Results 91 to 100 of about 77,791 (311)

Comparison Analysis of Blade Life Cycles of Land-Based and Offshore Wind Power Plants

open access: yesPolish Maritime Research, 2018
In recent years, the offshore wind power industry has been growing dynamically. A key element which decides upon power output of a wind power plant is blades.
Tomporowski Andrzej   +6 more
doaj   +1 more source

Energy and Chemicals from Native Grasses: Production, Transportation and Processing Technologies Considered in the Northern Great Plains [PDF]

open access: yes
Production of biomass from native prairie species offers the opportunity to produce energy and chemicals while providing substantial ecological services in the Northern Great Plains.
Dietrich, Erin   +3 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz   +4 more
wiley   +1 more source

Removal and Reuse of Phosphorus as a Fertilizer from CAFO Runoff [PDF]

open access: yes, 2019
Eutrophication is the process in which nutrient saturated waters promote algal blooms on the surface of the water. This limits the amount of dissolved oxygen content in the water, effectively limiting the range of species that can survive in a body of ...
Moore, Kristin
core   +2 more sources

What was a mortarium used for? Organic residues and cultural change in Iron Age and Roman Britain. [PDF]

open access: yes, 2011
The Romans brought the mortarium to Britain in the first century AD, and there has long been speculation on its actual purpose. Using analysis of the residues trapped in the walls of these ‘kitchen blenders’ and comparing them with Iron Age and Roman ...
Cramp, Lucy J E   +2 more
core   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter   +5 more
wiley   +1 more source

Antibacterial Potency of Combined Extracts of Mitragyna inermis (Linn) and Monotes kerstingii (Linn) on Salmonella Typhi and Salmonella Paratyphi A and Its In vivo Toxicity against Swiss Albino Mice

open access: yesUMYU Journal of Microbiology Research, 2017
The phytochemical screening, antibacterial, and toxicological effects of the extracts of Monotes kerstingii (Linn) and Mitragyna inermis (wild) were investigated. The plant extracts were prepared by the cold maceration method using water and ethanol and
Zumbes, H. J.   +8 more
doaj   +1 more source

Index to 1981 NASA Tech Briefs, volume 6, numbers 1-4 [PDF]

open access: yes, 1986
Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage ...

core   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

open access: yesAdvanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Firm Entry, Productivity Differentials and Turnovers in Import Substituting Markets: A study of the petrochemical industry in Colombia [PDF]

open access: yes
This paper analyses plant entry, total factor productivity growth, average productivity level differentials and turnovers across Colombia's petrochemical industry for the 1974-1998 period.
Carlos Pombo, Luis Gutierrez
core  

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