Results 131 to 140 of about 1,846,222 (311)

Atmospheric backscatter research [PDF]

open access: yes
Backscatter measurements were analyzed to evaluate the clean/dirty airmass hypothesis, the spatial scales of backscatter variability, and the correlation of backscatter and water vapor ...
Bowdle, D. A.
core   +1 more source

Water Quality Trading and Agricultural Nonpoint Source Pollution: An Analysis of the Effectiveness and Fairness of EPA's Policy on Water Quality Trading [PDF]

open access: yes, 2004
Water quality problems continue to plague our nation, even though Congress passed the Clean Water Act (CWA) to "restore and maintain the chemical, physical, and biological integrity of the Nation's waters"1 more than three decades ago.
Thomas K. Ruppert
core   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

open access: yesAdvanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir   +5 more
wiley   +1 more source

Statutory Interpretation in the Era of OIRA [PDF]

open access: yes, 2006
The Article is a case study regarding a rule governing cooling water towers for power plants promulgated pursuant to the Clean Water Act ( CWA ). It analyzes the history of the Office of Information and Regulatory Affairs ( OIRA ) within the Office of ...
Heinzerling, Lisa
core   +2 more sources

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Participatory empirical research on water and sanitation demand in central northern Namibia: a method for technology development with a user perspective [PDF]

open access: yes, 2010
Improvements in water infrastructure in developing countries are of major importance for achieving access to clean water. CuveWaters, a research based IWRM project, currently underway in Namibia, is testing different technical options to de-centralise ...
Deffner, Jutta, Mazambani, Clarence
core  

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian   +6 more
wiley   +1 more source

An analytical and experimental investigation of limited operational life of CO2 lasers to achieve a non flowing sealed CO2 gas laser Final report [PDF]

open access: yes
Carbon dioxide dissociation in gas discharge, water vapor and xenon effects on dissociation, and electrode material influence on clean-up rate related to nonflowing sealed gas ...
Fantasia, J. F.
core   +1 more source

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