This study investigated the response of reinforced concrete (RC) slabs in building structures to internal explosions. The performances of two slabs designed in accordance with the protective structural design and conventional gravity design approaches were evaluated in terms of midspan displacements, support rotations, and damage patterns. Data from available slab blast experiments in the open ...

Navigation networks are a common form of indoor map that provide the basis for wide range location-based services, intelligent tasks robots, and three-dimensional (3D) geographic information systems. The majority current navigation manually modeled, resulting in laborious fallible process. Building Information Modeling (BIM) captures design information, allowing automated generation maps. Most ...

PURPOSE To compare two different approaches to measuring areas of geographic atrophy (GA) using spectral-domain optical coherence tomography (SD-OCT). METHODS Fifty eyes with GA were imaged with an SD-OCT instrument. OCT fundus images and sub- retinal pigment epithelium (RPE) slab images were generated. Three graders manually drew the GA boundaries on both en face images. An automated algorit...

Information regarding occupants inside buildings has the potential to improve security, energy management, and caregiving. Typical sensing approaches for occupant localization rely on mobile devices cameras. These systems compromise privacy. Occupant using floor-vibration measurements, induced by footsteps, is a non-intrusive method that requires few sensors (one per ~35 m2). Current occupant-l...

In this work, we have applied the self-compressed stabilized jellium model to predict the equilibrium properties of isolated thin Al, Na and Cs slabs. To make a direct correspondence to atomic slabs, we have considered only those L values that correspond to n-layered atomic slabs with 2≤n≤20, for surface indices (100), (110), and (111). The calculations are based on the density functional theor...

This study presents the results of an experimental program to investigate the effectiveness of an innovative combined FRP technique using combination of externally bonded (EB) FRP fabrics and near surface mounted (NSM) FRP rods for flexural strengthening of existing reinforced concrete (RC) two-wayslabs with low clear cover thickness. Three full-scale RC slabs (1500×1500×120 mm) were tested und...

Nowadays, concrete with strength higher than 50 MPa is utilized due to the ever increasing need for higher strength and prolonged healing properties. Despite the widespread use of high-strength concrete, only a few research projects have been conducted on the punching shear strength of high-strength concrete slabs. Reinforced concrete flat slabs are widely employed in structural systems. The lo...

Abstract In order to study the influence of rib size on flexural performance new reinforced truss concrete composite floor slab, two precast slabs and one ordinary slab were designed manufactured for tests. The failure mode under uniform load was analyzed, capacity studied. results show that stiffening steel can significantly improve stiffness effectively solve problem excessive deflection duri...

Earth's deepest earthquakes occur as a population in subducting or previously subducted lithosphere at depths ranging from about 325 to 690 km. This depth interval closely brackets the mantle transition zone, characterized by rapid seismic velocity increases resulting from the transformation of upper mantle minerals to higher-pressure phases. Deep earthquakes thus provide the primary direct evi...

In sensed buildings, information related to occupant movement helps optimize functions such as security, energy management, and caregiving. Due privacy needs, non-intrusive sensing approaches for tracking occupants inside vibration sensors, are often preferred over intrusive strategies that involve use of cameras wearable devices. Current sensor-based occupant-localization data-driven technique...