Results 51 to 60 of about 161,141 (303)

Methodological Toolkit for Assessing the Investment Attractiveness of Renewable Resources in Northern and Arctic Territories [PDF]

open access: yes, 2016
This article examines a pressing issue of assessing the investment attractiveness of renewable resources in underdeveloped Northern and Arctic territories that have a huge untapped natural resource potential.
Balashenko, V. V.   +3 more
core   +3 more sources

Exciton Binding Energy Modulation in 2D Perovskites: A Phenomenological Keldysh Framework

open access: yesAdvanced Functional Materials, EarlyView.
The intrinsic screening effects are successfully decoupled from structural distortion by rigorously designing a series of 2D perovskites. This enabled us to demonstrate how the dielectric environment modulates the quasiparticle bandgap and exciton binding energy.
Kitae Kim   +15 more
wiley   +1 more source

Efficient NiOx Hole Transport Layers Enabled by Multifunctional MXenes for High‐Performance Tin‐Lead Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
An efficient NiOx HTL is successfully prepared by introducing MXene as an additive without further surface modification to fabricate high‐performance FASn0.5Pb0.5I3 perovskite solar cells. The introduction of MXene contributes to improved conductivity of NiOx, better aligned at NiOx/perovskite interfaces, and enhanced quality of perovskite films ...
Lijun Chen   +12 more
wiley   +1 more source

Mapping and characterization of intensity in land use by pasture using remote sensing

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2019
The current demand for food has been met through the exploitation of natural reserves. Brazil has 26% of its extension occupied by agricultural uses, 62% of which are pastures. Degraded pastures have greater land use intensity than well-managed pastures,
Arthur T. Calegario   +5 more
doaj   +1 more source

External Reflection From Two‐Photon Laser‐Printed Micromirrors Enables Photomechanical Actuation at a 90° Incident Angle

open access: yesAdvanced Functional Materials, EarlyView.
Light reflectance increases along incidence angle and transmittance significantly drops around 90‐degree incidence angle. Here, we report two‐photon laser printed micro mirrors that redirect the skimming light beam into normal light absorption. Using this technique, light‐driven micro walkers and grippers are demonstrated by using grazing incidence ...
Leilei Song, Jianfeng Yang, Hao Zeng
wiley   +1 more source

Creation of pasture agrophytocenoses based on drought-resistant forage plants [PDF]

open access: yesE3S Web of Conferences
The low yield of karakul-growing pastures and its sharp fluctuations in the arid regions of Uzbekistan are mainly due to natural and historical factors of this natural zone. The current state of desert and semidesert pastures is characterized, on the one
Nazarov Kholmurzo   +4 more
doaj   +1 more source

Glass Half-Full or Half-Empty? A Fire-Resistant Species Triggers Divergent Regeneration in Low-Resilience Pastures

open access: yesFrontiers in Forests and Global Change, 2020
Fire may divert or arrest natural regeneration in abandoned pastures throughout the tropics, transforming them to low-resilience systems that do not recover even in the absence of disturbances. Understanding regeneration in degraded landscapes is crucial
Andrea Sánchez-Tapia   +8 more
doaj   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

open access: yesAdvanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon   +4 more
wiley   +1 more source

Flexible Polypyrrole‐Based pH Sensors via Oxidative Chemical Vapor Deposition

open access: yesAdvanced Healthcare Materials, EarlyView.
Oxidative chemical vapor deposition (oCVD) of polypyrrole (PPy) thin films yields flexible, electrically conductive, and biocompatible pH sensors for monitoring on‐skin biological events. The highly sensitive, oCVD PPy skin‐conformal sensors enable real‐time, spatially resolved sensing of dynamic pH changes within physiologically relevant ranges (4–9 ...
Adrivit Mukherjee   +15 more
wiley   +1 more source

Smutgrass Control in Perennial Grass Pastures

open access: yesEDIS, 2009
Revised! SS-AGR-18, a 4-page illustrated fact sheet by Brent Sellers, J. A. Ferrell, and J. J. Mullahey, describes the biology and outlines control recommendations for this serious weed of improved perennial grass pastures, roadsides, natural areas, and ...
Brent Sellers   +2 more
doaj   +5 more sources

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