• Title/Summary/Keyword: Dryness Index

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Climatic Water Balance Analysis using NOAA/AVHRR Satellite Images

  • KWON Hyung J.;KIM Seong J.;SHIN Sha C.
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.7-9
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    • 2004
  • The purpose of this study was to analyze the climatic water balance of the Korean peninsula using meteorological data and the evapotranspiration (ET) derived from NOAA/AVHRR. Quantifying water balance components is important to understand the basic hydrology. In this study, a simple method to estimate the ET was proposed based on a regression approach between NDVI and Morton's actual ET using NOAA/AVHRR data. The Morton's actual ET for land surface conditions was evaluated using a daily meteorological data from 77 weather stations, and the monthly averaged Morton's ETs for each land cover was compared with the monthly NDVIs during the year 2001. According to the climatic water balance analysis, water deficit and surplus distributed maps were created from spatial rainfall, soil moisture, and actual and potential ETs map. The results clearly showed that the temporal and spatial characteristics of dryness and wetness may be detected and mapped based on the wetness index.

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Climatic Water Balance Analysis Using NOAA/AVHRR Satellite Images (NOAA/AVHRR 위성영상을 이용한 기후학적 물수지 분석)

  • Kwon, Hyung-Joong;Shin, Sha-Chul;Kim, Seong-Joon
    • Journal of The Korean Society of Agricultural Engineers
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    • v.47 no.1
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    • pp.3-9
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    • 2005
  • The purpose of this study was to analyze the climatic water balance of the Korean peninsula using meteorological data and the evapotranspiration (ET) derived from NOAA/AVHRR, Quantifying water balance components is important to understand the basic hydrology, In this study, a simple method to estimate actual ET was proposed based on a regression approach between NDVI and Morton's actual ET using NOAA/AVHRR data, The Mortons actual ET for land surface conditions was evaluated using a daily meteorological data from 77 weather stations, and the monthly averaged Morton's ETs for each land cover was compared with the monthly NDVIs during the year 2001. According to the climatic water balance analysis, water deficit and surplus distributed maps were created from spatial rainfall, soil moisture, and actual and potential ETs map, The results clearly showed that the temporal and spatial characteristics of dryness and wetness may be detected and mapped based on the wetness index.

Inter- and Intra-rater Reliability of Pattern Identification Using Nasal Endoscopy for Allergic Rhinitis (비내시경을 활용한 알레르기 비염에 대한 한의학적 변증 지표의 관찰자간, 관찰자내 신뢰도 연구)

  • Kim, Kyu-Seok;Yun, Young-Hee;Park, Jeong-Su;Kim, Nam-Kwen;Kim, Kyung-Jun;Kim, Hee-Taek;Hong, Seung-Ug;Jang, Bo-Hyeong;Yoon, Hwa-Jung;Choi, In-Hwa;Ko, Seong-Gyu
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.26 no.2
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    • pp.10-18
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    • 2013
  • Objectives : We performed a pilot study to investigate inter- and intra-rater reliability of pattern identification using nasal endoscopy for allergic rhinitis(AR). Methods : Eight experts of ophthalmology, otolaryngology and dermatology of Korean medicine evaluated 20 nasal endoscopy photograph cases of AR patients with pattern identification index using nasal endoscopy for AR including the nasal membrane color(pale / hyperemia), nasal membrane humidity(dryness / dampness), rhinorrhea(watery / yellow), and membrane edema (atrophic / edematous) on nasal endoscopy. Results : Intra-rater agreement(%) and Kappa coefficient was generally from 'moderate' to 'good'(% agreement: 73.13-90% / Kappa coefficient: 0.547-0.748). Inter-rater agreement(%) and Kappa coefficient was also from 'moderate' to 'good' (% agreement: 65-85% / Kappa: 0.475-0.778) except 'humidity(dryness / dampness)' item (% agreement: 55.98% / Kappa: 0.340). In findings of subgroup analysis according to affiliation of raters, Inter-rater agreement(%) and Kappa coefficient of raters in same affiliation was higher than inter-rater agreement(%) and Kappa coefficient of raters in different affiliation except 'dryness / dampness' item. Conclusions : It is necessary to improve objectivity and reproducibility of pattern identification using nasal endoscopy for allergic rhinitis(AR) through the development of detail-oriented criteria and enhanced training of clinicians with development of standard operating procedures(SOPs).

Management of Steroid Rebound Phenomenon in Patients with Eczema (습진 환자의 스테로이드제 반동 현상 관리 및 치험 1례)

  • So-Eun Son;Hye-Jin Park;Song Choi;Min-Yeong Jung
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.36 no.4
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    • pp.196-205
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    • 2023
  • Objectives : We would like to report what symptoms appear in patients experiencing steroid rebound phenomenon and how to manage and treat them at Korean medicine hospital. Methods : A 20-year-old woman who had been using topical and oral steroids for more than 6 weeks presented to the hospital. She hospitalized for 5 weeks and stopped using steroid. The treatment applied was acupuncture, wet dressing therapy and herbal medicine including Yangdokbackho-tang, Sunbangpaedok-tang and Danguieumja. We assessed symptoms through Inflammation Index and Chronicization Index. Results : Right after she stopped using steroid, symptoms of skin got worse gradually. However, after 5 weeks of treatment, all symptoms except itching and dryness disappeared. When symptom was severe, Inflammation Index and Chronicization Index was 12 and 9 points and after the treatment they were 2 and 4 points. Conclusions : This study shows various symptoms in patients with topical steroid addiction and how to manage at Korean medicine hospital.

Percentile Approach of Drought Severity Classification in Evaporative Stress Index for South Korea (Evaporative Stress Index (ESI)의 국내 가뭄 심도 분류 기준 제시)

  • Lee, Hee-Jin;Nam, Won-Ho;Yoon, Dong-Hyun;Hong, Eun-Mi;Kim, Taegon;Park, Jong-Hwan;Kim, Dae-Eui
    • Journal of The Korean Society of Agricultural Engineers
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    • v.62 no.2
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    • pp.63-73
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    • 2020
  • Drought is considered as a devastating hazard that causes serious agricultural, ecological and socio-economic impacts worldwide. Fundamentally, the drought can be defined as temporarily different levels of inadequate precipitation, soil moisture, and water supply relative to the long-term average conditions. From no unified definition of droughts, droughts have been divided into different severity level, i.e., moderate drought, severe drought, extreme drought and exceptional drought. The drought severity classification defined the ranges for each indicator for each dryness level. Because the ranges of the various indicators often don't coincide, the final drought category tends to be based on what the majority of the indicators show and on local observations. Evaporative Stress Index (ESI), a satellite-based drought index using the ratio of potential and actual evaporation, is being used as a index of the droughts occurring rapidly in a short period of time from studies showing a more sensitive and fast response to drought compared to Standardized Precipitation Index (SPI), and Palmer Drought Severity Index (PDSI). However, ESI is difficult to provide an objective drought assessment because it does not have clear drought severity classification criteria. In this study, U.S. Drought Monitor (USDM), the standard for drought determination used in the United States, was applied to ESI, and the Percentile method was used to classify drought categories by severity. Regarding the actual 2017 drought event in South Korea, we compare the spatial distribution of drought area and understand the USDM-based ESI by comparing the results of Standardized Groundwater level Index (SGI) and drought impact information. These results demonstrated that the USDM-based ESI could be an effective tool to provide objective drought conditions to inform management decisions for drought policy.

A Clinical Study on the Effect of Daejo-hwan(DJH) on Climacteric Syndrome (갱년기(更年期) 증후군(症候群)에 미치는 대조환(大造丸)의 효과에 대한 임상 연구)

  • Kim, Soo-Min;Shin, Sun-Mi;Kim, Eui-Il;Lee, Jung-Eun;Yoo, Dong-Youl
    • The Journal of Korean Obstetrics and Gynecology
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    • v.19 no.4
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    • pp.225-244
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    • 2006
  • Purpose : This study was performed to assess the clinical effect of Daejo-hwan(DJH) on climacteric syndrome, not only common symptoms such as hot flushes, anxiety, palpitation and so on, but also urogenital tract disturbances like vaginal dryness and sexual problems. Methods : We randomly divided 120 women with the climacteric syndrome into two groups. One group received only DJH 2 pills(4g) a time, three times a day for 8 weeks and the other group didn't get any treatment for the same period. We evaluated sonography, DXA, blood test, female hormone test and questionnaires in the beginning as well as after 8 weeks of the treatment. Symptoms were measured by Kupperman's index, Menopausal Rating Scale and the Greene Climacteric Scale. Results : In this study, DJH was innoxious on liver and kidney. And DJH in the treated group reduced climacteric symptoms significantly as compared to the control group without enlargement of uterus myoma and the change of estradiol. In Kupperman's index and MRS, DJH in the treated group especially had effects on fatigue, shoulder pain. anxiety, headache, hot flushes as well as sexual problems. Conclusion : These results suggest that DJH can be useful in treating various climacteric symptoms including sexual problems without influences on the size of uterus myoma and estradiol.

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Combined analysis of meteorological and hydrological drought for hydrological drought prediction and early response - Focussing on the 2022-23 drought in the Jeollanam-do - (수문학적 가뭄 예측과 조기대응을 위한 기상-수문학적 가뭄의 연계분석 - 2022~23 전남지역 가뭄을 대상으로)

  • Jeong, Minsu;Hong, Seok-Jae;Kim, Young-Jun;Yoon, Hyeon-Cheol;Lee, Joo-Heon
    • Journal of Korea Water Resources Association
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    • v.57 no.3
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    • pp.195-207
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    • 2024
  • This study selected major drought events that occurred in the Jeonnam region from 1991 to 2023, examining both meteorological and hydrological drought occurrence mechanisms. The daily drought index was calculated using rainfall and dam storage as input data, and the drought propagation characteristics from meteorological drought to hydrological drought were analyzed. The characteristics of the 2022-23 drought, which recently occurred in the Jeonnam region and caused serious damage, were evaluated. Compared to historical droughts, the duration of the hydrological drought for 2022-2023 lasted 334 days, the second longest after 2017-2018, the drought severity was evaluated as the most severe at -1.76. As a result of a linked analysis of SPI (StandQardized Precipitation Index), and SRSI (Standardized Reservoir Storage Index), it is possible to suggest a proactive utilization for SPI(6) to respond to hydrological drought. Furthermore, by confirming the similarity between SRSI and SPI(12) in long-term drought monitoring, the applicability of SPI(12) to hydrological drought monitoring in ungauged basins was also confirmed. Through this study, it was confirmed that the long-term dryness that occurs during the summer rainy season can transition into a serious level of hydrological drought. Therefore, for preemptive drought response, it is necessary to use real-time monitoring results of various drought indices and understand the propagation phenomenon from meteorological-agricultural-hydrological drought to secure a sufficient drought response period.

A Case of Nasal Surgery for a Positive Airway Pressure-Intolerant OSAS Patient Due to Nasal Obstruction (코막힘으로 인해 양압기에 적응하지 못한 폐쇄성수면무호흡증 환자에서 시행된 코수술 1례)

  • Jung, Jae Hyun;Seon, Sang Woo;Hong, Seung-No;Choi, Ji Ho
    • Sleep Medicine and Psychophysiology
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    • v.23 no.2
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    • pp.97-99
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    • 2016
  • Positive airway pressure (PAP) is currently recommended as a primary treatment for obstructive sleep apnea syndrome (OSAS) and positively affects various subjective and objective parameters related to OSAS, such as the apnea-hypopnea index, excessive daytime sleepiness, and blood pressure. However, PAP also exhibits various adverse effects, including skin breakdown, pressure intolerance, claustrophobia, unintentional mask removal, mouth leaks, and dryness. Especially, unintentional mask removal due to nasal obstruction may result in poor PAP compliance. A 47-year-old male patient with severe OSAS who had low PAP compliance due to nasal obstruction underwent nasal surgery. After the surgery, nasal obstruction was corrected and the patient experienced improved PAP compliance (from 30.4% to 86.7%). This case demonstrates that nasal surgery may be useful for improving PAP compliance in OSAS patients with nasal obstruction.

Determination of Sexual Problems of Turkish Patients Receiving Gynecologic Cancer Treatment: a Cross-sectional Study

  • Demirtas, Basak;Pinar, Gul
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.16
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    • pp.6657-6663
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    • 2014
  • Background: The present study aimed to determine the prevalence and types of sexual problems of Turkish patients receiving gynecologic cancer treatment. Materials and Methods: A cross-sectional convenience sample of 168 women completed the Index of Female Sexual Function (IFSF) and a Patient Identification Form in a hospital in Ankara, Turkey. Mean IFSF scores of the patients were low ($15.7{\pm}5.72$, out of a possible 45), indicating high rates of sexual problems. Results: Women frequently reported problems with dyspareunia (97.1%), vaginal dryness (97.6%), decreased sexual desire (91.1%), and difficulties of sexual arousal (92.9%) related with the cancer treatment process. They reported increased sexual problems following the period of treatment as compared to before treatment (p<0.05). Sexual dysfunction was associated with low educational and income levels, advanced age, TAH-BSO-LND surgery (total abdominal hysterectomy-bilateral salphingoopherectomylymph node dissection), experiencing side effects of chemotherapy, receiving chemotherapy in addition to surgery and radiotherapy (CT+RT+Surgery), and having a large number of chemotherapy cycles (p<0.05). Conclusions: Patients hoped for and expected counseling from healthcare professionals about their sexual functioning in relation to cancer treatments. Nurses and physicians can help to improve the overall quality of life for gynecologic cancer patients through sexual counseling.

Dryness Evaluation of A Mountain Wetland Using Drought Index (가뭄 지수를 이용한 산지 습지의 건조화 평가)

  • Lim, Jong Hun;Kim, Jung Wook;Kim, Soo Jun;Kim, Hung Soo
    • Proceedings of the Korea Water Resources Association Conference
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    • 2019.05a
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    • pp.396-396
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    • 2019
  • 습지는 가장 생산적인 생태계 중 하나이며, 인류에게 수문학적, 경제적, 문화적 가치로도 매우 귀중한 역할을 하고 있다. 하지만 기후변화와 인간의 영향으로 수위저하와 건조, 수문체계에 변화를 주어 습지의 건조화 현상이 나타나고 이로 인해 생태계에도 영향을 미치고 있다. 특히 산지습지는 인위적 간섭에 매우 취약하고 환경변화에 민감하여 불규칙한 강수패턴 및 무분별한 개발은 습지수문환경에 영향을 미쳐 습지의 건조화를 심화시키는 원인이 되고 있다. 그 결과 자연적으로 습지의 면적이 감소하고 식생의 패턴 변화로 다양한 생물들과 보호가 필요한 종들이 사라질 것이므로 변화에 대응하기 위해서 건조화를 방지할 필요가 있다. 따라서 본 연구에서는 습지 내 지하수위 저하 또는 유입 유출량의 변화로 습지 토양의 수분이 감소하여 말라가는 현상을 습지 가뭄이라 정의하고 가뭄지수를 활용하여 이를 지수화 하였다. 현재 산지습지를 대상으로 가뭄을 지수화 시킨 선행연구가 거의 없기 때문에 향후 산지 습지의 가치를 보존하고 생태계 관리의 목적으로 후속 연구의 방향을 제시하는데 도움을 줄 것으로 예상된다.

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