Daan Liang

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In recent years, there has been a concerted effort for greater job safety in all industries. Personnel protective equipment (PPE) has been developed to help mitigate the risk of injury to humans that might be exposed to hazardous situations. The human head is the most vulnerable to impact as a moderate magnitude can cause serious injury or death. That is(More)
BACKGROUND Taking proper protective action upon receiving tornado warnings is critical to reducing casualties. With more warning information sources becoming available, how the number of such information sources affects decision making should be quantitatively investigated. PURPOSE To examine how the number of warning information sources affected(More)
This paper addresses an ab-initio field investigation around using low-cost portable radars to capture coherent Doppler signatures of wind turbines for structural health monitoring (SHM) applications. A handheld low-cost K-band radar sensor is employed to point at the blades of a turbine, and their Doppler signatures from different angles and distances are(More)
BACKGROUND Tornadoes, with warnings usually issued just minutes before their touchdowns, pose great threats to properties and people's physical and mental health. Few studies have empirically investigated the association of family emergency preparedness planning and observed protective behaviors in the context of tornadoes. PURPOSE The purpose of this(More)
INTRODUCTION This study examines how changes in emotional closeness and exchanges of support among family members after Hurricane Sandy affected residents' psychological outcomes both positively and negatively. METHODS The working sample included 130 family ties reported by 85 respondents recruited from community and shelter residents on Staten Island(More)
Satellite hyperspectral imagery has been widely used in geological and agricultural studies. However, its use for an urban environment is limited due to low spatial resolution. Few methods in the literature attempt to use both spectral and spatial information in hyperspectral imagery. In this paper, a new method of performing spectral correlation and(More)
Understanding of the recovery phase of a disaster cycle is still in its infancy. Recent major disasters such as Hurricane Sandy have revealed the inability of existing policies and planning to promptly restore infrastructure, residential properties, and commercial activities in affected communities. In this setting, a thorough grasp of housing recovery(More)