Search results for "MAZ"

Plekstes (Platichthys flesus L) agrīno attīstības stadiju bioloģiskais raksturojums Baltijas jūras centrālajā daļā

2014

ANOTĀCIJA Ustups, 2013. Plekstes (Platichthys flesus L.) agrīno attīstības stadiju bioloģiskais raksturojums Baltijas jūras centrālajā daļā. Plekstu ihtioplanktona daudzumu Baltijas jūras centrālajā daļā nosaka nārsta bara lielums un hidroloģiskie apstākļi. Plekstu mazuļu skaitu piekrastes zonā būtiski ietekmē ūdens temperatūra, mēnesis un vēja virziens. Strauja šāgadeņu augšana novērojama līdz septembrim, bet viengadniekiem no pavasara līdz novembrim. Irbes šauruma piekraste ir labvēlīga dzīvotne plekstu mazuļiem, ko nosaka smilšainās seklūdens zonas, daudzveidīgie barošanās objekti un ģeogrāfiskais novietojums attiecībā pret nārsta vietu. Plekstes mazuļu plašais barības spektrs samazina b…

Estimating the Best Reference Homography for Planar Mosaics From Videos

2015

This paper proposes a novel strategy to find the best reference homography in mosaics from video sequences. The reference homography globally minimizes the distortions induced on each image frame by the mosaic homography itself. This method is designed for planar mosaics on which a bad choice of the first reference image frame can lead to severe distortions after concatenating several successive homographies. This often happens in the case of underwater mosaics with non-flat seabed and no georeferential information available. Given a video sequence of an almost planar surface, sub-mosaics with low distortions of temporally close image frames are computed and successively merged according to…

Wide-scope screening of pharmaceuticals, illicit drugs and their metabolites in the Amazon River.

2021

Only a limited number of households in the Amazon are served by sewage collection or treatment facili- ties, suggesting that there might be a significant emission of pharmaceuticals and other wastewater contaminants into freshwater ecosystems. In this work, we performed a wide-scope screening to assess the occurrence of pharmaceuticals, illicit drugs and their metabolites in freshwater ecosystems of the Brazilian Amazon. Our study included 40 samples taken along the Amazon River, in three of its major tributaries, and in small tributaries crossing four important urban areas (Manaus, Santarém, Macapá, Belém). More than 900 compounds were investigated making use of target and suspect screenin…

Sociālpedagoģiskā darbība homofobijas mazināšanā 10.-12. klasēs.

2022

Par Titas Ļitvinovas diplomdarba tēmu tika izvēlēta “Sociālpedagoģiskā darbība homofobijas mazināšanai 10.-12.klasēs”. Pētījuma mērķis ir raksturot homofobiju un tās izpausmes veidus skolā, kā arī izstrādāt un aprobēt sociālpedagoģisko programmu homofobijas mazināšanā 10.-12.klasēs. Teorētiskajā daļā ir aprakstīts homofobijas vispārējais raksturojums un tās izpausmes, homofobijas vēsturiskais aspekts, homofobija kā vardarbība, atstumtība un diskriminācija un homofobija skolā. Praktiskā daļa sastāv no pētījuma par homofobiju skolā, kā arī tajā ir iekļauta sociālpedagoģiskā darbības programma un tās aprobācija homofobijas mazināšanai vidusskolas klasēs. Sociālpedagoģiskā programma tika izveid…

Designing Touchless Gestural Interfaces for Public Displays

Nell’ultimo decennio, molti autori hanno studiato la possibilità di utilizzare le interfacce a gesti come strumento innovativo per supportare l’interazione con i computer. Inoltre, le recenti innovazioni tecnologiche hanno permesso di installare display interattivi in ambienti privati e pubblici. Tuttavia, l’interattività di tali display è spesso basata sull’uso di touchscreen, mentre tecnologie come i dispositivi Kinect-like vengono adottate molto più raramente, soprattutto se si considera l’ambito dei display pubblici. Al giorno d’oggi, l’opportunità di studiare le interfacce touchless per i display pubblici è diventata concreta, e rappresenta il campo di studio di diversi ricercatori. L’…

Human-Robot Teaming Interaction: a Cognitive Architecture Solution

2021

Modelling rainfall interarrival times and rainfall depths at daily scale

2023

Analysis of daily rainfall data, and subsequent modelling of some derived variables concerning rainfall, is fundamental in different areas such as agricultural, ecological, and engineering disciplines. A way of studying the alternance of consecutive rainy days (wet spells) and no-rainy days (dry spells) is through the interarrival time (IT), which is the time elapsed between two consecutives rainy days. If we suppose that IT observations are independent and identically distributed (i.i.d.), ITs are usually modelled through a renewal processes. The simplest renewal process is the Bernoulli process with ITs geometrically distributed. The need to suppose a non-constant probability of rain brin…

Applying a probabilistic model of rainfall and snow days occurrence to daily series recorded in NW Italy.

2014

Daily precipitation records exist spanning several decades. A valuable amount of climatic information exists in the time-series of interarrival times (IT), defined as the succession of times (number of days) elapsed from a rainy (or snowy) day to the one immediately preceding it.In a previous work, Agnese et al. (2014) have been successfully tested some probabilistic modelling of rain occurrence on Sicily rainfall data; particularly, the better fitting of IT’s observed frequencies was obtained by 3-parameter Lerch-series distribution. In this work thisdistribution is tested on 70 years of 20 precipitation time-series taken in the North-West Italy, both in the plain and in the mountains, up …

Improvement of FAO-56 Model to Estimate Transpiration Fluxes of Drought Tolerant Crops under Soil Water Deficit: Application for Olive Groves

2014

[EN] Agro-hydrological models are considered an economic and simple tool for quantifying crop water requirements. In the last two decades, agro-hydrological physically based models have been developed to simulate mass and energy exchange processes in the soil-plant-atmosphere system. Although very reliable, because of the high number of required variables, simplified models have been proposed to quantify crop water consumes. The main aim of this paper is to propose an amendment of the Food and Agricultural Organization (FAO) of the United Nations FAO-56 spreadsheet program to introduce a more realistic shape of the stress function, valid for mature olive orchards (Olea europaea L.). The mod…

Physical and hydraulic characterization of a clay soil at the plot scale

2010

Summary The soil physical and hydraulic properties have to be determined for interpreting and simulating many hydrological processes. An investigation was carried out to determine the physical and hydraulic characteristics of a clay soil at the plot scale. An intensive sampling of the surface soil layer of two plots of 4 × 11 m2 was carried out by measuring, for each plot, dry soil bulk density, ρb, and antecedent soil water content, θi, at 88 sampling points and field-saturated soil hydraulic conductivity, Kfs, at 176 sampling points. A wide range of Kfs values (0.7–5107 mm h−1) were measured by the Simplified Falling Head (SFH) technique. For each variable, the two plots yielded very simi…