Results 31 to 40 of about 2,435,177 (387)
Tails of random sums of a heavy-tailed number of light-tailed terms [PDF]
Insurance: Mathematics and Economics, 2008 The tail of the distribution of a sum of a random number of independent and identically distributed nonnegative random variables depends on the tails of the number of terms and of the terms themselves. This situation is of interest in the collective risk model, where the total claim size in a portfolio is the sum of a random number of claims.
Christian Y. Robert, Johan Segers
openaire +4 more sources
Variable-speed tail rotors for helicopters with variable-speed main rotors [PDF]
, 2017 Variable tail rotor speed is investigated as a method for reducing tail rotor power, and improving helicopter performance. A helicopter model able to predict the main rotor and tail rotor powers is presented, and the flight test data of the UH-60A ...
Barakos, G.N., Han, D.
core +1 more source
Frontiers in Robotics and AI, 2022 Due to the difficulty of manipulating muscle activation in live, freely swimming fish, a thorough examination of the body kinematics, propulsive performance, and muscle activity patterns in fish during undulatory swimming motion has not been conducted ...
Fabian Schwab +8 more
doaj +1 more source
Pensamiento Crítico, 2018 En el presente trabajo se realizará la simulación el efecto de la interdependencia y el contagio en las decisiones de compra y venta de los inversionistasen un mercado financiero de tipo Black-Schole,donde existen dos activos financieros: acciones ...
Jesús Barrantes Limahuaya +2 more
doaj +1 more source
Coordination of opposing sex-specific and core muscle groups regulates male tail posture during Caenorhabditis elegans male mating behavior [PDF]
, 2009 Background To survive and reproduce, animals must be able to modify their motor behavior in response to changes in the environment. We studied a complex behavior of Caenorhabditis elegans, male mating behavior, which provided a model for understanding ...
A Barrios +45 more
core +4 more sources
Helicopter tail rotor thrust and main rotor wake coupling in crosswind flight [PDF]
, 2010 The tail rotor of a helicopter with a single main rotor configuration can experience a significant reduction in thrust when the aircraft operates in crosswind flight. Brown’s vorticity transport model has been used to simulate a main rotor and tail rotor
Balch D. T. +9 more
core +1 more source
Long-tail Relation Extraction via Knowledge Graph Embeddings and Graph Convolution Networks [PDF]
North American Chapter of the Association for Computational Linguistics, 2019 We propose a distance supervised relation extraction approach for long-tailed, imbalanced data which is prevalent in real-world settings. Here, the challenge is to learn accurate “few-shot” models for classes existing at the tail of the class ...
Ningyu Zhang +6 more
semanticscholar +1 more source
Cartilage and Muscle Cell Fate and Origins during Lizard Tail Regeneration
Frontiers in Bioengineering and Biotechnology, 2017 IntroductionHuman cartilage is an avascular tissue with limited capacity for repair. By contrast, certain lizards are capable of musculoskeletal tissue regeneration following tail loss throughout all stages of their lives.
Ricardo Londono +4 more
doaj +1 more source
Frontiers in Earth Science, 2020 Dinosaur locomotion and biomechanics, especially of their pelvic girdles and hindlimbs, have been analyzed in numerous studies. However, detailed volumetric musculoskeletal models of their tails are rarely developed.
Verónica Díez Díaz +6 more
doaj +1 more source