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31.
Editorial
Ludvik Trauner, 2005, predgovor, spremna beseda

Ključne besede: editorials, scientific journals, geomechanics, geotechnical engineering
Objavljeno: 15.05.2018; Ogledov: 50; Prenosov: 0
.pdf Celotno besedilo (39,39 KB)
Gradivo ima več datotek! Več...

32.
Back analysis of time-dependet displacement at the Trojane tunnel construction
Jakob Likar, 2004, izvirni znanstveni članek

Opis: The 2,900-metre double tube tunnel of Trojane forms part of the highway section between Celje and Ljubljana and part of the highway road system connecting Lendava and Koper with adjacent roads. The construction of this section, which is of special importance for the Republic Slovenia, has been going on for almost ten years. The highway near Trojane where the tunnel is located, lies on a hilly terrain composed of Permian-carboniferous rocks, which are tectonically badly damaged in some places and marked with broad fault zones, containing tectonically remoulded soil of low strength in terms of deformability properties. Even though the amount of waters coming from the hills during the excavation of the tunnel was relatively small, this water, in combination with extremely damaged weak rock caused the increase of deformations at the construction site. Geological and geotechnical surveying with geometric monitoring and the analyses of stress and deformation changes in the surrounding rocks and support elements were critical in assessing the actual weak-rock conditions during the course of construction. Since the analyses of deformation processes, which had been modelled with PLAXIS 3D TUNNEL PROGRAM, showed great impact on permanent stability of the tunnel, special care was paid to rheological changes in the surrounding rocks and combined in-built support elements. 3D back analyses with SOFT-SOIL-CREEP (SSC) constitutive model, which takes into account rheological phenomena, were carried out. The calculations of primary and secondary stresses and deformations were made for two characteristic areas and determined on the basis of realistic geological mapping during tunnel construction. The first area represented typical rocks of the Trojane tunnel, i.e. shales and siltstone, while the second one was a tectonic zone where geological and geotechnical conditions during excavation were less favourable. The results of back analyses used provided an acceptable possibility for estimating the stress-strain variation during construction as well as an appropriate basis for analysing vertical displacements at the tunnel roof. The calculation results show good correlation with field measurements.
Ključne besede: tunnels, construction, permain-carboniferous rocks, geological-geotechnical conditions, tunnel support, Trojane tunnel, finite element method, costitutive models, back analyses, field mesurement, time dependent analysis
Objavljeno: 15.05.2018; Ogledov: 34; Prenosov: 1
.pdf Celotno besedilo (868,88 KB)

33.
Radon anomalies in soil gas caused by seismic activity
Boris Zmazek, Mladen Živčić, Ljupčo Todorovski, Sašo Džeroski, Janja Vaupotič, Ivan Kobal, 2004, izvirni znanstveni članek

Opis: At the Orlica fault in the Krško basin, combined barasol detectors were buried in six boreholes, two along the fault itself and four on either side of it, to measure and record radon activity, temperature and pressure in soil gas every 60 minutes for four years. Data collected have been analysed in a manner aimed at distinguishing radon anomalies resulting from environmental parameters (air and soil temperature, barometric pressure, rainfall) from those caused solely by seismic events. The following approaches have been used to identify anomalies: (i) ± 2σ deviation of radon concentration from the seasonal average, (ii) correlation between time gradients of radon concentration and barometric pressure, and (iii) prediction with regression trees within a machine learning program. In this paper results obtained with regression trees are presented. A model has been built in which the program was taught to predict radon concentration from the data collected during the seismically inactive periods when radon is presumably influenced only by environmental parameters. A correlation coefficient of 0.83 between measured and predicted values was obtained. Then, the whole data time series was included and a significantly lowered correlation was observed during the seismically active periods. This reduced correlation is thus an indicator of seismic effect.
Ključne besede: radon in soil gas, environmental parameters, earthquakes, correlation, regression trees, forecasting
Objavljeno: 15.05.2018; Ogledov: 30; Prenosov: 0
.pdf Celotno besedilo (271,01 KB)

34.
Undrained shear strength of saturated cohesive soils depending on consolidation pressure and mineralogical properties
Bojana Dolinar, 2004, izvirni znanstveni članek

Opis: The relationship between the water content and the undrained shear strength of finely grained soils can be described with a nonlinear function in which the type of soils is determined by two parameters. These parameters depend primarily on the size of clay minerals, their quantity in soil composition and the interlayer water quantity in expanding clay minerals. This article asserts that there exists also the exactly defined relationship also between the water content and consolidation pressure. In the function describing this relationship, the type of soil is determined by two parameters. They can be expressed depending on the same mineralogical properties of soils as the values of parameters in the function showing the relationship between the water content and the undrained shear strength. These findings allow us to express the ratio between undrained shear strength and consolidation pressure depending on mineralogical properties of soils.
Ključne besede: soil mechanics, properties of soils, clays, specific surface, undrained shear strenght, compressibility
Objavljeno: 15.05.2018; Ogledov: 29; Prenosov: 0
.pdf Celotno besedilo (103,26 KB)

35.
Introduction
Ludvik Trauner, 2004, predgovor, spremna beseda

Ključne besede: editorials, scientific journals, geomechanics, geotechnical engineering
Objavljeno: 15.05.2018; Ogledov: 17; Prenosov: 0
.pdf Celotno besedilo (51,03 KB)
Gradivo ima več datotek! Več...

36.
Pojmovanje vzgoje v slovenski duhoslovni pedagogiki po prvi svetovni vojni
Ana Šmidhofer, 2018, izvirni znanstveni članek

Opis: Razprava analizira pojmovanje vzgoje v slovenski duhoslovni pedagogiki po prvi svetovni vojni in pokaže, kako so razumeli vzgojo vodilni predstavniki te pedagoške smeri: Karel Ozvald, Franjo Čibej in Stanko Gogala. Uvodoma smo orisali temeljne značilnosti duhoslovne pedagogike v Nemčiji, od koder ta pedagoška smer izhaja. Nato smo predstavili bistvene poteze slovenske duhoslovne pedagogike. Jedro razprave analizira razumevanje vzgoje (in z njo povezanih pojavov) pri Ozvaldu, Čibeju in Gogali. V sklepu smo nakazali položaj te pedagoške orientacije v drugi polovici 20. stoletja ter njeno aktualnost s stališča sodobne pedagogike.
Ključne besede: duhoslovna pedagogika, zgodovina pedagogike, vzgoja, Slovenija, sodobna pedagogika
Objavljeno: 14.05.2018; Ogledov: 23; Prenosov: 0
.pdf Celotno besedilo (400,69 KB)

37.
Otrokovo doživljanje bivanja v bolnišnici z vidika staršev in medicinskega osebja
Zlatka Cugmas, Anika Smeh, 2018, izvirni znanstveni članek

Opis: V raziskavi je sodelovalo 84 staršev hospitaliziranih otrok in 46 medicinskih sester oziroma tehnikov. Hospitalizacija pomeni za otroke distres, zato aktivira sistem navezanosti na starše. Starši in medicinsko osebje so ocenili vedenje otrok ob sprejemu v bolnišnico, med bivanjem v njej in ob odpustu. Odgovorili so na vprašanja, kakšen odnos imajo do hospitaliziranega otroka, ali bolnišnični oddelki imajo igralnico, ali otroke obiskuje bolnišnična vzgojiteljica ter kdo nudi pomoč otroku s prilagoditvenimi težavami. Ugotovili smo, da obstajajo pomembne razlike v pogostosti različnih otrokovih vedenj med različnimi obdobji bivanja v bolnišnici. Od nevarnih vzorcev navezanosti sta se izrazila predvsem upiranje in neorganiziranost.
Ključne besede: otroci, starši, medicinsko osebje, hospitalizacija, psihični hospitalizem
Objavljeno: 14.05.2018; Ogledov: 22; Prenosov: 0
.pdf Celotno besedilo (506,07 KB)

38.
Elementary school teachers’ attitudes towards the importance and use of teaching methods in visual arts education
Zlata Tomljenović, 2018, izvirni znanstveni članek

Opis: The quality of the teaching process in visual arts largely depends on a creative and effective combination of both general and subject-specific (visual arts) teaching methods. The aim of this study was to determine in- service teachers' perceptions of the features, specifics, importance and objectives of teaching methods in visual arts education, as well as their perception of the importance of visual arts as a school subject. The research was conducted on a sample of 373 Croatian elementary school teachers. A correlation was determined between the following variables: “teachers' work experience”, “teachers' perception of the importance of visual arts education” and the variable: “use of teaching methods in visual arts classes”. Findings have implications for modernizing and improving school practice; they also suggest further research in this area.
Ključne besede: learning, teaching, interactive approach, generic teaching methods, subject-specific teaching methods, elementary school teachers, teaching strategies, visual arts
Objavljeno: 14.05.2018; Ogledov: 21; Prenosov: 0
.pdf Celotno besedilo (498,08 KB)

39.
Katere glasbene zvrsti najraje poslušajo predšolski otroci?
Katarina Habe, Tomaž Bratina, 2018, izvirni znanstveni članek

Opis: Namen naše raziskave je bil ugotoviti, kakšne so glasbene preference predšolskih otrok ter v kolikšni meri so povezane z glasbenimi preferencami staršev. V kvantitativnem delu raziskave je sodelovalo 250 otrok, starih 5 in 6 let, od tega 118 dečkov in 132 deklic. V kvalitativni del pa smo vključili 15 otrok in po enega od staršev teh otrok. Udeleženci so ocenjevali všečnost enominutnih posnetkov desetih najpogostejših glasbenih zvrsti in v kvalitativnem delu podajali tudi razloge za všečnost oziroma ne všečnost. Rezultati so pokazali, da predšolski otroci pozitivno vrednotijo vse glasbene zvrsti, najbolj pa otroško pesem v izvedbi otroka. Primerjava glasbenih preferenc otrok in staršev kaže, da so le-te pomembno povezane.
Ključne besede: predšolski otroci, glasbene preference, glasbene zvrsti, slušna odprtost, starševski vpliv
Objavljeno: 14.05.2018; Ogledov: 9; Prenosov: 0
.pdf Celotno besedilo (523,99 KB)

40.
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