Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Heather M. Knotek-Smith"'
Autor:
Li Bao, Fuyu Guo, Hanrui Wang, Steven L. Larson, John H. Ballard, Heather M. Knotek-Smith, Qinku Zhang, Jing Nie, Ahmet Celik, Saiful M. Islam, Shalom Dasari, Naiming Zhang, Fengxiang Han
Publikováno v:
MethodsX, Vol 8, Iss , Pp 101275- (2021)
A modification method of clay mineral surface was developed to improve its adsorption capacity of uranium. Uranium is a radionuclide with high toxicity and extremely long half-life, which can pollute the environment and endanger human health. This st
Externí odkaz:
https://doaj.org/article/6dac0fb16ac74b9899e11fe9c88932d6
Autor:
Qinku Zhang, Steven L. Larson, John H. Ballard, Pohlee Cheah, Joseph A. Kazery, Heather M. Knotek-Smith, Fengxiang X. Han
Publikováno v:
MethodsX, Vol 7, Iss , Pp 100758- (2020)
After depleted uranium (DU) is deposited in the environment, it corrodes producing mobile uranium species. The upward transport mechanism in a desert landscape is associated with the dissolution/precipitation of uranium minerals that vary in composit
Externí odkaz:
https://doaj.org/article/6e23c192798640a1a182f8385e99ab0b
Autor:
Qinku Zhang, Steven L. Larson, John H. Ballard, Pohlee Cheah, Xianchun Zhu, Heather M. Knotek-Smith, Fengxiang X. Han
Publikováno v:
MethodsX, Vol 7, Iss , Pp 100789- (2020)
A novel laboratory simulation system has been developed for the study of the corrosion of uranium metal in soils. Corrosion and transportation of depleted uranium (DU) as the metal undergoes weathering as a buried material within the soil environment
Externí odkaz:
https://doaj.org/article/99bda09164034b5faf70acf3fcd42bb1
Autor:
Fuyu Guo, Li Bao, Hanrui Wang, Steven L. Larson, John H. Ballard, Heather M. Knotek-Smith, Qinku Zhang, Yi Su, Xingxiang Wang, Fengxiang Han
Publikováno v:
MethodsX, Vol 7, Iss , Pp 101022- (2020)
Biochar is a stable carbon rich by-product synthesized through pyrolysis of plant and animal based biomass, and nano-biochar material has gained increasing attention due to its unique properties for environmental applications. In the present study, a
Externí odkaz:
https://doaj.org/article/223a2d024d2f4029b7bee729bd2e4157
Autor:
Joseph A. Kazery, Rui Yang, Li Bao, Qinku Zhang, Markiesha James, Shaloam Dasari, Fuyu Guo, Jing Nie, Steve L. Larson, John H. Ballard, Heather M. Knotek-Smith, Ron Unz, Paul B. Tchounwou, Fengxiang X. Han
Publikováno v:
ACS earthspace chemistry. 6(5)
Armor-penetrating projectiles and fragments of depleted uranium (DU) have been deposited in soils at weapon-tested sites. Soil samples from these military facilities were analyzed by inductively coupled plasma-optical emission spectroscopy and X-ray
Autor:
Steven L. Larson, John H. Ballard, Ruyi Yang, Xingxiang Wang, Dongmei Cao, Georgio Proctor, Fuyu Guo, Heather M. Knotek-Smith, Fengxiang X. Han
Publikováno v:
ACS Earth and Space Chemistry. 5:2160-2168
Autor:
Ahmet Celik, Saiful Islam, Georgio Proctor, Heather M. Knotek-Smith, Paul B. Tchounwou, John H. Ballard, Shaloam Dasari, Joseph A. Kazery, Steven L. Larson, Fengxiang X. Han, Qinku Zhang
Publikováno v:
ACS Earth Space Chem
Uranium is a chemically toxic and radioactive heavy metal. Depleted uranium (DU) is the byproduct of the uranium enrichment process, with a majority of U as uranium-238, and a lower content of the fissile isotope uranium-235 than natural uranium. Ura
Autor:
Nan Hu, Heather M. Knotek-Smith, Xue Chen, Fengxiang X. Han, John H. Ballard, Dan Zhang, Dexin Ding, Steven L. Larson
Publikováno v:
ACS Earth and Space Chemistry. 4:2205-2214
Anthropogenic activities involving uranium mining, nuclear fuel processing, nuclear weapon production, or nuclear power plant accidents have polluted soil and groundwater. As a byproduct of the ura...
Autor:
Georgio Proctor, Decheng Jin, Jiangxia Li, Fengxiang X. Han, Charles Waggonor, Heather M. Knotek-Smith, Zikri Arslan, Hanrui Wang, Ron Unz, Steven L. Larson, John H. Ballard, Jackeline McComb
Publikováno v:
ACS Earth and Space Chemistry. 4:211-217
Depleted uranium (DU) armor-penetrating munitions are used on testing and training ranges leading to elevated concentrations of U in range soils. To prevent exposure from secure areas contaminated ...
Autor:
Xianchun Zhu, Fengxiang X. Han, Heather M. Knotek-Smith, Shaloam Dasari, John H. Ballard, Steven L. Larson, Precious Cooper, Jing Nie, Ahmet Celik
Publikováno v:
Water, Air, & Soil Pollution. 232
Uranium is a naturally occurring trace element and radionuclide. Uranium is introduced in the environment during industrial activities and nuclear energy accidents involving nuclear power plants, nuclear weapons tests, ore mining, and manufacturing,