نتایج جستجو برای: contaminations

تعداد نتایج: 1609  

Journal: :European Physical Journal C 2022

The Advanced Mo-based Rare process Experiment (AMoRE)-Pilot experiment is an initial phase of the AMoRE search for neutrinoless double beta decay $^{100}$Mo, with purpose investigating level and sources backgrounds. Searches generally require ultimately low Surface $\alpha$ decays on crystals themselves or nearby materials can deposit a continuum energies that be as high $Q$-value itself may fa...

Journal: :Journal of Environmental Science and Natural Resources 2013

Journal: :Minerals 2021

Ancient ceramics recovered after a long burial period have probably undergone several alterations and contaminations, introducing chemical variability, affecting the ceramic’s natural variability. That is, mineralogical compositions of ceramic pastes their deposition will not be same as they originally were. Therefore, it is known that alteration contamination processes, discrimination some ele...

Journal: :Neurocomputing 2021

We propose a deep fully convolutional neural network with new type of layer, named median to restore images contaminated by salt-and-pepper (s&p) noise. A layer simply performs filtering on all feature channels. By adding this kind into some widely used networks, we develop an end-to-end that removes extremely high-level s&p noise without performing any non-trivial preprocessing tasks. Experime...

Journal: :Nutrition and food technology 2023

Due to the increasing concern of consumers about farmed fish contamination, in this study, different wild and species (Nile tilapia (Oreochromis niloticus), gray mullet (Mugil cephalus), thin lip (Liza ramada) commonly consumed Egypt, were chemically analyzed for presence heavy metals, antibiotics, polycyclic aromatic hydrocarbons, organochlorine pesticides residues, hormones microbiologically ...

2005
Hsinchun Chen

T he tragic events of 11 September 2001, and the subsequent anthrax letter contaminations had drastic effects on many aspects of US society. Terrorism became the most significant threat to national security because of its real and potential damage to our infrastructure, economy, and people. In response to this challenge, federal authorities began actively implementing comprehensive strategies a...

1999
C. Burigana D. Maino N. Mandolesi F. Villa L. Valenziano M. Bersanelli L. Danese

We simulate Planck observations by adopting a detailed model of the microwave sky including monopole, dipole, anisotropies of the cosmic microwave background (CMB) and galactic and extragalactic foregrounds. We estimate the impact of main beam optical aberrations on CMB anisotropy measurements in presence of extragalactic source fluctuations and we discuss the main implications for the Planck t...

2004
W. Lisowski

For the first time, both X-ray Photoelectron Spectroscopy (XPS) and Auger Electron Spectroscopy (AES) techniques were applied in analysis of surface contamination of electrochemically etched Scanning Tunneling Microscope (STM) tungsten tips. Carbon monoxide, graphite, tungsten carbide and tungsten oxide were found as main surface contaminations of STM tungsten tips. The thickness of tungsten ox...

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