Results 131 to 140 of about 4,620 (298)

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

open access: yesDeep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza   +4 more
wiley   +1 more source

Tentiform leaf miner on pears: Codling moth and spider mites affected by treatments in leaf miner control studies in Bartlett pear orchard near Penryn

open access: yesCalifornia Agriculture, 1955
Approach to the problem of tentiform leaf miner control was changed during the 1954 season—from that of previous seasons—in the continuing studies in the Auburn area.
H Madsen, J DeTar
doaj  

Chemical Composition and Bioinsecticidal Effects of Thymus zygis L., Salvia officinalis L. and Mentha suaveolens Ehrh. Essential Oils on Medfly Ceratitis capitata and Tomato Leaf Miner Tuta absoluta. [PDF]

open access: yesPlants (Basel), 2022
Zerkani H   +10 more
europepmc   +1 more source

Probabilistic prediction of rate‐dependent rock strength using natural gradient boosting and Gaussian process regression

open access: yesDeep Underground Science and Engineering, EarlyView.
Probabilistic natural gradient boosting and Gaussian process regression models accurately predict rate‐dependent rock strength across lithologies. Static strength and strain rate dominate, while geometric factors have minimal influence, enabling interpretable and uncertainty‐aware predictions for dynamic geomechanical applications. Abstract The dynamic
Hadi Fathipour‐Azar
wiley   +1 more source

The Ecological Studies on the Corn-linear Leaf-miner, Phytomyza nigra MEIGEN (I) : The Temperature Limit of Activity and the Diurnal Activity of the Corn-linear Leaf-miner

open access: yes, 1953
The investigations were carried out to know the temperature limit of activity, the locomotive velocity and the diurnal activity of the fly of the corn-linear leaf-miner, Phytomyza nigra MEIGEN. The results may be summarized as follows : 1.
笹川, 満廣   +3 more
core  

Explainable hybrid stacking ensemble method for hard rock pillar stability prediction and engineering applications

open access: yesDeep Underground Science and Engineering, EarlyView.
This research proposes an interpretable hybrid stacking ensemble framework, optimized by the Sparrow Search Algorithm, to enhance hard rock pillar stability prediction. By integrating six machine learning models—k‐nearest neighbors, support vector machines, random forests, Gradient Boosting Decision Tree, eXtreme Gradient Boosting, and Light Gradient ...
Ning Wang   +3 more
wiley   +1 more source

PondNet – towards a global network of experiments on the effects of climate change on aquatic ecosystems

open access: yesEcography, EarlyView.
Global change is reshaping the distribution of biodiversity and the functioning of ecosystems. Predicting the long‐term consequences of such changes remains a challenge due to a need for a clear understanding of the mechanisms underpinning ecosystem‐level responses, as well as the role of geographical and environmental contingencies.
Miguel G. Matias   +15 more
wiley   +1 more source

Spatial and temporal dynamics of coffee-leaf-miner and predatory wasps in organic coffee field in formation Dinâmica espacial e temporal do bicho-mineiro do cafeeiro e da vespa predadora em plantação de café orgânico em formação

open access: yesCiência Rural, 2011
The coffee production is an economic mainstay for many countries in the world. Brazil is the world's largest producer and exporter of coffee, being responsible for about 25% of the world production.
João Domingos Scalon   +3 more
doaj  

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