Results 101 to 110 of about 66,871 (307)

Small dilatation homeomorphisms as monodromies of Lorenz knots

, 2013
to appear in the Proceeding of the Institut Mittag-LefflerInternational audienceWe exhibit low-dilatation families of surface homeomorphisms among monodromies of Lorenz ...
Dehornoy, Pierre
core   +1 more source

Illuminating new and known relations between knot invariants

Machine Learning: Science and Technology
We automate the process of machine learning correlations between knot invariants. For nearly 200 000 distinct sets of input knot invariants together with an output invariant, we attempt to learn the output invariant by training a neural network on the ...
Jessica Craven, Mark Hughes, Vishnu Jejjala, Arjun Kar   +3 more
doaj   +1 more source

Signature and concordance of positive knots

, 2017
We derive a linear estimate of the signature of positive knots, in terms of their genus. As an application, we show that every knot concordance class contains at most finitely many positive ...
Pierre Dehornoy, Livio Liechti, Liechti, Livio, Sebastian Baader, Baader, Sebastian, Dehornoy, Pierre, Liechti, Nicola Livio   +6 more
core   +1 more source

Unpacking the Farmland Capitalization Effect of Ethanol Establishment

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT We unpack the impact of expansions in ethanol production—as measured by proximity to newly constructed ethanol plants and capacity expansions—on farmland values using land transaction data from Kansas in combination with modern causal inference techniques.
Gabriel S. Sampson, Jisang Yu
wiley   +1 more source

Knot soundness and occlusion time after the artificial pruning of oak

Leśne Prace Badawcze, 2019
Artificial pruning of trees can improve wood quality as well as enhance timber value. Currently, pruning is quite common when veneer timber or plywood is in demand.
Mederski Piotr S., Szczawiński Dariusz, Giefing Dieter F., Naparty Kwiryn, Brunka Mariusz   +4 more
doaj   +1 more source

Rapid Detection of Knot Defects on Wood Surface by Near Infrared Spectroscopy Coupled with Partial Least Squares Discriminant Analysis

BioResources, 2016
Natural defects, especially knots, on the surface of veneers have a great influence on the sorting and degradation of veneers. To realize rapid and accurate knot detection, a study on the possibility of detecting knots was carried out. Samples of poplar,
Zhong Yang, Maomao Zhang, Kang Li, Ling Chen   +3 more
doaj   +1 more source

Crop Insurance Design and On‐Farm Risk Adaptation

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The United States spends billions annually on crop insurance premium subsidies, yet the prevailing distance‐based guarantee design unintentionally rewards risk‐taking by linking subsidies to yield variability. We consider a simple redesign: define guarantees in terms of probability so that coverage reflects a consistent likelihood of indemnity.
Gerald Van Tassell, Alan P. Ker
wiley   +1 more source

Evaluation of Experienced Manipulation Characteristics in Robotic Surgery Using Log Data From the Hinotori Surgical System

Annals of Gastroenterological Surgery, EarlyView.
This study analyzed log data from the Japanese hinotori surgical robot to characterize manipulation performed by experienced surgeons in robotic surgery. Compared with less‐experienced surgeons, the experienced group demonstrated shorter task durations, reduced travel distances with the right instrument (Arm3), faster and more dynamically modulated ...
Masaki Saito, Shunsuke Hayakawa, Hiroyuki Sagawa, Tamiaki Kondo, Masanao Ohashi, Sunao Ito, Reo Sato, Hajime Ushigome, Kenta Saito, Ryo Ogawa, Hiroki Takahashi, Shuji Takiguchi   +11 more
wiley   +1 more source

Wood Knots Influence the Modulus of Elasticity and Resistance to Compression

Floresta e Ambiente, 2018
The objective of this study was to establish the correlation between the size of the wood knots and the modulus of elasticity (MOE) and the compressive strength (Fc) in Eucalyptus wood.
Maria Fernanda Vieira Rocha, Lívia Ribeiro Costa, Luciano Junqueira Costa, Ana Clara Caxito de Araújo, Bruno Charles Dias Soares, Paulo Ricardo Gherardi Hein   +5 more
doaj   +1 more source

Knots in handlebodies with handlebody surgeries

, 2012
textWe give examples of knots in a genus 2 handlebody which have nontrivial Dehn surgeries yielding handlebodies and show that these knots are not 1--bridge ...
Bowman, Richard Sean
core