Results 1 to 10 of about 272,656 (304)

Frost Forecasting considering Geographical Characteristics

open access: yesAdvances in Meteorology, 2022
Regional accuracy was examined using extreme gradient boosting (XGBoost) to improve frost prediction accuracy, and accuracy differences by region were found.
Hyojeoung Kim, Jong-Min Kim, Sahm Kim
doaj   +2 more sources

Mapping Statistical Characteristics of Frosts in Iran [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
To model and map the statistical characteristics of frost in Iran, the data related to the minimum daily temperature for a 15-year period (1990–2005) was obtained from Iran Meteorological Organization. Then using multivariate regression models, the
P. Mahmoudi
doaj   +4 more sources

Experimental Study on Frost Crystal Morphologies and Frosting Characteristics under Different Working Pressures

open access: yesApplied Sciences, 2022
Frost usually grows on the cooling surface of heat transfer equipment, which often operates under different working pressures. In such conditions, one of the fundamental influencing factors of frosting, the diffusion coefficient of water vapor around the
Tianwei Lai   +5 more
doaj   +2 more sources

Growth mechanism of segregated ice and its influence on frost heave characteristics during horizontal freezing [PDF]

open access: yesScientific Reports
Theories of ice segregation and frost heave developed for vertical freezing cannot be directly extended to horizontal freezing due to significant differences in water migration, segregated ice, and cryostructure between the two processes, resulting in a ...
Tianxiao Tang   +5 more
doaj   +2 more sources

Frost risks in the Mantaro river basin [PDF]

open access: yesAdvances in Geosciences, 2008
As part of the study on the Mantaro river basin's (central Andes of Perú) current vulnerability to climate change, the temporal and spatial characteristics of frosts were analysed. These characteristics included intensity, frequency, duration, frost-
G. Trasmonte   +3 more
doaj   +3 more sources

Experimental Study on Frosting Characteristics of Wavy Aluminum Surfaces

open access: yesZhileng xuebao, 2022
Aiming at extensive applications and frosting problems of wavy finned-tube heat exchangers and based on the phase change driving force to analyze its frosting mechanism, the frosting characateristics on wavy aluminum surfaces with different cold surface ...
Liu Yao   +5 more
doaj   +1 more source

A Review of Methods and Techniques for Detecting Frost on Plant Surfaces

open access: yesAgriculture, 2021
Severe frost usually has adverse impacts on agricultural production, resulting in crop freeze injury, poor crop yield, and crop quality reduction. Timely and accurate detection of frost plays an important role in cold damage warnings, prevention, and ...
Huan Song   +5 more
doaj   +1 more source

A Review of Condensation Frosting—Mechanisms and Promising Solutions

open access: yesCrystals, 2023
Icing in the form of condensation frosting occurs ubiquitously in our daily life and numerous industrial applications. As the frost layer mostly comprises mixed microscopic dendrites and discrete air pockets, condensation frosting manifests a thick ...
Tian Gu   +3 more
doaj   +1 more source

Experimental study on the evolution characteristics of cyclic frost heaving pressure of saturated fractured granite

open access: yesRock and Soil Mechanics, 2021
The frost heaving pressure generated by water–ice phase change and volume expansion of saturated fractured rock mass in cold regions promote the initiation and expansion of new fractures, and lead to further damage and deterioration of fractured rock ...
QIAO Chen   +4 more
doaj   +1 more source

Analysis of Elastoplastic Mechanical Properties of Non-Uniform Frozen Wall Considering Frost Heave

open access: yesApplied Sciences, 2023
The aim of this study was to analyze the force and deformation law of an artificial frozen wall. Thus, the frost heave coefficient was introduced to describe the frost heave characteristics, and the frozen wall was regarded as a heterogeneous material ...
Bin Wang   +4 more
doaj   +1 more source

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