Overbarrier Resonances as Solutions of Set Inhomogeneous Schr\"{o}dinger Equations

In the paper the Schr\"odinger equation for quasibound resonance state with complex energy is considered. The system of inhomogeneous differential equations is obtained for the real and imaginary parts of wave function. On the base of known solution of corresponding homogeneous equation, the inhomogeneus system is solved with help of iteration procedure. The single-particle neutron $2p$-state in the Woods - Saxon potential is analyzed for $^{13}C$ nucleus.Comment: 19 pages, 3 figure

Subspace Methods for Data Attack on State Estimation: A Data Driven Approach

Data attacks on state estimation modify part of system measurements such that the tempered measurements cause incorrect system state estimates. Attack techniques proposed in the literature often require detailed knowledge of system parameters. Such information is difficult to acquire in practice. The subspace methods presented in this paper, on the other hand, learn the system operating subspace from measurements and launch attacks accordingly. Conditions for the existence of an unobservable subspace attack are obtained under the full and partial measurement models. Using the estimated system subspace, two attack strategies are presented. The first strategy aims to affect the system state directly by hiding the attack vector in the system subspace. The second strategy misleads the bad data detection mechanism so that data not under attack are removed. Performance of these attacks are evaluated using the IEEE 14-bus network and the IEEE 118-bus network.Comment: 12 page

Development of optical sensing system for detection of Fe ions using conductive polymer actuator based microfluidic pump

In this paper, we present a novel microfluidic optical sensing system by combining a low-power conductive polymer -based microfluidic pump and a microfluidic chip integrated with an optical sensor. A self priming microfluidic pump is developed using a polypyrrole. A microfluidic chip- optical detector module that contained an optical cuvette with LED and photo-diode optical sensing module was fabricated. Integration of the micro pump and the microfluidic chips complete the sensing system. The pump performance and its application in chemical analysis have been demonstrated in the detection of Fe ions

Potential Of Modified Gambir As Adsorbent For The Removal Of Selected Heavy Metal Ions From Aqueous Solutions

In this study, gambir extracted and gambir pulp has been chemically modified with formaldehyde (FGA) and hydrochloric acid (AGPA), respectively. Adsorbents were physically and chemically characterized by FTIR, BET, TGA, SEM, EDS and pHpzc. The surface of FGA was found to be granular and honeycombed shape while AGPA was in spherical and compacted shape. The pHpzc values for FGA and AGPA were found to be 3.90 and 3.62, respectively. Hydroxyl (-OH) and carboxyl (-COOH) groups were detected by FTIR. The effects of pH, adsorbent dosage, initial concentration, contact time and temperature on adsorption were studied. The optimum conditions of pH for metal ions adsorption onto both FGA and AGPA were found to be pH 5.0 (Cu2+, Pb2+ ions) dan pH 6.0 (Ni2+, Co2+ ions), respectively. Meanwhile, the optimum conditions of adsorbent dosage for metal ions adsorption onto FGA were found to be 6.00 g/L (Cu2+ ions), 10.00 g/L (Pb2+ ions), 16.00 g/L (Ni2+, Co2+ ions) and for AGPA were found to be 10.00 g/L (Pb2+ ions), 12.00 g/L (Ni2+ ions), 16.00 g/L (Cu2+, Co2+ ions), respectively. The initial adsorption process was rapid and reached equilibrium within 90 min for all metal ions. Four types of kinetic models were applied to analyze kinetic data particularly pseudo-first order, pseudo-second order, Elovich and intraparticle diffusion. Pseudosecond order was found to be the best model that fitted well the kinetic data and predicted that chemisorptions took place in the process. Meanwhile, the intraparticle diffusion stated that there was more than one diffusion process as in this study

Tyrosine Phosphorylation-Mediated Signaling Pathways in Dictyostelium

While studies on metazoan cell proliferation, cell differentiation, and cytokine signaling laid the foundation of the current paradigms of tyrosine kinase signaling, similar studies using lower eukaryotes have provided invaluable insight for the understanding of mammalian pathways, such as Wnt and STAT pathways. Dictyostelium is one of the leading lower eukaryotic model systems where stress-induced cellular responses, Wnt-like pathways, and STAT-mediated pathways are well investigated. TheseDictyostelium pathways will be reviewed together with their mammalian counterparts to facilitate the comparative understanding of these variant and noncanonical pathways

Development of bite guard for wireless monitoring of bruxism using pressure-sensitive polymer

A wireless pressure sensing bite guard has been developed for monitoring the progress of bruxism (teeth grinding during sleep); as well as for protecting the teeth from damages. For sensing the grinding event effectively in restricted space and hostile environment, a pressure sensitive polymer composite which is safe for intra oral applications has been fabricated and encapsulated into a conventional bite guard. Also encapsulated was a microcontroller-based electronic circuit which was built in-house for data collection and transmission. A low power approach was configured to maximize the working life-time of the device to several months. The device can provide real-time tooth grinding profile through wireless communication. This device is anticipated to be a useful tool for understanding and treating bruxism