Search results for "layout"
showing 10 items of 48 documents
SPA centru tēls to tīmekļa vietnēs: žanra un multimodālā analīze
2018
Lai klients būtu ieinteresēts turpmākā saziņā ar uzņēmumu, ir svarīgi radīt neaizmirstamu pirmo iespaidu, kas ir viena no mājaslapas funkcijām. Šī pētījuma mērķis bija raksturot sešas SPA centru mājaslapas. Lai sasniegtu šī pētījuma mērķi, tika izvēlēta uz korpusu balstīta pieeja, kas ietvēra Beitmena (Bateman) (2008) izstrādāto žanra un multimodālo (GeM) modeli un Suena (Suen) (2009) piecu soļu modeli, kas tika izmantots mājaslapas izkārtojuma un retoriskās struktūras analīzei. Turklāt Kresa un van Lēuvena (Kress and van Leeuwen) (2006) sociālās semiotikas modelis tika izmantots, lai veiktu attēlu analīzi, kas noteiktu kā vizuālās reprezentācijas metafunkcija palīdz veidot SPA centra tēlu …
Designing a graphics processing unit accelerated petaflop capable lattice Boltzmann solver: Read aligned data layouts and asynchronous communication
2017
The lattice Boltzmann method is a well-established numerical approach for complex fluid flow simulations. Recently, general-purpose graphics processing units (GPUs) have become available as high-performance computing resources at large scale. We report on designing and implementing a lattice Boltzmann solver for multi-GPU systems that achieves 1.79 PFLOPS performance on 16,384 GPUs. To achieve this performance, we introduce a GPU compatible version of the so-called bundle data layout and eliminate the halo sites in order to improve data access alignment. Furthermore, we make use of the possibility to overlap data transfer between the host central processing unit and the device GPU with comp…
The facility layout problem approached using a fuzzy model and a genetic search
2005
The problem of facility layout design is discussed, taking into account the uncertainty of production scenarios and the finite production capacity of the departments. The uncertain production demand is modelled by a fuzzy number, and constrained arithmetic operators are used in order to calculate the fuzzy material handling costs. By using a ranking criterion, the layout that represents the minimum fuzzy cost is selected. A flexible bay structure is adopted as a physical model of the system while an effective genetic algorithm is implemented to search for a near optimal solution in a fuzzy contest. Constraints on the aspect ratio of the departments are taken into account using a penalty fun…
A multi-objective approach to facility layout problem by genetic search algorithm and Electre method
2006
Abstract Classical approaches to layout design problem tend to maximise the efficiency of layout, measured by the handling cost related to the interdepartmental flow and to the distance among the departments. However, the actual problem involves several conflicting objectives hence requiring a multi-objective formulation. Multi-objective approaches, recently proposed, in most cases lead to the maximisation of a weighted sum of score functions. The poor practicability of such an approach is due to the difficulty of normalising these functions and of quantifying the weights. In this paper, this difficulty is overcome by approaching the problem in two subsequent steps: in the first step, the P…
Sulle orme del consumatore affinity analysis e knowledge visualization per il processo decisionale
2016
L’articolo analizza i reali comportamenti di acquisto dell’acquirente all’interno del punto vendita e individua i pattern latenti più significativi attraverso un’analisi di affinità di 128.364 scontrini estratti da un dataset di 715.662 transazioni effettuate in un anno. Lo studio individua le strutture associative più ricorrenti relativamente alla singola merceologia. Attraverso la tecnica della Market Basket Analysis è stato possibile individuare le categorie merceologiche che creano “poli d’attrazione” sul punto vendita stimolando acquisti di altre categorie. In particolar modo, applicando le regole associative sul punto vendita è stato possibile identificare le “aree calde” e le “aree f…
A coded mask for γ-ray astronomy. Design and calibration
2003
Abstract The high-resolution γ-ray spectrometer (SPI) is one of the two main instruments on board the ESA INTEGRAL satellite successfully launched in October 2002. SPI uses coded aperture mask technique in order to have imaging capabilities at the energy band (20 keV–8 MeV) it will study celestial sources. The SPI imaging performance depends critically on the quality of the coded mask response and also on the precise knowledge of such response function. In this paper we present a general description of the SPI Coded Mask design together with its main features. Scientific impact of INTEGRAL SPI Coded Mask design on the instrument capabilities is also discussed. Results obtained for Mask cali…
A non dominated ranking Multi Objective Genetic Algorithm and electre method for unequal area facility layout problems
2013
The unequal area facility layout problem (UA-FLP) comprises a class of extremely difficult and widely applicable optimization problems arising in diverse areas and meeting the requirements for real-world applications. Genetic Algorithms (GAs) have recently proven their effectiveness in finding (sub) optimal solutions to many NP-hard problems such as UA-FLP. A main issue in such approach is related to the genetic encoding and to the evolutionary mechanism implemented, which must allow the efficient exploration of a wide solution space, preserving the feasibility of the solutions and ensuring the convergence towards the optimum. In addition, in realistic situations where several design issues…
Right-turn Bypass Lanes at Roundabouts: Geometric Schemes and Functional Analysis
2012
Right-turn bypass lanes can be implemented in conventional and innovative roundabout intersections to increase the capacity and improve the global functional performances. The Right-turn bypass lanes (also called slip lanes) can be distinguished according to the planimetric layout and the entry control type (stop, yield slip or Free Flow acceleration lane). This paper presents a closed-form model for the estimation of capacity, delays and level of service of roundabout equipped with Right-turn bypass lanes, considering the effect of geometric slip lane schemes, control type, vehicular and pedestrian flow. In order to examine the traffic conditions which can benefit from slip lane roundabout…
NUOVE FRONTIERE MUSEOGRAFICHE : immaterialità e multimedialità del museo narrativo
2021
Il contributo esplora, anche attraverso la lettura di alcuni casi studio, gli aspetti costitutivi e connotativi di ciò che può essere definita la nuova ‘frontiera della museografia’. Una ‘frontiera’ riconoscibile nella definizione di museo strutturato secondo il concetto ‘dell’allestimento integrato’ che si basa, prevalentemente, sul connubio tra strumentazioni tecnologiche avanzate, arte e interattività dei sistemi divulgativi dei contenuti museografici. In questi ultimi anni sono state sviluppate diverse esperienze museali caratterizzate da indagini sui nuovi linguaggi tecnologici, ma che non tralasciano la fondamentale elaborazione di scopi e contenuti degli stessi progetti allestitivi c…
Multi objective genetic algorithms for unequal area facility layout problems: A survey
2013
The Unequal Area Facility Layout Problem (UA-FLP) comprises a class of extremely difficult and widely applicable optimization problems arising in diverse areas and meeting the requirements for real-world applications. In this paper we present our existing works of the past decade showing the evolutions obtained in the Genetic Algorithms (GA) used to solve the facility layout problem. GA have recently proven their effectiveness in finding (sub) optimal solutions to many NP-Hard problems such as UA-FLP. A main issue in such approach is related to the genetic encoding and to the evolutionary mechanism implemented, which must allow the efficient exploration of a wide solution space, preserving …