Results 31 to 40 of about 65,448 (166)

A Flexible Particle Model for Rock Fracture: Validation and Assessment of the Influence of Deformability on the Macroscopic Response

open access: yesGeotechnics, 2022
Circular/spherical rigid particle models that were initially applied to rock fracture studies were not able to match the ratio of the compressive strength to tensile strength that occurs in rock.
Nuno Monteiro Azevedo   +2 more
doaj   +1 more source

Effect of Intermittent Water Application from Trickle Source on The Water Movement and Moisture Distributionin Layered Soil

open access: yesTikrit Journal of Engineering Sciences, 2020
Efficient design of trickle irrigation system depends on the shape and volume of wetted soil, which are affected by many factors. Among these factors are water application rate, soil profile type, initial soil moisture, and continuous or intermittent ...
Haqqi Ismail Yasin   +1 more
doaj   +1 more source

Morphological Variations of A Certain Tigris River Reach For Different Periods in Iraq

open access: yesTikrit Journal of Engineering Sciences, 2007
A morphological variations occurs in the paths of rivers due to many reasons such as the hydraulic changes in the natural flow regime of rivers in-addition to the human activities on rivers such as dams constructions on rivers.
Thair Al-Taiee, Adil Al-Hamdani
doaj   +1 more source

Hydro Engineering Feasibility Study of Surface Runoff Water Harvesting in Al-Ajeej Basin, North West Iraq

open access: yesTikrit Journal of Engineering Sciences, 2011
The hydro engineering characteristics of Al-Ajeej basin which was located within south Sinjar plain north west Iraq was analyzed to predict the possibility of surface runoff harvesting during rainfall season in the upstream sites in this basin using ...
Thair M. Al-Taiee, Anass M. M. Rasheed
doaj   +1 more source

Empirical Equations to Estimate Evapotranspiration in Mosul City

open access: yesTikrit Journal of Engineering Sciences, 2020
Average daily data of solar radiation, relative humidity, wind speed and air temperature from 1980 to 2008 are used to estimate the daily reference evapotranspiration in the Mosul City, North of Iraq.
Haqqi Ismail Yasin, Luma Fuaad Abdullah
doaj   +1 more source

Estimating Seepage Quantity through Homogenous Earth-Fill Dam with Horizontal Drainage Using Different Methods

open access: yesZanco Journal of Pure and Applied Sciences, 2020
Seepage is the main cause of failure of earthen dams; to prevent this failure, excessive seepage problems should be controlled. In this study, lowest seepage quantity through homogenous earth dam with horizontal filter by different methods was estimated.
jehan mohamed fattah, Bruska S. Mamand
doaj   +3 more sources

Dams are coming down, but not always by choice: the geography of Texas dams, dam failures, and dam removals

open access: yesTexas Water Journal, 2020
This study examines spatial and temporal trends in Texas dams, dam failures, and dam removals. Dams were examined from a state-wide perspective and within 10 major river basins that collectively account for over 80% of all dams in the state. The state-scale and basin-scale analysis revealed similar patterns of dam occurrence, however there was greater ...
Erin D. Dascher, Kimberly Meitzen
openaire   +2 more sources

Hydrodynamic Simulation of Flood Due to Hypothetical Momentary Mosul Dam Failure

open access: yesTikrit Journal of Engineering Sciences, 2020
Flood wave simulation due to hypothetical momentary failure of Mosul Dam was carried out by applying the (IBER) hydrodynamic model for the dam storage scenarios (300, 310, 320, 330 and 335) meter above sea level after testing the validity and calibration
Thair M. Al-Taiee, Mustafa S. Mustafa
doaj  

Quelques considérations sur l'Art Rupestre Schématique d'Andalousie

open access: yesZephyrus, 2009
Parmi les grandes étapes artistiques parcourues par l'humanité au cours de la préhistoire, l'art rupestre schématique de la péninsule ibérique occupe une place de premier plan, non seulement par sa grande extensión géographique, mais aussi par les ...
Lya DAMS, Marcel DAMS
doaj  

DAM-IN: Comprehensive Dam Catchment Attributes for Dam Safety Studies in India

open access: yesScientific Data
The Indian subcontinent has around 5715 dams across different rivers, which play a pivotal role in the growth of various economic sectors in the country. In this study, we developed a dataset of catchment attributes for 5715 dams over the Indian subcontinent using observed, reanalysis, and remote sensing data.
Mayank Tiwari, Saran Aadhar
openaire   +3 more sources

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