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Author publications

A. Radu

17 linked publication records

Author: A. RaduYear: 2017clear all
Showing 1-17 of 17 records
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SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

AN ECONOMIC LOCAL RESEARCH BASED ON FORESTRY ACTIVITIES IN SUCEAVA COUNTY

(STEF92 Technology, 2017-11-20, Student Ana-Maria Ciobotaru, Ion Andronache, Student Roxana-Andreea Radu)

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The article presents the exposure of forestry activities in the most deforested counties of Romania пїЅ Suceava County. We have conducted a local economic research based on the forestry activities from that county. The database used in this research consists from the National Classification of the Economic Activities, codes at 4-digit level for each territorial administrative unit. The article focuses on the particular situation from the deforested communes: CпїЅrlibaba, Poiana Stampei, Iacobeni. It also presents ...

Forest Ecosystems2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

CALCIUM OXALATE CRYSTALS IN THE ROOTS OF MERLOT/KOBER 5BB GRAPEVINES FROM MURFATLAR VINEYARD

(STEF92 Technology, 2017-06-20, Daniela RADUCU)

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The objective of the paper was to investigate the presence of calcium oxalate crystals in the roots of grapevine Merlot/Kober 5BB from Murfatlar Vineyard, and their correlation to the high content of total and active calcium carbonate in soil, inherited from the parent material. Calcium oxalate is a bio-mineralization major product that formed in the superior plants (like the grapevine - Vitis vinifera), occurring as crystals of various shapes (druses, raphides, envelopes, etc.) and supposing to have also various ...

Soils2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

DYNAMICS OF SOIL SEALING AND SOIL LANDSCAPE WITHIN BUCHAREST METROPOLITAN AREA

(STEF92 Technology, 2017-06-20, Alina Eftene, Alexandrina Manea, Sorina Dumitru, Daniela Raducu)

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Urban sprawl and land abandonment are the major threats to agricultural areas, as highlighted the European Environment Agency. Bucharest metropolitan area is a proposed metropolitan area project, aiming to reach 2700 km2 in an intermediate stage. This area would include Bucharest City and other 62 surrounding LAUs from Ilfov, C?l?ra?i and Giurgiu Counties. The paper aims to assess the dynamics of soil sealing and soil landscape patterns and to evaluate soil productivity lost due to the urban sprawl within the Buch...

Soils2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Ecology, Economics, Education and Legislation
Publication

ENVIRONMENTAL RISK ASSESSMENT BY RISK MATRIX METHOD

(STEF92 Technology, 2017-06-20, Tamara Radu, Lucica Balint, Gina Genoveva Istrate, Beatrice Tudor)

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The risk assessment of an organization is stipulated in international standards and in a variety of international and national laws and reglementations. In the context of the obvious environmental problems and incidents with disastrous effects for the environment of the past 50 years, industrial and business environment recognizes the importance of environmental risk management and its applied. In the process of the environmental risk management, the risk assessment and risk treatment plays a crucial role in the c...

Ecology and Environmental Protection2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publication

FOCAL MECHANISM AND SOURCE DIRECTIVITY FOR VRANCEA INTERMEDIATE DEPTH EARTHQUAKES

(STEF92 Technology, 2017-06-20, Cristian Neagoe, Bogdan Grecu, Mircea Radulian)

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The focal mechanism and rupture directivity for intermediate-depth earthquakes occurred in the Vrancea source (Romania) are determined using FMNEAR algorithm [1]. The method is based on the waveform inversion of near-source seismic waveforms and on a linear finite source model. When the FMNEAR algorithm is started the first parameters that are determined are the moment magnitude (Mw), the double couple focal mechanism (strike, dip, rake) and the distribution of seismic moment along strike. This provides a first or...

Ecology and Environmental Protection2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Nano, Bio and Green - Technologies for a Sustainable Future
Publication

INFLUENCE OF MILK HEAT TREATMENT AND SALTING METHODS ON COMPOSITION, PROTEOLYSIS AND VOLATILE PROFILE OF NASAL CHEESE

(STEF92 Technology, 2017-06-20, Florina Radu, Iuliana Popescu, Delia-Gabriela Dumbrava, Camelia Moldovan, Lia Rotariu)

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Nasal cheese is a smear ripened traditional Romanian cheese produced in a natural cave near Taga commune, Cluj County. The effect of varying heat treatments (65 or 80 пїЅC for 20 and 5 minutes respectively) and salting methods (dry or brine salting) on bacterial viability and biochemical properties in Nasal cheese were investigated. Brevibacterium linens, a corynebacterium produce a characteristic "sulphur" aroma associated with such cheese. Therefore, this study also investigated the profile of volatile compounds...

Advances in Biotechnology2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Nano, Bio and Green - Technologies for a Sustainable Future
Publication

MINERALS PROFILE OF SOME BROILER CHICKEN TISSUES AND ORGANS CONSECUTIVE SELENIUM INTAKE

(STEF92 Technology, 2017-06-20, Camelia Moldovan, Viorica-Mirela Popa, Diana-Nicoleta Raba, Florina Radu, Delia- Gabriela Dumbrava)

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The main goal of our paper was to determine the consequences of selenium intake (0.2 ppm as selenium selenite) on mineral profile of some broiler chicken (Ross) tissues/organs. Scarcity of studies on reference ranges for various minerals in different tissues was the secondary reason of our study. Our results highlighted significant variations on minerals content from studied samples: blood пїЅ Cu, Mn, Fe; faeces пїЅ Cu, Mn, Fe, Mg; muscular stomach пїЅ Fe, Zn, Ca; liver пїЅ Fe, Mg, Ca, Na; kidney пїЅ Cu, Mg, Ca, N...

Advances in Biotechnology2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

NEW COMBINED MEMBRANE-ADSORPTION TECHNOLOGY FOR PURIFICATION OF WATER FROM ORGANIC POLLUTANTS

(STEF92 Technology, 2017-06-20, Boyko Tsyntsarski, T. Budinova, A. Sarbu, T. Sandu, A. Radu)

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Adsorption of p-nitrophenol from aqueous solution by combined membrane-adsorption technology was studied. Activated carbon samples were synthesized on the base of industrial by products (coal tar pitch) and biomass. Synthetic activated carbon synthesized from mixture of coal tar pitch and furfural by thermo-oxidation treatment with sulfuric acid at 200oC, and subsequent carbonization in nitrogen atmosphere at 600 oC, followed by hydro-carbonyzation at 800oC. Biomass based activated carbon was obtained by hydro-car...

Hydrology and Water Resources2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Nano, Bio and Green - Technologies for a Sustainable Future
Publication

NUTRITIONAL AND PHYSICOCHEMICAL ASPECTS OF FRESH AND COMMERCIAL FRUIT JUICES

(STEF92 Technology, 2017-11-20, Antoanela Cozma, Lia Micula, Florina Radu, Dacian Lalescu, Mihaela Petcu)

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Fruit juices are consumed worldwide, not only for their flavour, taste, and freshness, but also due to their beneficial health effects when are consumed regularly. Being relevant sources of vitamins, minerals and polyphenolic compounds many people are becoming aware of the importance of consuming them in their daily diet. The citrus juices, lemon, lime and grapefruit juice is the most appreciated and used because of its flavour and high content of vitamin C. The purpose of this study was to analyze and compare som...

Advances in Biotechnology2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publication

OPTIMISATION OF OIL PRODUCTS BLENDING

(STEF92 Technology, 2017-06-20, Timur Chis, Viorel Ionescu, Renata Radulescu)

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The emergence and development of the internal combustion engine began in the 18-th century in England. But the first patent for a piston engine with compression ignition was achieved by Rudolf Diesel in year 1892 [1]. The engine use coal powder as fuel. The most used vegetable oil as a fuel and peanut oil. In the year 1859 in Pennsylvania was first released at the amount of crude oil that has been refined for kerosene and gasoline. Because a large quantity of by-products remained unused, Rudolf Diesel using a frac...

Ecology and Environmental Protection2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Ecology, Economics, Education and Legislation
Publication

PREPARATION AND CHARACTERISATION OF POLYMER MEMBRANES ENHANCED WITH MEDICINAL PLANT EXTRACT

(STEF92 Technology, 2017-06-20, Simona Caprarescu, Violeta Purcar, Alexandra Raluca Miron, Anita Laura Radu, Mihaela Pascu Neagu)

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This paper reports the preparation of novel polymer membranes by phase inversion at room temperature (25 пїЅC), using acrylonitrile, acrylic acid, dimethyl sulfoxide and small amount of medicinal plant extract. We investigated the structure of the resulting membranes through Fourier Transform Infrared (FT-IR) spectroscopy and SEM microscopy. Also was determined the water content. FTIR-ATR spectra show that the peak at 1723 cm-1 shifted to lower wave number when medicinal plant extract (1715 cm-1) is added in the p...

Ecology and Environmental Protection2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Ecology, Economics, Education and Legislation
Publication

RESEARCHES CONCERNING FOOD AND FEEDING BEHAVIOR OF PADDLEFISH (POLYODON SPATHULA, WALB. 1792) IN LANDSCAPED AQUATIC ECOSYSTEMS

(STEF92 Technology, 2017-06-20, Mioara Costache, Mihail Costache, Cecilia Bucur, Daniela Radu, Nino Marica)

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This paper presents results of research on feeding behavior of paddlefish (Polyodon spathula, Walb. 1792), performed at the Fish Culture Research and Development Station Nucet, DпїЅmbovi?a, between 2002 -2007. The results confirmed the planctonofag character of this species. Paddlefish food consists primarily of zooplankton, insects and insect larvae, plant debris and detritus, identified in the intestinal contents. Feeding behavior is differentiated by age and size of fish. During the first days of life, juvenile...

Ecology and Environmental Protection2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Nano, Bio and Green - Technologies for a Sustainable Future
Publication

SIMULTANEOUS DETERMINATION OF ACETOIN AND DIACETYL IN YOGURT BY A SPECTROPHOTOMETRIC METHOD

(STEF92 Technology, 2017-11-20, Florina Radu, Iuliana Popescu, Lia Micula, Daniela Stoin, Antoanela Cozma)

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The aim of this study was to develop a rapid and relatively simple protocol for the simultaneous quantitative determination of the main volatile compounds acetoin and diacetyl found in yogurt. Both these substances are the common flavor components in cultured dairy products. Acetoin/diacetyl determination is important because its concentrations represent criteria for the quality appreciation of the lactic starter cultures. This proposed method employs the reactions of acetoin and diacetyl with 1-naphthol and creat...

Advances in Biotechnology2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

SOIL BIOTIC CONSTITUENTS PROVIDING ECOSYSTEM SERVICES

(STEF92 Technology, 2017-06-20, Daniela Raducu, Sorina Dumitru, Petru Ignat, Alina Eftene, Alexandrina Manea)

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Along the whole history, the human civilizations were depended mainly on the soil fertility and further on the ecosystem well function and its appropriate characteristics. These functions (as natural processes occurring in ecosystems) depend on its structure (on biotic and abiotic constituents respectively) and provide ecosystem services. The paper emphasized the way that one of the ecosystem services, essential to our health and well being, as the пїЅregulation of the nutrients and their uptake? arises from the i...

Soils2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Ecology, Economics, Education and Legislation
Publication

STUDY REGARDING THE FISH DISEASES IN AQUATIC ECOSYSTEMS LOCATED AND LANDSCAPED IN SOUTHERN REGION OF ROMANIA

(STEF92 Technology, 2017-06-20, Cecilia Bucur, Mioara Costache, Carmen Georgeta Nicolae, Daniela Radu, Mihail Costache)

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This paper presents the diversity of parasites species identified on cultured fish species, the degree of infestation and the epizootological state in nine fish farms (most of them producing fish fry for stocking other fish farms). These farms are located in five counties in the south of Romania (Arge?, DпїЅmbovi?a, Teleorman, Giurgiu and C?l?ra?i). A total of 653 fish were investigated. The fish species belong to two fish families namely Cyprinydae: Abramis brama, Cyprinus carpio, Carassius gibelio, Hypophthalmic...

Ecology and Environmental Protection2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Water Resources. Forest, Marine and Ocean Ecosystems
Publication

THE INFLUENCE OF BIOLOGICAL ACTIVITY ON SOIL STRUCTURE BY THE ORGANIC MATTER BIOTURBATION

(STEF92 Technology, 2017-06-20, Sorina Dumitru, Petru Ignat, Alexandrina Manea, Daniela Raducu, Valerica Tudor)

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The objective of the paper was to emphasize the influence of the biological activity on the structural improvement of the compacted clayey pedogenetic horizons of two Chromic Luvisols, by the organic matter bioturbation. The researches were performed on two Chromic Luvisols from Romanian Plain, where the mean annual temperature is 10.5oC and the mean annual precipitation is 548 mm. The analytical data showed that clay content increased from the top layer of both soil profiles (28.9% in P1, and 29.8% in P2), to Bt ...

Soils2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing
Publication

UAV TECHNOLOGY USED IN FACILITY MANAGEMENT IN THE CAMPUS OF THE BUCHAREST UNIVERSITY OF AGRICULTURAL SCIENCES AND VETERINARY MEDICINE

(STEF92 Technology, 2017-06-20, MIHAI Doru, MUDURA Radu, CALUGARU Andreea, SARBU Nicoleta, ILINCA Liviu)

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The fast pace at which decisions are made today, demand near-instant visibility for all the assets. In such a demanding environment, the management of a campus that hosts over 4000 students every year, in the most crowded city of Romania, is by all means a challenge. The emerging of the UAV technology provides insight into facility management, assuring asset inventories, spatial context and strategy for further investments and activities. The workflow described in this paper starts with acquiring data in the field...

Cartography and GIS2017
Showing 1-17 of 17 records
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