고온환경하의 조깅시 수분섭취량의 적정수준에 관한 연구

강덕호 순천향대학교 기초과학연구소 1997 순천향자연과학연구 논문집 Vol.3 No.2

The purpose of this investigation was to examine the optimal level of water intake during jogging in hot environment. The subjects were five college students carried out 60 minutes' jogging on the treadmill under five conditions (no-drinking, free-drinking, 30㎖-drinking, 45㎖-drinking, 70㎖-drinking/10min). The major results were as follows. 1. Rectal temperature increased significantly with body weight loss (r²=0.56). 2. Body weight loss was negatively correlated with the amount of water intake, showing significantly less at 70㎖-drinking in comparision with 30㎖-drinking and 45㎖-drinking as well as no-drinking or free-drinking (p<0.05). 3. There were no significant difference among 1083g (no-drinking), 1080g (free-drinking), 1055g (30㎖-drinking), 1053g (45㎖-drinking) and 1030g (70㎖-drinking) in sweat rate. 4. The order of subjects' preference of water intake is 45㎖>30㎖>70㎖>free-drinking>no-drinking. These results suggest that water intake during jogging in hot environment has physiological significance in the maintenance of body fluid, and a physical effect in terms of body cooling. Therefore, we can conclude that water intake after exercise is strongly recommended because the subjects prefer to take less water than sweat rate during exercise.

`09년 4월 해외 가축전염병 발생현황 등 정보동향

강덕호,Gang, Deok-Ho 대한수의사회 2009 대한수의사회지 Vol.45 No.5

서낙동강 시험유역에서의 SWAT 모형을 이용한 수문 운영에 따른 연속유출 및 수질변화 예측

강덕호,김정민,김태원,김영도 한국습지학회 2012 한국습지학회지 Vol.14 No.1

서낙동강 유역의 대부분은 농경지와 임야로 이루어져 있으며, 서낙동강은 상하류에 위치한 수문으로 인해 자연적인 하천흐름이 원활하지 않은 정체수역으로서 비점오염원등의 오염원으로 인해 수질이 점점 악화되고 있는 실정이다. 본 연구에서는 SWAT(Soil and Water Assessment Tool) 모형을 이용하여 수문운영에 따른 서낙동강의 유량과 수질 거동을 모의하였다. SWAT 모형을 검보정하기 위하여 2006년에서 2007년까지 서낙동강 주요 지류의 5개의 수위관측소 지점에서 유량 및 수질을 측정하였다. 민감도 분석을 수행한 이후에 유량과 수질의 보정 결과로 R2값은 각각 0.86과 0.70으로 나타났다. 검증기간에서의 R2값은 각각 0.81과 0.51로 나타났다. 수문 운영에 따른 수질모의 결과, 수문개방시 BOD 농도는 감소하는 경향을 보였으며, TN과 TP도 BOD와 유사한 경향을 보였다. 본 연구에서는 유역단위의 시공간적인 수문 및 수질 모의가 가능한 SWAT 모형을 사용하여 서낙동강의 수질관리를 위한 수문 운영 기법을 검토하였으며, 이를 활용하여 수문 운영자는 갈수기 수질향상을 위한 최적의 유입량 및 방류량을 결정할 수 있을 것으로 판단된다.

`09년 3월 해외 가축질병 발생현황 등 정보동향

강덕호,Gang, Deok-Ho 대한수의사회 2009 대한수의사회지 Vol.45 No.4

조만강 유역의 오염물질 거동 예측을 위한 SWAT 모형의 매개변수 민감도 분석

강덕호,김태원,김영도,권재현,Kang,Deok-Ho,Kim,Tae-Won,Kim,Young-Do,Kwon,Jae-Hyun 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1

SWAT(Soil and Water Assesment Tool) 모형은 장기간에 걸친 토양과 토지이용 및 관리 상태에 따라 복잡하게 반응한 대규모 유역의 물과 토사유출 및 농업화학물질로 인해 실제 토지관리가 수환경에 끼치는 영향을 예측하기 위하여 개발되었다. 일반적으로 하천은 유역의 개발 정도에 따라 도시하천과 자연하천으로 나뉘며 도시하천의 경우 도시화가 진행됨에 따라 토지이용상태 및 토지피복상태의 변화로 불투수면적이 증가함에 따라 도시하천의 건천화가 급속도로 진행된다. 본 연구에서는 장기유출모의가 가능한 SWAT 모형을 이용하여 도시하천의 유출량을 모의하고 특히 유역의 규모가 작은 소유역의 SWAT 모형의 적용성을 제시하고자 한다. GIS와 연계한 SWAT 모형을 이용하여 조만강 유역을 모의하였고, 모형의 민감도 분석을 통해 매개변수를 최적화시킴으로서 모델의 신뢰도를 평가하고자 하였다. The SWAT(Soil and Water Assesment Tool) is a relatively large scale model for the complicated watershed or river basin. The model was developed to predict the effect of land management practices on water, sediment and agricultural chemical yields in large complex watershed with varying soils, land use and management conditions over long periods of time. Usually streams are divided into urban stream and natural stream in accordance with the development level. In case of urban stream, according to urbanization, as impermeable areas are increasing due to the change of land use condition and land cover condition, dry stream phenomenon at urban stream is rapidly progressed. In this study, long term run-off simulations in urban stream are performed by using SWAT model. Especially, the model is applied in small scale water shed, Joman River basin. The optimization by the sensitivity analysis is also performed for the model parameter estimations.

고온환경하의 조깅시 수분섭취의 유무에 따른 직장온 변화의 차이점

강덕호 순천향대학교 기초과학연구소 1997 순천향자연과학연구 논문집 Vol.3 No.1

The purpose of this investigation was to examine the relationship among changes in rectal temperature, body weight loss, and differential water intake in hot environment. The subjects were five college students carried out 60 minutes' jogging on the treadmill under three conditions (no-drinking, free-drinking, 70㎖-drinking/10min). The major results were as follows. 1. Rectal temperature increased significantly with body weight loss (r²=0.64). 2. Body weight loss was negatively correlated with the amount of water intake, showing significantly less at 70㎖-drinking in comparision with no-drinking or free-drinking (p<0.05). 3. There were no significant difference among 1083g (no-drinking), 1080g(free-drinking), and 1030g(70㎖-drinking) in sweat rate. These results suggest that water intake during jogging in hot environment has physiological significance in the maintenance of body fluid, and a physical effect in terms of body cooling. Therefore, it needs water intake in order to prevent thermal dehydration, and optimal amount of water intake should be studied in the future.

집중탐구 - AI예방통제센터

강덕호,Gang, Deok-Ho 한국오리협회 2015 오리마을 Vol.148 No.-

고온환경하의 조깅시 섭취수분의 온도차에 따른 체온냉각 효과의 비교

강덕호 순천향대학교 기초과학연구소 1998 순천향자연과학연구 논문집 Vol.4 No.1

This study examines sweat rate and body cooling effect as the temperature of water intake varies during jogging in hot environment. The subjects are five ordinary males carried out 30 minutes jogging on the treadmill under three different conditions; the first condition is no-drinking, the second and third are to provide with respective 3℃ and 37℃ water of 150㎖ three times per 10 minutes. The major results are as follows. 1. Rectal temperature increases slowly after the beginning of exercise under all conditions and the effect of water intake is insignificant during exercise. But after exercise the intake of 3℃ water returns rectal temperature to normal most rapidly. 2. Sweat rate is about 613g/no-drinking, 390g/3℃ water, and 503g/37℃ water, showing significantly less at 3℃ water intake(p<0.05). 3. Body weight loss is about 613g/no-drinking and 53g/37℃ water. However, 60g of body weight can be gained in 3℃ water intake because of the reduction of sweat rate. The result suggests that cold water intake is most effective during exercise in hot environment. But more research should be done to show the optimal level of cold water intake because cold water can reduce the heat emission of body.

해외 가축질병 발생동향

강덕호,Gang, Deok-Ho 대한수의사회 2009 대한수의사회지 Vol.45 No.3

지하수저류량 평가를 통한 비오톱 유형별 생태계서비스 효과 분석

강덕호,박인환,김진효,이순주,권오성,Kang, Deok-Ho,Park, In-Hwan,Kim, Jin-Hyo,Lee, Soon-Ju,Kwon, Oh-Sung 한국환경복원기술학회 2017 한국환경복원기술학회지 Vol.20 No.5

Recently, due to worldwide industralization and urbanization, natural environment has been severly damaged and global warning is worsening. Heat wave, torrential rainfall, typhoon and other natural disasters continuously occur due to global warming. Policies such as carbon emission regulation are taken into effect to solve such problems. Such global trend has affected interest to natural ecosystem and developed as a concept of ecosystem-services. This study particularly focused on ground water storage capacity among various ecosystem-services such as climate control and soil formation. It is because Korea suffers from drought and flood every year. Therefore, this study aims to understand objective numerical value of ecosystem-services value regarding ground water storage capacity of biotop classes based on relationship among precipitation, amount of evapotranspiration, and runoff of 7 regions of Chilgok-gun, Gyeongsangbuk-do and to convert the value into economic value. The study calculated ground water storage capacity based on relationship among precipitation, amount of evapotranspiration, and run off. Calculated amount of each capacity was 29.26 million ton($30.2mm/m^2$), 430.46 million ton($140.4mm/m^2$), 11.30 million ton($150.1.0mm/m^2$), 33 milion ton($3.0mm/m^2$). Economical value of ecosystem-service by each biotop classes appeared 4,128,800 thousand KRW ($21.32KRW/m^2$) for agricultural biotop, and 60,403,600 thousand KRW ($98.52KRW/m^2$) for forest biotop, 1,572,800 thousand KRW ($104.4KRW/m^2$) for grassland biotop, and 47,600 thousand KRW ($2.18KRW/m^2$) for bare ground biotop. The result of this study like above, it will be used as important evidentiary material to preserve natural resource effectively from various development business and policies that damages natural eco-system. Also, it is judged that ecosystem-service value by each land coverage will be used as important material for preparing legalistic institution such as establishing natural environment preservation plan, budget for alternative forest resource creation cost.