Results 51 to 60 of about 2,869,605 (252)

An Active Knee–Ankle–Foot Orthosis With Torque‐Dense, Low‐Impedance Knee Actuation

Advanced Intelligent Systems, EarlyView.
This article presents the simulation, design, and clinical validation of a robotic active KAFO with torque‐sensitive actuation. By passively and continuously adapting the transmission ratio in response to the knee torque, the torque‐sensitive actuator overcomes the tradeoff between torque, weight, and impedance observed in conventional robot actuators,
Brendon Ortolano, Kai Pruyn, Rosemarie Murray, Lukas Gabert, Tommaso Lenzi   +4 more
wiley   +1 more source

Optimal cubature formulas for approximate integrals of functions defined on a sphere in three-dimensional space [PDF]

E3S Web of Conferences
The development of effective methods of approximate calculation of integrals using optimal cubature formulas and optimal quadrature formulas with trigonometric weights for defined functions on a sphere, the creation of new algorithms for approximate ...
Bozarov Bakhromjon, Daliyev Bakhtiyor, Tukxtasinov Dadakhon, Nasriddinov Otadavlat, Ruzimatova Makhfuza, Botirova Nasiba   +5 more
doaj   +1 more source

A New Recursive Trigonometric Technique for FPGA-Design Implementation

Sensors, 2023
This paper presents a new recursive trigonometric (RT) technique for Field-Programmable Gate Array (FPGA) design implementation. The traditional implementation of trigonometric functions on FPGAs requires a significant amount of data storage space to ...
Xing Xing, Wilson Wang
doaj   +1 more source

Balancing Exploration and Exploitation Through a Sequential Hybrid of Roach Infestation and Mayfly Algorithms for Constrained Engineering Design Optimization

AI &Innovation, EarlyView.
ABSTRACT Maintaining an effective balance between exploration and exploitation is essential during optimization processes, from mathematical functions to more complex problems such as constrained engineering design optimization, particularly when addressing highly nonlinear issues with numerous local optima and strict feasibility requirements.
Enrique Lizárraga, Fevrier Valdez, Oscar Castillo, Patricia Melin   +3 more
wiley   +1 more source

Trigonometric functions and power series [PDF]

, 2020
Trigonometric functions are most often introduced geometrically by either using ratios of lengths of sides in right angle triangles or using coordinates of points on the unit circle.
Frantar, Špela
core  

Pelvic Obliquity Impacts Acetabular Coverage Measurements, and the Elevated Hip Is More Frequently Symptomatic in Hip Preservation Patients

Arthroscopy, Sports Medicine, and Rehabilitation, EarlyView.
Purpose To quantify the impact of femoral head height discrepancies on pelvic‐based versus ground‐based measurements for lateral center‐edge angle (LCEA) and Tönnis angle and to determine whether these discrepancies affected the clinical presentation of patients who presented to a hip preservation clinic.
Benjamin T. Johnson, Daniel C. Lewis, Allan K. Metz, Ashley L. Matter, Christopher L. Peters, Lucas A. Anderson, Stephen K. Aoki   +6 more
wiley   +1 more source

The epistemic ceiling: Veteran practitioners' perspectives on primary qualification entry standards for teaching secondary mathematics in Scotland

British Educational Research Journal, EarlyView.
Abstract This paper presents an exploratory analysis of contemporary curricular and professional qualification policies in the Scottish education system, focusing on minimum qualification thresholds for mathematics teaching. The study examines how veteran secondary mathematics practitioners perceive the structural and pedagogical implications of using ...
Paul Argyle McDonald
wiley   +1 more source

Algorithms for Calculating Generalized Trigonometric Functions

Algorithms
In this paper, algorithms for calculating different types of generalized trigonometric and hyperbolic functions are developed and presented. The main attention is focused on the Ateb-functions, which are the inverse functions to incomplete Beta-functions.
Ivanna Dronyuk
doaj   +1 more source

Convexity properties of generalized trigonometric and hyperbolic functions

, 2013
We study the power mean inequality for generalized trigonometric and hyperbolic functions with two parameters. The generalized p-trigonometric and (p, q)-trigonometric functions were introduced by Lindqvist and Takeuchi ...
Baricz, Árpád, Bhayo, Barkat Ali, Klén, Riku   +2 more
core   +1 more source

The life and work of Ernest Sydney Keeping

Canadian Journal of Statistics, EarlyView.
Abstract This article reviews the life and contributions of Ernest S. Keeping (1895–1984), a British‐born physicist who became a mathematics professor at the University of Alberta in 1929. He played a pivotal role in shaping the university's Mathematics Department, serving as its head from 1954 to 1961, and continuing to teach until 1970, nine years ...
David R. Bellhouse, Christian Genest
wiley   +1 more source