Results 141 to 150 of about 2,687,568 (346)

Effect of Rapid or slow release nitrogen supply and cover crop/weed management on crop yield, pest incidence and fruit quality in intensive organic apple production [PDF]

open access: yes, 2007
Apple is the commercially most important top fruit crop grown in the European Union. In spring 2001 one-year-old trees of the apple variety ‘Ingrid Marie’ were established in an organic production system with 3.0 m between the tree rows.
Lindhard Pedersen, H.
core  

Predicting Aggregation Behavior of Nanoparticles in Liquid Crystals via Automated Data‐Driven Workflows

open access: yesAdvanced Functional Materials, EarlyView.
Herein, a comprehensive framework that enabled the optimization of colloidal solubility within a high‐dimensional parameter space and study of reversible assembly processes is developed. This data‐driven workflow integrated innovations including the robotic platform for automated AuNPs functionalization, machine learning for predicting and revealing ...
Yueyang Gao   +5 more
wiley   +1 more source

What should be included in an ecotourism rating system for protected areas? [PDF]

open access: yesAfrican Journal of Hospitality, Tourism and Leisure, 2017
South Africa has various rating systems / schemes for tourism related enterprises, however there are no acknowledged rating systems for ecotourism products in South Africa National Parks.
P. Van der Merwe   +2 more
doaj  

Boosting-Based Sequential Meta-Tree Ensemble Construction for Improved Decision Trees [PDF]

open access: yesarXiv
A decision tree is one of the most popular approaches in machine learning fields. However, it suffers from the problem of overfitting caused by overly deepened trees. Then, a meta-tree is recently proposed. It solves the problem of overfitting caused by overly deepened trees.
arxiv  

On the Minimum Size of a Contraction-Universal Tree [PDF]

open access: yesarXiv, 2009
A tree T_uni is m-universal for the class of trees if for every tree T of size m, T can be obtained from T_uni by successive contractions of edges. We prove that a m-universal tree for the class of trees has at least mln(m) + (gamma-1)m + O(1) edges where is the Euler's constant and we build such a tree with less than mc edges for a fixed constant c ...
arxiv  

Flux‐Regulated Crystallization of Perovskites Using Machine Learning‐Predicted Solvent Evaporation Rates for X‐Ray Detectors

open access: yesAdvanced Functional Materials, EarlyView.
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto   +8 more
wiley   +1 more source

Determining the impact of green management policies on hotel performance: A manager’s perspective. [PDF]

open access: yesAfrican Journal of Hospitality, Tourism and Leisure, 2018
This paper examines the possibility of a link between green management policies and hotel performance in two Sub-Saharan developing countries from the manager’s perspective. The impact of green management policies on hotel performance has raised ongoing
Dr Miriam Mbasera   +3 more
doaj  

Antioxidant and Anti‐Senescence Polyvinyl Alcohol‐Gallic Acid Supramolecular Hydrogels for Stem Cell Culture

open access: yesAdvanced Healthcare Materials, EarlyView.
The PVA‐GA hydrogel is formed through hydrogen bonding between PVA hydroxyl groups and GA galloyl units, enabling sustainable GA release and its extended biological activity. The hydrogel scavenges ROS to reduce oxidative stress, preventing mitochondrial damage from excessive ROS, mitigating hADSC senescence, and preserving VEGF secretion, offering a ...
Yiduo Zhou   +11 more
wiley   +1 more source

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