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Diana Popescu and Iuliana Moholea

Abstract

An important aspect in assessing noise in urban agglomerations is the subjective one, which takes into account the sensitivity and specific reactions of residents to the noise in their living environment. This paper presents results of a sociological study initiated to determine the population awareness, regarding the urban acoustic environment and estimation of effects and disturbance. The survey was conducted in a Romanian city, to complement the information provided by the strategic noise map of the area. This approach allows the estimation of specific local patterns of reaction and response to urban noise of the exposed population and provides the information, needed to develop action plans and to set proper solutions for urban area planning.

Open access

Diana Ioana Popescu and Ioan Cosma

Abstract

The paper presents two theoretical models for traffic noise level distribution on curved horizontal roads. In the case of vehicles moving on a given route, one can consider, in terms of sound field, that the granular traffic is equivalent for short periods with a quasi-continuous noise flow. When computing and modelling the noise level generated by traffic on roads with complex trajectory, it is common to treat the route as a sum of small length road segments, each being assimilated with a linear noise source. This paper started from the assumption that the route can be decomposed into a sequence of linear and arc-shaped road segments, each of which is treated as a linear respectively curved noise source. An arc-shaped road segment is modelled by a tubular vibrating surface, of circular or rectangular section. In the case of rectangular section, the vibrating blade emits complex sounds on its both vertical sides and the generated sound field can be described more clearly, qualitatively and quantitatively, through intensity distribution. The theoretical models presented in the paper have direct application to the traffic noise prediction and noise maps drawing

Open access

Diana Ioana Popescu, Iuliana Fabiola Moholea and Radu Mircea Morariu-Gligor

Abstract

The paper presents results of three socio-acoustic surveys conducted in an interval of twelve years, between 2001 and 2013, in a large Romanian city, Cluj-Napoca. The purpose of the surveys was to assess the awareness of residents on urban noise and the extent to which the noise environment affects their everyday life, behavior and health. The surveys were conducted in 2001, 2009 and 2013. The questionnaire used in the first survey had 16 questions and it was verified prior to study through a pilot survey, being corrected and improved. For the second and the third study, the questionnaire was enriched with eight more questions, regarding essentially the description of the residential area, criteria for its selection and also awareness about the noise map of the city. The analysis of responses defines the main characteristics of the local pattern of annoyance and reaction of the urban population to the environmental noise.

Open access

Diana Popescu and Adrian Burlacu

Abstract

A current worldwide economy problem includes both the responsible management of the planet's non-renewable resources and the waste management. The benefits of using recyclable materials and recycling technologies with asphalt mixtures consist mainly of reducing fuel consumption and greenhouse gas emissions. It is well known that oil (from which bitumen is obtained) is a non-renewable resource, hence the its price increase. Therefore, at present, the world is looking for solutions that will lead to a better use of natural resources and to an economic integration of sub-products from various industries. This paper intends to raise awareness of the possibilities for asphalt mixtures recycling and of the recyclable materials that can be used as additives with benefits of each.

Open access

Alexandra Diana Vrapciu and Maria Viorela Popescu

Abstract

The terminal nerve (cranial nerve zero, cranial nerve XIII, the nerve “N”) was discovered in fish in 1894. In the early 90’s, it was found in human embryos and human adults. In the anterior fossa, it courses on the inner side of the olfactory tract and bulb; it then spreads fibers through the cribriform plate to distribute beneath the nasal septum mucosa. Being provided with intrinsic ganglion cells, its functions are weakly suggested by studies in different species. It may be connected with the visual system, it could act upon the intracranial vascular system, or it could ensure the pathway for pheromone-mediated behaviours. The cranial nerve zero deserves a better attention equally from anatomists and ENT specialists.

Open access

Mihai Dragomir, Diana Dragomir, Sorin Popescu and Ştefan Bodi

Abstract

This paper presents a case study regarding the methods used in teaching Design for quality at graduate studies level, in order to help practitioners derive enhancement ideas for their own demarches in related fields. The methodology consists in surveying existing experiences in the Quality engineering and management master program at the Technical University of Cluj-Napoca in a comparative study and defining a set of criteria for analyzing them. The two options of delivering the targeted competences, which have equivalent content, rely on different teaching approaches: classical for one group and computer aided for the second group. With the help of a focus group, the investigation criteria are defined and ranked using AHP (Analytical Hierarchy Process), while Pugh’s method is further used to detail the proposed comparison. A discussion on the results of the two scenarios is included, showcasing advantages and disadvantages, together with implementation suggestions.

Open access

Cristina Popescu, Gabriel Adrian Popescu, Olga Dorobăț, Alexandru Rafilă, Diana Tănase, Claudia Mikula, Gudrun Weissensteiner and Steliana Huhulescu

Abstract

We report first description of clinical cases of OXA-48 carbapenemase-producing Klebsiella pneumoniae originating from patients hospitalized in the most important Infectious Diseases Hospital from Romania, between December 2012 and March 2013. All strains were isolated from patients who were previously admitted in surgical wards. None of the patients had been admitted in a hospital outside of Romania.

Open access

Ana Uzunov, Dan Popescu, Oana Bodean, Octavian Munteanu, Diana Voicu, Luciana Arsene, Florina Pauleţ, Monica Cîrstoiu and Cătălin Cîrstoiu

Abstract

Ankle fracture is one of the most common fractures in adults and among pregnant women. In pregnancy, the treatment must be prompt because of the risks and complications that could involve both mother and fetus. In this article, we reported the management of a patient with a bimalleolar fracture in pregnancy, its treatment, and evolution.