침굉가사(枕肱歌辭) 3편(篇) -침굉(枕肱) 윤현변(尹懸辯) 작(作)

김봉영 국어국문학회 1959 국어국문학 Vol.- No.20

국내에서 지역사회 급성 신우신염 원인균의 항균제 감수성 결과에 근거하여 지역사회 급성 방광염 치료 항균제를 선택할 수 있는가?

김봉영,김지은,위성헌,박선희,조용균,임승관,신상엽,염준섭,이진서,권기태,이혁,정희진,박대원,류성열,정문현,배현주 대한감염학회 2012 Infection and Chemotherapy Vol.44 No.4

Background: Uncomplicated acute cystitis (CA-UAC) is one of the most common infections treated with antibiotics in the community. However, few data on etiology of CA-UAC and its susceptibility to antibiotics are available, primarily because, in Korea, insurance does not allow reimbursement for microbiological evaluation of CA-UAC. However, microbiologic data on community-acquired uncomplicated acute pyelonephritis (CA-UAPN) are available. The objective of the study was to evaluate the question of whether microbiologic data on CA-UAPN can be used for treatment of CA-UAC; therefore, etiology and antimicrobial susceptibility were compared between pathogens of CA-UAC and those of CA-UAPN. Materials and Methods: During 2008, 538 CA-UACs and 1,265 CA-UAPNs were recruited retrospectively from 14 hospitals (UTI research group). Microbiologic data on etiology and susceptibility to antibiotics were collected retrospectively. Results: Urine culture was positive in 131 CA-UACs (131/469, 27.9%) and 719CA-UAPNs (719/1249, 57.6%). Escherichia coli was the most common pathogen in both groups [83.2% (109/131) in CA-UAC vs. 91.9% (661/719) in CA-UAPN]. Susceptibility to common UTI regimens, such as ciprofloxacin, extended-spectrum cephalosporins, and trimethoprim/sulfamethoxazole did not differ between urinary pathogens of CA-UACs and CA-UAPNs, however, a significant difference was observed in rates of resistance to ampicillin/sulbactam (16.5% vs. 42.9%, P<0.001,respectively). Conclusions: Rates of resistance of E. coli from CA-UAC and CA-UAPN to most antibiotics did not differ. For proper treatment, further microbiological evaluation for CA-UAC is mandatory.

파도소리에 의한 풍력발전기 소음 마스킹에 관한 연구

김봉영,배명진 사단법인 인문사회과학기술융합학회 2019 예술인문사회융합멀티미디어논문지 Vol.9 No.1

Wind power is one of the most important renewable energy because it is a natural energy source. However, wind power plants generate wind noise, causing damage to human body and livestock, radio interference, and pressure. Especially, low-frequency noise caused by Turbulence between the blade of the wind power plant and the wind is the biggest damage. Offshore wind power plants are becoming an alternative to minimize damage from wind power plants. In this paper, we tried to find out how the wave sound reduces the wind power plant noise by predicting how offshore wind power plant noise and wave sound are transmitted to nearby people. Experiment results in chapter 3, the wind power plant noise was 12dB larger than the wave sound, but the wind power plant noise propagated inland with a lot of sound attenuation from the sea. However, the wave sound was relatively less attenuated due to the sound from the coastline and propagated with many sound components. For nearby residents, the wind power plant noise, which is relatively smaller than the wave sound, is not heard. In addition, the wave sound with various sound components is mainly heard, giving a refreshing. As a result, it was confirmed that the wave sound reduces the wind power plant noise through the masking effect. 풍력발전은 자연상태 그대로의 에너지원이라는 점에서 가장 주목받는 신재생에너지라고 할 수 있다. 그러나, 풍력발전기는 풍력소음을 발생시키고, 인체 및 가축피해, 전파방해, 위압감 등의 피해를 일으킨다. 특히 풍력발전기 블레이드와 바람 간의 Turbulence로 인해 발생하는 저주파 소음은 가장 큰 피해를 주고 있다. 풍력발전기 피해를 최소화하기 위해 해상풍력발전기가 대안이 되고 있다. 본 논문에서는 해상풍력발전기 소음과 파도소리가 인근 주민들에게 어떻게 전달되는지 예측을 통해 파도소리가 풍력발전기 소음을 어떻게 저감시키는지 확인하고자 하였다. 제3장의 실험결과 풍력발전기 소음은 파도소리에 비해 12dB 더 크지만, 해상에서부터 많은 소리감쇠가 이루어져 내륙으로 전파되었다. 그러나 파도소리는 해안선으로부터 소리가 발생하여 상대적으로 적게 감쇠되었으며, 많은 소리성분을 가지고 전파되었다. 인근주민에게는 파도소리보다 상대적으로 작아진 풍력발전기 소음은 잘 들리지 않고 여러 가지 소리성분을 가진 파도소리가 주로 들려 상쾌함을 준다. 이러한 결과로 파도소리가 마스킹 효과를 통해 풍력발전기 소음을 저감시키고 있는 것을 확인할 수 있었다.

커들란 농도에 따른 담체의 특성 변화

김봉영,이중헌 한국공업화학회 2001 한국공업화학회 연구논문 초록집 Vol.2001 No.1

N/A

중심정맥도관관련 혈류감염의 신속한 진단을 위한 실시간 다중핵산증폭검사의 유용성 평가

김봉영,박세우,김태형,김지은,임동휘,최태열,배현주,강정옥 대한감염학회 2011 Infection and Chemotherapy Vol.43 No.3

Background: The study evaluated the clinical efficacy of a multi-parameter realtime polymerase chain reaction (PCR) test for patients with central venous catheterrelated bloodstream infection (CRBSI). Materials and Methods: Thirty five patients suspected to have CRBSI were enrolled. The SeptiFast™ (SF) multi-parameter real-time PCR test (Roche Diagnostics, Germany) and blood culture were performed and results were compared. Results: The turn-around time for the SF test and blood culture was 32.6±28.9 hours and 115.8±23.5 hours, respectively. Among the 70 blood samples, the positive rates of SF test and blood culture were 34.3% and 27.1%, respectively, and the agreement rate was 62.9%. Gram-positive bacteria were detected in 10 patients with blood culture and 11 patients with SF test. Gram-negative bacteria were detected in one patient with a blood culture and in seven patients with SF test. Candida was not detected in blood culture but was detected in two patients by the SF test. Conclusions: SF test was faster and more sensitive for the detection of blood pathogens than blood culture. It provides a more sensitive detection of gramnegative and Candida in blood than does blood culture testing.

출발 물질의 종류와 조성의 변화에 따른 FAU형 제올라이트의 입도에 관한 비교 분석

김봉영,임형미,정상진,오성근 한국공업화학회 2002 한국공업화학회 연구논문 초록집 Vol.2002 No.0

제올라이트는 미세기공성 aluminosilicate로, 흡착·분리 양이온 교환 등 다양한 특성으로 인하여 흡착제, 엠브레인, 촉매, 항균제, 세제용 빌더 등 여러 형태로 응용되고 있다. 제올라이트의 생성과정은 핵 생성단계와 결정성장 단계로 구분되며 핵의 표면에서 성장이 진행되는 것으로 알려져 있다. 제올라이트 합성에 사용되는 출발물질은 다양하며 nano크기의 입자를 얻기 위해서는 주로 결정성장 억제 역할을 하는 것으로 알려진 tetramethylammonium hydroxide와 같은 물질을 첨가한다. 본 실험에서는 출발물질의 종류와 조성 및 합성조건이 제올라이트 입자 크기에 미치는 영향을 알아보기 위하여 알루미늄원과 실리카원의 종류 및 조성을 달리하면서 FAU형 제올라이트를 수열합성하였으며, XRD, SEM, 입도 분석 등을 통해 결정 화도, 형상, 입도 분포 등을 관찰하고 비교 분석하였다.

목소리 특성 구분에 대한 사운드 A칼라에 관한 연구

김봉영,이은영,배명진 사단법인 인문사회과학기술융합학회 2018 예술인문사회융합멀티미디어논문지 Vol.8 No.2

Man has a different voice. This characteristic of the voice is like a fingerprint that distinguishes the person. Because the characteristics of individuals such as physical structure and lifestyle are different, voices are a characteristic that can distinguish individuals. These different voice characteristics are interested as a means of biometric authentication. On the other hand, it would be hard to distinguish the voices which are very similar among the family members. At this time, the genetic factors work the most role. In this paper, using newly developed sound A color, we tried to compare voice with more intuitive and simpler. The experiment was for 6 male and female voices by using voice frequency band of 0~4 KHz Sound A color and we have done a comparative analysis of the result. As a result of the experiment, it was intuitively understood that even the visual expression of the sound A color is different by the individual voice characteristics, and it can be seen that the sound A color also can be used as an index for discriminating the individual voice characteristics. 사람은 저마다 서로 다른 목소리를 가지고 있다. 이러한 목소리 특성은 마치 지문처럼 그 사람을 구분할 수 있는 특징이 된다. 신체적 구조와 생활습관과 같은 개인 간의 특성이 다르기 때문에 목소리가 개개인을 구분할 수 있는 특성이 되는 것이다. 이러한 서로다른 목소리 특성은 생체인증 수단으로써 관심을 받고 있다. 반면 가족 간에는 목소리가 매우 유사하여 구분하기 어려운 경우가 발생하게 되는데, 이때 유전적인 요인이 가장 크게 작용한다. 본 논문에서는 최근 새로이 연구되고 있는 사운드 A칼라를 이용하여 좀더 직관적이고 좀 더 간단한 목소리 비교를 시도하였다. 실험은 남녀 6인의 목소리에 대하여 0~4 KHz의 음성주파수 대역을 사운드 A칼라로 표현하여 그 결과를 비교분석 하였다. 실험을 진행한 결과, 사운드 A칼라의 시각적인 표현만으로도 개인별 목소리 특성에 차이가 있음을 직관적으로 알 수 있었으며, 사운드 A칼라가 개인별 목소리 특성을 구분할 수 있는 지표로도 활용 가능함을 알 수 있다.

EFFECT OF CARBONATE ON THE SOLUBILITY OFNEPTUNIUM IN NATURAL GRANITIC GROUNDWATER

김봉영,J. Y. OH,백민훈,윤종일 한국원자력학회 2010 Nuclear Engineering and Technology Vol.42 No.5

This study investigates the solubility of neptunium (Np) in the deep natural groundwater of the Korea Atomic EnergyResearch Institute Underground Research Tunnel (KURT). According to a Pourbaix diagram (pH-Ehdiagram) that wascalculated using the geochemical modeling program PHREEQC 2.0, the redox potential and the carbonate ion concentrationboth control the solubility of neptunium. The carbonate effect becomes pronounced when the total carbonate concentration ishigher than 1.5×10-2M at Eh= -200 mV and the pH value is 10. Given the assumption that the solubility-limiting stablesolid phase is Np(OH)4(am) under the reducing condition relevant to KURT, the soluble neptunium concentrations were inthe range of 1×10-9M to 3×10-9M under natural groundwater conditions. However, the solubility of neptunium, which wascalculated with the formation constants of neptunium complexes selected in an OECD-NEA TDB review, strongly deviatesfrom the value measured in natural groundwater. Thus, it is highly recommended that a prediction of neptunium solubility isbased on the formation constants of ternary Np(IV) hydroxo-carbonato complexes, even though the presence of thosecomplexes is deficient in terms of the characterization of neptunium species. Based on a comparison of the measurementsand calculations of geochemical modeling, the formation constants for the “upper limit” of the Np(IV) hydroxo-carbonatocomplexes, namely Np(OH)y(CO3)z4-y-2z, were appraised as follows: log Kο122= -3.0±0.5 for Np(OH)2(CO3)22-, log Kο131=-5.0±0.5 for Np(OH)3(CO3)-, and log Ko141= -6.0±0.5 for Np(OH)4(CO3)

에이즈 환자에서 발생한 비타민 B12 결핍에 의한 거대 적혈모구 빈혈

김봉영,김지은,황순우,이유화,박정환,문신제,최지영,송준석,정종헌,배현주 대한감염학회 2011 Infection and Chemotherapy Vol.43 No.3

Anemia is the most common hematologic finding in patients with advanced infections caused by human immunodeficiency virus (HIV) or advanced acquired immunodeficiency syndrome (AIDS). Among many etiologies of HIVassociated anemia, vitamin B12 deficiency plays an important role, mostly due to malabsorption or HIV enteropathy. We experienced a case of megaloblastic anemia caused by vitamin B12 deficiency in a male patient with an AIDS who had no structural gastrointestinal problem. He showed severe anemia, leukopenia, thrombocytopenia and suspicious neurologic manifestations such as aggravation of dementia and gait disturbance. With vitamin B12 and folate treatment, the patient’s general condition and hematologic features were improved successfully.

파이로 안전조치시스템 예비개념설계를 위한 시료분석실 요건 개발

김봉영,안성규,박광준,박세환,박근일 한국방사성폐기물학회 2015 한국방사성폐기물학회 학술논문요약집 Vol.13 No.1