NMR GHZ

We describe the creation of a Greenberger-Horne-Zeilinger (GHZ) state of the form |000>+|111> (three maximally entangled quantum bits) using Nuclear Magnetic Resonance (NMR). We have successfully carried out the experiment using the proton and carbon spins of trichloroethylene, and confirmed the result using state tomography. We have thus extended the space of entangled quantum states explored systematically to three quantum bits, an essential step for quantum computation.Comment: 4 pages in RevTex, 3 figures, the paper is also avalaible at http://qso.lanl.gov/qc

RECAPITALIZATION AND ITS IMPACT ON BANK’S STABILITY, COMPETITIVENESS AND PROFITABILITY: EVIDENCE FROM INDIAN PSBs

There is a current argument relating to the capital infusion to the banks for strengthening capital on one side, without taking prudential measures to reduce the strains already present in the credit quality of banks on the other. The regulators thought that recapitalization of banks will be used to effectively reduce the cost of funds in the regular business provided when there is a higher lending demand. The capital infusion may turn out ineffective if there is less loan demand. On this background, this paper examines the effect of recapitalization of Indian public sector banks, and its impact on banks stability, competitiveness and profitability. Out of 21 banks, 18 banks reacted positively in case of one indicator, but failed in regard to overall indicators. Finally, the study reveals an interesting outcome that, there is no relationship between the size of the infusion and the performance of the bank. Hence, the study concludes that the capital infusion will help the banks significantly to improve the stability, competitiveness and profitability only when the banks’ fundamentals are strong, combined with the deployment of fresh funds and their managerial capability

Cooperative Hyper-Scheduling based improving Energy Aware Life Time Maximization in Wireless Body Sensor Network Using Topology Driven Clustering Approach

The Wireless Body Sensor Network (WBSN) is an incredible developing data transmission network for modern day communication especially in Biosensor device networks. Due to energy consumption in biomedical data transfer have impacts of sink nodes get loss information on each duty cycle because of Traffic interruptions. The reason behind the popularity of WBSN characteristics contains number of sensor nodes to transmit data in various dense regions. Due to increasing more traffic, delay, bandwidth consumption, the energy losses be occurred to reduce the lifetime of the WBSN transmission. So, the sensor nodes are having limited energy or power, by listening to the incoming signals, it loses certain amount of energy to make data losses because of improper route selection. To improve the energy aware lifetime maximization through Traffic Aware Routing (TAR) based on scheduling. Because the performance of scheduling is greatly depending on the energy of nodes and lifetime of the network. To resolve this problem, we propose a Cooperative Hyper-scheduling (CHS) based improving energy aware life time maximization (EALTM) in Wireless Body sensor network using Topology Driven Clustering Approach (TDCA).Initially the method maintains the traces of transmission performed by different Bio-sensor nodes in different duty cycle. The method considers the energy of different nodes and history of earlier transmission from the Route Table (RT) whether the transmission behind the Sink node. Based on the RT information route discovery was performed using Traffic Aware Neighbors Discovery (TAND) to estimate Data Transmission Support Measure (DTSM) on each Bio-sensor node which its covers sink node. These nodes are grouped into topology driven clustering approach for route optimization. Then the priority is allocated based on The Max-Min DTSM, the Cooperative Hyper-scheduling was implemented to schedule the transmission with support of DTSM to reduce the energy losses in WBSN. This improves the energy level to maximization the life time of data transmission in WBSN than other methods to produce best performance in throughput energy level

Experimental investigation of non-normality of thermoacoustic interaction in an electrically heated Rijke tube

An experimental investigation of the non-normal nature of thermoacoustic interactions in an electrically heated horizontal Rijke tube is performed. Since non-normality and the associated transient growth are linear phenomena, the experiments have to be confined to the linear regime. The bifurcation diagram for the subcritical Hopf bifurcation into a limit cycle behavior has been determined, after which the amplitude levels, for which the system acts linearly, have been identified for different power inputs to the heater. There are two main objectives for this experimental investigation. The first one deals with the extraction of the linear eigenmodes associated with the acoustic pressure from experimental data. This is accomplished by the Dynamic Mode Decomposition (DMD) technique applied in the linear regime. The non-orthogonality between the eigenmodes is determined for various values of heater power. The second objective is to identify evidence of transient perturbation growth in the system. The total acoustic energy in the duct has been monitored as the thermoacoustic system evolves from its initial condition. Transient growth, on the order of previous theoretical studies, has been found, and its parameteric dependence on amplitude ratio and phase angle of the initial eigenmode components has been determined. This study represents the first experimental confirmation of non-normality in thermoacoustic systems

Placental thickness as a sonographic biomarker for gestational age among singleton pregnancies

Background: The aim of the study was to exploring the application of placental thickness as a sonographic marker for determining gestational age among singleton pregnant mothers.Methods: This longitudinal, observational study was conducted in obstetrics and gynecology department and department of Radiology, Sri Venkateshwaraa Medical College and Hospital, Ariyur, Puducherry, in antenatal mothers of 11-40 weeks of gestation from 2018 to 2019. The study included 278 normal singleton pregnant women. The details regarding the socio-demographic variables, relevant clinical history and examination, laboratory investigations and ultrasound report containing gestational age, placental thickness measured at the level of cord insertion were documented in a proforma. The sonographic measurements were made using a grey scale real time ultrasound machine Siemens ACUSON x400 with a convex 2-5 mhz probe.Results: The study included 278 pregnant women with a mean age of 25.8±44 years. Majority of them were home makers (n=155, 55.7%) and educated (n=257, 92.4%) and primigravida(n=117, 57.9%).The position of the placenta in majority of the participants was posterior placed (71.6%). The mean gestational age of the studied antenatal women was 28.3±7.2 weeks as per ultrasonogram. Majority of the participants were younger aged between 20 to 30 years of age and very few teenage pregnancies. There was a significant correlation between the gestational age and placental thickness (p<0.001). There was a significant (p<0.001) correlation between placental thickness and femur length (r=0.972).Conclusions: The placental thickness showed significant positive correlation with the gestational age as measured by ultrasonogram. Hence it can be used as a parameter in determining the gestational age

Bifurcation analysis of thermoacoustic instability in a horizontal Rijke tube

A bifurcation analysis of the dynamical behavior of a horizontal Rijke tube model is performed in this paper. The method of numerical continuation is used to obtain the bifurcation plots, including the amplitude of the unstable limit cycles. Bifurcation plots for the variation of nondimensional heater power, damping coefficient and the heater location are obtained for different values of time lag in the system. Subcritical bifurcation was observed for variation of parameters and regions of global stability, global instability and bistability are characterized. Linear and nonlinear stability boundaries are obtained for the simultaneous variation of two parameters of the system. The validity of the small time lag assumption in the calculation of linear stability boundary has been shown to fail at typical values of time lag of system. Accurate calculation of the linear stability boundary in systems with explicit time delay models, must therefore, not assume a small time lag assumption. Interesting dynamical behavior such as co-existing multiple attractors, quasiperiodic behavior and period doubling route to chaos have been observed in the analysis of the model. Comparison of the linear stability boundaries and bifurcation behavior from this reduced order model are shown to display trends similar to experimental data

Improvement of Weld Bead Characteristics in Gas Metal Arc Welding of SA515 Carbon Steel by Applying Alternating Shielding Gas Flow Technique

High service temperature of pressure vessel components necessitates the use of welded SA515 grade carbon steel components. The gas metal arc welding (GMAW) process using CO2 as shielding gas is known for its undesirable spatter behaviour and inferior weld quality. The alternating shielding gas flow (ASGF) technique is proposed in this study using the shielding gases, viz. CO2 and argon to overcome this difficulty. The welding current, stand-off distance, and shielding gas flow were all varied to improve the bead-on-plate profile geometry. The bead profile parameters such as depth of penetration, bead width, and bead height are considered as weld bead parameters. The following methods are used: correlation analysis, analysis of variance (ANOVA), modelling, and grey relational analysis (GRA). According to the findings, the welding current and ASGF are the most influential parameters impacting the weld bead characteristics. By increasing the welding current, the bead profile parameters increase linearly. The geometry of the bead profile was improved by using the GRA