Search results for "RMS"
showing 10 items of 3815 documents
Pirkstiņrotaļas un rotaļas ar priekšmetiem 3- 4 gadus vecu bērnu griešanas prasmes sekmēšanai
2019
Kvalifikācijas darba tēma ir, “Pirkstiņrotaļas un rotaļas ar priekšmetiem 3-4 gadus vecu bērnu griešanas prasmes sekmēšanai”. Darba mērķis ir teorētiski analizēt un praktiski pētīt, kā pirkstiņrotaļu un rotaļu ar priekšmetiem pielietošana sekmē 3-4 gadus vecu bērnu griešanas prasmes. Mērķa sasniegšanai tika izvirzīti vairāki uzdevumi: 1. Analizēt pedagogu un psihologu atziņas par 3-4 gadus vecu bērnu attīstību un raksturot griešanas prasmes. 2.Analizēt pedagogu atziņas par rotaļu, pirkstiņrotaļu pētījuma kontekstā. 3.Veikt pētījumu par griešanas prasmju sekmēšanu rotaļā. Darba pirmajā daļā teorētiski tiek analizēta pedagogu un psihologu atziņas par bērna attīstības īpatnībām vidējā pirmskol…
GPS izsekošanas sistēmas funkcionalitātes uzlabojumi
2021
Kvalifikācijas darba ietvaros ir izstrādāt “Degvielas atskaites” programmatūru, ar kuras palīdzību atvieglotu darbu grāmatvežiem un ietaupītu viņu laiku, uzskaitot uzņēmuma tehnikas degvielas lietošanu. Programmatūra ļauj lietotājiem pievienot jaunus degvielas čekus, tos skatīt, rediģēt, kā arī dzēst. Programmprodukta mērķis ir degvielas čeku ievietošana datu bāzē un to datu ģenerēšana atskaites veidā. Funkcionalitātes uzlabojumi tika izstrādāti C# valodā, izmantojot Microsoft .NET satvaru un tajā esošo Windows Forms bibliotēku, Microsoft RDLC Report Designer .NET ietvaru, kā arī SQL Server Express datubāzi.
Partial discharges at different voltage waveshapes: Comparison between two different acquisition systems
2018
In modern HV apparatuses the wide use of electronic converters, increase the stress on the involved insulation systems and thus affect the reliability of the whole power grid. Additionally, such non-sinusoidal voltage shapes contain high gradient flanks that create problems in the detection of partial discharge (PD) activity. The aim of this paper is to discuss the methodology on how to suitably approach PD detection in insulation systems exposed to various voltage waveshapes in general by comparing two different measuring systems. The first one, equipped with a resonant PD decoupler, designed specifically for detection at typical power electronic waveshapes and the other one, based on an a…
Validation of a 3D mathematical model for feed rod melting during floating zone Si crystal growth
2019
Abstract A mathematical model of global 3D heat transfer in floating zone silicon single crystal growth process is used to predict the shape of the open melting front of the feed rod. The model is validated using measurement data from research-scale growth experiments. Shape profiles of the open melting front are obtained from the feed rod leftover using a movable dial gauge. Azimuthal asymmetry of the rim of the open melting front is revealed in both simulations and measurements, quantitatively indicating the influence of the main slit of the inductor.
Channel forms recovery in an ephemeral river after gravel mining (Palancia River, Eastern Spain)
2017
[EN] During the 1970s, the Palancia River was intensively affected by gravel mining instream. This activity completely destroyed the fluvial forms, devastating the original wandering pattern. At the end of the 1980s, gravel mining ceased and the river started a process of recovery, only altered by several clearing operations. The aim of this work is to describe these processes of change, analyzing the river's morphosedimentary conditions through a GIS analysis of aerial photographs previous to, simultaneous with, and subsequent to the intense gravel mining activity. Results explain the current difficulties of some ephemeral rivers to recover their original forms, because of the sediment and…
Humusica 2, article 19: Techno humus systems and global change - Conservation agriculture and 4/1000 proposal
2018
International audience; Philosophy can overlap pedology. It is not casual that life begins and finishes in the soil. We separated the concepts of Humipedon, Copedon and Lithopedon. Some sections were dedicated to the founders of the movement for a new type of agriculture (agroecology). They simply proclaim to accompany the process of natural evolution instead of spending a lot of energy in hunting competitor organisms with pesticides or boosting the soil with mineral fertilisation and tillage. The core of the article is built on a biological concept of the soil and shows researches supporting this view. After pointing to the soil structure and illustrating its natural genesis, explaining wh…
NPP VIIRS land surface temperature product validation using worldwide observation networks.
2013
International audience; Thermal infrared satellite observations of the Earth's surface are key components in estimating the surface skin temperature over global land areas. This work presents validation methodologies to estimate the quantitative uncertainty in Land Surface Temperature (LST) product derived from the Visible Infrared Imager Radiometer Suite (VIIRS) onboard Suomi National Polar-orbiting Partnership (NPP) using ground-based measurements currently made operationally at many field and weather stations around the world. Over heterogeneous surfaces in terms of surface types or biophysical properties (e.g., vegetation density, emissivity), the validation protocol accounts for land s…
Editorial: Seismicity in Volcanic Areas
2021
International audience
Understanding the Origins of Problem Geomagnetic Storms Associated with "Stealth" Coronal Mass Ejections.
2021
Geomagnetic storms are an important aspect of space weather and can result in significant impacts on space- and ground-based assets. The majority of strong storms are associated with the passage of interplanetary coronal mass ejections (ICMEs) in the near-Earth environment. In many cases, these ICMEs can be traced back unambiguously to a specific coronal mass ejection (CME) and solar activity on the frontside of the Sun. Hence, predicting the arrival of ICMEs at Earth from routine observations of CMEs and solar activity currently makes a major contribution to the forecasting of geomagnetic storms. However, it is clear that some ICMEs, which may also cause enhanced geomagnetic activity, cann…
Terrestrial plants and marine algae from the Late Jurassic lithographic limestone of the Causse Méjean (Lozère, southern France)
2016
International audience; A new Late Jurassic flora was discovered in the fossiliferous lithographic limestone of the Causse Méjean, Lozère (southern France). It consists of the first Kimmeridgian/Tithonian plants from this area. Fossil plants are represented by megaremains preserved as impressions. This flora shows a co-occurrence of terrestrial plants and marine algae. The land plants include vegetative remains ascribed to bennettitaleans (Zamites Brongniart, 1828), conifers (Brachyphyllum Brongniart, 1828), and pteridosperms (Cycadopteris Zigno, 1853). Marine algae were ascribed to dasyclads (Goniolina D’Orbigny, 1850). Lithological and palaeontological features suggest preservation in a f…