후이개 종물로 발현된 측두골 골종

박용호,구본석,박찬일,박용호,김용민 대한이비인후과학회 2005 대한이비인후과학회지 두경부외과학 Vol.48 No.10

Osteomas in the head and neck regions are uncommon benign lesions and usually found in the front ethmoid area. Temporal bone osteoma is an extremely rare entity. When it is located in the temporal bone, it may cause various symptoms such as hearing loss, tinnitus, vertigo, facial palsy and cosmetic deformities such as auricular protrusion and external mass. We report, with a short review of the relative literature, a case of large osteoma that originated from a squamomastoid portion of the temporal bone in a female patient of 20 years old.

홀리스틱 교육의 관점에서 살펴본 일터에서의 일-생활 균형(work-life balance)

박용호 한국홀리스틱융합교육학회 2015 홀리스틱융합교육연구 Vol.19 No.1

이 연구는 홀리스틱 교육의 입장에서 일-생활 균형(work-life balance)과 이에 영향을 미치는 요인들 사이의 관계를 설명하고자 한다. 구체적으로 이 연구에서는 일-생활 균형에 영향을 미치는 동료들의 지원이나 가족구성원들의 지원, 그리고 주관적인 경력성공에 대한 인식의 영향관계를 살펴보고자 한다. 그리고 이러한 독립변인들의 영향이 직급에 따라 다를 수 있다는 가정에 기초하여 이러한 영향관계를 관리자직급에 속하는 연구 참여자들과 그렇지 않은 참여자들로 구분하여 결과를 비교하였다. 이를 위해 네 변인 사이의 관계를 기초로 한 연구모형이 도출되었으며, 일차적으로 각 변인들에 대한 기술통계분석과 변인들 사이의 상관관계 분석이 실시되었다. 또한 위계적 회귀분석을 통해 독립변인이 종속변인에 영향을 확인하고자 하였다. 일차적으로 연구결과를 통해 연구 변인 사이에는 모두 통계적으로 유의미한 상관관계가 존재한다는 사실이 밝혀졌다. 전체 연구 참여자들을 대상으로 도출된 회귀분석의 결과는 모든 독립변인들이 일-생활 균형에 통계적으로 긍정적이고 유의미한 영향력을 가지고 있다는 사실을 확인시켜 주었다. 전체 대상으로 분석한 결과와 동일하게 각 집단마다 대부분의 영향력은 동료지원변수에서 확인되는 것으로 파악되었다. 사원/대리급에서는 주관적 경력성공이, 관리자급에서는 가족구성원지원 변수가 동료지원과 함께 통계적으로 유의미한 변수임을 확인시켜 주었다. 이러한 연구결과에 기반하여 홀리스틱 교육의 입장에서 실천적·이론적 시사점이 도출되고 제시되었다. The purpose of this study is to investigate the effect of coworker support, family member support, and subjective career success on the work-life balance(WLB). Also, this study aims to find the difference between team member and managerial employees on the relationship of the independent and dependent variables. Because the life roles of the research participants may different based on the life stage, this analysis from two groups. The results showed the statistically significant correlations among research variables. From the results of regression analyses, the statistically significant positive effect of independents variables on work-life balance. Regarding the defference between two groups(team members and managerial employees, the slight difference has been found. Specifically, the effects of cowork support has been identified. This effect is the major influence of individual variables. In the team member group, the subjective career success was the other statistically significant variable in the final regression model. In the managerial position group, the famaily member support was significant variable. Based on the study foundation, both theoretical and practical implications were presented. Also, the suggestions for future study were provided.

가스온풍기용 가스버너의 설계 및 개발에 관한 연구

박용호,염만오,심성훈,엄기훈 한국마린엔지니어링학회 1994 한국마린엔지니어링학회지 Vol.18 No.4

The purpose of this study is to modify the kerosene furnace, which is forced flue type with 15000kcal capacity, to gas furnace satisfying for CITY gas, LNG gas and LPG gas. The gas furnace, a kind of gas appliance, is mainly used for heating houses by combusion of gas. This paper describes briefly the design technology for gas burner which is most important in replacing kerosene fuel with gas fuel. Especially, the design for gas nozzle is constructed by theoretical and experimental method. It is found that the experimental results of the modified gas burner are good agreement with the theoretical results for calorific value and combustion efficiency. The result of this study will contribute in the design skill and of gas burner and similar gas appliance, and the pursuit for reduction of fuel cost as well as atmospheric pollution.

유체커플링의 토오크 특성과 효율에 관한 실험적 연구

박용호,염만오 한국마린엔지니어링학회 1994 한국마린엔지니어링학회지 Vol.18 No.5

The purpose of this research is to construct experimental test set-up and to establish a series of performance test program for the domestically developed hydraulic couplings, and to provide a software to store and utilize these experimental data which can be used to improve the performance of the hydraulic coupling and solve the job problems confronted during operation. The performance test consists of measurement of torque, rpm and efficiency of the hydraulic coupling for three different amounts of working fluid with various loads to the output shaft, and investigating the torque, rpm and efficiency characteristics with respect to these parameters. The results of this study can contribute to the development of variable speed hydraulic coupling and torque converter pursued by the domestic industry.

Cochlear Damage Caused by the Striking Noise of Titanium Head Golf Driver

박용호,정주용,이민영,이도영,김영호 대한이비인후과학회 2019 Clinical and Experimental Otorhinolaryngology Vol.12 No.1

Objectives. To investigate how mouse cochleae are affected by the striking noise of titanium head golf driver. Methods. Thirty-two BALB/c mice (20–22 g) with normal hearing were used. The impact acoustic stimulus generated by the striking of titanium golf driver head was centered around 4.5 kHz with 120.5 dB sound pressure level. The recorded impact noise was provided to mice in two ways with the same exposure time of 288 seconds: 1,440 repetitions and an impact duration of 0.2 seconds for 2 hours (repetitive noise) or serially connected impact noise for 288 seconds (continuous noise). Auditory brainstem responses were measured at baseline, day 7, and day 14 after exposure. The mice were then sacrificed for histology. Results. Both groups showed statistically significant threshold shifts immediately after noise exposure. Mice in the continuous exposure group, except for those exposed to 32 kHz noise, recovered from threshold shifts 1–2 weeks after noise exposure. However, in the repetitive exposure group, threshold shifts remained for 2 weeks after exposure. The repetitive exposure group had greater hair cell damage than did the continuous exposure group. Structural changes in the stria vascularis were observed in the repetitive exposure group. Conclusion. Overexposure to impact noise caused by hitting of titanium head golf driver may be hazardous to the cochlea, and repetitive exposure may induce greater damage than continuous exposure.

제올라이트 촉매를 이용한 야생 갈대와 폐플라스틱의 혼합열분해 연구

박용호,박성훈 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.0

HY(5.1), HZSM-5(23)와 HZSM-5(280) 촉매를 이용하여 갈대와 폐플라스틱의 혼합열분해연구를 수행하였다. 갈대의 촉매 열분해는 무촉매 열분해와 비교하면 가스 생성물(CO, CO2, C1-C4)이 증가되었다. 이는 오일 내의 함산소화합물이 탈산소화 되어 CO및 CO2로 생성된 경향이 나타났으며, 바이오오일의 cracking 된 성분이 C1-C4 탄화수소 성분으로 나타난 결과로 보인다. 그래서 수율 실험 결과 모두 오일과 촤의 양이 감소하고 가스의 양이 증가하는 경향을 보였다. 반면 갈대와 폐플라스틱의 혼합열분해에서는 촤와 가스의 양이 감소하고 오일의 양이 증가하였다. 갈대만의 촉매 열분해에서는 주생성물은 함산소화합물과 페놀이지만, 갈대와 폐플라스틱 혼합열분해는 함산소화합물과 산을 꽤 감소시키고, 폐플라스틱의 풍부한 탄소와 수소 제공으로 인해 지방족 및 방향족 탄화수소의 생성을 크게 증가시켰다. 갈대와 폐플라스틱 혼합열분해는 수분량을 감소시켜 바이오오일의 질을 향상시키는데 기여했다.

탄산탈수효소억제제들이 부갑상선 호르몬에 의한 골흡수에 미치는 영향에 관한 연구.

박용호,김관식,정동균 서울大學校 齒科大學 1988 齒大 論文集 Vol.12 No.2

韓國人胎兒 腦下垂體에 關한 硏究 : 1. 形態統計學的 觀察 1. Quantitative Observations

朴容虎 서울의대 1963 서울의대잡지 Vol.4 No.1

DNA chip을 이용한 조각자 추출물의 인간유래 악성 종양에 미치는 영향

박용호,김종한,박수연,최정화,Park, Yong-Ho,Kim, Jong-Han,Park, Su-Yeon,Choi, Jeong-Hwa 대한한방안이비인후피부과학회 2008 한방안이비인후피부과학회지 Vol.21 No.1

Objective : This study was designed to investigated effects of Gleditsia spina (GS) on human derived melanoma cells Methods : The genetic profile for the effect of medicine on human derived melanoma cells of SK-MEL-2, was measured by using microarray technique, and the functional analysis on these genes was conducted. The network of total protein interactions was measured by using cytoscape program. Results : Total 253 genes were up-regulated and 439 genes down-regulated in cells treated with GS. Genes induced or suppressed by GS were all mainly concerned with metabolic process, regulation of biological process and protein binding. Conclusion : Suggest the possibility of GS as anti-cancer drug and cosmetic agent, and also suggest that related mechanisms are involved in regulation of intra-cellular metabolism in melanoma cells.

HOT ISSUE - 사료첨가항생제 사용금지에 따른 전망

박용호,Park, Yong-Ho 한국사료협회 2009 飼料 Vol.39 No.-