Printed circuit boards (PCBs)
Evaluation of Inherent Uncertainties of the Homogeneous Effective Thermal Conductivity Approach in Modeling of Printed Circuit Boards for Space Applications
... Electronic components are normally assembled to printed circuit boards (PCBs). Such components generate heat in op- eration which must be conducted away efficiently from the small mounting areas to ...
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Path Optimization for Electrically Inspecting Printed Circuit Boards with Alignment Marks
... Abstract—In inspections of printed circuit boards (PCBs), a test probe has to be moved to a number of PCB wiring patterns in some order. This paper considers path optimization for minimizing a total ...
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Review: Current Status of Recycling of Waste Printed Circuit Boards in India
... Printed circuit boards in e-waste contain both valuable materials such as gold, palladium, silver and base metals such as copper, nickel, iron, and ...
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RECOVERY OF COPPER FROM PRINTED CIRCUIT BOARDS OF COMPUTERS
... The printed circuit boards for this work was obtained from consumed computers found in computers maintenance centers in local ...these printed circuit boards was manually ...
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Studies on the Biosorption on Removal of Heavy Metal Copper in Printed Circuit Boards
... metals Printed circuit boards are particularly problematic to recycle because of the heterogeneous mix of organic material, metals, and glass ...scrap printed circuit board produced in ...
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A time domain approach to power integrity for printed circuit boards
... multilayer printed circuit boards (PCBs) by solving Maxwell’s equations for the electromagnetic field using the finite difference time domain (FDTD) ...
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MEMRECS—A Sustainable View for Metal Recycling from Waste Printed Circuit Boards
... waste Printed Circuit Boards (PCBs) with three material recycling quoting approaches: Material Recycling Efficiency (MRE), Resource Recovery Efficiency (RRE), and Quotes for En- vironmentally ...
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Measured average absorption cross-sections of printed circuit boards from 2 to 20 GHz
... particularly printed circuit boards (PCBs), affect the enclosure’s shielding ...of printed circuit boards taken from contemporary information and communication technology (ICT) ...
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Automatic Identification, Analysis and Investigation of Printed Circuit Boards for Defects and Errors Disclosure and Classification based on Nature
... the printed circuit boards and integral part of any ...This printed circuit boards plays a very important role in smooth functioning of any ...this printed circuit ...
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A profitability assessment of European recycling processes treating printed circuit boards from waste electrical and electronic equipments
... The management of Waste from Electric and Electronic Equipments (WEEEs) is a well-stressed topic in scientific literature. However, both (i) amounts of cash flows potentially reachable, (ii) future profitability trends, ...
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Leaching and Adsorption of Gold from Waste Printed Circuit Boards Using Iodine Iodide Solution and Activated Carbon
... Printed circuit boards (PCBs) are essential parts of most electrical and electronic equipment ...waste printed circuit boards (WPCBs) are dramatically increasing as a result of ...
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Separation and recovery of materials from scrap printed circuit boards
... of printed circuit boards would suggest that the major components are phenols with the presence of methyl and methylene groups suggesting that they may be substituted ...
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Influence of Oxidizing Agent on Recovery of Metals Including Gold and Silver from Printed Circuit Boards
... Printed circuit boards (PCB) were obtained from server room of the college. The reagents used were hydrochloric acid 35% (v/v), nitric acid 98% (v/v). The reagents were purchased from Rankem and were ...
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Color Model Analysis for Solder Pad Segmentationon Printed Circuit Boards
... for the inspection of surface mount devices (SMD), they require prior teaching to get accurate results. But for a THT joint soldering robotic system, this type of prior teaching of solder joints is not suitable as ...
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An Equivalent Circuit for EMI Prediction in Printed Circuit Boards Featuring a Straight-to-Bent Microstrip Line Coupling
... Parasitic coupling effects between neighboring microstrip lines are a major source of electromagnetic interference in printed circuit boards since they are composed of several parallel lines ...
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Static and Dynamic Simulation of Printed Circuit Boards
... One of the most important issues in finite element modeling of printed circuit boards is defining boundary conditions. The identification of PCB edge condition is very critical to have a reliable ...
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Processing waste printed circuit boards for material recovery
... of printed circuit boards can be recovered and this might be possible by using ...to printed cicuit boards, the organic resin should decompose to form an oil and gas which will ...
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Protecting Printed Circuit Boards from Harsh Vibration Environment
... The printed circuit board (PCB) which forms the basic support structure of all electronic equipment will be subjected to moderate to severe vibration environments during manufacture, transportation, ...
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Response of the Cracked Printed-Circuit Boards (PCBs) Subjected to Impulse Shock Loading
... An analytical method for the responses of the cracked PCBs subjected to impulse shock loading with simply supported boundary conditions is developed by means of th[r] ...
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Milling Microwave Printed Circuit Boards With Inconsistent Flatness With Safety Function
... First of all, the hardware was designed with the scanner hardware as demonstrated in Fig. 1a and Fig. 1b to allow the milling bit to move three-dimensionally in the X-, Y-and Z-axis. The mainframe of the system was ...
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