Results 111 to 120 of about 6,438,092 (299)

Cold-season freeze frequency is a pervasive driver of subcontinental forest growth. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Girardin MP   +7 more
europepmc   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

Tree species classification using intensity patterns from individual tree point clouds

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Personal laser scanning has evolved into a cutting-edge technology for obtaining fast and accurate biometric measurements of individual trees in a forest.
Andreas Tockner   +5 more
doaj   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

open access: yesAdvanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li   +7 more
wiley   +1 more source

U.S. Forest Service Report N 81/6/maps

open access: yes, 1991
Maps accompanying the Final Environmental Impact Statement for the northern Spotted Owl in the national forests in Washington, Oregon, and California showing spotted owl habitat areas, conservation strategy alternatives, critical habitat units, multi ...
United States. Forest Service.
core  

FEM growth and yield data monocultures - Common beech, revised version

open access: yes, 2017
The current database is part of the FEM growth and yield database, a collection of growth and yield data from even-aged monocultures (douglas fir, common oak, poplar, Japanese Larch, Norway spruce, Scots pine, Corsican pine, Austrian pine, red oak and ...
Goudzwaard, L. (Wageningen University & Research, Forest Ecology and Forest Management Group) DAI=info:eu-repo/dai/nl/190983256
core   +1 more source

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

open access: yesAdvanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

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