Results 21 to 30 of about 232,959 (351)

Statistical Analyses of Frosts in Iran [PDF]

open access: yesمخاطرات محیط طبیعی, 2012
The temperature phases could determine its effects on the environment. One of the important temperature phases that could be a disaster is frost. Frost has important roles on Biological activity as well as on economical.
Hosein Asakereh   +2 more
doaj   +1 more source

TEMPERATURE PREDICTION OIL PIPELINE IN FROST AREAS

open access: yesProblems of Gathering Treatment and Transportation of Oil and Oil Products, 2023
Pipeline operation in frost areas is essential thing in the present days. Changes of low-temperature profile of frozen soil along the length of a pipeline lead to changing conditions of the pipeline. That’s why it is vital to properly forecast and model thermo-hydraulics regimes and evaluate pipeline conditions to sustain correct positioning of the ...
N. A. Garris   +2 more
openaire   +1 more source

Connecting potential frost damage events identified from meteorological records to radial growth variation in Norway spruce and Scots pine [PDF]

open access: yes, 2017
The aim of this study was to examine if temperature conditions potentially causing frost damage have an effect on radial growth in Norway spruce and Scots pine in Finland.
Helama, Samuli   +6 more
core   +1 more source

Spatial and Temporal Variations in Active Layer Thawing and Their Implication on Runoff Generation in Peat-Covered Permafrost Terrain [PDF]

open access: yes, 2009
The distribution of frost table depths on a peat-covered permafrost slope was examined in a discontinuous permafrost region in northern Canada over 4 consecutive years at a variety of spatial scales, to elucidate the role of active layer development on ...
Hayashi, Masaki   +2 more
core   +2 more sources

Research status and progress of tunnel frost damage

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2019
The problems of frost damage in cold region tunnels have been systematically analyzed and studied by local and foreign scholars. A series of important achievements has been proposed.
Yanbin Luo, Jianxun Chen
doaj   +1 more source

Frost and flowers: Predicting the effects of climate change on spring frost damage using a large pollen count dataset [PDF]

open access: yes, 2010
Background/Question/Methods Climate change is resulting in warmer average temperatures in much of North America, leading to earlier flowering dates for most tree genera.
Daniel Katz
core   +2 more sources

THM coupled model for simulating frost heave based on a new water film pressure criterion

open access: yesYantu gongcheng xuebao, 2023
The frost heave and thaw settlement are the main frost damage in cold areas, which are the complex coupling process of water, temperature and stress fields.
WANG Zili 1, LI Jinfeng 1, TENG Jidong 1, 2, ZHANG Sheng 1, 2, SHENG Daichao 1, 2, 3
doaj   +1 more source

Experimental study on water transfer of soil-rock mixtures under freezing action

open access: yesYantu gongcheng xuebao
The frost-heaving failure of earth-rock dam slopes is mainly caused by the combined action of sand and gravel cushion, frost heaving of dam fills and water migration.
LI Zhuo 1, 2, JIANG Xin 3, ZHANG Jixun 3, ZHAO Yu 3, WANG Yuqing 3, LU Yang 3
doaj   +1 more source

A Numerical Investigation of Frost Growth on Cold Surfaces Based on the Lattice Boltzmann Method

open access: yesEnergies, 2018
A numerical investigation of frost growth on a cold flat surface was presented based on two-dimensional Lattice Boltzmann model. This model has been validated to have less prediction error by past experiments.
Jianying Gong   +4 more
doaj   +1 more source

Development of an index for frost prediction: Technique and validation

open access: yesMeteorological Applications, 2020
An index for frost prediction is proposed and calibrated against observations. It takes into account: (1) the main meteorological variables that favour or oppose to frost; (2) weights attributed to these variables; and (3) means and standard deviations ...
José R. Rozante   +5 more
doaj   +1 more source

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