Results 11 to 20 of about 572,242 (262)

Assessing groundwater vulnerability by pollution mapping in Iran: Case study Hamadan - Bahar plain

open access: yesGeofísica Internacional, 2018
El agua subterránea es vulnerable a la contaminación debido a actividades humanas. Un aspecto fundamental de su manejo es la localización de la vulnerabilidad.
Oroji Balal
doaj   +1 more source

Climate Change Effects on Soil Freezing Depth in a Mountainous Region and a Semi-Arid Climate on the Malayer Plain [PDF]

open access: yesپژوهش‌های آبخیزداری, 2018
Soil freezing depth is an important parameter in the management of soil water availability in agriculture and horticulture. The purpose of this study was to investigate the effect of global warming and climate change on the freezing depth by using ...
Elham Kalhor   +2 more
doaj   +1 more source

Monitoring of agricultural drought using remote sensing data in the Sebou watershed, Morocco [PDF]

open access: yesE3S Web of Conferences
Drought is a climatic phenomenon that can adversely affect the environment and human activities. Currently, agricultural drought has become a concern in countries where agriculture largely depends on rainfall and is highly vulnerable to climatic ...
El-Bouhali Abdelaziz   +2 more
doaj   +1 more source

Impacts of groundwater extraction on salinization risk in a semi-arid floodplain [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2013
In the lower River Murray in Australia, a combination of a reduction in the frequency, duration and magnitude of natural floods, rising saline water tables in floodplains, and excessive evapotranspiration have led to an irrigation-induced groundwater ...
S. Alaghmand, S. Beecham, A. Hassanli
doaj   +1 more source

Analytical Study of Force–Displacement Behavior and Ductility of Self-centering Segmental Concrete Columns

open access: yesInternational Journal of Concrete Structures and Materials, 2017
In this study the behavior of unbonded post-tensioned segmental columns (UPTSCs) was investigated and expressions were proposed to estimate their ductility and neutral axis (NA) depth at ultimate strength.
Reza Hassanli   +3 more
doaj   +1 more source

Retinal motion statistics during natural locomotion

open access: yeseLife, 2023
Walking through an environment generates retinal motion, which humans rely on to perform a variety of visual tasks. Retinal motion patterns are determined by an interconnected set of factors, including gaze location, gaze stabilization, the structure of ...
Karl S Muller   +5 more
doaj   +1 more source

Modelling hydrological losses for varying rainfall and moisture conditions in South Australian catchments

open access: yesJournal of Hydrology: Regional Studies, 2015
Study region: The study is based on unregulated catchments located in Mt. Lofty, Northern and Yorke regions of South Australia (SA). Study focus: Hydrological losses, which are frequently used in design flood estimation, have a wide range of spatial and ...
S.H.P.W. Gamage, G.A. Hewa, S. Beecham
doaj   +1 more source

Quantification of soil losses using RUSLE model in the Boumlal watershed (Central Rif, Morocco) [PDF]

open access: yesE3S Web of Conferences
This contribution estimates soil losses in the Boumlal watershed by applying the Revised Universal Soil Loss Equation (RUSLE) and using GIS and remote sensing.
El Ouazani Ech-Chahdi Khadija   +2 more
doaj   +1 more source

Aquaponics in Urban Agriculture: Social Acceptance and Urban Food Planning

open access: yesHorticulturae, 2017
Aquaponics is emerging as a novel technology with particular potential for urban agriculture (UA). The social acceptance of aquaponics and its place in urban food planning has not previously been studied.
Georgia Pollard   +2 more
doaj   +1 more source

Optimising Moodle quizzes for online assessments

open access: yesInternational Journal of STEM Education, 2019
Background Computer-aided learning management systems (LMSs) are widely used in higher education and are viewed as beneficial when transitioning from conventional face-to-face teaching to fully online courses.
Sithara H. P. W. Gamage   +3 more
doaj   +1 more source

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