Search results for "DSL"

The geographic information in the assessment of geohazard in the marine environment

2011

Slope instability and erosion, mass transport, volcanic and tectonic activity, fast sediment accumulation fluid escape are the main processes responsible for the geohazard in marine environment. A major knowledge about the geological setting of the offshore areas and related processes can be crucial to assess and manage the potential geological risks. High resolution morphobathymetric surveys, yielded in the frame of the MaGIC project (Marine Geohazards along the Italian Coasts), integrated with previously acquired data, single-channel seismic reflection profiles, backscatter data and sediments sampling, allow to define the geomorphological, stratigraphic and structural features in the offs…

Stacionārā strādājošu māsu arodslimību rašanās ietekmējošie faktori

2020

Bakalaura darba tēma - Stacionārā stādājošu māsu arodslimības ietekmējošie faktori. Medicīnas māsas katru dienu ir pakļautas arodfaktoru ietekmei, kuras dēļ var rasties problēmas ar veselību un nespēja veikt darbu. Darba mērķis ir noskaidrot stacionārā strādājošu māsu arodslimības rašanās ietekmējošos faktorus. Pētniecības uzdeumi ir sekojoši: apkopot un analīzēt literatūru un statistikas datus, kas palīzdes atklāt darba aktuālitāti, izstrādāt pētījuma instrumentu, veikt pētījumu, apkopot un analīzēt iegūtus rezultātus, izstrādāt secīnājumus. Pētījuma hipotēze: Stacionārā strādājošo māsu arodslimību rašanos visbiežāk ietekmē pašu māsu nepareiza attieksme pret ergonomikas ievērošanu darbā. P…

A Low Cost Customizable Micro-ROV for Environmental Research - Applications, Advances and Challenges

2016

Summary Several shallow submarines areas are characterized by considerable releases of hydrocarbon gases, which, during earthquakes or volcanic activity, may suddenly and violently occur. In some instances, changes in chemical and physical properties of gas emissions, which are generated by geothermal systems connected to the volcanoes’ plumbing system, are important precursors of volcanic activity and useful indices for the study of the geothermal field. Furthermore, some superficial structures such faults, landslide slopes or archaeological relics should be studied with such a high detail that geophysical and bathymetric surveys are unable to provide. In response to the needs increasingly…

Synthesis of a quenchable high-pressure form of magnetite (h-Fe3O4) with composition Fe1(Fe2+0.75Mg0.26)Fe2(Fe3+0.70Cr0.15Al0.11Si0.04)2O4

2014

We report the synthesis of h-magnetite, ideally h-Fe 3 O 4 with considerable amounts of substitutional cations (Cr, Mg, Al, Si) and quenchable to ambient conditions. Two types of experiments were performed at 18 GPa and 1800 °C in a multi-anvil press. In one, we used an oxide mixture with a majoritic stoichiometry Mg 1.8 Fe 1.2 (Al 1.4 Cr 0.2 Si 0.2 Mg 0.2 )Si 3 O 12 , with Si and Mg in excess as starting material (MA-367, MA-380). In the second type of experiment (MA-376), we started from an oxide mixture on the composition of the Fe-oxide phase obtained in MA-367. The Fe-oxide phases of both experiments were investigated by electron microprobe and transmission electron microscopy includin…

Ar darbu saistītās muskuļu skeletālās sistēmas slimības un psihoemocionālie riska faktori remontaslēdzniekiem AS "Rīgas siltums"

2018

„Ar darbu saistītās muskuļu skeletālās sistēmas slimības un psihoemocionālie riska faktori remontatslēdzniekiem AS “Rīgas siltums””. Darba autore: Kristīne Cvirko Darba zinātniskā vadītāja: Dr. med., asociētā profesore Ženija Roja Darbs izklāstīts uz 85 lpp., ietver 44 attēlus, 7 tabulas, 9 pielikumu, 49 informatīvos avotus. Pētījums sastāv no 4 daļām. Pirmajā daļā ir apkopota un analizēta literatūra par uzņēmumu, par remontatslēdznieka profesiju, kā arī muskuļu sketetālās sistēmas slimību un psihoemocionālo risku cēloņi remontatslēdznieku darbā. Literatūras analīze uzrāda, ka remontatslēdznieki savā ikdienas darbā saskaras ar psihoemocionāliem un ergonomiskiem riskiem. Otrajā daļā ir aprak…

Effects of Digital Elevation Model resolution on evaluation of landslide susceptibility with a logistic regression model.

2013

The use of statistical methods together with the GIS technologies is currently one of the most efficient tools in the assessment of landslide susceptibility. The correlation between the physical phenomenon and its triggering factors depends on several factors, including the resolution at which the elevation data are represented in a Digital Elevation Model (DEM). The resolution becomes increasingly important as the use of DEM data is extended for spatial prediction of terrain attributes such as slope, aspect, plan and profile curvature, etc., which are considered as triggering factors of the landslides. Many methods exist in scientific literature to capture and model the correlation between…

Field observations of an earth flow event in the valley of Platani River (Sicily-Italy)

2005

Natural Laboratories for Field Observation About Genesis and Landscape Effects of Palaeo-Earthquakes: a Proposal for the Rocca Busambra and Monte Bar…

2018

Earthquakes are phenomena that are still being learned by the scientific community, and poorly known, especially as regards the prevention, by the population. Having a more complete knowledge is a basic step in understanding the vastness and intensity of the destructive phenomenon that involves a great amount of people. The recent earthquakes occurred in Central Italy (L’Aquila and Amatrice earthquakes) are examples that demonstrate the importance of having knowledge about these phenomena to contrast their destructive effects. We present a geological field trip to recognise causes and landscape effects of palaeo-earthquakes recorded in the Mesozoic rock successions outcropping in Sicily. Th…

Ergonomiskie darba vides riski biroja darbiniekiem, strādājot attālināti, un praktiskie risinājumi

2020

‘’Ergonomiskie darba vides riski biroja darbiniekiem strādājot attālināti, un praktiskie risinājumi’’. Kristaps Kristapsons., Bakalaura darba vadītāja asoc. profesore Ženija Roja. Darbs sastāv no 3 nodaļām: literatūras analīze un apraksts, empīriskais pētījums un rezultāti, praktiskie risinājumi. Bakalaura darbs izstrādāts ar mērķi, lai pētītu un novērtētu attālināti nodarbināto ergonomiskos darba vides riskus. Informācijas ieguve tika nodrošināta, veicot aptauju par darba vietas un telpas atbilstību, darba vietas iekārtojuma atbilstību, organizatoriskajiem jautājumiem. Literatūras analīze uzrādīja, ka attālinātā darbā nodarbinātie pamatā pakļauti ergonomiskiem riskiem, piespiedu darba pozā…

The Contribution of Electrical Resistivity Measurements to the Analysis of Landslide Events

2005

In order to gain insight into the study of natural avalanches dynamics, we illustrate a statistical model based on a dissipative dynamical variable associated to a position dependent factor of safety field. This model, as experimentally demonstrated, is able to reproduce the complex structure of landslide events, such as power-law distributions. In this paper, we introduce an explicit dependence of the safety factor on the electrical resistivity to simulate landslide events in pyroclastic soils. An application of the model to data acquired in a test area characterized by flowslide events (Monte Albino, Campania Region - South Italy) bear witness the relevant role played by the resistivity m…