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. XII
Written by Ernest Daniel OLINIC, Tatiana OLINIC, Adrian ANDRONIC

The shear strength parameters, internal friction angle (φ [°]) and cohesion (c [kPa]) represent derived values, according to the methodology of Eurocode 7 and NP 122. They are determined by processing the pairs of normal stress (σ) - tangential stress (τ) values resulted from direct shear or triaxial compression tests. The paper presents 5 methods of determining the characteristic values, following the direct processing of φ and c values or indirectly, by processing pairs of σ-τ values, resulted from direct shear tests. The characteristics values of shear strength parameters are required for the geotechnical design in the case of various geohazards and for foundation solution. A series of conclusions are drawn based on the legislation in force.

[Read full article] [Citation]

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Öner ÇETİN, Kıvanç Hayri DOĞANAY, Jovana BEZDAN

Global warming and climate change are the biggest problems of the world today. Agricultural irrigation plays a very important role in both increasing production and reducing the potential risk of drought. However, excessive use of water in agriculture (>10 000 m3 ha-1), very low irrigation efficiency (35-50%) and the effect of climate change cause a rapid decrease in water resources.In adaptation to climate change, efficient use of water resources in agricultural production, irrigation water productivity (kg m-3), economic productivity of water ($ m-3), farmers' net income ($ ha-1) and total water use (m3ha-1) should be considered for each irrigated area. Thus, both the farmers, the irrigation authority and the decision makers can choose to implement possible deficit irrigation strategies and/or the most effective water use strategies according to these parameters. Thus, the main categories might be identified under the sustainable resource management, water management, technological developments, farm management, and farm production practices. Adaptation strategies to climate change can be implemented, but the costs and benefits of these practices need to be well understood.

[Read full article] [Citation]

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Patricia MOCANU, Veronica IVANESCU, Mirela Alina SANDU

The paper aimed to present the main methodologies for estimating atmospheric emissions, with an example for a construction materials factory. It is based on the statistical data provided by a pre-dosed dry mortar factory, for which both the emissions specific to the limestone quarry where the raw material comes from, as well as the emissions from the manufacturing process, were analysed. The presented method, used for the elaboration of the emission inventory and not only, requires the use of specific emission factors for each emission-generating activity in an area or in a company. The method can be used for other purposes as well, including for calculating taxes to the Environmental Fund. Sometimes, due to legislative oversights or the impossibility of including a source in the existing list, it is up to the evaluator to choose the most correct approach.

[Read full article] [Citation]

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Adrian FILIP, Stefano CASADEI, Nicolae PETRESCU, Daniel DUNEA

This work presents an analysis of the evapotranspiration in the Arges River Basin, including a riparian system located near Dragomiresti village, using MODIS Global Terrestrial Evapotranspiration 8-Day Global (MOD16A2) at 500-m pixel resolution to assess the amount of water lost from the hydrologic budget. The period of coverage is 8 days during the vegetation season of the considered period (2015-2022). The geospatial analysis of the selected riparian systems was performed with ArcGIS Desktop 10.8.1 and Google Earth Engine. Arges River supplies water for several important Romanian cities, and thus, the rationale of this work relies on the characterization of evapotranspiration for potential better management. Riparian vegetation has multiple functions and provides a wide range of ecosystem services of which yields are directly influenced by the river basin's ecological status. Limiting anthropogenic disturbance is important for the health of lotic ecosystems. The utilization of MODIS does not provide fine-scale resolution (< 10 m), making it difficult to discriminate between phytosociological associations at a small scale and thus establish the riparian systems’ typology and associated vegetation indicators. Downscaling and data fusion methods will be further explored.

[Read full article] [Citation]

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Maxim ARSENI, Octavian ROMAN, Madalina CALMUC, Valentina-Andreea CALMUC, Adrian ROSU, Stefan-Mihai PETREA, Catalina ITICESCU, Lucian-Puiu GEORGESCU

LiDAR is one of the most promising technologies in the forestry industry. The LiDAR scanning methods help to improve and to drive sustainable forest management. The main purpose of this paper is to apply the UAV LiDAR scanning method, to identify and measure the tree volume calculation along a road section. The flight was made using a UAV octocopter and a LiAir LiDAR system. To determine the forestry volume several steps of postprocessing were applied. Therefore we create a 3D point cloud reconstruction of large forest areas. After the preliminary post-process, we apply a segmentation for the study area and track individual trees, to create an inventory for the detected trees. Determining the tree volume helps to make a correct financial estimation of the elimination of this from a new road or area that changes its destination. On the overhand, automated methods like LiDAR scanning of forestry and terrain, and automated tree volume calculation helps to improve the time spent confronted with traditional taxation methods.

[Read full article] [Citation]

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Velika KUNEVA, Manol DALLEV

The purpose of the development is to present an option for reducing costs in the delivery of ornamental plants to nurseries. The nursery is located in the town of Parvomai and is located in the eastern part of the Plovdiv region, in the Thracian plain, at about 134 meters above sea level. Different varieties of flowers are produced in it – petunias, violets, verbena, tagetis, sakezets and other species. The nursery stocks and delivers goods to 5 small sites in the surrounding area To achieve the goal, the following tasks must be solved: to characterize the used vehicles; to optimize transport costs by solving a transport task under certain conditions. By using MS Excel Solver, proposed algorithm for describing a transport task and its subsequent solution, significantly speeds up the calculation procedures and helps to reduce costs when making deliveries.

[Read full article] [Citation]

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Stefan Florin BALAN, Bogdan Felix APOSTOL, Anton DANET

There is a need for safer constructed medium in order to respond to the constant necessity for raising the security level of human society to earthquakes impact. In this respect the buildings monitoring in areas subjected to seismic site effects provides the possibility of getting immediate and reliable information on the status of certain structures, which enables decision makers to better allocate resources and to direct rescue operations. A procedure is implemented, which allows to perform real-time data acquisition, data exchange and data analysis from structures exposed to seismic excitation or under ambient vibration. The processed recordings are used to deliver information in real time about the seismic event. Engineering seismology parameters are computed: maximum acceleration, spectral acceleration, corresponding oscillation periods, etc., on both structures and free field. The output is conceived as a standard report on the characteristic response of the instrumented building. In the paper such an approach is described in an extended and thoroughly version, for two instrumented buildings, located in different areas, under the last year’s strongest seismic event of 2022.11.03, Mw = 5 that hit the Romanian territory.

[Read full article] [Citation]

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Elvira GREBENIȘAN, Andreea HEGYI, Adrian-Victor LĂZĂRESCU

The development of biofilms of micro-organisms on the surface of buildings, in addition to the negative impact and risk to the health of the population, leads to their degradation and the need for continuous sanitation operations. Inducing superhydrophilicity and self-cleaning performance of cement surfaces by adding TiO2 nanoparticles to the composite matrix, as a result of photoactivation reactio. This method, can become an effective for the production of new materials in order to increase the durability of buildings and to increase the degree of hygiene, due to the ability of these new materials to inhibit the growth of microorganisms. Experimental results have shown that in case of contamination with two types of moulds (Aspergillus niger, Penicillium notatum) and four types of bacteria (Escherichia Coli, Pseudomonas Aeruginosa, Staphylococus Aureus, Streptococus Pyogenes) respectively, the development of harmful biofilm is inhibited. This performance was monitored using the dimensional development of the specific inhibition halo as a quantifiable indicator. It can be said that it is influenced by the type of contaminant and the nanoparticle content of the cementitious composite matrix, but is manifested in all cementitious composites containing TiO2 nanoparticles photoactivated under laboratory conditions.

[Read full article] [Citation]

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Petya GENKOVA, Vera STEFANOVA, Manol DALLEV

The fertility of the soil depends on its conditions, which are quantitatively expressed through its properties of porosity, density and humidity. The change in these properties is due to its structural construction and the environmental impacts. A part of the soil is damaged by heavy metals, improper fertilization and threatened by erosion. In this research proposal, innovative working bodies will be investigated for soil treatment, with the aim of managing the aggregate composition and predicting fragmentation, to protect it from erosion. The aim of the study is to application of GIS investigate innovative working bodies with active drive, to achieve a higher quality of surface tillage taking into account the existing external and controllable factors. Statistical processing of the results and optimization lead to the various operating modes of a machine to achieve the main idea and the resulting soil fragmentation regression equations are entered into a GIS environment. The Surface soil treatment is managed by GIS tools for variety visualization and presented statistically the most suitable information. The implementation of working bodies in practice will enrich the soil fragmentation data base, which leads to a greater choice of tillage bodies for soil erosion control.

[Read full article] [Citation]

Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XII
Written by Dragoș DRĂCEA, Augustina Sandina TRONAC, Sebastian MUSTAȚĂ

The paper aims to have a look over the energy production over the time, and its specific nowadays, with the desire to find alternative solutions, but taking into account the specifics of the way in which irrigation systems and schemes in Romania are structured and used, and watering methods are distributed according to the plants, over the territory. Analysing the Romanian Energy System for 2 different periods (winter and summer) and the distribution the energy sources, there are comparisons between the evolution of energy production and energy needed for irrigation. In that manner it is possible to conclude if and when solar energy has efficient utilization.

[Read full article] [Citation]

Page 1 of 7

Find Article

Useful Links
Faculty Of Land Reclamation And Environment Engineering Bucharest 


University of Agronomic Sciences and Veterinary Medicine of Bucharest


Agriculture for Life International Conference

 

Other publications of University of Agronomic Sciences and Veterinary Medicine of Bucharest

 

More links here

The publisher is not responsible for the opinions published in the Volume. They represent the authors’ point of view.

© 2019 SCIENTIFIC PAPERS LAND RECLAMATION, EARTH OBSERVATION & SURVEYING, ENVIRONMENTAL ENGINEERING. All Rights Reserved. To be cited: SCIENTIFIC PAPERS LAND RECLAMATION, EARTH OBSERVATION & SURVEYING, ENVIRONMENTAL ENGINEERING.

Powered by INTELIDEV

Land reclamation Journal