ISSN 2285-6064, ISSN CD-ROM 2285-6072, ISSN-L 2285-6064, Online ISSN 2393-5138
 

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. II
Written by Florin MARACINEANU, Elena CONSTANTIN, Serban-Dan ROSULESCU

Landslides are a major degradation form of the natural environment with significant economic and social problems that affect all areas of earth slopes. In Romania, these processes are more intense in the Curvature Sub-Carpathians from Vrancea County to Vâlcea County. This paper presents the causes and forms of mass movements on slopes and customizes these problems for a slide area at the Olanesti river basin.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. II
Written by Daniela IORDAN, Bogdan MUNTEANU, Ionut ENI

Cadastre is a system of registering land properties based on a cadastral plan, ownership documents and a fair tax system. To achieve general cadastre is a desideratum even since 1991, starting with the Law 18, regarding the retrocession of the farm land. When Law 7/1996 was released the achieving of cadastre was taken into account also. The cadastral registration has 2 types now: sporadic and systematic There are similarities and differences related to technical procedures and legal documents registration between the two types .

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. II
Written by Claudiu-Sorin DRAGOMIR, Andreea DUTU, Ioan-Sorin BORCIA

At present, earthquake engineering can take advantage, among others, of the modern consolidated technique, namely “seismic base isolation”. Base isolation is a technique that is easily enforceable in the case of buildings or other structures of new building, but it can also be used for the ”strengthening” of already existing buildings. This technique has been often used with success, first in New Zeeland and USA, and now also in Italy, Japan, and other countries. The main objective of paper is to analyze the dynamic response of base isolation system under specific localseismic conditions. Local seismic conditions were established on the base of Vrancea earthquake records obtained during strong Vrancea earthquakes in 1977, 1986 and 1990. As results of this analysis at the end of paper are presented pros and cons for applying the strengthening methods to buildings located in Bucharest. The most important aspect is that high amplifications are present in response spectra of relative displacements at long periods. For this seismic local condition are very difficult to design an effective base isolation system.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. II
Written by Florin MARACINEANU, Elena CONSTANTIN, Neculai DOGARU

The studied area has a potentially favourable rural agricultural economy whose recovery is increased by the environmental characteristics whose annual growth does not meet the requirements of agricultural technology. The analysis of the natural factors has resulted in determining the stress level imposed upon the crops, which can lead to human intervention so that the environmental conditions should match the farming conditions. For this purpose, we should develop facility improvement programmes and appropriate measures.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. II
Written by Daniela IORDAN, Florin DUMITRU, Mihai COMAN

Distance reduction is a very important operation for cadastral and topographic works. Reduced distances are used both for determination of support network points and determination of detailed points. The formulas for distance reduction should be used correctly, otherwise can lead to very large positioning errors. For these reasons overlapping of parcels measured for tabulated can occur. Apparently the overlapping are real, but actually they are virtual overlapping, due to incorrect usage of formulas.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. II
Written by Delia DIMITRIU

This paper identifies new areas regarding research on sustainable agriculture, assessing the status on sustainability (environmental-social and economic aspects) of the Romanian agriculture sector. The agricultural land reform has influence on agricultural sustainability, as it led to land fragmentation, as the efficiency was not a primary concern. To understand better the sustainability, case studies can increase knowledge of the ecological importance of certain agricultural management practices and can also draw attention to rural development, to other socio-economic factors. The environmental awareness of farmers, measured by means of agri-environmental indicators is an important aspect to be assessed. The types of crops, including those that compete to food (i.e. biomass to biofuel) and the degree of fragmentation of land parcels are important factors to be considered. Also, the marginal land, and contaminated one are additional factors to research, as well as areas for policy investigation.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. II
Written by Adriana MUNTEAN, Mirela COMAN, Teodor RUSU

Depression of the Baia Mare is known like an area strongly affected by the mining activities performed here the centuries.These activities have generated important polluted areas, which even today, are subject directly to the pollutant impact. This paper presents the results of research conducted in the experimental plots, located near the tailing ponds, from the west part of Baia Mare. The chemical analyses conducted at the beginning of the study showed a small content of the total nitrogen, a high content of micro nutrients – copper, manganese and zinc, and specific pollutant – lead, and acidic reaction of the soil. Differentiated fertilisations applied, does not demonstrates that this fact affect the mobilization and accessibility of the four metals and indicating therefore, the possibility to be translocated in the throphic chain soil-plant-human. The study demonstrates the needs to implement urgent measures for environmental remediation of these soils to restore agricultural capacity of these soils.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. II
Written by Bianca-Elena BADULESCU, Raluca-Margareta MANEA, Ionut SANDRIC

GIS – Geographical Information System is currently the most used tool for analyzing and presenting spatial digital data of various sources. This paper aims to present the use of 3D GIS for properties inventory for the Campus of USAMVB. The used sources were provided by local authorities and public institutions, and consist of plans and topographic maps, orthophotos and cadastral plans. This article is focused on the application of GIS tools in the process of data processing for the needs of campus information. The data was processed as follows: digitizing maps and data extraction from orthophotos by image interpretation, field data collection, GIS database design and implementation, a 3D analysis and a virtual reality model demonstration. It will be presented the three-dimensional data acquisition and the modelling and reconstruction method for objects with realistic visualization. Obtained data from the output maps will be for users more friendly, more readable, more recent and accessible. Through the web interface will be easier for the users to get the required information.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. II
Written by Rubén Agregán PÉREZ, Ana TORRADO AGRASAR, Lorenzo PASTRANA CASTRO, Nelson PÉREZ GUERRA

Batch productions of nisin by Lactococcus lactis subsp. lactis CECT 539 and pediocin by Pediococcus acidilactici NRRL B-5627 were firstly investigated in MRS broth and in both deproteinized diluted (DDW) and concentrated(DCW) whey. Although both strains produced the higher amounts of biomass and bacteriocin titres on MRS broth, the productions on DDW were higher than on DCW. Therefore, the following experiment was focused on the optimization of the composition of DDW medium, by using factorial experiments and empirical modelling to study the effects of total sugar (lactose), nitrogen (glycine), phosphorous (KH2PO4) and buffer (potassium hydrogen phthalate–NaOH) concentrations on nisin and pediocin productions. The increase in buffer concentration led to a decrease in the production of both bacteriocins, and the supplements with lactose, glycine and KH2PO4 did not improve nisin and pedicoin productions. Therefore, in an attempt for increasing bacteriocin production in DDW medium, both L. lactis CECT 539 and Ped. acidilactici NRRL B-5627 were grown in DDW media supplemented with lactose and four different nitrogen sources. Glycine and NH4Cl were not good nitrogen sources, but the use of high concentrations of yeast extract and Casitone highly stimulated the production of both bacteriocins. Since the use of these two complex nitrogen sources could be very expensive for bacteriocin production at a high scale, the production of bacteriocins and antibacterial factors by the two lactic acid bacteria was studied in DDW media by using re-alkalized fed-batch fermentations. These fermentations were mainly characterized with higher biomass andbacteriocin productions compared with the batch process in DDW medium and with the production of mixed acid metabolites (acetic acid, butane-2,3-diol and ethanol). We also studied the fermentation kinetics of kefir grains CIDCA AGK1 on unbuffered and buffered DDW medium. In these studies, the highest levels of free biomass, lactic acid and acetic acid were obtained in the buffered medium. Subsequently, the effect of nitrogen and phosphorous supplementation on free biomass, lactic acid and acetic acid was studied in buffered DDW medium using factorial experiments and empirical modelling. Finally, the effect of agitation and aeration on the production of the three variables was studied by using the optimized DDW medium obtained in the latter experiment.

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