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Nano-design of ultra-efficient reversible block based on quantum-dot cellular automata

Frontiers of Information Technology & Electronic Engineering 2023年第3期24卷 447-456页

作者： seyed sajad ahmadpour Nima Jafari NAVIMIPOUR Mohammad MOSLEH Senay YALCIN Department of Computer Engineering Faculty of Engineering and Natural SciencesKadir Has UniversityIstanbul 34083Türkiye Materials and Energy Research Center Dezful BranchIslamic Azad UniversityDezful ***Iran Department of Computer Engineering Nisantasi UniversityIstanbul 34485Türkiye

Reversible logic has recently gained significant interest due to its inherent ability to reduce energy dissipation,which is the primary need for low-power digital *** of the newest areas of relevant study is reversible logic,which has applications in many areas,including nanotechnology,DNA computing,quantum computing,fault tolerance,and low-power complementary metal-oxide-semiconductor(CMOS).An electrical circuit is classified as reversible if it has an equal number of inputs and outputs,and a one-to-one relationship.A reversible circuit is conservative if the EXOR of the inputs and the EXOR of the outputs are *** addition,quantum-dot cellular automata(QCA)is one of the state-of-the-art approaches that can be used as an alternative to traditional ***,we propose an efficient conservative gate with low power demand and high speed in this ***,we present a reversible gate called ANG(ahmadpour Navimipour Gate).Then,two non-resistant QCA ANG and reversible fault-tolerant ANG structures are implemented in QCA *** suggested reversible gate is realized through the Miller ***,reversible fault-tolerant ANG is implemented by the 2DW clocking ***,the power consumption of the suggested ANG is assessed under different energy ranges(0.5Ek,1.0Ek,and 1.5Ek).Simulations of the structures and analysis of their power consumption are performed using QCADesigner 2.0.03 and QCAPro *** proposed gate shows great improvements compared to recent designs.

关键词： Nanotechnology Reversible logic Energy dissipation Quantum-dot cellular automata(QCA) Reversible gate Miller algorithm

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Biodegradable starch/poly(vinyl alcohol) film reinforced with titanium dioxide nanoparticles

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International Journal of Minerals,Metallurgy and Materials 2013年第10期20卷 1001-1011页

作者： Zahra Hejri Ali Akbar Seifkordi Ali ahmadpour seyed Mojtaba Zebarjad Abdolmajid Maskooki Department of Chemical Engineering Science and Research BranchIslamic Azad University Department of Chemical Engineering Ferdowsi University of Mashhad Department of Materials Science and Engineering Engineering FacultyShiraz University Research Institute of Food Science and Technology

Biodegradable starch/poly （vinyl alcohol）/nano-titanium dioxide （ST/PVA/nano-Ti02） nanocomposite films were prepared via a solution casting method. Their biodegradability, mechanical properties, and thermal properties were also studied in this paper. A general full factorial experimental approach was used to determine effective parameters on the mechanical properties of the prepared films. ST/PVA/TiO2 nanocomposites were characterized by scanning electron microscopy （SEM） and X-ray diffraction （XRD）. The results of mechanical analysis show that ST/PVA films with higher contents of PVA have much better mechanical properties. In thermal analysis, it is found that the addition of Ti02 nanoparticles improves the thermal stability of the films. SEM micrographs, taken from the fracture surface of samples, illustrate that the addition of PVA makes the film softer and more flexible. The results of soil burial biodegradation indicate that the biodegradability of ST/PVA/TiO2 films strongly depends on the starch proportion in the film matrix. The degradation rate is increased by the addition of starch in the films.

关键词： nanocomposite films titanium dioxide nanopaxticles biodegradability mechanical properties thermogravi-metric analysis

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Phylogeography,genetic variability and structure of Acanthamoeba metapopulations in Iran inferred by 18S ribosomal RNA sequences:A systematic review and meta-analysis

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Asian Pacific Journal of Tropical Medicine 2017年第9期10卷 855-863页

作者： Adel Spotin Hamid Reza Moslemzadeh Mahmoud Mahami-Oskouei Ehsan ahmadpour Maryam Niyyati seyed Hossein Hejazi Fatemeh Memari Jafar Noori Immunology Research Center Tabriz University of Medical SciencesTabrizIran Department of Parasitology and Mycology Faculty of MedicineTabriz University of Medical SciencesTabrizIran Department of Medical Parasitology and Mycology School of MedicineShahid Beheshti University of Medical SciencesTehranIran Department of Parasitology and Mycology School of MedicineIsfahan University of Medical SciencesIsfahanIran

Objective: To verify phylogeography and genetic structure of Acanthamoeba populations among the Iranian clinical isolates and natural/artificial environments distributed in various regions of the ***: We searched electronic databases including Medline, Pub Med, Science Direct, Scopus and Google Scholar from 2005 to 2016. To explore the genetic variability of Acanthamoeba sp, 205 sequences were retrieved from keratitis patients, immunosuppressed cases and environmental sources as of various geographies of ***: T4 genotype was the predominant strain in Iran, and the rare genotypes belonged to T2, T3, T5(Acanthamoeba lenticulata), T6, T9, T11, T13 and T15(Acanthamoeba jacobsi).A total of 47 unique haplotypes of T4 were identified. A parsimonious network of the sequence haplotypes demonstrated star-like feature containing haplogroups IR6(34.1%) and IR7(31.2%) as the most common haplotypes. In accordance with the analysis of molecular variance, the high value of haplotype diversity(0.612–0.848) of Acanthamoeba T4 represented genetic variability within populations. Neutrality indices of the 18 S ribosomal RNA demonstrated negative values in all populations which represented a considerable divergence from neutrality. The majority of genetic diversity belonged to the infected contact lens and dust samples in immunodeficiency and ophthalmology wards, which indicated potential routes for exposure to a pathogenic Acanthamoeba sp. in at-risk individuals. A pairwise fixation index(FST) was from low to high values(0.024 33–0.418 92). The statistically FST points out that T4 is genetically differentiated between north-west, north-south and centralsouth metapopulations, but not differentiated between west-central, west-south, centralsouth, and north-central ***: An occurrence of IR6 and IR7 displays that possibly a gene flow of Acanthamoeba T4 occurred after the founder effect or bottleneck experience through ecological changes or host mobility

关键词： Acanthamoeba metapopulations Genetic variability Gene flow Molecular phylogeny Iran

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