Search results for "Planetary Science"
showing 10 items of 4367 documents
Ground fault distribution on overhead transmission lines
2006
When a ground fault occurs on an overhead transmission line in a power network with grounded neutral, the fault current returns to the grounded neutral through the tower structures, ground return paths and ground wires. This paper presents an analytical method in order to evaluate the ground fault current distribution in an effectively grounded power network. The effect of soil resistivity, ground resistance of towers and power line configuration, on the magnitude of return currents, has been examined.
Analysis of Energy Efficiency of Different Setups Able to Perform Single Point Incremental Forming (SPIF) Processes
2014
Abstract Production processes, as used for discrete part manufacturing, are responsible for a substantial part of the environmental impact of products, but are still poorly documented in terms of environmental impact. The present paper proposes an energy analysis of single point incremental forming processes (SPIF). The electrical energy consumption of two different setups have been considered and compared. In particular the power demand of one of the most used machine tools architecture able to perform SPIF process, namely a CNC milling machine, has been measured. The obtained results have been compared with the ones obtained for an innovative high speed incremental forming processes perfo…
Warehouse threats and loss prevention management in case of fire
2016
Abstract Warehouses play an important role when it comes to the reception, delivery and storage of various types of goods. Due to the complex scenarios that may occur, as well as the heterogeneous nature of goods, warehouses bear a higher risk of accidents. Regardless if we’re taking about removing hassle or standardizing operations we speak the same language: insuring efficiency and increased efficiency leads to smart cost maintenances. In the article hear by we will observe the behavior of different warehouse materials in the case of trigger fired. Starting from the results obtained during the low scale tests and completing the premises with the large scale experiment (warehouse scale), w…
IT Technology Implications Analysis on the Occupational Risk: Cloud Computing Architecture
2014
Abstract The present paper is divided into three major areas: the analysis of occupational risk implications at national and international level, the European priorities in terms of occupational risk and the existing cloud computing services. Since human resource is present within each organization, it is required a comprehensive and actual assessment of the processes in which they participate. Like in any daily activity, processes and people contribute to the emergence of risks. If each organization creates healthy and safe workplaces that means that it contributes to the sustainable development of the area in which it operates. It can be said that occupational risk assessment and occupati…
ESTCube-1 in-orbit experience and lessons learned
2015
ESTCube-1 is a student satellite project lead by the University of Tartu, Estonia, and supported by the European Space Agency (ESA) via Plan for European Cooperating States (PECS). Development of ESTCube-1 has been a collaborative effort with many international partners. The satellite is shown on Figure 1 [1].
Small Bowel Enteroscopy − A Joint Clinical Guideline from the Spanish and Portuguese Small Bowel Study Groups
2020
The present evidence-based guidelines are focused on the use of device-assisted enteroscopy in the management of small-bowel diseases. A panel of experts selected by the Spanish and Portuguese small bowel study groups reviewed the available evidence focusing on the main indications of this technique, its role in the management algorithm of each indication and on its diagnostic and therapeutic yields. A set of recommendations were issued accordingly.Estas recomendações baseadas na evidência detalham o uso da enteroscopia assistida por dispositivo no manejo clínico das doenças do intestino delgado. Um conjunto de Gastrenterologistas diferenciados em patologia do intestino delgado foi selecion…
Inter-basin water transfer conflicts. The case of the Tagus-Segura Aqueduct (Spain)
2020
Since its inauguration in 1979, the Tagus-Segura Aqueduct has become one of the hydraulic infrastructures that have given rise to the highest number of inter-regional conflicts in Spain during recent decades. The aim of this paper is to analyse the political, social, environmental and economic conflicts presented in the donor (Tagus) and recipient (Segura) basins of this infrastructure. To this end, through the holding of interviews with the main stakeholders and an analysis of the regulations, an assessment has been made of the results (for and against) of those who defend maintaining this infrastructure, owing to its far-reaching social and economic impact, and those who advocate its imme…
REMOVAL OF AN ORGANIC REFRACTORY COMPOUND BY PHOTOCATALYSIS IN BATCH REACTOR - KINETIC STUDIES
2015
The Blue Flag Programme AS Pro-Environmental Behaviour Instrument for Coastal Destinations: Towards Municipal Coastal Governance and Communication
2021
The research focuses on evaluation of the Blue Flag programme implementation in Latvia since the year 1998, when the programme’s operations started. It includes analysis and an overview of both the national and local level impacts and the results of the programme implementation. With regard to national level, approach and experience, the overview focuses on effectiveness and the role of the Blue Flag programme as a supporting instrument for successful implementation of environmental legislation. This programme is also analysed as a communication instrument in promoting environmental policies within 500 km long of coastline areas, which in Latvia are announced the national interest territori…
Environmental Risk Score of subclinical Psychopathology risk in children
2020
Current knowledge on environmental causation for psychiatric disorders suggests a complex picture with a multitude of social, physical and chemical exposures occurring at different stages of life. ...