Results 21 to 30 of about 1,363,325 (344)

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  

How do drying and rewetting events affect nutrient fluxes and bacteria dynamics in subtropical estuarine sediments? [PDF]

, 2018
Drying and rewetting occur frequently in coastal marsh sediments due to oscillations of rising and falling tides, and episodic droughts and floods. Similarly, drying events also occur within freshwater systems due to changing precipitation patterns ...
Jenkins, Jason D.
core   +1 more source

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

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

Bottom sediments of Lake Rotoma [PDF]

, 1983
Lake Rotoma is a deep (70-80 m), oligotrophic, warm monomictic lake of volcanic origin with insignificant stream inflow and no clearly defined outflow. For at least 60 years up to 1972 the lake level fluctuated markedly about an overall rising trend of ...
_____, _____, _____, _____, _____, _____, Anonymous, Brown J. M. A., Cassie Vivienne, Chapman V. J., Clayton J. S., Cole J. W., Davis R. B., Emery K. O., Ewart A., Fish G. R., Flint E. A., Folk R. L., Folk R. L., Gee F., Glasby G. P., Grange L. T., Healy J., Healy J., Howard R. K., Howorth R., Irwin J., Jolly V. H., Jolly V. H., Jordan C. F., Kamp P. J. J., Kirkman J. H., Kohn B. P., Lawless J. V., Lister G. S., Main W. de L., McColl R. H. S., McManus D. A., Mitsui K., Passega R., Phillips C. J., Pickrill R. A., Stumm W., Swift D. J. P., Visher G. S., Vucetich C. G., White E.   +46 more
core   +2 more sources

Hydrocarbon influence on denitrification in bioturbated Mediterranean coastal sediments [PDF]

, 1997
An in situ experiment has been carried out inbioturbated Mediterranean coastal marine sediments (Gulfof Fos) in order to study the influence of hydrocarbons ondenitrification after 1, 4 and 6 months. In theabsence of hydrocarbons in the control sediments,
Bertrand, Jean-Claude, Bonin, Patricia, Gilbert, Franck, Le Dréau, Yveline, Mille, Gilbert, Stora, Georges   +5 more
core   +4 more sources

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

Trace Element Composition of Stream Sediments an Integrating Factor for Water Quality [PDF]

, 1975
Bottom sediments, suspended sediments, and water were sampled along 130 miles of the Buffalo River in northern Arkansas. The water and acid extracts of the suspended sediments and the minus 95 mesh fraction of the bottom sediments were analyzed by atomic
Bowen, William S., MacDonald, Harold C., Steele, Kenneth F., Wagner, George H.   +3 more
core   +2 more sources