Research on United Account Payment Platform Technology for Smart Transportation

In order to integrate the account information of many enterprises in the transportation industry group, this paper proposes a solution of united account payment platform, provides multi-channel and united payment services. The program studies united account payment management technology. It realizes the integration of account information of many corporate groups, which provides united fund account information management. Through the establishment of a united account management center, the system interactively processes the account contents of all group businesses, and completes centralized management, behavior analysis, and united authentication of enterprises and individuals. It also provides single sign-on and account association for each application module and function scenario of the enterprise. Through the establishment of a united payment management center, this paper realizes united management of multiple payment methods and united management of payment channels provided by access payment institutions. By managing the payment center routing rules, the system controls the categorization of downstream payment channels. Finally, the feasibility and effectiveness of the technology are verified through the implementation of the united account payment management system

Women in a box

This thesis is the written component of the exhibition that was be held from March 26 through April 9, 2015 in the gallery of 203 Design On Main, Iowa State University, Ames, Iowa. Women in a Box, the name of the thesis, explores the sexual imbalance and women\u27s to-be-looked-at-ness in patriarchal society, and concerns how mass media construct beauty standards and sexual attractiveness and the impacts on women\u27s identities. The artwork contains installations, pattern design, paintings, as well as video arts. This writing component documents the inspiration and intention of the artist in creating the work. It also documents the process, and details the academic and the conceptual development of the project. A variety of philosophy and theories ranging from psychoanalytical to sociological have been cited and explained regarding their relevance to the project

Design of an RF CMOS Power Amplifier for Wireless Sensor Networks

The Power Amplifier (PA) is the last Radio Frequency (RF) building block in a transmitter, directly driving an antenna. The low power RF input signal of the PA is amplified to a significant power RF output signal by converting DC power into RF power. Since the PA consumes a majority of the power, efficiency plays one of the most important roles in a PA design. Designing an efficient, fully integrated RF PA that can operate at low supply voltage (1.2V), low power, and low RF frequency (433MHz) is a major challenge. The class E Power Amplifier, which is one type of switch mode PA, is preferred in such a scenario because of its higher theoretical efficiency compared to linear power amplifiers. A controllable class E RF power amplifier design implemented in 0.13 µm CMOS process is presented. The circuit was designed, simulated, laid out, fabricated, and tested. The PA will be integrated as a part of a complete wireless transceiver system using the same process

Non-classical properties and algebraic characteristics of negative binomial states in quantized radiation fields

We study the nonclassical properties and algebraic characteristics of the negative binomial states introduced by Barnett recently. The ladder operator formalism and displacement operator formalism of the negative binomial states are found and the algebra involved turns out to be the SU(1,1) Lie algebra via the generalized Holstein-Primarkoff realization. These states are essentially Peremolov's SU(1,1) coherent states. We reveal their connection with the geometric states and find that they are excited geometric states. As intermediate states, they interpolate between the number states and geometric states. We also point out that they can be recognized as the nonlinear coherent states. Their nonclassical properties, such as sub-Poissonian distribution and squeezing effect are discussed. The quasiprobability distributions in phase space, namely the Q and Wigner functions, are studied in detail. We also propose two methods of generation of the negative binomial states.Comment: 17 pages, 5 figures, Accepted in EPJ

Entangled SU(2) and SU(1,1) coherent states

Entangled SU(2) and SU(1,1) coherent states are developed as superpositions of multiparticle SU(2) and SU(1,1) coherent states. In certain cases, these are coherent states with respect to generalized su(2) and su(1,1) generators, and multiparticle parity states arise as a special case. As a special example of entangled SU(2) coherent states, entangled binomial states are introduced and these entangled binomial states enable the contraction from entangled SU(2) coherent states to entangled harmonic oscillator coherent states. Entangled SU(2) coherent states are discussed in the context of pairs of qubits. We also introduce the entangled negative binomial states and entangled squeezed states as examples of entangled SU(1,1) coherent states. A method for generating the entangled SU(2) and SU(1,1) coherent states is discussed and degrees of entanglement calculated. Two types of SU(1,1) coherent states are discussed in each case: Perelomov coherent states and Barut-Girardello coherent states.Comment: 31 pages, no figure

Split degenerate states and stable p+ip phases from holography

In this paper, we investigate the p+$i$p superfluid phases in the complex vector field holographic p-wave model. We find that in the probe limit, the p+$i$p phase and the p-wave phase are equally stable, hence the p and $i$p orders can be mixed with an arbitrary ratio to form more general p+$\lambda i$p phases, which are also equally stable with the p-wave and p+$i$p phases. As a result, the system possesses a degenerate thermal state in the superfluid region. We further study the case with considering the back reaction on the metric, and find that the degenerate ground states will be separated into p-wave and p+$i$p phases, and the p-wave phase is more stable. Finally, due to the different critical temperature of the zeroth order phase transitions from p-wave and p+$i$p phases to the normal phase, there is a temperature region where the p+$i$p phase exists but the p-wave phase doesn't. In this region we find the stable p+$i$p phase for the first time.Comment: 16 pages, 5 figures; typos correcte

Phonon-assisted tunneling in asymmetric resonant tunneling structures

Based on the dielectric continuum model, we calculated the phonon assisted tunneling (PAT) current of general double barrier resonant tunneling structures (DBRTSs) including both symmetric and antisymmetric ones. The results indicate that the four higher frequency interface phonon modes (especially the one which peaks at either interface of the emitter barrier) dominate the PAT processes, which increase the valley current and decrease the PVR of the DBRTSs. We show that an asymmetric structure can lead to improved performance.Comment: 1 paper and 5 figure