Miracle-dz/UniFAR-FTUs huggingface dataset:
Numerical study of a wide incident angle- and polarisation-insensitive microwave metamaterial absorber based on a symmetric flower structure

In this study, we propose a wide incident angle- and polarisation-insensitive metamaterial absorber covered with structures comprising a metallic flower shape layer, a dielectric layer and a metallic ground plane. The influences of the structural parameters on the absorptivity are investigated numerically. The proposed absorber exhibits polarisation insensitivity as the number of symmetric petals of a flower shape reaches as high as 4, 6 and 8. Particularly, the absorber based on 8 petals shows an absorptivity of above 90% for wide incident angles up to 70° under transverse electric and transverse magnetic polarisations. The physical mechanism of these observations is clarified by investigating the electric, power loss density and induced current distributions, which is also supported by the retrieved constitutive electromagnetic parameters. That is, the absorption phenomenon is considerably affected by magnetic resonance. By modifying the petals into hollow shapes, the absorber becomes effective in confining the magnetic resonance and can thus minimise the resonant frequency variation to 0.22% without affecting the absorption performance. In comparison with other reported metamaterial absorbers, our design shows considerable practical feasibility in terms of resonant frequency stability, wide incident angle and polarisation insensitivity, thereby making it suitable for various applications in microwave frequency region.In this study, we propose a wide incident angle- and polarisation-insensitive metamaterial absorber covered with structures comprising a metallic flower shape layer, a dielectric layer and a metallic ground plane. The influences of the structural parameters on the absorptivity are investigated numerically. The proposed absorber exhibits polarisation insensitivity as the number of symmetric petals of a flower shape reaches as high as 4, 6 and 8. Particularly, the absorber based on 8 petals shows an absorptivity of above 90% for wide incident angles up to 70° under transverse electric and transverse magnetic polarisations. The physical mechanism of these observations is clarified by investigating the electric, power loss density and induced current distributions, which is also supported by the retrieved constitutive electromagnetic parameters. That is, the absorption phenomenon is considerably affected by magnetic resonance. By modifying the petals into hollow shapes, the absorber becomes effective in confi.
Remote password authentication with smart cards

A remote password authentication scheme based on the Chinese remainder theorem is proposed. The scheme can verify the remote password without verification tables. In the initial phase, the password generation centre generates and assigns a password corresponding to each user. The ideas of smart cards and the identity-based signature scheme introduced by Shamir are employed in this phase. Each user possesses a smart card for later login and authentication. In the login phase, the user submits the identity and password associated with the smart card. In the authentication phase, the system verifies the remotely submitted password to check if the login request is accepted or rejected. A signature scheme and communication timestamps are provided in the authentication phase against the potential attacks of replaying a previously intercepted login request.
Control architecture based on a radial basis function network. Application to a fluid level system

Nonlinear radial basis functions (RBF) at single layer hidden units of a neural net have proven to be effective in generating complex nonlinear mapping and at the same time facilitate fast learning. In the present paper off-line Gaussian control and identification of general nonlinear plants are realized. An iterative method to determine the desired controller output is described, and based upon this, a neural controller is adjusted by using the orthogonal least squares method. Neural identification of the plant is necessary to derive the parameter adjustments of the neural controller. The performance of the Gaussian approach has been demonstrated by off-line reference model neural control. Applications both to a general nonlinear plant and to a highly nonlinear fluid level system are detailed. It is shown that training times with orthogonal least squares method are dramatically reduced during control compared to standard backpropagation-of-the-error-through-the-plant technique. Finally, neural control is compared to PI control, showing the neural approach better generalization properties.
MANGA, ANIME AND VIDEO GAMES: GLOBALIZING JAPANESE CULTURAL PRODUCTION

This special issue of Perspectives is devoted to translation questions arising from the globalization of the Japanese popular cultural production of manga1, anime2 and video games. In his article Japan’s Gross National Cool, McGray (2002) drew attention to the collective power of Japanese popular culture permeating through the rest of the world. His observations highlight the globalization process undergone by these areas of Japanese cultural production and as such serve to raise the question of the role played by translation – a topic little explored in Translation Studies (TS). Widespread popularity of these genres beyond Japanese shores is evident in that the Japanese terms manga and anime together with associated but rather obscure culture-specific concepts such as otaku3 have come into the vocabulary of an increasing international audience. Examples of the influence of manga and anime range from Hollywood films such as The Matrix and Kill Bill to a UK publisher’s recent launch of a Manga Shakespeare series4 turning Romeo and Juliet into a contemporary story set in Japan with Japanese characters depicted in a distinctive manga style. The latter is an example of the emergence of so-called Amerimanga and Euromanga, i.e. the adoption of manga form by comic artists in the US and Europe, adding to the deep-seated impact of manga and creating a domain of its own. Similarly, the popularity of Japanese video games has long ago crossed the national border to produce best selling games in the global market (Roturier 2003). Japanese role playing games (RPGs) are known for introducing a completely new storydriven, rather than action-driven, dimension and winning international fans for their unique characteristics. According to the Japanese Ministry of Economy, Trade and Industry (METI) the Japanese game export market is over 80 times that of the import of overseas games (cited in Nakamura 2006a: 16) with an implication that the localization direction is predominantly from Japanese rather than into Japanese. The extent of the international influence of these products can indeed be inferred from some statistics. In terms of international dissemination anime occupy 60% of the TV animation broadcast worldwide with the ratio in Europe exceeding 80% (Nakamura 2006a: 30). The US forms the single biggest anime market and accounted for US$ 48.4 million (€ 35.6 million) in 2004. This apparently equates to several times the value of steel exported from Japan to the US. Anime sales as a whole are reported to be as much as US$ 4 billion a year in the US, with leading Japanese anime studios earning up to 35% of their revenues on foreign markets (Brown 2006: 6). The worldwide export of Japanese video games, including hardware and software, was approximately ¥ 560 billion (EUR 3.5 billion) in 2004. Japan is considered to be the second largest video game market, following the US which is estimated at € 5.8 billion in 2004 (ESA 242
Effects of Different Levels of Guar Meal and β-Mannanase on Performance, Yolk Cholesterol Concentration and Blood Lipid Parameters of Laying Hens in Second-Cycle of Production

A 3 × 2 factorial arrangements with completely randomized design, with a total of 72 Leghorn Hy-line (W-36) laying hens in the second cycle (98 wk old) of production were randomly assigned to 24 wire cages (45.7×30×30 cm3) and fed with diets containing three levels of guar meal (GM; 0, 4 and 8%) and two levels of β-mannanase (Hemicell®) enzyme (0.00 and 0.05%) for 12 wk period. There were four replicates per treatment with three hens in each replicate. Egg yolk cholesterol and serum lipids (triglyceride, cholesterol, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C)) concentrations were measured at 110 wk of age. No significant differences were observed when feeding GM on egg production (EP), feed intake (FI) and feed conversion ratio (FCR). Supplementation of enzyme significantly reduced FI and improved FCR (P<0.05). Significant interaction was observed between enzyme and GM on egg weight (EW) and egg mass (EM) (P<0.05). Adding enzyme, decreased EW and EM in 4% GM diet but had diverse effect in control diet. The results of this study indicated that GM can be used in laying hens diets in the second-cycle of production up to 8% without any adverse effects on performance. The GM diets reduced serum triglyceride (P<0.05) and slightly egg yolk cholesterol concentrations. Supplementation of beta-mannanase enzyme significantly improved FCR by decreasing FI and also has significantly effect on decreasing egg yolk cholesterol and serum triglyceride (P<0.05).
MULTIOBJECTIVE MIXED-INTEGER OPTIMIZATION SCHEDULING OF WEB SERVICES

O artigo discute o projeto de um processo de negocios online criado a partir de servicos web disponibilizados por diferentes fornecedores. Propomos uma metodologia de projeto baseado na otimizacao simultânea de varios criterios de qualidade: custo, tempo de execucao, confiabilidade, disponibilidade e reputacao. Uma formulacao do tipo Programacao Alvo para o problema de selecao de provedores de servicos web resulta em um problema de otimizacao linear inteiro-misto. Testes computacionais preliminares demonstram a validade da abordagem proposta.
SB-IGFET: An insulated-gate field-effect transistor using Schottky barrier contacts for source and drain

Insulated-gate field-effect transistors using Schottky barrier contacts for the source and drain have been studied. At room temperature, the device characteristics are Comparable to conventional IGFET's with similar electrode geometry. At lower temperatures, the current transport is by tunneling of carriers from the metal across the Schottky barrier to the semiconductor inversion layer.
A Churn-prevented Bandwidth Allocation Algorithm for Dynamic Demands In IaaS Cloud

In current IaaS datacnters, the network bandwidth resource is shared across tenants in a best-effort manner. In this way, tenants are interfered by each other, which leads to unpredictable bandwidth performance and further does harm to the applications deployed in data centers. Besides, with time-varying amount of users to support, tenants choose to adapt to dynamic demands by renting different number of virtual machines(VMs) from IaaS providers at different service stage. Tenants’ dynamic demand for VMs triggers the bandwidth reallocation, which produces bandwidth churn and also contributes the unpredictable performance. Those proposed strategies all put emphasis on VM’s performance isolation by reserving basic bandwidth for VMs. To our best of knowledge, there is no one that has taken the tenants’ dynamic demands for VMs into consideration. In this paper, we model this bandwidth allocation as an optimization problem, which is subject to the basic bandwidth guarantee and bandwidth churn. With the help of the definition of satisfaction degree for host machine, we design a simple and efficient algorithm to solve this optimization problem by using the inequality of arithmetic and geometric means. Under some experiments, we demonstrates our bandwidth allocation strategy can provide not only the predictable performance but also limit bandwidth churn, both of which improve performance of applications deployed in IaaS cloud.
An Optimal ILP Algorithm of Memory Access Variable Storage for DSP in Embedded System

In this paper, we proposed an optimal ILP algorithm on memory address code generation for DSP in embedded system. This paper using 0-1 ILP formulations DSP address generation units should minimize the memory variable data layout. We identify the possibility of the memory assignment of variable based on the constraints condition, and register the address code which a variable instructs in the program pointer. If the process sequence of the program is declared to the program pointer, then we apply the auto-in/decrement mode about the address code of the relevant variable. And we minimize the loads on the address registers to optimize the data layout of the variable. In this paper, in order to prove the effectiveness of the proposed algorithm, FICO Xpress-MP Modeling Tools were applied to the benchmark. The result that we apply a benchmark, an optimal memory layout of the proposed algorithm then the general declarative order memory on the address/modify register to reduce the number of loads, and reduced access to the address code. Therefor, we proved to reduce the execution time of programs.
Design and Implementation of Update Propagation Technique for Update Spatio-Temporal Data in Mobile Environments

Various studies were performed for providing the latest spatio-temporal information in mobile GIS Environments. The two-way synchronization scheme collects updated spatio-temporal data in the field and synchronizes with a server by using the wireless network. However, the other mobile terminals have to perform periodically synchronizes with a server. In this paper, we propose the update propagation scheme about spatio-temporal data collected from the mobile terminal. The update propagation scheme does considering various factors where an influence is in the update propagation. Therefore, it provides various update propagation policies according to each factors.
Design of single-sided linear induction motors for urban transit

A method of designing low-speed single-sided linear induction motors (SLIMs) for urban transit with maximum speed of 70 km/h is described. The SLIMs can be used not only for Maglev vehicles, but also for the vehicles of the LIM/wheel systems in which the SLIMs are used for propulsion and the wheels for suspension and guidance. The effects of varying principal design parameters on the performance characteristics and the motor weight are numerically investigated. The effects of small changes of the LIM specifications are also shown. The motor weight, the cost of secondary materials, and the energy consumption for a typical route (including regenerative braking operation) are considered as the criteria of goodness for SLIMs. A design example is tackled using the sequential unconstrained minimization technique and the simplex method. >
Generating predictive inferences while viewing a movie

This study investigated conditions that enable viewers to predict future events while viewing a movie. Predictions about future events can be supported by visual, auditory, and discourse information. These information sources serve to emphasize or introduce the individually necessary, and jointly sufficient, conditions that support predictive inference processes. They may also introduce new, anomalous information that can be understood in terms of future story events. In Experiment 1, viewers were instructed to generate predictions while watching the James Bond movie, Moonraker (Broccoli & Gilbert, 1979). The presence of support through visual and discourse modes increased the likelihood that participants would generate a specific prediction. Furthermore, the likelihood of generating a given prediction increased with multiple sources of visual and discourse modes of support. In Experiment 2, participants provided think‐aloud protocols at different locations in the film, but were not instructed to generate .
Development of a Quadrotor Test Bed — Modelling, Parameter Identification, Controller Design and Trajectory Generation

In this paper, a quadrotor test bed is developed. The technical approach for this test bed is firstly proposed by utilizing a commercial quadrotor, a Vicon motion capture system and a ground station. Then, the mathematical model of the quadrotor is formulated considering aerodynamic effects, and the parameter identification approaches for this model are provided accordingly. Based on the developed model and identified parameters, a simulation environment that is consistent with the real system is developed. Subsequently, a flight control strategy and a trajectory generation method, both of which are conceptually and computationally lightweight, are developed and tested in the simulation environment. The developed algorithms are then directly transplanted to the real system, and the experimental results show that their responses in the real-time flights match well with those from the simulations. This indicates that the control algorithms developed for the quadrotor can be preliminarily verified and refined though simulations, and then directly implemented to the real system, which could significantly reduce the experimental risks and costs. Meanwhile, real-time experiments show that the developed flight controller can efficiently stabilize the quadrotor when external disturbances exist, and the trajectory generation approach can provide safe guidance for the quadrotor to fly smoothly through cluttered environments with obstacle rings. All of these features are valuable for real applications, thus demonstrating the feasibility of further development.
Verifying stereo vision using structure from motion

Verifying Stereo Vision using Structure from Motion B.M. van Wyk Department of Mathematical Sciences, University of Stellenbosch, Private Bag X1, 7602 Matieland, South Africa. Thesis: MScEng (Applied Mathematics) March 2008 The medical radiation treatment facility at iThemba Labs requires a precise and robust patient positioning system. The current system makes use of an accurately calibrated multi-camera stereophotogrammetry (SPG) setup that is vulnerable to physical disruptions that invalidate system calibration. The task in this thesis is to design a vision system that can be used to verify the correct operation of the SPG system. We propose an unscented Kalman filter (UKF) based structure from motion (SFM) system for this purpose. Our SFM system does not rely on calibration information used by the SPG system and provides accurate reconstruction for verification purposes. The system is critically evaluated against a set of synthetic and real motion sequences.
Customer-focused Internet commerce at Cisco Systems

The rapid growth in electronic commerce places strong demands on business practices to meet customer needs in a timely and cost-effective manner. This article outlines some of the tools developed by Cisco to facilitate this growth while achieving excellent customer care and employee satisfaction. Attention is given to the steps Cisco has taken to organize to meet these dual objectives.
Adaptive Control of Quadruped Locomotion Through Variable Compliance of Revolute Spiral Feet

In this article we present a novel mechanical design of a robot leg that possesses active and variable passive compliance properties. The hip and knee joints provide active compliance, while the variable passive compliance comes from the spiral foot spring, mounted on the ankle joint, which changes its stiffness by rotating and changing contact angle with the ground. The stiffness of the foot for various contact angles was identified experimentally by using the strength tester measurement system. The method for damping coefficient identification, based on the observation of energy losses during the stance phase of leg hopping motion, is described and used to obtain the foot damping model. The adaptation of spiral foot stiffness to varying ground stiffness is achieved by extracting a leg contact time from a feedback signal provided by a flex sensor mounted on the foot. The experiments on a single leg and quadruped platforms have confirmed that the presented spiral foot design provides stiffness adaptability, partial recovery of the energy from the previous hop and restriction of stance contact time, which are all necessary conditions to obtain more efficient quadruped locomotion.
VLSI implementation of a 2-D DCT in a compiler

A 100 MHz realization of a 2D DCT (discrete cosine transform) in a compiler is presented. An optimal nibble-serial distributed arithmetic architecture is used for an efficient direct implementation of the DCT. The compiler, which is based on BiCMOS gate array technology and functional module generation technology, is used to support a rapid prototyping environment. An 8*8 inverse 2D DCT example in a 0.8 mu m BiCMOS gate array is given to illustrate the performance and flexibility of this approach. The design flow and a proposed development system, the Signal Analysis Workstation (SAW), are shown for customized system integrations. <<ETX>>
Automatic detection and feature estimation of windows in 3D urban point clouds exploiting façade symmetry and temporal correspondences

Due to the ever increasing demand for more realistic three-dimensional (3D) urban models coupled with recent advancements in ground-based light detection and ranging (lidar) technologies, recovering details of building façade structures, such as windows, has gained considerable attention. However, fewer laser points are usually available for windows as window frames occupy only small parts of building façades while window glass also offers limited reflectivity. This insufficient raw laser information makes it very difficult to detect and recover reliable geometry of windows without human interaction. So, in this article, we present a new method that automatically detects windows of different shapes in 3D lidar point clouds obtained from mobile terrestrial data acquisition systems in the urban environment. The proposed method first segments out 3D points belonging to the building façade from the 3D urban point cloud and then projects them onto a two-dimensional (2D) plane parallel to the building façade. After point inversion within a watertight boundary, windows are segmented out based on geometrical information. The window features/parameters are then estimated exploiting both symmetrically corresponding windows in the façade and temporally corresponding windows in successive passages, based on analysis of variance measurements. This unique fusion of information not only accommodates for lack of symmetry but also helps complete missing features due to occlusions. The estimated windows are then used to refine the 3D point cloud of the building façade. The results, evaluated on real data using different standard evaluation metrics, demonstrate not only the efficacy (with standard accuracy ) but also the technical edge of the proposed method.