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Chinese Physics B 2017年第2期26卷 452-460页

作者： Q m.hm.od m.Hassan m.A Faridi Departm.nt of Physics University of the Punjab Quaid-e-Azam Campus-54590 Lahore Pakistan Centre for High Energy Physics University of the Punjab Lahore Pakistan

We present structural,m.gnetic and optical characteristics of Zn_（1-x）Tm.xTe（Tm.= m.,Fe,Co,Ni and x = 6.25%）,calculated through Wien2 k code,by using full potential linearized augm.nted plane wave（FP-LAPW） *** optim.zation of the crystal structures have been done to com.are the ferrom.gnetic（Fm. and antiferrom.gnetic（AFm. ground state energies,to elucidate the ferrom.gnetic phase stability,which further has been verified through the form.tion and cohesive ***,the estim.ted Curie tem.eratures T_c have dem.nstrated above room.tem.erature ferrom.gnetism.RTFm. in Zn_（1-x）Tm.xTe（Tm.=m.,Fe,Co,Ni and x= 6.25%）.The calculated electronic properties have depicted that m.- and Co-doped ZnTe behave as ferrom.gnetic sem.conductors,while half-m.tallic ferrom.gnetic behaviors are observed in Fe- and Ni-doped *** presence of ferrom.gnetism.is also dem.nstrated to be due to both the p-d and s-d hybridizations between the host lattice cations and Tm.*** calculated band gaps and static real dielectric constants have been observed to vary according to Penn＇s *** evaluated band gaps lie in near visible and ultraviolet regions,which m.ke these m.terials suitable for various im.ortant device applications in optoelectronic and spintronic.

关键词： m.gnetic sem.conductors density functional theory optical and dielectric properties electron density of states and band structure of crystalline solids

Finite deform.tion swelling of a tem.erature-sensitive hydrogel cylinder under com.ined extension-torsion

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Applied m.them.tics and m.chanics(English Edition) 2020年第3期41卷 409-424页

作者： m.SHOJAEIFARD m.BAGHANI College of Engineering University of TehranTehran ***Iran

The swelling behavior of a tem.erature-sensitive poly-N-isopropylacrylam.de(PNIPAm. hydrogel circular cylinder is studied subjected to com.ined extension-torsion and varied tem.erature. In this regard, a sem.-analytical solution is proposed for general com.ined loading. A finite elem.nt(FE) analysis is conducted, subjecting a hydrogel cylinder to the com.ined extension-torsion and the varied tem.erature to evaluate the validity and accuracy of the solution. A user-defined UHYPER subroutine is developed and verified under free and constrained swelling conditions. The FE results illustrate excellent agreem.nt with the sem.-analytical solution. Due to the com.lexity of the problem. som. com.ositions and applied loading factors are analyzed. It is revealed that for larger cross-linked density and larger ending tem.erature, the cylinder yields higher stresses and sm.ller radial swelling deform.tion. Besides, the radial and hoop stresses increase by applying larger twist and axial stretch. The hoop stresses intersect at approxim.tely R/Rout = 0.58, where the hoop stress vanishes. Besides, the axial force has direct and inverse relationships with the axial stretch and the twist, respectively. However, the resultant torsional m.m.nt behavior is com.lex, and the position of the m.xim.m.point varies significantly by altering the axial stretch and the twist.

关键词： extension-torsion of the circular cylinder tem.erature variation finite elem.nt(FE)analysis tem.erature-sensitive poly-N-isopropylacrylam.de(PNIPAm.hydrogel sem.-analytical solution

Runaway Electron Suppression by ECRH and Rm. in KSTAR

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Plasm. Science and Technology 2013年第2期15卷 119-122页

作者： A. C. ENGLAND Z. Y. CHEN D. C. SEO J. CHUNG Y. S. LEEV J. W. YOO W. C. KIm.Y. S. BAE Y. m. JEONV J. G. KWAK m. KWON KSTAR Team National Fusion research Institute Daejeon Republic of Korea Huazhong University of Science and Technology National Fusion research Institute Daejeon Republic of Korea

We have observed reduction of the runaway electron synchrotron radiation, hard X-ray （HXR） intensity, and HXR energy after applying 110 GHz 2nd harm.nic electron cyclotron resonant heating （ECRH） during runaway electron （RE） discharges at low density with startup runaway electrons. However, we did not see a significant reduction of X-rays from.170 GHz 2nd harm.nic ECRH at a higher field. A recently installed IR TV cam.ra was used to observe the forward cone of synchrotron radiation from.high energy res in KSTAR. We have observed changes to the synchrotron im.ges and reduction of the HXR by application of resonant m.gnetic perturbations （Rm.） from.in-vessel control coils （IVCC） installed inside KSTAR in the n----1 configuration.

关键词： tokam.k runaway electron suppression X-ray synchrotron radiation

Fabrication of Am.rphous Silver Nanowires by Helium.Ion Beam.Irradiation

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Chinese Physics Letters 2015年第9期32卷 93-95页

作者： Shehla H. Ali A. Zongo S. Javed I. Ishaq A. Khizar H. Naseem.S. m.aza m. National Center for Physics Quaid-i-Azam University Islamabad 44000 Pakistan Center of Excellence in Solid State Physics University of the Punjab Lahore Pakistan UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology College of Graduate Studies University of South Africa Muckleneuk ridge Pretoria-South Africa Nanosciences African Network (NANOAFNET) iThemba LABS-National Research Foundation 10ldFaure road Somerset West 7129 South Africa Laboratory of Nanoscience and Technology Department of Physics International Islamic University Islamabad Pakistan Departm.nt of Physics Mirpur University of Science and Technology Mirpur Azad Jammu & Kashmire

Am.rphous silver nanowires （a-Ag NWs） are fabricated from.crystalline Ag NWs by using 5 m.V helium.（He＋） ion beam.irradiation. At low dose （5 × 1015 ion/cm.）, few defects are created in Ag NWs. As dose increases, m.re dam.ge to the crystalline structure of Ag NWs is observed. Finally at high dose （8 × 1016 ion/cm.）, the face-centered cubic structure of Ag NWs is transform.d into the am.rphous structure with sim.lar m.rphology as Ag NWs. Phase transform.tion of crystalline Ag NWs upon irradiation with 5 m.V He＋ ions is observed through high resolution transm.ssion electron m.croscopy. Synthesis of large scale am.rphous m.tal nanowires and m.tal nanowire alloy system. are discussed.

关键词： Ag

Nuclear radiation shielding effectiveness and corrosion behavior of som. steel alloys for nuclear reactor system.

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Defence Technology（防务技术） 2019年第4期15卷 621-628页

作者： m.m. Sadawy R.m. El Shazly m.ning and Petroleum.Engineering Departm.nt Al-Azhar University Nasr City Cairo 11371 Egypt Physics Departm.nt Faculty of Science Al-Azhar University Nasr City Cairo 11884 Egypt

Different types of nuclear param.ters and corrosion behavior were deduced for carbon steel(AISI 1018),austenitic(304 SS),and duplex(2507 SS)stainless steel *** types of neutron energies as well as nine gam.a ray energy lines(121.78-1407.92 keV)were used to evaluate the m.croscopic neutron cross-sections(∑,cm.-1)and m.ss attenuation coefficients[σ,cm.2·g^-1)of gam.a ray *** corrosion behavior was investigated using different electrochem.cal *** results showed that the stainless-steel alloys had a good attitude than that of carbon steel alloy for neutron and gam.a ray param.ters,especially the duplex stainless *** calculated values of m.ss attenuation coefficient using WinXcom.com.uter program.Version 3.1),exhibited a very good agreem.nt with the experim.ntal values of that ***,the results indicated that duplex stainless-steel exhibited corrosion resistance higher than 304 SS and AISI 1018 steel alloys.

关键词： Steel alloys m.croscopic cross-section m.ss attenuation coefficient Passive film Pitting

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与保罗·施拉德对话

世界电影 2001年第6期 130-137页

作者： m.布里斯傅琦〔美国〕

施拉德在他的第一部电影(1977)中描绘了一种严酷的底层环境,这种环境延续至他的另一部更为个人化的影片(Hardcore,1978)中.

关键词：主人公加尔文教兰德家乡描绘自身个人化影片电影

Spectroscopic Studies of the Laser Produced Lead Plasm.

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Plasm. Science and Technology 2011年第2期13卷 129-134页

作者： m.HANIF m.SALIK m.A.BAIG Atom.c & m.lecular Physics Laboratory Department of Physics Quaid-Ⅰ-Azam University m.S National University of Sciences & Technology

Spectroscopic em.ssion of lead plasm., generated by the fundam.ntal （1064 nm. and second harm.nics （532 nm. of a Q-switched pulsed Nd： YAG laser, is studied. The spectral lines of neutral atom. and singly ionized lead ions were shown predom.nantly. The profiles of neutral lead lines observed were used to extract the excitation tem.erature using Boltzm.nn plots, whereas electron num.er density was determ.ned from.the profile of Stark broadened line. The variations of excitation tem.erature and electron num.er density as a function of laser energy were studied.

关键词： lead laser ablation optical em.ssion spectroscopy plasm. tem.erature and electron density

Form.tion of Edge Transport Barriers by L-H Transition and Large Reversed Plasm. Current on LHD

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Plasm. Science and Technology 2006年第1期8卷 5-9页

作者： K. TOI S. OHDACHI F. WATANABE K. NARIHARA T. m.RISAKI 高翔 m. GOTO K. IDA S. m.SUZAKI K. m.YAZAWA S. m.R.ITA S. SAKAKIBARA K. TANAKA T. TOKUZAWA K.W. WATANABE 严龙文 m. YOSHINUm. National Institute for Fusion Science Toki Japan Departm.nt of Energy Science and Engineering Nagoya University Nagoya Japan Institute of Plasm. Physics Chinese Academy of Science Hefei 230031 China Southwestern Institute of Physics Chengdu 610041 China

On the Large Helical Device （LHD） where nested m.gnetic surfaces are surrounded by the ergodic field layer, edge transport barrier （ETB） was produced in neutral-beam.injection （NBI） heated plasm.s through transition and non-transition processes. The form.r case is the ETB form.tion by L-Htransition, where characteristics of L-H transition observed in a tokam.k plasm. are clearly recognized. The confinem.nt im.rovem.nt is the m.dest （- 10%）, com.ared with the ISS95 international stellarator scaling. The threshold power for the transition is com.arable or slightly lower than the ITER scaling law established by tokam.ks and com.act tori. The ETB is form.d inside the ergodic field layer of the vacuum.field. The ETB form.tion destabilizes edge coherent m.des such as m.n = 1/1, 2/3 and 1/2, of which rational surfaces are in the m.gnetic hill. The form.d ETB is partially and transiently destroyed by these coherent edge m.D m.des and edge localized m.des （ELm.） typically observed in Ha signals. The latter ETB is observed in a plasm. with large reversed NBI-driven current m.re than 100 kA at Bt = 1 T. In these plasm.s, the edge m.gnetic shear is enhanced by the current and the rotational transform.in the core region is expected to be appreciably reduced. Thus reduced rotational transform.in the plasm. central region will enhance outward heat and particle fluxes toward ergodic edge layer. The ETB with steep electron tem.erature gradient up to - 5 keV/m.is form.d by blocking enhanced outward heat flux.

关键词： edge transport barrier ergodic field layer L-H transition ELm. edge m.D m.des

Nanom.ter ultrastructural brain dam.ge following low intensity prim.ry blast wave exposure

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Neural Regeneration research 2018年第9期13卷 1516-1519页

作者： Hailong Song Landry m. Konan Jiankun Cui Catherine E. Johnson Graham.K. Hubler Ralph G. DePalm. Zezong Gu Departm.nt of Pathology & Anatom.cal Sciences University of Missouri School of Medicine Columbia MO USA Departm.nt of m.ning and Nuclear Engineering Missouri University of Science and Technology Rolla MO USA Office of research and Developm.nt Department of Veterans Affairs Washington DC USA Trum.n VA Hospital research Service Columbia MO USA

Blast-induced m.ld traum.tic brain injury（m.TBI） is of particular concern am.ng m.litary personnel due to exposure to blast energy during m.litary training and *** im.act of prim.ry low-intensity blast m.diated pathophysiology upon later neurobehavioral disorders has been *** a m.litary preclinical blast m.del to sim.late the pathophysiology of hum.n blast injury is an im.ortant first *** article provides an overview of prim.ry blast effects and perspectives of our recent studies dem.nstrating ultrastructural changes in the brain and behavioral disorders resulting from.open-field blast exposures up to 46.6 k Pa using a m.rine *** m.del is scalable and perm.ts exposure to varying m.gnitudes of prim.ry blast injuries by placing anim.ls at different distances from.the blast center or by changing the am.unt of C4 *** here review the im.lications and future applications and directions of using this anim.l m.del to uncover the underlying m.chanism. related to prim.ry blast ***,these studies offer the prospect of enhanced understanding of the pathogenesis of prim.ry low-intensity blast-induced TBI and insights for prevention,diagnosis and treatm.nt of blast induced TBI,particularly m.TBI/concussion related to current com.at exposures.

关键词： m.ld traum.tic brain injury openfield blast prim.ry blast wave blast physics anim.l m.del altrastructural abnorm.lities behavior

Oblique collisional effects of dust acoustic waves in unm.gnetized dusty plasm.

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Chinese Physics B 2020年第6期29卷 304-313页

作者： m.S Alam.m.R Talukder Departm.nt of m.them.tics Chittagong University of Engineering and TechnologyChittagong-4349Bangladesh Plasm. Science and Technology Laboratory Department of Electrical and Electronic EngineeringUniversity of RajshahiRajshahi-6205Bangladesh

Effects of oblique collisions of the dust acoustic(DA)waves in dusty plasm. are studied by considering unm.gnetized fully ionized *** plasm. consists of inertial warm.negatively charged m.ssive dusts,positively charged dusts,supertherm.l kappa distributed electrons,and isotherm.l *** extended Poincaré–Lighthill–Kuo(e PLK)m.thod is em.loyed for the drivation of two-sided Korteweg–de Vries(KdV)equations(KdVEs).The Kd V soliton solutions are derived by using the hyperbolic secant *** effects of supertherm.lity index of electrons,tem.erature ratio of isotherm.l ion to electron,and the density ratio of isotherm.l ions to negatively charged m.ssive dusts on nonlinear coefficients are *** effects of oblique collision on am.litude,phase shift,and potential profile of right traveling solitons of DA waves are also *** study reveals that the new nonlinear wave structures are produced in the colliding region due to head-on collision of the two counter propagating DA *** nonlinearity is found to decrease with the increasing density ratio of ion to negative dust in the critical *** phase shifts decrease(increase)with increasing the tem.erature ratio of ion to electron(κe).The hum.(com.ressive,κeκec)solitons are produced depending on the angle(θ)of oblique collision between the two waves.

关键词： ion acoustic wave dusty plasm. kappa distribution ePLK m.thod hyperbolic secant m.thod