Results 111 to 120 of about 2,592,313 (266)

Applying complex network metrics to individual-tree diameter growth modeling

open access: yesiForest - Biogeosciences and Forestry
Mathematical approaches that explain growth increments, while accounting for inter-tree competition, are advancing. As interactions between trees represent a network structure within an ecological system, they can be described by topological metrics ...
Leite e Lopes I   +5 more
doaj   +1 more source

Water regulation: the periodic review [PDF]

open access: yes
Since the privatisation of the water industry in 1989, issues relating to the pricing of water, charging structures and the conduct of the water regulators have rarely been out of public attention.
Dieter Helm, Najma Rajah
core  

Covalently Integrated Selenoviologen–N‐Heterocyclic Carbene–Pt Nanoparticles for Visible‐Light‐Driven Hydrogen Evolution

open access: yesAdvanced Science, EarlyView.
A covalently integrated single‐component photocatalyst is constructed by anchoring selenoviologen to platinum nanoparticles via robust N‐heterocyclic carbene ligands. The resulting Pt─C covalent bonds function dually as protective structural scaffolds and direct channels for ultrafast intramolecular electron transfer This precise interfacial ...
Wenxi He   +8 more
wiley   +1 more source

Tax Increment Financing for Optimal Open Space Preservation: an Economic Inquiry [PDF]

open access: yes
The public has increasingly demonstrated a strong support for open space preservation. Questions left to local policy-makers are how local governments can finance preservation of open space in a politically desirable way, whether there exists an optimal ...
Jiang, Yong, Swallow, Stephen K.
core  

Robust and minimum norm pole assignment with periodic state feedback [PDF]

open access: yes, 1998
A computational approach is proposed to solve the minimum norm and/or robust pole assignment problem for linear periodic discrete-time systems. The proposed approach uses a periodic Sylvester equation based parametrization of the periodic pole ...
Varga, A.
core  

Sonoselective Transfection of Glioma Endothelium

open access: yesAdvanced Science, EarlyView.
Delivering non‐viral, gene‐bearing nanoparticles with thiol‐decorated surfaces to gliomas with focused ultrasound yields transfection tropism for endothelial cells. From this platform, “sonoselective” transfection of glioma endothelium is achieved via incorporation of an endothelial cell‐specific promoter.
Anna C. Debski   +8 more
wiley   +1 more source

Self‐Assembly of Organic–Inorganic Copolymers Toward Bio‐Inspired Cementitious Composites

open access: yesAdvanced Science, EarlyView.
Organic–inorganic copolymerization of calcium silicate hydrate and thioctic acid produces a self‐organized nanocomposite inspired by the disordered collagen–mineral architecture of trabecular bone. The resulting material combines a compressive strength above 300 MPa with intrinsic physical reprocessibility, retaining over 80% of its strength and energy
Zonglin Xie   +8 more
wiley   +1 more source

Robust and Minimum Norm Pole Assignment with Periodic State Feedback [PDF]

open access: yes, 2000
A computational approach is proposed to solve the minimum norm or robust pole assignment problem for linear periodic discrete-time systems. The proposed approach uses a periodic Sylvester-equation-based parametrization of the periodic pole assignment ...
Varga, A.
core  

Engineering Large‐Grain Metal Halide Perovskite Films via Chemical Vapor Deposition for High‐Performance, Ultralow‐Noise Perovskite Photodetectors

open access: yesAdvanced Science, EarlyView.
Chemical vapor deposition produces large‐grain, phase‐pure CsPbBr3 films (grains up to 35 µm) with Drude‐like terahertz photoconductivity and twofold higher carrier mobility versus spin‐coated references. These microstructural advances translate into photodetectors with a detectivity of 8.4 × 1012 Jones, dark current below 1 pA cm−2, X‐ray sensitivity ...
Roel Vanden Brande   +14 more
wiley   +1 more source

Balancing related methods for minimal realization of periodic systems [PDF]

open access: yes, 1999
We propose balancing related numerically reliable methods to compute minimal realizations of linear periodic systems with time-varying dimensions. The first method belongs to the family of square-root methods with guaranteed enhanced computational ...
Varga, A.
core  

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