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Research ArticleOpen accessEvery word in the titleDialectic Form Finding of Structurally Integrated Adaptive StructuresL. Rhode-Barbarigos, V. Charpentier, S. Adriaenssens, O. BaverelStructural engineering, prompted by advances in mechanics and computing as well as design principles such as sustainability and resilience, is evolving towards adaptive structures. Adaptive structures are structures that use active components to change shape and properties in response to their environment and/or to their users' desires. Form-found structures, such as tensegrity and shell structures, can be designed to accommodate … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 4 · 6 Jul 2015 · 7,850 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDevelopment of a Magnetorheological Finishing Machine for Small-Bore Part of Irregular Shape and Experimental StudyWang Tingzhang, Chen Mingjun, Liu Henan, Xu JiangMagnetorheological finishing machine tool with small ball-end permanent-magnet polishing head is proposed as a method to solve the problem that small-bore parts of irregular shape with small curvature radius concave surface cannot be polished by traditional magnetorheological finishing machine tool. The four-axis linkage magnetorheological finishing machine tool with modular open numerical system and easy-operating man-machine interactive interface is developed. Then … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 3 · 26 Jun 2015 · 7,693 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFracture Initiation at the Zirconia/Veneer Interface-A Finite Element SimulationMirsayar M. M., A. T. SamaeiZirconia/veneer bilayered components are extensively used in dental restoration technology to improve resistance of tooth's surface from decay. The direction of the fracture propagation at the interface of zirconia and veneer is investigated in this study. Finite element analysis is performed on a bi-material four point bend specimen in different geometries and the fracture initiation angle is obtained using Maximum … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 3 · 8 Jun 2015 · 7,567 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFinite Element Formulation for Active Composite LaminatesDragan Marinkovic, Manfred ZehnSmart structures are characterized by a synergistic integration of active materials into a passive structure connected by a control system to enable an automatic adaptation to changing environmental conditions. Piezoelectric materials are widely used as distributed sensors and actuators in smart structures, where especially hybrid composites - a combination of fiber-reinforced and piezoelectric laminae - are very powerful smart material … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 3 · 2 Jun 2015 · 7,778 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleProfitability and Financial Sustainability Analysis in Italian Aquaculture Firms by Application of Economic and Financial MarginsMattia Iotti, Giuseppe BonazziAgricultural Firms operating in the aquaculture sector in Italy are often characterized by high investment and high capital intensity. In fact, these companies need to develop structures and breeding systems to generate adequate cash flow to repay their investment in fixed assets. In addition, the biological cycle of breeding further extends the need for capital, in this case to finance … …American Journal of Agricultural and Biological Sciences, Vol. 10, Issue 1 · 2 Apr 2015 · 8,436 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThree Dimensional Investigation of Mode I Stress Intensity Factor Variations in Crack Front Using Finite Element MethodM. M. MirsayarOverall failure may occur in many engineering structures due to the initiation and growth of cracks. Stress intensity factors are extensively used to investigate crack growth in Linear Elastic Fracture Mechanics (LEFM). In many cracked specimens, the stress singularity varies through the thickness and therefore, investigation of stress intensity factor variation in crack front and determination of its maximum value … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 1 · 26 Jan 2015 · 7,331 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleESTIMATION OF FINGERPRINT ORIENTATION FIELD BY UTILIZING PRIOR KNOWLEDGE AND SELF-ORGANIZING MAPSri Suwarno, Subanar, Agus Harjoko, Sri HartatiThis study proposes a new method of estimating fingerprint orientation field by utilizing prior knowledge of fingerprint images and Self-Organizing Map (SOM). The method is based on the assumption that fingerprint images have some common properties that can be systematized to build prior knowledge. In this method, each fingerprint image was divided into 16 regions equally and the regions were … …Journal of Computer Science, Vol. 10, Issue 12 · 24 Dec 2014 · 8,383 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleToxicological Consequences of Di-N-Butyl-Phthalate (DBP) on Health of Nile Tilapia FingerlingsEhsan H. Abu Zeid, Al Shimaa A. KhalilPhthalic Acid Esters (PAEs) are mainly used in the plastics industry as adhesives and plasticizers. Di-n-Butyl Phthalate (DBP) is one of the important members in the family of PAEs was listed as environmental priority pollutants by the US Environmental Protection Agency. The objective of this study was to evaluate the toxicological consequences in Nile Tilapia Oreochromis niloticus L. fingerlings, exposed … …American Journal of Animal and Veterinary Sciences, Vol. 9, Issue 4 · 24 Dec 2014 · 8,466 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleON THE ABSENCE OF ANTIMATTER FROM THE UNIVERSE, DARK MATTER, THE FINE STRUCTURE PARAMETER, THE FLUCTUATIONS OF THE COSMIC MICROWAVE BACKGROUND RADIATION AND THE TEMPERATURE DIFFERENCE BETWEEN THE NORTHERN AND SOUTHERN HEMISPHERE OF THE UNIVERSEEmmanuil ManousosThe theory of selfvariations correlates five cosmological observations considered to be unrelated by the physical theories of the previous century. The absence of antimatter from the Universe, the Dark Matter, the slight variation of the fine structure parameter, the temperature fluctuations of the cosmic microwave background radiation and the temperature difference between the northern and southern hemisphere of the Universe … …Physics International, Vol. 5, Issue 1 · 28 Nov 2014 · 8,881 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleINTEREST COVERAGE RATIOS (ICRs) AND FINANCIAL SUSTAINABILITY: APPLICATION TO FIRMS WITH BOVINE DAIRY LIVESTOCKGiuseppe Bonazzi, Mattia IottiAgricultural firms with bovine dairy livestock are characterized by high investments in capital equipment and this is determined by the biological cycle of production, which requires large investments in land, facilities and bovine herd. These large investments require funding from equity capital or debt capital, which generates financial costs. Therefore, it is necessary to assess not only the profitability of … …American Journal of Agricultural and Biological Sciences, Vol. 9, Issue 4 · 15 Oct 2014 · 7,652 accessesView PDFCite