| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font

Search the digital library catalog Help

Query: search in
search in
search in
search in
* old and bologna study programme

Options:
  Reset


1 - 10 / 39
First pagePrevious page1234Next pageLast page
1.
2.
UPORABA PCA METODE PRI VREDNOTENJU VPLIVA POLOŽAJA PLODOV V KROŠNJI NA LASTNOSTI PRIDELKA PLODOV RAZLIČNIH SORT JABLAN (Malus domestica B.)
Biljana Todorović, 2011, master's thesis

Abstract: Uporaba PCA metode pri vrednotenju vpliva položaja plodov v krošnji na lastnosti pridelka plodov različnih sort jablan (Malus domestica B.) UDK: 634.11:519.87: 631.524. 7(043)=863 V Sadjarskem centru Maribor (Gačnik) in na posestvu UKC Pohorski dvor je bila v letu 2009 izvedena raziskava z namenom ovrednotiti vpliv položaja ploda v krošnji na nekatere parametre zrelosti in kakovosti pridelka jablan sort ′Gala′, ′Elstar′, ′Jonagold′, ′Braeburn′ in ′Fuji′. Sončni položaj je bil definiran kot položaj na obodu krošnje, polsenčni položaj med obodom krošnje in deblom in senčni položaj tik ob deblu. Za obdelavo podatkov sta bili uporabljeni PCA analiza in ANOVA. Skupna PCA analiza podatkov vseh petih sort jablan je pokazala močan vpliv položaja ploda v krošnji na testirane parametre zrelosti in kakovosti plodov (pojasnjeno 61 % variance). Pri vseh petih sortah je imel položaj ploda v krošnji signifikanten vpliv na intenzivnost obarvanosti povrhnjice, vsebnost topne suhe snovi in povprečno maso plodov, tako da so bili plodovi na sončnem položaju bolje obarvani, slajši in so dosegli večjo povprečno maso. Pri sortah 'Elstar' in 'Braeburn' so bili na sončnem položaju plodovi tudi trši in zrelejši. Pri sorti 'Fuji' je bila zrelost plodov najmanj odvisna od njihovega položaja v krošnji.
Keywords: jablana, PCA metoda, položaj plodov, kakovost, zrelost
Published: 29.06.2011; Views: 2236; Downloads: 175
.pdf Full text (689,37 KB)

3.
4.
ODLOČITVENI MODEL ZA IZBIRO SPLETNE TRGOVINE ZA MALA PODJETJA
Slaviša Todorović, 2009, undergraduate thesis

Abstract: Diplomska naloga pojasnjuje, kako lahko z odločitvenim modelom in organizirano skupino pravilno izberemo spletno trgovino. V nalogi obravnavamo problem izbire primernega modela spletne trgovine. V ta namen smo zgradili odločitveni model v računalniškem programu za podporo večparametrskemu odločanju DEXi. Najprej se spoznamo z modeli spletnih trgovin, kakšne so prednosti in slabosti posameznih modelov spletne trgovine. Predstavimo tri znane modele spletnih trgovin, ki so brezplačne za uporabo. Na osnovi izbranih kriterijev, razvrščenih v hierarhično strukturo in funkcij koristnosti, smo izbrane tri variante ocenili in izmed treh modelov izbrali najbolj primernega.V našem primeru je najprimernejši model spletne trgovine VirtueMart, ki je komponenta sistema Joomla, ki tudi omogoča postavitev spletne strani oz. predstavitev podjetja.
Keywords: Spletna trgovina, Odločitveni model, Dexi, OsCommerce, FreeWebShop, VirtueMart
Published: 21.10.2009; Views: 1780; Downloads: 233
.pdf Full text (355,96 KB)

5.
VPLIV VONJAV NA VEDENJE KUPCEV
Mirjana Todorović, 2012, undergraduate thesis

Abstract: Teoretično sestavljeno diplomsko delo obravnava področje marketinga doživetij ter se osredotoča na vonjave in njihov vpliv na vedenje kupca. Prvi del diplomskega dela je namenjen pregledu marketinga doživetij, pri čemer izpostavljamo predvsem hedonistične potrebe kupca ter medsebojno povezano vlogo atmosfere in doživetij. Nadaljujemo s kratkim pregledom vedenja kupca. V četrtem poglavju opredeljujemo vlogo vonjav v življenju posameznika, predstavimo osnovne pojme, povezane z vonjavami, ter podrobneje opišemo izredno pomemben proces zaznavanja. Podajamo tudi osnovno delitev vonjav ter predstavimo nekatere pomembnejše učinke. Drugi del naloge je namenjen predstavitvi vpliva vonjav na vedenje kupcev. Izpostavimo vpliv vonjav na priklic spominov, razpoloženje in procesiranje informacij ter oblikovanje ocen. Podajano primere iz prakse in predstavimo etične zadržke pri uporabi vonjav kot sredstvo za vplivanje na kupca. V sklopu diplomskega dela proučimo in predstavimo rezultate nekaterih pomembnejših raziskav s tega področja. Najpomembnejše ugotovitve so, da lahko skrbno izbrane in primerno implementirane vonjave pozitivno vplivajo na kupca, njegovo razpoloženje, obujanje spominov, zaznave okolja in izdelka ter podajanje nekaterih ocen. Na podlagi ugotovitev podajamo smernice in priporočila za uporabo vonjav v prodajalnah na slovenskem trgu.
Keywords: Vedenje kupca, marketing doživetij, prodajno okolje, atmosfera prodajalne, vonjave, vonj, voh.
Published: 02.07.2012; Views: 1243; Downloads: 141
.pdf Full text (1,09 MB)

6.
7.
8.
Nanofoils for soldering and brazing in dental joining practice and jewellery manufacturing
Karlo Raić, Rebeka Rudolf, Borut Kosec, Ivan Anžel, Vojkan Lazić, Aleksandar Todorović, 2009, original scientific article

Abstract: This paper describes the development of novel, reactive Al-Au nano-multilayered foils, their possible application in different fields and a discussion of the nano-foils' suitability for dental and jewellery applications. Moreover, this study includes the rapid joining of similar and dissimilar materials, by placing multilayer nano-foils and two layers of solder or braze. The foils precisely control the instantaneous release of heatenergy for the joining and act as a controllable local heat source. The reactive foils' thickness is in the range 10 nm to less than 100 nm and they contain many nanoscale layers that alternate between materials with high mixing heats, such as Al and Au. The foil between the two solder/braze layers melts the solder/braze with the heat generated by the reaction and bonds the components. The use of reactive foils eliminates the need for a furnace and dramatically increases the soldering/brazing heating rate of the components being bonded. Thus, ceramics and metals can be fused over required areas without the thermal stresses that are encountered in furnace soldering or brazing. In addition, a completely new plasma technology is proposed for the manufacturing of nano-foils and the first results of the preliminary experimental testing are presented.
Keywords: ceramic-metal bonding, low-temperature, nano-foils, plasma technology, dentistry, jewellery
Published: 01.06.2012; Views: 1274; Downloads: 42
.pdf Full text (175,31 KB)
This document has many files! More...

9.
In-vitro evaluation of the retention of different prefabricated posts luted with different cements
Miloš Maksimović, Aleksandra Špadijer Gostović, Aleksandar Todorović, Nebojša Romčević, Rebeka Rudolf, Ana Todorović, 2012, original scientific article

Abstract: The aim of this study was to assess and compare the mechanical resistance and the retentive force of metal and composite post systems cemented with different types of cements. Three different designs of prefabricated titanium alloy posts were used in the study, i.e., active, passive and combined, as well as AgPd cast posts and two different fibre-reinforced composite post systems. In accordance with the experimental design these posts were cemented with zinc phosphate, self-curing composite resin or self-adhesive, self-etching, luting agent. Comparing the results between the different metal post designs, cemented with zinc phosphate, a statistically significant difference in the retention was found between all the analysed posts. The best results with the pull-out test were obtained with the active posts, then the passive, followed by the combined posts. The metal cast posts cemented conventionally with Zn-phosphate demonstrated the lowest retentive force value, based on all the measurements. The bond strengths between the post and the root dentine were influenced statistically by the post design (active, passive, combined or cast) and material, metal vs. composite. The active Ti posts showed significantly superior retention in combination with all the cements. The Ti alloy posts achieved higher retentive force values than the composite posts, in general. The composite cements compared to the Zn-phosphate ensure a better retentive strength for all the posts, including individually cast posts.
Keywords: retention, prefabricated titanium posts, fibre-reinforced composite posts, cements, pull-out testing
Published: 10.07.2015; Views: 410; Downloads: 46
.pdf Full text (521,81 KB)
This document has many files! More...

10.
Liquid metal/ceramic interfaces in dental practice and jewellery manufacturing
Karlo Raić, Rebeka Rudolf, Aleksandar Todorović, Dragoslav Stamenković, Ivan Anžel, 2010, review article

Abstract: Metal-ceramic fusing has been the essential step in obtaining materials that benefit from both ceramic and metal constituents, i.e. where the combined properties of metal and ceramic layers are desirable. When considering fusing methods, soldering and active metal brazing are the most effective. These processes involve braze melting and flowing between the two pieces of material. In the first part the phenomena occurring on the boundary between the ceramics and the active filler metal during the metal-ceramics joining are discussed. Three interconnected sub-processes are considered: (1) wetting of the ceramic surface, (2) chemical reactions at the interface and (3) diffusion with a moving interface. Then, the appearances at the grain boundary grooves of the ceramic surface are presented as phenomena on the catalytic surface. In the second part, examples from dental practice and jewellery manufacturing are used for comparative analysis. Finally, we discuss the composition and properties of the soldering and brazing alloys used for dental practice and jewellery manufacturing.
Keywords: metal-ceramic bonding, brazing, soldering, dentistry, jewellery
Published: 10.07.2015; Views: 572; Downloads: 47
.pdf Full text (479,04 KB)
This document has many files! More...

Search done in 0.16 sec.
Back to top
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica