Papers by Laurentiu Ciornei
Annals of Spiru Haret University. Economic Series
Based on the need to recover various wastes such as waste from wastewater treatment plants, it is... more Based on the need to recover various wastes such as waste from wastewater treatment plants, it is proposed to use sludge in the manufacture of various building materials as bricks. So far, bricks made of different materials and combinations of classical materials as burnt clay, cement, sand, but also of other unconventional materials, most of them coming from different wastes, are used in construction. In order to use the sludge for bricks fabrication, it is necessary to inert it and to obtain a moisture content below 80%. Also, the physico-chemical and ecological parameters must be suitable for sludge utilization and their values must be situated within the limits imposed by legislation. So, the sludge is centrifuged in order to reduce the moisture content from (90-95)% to a maximum of 80%, treated, then the sludge batches are characterised and finally the sludge is recovered by inert cement.
Annals of "Valahia" University of Târgovişte, Mar 31, 2023
Annals of "Valahia" University of Târgovişte, Sep 30, 2023
Lucrări Ştiinţifice, Universitatea de Ştiinţe Agricole Şi Medicină Veterinară "Ion Ionescu de la Brad" Iaşi, Seria Horticultură, 2012
Romanian Agricultural Research, 2023
Agriculture plays a crucial role in Romania's economy, a fact that accelerates the search for way... more Agriculture plays a crucial role in Romania's economy, a fact that accelerates the search for ways to maximize production yield and profit. The aim of the paper is to study the characteristics of the transformation of agriculture in the context of digitization. Research methods include scientific and theoretical approaches to assess the state of agriculture and its potential in the context of digitization, such as system and situation analysis. The current stage of agricultural development is characterized by a significant transformation of management and production processes due to the introduction of digital technologies. The experience has convincingly shown that the traditional forms of development of agricultural production have practically exhausted themselves. In the new conditions of financial and economic activity, the scientific and technological progress becomes decisive. In agriculture, the digital transformation has a significant impact on material and human resources, increases the productivity of crops, improves the quality of agricultural and livestock products. The digitization of agriculture is extremely important, because it is a source of agricultural economic growth and can become a strong incentive for the innovative development of the sector. Investments in the development of digital infrastructure in rural areas can improve the living conditions of the rural population, with local authorities solving more efficiently the problems within their competence. Also, the digitalization of agriculture will promote the development of small farms in rural areas and contribute to the diversification of the rural economy.
Recent studies suggest that the level of pollutants emitted into the atmosphere can be significan... more Recent studies suggest that the level of pollutants emitted into the atmosphere can be significantly reduced by employing environmental policies and strategies regarding the use of renewable energy sources, alternative fuels, high energy efficiency plants and equipment, as well as the implementation of a program for afforestation and creation of green spaces for CO2 absorption, retention of fine powders and release of oxygen into the atmosphere. The current paper analyses the above-mentioned environmental strategy, starting from the assumption that the development of an afforestation program contributes to the retention of fine powders and implicitly to the release of a greater quantity of oxygen in the atmosphere, being the starting theory tested through an econometric model. Through this econometric model, the relationship between air quality and the surface of the land on which artificial regeneration was performed will be studied, using panel data for a number of 41 counties in Romania. The results of this analysis highlight that artificial forests have a positive impact on air quality, but the effects are visible after a certain time lag because forests are slowly renewable resources. For these reasons, it should be emphasized that the afforestation program must be doubled by the rational exploitation of this extremely precious resource, the forest, combined with the reduction of emissions of polluting elements. As a consequence, significant air quality improvement can be achieved.
Bucovina forestieră, Dec 9, 2020
Sciendo eBooks, Dec 15, 2022
Bucovina forestieră, Jul 31, 2018
Bucovina forestieră, Dec 30, 2019
Bucovina forestieră, Jul 31, 2017
Bucovina forestieră, Jun 30, 2021
Bucovina forestieră, Jul 20, 2020
Mențiune: acest interviu a fost realizat în prima decadă a lunii aprilie, vreme în care România, ... more Mențiune: acest interviu a fost realizat în prima decadă a lunii aprilie, vreme în care România, dar în special Suceava, suferea din cauza pandemiei generate de COVID-19.
Bucovina forestieră, Jan 12, 2021
Bucovina forestieră, Dec 30, 2018
Annals of "Valahia" University of Târgovişte, Apr 1, 2019
Education, in general, and environmental education, in special, is salvation and future of mankin... more Education, in general, and environmental education, in special, is salvation and future of mankind, contributing by reorientation and interdisciplinarity of education to strengthening in values, behavior and lifestyles required for sustainable future development. The ecological and economic implications of better use of information on sustainable resource management lead to the development of perspectives, knowledge and skills that are so vital to environmental education life skills education. Unfortunately, environmental criminality has reached fourth place in the category of illicit activities at the international level. Therefore, detailed knowledge of the relationship between economic fundaments, society and the environment is strictly necessary in order to understand the values that we want to reach, the effect on performance for identifying and promoting quality criteria. These criteria help the development of a toolkit and techniques needed to increase competences and creativity, in the context of opportunities, challenges and barriers imposed by environmental security. Public health, without an adequate living environment, cannot exist and for this reason, a global effort is mandatory to raise awareness and education of the population to fight against environmental crime on our planet.
Romanian Agricultural Research
An experiment was laid out on a Haplic Phaeozem (PH ha) (WRB-SR 2014) characterized by a dark col... more An experiment was laid out on a Haplic Phaeozem (PH ha) (WRB-SR 2014) characterized by a dark colored mollic A horizon (Am), a cambic B horizon (Bv), and an accumulation calcareous illuviation horizon (Cca) of secondary calcium carbonates which occurs deeper than 125 cm (SRTS, 2012). Clay content in the first 40 cm varies between 39.4 and 42.6%, total nitrogen is 0.186%, available phosphorus soluble in the ammonium acetate lactate solution (PAL) 76 mg/kg, available potassium soluble in the same solution (KAL) 250 mg/kg, and soil reaction (pH) 6.3. The land is slightly uneven, groundwater below 5 m depth. The humus content was average in the beginning of the experimentations after which increases were noticed especially in the upper layer (5-10 cm). Soil humus content evolution following different agricultural technologies use was similar at all three studied depths, with increases in the case of minimum tillage system, but without statistically significant differences as compared to...
Romanian Agricultural Research
Sunflower (Helianthus annuus L.) crop is grown worldwide, under a range of agro-environments. Thi... more Sunflower (Helianthus annuus L.) crop is grown worldwide, under a range of agro-environments. This crop is primarily grown for its edible oil but also for its achenes (confectionery types), both commonly used in human food. With ongoing climate change, sunflower, as a spring crop, could be more exposed to the direct effect of heat stress and to different drought scenarios, resulting in severe yield losses, oil content decrease and alteration of fatty acids composition. The oil concentration in sunflower (whether linoleic or oleic varieties) is valued above the contribution of genotype, of environment but also of the crop management. In our study, with different sunflower hybrids, experimented in different conditions of the environment, we obtained results on oil content and fatty acids composition. The oil content in kernels is influenced by climate. This depends by air temperature in period of anthesis or during grain filing, also by rainfall. The unsaturated fatty acids of sunflow...
As a trend of evolution, the labor force in the Romanian forestry sector is part of trajectory re... more As a trend of evolution, the labor force in the Romanian forestry sector is part of trajectory registered by the European Union, as a whole, because many of the member countries are still oriented on the traditional methods of administration, harvesting and processing. However, there are also developed countries with large forested areas (Finland, Sweden) that have embraced new technologies and adjusted management and production processes. This issue aimed, among other things, at reducing the number of people employed in the forestry sector. In Romania, increasing the number of the employees, based on the quantitative increase of jobs as result of the gross exploitation of resources, will slow down by adopting new technologies, reducing the consumption of natural resources, but also as an effect of economic shocks generated by the pandemic. For these reasons, according to our study, the low-skilled workforce will suffer, this being the most vulnerable category, as technological developments need employees with higher skills and abilities. Equally, the informal sector must be taken into account because it employs four times people more. Romania have to adopt those appropriate measures in order to help the incorporation of the labor force released from the forestry sector of resource exploitation into adjacent sustainable activities.
Proceedings of the ... International Conference on Business Excellence, Dec 1, 2021
The Kurzarbeit model was applied by several European governments during the previous crisis of 20... more The Kurzarbeit model was applied by several European governments during the previous crisis of 2008-2009 and involved the design of small state-funded work schemes. Governments have supported subsidized companies to compensate for the loss of revenue. Adapting the model to the crisis has been much easier in countries where regulation already exists, compared to the countries that adopted it for the first time. The efficiency of the model was different, with the best results being obtained by countries that had robust economies before the crisis. Overall, at the level of countries that have applied this model, it can be said that the model provided job stability during the crisis, not the certainty that workers will keep their jobs even after the crisis. Given the recent decision of the Romanian Government to apply the Kurzarbeit measure in our country as well, in the current study we considered the analysis of those issues that affected the countries that adopted this model for the first time, in the previous crisis, at which we added the unprecedented impact of the recent pandemic and the particular aspects that characterize today's Romanian economy. The results show that, without analyzing the particularities that differentiate Romania from the countries that have successfully applied the model, the Kurzarbeit model will not ensure the sustainable development of the social factor and the employment rate assumed for 2020, and social inequalities and poverty will continue to deepen.
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Papers by Laurentiu Ciornei