Results 81 to 90 of about 94,667 (299)

TEMPORAL AND SPATIAL VARIABILITY OF THE DIAMETER DISTRIBUTION IN A SECONDARY BRAZILIAN ATLANTIC FOREST SUGGESTS SITE-SPECIFIC MANAGEMENT PRACTICES [PDF]

open access: yesRevista Árvore
The diameter distribution of a forest makes it possible to understand its ecological processes and to define actions related to forest management aiming at forest conservation, biodiversity increase, production, and carbon sequestration, among others ...
Jônio Pizzol Caliman   +7 more
doaj   +2 more sources

Carbon Sequestration in Agricultural Soils [PDF]

open access: yes
Although it is common to alternate between till and no-till practices, past research has considered farmers’ tillage options to be limited to the dichotomous choice of whether or not to switch to a long-term no-till regime.
Wilman, Elizabeth A.
core   +1 more source

Discharge and turbidity of the regulated River Tees. Variance spectrum analysis [PDF]

open access: yes, 1985
High suspended sediment loads may be deleterious to adult salmonids and invertebrates in gravel-bedded streams. Further, the accumulation of fine material in the interstices of the gravel may have an adverse impact on the recruitment of the young stages ...
Carling, P.A., Douglas, N.H.N.
core  

An exact relation between Eulerian and Lagrangian velocity increment statistics

open access: yes, 2008
We present a formal connection between Lagrangian and Eulerian velocity increment distributions which is applicable to a wide range of turbulent systems ranging from turbulence in incompressible fluids to magnetohydrodynamic turbulence.
O. Kamps   +5 more
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane   +4 more
wiley   +1 more source

Graphene‐Interfaced Stretchable Sweat Patch for Multiplexed Electrochemical Monitoring of IL‐6, Glucose, and Calcium Ions

open access: yesAdvanced Materials Technologies, EarlyView.
Flexible sweat sensor patch integrating graphene‑interfaced gold microelectrodes functionalized with bio‑receptors and ion‑selective membrane, coupled with a capillary‑driven microfluidic layer and portable potentiostat electronics for multiplexed monitoring of inflammatory, metabolic, and electrolyte biomarkers in microliter sweat volumes.
Roomia Memon   +4 more
wiley   +1 more source

CRESCIMENTO DE MUDAS DE Parkia gigantocarpa Ducke, EM UM SISTEMA DE ENRIQUECIMENTO EM CLAREIRAS APÓS A COLHEITA DE MADEIRA

open access: yesCiência Florestal, 2014
Height periodic annual increment (2005-2010) of seedlings of Parkia gigantocarpa Ducke planted in gaps caused by logging, in the municipality of Paragominas, state of Pará (3º 30’S; 48º 45’W) was evaluated. Three gap sizes were considered: small gap (200-
Leonardo Pequeno Reis   +5 more
doaj  

Growth and suitability of some tree species selected for planting in adverse environments in Eritrea and Ethiopia [PDF]

open access: yes, 2005
The thesis addresses some important silvicultural issues raised in Eritrea and Ethiopia and the objective was to evaluate various tree species in terms of growth in adverse environments.
Mehari, Amanuel
core  

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

open access: yesAdvanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang   +14 more
wiley   +1 more source

Modeling stem diameter increment in individual Pinus occidentalis Sw. trees in La Sierra, Dominican Republic.

open access: yes, 2010
One of the most common and important tree characteristics used in forest management decision-making is tree diameter-at-breast height (DBH). This paper presents results on an evaluation of two growth functions developed to model stem diameter increases ...
S. Bueno, E. Bevilacqua
semanticscholar   +1 more source

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