Results 41 to 50 of about 1,132 (215)

Feasibility Study – Using a Solar Evaporator to Reduce the Metalworking Fluid (MWF) Waste Stream [PDF]

, 2008
A solar evaporator was designed, built, and operated to reduce the water-based metalworking fluid waste stream. The evaporator was setup in Waste Management’s barrel lot inside one of the confinement areas. The unit processed three batches of waste fluid
Lazarus, Lloyd
core   +1 more source

Corrosion Behavior of AISI 1045 Carbon Steel in Metalworking Fluids Containing Pseudomonas xiamenensis

International Journal of Electrochemical Science, 2020
Microbial contamination of aqueous metalworking fluids (MWFs) is of significant concern in metal process industries. In this study, a dominant Pseudomonas sp. strain (P.
Qinghong Li, Lihua Dong, Yi Yang, Zeqi Wu, Hongling Zhu, Yaohua Dong, Yuanyuan Shen, Li Zhang, Qingye Lu   +8 more
doaj   +1 more source

The institutional paradox of a substantivist conception of the economy in public policy: Insights from public procurement for solidarity economy in Ecuador

Annals of Public and Cooperative Economics, EarlyView.
Abstract Ecuador's 2008 Constitution advanced an ambitious substantive economic vision through Buen Vivir (Good Living), recognizing a plural economy which encompasses private, public and solidarity economy (SE) sectors. This paper aims to analyze public procurement programs in Ecuador, one of the flagship Buen Vivir policies for SE promotion.
Maria‐José Ruiz‐Rivera, Andreia Lemaître   +1 more
wiley   +1 more source

Impact of Environmental Contaminants on Machining Properties of Metalworking Fluids

, 2003
Kishore Rajagopalan and his colleague explored how contaminants like tramp oils and salts impact the productivity of recycled metalworking fluids. They found that metalworking fluids had no losses in cooling and lubricating functionality until calcium ...
Rajagopalan, Nandakishore, Greeley, M.
core   +1 more source

Quality from Kent: Preliminary results from the analysis of fifth‐ to seventh‐century silver alloys

Archaeometry, EarlyView.
Abstract This paper explores early results from the chemical and lead isotope analysis of 30 silver‐alloy objects from southeast England dating between the fifth and seventh centuries CE, presenting limited aspects of the three main analyses that were conducted. First, a comparison of the results gained from surface x‐ray fluorescence (pXRF) values and
Toby F. Martin, Matthew J. Ponting
wiley   +1 more source

The Provenance of Silver in the Viking‐Age Hoard From Bedale, North Yorkshire

Archaeometry, EarlyView.
ABSTRACT The acquisition of silver was a key motive propelling the Viking expansion out of Scandinavia; identifying the sources of Viking silver during the early part of the Viking Age can provide critical insights into the relative significance of western European and eastern, Islamic wealth in the Viking expansion.
Jane Kershaw, Stephen Merkel, Andrew Woods, Jane Evans, Vanessa Pashley, Simon Chenery   +5 more
wiley   +1 more source

Skin Permeation of Solutes from Metalworking Fluids to Build Prediction Models and Test A Partition Theory

Molecules, 2018
Permeation of chemical solutes through skin can create major health issues. Using the membrane-coated fiber (MCF) as a solid phase membrane extraction (SPME) approach to simulate skin permeation, we obtained partition coefficients for 37 solutes under 90
Jacqueline M. Hughes-Oliver, Guangning Xu, Ronald E. Baynes   +2 more
doaj   +1 more source

Early Bronze Age Copper Circulation in the Guadalentín and Segura Valleys (SE Spain)

Archaeometry, EarlyView.
ABSTRACT Identifying the sources of copper used in Early Bronze Age metalwork from south‐east Spain is key to resolving a long‐running debate concerning centralized control, or lack thereof, over El Argar society's economic organisation. This study provides the first substantial integrated programme of EDXRF and MC‐ICP‐MS analyses for copper‐base ...
Dirk Brandherm, Ignacio Montero‐Ruiz
wiley   +1 more source

Submerged micro grinding: a metalworking fluid application study [PDF]

, 2020
Micro machining with micro pencil grinding tools (MPGTs) is an emerging technology that can be used to manufacture closed microchannel structures in hard and brittle materials as well as hardened steels like 16MnCr5. At their current operating conditions,
Heintz, Marius, Kieren-Ehses, Sonja, Aurich, Jan C., Kirsch, Benjamin, Bohley, Martin, Arrabiyeh, Peter   +5 more
core   +1 more source

Reduced lung cancer mortality and exposure to synthetic fluids and biocide in the auto manufacturing industry

Scandinavian Journal of Work, Environment & Health, 2010
OBJECTIVES: Water-based soluble and synthetic metalworking fluids (MWF) used in auto manufacturing may be contaminated by endotoxin from Gram-negative bacteria, a possible anticarcinogen via increased immuno­surveillance.
Amar J Mehta, Elizabeth J Malloy, Katie M Applebaum, Joel Schwartz, David C Christiani, Ellen A Eisen   +5 more
doaj   +1 more source