ISSN 2344 – 1283, ISSN CD-ROM 2344 – 1291, ISSN ONLINE 2344 – 1305, ISSN-L 2344 – 1283
 

Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Marian Iosif GOMBOŞ

Natural honey was tested as a corrosion inhibitor for bronze in a simulated acid rain solution as Na2SO4and NaHCO3 (pH 5).Electrochemical investigations (potentiodynamic polarization and impedance measurements) showed that honey exert a protective effect against corrosion bronze and, in some cases inhibiting its effectiveness exceeds 93% at concentration level as low as 500ppm. Potentiodynamic polarization method indicates that honey acts mainly as a mixed-type inhibitor with predominantly control of thecathodic reaction. The presence of honey significantly decreases the values of corrosion current density. Electrochemical impedance spectroscopy shows that the inhibition efficiency increases with the increases of honey concentration.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Beata KACZMAREK

The aim of this article is to present the research, which identified the prehistoric human’s relation to the natural resources that can be used repeatedly. For thousands of years human have been learning how to rationally manage nature reserves. The most interesting evidence of the prehistoric “recycling” is clay tablets with Linear B writing which were used in the administrative centre of one of Europe’s oldest civilizations – Mycenaean. It had been developed from about the seventeenth to twelfth century BC in the area of Greece. Clay tablets were not only made of a material that was used again, but they also contained inscriptions showing that Mycenaeans would mend and use again several of metal elements. “Recycling” could be used for the same reason for which we do it today as well – for the reasonable management of scarce non-renewable resources.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Anamaria-Georgeta MĂRGINEAN

The aims of the present paper was to investigate the possibility of using the electrocoagulation method (EC) for the removal of Ni2+ and Cr3+ ions from the wastewaters generated at an electroplating plant from Transylvania area. In he investigated wastewater samples, the concentration of Ni2+ and Cr3+ significantly exceeds the maximum consent limits established by Romanian Standard NTPA001/2002. The influence of the varying operating parameters, such as the applied current intensity (4,5 and 6 A), electrode material (Fe and Al) and the contact time (10 to 60 minutes) on the heavy metals removal was investigated. The results showed that the removal of the metals from electroplating wastewaters solution increases with increasing current density and operating time. Using iron electrodes, over 99.64% of nickel and 99.39% of chromium ions were removed efficiently by conducting the EC treatment at current intensity of 5A, pH of 8.09 and EC time of 60 min. By using aluminium electrodes, the removal efficiency of Ni2+ was 98.21%, at pH 6.02, a current intensity of 5A and an operation time of 60 min.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Dorin TATARU, Andreea Cristina TATARU

One of the sources of pollution in the Jiu Valley is the Thermal Power Plant Paroseni by the gas emissions and by storing carbon and ash resulting from the technological process in ash and slag deposits. Thermal Power Plant Paroseni has large areas of ponds decommissioned and not reentered in natural cycles, and significant quantities of powders pollutants are transported by wind. The purpose of this paper is to identify areas with high dust pollution through the study of dispersion from the slag and ash ponds of the Thermal Power Plant of Paroseni.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Elena-Claudia BOŞOMOIU, Ionuţ-Alexandru MIHAI

The paper presentssome technical solutions for the rehabilitation and modernization of a road sector, located at approx. 500m from the intersection with Marina, opposite the house no. 24 and 26, respectively P27- P27 + 60m, P28- P28 + 5m, Arges County.Crack length, measured along the road, is of approx. 18m.This area has been recently affected by landslides, which resulted in damage to the roadway, including putting difficulties into traffic.A consolidation path solution was established according to the recommendations of technical expertise and geotechnical studies. All these aspects are being achieved through: culverts drainage works controlled by collectors; civil engineering works and restoration of the road embankment.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Ştefan-Silvian CIOBANU

The paper is aimed to present the determination of road geometrical properties for the bypass of Zalău. The work is based on information provided by the Agency for Environmental Protection Zalău. The main characteristics determined in the paper are the length of alignments and the ray of circular and progressive curves. The importances of this work are the current conditions, mentioned in the paper such as high vibration and air pollution.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Ștefania-Cristina DIN, Maria-Cosmina MIUȚĂ, Georgiana-Cristina GRIGORESCU

The main purpose of the geotechnical studies is to determine the physical and mechanical properties of the foundation soil. For the geotechnical studies it is necessary to be taken into account the calculation characteristics which are determined based on characteristic values. This article aims to determine the characteristic values of the geotechnical parameters resulted from the laboratory studies. The calculation of the characteristic values was done according to the Normative of Design NP 122:2010, and the laboratory studies were done according to the national standards in force.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Mihai-Cristian MUSCALU, Tudorel-Adrian SPĂTARU

In the minor Teleajen riverbed, on adjacent area of dike corresponding to Valeni polder occure same deficiences consisting in erosion. The solution proposed aims to reduce the longitudinal river slope and to protect the banks. The treshold’s cross section adopted were chosen depending on stability factor obtained.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Adrian PARASCHIV

The agriculture constitutes an economic importance due to the products and services it offers to society and on which depends the standard of living of the population. But now, agriculture faces particular challenges due to demographic growth, the effects of global climate change and expanding urbanization. In these conditions providing the necessary food products requires appropriate policies and strategies to support this vital economic sector for society.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Diana POPESCU

As in Băleşti, Vrancea county roads are in an advanced state of deterioration, the paper proposes a solution to modernize local roads. For the execution of the roads there is no need for demolition or variations networks because of enforcement works in such a way as to avoid disruptions in the areas specified. It's about asphalting the road structure consisting of layer support, link layer, wear strips, shoulders, ditches and culverts. Road infrastructure works have a direct and indirect, positive and negative impact on the environment, take into account the protection of waters and aquatic ecosystems , the protection of the atmosphere, soil protection, environmental forestry, archaeological sites and historical and not least the human environment. By upgrading local roads ensures comfort traffic safety and promotes the development and growth of the industry of the area.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Simona-Alexandra SBURĂTURĂ

The article refers to the construction of the wastewater treatment plant building from Hulubești village, located in Dâmbovița county, Romania. The building will be a new rectangular reinforced concrete semi-buried construction. It was adopted the elastic mat foundation type. For checking the strength of the structure, it has been treated the loads given by: weight, wind, snow, service loads and seismic action. As a result of stability calculations it could be adopted the best solution regarding the building construction.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Bogdan DUMITRU

By acknowledging the fact that it is more efficient, wise, simple and cost-effective to prevent rather that repair any disaster, the present article is drawing our attention to the importance that Risk Management plays in the decisionmaking process. In the following article there have been pointed out the purpose and process of decision making, what role does risk management play in this process, what results should be expected and how the science of Management can be applied in the Land Reclamation field. What role does Risk Management play in Project planning and how is it helping it to increase its performances and efficiency. Towards the end, we will acknowledge the benefits of risk management in project planning and, how simulating and forecasting the results helps in achieving better results.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Sorin MUSAT, Ovidiu DUTESCU, Maria MESTESUG, Adelin CISMELARU

From all natural catastrophes the earthquakes are the only unpredictable and the most destructive actions that in a few seconds change the fate of people with their goods. The paper presents a type of structural intervention on reinforced buildings and solutions for determine the dynamic building response. On basis of dynamic response recorded for buildings, a methodology for analysing the structural behaviour of this typology of buildings by adequate software for 3D seismic analysing is presented. For this purpose non-destructive and geodynamic methods were used. All the aforementioned ideas are illustrated through a study case.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Daniel-Mihai TOMULESCU

The article presents a modern method of building up constructions, increasingly used at international and European level. The method consists in the introduction of isolation devices to the interface between superstructure and infrastructure so that seismic force acting on the structure to be absorbed by the isolation system Finally, it presents an example of design calculation for the isolation system according to the new design code in Romania, indicative P100-1:2013.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Alexandru IONESCU

Integrated management of water resources approach promoted the development and management of water, land and their resources in order to optimize, balanced economic and social development without compromising the sustainability of ecosystems. The paper is presenting how water resources management was done in Berca community, from Buzau County, covering the full cycle of water use – from water intake of raw water, water treatment, water distribution, collecting waste water and discharging of treated wastewater in natural water bodies, and issues associated with the sustainable services of water supply and sewerage. In this work are presenting all the works contained in the systems of water supply and waste water, describingalso the water treatment plant(WTP) and the wastewater treatment plant, under construction at present.Currently, the Berca villageis supplied from groundwater sources, water treatment is made only through chlorination,the system works gravitational, and the wastewater treatment plant(WWTP) has a physico-mechanical leveland a biological level treatment.Some public institutions and businesses in Berca and neighboring villages, have their own pre-treatment equipment - septic tanks of wastewater resulting from these activities, the wastewater from these tanks are discharged into the Berca WWTP. These systems are managed by the company SC APAPRIMA BERCA SRL, founded in 2011, with only one shareholder, the Local Council of Berca. In conclusion, proper management of water resources in Bercavillage ensures environmental protection and elimination of risk factors for human health.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Alin-Marius NICULA

This article presents a study about sediments and water qualityof Brăteni Lake. This lake is generally used for fishing and leisure. The lands that are close to the lake had been previously used for intensive agriculture. Six surface sediment samples and six surface water samples were collected from three representative points from Brăteni Lake, during two seasons (autumn 2015 and winter 2016). The sediments and water samples were analyzed using a portable multiparameter (WTW Multi 350i). Each sample was analyzed for: total dissolved solids, electrical conductivity, oxidoreduction potential, salinity and pH. Due to the allochtonous materials used in the construction of the dam, the sediment samples collected from near the dam had different parameter values.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Ana ALEXANDRU

The work suggests the theoretical first step on close new-range photogrammetry, in general, and architectural photogrammetry, in particular. The purpose is that to promote the new geomatics technologies, very useful for our world, specialists but non-specialists too, to solve many civil engineering works, old buildings, historic bridges, castles, feudal fortress, archeological sites, historic and art monuments, to protect them, to restore them in order to point out the real, original values of a people, his works, his true achievements. A complete approachment of analytical and digital photogrammetric methods using CAD systems, combined with laser scanning and other non-destructive research techniques of remote sensing has the purpose of finding the best solution for surveying, inventorying, monitoring, restoration and conservation of space-objects. The benefit of combination closing-range photogrammetric methods with others geomatics and geophysics researches is that it provides a solid technical documentation of a space-object as a basis for technical rehabilitation or restoration planning, a total inventory, both quantitative and qualitative. In the framework of our research, we are going to talk about photogrammetric work in general, about representative techniques of space object obtained by photogrammetric methods in close-range photogrammetry, about methods to obtain the photogramma.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Ana ALEXANDRU, Andrei LUPU, Razvan CRETESCU, Valentin DULGHERU

In our contemporary context world is more and more necessary to have a better accuracy in everything we do. So that, in scientific field, there is an explosion of smart devices, which are better and betterevery new year, and whose advantages are obvious for our daily work. Our paper presents the differences between two surveying measurements, the first made with an theodolite Leica Builder 100, and the second one with a total station, Leica TC 407. The measurements were done in UASVM campus, Bucharest.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Daniel AVRAM, Iulian BRATOSIN, Dragos ILIE

Surveying instruments have evolved over time since the 19th century until present. One of the surveying instruments is the theodolite. A theodolite is a precision instrument for measuring angles in the horizontal and vertical planes. The paper aims to highlight the improvements made over time on this instrument in constructive and operational terms.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Ioana Codruţa BĂLŢĂTESCU

The systematic registration represents the identification, description and registration of the immovable properties in the cadastral documents, their measurement and representation on cadastral plans and the data recording on digital formats and the identification and registration of all immovable holders and of UI from condominium constructions, for the registration in the land Book. This paper will address two scientific applications that work with logical data units, thereby bringing each a database . These applications developed for the management of systematic registration data relate to : CG 1.5 , developed by Geotop company and NetSetCAD developed by Data Invest.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Mihaela Roxana BERGHEVA, Valentina Mihaela BULIBASA, Elena Andreea ALECSANDRU, Gigel Adrian CALDAREA

Levelling or terrestrial elevation is the part of the topography that studies the tools and methods for determining the point’s altitude on the terrain surface and representation in plan. With these measurements will be obtaining the third coordinate of a point H - altitude. The article aims to determine rates using three surveying instruments (classical level, total station and digital level) and two survey methods: closed geometrical levelling traverse and trigonometric levelling. Measured points are inside the University of Agronomic Sciences and Veterinary Medicine, Bucharest.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Mădălina-Ștefania BUDE

This paper aims to highlight the facilities that Geographical Information Systems make them available to the users in order to determine optimal solutions for the distribution of stands to be exploited. It also highlights opportunities available to control these systems and suggested solutions. For the study area were chosen vectorized cadastral plans and have taken some points and GPS equipment. After this were measured diameters and heights of trees with which the volumes were determined and then the allowable cut

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Valentina Mihaela BULIBASA, Roxana Mihaela BERGHEVA

Vectorization can involve a series of procedures to achieve an acceptable raster-to-vector conversion. It can be as simple as executing one command to generate the vector features. Depending on the state of the input raster data you are working with, the vectorization process varies. This section is intended to provide an overview of the automatic vectorization experience. For vectorization we chose a trapeze in eight colors,scale 1:25.000.The software we work with isArcGis 10.3.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Maria CIOAZA, Raluca Mihaela DAMIAN

In this presentation we are focusing on the latest technologies for 3D scanning and photomodelling. As the needs for better land survey and better digitalisation of the real word, such as buildings, archeological sites, nature, etc., grew larger and with the implementation of new technologies, many innovative devices have been created as to ensure the best result for real world 3D surveying. This is the case of the device presented in this project, the EyesMap tablet. Implemented by Ecapture, this handheld device gives its user the freedom of use and a full solution in just one device. EyesMap ensures full data processing, by acquisitioning data using the embedded cameras and also using the embedded depth sensor and direct processing of such data on its own EeysMap Software. EyesMap is the 3D modelling solution available to your fingertips.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Andreea Luminița DEDULESCU, Georgiana Clementina DIACONESCU, Alexandru SINTU-LASAT

Georeferencing is a methodology for converting maps from analogue to digital vector. Graphic information can be of two types: raster or vector . Raster graphics is a way to represent imaging software Matrix pixels while vector graphics representation is a method of imaging using geometric primitives (points,segments , polygons ) , characterized by mathematical equations . For georeferencing we chose a trapeze in eight colors ,scale 1:25.000.The software we work with is ArcGis 10.3.The corners of the trapezoid will be converted from geographic coordinates in coordinates stereo 1970.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Timea GERGELY, Georgiana OPRITA, Grațiela PASCAL

The aim of the paper is to eliminate the redundant data included in a geographical information system (GIS) involving surface analysis. Because the GIS applications are used to solve problems from miscellaneous domains,is recommended that the spatial information and the particularities of the area involved to be combined in one raster layer. Principal component analysis applied to raster layers gives such a facility. The studied surface is about 2.5hectares and is a part of the campus of University of Agricultural Science and Veterinary Medicine from Cluj-Napoca. The digital elevation model for the studied area will be generated and the slope and aspect raster layers derived from DEM will be combined using the principal component analysis in order to eliminate the redundant values from the new raster but to keep the particularities of the surface.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Melisa MOCA, Ana Maria LUPESCU, Raluca MUNTE

In the beginning, from TăieturaTurcului, we made a backwards multiple intersection. We have chosen this method because the points we had as visas areunstationable and the station point is stationable. After finishing the measurements on the field, the backwards multiple intersection and the polygonal route, the next step was processing the data from the measurement. For processing the data, we applied the matrix method for the backwards multiple intersection and for determining the provisional coordinates of the beginning point we used the baricentric procedure of the backwards intersection method.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Teodora MOTOCESCU

This paper aims to highlight the evolution of cadastre mainly through a comparative between Romanian cadastre against the German .It is well known that Germany occupies a leading technology and methods of land measurements..Along with this our country belongs to Permanent Committee on Cadastre in the European Union. With a history of about 150 years both Germany and Romania have gone through different phases of technology. At the moment Romania is in full process of national cadastral measurements, given that only 20% of the cadastral approx 40mil are measured, although modern cadastre appearance was registered since 1933.With a long history of land registration in Germany it is a proven fact that a good working system of security of land tenure is very important for a developed society. Investments in land and buildings are very difficult or even impossible without a land registration system. Lessons learned during the reunification process in Germany and the establishment of a market driven economy in the former socialist part of the country. The re-introduction of a cadastral system in the new states was a big task for the surveying professionals in the public and the private sector. Why should Romania invest to follow the German example? Is the technology used by the cadastre workers expired or do we need new ways of exploiting resources?

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Andra Mihaela OANCEA, Teodor-Alexandru SARARU

The aim of this paper is to present the testing and calibration of an Inertial Measurement Unit (IMU) by using an Arduino Uno microcontroller. To accomplish this, the Arduino microcontroller will be programmed through Matlab, considering the number of built-in math and engineering functions and the advantages of the numerous plotting methods. Furthermore, filtering algorithms will deal with the calibration of the sensor and analysis of its behaviour in order to reduce the errors caused by the bias and drift rate of the sensor. The last part of the article will focus on future improvements for the application, in terms of model used, general architecture and tuning techniques as well as the coupling of a GNSS sensor.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Răzvan Casian REBREAN, Denis MIHALI

This paper aims to present the technology of laser scanner which digitally captures the shape of physical objects using a line of laser light. Three dimensional laser scanner creates point cloud of data from the surface of an object. In another words 3D laser scanning technology is a way to capture a physical object exact size and shape into the computer world as a digital 3 dimensional representation. The first step of this kind of project is the field part. In this case was used a static way of measuring because of the scanner which was fixed during the measurements and was not placed on a moving platform such as airplanes, helicopters. The second step is the modelling part which can be done only by using special software for 3D modelling. This part is the most durable because of the point cloud data. In our software that we have chose to use, this data will be represented in a couple of colors such as: white, blue, red, green and yellow, each color having a meaning. Even though nowadays laser scanning technology is expansive represents a most suitable, better, faster way to take different type of measurements with a large type of data, than using a theodolite, a total station or even GPS technology.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Adina Carolina SCHNEIDER

The most powerful method of representing relief is to construct a mathematical model of the earth’s surface: a digital terrain model (DTM) or digital ellevation model (DEM). 3D modeling of urban areas objects is an expanding application. This paper aims to present haw to create a 3D model for a digital terrain model (DTM) or digital ellevation model (DEM) using low cost programs and technologies. 3D modeling of urban area using SketchUp softwere it is a reliable solution. The choice of data sources, terrain sampling techniques and interpolation method used in model construction are critical for the quality of the resulting DTM.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Monica-Elena STOICA, Claudia-Ionela MUSAT

Global positioning system (GPS) equipment, the world's best electronic distance measuring machines (EDMs), are becoming faster and easier to use. Not only does one use this new portable equipment to establish distance, but three‐dimensional positioning is quickly available. The use of GPS as a tool for accomplishing boundary surveys; topographic surveys; location surveys; control surveys for GIS/LIS, photogrammetry, national, state and local coordinate systems; etc. The GPS locations can be performed by established methods, which may be presented as working solutions, depending on the situation on the field and the logistics you have endowed.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Andrei URDEA

The Earth, through his specific characteristics - immobile, indestructible, limited and perceptible for everyone - it’s fundamentally different from the rest of goods required to meet the basic needs of individuals, and by his nature he is necessary for basic needs of human being, providing food and housing. For the state, the land is one of the safest sources of income through “land tax”. For this reason, ever since the states, their leaders paid particular attention to land inventory and registration in public registers of holders of rights and legal relationships

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Ewelina WERNER

A solar cadastre is also called as a roof cadastre or a solar potential map. This solution is to provide a geo-portal for potential users, which allows to define potential of solar energy for specific locations. It is based on a Digital Terrain Model and climate information available for this area. This kind of geoportals are made mainly as an initiative of the local government of the city. The aim is to increase public awareness of the advantages of using solar energy. Analysis of sunlight and solar potential maps can be used in various fields (like civil engineering, energy engineering and spatial planning) and stage of investment. These systems should be user-friendly, ie they should clearly show the information about the energy potential of the location and facilitate decision-making in investment in solar collectors. The aim of project was to analyse the available methods, which allow to determine the value of solar potential for the area (roof of the building) from DTM and energy possible to obtain from this area. The project shows examples of different models of the solar cadastre available to users of the world and their use. Selected solar cadastre maps available to users on the Internet since 2008 have been analysed. Then the maps were compared in terms of their usability and usefulness of the work related to spatial planning. The results will be used to create a solar cadastre concept in Poland.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Ewelina WERNER

The aim of the study is to show the methods of determining the borders of cultivated land and show problems during the update of their status. The current surface of cultivated land is necessary to be known in detail for calculating the exact amount of taxes and subsidies of agricultural land.Discrepancies in the measurements as well as in the use of outdated data can lead to errors in the methods of calculation. The study compared two methods based on differences in determining the land. GPS measurements and the results obtained from orthophotomap were used. The study used agricultural parcels in the possession of the Wroclaw University of Environmental and Life Sciences in Lower Silesia. The research has shown differences in the determination of land borders by using different methods and sources of measurement.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Silviu BADEA, Andrei Liviu CHIRITA, Cristian ANDRONE, Bianca Georgiana OLARU

The aim of this study was to evaluate indoor-air microbiological contamination of the Land Reclamation and Environmental Engineering Faculty building from Bucharest. Samples were taken in May 2014, during both period of intense indoor activity (in the afternoon classes) and less indoor activity (during weekends). Total number of mesophilic aerobic bacteria, yeast and moulds from the air of selected rooms was determined using Koch sedimentation method. We used Petri plates filled with gelose medium to determine the total number of bacteria and Czapek-Dox Agar medium for the filamentous fungi identification. In many cases, a multiple growth bacteria and significant increase of filamentous fungi were observed, especially during intense indoor activity period. According to the standards of microbial air loading, the indoor air of the faculty is relatively clean.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Oana BANU, Diana GORGHIU

The farming and ranching industries are undergoing a transformation, with innovative technologies being developed to improve the way agricultural enterprises are managed. Over the course of the last two years, a number of agriculture apps have been introduced with features like field mapping, planting calculations, spray logs and soil sampling tools.Precision Agriculture has evolved from a concept a half a decade ago into an emerging technology today.With an ever growing world population subject to famine, natural disasters, disease and conflict, changes must be made in agriculture to meet world concerns while remaining committed to sustaining the natural resources need for future production. Precision Agriculture is often described as the next great evolution in agriculture.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Claudiu Ovidiu BARBULESCU, Vlad Gabriel CODESCU

The farming and ranching industries are undergoing a transformation, with innovative technologies being developed to improve the way agricultural enterprises are managed. Over the course of the last two years, a number of agriculture apps have been introduced with features like field mapping, planting calculations, spray logs and soil sampling tools.Precision Agriculture has evolved from a concept a half a decade ago into an emerging technology today.With an ever growing world population subject to famine, natural disasters, disease and conflict, changes must be made in agriculture to meet world concerns while remaining committed to sustaining the natural resources need for future production. Precision Agriculture is often described as the next great evolution in agriculture.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Mihai FRINCU, Corina DUMITRACHE, Andrei Cristian DUMITRIU

The aim of this paper was to evaluate the water quality of the pond from Dendrological Park of our university. In this respect we used physical, chemical and microbiological analysis indicators, according to the Water Framework Directive (2000 /60 / EC). The physico-chemical parameters that we determined were: temperature, turbidity, electrical conductivity, pH and oxygen regime. Microbiological analyzes were performed to determine both the total counts of mezophilic bacteria ( which grow at 22 0C and 37 0C) and the presence of Enterobacteriaceae, especially E. coli (grow on specific medium at 37 0C). Monitoring of all parameters was carried out between July 2014 - March 2015. The results indicate low levels of alterations caused by human action and deviate only slightly from normal.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Mihai FRINCU, Corina DUMITRACHE, Andrei Cristian DUMITRIU

Soil is an important component of all terrestrial ecosystems as well as fundamental resource in the agricultural production system that why monitoring of soil fertility is an important objective for the sustainable agro-ecosystems development. Changes in its physical, chemical and biological properties must be taken into account, in order to evaluate soil fertility. Biological indicators are suitable tools for predicting and assessing soil changes that are caused by both natural and anthropogenic factors. Among the biological features, soil enzymes are often used as indicator of soil fertility because they are very sensitive and respond to changes in soil management more quickly than other soil variables. In this respect, the objective of this paper was to determine enzyme activity of the soil from USAMV – Bucharest orchard in order to evaluate its fertility.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Iulia Diana GLIGA, Madalina PRESECAN

The aim of this study is to determine the ecotop parameters used for restoration of degraded lands, which are not recommended to other uses. Afforestation reduces the extreme values of climatic factors (temperature, Evapotranspiration, wind speed): improves the air humidity and soil moister; and favors site conditions for maintaining herbaceous and forestry vegetation development. The decreasing of land degradation and the gradually restoration of productive capacity under the direct effect of forest cultures could be analyzed by variation of precipitation retention by canopy. The results regarding canopy retentions were obtained by placing in situ several rain gauges with height of 25 cm and 100 cm2. The precipitations retentions by canopy values were computed by the difference between the amount of rainfall recorded in open grounds and average values recorded at rain gauge installed in land cover with trees (in forest). Rains were grouped into classes, and the rainfall for each class being calculated as mean value of precipitation retained. The data obtained were highlighted with correlation between rainfall inside the forest and rainfall outside the forest. The curves of retention in the canopy layer were plot according to the height of rainfall and some characteristics of trees (species, age, consistency).The frequency of days with precipitation ranged from one month to another and from one season to another. The data set analyzed showed that rainfall triggered surface runoffs in seven day (5% of the total days computed). The slope of regression between monthly average rainfall index and the amount of rainfall previously recorded expresses an increase from a drought year to a rainy year. The average rainfalls per square meter inside the stand increased with the amount of rainfall quatity, the highest values were registered over 70 mm. Maximum discharge coefficients, determined by class of precipitation, highlighted the influence upon runoffs: the maximum value (0,219) being achieved by precipitation from 0 to 10 mm, although the maximum rainfall is obtained in the precipitation of more than 50 mm. Based on the computed data were determined regression equations between the runoffs amount and precipitation quantity, also, between rainfalls quantity and standard deviation of previous monthly.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Eren KARAKAVUZ

Air pollution by aerosol particles was evaluated in a site near BulentEcevitUniversityFarabi Campus in Zonguldak, TURKEY. The location was influenced by both road traffic emissions and domestic heating emissions. The experiment was done on January, 2015. Eight stage non-viable Andersen cascade ımpactor was used in the experiment. Collected particles were weighted and total particulate matter concentration was calculated 143g/m3 which is acceppted as “critical” in air pollution control regulations in TURKEY. Eight stage values were converted to PM10, PM2.5 and PM1 values. Aim of the work was to estimate the effect of airborne particles on human health. Collected particle

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Paul MARGINAS, Ervin SCHLESINGER

This project contains the designing of a precast reinforced concrete bridge on main forest road "Valea Rosie", km 1+110. The bridge will be sized for 2nd category of loading (according to STAS 3221-74) and it will be designed with one lane. The hydraulic capacity was determined after the flow hazard and river geomorphology. .It is necessary to size the main beams of the bridge to support the load, the bending moments and the oblique section of them. The deck size must be calculated to resist its own weight and the layers above it. There are differences between beam and deck design; the load being the common factor design for both. The final phase consists of predimensioning, designing and verification of abutment. The design process ends with determining optimal size in correlation with service the bridge is expected to provide.This project contains the designing of a precast reinforced concrete bridge on the "Valea Rosie" main forest road, km 1+110. The bridge will be sized for 2nd category of loading (according to STAS 3221-74) and it will be designed with one lane. The hydraulic capacity was determined based on the flow hazard and river geomorphology. It is necessary to size the main beams of the bridge so as to support the load, the bending moments and their oblique section. The deck size must be calculated to resist its own weight and the layers above it. There are differences between beam and deck design, the load being the common factor design for both. The final phase consists of predimensioning, designing and verification of abutment. The design process ends with determining the optimal size in correlation with service the bridge is expected to provide.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Dorin TATARU, Andreea STANCI

Through exploitation the coal are brought to the surface some of the radioactive elements in the earth's crust. Coal used in the process of Thermo-electric power station (CET) Paroseni produce from burning slag and ash, which is deposited in the Valley Caprisoara. It is known that, radioactive elements in the coal not burn and not oxidize, so that radioactive waste of ash is more concentrated. In this paper we propose to determine the distribution of radionuclides in ash and slag in deposits and surrounding areas. These measurements are necessary because the nature and energy of radiation emitted are conditional of ways the irradiation of organisms.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Cristina Iuliana TOMA

The present article is meant as a detailed presentation of the problems which can occur in the conversion of military sites into other centres, through entrepreneurship. The area looked into is located in Rimnicu Vilcea, where the University of Pitesti, after taking over a part of the original area, carries out some of its activities. This study is meant to be a criterion for sustainable development ,namely environmental, landscape restoration proposed by contributing to environmental quality improvement and pollution sources reduction by removing the aspect of "vacant land", degraded and untidy. The studied area has a surface area of 72820 square metres and there are 23 buildings on it. The land measurements have been made with specific topographic equipment: GPS SOUTH S86-T and Pentax total station W- 822NX, using RTK-kinematic method. The planimetric coordinate values have been registered for each point in the 70’s Stereo System. In order to identify the species of trees and shrubs resistant to environment and microclimate conditions, a small dendrologic study has been made. The plants have been planted as naturally as possible in order to fix the soil and to create a show of vegetation through foliage, colour and fragrance. Thanks to the chromatic change of the foliage, the thickness and transparency of the crown, the varied forms and volumes, the vegetation will ensure the variety of the lanscape, making the area more alive.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Alikemal TOPALOGLU

The recent studies regarding the membrane technologies indicate that the membrane process applications involve for providing the high quality drinking water and increasing the use of industrial water consumption. The membrane process has been used in applications such as wastewater treatment, industrial water production, water softening, and in the separation of compounds having different molecular weights. Of using in many membrane process Microfiltration (MF) and Ultra filtration (UF) are low pressure filtration processes that are used for pathogen and suspended solids removal as seen in many studies (Guo et al., 2010; Yang et al., 2014). In this study, we investigated the possibility of using microfiltration (MF) and ultrafiltration (UF) membrane systems for treatment of wastewater generated from underground hard coal mining of Kozlu Basin. In first stage of this study, the wastewater was treated using MF membrane filtration system. The MF membrane filtration system was composed of the flat sheet MF membrane module equipped with Polivinilflorid (PVDF) membranes purchased from MICRODYN-NADIR membranes, Germany. The MF membrane has a filter area of 140 cm2 and average pore diameter of 0.2 μm as given by supplier. In second stage of study, the effluents of MF were treated using UF membrane filtration. The UF membrane filtration system was composed of the flat sheet UF membrane module equipped with Polyethersulfone (PESH) membranes purchased from MICRODYN-NADIR membranes, Germany. The UF membrane has a filter area of 140 cm2 and molecular weight cut-offs (MWCOs) of 50 KDa as given by supplier. In the experimental study, the raw water was provided from discharge point of underground hard coal mining of Kozlu Basin. In order to determine the total treatment performance of the MF/UF system, water samples were taken from inlets and outlets of the MF and UF membrane systems, respectively. The pressures were fixed at 1 and 2.5 bars for MF and UF, respectively during the experimental study. In test of wastewater, total coliform, turbidity, conductivity, pH, nitrite, nitrate, phosphate, sulphate, sodium, potassium, chemical oxygen demand (COD), total suspended solids (TSS), calcium, magnesium and total hardness as parameters were analysed in raw and treated water. The results were compared with Turkish Standards (TS 266) and European Union (EC).

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Adela Eleonora VISAN, Mihaela RADU, Emine ISMAIL

As known, nowadays we are facing new ecological pressures, when land, water and clean air are not anymore regarded as infinite resources. As an example, in Bucharest, the current urban sprawl has begun to destroy the most valuable land and open-space resources. All along the Colentina river there is an impressive potential of creating green areas, but also new dwellings combined with peri-urban agriculture, not forgetting about heritage. All the 13 lakes have their own identities, but which are not fully taken care of. It can easily be noticed the lack of management of these lakes- the shores are in a bad condition, inaccessible, the water is far from being clean and, what is more, water pollution happens without any refrain. What we suggest is to design cycle tracks, walking paths, beach areas, sportive areas, decks, restaurants, greenways, community gardens, agricultural areas, all intelligently integrated in a econeighbourhood along Grivita lake. Also, reinforcing the shores and reassuring the continuity of the existing ecosystems are important aspects of our project. All in all, our aim is to tackle the social, economical and ecological issues all together. This would mean to rise the quality of living in the peripheral areas of Bucharest, create social mixity and also encourage the small commerce which is an extremely important aspect for the community

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Stefan Silvian CIOBANU

Collapsibility of the loess is strongly governed by water content and the magnitude of applied stress. Under an increasing load, the critical pressure at which collapse started to occur was greater for the loess with lower water content. At natural water content the critical pressure was greater than the overburden pressure. The greatest problem with collapsible soils arises when the existence and extent of the collapse potential are not recognized prior to construction. Settlements associated with development on untreated collapsible soils usually lead to expensive repairs. A comparative study between natural undisturbed and compacted samples of collapsible soils was performed. An attempt was made to relate the collapse potential to the initial moisture content.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Simona SBURATURA, Mihai Cristian MUSCALU, Ancuta BODIRLAU

In all seismic areas, local and state officials and prudent property owner, establish procedures to assess the safety of buildings and other important structures following a main seismic event. Such decisions, in most cases, are based on visual inspections of possible damage to the structure. If the structure appears damaged, it is necessary to further examine and assess as to whether the damage condition of the structure presents an unsafe environment for the occupants of that structure. If available, instrumental measurements of shaking of a building or a nearby ground site are very useful to decision makers. In this sense the paper present a method to assess the building safety of Reinforced Concrete structures using seismic records made by seismic station. Both dynamic analysis and processing/recording of seismic events are made using modern techniques and equipment existent in Reinforced Concrete Laboratory. Mention that seismic equipment for strong motion records belongs National Seismic Network for Construction of National Institute for Research and Development in Construction, Urban Planning and Sustainable Spatial Development.„URBAN-INCERC”, and equipment was installed here on the base of cooperation protocol signed by the two institutions. The paper results are conclusive and are discussed both on the charts and analytical results obtained. The activities of this research were conducted under the supervision of PhD. Claudiu-Sorin DRAGOMIR, Lecturer in the Department of Environment and Land Reclamation at the Faculty of Land Reclamation and Environment Engineering Faculty in Bucharest in Bucharest.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 3
Written by Adina CIOBANESCU, Georgiana DONE

The problem of wastewater treatment is an important issue for environmental protection. Businesses with different specific according to the law are required to carry wastewater treatment products. In the meat preparation units appear special problems . The case study shows solutions for removing nitrogen and phosphorus from meat preparation units and cold storage- Mogosoaia.

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  1. 3D MODELING OF A BUILDING FACADE
  2. CADASTRAL SURVEYS CONDUCTED WITHIN THE REPUBLIC OF MOLDOVA
  3. USING GIS TO HELP US MAKE BETTER DECISIONS ‐ MOUNTAIN DESTINATIONS
  4. ASPECTS CONCERNING TOPOGRAPHIC AND GEODETIC WORKS NECESSARY FOR DESIGNING AND DRAWING A CONSTRUCTION

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