Results 31 to 40 of about 496 (184)

Receiver tilt: a scourge for aquatic telemetry or useful predictor variable

Animal Biotelemetry, 2021
Background Water current data can be a useful predictor variable to include in acoustic telemetry studies given its link to changes in fish behaviour.
Alistair Becker, Michael B. Lowry, Matthew D. Taylor   +2 more
doaj   +1 more source

String Figuring young children's perspectives of quality in English early childhood education and care

British Educational Research Journal, EarlyView.
Abstract Quality in early childhood education and care (ECEC) is a contested concept and has generally been conceptualised by inter‐related indicators such as staff qualifications, educational environment, policy or child‐to‐staff ratios. There has been a more limited emphasis on how young children might perceive and experience quality.
Nikki Fairchild, Éva Mikuska
wiley   +1 more source

Load vibration reduction in rotary cranes using robust two-degree-of-freedom control approach

Advances in Mechanical Engineering, 2016
In the control of the rotary crane, it is important to consider the trade-off between the boom positioning characteristics and the sway of the load. However, it seems difficult to obtain good control performance in both of them using 1-degree-of-freedom ...
Huimin Ouyang, Guangming Zhang, Lei Mei, Xin Deng, Deming Wang   +4 more
doaj   +1 more source

Enhanced overhead crane control using ADRC and ZVD input shaping with trajectory planning [PDF]

FME Transactions
Overhead crane control with time-varying cable length presents significant challenges, particularly in maintaining accurate trolley positioning while minimizing residual payload oscillations induced by lifting and lowering operations. This paper proposes
van Dong Nguyen, Duong Minh Duc, Do Trong Hieu   +2 more
doaj   +1 more source

Hybrid machine learning and genetic algorithm approach for catalyst and process optimization in Fischer–Tropsch synthesis toward sustainable fuel production

The Canadian Journal of Chemical Engineering, EarlyView.
Graphical representation of a data‐driven framework for Fischer‐Tropsch synthesis (FTS) modelling and optimization. Abstract This study presents a data‐driven approach for predicting the relationships between catalyst design, process conditions, and product selectivity in Fischer–Tropsch synthesis (FTS).
Doaa M. Hassan, Ryan Gosselin, Nicolas Abatzoglou   +2 more
wiley   +1 more source

Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast

Ecography, EarlyView.
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri, Alistair G. B. Poore, Oscar Pino, Nicolás Riquelme, Wolfgang B. Stotz, Fadia Tala, Martin Thiel   +6 more
wiley   +1 more source

Free vibration analysis of a string with vibration suppressors located at 1/N from both ends of the string (When N is an odd number)

Nihon Kikai Gakkai ronbunshu, 2016
A vibration suppressor is used to change the natural frequency of an elevator rope, and to prevent resonance. The elevator rope is modeled using a string. Linear string vibration is well known.
Hiroyuki KIMURA
doaj   +1 more source

Aftasten/Tantear: A sensorial, coalitional wayfinding among Muslim runners

Feminist Anthropology, EarlyView.
Abstract Muslim recreational runners in Muslim‐minority settings that take up running as their preferred form of leisure indicate that they feel they have to navigate a sense of exclusion when running outdoors. This article explores the process of exploration and sensing in public, represented by the Dutch verb aftasten, to investigate the way Muslim ...
Jasmijn Rana
wiley   +1 more source

Robust Control of Offshore Container Cranes: 3D Trajectory Tracking Under Marine Disturbances

Machines
This paper develops accurate three-dimensional trajectory tracking and anti-sway control strategies for offshore container cranes operating in an open-sea environment.
Ao Li, Shuzhen Li, Phuong-Tung Pham, Keum-Shik Hong   +3 more
doaj   +1 more source

Vibration analysis of elevator rope with one vibration suppressor

Nihon Kikai Gakkai ronbunshu, 2018
When an elevator rope for a high-rise building is forcibly excited by the displacements of the building induced by wind forces and/or by long-period ground motion, rope displacement becomes large even if the ground acceleration and the buildings ...
Takahiro FUJITANI, Hiroyuki KIMURA
doaj   +1 more source