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. 5
Written by Halil Burak ERTÜRK, Nizamettin ÖZDOĞAN

In recent years, urbanization, industrialization, population, domestic and industrial productions are increasing. However, organic and inorganic wastes are released into the ecosystem. Mining, urban or industrial solid, gas and liquid waste, pesticide and artificial fertilizer use, paint industry and car exhaust gases cause excessive release of heavy metals in nature. Some activities of heavy metals accumulate in there sulting soil. This accumulation is not just about soil and ecosystem. At the same time affects the food chain also human and animal health. These polluted soils are the most difficult work in terms of environmental engineering. The high costs of clean-up activities of contaminated soil have limited the use of classical disposal technologies limited.
Environmental engineers have also developed phytoremediation and bioremediation techniques to remove these toxic elements. The phytoremediation technique is more preferrable in this field, because of its environmental friendly properties and cost.The ability of hyperacumulator plants to absorb large amounts of toxic elements in their bodies mad ethese plant spreferrable in clean up activities. One of the most important advantages of the phytoremedical technique is that it provides in-situtreatment and it requires very few extra efforts to remove the pollution. In addition, phytoremediation does not harm natural resources. However, the phytoremediation technique can only be use in shallow regions in water, soil and sediment. Another short coming of their technique is that plants can not show their efficacy in very short time in highly polluted areas. For this reason, the phytoremediation technique can only be used at low levels of contaminated sites. In this review, the effects of heavy metals in the soil, the applications of the phytoremediation technique to remove heavy metals from the soil and the prosandcons of these methods have been studied.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Lazar FLAMIND, Maria-Olivia MOLDOVAN

The study's purpose is to determine the physico-chemical characteristics of soil (granulometry, organic substance, pH, humidity), the samples being gathered from three different areas regarding the internal zoning, but similar regarding the altitude, the aspect, the slope and the type of vegetation. The sample A1 from the strictly protected zone, the resort Corongis, is the control sample.
The granulometric analysis has been realized by using the Kacinski method. The soil’s humidity (W) has been determined by drying in a stove at 105˚ C, the pH has been determined by using the Glass electrode method and the organic substance has been determined by using the Calcination method.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Alexandra-Maria GEORGESCU, Andreea DESPA

A novelty of our time is that humanity faces a global phenomenon whose consequences are still hard to assess by scientists, this phenomenon is global warming. Some people still doubt its existence however not only is it a real event but it is much more complex and urgent than it is considered to be. In the following reference we will evaluate if the phenomenon is favourable, dangerous or neutral for the global ecosystem. The idea of saving the planet may seem utopian, but it is necessary to think about the need to maintain a stable and beneficial climate in order to have an ideal habitat for human beings for as long as possible.
In this reference we also intend to describe the "fight" between those involved in climate campaigns versus climate skeptics / industrial groups. The ultimate goal would be to influence the audience and implicit, on climate policy making.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Iulia Diana GLIGA, Maxim COROCHII, Maria-Olivia MOLDOVAN

The river deposits transportation prognosis is required to draft the improvement planning of the torrential hydrographic basin, considering that the basin torrential potential shall be established based on this hydrological dimension, together with the retention capacity of the transversal hydro-technical works and with an estimation of the hydrological and anti-erosion efficiency of all the measures and works which are to be applied within the basin. The hydrographic network of the torrential basin Gurghiu is mostly dominated by the river deposits erosion and transportation. In order to calculate the annual average transportation the method advanced by R.Gaspar and by A. Apostol was used, a method which is conceived for the specificity of the torrential basins of our country. To draw a conclusion, based on the previously made calculations, the annual volume of the basin river deposits is of 130 m3/year. The bank deposits retention in the earthworks shall determine a stabilization of the river beds in the hydrographic works emplacement region, thus reducing its slope and depositing the alluvial deposits quantities.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Beata KACZMAREK, Ewelina WERNER

The aim of this article is to present possibility of use of a metal detector, homing objects by generating a magnetic field, to identify unknown mass graves from the time World War I and World War II.
Mass graves are usually located in difficult, usually wooded area. Therefore they are inaccessible to the majority of archaeological methods such as aerial photography. Detecting the mass graves using a detector in this case is the best solution, because inside the graves are often found metal knives, buttons from uniforms, badges, or other such items.
For the prospecting research will be helpful VLF model which after appropriate setting detects a specific kind of metal.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Elena MARICA

Noise pollution is neglected in schools, although it can cause multiple effects on students and teachers. This article will be presented potential sources of noise that affect the smooth conduct of classes, methods of measuring noise pollution, methods of combating this type of pollution, then I will briefly effects that may occur on the health staff in institutions education.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Andrei Iulian MIHALACHE, Iosua Andrei PANTEA, Catalina Georgiana LEAHU

Topo-geodetic methods are in many cases the only one methods allowing the absolute determination of the size and direction of the movement of a building or area of land with constructions as well as the determination of the movements and deformation made by other methods.The monitoring of constructions on a timeline is a very complex process, which requires a rigorous planning. In order to be able to diagnose, it is necessary to analyze thoroughly the characteristics of the structure. The paper aimed to present this paper the process of monitoring Agigea is the first cable-stayed bridge made in Romania, and until 2002, span over waterway 162.5 meters was the highest road bridge span from country. Cable-stayed structure is 246.65 meters long.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Ştefan PETRESCU, Roxana MUSTĂŢEA, Iosif NICORICI

In horticulture, recent technological advances has inevitably led to studies and research conducted on plants interactions with the environment, and further to the development of new theories and assumptions regarding the plants ‚senses’. A large part of the experiments conducted worldwide represents those that aim to understand the effects of music on plant growth, in various stages of development. In this context, the present paper aims to describe the influence of different types of music on the germination of Beta vulgaris L.var.cicla L. seeds. The seeds were divided into three groups (five seeds in each group), one subject to the experimentation and two control groups. Two control groups were chosen in order to establish if any differences could be noticed according to their proximity to the music source. The observations were taken twice a day, for 28 days, the total period of the experiment. Notes, photos, measurements for a better and fair description of the experiment have been taken. The results where rather unpredictable, proving the effect of music on plants in an unexpected way.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Mihai Adrian RACHIERU, Irina IACOB, Maria CRISTEA

The positive effect of music not only on humans, but also on animals and plants is well known for a long time, being used in music therapy. Studies have shown that a harmonious musical concert stimulates songbirds from forests. Moreover, monkeys, depending on the nature of music they listen to, could cheer or fall into melancholy. If music is a mean of relaxation or even healing for people, which is its effect on plants? The current paper aims at answering this question, by presenting the results of an experiment that studied the biological effects of different genres of music on the wheat plants growth. The Triticumaestivum seeds were placed into three pots and the humidity, temperature and damping program were kept constant. One of the pot was set as the control group, the other two being subjected to the following musical compositions: Havasi - Rise of the instruments and Led Zeppelin’s tracks for 2 and a half hours a day. The experiment lasted 6 weeks, during which plants height was measured weekly and change in leaves color was visually estimated. The obtained results were in accordance with the literature data: both classical and rock music affect living biological systems, those exposed to classical music being higher and brighter than either the control group or those exposed to rock music.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Luiza-Cecilia SPIRIDON, Denisa Elena-Maria POPOCEA, Mihaela-Andreea SOLOMON

This article aims to present the multiple perspectives that compete in defining public perception over global warming and the impact that several endogoenous and/or exogenous factors have on it. Due to the overwhelming amount of existing information, often conflicting and vague,we have confined ourselvesto try to identify common patterns - elements and differences in the discourse on global warming of different actors that have agreat impact on public opinion. We consulted materials provided by scientists, activists, politicians and public media and we have also aligned ourselves to previous research and studies on the controversy aroused by the subject of global warming in order to better graspthe complex relation between existing arguments and counterarguments and how theyaffect public opinion. In the conclusion section, we bring to attention some of the most relevant factors of confusion and misinterpretation that we have identified as leading to a continous dynamic of the public perception over global warming, thus contributing to a general state of confusion and insecurity.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Robert STAN, George TOMA, Cătălin RADU

This article is based on a scientific report made by the Intergovernmental Panel on Climate Change of the European Commission. The information in the report shows that global warming is still ongoing and its effects are becoming clearer from year to year. It is good to know these things, but it is important to understand the causes: people are the main cause of climate change; less ice means more heat and the growing level of carbon dioxide in atmosphere has bewildering effects on creatures of seas and oceans. We bring into question the opinion of some political figures who are or have been skeptical about the warnings of scientists. In conclusion, the present paper doesn’t aim to form a general opinion, but rather to stimulate a debate.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Dorin TATARU, Andreea Cristina TATARU

The water is an indispensable factor of life and also has an important role in ecological balance and its pollution is a serious problem with the current population. The water pollution is altering the physical, chemical and biological characteristics of their being produced directly or indirectly, natural or man-made, the polluted water is unfit for normal use. One of the most important properties of water, in addition to temperature, color and electrical conductivity, is turbidity. In this paper we present a method of determination of turbidity and electrical conductivity. The method is based on the measurement of luminous intensity weakening which passed through a liquid containing suspended solid particles are absorbed or released. Following these measurements can be verified and determination the degree of pollution and what are major pollution sources

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 5
Written by Vasile TIGANASU

The water system from arboretum is part of a complex project of landscaping (improvement) into the University of Agronomical Sciences and Veterinary Medicine of Bucharest (UASVMB) campus area. The aim is to valorise the park by harmonizing the natural space with the anthropogenic one. The water system consists of two reservoirs at different levels. Those are connected by a channel with a trapezoidal section and a pipeline that transports the water from the downstream lake to the upstream lake using a pump for water recirculation. The lack of natural water sources and the local soil high permeability imposed a waterproofing solution in order to reduce water loss. The channel path intersects an alley used by pedestrians and having auto traffic. For overpass it, there was built a bridge of reinforced concrete. The project in its entirety improves the landscape and social life of both students and employees of UASVMB and also of the people who visit the park for recreation.

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

The paper aims to present the present situation and trends for evolution of packaging waste recycling in the town of Bucharest, as a model for the entire urban waste management system in Romania. The statistical data for our country and European ones entitle me to propose some simple solution to improve the process.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Andrei DÂRLEA, Mihaela SOPONAR, Andreea TATARU

The paper presents some elements in the analysis of noise exposure, presenting the phenomenon of noise pollution, its sources and its harmful effects. The purpose of this paper is to analyze road traffic noise, the most widespread source of noise pollution in urban areas. The object of this research is the analysis of noise recorded at major road crossings in Petrosani using a multimeter. The results of the measurements are plotted and interpreted.

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Corina DUMITRACHE, Mihai FRINCU, Stefania ILA, Ana-Maria GODEANU

The purpose of this study was to investigate the hygiene from one Student House Of Agronomical University Camp by evaluation of airborne microflora from 12 rooms (total air cubing: 480 m3). The degree of microbiological contamination of indoor air was checked by monitoring of 60 surface samples and 36 air samples. Qualitative analysis of indoor air and surfaces that might contain microorganisms was made by identifying colonies on Petri plate with solid culture specific to bacteria and molds. The results regarding microbes from indoor air presented fairly large variations from one room to another (from less than 100 CFU/m3 to slightly above 2000 CFU/m3), but in no one inverstigated space have been exceeding the admitted limit (2500 CFU/m3).

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Published in Scientific Papers. Series "Journal of Young Scientist", Vol. 4
Written by Mihai FRINCU, Corina DUMITRACHE

The aim of this paper was to understand how nitrogen cycle evolving through early experimental aquaponic system due to growth of nitrification bacteria such as Nitrozomonas and Nitrobacter. In this respect, it was design an aquaculture system, with different composition of fish species: Carassius auratus (10 pieces) and Hypostomus plecostomus (2 pieces). After we’ve found that the nitrogen cycle was established, we’ve chosen the suitable plants for the hydroponic system. The fishes were fed by organic meal; it was used a feeding rate ratio for design calculations of (0,6 grams /day) and the feed input was kept relatively constant. The pH was controlled on a daily basis (pH was maintained constant by addition of calcium carbonate) and oxygen dissolved (that has been kept constant by using a proper pump). Nitrogen forms (ammonium - NH4, nitrite - NO2 and nitrate - NO3) were determined on a daily basis as well and in the same time with pH measurement, in order to make correlations between evolution of nitrogen concentrations and nitrification bacteria growths. After 30 days of experiment it was found that ammonium - NH4 concentrations are directly and significantly correlated with nitrite -NO2 concentrations (the Pearson correlation factor is r = 0.74). It means that Nitrosomonas bacteria formed an effective biofilm. After 10 days from initiation of aquaculture experiment we also observed that nitrate concentrations values are correlated with nitrites concentrations values (which demonstrates the Nitrobacter growing). The correlation coefficient is negative (r = - 0.75) because in the absence of plants, the nitrates were accumulated in water. In conclusion, according to experimental data, the ammonium- NH4 and nitrite -NO2 concentrations are stabilized after 30 days, reaching values which are lower than legislation in force imposing.

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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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