Results 11 to 20 of about 1,185 (170)

Effects of Cement Treatment on Water Retention Behavior and Collapse Potential of Gypseous Soils: Experimental Investigation and Prediction Models

Advances in Civil Engineering
Gypseous soil poses a significant challenge in geotechnical engineering due to its susceptibility to collapse under saturation. This type of soil covers approximately 33% of regions in Iraq, primarily in unsaturated conditions.
Hussein Q. Abdulameer AlNaddaf, Saeed Kouzegaran, Mohammed Y. Fattah, Ali Akhtarpour   +3 more
doaj   +2 more sources

Evolutionary origins of abnormally large shoot sodium accumulation in non-saline environments within the Caryophyllales [PDF]

New Phytologist, Volume 214, Issue 1, Page 284-293, April 2017., 2016
The prevalence of sodium (Na) “hyperaccumulator” species, which exhibit abnormally large shoot sodium concentrations ([Na]shoot) when grown in non-saline environments, was investigated among angiosperms in general and within the Caryophyllales order in ...
Albert, Albert, Albert, Angiosperm Phylogeny Group IV (APGIV), Anna Taylor, Baker, Black, Broadley, Broadley, Bromham, Cheeseman, Collander, Crawley, Ding, Edwards, Ehleringer, Fahn, Flowers, Flowers, Flowers, Gladys Wright, Glenn, Glenn, Goodman, Gorai, Gorham, Greenway, Hamed A. El-Serehy, Helen C. Bowen, Heo, Hernández-Ledesma, Jacqueline A. Thompson, Jeong, Kadereit, Konrad Neugebauer, Kwon, Li, LoPresti, Martin R. Broadley, Moore, Munns, Niu, Nobel, Norman, Patel, Philip J. White, R Core Team, Rabhi, Ramani, Redondo-Gómez, Rozema, Sage, Salama, Saslis-Lagoudakis, Sghaier, Sharif, Silvera, Slama, Sonneveld, Storey, Thomson, Wallace, Wang, White, White, White, White, White, White, Yang, Yang, Yousif, Zhang   +72 more
core   +2 more sources

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

Tikrit 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, Adnan Jayed Zedan   +1 more
doaj   +1 more source

Collapsibility of Gypseous Soil Treated with Pectin‐Biopolymer through Leaching

Journal 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, Farouk M. Muhauwiss, Riyadh A. Abdul-Jabbar, Ramadhansyah Putra Jaya   +3 more
wiley   +1 more source

Numerical Study on Load Bearing Capacity of Root‐Caisson Foundation

Mathematical 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, S. Sathyapriya, V. Karthik, Selvakumar Periyasamy, Venkatesa Prabhu Sundramurthy, Abílio De Jesus   +5 more
wiley   +1 more source

Recent and ancient evolutionary events shaped plant elemental composition of edaphic endemics: a phylogeny‐wide analysis of Iberian gypsum plants

New Phytologist, Volume 235, Issue 6, Page 2406-2423, September 2022., 2022
Summary The analysis of plant elemental composition and the underlying factors affecting its variation are a current hot topic in ecology. Ecological adaptation to atypical soils may shift plant elemental composition. However, no previous studies have evaluated its relevance against other factors such as phylogeny, climate or individual soil conditions.
Sara Palacio, Andreu Cera, Adrián Escudero, Arantzazu L. Luzuriaga, Ana M. Sánchez, Juan Francisco Mota, María Pérez‐Serrano Serrano, M. Encarnación Merlo, Fabián Martínez‐Hernández, Esteban Salmerón‐Sánchez, Antonio Jesús Mendoza‐Fernández, Francisco J. Pérez‐García, Gabriel Montserrat‐Martí, Pablo Tejero   +13 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

Geofluids, 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, Huabing Ma, Haicheng Zhou, Li Zhu, Hongwei Shan, Hao Wu   +5 more
wiley   +1 more source

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

Nordic 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, Michael G. Gilbert, Hassan Y. Kaariye   +2 more
wiley   +1 more source

Characteristics of Artificial, Gypsified and Natural Gypseous Soils under Dry Condition [PDF]

Engineering and Technology Journal, 2019
Gypseous soil characteristics were studied types many researchers, but the bearing capacity of sandy gypseous soil with different preparing of the soil models were tested in dry condition under static and cyclic loads in this study, three types of ...
Wisam Yaqoob, Falah Rahil, Moammed Al-Neami   +2 more
doaj   +1 more source

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

Nordic 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