Results 21 to 30 of about 534,364 (333)

NEW CRANE BUMPER DESIGN WITH AN ENERGY ABSORPTION DEVICE SYSTEM [PDF]

open access: yesTransport Problems, 2022
This article presents research carried out using physical data from the experimental construction of an overhead crane. This article aims to determine the dynamic behaviour of the cart-pendulum system when the hoisting mechanism hits the new bumper ...
Tomasz HANISZEWSKI   +3 more
doaj   +1 more source

Digital twin based condition monitoring of a knuckle boom crane: An experimental study

open access: yesEngineering Failure Analysis, 2020
This paper presents a novel approach for implementation of a digital twin for condition monitoring of a small-scale knuckle boom crane. The digital twin of the crane is simulated real-time in a nonlinear finite element (FE) program, where the estimated ...
Torbjørn Moi   +2 more
semanticscholar   +1 more source

Crane Lifting Optimization and Construction Monitoring in Steel Bridge Construction Project Based on BIM and UAV

open access: yesAdvance in Civil Engineering, 2021
Modular construction methods are adopted in many spatial and temporal limited projects. As the major equipment used in modular construction, the mobile crane affects the safety and efficiency of construction significantly. Currently, building information
Jiahao Tian   +4 more
semanticscholar   +1 more source

Gastrointestinal parasites of a reintroduced semi-wild plains bison (Bison bison bison) herd: Examining effects of demographic variation, deworming treatments, and management strategy

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2021
Bison (Bison spp) are being reintroduced into semi-wild, spatially constrained herds across North America and Europe. Herd managers are concerned about gastrointestinal (GI) nematode parasites as they care for the health of their bison.
Joshua D. Wiese   +5 more
doaj   +1 more source

Influences of submerged plant collapse on diet composition, breadth, and overlap among four crane species at Poyang Lake, China

open access: yesFrontiers in Zoology, 2021
Interannual variation in resource abundance has become more unpredictable, and food shortages have increasingly occurred in the recent decades. However, compared to seasonal fluctuations in resource abundance, the influences of interannual variation in ...
Jinjin Hou   +6 more
semanticscholar   +1 more source

Two-Stage Revision ACL Reconstruction with Arthroscopic Tunnel Bone Grafting

open access: yesVideo Journal of Sports Medicine, 2023
Background: Anterior cruciate ligament (ACL) reconstruction is a common orthopedic surgery, and due to the increased number of primary reconstructions being performed, the number of revision ACL reconstructions is also increasing.
Ryan H. Barnes MD   +3 more
doaj   +1 more source

Structural Improvement in Crane Boom Rest

open access: yesInternational Journal of Innovative Science and Research Technology
Crane boom rests are critical components that endure both static and dynamic loads, leading to deformation and a shortened lifespan. This paper addresses these issues by proposing a redesigned model with enhanced stiffness and load-bearing capacity.
CA Thulasi Dharan   +4 more
semanticscholar   +1 more source

On relativistic spin network vertices [PDF]

open access: yes, 1998
Barrett and Crane have proposed a model of simplicial Euclidean quantum gravity in which a central role is played by a class of Spin(4) spin networks called "relativistic spin networks" which satisfy a series of physically motivated constraints.
Reisenberger, Michael P.
core   +3 more sources

Crane operations and planning in modular integrated construction: Mixed review of literature

open access: yes, 2020
Cranes are the centrepiece of construction equipment during the on-site installation stage of Modular integrated construction (MiC). Any disruption which occurs during this stage can wipe away the efforts made in the production and transportation stages,
M. Hussein, T. Zayed
semanticscholar   +1 more source

Spin foam model from canonical quantization

open access: yes, 2007
We suggest a modification of the Barrett-Crane spin foam model of 4-dimensional Lorentzian general relativity motivated by the canonical quantization. The starting point is Lorentz covariant loop quantum gravity. Its kinematical Hilbert space is found as
C. Rovelli   +6 more
core   +3 more sources

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