304 research outputs found

    Using wind turbines in high-rise buildings in the development of sustainable architecture (case study: Kish Island)

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    The increasing consumption of fossil fuels as limited sources of energy and its destructive effect on the environment has drawn many people attention to the use of renewable energy and in the meantime, taking advantage of the renewable energy of wind to produce clean and low-cost energy is one of the most common options throughout the world, however, due to the growing concentration of population and economic activity in contemporary cities and for increasing high-rise buildings in order to answer the problem cause irreparable damage to the environment which in order to protect the God-given natural resources, reducing environmental pollution and reducing energy consumption, using wind turbines for wind energy and converting it into mechanical and electrical energy are objectives of sustainable development plays a major role in the housing sector. Since the shallow waters of the Persian Gulf and coasts of this region are great places for installing wind turbines, in this regard, this study by studying documents and field studies to evaluate how the use of wind energy in high-rise buildings of these areas in order to maintain the environmental and energy efficiency leads to better planning for the construction of high-rise on Kish island in order to achieve the objectives of sustainable development.Keywords: Renewable Energy, Wind Energy, Wind Turbine, High-Rise Buildings, Kish Island, Sustainable Architectur

    First molecular identification of Sarcocystis miescheriana (Protozoa, Apicomplexa) from wild boar (Sus scrofa) in Iran

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    Sarcocystis isolate obtained from the thigh muscle of a wild boar (Sus scrofa), captured from Gilan Province, northern Iran, was subjected to molecular analysis. Genomic DNA was obtained using a DNA extraction tissue kit and Polymerase chain reaction (PCR) for amplification of the 18S ribosomal DNA region yielded an 842. bp DNA band on agarose gel. Analysis of DNA sequencing by BLAST confirmed the isolate as Sarcocystis miescheriana and the sequence was deposited in GenBank by Accession No. GU395554. This is the first molecular identification of an isolate of S. miescheriana in Iran. © 2010 Elsevier Inc

    Deep learning-based 3D local feature descriptor from Mercator projections

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    Point clouds provide rich geometric information about a shape and a deep neural network can be used to learn effective and robust features. In this paper, we propose a novel local feature descriptor, which employs a Siamese network to directly learn robust features from the point clouds. We use a data representation based on the Mercator projection, then we use a Siamese network to map this projection into a 32-dimensional local descriptor. To validate the proposed method, we have compared it with seven state-of-the-art descriptor methods. Experimental results show the superiority of the proposed method compared to existing methods in terms of descriptiveness and robustness against noise and varying mesh resolutions

    A light-front coupled cluster method

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    A new method for the nonperturbative solution of quantum field theories is described. The method adapts the exponential-operator technique of the standard many-body coupled-cluster method to the Fock-space eigenvalue problem for light-front Hamiltonians. This leads to an effective eigenvalue problem in the valence Fock sector and a set of nonlinear integral equations for the functions that define the exponential operator. The approach avoids at least some of the difficulties associated with the Fock-space truncation usually used.Comment: 8 pages, 1 figure; to appear in the proceedings of LIGHTCONE 2011, 23-27 May 2011, Dalla

    Anti-Acanthamoeba effects of silver and gold nanoparticles and contact lenses disinfection solutions

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    Background: This study aimed to investigate the anti-Acanthamoeba effects of the most used marketed disinfecting solutions in Iran. Moreover, the efficacy of some nano-compounds was tested against pathogenic Acanthamoeba. Methods: The present study was conducted in the School of Public Health, Tehran University of Medical sciences, Tehran, Iran during 2015-2016. Cysts of Acanthamoeba T4 genotype (7 x 104/ml) mixed at the equal volume with contact lens solutions including Opti-free, Ginza, ReNu, Maxima, Light, and Cyclean for the recommended time by the manufacturers. Nano-silver and nano-gold compounds were also treated with the amoebae. Chlorhexidine 0.02 and normal saline were used as positive and negative controls, respectively. Dead and alive amoebae were determined using vital stain and suspension was cultured in non-nutrient agar. The entire process was repeated at least three times. Results: In none of the solutions in the manufacturer's brochure recommended time, full cytotoxic effect was observed on the cysts of Acanthamoeba. Opti free express solution destroyed the cysts after 6 days. Nanosilver and nano-gold compounds showed no cytotoxic effect on the cysts of Acanthamoeba. Conclusion: None of the Nanoparticles compounds as well as contact lenses disinfecting solutions which studied was effective on Acanthamoeba cysts in the manufacturer's brochure recommended time. However, continuing study on Nano-silver and Nano-gold compounds to find effective ingredients against Acanthamoeba are highly recommended. © 2018, Tehran University of Medical Sciences (TUMS). All rights reserved

    Predictions for p+p+Pb Collisions at sNN=5\sqrt{s_{NN}} = 5 TeV: Comparison with Data

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    Predictions made in Albacete {\it et al} prior to the LHC p+p+Pb run at sNN=5\sqrt{s_{NN}} = 5 TeV are compared to currently available data. Some predictions shown here have been updated by including the same experimental cuts as the data. Some additional predictions are also presented, especially for quarkonia, that were provided to the experiments before the data were made public but were too late for the original publication are also shown here.Comment: 55 pages 35 figure

    Renormalization of Hamiltonian Field Theory; a non-perturbative and non-unitarity approach

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    Renormalization of Hamiltonian field theory is usually a rather painful algebraic or numerical exercise. By combining a method based on the coupled cluster method, analysed in detail by Suzuki and Okamoto, with a Wilsonian approach to renormalization, we show that a powerful and elegant method exist to solve such problems. The method is in principle non-perturbative, and is not necessarily unitary.Comment: 16 pages, version shortened and improved, references added. To appear in JHE
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