Ecoterra, No. 19, pp. 4-5, 2008
Mircea Gelu BUTA
Spitalul Judeţean de Urgenţă Bistriţa
Abstract: Now days, it can be noticed the existence of generic engineering’s advantages and disadvantages diversity . At the moment the polemics continues. It also has as an object some juridical and social consequences that this technique could generate in the near future. In this field, ethics, that has in the centre of attention the person, cannot be caught neither in dogmatism nor relativism, but filled by Jesus’ love, it must engage in the person’s development.
Key words: genes, biotechnologies, genetic engineering, ethics
Ecoterra, No. 19, pp. 6-7, 2008
Universitatea Tehnică "Gh. Asachi" Iaşi, România
Autoritatea Naţională de Reglementare pentru Serviciile Comunitare de Utilităţi Publice
Abstract: The climate changes that emerge from the global warming of the Earth have led to a decrease in the living conditions of its inhabitants and even at the borderline between life and death in some areas of the planet. The main cause of this phenomenon is the air pollution, mainly with CO2, which causes the green house effect. In the given project the authors analyse the natural and the anthropic sources of air pollution and also the means of preventing ecological disasters.
Key words: ecological disaster, climate change, greenhouse effect, CO2
Ecoterra, No. 19, pp. 8-9, 2008
Universitatea Babeş-Bolyai din Cluj-Napoca, Facultatea de Ştiinţa Mediului
Abstract: The purpose of this paper is to present the annual global mean energy budget and the phenomena of the Greenhouse Effect. Any changes in incoming or outgoing radiation could produce an unbalance in the equilibrated system Sun-Atmosphere-Earth, with major consequences in Earth’s climate. Earth’s mean global temperature has risen lately and that has a direct impact in the atmospheric circulation, which can determine so called “extreme events” such as hurricanes, floods, droughts etc.
Key words: greenhouse effect, global warming, extreme events, climate change
Ecoterra, No. 19, p. 10, 2008
Universitatea Babeş-Bolyai din Cluj-Napoca, Facultatea de Geografie
Abstract: The peri-urban space is a buffer space between the city and the surrounding rural areas. Often it is seen as a controlled method of city extension, representing the most valuable resource for the spatial development because it provides the necessary land upon new buildings are built.
Key words: peri-urban space, city extension, spatial development
Ecoterra, No. 19, p. 11, 2008
Grup Şcolar Economic „Iustinian Marina”, Băile Olăneşti
S.C. ICPE Bistriţa S.A.
Abstract: The aromatherapy is the branch of phitotherapy who aims the improvement or the healing of some diseases through utilization of some volatile and odorous products extracted from aromatic plants. The article points out the systematic summary of aromatic plants from Olanesti area. 44 species of aromatic plants were found.
Key words: aromatic plants, Olăneşti area, phytodiversity
Ecoterra, No. 19, pp. 12-13 2008
Liceul Teoretic „Andrei Bârseanu”, Târnăveni, jud. Mureş
Abstract: The aim of this paper is to determining the influence of the environmental factors on the phenology of the most disseminated prevernales and vernales plants in Tarnava Mica area.
Key words: Târnava Mică area, phytodiversity, environmental factors
Ecoterra, No. 19, pp. 14-16, 2008
Vladimir BREGA, Dionisie BUBURUZ
Institute of Ecology and Geography within Moldavia’s Academy of Sciences, Chişinău, Republic of Moldavia
The ’Climate’s Change’ Office within Moldavia’s Ministry of Ecology and Natural Resources, Chişinău, Republic of Moldavia
Abstract: Presently, a number of energy potential crops is being harvested in the RM on a large scale. Among them we could mention rape with high oil content and sorghum with sugar content. The usage of fossil fuels on a large scale affects the clime and the environment, contributing to the global warming effect with adverse impacts on wildlife, animals and vegetation, provoking intoxications, necroses, acid rains etc. Furthermore, the damages derived from various accidents could not be neglected as well, including the risks related to electrical and nuclear power stations. Along with the anthropogenic environmental risks (climate change, acidification of ecosystems, defoliation of trees, erosion of soil), natural risks are also assessed and reviewed in the paper.
Key words: environmental risks, fossil fuels, bio fuels, global warming
Ecoterra, No. 19, pp. 17-18, 2008
Universitatea TRANSILVANIA Braşov
S.C. ICPE Bistriţa S.A.
Abstract: This paper presents the link between the electromagnetic pollution and the main network distorsion - overvoltages and shortcircuits. The classical solutions (based on varistors, gas arresters and fuses) and one of the new solutions (based on electronic voltage regulator) are presented. The proposed new solution, patented in 2008 was implemented with a microcontroller, current Hall sensor and voltage sensor. This electronic device for overvoltage and shortcircuit protection, connected with an integrated web server (Site Player) posts warnings on the Internet concerning the moments and type of distorsions.
Key words: electromagnetic pollution, network distortion, microcontroller
Ecoterra, No. 19, pp. 19-20, 2008
Institutul de Cercetări Metalurgice Bucureşti
Mirela SOHACIU, Ecaterina MATEI, Cristian PREDESCU
Universitatea Politehnică din Bucureşti
Abstract: The usage of steel works slugs represent a challenge for road construction industry and for the diminution of interaction with the environment. Steel works slugs with granulation < 10 mm, which have not now a viable solution represented the researches object. The experienced technical solutions aimed the reduction of free CaO content and, subsequently, the reduction of slug fraction with the granulation < 10 mm, as well as the usage of these slugs in asphalt mixtures. The evaluation of steel works slugs capitalization shows an increase of sustainable development indicator which is called „materials efficiency” with 2.18 %. Technical-economic analysis regarding the capitalization of steel works slugs in Romanian ironworks has shown that the best variant is „Plant for the capitalization of liquid slug from secondary mettalurgic instalation LF type”.
Key words: steel works slugs, ironwork, sustainable development, environment, impact
Ecoterra, No. 19, pp. 21-24, 2008
Sistemul de Gospodărire a Apelor Bistriţa-Năsăud
Abstract: Programes of measures have to aim at all pollution sources categories introduced due to human activities: industry, agriculture, human agglomerating, hidro-morphological alterations. Implementation schedule of Framework Directive anticipates that the Measures Program draft to be finalized until December 2008, than to be submitted to public debate during the year 2009 and included in the first Management Plan, which will be published until the end of 2009.
Key words: water pollution, measures, human activities, Water management Plan
Ecoterra, No. 19, pp. 25-27, 2008
Gabriel CHINDRIŞ, Dan PITICĂ
Universitatea Tehnică din Cluj-Napoca
Abstract: Control systems for power equipments are generally included in microcontrollers or in System-On-Chip architectures. The real advantage of these types of implementations has to be not only a more precise generation of PWM signals or implementation of more complexe control loops but the adding of new functions, too: dynamic monitoring of power factor, new procedures for errors treatment, designing for tests and testability and also communication technologies between systems. Implementation of these new functions thanks to microcontrollers and System-On-Chip architectures has to rely characteristic particularities of these technologies: complete management of included analogous and digital resources, a wide variety of peripherals which may be used in designing, the possibility to create new peripherals and high degree of resources reusing.
Key words: power sources, microcontroller, System-On-Chip architectures, power equipments
Ecoterra, No. 19, pp. 28-30, 2008
Constantin COSMA, Alida TIMAR, Vasile BENEA
University Babeş-Bolyai, Faculty of Environmental Science, Cluj-Napoca, Romania
Pannon University of Veszprem, Veszprem, Hungary
Abstract: Nuclear dating methods are in general absolute methods, the dating principle being based on the radioactivity law. Some methods, as luminescence or EPR dating, combine the radioactive aspects with solid state physics aspects. The paper presents three of the most interesting dating applications in the world (Earth age, Shroud of Turin, Turkana Boy). Also the first results obtained in a Romanian dating laboratory (Cluj-Napoca) by applying luminescence (TL and OSL) methods to Neolithic ceramics dating are presented.
Key words: nuclear dating methods, radioactivity, luminiscence methods
Ecoterra, No. 19, pp. 31-32, 2008
Robert BEGY, Constantin COSMA
Babeş-Bolyai University, Faculty of Environmental Science, Cluj-Napoca, Romania
Janos SOMLAI, T. KOVACS
Pannon University, Department of Radiochemistry, Veszprem, Hungary
Abstract: For recent sediment dating a relatively new method was developed in the end of the 70’s and beginning of 80’s. This method is based on two radionuclide which can be found in the sediment, one of them is natural and it is derived from the atmosphere (Pb-210) and the other is an artificial radionuclide (Cs-137) originated from nuclear tests and the nuclear power plant accident from Chernobyl. By analyzing the distribution of this radionuclide in the sediment column and applying the correct dating model we could find the age or the sedimentation rate for the investigated lake. This dating method was applied for examining the Red Lake sedimentation rate, and the results show some acceleration in sediment deposition in the last 18 years.
Key words: radiometric dating methods, Red Lake, radionuclide, sediment
Ecoterra, No. 19, pp. 33-34, 2008
Universitatea Babeş-Bolyai din Cluj-Napoca, Extensiunea Universitară Sf. Gheorghe
Abstract: The decomposition and total mineralization of phenol has been investigated and compared using UV photolysis, ozonation and their combination. The light source was a low-pressure mercury vapor lamp emitting at 185 and 254 nm and the energy consumption was identical in all cases. The dissolved oxygen enhanced the decomposition during UV photolysis, but there was no difference between the aerated and oxygen saturated solutions. Using oxygen instead of air the rate of decomposition increased strongly during ozonation and slightly in the combination of these methods. The combination of UV photolysis and ozonation was the most effective in the aspect of total mineralization.
Key words: phenol, ozone, UV photolysis, wastewater, mineralization
Ecoterra, No. 19, p. 35, 2008
S.C. ICPE Bistriţa S.A.
Institut für Neurophysiologie und Pathophysiologie Zentrum für Experimentelle Medizin Universitätsklinikum Eppendorf Universität Hamburg, Deutschland
Abstract: In this paper we have gathered all the data that we could find regarding to the introduction and the spreading of the pumpkinseed sunfish in Europe and in our country. In Romania, besides the literature quotations, we specify new places where pumpkinseed sunfish can be found, places that we discovered during our field research in the period of 2002-2006. We also discuss about the species influence upon the inland aquatic ecosystems from Europe.
Key words: Lepomis gibbosus, alien species, occurrence, aquatic ecosystem, impact