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This paper proposes an effective Temporally Aligned Pooling Representation (TAPR) for video-based person re-identification. To extract the motion information from a sequence, we propose to track the superpixels of the lowest portions of human. To perform temporal alignment of videos, we propose to select the “best” walking cycle from the noisy motion information according to the intrinsic periodicity...
A novel near-infrared light emitting diode (LED) array based on ordered Si micropillar/InGaZnO-nanofilm heterojunctions was proposed and demonstrated. The pixel resolution of the LED array is 4,885 dpi, corresponding to a pixel pitch of 5.2μm. The fabricated LED array shows good rectification characteristics with small serial resistance. Carrier transport obeys the trap-charge-limited current model...
With the development of internet, the network connection between Industrial Control System (ICS) and public internet has been becoming more and more closely. What's more, the traditional IT system attacks have been spread to ICS and become more frequently. However, the traditional security analysis of IT system is not enough to be applied to ICS. In this paper, we present a tool called Attack Path...
If DC system quits operation due to commutation failure in AC-DC hybrid transmission system, the power flow will largely transfer to AC lines, which may cause AC lines overload. Thus, it's essential to analyze the power transferring after DC system quits operation. And the results will provide the basis for the following emergency control measures to ensure system security. This paper studies the...
High-speed precision machining is one of the important development directions of modern machining technology, high-speed spindle system is widely used in high-speed machining, and motorized spindle is the main choice of the high-speed machine tool spindle. The electromagnetic force caused by rotor unbalance is one of main vibration sources of motorized spindle. Firstly, the research on the frequency...
In distributed storage networks (DSN), server failures occur frequently. Although network coding can provide high reliability of storage in DSN, to maintain reliability, a new server, named the new comer, should be firstly implemented to replace the failed server. Then, new comer should download enough data from multiple storage servers, called provider selected from surviving servers to regenerate...
Linear network coding (LNC) has great advantages in optimizing throughput, balancing network load, increasing robustness, etc. Since the coded data packets transmitted in the network are linear combinations of original data packets, the attacker cannot decode to obtain the original data when it cannot acquire enough coded data packets. Therefore, LNC can also provide efficient information security...
In recent years, many cross-VM covert channels have been discovered in cloud computing, causing serious security concerns. For such covert channels, some mitigation schemes have been proposed, but usually one mitigation scheme aims at a specific covert channel, which may be inefficient in defending against potential new attacks. In this paper, we propose a generic solution to mitigate the risk of...
This paper presents a brief review of recent dc arc fault modeling and detection methods. The goal is to examine state-of-the-art technologies and to identify future research and development needs of dc arc fault protection in modern dc networks. For dc arc modeling, the focus is given to external characteristic equations which model the arc with electrical parameters. Moreover, models of the random...
Inland passenger shipping is one of the most convenient means of waterborne travel. However, recent serious accidents with passenger ships in China, have exposed a certain weakness in the country's inland passenger ship safety system. It is thus vital to overview the current conditions of China's inland passenger ship safety system, with regard to the different ship types, employment, management systems,...
An unforeseen event is a threat that can interrupt the operational process and has negative impacts on a supply chain system. To reduce the risks and improve the service level, hazard identification is one of the significant procedures in supply chain risk management (SCRM) to recognize the causes of undesired events across the supply chain network. However, the most SCRM studies in the chemical industry...
In this paper, we present the performance analysis of 100 Gb/s polarization division multiplexed (PDM) differential quadrature phase shift keying (DQPSK) transmission system with spectral amplitude code (SAC) labels in computer simulation. In this system, the payload consists of two 25 Gbaud channels which are orthogonally polarized. Direct detection is selected to demodulate PDM payload in the receiver...
Hard x-ray research taking advantage of both the coherence and timing properties of next generation low-emittance storage rings will thrive in exploring the spatial and temporal correlations at the nanometer and nanosecond scales. Current gating technology with fast detectors and mechanical choppers will not be able to handle the high repetition-rates of these sources and requires the development...
This paper addresses the exponential stability and l2-gain analysis for a class of two-dimensional (2D) discrete switched systems with time-varying delays. The concept of mode-dependent average dwell time (MDADT) is extended to 2D switched systems with state delays. Then, based on the MDADT approach and Lyapunov-Krasovskii (LK) function approach, two sufficient conditions are derived to design switching...
Modelling the interdependencies among the nine common performance conditions (CPCs) in Cognitive Reliability Error Analysis Method (CREAM) stimulates the use of Bayesian Networks (BNs) in Human Reliability Analysis (HRA). However, subjective probability elicitation for a BN is often a daunting and complex task. To create conditional probability values for each given variable in a BN requires a high...
Recent developments in GPU execution models and architectures have introduced dynamic parallelism to facilitate the execution of irregular applications where control flow and memory behavior can be unstructured, time-varying, and hierarchical. The changes brought about by this extension to the traditional bulk synchronous parallel (BSP) model also creates new challenges in exploiting the current GPU...
Interior permanent magnet (IPM) brushless machines with non-sinusoidal back-EMF offer advantages of higher torque density and cost effectiveness, compared to the sinusoidal PM brushless machines. However, these machines suffer from higher torque ripple when being fed by most applied sinusoidal or square-wave currents. This problem can be solved by optimizing the current waveforms. Based on instantaneous...
This paper presents an overview of the latest Gallium Nitride High Electron Mobility Transistor (GaN HEMT) technology. The latest development and challenges of 30 V to 650 V GaN HEMTs are summarized. The evaluation methodology of the GaN HEMT is presented, including static characterization and dynamic characterization. The paper also demonstrates the application of GaN HEMTs developed by Center for...
There is a growing interest in pattern matching over complex event streams. While many bodies of techniques were proposed to search complex patterns and enhance the expressive power of query language, no previous work focused on supporting a well-defined ranking mechanism over answers using semantic ordering. To satisfy this need, we proposed CEPR, a CEP system capable of ranking matchings and emitting...
Traditional 2D texture synthesis methods mainly focus on seamlessly generating a big size texture, with coherent texture direction and homogeneous texture scale, from an input sample. This paper presents a method of synthesizing texture with variational direction and scale on arbitrary planar region. The user first decomposes the interest region into a set of triangles, on which a vector field is...
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