82 research outputs found
Geometric programming: a programming approach to geometric design
No full textThis article presents a functional programming approach to geometric design with embedded polyhedral complexes. Its main goals are to show the expressive power of the language as well as its usefulness for geometric design. The language, named PLASM (the Programming LAnguage for Solid Modelling), introduces a very high level approach to “constructive” or “generative” modelling. Geometrical objects are generated by evaluating some suitable language expressions. Because generating expressions can be easily combined, the language also extends the standard variational geometry approach by supporting classes of geometric objects with varying topology and shape. The design language PLASM can be roughly considered as a geometry-oriented extension of a subset of the functional language FL. The language takes a dimension-independent approach to geometry representation and algorithms. In particular it implements an algebraic calculus over embedded polyhedra of any dimension. The generated objects are always geometrically consistent because the validity of geometry is guaranteed at a syntactical level. Such an approach allows one to use a representation scheme which is weaker than those usually adopted in solid modelers, thus encompassing a broader geometric domain, which contains solids, surfaces, and wire-frames, as well as higher-dimensional objects
PLASM Functional Approach to Design: Representation of Geometry
No full textPLASM (the Programming Language for Solid Modelling) is a solid-modelling-oriented design language strongly inspired by the functional language FL. In a PLASM environment, every geometrical object is generated by evaluating a suitable language expression which produces a polyhedral solid model. The language adopts a dimension-independent approach to geometry representation and algorithms. The generated objects are always geometrically consistent since the validity of geometry is guaranteed at a syntactical level. In fact (a) each well-formed expression is obtained by proper composition of well-formed subexpressions, (b) the evaluation of a well-formed (and polyhedrally typed) expression produces a valid solid model. In this paper, the representation scheme used in the language is given and some language scripts are shown and discussed
Le colombaie nel vicentino
No full textQuesto contributo, facente parte di un più ampio progetto, ha lo scopo di riportare alla giusta attenzione una pratica largamente utilizzata in gran parte del mondo da molti secoli, ma ormai spesso abbandonata: l’allevamento dei colombi nelle colombaie, manufatti appositamente concepiti e costruiti allo scopo. Questa pratica era nel passato molto diffusa anche nel Vicentino e ne restano numerose tracce materiali, le colombaie, e immateriali, come i toponimi e la tradizione culinariaThis contribution, which is part of a larger project, aims to bring to the right attention a practice widely used in most of the world for many centuries, but now often abandoned: the breeding of pigeons in dovecotes, artifacts specially conceived and built at scope. In the past, this practice was also widespread in the Vicenza area and numerous material traces remain, such as the dovecotes, and immaterial ones, such as toponyms and culinary traditio
Modeling semantics for building deconstruction
No full textIn this paper we discuss the motivation, the technology, the design and the use-model of a novel web service for quantity surveyors, aiming to exploit virtual and augmented reality methods to implement a "zero waste" model, i.e. a new design paradigm where the waste materials from demolition become resources for reconstruction. The goal of this project is to provide virtual/augmented reality tools through quick modeling of buildings and their fast augmentation with semantic content
Assessment of the blood biochemistry and antibody presence of Mycoplasma gallisepticum inoculated native chicken treated with garlic (Allium sativum) emulsified concentrate
No full textAbstract onlyChronic respiratory disease caused by Mycoplasma galliseptium lead to many deaths among poultry producers in the Philippines, in which it is a serious threat on poultry farmers. Mycoplasma gallisepticum cannot be fully eliminated and there is no vaccine available, in which only antibiotics are used to maintain low levels of Mycoplasma gallisepticum in the flock. Alternative antibiotic and immunostimulant which are plant based used to manage this type of infection to avoid antimicrobial resistance (AMR), as a result, Garlic (Allium sativum) Emulsified Concentrate for poultry is necessary. A study found out that once a chicken is infected with Mycoplasma gallisepticum it was observed that there was a decreased antioxidant responses in bursa of fabricius (BOF) tissues of chickens. This study was conducted to test the immunostimulatory and the effect on blood biochemistry on Philippine Native Chicken using ELISA test and Biochemistry Analyzer, respectively. A Paired T-test Analysis was employed to examine the data gathered. Six (6) healthy chickens (hens) were used in this study. Results revealed that all infected chickens’ number of antibodies increased when treated with Garlic Emulsified Concentrate and only had minimal changes on the blood chemistry of the chicken. Furthermore, it was observed that after it received treatment, the chicken’s vitality returned, and they started to intake food and became more active as if they were not infected on the compared to when they got infected, they started to intake less feeds and became lethargic.Includes bibliographical referencesBachelor of Science in Agricultur
Critical infrastructures as complex systems: a multi-level protection architecture
No full textThis paper describes a security platform as a complex system of holonic communities, that are hierarchically organized, but self-reconfigurable when some of them are detached or cannot otherwise operate. Furthermore, every possible subset of holons may work autonomously, while maintaining self-conscience of its own mission, action lines and goals. Each holonic unit, either elementary or composite, retains some capabilities for sensing (perception), transmissive apparatus (communication), computational processes (elaboration), authentication/authorization (information security), support for data exchange (visualization & interaction), actuators (mission), ambient representation (geometric reasoning), knowledge representation (logic reasoning), situation representation and forecasting (simulation), intelligent feedback (command & control). The higher the organizational level of the holonic unit, the more complex and sophisticated each of its characteristic features
Clíticos na história do português à luz do teatro vicentino
No full textThis paper reexamines clitic placement in the history of Portuguese from the perspective of new data and the concept of ‘grammar competition’ (Kroch 1989, 2001). On the basis of a small corpus extracted from the plays of Gil Vicente, it is shown that in sixteenth century Portuguese, in addition to the ‘proclitic’ grammar that pervades written texts, there is an ‘enclitic’ grammar attested to by the popular characters in these plays. This presumably vernacular grammar is closer in important respects to Old Portuguese and contemporary European Portuguese than the prestige literary sixteenth century ‘proclitic’ grammar. Thus Gil Vicente’s plays provide the contemporary researcher with a valuable glimpse of an ‘enclitic’ sixteenth century grammar, which appears to be the hitherto missinglink connecting the distinct patterns of clitic placement in finite clauses in Old Portuguese and contemporary European Portuguese. The competing grammars seem to have pertained to distinct social registers. Although the prestige ‘proclitic’ grammar was at the time dominant in written texts and widespread across Iberian Romance, the vernacular ‘enclitic’ grammar gradually replaced it subsequently.O objectivo deste trabalho é repensar o tema da colocação dos pronomes clíticos na história do português, observando dados que não haviam sido considerados e recolocando o problema numa nova perspectiva. O estudo do teatro vicentino vem revelar que no português quinhentista, época de predomínio esmagador da próclise em frases finitas nos textos portugueses, uma outra gramática mais enclítica, e portanto mais afim quer do português antigo quer do português europeu contemporâneo, tinha também existência. A desigual visibilidade das duas gramáticas nos textos quinhentistas decorrerá do seu diferente estatuto sociolinguístico. É a menos visível delas que podemos encontrar nas falas dos personagens populares de Gil Vicente, e é essa a gramáticaque constitui o “elo (quase) perdido” do percurso evolutivo do português antigo ao português europeu contemporâneo. A gramática quinhentista que domina a produção textual decorre, por sua vez, de um caminho evolutivo que parece ter sido comum a todas as línguas ibéricas, mas que não teve continuidade em Portugal e na Galiza. Esta gramática a que poderemos chamar “pan-ibérica” foi perdendo espaço a partir do século XVII, até se extinguir, apesar da posição de vantagem que durante séculos manteve relativamente à gramática mais “enclítica” e popular
- …
