459 research outputs found
Hemp´s potential implication as a sustainable material in building and construction business
No full textV diplomskem delu je predstavljena analiza uporabe industrijske konoplje kot trajnostnega gradbenega materiala. Cilj naloge je bil raziskati potencial konoplje v gradbeništvu, oceniti njene okoljske in ekonomske učinke ter analizirati njeno konkurenčnost v primerjavi s konvencionalnimi materiali. Poleg tega je bil namen tudi ovrednotiti, kako lahko konoplja prispeva k doseganju trajnostnih ciljev in prehodu v krožno gospodarstvo.
V prvem delu naloge smo predstavili industrijsko konopljo kot rastlino, njene značilnosti in prednosti za uporabo v gradbeništvu. Konoplja je zaradi svoje hitre rasti, nizkih zahtev po pesticidih in izjemne sposobnosti zajemanja ogljikovega dioksida prepoznana, kot eden izmed najperspektivnejših materialov za trajnostno gradnjo. Posebna pozornost je bila namenjena konopljinemu betonu, ki se uporablja kot izolacijski in strukturni material. Njegove lastnosti, kot so dobra toplotna in zvočna izolacija, odpornost na ogenj in plesen, ter nizka gostota, so lastnosti ki vplivajo, da je energetsko učinkovit material, kar pomeni da pripomore k zmanjšanju porabe energije pri njegovi uporabi, ne da bi pri tem ogrožal delovanje ali udobje. Tak material ponuja visoko zmogljivost v kontekstu izolacije, bodisi toplotne bodisi zvočne.
V primerjavi z drugimi zelenimi materiali, kot so slama, les in glina, konoplja izstopa po svoji izjemni vsestranskosti, obnovljivosti in ekoloških prednostih, zlasti pri izboljševanju kakovosti tal, na katerih raste. Kljub tem nedvomnim prednostim pa se sooča z izzivi, kot so zakonodajne omejitve in omejena dostopnost na trgu, kar zavira njeno širšo uporabo. V nadaljevanju smo analizirali primere uporabe konopljinega betona, kjer se je izkazalo, da ta material pomembno prispeva k zmanjšanju okoljskih obremenitev, izboljšanju bivalnega udobja ter podaljšanju življenjske dobe stavb. Kljub spodbudnim rezultatom pa je jasno, da so potrebne nadaljnje raziskave, predvsem na področju dolgotrajne obstojnosti in ekonomske upravičenosti uporabe konopljinega betona.
Sklep naloge potrjuje, da ima industrijska konoplja velik potencial za trajnostni razvoj gradbeništva, vendar je za njeno širšo implementacijo potrebno preseči regulativne ovire in povečati ozaveščenost o njenih prednostih. Konoplja ima edinstveno priložnost, da postane ključni material v prehodu k trajnostni gradnji, vendar bo to mogoče le z nadaljnjimi raziskavami in inovacijami.This thesis presents an analysis of the use of industrial hemp as a sustainable building material. The aim of the thesis was to explore the potential of hemp in construction, to assess its environmental and economic impacts and to analyse its competitiveness compared to conventional materials. In addition, the aim was to evaluate how hemp can contribute to achieving sustainability goals and the transition towards a circular economy.
In the first part of the thesis, we presented industrial hemp as a plant, its characteristics and its advantages for use in the construction industry. Hemp is recognised as one of the most promising materials for sustainable construction due to its fast growth, low pesticide requirements and exceptional carbon sequestration capacity. Particular attention has been paid to hempcrete, which is used as an insulating and structural material. Its properties such as good thermal and acoustic insulation, resistance to fire and mould, and low density, are characteristics that make it an energy efficient material, meaning that it helps to reduce energy consumption in its use without compromising performance or comfort. Such material offers high performance in the context of insulation, either thermal or acoustic.
Compared to other green materials such as straw, wood and clay, hemp stands out for its exceptional versatility, its renewability and its ecological advantages, particularly in improving the quality of the soil on which it grows. Despite these undoubted advantages, it faces challenges such as regulatory constraints and limited market availability, which inhibit its wider use. In the following, we analyse examples of the use of hempcrete where it has been shown to make a significant contribution to reducing environmental burdens, improving living comfort and extending the lifetime of buildings. Despite the encouraging results, it is clear that further research is needed, especially in the area of long-term durability and economic viability of hempcrete.
The conclusion of the thesis confirms that industrial hemp has a great potential for sustainable development of the construction industry, but that its wider implementation requires overcoming regulatory barriers and raising awareness of its benefits. Hemp has a unique opportunity to become a key material in the transition towards sustainable construction, but this will only be possible with further research and innovation
Un classicista barocco e il suo pubblico: Ottavio Ferrari (1607-1682) tra umanesimo e antiquaria
No full textKnowledge of first aid in laic population regards to epileptic seizure
No full textTeoretična izhodišča: Epilepsija je skupno ime za nevrološke bolezni, katerih značilnost so ponavljajoči se epileptični napadi. Poznamo številne podvrste epilepsije, ki jim je skupno le nenormalno sočasno proženje živčnih celic (Kržan, 2013, str. 4). Epileptični napadi se med seboj po znakih in simptomih zelo razlikujejo. Epileptična aktivnost v napadih lahko povzroči spremembe občutkov, zavedanja ali vedenja, povzroči nehotene gibe ali okrne motorične funkcije. Napadi so lahko očitni, z nenadnimi krčevitimi kontrakcijami mišic in z nezavestjo. Lahko pa so napadi navzven neopazni (Lorber, 2012, str. 30).
Metodologija raziskovanja: V diplomskem delu smo uporabili deskriptivno (opisno) metodo dela. Uporabili smo tudi kvantitativno metodo dela, izvedli anketo s pomočjo spletnega vprašalnika EnKlikAnketa, ki je bila anonimna. Sestavljena je bila iz 15 vprašanj, na anketo je odgovorilo 100 ljudi.
Rezultati: Laična populacija pozna pojem epileptični napad, veliko se jih je že srečalo z epileptičnim napadom, poznajo tudi nekatere vzroke za epilepsijo. Kljub poznavanju pojma, pa laična populacija v večini ne bi znala nuditi pravilne prve pomoči ob epileptičnem napadu. Sicer poznajo nekaj osnovnih ukrepov, vendar bi nekateri bolniku lahko celo škodili zaradi napačnega ukrepanja.
Sklep: Laična populacija bi potrebovala več izobraževanja o prvi pomoči ob epileptičnem napadu, morda tudi o splošni prvi pomoči. Viri navajajo, da naj bi 1 % ljudi na svetu imel epilepsijo. Glede na te statistične podatke je razmeroma malo laikov dobro pripravljenih oziroma poučenih, da bi se v takšni situaciji dobro odrezali.Theoretical background. Epilepsy is a common name for neurological diseases, whose properties are recurring seizures. There\u27s a number of sub-types of epilepsy, which have in common only the abnormal simultaneous actuation of the nerve cells (Kržan 2013, p. 4). Seizures differ among themselves by signs and symptoms . Epileptic activity in attacks can cause changes in sensation, awareness or behavior, causes involuntary movements or impaired motor functions. The attacks can be obvious, with sudden spasmodic contractions of the muscles and unconsciousness. But the attacks may also not be apparent (Lorber 2012, p. 30).
Research Methodology. In this diploma paper we used descriptive (descriptive) method of working. We also used a quantitative method of working, we carried out a survey via an online questionnaire EnKlikAnketa, which was anonymous. It consisted of 15 questions, on the survey responded 100 people.
Results. Laic population is familiar with the concept of epileptic seizures, many of them already met with epileptic seizures, they are also familiar with some of the causes for epilepsy. Despite the knowledge of concept, however secular population in the majority would not be able to provide proper first aid for seizure. Otherwise they are familiar with a few basic actions, although some may even harm the patient due to wrong action.
Conclusion: Laic population would need more education on first aid in epileptic seizure, maybe even about the general first aid. Sources indicate that 1% of people in the world have epilepsy. According to these statistical data there are relatively few people well prepared and trained to perform well in that kind of situation
Compendio di Medicina Nucleare
No full textIl compendio di Medicina Nucleare si propone di offrire agli studenti del Corso di laurea in Medicina e Chirurgia e del Corso di Laurea in Tecniche di Radiologia Medica, nonchè agli specializzandi nell'ambito della Facoltà di Medicina e Chirurgia, con particolare riguardo ai corsi di specializzazione dell'Area Radiologica, un testo sintetico sui principi generali delle metodiche medico-nucleari e delle loro principali applicazioni cliniche. E' stato dato uno spazio consistente nei capitoli introduttivi alla descrizione delle apparecchiature e dei radiofarmaci, mentre per quanto riguarda le diverse metodiche e le loro applicazioni cliniche si è cercato di limitare la trattazione a quelle che hanno attualmente un'ampia utilizzazione. Oltre alle metodiche della medicina nucleare convenzionale, scintigrafie e tomoscintigrafie (SPECT), è stata rivolta particoalre attenzione alle più recenti metodiche della PET e della PET-TC e al loro ruolo nella stadiazione delle neoplasie, nella valutazione dell'efficacia delle terapie e nella valutazione di ripresa della malattia neoplastica. Il testo è completato da un'ampia iconografia che contribuicse a rendere più compensibile il contenuto
Radon emanation and exhalation rates from soils measured with an electrostatic collector
No full textSite selection and fidelity by crested porcupines for denning
No full textThe crested porcupine is a large rodent living in Central and North Africa, with a European distribution limited to Italy. Its biology and particularly its denning habits are inadequately known. Our study was carried out in a Mediterranean coastal area of central Italy. We radiotagged 13 adult porcupines, assessing their den site selection and use each month, from February 1998 to September 1999. Porcupines preferred steep, compact soils covered with dense vegetation, for denning. Each den was always used by the same 2 individuals, possibly forming a reproductive pair. Paired individuals seemed to show a greater site fidelitythan single ones. Intepretations of this behaviour are discussed
Parametric and Sensitivity Analyses to Support Decision Making Tasks in Fuel Cell Hybrid Vehicle Design
No full textNowadays, the need to focus on clean and eco-sustainable mobility is increasingly felt, also considering the more stringent regulations in favor of the ecological transition. A viable solution that is being consolidated is vehicle hybridization. Among different hybrid technologies, a promising one is the fuel cell hybrid electric vehicle (FCHV), particularly because this solution is based on hydrogen, a resource foreseen in all the future policies about environmental sustainability. However, FCHVs are still not widespread, mainly due to high costs; thus, their performance enhancing and design optimization are strategic goals to be pursued so as to make them more competitive. This paper presents and discusses the optimization of several FCHV design and control parameters, such as fuel cell system power, battery specific energy, power to weight ratio and final battery state of charge target. Hierarchical modeling approach was applied, so as to derive, in a cascading manner, fast model-based tools from a comprehensive FCHV simulator. The resulting procedure allows immediately singling out the best values for each analyzed variable, along with its influence on the fuel economy. The latter point was particularly deepened, by carrying-out model-based sensitivity analyses to accurately quantify, for a known vehicle configuration, the impact of each variable percentage change in terms of fuel economy. More specifically, a map-based method has been proposed to compare paired design and control variables influence on fuel economy to obtain a performance-based ranking of analyzed variables. The results discussion underlines the effectiveness of the proposed tool in providing a solid support in the preliminary design and upgrading tasks (e.g., adaptation to most representative driving habits and/or to specific region-dependent traffic conditions) of FCHV lay-out, especially when aiming at maximizing fuel economy
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