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Author publications

Costel Humelnicu

7 linked publication records · "Dunarea de Jos" University of Galati

Author: Costel HumelnicuSubject: Air Pollution and Climate Changeclear all
Showing 1-7 of 7 records
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SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Energy and Clean Technologies
Publication

REDUCTION OF POLYMERIC WASTE BY APPLYING HEAT TREATMENTS DURING THE POLYMERIZATION PERIOD

(STEF92 Technology, 2020-09-20, Costel Humelnicu, Elena Mereuţă, Valentin Amorțilă, Mihai Gingarasu, Monica Novetschi)

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Pollution and its effects on the environment have been at the centre of debates on the global stage, with growing concerns from researchers and the public. A major source of pollution is polymeric materials, which are increasingly used in various industries because of their similar properties to metal. If, in the case of polymeric thermoplastics materials we have recycling and reusing technologies when they reach the end of their lifespan or they break, not the same can be said about polymeric thermosetting materi...

Air Pollution and Climate Change2020
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Energy and Clean Technologies
Publication

THE EFFECTS OF AUTO POLLUTION ON THE POPULATION

(STEF92 Technology, 2020-09-20, Monica Novetschi, Elena Mereuţă, Mihai Gingarasu, Costel Humelnicu, Valentin Amorțilă)

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Transport sector is a fundamental component of the human society. The importance for both the economic and social activities reveals from the fact that through this sector the movement of goods and people is performed in order to satisfy the material and spiritual needs of the society. However, in long term, the transport sector has a significant role in degrading the quality of the air and witch affects directly or indirectly the health of the population. In the period 2007-2018 there was a significant increase i...

Air Pollution and Climate Change2020
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Energy and Clean Technologies
Publication

THE IMPORTANCE OF VEHICLE STEERING SYSTEM DIAGNOSIS IN REDUCING ENVIRONMENTAL IMPACT

(STEF92 Technology, 2020-09-20, Mihai Gingarasu, Elena Mereuţă, Valentin Amorțilă, Costel Humelnicu, Monica Novetschi)

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The worldwide exponential increase of vehicles in operation generates, in addition to meeting transport needs, serious problems with environmental pollution. Vehicle pollution means not only pollution with exhaust emissions, but also tire pollution. Microparticles resulting from the interaction between tire and driveway or waste tires have a negative impact on the environment, regarding air, water and soil pollution. Solutions to reduce this type of pollution are not only the subsequent treatment or reuse of waste...

Air Pollution and Climate Change2020
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Energy and Clean Technologies
Publication

FATIGUE POLYMERIC MATERIALS - AIR POLLUTION FACTOR

(STEF92 Technology, 2019-12-05, Costel Humelnicu)

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The current paper focuses on ways in which we can reduce pollution cause by thermosetting polymeric materials. The past years, the industry of polymeric materials has gone through a tremendous increase because of the many advantages they present. However, if these materials are not recyclable nor recycled, they can cause serious harm to our environment. Questions arise in the case of epoxy materials because currently we are not aware of any methods of recycling pieces made from epoxy or composite materials based o...

Air Pollution and Climate Change2019
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Energy and Clean Technologies
Publication

REDUCING THE AIR POLLUTION IMPACT OF THE RECYCLED AUTO VEHICLES

(STEF92 Technology, 2019-06-20, Costel Humelnicu)

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This paper addresses the problem of atmospheric pollution due to the scrapping of motor vehicles. Most of the materials used in the automotive industry are non-renewable, so the decommissioning of cars is a global problem. The environmental impact of this type of pollution is irreversible. In Romania, this problem is amplified by the purchase of second-hand cars that have a low life expectancy and are much earlier in the situation of being scrapped. Recovery of scrapped materials must be done selectively because a...

Air Pollution and Climate Change2019
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th SGEM International Multidisciplinary Scientific GeoConference SGEM2018, Energy and Clean Technologies
Publication

DAMAGING BY TRIBO-FATIGUE AND TEST RIG DESIGN

(STEF92 Technology, 2018-11-20, Costel Humelnicu)

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There is a fact that where surfaces are in contact with relative movement, there is also wear, with these aspects dealing the Tribology. There are other mechanical parts destroyed during functioning by the fatigue of the materials. Usually these two phenomena are studied separately. But there are mechanical systems where these two actions are joined into a single degradation event, leading to a shorter working time for the parts. The study of the tribo-wear as a simultaneous action with the material fatigue, leads...

Air Pollution and Climate Change2018
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Energy and Clean Technologies
Publication

NEURAL NETWORKS AS OPTIMIZATION TOOLS FOR FUEL CONSUMPTION

(STEF92 Technology, 2018-06-20, Costel Humelnicu)

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The paper presents a neural network based methodology for prediction and optimization of internal combustion engine vehicles' fuel consumption, as a way to reduce air pollution. As it is well demonstrated lately, the engine fuel burning is one of the main factors that generate air pollution. Its impact on environment is rapidly increasing, following the increase of vehicles numbers. The best solution to reduce the air pollution is to use electric motor driven vehicles but these are still very expensive, with a low...

Air Pollution and Climate Change2018
Showing 1-7 of 7 records
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