This study presents a new strategy for shake table control that uses direct acceleration feedback without need for displacement feedback. To ensure stability against table drift, force feedback is incorporated. The proposed control strategy was experimentally validated using the shake table at the Johns Hopkins University. Experimental results showed that the proposed control strategy produced ...

White-mottled (w(m4)) position-effect variegation (PEV) arises by translocation of the white gene near the pericentric AT-rich 1.688 g/cm3 satellite III (SATIII) repeats of the X chromosome of Drosophila. The natural and artificial A*T-hook proteins D1 and MATH20 modify w(m4) PEV in opposite ways. D1 binds SATIII repeats and enhances PEV, presumably via a recruitment of protein partners, wherea...

Single-molecule tracking (SMT) of fluorescently tagged cytoplasmic proteins can provide valuable information on the underlying biological processes in living cells via subsequent analysis of the displacement distributions; however, the confinement effect originated from the small size of a bacterial cell skews the protein's displacement distribution and complicates the quantification of the int...

A method for integrating on-chip displacement micropumps in thermoplastic microfluidic devices is presented. Stainless steel screws serve as direct displacement pumping elements integrated directly into threaded ports formed in a thermoplastic substrate, with a microcontroller used to precisely modulate flow rates over a wide range from 0.5 – 35 μL/min, in a compact and portable format. Combine...

The objectives of this study were to figure out the prevalence of sideways disc displacement of the temporomandibular joint (TMJ) in symptom-free volunteers and to compare signal. The study was based on bilateral Magnetic Resonance Images (MRI) of 112 joints in 56 symptom-free volunteers. Sideways displacements were identified as medial disc displacement (MDD) and lateral disc displacement (LDD...