Results 51 to 60 of about 338,609 (329)

Particle Group Metropolis Methods for Tracking the Leaf Area Index

open access: yesICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2020
Monte Carlo (MC) algorithms are widely used for Bayesian inference in statistics, signal processing, and machine learning. In this work, we introduce an Markov Chain Monte Carlo (MCMC) technique driven by a particle filter. The resulting scheme is a generalization of the so-called Particle Metropolis-Hastings (PMH) method, where a suitable Markov chain
Martino, Luca   +2 more
openaire   +4 more sources

Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab   +6 more
wiley   +1 more source

The effect of growth indices in competitive ability of some canola (Brasica napus) cultivars against wild mustard (Sinapis arvensis).

open access: yesپژوهشهای زراعی ایران, 2009
In order to evaluate the interference of wild mustard on growth indices of Canola cultivars an experiment was carried out in Agricultural and Natural Resources Research Institute of Gorgan during 2005-2006 growing season.
ali reza safahani   +4 more
doaj   +1 more source

Achieving improved leaf area index estimations from digital hemispherical imagery through destructive sampling methods [PDF]

open access: yes, 2019
Destructive sampling of 20 trees of four tree species in a mixed New England conifer/hardwood stand shows that leaf area comprises 72, 77, and 78 percent of plant area as measured with digital hemispherical photography of the stand in (1) leaf-off, (2 ...
Condon, Timothy
core  

Evaluation of Argentine wild sunflower biotypes for drought stress during reproductive stage [PDF]

open access: yes, 2012
As in several regions where sunflower production has moved to areas with limiting water availability, the search for water-stress tolerant genotypes has been intensified. Helianthus annuus ssp. annuus L.
Cantamutto, Miguel Ángel   +3 more
core   +1 more source

Surface dose analysis and dosimetric comparison of Halcyon versus Truebeam in breast cancer radiotherapy: An OSL dosimetry study

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Breast cancer is a neoplastic disease with high prevalence among women. Radiotherapy is one of the principal treatment modalities for this disease, but it poses significant challenges. This study aimed to compare and evaluate the technical and dosimetric performance of conventional C‐arm linac systems and a new design, Halcyon, in the ...
Mustafa Çağlar   +8 more
wiley   +1 more source

Growth and chlorophyll indices in seedlings of Calotropis procera (Aiton) W. T. Aiton submitted to different levels of shading

open access: yesAgro@mbiente On-line, 2019
Several abiotic factors may influence the growth and development of forest species. Among these, luminosity is one of the most important, because it affects plant physiological processes and control their metabolism.
Francisco Romário Andrade Figueiredo   +4 more
doaj   +1 more source

Hubungan antara Indeks Luas Daun dengan Iklim Mikro dan Indeks Kenyamanan [PDF]

open access: yes, 2012
Air temperature and temperature humidity index in the urban was recorded as being higher compared to the surrounding area, while on the contrary the humidity is lower.
Rushayati, S. B. (Siti)
core  

Relationship between leaf area index and phisiographical and edaphical condition in a Quercus macranthera stand (Case study: Andebil's forest, Khalkhal) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2009
This study attempted to investigate leaf area index in Quercus macranthera coppice stand. A forest of 278 hectares located at the northeast of Khalkhal was selected as the study region.
Sasan Babaei Kafaki   +2 more
doaj  

Barriers and Facilitators for Implementing Resilience Coaching for Youth With Chronic Musculoskeletal Pain: Pediatric Rheumatologists’ Perspectives

open access: yesArthritis Care &Research, EarlyView.
Objective Promoting Resilience in Stress Management (PRISM) is a resilience coaching program designed for adolescents with chronic illness. We aimed to examine the perceived feasibility, acceptability, and appropriateness of PRISM among pediatric rheumatologists treating adolescents with chronic musculoskeletal pain and obtain recommendations for ...
Sabrina Gmuca   +9 more
wiley   +1 more source

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