A hypergraph F is a set family defined on vertex V. The dual of the minimal subsets H V such that F∩H≠0̸ for any F∈F. computation equivalent to several problems, as hitting enumeration subset family, generation problem maximal frequent and infrequent sets, so on. Although many algorithms have been proposed problem, best our knowledge, none them can work large-scale input with large number sets. In this paper, we propose efficient checking minimality pruning methods. These enable us construct...

The effective use of those local wisdoms is strongly desired, especially in developing countries, because it quite difficult for countries to allocate enough budgets constructing hard-type countermeasures against tsunami. Among tsunami hazard, this study evaluated the efficiency a hollow topography which can be seen on beach along Lampon village Indonesia. These artificial hollows are arrayed as one reduce intensity inundated flow. numerical simulation inundation energy was conducted...

The most significant measure in reducing tsunami disaster is an early evacuation. aim of this study to developments a dynamic evacuation model with using simulation Agent-Based Modeling and Simulation (ABMS). Shelter Plan Analysis also conducted establish applicable places. All analysis based on geographic information system (GIS) data such as shelter location, networks, housing other information. plan the methods evaluate shelter. important variable nearest accessibility existing road from...

During tsunami action on a structure, the structure is subjected to heavy loads with complex phenomena which include interactions among tsunami, and air. In order mitigate damages structures, it important understand characteristics of hydraulic acting structures taking into account above interactions. present study, forces building are investigated using two-phase flow model. Two types models, without openings openings, were dealt with; effects under examined. The simulation results compared...

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 539:93-109 (2015) - DOI: https://doi.org/10.3354/meps11499 Roles of vertical behavior in open-ocean migration teleplanic larvae: a modeling approach larval transport Japanese spiny lobster Yoichi Miyake1,2,*, Shingo Kimura1,2, Sachihiko Itoh2, Seinen Chow3, Keisuke Murakami4, Satoshi Katayama5, Aigo...

A variety of smells can be realized by blending multiple odor components using an olfactory display. Since a set to cover the entire range has not yet been known, we studied method selecting large-scale mass spectrum database. Basis vectors corresponding were extracted NMF (nonnegative matrix factorization) method. Then, recipe target was obtained nonnegative least-squares The basis successfully from 10,000 compounds within tolerable error. Moreover, spectra 104 odors composed 322 could...

Local wisdoms such as a tradition, land-use system and etc. had sometimes mitigated tsunami damages in Indonesia. The effective use of those local is strongly desired especially developing countries, because it quite difficult for countries to allocate enough budgets constructing hard type countermeasures against tsunami. Among hazard, this study evaluates the efficiency hollow topography which can be seen on beach along Lampon village Indonesia Artificial hollows are arrayed one reduce...

The multi-vehicle covering tour problem (m-CTP) is defined on a graph G = (V ∪ W, E), where V set of vertices that can be visited and W must covered but cannot visited. Each vertex in covers subset W. Given the costs edges (v <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">i</sub> , v xmlns:xlink="http://www.w3.org/1999/xlink">j</sub> ) ∈ E, objective m-CTP to obtain total minimum cost tours V, while all...

This article shows our research efforts toward the development of an olfactory display system for presenting odors with a vivid sense reality. A multi-component is developed, which enables generation variety by blending multiple odor vapors arbitrary ratios. In this demo, two contents using will be demonstrated. The first one experiment on approximation components extracted from mass spectrum database. second reproduction video smell. temporal changes kind and its concentration can recorded...

The understanding of interactions between tsunami and structure is very important to consider countermeasures, though the interaction includes complex phenomena. For example, two-phase flow can be found when hits a bridge with entrapping air beneath it. sometimes affects forces acting on bridge, effect entrapped has taken into account investigate forces. This study intended using model. Three models were tested in this study, where slab without girders it, two girders, three girders....

A new type of seawall (non-wave overtopping seawall) having a deep circular cross section is proposed in this study. The basic characteristics are investigated through wave tank experiments and numerical simulations. In the experiments, measurements made on minimum crest height which satisfies non-wave-overtopping condition, pressure water spray transported behind seawall. optimum dimension dissipating blocks setting front for checking as well securing stability. fluid motion near reproduced...

A contact motion between two solids in a liquid can give rise to cavity. To investigate this phenomenon, processes of cavity generation walls making accelerated relative motions their normal and tangential directions have been observed detail, using microscopes high-speed video cameras. The results are as follows: subsequent expansion influenced by factors such the initial clearance walls, acceleration motion, pressure, viscosity, area. In contrast, air solubility oil does not affect...

The vehicle routing problem with stochastic demand (VRPSD) is one of the most important problems in distribution and transportation. classical models for are chance-constrained model penalty model. This paper proposes hybrid which combines travel cost less than that worst case guaranteed though may have more We formulate VRPSD as a set covering this solved using column generation approach. propose solution methods method based on saving algorithm. In numerical results, we compare results model,

This paper presents the application of detached breakwater to reduce wave energy for protecting mangrove planting site. Initial mangroves still needs seawater their growth, but they will be distracted by big wave. How is should designed this purpose objective research. research simulated propagation at existing condition and under some alternative designs find out optimum design The CADMAS-SURF a numerical model that was used simulation. Bengkalis coast in Indonesia picked up as study area...

A hypergraph ${\cal F}$ is a set family defined on vertex $V$. The dual of the minimal subsets $H$ $V$ such that $F\cap H \ne \emptyset$ for any $F\in {\cal F}$. computation equivalent to many problems, as hitting enumeration subset family, cover enumeration, and transversals. Although algorithms have been proposed solving problem, best our knowledge, none them can work large-scale input with large number output sets. This paper focuses developing time- space-efficient problem. We propose...