Current Situation of GNSS Networks in Romania

Nowadays, the need for a more precise positioning is a very high, therefore very demanding one, and this is one of the reasons why very large research funding is allocated in satellite technology, the second reason being global geopolitics situation. New satellite constellations are being developed existing satellites that have completed their mission are being replaced with satellites that incorporate technology far superior to their predecessors. Currently we have four constellations with global coverage, NAVSTAR-GPS and Glonass, Galileo and Compass. With the development of these global satellite systems, it is also necessary to develop the user segment, so this requires terrestrial reference stations to be updated to recognize the new signals from them. The article presents the situation of the global satellite systems and the situation of the permanent reference networks in Romania, which are developed by state or private companies

Planul de Amenajare a Teritoriului Judeţean Vrancea

Plan of the Vrancea County is the spatial expression of the socio-economic development of the County. The study will provide a global framework for possibilities and uniform development in regional and national context. P.A.T.J. Vrancea seeks to optimize the use of natural resources, the use of work resources and the distribution of the population in order to create a permanent balance between how to exploit the natural and economic potential, of the one part, and the protection of the environment, on the other hand, through a responsible management of the territory in accordance with the principle of sustainable development. P.A.T.J. Vrancea aimed at solving specific problems of the territory in the context of efficiency, fairness, transparency and the involvement of communities in decision-making

Assessment of small hydropower potential by software. Case study

The rivers hydropower potential is considered one of the oldest renewable energy source used in the electricity production process. A method to investigate the possibility to construct a micro hydropower system on a small river is presented. The analysis and the hydropower assessment were done by using Vapidro-Aste software. Results point out that micro-hydro units can be implemented in remote locations or hybrid renewable energy systems, while the environmental flow is guaranteed

Gamepad Vibration Methods to Help Blind People Perceive Colors

ABSTRACT Visually impaired people, completely or partially blind cannot perceive the surrounding environment as normal healthy people can. Not knowing how colors and shapes look like is a serious penalty and they have to live with it an entire life. It is known that the human brain adapts and compensates with greater capabilities for hearing and touch when vision is low or missing, that is why blind people develop special skills and perform so good when it comes to music and kinetotherapy. Based on this information we are proposing a method that explains colors using vibrations. In this paper we would like to present a new way of transforming an image to vibration by using the capabilities of an Xbox gamepad. During the study on real blind volunteers, this kind of approach proved to be very effective and promising, allowing them to slightly understand how an image, painting or friend looks like

Shading in a distributed environment

This paper presents a tool for light-shading in a distributed environment. A parallelization method based on a concurrent model is described. The purpose of this work is to lower the image generation time in the complex 3D scenes synthesis process. The experimental results concerning the speedup of light shading algorithm are also presented.

Shading in a distributed environment

This paper presents a tool for light-shading in a distributed environment. A parallelization method based on a concurrent model is described. The purpose of this work is to lower the image generation time in the complex 3D scenes synthesis process. The experimental results concerning the speedup of light shading algorithm are also presented

A Comprehensive Survey of Indoor Localization Methods Based on Computer Vision

Computer vision based indoor localization methods use either an infrastructure of static cameras to track mobile entities (e.g., people, robots) or cameras attached to the mobile entities. Methods in the first category employ object tracking, while the others map images from mobile cameras with images acquired during a configuration stage or extracted from 3D reconstructed models of the space. This paper offers an overview of the computer vision based indoor localization domain, presenting application areas, commercial tools, existing benchmarks, and other reviews. It provides a survey of indoor localization research solutions, proposing a new classification based on the configuration stage (use of known environment data), sensing devices, type of detected elements, and localization method. It groups 70 of the most recent and relevant image based indoor localization methods according to the proposed classification and discusses their advantages and drawbacks. It highlights localization methods that also offer orientation information, as this is required by an increasing number of applications of indoor localization (e.g., augmented reality)