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Geomorphological characteristics of karst on contact between limestone and dolomite in Slovenia
Petra Gostinčar, 2016, doktorska disertacija

Opis: Contact karst is a type of karst formed where allogenic waters from the surface influence the karst geomorphic system. Contact karst may be considered in both a strict sense and in a wide sense. In a strict sense, contact karst is the karst phenomena and forms influenced by the contact between a karstifiable rock and a non-karstifiable rock. In a wide sense, contact karst may also be the karst phenomena and forms influenced by the contact between two different karstifiable rocks, for example limestone and dolomite. This thesis focuses on the geomorphological characteristics of contact karst on limestone-dolomite contacts in Slovenia. The purpose of the research was to determine which processes contribute to the development of contact karst on the contact between limestone and dolomite, to define their dynamics, and to identify which surface and underground landforms are developed. The spatial distribution of contacts between limestone and dolomite in Slovenia was determined in a GIS. Using existing lithological data as a data layer, the extent of carbonate rock cover in Slovenia was calculated. Carbonate rocks cover 47 % of Slovenia’s territory (27 % limestone, 14 % dolomite, and 6 % clastic carbonate or impure carbonate rocks). And, there are 1,353 limestone-dolomite contact lines in the country, totalling a length of 2,625 km. Study areas were selected based on GIS analysis of the limestone-dolomite contacts. A total of 17 areas in Slovenia were studied in detail. Fieldwork at the study areas consisted of the collection and analysis of rock, sediment, and water samples, allowing each study area to be geomorphologically mapped. General factors contributing to contact karst development on the lithological contact between limestone and dolomite were determined. The most important factor appears to be the characteristics of the inflow part, formed on the dolomite. Where dolomite functions as a karst rock, the water is dispersedly drained into the karst. In that case, the limestone-dolomite contact does not function as contact karst. Alternatively, where the dolomite functions as fluviokarst, a point recharge, or sinking stream, is formed. In that case, contact karst may be formed. The fluviokarstic character of the dolomite depends on its chemical and mechanical properties. The dolomite bedrock must be positioned at a higher elevation than the neighbouring limestone bedrock. To meet this requirement, dolomite beds, which in Slovenia are generally older than limestone and hence stratigraphically positioned below the limestone beds, need to be positioned above limestone by either folding that leads to inverse stratification, overthrusting, or by displacement along faults. Along faults, the dolomite is more prone to mechanical weathering due to tectonic crushing in addition to its chemical properties. Hence, contact karst is more likely to form at thrust contacts between thrust limestone and dolomite. Limestone-dolomite contact karst develops predominately at higher elevations due to increased precipitation (where allogenic inflow is higher) and greater frost action due to lower temperatures. Intense mechanical weathering of dolomite over limestone directly affects contact karst processes and significantly contributes to the spatial distribution of these types of surfaces. The location of the water table close to the surface is also a leading factor in limestone-dolomite contact karst formation due to enhanced border corrosion. Landforms typical of contact karst were identified in the study areas during geomorphological analyses. However, they are not as clearly recognizable as those on contact between carbonate and non-carbonate rocks. The reason for this is the fact that allogenic waters from dolomitic catchment areas are by far not as corrosive as those from non-carbonate catchment areas.
Najdeno v: ključnih besedah
Ključne besede: carbonate rocks, dolomite, limestone, contact karst, allogenic water, karst geomorphology
Objavljeno: 19.12.2016; Ogledov: 3847; Prenosov: 162
.pdf Polno besedilo (126,22 MB)

Interface phenomena between CdTe and ZnTe: Cu back contact
Alessio Bosio, Roberta Ciprian, Alessio Lamperti, I Rago, Barbara Ressel, Greta Rosa, Matija Stupar, E Weschke, 2018, izvirni znanstveni članek

Opis: Thin film technology has reached a maturity to achieve conversion efficiencies of the order of 22%. Among thin films, CdTe-based photovoltaic modules represent 80% of the total production. Nonetheless, some issues concerning back-contact are still open. In industrial process a chemical etching is required in order to make the CdTe film surface rich in Te. The Te-excess is fundamental in order to form a stable telluride compound with copper and to obtain an ohmic, low-resistance back-contact. Moreover, the Te-excess hinders the fast diffusion of copper in CdTe and its achievement of the junction region, preventing the destruction of the device. In this paper we study a ZnTe:Cu buffer layer deposited onto a CdTe film, characterized by a naturally Te-rich surface obtained with a particular chlorine heat treatment without any chemical etching. Copper diffusion and the CdTe/ZnTe:Cu interface were studied by x-ray
Najdeno v: ključnih besedah
Ključne besede: solar cells, CdTe, ZnTe:Cu back contact
Objavljeno: 29.11.2018; Ogledov: 1978; Prenosov: 0
.pdf Polno besedilo (2,23 MB)

The importance of not belonging: Paradigmaticity and loan nominalizations in Serbo-Croatian
Marko Simonović, Boban Arsenijević, 2018, izvirni znanstveni članek

Opis: In a number of Slavic and Germanic languages, various derivational affixes and morphological patterns of Latin origin are relatively common, and bear effects as abstract as deriving event nouns from verbs and property nouns from adjectives. This seems to contradict the general observation that abstract morphology typically is not subject to borrowing. We discuss the status of two Serbo-Croatian (S-C) nominalizing Latinate suffixes, -cija and -itet, complemented by one Germanic suffix, -er. On our analysis, these are not borrowed suffixes and derivational patterns, in the sense that they were present in another language and got copied into S-C, but rather suffixes and patterns which emerged within S-C, more specifically in the borrowed stratum of the S-C lexicon. Crucial factors in their emergence were the shared semantic properties of the nouns ending in the respective sequences (-cija, -itet and -er), and the quantitative properties of these sequences closely matching those of native derivational suffixes. Pragmatic, phonological and prosodic constraints apply to these derivations to the effect that the suffixes that have emerged in the borrowed domain of the lexicon never enter a competition with the native nominalization patterns.
Najdeno v: ključnih besedah
Ključne besede: nominalisation, borrowing, loanword, language contact, Serbo-Croatian
Objavljeno: 29.11.2018; Ogledov: 1647; Prenosov: 76
.pdf Polno besedilo (378,27 KB)

Augmented Reality and Chronotopicality
Narvika Bovcon, Aleš Vaupotič, prispevek na konferenci brez natisa

Opis: The reality-virtuality continuum (Paul Milgram et al., 1994) establishes a foundational mixed reality as a spectrum of intermediate options. The ICT based databases are increasingly superimposed on and integrated in our life-world. The new media art – and contemporary media in general – can be seen through two points of view: the technical aspect where the reality is supplemented by (3-D, networked) computerbased data. Secondly, the augmented reality can be construed as a real superimposition of different realities, that is foregrounded using Mikhail Bakhtin’s notion of chronotopicality. The MAST symposium (18. & 19.11.2019, ex-Daimond (xD), Nova Gorica, Slovenia), Pixxelpoint 2019.
Najdeno v: ključnih besedah
Ključne besede: augmented reality, literary history, literatures in contact, EDUKA2
Objavljeno: 18.11.2019; Ogledov: 1370; Prenosov: 0
.pdf Polno besedilo (237,93 KB)

Analysis of COVID-19 tracking tool in india: case study of aarogya setu mobile application
Vaishnavi Verma, Prashi Goyal, Srishti Wadhera, Rajan Gupta, Manan Bedi, 2020, izvirni znanstveni članek

Opis: COVID-19 tracking tools or contact-tracing apps are getting developed at a rapid pace by different governments in their respective countries. This study explores one such tool called Aarogya Setu, developed by the Government of India. It is a mobile application developed under the Health Ministry, as a part of the E-Governance initiative, to track and sensitize the citizens of India in a joint battle against COVID-19 spread. The study aims to understand various useful features of this tool and to present different concepts of data science applied within the application along with its importance in managing the ongoing pandemic. The App uses Bluetooth and GPS technologies to alert a user when they are nearby a COVID-19 infected person. The application uses various Data Science concepts such as Classification, Association Rule Mining, and Clustering to analyze COVID-19 spread in India. The study also shows potential upgradations in the application, which includes usage of Artificial Intelligence and Computer Vision to detect COVID-19 patients. The study would be useful for mobile technology professionals, data science professionals, medical practitioners, health-related frontline workers, public administrators, and government officials.
Najdeno v: ključnih besedah
Povzetek najdenega: ...COVID-19 tracking tools or contact-tracing apps are getting developed at a rapid...
Ključne besede: COVID-19, India, contact-tracing, tracking tool, Bluetooth, GPS, COVID19 reporting tool, Aarogya Setu
Objavljeno: 01.04.2021; Ogledov: 380; Prenosov: 15
URL Polno besedilo (0,00 KB)
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Technology applications for health safety decision making under COVID-19 pandemic management
Rajan Gupta, Saibal K. Pal, Aayush Khattar, King Baliyan, 2020, objavljeni znanstveni prispevek na konferenci

Opis: A lot of new technological applications are emerging to combat the deadly novel coronavirus. This research study gives an overview of different applications that are developed by Government Institutions, Private Firms, and Individual Citizens across the world. The applications are reviewed based on their widespread use, effectiveness, availability to the broader audience, cost to implement it, concerns regarding the privacy and information collected by these apps and systems. The major eight areas of technology applications covered in this study are Contact Tracing, Social Distancing & Mask Detection, Live-feeds based Dashboards, Information Searching, Big Data and Robotics, Web-based Disease Surveillance Tools, Patient-level Information, Doctor-Patient interaction, and Informatory Chatbots. More than 100 apps were collected for this research survey to conclude the different categories in which technology is being used for decision making. This study will be useful for various health administrators, professionals, researchers, and academicians.
Najdeno v: ključnih besedah
Ključne besede: COVID-19, coronavirus, technology applications, contact tracing, social distancing, chatbots, data lakes
Objavljeno: 02.04.2021; Ogledov: 356; Prenosov: 16
URL Polno besedilo (0,00 KB)
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Technological and analytical review of contact tracing apps for COVID-19 management
Poonam Chaudhary, Saibal K. Pal, Rajan Gupta, Gaurav Pandey, 2021, izvirni znanstveni članek

Opis: Role of technology is improving for COVID-19 management all around the world. Usage of mobile applications, web applications, cloud computing, and related technologies have helped many public administrators worldwide manage the current pandemic. Contact tracing applications are such mobile app solutions that are used by more than 100 countries today. This study presents a structured research review-based framework related to multiple contact tracing applications. The various components of the framework are related to technological working, design architecture, and feature analysis of the applications, along with the analysis of the acceptance of such applications worldwide. Also, components focusing on the security features and analysis of these applications based on Data Privacy, Security Vetting, and different attacks have been included in the research framework. Many applications are yet to explore the analytical capabilities of the data generated through contact tracing. The various use-cases identified for these applications are detecting positive case probability, identifying a containment zone in the country, finding regional hotspots, monitoring public events & gatherings, identifying sensitive routes, and allocating resources in various regions during the pandemic. This study will act as a guide for the users researching contact tracings applications using the proposed four-layered framework for their app assessment.
Najdeno v: ključnih besedah
Ključne besede: novel corona virus, location technology, contact tracing applications, Aarogya Setu App, data science, data analysis
Objavljeno: 02.04.2021; Ogledov: 378; Prenosov: 0
.pdf Polno besedilo (3,82 MB)

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