developments in ducted water current turbines

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  • 8/6/2019 Developments in ducted water current turbines

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    zmjni pnplr >1%08%04 >

    Jlqlifpelozt mo j|dzlj {nzlr d|rrloz z|rbmolt

    Brmno Cmrcl

    Tdhffi fa Lokmollrmok) Krmaamzh \omqlrtmz}) PEB / Mozrfj|dzmfo7 tznzmd hlnj noj d|rrloz aif{ zmjni pf{lr

    Zhlrl nrl bntmdnii} z{f elzhfjt fa lxzrndzmok lolrk} arfe zmjni aif{t/ Zhl dfoqlozmfoni

    elzhfj mt zf pindl n bnrrnkl ndrftt no ltz|nr} {mzh n inrkl zmjni rnokl zf drlnzl n tznzmd hlnj

    fr prltt|rl jmaalrlodl) noj fplrnzl n if{ hlnj h}jrf%lildzrmd pf{lr pinoz {mzh mozlremzzloz)

    rlqlrtmok aif{/ Zhl bltz cof{o lxnepil fa zhmt npprfndh) {hmdh hnt bllo zrlnzlj mo jlznmi mo

    Bnclr S>U) mt zhl 2:0 E[ motzniinzmfo mo zhl Rnodl Rmqlr Ltz|nr} mo Arnodl) dfepilzlj mo

    >=11/ No mozlrltzmok qnrmnoz hnt bllo prfpftlj afr Jlrb} mo [ltzlro N|tzrnimn) {hlrl z{f

    njgndloz zmjni bntmot lxmtz S2U/ Zhl prfpftni mt zf niif{ aif{ arfe zhl fdlno mozf fol ltz|nr}

    nz hmkh zmjl noj f|z fa zhl fzhlr nz if{ zmjl) zhlrlb} drlnzmok n plrenoloz jmaalrlodl mo ilqli

    blz{llo zhl z{f bntmot/ N tzlnj} fol%{n} aif{ df|ij zhlo bl enmoznmolj zhrf|kh z|rbmolt mo

    dfoj|mzt dfooldzmok zhl ltz|nrmlt/ Efrl laamdmloz z|rbmolt dno bl |tlj afr fol%{n} aif{) noj

    n tzlnj} aif{ fqlrdfelt fol fa zhl engfr jrn{bndct fa eftz nebmloz lolrk} tf|rdlt) m/l/mozlremzzloz nqnminbmimz}/ P|eplj tzfrnkl nitf bldfelt n pfttmbmimz}) {hlrlb} {nzlr mt

    p|eplj bndc mozf zhl hmkhlr bntmo nz faa%plnc plrmfjt afr |tl j|rmok plnc plrmfjt/ Hf{lqlr

    zhmt tdhlel) imcl fzhlr prfpftnit afr inrkl tdhlelt bntlj fo tznzmd hlnj) t|aalrt arfe zhl

    jrn{bndct fa lxplotmql dmqmi {frct) jmtr|pzmfo zf thmppmok noj loqmrfoelozni dfodlrot/

    Zhl iltt {lii%cof{o elzhfj fa lxzrndzmok lolrk} arfe zmjni noj fzhlr aif{t mt zf dfoqlrz zhl

    cmolzmd lolrk} fa efqmok {nzlr jmrldzi} zf eldhnomdni thnaz pf{lr {mzhf|z fzhlr{mtl

    mozlrr|pzmok zhl onz|rni aif{) mo n enoolr nonifkf|t zf n {moj z|rbmol/ Zhmt dfodlpz mt ofz

    lozmrli} ol{) hnqmok bllo moqltzmknzlj b} Rlnjmok \omqlrtmz} mo zhl \C mo >=;= S4U) b}

    Jnqmt mo Dnonjn S:U noj b} Hmizfo mo N|tzrnimn nz nbf|z zhl tnel zmel S=80t zf lxzrndz lolrk} arfe rmqlr d|rrlozt S4U/

    NPPLOJMX 4/>

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    zmjni pnplr >1%08%04 2

    B|z zhl mjln fa |tmok d|rrloz aif{ fo n inrkl tdnil mt ol{/ Lqlo nt rldlozi} nt >==> n

    dfepilzl bffc fo zmjni pf{lr enjl of elozmfo fa zhl dfodlpz S>U/ Mz mt foi} of{ zhnz zhmt

    dfodlpz mt blmok lxpifrlj afr inrklr tdnil |tl S:) 1) ;) 8) =) >0) >>U/

    Jmrldz dfoqlrtmfo fa cmolzmd lolrk} b} n z|rbmol mo fplo aif{ hnrolttlt iltt fa zhl zfzni

    nqnminbil lolrk} mo n zmjni aif{ mo no ltz|nr} zhno df|ij bl lxzrndzlj b} jneemok zhl {hfilltz|nr}/ Hf{lqlr jmrldz dfoqlrtmfo hnt tlqlrni njqnoznklt7

    >/ Zhl dnpmzni dftz fa dmqmi {frct mt limemonzlj/

    2/ Jmtr|pzmfo zf ldft}tzlet noj bfnzmok mt emomemtlj/

    4/ Fdlno d|rrlozt) {moj%moj|dlj d|rrlozt noj rmqlr aif{t nt {lii nt zmjni aif{t dno bl |tlj/

    Zhlrl mt of ollj afr n inrkl zmjni rmtl noj anii afr lxnepil zhl Elttmon tzrnmz blz{llo

    Tmdmi} noj zhl Mznimno enmoinoj hnt 2/: e&t d|rrlozt {mzh olkimkmbil rmtl noj anii S>>U/

    Hlodl n {mjlr rnokl fa tmzlt dno bl lxpifmzlj) modi|jmok rmqlrt) tzrnmzt blz{llo mtinojt)

    tmzlt faa hlnjinojt noj no} fzhlr tmzlt {hlrl zhlrl mt arl~|loz fr dfotznoz tzrfok aif{/

    Zhlrl nrl nitf tfel pfzlozmni prfbilet {mzh zmjni fr enrmol d|rrloz z|rbmolt/ Zhltl modi|jl

    >/ Qlr} inrkl jf{otzrlne jrnk afrdlt) tlqlrni zmelt inrklr zhno zhftl ndzmok fo n {mojz|rbmol fa tmeminr pf{lr f|zp|z) rl~|mrmok tzrfok nodhfrnkl/

    2/ [llj krf{zh fo binjlt) {hmdh df|ij rlj|dl zhlmr laamdmlod}/

    4/ Dfrrftmfo/

    :/ Tzfre jnenkl/

    =80t hnt rlj|dlj zhl dftz fa krmj%dfooldzlj {moj lolrk} b} n andzfr fa nbf|z 2U/ Tlqlrni afret fa z|rbmol nrl blmok

    moqltzmknzlj nrf|oj zhl {frij noj ofol hnt }lz lelrklj nt n dilnr {moolr/ Tfel fa zhl

    qnrmf|t afret d|rrlozi} blmok lqni|nzlj nrl rlqml{lj blif{/

    2/> Nxmni aif{ z|rbmolt

    Enrmol D|rrloz Z|rbmolt Izj mo Brmznmo nrl pmfollrmok zhl |tl fa nxmni aif{ z|rbmolt/ Mo >==:

    zhl} jlefotzrnzlj n >0 c[ nxmni aif{ z|rbmol mo Ifdh Imoohl mo Tdfzinoj) noj zhl} nrl

    d|rrlozi} jlqlifpmok n 400 c[ z|rbmol afr zhl Tlqlro Ltz|nr} faa Jlqfo) Lokinoj S;) 8) =)>0U/ Zhmt z|rbmol mt lxpldzlj zf rltlebil fol fr z{f dfoqlozmfoni {moj z|rbmolt) ef|ozlj fo

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    zmjni pnplr >1%08%04 4

    n dnozmilqlr zf{lr amxlj zf zhl fdlno aiffr (Amk/>-/ Fzhlr tenii pfozffo%ef|ozlj nxmni aif{

    z|rbmolt hnql bllo b|miz) afr lxnepil b} Zlne{frc Zldhofifk} mo zhl Olzhlrinojt S>4U noj

    b} T{lotfo nz zhl Ofrzhlro Zlrrmzfr} \omqlrtmz} mo Jnr{mo) N|tzrnimn S>:U/

    2/2 Drftt aif{ z|rbmolt

    Z|rbmolt mo {hmdh zhl jmrldzmfo fa aif{ mt ndrftt zhl nxmt fa rfznzmfo nrl dfeefoi} rlalrrlj zf

    nt qlrzmdni nxmt z|rbmolt) tmodl zhlmr nxmt mt |t|nii} qlrzmdni/ Hf{lqlr zhl} nrl efrl

    ndd|rnzli} jltdrmblj nt drftt aif{ tmodl zhlmr jmtzmok|mthmok alnz|rl mt zhl andz zhnz zhl

    jmrldzmfo fa aif{ mt ndrftt zhl nxmt fa rfznzmfo) {hmdh en} bl hfrmwfozni/ Jnqmt dfoj|dzlj

    inbfrnzfr} zltzt fo n drftt%aif{ {nzlr z|rbmol mo >=8>%2 noj dfotzr|dzlj n prfzfz}pl {hmdh

    prfj|dlj 20 c[ lildzrmdni pf{lr noj no ltzmenzlj :< c[ thnaz pf{lr mo >=84 S:U/ Efrl

    rldlozi} n 1 e jmnelzlr qlrzmdni nxmt z|rbmol (Amk/2- hnt bllo motzniilj mo zhl Tzrnmz fa

    Elttmon) blz{llo Tmdmi} noj zhl Mznimno enmoinoj/ Mz mt lxpldzlj zf prfj|dl nbf|z >U/ Kfrifq noj df%{frclrt mo zhl \omzlj Tznzlt hnql zltzlj

    efjlit fa n drftt%aif{ z|rbmol {mzh hlimdni binjlt noj dinme zhnz mzt plrafrenodl mt t|plrmfrzf n dfoqlozmfoni Jnrrml|t drftt aif{ z|rbmol S>1U hnt prfpftlj n inrkl drftt%aif{

    z|rbmol {mzh >0 binjlt t|ppfrzlj b} rmokt zfp noj bfzzfe) jrmqmok rmok%dne h}jrn|imd p|ept

    zf jlimqlr >0 E[ mo n : e&t d|rrloz/

    Amk/>/ Fplo nxmni aif{ z|rbmol dfodlpz S;U/ Amk/2/ Mznimno drftt aif{ z|rbmol S>>U/

    4/ Fplo noj j|dzlj z|rbmolt

    Imcl dfoqlozmfoni h}jrfpf{lr z|rbmolt) motzniinzmfot t|dh nt zhl Rnodl Rmqlr mo Arnodl

    |zmimtl zhl prltt|rl jmaalrlodl drlnzlj b} n tznzmd hlnj) m/l/ zhl pfzlozmni lolrk} mohlrloz mo n

    jmaalrlodl mo {nzlr t|randl lilqnzmfo/ Mo dfozrntz) {moj z|rbmolt noj fplo {nzlr d|rrloz

    z|rbmolt t|dh nt zhftl thf{o mo Amkt/ > noj 2 |zmimtl zhl cmolzmd lolrk} fa n efqmok ai|mj

    jmrldzi}/ Blz{llo zhltl lxzrlelt) Jnrrml|t S>;U prfpftlj pindmok z|rbmolt mo j|dzt zf

    n|keloz zhl pf{lr lxzrndzlj arfe n kmqlo tmwlj z|rbmol/

    Bi|l Lolrk} Dnonjn hnt prfpftlj z{f qnrmnozt fo zhmt zhlel7 n tmokil z|rbmol dno bl pindlj

    mo n j|dz mo fplo aif{ {mzhf|z fbtzr|dzmok zhl arll aif{ fa {nzlr nrf|oj zhl motzniinzmfo) fr

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    zmjni pnplr >1%08%04 :

    nizlronzmqli} zhlmr prfpftlj zmjni alodl (Amk/4- afrdlt nii fa zhl aif{ zf pntt zhrf|kh zhl

    z|rbmolt/ Zhl} hnql prfpftlj no nebmzmf|t tdhlel zf b|mij n zmjni alodl ndrftt n tzrnmz noj

    |tl n inrkl o|eblr fa qlrzmdni nxmt z|rbmolt zf prfj|dl |p zf 2200 E[ S:) >2U/ Rldlozi}

    fzhlr frknomwnzmfot hnql nitf bllo moqltzmknzmok zhmt dfodlpz/ Pfozn noj J|zz S>8U hnql zltzlj

    qnrmf|t prfamilt afr n dhnooliimok jlqmdl fr j|dz zf modrlntl zhl nqnminbil prltt|rl jrfp noj

    aif{ qlifdmz} zhrf|kh n drftt%aif{ z|rbmol/ Zlne{frc Zldhofifk}t Zfdnrjf z|rbmol S>=U)Amk/: mt no lxnepil fa n j|dzlj nxmni aif{ z|rbmol/

    Amk/4/ Zmjni alodl dfodlpz S:U/ Amk/:/ J|dzlj nxmni aif{ z|rbmol S>=U/

    :/ Njqnoznklt fa j|dzlj z|rbmolt

    Zhlrl nrl tlqlrni prndzmdni njqnoznklt mo pindmok zhl z|rbmol mo n j|dz/

    >/ Mo nrlnt {hlrl zhlrl mt n jnoklr fa jmqlrt noj&fr aifnzmok jlbrmt blmok jrn{o mozf zhl

    z|rbmol) n krmj df|ij bl pindlj fo zhl |ptzrlne fplomok) zh|t rlj|dmok jnoklr zf imal noj

    jnoklr fa jnenkmok fr difkkmok zhl z|rbmol/

    2/ Zhl j|dz thnjlt zhl z|rbmol mztlia arfe jmrldz t|oimkhz) noj {llj krf{zh {mii zhlrlb} bl

    rlj|dlj/ Nifok {mzh aifnzmok jlbrmt) zhmt {nt fol fa zhl engfr prfbilet lxplrmlodlj b}

    T{lotfo mo hmt {frc fo zmjni z|rbmolt mo zrfpmdni {nzlrt olnr Jnr{mo (T{lotfo) >===-/

    4/ N inrkl j|dz enjl fa if{ dftz enzlrmnit dno bl jltmkolj tf zhl jf{otzrlne tmjl ndzt nt n

    jmaa|tlr noj rlj|dlt zhl jf{otzrlne prltt|rl) zhlrlb} modrlntmok zhl nqnminbil prltt|rl

    jrfp) jrn{mok mo efrl aif{ noj modrlntmok zhl pf{lr f|zp|z fa n kmqlo tmwlj z|rbmol/ P|z

    nofzhlr {n}) inrkl aif{ nrln dfoznmomok n inrkl nef|oz fa lolrk} mt dfodlozrnzlj mozf n

    teniilr nrln tf zhnz n teniilr) if{lr dftz z|rbmol dno bl |tlj afr n kmqlo pf{lr f|zp|z/

    Bldn|tl n teniilr z|rbmol mo n antzlr aif{ tpmot antzlr) zhl zfr~|l afr n kmqlo pf{lr f|zp|z

    mt iltt noj n teniilr) if{lr dftz klnrbfx dno bl |tlj/ Zhmt mt n hmkhi} tmkomamdnoz andzfr

    tmodl aif{ qlifdmzmlt noj hlodl z|rbmol tplljt nrl if{ noj qlr} inrkl zfr~|l mt rl~|mrlj zf

    prfj|dl |tla|i nef|ozt fa pf{lr/

    :/ Zhl j|dz limemonzlt zmp ifttlt fo nxmni aif{ z|rbmol binjlt) meprfqmok laamdmlod}

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    zmjni pnplr >1%08%04 %2 arfe {hmdh zhl} ltzmenzlj zhnz no n|keloznzmfo andzfr |p zf nbf|z < df|ij bl

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    zmjni pnplr >1%08%04 1

    ndhmlqlj mo n j|dzlj drftt%aif{ {nzlr z|rbmol/ Hf{lqlr zhl} hnql ofz jmtd|ttlj zhl jmaa|tlr

    dfodlpz ofr p|bimthlj no} lxplrmelozni jnzn mo zhl imzlrnz|rl/

    Rmlkilr S24U thf{lj zhnz zhl zhlfrlzmdni enxme|e pf{lr dflaamdmloz afr n jmaa|tlr%

    n|kelozlj z|rbmol bntlj fo z|rbmol nrln mt >/=1) m/l/ 4/4 zmelt hmkhlr zhno zhl Blzw imemz/ Zhmt

    mt pfttmbil bldn|tl aif{ mt jrn{o mo arfe n krlnzlr nrln |ptzrlne zhno zhnz mozlrdlpzlj b} zhltnel tmwlj z|rbmol mo fplo aif{/

    Nazlr e|dh lxplrmeloznzmfo {mzh {moj z|ooli efjlit) Kmiblrz noj Afrleno S2:U rlpfrzlj n

    pf{lr n|keloznzmfo andzfr fa :/2< afr n z|rbmol {mzh n jmaa|tlr) m/l/ mz prfj|dlj :/2< zmelt nt

    e|dh pf{lr nt zhl tnel z|rbmol mo fplo aif{/ Zhl} |tlj tifzt (Amk/1- zf jrn{ mo hmkh lolrk}

    aif{ arfe f|ztmjl zhl jmaa|tlr afr bf|ojnr} in}lr dfozrfi noj {lrl nbil zf ndhmlql zhmt rlt|iz

    {mzh n thfrz) {mjl nokil jmaa|tlr) n e|dh efrl ldfofemdni nrrnokleloz zhno zhl ifok

    jmaa|tlrt tz|jmlj b} n o|eblr fa fzhlr moqltzmknzfrt/

    Amk/1/ Thfrz) {mjl nokil jmaa|tlr {mzh tifzt afr bf|ojnr} in}lr dfozrfi S2;U/

    Zhlmr elnt|rlj n|keloznzmfo andzfr fa :/2< mt ofz modfotmtzloz {mzh Rmlkilrt zhlfrlzmdni

    amojmok bldn|tl zhl z|rbmol zhl} |tlj hnj |oz{mtzlj binjlt fa if{ ntpldz rnzmf noj mztplrafrenodl mo fplo aif{ {f|ij hnql bllo {lii blif{ zhl Blzw imemz/

    Mz hnt bllo tzrfoki} nrk|lj b} Jrolr S2

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    zmjni pnplr >1%08%04 ;

    Mo dfozrntz zf {moj z|rbmolt) zhl enxme|e ifnjt fo n enrmol d|rrloz z|rbmol dno bl

    ndd|rnzli} prljmdzlj noj nrl mo zhl tnel frjlr nt ofreni fplrnzmok ifnjt/ A|rzhlr) n enrmol

    d|rrloz z|rbmol j|dz dno bl enjl ol|zrnii} b|f}noz tf zhnz mzt {lmkhz ollj ofz bl t|ppfrzlj

    b} n zf{lr/ Mz dno bl |tlj zf t|ppfrz zhl z|rbmol noj dno bl effrlj tf zhnz mz frmlozt mztlia

    mozf zhl d|rrloz imcl n bfnz nz nodhfr/ Mz dno zhlrlafrl bl nrk|lj zhnz Jrolrt drmzmdmtet nrlofz nppimdnbil zf enrmol d|rrloz z|rbmolt/

    1/ Lxplrmelozni {frc

    Lxplrmelozni {frc mt blmok |ojlrznclo mo dfog|odzmfo {mzh Zmjni Lolrk} Pz} Izj fa Pnie

    Blndh) ^|llotinoj) mo tlqlrni tznklt7

    (m- efjli plrafrenodl zltzmok mo n ai|el

    (mm- aif{ qmt|nimtnzmfo fo n aif{ znbil

    (mmm- efjli plrafrenodl zltzmok mo n zf{ znoc

    (mq- prfzfz}pl zltzmok |ojlr n efzfr%jrmqlo pfozffo mo tzmii {nzlr(q- prfzfz}pl zltzmok |ojlr n effrlj pfozffo mo n d|rrloz/

    Mo >=== n 0/2 x 0/: e drftt aif{ z|rbmol {nt zltzlj mo z{f j|dzt fa pnrnbfimd prfamil mo n

    ai|el nz zhl ^|llotinoj Kfqlroeloz H}jrn|imdt Inbfrnzfrmlt nz Jlnkfo mo Brmtbnol/

    Bldn|tl qlr} tenii Jnrrml|t z|rbmolt jf ofz klolrnii} tlia%tznrz 21) n Tnqfom|t rfzfr {nt

    |tlj/ Zhl nme {nt zf nttltt zhl n|keloznzmfo andzfr rnzhlr zhno zf jlefotzrnzl enxme|e

    fqlrnii laamdmlod}) noj zhl dhnrndzlrmtzmdt fa Tnqfom|t rfzfrt nrl {lii cof{o/ Nizhf|kh zhltl

    zltzt mojmdnzlj tfel n|keloznzmfo mz {nt jmaamd|iz zf ~|nozma} zhl laaldz nt zhl z|rbmol {nt ofz

    zltzlj {mzhf|z n j|dz noj blnrmok armdzmfo {nt tmkomamdnoz/

    Aif{ znbil zltzt {lrl t|btl~|lozi} dfoj|dzlj fo qnrmf|t z{f%jmelotmfoni j|dz prfamilt zf

    qmt|nimtl ~|nimznzmqli} zhl laaldz fa zhl prfamil fo zhl aif{ pnzzlro/ Mo pnrzmd|inr {l {lrl

    mozlrltzlj mo zhl pfttmbmimz} fa lohnodmok zhl bf|ojnr} in}lr dfozrfi laaldz jlefotzrnzlj b}

    Afrleno noj Kmiblrz S2;U) b} |tmok ainpt fr tinzt fa nlrfafmi prfamil/ Zhltl zltzt thf{lj

    dilnri} hf{ zhl j|dz jrn{t mo zhl |ptzrlne aif{ (Amk/;-/

    Amk/;/ Aif{ znbil j}l zrndlt thf{mok aif{ jrn{o mo |ptzrlne (fo ilaz-/

    Hf{lqlr zhl Rl}ofijt o|eblrt {lrl if{ noj aif{ {nt inemonr/ Mz mt {lii%cof{o zhnz

    nlrfafmit plrafre pffri} mo inemonr aif{) noj zhl jmaa|tlr laaldz fa zhl jf{otzrlne pnrz fa zhl

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    zmjni pnplr >1%08%04 8

    j|dz mt tmeminr zf zhl ndzmfo fa n {mok tldzmfo mo zhnz mz e|tz jlaildz zhl aif{/ Dfotl~|lozi}

    zhltl zltzt jmj ofz dfodi|tmqli} jlefotzrnzl jmaa|tlr ndzmfo/ Mo andz z{f jmaa|tlr prfamilt

    bntlj fo zhftl thf{o mo Afrleno noj Kmiblrzt pnzloz tpldmamdnzmfo dfepilzli} anmilj zf

    jlefotzrnzl jmaa|tlr ndzmfo/

    Zf{ zltzt {lrl zhlo dfoj|dzlj fo n 280 ee jmnelzlr nxmni aif{ z|rbmol zf dfepnrl zhlpf{lr noj laamdmlod} fa zhl bnrl z|rbmol {mzh zhnz fa zhl z|rbmol mo qnrmf|t z}plt fa j|dz/

    Tmodl zhl nme {nt zf dfepnrl zhl plrafrenodl fa zhl bnrl z|rbmol {mzh zhnz fa zhl tnel

    z|rbmol mo n j|dz) zhl lxndz jmelotmfot fa zhl z|rbmol {lrl ofz mepfrznoz/ Zhl mepliilr fa n

    jltc ano {nt |tlj nt n z|rbmol/ N tinzzlj j|dz fa rldznok|inr tldzmfo {nt |tlj nt mz mt lntmlr zf

    dfotzr|dz zhno fol fa dmrd|inr tldzmfo) noj n zrnotmzmfo j|dz {nt |tlj blz{llo zhl dmrd|inr

    thrf|j nrf|oj zhl z|rbmol noj zhl rldznok|inr jmaa|tlr pfrzmfo/ Rlt|izt pifzzlj mo Amk/8 thf{

    npprfxmenzli} ;0, modrlntl mo f|zp|z {mzh n tifzzlj jmaa|tlr/

    dfepnrmtfo fa fplo noj j|dzlj z|rbmol laamdmlod}

    0

    >0

    20

    40

    :0

    >0 >20 >40

    RPE

    laamdmlod})

    ,

    j|dzlj

    fplo

    Amk/ 8/ Plrafrenodl fa efjli nxmni aif{ z|rbmol {mzh noj {mzhf|z jmaa|tlr/

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