Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2758

Table of Content: 12 November, 2012; 7(44)

November 2012

Review of applications of partial differential equations for image enhancement

Image restoration and enhancement are important parts of digital image processing, belonging to the early visual image processing problems. Image pre-processing is the necessary preliminary work of image analysis, such as filtering to reduce image noise and to enhance the image edges. The image enhancement technique plays an important role in improving image quality and is good for image post-processing e.g. image...

Author(s): Yuanfeng Jin, Tinghuai Ma, Donghai Guan, Weiwei Yuan and Chengmin Hou

November 2012

Effect of gastric symptoms, age and gender on quality of life

Digestive symptoms are the most common and frequent symptoms being reported. It is difficult to measure their effects on quality of life, as they varied by age and gender. Therefore, our aim was to determine the effect of gastric symptoms on quality of life and to explore their relationship with age and gender. A secondary analysis of an original pragmatic randomized trial with repeated measurements was conducted in...

Author(s): Hammad Ali Qazi

November 2012

Antioxidant activity of bamboo-leaf extracts from the species Dendrocalamopsis oldhami

The antioxidant enzymatic activities of Dendrocalamopsis oldhami bamboo-leaf extracts (BLE) in cholesterol-fed rats and an index of lipid peroxidation were determined. In the BLE groups, compared with the control group, significant decrease was observed in superoxide dismutase (SOD) activity in the livers and kidneys, catalase (CAT) activity in the kidneys, and glutathione peroxidase (GSH-Px) activity in...

Author(s): Zhao-Lin Lv, Xi Lin, Zhi-Hui Miao, Hong-Xuan Guo, Jun-An-Hong Wang, Mei-Ling Lei, Yue Pan and Bo-Lin Zhang,

November 2012

Experimental investigation on centrifugal casting of 5500 alloy: A Taguchi approach

Design of experiments has been used, to study the influence of process parameters on the mechanical properties during centrifugal casting of aluminum alloy (5500). Taguchi method of design of experiments was employed to optimize the process parameters and to increase the mechanical properties such as UTS, elongation, BHN. The investigation has indicated that increase in pouring temperature reduces mechanical properties...

Author(s): P. Shailesh, B. Praveen Kumar, S. Sundarrajan and M. Komariahia

November 2012

Determining the knowledge levels of midwives about vaccines in Sivas, Turkey

This study aims to determine the knowledge levels and incorrect knowledge of midwives regarding vaccination and it increase the efficiency of vaccination through providing necessary training. This is a cross-sectional study. The material of the study included midwives (n = 93) from primary health care centres, state hospital and university hospital in a city center. A survey was conducted to obtain...

Author(s): Özgür Alparslan, Yeltekin Demirel and Adnan Ayvaz

November 2012

Effects of fluorine incorporation on the microstructure and optical properties of ZnO thin films synthesized by Sol-gel technique

Fluorine doped Zinc oxide (ZnO) [FZO] transparent conducting thin films were deposited by sol-gel spin coating method. Zinc acetate and amonium fluoride were used as precursor solution materials. Microstructural, morphologycal, and optical properties of the films were investigated as a function of flourine (F) doping ranging from 0 to 3.5% mole. From x-ray diffraction (XRD) patterns the films...

Author(s): Eyup Fahri Keskenler, Guven Turgut, Serdar Aydin and Seydi Dogan

November 2012

Entropy based assessment and palmer drought severity index of drought analysis

Drought is one of the most important natural events. Evaluation of drought is of great importance because it is influential in many areas like water resources projects and agricultural production; it has various social and economical consequences and it is closely related to the economy, health, psychology and commerce of the society. To be able to take precautions against the dangers of drought, knowledge and...

Author(s): Ülker Güner Bacanli