Results 111 to 120 of about 6,670,796 (349)

Abatement costs for agricultural nitrogen and phosphorus loads: a case study of South-Western Finland [PDF]

open access: yes, 2006
Designing efficient agri-environmental policies for agricultural nutrient load reductions calls for information on the costs of emission reduction measures.
Helin, Janne   +2 more
core   +1 more source

Towards the fabrication of phosphorus qubits for a silicon quantum computer

open access: yes, 2001
The quest to build a quantum computer has been inspired by the recognition of the formidable computational power such a device could offer. In particular silicon-based proposals, using the nuclear or electron spin of dopants as qubits, are attractive due
A. S. Dzurak   +38 more
core   +1 more source

In Materia Shaping of Randomness with a Standard Complementary Metal‐Oxide‐Semiconductor Transistor for Task‐Adaptive Entropy Generation

open access: yesAdvanced Functional Materials, EarlyView.
This study establishes a materials‐driven framework for entropy generation within standard CMOS technology. By electrically rebalancing gate‐oxide traps and Si‐channel defects in foundry‐fabricated FDSOI transistors, the work realizes in‐materia control of temporal correlation – achieving task adaptive entropy optimization for reinforcement learning ...
Been Kwak   +14 more
wiley   +1 more source

Phosphorus uptake by spring barley in dependence on the content of this element in soil

open access: yesAgronomy Science, 2008
The purpose of our studies was to assess the dependence of yield, content and uptake of phosphorus by spring barley and the content of available forms as well as mineral fractions of this element in soil.
Wiesław Bednarek, Renata Reszka
doaj  

Effects of Understory Vegetation on Soil Phosphorus Morphological and Availability in Larix gmelinii Forest in the Cold Temperate Zone

open access: yesShuitu Baochi Xuebao
[Objective] Due to the large differences in understorey vegetation and soil physicochemical properties of Larix gmelinii forest in the cold temperate zone of the Rreater Khingan Mountains, the characteristics and availability of soil phosphorus ...
ZHU Zhengqing, MAN Xiuling
doaj   +1 more source

Spot sampling of nutrient concentrations in the Puarenga catchment, Rotorua [PDF]

open access: yes, 2011
The Centre for Biodiversity and Ecology Research was approached by Tūhourangi Tribal Authority for assistance with measuring water quality in streams in the Puarenga Stream catchment. Water sampling was subsequently undertaken on 18 July 2011 and samples
Abell, Jonathan Michael   +1 more
core   +1 more source

Nitrogen and phosphorus limitation of phytoplankton growth in New Zealand lakes: Implications for eutrophication control [PDF]

open access: yes, 2010
We examine macronutrient limitation in New Zealand (NZ) lakes where, contrary to the phosphorus (P) only control paradigm, nitrogen (N) control is widely adopted to alleviate eutrophication.
Abell, Jonathan Michael   +2 more
core   +1 more source

Bio‐Inspired Nanoarchitected LiFePO4 Cathodes

open access: yesAdvanced Functional Materials, EarlyView.
Lithium iron phosphate (LFP) is synthesized using a bio‐inspired method, using acidic macromolecules similar to those found in many calcareous mineralized organisms to modulate the morphology and crystal growth of LFP‐carbon composite particles. The observations from this process indicate a non‐classical crystallization process, which subsequently ...
Parawee Pumwongpitak   +8 more
wiley   +1 more source

Recovery of Agricultural Nutrients from Biorefineries [PDF]

open access: yes, 2016
This review lays the foundation for why nutrient recovery must be a key consideration in design and operation of biorefineries and comprehensively reviews technologies that can be used to recover an array of nitrogen, phosphorus, and/or potassium-rich ...
Carey, Daniel Elliott   +3 more
core   +1 more source

Stoma‐Shell Nanoarchitecture for Enhanced Plasma Confinement Catalysis in Synthesis of Ethanol from CO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐energy electron impact in plasma catalysis often causes excessive dissociation of active intermediates, limiting C2+ product selectivity. To address this challenge, a bio‐inspired stoma‐shell nanoarchitecture is designed to decouple electron impact from catalytic reaction zones.
Nan Zou   +5 more
wiley   +1 more source

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