Results 21 to 30 of about 719,062 (315)

Diversity and abundance of diatoms (Bacillariophyceae) in sediments of the south coast of Iran [PDF]

بوم‌شناسی آبزیان, 2018
In this stud, the diversity and abundance of benthic diatoms were evaluated in 9 stations located in Persian Gulf (Sirik) and Oman Sea (Gwatar, Abshirinkon) in winter and spring of 1394 -1395.
Gilan Attaran Fariman, Mehran Loghmani, Aslam Mirkazehi   +2 more
doaj  

Correlating microbial community profiles with geochemical data in highly stratified sediments from the Arctic Mid-Ocean Ridge [PDF]

, 2012
Microbial communities and their associated metabolic activity in marine sediments have a profound impact on global biogeochemical cycles. Their composition and structure are attributed to geochemical and physical factors, but finding direct correlations ...
Baumberger, Tamara, Flesland, Kristin, Fonseca, Rita, Hannisdal, Bjarte, Jorgensen, Steffen Leth, Lanzén, Anders, Pedersen, Rolf B., Schleper, Christa, Steen, Ida H., Thorseth, Ingunn H., Øvreås, Lise   +10 more
core   +1 more source

Land reclamation using reservoir sediments in Tigray, northern Ethiopia [PDF]

, 2012
Accelerated soil erosion leads to sedimentation in reservoirs and a decline in their life span. As many reservoirs in northern Ethiopia are dry at the end of the dry season, we were able to evaluate the potential of using reservoir sediments for land ...
Bauer, Hans, Deckers, Jozef, Girmay, Gebreyohannes, Haile, Mitiku, Merckx, R, Nyssen, Jan, Poesen, Jean   +6 more
core   +2 more sources

Quantitative study on the characteristics of dynamic vehicle interference to geomagnetic field

地震科学进展
In recent years, geomagnetic observation stations have been subjected to more and more serious interference by HVDC transmission, subway, vehicles, etc.
Qin Tian, Xiujuan Hu, Guoping Chang, Shaopeng He, Pengkun Guo   +4 more
doaj   +1 more source

Distribution of heavy metals in sediments of Igbede, Ojo and Ojora rivers of Lagos, Nigeria [PDF]

, 2006
The distribution of some heavy metals, namely Cd, Pb, Zn, Fe, Cu, Cr and Mn in epipellic sediments of Igbede, Ojo and Ojora rivers of Lagos was studied weekly in the early summer (November) of 2003.
Adekoya , J. A, Ayejuyo, O. O, Williams, Akan B.   +2 more
core   +1 more source

Contaminated Aquatic Sediments [PDF]

Water Environment Research, 2007
A review of the literature published in 2014 relating to the assessment, evaluation and remediation of contaminated aquatic sediments is presented. The review is divided into the following sections: policy and guidance, methodology, distribution, fate and transport, bioavailability, bioaccumulation, risk, toxicity and remediation.
openaire   +9 more sources

Wind control on the accumulation of heavy metals in sediment of Lake Ulubat, Anatolia, Turkey [PDF]

, 2009
Freshwater Lake Ulubat (zmean = 1.5-2.0 m and Area = ~138 km2), NW Anatolia, Turkey was filled in by fine-to-medium-grain silts during the late Holocene.
Costa, PJM, Ileri, O, Kazancı, N, Kibar, M, Leroy, SAG, Sayılı, S, Toprak, O, Turgut, C, Öncel, S   +8 more
core   +1 more source

Analysis of temperature variation characteristics in relative recording rooms of geomagnetic reference stations

地震科学进展
The variation of temperature in the geomagnetic relative recording room can cause deviations in the relative recording data, thereby affecting the geomagnetic baseline value.
Shaopeng He, Xiujuan Hu, Guoping Chang, Pengkun Guo   +3 more
doaj   +1 more source

Prediction of Earthquake Death Toll Based on Principal Component Analysis, Improved Whale Optimization Algorithm, and Extreme Gradient Boosting

Applied Sciences
Earthquakes, as one of the most destructive natural disasters, often cause significant casualties and severe economic losses. Accurate prediction of earthquake fatalities is of great importance for pre-disaster prevention and mitigation planning, as well
Chenhui Wang, Xiaotao Zhang, Xiaoshan Wang, Guoping Chang   +3 more
doaj   +1 more source

Measurement and ecological risk assessment of heavy metals accumulated in sediment and water collected from Gomishan international wetland, Iran

Water Science and Technology, 2021
This study aimed to measure and ecologically assess heavy metals, including As, Cr, Pb, Cd, and Ni in water and sediment samples taken from Gomishan, an international wetland located in Golestan, Iran.
Nazanin Kalani, Borhan Riazi, Abdolreza Karbassi, Faramarz Moattar   +3 more
doaj   +1 more source