• 제목/요약/키워드: Dryness Index

검색결과 74건 처리시간 0.021초

Climatic Water Balance Analysis using NOAA/AVHRR Satellite Images

  • KWON Hyung J.;KIM Seong J.;SHIN Sha C.
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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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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NOAA/AVHRR 위성영상을 이용한 기후학적 물수지 분석 (Climatic Water Balance Analysis Using NOAA/AVHRR Satellite Images)

  • 권형중;신사철;김성준
    • 한국농공학회논문집
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    • 제47권1호
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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.

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

  • 김규석;윤영희;박정수;김남권;김경준;김희택;홍승욱;장보형;윤화정;최인화;고성규
    • 한방안이비인후피부과학회지
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    • 제26권2호
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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).

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

  • 손소은;박혜진;최송;정민영
    • 한방안이비인후피부과학회지
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    • 제36권4호
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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.

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

  • 이희진;남원호;윤동현;홍은미;김태곤;박종환;김대의
    • 한국농공학회논문집
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    • 제62권2호
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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.

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

  • 김수민;신선미;김의일;이정은;유동열
    • 대한한방부인과학회지
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    • 제19권4호
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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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수문학적 가뭄 예측과 조기대응을 위한 기상-수문학적 가뭄의 연계분석 - 2022~23 전남지역 가뭄을 대상으로 (Combined analysis of meteorological and hydrological drought for hydrological drought prediction and early response - Focussing on the 2022-23 drought in the Jeollanam-do -)

  • 정민수;홍석재;김영준;윤현철;이주헌
    • 한국수자원학회논문집
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    • 제57권3호
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    • pp.195-207
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    • 2024
  • 본 연구는 전남지역 지역을 대상으로 과거에 발생했던 주요 가뭄사상을 선정하여 기상학적 가뭄과 수문학적 가뭄 발생 메커니즘을 분석하였다. 강우량 및 댐저수량을 입력자료로 일단위의 가뭄지수를 산정하였으며 기상학적 가뭄에서 수문학적 가뭄으로의 가뭄전이특성을 분석하였다. 최근에 전남지역에서 발생하여 심각한 피해를 야기한 2022~23년의 가뭄 특성을 평가하였으며, 과거에 발생했던 가뭄과 비교하면, 수문학적 가뭄의 지속기간은 2017~2018년 다음으로 장기간인 334일 지속되었고, 가뭄 심도는 -1.76으로 가장 심각한 것으로 평가되었다. 또한, 기상학적 가뭄지수인 SPI (Standardized Precipitation Index)와 수문학적 가뭄지수인 SRSI(Standardized Reservoir Storage Index)를 연계분석한 결과, 수문학적 가뭄 대응을 위한 SPI(6)의 선행적 활용방안을 제시할 수 있었다. 더우기, SRSI와 SPI(12)의 가뭄감시의 유사성을 통하여 미계측 유역의 수문학적 가뭄감시에 SPI(12)의 적용가능성도 확인하였다. 본 연구결과를 통하여 여름철 우기에 발생하는 장기간의 건조현상은 심각한 수준의 수문학적 가뭄으로의 전이가 될 수 있음을 확인했다. 따라서 선제적 가뭄대응을 위해서는 다양한 가뭄지수 실시간 모니터링 결과를 활용하고, 기상-농업-수문학적 가뭄으로의 전이현상을 이해하여 충분한 대응기간을 확보할 필요가 있다.

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

  • 정재현;선상우;홍승노;최지호
    • 수면정신생리
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    • 제23권2호
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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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    • 제15권16호
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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.

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

  • 임종훈;김정욱;김수전;김형수
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2019년도 학술발표회
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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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