http://arthra.ugal.ro/handle/20.500.14043/25947 2026-04-19T00:04:33Z 2026-04-19T00:04:33Z Sava, Cornel Drăgan, Iulia Stroe, Ana Maria Pirău, Cristina Pică, Elena Maria http://arthra.ugal.ro/handle/20.500.14043/25957 2020-09-03T13:27:54Z 2016-01-01T00:00:00Z

Reducing the Sludge Quantity Ptoduced from Used Water Purification - a Source of Profit Sava, Cornel; Drăgan, Iulia; Stroe, Ana Maria; Pirău, Cristina; Pică, Elena Maria This paper has its origins in the analysis of a real situation met in the Water Purification Plant from Cluj-Napoca city. The produced dehydrated sludge is about 70 - 80 tonnes / 24 hours, with a density that allows for an equivalence of 1 tonne to 1 m³, 80,000 Kg or 80 m³, i.e. a huge amount and an impressive volume of material. This paper does not propose solutions to valorise or store the huge quantity of sludge, though the present solutions are quite inefficient. The stress is placed upon the sludge production sources, its transportation to the purification plants, the collection of the sludge in the purification plants and the dehydration methods that can be used. The analysis of these stages aims at identifying several measures that could lead to diminishing the amount of sludge produced after the purification of used and dehydrated water in the purification plants without affecting the quality of purified water. The measures identified are to be presented as measures that can be applied in the spirit of sustainable and efficient development. The business feature is given by the savings brought by the mitigation of the sludge amount to be stored and paid for in the ecological storage places in remote areas. The Annals of "Dunarea de Jos" University of Galati Fascicle IX : Metallurgy and Materials Science, No. 4 - 2016, ISSN 1453 – 083X

2016-01-01T00:00:00Z Marica, Elena http://arthra.ugal.ro/handle/20.500.14043/25956 2020-09-03T13:27:54Z 2018-01-01T00:00:00Z

The Level of Noise Pollution in University Campuses Administered by the University of 1 December 1918 in Alba Iulia Marica, Elena Sound pollution is becoming a major problem because of multiplying sources of noise. In this study, I will present the results of the noise measurements carried out in the four campuses of the 1 Decembrie 1918 University in Alba Iulia. Initially the noise level was measured at several points in the university campuses and the main sources of noise were identified. Finally, solutions have been sought to mitigate noise so that noise levels remain below the maximum allowable limits in order to create normal learning and resting conditions for students staying in these campuses. The Annals of "Dunarea de Jos" University of Galati Fascicle IX : Metallurgy and Materials Science, No. 4 - 2016, ISSN 1453 – 083X

2018-01-01T00:00:00Z Moroșanu, Andreea-Diana Militaru, Mădălina Elena Dumitru, Gabriel Marius http://arthra.ugal.ro/handle/20.500.14043/25955 2020-09-03T13:27:54Z 2016-01-01T00:00:00Z

Aspects Regarding the Traceability in Temperature Measurements Moroșanu, Andreea-Diana; Militaru, Mădălina Elena; Dumitru, Gabriel Marius The traceability of national standards to a reference measurement is essential to correctly translate the information about customer preferences described in international standards as a prerequisite which exists for the design of goods that comply with the expected characteristics. The traceability of national and reference measurement standards to the International System (S.I.) is achieved by: comparisons with the primary measurement standards of other countries and periodic calibration with respect to measurement standards of other international and national institutes of metrology, whose traceability to the SI is already proven and widely recognized internationally. This paper discusses how traceability is possible or it is ensured in temperature measurements, by using measuring instruments that are traceable at International Temperature Scale of 1990 (ITS-90) [1]. The Annals of "Dunarea de Jos" University of Galati Fascicle IX : Metallurgy and Materials Science No. 4 - 2016, ISSN 1453 – 083X

2016-01-01T00:00:00Z Bălan, Vasile Bordei, Marian http://arthra.ugal.ro/handle/20.500.14043/25954 2020-09-03T13:27:54Z 2016-01-01T00:00:00Z

Experimental Shooting with Thor-1 Disruptor: New Type of Gas Device used to Neutralize improvised Explosive Devices Bălan, Vasile; Bordei, Marian The paper presents experiments conducted with disruptor THOR-1, a new type of gas-dynamic device used to neutralize improvised explosive devices. Disruptor THOR-1 [1] was designed and practically built as a gas-dynamic device that propels jets using colloidal particulate blast. The Annals of "Dunarea de Jos" University of Galati Fascicle IX : Metallurgy and Materials Science, No. 4 - 2016, ISSN 1453 – 083X

2016-01-01T00:00:00Z