Past Issue

Analysis of economic feasibility of voip telephony in a construction company in lages-sc

This article aims to evaluate theVoip Telephonyfocused on the evaluation of it’s economic feasibilityapplied in the evaluation of aConstruction Company in Lages city. Inaddition it will be analyzed a conventional carrier. The study had about of one-year duration, using the comparative descriptive methods.The results in a satisfactory manner, reducing to 40% of the current cost by integrating VOIP solutions as a low-cost differential and satisfactory quality using all the benefits of an Asterisk server.

Analysis of tubular structure in high rise buildings

In the construction of high rise buildings, the tubular structure is more effective way of stable and economic construction. The tube system resists lateral loads i.e. wind load, earthquake load, impact loads, etc. The tube system is formed by outer perimeter tube made of closely spaced columns which acts like a dense and strong structural wall and inner core connected by spandrel beams and floor slabs with moment connections. The building behaves like a hollow cylinder cantilevered perpendicular to the ground.

Characterization of cell wall polysaccharides and cellulosic ethanol potential in genotypes of sorghum biomass

In this study, the physicochemical characterization of the cell wall polysaccharides of different genotypes of sorghum bicolor, (Sorghum bicolor (L.) Moench) were obtained using the raw biomass and after the chemical pretreatments, with the objective of this culture being a potential source for the production of cellulosic ethanol. Among the evaluated materials two hybrids brown midrib (bmr) sorghum biomass were tested compared to three conventional sorghum biomass hybrids.

Comparative analysis of leaf chlorophyll and moisture content on primary and secondary food plant of tasar silkworm antheraea mylitta drury

Cocoon crop performance through seasonal rearing of Antheraea mylitta Drury depend on the food plant variety and its nutritional status which helps the time bound agricultural works for economic advantage however the leaf production, chlorophyll and moisture content, quantity and season of the plant needs consideration in comparison with primary and secondary host plants for the commercial feasibility.

IL-10 plays a key role in the regulation of TNF-alfa mRNA expression during dna fragmentation in the nephrotoxicity generated by amphotericin b and cyclosporine

Inflammation is considered the most important cause of tissue injury in organs subjected to nephrotoxicity induced by drugs. The mechanism that triggers inflammation and organ injury remains to be elucidated, although different causes have been postulated.

A green synthesis and characterization of Zn-Al-CO3 and Ni-Al-CO3hydrotalcite catalysts by using grinding methods

The study of different types of synthesis of hydrotalcites were studied. In the current research, hydrotalciteslike Zn-Al-CO3 and Ni-Al-CO3 were synthesized using the grinding method. The reaction conditions were optimized and the best results and yields were obtained at room temperature keeping the pH constant in 30 minutes. The effect of different molar ratios of hydrotalcites were also investigated and were further characterized using XRD, FTIR, and TGA.

Plant diversity and conservation status of the kanneliya forest reserve, sri lanka

Kanneliya Forest Reserve is a low land tropical rain forest located in the Galle District, Sri Lanka. The plant diversity of Kanneliya is considered richer, even compared to the Sinharaja World Heritage Rainforest. The Ceylon Plywood Corporation had been involved in the logging of the complex from 1968 until the logging was suspended in 1988. A research was conducted to measure the diversity of plants at the Kanneliya Forest Reserve as well as to determine the recovery of the forest after logging was suspended.

Design for sustainability and life cycle assessment toward increase use of recycled aluminum: case of architectural light shelf

This study concerns the design of a light shelf applying concepts of Design for Sustainability and Life Cycle Thinking by using Life Cycle Assessment method as a tool to decision-making for the material choice. Light shelves are building devices installed in window with the goal to provide greater use of natural light. This study intends to consider the urgent need to promote the use of recycled aluminum in order to improve the use of scrap in applications that add value to this as an important raw material.