Selecting suitable cleaning agents and determining justifiable cleaning process parameters are critical prerequisites for cleaning validation. Proper selection of these cleaning agents and parameters could simplify cleaning validation efforts immensely. Process cleaners may range from a single component, such as an organic solvent, to multicomponent formulations that use multiple cleaning mecha...

To study the influence of laser power, scanning speed, and cleaning water content on effect obtain best parameters, this paper conducted a simulation analysis process carried out pulse porcelain insulators experiment to verify. The results show that rate gradually increases as power from 20 W 25 W. As speed 1000 mm/s 2500 mm/s, overlapping decreases, takes lead in increasing then decreasing. ap...

The waste associated with cleaning of process equipment is probably a significant contr ibutor to the total waste volume generated by industry. This paper addresses the following aspects related to equipment cleaning waste generation: o Review of reasons for cleaning process equipment o Reduction of cleaning frequency o Reduction of quantity and toxicity of cleaning waste o Costs associated wit...

A UHV atomic hydrogen-cracking cell has been constructed to produce atomic hydrogen in order to perform in-situ cleaning of semiconductor samples. The cell was calibrated and tested with the objective of cleaning the III-V semiconductor samples such as GaAs. Mass spectroscopy studies during the atomic hydrogen cleaning of the GaAs samples revealed the chemical process of the hydrogen cleaning. ...

Introduction Wide bandgap semiconductors are becoming the new platform of choice for devices with greater power density and higher energy efficiency than silicon. In particular, Silicon carbide (SiC) is ideal for high power and high temperature (>150 oC) electronic applications because of its excellent properties as a high critical electric field for operate under high applied operating voltage...

Through the removal of parasites, dead skin and mucus from the bodies of visiting reef fish (clients), cleaner fish have a significant ecosystem function in the ecology of coral reefs. Cleaners gain nutrition from these interactions and through offering a 'service' are afforded protection from predators. Given these benefits, it is unclear why more fish do not engage in cleaning, and why part-t...

Background and Aim: Toothbrushes cannot reach all interdental areas. Interdental cleaning is an important part of oral hygiene care. The purpose of this study was to compare the supragingival plaque removal efficacy of an interdental cleaning power device (Aquajet) and dental floss. Materials and Methods: Thirty subjects were enrolled in this single-blind, split mouth clinical trial. All the...

This presentation discusses the use of an interval analysis based global optimization approach for the systematic design of cleaning solvent blends (commonly referred to as blanket washes) for lithographic printing. The simultaneous consideration of associated process constraints, property requirements, and environmental restrictions makes the blanket wash design a rather difficult problem. To ...