• Title/Summary/Keyword: Time of wetness

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The bibliographical study on the cause and symptom of Seup-Su(濕嗽) (습수(濕嗽)의 원인(原因)과 증상(症狀)에 대(對)한 문헌적(文獻的) 고찰(考察))

  • Oh, Young-Oug;Im, Il-Gyu
    • The Journal of Internal Korean Medicine
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    • v.13 no.1
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    • pp.110-116
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    • 1992
  • This study has been carried out to investigate the cause and symptom of Seup-Su(濕嗽) by referring to 23 literatures. The results were as follows; 1. The factors causing Seup-Su(濕嗽) are divided into 3 groups. The 1st inner factor is lung affected by wetness(濕勝肺). The 2nd outer factors are wetness-evil(濕邪), syndrome caused by summer heat and wetness evils(暑濕), clothe after bath, sit down along the long time, symptoms caused by rain. The 3rd non-innwer and outer factor is the pholegm accumulated. 2. The symptom of Seup-Su(濕嗽) is as follows. arthralgia hidrosis difficulity in micturition pregnancy small tense pulse.

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Unmanned Multi-Sensor based Observation System for Frost Detection - Design, Installation and Test Operation (서리 탐지를 위한 '무인 다중센서 기반의 관측 시스템' 고안, 설치 및 시험 운영)

  • Kim, Suhyun;Lee, Seung-Jae;Son, Seungwon;Cho, Sungsik;Jo, Eunsu;Kim, Kyurang
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.24 no.2
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    • pp.95-114
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    • 2022
  • This study presented the possibility of automatic frost observation and the related image data acquisition through the design and installation of a Multiple-sensor based Frost Observation System (MFOS). The MFOS is composed of an RGB camera, a thermal camera and a leaf wetness sensor, and each device performs complementary roles. Through the test operation of the equipment before the occurrence of frost, the voltage value of the leaf wetness sensor increased when maintaining high relative humidity in the case of no precipitation. In the case of Gapyeong- gun, the high relative humidity was maintained due to the surrounding agricultural waterways, so the voltage value increased significantly. In the RGB camera image, leaf wetness sensor and the surface were not observed before sunrise and after sunset, but were observed for the rest of the time. In the case of precipitation, the voltage value of the leaf wetness sensor rapidly increased during the precipitation period and decreased after the precipitation was terminated. In the RGB camera image, the leaf wetness sensor and surface were observed regardless of the precipitation phenomenon, but the thermal camera image was taken due to the precipitation phenomenon, but the leaf wetness sensor and surface were not observed. Through, where actual frost occurred, it was confirmed that the voltage value of leaf wetness sensor was higher than the range corresponding to frost, but frost was observed on the surface and equipment surface by the RGB camera.

Extraction of Soil Wetness Information and Application to Distribution-Type Rainfall-Runoff Model Utilizing Satellite Image Data and GIS (위성영상자료와 GIS를 활용한 토양함수정보 추출 및 분포형 강우-유출 모형 적용)

  • Lee, Jin-Duk;Lee, Jung-Sik;Hur, Chan-Hoe;Kim, Suk-Dong
    • Journal of Korean Society for Geospatial Information Science
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    • v.19 no.3
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    • pp.23-32
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    • 2011
  • This research uses a distributed model, Vflo which can devide subwater shed into square grids and interpret diverse topographic elements which are obtained through GIS processing. To use the distributed model, soil wetness information was extracted through Tasseled Cap transformation from LANDSAT 7 $ETM^+$ satellite data and then they were applied to each cell of the test area, unlike previous studies in which have applied average soil condition of river basin uniformly regardless of space-difference in subwater shed. As a resut of the research, it was ascertained the spatial change of soil wetness is suited to the distributed model in a subwater shed. In addition, we derived out a relation between soil wetness of image collection time and 10 days-preceded rainfall and improved the feasibility of weights obtained by the relation equation.

Corrosion of Steel and Zinc in Tropics

  • Hue Nguyen Viet;Kwon Sik Chol
    • Journal of the Korean institute of surface engineering
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    • v.36 no.3
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    • pp.272-283
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    • 2003
  • Mild steel and zinc specimens were tested in five atmospheric testing sites of Vietnam in order to collect the corrosion databank as well as to study the corrosion mechanism in tropical conditions, in period of 1997-2000. The results obtained showed that the corrosion rate of steel is in the range of $10-50\;{\mu}m/year$ and of zinc is of $1-5\;{\mu}m/year$. They are interpretable in the comparison with the data obtained in different countries in the South East Asian as well as previous reports of Vietnamese nation project In atmospheric corrosion. The main factors affecting the corrosion in Vietnam tropical conditions are TOW (time of wetness) and salinity. The relationship between sulfur dioxide and corrosion of metals, particularly, zinc was not found clearly. An explanation was suggested about the complex effect of different pieces present in tropical atmosphere and about the alternative of the dominant factors such as humidity, salinity or temperature.

Relative Corrosion Environment Conditions of Steel Box Members Examined by Corrosion Current Measurement (부식전류 평가를 통한 강박스 부재의 상대적 부식환경 평가)

  • Jin, Yong-Hee;Ha, Min-Gyun;Jeong, Young-Soo;Ahn, Jin-Hee
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.24 no.6
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    • pp.171-179
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    • 2020
  • In this study, a local corrosion environment monitoring was conducted using steel box specimen fabricated to be the same as actual steel bridge members. The steel box specimen that obtained the same corrosion environment as a steel bridge was classified into the upper plate, bottom plate and web plate. Atmospheric corrosion monitoring sensors(ACM sensors) were installed in each corrosion monitoring member of a steel box specimen to measure the corrosion current and examine time of wetness for each monitoring member. The time of wetness and accumulated corrosion current of each monitoring member were calculated from the measured corrosion current using ACM sensors. The corrosion environment that appeared for each of the steel box members was evaluated from monitoring corrosion environment data as the corrosion current, time of wetness, mean corrosion depth of each monitoring member. Additionally, the atmospheric corrosion environment monitoring was also conducted to compare with the local corrosion environment of steel box members. From these local corrosion environment monitoring for the steel box specimen, the relationship between the relative corrosion environment and mean corrosion depth of each steel box member was examined.

Estimation of Leaf Wetness Duration Using Empirical Models in Northwestern Costa Rica

  • Kim, K.S.;S.E.Taylor;M.L.Gleason
    • Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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    • 2003.09a
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    • pp.54-57
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    • 2003
  • Implementation of disease-warning systems often results in substantial reduction of spray frequency (Lorente et al., 2000; Madden et al., 2000). This change reduces the burden of pesticide sprays on the environment and can also delay the development of fungicide and bactericide resistance. To assess the risk of outbreaks of many foliar diseases, it is important to quantify leaf wetness duration(LWD) since activities of foliar pathogen depend on the presence of free water on host crop surface for sufficient periods of time to allow infection to occur.(omitted)

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A Study on the Deck Wetness of the FPSO (원유 생산.저장.하역선의 갑판침수에 관한 연구)

  • 임춘규;이호영
    • Journal of the Society of Naval Architects of Korea
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    • v.41 no.1
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    • pp.8-14
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    • 2004
  • As the number of offshore structure is glowing in deep waters, there have been increased damages of it. These floating structures in offshore locations exposed to harsh environmental conditions. In recent years, there has been a slowing attention around damages on bow and deck on FPSO caused by waves in steep storm condition. This paper describes a study of the water on deck due to the dynamic behavior of a FPSO with turret mooring system. The nonlinear motions of the FPSO are simulated under external forces due to wave, current, wind, and mooring forces in the time domain. The direct integration method is employed to estimate low frequency drift wave forces. The current forces are calculated by using slow motion maneuvering equations in the horizontal plane. The coefficients of a model for wind forces are calculated from Isherwood's experimental data and the variation of wind speed is estimated by wind spectrum according to the guidelines of API-RP2A.

Trend Analysis of Wetness/Dryness in Geum River Basin (금강유역의 습윤/건조 상태에 대한 경향성 분석)

  • Kim, Joo-Cheol;Lee, Sang-Jin;Hwang, Man-Ha;Ahn, Jung-Min
    • Proceedings of the Korea Water Resources Association Conference
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    • 2010.05a
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    • pp.1640-1644
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    • 2010
  • In this study the wetness/dryness in Geum river basin are classified by dint of cumulative probability density function of monthly moisture index and the long term changes of them are analyzed based on climatic water balance concept. The drought events in Geum river basin are selected through evaluation of monthly moisture index and the various hydrological properties of them are investigated in detail. Also the trends of time-series of climatic water balance components are examined by Seasonal Kendall test and the variability of hydrological cycle in Geum river basin during the recent decade is inquired. It is judged that the results of this study can be contributed to establishment of the counter plan against the future drought events as the fundamental information.

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Assessment of Atmospheric Corrosivity at Jeju Island (제주도 대기환경의 부식성 평가)

  • KIM GUI-SHIK;YANG KYEONG-CHO;HU CHUL-GOO;SONG JEONG-HWA
    • Journal of Ocean Engineering and Technology
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    • v.19 no.5 s.66
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    • pp.50-57
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    • 2005
  • This study has been conducted to investigate corrosivity of carbon steel, Cu, Zn and Al for one year from Sept. 2003 to Aug. 2004. A model of ISO 9223-ISO 9226 that represents the relation between metal corrosions and environmental parameters was used for atmospheric corrosion evaluations. Environmental parameters for these evaluations are time of wetness(TOW), $SO_2$ and Chloride. Corrosion rates for four metals which are exposed indoors and outdoors were measured on five locations in Jeju Island; Gosan, Seogwipo, Seongsan, Chuna hill and Jeju city. The environmental factor of atmospheric corrosion of Jeju Island for $SO_2$ class is P0, a clean area. TOW as T3 and T4 indicates that Jeju has the characteristics of a tropical area. Chlorides class within 3 km from the coast show the features of costal area as S2 and S3 classes. Chuna hill show the features of woodland as a S1 class. In Corrosion classes of each site which was measured outdoors is higher than indoors. Gosan is the highest class as the rank of C5, and indicated that they're ranked as C3 or C4.

Studies on the Effects of Danggieum and Ijintang on Thrombosis and Elevated Blood Viscosity (혈전증(血栓症) 및 고점도혈증(高粘度血症)에 대(對)한 당귀음(當歸飮)과 이진탕(二陳湯)의 실험적(實驗的) 연구(硏究))

  • Kim, Young-Suk
    • The Journal of Korean Medicine
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    • v.15 no.2 s.28
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    • pp.212-232
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    • 1994
  • I selected the theory of blood stasis and wetness-phlegm among the major 4 causes of Joong Poong(C.V.A.)(wind. fire. deficiency of vital energy and wetness-phlegm) and recent etiology of blood stasis. An experimental studies were done to investigate the effects of Danggieum (removing blood stasis and promoting blood circulation) and Ijintang(dissipating wetness-phlegm) on thrombosis and elevated blood viscosity. The results were as follows; 1. The number of platelets were significantly increased in only Danggieum group. 2. Related to the amount of fibrinogen. only Danggieum group revealed some increase. but both groups revealed no significance. 3. Related to the prothrombin time. Danggieum and Ijintang groups had significant decrease. but Danggieum group revealed more significance. 4. Related to the degree of concentration of FDP, only Danggieum group had significant decrease. 5. Whole blood viscosity and plasma viscosity in lower shear rates. both groups of Danggieum and Ijintang had significant decrease. 6. Related to the amount of RBC. both groups of Danggieum and Ijintang had significant decrease. 7. Related to the change of hematocrit. only Danggieum group, and the change of hemoglobin. only Ijintang group had significant decrease. 8. Related to the change of body temperature. only Ijintang group had significant raise. 9. Related to the changes of WBC. glucose, albumin, total protein and body weight. Danggieum and Ijintang groups had each increase or decrease. but no significance. According to the above results, Danggieum had more significant effect than Ijintang on the thrombosis. and Ijintang had more significant effect than Danggieum on the elevated blood viscosity. And it is considered that it might be more effective in treating Joong-Poong(C.V.A) to take medicines regarding patient's constitution and symptoms as well as the causes of Joong-Poong(C.V.A)

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