Developing a Typology of Hostel Visitors Using the Bagged Clustering Approach

This article is the first study to present a nuanced analysis of hostel visitors. Using the bagged clustering approach, a typology of hostel visitors was developed, involving four distinctive types of hostel visitors: (i) Hostel lovers, (ii) Landing point visitors, (iii) Flashpackers look-alikes, and (iv) Classical backpackers

Internacionalizacija poslovanja malih i srednjih poduzeća

Highly developed countries, which are similar to Croatia by size and population, highlight the importance of small and medium-sized enterprises (SMEs) as holders of export activities and key factors in raising the competitiveness of the entire economy. In this paper authors research the concept of internationalization of SMEs. Analyzing the influence of decision makers on the process of internationalization and showing its advantages and disadvantages for the respective company and country, this research introduces the most common models on the basis of which this process is implemented in practice. A case study of a small export company from Croatia illustrates the process of internationalization to the U.S. market and provides useful information to the companies which are planning to enter new markets.Razvijene zemlje, koje su površinom i brojem stanovnika slične Hrvatskoj, upućuju na važnost prepoznavanja sektora malih i srednjih poduzeća kao nositelja izvoznih aktivnosti i ključnog čimbenika podizanja konkurentnosti cjelokupnog gospodarstva. U ovom istraživačkom radu autori razrađuju koncept internacionalizacije poslovanja malih i srednjih poduzeća. Prikazuju se prednosti i nedostaci internacionalizacije poslovanja za poduzeća i državu, analiziraju najčešći modeli na osnovi kojih se proces provodi u praksi te pojašnjava utjecaj donositelja odluka na proces internacionalizacije malih i srednjih poduzeća. Studija slučaja malog izvoznog poduzeća iz Hrvatske pokazuje kako se odvijao proces internacionalizacije poslovanja na tržištu SAD-a i pruža korisne informacije poduzećima koja razmišljaju o izlasku na nova tržišta

Notebooks from Bor

Povodom 150 godina od osnivanja prve čitaonice u okviru matičnosti Narodne biblioteke Bor, u Zlotu 1869, biblioteka je objavila novo izdanje "Borske beležnice" Mikloša Radnotija, mađarskog pesnika koji je svoje poslednje pesme napisao tokom prinudnog rada u nacističkim radnim logorima u Boru i okolini. "Borska beležnica" u prevodu Danila Kiša, zajedno sa stripom koji je nacrtao i napisao Aleksandar Zograf i tekstom o ovoj zbirci pesama čiji je autor prof. dr Zoran Paunović inspirisanim je pesnikovom tragičnom sudbinom. Radnotijeva "Borska beležnica" u Kišovom prevodu i sa predgovorom Aleksandra Tišme bila je prvo izdanje Narodne biblioteke Bor, objavljeno 1979. godine.On the occasion of the 150th anniversary of the founding of the first reading room within the National Library Bor, in Zlot in 1869, the library published a new edition of the "Notebook from Bor" by Miklos Radnoti, a Hungarian poet who wrote his last poems during forced labour in the Nazi labour camps in Bor and its surroundings. "Notebook from Bor" translated by Danilo Kish, together with a strip book drawn and written by Aleksandar Zograf and a text about this collection of poems authored by Prof. Dr. Zoran Paunović was inspired by the poet's tragic fate. Radnotije's "Notebook from Bor" in Kiš's translation and with a foreword by Alexander Tišma was the first edition of the National Library of Bor, published in 1979.Ovo izdanje pripremljeno je na osnovu Radnotijeve "Borske beležnice" objavljivane u izdanjima: Strmom stazom, Forum, Novi Sad, 1961; Borska beležnica, Narodna biblioteka Bor, Bor 1979; Tolnai Gabor, Zadnja deonica „Strme staze”, Bor 1984; digitalizovanog originalnog rukopisa, koji se čuva u Legatu Mikloša Radnotija u Biblioteci Mađarske akademije nauka (http://radnoti.mtak.hu/hu/04-01.htm). Prilog Aleksandra Zografa "O Borskoj beležnici", pripreman za ovo izdanje, objavljivan je tokom decembra 2018. u nedeljniku Vreme i u katalogu Emanuelea Mašonija Il Taccuino di Bor, Accademia d’Ungheria in Roma, 2019. Na koricima je njegovo tipografsko rešenje u kombinaciji sa praznom stranicom iz originalnog notesa „Avala 5”.Sadržaj: O Borskoj beležnici / Aleksandar Zograf. Borska beležnica / Mikloš Radnoti ; s mađarskog preveo Danilo Kiš. Borska beležnica Mikloša Radnotija : hronika najavljene smrtI / Zoran Paunović

Electrical properties of doped BaTiO3 Ceramics

The electrical resistivity and PTCR (Positive Temperature Coefficient of Resistivity) effect doped BaTiO3 ceramics with different dopant were investigated in this paper, The content of additive in doped samples were ranged from 0.01 to 1.0 at% Er/Yb. The samples were prepared by a conventional solid state sintering procedure and sintered at 1320 °C for 4 hours. For samples doped with Er2O3 (0.01 at% Er/Yb), SEM analysis shows abnormal grain growth with the average size range between 20 μm - 40 μm. For samples doped with Yb2O3 the average size was from 30 μm - 50 μm. With increase of dopants concentration the average grain size decreases, and for samples doped with 1.0 at% Er/Yb, grain size range between 3 μm - 20 μm for samples doped with Er and between 1 μm - 10 μm for samples doped with Yb2O3. The specific electrical resistance were measured in temperature range from 25 °C to 170°C at different frequencies, ranged from 100Hz to 1MHz. To a temperature of 120 °C, resistance has a slight increase with increasing of temperature, but above this temperature the resistance rapidly increasing. The value of the specific electrical resistance decreases with increasing concentration of Er/Yb, reached the minimum at certain dopant content (0.5 at% Er/Yb), then increased rapidly with dopant content in high doping level

Characterization of ptc effect in batio(3)-ceramics as a special phase transition - fractal approach

The applications of BaTiO3-ceramics are very important and constantly increasing nowadays. In that sense, we analyzed some phenomena related to inter granular effects. We used experimental data based on Murata powders and processing technology. Our original contribution to Heywang-Jonker-Daniels inter-granular capacity model is based on thermodynamic fractal analysis applied on phase transition in ceramic structures. In this case, PTCR effect has a diffuse first-order phase transition character in a modified Landau theory-fractal approach. Its basic properties are considered. This is an original contribution as a bridge between theoretical aspects of BaTiO3-ceramics and experimental results

Generalized Lorentz model description of electrical, dielectric, conductive and magnetic processes two-time relaxations in BaTiO3 ceramics with constitutive relations

In this study, generalized Lorentz model is considered in the framework of dielectric, conductive and/or magnetic responses of materials. Beside positive temperature coefficient of resistivity (PTCR) materials (current stabilizers, time delay circuits and current limiters for overvoltage or overcurrent protection, temperature sensors, self-heating, …), magnetic properties indicate to multifunctional or specific applications (for example, nanocubic technologies). AC conductivity studies of various BaTiO3 ceramics or similar ceramics produced equivalent circuits with impedance spectra, usually within the framework of RCPE elements serial connection (CPE - constant phase element) or Cole element. One of the first models that explains PTC effect is the Heywang model, in terms of grain boundaries potential barriers of the Shottky type. Dielectric frequency spectra can be described in similar relationships. However, magnetic features of BaTiO3 ceramics are not well described. In this presentation all three behaviors (dielectric, conductive and magnetic) of materials and their relationships are considered in the case of electric or magnetic alternate fields, which are the basis for experimental measurements

CHARACTERIZATION OF PTC EFFECT IN BATIO3-CERAMICS AS A SPECIAL PHASE TRANSITION – FRACTAL APPROACH

The applications of BaTiO3-ceramics are very important and constantly increasing nowadays. In that sense, we analyzed some phenomena related to inter-granular effects. We used experimental data based on Murata powders and processing technology. Our original contribution to Heywang-Jonker-Daniels inter-granular capacity model is based on thermodynamic fractal analysis applied on phase transition in ceramic structures. In this case, PTCR effect has a diffuse first-order phase transition character in a modified Landau theory-fractal approach. Its basic properties are considered. This is an original contribution as a bridge between theoretical aspects of BaTiO3-ceramics and experimental results

Generalized Lorentz model description-Caputo-Fabrizio fractional derivative approach, of electrical, dielectric, conductive and magnetic processes in materials

In this study, generalized Lorentz model is basic one-particle model in the framework of dielectric, conductive and/or magnetic responses of materials. AC conductivity studies of various BaTiO3 or similar ceramics produced equivalent circuits with impedance spectra, usually within the framework of RCPE elements serial connection (CPE - constant phase element) or Cole element. This element, in the generalized Lorentz model, corresponds to Caputo fractional derivative, who, as operator, contains a singular integral kernel in itself. However, in the literature, fractional derivatives with a non singular integral kernels have recently emerged. One of them is a Caputo-Fabrizio fractional derivative. In this work, physical basics and all three behaviors (dielectric, conductive and magnetic) of materials and their relationships are considered in the case of electric or magnetic alternate fields, which are the tools for experimental measurements

Fractal nature Heywang model contribution and BaTiO3-ceramics semiconducting phenomena

Well known material with ferroelectric properties, BaTiO3-ceramics, have many advanced applications. Fractal approach in analyzing of these structures can be one of the solution for investigation of morphology. It is known that a wide range of disordered systems can be characterized by the fractal nature over a microscopic correlation length, and on a small scale the energy transformations are permitted. Due to the lack of energy, priorities of the future frontiers in ceramics science is to expand the knowledge even down to nano and towards new and alternative energy sources. Fractal configuration nature of BaTiO3 and other ceramics is based on phenomena that ceramic grains have fractal shape; there are pores and inter-granular space and there is particles Brownian fractal motion inside the material, during and after sintering, in the form of micro-particles flow, which is the most important. These important facts are in function of further developing of knowledge of energy harvesting and storage