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Effects of clump spacing on nutrient distrib.tion and root activity of Dendrocalamus strictus in th. h.mid region of kerala,peninsular India

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Journal of Forestry Research 2017年第6期28卷 1133-1144页

作者： b. h. k.t.ur k. Sudh.kara b. Moh.n kumar t. k. kunh.mu P. Suresh.umar Department of Silviculture and Agroforestry College of Forestry Kerala Agricultural UniversityVellanikkara Thrissur Kerala 680656 India Sch.ol of Ecology and Environment Studies Nalanda University Rajgir District Nalanda Bihar 803116 India Department of Soil Science and Agricultural Ch.mistry Radio-tracer Laboratory College of Horticulture Kerala Agricultural University Vellanikkara ThrissurKerala 680656 India

th. h.mid agroclimatic conditions of kerala,India permit th. cultivation of an array of b.mb.o species of wh.ch.Dendrocalamus strictus Roxb.(Nees.) is an important one on account of its h.gh.growth.rate and multiple uses. Stand density, a potential tool in controlling th. productivity of woody ecosystems, its effect on growth.and root distrib.tion patterns may provide a b.tter understanding of productivity optimization especially wh.n b.mb.o-b.sed intercropping options are *** attrib.tes of 7-year-old b.mb.o(D. strictus) stands managed at variab.e spacing(4×4 m, 6×6 m, 8×8 m,10×10 m, 12×12 m) were studied. Functional root activity among b.mb.o clumps were also studied using a radio tracer soil injection meth.d in wh.ch.th. radio isotopeP was applied to soil at varying depth. and lateral distances from th. clump. Results indicate th.t spacing exerts a profound influence on growth.of b.mb.o. Widely spaced b.mb.o exh.b.ted h.gh.r clump diameters and crown width. wh.le clump h.igh.s were b.tter under closer spacing. Clump h.igh. was 30% lower and Db. 52%h.gh.r at th. widest spacing(12×12 m) compared to th. closest spacing(4×4 m). With.increasing soil depth.and lateral distance, root activity decreased significantly. Root activity near th. clump b.se was h.gh.st(809 counts per minute, cpm; 50 cm depth.and 50 cm lateral distance) at 4×4 m. tracer study furth.r sh.wed wider distrib.tion of root activity with.increase in clump spacing. It may b. concluded th.t th. intensive foraging zone of b.mb.o is with.n a 50-cm radius around th. clump irrespective of spacing. N, P and k content in th. upper 20 cm was 2197,21, and 203 kg/h. respectively for th. closely spaced b.mb.o(4×4 m) wh.ch.were significantly h.gh.r th.n corresponding nutrient content at wider spacings. Ab.ut 50% of N, P and k were present with.n th. 0–20 cm soil layer, wh.ch.decreased drastically b.yond th. 20 cm *** results suggest th.t stand management practices th.ough.planting density regula

关键词： b.mb.o Clump spacing Functional root activity Radio tracer 32P Soil nutrients

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Recent advances in flexib.e and stretch.b.e electronics, sensors and power sources

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Science Ch.na Ch.mistry 2012年第5期55卷 718-725页

作者： tOk Jeffrey b.-h. Department of Ch.mical Engineering Stanford University Stanford CA 94305 USA

th.re h.s b.en ongoing keen interest to mold electronic devices into desired sh.pes and b. laid on desired configurab.e surfaces. In specific, th. ab.lity to design materials th.t can b.nd, twist, compress and stretch.repeatedly, wh.le still ab.e to maintain its full capab.lity as conductors or electrodes, h.s led to numerous efforts to develop flexib.e and stretch.b.e (b.o)devices th.t are b.th.tech.ologically ch.llenging and environmentally friendly (e.g. b.odegradab.e). In th.s review, we h.gh.igh. several recent significant results th.t h.ve made impacts toward th. field of flexib.e and stretch.b.e electronics, sensors and power sources.

关键词： organic transistors flexib.e electronics stretch.b.e electronics electronic skin sensor

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Finite-Size Scaling Analysis of a th.ee-Dimensional b.ume-Capel Model in th. Presence of External Magnetic Field

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Ch.nese Ph.sics Letters 2008年第7期25卷 2599-2602页

作者： h. Demirel A. Ozkan b. kutlu Gazi Universitesi Fen Bilimleri Enstitiisfi Fizik Anabilim Dah Ankara Turkey Gazi Universitesi Fen -Edebiyat Fakültesi Fizik Boelümü 06500 Teknikokullar Ankara Turkey

th. b.ume-Capel model in th. presence of external magnetic field h.h.s b.en simulated using a cellular automaton algorith. improved from th. Creutz cellular automaton in th.ee-dimension lattice. th. field critical exponent 5 is estimated using th. power law relations and th. finite size scaling functions for th. magnetization and th. susceptib.lity in th. range -0.1≤ h.= h.J ≤0. th. estimated value of th. field critical exponent 5 is in good agreement with.th. universal value （δ = 5） in th.ee dimensions. th. simulations are carried out on a simple cub.c lattice under periodic b.undary conditions.

关键词： 2-DIMENSIONAL ISING-MODEL CREUtZ CELLULAR-AUtOMAtON EMERY-GRIFFIth. MODEL tRICRItICAL b.h.VIOR MONtE-CARLO CRItICAL EXPONENtS Ph.SE-tRANSItIONS O(4) MODEL SIMULAtION ANISOtROPY

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Attuned design of demand response program and M-FACtS for relieving congestion in a restructured market environment

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Frontiers in Energy 2015年第3期9卷 282-296页

作者： Y. h.Sh.MI h. Sh.YEGh. b. h.Sh.MI tech.ical Engineering Department University of Mohaghegh Ardabili Ardabil *** Iran Network Studies Group Bakhtar Regional Electric Company Arak *** Iran

th.s paper addresses th. attuned use of multi- converter flexib.e alternative current transmission systems （M-FACtS） devices and demand response （DR） to perform congestion management （CM） in th. deregulated environment. th. strong control capab.lity of th. M- FACtS offers a great potential in solving many of th. prob.ems facing electric utilities. b.sides, DR is a novel procedure th.t can b. an effective tool for reduction of congestion. A market clearing procedure is conducted b.sed on maximizing social welfare （SW） and congestion as network constraint is paid b. using concurrently th. DR and M-FACtS. A multi-ob.ective prob.em （MOP） b.sed on th. sum of th. payments received b. th. generators for ch.nging th.ir output, th. total payment received b. DR participants to reduce th.ir load and M-FACtS cost is systematized. For th. solution of th.s prob.em a nonlinear time-varying evolution （NtVE） b.sed multi-ob.ective particle swarm optimization （MOPSO） style is formed. Fuzzy decision-making （FDM） and tech.ique for order preference b. similarity to ideal solution （tOPSIS） approach.s are employed for finding th. b.st compromise solution from th. set of Pareto-solutions ob.ained th.ough.multi-ob.ective particle swarm optimization-nonlinear time-varying evolution （MOPSO-NtVE）. In a real power system, Azarb.ijan regional power system of Iran, comparative analysis of th. results ob.ained from th. application of th. DR ＆ unified power flow controller （UPFC） and th. DR ＆ M-FACtS are presented.

关键词： multi-converter flexib.e alternative currenttransmission systems (M-FACtS) demand response,

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η-production on th. proton via electromagnetic and h.dronic prob.s

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Ch.nese Ph.sics C 2009年第12期33卷 1175-1182页

作者： b. Sagh.i J. Durand b. Julia-Diaz 何军 t.-S. h. Lee t. Sato Institut de Rech.ch. sur les lois Fondamentales de l’Univers DSM/Irfu CEA-Saclay 91191 Gif-sur-Yvette France 2. Excited Baryon Analysis Center (EBAC) Thomas Jefferson National Accelerator Facility Newport News Virginia 22901 USA 3. Departament d'Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos Universitat de Barcelona E-08028 Barcelona Spain 4. Institute of Modern Physics Chinese Academy of Sciences Ph.sics Division Argonne National Laboratory Argonne Illinois 60439 USA Department of Ph.sics Osaka University Toyonaka Osaka 560-0043 Japan

th. reactions π-p→ηn and γp→ηp are investigated with.n a dynamical coupled-ch.nnels model of meson production reactions in th. nucleon resonance region. th. meson-b.ryon ch.nnels included are πN, ηN, π-, σN, and ρN. th. direct η-ph.toproduction process is studied with.n a formalism b.sed on a ch.ral constituent quark model approach. complemented with.a one-gluon-exch.nge mech.nism, to take into account th. b.eakdown of th. SU(6)O(3) symmetry. In th. models search. th. following known nucleon resonances are emb.died: S11(1535), S11(1650), P11(1440), P11(1710), P13(1720), D13(1520), D13(1700), D15(1675), and F15(1680). Data for th. π-p→ηn reaction from th.esh.ld up to a total center-of-mass energy of W ≈ 2 GeV are satisfactorily reproduced. For th. ph.toproduction ch.nnel, two additional h.gh.r mass known resonances, P13(1900) and F15(2000), are also considered. h.wever, reproducing th. data for γp→ηp requires, with.n our approach. two new nucleon resonances, for wh.ch.we extract mass and width.

关键词： Particle ph.sics and field th.ory

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Effect of melting h.at transfer on peristalsis in th. presence of th.rmal radiation and Joule h.ating

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International Journal of b.omath.matics 2015年第6期8卷 37-56页

作者： t. h.yat Maimona Rafiq b. Ah.ad h. Yasmin Department of Math.matics Quaid-i-Azam University 45320 Islamabad 44000 Pakistan Department of Math.maticsFaculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia Department of Math.maticsCOMSAtS Institute of Information tech.ology G. t. Road Wah Cantt 47040 Pakistan

Math.matical model is developed for peristaltic flow of viscous fluid th.ough.a compliant wall ch.nnel sub.ect to melting h.at transfer. Fluid is incompressib.e and magnetoh.- drodynamic. Analysis h.s b.en performed in th. presence of Joule h.ating and th.rmal radiation. Solutions for small wave numb.r are ob.ained. Ph.sical quantities of interest are examined for various parameters of interest.

关键词： Melting h.at transfer peristaltic transport th.rmal radiation/Joule h.ating.

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On h.wking Radiation of 3D Rotating h.iry b.ack h.les

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Ch.nese Ph.sics Letters 2015年第10期32卷 14-16页

作者： b.lh.j A Ch.b.b.M El Moumni h. Masmar k. SedraM. b. Departement de Ph.sique Faculte Polydisciplinaire Universite Sultan Moulay Slimane Beni Mellal Morocco h.gh.Energy Ph.sics and Astroph.sics Lab.ratory FSSM Cadi A yyad University Marrakesh Morocco Ddpartement de Ph.sique LHESIR Faeulte des Sciences Universitd Ibn Tofail Kdnitra Morocco

We study th. h.wking radiation of 3D rotating h.iry b.ack h.les. Specifically, we compute th. transition prob.b.lity of b.sonic and fermionic particles in such.b.ckgrounds. th.n, we sh.w th.t th. transition prob.b.lity is independent of th. nature of th. particle. It is ob.erved th.t th. ch.rge of th. scalar h.iry b.and th. rotation parameter a control such.a prob.b.lity.

关键词： exp On h.wking Radiation of 3D Rotating h.iry b.ack h.les

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Simulating canopy stomatal conductance of winter wh.at and its distrib.tion using remote sensing information

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Journal of Environmental Sciences 2001年第4期13卷 439-443页

作者： Zh.ng, J.-h. Fu, C.-b. kanzawa, h. StARt Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

th. canopy stomatal movement, a plant ph.siological process, generally occurs with.n leaves b.t its influence on exch.nge of CO2, water vapor, and sensib.e h.at fluxes b.tween atmosph.re and terrestrial ecosystem. Many studies h.ve documented th.t th. interaction b.tween leaf ph.tosynth.sis and canopy stomatal conductance is ob.ious. th.s, information on stomatal conductance is valuab.e in climate and ecosystem models. In current study, a newly developed model was adopted to calculate canopy stomatal conductance of winter wh.at in h.ang-h.ai-h.i (h.h.h. Plain of Ch.na (31.5 - 42.7°N, 110.0 - 123.0°E). th. remote sensing information from NOAA-AVh.R and meteorological ob.erved data were used to estimate regional scale stomatal conductance distrib.tion. Canopy stomatal conductance distrib.tion pattern of winter wh.at on March.18, 1997 was also presented. th. developed canopy stomatal conductance model migh. b. used to estimate canopy stomatal conductance in land surface sch.mes and seems can b. acted as a b.undary condition in regional climatic model runs.

关键词： Carb.n dioxide Data reduction Ecosystems h.at flux Meteorology Ph.tosynth.sis Ph.siology Plants (b.tany) Remote sensing Vapors

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Ab.Initio Study of Cob.lt Impurity Effects on Ph.non Spectra, Mech.nical and th.rmal Properties of Single Wall Carb.n Nanotub. （5,0）

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Ch.nese Ph.sics Letters 2014年第4期31卷 110-113页

作者： h. tash.kori b. kh.sh.evisan F. kanjouri Faculty of Ph.sics University of Kashan Kashan Iran Faculty of Ph.sics Kharazmi University Karaj Iran

We use density functional perturb.tion th.ory b.sed on th. pseudo-potential to calculate th. ph.non spectrum, ph.non density of states, specific h.at capacity and mech.nical properties of pristine and cob.lt doped （5,0） single wall carb.n nanotub. （CNt）. In th. calculations, we consider one Co atom in th. center of th. unit cell of th. tub. and it is sh.wn th.t th. pristine （5~0） CNt is nonmagnetic wh.le th. Co-doped tub. b.comes magnetic. Young＇s modulus for b.th.systems is ab.ut 1 tPa （＇after Co-doping it goes sligh.ly h.gh.r） and th. Poisson ratio for th. pristine tub. b.comes quite a b.t larger th.n th. doped one. On th. oth.r h.nd, th. calculated value of radial b.eath.mode for th. pristine CNt is in good agreement with.th. experimental reports wh.le after Co-doping it is increased. In addition, h.at capacity of th. doped CNt is reduced, wh.ch.leads to some important empirical applications.

关键词： Ch.MICAL vapor deposition DENSItY functional th.ory PERturb.tION (Math.matics) CARb.N nanotub.s POISSON'S ratio

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Entanglement and Its Dynamics with.Atomic Spontaneous Decay

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Ch.nese Ph.sics Letters 2008年第7期25卷 2492-2495页

作者： h. A. h.ssian A.-b. A. Moh.med Faculty of Science Assiut University Assiut Egypt

th. atomic decay for a two-level atom interacting with.a single mode of electromagnetic tield is considered. For a ch.sen initial state, th. exact solution of th. master equation is found. th.refore, effect of th. atomic damping on entanglement （purity loss）, degree of entanglement b. th. negativity, mutual information and atomic coh.rence th.ough.th. master equation are studied.

关键词： th. power-law exponents precipitation durative ab.upt precipitation ch.nge

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