Journal of Research and Innovation for Sustainable Society

15-22

Authors: M Bucur, S Cananau

One of the most important application in mechanical transmissions with gears is the transmission by bevel gears. In this paper we are going to perform a computerized design of the bevel straight gears transmission and the static analysis of the bevel gers transmission under load. We presume that these gears are manufactured in conical blanks by cutting, using same known methods. The static analysis is performed using the Finite Element Method. We present the results of the comportment of the system under load for displacements and stress in the region of the root of the teeth, the total displacement due to elastic deformation of the structure and the results in conditions of Hertzian contact under load.

31-35

Authors: C Isac

A actualy distribution system in electronic commerce is the e-Fulfillment. In the first part of the paper by presenting the concept and technological developments we have highlighted several classifications thereof. The biggest part presents the main operations are conducted at the operator e-Fulfillment, from taking products from suppliers, management, logistics, comparative analysis of classical storage and eFulfillment systems, some aspects of the advantages of using these systems, the costs involved and examples for Romania. The paper ends with some aspects of the consequences of the electronic trading and eFulfillment services development on human resources.

44-51

Authors: D Cîrţînă, A Tudorache

The paper presents the way of obtaining lime, the technological processes adopted and the resulting products. The process of obtaining lime has effects on the environment, affecting through the emissions of pollutants, as well as the quality of air, water and soil. That is why this process of obtaining lime must comply with the regulations in force to ensure a balance between the industrial environment and the environment. At the same time, it is important to know the sources of pollution, but also the measures for the protection of the quality of the environmental factors, so as to ensure a control of the emissions resulting from the lime industry and a low level of pollution, without significant effects on the environment.

60-69

Authors: I Radulescu, A V Radulescu, M M Nicolescu

The paper presents the conditions, objectives and stages necessary to implement an ISO 14001Environmental Management System in a company for computers and electronic devices repairing. Implementing ISO 14001 standard establishes a set of rules for a high performance Environmental Management System. The company works in computers and electronic devices repairing and its purpose is to improve the organization environmental performance by using efficiently the resources. The applied system concern environmental activities and aspects that the organization can control and influence, including the requirements imposed to be fulfilled. The company environment policy had to formulate environmental objectives, according to the legislation. The environmental results are obtained in accordance with the quality, health and occupational safety policy and with the strategic direction of the organization.

78-85

Authors: C Torcătoru, D Săvescu

Among the current challenges of the global automotive industry include changes in global markets that lead to a variety of products, regulation that drives pressure on new technologies, and competition from new competitors. This paper attempts to find answers to the question, how can we capitalize the semi-finished parts of the automotive industry that have emerged from the parameters demanded/imposed by the final customer or which have some visual / design defects, but which retain their functional role. In almost all cases, information and communication technology plays a major role in future strategies to meet the challenges mentioned above, which can stimulate the production process more efficient by using intelligent manufacturing approaches. Thus, this paper proposes to automate and maximize the capitalization of these parts, a Paternoster system for eliminating the logistics/storage space, reducing the handling time, increasing the efficiency and traceability of the scrap

92-100

Authors: L Paunescu

In the analysis we made turned its attention to finding a correlation between GDP and the rate of insertion of university graduates in the economic, regional levels. Analysis shows that there is a correlation between the degree of employability of university graduates and the regional gross domestic product. We hope that this study will be a significant contribution from the regional perspective to better knowledge of the complex relationship between education and employment, may serve to define the strategic role of training and grounding and directing future regional policies on employment and training.

107-115

Authors: I L Petre, M Nica, C Caraman

This article proposes the research of the consumption expenditures in Romania in relation to the income. Thus, with the help of the data provided by the national bases, respectively the National Institute of Statistics on the evolution of the total consumption expenses, of the food expenses and the evolution of the incomes, it was possible to determine the influence that they have on the consumption, respectively the expenses. By making two simple linear regression models it was possible to determine the equation of the function in which both total consumption expenditure and consumption food expenditure could be expressed according to the level of income.

121-124

Authors: R Mecu, D Cîrţînă, V Nănescu

The aim of the current study is to prevent and reduce the number of bacterial infections in surgical implantation procedures. The hydroxyapatite is a calcium phosphate ceramic with important applications in the medicine and chemistry fields. The hydroxyapatite is a main mineral constituent of the hard tissues such as bones and teeth. The hydroxyapatite has remarkable properties including biocompatibility, bioactivity and ability to form a direct chemical bond with human hard tissues. Over the last decades, the biomedical orthopaedic and dentistry sectors have witnessed an unprecedented demand for a large variety and number of scaffolds, grafts, implants, and endo-prostheses. The increase in life expectancy, and the higher frequency of injuries and diseases are regarded as the main factors for this growing demand in orthopaedic and dental devices. The quality of life for millions of people has been drastically improved by using hydroxyapatite for bone repair and tissue regeneration. Recent findings in the realm of ion-substituted hydroxyapatite (HA) could pave the road towards significant developments in biomedicine, with an emphasis on a new generation of orthopaedic and dentistry applications, since such bioceramics are able to mimic the structural, compositional and mechanical properties of the bone mineral phase.