Search results for "Manipulation"

Fixed-size Quadruples for a New, Hardware-Oriented Representation of the 4D Clifford Algebra

2010

Clifford algebra (geometric algebra) offers a natural and intuitive way to model geometry in fields as robotics, machine vision and computer graphics. This paper proposes a new representation based on fixed-size elements (quadruples) of 4D Clifford algebra and demonstrates that this choice leads to an algorithmic simplification which in turn leads to a simpler and more compact hardware implementation of the algebraic operations. In order to prove the advantages of the new, quadruple-based representation over the classical representation based on homogeneous elements, a coprocessing core supporting the new fixed-size Clifford operands, namely Quad-CliffoSor (Quadruple-based Clifford coproces…

Accelerating Clifford Algebra Operations using GPUs and an OpenCL Code Generator

2015

Clifford Algebra (CA) is a powerful mathematical language that allows for a simple and intuitive representation of geometric objects and their transformations. It has important applications in many research fields, such as computer graphics, robotics, and machine vision. Direct hardware support of Clifford data types and operators is needed to accelerate applications based on Clifford Algebra. This paper proposes a mixed software-hardware system that exploits the computational power of Graphics Processing Units (GPUs) to accelerate Clifford operations. A code generator, namely OpenCLifford, is presented that automatically generates Java and C libraries for the direct support of Clifford ele…

Design Space Exploration of Parallel Embedded Architectures for Native Clifford Algebra Operations

2012

In the past few decades, Geometric or Clifford algebra (CA) has received a growing attention in many research fields, such as robotics, machine vision and computer graphics, as a natural and intuitive way to model geometric objects and their transformations. At the same time, the high dimensionality of Clifford algebra and its computational complexity demand specialized hardware architectures for the direct support of Clifford data types and operators. This paper presents the design space exploration of parallel embedded architectures for native execution of four-dimensional (4D) and five-dimensional (5D) Clifford algebra operations. The design space exploration has been described along wit…

An FPGA Implementation of a Quadruple-Based Multiplier for 4D Clifford Algebra

2008

Geometric or Clifford algebra is an interesting paradigm for geometric modeling in fields as computer graphics, machine vision and robotics. In these areas the research effort is actually aimed at finding an efficient implementation of geometric algebra. The best way to exploit the symbolic computing power of geometric algebra is to support its data types and operators directly in hardware. However the natural representation of the algebra elements as variable-length objects causes some problems in the case of a hardware implementation. This paper proposes a 4D Clifford algebra in which the variable-length elements are mapped into fixed-length elements (quadruples). This choice leads to a s…

Construcción y justificación colonial: el discurso dominante en Legiones y Falanges

2018

During the 20th century, European colonial regimes used numerous and different means in order to impose their politics and support their practices, and, as my research wants to show, in this frame the press played one of the most influential roles. In fact, drawing upon the bilingual magazine Legioni e Falangi. Rivista d’Italia e di Spagna/Legiones y Falanges. Revista mensual de Italia y de España (1940-43), this study aims at defining colonial press as paradigmatic of the relations between the dominant and the dominated and as an instrument of identity construction as well. The goal of my work is to reveal the argumentative and persuasive strategies involved in the conversion of the journa…

Una verifica della manipulation thesis

2011

A fixed point theorem for uniformly locally contractive mappings in a C-chainable cone rectangular metric space

2011

Recently, Azam, Arshad and Beg [ Banach contraction principle on cone rectangular metric spaces, Appl. Anal. Discrete Math. 2009] introduced the notion of cone rectangular metric spaces by replacing the triangular inequality of a cone metric space by a rectangular inequality. In this paper, we introduce the notion of c-chainable cone rectangular metric space and we establish a fixed point theorem for uniformly locally contractive mappings in such spaces. An example is given to illustrate our obtained result.

Manual therapy of the mandibular accessory ligaments for the management of temporomandibular joint disorders.

2011

Temporomandibular joint disorders are characterized by chronic or acute musculoskeletal or myofascial pain with dysfunction of the masticatory system. Treatment modalities include occlusal splints, patient education, activity modification, muscle and joint exercises, myofascial therapy, acupuncture, and manipulative therapy. In the physiology of the temporomandibular joint, accessory ligaments limit the movement of the mandible. A thorough knowledge of the anatomy of accessory ligaments is necessary for good clinical management of temporomandibular joint disorders. Although general principles regarding the anatomy of the ligaments are relatively clear, very little substantiated information …

Translation Studies. Tradurre: manipolare e costruire realtà

2017

Ricostruendo storicamente le teorie della traduzione l'autore prende in esame le azioni di manipolazione, volontaria o meno, che il traduttore di trova a praticare sul testo a lui affidato. Recostructing the history of translation, the book signs the caracter of manipulation that translator is engaged to make in his work, voluntary or not.

Digital contents as a tool to address research reproducibility crisis in psychology: A case study on sexual attraction under conditions of high arous…

2020

In the field of behavioral sciences, a crisis of the replicability of data took place. Among the reasons of the crisis, there is the difficulty of replicating some classical experimental settings and the lack of reproduced studies. Nowadays, digital contents might provide valuable opportunities to re-create specific environmental situations and manipulations in a safe and cost-saving way. The present study is a preliminary attempt to replicate the relationship between arousal manipulation and sexual attraction as it was assessed in the classical study by Dutton and Aron in 1974. Here, 30 male subjects will be randomly assigned to high or low arousal condition (induced with digital contents)…