Search results for "Sign"

Laser fluence, repetition rate and pulse duration effects on paint ablation

2006

Abstract The efficiency (mm3/(J pulse)) of laser ablation of paint was investigated with nanosecond pulsed Nd:YAG lasers (λ = 532 nm) as a function of the following laser beam parameters: pulse repetition rate (1–10,000 Hz), laser fluence (0.1–5 J/cm2) and pulse duration (5 ns and 100 ns). In our study, the best ablation efficiency (η ≅ 0.3 mm3/J) was obtained with the highest repetition rate (10 kHz) at the fluence F = 1.5 J/cm2. This ablation efficiency can be associated with heat accumulation at high repetition rate, which leads to the ablation threshold decrease. Despite the low thermal diffusivity and the low optical absorption of the paint (thermal confinement regime), the ablation th…

Formation structure of optimality by thermoeconomics: disassembling thermodynamic and external influences in energy systems’ design

2009

In this paper an original thermoeconomic approach for the optimization of complex energy systems is presented, based on a revitalized concept of “scope”, and therefore indicated as Scope Oriented Thermoeconomics (SOT). In plants including dissipative components, it allows to formulate non-arbitrary allocation criteria as concerns marginal costs; consequently, the optimization process is disassembled to recognize the Formation Structure of Optimality, i.e. the specific influences of thermodynamic and economic parameters in the path toward the optimal design. The method is applied to a very didascalic example, that is the optimization of the condensation temperature in a vapour compression ch…

Multidisciplinary Design Optimization in an integrated CAD/FEM environment

2008

Computer-aided game design

2008

Computer aided scheduling and routing of vehicle-carrier fleet—a case study

2016

This paper presents a case study of development of an information system for a large enterprise from vehicle-transport industry. A novel optimization model and algorithms developed to solve scheduling and routing of vehicle-carrier fleet are presented and discussed. Carried out qualitative experiments confirmed the usability of developed user-guided search paradigm and high performance of autonomous algorithmic solution search methods.

Le lettere crescono nel giardino dell'attività umana

2017

Nutro molto rispetto per chi si occupa di tipografia, a qualsiasi livello lo faccia, come attività progettuale, come ambito di ricerca, come materia di insegnamento. Trovo che sia una disciplina che richiede un lavoro importante, silenzioso, metodico, una attenta dedizione, che impone di studiare la forma delle lettere, osservando i tanti piccoli segni a distanze differenti, come in un processo di avvicinamento a un territorio, in cui gli elementi possono apparire brancolanti sul bianco del foglio come lupi su una distesa di neve, oppure serrati come soldati in ranghi di un esercito ordinato su una superficie occupata.

«Necessità della tirannide». Governo autoritario e ideologia della comunità nella prima metà del Trecento

2013

Method and Practical Guidelines for Overcoming Enterprise Architecture Adoption Challenges

2017

During the last few years, interest towards Enterprise Architecture (EA) has increased, not least due to anticipated benefits resulting from adopting it. For instance, EA has been argued to provide cost reduction, technology standardisation, process improvement, and strategic differentiation. Despite these benefits, the EA adoption rate and maturity are still low. Consequently, EA benefits are not realised. A major reason hindering the adoption is that EA is not understood correctly. This paper aims for minimising the effect of the lack of understanding EA to adopting EA. Based on the research conducted in Finnish public sector, we propose an improved Enterprise Architecture Adoption Method…

Utterance fluency in Finnish Sign Language L1 and L2 signing

2021

This paper explores the fluency of first language (L1) and second language (L2) signers of Finnish Sign Language. The phenomenon was approached by measuring utterance fluency using speed and breakdown parameters. The findings revealed clear differences between L1 and L2 signers regarding the measured fluency parameters. On average, L1 signers produced more signs and had fewer breakdowns per minute than L2 signers. However, the slowest L1 signer and the fastest L2 signer were more similar to each other than the averages of the L1 group’s (129.3) and the L2 group’s (71.4) signs per minute might suggest. The number of breakdowns per minute differed between the groups, with L2 signers breaking …

Skeleton-Based Multiview Reconstruction

2016

International audience; The advantage of skeleton-based 3D reconstruction is to completely generate a single 3D object from well chosen views. Having numerous views is necessary for a reliable reconstruction but projections of skeletons lead to different topologies. We reconstruct 3D objects with curved medial axis (whose topology is a tree) from the perspective skeletons on an arbitrary number of calibrated acquisitions. The main contribution is to estimate the 3D skeleton, from multiple images: its topology is chosen as the closest to those of the perspective skeletons on the set of images, which means that the number of topology changes to map the 3D skeleton topology to topologies on im…