نتایج جستجو برای: rdi

تعداد نتایج: 730  

در این تحقیق، از شاخص‌های  SPIRDI و SPEI برای تحلیل روند شدت- مدت- فراوانی خشک‌سالی در مناطق خشک و نیمه‌خشک ایران استفاده گردید. تعداد 25 ایستگاه سینوپتیک در اقلیم فوق با طول دوره مشترک آماری (1996-2014) انتخاب و شدت، مدت و فراوانی خشک‌سالی در هشت زیراقلیم برآورد گردید. نتایج نشان داد که روند خشک­سالی ا...

Journal: :The European respiratory journal 1988
M A Quera-Salva C Guilleminault M Partinen A Jamieson

Although chronic sleep fragmentation and oxygen saturation (Sao2) drops alone do not induce obstructive sleep apnoea (OSA), both are part of the feedback loop leading to obstructive sleep apnoea syndrome (OSAS). To determine factors in respiratory disturbance and Sao2 drops, we used polysomnographic and cephalometric data from 120 OSAS patients to construct a model which we then applied prospec...

Gholamreza Zehtabian Hassan Khosravi Kamran Karimi Mahsa Mirdashtvan Sara Nakhaee nezhad fard,

Comparability analyses are performed to investigate similarities/differences of the standard precipitation index (SPI) and the reconnaissance drought index (RDI), respectively, utilizing precipitation and ratio of precipitation over potential evapotranspiration (ET0). Data are from six synoptic stations in south Khorasan province in Iran.At the first for calculating SPI, the elevation-precipita...

ژورنال: دانش آب و خاک 2017
ام‌البنین بذرافشان عدنان صادقی لاری, مینا اقتدارنژاد,

هدف از این تحقیق تعیین سه شاخص SPI، RDI و SDI در پایش خشکسالی‌­های هواشناسی و هیدرولوژیکی در دشت بم و بررسی ارتباط آن­ها با یکدیگر، تحلیل مشخصه‌‌­های خشکسالی در مقیاس­‌های زمانی مختلف و احتمال وقوع آن­هاست. بررسی نتایج حاصل با استفاده از آزمون t جفت شده نشان‌دهنده تفاوت معنی­دار در نتایج شدت، مدت و فراوانی در شاخص  SPIباRDI بوده و بیشترین شباهت ویژگی­های یاد شده SDI با RDI به‌دست آمد. نتایج آزم...

Journal: :Archives of otolaryngology--head & neck surgery 2004
Hsueh-Yu Li Ning-Hung Chen Yu-Hsiang Shu Pa-Chun Wang

OBJECTIVE To evaluate the subjective and objective outcomes of extended uvulopalatal flap (EUPF) surgery in patients with obstructive sleep apnea. DESIGN Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36), Snore Outcomes Survey (SOS), Epworth Sleepiness Scale (ESS), and polysomnography were performed preoperatively and then 6 months postoperatively. SETTING Tertiary care, sleep...

Journal: :Remote Sensing 2018
Alessandro Matese Rita Baraldi André Berton Carla Cesaraccio Salvatore Filippo Di Gennaro Pierpaolo Duce Osvaldo Facini Massimiliano Giuseppe Mameli Alessandra Piga Alessandro Zaldei

In light of climate change and its impacts on plant physiology, optimizing water usage and improving irrigation practices play a crucial role in crop management. In recent years, new optical remote sensing techniques have become widespread since they allow a non-invasive evaluation of plant water stress dynamics in a timely manner. Unmanned aerial vehicles (UAV) currently represent one of the m...

Journal: :Journal of the Science of Food and Agriculture 2021

Journal of the Science Food and AgricultureVolume 101, Issue 14 p. 6147-6148 ErratumFree Access Erratum: medium-long term effects saline reclaimed water regulated deficit irrigation on fruit quality citrus This article corrects following: Medium-long Cristina Romero-Trigueros, Juan JA Cabañero, Pedro AN Tortosa, José MB Gambín, F Maestre-Valero, Emilio N Nicolás, Volume 100Issue 3Journal Agricu...

Journal: :The Laryngoscope 2014
Jose E Barrera

OBJECTIVES/HYPOTHESIS Determine the feasibility and accuracy of using virtual surgical planning (VSP) to direct the surgical and polysomnography (PSG) outcomes of patients with obstructive sleep apnea (OSA). STUDY DESIGN Prospective case series. METHODS Skeletal and soft tissue dimensions were measured from computed tomography (CT) to include posterior airway space (PAS) diameters at the oc...

Journal: :American journal of respiratory and critical care medicine 2004
Willis H Tsai Juan-Carlos Vazquez Tsutomu Oshima Leslie Dort Brian Roycroft Alan A Lowe Eric Hajduk John E Remmers

Anterior mandibular positioners (AMPs) have become increasingly popular as alternatives to continuous positive airway pressure for the treatment of obstructive sleep apnea. However, widespread acceptance of AMP is limited by an efficacy rate of 50-80% and an inability to predict which patients will respond to therapy. We evaluated 23 patients with obstructive sleep apnea (respiratory disturbanc...

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