نتایج جستجو برای: bankfull stage

تعداد نتایج: 354819  

Sudan is a large country with an area of 1.88 million Km2, and has the second largest animal population in Africa consisting of 52.08 million sheep, 43.44 million goats, 41.76 million cattle and 4.62 million camels (MARF, 2013). The majority of animal wealth is concentrated in western Sudan (40%), followed by central Sudan (23%) (MARF, 2011). Minerals are divided into two groups, macro-minerals...

Journal: :international journal of horticultural science and technology 2015
hamideh mohammadi zahra pakkish vahidreza saffari

peach (prunus persica l. batsch.) is produced in most areas of iran, where flowering is hindered by temperature. using plant growth regulators to delay bloom is a suggestive measure to avoid frost damage. the objective of this study was to determine the effects of methyl jasmonate (mj) and salicylic acid (sa) on peach bloom delay and yield.  this study evaluated the applications of mj 0 (contro...

Journal: :Ecological Indicators 2021

The effects of anthropogenic disturbance on multiple facets biodiversity are poorly understood. In this study, we worked with the hypothesis that disturbances affect relationship between environmental heterogeneity (EH) and biodiversity. We used a model selection approach to test three predictions. P1: greater level disturbance, weaker will be EH both taxonomic functional alpha diversities. P2:...

2012
Gustavo Adolfo Mazza de Almeida José F. Rodríguez

[1] Many gravel bed streams have a typical bed morphology consisting of pool-riffle sequences, which provides important habitat diversity both in terms of flow and substrate. A complete explanation of pool-riffle genesis and self-maintenance remains elusive and, despite advances in understanding the effects of flow spatial and temporal variability, the key sediment processes have been only marg...

2007
Jeffrey C. Andrews-Hanna Roger J. Phillips

[1] The Martian outflow channels were carved by the eruption of catastrophic floods from groundwater aquifers. This study models the time evolution of a typical outflow channel flood originating within a chaos region. The flood initiates when superlithostatic pore pressures within a confined aquifer lead to the propagation of hydrofractures through the confining cryosphere to the surface. The p...

2009
KYLE E. JURACEK FAITH A. FITZPATRICK

In the United States, several thousand stream gages provide what typically is the only source of continuous, long-term streamflow and channel-geometry information for the locations being monitored. In this paper, the geomorphic content of stream-gage information, previous and potential applications of stream-gage information in fluvial geomorphic research and various possible limitations are de...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده کشاورزی 1393

چکیده کنه تارتن دو لکه ای tetranychus urticae koch یکی از چندخوارترین آفات شناخته شده محصولات کشاورزی دنیا به حساب می آید. در این بررسی جمعیت تخم و مراحل فعال این کنه در شرایط آلودگی طبیعی و مصنوعی در برگ های 8 رقم لوبیا در سال 1392 در گلخانه و مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه ارومیه موردمطالعه قرار گرفت. آزمایش به صورت طرح کاملاً تصادفی برای شرایط مزرعه در10 تکرار و برای شرایط گلخانه ای...

Journal: :iranian red crescent medical journal 0
masoumeh kordi department of midwifery, school of nursing and midwifery, mashhad university of medical sciences, mashhad, ir iran morvarid irani department of midwifery, school of nursing and midwifery, mashhad university of medical sciences, mashhad, ir iran; department of midwifery, school of nursing and midwifery, mashhad university of medical sciences, mashhad, ir iran. tel: +98-5117531407 fatemeh tara department of midwifery, school of nursing and midwifery, mashhad university of medical sciences, mashhad, ir iran habibollah esmaily departement of biostatistics and epidemiology, school of health, mashhad university of medical sciences, mashhad, ir iran

conclusions according to the appearance of the purple line in most of the cases and its high sensitivity and specificity, we can use it as a non-invasive complementary method for clinical assessment of labor progress. results the purple line appeared in 75.3% of women during the active phase of labor. appearance of the purple line in the prediction of labor progress had 90.2% sensitivity, 45.3%...

Journal: :Royal Society Open Science 2021

Perceived as environmental-friendly hydraulic structures, leaky barriers used for natural flood management are introduced into rivers, potentially creating migration fish. Using sustainable, local materials to construct wooden across river channels in upper catchments, these aim slow down the flow, reduce peaks and attenuate flow reaching downstream communities. Yet little is known about their ...

Journal: :Scientific Investigations Report 2021

First posted August 19, 2021 For additional information, contact: Director, Wyoming-Montana Water Science Center U.S. Geological Survey3162 Bozeman Avenue Helena, MT 59601 The Survey, in cooperation with the Montana Department of Transportation, developed regression equations based on channel width to estimate peak-flow frequencies at ungaged sites Montana. are data streamgages through Septembe...

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