사이클 운동 시 흡연유무가 심폐기능에 미치는 영향

김성하,김태훈,노현진,유동진,유현강,천성욱,김지혁 한국지역사회건강관리협회 대한건강과학학회 2023 대한건강과학학회지 Vol.20 No.1

PURPOSE : The purpose of this study was to know of difference in incerase the cardiopulmonary function between smokers and non-smokers when performing cycle exercise for adult male and female smokers and non-smokers. We tried to find out effect on increase in cardiopulmonary function about smoking METHOD : We experimented for 4 weeks and, this study was performed on normal 19 males and 11 females. They were divided into 2 groups which 15 smokers and 15 non-smokers subjects. They performed cycle exercise three times a week for 15minutes. RESULT : There was no significant difference in FVC, FEV-1, FEV-1/FVC%, oxygen saturation in smokers. There was a significant difference in PEF and eats per minute in smokers. There was a significant difference FVC in non-smokers. There was no significant difference FEV-1, FEV-1/FVC%, PEF, oxygen saturation and beats per minute in non-smokers. CONCLUSION : Cardiopulmonary function increased in all smokers and nonsmokers, but there was no significant difference in cardiopulmonary function according to smokers and nonsmokers. However, since the training period is short, more accurate and effective research results can be derived if a sufficient training period is secured and measurement is carried out next time.

뒤통수밑에 발생한 고립성 섬유종 1예

김성하,김학준,박재용,구본석 대한이비인후과학회 2012 대한이비인후과학회지 두경부외과학 Vol.55 No.9

Solitary Fibrous Tumors (SFTs) are uncommon spindle-cell neoplasms usually arising in the pleura of the thoracic cavity. Thirty percent of SFTs are found frequently in the extrapleural locations, but infrequently in the head and neck region, and very rarly in the suboccipital area. The treatment of choice for SFTs is a complete surgical excision of the tumor. Recurrent SFTs are more often associated with incomplete excision. In this article, we present a by surgical excision case of an 87-year-old woman, who was treated for SFT arising in the suboccipital area by surgical excision with no recurrence after 6 months.

Test-retest reliability of EMG measures used to assess postural control in forward and backward lean

김성하,배은경,문수정,배세은,정현수,임현균,이상훈 한국경영과학회 2015 한국경영과학회 학술대회논문집 Vol.2015 No.4

낙상은 생의 모든 주기에 걸쳐 발생하며 특히 노인들에게 발생하는 흔한 사고로서 균형 유지와 밀접하게 연관되어 있다. 본 연구는 균형 유지의 일종인 앞, 뒤 기울이기 자세에서 멀티채널 표면 근전도의 검사-재검사 신뢰도를 평가하고자 한다. 2-30세의 젊은 건강한 남성 임상 대상자 18명을 대상으로 앞, 뒤 기울이기를 실시하였다. 각 동작 전,차려 자세와 최대한 앞으로(또는 뒤로) 기울일 때의 질량 중심을 측정하였고, 최대질량중심 구간의 80-90% 지점을 보조선으로 화면에 표시하였다. 대상자들은 앞으로(또는 뒤로) 기울일 때, 해당 보조선 구간 내에 질량 중심을 위치시키도록 지시되었다. 표면근전도는 하체의 주요한 15개 근육에 부착하였고 Brain motor control assessment 에서 유래한 Response vector를 사용하여 해석하고 표준화 하였다. 신뢰도는 급내 상관 계수 (ICC 혼합 모델,일관성)를 사용하여 평가하였다. 앞으로 기울이기에서 대퇴직근을 제외한 모든 근육에서 중등도 이상의 신뢰도를 보였고, 뒤로 기울이기에서는 대퇴근막 장근을 제외한 모든 근육에서 중등도 이상의 신뢰도를 보였다. 이 결과를 통해 본 프로토콜이 2-30대 건강인의 다채널 표면근전도 측정을 통해 균형능력을 평가하는데 우수한 신뢰도를 갖고 있음을 확인하였으며 향후 여성 및 질환군을 대상으로 한 연구가 추가로 필요할 것이다.

경기도 도시경관사업에서 주체의 역할 및 특성

김성하,황선아 경기연구원 2016 경기개발연구원 기본연구 Vol.- No.-

Landscape is recognized as a key element of the local competitiveness that forms the image and the identity of the area. The “Scenic Conservation Act”, which was enacted in 2007, has implemented, formed and lead to the landscape project, the landscape agreement, a system for the landscape administration and the landscape deliberations. In addition, the subject of the landscape project is not only the administration (Central government and local governments) but also the experts and the local residents. The local residents have the principal role in the sustainable (urban) landscape project and the maintenance of the (urban) landscape, particularly in the activation of the landscape agreement for which they have to sign it. If not, it doesn’t work. It is the (urban) landscape agreement project that could increase the quality of life and promote the sustainable maintenance of the (urban) landscape. In order to increase and extend the landscape agreement project, this study make a few suggestions as follows: First, it is necessary to construct an experts-network. It could continuously support the local residents who would sign the (urban) landscape agreement. Second, it is necessary to train the public official to be an expert on (urban) landscape agreement project. Lastly, Gyeonggi-do could conduct the various projects in order to support and expand the activation of the (urban) landscape agreement : for example, the (urban)-landscape-agreement education for the public officials or the local residents, the business support for the activation of the (urban) landscape agreement, etc.

미시 교통 시뮬레이션을 이용한 주차장 운영분석

김성하,이채린,김태연,김정렬,장선희,이하식,유경상,서원호 한국ITS학회 2023 한국ITS학회 학술대회 Vol.2023 No.4

영남문집해제 : 송강집

김성하 영남대학교 민족문화연구소 1988 민족문화연구소 자료총서 Vol.4 No.-

비용의 조직학적 분류에 따른 만성 비부비동염의 임상적 특징과 IL-33과 IL-25의 발현

김성하,모지훈,정영준,XU JUN,박성제,나기상,김용민 대한비과학회 2015 Journal of rhinology Vol.22 No.1

Background and Objectives:Many kinds of inflammatory cells and cytokines are suggested to be related to the pathophysiology of chronic rhinosinusitis with nasal polyposis (CRSwNP), but not yet fully understood. The objectives of this study were to classify CRSwNP patients according to histologic features and to reveal the roles of IL-33 and IL-25, on the pathophysiology of CRSwNP. Materials and Method:CRSwNP patients (n=122) were divided into 3 groups according to the type of nasal polyp; eosinophilic polyp (EP, n=38), neutrophilic polyp (NeuP, n=15) and non-eosinophilic non-neutrophilic polyp (NENN, n=63) groups. Clinical features and the expressions of IL-25 and IL-33 were evaluated among the groups. Results:The EP group showed many clinical features that were different from the other groups: increased prevalence of asthma and olfactory dysfunction, increased percentage of blood eosinophils, increased E/M ratio, and poor postoperative outcomes such as recurrent polyposis and the need for frequent use of oral steroids. Numbers of IL-33 and IL-25 positive cells were significantly higher in the EP group compared with the other groups in the lamina propria (p=0.001). Conclusion:These results suggest that patients with an eosinophilic polyp are clinically and pathogenetically different from patients with other types of polyps, and IL-25 and IL-33 are associated with the pathogenesis of chronic rhinosinusitis with eosinophilic polyps.

향상된 부 스큐 고속 VCO를 이용한 초고주파 PLL

김성하,김삼동,황인석,Kim, Sung-Ha,Kim, Sam-Dong,Hwang, In-Seok 대한전자공학회 2005 電子工學會論文誌-SC (System and control) Vol.42 No.6

PLL은 통신을 포함한 여러 분야에서 광범위 하게 사용된다. 본 논문에서는 향상된 부스큐 지연 방식을 이용한 고속 VCO와 이를 이용한 PLL을 제안하였다. 제안한 VCO와 PLL은 0.18um CMOS 공정을 기본으로 하여 1.8V의 전원전압에서 동작 하도록 설계되었다. 제안한 VCO는 서브 피드백 루프를 패스 트랜지스터로 설계 하였으며, 이 패스 트랜지스터는 NMOS PMOS가 사용되어서 주파수 이득이 반대인 2개의 주파수 제어전압이 필요하게 되며, 이로 인해 우수한 잡음 성능을 가지게 된다. 또한, 이 서브 피드백 루프와 부 스큐 지연방식은 보다 높은 주파수를 생성하게 된다. 실제 제안한 회로의 검증을 위하여 7단의 링 구성의 VCO를 설계하였으며, 설계된 VCO는 $3.2GHz\~6.3GHz$로 동작하며, 1MHz 오프셋 주파수에서 -128.8dBc/Hz의 위상잡음성능을 가짐을 검증 하였다. 이때의 전원 전압은 1.8V이며 VCO의 소비 전류는 3.8mA이다. 그리고 제안한 VCO를 이용하여 설계된 이중 루프 필터 구조의 PLL이 5GHz 대역에서 안정적으로 동작함을 검증하였다. 따라서, 제안한 VCO가 고주파 대역읜 통신기기에서 LC 공진회로를 대체 할 수 있음을 보였다. 본 논문에서 제안한 회로는 0.18um TSMC 라이브러리를 기본으로 하여 설계 하였다. PLLs have been widely used for many applications including communication systems. This paper presents a VCO with an improved negative skewed delay scheme and a PLL using this VCO. The proposed VCO and PLL are intended for replacing traditional LC oscillators and PLLs used in communication systems and other applications. The circuit designs of the VCO and PLL are based on 0.18um CMOS technology with 1.8V supply voltage. The proposed VCO employs subfeedback loops using pass-transistors and needs two opposite control voltages for the pass transistors. The subfeedback loops speed up oscillation depending on the control voltages and thus provide a high oscillation frequency. The two voltage controls have opposite frequency gain characteristics and result in low phase-noise. The 7-stage VCO in 0.18um CMOS technology operates from $3.2GHz\~6.3GHz$ with phase noise of about -128.8 dBc/Hz at 1MHz frequency onset. For 1.8V supply voltage, the current consumption is about 3.8mA. The proposed PLL has dual loop-filters for the proposed VCO. The PLL is operated at 5GHz with 1.8V supply voltage. These results indicate that the proposed VCO can be used for radio frequency operations replacing LC oscillators. The circuits have been designed and simulated using 0.18um TSMC library.

한의 진료기반연구망을 활용한 전향적 환자등록연구의 고려사항 고찰

김성하 한약정보연구회 2023 한약정보연구회지 Vol.11 No.2

This study reviewed considerations during the conduct of prospective registry studies in Korean Medicinal Practice Based Research Network (PBRN). We reviewed the recent four prospective registry studies with Korean Medicine Doctors (KMDs) in primary clinics. The findings were categorized into planning, execution, management, and completion stages. In planning stage, research purpose, outcome selection, recruitment, and identification of KMDs’ needs should be considered. In execution stage, consent and case report form, measurement cycle, and education should be considered. In the management stage, monitoring, co-researchers management, and incentives should be considered. Even at the completion stage, researchers should consider how to give benefits to KMDs. The major challenges included how to raise enthusiasm among KMDs toward research, education of KMDs, and communication with monitoring agent. From the considerations from the conduct of prospective registry studies in PBRN, future studies may become more accessible to KMDs, and participation and compliance to studies would be increased.

Introduction of Korea Institute of Oriental Medicine’s KOrean medicine case REport program

김성하 대한침구의학회 2020 대한침구의학회지 Vol.37 No.4

Several modalities that have been used in Korean medicine have not undergone evaluation. The Korea Institute of Oriental Medicine (KIOM), a South Korean national research agency, launched the Korean medicine case Report (KORE) program in May 2019 to promote case reports, especially among clinicians. The aim was to (1) introduce the KIOM-initiated KORE program, (2) report the results from the KORE program, and (3) present the challenges and limitation from the KORE program. We conducted a narrative review of the cases to which KORE was applied. A total of 16 proposals were reviewed since May 2019. Five proposals were rejected, and 7 case reports were included. Case reports for 3 therapies have been created under guidance. The KORE program makes it easier for Korean medicine doctors to initiate and complete case reports.