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The aim of this study was to develop a task set based on personalized material for nostalgic experience, which could detect cognitive ability via a virtual experience system combined with Kinect somatosensory interactive operation applications without the user wearing any accessory input device. Fifty-nine subjects participated in the experiment. The receiver operating characteristic curve of the...
Asymmetric core is an alternative approach for mode scalability and better heat dissipation, thus being expected for suppressed mode instability. This talk will present stretched core fibres in aspects of its mode area scalability and mode instability.
Sensors are becoming ubiquitous and increasingly integrated with and on the human body; powering such “body network” devices remains an outstanding problem. In this paper, we demonstrate a touch interrogation powered energy harvesting system. This system transforms the kinetic energy of a human finger to electric energy, with each tap producing approximately 1 nJ of energy at a storage capacitor....
In this paper, we present a new Group Of Pictures (GOP) level bit allocation method for rate control of High Efficiency Video Coding (HEVC), which is the state-of-the-art video coding standard from ITU/ISO. Because of the difference of GOP coding structures between HEVC and H.264/AVC, the GOP level bit allocation method of H.264/AVC rate control is no longer adapted to HEVC. However, the existing...
We demonstrated a 400Gb/s Ethernet end-to-end circuit, inclusive of 400GbE client card with CPF8 interface and dual-carrier 16QAM line-side, on a production 100G core network segment between New York City and Washington DC. During the field trial, we demonstrated the feasibility of SDN-enabled creation, deletion, and re-routing of the 400G service.
Magnetic nanostructures have potential applications in ultrahigh-density magnetic storage. In this paper, the dynamics of the dual magnetic vortices in elliptical Permalloy nanodisk are investigated using micromagnetic modeling. Under the stimulation of the short-axis ($y$ -axis) Gaussian field pulse and long-axis ($x$ -axis) constant field, the equilibrium positions of dual-vortex cores can be...
Nanoscale resistance reset of the SiO2/M stack (where M=Cu, Ni, Ti, Al, p-type Si) was investigated via a conductive atomic force microscope (C-AFM). Visible-light illumination triggers a resistance reset for Ti, Al and p-type Si electrodes, however such a behavior is not always observed for the Cu and Ni electrodes. Conversely, electrical reset is possible for Cu and Ni, but not for the others. The...
Nuclear Magnetic Resonance Gyro (NMRG) utilizes the atomic spin to sense system angular rate. It has the advantages of small volume and high precision. The influence of the pump laser frequency fluctuation on the bias drift of NMRG has been studied in this paper. The output of NMRG in open loop is derived, and the process of 129Xe polarization via Spin-Exchange Optical Pumping (SEOP) is analyzed....
A platform inertial platform system (IPS) is a kind of independent navigation system that can give the real-time position, velocity and course information of its carrier. For the IPS based on mechanical gyros, a method of ground vehicle navigation is proposed, in which the IMU of the IPS is stabilized within inertial space. The method can be used for testing the performance of the IPS of high precision...
We consider the problem of designing probing signals for a Multi-Input Multi-Output (MIMO) radar. The goal is to design a signal vector with a desired covariance while ensuring the side-lobes of the ambiguity functions are small. We will also consider cases in which a bandwidth constraint is placed on the signal. Since covariance matrices are structurally constrained, they form a manifold in the signal...
High voltage direct current (HVDC) cables are one of the key components for the HVDC power transmission system. HVDC cables for higher voltage level, larger power capacity and higher reliability are still desired for the power industry as part of a global power strategy. One of the major concerns related to HVDC applications is the presence of space charge within the dielectrics, which distorts the...
In this paper, an improved Bayesian estimator for single-channel speech enhancement is studied. Based on the observation that the speech discrete Fourier transform (DFT) coefficients are better modeled by a Chi distribution and the human auditory system properties, a generalized weighted Bayesian estimator with Chi priori is proposed. Then, with the speech presence uncertainty (SPU) estimation, a...
The online monitoring of ice load of transmission lines, which reflects the dynamic load of line, can alert the early stage ice in advance and guarantee the safety of power supply. However, the fiber sensors, which were used in ice online monitoring of overhead transmission lines, usually had low sensitivity and bad repeatability. And the capacity of sensor network was limited and it was difficult...
Extreme weather events or more in general changing environmental conditions (for instance due to climate change) might have significant impacts on future power systems, threatening their resilient operation. In this context, this paper provides a quantitative analysis of the temperature and water availability effects on power system resilience. Differently from most existing work that only addresses...
The interfacial reaction in Cu/Sn-9Zn/Cu and Cu/Sn-9Zn/Ni interconnects during electromigration (EM) were investigated under a current density of 5.0 × 103 A/cm2 at 150 °C. An obvious reverse polarity effect in Cu/Sn-9Zn/Cu and Cu/Sn-9Zn/Ni interconnects during EM was demonstrated, i.e., the interfacial IMCs at the cathode grew continuously and were remarkably thicker than those at the anode. The...
The design of a tremor estimator is an important part of designing mechanical tremor suppression orthoses. A number of tremor estimators have been developed and applied with the assumption that tremor is a mono-frequency signal. However, recent experimental studies have shown that Parkinsonian tremor consists of multiple frequencies, and that the second and third harmonics make a large contribution...
Acoustic Echo Cancellation (AEC) is employed in hands-free communication systems to enhance communication experience. Double-Talk Detection (DTD) plays a vital role in AEC to distinguish the far-end and near-end signals and its failure will cause the system divergence. An efficient new DTD algorithm based on the joint signal energy and cross-correlation estimation techniques is proposed in this paper...
Due to an extensive use of spatial-temporal prediction techniques, a large amount of the spatial-temporal dependency is incurred in video coding. To optimize coding performance in the block-based hybrid coding architecture, rate-distortion optimization (RDO) techniques are widely employed based on different levels ranging from frame-level to slice-level, to coding tree unit (CTU)-level, coding unit...
Oxygen vacancies are widely thought to be responsible for resistive switching (RS) effects based on polycrystalline oxides films. It is also well known that grain boundaries (GB) serve as reservoirs for accumulating oxygen vacancies. Here, Ar gas was introduced to enlarge the size of GB and increase the quantity of oxygen vacancies when the Ba0.6Sr0.4TiO3 (BST) films were deposited by pulse laser...
A systematic resilience and flexibility analysis of future power systems to address the impacts of climate change and Renewable Energy penetration is becoming increasingly important, as it is expected to have a great effect on the demand and supply portfolios. Depending on the intrinsic characteristics of each power system, different aspects have to be considered in the analysis since this cannot...
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