Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2738

Table of Content: 25 September, 2013; 8(36)

September 2013

Adaptive bandwidth allocation for call-level quality-of-service (QoS) in wireless mobile networks

Different quality-of-service (QoS) required types of multimedia services and need a guaranteed service rate in wireless multimedia networks. When the number of user arrivals increases, bandwidth degradations may occur due to limited bandwidth nature of cellular wireless networks. The bandwidth that should be assigned to user cannot be met for QoS provisioning in congested network. In this paper, a priority-based call...

Author(s): Aytül BOZKURT  

September 2013

Evaluation of the productivity of soil amended with different animal wastes in an acid ultisol at Abakaliki, Southeast Nigeria

An experiment was carried out in order to evaluate the productivity of soil amended with different animal wastes at the Teaching and Research Farm at the Faculty of Agriculture and Natural Resources Management, Ebonyi State University, Abakaliki. The field was laid out in randomized complete block design (RCBD) comprising of poultry droppings (PD), swine waste (SW), goat droppings (GD), cow dung (CD) and control (c)...

Author(s): Nwite J. N., Okolo C. C. and Ezeaku, P. I.

September 2013

Effect of crop fortification with pulse sprout extract on crop growth and seed yield in rice var Co 48

Rice is the staple food for over half of the Indian population, hence great emphasis has to be laid on ways and means to fortify seeds organically for better seed vigour. Seed fortification is one of the important seed invigoration treatment. Germinated grains are good sources of ascorbic acid, riboflavin, choline, thiamine, tocopherols and pantothenic acid which increases the nutritional quality. Extract has been...

Author(s): Jayanthi M., R. Umarani, and V. Vijayalakshmi,

September 2013

Wear resistance in hardfacing applied in substrate SAE 1020 using welding process Gas Tungsten Arc Welding (GTAW) alloy Stellite 6 in powder form

This article describes an innovative application of hardfacing using Gas Tungsten Arc Welding (GTAW) process with alloys in powder form incorporated directly into the weld puddle. Stellite 6 alloy was used on the substrate of SAE 1020 steel mainly due to wear resistance. The good wear resistance is due to the characteristics of Co-Cr carbide dispersed in a matrix alloy deposited. Vickers hardness data,...

Author(s): Paulo Cezar Moselli, Marcelo Falcão de Oliveira and João Roberto Sartori Moreno