Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2763

Table of Content: 26 November, 2012; 7(46)

November 2012

Accounts of the effect of electrically charged clouds on the stable nitrogen isotope ratio and the anion concentration in cloud-based aerosols

Aerosol field sampling was conducted in the skies offshore from Malibu Beach and Santa Barbara, California, U.S.A. on 16 and 18 July, 2009, using an airplane. The samples were analyzed for nitrate and nitrite ions using ion chromatography (IC) and GC-mass spectrometry (GC-MS). The results indicate a higher stable isotopic ratio of delta 15N/14N in the aerosols collected at the cloud top of one cloud than the aerosols...

Author(s): Hidemitsu KATSURA,

November 2012

Emotional and cognitive response to placement method of background music in shopping website

Consumer on-line behaviors are more important than ever due to the high growth of on-line shopping. The main purposes of this study is to design placement methods for background music for shopping websites and examine the effects of these methods on on-line shoppers’ emotional and cognitive responses. Two placement methods of background music, that is, placement point and fade-in period for shopping...

Author(s): Chien-Jung Lai, Kang-Ming Chang, and Yu-Chao Lin

November 2012

Energy and exergy analysis of fluidized bed drying of chickpea and bean

Nowadays, drying process has taken an important role in food and agricultural production fields. Drying process is necessary to prepare the products for consumption and storage. There are various drying process techniques, point from the technological and process technique. Fluidized bed drying is usually preferred, because of high heat and mass transfer coefficient. In this work, fluidized bed was used in the...

Author(s): Ä°skender KARAGÜZEL, Erdal TEKÄ°N and Adnan TOPUZ

November 2012

Testing concrete made with cork powder and steel fibres

Nowadays, greater respect for the environment is a widespread social demand. Since the cork industry generates vast amounts of waste of approximately 20 to 30%, the harvested cork ends up as cork dust with no industrial use. It is becoming necessary to find a way to reuse or recycle this kind of residue. This paper evaluates the mechanical behavior of several samples of concrete containing cork powder (8%) and different...

Author(s): Manuel Ignacio Guerra, Andrés Juan, Julia Mª Morán, Julia García and Desirée Rodríguez

November 2012

Physico-chemical characteristics of urban sediments and factors influencing ultimate methane yields

The main objective of this study was to analyze sediments in 14 urban streams in the city of Busan, South Korea, and to evaluate their biochemical methane potentials (BMP) by use of conventional BMP tests. Then chemical oxygen demand (COD), proximate analysis, volatile solids (VS), organic carbon content and elemental analysis were conducted to determine sediment characteristics. The results showed that COD, VS and...

Author(s): Choi Boram and Lee Taeyoon

November 2012

Influence of bond parameters on deformation behaviour of reinforced concrete ties

In this study, influence of the concrete-reinforcement bond on behaviour of the reinforced concrete tie is considered. The qualitative analysis of elongation and cracking of the tie is given. An original algorithm is suggested for modelling of the elongation of the tie under pure tension. The local behaviour of the concrete-reinforcement bond is approximated by a linear model whose parameters were estimated by...

Author(s): Darius Zabulionis, Saulius Pilkavičius, Rimantas Kačianauskas and Raimondas Jasevičius