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Jul 16, 2018Open    AccessArticle

The Impacts of Crude Oil Exploitation on Soil in Some Parts of Ogoni Region, Rivers State, Southern Nigeria

Inah Eteng Okon, Chima Okoko Ogba
The study examined the impacts of crude oil exploitation on the soil environment of Ogoni region and also identified action plans for the future management of the region. Composite soil samples were collected at two depths: 0 - 15 cm (surface soils) and 15 - 30 cm (subsurface soils) along different positions of landscape in the four study locations. Samples were analysed in the laboratory within 5 days of collection. ANOVA was use
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Jul 16, 2018Open    AccessArticle

Production of Tea from Turkey Berry

Adonu Regina, Amoah Millicent, Mensah Eric
Tea is consumed for different reasons and by different people around the world. Most people are increasingly becoming aware of the benefits of consuming herbal beverages, hence the need for production of tea from health and medicinal plants. This work was aimed to produce tea from Turkey berry and access the acceptance of Turkey berry tea in when compared with other tea product on the market. Sensory evaluation was done on a five-
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Jul 16, 2018Open    AccessArticle

Experimental and Numerical Study on Thermal Conductivity of Rice Husk Filled Epoxy Composites

Ramesh Chandra Mohapatra
In the present work, thermal conductivity of rice husk (200 μm mesh size) filled epoxy composites has been studied experimentally & numerically. In this study, a successful fabrication of a rice husk filled epoxy composite with different filler content is possible by hand lay-up technique. An experimental approach was used to determine the thermal conductivity of rice husk filled epoxy composites using Lee’s apparatus. The result
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Jul 16, 2018Open    AccessArticle

Studying the Changes of an Optimal Trajectory

Ahmed Mohamed Mohamed El-Sayed
This paper provides an extension to an optimal control problem using the negative logarithm of deterioration and spoilage function as total cost. This function must be minimized at the end of planning period depending on the alternative quadratic exponential form. The co-state variable   has negative values along the optimal trajectory according to the Pontryagin Minimum Principle (PMP). The different values of this co-state
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Jul 13, 2018Open    AccessArticle

The Association between Visceral Fat, Dietary Patterns, and Comorbidities

Louay Labban, Zeina Malek
Visceral fat is technically the excess accumulation of intra-abdominal adipose tissue. This type of fat is stored further underneath the skin than subcutaneous fat and it’s actually wrapped around major organs, including liver, pancreas and kidneys. Studies have shown that visceral fat plays a distinctive and potentially dangerous role affecting hormones function and it is also associated with
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Jul 13, 2018Open    AccessArticle

Effect of Foliar Applied Urea on Growth and Yield of Sunflower (Helianthus annuus L.)

Rajesh Kumar Oad, Muhammad Ali Ansari, Jagdesh Kumar, Dilpat Rai Menghwar
A field study was carried out during 2012-13 at Sindh Agriculture University, Tandojam, Pakistan, geographically latitude 25°N and longitude 68°E, to assess the effect of foliar applied urea on the growth and yield of sunflower. The experiment was laid out in a three-replicated Randomized Complete Block Design. Five treatments were tested against sunflower variety Hysun-33 which included: T1
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Jul 13, 2018Open    AccessArticle

Developing a Methodology for Determining Design and Operating Requirements for Contracting Tunnel Works

Nikolaos Vagiokas
Directive 2004/54/EC [1] on minimum safety requirements for tunnels in the trans-European road network sets the bases for establishing an acceptable safety level for tunnel users across EU member states. Furthermore, many EU member states enforce stricter safety requirements for tunnels in their territory. The lack of a methodology for determining design and operating requirements for tunnels leads many times to an expensive over-
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Jul 11, 2018Open    AccessArticle

Numerical Modeled Static Stress-Deformed State of Parallel Pipes in the Deformable Environment

Ismail Ibrahimovich Safarov
The paper considers the static pressure of the environment on the parallel pipe. The environment is elastic and homogeneous bodies. To determine the ambient pressure, the finite element method is used. An algorithm was developed and a computer program was compiled. Based on the compiled program, numerical results are obtained. The numerical results obtained for two to five parallel pipes are compared wit
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Jul 11, 2018Open    AccessArticle

A Modified Limberg Flap versus Z Plasty Flap Technique in Management of Recurrent Pilonidal Disease: A Comparative Prospective Study

Asmaa Gaber R., Mohamed Yousef A., Mohamed Abdel Shafy Mohamed, Abd-El-Aal A. Saleem, Hassan A. Abdallah, Hamdy M. Husein
Background: There are controversies about the etiology and management of recurrent pilonidal sinus. The numbers of techniques are testament in treating pilonidal sinus (PNS) and no single procedure is superior in all aspects. Aim of the study: The aim of this study was to compare two operative procedures (modified Limberg flap ver
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Jul 09, 2018Open    AccessArticle

Threshold Effects of R&D Intensity on Enterprise Performance from the Perspective of Scientific Research Achievements Transformation Ability

Yuequn Wei, Guiping Bao
Based on the listed company data of high-tech enterprise of manufacturing industry from year 2012 to 2016, this paper analyzed the no-linear effect of R&D intensity on firm performance with different ability of R&D achievements transformation. The empirical results show that the R&D input intensity has a double threshold effect on the capability of R&D achievement conversion. When the conversion ability of R&D achievement is lower
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