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Improvement of Concrete Shear Wall Structures by Smart Materials
Smart Material Shape Memory Alloy Shear Wall Superelasticity Seismic Behavio
2013/1/31
Smart materials have found numerous applications in many areas in civil engineering recently. One class of these materials is shape memory alloy (SMA) which exhibits several unique characteristics suc...
Analysis of the Multi-Relationships and Their Structures for Safety Culture
Safety Culture Safety Performance Structure Equation Modeling
2013/1/28
Studies on safety culture and safety performance have been increasing recently and several proposed models have been developed and evaluated to identify their key dimensions. However, many studies foc...
From Electromagnetically Induced Transparency to Superscattering with a Single Structure: A Coupled-Mode Theory for Doubly Resonant Structures
Electromagnetically Induced Transparency Superscattering Single Structure Coupled-Mode Theory Doubly Resonant Structures
2015/8/7
We observe from simulations that a doubly resonant structure can exhibit spectral behavior analogous to electromagnetically induced transparency, as well as superscattering, depending on the excitatio...
S4:A free electromagnetic solver for layered periodic structures
Computational electromagnetics Maxwell solver Fourier modal method
2015/8/7
We describe S4, a free implementation of the Fourier modal method (FMM), which has also been commonly referred to as rigorous coupled wave analysis (RCWA), for simulating electromagnetic propagation t...
Thermodynamic Upper Bound on Broadband Light Coupling with Photonic Structures
Thermodynamic Broadband Light Coupling Photonic Structures
2015/8/7
The coupling between free space radiation and optical media critically influences the performance of optical devices. We show that, for any given photonic structure, the sum of the external coup...
PROCESSING OF UAV BASED RANGE IMAGING DATA TO GENERATE DETAILED ELEVATION MODELS OF COMPLEX NATURAL STRUCTURES
RIM UAV tracking differential GNSS mapping DEM/DTM
2014/4/25
Unmanned Aerial Vehicles (UAVs) are more and more used in civil areas like geomatics. Autonomous navigated platforms have a great flexibility in flying and manoeuvring in complex environments to colle...
Seismic damage analyses of staircases in RC frame structures
Wenchuan earthquake RC frame structure cast-in-site staircase seismic performance yielding and failing mechanism
2014/4/10
Staircases in Reinforced Concrete (RC) frame structures suffered severe damages in recent earthquakes although they are regarded as critically important passages during emergencies. Staircases act as...
CONSIDERING INTERNAL SPACE LAYOUT AS A MAJORE COMPONENT OF VISUAL ANALYSIS FOR URBAN SYSTEMS AND A KEY TO REINTERPRET URBAN STRUCTURES
Architecture Design Sustainable Environment Geometry Configuration Building Visualization
2014/5/9
Reviving neglected existing urban fabrics is one of the main frame-work for our future. A contemporary theory of conservation regarding architectural intervention and buildings subsequent re-use, has ...
A practical design method for reinforced concrete structures with viscous dampers
Viscous damper Design method Reinforced concrete structure Wenchuan Earthquake
2014/4/10
As a result of the 2008 Wenchuan Earthquake, the Chinese government issued a modified seismic code with increased protection categories and seismic intensities. According to the new code, a lot ...
Detecting coherent structures using braids
topological chaos, dynamical systems, Lagrangian coherent structures
2011/9/13
The detection of coherent structures is an important problem in uid dynamics,particularly in geophysical applications. For instance, knowledge of how regions of uid are isolated from each other allows...
Noise Suppression for Fiber Radio Transmission on Spectrum-Sliced WDM-PONs Employing Interferometric Structures
Fiber optics communications Radio frequency photonics
2015/5/26
We propose a novel noise-suppression scheme in spectrum-sliced WDM-PONs.Experimentally, low-noise windows can be created in which the noise is reduced by more than 20dB and the performance of vector s...
High Efficiency Optical Switches with Heater-on-Slab (HoS) Structures
Couplers Switches Multiplexers Waveguides Slab
2015/5/21
We propose optical switches in which the heater is fabricated directly on the slab region of the rib waveguide. Two types of Heater-on-Slab (HoS) switches were investigated. In the first type, the sil...
A Novel Dispersion Controlling Technique Using Doped Ring Structures within Photonic Crystal Fibers
Dispersion Photonic Crystal Fibers Ring Structures
2015/5/14
We proposed the novel photonic crystal fiber structure which uses high/low doping material around each cladding holes. Through the numerical analysis, we confirmed that this fiber structure will intro...
Geometric and material nonlinear analysis of tensegrity structures
Nonlinear analysis Tensegrity structures Geometric nonlinearity Material nonlinearity Large displacements
2012/2/28
A numerical method is presented for the large deflection in elastic analysis of tensegrity structures including both geometric and material onlinearities. The geometric nonlinearity is considered base...
'Smart' solutions for human skin, bridge testing and more are in largest-ever SPIE Smart Structures/NDE program
human skin SPIE Smart Structures/NDE program nondestructive testing
2011/4/22
Smart structures that emulate human muscles and skin and nondestructive testing of bridges and airline cargo will be among advances presented at an international conference in San Diego, California, n...