A highly birefringent index-guiding photonic crystal fiber (PCF) with flattened dispersion and low confinement loss is proposed by introducing two small air holes with the same diameter in the core area. The fundament...
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A highly birefringent index-guiding photonic crystal fiber (PCF) with flattened dispersion and low confinement loss is proposed by introducing two small air holes with the same diameter in the core area. The fundamental mode field, birefringence, confinement loss, effective mode area and dispersion characteristic of the fibers are studied by the full-vector finite element method (FEM). Simulation results show that a high birefringence with the order of 10 -3 and a low confinement loss of 0.001 dB/km are obtained at 1550 nm. Furthermore, flattened chromatic dispersion from 1450 nm to 1590 nm is obtained.
Radio frequency identification (RFID) tag privacy is an important issue to RFID security. To date, there have been several attempts to achieve the wide-strong privacy by using zero-knowledge protocols. In this paper, ...
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The purpose of this exploratory research was to study the relationship between the mood of computer users and their use of keyboard and mouse to examine the possibility of creating a generic or individualized mood mea...
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The purpose of this exploratory research was to study the relationship between the mood of computer users and their use of keyboard and mouse to examine the possibility of creating a generic or individualized mood measure. To examine this, a field study （n = 26） and a controlled study （n = 16） were conducted. In the field study, interaction data and self-reported mood measurements were collected during normal PC use over several days. In the controlled study, participants worked on a programming task while listening to high or low arousing background music. Besides subjective mood measurement, galvanic skin response （GSR） data was also collected. Results found no generic relationship between the interaction data and the mood data. However, the re- suits of the studies found significant average correlations be- tween mood measurement and personalized regression models based on keyboard and mouse interaction data. Together the results suggest that individualized mood prediction is pos- sible from interaction behaviour with keyboard and mouse.
In practical applications, the owner of an RFID-tagged item canchange. In this paper, we propose a new RFID ownership transfer protocol using elliptic-curve cryptography. The paper first considers security and privacy...
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The project of parallelising a Fortran code designed to simulate one-dimensional multiphase flow simulations has been successfully completed. Parallelisation of such a code is of crucial importance due to its use for ...
The project of parallelising a Fortran code designed to simulate one-dimensional multiphase flow simulations has been successfully completed. Parallelisation of such a code is of crucial importance due to its use for simulating flow in long pipes. The choice was made to use OpenMP rather than MPI parallelisation, and reasons for the choice are given in detail, together with explanations about the tasks involved. Speed-ups were observed to be better for complex mathematical models rather than simple ones.
The control and prevention of transmissible diseases is an important public health concern. This paper gives a strategy to detect the transmission of contagion based on social network. With the popularity of the Weibo...
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Key agreement protocols are one of the fundamental primitives in cryptography. In this paper, we formalize the security model for certificateless one-way and two-party authenticated key agreement protocols and propose...
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Capturing potential customers for a given product based on individual preferences is very important in many personalized applications. Reverse ranking queries are widely employed in this scenario from the perspective ...
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Vehicular ad-hoc networks (VANETs) have recently received considerable attention. To widely deploy VANETs in the civilian area, it is critical to tackle the secure and privacy challenges in VANETs. In this paper, we p...
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The signal calculus for event-based synchronous languages is developed for the specification and programming of embedded systems. This paper first explores a structural operational semantics for conceptually instantan...
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