Analele Universitatii

9-16

Authors: Olga-Ioana Amariei, Codruţa-Oana Hamat

In the present paper, the types of decisions being taken at the top management level of a company, aim at its development and its manifestation on the competitive market, in the long run. These strategic decisions are adopted more in the conditions of risk and uncertainty determined by the forecast of market evolution.

24-34

Authors: Gaurav Kumar

This paper deals with the effects of Soret and dusty fluid on unsteady MHD flow past over porous plate. The flow is along over inclined plate with constant wall temperature and mass diffusion. The external uniform magnetic field is applied perpendicular to the inclined surface. The surface of plate is considered to be porous and fluid taken is a viscous, incompressible, an electrically conducting. The MHD flow model is consisting equations of momentum, diffusion equation and energy equation. The governing MHD flow model of partial differential equations is transformed to dimensionless equations by using dimensionless variables. To examined the solution of the MHD flow model, useful sets of the values of the parameters have been considered. The governing equations involved analytically. The results obtained have been examined with the help of graphs drawn for various parameters.

43-51

Authors: Andrea Amalia Minda, Gilbert-Rainer Gillich

It is known that experiments and hands-on learning are attractive for actual students. Furthermore, visualization permits an in-deep understanding of the learning content with beneficial consequence on the students’ performances. Consequently, virtual laboratories can aid students in achieving higher performances when studying machine design. In our research, after the students have familiarized with the theoretical aspects, they dispose of Java applets that allow performing supplementary experiments. After performing numerous experiments, which imply modifying the simulation parameters, it is observed that the students thoroughly understand the studied phenomenon.

61-68

Authors: Md Azree Othuman Mydin

For buildings and other constructions, fire protection is a must. The fear of uncontrolled fires and the desire to avoid their consequences is as ancient as human civilization. This fear has obvious enduring roots: unwanted fire is a destructive force that takes many thousands of human lives and destroys large quantities of asset. The primary objective of fire protection is to limit loss of properties and lives in the event of unexpected fires. Active fire protection is effective and efficient in most situations. However, passive fire protection, which includes the use of fire-proofing materials, provides an on-site fire resistance measure to prolong the longevity of load-bearing structures. Certainly, the nature, causes and scope of such events have changed considerably over millennia but fear and avoidance have remained as a primary human reaction and as an important human objective, respectively, for virtually every society. This paper will discuss on risk posed by fire, the passive fire protection components, conventional protection materials and thermally reactive materials. From the review, it can be concluded that active fire protection is effective and efficient in most situations passive fire protection, which includes the use of fire-proofing materials, provides an on-site fire resistance measure to prolong the longevity of load-bearing structures.

81-90

Authors: Arina Negoițescu, Adriana Tokar, Dan Negoiţescu

The article proposes an analysis of the dyeing/drying booths (DDB) operating parameters influence on the quality of products and processes that are specific to an economic agent, which has as its object of activities the design and production of integrated systems made of advanced composite materials, metallic materials and sandwich materials with different cores. In order to assess the product conformity, the production flow of products made of resin reinforced with glass fiber was followed and quality control of painted products was performed by final inspection. Final inspection is an essential factor in any scientific system of production organization and management. There have been highlighted measures in order to solve the spray-painted products nonconformities caused by the change of the dyeing/drying booths operating parameters. In this sense, solutions are proposed in order to correct the defects through three main actions.

99-104

Authors: Adrian Valentin Petrica

The paper presents the experimental achievement of heterogeneous joints, with dissimilar materials, as well as the analysis of these joints by mechanical and metallographic tests. After traction testing of the specimens, it was found that breaking occurred each time in the area of the base material, which leads to the conclusion that the strength of the welded joints is above the resistance of the base materials used.

111-117

Authors: Farah Nuratiqah Rusli, Md Azree Othuman Othuman Mydin

Malaysia is a country which is known for the heavy Islamic moral values presented in its culture and traditions. Mosques in Malaysia are well known for their beauty and captivating architecture. There are 5,300 mosques built in Malaysia as of November 2017 and the number is increasing as the years pass, but the accessibility of amenities for the PWDs is still a major problem. The mosque is not just for those without disabilities, therefore it is important to provide accessibility as to give the PwDs an equal opportunity for them to perform congregational prayers together with other devoted Muslims in respect of helping them perform their responsibilities and their social roles. Throughout history, community attitudes and physical obstructions in the built environment have barred PwDs from fully participating in the society. Access to education, employment, housing, recreation, cultural events, and transportation were denied to many people. These days, along with the emergence in the PWDs population, the mission for impartiality and equal rights is carried out aggressively. Currently, major changes in design requirements, both market-driven and legally mandated, are creating a new life system for PWDs and a new path for designers. This paper will present some of the major dilemmas faced by PwD’s when they perform prayers at mosque. Most of the mosque lack of accessibility and amenities for PwDs. Besides, PwDs are part of a community that needs to be assisted so that they can worship in comfort with the others. They also have equal rights and opportunities to live like other community members.

126-131

Authors: Adriana Tokar, Arina Negoițescu, Dan Negoiţescu, Marius Adam

From the point of view of the energy efficiency improvement and environmental protection, the recovery of waste heat from thermal systems is a necessity. The heat recovered through an economizer is a viable solution in order to achieve energy savings. For this reason, the article deals with a solution for recovering a quantity of thermal energy exhausted into the atmosphere through the dyeing/drying booths (DDB) burners stove pipes at an economic agent. The study illustrates the importance of recovering heat from flue gases in order to reduce pollutant emissions.