Results 31 to 40 of about 458 (173)

Collapse Potential Of Gypseous Soils From Iraq

open access: yes, 2016
Soil collapse occurs when increased moisture causes a chemical or physical bonds between the soil particles to weaken, which allows the structure of the soil to collapse. In Iraq, gypseous soils cover about (20 to 30) % of its total area concentrated primarily on the west desert and extended to the southern parts and directed towards south west.
Mohammed Y. Fattah*, Basma A. Dawood
openaire   +3 more sources

Evolutionary origins of abnormally large shoot sodium accumulation in nonsaline environments within the Caryophyllales. [PDF]

open access: yesNew Phytol, 2017
Summary The prevalence of sodium (Na)‐‘hyperaccumulator’ species, which exhibit abnormally large shoot sodium concentrations ([Na]shoot) when grown in nonsaline environments, was investigated among angiosperms in general and within the Caryophyllales order in particular. Shoot Na concentrations were determined in 334 angiosperm species, representing 35
White PJ   +7 more
europepmc   +2 more sources

Behavior of Square Footing Erected on Gypseous Soil Treated by Ceramic Wastes

open access: yesTikrit Journal of Engineering Sciences, 2022
Gypseous soil, as is well known, includes a specific quantity of gypsum. Gypsum is a water-soluble salt with a solubility of (2.2-2.6) gram/liter in distilled - water.
Arshed Ahmed Hussain Ahmed   +1 more
doaj   +1 more source

Mineralogical composition of the urinary stones from different provinces in Iraq. [PDF]

open access: yesScientificWorldJournal, 2005
For this study, 25 samples of urinary stones were chosen from different provinces in Iraq as representative sampling localities. These samples of urinary stones were collected to represent kidney, urate, and bladder stones. The main objectives of this study are to try to shed some light on the possibilities of tracking down the effective environmental ...
Afaj AH, Sultan MA.
europepmc   +2 more sources

Collapsibility of Gypseous Soil Treated with Pectin‐Biopolymer through Leaching

open access: yesJournal of Engineering, Volume 2023, Issue 1, 2023., 2023
Gypsum reinforcement in dry soil provides activity resistance. It quickly becomes a source of danger in the conditions of partial and complete soaking of gypsum soil as a result of the dissolution of gypsum, which poses a great danger to the structures built on this soil.
Ahmed H. Hussein   +3 more
wiley   +1 more source

Numerical Study on Load Bearing Capacity of Root‐Caisson Foundation

open access: yesMathematical Problems in Engineering, Volume 2023, Issue 1, 2023., 2023
Innovation has been made in the caisson foundation to support a very large structure resting over a soft soil stratum known as the root‐caisson foundation. This technique was executed in China‐Yangtze River Bridge. The root caisson foundation was first implemented in the Yangtze River bridge and discovered that the root improves soil structure ...
J. Jayashree   +5 more
wiley   +1 more source

Study on the Influence of Water Immersion in Loess Stratum on the Bearing Capacity of Foundation Bearing Layer of Pipe Gallery

open access: yesGeofluids, Volume 2022, Issue 1, 2022., 2022
Aiming at the influence of water immersion in the loess stratum on the bearing capacity of the pipe gallery foundation, taking the prefabricated pipe gallery demonstration project in Xiongan New District as the research object, the static penetration test and indoor triaxial test of the foundation bearing layer of the pipe gallery before and after ...
Xiaoting Pan   +5 more
wiley   +1 more source

Ceropegia longirostris sp. nov. (Apocynaceae–Asclepiadoideae) from Ethiopia and Kenya

open access: yesNordic Journal of Botany, Volume 39, Issue 12, December 2021., 2021
The new species Ceropegia longirostris Thulin, M.G.Gilbert & Kaariye is described, illustrated and mapped. It is known from two localities, one on gypsum in the Somali National Regional State (Ogaden) in southeastern Ethiopia and one, based on a photographic record, from just east of Lake Turkana in northwestern Kenya. The new species is a member of C.
Mats Thulin   +2 more
wiley   +1 more source

Two new species of Commicarpus (Nyctaginaceae) from the Horn of Africa

open access: yesNordic Journal of Botany, Volume 39, Issue 4, April 2021., 2021
The new species Commicarpus altus Thulin from central Somalia and C. ogadenensis Thulin from southeastern Ethiopia are described, illustrated and mapped. Both species are shrubs with succulent leaves and white flowers, and they have previously been treated as forms of the widespread and variable C. plumbagineus (Cav.) Standl. Commicarpus altus is found
Mats Thulin
wiley   +1 more source

Characteristics of the Interface between Bamboo Grids and Reinforced Soil of High‐Filled Embankments in Loess Areas

open access: yesAdvances in Civil Engineering, Volume 2021, Issue 1, 2021., 2021
There are a large number of high‐filled and deep‐dug highways in loess areas. The differential settlement between the filled and undisturbed soils is the main cause of damage. Bamboo grids are good reinforcement and flexural tensile materials for highway subgrades, and the properties of the interface between the bamboo grid and loess soil affect the ...
Jingwei Zhang   +4 more
wiley   +1 more source

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