Results 71 to 80 of about 458,482 (315)

Effect of influent nutrient ratios and hydraulic retention time (HRT) on simultaneous phosphorus and nitrogen removal in a two-sludge sequencing batch reactor process [PDF]

open access: yes, 2009
A laboratory-scale anaerobic–anoxic/nitrification sequencing batch reactor (A2N- SBR) fed with domestic wastewater was operated to examine the effect of varying ratios of influent COD/P, COD/TN and TN/P on the nutrient removal.
Stephenson, Tom   +2 more
core   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

open access: yesAdvanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti   +12 more
wiley   +1 more source

Photoswitchable polyynes for multiplexed stimulated Raman scattering microscopy with reversible light control

open access: yesNature Communications
Optical imaging with photo-controllable probes has greatly advanced biological research. With superb chemical specificity of vibrational spectroscopy, stimulated Raman scattering (SRS) microscopy is particularly promising for super-multiplexed optical ...
Yueli Yang, Xueyang Bai, Fanghao Hu
doaj   +1 more source

Impact of chemical amendment of dairy cattle slurry on phosphorus, suspended sediment and metal loss to runoff from a grassland soil

open access: yes, 2011
peer-reviewedEmerging remediation technologies such as chemical amendment of dairy cattle slurry have the potential to reduce phosphorus (P) solubility and consequently reduce P losses arising from land application of dairy cattle slurry. The aim of this
Brennan, Raymond B.   +11 more
core   +1 more source

Ultrafast Vertical Organic Electrochemical Transistors With Ion‐Permeable Conductive Polymer Top Electrodes

open access: yesAdvanced Materials, EarlyView.
Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu   +14 more
wiley   +1 more source

Synergistic surface modification of Cu with schiff-base networks for high selectivity and durability in CO2-to-C2H4 electroreduction

open access: yesNature Communications
The electrocatalytic CO2 reduction reaction (e-CO2RR) on Cu-based catalysts has been extensively studied; however, achieving high selectivity for C2+ products and long-term durability remains challenging.
Wangjing Xie   +7 more
doaj   +1 more source

Research Progress of Free Radical Chemistry-Tandem Mass Spectrometry for Fine Structure Analysis of Lipids [PDF]

open access: yesZhipu Xuebao
As one of the six major nutrients, lipids play important roles in various biological processes, including cell membrane construction, signal transduction, and energy metabolism.
JIAN Rui-jun, XIA Yu
doaj   +1 more source

Internal Phosphorus Loading in Spring Lake: Year 2

open access: yes, 2004
Experimental and desktop studies were conducted during 2004 to better understand the factors affecting internal phosphorus (P) loading in Spring Lake, Michigan.
Steinman, Dr. Alan   +2 more
core  

Phosphorus sorption, accumulation and leaching [PDF]

open access: yes, 2003
Arable land is a major diffuse source of P loads to surface waters. The main processes for P losses from agricultural fields are erosion, surface runoff and subsurface leaching.
Börling, Katarina
core  

Phase Boundary Engineering of Co2P‐CoP Branched Nanoparticles Enhances Cobalt Oxidation for Oxygen Evolution Electrocatalysis

open access: yesAdvanced Materials, EarlyView.
Phase boundaries between Co2P and CoP are constructed through a controlled transformation of Co to Co2P‐CoP branched nanoparticles. The polycrystalline mixed‐phase Co2P‐CoP branches are enriched with phase boundaries that stabilize Co active sites for OER. This work highlights phase boundary engineering as a powerful approach to tailor active sites and
Zeno R. Ramadhan   +10 more
wiley   +1 more source

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