Results 81 to 90 of about 461,379 (345)

Soil and Water Contamination due to Illegal Artisanal Refinery Activities: A Case Study of Okarki Community, Niger Delta Area, Nigeria [PDF]

open access: yes, 2019
Using a combination of field visits, laboratory experiments and analyses, this study examined the impacts of illegal artisanal crude oil refineries on the environment. Total Hydrocarbons (THC) and heavy metals in the soil and water bodies as well as pr
Galadima, Muhammed   +3 more
core   +1 more source

Research on pollution prevention and control in semiconductor process tool and mini-environment

open access: yesInternational Journal of Thermofluids
Taiwan currently holds the leading position globally in the semiconductor manufacturing industry, with wafer fabrication outsourcing playing a significant role. The cleanliness of cleanrooms is paramount to maintain and strengthen this position.
Shih-Cheng Hu   +5 more
doaj   +1 more source

Engineering study of riser equipment contamination [PDF]

open access: yes, 1999
This Engineering Study was to evaluate the current equipment and operating procedures to determine if changes could be made to improve ALARA and evaluate the feasibility of implementing the proposed solutions. As part of this study input from the cognizant characterization engineers and operating sampling crews was obtained and evaluated for ALARA ...
openaire   +2 more sources

A Systematic Comparison of Alpha‐Synuclein Seed Amplification Assays for Increasing Reproducibility

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Seed amplification assays (SAAs) enable ultrasensitive detection of misfolded α‐synuclein across biofluids and tissues. Yet, heterogeneity in protocols limits cross‐study comparability and clinical translation. Here, we review α‐synuclein SAA methods and their performance across various biological matrices.
Manuela Amaral‐do‐Nascimento   +3 more
wiley   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Study of contamination sensors. Volume I - Executive summary report [PDF]

open access: yes
Design criteria for automatic remotely indicating fluid contamination sensors, monitors, counters, and recorders and for sampling equipment and ...
Anthony, H. V.   +3 more
core   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Secado, almacenamiento y condiciones de canales de endoscopios después del reprocesamiento: ¿qué tan seguros son en la práctica clínica?

open access: yesRevista de Gastroenterología de México
Resumen: Introducción y objetivos: El secado y almacenamiento adecuados de los endoscopios flexibles son esenciales para mantener la calidad en su reprocesamiento.
N.B. Garcia, A.C. Oliveira
doaj   +1 more source

Poultry as a host for the zoonotic pathogen Campylobacter jejuni [PDF]

open access: yes, 2012
Campylobacteriosis is the most reported foodborne gastroenteritic disease and poses a serious health burden in industrialized countries. Disease in humans is mainly caused by the zoonotic pathogen Campylobacter jejuni.
Haesebrouck, Freddy   +8 more
core   +1 more source

Packaging of Macroscopic Material Payloads: Needs, Challenges, Concepts, and Future Directions

open access: yesAdvanced Engineering Materials, EarlyView.
This review introduces a unified framework that decomposes any macroscopic packaging system into the payload, packaging material, and packaging strategy and combines them into a conceptual packaging equation: packaging strategy = payload + packaging material.
Venkata S. R. Jampani, Manos Anyfantakis
wiley   +1 more source

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