Results 61 to 70 of about 167,242 (280)

Butterflies of curriculum realisation: Investigating early implementation of the Curriculum for Wales

open access: yesThe Curriculum Journal, EarlyView.
Abstract Curriculum reform provides a vital opportunity for nations to ensure learners are equipped to fully participate as citizens in the 21st century. This paper presents an understanding of educators’ response to curriculum reform, and some of its enablers and barriers.
Alison Glover   +5 more
wiley   +1 more source

A New Approach for Solving Nonlinear Oscillations with an m-Degree Odd-Power Polynomial Restoring Force

open access: yesDynamics
Solving nonlinear oscillations is challenging, as solutions to the corresponding differential equations do not exist in most cases. Therefore, numerical methods are usually employed to calculate the precise oscillation frequency.
Stylianos Vasileios Kontomaris   +4 more
doaj   +1 more source

Dual Mass Flywheel Parameter Identification

open access: yesJournal of Mechanical Engineering, 2021
Reducing emissions brings changes in the design of internal combustion engines and thus new challenges for dual-mass flywheels (DMF) in terms of Noise Vibration and Harshness (NVH).
Ľuboš Magdolen   +5 more
doaj   +1 more source

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

open access: yesDeep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao   +3 more
wiley   +1 more source

Sequence‐to‐sequence alignment using a pendulum

open access: yesIET Computer Vision, 2015
Analysing two or more video sequences of dynamic scenes typically requires time synchronisation between sequences, where this alignment is not always possible using hardware.
Tomislav Pribanic   +2 more
doaj   +1 more source

Triboelectric–Electromagnetic Generator‐Enabled Hybrid Power Backpack for Self‐Powered Field Safety Management

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A lightweight hybrid backpack integrating SC‐TENGs and R‐EMGs harvests biomechanical energy during walking. With a low activation speed of 3 km h−1 and a high specific power of 0.18 W kg−1, it enables self‐powered field safety management. The power backpack refers to an energy‐harvesting solution engineered to mitigate battery reliance in wearable ...
Jie Chen   +6 more
wiley   +1 more source

Study on the Influence Factors of Performance of the 3D Hydraulic Oscillator

open access: yesShiyou jixie, 2016
To address the large friction of slide drilling,a three-dimensional hydraulic oscillator has been designed under the principle of current axial oscillation and the drill string pendulum friction release.The three-dimensional hydraulic oscillator working ...
吕加华   +6 more
doaj  

FLUCTUATIONS OF THE CARGO TRANSPORTED BY LIFTING CRANE: SIMULATION AND ANALYSIS

open access: yesВестник СибАДИ, 2019
Introduction. Reducing fluctuations in the load transported by hoisting cranes with a flexible rope suspension of the load is an urgent task since it can significantly reduce the time taken to complete the operation of moving the load.
M. S. Korytov   +2 more
doaj   +1 more source

Shaking Table Tests and Numerical Analysis of Rocking Vault‐Shaped Segmental Piers Equipped With an Annular Double Sliding System

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT To enhance the structural robustness of bridges, a rocking arch‐shaped segmental pier with a double sliding system was previously proposed as a low‐cost solution to protect bridges in developing countries. The rocking behavior is triggered by halting the sliding motion, which increases the horizontal load‐bearing capacity and limits ...
Shengming Feng   +6 more
wiley   +1 more source

Induced abortion in the world: 3. In search of a minimum common ground

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract The rising worldwide trend toward legalization of termination of pregnancy has been accompanied by increased polarization around abortion. Two opposite broad coalitions emerged from this confrontation, generally known as the “pro‐life” and “pro‐choice” movements. The basic issue for pro‐life advocates is that the protection of “innocent, human
Giuseppe Benagiano   +4 more
wiley   +1 more source

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