g. Arthrobacter sp. 25 is an ellipsoidalshaped bacterium covered with extracellular polymeric substances. The biosorption mechanism involved physical adsorption and microprecipitation as well as ion exchange, and functional groups such as phosphoryl, hydroxyl, amino, amide, carbonyl, and phosphate groups played vital roles in adsorption. The results indicate that Arthrobacter sp. 25 may be potentially used as a biosorbent for low-concentration lead(II) removal from wastewater.

Internationalization of Chinese Banks : Location and Entry Mode Decisions

Yu, Jin,Jin, Yuanling,Park, Young-Ryeol 한국국제경영관리학회 2020 국제경영리뷰 Vol.24 No.3

본 연구는 그동안 중국 은행산업 관련된 연구들에서 다국적 은행(MNB)에 기반한 연구는 아주 부족한 실정이었으며 글로벌화 과정 에서 전략적 행동 관점으로 중국 은행의 입지 선택 및 진입모드 전략에 영향을 미치는 요인에 대한 최초의 실증적 연구라고 볼 수 있다. 본 연구는 이항 로지스틱 회귀 모델을 사용하여 해외시장 확장에 영향 주는 요인에 대해 고찰하였으며 실증 연구 결과 중국 은행이 현지 시장에서 새로운 기회를 찾기보다는 해외시장에서 기존 고객과 글로벌 리더를 따르고 있다는 중요한 시사점을 제공하고 있다. 해 외 투자다 새로운 기업과의 통합과 같은 현지 및 해외시장 진출은 모두 비용을 동반하는데 이러한 요인은 모두 국가 수준에서는 인수 를 더욱 선호함을 알 수 있다. Follow the customer 과 Follow the leader 가설의 경우 모두 긍정적이고 유의한 경향을 나타냈으며 이는 중국 은행들은 중국 현지에서 지점을 세운 해외 은행의 본국에 진출하는 경향이 많다고 나타났다. 입지 선택의 관점에서는 지리적, 문화적 거리는 모두 유의한 결과를 나타내고 있지만 반대 방향의 결과를 보여주고 있다. 이는 중국 은행은 개발도상국에서 인수를 선호하는 것으로 나타났으며 기업 수준에서는 은행의 과거 인수경험 변수도 유의한 결과를 보여 주고 잇다. 본 연구는 eclectic paradigm 이론 관점에서 개발 도상국의 은행이 해외 직접투자를 하는 이론적 고찰에 새로운 시사점을 제공 하고 있다. In response to the lack of research on Chinese banks in the context of multinational banks (MNB), this study may be the first empirical study of the factors influencing a Chinese bank’s location and entry mode strategies in the process of globalization from the strategic behavior perspective. This study uses two binary logistic regression models to investigate the impacts of the determinants on the width and depth of foreign expansion activities. The results provide significant evidence that Chinese banks follow their existing customers and global industry leaders when they expand abroad rather than seek local market opportunities, though the two distance factors representing the cost result from cross-border investment and post transaction integration influence the country-level decision to involve in an acquisition. In terms of the follow-the-customer hypothesis, the sign on FDI is both positive and significant. The follow-the-leader variable related to strategic interactions is defined at the global industry level. Chinese banks are more likely to enter a host country in which one of the host country’s banks already established a branch in China, as an “exchange-of-threat.” In terms of the follow-the-customer hypothesis related to the location of entry through acquisition, the coefficient on the FDI and overseas chinese variables are both positive and significant. In terms of entry mode strategy, the coefficients on geographic and cultural distance variable are both significant, but with different signs. It is reflects the fact that Chinese banks are active in acquisitions in less developed countries with higher cultural approximation. At the bank level, the influence of their past acquisition experience is also significant. The study provides further support to the argument that the eclectic paradigm and strategic reaction perspectives can offer complementary explanations of FDI by foreign banks from developing countries.

S-269 Role of high-sensitivity troponin I for risk stratification in non-cardiac surgery

( Yu Jin ),( Ahram Yi ),( Mina Hur ),( Soo-nyung Kim ),( Hyun Suk Yang ) 대한내과학회 2016 대한내과학회 추계학술발표논문집 Vol.2016 No.1

Background: As an internal medicine doctor, consulting on risk stratification in patients undergoing non-cardiac surgery is not always clear.?Objective: We test the sensitive and specific cardiovascular biomarker high sensitivity troponin I (hs-cTnI) to predict 30-day events.?Methods: From June 2014 to May 2015, we prospectively enrolled patients age≥45years who underwent in-patient non-cardiac surgery. hs-cTnI was measured before and the first 3 postoperative days.Results: A total of 175 patients (66±12 years, F/M 85/90) were enrolled as ASA class in I(7%), II(55%), III(30%), and IV(8%). The revised cardiac risk index for the operation was low in 1(0.6%), moderate in 172(98%), and high in 2(1.1%). The hs-cTnI was elevated in D1, and D2 compared with D0 (10.35[4.8-25.75] and 11.15[5.05-30.25] vs. 7.85[3.0-20.6] pg/mL, all p<0.05). The 30-day events were observed in 16 patients (death in 6, cardiac arrest in 4, NSTEMI in 5, heart failure in 11). Pre-operative basal hs-cTnI or perioperative maximum hs-cTnI level significantly predicted 30-day events (AUC 0.658, p=0.037; AUC 0.784, p<0.001, respectively); the cut-off values were 7.85 pg/mL for basal hs-cTnI (sensitivity 62.5%, specificity 72.3%) and 53.0 pg/mL for max hs-cTnI (sensitivity 68.8%, specificity 78.6%).?Conclusions: Preoperative as well as perioperative maximum hs-cTnI showed predictive value for 30-day events in patients undergoing non-cardiac surgery. It may provide additional risk stratification in ages ≥45 who undergo non-cardiac surgery.

Facile One-Pot Synthesis of 1,3,5-Trisubstituted Pyrazoles from α,β-Enones

Yu, Jin,Kim, Ko Hoon,Moon, Hye Ran,Kim, Jae Nyoung Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.6

A practical and efficient one-pot synthesis of 1,3,5-trisubstituted pyrazoles from ${\alpha},{\beta}$-enones and arylhydrazine hydrochlorides has been developed. The pyrazoles were formed via a tandem formation of the corresponding pyrazolines and an acid-catalyzed aerobic oxidation process.

Design Innovations and Market Strategies in China's Electric Vehicle Industry

Yu Jin,Sung Jun Kim(김성준),KyungHo Lee(이경호),Hui Sung Lee(이희승) 한국자동차공학회 2024 한국자동차공학회 학술대회 및 전시회 Vol.2024 No.11

This study examines the rapid growth of electric vehicles (EVs) in China, driven by government incentives, changing consumer preferences, and technological advancements. Through three case studies, we highlight how automakers leverage customer demand, brand loyalty, and autonomous driving technology. The research identifies gaps in EV design literature, focusing on the design and functionality, and offers insights into future trends in the Chinese EV market.

논설문 채점에 나타난 국어 교사의 채점 편향의 특성 분석 - 텍스트 특징에 따른 채점 편향 분석을 중심으로

백유진 ( Baek¸ Yu-jin ) 청람어문교육학회(구 청람어문학회) 2020 청람어문교육 Vol.0 No.76

이 연구의 목적은 논설문 채점에서 나타나는 채점 편향의 특성을 분석하여 채점자의 일관성 수준을 적절하게 유지하기 위한 방안을 모색하는 것이다. 연구 결과는 다음과 같다. 첫째, 전체 엄격성의 일관성 수준을 적합하게 유지한 채점자의 채점 결과에서도 특정 국면에서는 엄격성을 유지하지 못하는 편향이 산출되었다. 둘째, 편향 패턴은 채점자별로 매우 상이한 것으로 나타났다. 편향이 나타난 텍스트는 총 49편(53.3%)이었으며, 이 중 관대한 편향과 엄격한 편향이 동시에 나타난 텍스트는 23편(25%)에 달했다. 셋째, 텍스트 수준이 매우 낮거나, 매우 높은 경우, 텍스트의 양이 매우 많거나 매우 적은 경우, 문단 구분이 잘 되어 있는 경우 편향이 나타날 확률이 높은 것으로 나타났다. 이러한 결과를 바탕으로 편향을 최소화하기 위한 채점 훈련 방안, 채점 설계 및 결과 해석 시 유의사항 등에 대해 제언하였다. The purpose of this paper is to analyze the characteristics of rating bias of korean language teachers and to find ways to maintain the level of consistency of rater appropriately. The result of this study are as follows. First, even in the result of rater who kept the level of consistency appropriately, a bias that did not maintain the level of severity in a particular facet was produced. Second, bias patterns vary from raters. Bias was produced in 49 texts(53.3%) and both lenient and severe bias was produced at the same time in 23 texts. Third, if the level of text is very low, very high, if the quantity of text is large, very small and if the paragraph is well organized, bias is more likely to produce. Based on these result, in designing the rating method, rating training and interpreting the result of rating, some ways that make raters maintain their level of severity consistently was suggested.

『溪西雜錄』의 轉移樣相

金維眞 ( Kim¸ Yu-jin ) 한국한문학회 2020 韓國漢文學硏究 Vol.0 No.80

본 연구는 완질 『溪西雜錄』 4책 소재의 야담이 後代 野談集에 轉移된 樣相에 대한 文獻學的 고찰의 결과이다. 본고에서는 溪西雜錄系 野談이 『紀聞叢話』와 『溪西野譚』에 전이된 양상을 살펴보았다. 4책본 『기문총화』를 기준으로 제2책과 제3책의 경우 상당부분의 일화들이 『계서잡록』에서 전이된 것임을 재확인하였고, 『계서야담』 소재 야담 역시 대부분 『계서잡록』에서 전이된 것임을 확인하였다. 이 과정에서 근래에 공개된 河合本 『溪西野譚』를 奎章閣本, 延世大本 등과 비교 검토하였고, 그 결과 河合本이 延世大本 『계서야담』과 동일 계열의 이본임을 밝히게 되었다. 또한 河合本 上冊이, 그동안 5책 중 4책만 남아 零本으로 여겨졌던 延世大本의 일실된 金冊에 해당한다는 사실을 알게 되었다. 이를 통해 5책의 『계서야담』을 再構해볼 수 있었다. 18세기 편찬된 『東稗洛誦』, 『鶴山閑言』, 『雜記古談』 등은 著者의 이름이 밝혀진 記名의 野談集으로 독자적 著作物로 간주될 수 있는 반면 19세기 중ㆍ후반 편찬된 것으로 추정되는 『紀聞叢話』, 『溪西野譚』, 『靑邱野談』은 編者의 이름이 밝혀지지 않은 匿名의 野談集으로 前代의 野談集을 刪削한 編輯物로 볼 수 있을 것이다. 『계서잡록』은 19세기 초반 편찬된 記名의 著作物로 저작과 편집의 중간 단계에 놓인 野談集이라 할 수 있다. This study is the result of the literature review on the pattern of the reproduction in the later collection of the Yadam of the Gye-seo-jab-rok(溪西雜錄). The Yadam texts of the Gye-seo-ya-dam(溪西野譚) were compiled by compiling the aspects of each pieces in the Gye-seo-jab-rok and the another compilation of Yadam texts, Gi-mun-chong-hwa(紀聞叢話). As a result, it was reaffirmed that many of the Yadam texts in the Gye-seojab- rok were republished in the Gi-mun-chong-hwa and Gye-seo-ya-dam. In addition, it was possible to summarize the aspects of Yadam texts in the Gye-seo-jab-rok, Gye-seo-ya-dam and Gi-mun-chong-hwa in a comprehensive tables. In the process, the recently released Kawai edition's Gye-seo-ya-dam was compared to Kyujanggak's and Yonsei University's. As a result, it was revealed that Kawai edition was not a Kyujang's, but a copy of the Yonsei University's. It was also revealed that Yonsei University's version matched Kawai edition's. Dong-nak-pae-s ong, Hak-san-han-eon, and Jab-gi-go-dam, which were compiled in the 18th century, can be regarded as independent works by the author. On the other hand, Gi-mun-chong-hwa, Gye-seo-ya-dam, and Cheong-gu-yadam, which are presumed to have been compiled in the mid-to-late 19th century, can be regarded as a scattering compilation of previous generations' stories. Gye-seo-jab-rok is a collection of works is that in the middle of writing and editing, compiled in the early 19th century.