GPS를 이용한 기준점 측량의 좌표조정에 관한 연구

고영호 경남대학교 신소재연구소 1996 論文集 Vol.6 No.-

GPS를 이용하여 상대적 위치를 구하고 효율적인 3차원 좌표 변환과 망조정 방법을 소개하였으며 소규모 국내자료와 비교 검토코져 하였다. 지금까지 사용하고 있는 Kang의 국내 방식과 TDVC 방식 비교에서 3차원 좌표 성과의 정도가 거의 비슷하였다. The application of GPS(Globa1 Positioning System) was introduced in this study. The calculation method of relative positions. effective transformation of three dimensional coordinates. and network adjustment in GPS were explained. A comparison was made between Kang's conventional survey measurements and TDVC(Three Dimentioal Variation of Coordinates) measurements using actual observations. The comparison results indicated little difference in their precison.

마산,진해灣의 平均海面에 關한 硏究

高英豪 慶南大學校 附設 工業技術硏究所 1989 硏究論文集 Vol.7 No.-

馬山 鎭海灣의 3回에 걸친 平均海面觀察에 의하면 平均海面의 年較差는 약 10-20cm였다. 또한 馬山灣의 平均海面은 基本水準面上 107.4cm였다. 이는 主로 大氣壓과 海水密度, 河川流出因子 그리고 또다른 港灣工事들에 起因한 것으로 본다. 馬山灣의 潮汐型態數는 0.12로서 日潮不等은 대단히 적다. By the three times observation of mean sea level at the Masan-Chinhae Bay, the annual range of mean sea level was about 10-20cm. And the mean sea level of Masan Bay was 107.4cm above the datum level. We can see it was mainly due to the barometric effect, the steric departure, the run-off river factor, and the other harbour constructions. The type of tide ratio at the Masan Bay was +0.12, and we can see the diurnal inequality was very small.

음향 측심기에 의한 수심 측량 연구

고영호 慶南大學校 附設 工業技術硏究所 1993 硏究論文集 Vol.11 No.-

음향측심은 음파를 발사하여 되돌아온 시간으로서 수심을 측정하는 측심 방법(測深方法)이다. 본 측략의 측심은 정밀한 전파 위치 시스템으로 측정된 측심선을 따라 균일한 간격점으로 부터 얻어졌다. 본 수심측량은 PS-20R 음향측심기에 의해 마산만에서 실측되었다. 본 여구의 궁극적인 목표는 해저의 수심을 얻기위한 여러가지 조건을 탐사하는데 있다. The Echo Sounding is means of determining the depth of water by the use of time of echo traveling in sea water. In this survey, the soundings were taken from every equally spaced positions along the sounding line which fixed by accurate electronic fixing system. Bathymetric Survey was conducted in the Masan Bay by Echo Sounder PS-20R. The objective of this initial study is to investigate several conditions in the sea floor depth.

下水處理 方法選定에 관한 硏究

高英豪,金勇熙,全裕燦 慶南大學校 附設 工業技術硏究所 1987 硏究論文集 Vol.5 No.-

본 연구는 하수 처리방법에 있어 각 처리방법별, 처리수량별 부지 면적과 건설비, 유지 관리비에 대한 보다 효율적이고 경제적인 하수 처리방법 선정에 도움이 되고자 함이 본 연구의 목적이다. 결론을 요약하면 다음과 같다. 1. 부지 면적의 경우, 생물막여과법이 처리수량에 관계없이 타 방법에 비해 가장 경제적이다. 2. 건설비의 경우, 처리수량이 500m³/day에서는 산화구법, 회전원판법, 생물막여과법이 경제적이고, 생물막여과법의 경제적 처리 범위는 5,000m³/day이하이다. 3. 유지관리비의 경우, 표준 활성오니법에 비해 회분식 활성 오니법, 접촉 폭기법, 생물막여과법이 유지 관리에 유리하며, 8,000m³/day 경우 접촉 폭기법이 가장 유리하다. This study is aimed at finding efficient sewage treatment method of various systems and capacities, areas for sewage treatment, construction costs, maintenance costs. Conclusions are followed as below; 1. In the case of area for sewage treatment, biological aerated filter system is concluded as economical method. 2. In the case of construction cost, 500m³/day treatment amount, oxidation ditch process, rotating biological contactors, biological aerated filter system are regarded as efficient method. 3. In the case of maintenance cost, sequencing batch reactors, submerged filter process, biological aerated filter system require less cost than conventional activated sludge process.

大縮尺化에 따른 平板測量의 許容方向線에 對한 硏究

高英豪 慶南大學校 附設 工業技術硏究所 1986 硏究論文集 Vol.4 No.-

平板測量은 航空寫眞測量 다음으로 地形測量을 위해서는 가장 普遍的으로 使用되는 좋은 方法이다. 이 方法은 野帳없이 現地에서 直接圖化할 수 있는 有一한 수단인 것이다. 圖化하는데에는 縮尺은 漸進的으로 決定되어야 한다. 今後 平板測量의 縮尺은 小縮尺에서 大縮尺으로 變해 가고 있다. 本論文에서는 Alidade를 使用 大縮尺을 對備한 平板測量에서의 許容方向線의 길이에 대하여 硏究되었다. 大縮尺圖에 따르는 許容方向線의 새로운 定義에 대한 器具固有의 定誤差에 대하여 연구되었다. The Plane-table Survey which is being used usually now is the best Method for a topographical survey, next to Photogrammetry. This is the only means of mapping without notes in the field. In mapping, the scale must be decided in advance. We know that the scale of Plane-table Survey is changing from a small scale to a large scale. And then, this paper is about the study of the allowable length of direction and the study of the new definition of the allowable length of direction at the Plane-table Survey with a large scale using Alidade and the study constant-error occurs in the machine.

음식점 비흡연 종업원의 간접흡연 노출량 지표로써 이산화질소 이용

양원호,고영림,한인규,이정민,정문식,정문호 대한위생학회 2000 대한환경위생공학회지 Vol.15 No.3

There, is increasing evidence suggesting that passive smoking increases the risk of lung cancer and other disease. though the potential health effects of exposure to environmental tobacco smoke (ETS) is a controversial subject. Since smoking in restaurant is prevalent in Korea. The concern on passive smoking exposure of non smoking service workers has been. requested. ETS exposure of non smoking service workers at restaurant was assessed because they have spent their times in restaurant indoors. The purpose of this study was feasibility of nitrogen dioxide(NO_(2))as exposure marker of ETS. The results of the study were as follows: 1. Average NO_(2), concentrations in indoor and outdoor at restaurants were 57.01ppb(±12.4) and 54.29ppb(±9.54), respectively. Comparing office-workers, service-workers at restaurants were exposured highly. 2. The personal NO_(2) measurement as exposure marker of ETS could cause The exposure error because NO_(2) can he generated by combustion appliances in indoor. 3. Service-workers spent their most time (86.6%) in indoor. Mean time spent at restaurant indoors and at home was 9.4 hours and 10.9 hours. respectively. 4. Personal NO_(2) levels correlated with indoor NO_(2) concentrations of restaurant (r=0.70) and of their home (r= 0.52) rather than of outdoor NO_(2) concentration of restaurant (r=0.35). The causes of personal NO_(2) exposure of non-smoking service-workers were considered as smoking of guests and combustion appliance indoors. 5. Personal NO_(2) exposures were estimated using Monte-Carlo simulation and time-weighted model. Estimated personal NO_(2) level was 47.2ppb (±8.3).

사물 통신 기반 스마트 락커 시스템 구현을 위한 무선 전송 성능 분석

임호영(Ho-young Lim),고성재(Sung-Jae Kho),한성현(Sung-Hyun Han),김새미나(Saemina Kim),김동영(Dong-young Kim),홍윤식(Youn-Sik Hong),장욱진(Wook-jin Jang) 한국통신학회 2015 한국통신학회 학술대회논문집 Vol.2015 No.1

Basic phenotyping platform for genetically engineered mouse at KRIBB

Hae Rim Kim,Eun Kyoung Kim,Yong Sub Byun,Kang Ju Seong,Ju Young Lee,Yu Rim Kim,Min Young Lee,Sang Mi Cho,Taek Chang Lee,Hae Jin Lee,Young Ho Kho,Ok Seong Moon,Young Won Seo,Ki Hoon Lee,Hoyoung Ghang,W 한국실험동물학회 2015 한국실험동물학회 학술발표대회 논문집 Vol.2015 No.8

Melatonin in the colon modulates intestinal microbiota in response to stress and sleep deprivation

( Young Sook Park ),( Soo Hyung Kim ),( Jong Won Park ),( Younglim Kho ),( Pu Rum Seok ),( Jae-ho Shin ),( Yoon Ji Choi ),( Jin-hyun Jun ),( Hee Chan Jung ),( Eun Kyung Kim ) 대한장연구학회 2020 Intestinal Research Vol.18 No.3

Background/Aims: Stress is closely related to the deterioration of digestive disease. Melatonin has potent anti-inflammatory properties. The objective of this study was to determine the effect of water stress (WS) and sleep deprivation (SD) on intestinal microbiota and roles of melatonin in stressful condition. Methods: We used C57BL/6 mice and specially designed water bath for stress and SD for 10 days. We measured melatonin concentrations in serum, feces, and colon tissues by high-performance liquid chromatography. Genomic DNA was extracted from feces and amplified using primers targeting V3 to V4 regions of bacterial 16S ribosomal RNA genes. Results: Compared to the control, melatonin concentration was lower in the WS and SD. Fecal concentration was 0.132 pg/mL in control, 0.062 pg/mL in WS, and 0.068 pg/mL in SD. In colon tissue, it was 0.45 pg/mL in control, 0.007 pg/mL in WS, and 0.03 pg/mL in SD. After melatonin treatment, melatonin concentrations in feces and colon tissue were recovered to the level of control. Metagenomic analysis of microbiota showed abundance in colitogenic microbiota in WS and SD. Melatonin injection attenuated this harmful effect. WS and SD showed decreased Lactobacillales and increased Erysipelotrichales and Enterobacteriales. Melatonin treatment increased Akkermansia muciniphila and Lactobacillus and decreased Bacteroides massiliensis and Erysipelotrichaceae. Conclusions: This study showed that stress and SD could affect intestinal dysbiosis and increase colitogenic microbiota, which could contribute to the aggravating digestive disease. Melatonin concentrations in feces and colon tissue decreased under WS and SD. Melatonin treatment brought recovery of melatonin concentration in colon tissue and modulating dysbiosis of intestinal microbiota. (Intest Res 2020;18:325-336)

Acute Effects of Tobacco and Non-fobacco Cigarette Smoking on fhe Blood Pressure and Heart Beat Rate

Young Lim Kho,Sang Gu Lee,Moon Ho Chung 한국환경보건학회 2003 한국환경보건학회 학술대회 자료집 Vol.2003 No.-