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A novel scheme of hybrid entanglement swapping and teleportation using cavity QED in the small and large detuning regimes and quasi-Bell state measurement method

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Chinese Physics B 2016年第10期25卷 45-51页

作者： R Pakniat m K Tavassoly m H Zandi Faculty of Physics Shahid Bahonar University of Kerman Faculty of Physics Atomic and Molecular Group Yazd University Research Group of Optics and Photonics Yazd University

We outline a scheme for entanglement swapping based on cavity QED as well as quasi-Bell state measurement(quasiBSm) methods. The atom–field interaction in the cavity QED method is performed in small and large detuning *** assume two atoms are initially entangled together and, distinctly two cavities are prepared in an entangled coherent–coherent state. In this scheme, we want to transform entanglement to the atom-field system. It is observed that, the fidelities of the swapped entangled state in the quasi-BSm method can be compatible with those obtained in the small and large detuning regimes in the cavity QED method(the condition of this compatibility will be discussed). In addition, in the large detuning regime, the swapped entangled state is obtained by detecting and quasi-BSm approaches. In the continuation,by making use of the atom–field entangled state obtained in both approaches in a large detuning regime, we show that the atomic as well as field states teleportation with complete fidelity can be achieved.

关键词： entanglement swapping quantum teleportation cavity QED quasi-Bell state measurement

Characteristics of Positive Ions in the Sheath Region of magnetized Collisional Electronegative Discharges

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Plasma Science and Technology 2014年第6期16卷 552-556页

作者： m.m.HATAmI A.R.NIKNAm Physics Department of K.N.Toosi University of Technology Laser-Plasma Research Institute of shahid Beheshti University G.C.

A hydrodynamic model is used to investigate the characteristics of positive ions in the sheath region of a low-pressure magnetized electronegative discharge. Positive ions are modeled as a cold fluid, while the electron and negative ion density distributions obey the Boltzmann distribution with two different temperatures. By taking into account the ion-neutral collision effect in the sheath region and assuming that the momentum transfer cross section has a power law dependence on the velocity of positive ions, the sheath formation criterion （modified Bohm＇s criterion） is derived and it is shown that there are specified maximum and minimum limits for the ion mach number m. Considering these two limits of m, the behaviors of electrostatic potential, charged particle density distributions and positive ion velocities in the sheath region are studied for different values of ion-neutral collision frequency.

关键词： electronegative plasma hydrodynamic model magnetized plasma sheath,Bohm's criterion

Effect of Ion Concentrations on the Characteristics of a multi-Component magnetized Plasma Sheath

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Plasma Science and Technology 2009年第6期11卷 642-646页

作者： m.m.HATAmI B.SHOKRI Laser-Plasma Research Institute of shahid Beheshti University G.C.EvinTehranIran Physical Department and Laser-Plasma Research Institute of shahid Beheshti University G.C.EvinTehranIran

A hydrodynamic approach is used to investigate a three-component magnetized plasma sheath which consists of electrons and two species of positive ions. Assuming a phase space of one-dimensional spatial coordinate system and three-dimensional velocity coordinate system, the effect of different concentrations of positive ion species on some characteristics of the plasma sheath such as the velocity and density distribution of positive ion species and the electrostatic potential of this region is investigated. The calculated results show that the increase in the density ratio of positive ion species causes a decrease in both the ion velocities and the electrostatic potential of the sheath region. Also, it is shown that in the sheath region of a magnetized plasma consisting of only one positive ion species the bumps of the net density of charged particles disappears much faster. In addition, three-dimensional velocity of each positive ion species in the sheath region is plotted for different concentrations of positive ion species.

关键词： magnetized plasma plasma and electropositive plasma sheath hydrodynamic equations multi-component sheath

Comparative analysis of the complete chloroplast genome among Prunus mume,***,and ***

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Horticulture Research 2019年第1期6卷 626-638页

作者： Song Xue Ting Shi Wenjie Luo Xiaopeng Ni shahid Iqbal Zhaojun Ni Xiao Huang Dan Yao Zhijun Shen Zhihong Gao College of Horticulture Nanjing Agricultural University210095 NanjingChina Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement NanjingChina

Prunus mume *** Zucc.,*** L.,and *** *** economically important fruit trees in temperate *** species are taxonomically perplexing because of shared interspecific morphological traits and variation,which are mainly attributed to *** chloroplast is cytoplasmically inherited and often used for evolutionary *** sequenced the complete chloroplast genomes of ***,***,and *** using Illumina sequencing followed by de novo *** three chloroplast genomes exhibit a typical quadripartite structure with conserved genome arrangement,structure,and moderate *** lengths of the genomes are 157,815,157,797,and 157,916 bp,*** length of the large single-copy region(LSC)region is 86,113,86,283,and 86,122 bp,and the length of the SSC region is 18,916,18,734,and 19,028 bp;the IR region is 26,393,26,390,and 26,383 bp,*** of the three chloroplast genomes encodes 133 genes,including 94 protein-coding,31 tRNA,and eight rRNA *** gene analysis for the three species revealed that trnY-ATA is a unique gene in ***;in contrast,the gene trnI-TAT is only present in *** and ***,though the position of the gene in these chloroplast genomes *** comparative analysis of the complete chloroplast genome sequences revealed that the ORF genes and the sequences of linked regions rps16 and atpA,atpH and atpI,trnc-GCA and psbD,ycf3 and atpB,and rpL32 and ndhD are significantly different and may be used as molecular markers in taxonomic *** evolution analysis of the three species suggests that *** has a closer genetic relationship to *** than to ***.

关键词： rRNA traits analysis

筛选和转化药用野生稻TAC克隆获得耐旱水稻

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中国农业科学 2014年第8期47卷 1445-1457页

作者：刘蕊张欢欢陈志雄 shahid m.ham.ad Qasim 傅雪琳刘耀光刘向东卢永根华南农业大学亚热带农业生物资源保护与利用国家重点实验室

【目的】利用分子生物学技术建立一种可有效转移药用野生稻有利基因的方法,为进一步大量开展利用药用野生稻有利基因提供技术基础。【方法】以植物抗性相关转录因子AP2/EREBP和bZIP家族基因保守序列为探针,采用同位素α-32P对探针进行标... 详细信息

【目的】利用分子生物学技术建立一种可有效转移药用野生稻有利基因的方法,为进一步大量开展利用药用野生稻有利基因提供技术基础。【方法】以植物抗性相关转录因子AP2/EREBP和bZIP家族基因保守序列为探针,采用同位素α-32P对探针进行标记,通过Southern杂交对药用野生稻TAC文库进行第一轮筛选;所获得阳性克隆用地高辛标记的探针进行第二轮筛选;最后利用PCR方法对第二轮筛选所获得的阳性克隆进行验证。通过农杆菌介导法将阳性克隆转入栽培稻品种日本晴,利用TAC载体插入片段两端的抗性标记Hpt和SacB,通过PCR扩增检测和和Southern杂交对转化植株进行鉴定。采用PEG胁迫法和生理指标变化对转基因T2植株的芽期、苗期耐旱性进行鉴定。【结果】第一轮TAC文库筛选共获得1 073个阳性克隆,其中,以AP2/EREBP的保守序列为探针筛选出606个、bZIP为探针筛选出467个。对这些阳性克隆进行第二轮筛选,从中共获得147个阳性克隆,其中,AP2/EREBP为探针筛选出95个、bZIP为探针筛选出52个。PCR验证有103个阳性克隆能够扩增出目的片段,分别是利用AP2/EREBP设计的引物筛选出63个克隆和bZIP的40个克隆,阳性克隆得率分别为66.32%和76.92%。通过农杆菌转化,以编号为52D-m16和22D-P2(与AP2/EREBP相关)以及55R-A17、49R-O14和8-A24(与bZIP相关)的克隆转化水稻日本晴均获得转化植株,转化试验结果发现外源插入片段越大则克隆转化的成苗率越低。抗性鉴定、PCR和Southern杂交结果均证明外源片段已转入受体水稻品种日本晴中。芽期抗旱性鉴定表明R12-23、R15-41和R1-8 3份材料的耐旱性优于受体日本晴,苗期鉴定显示m63-9和R12-23的耐旱性较强。综合认为,R12-23具有较好的耐旱性。【结论】通过构建药用野生稻TAC文库并结合特异克隆筛选和遗传转化方法,可以进行有利基因的转移,结合进一步的育种,有望实现药用野生稻在育种上的利用。

关键词：药用野生稻(Oryza officinalis Wall.) TAC文库遗传转化耐旱性

Divergence and flutter instability of magneto-thermo-elastic C-BN hetero-nanotubes conveying fluid

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Acta mechanica Sinica 2020年第2期36卷 381-396页

作者： hamid m.Sedighi mechanical Engineering Department Faculty of EngineeringShahid Chamran University of AhvazAhvaz 61357-43337Iran Drilling Center of Excellence and Research Center Shahid Chamran University of AhvazAhvaz 61357-43337Iran

On the basis of finite element analysis,an eigenvalue problem is performed to examine the vibrational characteristics of a hetero-nanotube made of carbon(C)and boron nitride(BN)nanotubes in magnetic and thermal *** incorporating the assumption of nonlocal elasticity theory,the size-dependent behavior of the considered structure is also taken into *** obtained results demonstrate that the onset of the divergence and flutter instabilities may be postponed by exploiting a hetero-nanotube rather than a uniform one composed of carbon ***,it is exhibited that,in the presence of fluid flow,the mode shape configuration of nanotubes may be different from those of classical modes and therefore the later one should not be utilized in the dynamic analysis of fluid-conveying ***,it is shown that,as the temperature decreases,the natural frequencies of the system decrease in high temperature conditions and increase for the case of room temperature.

关键词： Hetero-nanotube Fluid-conveying magnetic flow Nonlocal elasticity Thermal environment

Potential Antioxidant Activities Improve Salt Tolerance in Ten Varieties of Wheat (<i>Triticum aestivum</i>L.)

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American Journal of Plant Sciences 2013年第6期4卷 69-76页

作者： Aurangzeb Rao Syed Dilnawaz Ahmad Syed mubashar Sabir shahid Iqbal Awan Asad Hussain Shah Syed Rizwan Abbas Saima Shafique Fareed Khan Atia Chaudhary Department of Chemistry University of the Poonch Rawalakot Pakistan. Department of Plant Breeding and molecular Genetics Faculty of Agriculture University of the Poonch Rawalakot Pakistan Department of Plant Breeding and molecular Genetics Faculty of Agriculture University of the Poonch Rawalakot Pakistan University of Azad Jammu and Kashmir Muzaffarabad Pakistan

The activity of antioxidative enzymes system is affected by salt stress, chlorophyll content (CHL), leaf relative water content (RWC), Na+ and K+ contents, their ratio and some oxidative stress indices were studied in leaves of ten bread wheat cultivarsSehar-06, Lu-26, NARC-09, BARC-09 and Pirsbak-09’(salt-tolerant) and Kaghan-94, Rohtas-90, Soughat-90, Shaheen-94 and Zardana-89’(salt-sensitive), grown under salinity treatments carried out in five levels (1 dS·m-1 as control, 2, 4, 8, 16 dS·m-1) via sodium chloride. Under high salt potency significant increase for activities of antioxidant enzymes such as ascorbate peroxidase (APX) and guiacol peroxidase (GPX), occured in salt tolerant varieties. meanwhile, under salinity condition the activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase (CAT) and (GPX) in sensitive cultivar were lower than control. Regarding (APX) activity there was no significant difference between salinity and control situation. Under salt stress membrane stability index (mSI) of both cultivars were negatively influenced. Hydrogen peroxide (H2O2) content of salinity sensitive cultivars was higher than control. Salt tolerant varieties had more amounts of K+ content, K+ and Na+ ratio, relative water content, yield and chlorophyll under salt conditions, and sensitive ones recorded higher Na+ content at tillering stage. The mechanism of salt stress might be achieved due to low lipid peroxidation, assumingly lower changes in membrane stability index and evasion of Na+ combination and amplified activity of antioxidant enzymes.

关键词： Antioxidant Enzymes Chlorophyll Content+/Na+ Ratio Relative Water Content Salinity Wheat

Reliability and variance-based sensitivity analysis of arch dams during construction and reservoir impoundment

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Frontiers of Structural and Civil Engineering 2019年第3期13卷 526-541页

作者： m.Houshmand KHANEGHAHI m.ALEmBAGHERI N.SOLTANI Department of Civil Engineering Shahid Beheshti UniversityTehranIran Department of Civil and Environmental Engineering Tarbiat Modares UniversityTehranIran

The static performance of arch dams during construction and reservoir impoundment is assessed taking into account the effects of uncertainties presented in the model properties as well as the loading *** arch dam is chosen as the case study;it is modeled along with its rock foundation using the finite element method considering the stage *** previous studies concentrated on simplified models and approaches,comprehensive study of the arch dam model along with efficient and state-of-the-art uncertainty methods are incorporated in this *** reliability method is performed to assess the safety level and the sensitivity analyses for identifying critical input factors and their interaction effects on the response of the *** sensitivity analysis based on improved Latin hypercube sampling is employed in this study to indicate the influence of each random variable and their interaction on variance of the *** levels of model advancement are considered for the dam foundation system:1)monolithic dam without any joint founded on the homogeneous rock foundation,2)monolithic dam founded on the inhomogeneous foundation including soft rock layers,3)jointed dam including the peripheral and contraction joints founded on the homogeneous foundation,and 4)jointed dam founded on the inhomogeneous *** each model,proper performance indices are defined through limit-state *** this manner,the effects of input parameters in each performance level of the dam are *** outcome of this study is defining the importance of input factors in each stage and model based on the variance of the dam ***,the results of sampling are computed in order to assess the safety level of the dam in miscellaneous loading and modeling conditions.

关键词： concrete arch dams reliability randomness improved Latin hypercube sampling variance-based sensitivity analysis exceedance probability Sobol index

RELATION BETWEEN INTERFACIAL WAVE INSTABILITY AND TENSILE STRENGTH OF TWO-LAYER POLYmER STRUCTURE:AN EXPERImENTAL STUDY

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Chinese Journal of Polymer Science 2010年第6期28卷 887-894页

作者： m.ham.ad m.Ranjbaran Department of mechanical Engineering Shahid Rajaee University

The existence of interfacial instability at the interface of multilayer polymeric flows is well *** article is designed mainly to provide guidelines for the development of experimental techniques for the improvement of two-layer polymer products in the polymer processing *** is done by performing a series of tensile tests on extrudate two-layer polymer melts in order to get insight into the relation between interfacial wave and mechanical properties of LLDPE/HDPE polymer *** variations of the mechanical properties have been related to the conformation of the interfacial wave so that a relationship between interface morphology corresponding to extrusion instabilities and mechanical characteristics of the interfacial strength for polymer melts extrudate is established.

关键词： Interfacial Instability Strength Wave number Extrusion