28 research outputs found
HARDNESS VERSUS TIME DEPENDENCY DURING ARTIFICIAL AGEING OF AlMgSi0.5 ALUMINIUM ALLOY
No full textAl-Mg-Si aluminium alloy are characterized by excellent deformability, but mechanical properties are not significant in extruded state. Improvement of mechanical properties is achieved by heat treatment, a process which allows formation of metastable precipitates during subsequent ageing. In this work, hardness versus time dependency for artificially aged AlMgSi0.5 (EN AW-6060) aluminium alloy at 185°C is presented, along with qualitative and quantitative analysis of results
Notes on children, environment and architecture
No full text... Notes on Children, Environment and Architeclure appeared as a result of the Fellowship I was given by The Delft University of Technology, Faculty for Architeclure. This research is primarily written for the students of architecture in Delft and Zagreb, and for all those people who are interested in the improvement of children's environment. These "Notes... " are notes on ideas, theories, people and objects, which should become familiar to everybody who intends to create architecture for a children's world . I hope that people reading this will not only acquire conceptual data about children, environment and architeclure; but also that they will understand something ca lied mental grammar, or (to use Piaget's words here) that they will acquire the elementary schemata necessary in designing spa ces for education.ArchitectureArchitectur
Electrochemical Properties of Aluminium Alloy EN AW 6060
No full textAluminjske slitine serije 6xxx karakteriziraju odlična deformabilnost, mogućnost toplinskog očvršćivanja, dobra otpornost koroziji i relativno dobra mehanička svojstva. Stoga se u obliku poluproizvoda (u vidu šipki i cijevi) dosta često upotrebljava kao konstrukcijski materijal gdje se traži relativno mala masa, srednja mehanička svojstva i dobra otpornost vanjskim utjecajima. U ovom radu elektrokemijskim mjernim tehnikama određena je korozijska otpornost slitine EN AW-6060 (u ekstrudiranom stanju) u kloridnom mediju (0.5M NaCl). Rezultati ispitivanja pokazali su da je slitina EN AW-6060 sklona jamičastoj (pitting) koroziji, što je u vezi s karakerističnom mikrostrukturom slitine.The 6xxx series aluminium alloys are charactarised by excellent extrudability, heat treatment hardening, good corrosion resistance, and relativly good mechanical properties. Therefore it is frequently used as an extruded product (bars, tubes) for structures requiring low weight, average mechanical strength, and good corrosion resistance. In this article, electrochemical measurements were used to determine corrosion resistance of En AW-6060 (extruded) in 0.5M NaCl chloride media. The results have shown that EN AW-6060 is sucseptible to pitting corrosion, which is due to microstructural characteristics of that alloy
Kavka's Theory on Hobbesian State of Nature and of a Satisfactory State
No full textU okviru ovog rada autor raspravlja o reinterpretaciji političke teorije prirodnog stanja i društvenog ugovora engleskog filozofa Thomasa Hobbesa (1588.-1679.), dane u svjetlu hobsistički inspiriranog suvremenog američkog filozofa Gregorya S. Kavke. Radi se, dakle o problemu kako je država mogla društvenim ugovorom uopće nastati, ako su (i kad su) ugovori kao pravne institucije protivni naravi prirodnog stanja zato što je država sama objekt tog ugovora. Sljedeći problem odnosi se na mogućnost, odnosno nemogućnost postojanja morala u prirodnom stanju, u kojem je po Hobbesu sve dozvoljeno jer je nesankcionirano. Griješi li Hobbes kad tvrdi da u prirodnom stanju nema morala? Kavka to upravo dokazuje, polazeći od Hobbssove teorije prirodnog stanja, te dolazi do saznanja da je moral i izvan države i u tzv. prirodnom stanju moguć, potreban i prepoznatljiv. Autor je suglasan s Kavkom da Hobbesovu teoriju treba revidirati, pa želi li ova ostati aktualna i primjenjiva politička teorija, i Hobbesov se koncept prirodnog stanja mora mijenjati. Iako u prirodnom stanju nema potpunog moralnog kodeksa, tragovi etičkog se ipak moraju i ondje nazrijeti, jer su, s humanistilčkog gledišta, i moralitet i priroda izvan vremenitosti, a takvo je i prirodno stanje.In the frame of this paper the author analyses and discusses the
reintcrpretation of the seventeenth century English political
philosopher Thomas Hobbes (1588-1679) given by the contemporary
American philosophcr Gregory S. Kavka. The state of nature. the
social contract (pact) and forming the very first state and the
problem of complience to its new formed government are being
discussed. The question arises how is it possible at all to make the
social contract because it is still a „state of nature contract“, and in
these conditions contracts do not oblige while there is yet no one
to punish rebellion od disobedience. (Rather, the State should be a
result of that contract.) The other question concerns the possibility
of establishing morality in the state of nature, because no authority
is formed there and therefore moral code or positive law system are
nonexistent. The author claims (together with Kavka) thut in spite of
the fact that there exists no entire moral code, the possibility of
elementar traces of morality exists, because morality and nature
(from humanistic outlook) are timeless, as state of nature is, too
Polarimetry of the transient relativistic jet of GRB 110328/Swift J164449.3+573451
No full textWe present deep infrared (Ks-band) imaging polarimetry and radio (1.4- and 4.8-GHz) polarimetry of the enigmatic transient Swift J164449.3+573451. This source appears to be a short-lived jet phenomenon in a galaxy at redshift z= 0.354, activated by a sudden mass accretion on to the central massive black hole, possibly caused by the tidal disruption of a star. We aim to find evidence for this scenario through linear polarimetry, as linear polarization is a sensitive probe of jet physics, source geometry and the various mechanisms giving rise to the observed radiation. We find a formal Ks-band polarization measurement of Plin= 7.4 ± 3.5 per cent (including systematic errors). Our radio observations show continuing brightening of the source, which allows sensitive searches for linear polarization as a function of time. We find no evidence of linear polarization at radio wavelengths of 1.4 and 4.8 GHz at any epoch, with the most sensitive 3σ limits as deep as 2.1 per cent. These upper limits are in agreement with expectations from scenarios in which the radio emission is produced by the interaction of a relativistic jet with a dense circumsource medium. We further demonstrate how polarization properties can be used to derive properties of the jet in Swift J164449.3+573451, exploiting the similarities between this source and the afterglows of gamma-ray bursts
A Contribution to the Study of the Byzantine Mint in Salona - Follis from the Village of Gata near Omiš
No full textNedvojbeno je dokazano da je u vrijeme Justinjana I. u Saloni postojala kovnica novca, i to polufolisa i dekanumija. Prikazujemo pronađeni novčić – folis Justinijana I. i Justina I. iz 527. godine. Temeljem proučavanja toga novčića vjerujemo da je kovan u Saloni. Naime, svi
bizantski folisi toga vremena imaju na reversu veliko slovo M, iznad slova M križ, s lijeve i desne strane slova M izmjenjuju se šesterokraka zvijezda i križ u različitim kombinacijama. U sredini slova M često je oznaka kalupara, tj. sigla. Na svim folisima toga tipa ispod slova M u egzergu utisnuta je oznaka kovnice. To navodimo zato što primjerak koji prikazujemo nema u egzergu, tj. u donjem dijelu novčića, nikakvu oznaku kovnice. Ta okolnost upućuje nas na to da navedeni primjerak ne pripada niti jednoj poznatoj bizantskoj kovnici toga vremena pa je vrlo vjerojatno da je kovan u pokretnoj ratnoj kovnici u Saloni, kao što je nedvojbeno dokazano da su u Saloni u isto vrijeme kovani polufolisi i dekanumiji s oznakom K i I na reversu, a bez oznake kovnice.There is no doubt that there was a mint of half-folles and decanummi in Salona at the time of Justinian I. The find analysed here is a coin – a follis of Justinian I and Justin I from 527. On the basis of studying this coin, the author concludes that it was minted in Salona. All contemporaneous Byzantine folles have the large letter M with a cross above it on the reverse, flanked by a six-pointed star and a cross in different combinations. In the middle of the letter M there is often a die-caster’s mark, a siglum. All folles of this type have a mint mark in the exergue under the letter M. This is important, because the specimen described here has no mint mark in the exergue, i.e. in the bottom part of the coin. This indicates that it does not belong to any known Byzantine mint of that time so it was probably minted in the itinerant war mint in Salona, as has undoubtedly been proved for half-folles and decunummi with the marks K and I on the reverse, which were minted in Salona at the same time
Mostra dei briganti nelle opere di Alberto Fortis, Ivanladimir Ardalić
No full textAutor daje kratak pregled i osnovna obilježja hajdučije u zagorskoj Dalmaciji u 18. i 19. st. Mletačko-osmanlijski ratni sukobi u Dalmaciji završeni su 1718. godine. Tada je utvrđena nova, konačna granica među susjedima te započelo dugo razdoblje stabilnih odnosa, trgovine i suradnje. Međutim, odmetništvo se nastavilo intenzivno i dalje pa i
onda kad je mletačku vlast u Dalmaciji zamijenila francuska, a zatim ovu austrijska. Na hajduštvo u ovoj pokrajini osvrću se opat Alberto Fortis u svom djelu »Put po Dalmaciji« (Viaggio in Dalmazia), u poglavlju »O običajima Morlaka«, a zatim, reagirajući na Fortisovo djelo, mladi prosvjetitelj Sinjanin Ivan Lovrić u svojim »Bilješkama o Putu po Dalmaciji opata Alberta Fortisa i Život Stanislava Sočivice« 1776. godine. Vladimir Ardalić krajem 19. i početkom 20. st. u svojim tekstovima o životu i običajima u Bukovici ne piše posebno o hajducima, već mjestimice upliće kratka zapažanja o hajducima i
hajduštvu, sjećanja kakva su živjela u pučkoj usmenoj tradiciji toga vremena. U našem radu iznose se i komparativno analiziraju Fortisovi, Lovrićevi i Ardalićevi zapisi o hajducima, njihove misli o junaštvu hajdučkih odmetnika i o uzrocima hajduštva na ovim prostorima.The author gives a brief overview of the basic features of banditry in Dalmatian Zagora in the 18th and 19 century. The war-confl icts betweenVenetians and Ottoman ended in 1718.. That year marks the establishing of the fi nal border between the two states, and the beginning of a long period of stable relations, trade and cooperation.
However, intensive brigandry continuedeven after Venetian rule was replaced by the French, and the latter by the Austrian. Two eiighteenth-century atuhors offern account of brigandry (hajduštvO): the abbot Alberto Gortis in his Viaggio in Dalmazia, and his younger contemporary, an educator from Sinj Ivan Lovrić in his Travels of Alberto Fortis in Dalmazia and the Life of Stanislav Sočivica.The latter work is composed as critical evaluation of Fortis’ work, and published in 1776. In his studies composed in the late nineteenth and early twentieth century Vladimir Ardalic does not focus specifi cally on
brigands (hayduks). Instead he includes brief accounts of brigands and brigandry as part of oral memory in the region that he records. In this work we present and analyz Fortis, Lovrić and Ardalić’s records on brigands and their thoughts about the perceived heroism of brigands, and the causes of brigandry in this region.L’autore fornisce una breve panoramica e le caratteristiche fondamentali del brigantaggio nella retroterra di Dalmazia nel 18 e 19 secolo. I Confl itti di guerra veneto-turchi in Dalmazia sono stati completati nel 1718. Poi ha trovato un nuovo confi ne defi nitivo tra vicini di casa, e cominciò un lungo periodo di relazioni stabili,
commerciali e di cooperazione. Tuttavia, il ribellione è continuato intensamente anche quando il dominio veneziano in Dalmazia ha sostituito il francese e poi austriaco. Del brigantaggio in questa provincia parlano l’abate Alberto Fortis, nel suo “Viaggio in
Dalmazia” (Viaggio in Dalmazia), nel capitolo “Delle usanze di Morlacchi “ e poi, in risposta al lavoro di Fortis, un giovane educatore da Sinj Ivan Lovrić nelle sue “Note del Viaggio in Dalmazia di abate Alberto Fortis e Vita di Stanislav Sočivica “ nel 1776. Vladimir Ardalić, alla fi ne del 19 e all’ inizio del 20 secolo, nei suoi scritti della vita e dei costumi in Bukovica non scrivava appositamente dei briganti, ma brevemente interferisce con le osservazioni dei briganti e del brigantaggio, i ricordi che vivevano nella tradizione popolare orale del tempo. Nel nostro lavoro sono presentate e analizzate le note di Fortis, Lovrić e Ardalić dei briganti, i loro pensieri del l’eroismo dei ribelli briganteschi e le cause del brigantaggio in questa regione
Development of Augmented Reality Technology Implementation in a Shipbuilding Project Realization Process
No full textThe technology of Augmented Reality is taking on an increasingly important role in the digital (and green) transformation of industry, including shipbuilding. Upgraded to the three-dimensional ship model in the form and content of a Digital Twin, (industrial) Augmented Reality contributes to the activities of sale and marketing, development, and design, as well as production and maintenance. Recognizing its leading potential in creating the configuration of Shipyard 4.0, research on the further applicability of Augmented Reality in shipbuilding processes, with an emphasis on outfitting activities, was initiated in collaboration between industry and universities. This paper describes the course of the research, i.e., the development of an Augmented Reality application supportive of the shipbuilding process. The authors emphasize the possibility of achieving savings in shipbuilding project realization by implementing the Augmented Reality application according to the conducted proof of concept, thus contributing to shipbuilding system competitiveness improvement
Mimica musicale (e mimetica filosofica) in Th. W. Adorno
No full textnumero monografico: "Theodor W. Adorno (1903 - 2003) L'estetica. L'etica", a cura di Elio Matassi e Elena Tavani, Donzelli Editore, Roma 2005
Relazione svolta il 17 ottobre 2003 al ‘Goethe-Institute’di Roma, nell’ambito del Convegno Internazionale di Studi ‘Theodor W. Adorno 1903 -2003’, Roma 16-18 ottobre 2003In an imaginary dialogue with Adorno, the author faces the problem of the relationship between music and language. The thematic nucleus of Adorno’s essay Musik und Sprache is: inspite of the similarity with language music is not language. InthisessaythephilosophertriedtoapplythetheoriesofW.Benjaminonlanguage – with theological mark – to music. This attempt left many unsolved problems, considering the temporal character of music. These problems con be solved only by strictly following Benjamin’s point of view. However, according to the author, Adorno is capable of proposing in an authentic manner the problem of the possibility of translating music in something that is not music, but his theory has its flaws: to conceive music as a “perfect” or “edenic language”. To avoid the difficulties this theory may cause, the author proposes to conceive music as a vital attempt to attain an impossible perfection
Istraživanja o utjecaju semantičkog aspekta na razumijevanje rečenica
No full textIn this studyJhe author gives a survey of recent investigations on the effects of semantics on the understanding of sentences. This kind of investigation mainly relates to the period of childhood. In the process of understanding a sentence, besides syntax, semantics are also present, which influence the interpretation of the sentence and are very essential, especially during young formative years (from 2 to 4 years). Practically all quoted investigations agree that at the beginning of speech development, the strategy of de-coding semantic information for the understanding of the sentence is the main strategy which children use, regardless which language they speak. It is not until after 4 years of age (in some languages even later) that the role of the strategy of de-coding semantic information is taken over by other strategies, primarily the strategy of de-coding syntax (de-coding information of word order in the sentence; de-coding case-morphological information; de-coding information about accent in the sentence, etc.)U ovom radu autor daje pregled novijih istraživanja koja se bave utjecajem semantike na razumijevanje rečenica. Takva istraživanja se uglavnom odnose na dječju dob. U procesu razumijevanja rečenica osim sintakse prisutna je i semantika čiji je utjecaj na interpretaciju rečenica veoma značajan, naročito u mlađoj dječjoj dobi (od 2 do 4 godine). Gotovo sva navedena istraživanja se slažu u konstataciji da je u početku govornog razvoja strategija dekodiranja semantičke informacije pri razumijevanju rečenica glavna strategija kojom se djeca služe bez obzira kojim jezikom govore. Tek poslije 4. godine (u nekim jezicima i kasnije) ulogu strategije, dekodiranja semantičke informacije preuzimaju neke druge strategije, prvenstveno strategije dekodiranja sintakse (dekodiranje informacije o redoslijedu riječi u rečenici; dekodiranje padeško-morfološke informacije; dekodiranje informacije o naglasku u rečenici, itd.)
