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| 1 | An error-free protocol for quantum entanglement distribution in long-distance quantum communication显示文摘Quantum entanglement distribution is an essential part of quantum communication and computation protocols. Here, linear optic elements are employed for the distribution of quantum entanglement over a long distance. Polarization beam splitters and wave plates are used to realize an error-free protocol for broadcasting quantum entanglement in optical quantum communication. This protocol can determine the maximum distance of quantum communication without decoherence. Error detection and error correc-tion are performed in the proposed scheme. In other words, if there is a bit flip along the quantum channel, the end stations (Alice and Bob) can detect this state change and obtain the correct state (entangled photon) at another port. Existing general error detec-tion protocols are based on the quantum controlled-NOT (CNOT) or similar quantum logic operations, which are very difficult to implement experimentally. Here we present a feasible scheme for the implementation of entanglement distribution based on a linear optics element that does not need a quantum CNOT gate. | SALEMIAN Shamsolah MOHAMMADNEJAD Shahram | 2011 | Chinese Science Bulletin2011，56，7： | 12 |
| 2 | GPGPU-parallelised hybrid finite-discrete element modelling of rock chipping and fragmentation process in mechanical cutting显示文摘Mechanical cutting provides one of the most flexible and environmentally friendly excavation methods.It has attracted numerous efforts to model the rock chipping and fragmentation process,especially using the explicit finite element method(FEM) and bonded particle model(BPM),in order to improve cutting efficiency.This study investigates the application of a general-purpose graphic-processing-unit parallelised hybrid finite-discrete element method(FDEM) which enjoys the advantages of both explicit FEM and BPM,in modelling the rock chipping and fragmentation process in the rock scratch test of mechanical rock cutting.The input parameters of FDEM are determined through a calibration procedure of modelling conventional Brazilian tensile and uniaxial compressive tests of limestone,A series of scratch tests with various cutting velocities,cutter rake angles and cutting depths is then modelled using FDEM with calibrated input parameters.A few cycles of cutter/rock interactions,including their engagement and detachment process,are modelled for each case,which is conducted for the first time to the best knowledge of the authors,thanks to the general purpose graphic processing units(GPGPU) parallelisation.The failure mechanism,cutting force,chipping morphology and effect of various factors on them are discussed on the basis of the modelled results.Finally,it is concluded that GPGPU-parallelised FDEM provides a powerful tool to further study rock cutting and improve cutting efficiencies since it can explicitly capture different fracture mechanisms contributing to the rock chipping as well as chip formation and the separation process in mechanical cutting.Moreover,it is concluded that chipping is mostly owed to the mix-mode Ⅰ-Ⅱ fracture in all cases although mode Ⅱ cracks and mode Ⅰ cracks are the dominant failures in rock cutting with shallow and deep cutting depths,respectively.The chip morphology is found to be a function of cutter velocdty,cutting depth and cutter rake angle. | Mojtaba Mohammadnejad Sevda Dehkhoda Daisuke Fukuda Hongyuan Liu Andrew Chan | 2020 | Journal of Rock Mechanics and Geotechnical Engineering2020，12，2： | 5 |
| 3 | Improvement in IBC-silicon solar cell performance by insertion of highly doped crystalline layer at heterojunction interfaces显示文摘By inserting a thin highly doped crystalline silicon layer between the base region and amorphous silicon layer in an interdigitated back-contact(IBC) silicon solar cell, a new passivation layer is investigated. The passivation layer performance is characterized by numerical simulations. Moreover, the dependence of the output parameters of the solar cell on the additional layer parameters(doping concentration and thickness) is studied. By optimizing the additional passivation layer in terms of doping concentration and thickness, the power conversion efficiency could be improved by a factor of2.5%, open circuit voltage is increased by 30 mV and the fill factor of the solar cell by 7.4%. The performance enhancement is achieved due to the decrease of recombination rate, a decrease in solar cell resistivity and improvement of field effect passivation at heterojunction interface. The above-mentioned results are compared with reported results of the same conventional interdigitated back-contact silicon solar cell structure. Furthermore, the effect of a-Si:H/c-Si interface defect density on IBC silicon solar cell parameters with a new passivation layer is studied. The additional passivation layer also reduces the sensitivity of output parameter of solar cell to interface defect density. | Hadi Bashiri Mohammad Azim Karami Shahramm Mohammadnejad | 2017 | Chinese Physics B2017，26，10： | 3 |
| 4 | Water pinch analysis in oil refinery using regeneration reuse and recycling consideration显示文摘 | S. Mohammadnejad G.R. Nabi Bidhendi N. Mehrdadi | 2010 | Desalination2010，，1： | 1 |
| 5 | Association between vitamin D receptor gene polymorphisms and type 1 diabetes mellitus in Iranian population显示文摘 | Mohammadnejad Z Ghanbari M Ganjali R | 2012 | Mol Biol Rep2012，39，： | 1 |
| 6 | An extended finite element method for hydraulic fracture propagation in deformable porous media with the cohesive crack model 显示文摘 | Mohammadnejad T Khoei A R | 2013 | Finite Elements in Analysis and Design2013，73，1： | 1 |
| 7 | Simultane- ous spectrofluorimetric determination of levodopa and pro- pranolol in urine using feed-forward neural networks assis- ted by principal component analysis显示文摘 | Madrakian T Afkhami A Mohammadnejad M | 2009 | Talanta2009，78，3： | 1 |
| 8 | Development and characterization of enzyme-linked immunosorbent assay for aflatoxin B1 measurement in urine sample using penicillinase as label显示文摘 | PAKNEJAD M JAVAD RASAEE M MOHAMMADNEJAD J | 2008 | J Toxicol Sci2008，33，5： | 1 |
| 9 | A New Com petitive enzyme linked immunosorbent assay (MRP83-CA15 3) for MUC1 measurement in breast cancer显示文摘 | Mohammadnejad J Rasaee M J Saqhafi B | 2006 | Journal of Immu noassay and Immunochemistry2006，27，2： | 1 |
| 10 | Modified-DBR-based semi-omnidirectional multilayer anti-reflection coating for tandem solar cells显示文摘In this paper,multilayer antireflection coatings are designed by modifying the thickness of two and three paired layer distributed Bragg reflector(DBR)structure.Our proposed DBR-based structures show antireflection behaviors,in spite of the reflection treatment in traditional DBR structures.Firstly,the proposed structures are designed to be equivalent to the theoretical ideal triple-layer(TL)antireflection coating(ARC).Therefore,the problem of finding a suitable material for the middle layer of triple structure is solved.Simulation results show the significant equivalency for the reflectance of proposed structures to the ideal TL ARC at the same wavelengths and incident angles.Also,the design of the structure is changed in order to present the constant reflectance coefficient over a wide range of wavelengths.This structure enhances the omni-directionality of the multilayer ARC. | Ali Bahrami Shahram Mohammadnejad Nima Jouyandeh Abkenar | 2014 | Chinese Physics B2014，23，2： | 1 |
| 11 | Environmental Impact Assessment of HF Emission in South of Iran by Gaussian Atmospheric Dispersion Model显示文摘 | T.T. Moghaddam P.G. Saptarshi R.S. Gavali S. Mohammadnejad | 2011 | Journal of Environmental Science and Engineering2011，5，2： | 1 |
| 12 | Types and causes of medication errors from nurse’s viewpoint显示文摘 | Cheragi MA Manoocheri H Mohammadnejad E | 2013 | Iranian Journal of Nursing and Midwifery Research2013，18，3： | 1 |
| 13 | Delta-doped quantum wire tunnel junction for highly concentrated solar cells显示文摘We propose a novel structure for tunnel junction based on delta-doped AlGaAs/GaAs quantum wires. Higher spatial confinement of quantum wires alongside the increased effective doping concentration in the delta-doped regions extremely increase the peak tunneling current and enhance the performance of tunnel junction. The proposed structure can be used as tunnel junction in the multijunction solar cells under the highest possible thermodynamically limited solar concentration.The combination of the quantum wire with the delta-doped structure can be of benefit to the solar cells' advantages including higher number of sub-bands and high degeneracy. Simulation results show a voltage drop of 40 mV due to the proposed tunnel junction used in a multijunction solar cell which presents an extremely low resistance to the achieved peak tunneling current. | Ali Bahrami Mahyar Dehdast Shahram Mohammadnejad Habib Badri Ghavifekr | 2019 | Chinese Physics B2019，28，4： | 0 |
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