نتایج جستجو برای: cleaning

تعداد نتایج: 19772  

2014
Jiannan Wang

With the increasing amount of available data, turning raw data into actionable information is a requirement in every field. However, one bottleneck that impedes the process is data cleaning. Data analysts usually spend over half of their time cleaning data that is dirty — inconsistent, inaccurate, missing, and so on — before they even begin to do any real analysis. It is a time consuming and co...

2014
Patrick J. Earley Brandon L. Swope Katherine Barbeau Randelle Bundy Janessa A. McDonald Ignacio Rivera-Duarte

Copper-based epoxy and ablative antifouling painted panels were exposed in natural seawater to evaluate environmental loading parameters. In situ loading factors including initial exposure, passive leaching, and surface refreshment were measured utilizing two protocols developed by the US Navy: the dome method and the in-water hull cleaning sampling method. Cleaning techniques investigated incl...

Journal: :Revue scientifique et technique 1995
G Salvat P Colin

The application and efficacy of cleaning and disinfection methods are reviewed, together with the relevant European and French legislation. European Commission Hygiene Directive 93/43/EEC of 14 June 1993 proposes the adoption of hazard analysis and critical control points (HACCP) for the meat industry, and this includes cleaning and disinfection. It is necessary to organise a team for washing, ...

Davarkhah Rabani, Hamid Reza Ghilasi, Karami Ghodratollah , Mohammad Reza Rezai Mofrad,

Background & Aims of the Study: Hospital infectious is one of the major causes of mortality among the hospitalized cases. The interior environment status of hospitals has the important rule in microbial transmission.  Translocation of the infectious agents may be essentially due to contacts between patients and contaminated interior environment. This work was performed to ...

2016
T. Palomar M. Oujja B. Ramírez Barat E. Cano M. Castillejo

In this study we evaluate the laser cleaning of tarnished pure and sterling silver substrates using a nanosecond Q-switched Nd:YAG laser at 1064, 532 and 266 nm. To assess the effects associated with cyclic laser cleaning treatments, several cycles of tarnishing followed by laser cleaning were applied on silver coupons that were characterized by gravimetry, colorimetry, scanning electron micros...

2007
Winfried Michels Michael Pieper

When reprocessing surgical instruments, process design is significant, in particular the choice of relevant process parameters for the effective removal of blood, the most common soil present. Cleaning performance is highly dependent, among other factors, on the alkalinity of the cleaning solution at appropriate temperatures to ensure that relevant specifications are fully complied with on site...

2004
William W. Nazaroff Charles J. Weschler

Building occupants, including cleaning personnel, are exposed to a wide variety of airborne chemicals when cleaning agents and air fresheners are used in buildings. Certain of these chemicals are listed by the state of California as toxic air contaminants (TACs) and a subset of these are regulated by the US federal government as hazardous air pollutants (HAPs). California’s Proposition 65 list ...

Journal: :Environmental technology 2013
Meng-Wei Wan Febelyn Reguyal Cybelle Futalan Hui-Ling Yang Chi-Chuan Kan

In this study, an ultrasonic irradiation technique was utilized to mitigate the fouling of polyethersulfone (PES) and polyvinylidene fluoride (PVDF) membranes. The use of ultrasound at 20 kHz was applied to a dead-end microfiltration cell in order to mitigate fouling caused by the presence of colloidal bentonite particles. The effect of ultrasonic power and pulse duration on the permeate flux r...

2017
LIN WANG Lin Wang Hong-guang Wang Yi-feng Song Xin-an Pan

Exposed porcelain insulator strings need regular cleaning to prevent power failures caused by flashovers from occurring. Live-line cleaning of insulators using robot technology is an alternative and novel approach to removing the contaminants on the surfaces of the insulator. This paper presents a live-line insulator cleaning robot for suspension insulator strings in 500kV power transmission li...

Journal: :Journal of behavior therapy and experimental psychiatry 2013
Laurie A Gelfand Adam S Radomsky

BACKGROUND AND OBJECTIVES Low perceived control (PC) and overestimations of controllability have each been related to obsessive compulsive (OC) symptoms and behaviour. OC beliefs and symptoms are also associated with a discrepancy between low perceived control (PC) and a high desire for control (DC). The present study sought to examine the influence of components of PC, low control-related self...

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