Results 121 to 130 of about 34,949 (308)

Stratification in Waste Stabilization Ponds I: Effects on Pond Parameters

open access: yesNigerian Journal of Technology, 2012
Stratification studies were carried out on the waste stabilization pond system at the University of Nigeria, Nsukka, Nigeria. Analysis of the samples collected with a water column sampler at 5cm and 0.1m apart showed some stratification of temperature, algae, pH, dissolved oxygen, coliform bacteria, chemical oxygen demand and nutrients.
Ukpong, EC, Agunwamba, JC, Egbuniwe, N
openaire   +1 more source

Hampton-Seabrook Estuary Restoration Compendium [PDF]

open access: yes, 2008
The Hampton-Seabrook Estuary Habitat Restoration Compendium (HSEHRC) is a compilation of information on the historic and current distributions of salt marsh and sand dune habitats and diadromous fishes within the Hampton-Seabrook Estuary watershed. These
Burdick, David M., Eberhardt, Alyson L.
core   +2 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May   +9 more
wiley   +1 more source

The effect of aerated rock filter geometry on the rate of nitrogen removal from facultative pond effluents

open access: yes
Rock Filters are an established technology for polishing waste stabilization pond effluents.However, they rapidly become anoxic and consequently do not remove ammonium-nitrogen.Horizontal-flow aerated rock filters (HFARF), developed to permit ...
Hamdan, R., Mara, D.D.
core  

Buffer Projects in the Town of Wakefield and City of Somersworth [PDF]

open access: yes, 2007
Participants in the Wakefield Buffer Project include SRPC staff, members of the Acton Wakefield Watershed Alliance (AWWA), local board and commission members, and the Wakefield Town Planner, Kathy Menici. AWWA members included: Linda Schier, Carol Lafond,
LaBranche, Julie
core   +1 more source

Characterization of Macro/Microstructure and Corrosion Resistance of Austenitic Gas Tungsten Arc Welding Cladding

open access: yesAdvanced Engineering Materials, EarlyView.
Cladding is a proven method that boosts the surface qualities of mechanical parts by applying a layer of more durable material over a base substrate. This work responds to the needs of offshore and pressure vessels sectors by focusing on cladding a super austenitic steel onto low‐carbon steel through gas tungsten arc welding.
E. J. da Cruz Junior   +6 more
wiley   +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

Effects of a Thermal Bath of Photons on Embedded String Stability

open access: yes, 2012
We compute the corrections of thermal photons on the effective potential for the linear sigma model of QCD. Since we are interested in temperatures lower than the confinement temperature, we consider the scalar fields to be out of equilibrium. Two of the
A. Vilenkin   +4 more
core   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

open access: yesAdvanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari   +4 more
wiley   +1 more source

Dynamics of the Planktonic Community in a Sanitary Sewage Treatment System Through Polishing Ponds

open access: yesActa Biológica Colombiana
For a better understanding of the factors involved in biological sewage treatment and the importance of the planktonic community in stabilization ponds, this research evaluated the functioning of a domestic sewage treatment system, considering pollutant
Adriana Barbosa Sales Magalhães   +3 more
doaj   +1 more source

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