نتایج جستجو برای: frost resistance

تعداد نتایج: 379053  

Journal: : 2022

Over time, the pavement structure deteriorates. Factors that contribute to deterioration of are traffic load, material properties and climate influences. Low temperatures lead freezing water appearance ice lenses, which raises structure. It is necessary check resistance harmful effects frost. This paper presents calculation frost index value for six meteorological stations in Serbia period from...

Journal: :Polythematic Online Scientific Journal of Kuban State Agrarian University 2020

Journal: :Tree physiology 2013
Roberto Tognetti Caterina Palombo

A change in climate would be expected to shift plant distribution as species expand in newly favourable areas and decline in increasingly hostile locations (Kelly and Goulden 2008). Even under conservative scenarios, future climate changes are likely to include further increases in mean temperature with significant drying in some regions, as well as increases in the frequency and severity of ex...

2016
Emrys G. Hall Allen F. Jordan Dale F. Hurst Samuel J. Oltmans Holger Vömel Benjamin Kühnreich Volker Ebert

The NOAA frost point hygrometer (FPH) is a balloon-borne instrument flown monthly at three sites to measure water vapor profiles up to 28 km. The FPH record from Boulder, Colorado, is the longest continuous stratospheric water vapor record. The instrument has an uncertainty in the stratosphere that is < 6 % and up to 12 % in the troposphere. A digital microcontroller version of the instrument i...

Journal: :Tree physiology 2011
Othmar Buchner Gilbert Neuner

Winter frost resistance (WFR), midwinter frost hardening and frost dehardening potential of Pinus cembra L. were determined in situ by means of a novel low-temperature freezing system at the alpine timberline ecotone (1950 m a.s.l., Mt Patscherkofel, Innsbruck, Austria). In situ liquid nitrogen (LN₂)-quenching experiments should check whether maximum WFR of P. cembra belonging to the frost hard...

انتظاری, علیرضا , جعفرزاده, مرتضی , حدادنیـا‌, جـواد , کورونـدی‌, ابـراهیم ,

This study, with the help of minimum temperature data, has addressed the prediction of frost during 21 years period by means of neural network in Kermanshah province. In order to forecast frost, data were converted to the values between 0 and 1 by means of a subjective and one to one (injective) function. We have used feed-forward neural network by one hidden interior layer with number of chang...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید