Results 21 to 30 of about 734,048 (269)

Dynamic Forces of Swaying Human and Responses of Temporary Demountable Grandstand Based on Experiment and Simulation

open access: yesShock and Vibration, 2018
Modern temporary demountable structures must be designed to withstand the dynamic forces which generated by crowd occupants. The human forces and that cause the dynamic responses of structure have become an important research topic.
Lin He, Jian Yuan, Feng Fan, Cong Liu
doaj   +1 more source

Numerical Investigations of Snowdrift Characteristics on Roofs with Consideration of Snow Crystal Morphological Features

open access: yesBuildings
Under extreme snowfall conditions, wind-induced snow drifting can lead to the redistribution of snow accumulation on roofs, resulting in localized overloads that pose a serious threat to building structural safety.
Guolong Zhang   +5 more
doaj   +1 more source

Research on Snow Load Characteristics on a Complex Long-Span Roof Based on Snow–Wind Tunnel Tests

open access: yesApplied Sciences, 2019
A considerable number of studies have been carried out for predicting snowdrifts on roofs over the years. However, few studies have focused on snowdrifts on complex long-span roofs, as the complex shape and fine structure pose significant challenges.
Guolong Zhang   +3 more
doaj   +1 more source

Retrofit Strategies against Progressive Collapse of Steel Gravity Frames

open access: yesApplied Sciences, 2020
Two retrofit strategies, aiming at increasing the collapse resistance of simple connections by adding seat angles and steel plates with long-slotted holes, are proposed in order to address the vulnerability of steel gravity frames under column loss ...
Lei Zhang, Honghao Li, Wei Wang
doaj   +1 more source

Modeling of the Snowdrift in Cold Regions: Introduction and Evaluation of a New Approach

open access: yesApplied Sciences, 2019
Unbalanced, or non-uniform, snow loads caused by snow drifting or sliding in cold regions with heavy snowfalls, can be a serious problem for the building industry. However, the methods for predicting snow distribution still need to be improved.
Mengmeng Liu   +3 more
doaj   +1 more source

Identifying Optimal Intensity Measures for Predicting Damage Potential of Mainshock–Aftershock Sequences

open access: yesApplied Sciences, 2020
Large earthquakes are followed by a sequence of aftershocks. Therefore, a reasonable prediction of damage potential caused by mainshock (MS)–aftershock (AS) sequences is important in seismic risk assessment.
Zhou Zhou, Xiaohui Yu, Dagang Lu
doaj   +1 more source

Behavioral dynamics of the affordance “graspable” [PDF]

open access: yesAttention, Perception, & Psychophysics, 2011
On a daily basis, one perceives whether an object affords grasping with one hand or with both hands. In experiments in which differently sized objects of a fixed type have been presented, the transition from using one manual mode to the other has depended on both the ratio of object size to hand span and the presentation sequence-that is, size ...
Stacy M, Lopresti-Goodman   +2 more
openaire   +2 more sources

Dynamic behavior of a scroll compressor. (Dynamic analysis)

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1987
This study presents an analytical method to reveal the dynamic behavior of a scroll type compressor of small capacity. The calculated results are summarized on the basis of the gas-torque fluctuation, the crankshaft rotary behavior, the constraint forces at each pair of machine elements, the unbalanced forces of inertia, the compressor vibrations, the ...
ISHII, Noriaki   +4 more
openaire   +3 more sources

Recent advances in structural health diagnosis: a machine learning perspective

open access: yesAdvances in Bridge Engineering
Structural health monitoring (SHM) is the most direct and advanced method for understanding the evolution laws of structures and ensuring structural safety. The essence of SHM lies in diagnosing structural health by analyzing monitoring data.
Yuequan Bao   +5 more
doaj   +1 more source

Personalized Zebrafish Models for Fusion‐Positive Pediatric Sarcomas

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Clinical sequencing efforts have revolutionized our approaches to categorizing pediatric cancers in real time. This has dramatically improved our ability to profile pediatric tumors, identify actionable vulnerabilities, and influence clinical care.
Lisa H. Hall   +2 more
wiley   +1 more source

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