Results 41 to 50 of about 97,001 (208)

LPViT: A Transformer Based Model for PCB Image Classification and Defect Detection

open access: yesIEEE Access, 2022
PCB (printed circuit board) is an extremely important component of all electronic products, which has greatly facilitated human life. Meanwhile, tons of PCBs in the waste streams become a waste of resources, which puts the recycling and reuse of PCBs in ...
Kang An, Yanping Zhang
doaj   +1 more source

Octanol/Water Partitioning Coefficients of PCB Mixtures for Environmental Fate and Transport [PDF]

open access: yes, 2013
Polychlorinated biphenyls (PCBs) are a human and environmental toxin introduced to the environment from the 1920’s to the 1970’s from manufacturing items such as transformers and capacitors.
Cicilio, Phylicia
core   +1 more source

Prediction of radiated electromagnetic emissions from PCB traces based on Green dyadics [PDF]

open access: yes, 1995
Because it costs to solve ElectroMagnetic Compatibility (EMC) problems late in the development process, new methods have to predict radiated electromagnetic emissions at the design stage.
Canavero, Flavio   +2 more
core   +1 more source

Direct and indirect effects of different types of microplastics on freshwater prey (Corbicula fluminea) and their predator (Acipenser transmontanus). [PDF]

open access: yesPLoS ONE, 2017
We examined whether environmentally relevant concentrations of different types of microplastics, with or without PCBs, directly affect freshwater prey and indirectly affect their predators. Asian clams (Corbicula fluminea) were exposed to environmentally
Chelsea M Rochman   +8 more
doaj   +1 more source

Contamination and human health risk assessment of indicative polychlorinated biphenyls (PCBs) in meats and eggs in five provincial-level regions across China

open access: yesZhongguo gonggong weisheng, 2022
ObjectiveTo investigate levels and the risk of dietary exposure to indicative polychlorinated biphenyls (PCBs) in ribbonfish, beef, pork, and eggs sampled in representative regions of China for providing data to developing limit standard of PCBs in food.
Hui-rong WANG   +2 more
doaj   +1 more source

Probabilistic Approach to Assessing Photolithography Quality in the Production of Printed Circuit Boards

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника
Introduction. The current trend in the production of miniaturized electronic devices with improved computing power and performance leads to an increase in the density of interconnections on printed circuit boards (PCBs) and a reduction in the dimensions ...
M. A. Korobkov, V. S. Barabanov
doaj   +1 more source

Legacy contaminants in the eastern Beaufort Sea beluga whales (Delphinapterus leucas): are temporal trends reflecting regulations?

open access: yesArctic Science, 2018
Once deposited onto Arctic ecosystems, persistent organic pollutants (POPs) biomagnify in foodwebs such that relatively high levels have been detected in predators like beluga whales (Delphinapterus leucas).
Marie Noël, Lisa L. Loseto, Gary Stern
doaj   +1 more source

Signaling in a polluted world: oxidative stress as an overlooked mechanism linking contaminants to animal communication [PDF]

open access: yes, 2016
The capacity to communicate effectively with other individuals plays a critical role in the daily life of an individual and can have important fitness consequences.
Costantini, David, Marasco, Valeria
core   +1 more source

Industrial Sources of Dioxin Poisoning in Mossville, Louisiana: A Report Based on the Government's Own Data [PDF]

open access: yes, 2007
Since 1998, the U.S. Agency for Toxic Substances and Disease Registry (ATSDR) -- which is a division of the Centers for Disease Control -- has conducted an Exposure Investigation of dioxins in Mossville, Louisiana, an historic African American community ...
Wilma Subra
core  

Convergence acceleration and accuracy improvement in power bus impedance calculation with a fast algorithm using cavity modes [PDF]

open access: yes, 2005
Based on the cavity-mode model, we have developed a fast algorithm for calculating power bus impedance in multilayer printed circuit boards. The fast algorithm is based on a closed-form expression for the impedance Z matrix of a rectangular power bus ...
Koga, Ryuji   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy