Results 61 to 70 of about 59,880 (209)

Dynamic Analysis of Electrically Assisted Turbocharger Rotor Considering Contact Effects in Nut Structures

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The rotor system of an electrically assisted turbocharger (EAT) is composed of multiple shaft components; The nonlinear connection and contact effects make it difficult to determine the system dynamic characteristics. To improve the modeling accuracy of EAT rotor system and evaluate the influence of contact between multi‐axis components and ...
Wenchao Liang, Shuqian Cao, Xiaolin Cao, Mingyue Hu, Yanhong Kang, Tianyou Wang   +5 more
wiley   +1 more source

Free vibration analysis of a string with vibration suppressor located at 1/N 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, Yuuki TAKIMAE
doaj   +1 more source

Designing ZV and ZVD Input Shapers Using the Designed Fixed Output Response Method to Suppress Residual Vibration of Overhead Crane Systems With Trolley Traveling and Payload Hoisting

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Classical Zero Vibration (ZV) and Zero Vibration and Derivative (ZVD) input shapers are designed around a fixed nominal natural frequency and cannot accommodate the time‐varying dynamics introduced when an overhead crane simultaneously travels and hoists a payload.
Mohammad Alfares, Khaled Alhazza
wiley   +1 more source

How can children and young people have a voice in urban treescapes?

People and Nature, EarlyView.
Abstract Scientific understanding of climate change has, to date, failed to result in sufficient action. This paper proposes that a deficit model of top‐down learning and dissemination in relation to public engagement with science may be part of the problem, particularly when considering the attitudes, values and empowerment of children and young ...
Simon Carr, Abi Hackett, Kate Pahl, Samyia Ambreen, Khawla Badwan, Elizabeth Curtis, Susannah Gill, Ambika Kapoor, Peter Lawrence, Johan Siebers, Jan White   +10 more
wiley   +1 more source

Real-Time Wire Rope Inclination Detection Using YOLOv9-Based Camera–LiDAR Fusion for Overhead Cranes

Journal of Marine Science and Engineering
Safe and efficient cargo handling is essential in modern port logistics, where overhead cranes are widely used to move containers, bulk materials, and heavy equipment.
Anh-Hung Pham, Ga-Eun Jung, Xuan-Kien Mai, Byeong-Soo Go, Seok-Ju Lee   +4 more
doaj   +1 more source

Free vibration analysis of a string with vibration suppressor

Nihon Kikai Gakkai ronbunshu, 2014
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.
Hiroyuki KIMURA
doaj   +1 more source

Nutritional properties, traditional uses and potential new applications for the sotol plant (Asparagaceae, Convallarioideae): A review

PLANTS, PEOPLE, PLANET, EarlyView.
Sotol (Dasylirion spp.) is a resilient desert plant that sustains ecosystems, cultures and livelihoods in Chihuahua Desert. Our review highlights its nutritional properties, traditional uses and potential new applications in food, pharmaceuticals, renewable energy and water remediation. By synthesizing evidence across disciplines, we show how sotol can
Dámaris Leopoldina Ojeda Barrios, Antonio Martínez Ruiz, Marisela Calderón Jurado, Ramón Saúl Luján Aguirre, Juan Luis Jacobo Cuellar, Oscar Sariñana‐Aldaco, María Teresa Martínez Damián, Oscar Cruz Alvarez   +7 more
wiley   +1 more source

Anti-Sway Control for Haptic Crane for Application of Material Handling by Using Active Force Control (AFC) [PDF]

, 2010
This paper focuses on anti-sway control system for haptic crane that uses accelerometer and weight sensor as sway sensor and mass calculation of payload. The control method proposed is AFC which is able to control more accurate and robust while transport
Alasiry, Ali Husein, Tamara, Mohamad Nasyir, Ningrum, Endah Suryawati, Purnomo, Didik Setyo   +3 more
core  

From traditional practice to unsustainable exploitation: Fruit overharvesting on the endangered relict palm Jubaea chilensis

PLANTS, PEOPLE, PLANET, EarlyView.
Overharvesting of wild edible plants poses a growing threat to plant populations worldwide, particularly for slow‐growing species with limited regeneration. We quantified fruit extraction from the third‐largest known population of Jubaea chilensis—an endangered palm endemic to Chile—modeled the critical harvest threshold, and assessed consumer ...
Sebastián Cordero, Francisca Gálvez, Marisol Arriagada‐Honores, Andrés Jesús Garrido, Daniela Paredes‐Muñoz, Bastián Fuentes‐Valdés, Fernanda Torres‐Cifuentes, Francisco E. Fontúrbel   +7 more
wiley   +1 more source

Modelling and dynamic analysis of an integrated hydraulic forest crane-winch system for timber extraction [PDF]

FME Transactions
This paper details the dynamic modelling and analysis of an integrated hydraulic forest crane-winch system used for timber extraction, concentrating on transient behaviour during winch activation from rest.
Loveikin Viacheslav, Romasevych Yuriy, Bakay Borys, Rudko Ihor, Radiak Ivan   +4 more
doaj   +1 more source