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361 articles for “Mechanical”

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Research ArticleOpen accessIn the keywordsPreparation of Rosemary Collagen Chitosan Blend Membrane Using Response Surface Methodology (RSM)Ming He, Yuhan Zhai, Yuqing Zhang et al.The present research provided a formula for the optimization of rosemary/collagen/chitosan blend membrane. Rosemary Extract (RE) was used as additive and membrane was prepared using tensile strength, elongation at break and elongation length as the indexes. The results of single factor experiment showed that the addition ratio of collagen to chitosan, additive content, glycerol content and drying temperature all affected … …American Journal of Biochemistry and Biotechnology, Vol. 17, Issue 4 · 22 Nov 2021 · 6,244 accessesView PDFCite
Research ArticleOpen accessIn the keywordsInverse Kinematics of a Stewart PlatformRelly Victoria Virgil Petrescu, Raffaella Aversa, Antonio Apicella et al.The development and diversification of machines and mechanisms with applications in all fields require new scientific researches for the systematization and improvement of existing mechanical systems by creating new mechanisms adapted to modern requirements, which involve increasingly complex topological structures. The modern industry, the practice of designing and building machinery is increasingly based on the results of scientific and applied … …Journal of Mechatronics and Robotics, Vol. 2, Issue 1 · 10 Mar 2018 · 14,801 accessesView PDFCite
Research ArticleOpen accessIn the keywordsGeometry and Inverse Kinematic at the MP3R Mobile SystemsRelly Victoria Virgil Petrescu, Raffaella Aversa, Antonio Apicella et al.The development and diversification of machines and mechanisms with applications in all fields require new scientific researches for the systematization and improvement of existing mechanical systems by creating new mechanisms adapted to modern requirements, which involve increasingly complex topological structures. The modern industry, the practice of designing and building machinery is increasingly based on the results of scientific and applied … …Journal of Mechatronics and Robotics, Vol. 1, Issue 2 · 13 Dec 2017 · 6,603 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSpeeds and Accelerations in Direct Kinematics to the MP3R SystemsRelly Victoria Virgil Petrescu, Raffaella Aversa, Antonio Apicella et al.Today, robots and mechatronic systems are constantly playing an essential role in our lives, being a key link in the automotive industry, without which it can no longer be conceived. If the robots initially started in the machine building industry to the imperious demands of the car king to have a growing production fast and steadily, helping the logarithmic progression … …Journal of Mechatronics and Robotics, Vol. 1, Issue 2 · 20 Dec 2017 · 6,488 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSynthesis of Optimal Trajectories with Functions Control at the Level of the Kinematic Drive CouplingsRelly Victoria Virgil Petrescu, Raffaella Aversa, Antonio Apicella et al.The development and diversification of machines and mechanisms with applications in all fields require new scientific researches for the systematization and improvement of existing mechanical systems by creating new mechanisms adapted to modern requirements, which involve increasingly complex topological structures. The modern industry, the practice of designing and building machinery is increasingly based on the results of scientific and applied … …Journal of Mechatronics and Robotics, Vol. 1, Issue 2 · 13 Dec 2017 · 6,383 accessesView PDFCite
Research ArticleOpen accessIn the keywordsDynamics of Mechanisms with Cams Illustrated in the Classical DistributionRelly Victoria Virgil Petrescu, Raffaella Aversa, Bilal Akash et al.The paper presents an original method to determine the general dynamics of rotating cam and lifting, customized to flat-plate mechanism. First, the dynamic cinematic is presented. Then the Lagrange equation is resolved and with an original dynamic model with a degree of freedom with variable internal damping the dynamic analysis of two models is then made. The mechanisms presented, scientifically … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 2 · 5 Jun 2017 · 8,497 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOsmotic Tension, Plasticization and Viscoelastic response of amorphous Poly-Ether-Ether-Ketone (PEEK) equilibrated in humid environmentsAversa Raffaella, Apicella AntonioDynamic-Mechanical Analysis (DMA), Differential scanning Calorimetry (DSC) and water moisture sorption-desorption kinetics and equilibria have been parallely investigated to monitoring the environmental and thermal sensitivity of amorphous thermoplastic Poly-Ether-Ether-Ketone (PEEK). Morphological modification occurring in PEEK during the calorimetric and thermo-mechanical characterizations and the hygrothermal stability are presented. An interpretation based on the free energy of mixing of a polymer chains … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 3 · 14 Jul 2016 · 8,466 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCharacterization of Recycled Asphalt Pavement (RAP) for Use in Flexible PavementAhmed Ebrahim Abu El-Maaty, Abdulla Ibrahim ElmohrDue to economical reasons and the need for environmental conservatism, there has been an increasing shift towards the use of Recycled Asphalt Pavement (RAP) materials in the pavement construction industry. The majority of HMA mixtures in Egypt are produced only from virgin materials although there are about 4 million tons per year of reclaimed asphalt materials, due to continuous pavement … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 2 · 20 Jun 2015 · 9,216 accessesView PDFCite
Research ArticleOpen accessIn the keywordsTHE HIGH VOLUME REUSE OF HYBRID BIOMASS ASH AS A PRIMARY BINDER IN CEMENTLESS MORTAR BLOCKCheah Chee Ban, Noor Shazea Ahmad Nordin, Part Wei Ken et al.High Calcium Wood Ash (HCWA) and Pulverised Fuel Ash (PFA) are by-products from the wood biomass and coal energy production which are produced in large quantity with combined annual production of 500 million tonnes. This poses a serious problem for disposal of the waste material especially at places where land is scarce. The prescribed study was aimed to examine the … …American Journal of Applied Sciences, Vol. 11, Issue 8 · 29 May 2014 · 7,168 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Effect of Water on The Strength of Building StonesBellopede Rossana, Marini PaolaProblem statement: Water is one of the main causes of stone decay and the presence of water alone inside a stone could cause a decrease in its mechanical strength. In order to study the effect of water on the mechanical strength of stones, three Italian stones, which have historically been used for balconies, have been studied: Pietra di Luserna, Pietra … …American Journal of Environmental Sciences, Vol. 8, Issue 2 · 17 Mar 2012 · 7,035 accessesView PDFCite