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. XIII
Written by Daniela DOBRE, Claudiu-Sorin DRAGOMIR, Cornelia-Florentina DOBRESCU, Iolanda-Gabriela CRAIFALEANU, Emil-Sever GEORGESCU, Marta-Cristina ZAHARIA

In Romania, there are several legislative guidelines regarding the activity of seismic instrumentation/monitoring, which can support this activity in a coherent and effective way (Seismic Design Code, P 100-1/2013, Annex A). The monitoring of the Faculty of Biotechnology building is carried out using 3 Granite triaxial sensors, arranged one each on the top, in the basement and in the free-field. For each of the recordings, the Fourier spectrum, also response and power spectrum, can be represented, using different options related to axes, corrections etc. The processing of the records leads to the determination of the instantaneous maximum values of the accelerations, velocities, displacements. A comparative analysis over time will be presented for the level of vibrations recorded and for the frequency range obtained in free-field, basement, top conditions, as well as an analysis of vibrations from an ambient comfort point of view. Beyond the legislative aspects, this activity responds to the need to know both the characteristics of earthquakes and the structural characteristics of the building.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Ghiţă Cristian CRAINIC, Flavius IRIMIE, Flavia Mălina CIOFLAN, Sorin Lucian DOROG, Călin Ioan IOVAN, Eugenia ŞERBAN

The extreme meteorological phenomena, from the date of 17 09 2017, caused a series of destructions especially in the deciduous stands within the Sudrigiu Forest District, Bihor Forest Department stands, in the western part of the country. As a result, a number of stands of species from the deciduous group were affected in the Văratec Forest Management Unit (FMU) VII, with reported windfalls and wind breaks, on compact surfaces of approximately 929 hectares. The volume of the affected trees, which was inventoried as accidental products, is about 94,000 m3. The appearance of these by-products seriously disrupted the management of the stands in the affected forest units, causing a series of major disruptions in the valorization process of the main and secondary wood products, with major implications on the regeneration process of the deciduous stands, which was in progress, at that moment. Although substantial amounts of money were recorded during the valorization of accidental wood products, a relatively high percentage of the wood was depreciated and was not recovered at a level corresponding to the main wood products.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Oana Alina NIŢU, Emanuela JERCA, Elene Ştefania IVAN, Marinela GHEORGHE

The NFT (Nutrient Film Technique) technology is one of the hydroponic methods used for cultivating plants, including lettuce. In this system, the plant roots are suspended in a continuous flow of nutrient solution, which is pumped through an inclined channel or a thin tray. This thin flow of nutrient solution allows the roots to receive essential nutrients such as nitrogen, phosphorus, and potassium, along with other necessary substances for healthy plant growth. The system utilizes a minimal amount of water because the water and nutrients are constantly recirculated within the system, thus reducing waste and the need for irrigation. By precisely monitoring and adjusting the composition of the nutrient solution, growers can ensure that plants receive the optimal amount of nutrients to grow healthily and produce quality yields.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Bogdan ERGHELEGIU, Mirela Alina SANDU, Daniela IORDAN

Sound waves are mechanical waves in the longitudinal direction that propagate in a variety of solid or gaseous media. The medium for the propagation of sound waves is the atmospheric environment. This medium consists of particles which are influenced by environmental conditions. The purpose of this paper is to show that atmospheric temperature can have an effect on the speed of propagation of sound waves. The measurements on which the study is based were made in the same areas and at the same time intervals, under the same atmospheric conditions, during periods of high and low temperature. The results confirm that the speed of sound waves is influenced by the parameters of the environment in which they propagate. The speed of sound is faster when temperatures are higher.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Lavinia TATARU, Florian STĂTESCU, Nicolae MARCOIE

The analysis of the evolution of water quality parameters over time is of interest to researchers and authorities because it provides information on long-term changes in the river basin and allows the evaluation of the effectiveness of pollution control measures in the context of national and international commitments. This study describes eutrophication as a process of degradation of Lake Kortowskie, Poland, summarizes the effects of lake hypolimnion discharge on the water quality of the Kortówka River, and presents, in tabular form, the statistical principles specific to factor analysis (ANOVA). Water quality was assessed by comparing temperature, pH, changes in oxygen concentration (DO), conductivity (EC) and redox potential (ORP) before the experiment, during and after the experiment.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Mihaita Nicolae ARDELEANU, Emil Mihail DIACONU, Otilia NEDELCU, Sorin IONITESCU

The carbon footprint is inherent in any production process, even more so in the case of the production of batteries for the storage of electrical energy. The structure of the photovoltaic (PV) energy system determines the initial investment and, with it, the way of exploitation of the storage elements is outlined. The idea of reducing the investment usually determines an intensive exploitation of the batteries, which leads to the shortening of their exploitation period and implicitly their replacement with new ones. In addition to the problem of fitting the new batteries to the group of existing ones, it goes without saying that their purchase involves another manufacturing exercise that inherently requires a new carbon footprint. By optimizing the way batteries are used, their life is extended up to double, which means that the environmental impact of the production process is halved. The simulation exercise carried out, based on the concrete data provided by the specialized literature and the data of the LIFEPO4 battery manufacturers, demonstrated that it is possible to reduce the mentioned carbon footprint through an optimal structuring of the PV system starting from the very initial investment.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Cornel Cristian TEREŞNEU

In this paper, a topographical survey was carried out and the resulting data were processed for the development of the Zănoaga area in Bran, as a multifunctional sports complex. For the existing ski slope, all field data were collected, and a corresponding database was constructed. For the rest of the area, a comprehensive survey was conducted to establish the routes for a summer toboggan run, a tubing installation, and a bike trail (with multiple variants). A ComNav T300 GNSS equipment was used. Field data were initially processed in AutoCAD Civil 3D and then imported into ArcGIS. In this latter program, the initial 3D profile, and the possible profiles for optimal operation of the mentioned facilities were created. A program model was built in GIS through which the user can choose the suitable slope according to their experience, and the construction mode of the summer slope was simulated, based on projected speed.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Carlo Marius DRAGOMIR, Simona-Maria ILIE, Mariana-Atena POIANA, Corina Dana MISCA, Ileana COCAN, Delia-Gabriela DUMBRAVĂ, Camelia MOLDOVAN, Viorica-Mirela POPA, Carmen Daniela PETCU, Claudia ROMAN, Diana-Nicoleta RABA

Food symbols, along with other important values in different aspects of life, individualize Romanian folk culture in relation to other cultures. Research in the field of traditional Romanian food has increased greatly in last year’s resulting in many books, studies and articles that approach the changing complexities of taste and the world of food and its cooking. In this paper are presented the main traditional Romanian culinary practices in the context of their historical and cultural characteristics. Results of the study shown that, Romania is noted for many traditional foods and drinks. Romanian culinary practices are mainly determined by regional distinctions. In last years, because of industrialization, Romanian culinary practices have undergone a general trend of transformation and alignment to the imposed production and distribution standards, society has witnessed undermining of traditional food cultures.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Petar KISYOV

Positive Energy Buildings and neighbourhoods are having an important role in the clean energy transition and cities' green energy system transformation. The aim of this paper is to design and evaluate a scenario for the transformation of a single administrative public building located in Plovdiv, Bulgaria into Positive Energy Building. This is achieved through the implementation of set of passive and technological measures, including renewable power, so to decrease building's demand and to fully electrify it and finally to cover buildings total energy demand by renewable mean. This work evaluates the efficiency, impact, investment costs and rate of return of a number of energy conservation measures being designed to be applied. Finally, techno-economic analysis and results are discussed and compared.

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Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Octav-Mihai CISMAȘIU, Ioan OROIAN, Marcel DÎRJA, Cristian IEDERAN, Antonia ODAGIU

In this article we analyse the evolution of the grapes yield and their sugar content belonging to "Fetească Regală" vineyard variety cultivated in climatic conditions of Transylvanian region, Romania, covering the time period 2020–2022. In each experimental year, daily temperatures and precipitations were recorded during the grapevine vegetation period. Grapevine yield and sugar content was recorded at the end of each vegetation period. Averages were calculated yearly and by entire experimental period. Descriptive statistics and multi regression approach were implemented to calculate de averages, dispersion parameters, significance of differences, and relationships between the climatic factors and production traits. Overall datasets concerning grapes yields and their sugar content expressed a normal distribution. Our study emphasizes that precipitations have low influence on grapes yields and their sugar content, while temperature is positively associated with both above mentioned quantitative traits. When expressed by experimental years, increased temperatures led to higher yields and sugar content, significant differences are reported among yearly values.

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