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김진형,성제현 서울대학교 언어교육원 2019 語學硏究 Vol.55 No.1
In English noun phrases, a general restriction against stress clash is sometimes violated. Such variation in rhythmic stress shift raises the question of when and why native speakers choose one variant over another. The aim of this paper was to analyze such variation and identify factors that underlie the shift variation found in English [level 2 prefixed adjective + noun] phrases on the basis of native speakers’ responses. The results suggest that the variation is driven by the interplay of the phonotactics across morpheme boundaries, the morphological structure of complex adjectives, the conspiracy of foot form improvement depending on the harmony scale, and the optimal eurhythmic distance in rhythmic stress shift.
김진형,한원식,손호진,강상욱 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.0
A series of modified bis(4-(4,5-diphenyl-4H-1,2,4-triazol-3-yl)phenyl)dimethylsilane (ST), ST-CF3, ST-Me, ST- tBu, and ST-OMe, were designed and prepared by introducing the electron-withdrawing groups or the electron-donating groups at the 4-position of the end-on phenyl groups on the triazole ring. Systematic investigations of their thermal-, photophysical-, and electron-transporting properties were successfully carried out. Depending on the electronic characteristics of the substituents at the end-phenyl group on the triazole, their frontier orbital energy levels were controlled while maintaining energy band gaps. Low- temperature photoluminiscenec spectra indicate that all the prepared ST moieties maintained high triplet energy states up to 2.85 eV owing to the suppression of electron delocalization by silicon centre. Finally, the EL device utilizing ST-tBu as an electron transporting material in PhOLED with FIrpic as a dopant showed an external quantum efficiency of 15%.
김진형,김미성,Lim Soyeoun,박선영,제갈양진,이태훈,강병주 대한중환자의학회 2023 Acute and Critical Care Vol.38 No.3
Systemic glucocorticoid treatment is highly recommended in critically ill coronavirus disease 2019 (COVID-19) patients. However, secondary fungal infections are of concern in such patients. Here, we describe the first case of COVID-19-associated invasive pulmonary aspergillosis (CAPA) and COVID-19-associated mucormycosis (CAM) coinfection in a COVID-19 positive immunocompetent patient in Korea. A 69-year-old man was admitted to our hospital with COVID-19 pneumonia. He had no underlying comorbidities and was not taking medications. He received remdesivir, dexamethasone, and antibiotic therapy under mechanical ventilation. Although his condition improved temporarily, multiple cavities were observed on chest computed tomography, and Aspergillus fumigatus was cultured from tracheal aspiration culture. He was diagnosed with probable CAPA and received voriconazole therapy. However, his condition was not significantly improved despite having received voriconazole therapy for 4 weeks. After release from COVID-19 quarantine, he underwent bronchoscopy examination and was then finally diagnosed with CAPA and CAM coinfection on bronchoscopic biopsy. Antifungal treatment was changed to liposomal amphotericin B. However, his progress deteriorated, and he died 4 months after admission. This case highlights that clinical suspicion and active checkups are required to diagnose secondary fungal infections in immunocompetent COVID-19 patients who receive concurrent glucocorticoid therapy.