The mirror (or bipartite complement) mir(B) of a bipartite graph B = (X,Y,E) has the same color classes X and Y as B, and two vertices x ∈ X and y ∈ Y are adjacent in mir(B) if and only if xy / ∈ E. A bipartite graph is chordal bipartite if none of its induced subgraphs is a chordless cycle with at least six vertices. In this paper, we deal with chordal bipartite graphs whose mirror is chordal ...

This study used a waveform inversion of distributed acoustic sensing (DAS) data, acquired in two horizontal monitoring wells, to estimate the moment tensor (MT) induced microearthquakes. An analytical forward model was developed simulate far-field tangential strain generated by an MT source homogeneous and anisotropic medium, averaged over gauge length along fiber arbitrary orientation. To prep...

There is recently a trend to study linear system identification with high order finite impulse response (FIR) models using the regularized least-squares approach. One key of this approach is to solve the hyper-parameter estimation problem that is usually non-convex. Our goal here is to investigate implementation of algorithms for solving the hyper-parameter estimation problem that can deal with...

During the past two decades, the utilization of Active Chilled Beam (ACB) systems as promising air-conditioning systems has becoming increasingly prevalent in Europe, North America and Asia. However, the studies on air distribution of ACB systems are still inadequate. The air distribution has a great impact on thermal comfort. The ununiformity of air distribution will easily lead to turbulent f...

We study an inverse problem for the wave equation, concerned with estimating speed from data gathered by array of sources and receivers that emit probing signals measure resulting waves. The typical approach to solving this is a nonlinear least squares minimization misfit, over search space. There are two main impediments approach, which manifest as multiple local minima objective function: non...

The functional composites of activated carbon black-titanium dioxide (ACB-TiO2) with antibacterial-photocatalytic properties have been properly synthesized in this research using ultrasonic 40 kHz, 2´50 W at 50oC for 10, 20, and 30 minutes agitation time. This aimed to enhance titanium dioxide's antibacterial photocatalytic (TiO2) black (ACB) particles forming ACB-TiO2 composites. the materials...

Abstract Background Anticholinergic burden is associated with an increase in cognitive decline, delirium and confusion. We aimed to examine the Cognitive Burden (ACB) of patients referred local dementia services, prescribing acetylcholinesterase inhibitors a significant anticholinergic burden. also looked at frequency classes some medications known Methods A retrospective chart review was carri...

To void breakdown between busbars, the dissociation unit is applied in arc chamber of an air circuit breaker (ACB) to cool down hot gas exhausted from vent interrupting process. Cooling efficiency and flow resistance have important roles, which can greatly affect safety low voltage switcher performance chamber. The most common structure style a multilayer metal wire mesh, it has complex microst...