Results 81 to 90 of about 72,518 (297)

A lightweight clear liquid optical chamber baited remote underwater video system for monitoring fish in turbid coastal wetlands

Limnology and Oceanography: Methods, EarlyView.
Abstract Clear liquid optical chamber baited remote underwater video systems (CLOC‐BRUV) are an effective option for assessing fish assemblages in turbid water, but current designs are limited by their large size and high operational costs. We developed a lightweight CLOC‐BRUV unit and evaluated its performance through proof‐of‐concept trials and field
Hsin‐Wei Huang, Yu‐Jia Lin, Jing‐Ying Wu, Meng‐Hsien Chen   +3 more
wiley   +1 more source

Behaviour of Steel Ropes in Multi-Sheave Systems of Tower Crane Hositing Mechanisms

Management Systems in Production Engineering
This article discusses issues related to tower cranes, a group of lifting machines used in the construction industry. Vertical transport on a building site is of paramount importance, accounting for approximately 50% of all construction works. Currently,
Midor Łukasz, Olszyna Grzegorz, Rokita Tomasz, Tytko Andrzej   +3 more
doaj   +1 more source

Operation Trajectory Planning and Path Power Optimization Control of Electric Quay Crane in Ports

Shanghai Jiaotong Daxue xuebao
To address the issues of high peak power demand and low energy conversion efficiency in electric quay cranes at ports, a method for trajectory planning and path power optimization control of electric quay cranes is proposed.
LOU Jiahui, HUANG Wentao, YANG Huanhong, YU Moduo, YANG Yayu
doaj   +1 more source

Performance Evaluation and Optimization of Injection Molding Using the SMED Method

Macromolecular Symposia, EarlyView.
ABSTRACT Continuous improvement in manufacturing requires systematic performance evaluation and targeted optimization actions. This paper presents the application of the SMED (Single Minute Exchange of Die) methodology for performance evaluation and optimization in an injection molding production environment.
Andrada Ioana Hăbuc, Gabriel Daniel Stanca, Miron Zapciu   +2 more
wiley   +1 more source

Kesan penggunaan e-konkrit berasaskan model needham lima fasa terhadap kesesuaian isi kandungan dan pencapaian pelajar [PDF]

, 2020
Kaedah pengajaran memainkan peranan yang penting di dalam meningkatkan tahap kefahaman pelajar. Kaedah pengajaran konvensional sedia ada kurang menarik perhatian pelajar jika ianya hanya melibatkan interaksi satu hala e-Pembelajaran merupakan salah satu ...
Ariffin, Arihasnida, Hamzah, Norhasyimah, Hasman, Noridah, Rubani, Siti Nur Kamariah, Zakaria, Normah   +4 more
core  

Single Smooth Waveform Command‐Shaping Control of Overhead Crane Systems Utilizing Two‐Stage Acceleration–Deceleration Profile for Short‐Moving Point‐to‐Point Maneuver

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Modern industrial demand for efficient material handling in confined spaces has driven the need for overhead cranes capable of short‐distance point‐to‐point maneuvers without compromising payload stability. Conventional three‐stage shaper profiles, experiencing acceleration, cruising, and deceleration, become inefficient or infeasible for ...
Mohammed Alfares, Jasem Baroon, Khaled Alhazza   +2 more
wiley   +1 more source

DESIGN AND REALIZATION OF A HAPTIC CRANE FORCE CONTROL FOR APPLICATION OF MATERIAL HANDLING BY USING ACTIVE FORCE CONTROL (AFC) [PDF]

, 2010
The final project highlights a method for controlling a haptic crane and hoist model based on an Active Force Control (AFC) strategy. It is a disturbance rejection control technique in which AFC is employed to control accurately and robustly the trolley ...
Ningrum, Endah Suryawati, Purnomo, Didik Setyo, Tamara, Mohamad Nasyir   +2 more
core  

Using a social‐ecological macrosystems framework to understand how human activities alter ecological synchrony

People and Nature, EarlyView.
Abstract Different aspects of ecological systems, biotic or abiotic, often fluctuate in coordinated patterns over space and time. Such high concordance between ecological processes is often referred to as ecological synchrony. Human activities, including and beyond climate change, have the potential to alter ecological synchrony by disrupting or ...
Yiluan Song, Mallory Barnes, K. Ann Bybee‐Finley, Kyla M. Dahlin, Travis McDevitt‐Galles, Stephan B. Munch, Guillermo E. Ponce‐Campos, Casey Youngflesh, Benjamin Zuckerberg, Kai Zhu   +9 more
wiley   +1 more source

Digitizing collections to unlock the full potential of palynology: A case study with the Smithsonian palynology collection

PLANTS, PEOPLE, PLANET, EarlyView.
Large palynological collections have been built over decades and contain vital information. However, they are often difficult to access and use effectively. What is the point of having such collections if they are not fully utilizable? To solve this problem, we digitized the Smithsonian palynological collection using both light and confocal microscopy.
Carlos Jaramillo, Surangi W. Punyasena, Daurys de Alba, Roxana Alveo, Angelica Arcila, Jorge Bermudez, Jonatan Bustos, Dayenari Caballero‐Rodriguez, Karen Cardenas, David Caro, Francy Carvajal, Ivonne Marcela Castañeda, Shara Chaves, Carlos D'Apolito, Andres Diaz‐Jaramillo, Laura Diaz, Luisa Gomez, Mauricio León‐Carreño, Paula Lopera, Maria Alejandra Lopez, Priscila Lopez, Luke Mander, Jhonatan Martínez Murcia, Carlos Moreno, Enrique Moreno, Enrique Neyra, Brenda Orosco, Jhon Ortiz, Natalia Ossa, Natalia Ovalle, Carolina Ovalle, Angelo Plata, Ingrid Romero, Bruno Scudeiro, Silane A. F. da Silva Caminha, Axel Tejada‐Fajardo, Vinicius Do Valle, Thiago Wood   +37 more
wiley   +1 more source

Proposed technique for vertical alignment of a crane's cable [PDF]

, 1969
Proposed vertical alignment technique senses the attitude of a cranes cable and displays any deviation from the vertical. The system consists of a detector assembly fixed to the boom and a display scope located in the cabin.
Gera, J., Jr.
core   +1 more source