Results 141 to 150 of about 38,264 (266)

Integrating Boosted learning with Differential Evolution (DE) Optimizer: A Prediction of Groundwater Quality Risk Assessment in Odisha [PDF]

open access: yesarXiv
Groundwater is eventually undermined by human exercises, such as fast industrialization, urbanization, over-extraction, and contamination from agrarian and urban sources. From among the different contaminants, the presence of heavy metals like cadmium (Cd), chromium (Cr), arsenic (As), and lead (Pb) proves to have serious dangers when present in huge ...
arxiv  

Data Poisoning against Differentially-Private Learners: Attacks and Defenses [PDF]

open access: yesarXiv, 2019
Data poisoning attacks aim to manipulate the model produced by a learning algorithm by adversarially modifying the training set. We consider differential privacy as a defensive measure against this type of attack. We show that such learners are resistant to data poisoning attacks when the adversary is only able to poison a small number of items ...
arxiv  

Waterborne Arsenic Poisoning Caused by Discarded Slags - Yongzhou City, Hunan Province, China, 2018. [PDF]

open access: yesChina CDC Wkly, 2020
Lu J   +10 more
europepmc   +1 more source

POISONING BY ARSENICAL PAPER-HANGINGS. [PDF]

open access: yesThe Lancet
n ...
Evans, George, Blogg, W. G.
openaire   +2 more sources

THE EFFECTS OF THE MINING ACTIVITY OVER THE WATERS FROM JIU VALLEY [PDF]

open access: yes
The upper Jiu Valley, around Petrosani and Lupeni, is Romania�s principal coal mining region. Many miners feel that coal mining in Romania is a moribund industry that will never regain its position of significance. Environmental contaminants associated
Cristina BARBU
core  

Pressure-induced structural and superconducting transitions in black arsenic [PDF]

open access: yesarXiv
We report high-pressure Raman spectra and resistance measurements of black arsenic (b-As) up to 58 GPa, along with phonon density of states (DOS) and enthalpy calculations for four reported arsenic phases up to 50 GPa. It is found that metastable b-As transforms into gray arsenic (g-As) phase at a critical pressure of 1.51 GPa, followed by subsequent ...
arxiv  

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