Efficient computation of the first passage time distribution of the generalized master equation by steady-state relaxation

The generalized master equation or the equivalent continuous time random walk equations can be used to compute the macroscopic first passage time distribution (FPTD) of a complex stochastic system from short-term microscopic simulation data. The computation of the mean first passage time and additional low-order FPTD moments can be simplified by directly relating the FPTD moment generating function to the moments of the local FPTD matrix. This relationship can be physically interpreted in terms of steady-state relaxation, an extension of steady-state flow. Moreover, it is amenable to a statistical error analysis that can be used to significantly increase computational efficiency. The efficiency improvement can be extended to the FPTD itself by modelling it using a Gamma distribution or rational function approximation to its Laplace transform

Animasi Interaktif Pengenalan Hewan Untuk Pendidikan Anak Usia Dini

—In the current era of globalization, the development of the intellect of a child must be cultivated from an early age. This is because the brain absorption are very good at age 1-5 years. One of the things that can support a child\u27s brain absorption is through education, yet still very much children who do not understand and know about the animals that live in habitats such as land, air and sea. Incomprehension of the child to a knowledge might be due to what is being taught less attractive so that the curiosity children are reduced. One of the things that can support the development of a child\u27s brain is through interactive education. Therefore need a learning tool based interactive animation introduction of animals which aims to introduce the animal to early childhood education. In the writing of this thesis, an interactive animation created by the method of System Development Life Cycle (SDLC) waterfall that provided the software life flow approach in sequence starting from the analysis, design, coding, testing and supporting stage. Information technology-based learning methods through interactive animations have many advantages from the conventional method of learning in children ages 1-5 years, display interactive animation in education can help students in the delivery of the material and more communicative so that it can more easily remember the lesson material. Keywords: Early Childhood Education, Interactive Animation, Introduction to Animals. Intisari— Pada era globalisasi saat ini, pengembangan daya pikir terhadap seorang anak harus ditanam sejak usia dini. Hal ini disebabkan karena daya serap otak anak sangat baik pada usia 1-5 tahun. Salah satu hal yang dapat mendukung daya serap otak anak adalah dengan melalui pendidikan, namun masih sangat banyak anak-anak yang tidak mengerti dan paham tentang hewan yang hidup pada habitatnya seperti darat, udara dan laut. Ketidakpahaman anak terhadap suatu pengetahuan mungkin disebabkan karena apa yang diajarkan kurang menarik sehingga rasa ingin tahu anak berkurang. Salah satu hal yang dapat mendukung perkembangan otak anak adalah melalui pendidikan interaktif. Oleh Karena itu perlu sebuah alat pembelajaran berbasis animasi interaktif pengenalan hewan yang bertujuan untuk mengenalkan hewan untuk pendidikan anak usia dini. Dalam penulisan Pene;itian ini, animasi interaktif dibuat dengan metode System Development Life Cycle (SDLC) waterfall yang menyediakan pendekatan alur hidup perangkat lunak secara berurutan dimulai dari analisis, desain, pengkodean, pengujian dan tahap pendukung. Metode pembelajaran berbasis teknologi informasi melalui animasi interaktif memiliki banyak keunggulan dari metode belajar konvensional pada anak usia 1-5 tahun, tampilan animasi interaktif dalam dunia pendidikan dapa

Simulation and Analysis Chain for Acoustic Ultra-high Energy Neutrino Detectors in Water

Acousticneutrinodetectionisapromisingapproachforlarge-scaleultra-highenergyneutrinodetectorsinwater.In this article, a Monte Carlo simulation chain for acoustic neutrino detection devices in water will be presented. The simulation chain covers the generation of the acoustic pulse produced by a neutrino interaction and its propagation to the sensors within the detector. Currently, ambient and transient noise models for the Mediterranean Sea and simulations of the data acquisition hardware, equivalent to the one used in ANTARES/AMADEUS, are implemented. A pre-selection scheme for neutrino-like signals based on matched filtering is employed, as it is used for on-line filtering. To simulate the whole processing chain for experimental data, signal classification and acoustic source reconstruction algorithms are integrated in an analysis chain. An overview of design and capabilities of the simulation and analysis chain will be presented and preliminary studies will be discussed.Comment: 6 pages, 5 figures, ARENA 2012. arXiv admin note: substantial text overlap with arXiv:1304.057

Equivariant differential characters and symplectic reduction

We describe equivariant differential characters (classifying equivariant circle bundles with connections), their prequantization, and reduction

Zero-bias conductance peak and Josephson effect in graphene-NbTiN junctions

We report electronic transport measurements of graphene contacted by NbTiN electrodes, which at low temperature remain superconducting up to at least 11 Tesla. In devices with a single superconducting contact, we find a more than twofold enhancement of the conductance at zero bias, which we interpret in terms of reflectionless tunneling. In devices with two superconducting contacts, we observe the Josephson effect, bipolar supercurrents and Fraunhofer patterns.Comment: 6 pages, 5 figure