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배달음식의 이용현황과 인식 및 만족도 연구-수도권 20∼30대 1인 가구를 중심으로-
송호철,오정훈,심성진,강근옥 한국외식산업학회 2023 한국외식산업학회지 Vol.19 No.1
This study investigated usage behavior, preferred recipe, and satisfaction of delivery food on single households in their 20s∼30s. The collected data consisted of 315 sheets, and the frequency and percentage standard deviation were calculated using SPSS PASW 21.0. Chi-squared test, independent sample t-test, regression analysis were performed. The results are summarized as follows. Regarding the frequency of delivery food uses, once or twice a week was the highest (43.8%), and 77.1% people use delivery food for dinner. The most of people spent 15,000∼20,000 won for one delivery (42.2%), and main delivery foods were fast food (33.3%) and Korean food(27.6%). What was considered most important as delivery food was taste (54.3%), followed by price (26.0%), recommendation (7.3%), quantity (4.1%). The most of people used delivery apps (96.8%), and the most preferred delivery food companies are franchised delivery food restaurants (44.4%). Regarding the recognition about delivery food, taste·savor was the highest (3.36), followed by health (2.36), sanitation (3.19), diversity (4.29), usability (4.24) and reuse intention (3.99). And the overall satisfaction with delivery food was 3.62. In the multiple response for the improvements of delivery food, the most responses were lowering price (68.9%) followed by hygienic packing (32.4%). The preference for delivery food ingredients was chicken(4.19), and the preference for cooking method was highest in roasting(4.17).
영가철과 여러 가지 산화철 조합공정을 이용한 질산성질소 환원에 관한 연구
송호철,전병훈,조동완,Song, Hocheol,Jeon, Byong-Hun,Cho, Dong-Wan 한국지하수토양환경학회 2014 지하수토양환경 Vol.19 No.1
This paper presents the feasibility of using different iron oxides (microscale hematite (HT), microscale magnetite (MT), and nanoscale maghemite (NMH)) in enhancing nitrate reduction by zero-valent iron (Fe(0)) under two solution conditions (artificial acidic water and real groundwater). Addition of MT and NMH into Fe(0) system resulted in enhancement of nitrate reduction compared to Fe(0) along reaction, especially in groundwater condition, while HT had little effect on nitrate reduction in both solutions. Field emission scanning electron microscopy (FESEM) analysis showed association of MT and NMH with Fe(0) surface, presumably due to magnetic attraction. The rate enhancement effect of the minerals is presumed to arise from its role as an electron mediator that facilitated electron transport from Fe(0) to nitrate. The greater enhancement of MT and NMH in groundwater was attributed to surface charge neutralization by calcium and magnesium ions in groundwater, which in turn facilitated adsorption of nitrate on Fe(0) surface.
승기배,강문원,최규보,이원영,강동헌,나종순,추교영,송호철 대한감염학회 1993 감염 Vol.25 No.4
심근염은 다양한 원인에 의해 유발될 수 있으나 포도상구균에 의한 증례는 국내에 보고된 바가 없었다. 저자들은 포도상구균 패혈증 환자에서 발생된 완전 방실차단을 동반한 심근염을 항생제 및 영구 심장박동 조율기로 치료한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Myocarditis, and inflammatory process involving the myocardial wall, may be caused by most infectious agents. Irrespective of its etiology, it presents commonly with evidence of heart failure, hypotension, and various electrocardiographic abnormalities. Patient with myocarditis may be asymptomatic or may have a rapidly progressive fatal disease. Medical management of patients with myocarditis includes specific therapy for underlying infection and control of the complication of myocarditis such as congestive heart failure and arrhythmia. There is hardly any clinical report regarding myocarditis in staphylococcal bacteremia. Recently we had experienced staphylococcal sepsis with myocarditis and complete atrioventricular block in 36-year-old man following furuncle on right flank area. Clinically he had shown complete recovery after administration of antibiotics and insertion of permanent pacemaker, so we report it with review of the literature.