Past Issue

Containment structures are structures designed to contain a mass of soil, or urban terrain, resisting buoyancy of land and water, structural loads and any other stresses induced by adjacent structures or equipment. The construction works almost always involve containment structures, which are present in projects of roads, bridges, stabilization of slopes, plumbing, sanitation, meters etc. There are several types of containment that are designed for different needs and goals, one of which is the wire curtain.

This article presents the basic characteristics from the wood in fire situation and proposes an objective vision as for its answer on this type of disaster, specifically when its about constructions protected by the organs of the Brazilian historical heritage. The importance of the care and protection of these edifications is justified by what they represent for the community, for the culture and history of the place that they are inserted, so, this article pretends start a discussion more qualified as for the structural material very present in these buildings: the wood.

Engineered nanoparticles(ENMs) are extensively used in varied consumer products. Along the period of usage for nano-enabled products, these nano particles can be released into the environment and get accumulated in the waste streams. Accidental or deliberate release of nanoparticles in the environment results into a new type of waste which is termed as nanowaste.

The present research had as main purpose to innovate the methodology of approach of the theme on Renewable Energy emphasizing Biodiesel through a didactic sequence applied with 14 students enrolled in the 3rd year of High School, located in the city of Cajazeiras-PB/Brasil. As a methodological resource, two videos and a simulator were used. For data collection was applied a previous questionnaire and after the execution of the didactic sequence, the students answered another questionnaire to check if in fact there was significant learning on the methodology was used.

Nowadays internal spur gears are used in many industrial areas because of their numerous advantages such as reduced sliding velocity and wear, higher transmission ratio, higher running efficiency. In contrast of the external gear an internal gear is generated by pinion cutters towards inside of gear blank. In this study, bending stress of internal spur gear generated with the cutter that has asymmetric tip radius was investigated. This condition is let to use larger tip radius on one side.

Basically the technique of Current Reversal Mode (CRM) consists of applying a potential difference forward into the sensor and measuring the resultant electrical current. The next step is to apply the same potential difference backward into the sensor and re-measure the electrical current. The ratio between forward and reverse electrical currents is linearly proportional to the percentage of oxygen in the medium where the measurements are made.

A vague set is the set of objects, characterized by a truth membership function and a false membership function whose values is a continuous subinterval of [0,1] .The notion of the difference on vague sets is defined and studies various properties on them.

It was determined that, during the research “BO” ionomer enhanced a quantity of the soils waters Table aggregates. Though a quantity of aggregates in bright–grey-brown soils was 18.30%, when 30 kg of solution was applied per hectare, it was 19,0%, 22,10% in 50 kg, 24,5% in 100 kg. The analogical results have been obtained in meadow-grey soils. The bottom leaching speed of flow in bright grey-brown soils was ranging from 0,051 m/sec to 0,070 m/sec, but in meadow-grey soils it was from 0,045 m/sec. to 0,060 m/sec.

This present study aimed to determine the physical-chemical quality parameter of the cheese mozzarella produced from buffalo and bovine milk during the four seasons of the year. For that, the cheeses were obtained from two dairies located in the city of Itambé-Bahia and forwarded to the laboratory of Bromatology of the Faculty of Technology and Sciences - Campus Vitória da Conquista, for the analysis of moisture, ashes, proteins and lipids, according to methodology proposed by the Adolfo Lutz Institute (2008).

Faced with the current competitive business scenario, opportunities for increased efficiency and productivity capable of placing any industry at the level of excellence in the market are necessary. For example, production losses and costs are opportunities to standardize grease consumption in any industry in Brazil, as pointed out in the literature, through the analysis of its lubrication process.