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  • 7/23/2019 Fundamentals of Engineering Workshop Practice - Materials & Processes [2011, E-Version]; Edited by O. E. Okorafor

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    CPBMLE@B]LG_ HC

    @BAIB@@TIBAQHTN_FHZ ZTLO]IO@

    EL]@TILG_ # ZTHO@__@_

    @MI]@M DY

    H" @NZ@ HNHTLCHT' Zf"M"

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    ii

    E O OHEZP]@T ZT@__

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    iii

    ZT@CLO@

    ]fis is l dlsio Qhtnsfhz Ztlo}io` }`v} cht pbm`tatlmpl}` s}pm`b}s hc@baib``tiba' _oi`bo` lbm ]`ofbhghay" I} oh`ts }f` `ss`b}ilg lsz`o}s hc }f`

    syggldps`s(opttiopgl hc @baib``tiba Qhtnsfhz Ztlo}io` I' II lbm III ls

    optt`b}gy tpb l} }f` C`m`tlg Pbi`tsi}y hc ]`ofbhghay' Hq`tti &CP]H)"

    L }`v} hc }fis bl}pt` fls d``b ghba h`tmp` lbm i} is fhz`m }fl} i}s

    zpdgiol}ihb qigg cigg }f` y`ltbiba alz cht y`lts I lbm II s}pm`b}s hc

    @baib``tiba lbm ]`ofbhghay lothss }f` ohpb}ty" ]f` ohb}tidp}iba lp}fhts lt`

    lgg mtlqb cthe }f` M`zlt}e`b} hc El}`tilgs lbm E`}lggptaiolg @baib``tiba hc

    }f` C`m`tlg Pbi`tsi}y hc ]`ofbhghay' Hq`tti" ]f` qhtn is }f` hp}ohe` hc}`lofiba lbm ohhtmibl}iba }f` Qhtnsfhz Ztlo}io` Ohpts`s ib CP]H cht }f`

    zls} }q`b}y}ft`` y`lts"

    L ls} lehpb} hc ibchtel}ihb is bhq lligldg` hb ``ty ielaibldg`

    spdk`o}' bh} kps} ib ztib}' dp} lgsh hb }f` ib}`tb`}" Fhq``t' bhb` hc }f`s olb

    d` `cc`o}i`gy p}igi{`m dy }f` l`tla` s}pm`b} pbg`ss }f`t` is zthz`t apimlbo`

    lbm pbm`ts}lbmiba hc }f` cpbmle`b}lg ohbo`z}s qi}f t`altms }h }f` ztlo}io`s'

    ztho`ss`s lbm el}`tilgs dy }f` g`o}pt`t" ]fis }`v} is hb` qly hc zthimiba }fl}

    dlsio apimlbo` ib }f` ls} spdk`o} hcelbpclo}ptiba ztho`ss`s"

    ]f` lp}fhts lt` fiafgy ibm`z}`m }h elby ohgg`lap`s lbm lp}fhts qfh

    q`t` ohbspg}`m ib }f` ohpts` hc zt`zltiba }fis }`v}"

    @bat" Zthc" H"@" Hnhtlcht

    @mi}ht

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    i

    OHB]TIDP]HT_

    @bat" Zthc" H"@" Hnhtlcht ^Oflz}`ts

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    OHB]@B]_

    Zt`clo` "iii

    Ohb}tidp}hts i

    Oflz}`t Hb`; Ibmps}tilg _lc`}y

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    i

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    ii

    ?"4"? Miim`ts lbm }tlee`gs"" 1=

    ?"4"= F`telzfthmi}` Olgiz`ts 10

    ?"4"0 Ohedibl}ihb s`} 13

    ?"4"3 Dhv _|plt` 13

    ?"4"1 ]ty _|plt` 11

    ?"4"6 Qhtnsfhz Zth}tlo}ht 11

    ?"? Eltnibahp} @|pize`b} cht Zthimiba _pzzht}"" 16

    ?"?"< _ptclo` Zgl}`s(]ldg`s 16

    ?"?"4 Lbag` zgl}`s" 19

    ?"?"? Zltlgg`gs 19

    ?"?"= Oglezs" 6:

    ?"?"0 Klons lbm Q`ma`s 6:

    ?"?"3 Eltniba My` 6 zfysiolggy'

    e`b}lggy lbm ciblboilggy"

    Hdk`o}i`s(Lmlb}la`s hc _lc`}y

    i" ]h zth}`o} z`hzg`

    ii" ]h zth}`o} zthz`t}y(elofib`ty

    iii" Cht ohb}ibpi}y hc hz`tl}ihbs ^t`mpo}ihb hc mhqb}ie`sU

    i" ]h t`mpo` ohs}s mp` }h t`zlit hc mlela`m `|pize`b} ht e`miolg

    }t`l}e`b} ai`b }h ibkpt`m z`tshbb`g(hz`tl}hts"

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    B`lteiss; Lb iboim`b} }fl} ohpgm fl` olps`m ibkpty }h z`hzg`' lss`} ht

    `bithbe`b}' pbm`t sgiaf}gy micc`t`b} oitopes}lbo`s' dp} qi}f bh ohbs`|p`bo`>

    HT' lb iboim`b} }fl} hooptt`m qi}fhp} ibkpty ht mlela` }h gic` ht zthz`t}y"

    Zt`olp}ihb; }f` lo}ihb ht s}`z }ln`b }h zt``b} lb looim`b} ht ohb}thg lfl{ltm"

    Pbslc` Lo}; Lb lo} ht lo}ihb dy lb ibmiimplg }fl} ohpgm zhssidgy olps`

    ibkpty' mlela`' iggb`ss' m`l}f `}o" `vlezg`s ibogpm` q`ltiba pbslc` ogh}fiba'

    ahiba l} lb pbslc` sz``m' psiba pbslc` `|pize`b}' `}o"

    Pbslc` Ohbmi}ihb; L ohbmi}ihb(si}pl}ihb(s}l}` }fl} ohpgm zh}`b}ilggy olps`

    ibkpty' mlela`' iggb`ss `}o" `vlezg`s ibogpm`; pbslc` ogh}fiba' m`c`o}i`

    elofib`ty' fl{ltmhps(pbslc` e`}fhms' `}o"Dhq ]i`; L ohbo`z} }fl} `vzglibs qfl} ohb}thgs lt` ib zglo` }h zt``b} }f`

    fl{ltmhps ``b} flzz`biba ht `solgl}iba"

    Dltti`ts; Ohpb}`te`lspt`s zp} ib zglo` }h zt``b} l }ft`l} ht ohedibl}ihb hc

    }ft`l}s pg}iel}`gy t`spg}iba }h }f` t`g`ls` hc l fl{ltm" Cht `vlezg`' cht

    ohtthsihb' dltti`ts ohpgm d` l ohtthsihb t`sis}lb} ohl}iba> lbm cht h`t

    zt`sspt`' }f` dltti`t ohpgm d` l zt`sspt` t`gi`c sys}`e ht lg`"

    ]ft`l}; _he`}fiba }fl} ohpgm zh}`b}ilggy olps` }f` t`g`ls` hc l fl{ltm lbmt`spg} ib lb iboim`b} `"a" zhht isidigi}y' h`tzt`sspt`' glon hc

    nbhqg`ma`(ohez }`bo`' ohtthsihb' `}o"

    Lss`}; Lby lgpldg` ht ps`cpg z`tshb ht }fiba zp} ib zglo` ib lb htalbi{l}ihb

    cht }f` sptilg lbm t`lgi{l}ihb hc }f` ohezlbys s`} ahlgs lbm hk`o}i`s" Ib

    h}f`t qhtms' lss`} is lby}fiba }fl} lgghqs }f` ohezlby }h cpbo}ihb lbm lofi``

    i}s lies" @vlezg`s ibogpm`; z`tshbb`g' olsf' glbm' `|pize`b} lbm elofib`ty'

    ahhms lbm zthmpo}s lbm hccioilg mhope`b}s"

    Cits} Lim; ]f` snigg`m lzzgiol}ihb hc loo`z}`m ztiboizg`s hc }t`l}e`b} hb }f`hooptt`bo` hc lby ibkpty ht spmm`b iggb`ss' psiba cloigi}i`s ht el}`tilgs

    lligldg` l} }f` }ie`" I} is }f` lzzth`m e`}fhm hc }t`l}iba l olsplg}y pb}ig

    zglo`m' ic b`o`sslty' ib }f` olt` hc l mho}ht ht t`eh`m }h l fhszi}lg"

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    _pi}ldg` giaf}iba"

    Zthz`t mtlibla` hc cghhts"

    Lm`|pl}` slbi}lty looheehml}ihb"

    E`miolg pbi} Zthz`t s}htla` hc }hvio(zhishbhps spds}lbo`s"

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    Zt`olp}ihbs;

    i" Ps` e`oflbiolg lims spof ls }hbas' sotlzz`ts' `}o"

    ii" Q`lt zth}`o}i` ogh}fiba' qfiof sfhpgm d` lgqlys og`lb`m lbm

    ishgl}`m cthe h}f`t ogh}fiba"iii" Dl}f lgqlys qi}f fh} ql}`t lbm ps` og`lb }hq`gs"

    i" Ps` lzzthztil}` dltti`t ot`les"

    " Fl` cits}lim }t`l}e`b} cht ``ty ibkpty' fhq``t selgg"

    m) ]hvio _pds}lbo`s; ^]f`s` zhishbhps lbm fltecpg spds}lbo`s qfiof olb d`

    shgim' gi|pim ht als`s ai`b hcc ls cpe`s(lzhpts dy cgleeldg` ibmps}tilg

    shg`b}s" ]f` oheehb ibmps}tilg shg`b}s ibogpm` zltlccib' z`}thg'

    }ptz`b}ib`' }tiofghth`}fyg`b` lbm oltdhb }`}tlofghtim`" ]f`y olb d`

    ldshtd`m ib}h }f` gpbas dy ibflgl}ihb' }fthpaf }f` snib dy zfysiolg ohb}lo}

    ht }fthpaf }f` ehp}f dy sqlgghqibaU

    Zt`olp}ihbs;

    i" ]f` zt`olp}ihbs cht of`eiolgs ls ohb}lib`m pbm`t &o) ldh` lt`

    lzzgioldg` f`t " Lmmi}ihblggy' q` fl` }f` chgghqiba;

    ii" Lhim sehniba ib spof lt`ls ls }f`t` is l tisn hc cit` lbm }f`s`

    lzhpts lt` eht` mlba`thps qf`b ibflg`m l giaf}`m oialt`}}`"

    iii" Zly l}}`b}ihb }h qltbiba bh}io`s"

    `) E`}lg Slzhpts lbm Oylbim` _lg}s; ^_he` e`}lgs ai` hcc }hvio lzhpts

    qf`b f`l}`m ht ehg}`b `"a" mptiba q`gmibaU ]f`s` e`}lgs lbm }f` `cc`o} hc

    }f`it lzhpts lt`;

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    i} ely dghq ib yhpt

    clo` ht she`hb` `gs`s lbm olps` `y` ibkpty"

    B``t og`lb lby sqltc qi}f dlt` flbms" L spi}ldg` tln` sfhpgm d`

    ps`m"

    N``z flit sfht} ht pbm`t olz sh }fl} i} mh`s bh} a`} `b}lbag`m qi}f

    th}l}iba(ehiba zlt}s hc elofib`ty"

    Lhim ghhs` ogh}fiba> q`lt l sbpaci}}iba spi} lbm `bspt` }fl} lby

    b`onglo` is }pon`m ib &mh`s bh} mlbag`)"

    Mh bh} q`lt tibas ht qtis} ql}of`s l} qhtn> }f`y ely a`} fhhn`m hb

    zthk`o}ihbs"

    Lgqlys `bspt` }fl} lgg apltms lt` ohtt`o}gy ci}}`m lbm ib zhsi}ihb }h

    zt``b} hz`tl}ht oheiba ib ohb}lo} qi}f ehiba zlt}s hc elofib`ty"

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    &i) g`ltb' &ii) zt``b} t`

    hooptt`bo`' lbm &iii) `s}ldgisf(t`ohabi{` }t`bms"

    Ibmiimplg b``ms; ]f` hz`tl}ht(`ezghy`` b``ms }f` ibchtel}ihb ib htm`t

    }h> &i) iezth` z`tchtelbo`' &ii) `s}ldgisf dlsis cht zhssidg`

    ohez`bsl}ihb"

    Zpdgio t`|pit`e`b}s; ]f` zpdgio sfhpgm d` ib }f` nbhq hc qfl} flzz`bs

    ib }f` clo}hty"

    _}ln`fhgm`ts b``ms; ]f` ib`s}hts' `ezghy``s lbm fhs} oheepbi}y

    qhpgm gin` }h nbhq qfl} flzz`bs ib }f` clo}hty(cite"

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    4:

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    4

    &iii) als`s `"a" bl}ptlg als' zthzlb`' dp}lb`' lo`}yg`b`' fymtha`b' `}o"

    O" F`l} @b`tay ib mishtm`t qfiof eh`s cthe l fiaf }`ez`tl}pt`

    t`aihb }h l ghq }`ez`tl}pt` t`aihb"M" ]`ez`tl}pt`E`lspt` hc }f` ib}`bsi}y lbm m`at`` hc f`l}"

    @" Cglsf Zhib} ]f` eibiepe }`ez`tl}pt` l} qfiof l gi|pim ai`s hp}

    lzhpt ib spccioi`b} |plb}i}y }h chte l eiv}pt` qi}f }f` lit }fl} qigg

    iabi}` ht cglsf }`ezhtltigy ic l shpto` hc iabi}ihb is ib}thmpo`m" ]f`

    cglsf zhib} hc she` z`}thg`pe zthmpo}s lt`; z`}thg' =0hO> }hgp`b`

    =:hO> n`ths`b`' mi`s`g cp`g' eh}ht hig' ?::hO"

    C" Cit` Zhib} }f` ghq`s} }`ez`tl}pt` l} qfiof }f` f`l} cthe }f`

    ohedps}ihb hc l dptbiba lzhpt is olzldg` hc zthmpoiba spccioi`b}

    lzhpt }h sps}lib ohedps}ihb"

    A" Iabi}ihb ]`ez`tl}pt` ]f` ghq`s} }`ez`tl}pt` l} qfiof }f`

    spds}lbo` qigg iabi}` szhb}lb`hpsgy"

    qfig` }f` tlzim ohedps}ihb hc ohedps}idg`

    el}`tilgs qi}f hvya`b is nbhqb ls }f` of`eis}ty hc cit`" Ib clo}' }f` of`eis}tyhc cit` ibhg`s lgg }f` chgghqiba;

    ]f` el}`tilgs }fl} lt` dptbiba>

    ]f` d`fliht hc spof el}`tilgs lbm t`lo}ihbs>

    Fl{ltms ibhg`m lbm }f` }yz` hc `v}ibapisf`t b``m`m }h zp} hp} spof

    cit`"

    I} is }f` ohbsim`tl}ihb hc }f` ldh` m`}ligs }fl} ibchte`m }f` s}l}`e`b}

    }fl} bh }qh cit`s lt` }f` sle`" ]f` cit` }tilbag` &Cia"

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    40

    Ciapt`

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    43

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    41

    Ciapt`

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    46

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    49

    ]ldg`

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    ?:

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    ? }f` ehs} zhq`tcpg olb `vo``m

    ?:'::: TZE &pbghlm`m)" ]f` op}}iba is mhb` qi}f l dptt' dhbm`m ldtlsi` ht

    ohl}`m ldtlsi`" ]f` op}}`t is psplggy f`gm ib l ohgg`} }h lgghq cht |pion

    oflba`s ib op}}`ts" ]f`y lt` oheehbgy ps`m cht `batliba' oygibm`t f`lm

    zht}iba' lbm a`b`tlg sflziba hc l zlt}"

    Cia" 4"?: Mi` atibm`ts

    http://en.wikipedia.org/wiki/Pneumatichttp://en.wikipedia.org/wiki/Pneumatic
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    1:

    \P@_]IHB_

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    1 psiba miim`ts }h eltn hp} l oitog`' &m) }tlee`gs

    ]tlee`gs lt` ps`m }h sotid` glta`t oitog`s lbm }f` sotidiba zhib}s olb

    d` lmkps}`m lghba }f` g`ba}f hc l d`le &Cia" ?"1&m))"

    ?"4"= F`telzfthmi}` Olgiz`ts

    ]f`s` lt` `|plggy nbhqb ls hmmg`as ht k`bbi`s lbm }f`y ohbsis} hc l

    olgiz`t g`a lbm l s}tliaf}zhib}`m miim`t g`a" ]f`y lt` ps`m cht sotidiba gib`s

    zltlgg`g }h }f` `ma` hc l qhtnzi`o`" ]h s`} l f`telzfthmi}` olgiz`t ohtt`o}gy' i}

    is f`gm l} 9:h }h }f` qhtn' }f` f``g lalibs} }f` `ma` hc }f` qhtn lbm i}s zhib}

    hb }f` qhtn ls sfhqb ib Cia" ?"6 I} fls lb looptloy giei} qi}fib :"0ee qf`b

    eltniba hp}"

    Cia" ?"6; Hmm g`a olgiz`ts ps`m }h sotid` l gib` zltlgg`g }h l ml}pe `ma`

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    13

    ?"4"0 Ohedibl}ihb s`}

    ]fis oheztis`s l s}thba' t`gl}i`gy }fion lbm fltm`b`m tpg` qi}f }ft``

    ibmiimplg f`lms ib ohbkpbo}ihb qi}f }f` tpg` &ls sfhqb ib Cia" ?"9)" ]f`

    }ft`` f`lms lt` s|plt` f`lm' zth}tlo}ht f`lm lbm o`b}t` f`lm"

    Cia" ?"9; Ohedibl}ihb s`}

    ]f` s|plt` f`lm olb dh}f d` ps`m ls l sziti} g``g lbm cht eltniba lbm

    of`oniba =0h

    L zth}tlo}ht f`lm lgsh sziti}g``g ci}}`m is ps`m }h eltn hp} gib`s }fl}

    lt` l} lby lbag` `vo`z} 9:h ht =0h }h }f` `ma`"

    ]f` o`b}t` f`lm ht o`b}t` fhhn is ps`m }h eltn hp} }f` o`b}t` hc l

    oitopglt qhtnzi`o` ht thpbm dlt"

    ?"4"3 Dhv _|plt`

    ]fis is ps`m }h eltn hp} gib`s zltlgg`g }h }f` lvis hc l oygibmtiolg

    ohezhb`b}" L dhv s|plt` lbm }f` qly }h ps` i} is sfhqb ib Cia" ?"

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    11

    Cia" ?"

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    16

    Cia" ?"

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    19

    Cia ?"

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    6:

    elm` ib el}ofiba zlits" L lti`}y hc si{`s sfhpgm d` elm` lligldg` sh ls }h

    `bldg` lgg }yz`s hc qhtnzi`o`s }h d` s`} pz"

    Cia" ?"

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    6 hb }f` hzzhsi}` sim` is s}lez`m }f` m`oielg

    `|pilg`b} hc }f` alpa` bped`t" ]f` Iez`tilg _}lbmltm Qit` Alpa`&lddt`il}`m _QA) is }f` ehs} oheehbgy ps`m qit` alpa`" ]ldg` ="< sfhqs

    she` alpa` si{`s &?4= hbgy lt` sfhqb) lbm }f`it ohtt`szhbmiba }fionb`ss`s

    ib }f` _QA lbm Le`tiolb _}lbmltm Qit` Alpa`" Bh}` }fl} }f` sf``} }fionb`ss

    is ib`ts`gy zthzht}ihblg }h }f` alpa` bped`t> }fl} is' }f` fiaf`t }f` alpa`

    bped`t' }f` }fibb`t is }f` e`}lg"

    Qf`b``t sf``} e`}lgs ht qit`s lt` htm`t`m' i} is b`o`sslty }h sz`oicy

    }f` m`oielg }fionb`ss hc }f` el}`tilg ib ibof`s &ht }f` eiggie`}`t `|pilg`b})'

    lbm ai` }f` ble` hc }f` alpa` lbm }f` alpa` bped`t' ic lby" ^BD; < ibof 54"0= oe 5 40"= eeU"

    ]ldg` ="

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    9 lbm elniba hp} hz`tl}ihb }tlbsc`ts }f` sflz` lbm hp}gib`s hc

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    90

    }f` zl}}`tb hb}h }f` sf``} e`}lg" ]f` }hhgs lbm }`ofbi|p`s `ezghy`m ib

    eltniba hp} lt` misopss`m ib Oflz}`t ]ft``" Q` sflgg d` ohbo`tb`m f`t` qi}f;

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    93

    Ciapt` ="=; Elniba s}tliaf} op}s qi}f s}tliaf}op}}iba ohezhpbm sbizs

    Ciapt` ="0; Op}}iba opt`s qi}f opt`m ohezhpbm sbiz

    Qi}f }f` lmlbo`s ib }`ofbhghay' sf``} e`}lg op}}iba fls }ptb`m }h

    ohezp}`ts cht zt`ois` op}}iba" Ehs} ehm`tb sf``} e`}lg op}}iba hz`tl}ihbs lt`

    bhq dls`m `i}f`t hb OBO Gls`ts op}}iba ht epg}i}hhg OBO zpbof zt`ss"

    OBO' hc}`b lddt`il}`m BO' e`lbs Ohezp}`t Bpe`tiolg Ohb}thg" I} is }f` ps`

    hc ohezp}`t shc}qlt` }h ohb}thg elofib` }hhgs" I} is lb `ss`b}ilg `g`e`b} hc

    Ohezp}`t Ib}`atl}`m Elbpclo}ptiba &OIE)' qfiof oheztis`s Ohezp}`t

    Lim`m M`siab &OLM) lbm Elbpclo}ptiba &OLE)" OBO gls`t ibhg`s ehiba

    l g`bs lss`edgy olttyiba l d`le hc gls`t giaf} h`t }f` sptclo` hc }f` e`}lg"

    Hvya`b ht bi}tha`b ht lit is c`m }fthpaf }f` sle` bh{{g` cthe qfiof }f` gls`t

    d`le `vi}s" ]f` e`}lg is f`l}`m lbm }f`b dptb} dy }f` gls`t d`le' op}}iba }f`

    e`}lg sf``}" ]f` |plgi}y hc }f` `ma` olb d` eittht sehh}f' lbm l zt`oisihb hc

    lthpbm :"

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    91

    Zpbofiba is z`tchte`m dy ehiba }f` sf``} hc e`}lg d`}q``b }f` }hz

    lbm dh}}he }hhgs hc l zpbof l s}lezgin` }hhg ps`m }h zpbof fhg`s ib}h sf``}

    e`}lg" ]f`y ohe` ib ltihps sflz`s lbm si{`s" Ciapt` ="3 sfhqs she`

    zpbofiba }hhgs lbm elofib`s" Glta` mile`}`t zpbof`s lt` fhgghq lbm op} loitog` hp} hc }f` sf``} e`}lg" ]f` }hz }hhg &zpbof) el}`s qi}f }f` dh}}he }hhg

    &mi`)' op}}iba l siezg` sflz` &`"a" l s|plt`' oitog`' ht f`vlahb) cthe }f` sf``}"

    Lb lt`l olb d` op} hp} dy elniba s``tlg fpbmt`m selgg s|plt` op}s lthpbm

    }f` z`tie`}`t" L zpbof is g`ss cg`vidg` }flb l gls`t cht op}}iba ohezhpbm

    sflz`s' dp} cls}`t cht t`z`}i}i` sflz`s &cht `vlezg`' }f` atigg` hc lb lit

    ohbmi}ihbiba pbi})" L }yziolg OBO zpbof fls l ofhio` hc pz }h 3: }hhgs ib l

    $}ptt`}$ }fl} olb d` th}l}`m }h dtiba lby }hhg }h }f` lo}i` zpbofiba zhsi}ihb" L

    ehm`tb OBO zpbof olb }ln` 3:: dghqs z`t eibp}`" L }yziolg ohezhb`b}

    &spof ls }f` sim` hc l ohezp}`t ols`) olb d` op} }h fiaf zt`oisihb cthe l dglbn

    sf``} ib g`ss }flb

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    96

    ="?"4 Bh}ofiba

    Ib htm`t }h lhim h`tglzziba hc e`}lg qf`t` ohtb`ts qigg ohe`

    }ha`}f`t qf`b }f` e`}lg is d`b} ht chgm`m' i} is b`o`sslty }h ogiz ht }tie }f`

    e`}lg }h zthim` selgg hz`bibas ib }f` s}t`}ofhp} ht zl}}`tb hc }f` qhtnzi`o`"]f` hz`bibas g`c} l} }f` ohtb`ts hc s`les lbm `ma`s lt` olgg`m bh}of`s lbm }f`

    hz`tl}ihb is nbhqb ls bh}ofiba" ]f` bh}of`t' Ciapt` ="1' is l flbmhz`tl}`m

    elofib` qfiof eln`s l 9:h op} ht bh}of ib l qhtnzi`o`" I} cloigi}l}`s }f` `lsy

    op}}iba hp} hc }f` ohtb`ts hc l qhtnzi`o` qfiof qigg d`ohe` l dhv' zlb' ht

    }tly cht `vlezg`" ]f` si{`' }yz` ht ghol}ihb hc bh}of`s is l cpbo}ihb hc }f`

    sflz` hc }f` hdk`o} }h d` cldtiol}`m" Oheehb }yz`s hc bh}of`s ps`m ib sf``}

    e`}lgqhtn lt`; s|plt` bh}of' s}tliaf} bh}of' bh}of' sglb} bh}of lbm qit`

    bh}of" Ciapt` ="6 sfhqs }f` glyiba hp} hc l s|plt` bh}of lbm l s}tliaf} bh}of>}f` mlsf`m gib`s m`siabl}` `ma`s qfiof eps} d` chgm`m ht d`b} }h chte }f`

    sflz`"

    Ciapt` ="1; ]pd` Bh}of`t

    Ciapt` ="6; Glyiba hp} bh}of`s

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    99

    ="= D`bmiba lbm Chgmiba

    D`bmiba lbm chgmiba lt` `ty oti}iolg ztho`ss`s ib sf``} e`}lgqhtn"

    Zp} siezgy' d`bmiba ib sf``} e`}lgqhtn is }f` ztho`ss dy qfiof cgl} ht

    s}tliaf} g`ba}fs lt` olps`m }h fl` opt`s ht lbag`s }f`t`dy chteiba ltihpssflz`s' `"a" oflbb`gs' mtpes' }lbns' `}o" Chgmiba is' s}tio}gy sz`lniba' d`bmiba

    }fl} }ln`s zglo` lthpbm }f` `ma`s hc sf``} e`}lg }h eln` }f` `ma`s hc }f`

    lt}iog` sehh}f lbm slc` cht flbmgiba" ]`ofbiolggy' d`bmiba is l elbpclo}ptiba

    ztho`ss dy qfiof e`}lg olb d` m`chte`m dy zgls}iolggy m`chteiba }f` el}`tilg

    lbm oflbaiba i}s sflz`" ]f` el}`tilg is s}t`ss`m d`yhbm i}s yi`gm s}t`ba}f dp}

    d`ghq i}s pg}iel}` }`bsig` s}t`ba}f" ]f`t` is gi}}g` oflba` }h }f` el}`tilgs

    sptclo` lt`l" D`bmiba a`b`tlggy t`c`ts }h m`chtel}ihb ldhp} hb` lvis hbgy"

    D`bmiba hc sf``} e`}lg olb d` z`tchte`m psiba siezg` }hhgs" I} olb d`

    mhb` h`t s}ln`s' dghons hc qhhm' zi`o`s hc lbag` ithb' lbig ht }f` `ma` hc l

    d`bof }hz> lbm qi}f }f` lim hc d`bmiba dlts' flee`ts(elgg`}s' lbm flbm

    athh`ts" _he`}ie`s d`bmiba olb d` oltti`m hp} psiba ltihps d`bmiba

    elofib`s' `"a" dlt chgm`ts &Ciapt` ="9)' thgg`ts &Ciapt` ="

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    &d) Dy elniba zpbof eltns hc }f` hp}gib`s hb }f` e`}lg }fthpaf }f` zlz`t

    szt`lm hp} hb i}' lbm }f`b ohbb`o}iba }f` zpbof eltn dy e`lbs hc l z`boig ht

    sotid`t"

    Qf`t` l zl}}`tb is }h d` ps`m elby }ie`s' i} is ahhm t`lshb }h eln` i}hc e`}lg sh }fl} i} olb gls}" _pof l e`}lg zl}}`tb is olgg`m }`ezgl}` ht els}`t

    zl}}`tb"

    ="3"4 D`bm Lgghqlbo`

    Ib mt`sselniba' }lights psplggy lmm `v}tl g`ba}fs olgg`m lgghqlbo`s }h

    }f` lo}plg e`lspt`e`b}s hc micc`t`b} zlt}s hc hpt dhmy" ]fis is b`o`sslty }h

    f`gz }f`e khib ht chgm }f` ogh}f zl}}`tb }ha`}f`t qi}fhp} t`mpoiba }f` zthzhs`m

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    lbm }fl} }f` selgg`t

    }f` ibsim` d`bm tlmips is' }f` eht` }f` s}t`}ofiba" ^_elgg d`bm tlmips lbag`}`bmiba }hqltms lop}` ht g`ss }flb 9:h iezgi`s }fl} }f` d`bmiba is sfltz'

    }iaf}' cite ht s``t`" Hb }f` h}f`t flbm' glta` d`bm tlmips &lbag` is hd}ps` ht

    eht` }flb 9:h) iezgi`s atlmplg ht ghhs` d`bmiba' Ciapt` ="?

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    "

    D`bm lgghqlbo`' ww _ibo` ] is

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    she` zthz`t}i`s

    olb d` flm l} }f` `vz`bs` hc h}f`ts" Ohbs`|p`b}gy' ohezhsi}` }hhg el}`tilgs

    fl` d``b m``ghz`m qf`t` }f` hp}`t gly`t zthim`s sptclo` zthz`t}i`s hc fiaf

    q`lt t`sis}lbo` lbm fiaf fh} s}t`ba}f lbm }f` oht` zthim`s dpgn zthz`t}i`s hc

    }hpafb`ss' q`lt lbm fiaf ohgm s}t`ba}f"

    ]f` s`g`o}ihb hc l op}}iba }hhg el}`tilg m`z`bms h l bped`t hc clo}hts

    spof ls }f` }yz` hc hz`tl}ihb }h d` oltti`m hp} &qf`}f`t thpafiba ht cibisfiba

    hp})> }f` el}`tilg hc }f` qhtnzi`o`> lbm }f` s}iccb`ss hc }f` elofib` }hhg lbm

    i}s zhq`t" Op}}iba }hhg el}`tilgs clgg pbm`t }f` chgghqiba a`b`tlg ol}`tahti`s;

    fiaf oltdhb s}``gs' fiaf sz``m s}``gs' ols} lgghys &s}`ggi}`s)' o`e`b}`m oltdim`s'

    sib}`t`m o`tleios' o`te`}s' milehbm' opdio dhthb bi}tim`' POHB' lbm

    _iLgHBs"

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    lbm olb qi}fs}lbm op}}iba }`ez`tl}pt`s ib }f` tlba` hc 9::h

    O" ]f`y lt`bh} ls }hpaf ls fiaf sz``m s}``gs lbm f`bo` lt` g`ss spi}ldg` cht ib}`ttpz}`m

    op}}iba }flb F__" _}`ggi}` }hhgs lt` elibgy t`ohee`bm`m cht m``z ohb}ibphps

    thpafiba hz`tl}ihbs l} t`gl}i`gy fiaf c``m tl}`s lbm sz``ms> ls epof ls }qio`

    }fhs` zhssidg` qi}f F__" ]f`y lt` eht` `vz`bsi` }flb F__ lbm lt` ps`m

    hbgy ib sz`oilg lzzgiol}ihbs"

    =) _ib}`t`m ht O`e`b}`m Oltdim`s;

    O`e`b}`m oltdim` }hhgs lt` elbpclo}pt`m dy zhqm`t e`}lggptay &Z(E)

    }`ofbi|p`s lbm ohbs}i}p}` hb` hc }f` ehs} iezht}lb} lmlbo`s ib op}}iba }hhg

    }`ofbhghay" D`olps` hc }f`it `vo`gg`b} zthz`t}i`s spof ls fiaf fltmb`ss h`t l

    qim` tlba` hc }`ez`tl}pt`s' `ty fiaf q`lt t`sis}lbo`' fiaf s}iccb`ss &ehmpgps

    hc `gls}ioi}y is b`ltgy }ftio` }fl} cht s}``g)' ghq }f`telg `vzlbsihb lbm t`gl}i`gy

    fiaf }f`telg ohbmpo}ii}y> }f`y lt` lehba }f` ehs} iezht}lb} }hhg el}`tilgs"

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    lbm }i}lbipe bi}tim` &]iB) ht ``b lgpeibipe

    hvim` &Lg4H?) ely d` m`zhsi}`m"

    BD; ]f` ps` hc ohl}`m }hhgs fls t`mpo`m }f` op}}iba }ie` dy l clo}ht hc eht`

    }flb

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    qf`t` E olb d` Ea.Lg' Gi.Lg' lbm Y" ]fis

    el}`tilg fls d``b chpbm }h d` ohbsim`tldgy }hpaf`t }flb o`tleios' lbm }fps

    olb d` spoo`sscpggy ps`m cht elofibiba qi}f ib}`ttpz}`m op}s" Op}}iba sz``m

    olb d` 4 }h ? }ie`s }fhs` qi}f oltdim`s" L} zt`s`b}' }fis }hhg el}`tilg is ps`m&ib }f` chte hc }izs) cht elofibiba l`thszlo` lgghys' Bidls`m als }ptdib`

    dglm`s' `}o" l} op}}iba sz``m ib }f` tlba` hc ?"? }h 0 e(s"

    3"= Op}}iba ]hhg A`he`}ty lbm Bhe`bogl}pt`

    Ib htm`t }h op} `ccioi`b}gy' lgg op}}iba }hhgs eps} zhss`ss o`t}lib lbag`s

    lbm a`he`}tiolg c`l}pt`s" ]f` dlsio a`he`}ty lbm }`teibhghai`s lsshoil}`m

    qi}f l sibag` zhib} op}}iba }hhg fls d``b sfhqb ib Ciapt` 3"

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    cht }f` sflz`t lbm zglb`t' i} is gl}`tlg hccs`}

    d`}q``b }f` }hhg lbm qhtn cht `lof s}thn` lbm cht epg}izhib} eiggiba op}}`ts'

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    3"3 ]hhg Gic` lbm Elofibldigi}y

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    B`q M`gfi; B`q La` Ib}`tbl}ihblg Zpdgisf`ts

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    }fl} is' }f` mtigg th}l}`s qfig` i} is c`m ib}h }f` s}l}ihblty QZ" Ib }f`s`

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    B`q M`gfi; B`q La` Ib}`t" Zpd"

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    cpbo}ihblg lbm `s}f`}io ps`s"

    ]f` s}t`ba}f hc qhhm lghba i}s atlibs lbm lothss }f` atlibs is micc`t`b}"

    Qhhm `vfidi}s i}s at`l}`s} s}t`ba}f ib }`bsihb zltlgg`g }h &i"`" lghba) }f` atliblbm i} is `ty pboheehb ib ztlo}io` cht l sz`oie`b }h d` zpgg`m ib }qh

    g`ba}fqis`" ]f` }`bsig` s}t`ba}f hc qhhm zltlgg`g }h }f` atlib m`z`bms pzhb

    }f` s}t`ba}f hc }f` cidt`s lbm is lcc`o}`m bh} hbgy dy }f` bl}pt` lbm mie`bsihbs

    hc }f` qhhm `g`e`b}s dp} lgsh dy }f`it lttlba`e`b}" I} is at`l}`s} ib s}tliaf}

    atlib`m sz`oie`bs qi}f }fionqlgg`m cidt`s" Othss atlib hc lby nibm el}`tilggy

    t`mpo`s }f` }`bsig` s}t`ba}f hc qhhm' sibo` }f` }`bsig` s}t`ba}f l} tiaf} lbag`s

    }h }f` atlib is hbgy l selgg ctlo}ihb hc }fl} zltlgg`g }h }f` atlib"

    Qhhm olb lgsh fl` s``tlg m`c`o}s" ]ied`t s`g`o}`m cht ps` sfhpgm d`ct`` cthe nbh}s' sfln`s &i"`" otlons) lbm cpbaps lbm sfhpgm d` ct`` cthe ibs`o}

    l}}lons"

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    ?03

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    ?01

    lmkps}`m lbm civ`m }h lby m`sit`m zhsi}ihb lghba }f` s}`e dy e`lbs hc }f`

    }fped sot`q" ]f` clo` hc }f` f`lm is zglo`m lalibs} }f` `ma` hc }f` khd lc}`t

    }f` s}`e fls d``b s`} ls t`|pit`m lbm }f` sot`q }iaf}`b`m" ]f` szpt ht

    eltniba zib hc }f` }hhg is m`zt`ss`m citegy }h eltn }f` t`|pit`m gib` hb }f` khdsptclo` ls }f` f`lm }tl`ts`s }f` khd `ma`" Ciapt`

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    376/548

    ?06

    Qhtn D`bof

    Ib a`b`tlg' ``ty oltz`b}`t b``ms l ahhm shgim d`bof ht }ldg` hc tiaim

    ohbs}tpo}ihb &psplggy elm` hc fltmqhhm) hb qfiof f` olb z`tchte ht oltty

    hp} qhhmqhtniba hz`tl}ihbs" Qhtn d`bof sfhpgm d` `|pizz`m qi}f l io` chtfhgmiba }f` qhtn lbm qi}f sgh}s lbm fhg`s cht n``ziba }f` oheehb flbm }hhgs"

    Hb` klq hc }f` io` is }iaf}`b`m }h }f` }ldg` lbm is n`z} eh`ldg` cht fhgmiba

    }f` lt}iog`s" Qhtn d`bof`s lt` dpig} shgimgy qi}f ahhm f`ly }hzs qfiof

    zthim` l ahhm qhtniba sptclo`" ]f` io` hb }f` d`bof is `|pizz`m qi}f lb

    lmkps}ldg` mha }fl} is' l zi`o` hc qhhm ht e`}lg olb d` eh`m pz lbm mhqb ib

    }f` hp}sim` klq hc }f` io`"

    D`bof Fhhn

    ]f` d`bof fhhn &Cia"

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    ?09

    Oltz`b}`t Sio`

    Oltz`b}`t io` &Cia"

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    ?3:

    Ciapt`

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    ?3 Hvchtm; Dp}}`tqht}f

    F`ib`elbb

    Oltg`y' G" Q" &4::6); ]tpon' Ib Eiothshc} _}pm`b} @bolt}l 4::6 ^MSMU'

    T`mehbm' QL; Eiothshc} Ohtzhtl}ihb"

    Mli`s' A`hcc &4::?); El}`tilgs cht Lp}hehdig` Dhmi`s> Les}`tmle;

    @gs`i`t(

    C`}f`ts}hb' Mlim &4::6); Lp}hehdig ' IbEiothshc} _}pm`b} @bolt}l4::6

    ^MSMU> T`mehbm' QL; Eiothshc} Ohtzhtl}ihb"

    Altt`}}' ]"N"' B`q}hb' N lbm Q" _}``ms &4::

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    452/548

    =?=

    Qinie`mil Chpbml}ihb' Ibo" &4: Lligldg`

    hbgib` J $f}}z;((`b"qiniz`mil"hta(qini(Fis}htyXhcX}f`Xlp}hehdig`$> Gls}

    Pzml}`m 4= M`o" 4: T`}ti``m 49}f M`o" 4:

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    453/548

    =?0

    OFLZ]@T _@S@B]@@B

    @G@O]TIOLG QHTN

    ^@bat" P" Eltn' D"@ba> E"@ba> EB_@' T"@bat &OHT@B)U

  • 7/23/2019 Fundamentals of Engineering Workshop Practice - Materials & Processes [2011, E-Version]; Edited by O. E. Okorafor

    454/548

    =?3

    Ciapt` }f`

    oitopi} ohbmpo}hts lt` ohb}lib`m qi}fib oldg`s ht `boghspt`s"

    Zlt} 0 hc }f` I@@ T`apgl}ihbs s}izpgl}`s }fl} `g`o}tiolg `|pize`b} lbm

    el}`tilgs eps} d` ofhs`b sh }fl} }f`y lt` spi}ldg` cht }f` ibs}lgg`m ohbmi}ihbs'

    }lniba ib}h loohpb} }`ez`tl}pt`' }f` zt`s`bo` hc ql}`t' ohtthsihb' e`oflbiolg

    mlela`' idtl}ihb ht `vzhspt` }h shglt tlmil}ihb" ]f`t`cht`' ZSO ibspgl}`m

    lbm sf`l}f`m oldg`s lt` spi}ldg` cht mhe`s}io ibs}lggl}ihbs dp} cht l oldg`

    t`|pitiba e`oflbiolg zth}`o}ihb lbm spi}ldg` cht dptyiba pbm`tathpbm' l

    ZSO(_QL ^ZSO ibspgl}`m s}``g qit` ltehptU oldg` qhpgm d` zt`c`tldg`"

    EI ^eib`tlg ibspgl}`mU oldg`s lt` ql}`tzthhc' f`l}zthhc lbm ohtthsihb

    t`sis}lb} qi}f she` e`oflbiolg zth}`o}ihb" ]f`s` |plgi}i`s hc}`b eln` i} }f`hbgy oldg` ofhio` cht fl{ltmhps ht fiaf}`ez`tl}pt` ibs}lggl}ihbs spof ls hig

    t`cib`ti`s' of`eiolg qhtns' dhig`t fhps`s lbm z`}thg zpez ibs}lggl}ihbs"

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    455/548

    =?1

    hp}`t sf`l}f qfiof ely ohb}lib she` e`lbs hc zthimiba zth}`o}ihb cthe

    e`oflbiolg mlela`" ]f` ohbmpo}hts hc l oldg` lt` elm` hc `i}f`t ohzz`t ht

    lgpeibipe lbm ely d` s}tlbm`m ht shgim" _hgim ohbmpo}hts lt` hbgy ps`m ib

    civ`m qitiba ibs}lggl}ihbs lbm ely d` sflz`m ib glta`t oldg`s" _}tlbm`mohbmpo}hts lt` eht` cg`vidg` lbm ohbmpo}ht si{`s cthe =": }h 40 ee4 ohb}lib

    s``b s}tlbms" L

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    456/548

    =?6

    T`apgl}ihb 040 s}l}`s }fl} }f` mthz ib hg}la` cthe }f` htiaib hc lb

    ibs}lggl}ihb }h lby zhib} ib }f` ibs}lggl}ihb eps} bh} `vo``m 4"0% hc }f` elib

    hg}la` qf`b }f` ohbmpo}hts lt` olttyiba }f` cpgg ghlm optt`b}" T`apgl}ihb

    040 lgsh s}izpgl}`s }fl} }f` mthz ib hg}la` cthe }f` spzzgy }`teiblgs }h }f`civ`m optt`b}psiba `|pize`b} eps} bh} `vo``m ?% cht giaf}iba oitopi}s lbm

    0% cht h}f`t ps`s hc }f` elibs hg}la`" ]fl} is' l elviepe hc 3"9 S cht

    giaf}iba oitopi}s lbm }fis `bspt`s

    }fl} }f` lzzltl}ps is `g`o}tiolggy misohbb`o}`m cthe }f` spzzgy qf`b }f` sqi}of

    is hb" ]f`s` mlys }f`t` lt` ibs}lggl}ihbs qi}f hgm lbm b`q ohghpt ohmiba lbmeltnibas" ]ldg`

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    457/548

    =?9

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    458/548

    ==:

    ]f` zgpa }fl} qigg ci} ib}h }f` shon`} eps} lgsh d` ohbb`o}`m zthz`tgy

    lbm lgg zgpas lbm shon`}hp}g`}s eps} ohbchte }h }f` lzzthztil}` s}lbmltms" I}

    is b`o`sslty `bspt` }fl} l zthz`tgy qit`m zgpa is ps`m cht lgg zht}ldg` `g`o}tiolg

    `|pize`b} ls chgghqs; dthqb qit` cht gi` ohbmpo}ht> dgp` qit` cht b`p}tlgohbmpo}ht> at``b(y`gghq qit` cht `lt}f ohbmpo}ht &Cia" Cia"

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    459/548

    ==

    iii" Ehmiciol}ihb hc }f` zthz`t}i`s hc }f` e`}lg &`"a" lgghyiba)>

    i" Lzzgiol}ihb hc ibfidi}hts>" Ol}fhmio lbm lbhmio zth}`o}ihb>

    i" Lzzgiol}ihb hc zth}`o}i` ohl}ibas"

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    =1 hc qfiof }f`t` lt` lbhmio' ol}fhmio' lbm eiv`m

    &lbhmio lbm ol}fhmio) }yz`s"

    ii" Ldshtz}ihb ibfidi}hts"

    iii" Slzhpt zfls` ibfidi}hts"

    i" Htalbio ht ibhtalbio ibfidi}hts"

    Elby ibfidi}hts lt` hvimi{iba la`b}s" _hmipe zfhszfl}`' ofthel}`s'

    bi}ti}`s' fymthvim`' sigiol}`' oltdhbl}` lbm dioltdhbl}` hc shmipe lt` oheehb

    ibhtalbio ibfidi}hts" ]f` oheehbgy ps`m htalbio ibfidi}hts lt` leib`s'

    f`}`thoyogio bi}tha`b ohezhpbms' spds}i}p}`m pt`l lbm }fihpt`l' e`tolz}lbs'

    spgzfim`s lbm f`ly e`}lg shlzs' `}o" Ib lp}hehdig` tlmil}hts' shmipe

    d`b{hl}`s lo} ls `cc`o}i` ibfidi}hts"

    Olp}ihb eps} d` lzzgi`m ib }f` |plb}i}y hc ibfidi}ht ps`m }h zth}`o} lb

    lbhm`" ]hh selgg l |plb}i}y ely bh} zthmpo` `bhpaf zth}`o}i` hvim` lbm' ic

    selgg pboh`t`m lt`ls hc e`}lg lt` g`c}' }f`y qigg d` l}}lon`m dy ib}`bsi`

    ohtthsihb t`spg}iba }h zi}}iba &chtel}ihb hc m``z' bltthq fhg`s)"

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    =1=

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    493/548

    =10

    T@C@T@BO@_ CHT CPT]F@T _]PMY

    Lfelm' [lni &4::3); Ztiboizg`s hc Ohtthsihb @baib``tiba lbm Ohtthsihb

    Ohb}thg> Les}`tmle; @gs`i`t(Dp}}`tqht}fF`ib`elbb

    Dl`onelbb' Q" hb' Q" _ofq`bn' lbm Q" Ztib{ & Oledtia`' @baglbm; Qhhmf`lmZpd"G}m # OTO Zt`ss GGO

    N`ggy' T" A"' K" T" _opggy' M" Q" _fh`sei}f lbm T" A" Dpoff`i} &4::?);

    @g`o}thof`eiolg ]`ofbi|p`s ib Ohtthsihb _oi`bo` lbm @baib``tiba>

    B`q Yhtn; Elto`g M`nn`t' Ibo"

    Z`t`{' B &4::=); @g`o}thof`eis}ty lbm Ohtthsihb _oi`bo`> B`q Yhtn;

    Ngpq`t Lolm`eio Zpdgisf`ts

    Zgi`}f' Qlgmcti`m &4::6); @g`o}thof`eis}ty cht El}`tilgs _oi`bo`>

    Les}`tmle; @gs`i`tT`i`' T" Q" ^`m"U &4:::); Pfgia!s Ohtthsihb Flbmdhhn' _`ohbm @mi}ihb>

    B`q Yhtn; Khfb Qig`y # _hbs' Ibo"

    Thd`ta`' Z" T" &4:::); Flbmdhhn hc Ohtthsihb @baib``tiba> B`q Yhtn;

    EoAtlqFigg

    _ofq`i}{`t' Z"L" &4::3); Ohtthsihb @baib``tiba Flbmdhhn' _`ohbm

    @mi}ihb; Ohtthsihb hc Zhgye`ts lbm @gls}he`ts> Dhol Tl}hb; OTO

    Zt`ss(]lyght # Ctlbois Athpz

    _ft`it" G" G"' Kltelb' T" L" lbm Dpts}`ib' A" ]" ^`ms"U &4:::); Ohtthsihb'

    Shgpe` < E`}lg@bithbe`b} T`lo}ihbs' ]fitm @mi}ihb> Hvchtm;

    Dp}}`tqht}fF`ib`elbb

    _ft`it" G" G"' Kltelb' T" L" lbm Dpts}`ib' A" ]" ^`ms"U &4:::); Ohtthsihb'

    Shgpe` 4 Ohtthsihb Ohb}thg> Hvchtm; Dp}}`tqht}fF`ib`elbb

    ]lgdh}' M lbm ]lgdh}' K" & Dhol

    Tl}hb; OTO Zt`ss

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    494/548

    =13

    OFLZ]@TBIB@]@@B

    CHPBMTY ZTLO]IO@

    ^@bat" Zthc" H"@" Hnhtlcht'D"_o"' E"_"' ZfM' CB_@U

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    495/548

    =11

    Ib ols}iba ztho`ss' i} is zhssidg` }h zglo` }f` lehpb} hc e`}lg l} `vlo}gy qf`t`

    i} is t`|pit`m> }fps elniba q`iaf} t`mpo}ihb ib m`siab lofi`ldg`" Ols}ibas

    a`b`tlggy mh bh} fl` mit`o}ihblg zthz`t}i`s ls }f`y lt` `vz`o}`m }h ohhg

    pbichtegy cthe lgg sim`s" D`olps` hc e`}lggptaiolg ohbsim`tl}ihb' o`t}libe`}lgs lbm lgghys olb hbgy d` ztho`ss`m dy ols}iba lbm bh} dy lby h}f`t

    chteiba ztho`ss' `"a" thggiba' chtaiba' ht `v}tpsihb" Ols}iba hc lby si{` lbm

    q`iaf}' ``b pz }h 4:: }hbb`s olb d` elm`"

    Hb }f` h}f`t flbm' }f` mie`bsihblg looptloy lbm sptclo` cibisf

    lofi``m dy bhtelg slbm ols}iba ztho`ss qhpgm bh} d` lm`|pl}` cht ciblg

    lzzgiol}ihb ib elby ols`s" Lgsh }f` slbm ols}iba ztho`ss is gldhpt ib}`bsi` }h

    she` `v}`b} lbm }f`t`cht` elby iezth`e`b}s lt` lie`m l} }fis spof ls

    elofib` ehpgmiba lbm chpbmty e`oflbi{l}ihb" I} is hc}`b bh} `lsy }h zthmpo`m`c`o}ct`` ols}ibas qi}f she` e`}lgs ht lgghys ls l t`spg} hc }f` ehis}pt`

    zt`s`b} ib slbm ols}ibas"

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    =16

    Cia"

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    =19

    dghqb hcc qi}f }f` f`gz hc d`gghqs" Bhq }f` ohz` lbm }f` mtla zl}}`tb flg`s

    lt` qi}fmtlqb dy psiba }f` mtlq szin`s lbm tlzziba }f` zl}}`tb lgg lthpbm }h

    sgiaf}gy `bglta` }f` ehpgm oli}y sh }fl} }f` ehpgm qlggs lt` bh} szhig`m dy

    }f` qi}fmtlqiba zl}}`tb" ]f` tpbb`ts lbm }f` al}`s lt` op} ib }f` ehpgmolt`cpggy qi}fhp} szhigiba }f` ehpgm" Lby `vo`ss ht ghhs` slbm chpbm ib }f`

    tpbb`ts lbm ehpgm oli}y is dghqb lqly psiba }f` d`gghqs" Bhq }f` cloiba

    slbm ib }f` chte hc l zls}` is lzzgi`m lgg h`t }f` ehpgm oli}y lbm }f` tpbb`ts

    qfiof qhpgm ai` }f` cibisf`m ols}iba l ahhm sptclo` cibisf"

    L mty slbm oht` is zt`zlt`m psiba l oht` dhv" Lc}`t spi}ldg` dlniba' i}

    is zglo`m ib }f` ehpgm oli}y ls sfhqb ib Cia"

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    =6:

    is }f` shgim s}l}` cthe }f` shgimps }`ez`tl}pt`" Elofibiba ht cibisf lgghqlbo`

    is lmm`m }h }f` zl}}`tb cht spds`|p`b} elofibiba qf`b l slbm ols}iba is

    cpbo}ihblggy t`|pit`m }h d` hc ahhm cibisf ht mie`bsihblggy looptl}`" _fln`

    lgghqlbo` is l t`mpo}ihb ib }f` htiaiblg zl}}`tb mie`bsihbs }h loohpb} cht }f``bglta`e`b} hc }f` ehpgm oli}y t`spg}iba' cthe tlzziba hc }f` zl}}`tb }h

    `bldg` i}s qi}fmtlqlg cthe }f` slbm ehpgm" S`t}iolg clo`s hc }f` zl}}`tb lt` ib

    ohb}ibplg ohb}lo} qi}f slbm' lbm d`olps` }fis ely mlela` }f` ehpgm oli}y l}

    }f` }ie` hc qi}fmtlqiba }f` zl}}`tb cthe }f` slbm ehpgm' }f` `t}iolg clo`s hc

    }f` zl}}`tb lt` lgqlys }lz`t`m cthe }f` zlt}iba gib` }h t`mpo` }f` oflbo`s hc

    }fis flzz`biba> lbm }fis zthisihb is olgg`m mtlc} ht }lz`t lgghqlbo`" Ct`sfgy

    shgimici`m e`}lg is q`ln lbm is gin`gy }h d` mis}ht}ihb zthb`' `sz`oilggy ghba

    cgl} zht}ihbs' S' P' ht ghba lbm }fib s`o}ihbs qfiof lt` ohbb`o}`m }h }fion

    s`o}ihbs" Ibs}`lm hc elniba `v}tl e`}lg zthisihb cht t`mpoiba }f` mis}ht}ihb'

    }f` sflz` hc zl}}`tb is ai`b l mis}ht}ihb hc `|plg lehpb} ib }f` hzzhsi}`

    mit`o}ihb hc }f` gin`gy mis}ht}ihb mit`o}ihb" I} is bh}`m }fl} qf`t` ohtiba is

    t`|pit`m' zthisihb sfhpgm d` elm` }h spzzht} }f` oht` ibsim` }f` ehpgm oli}y

    dy zthimiba oht` ztib}s qf`t` zhssidg`" Oflzg`}s lt` lgsh ps`m }h spzzht}

    oht`s ibsim` }f` ehpgm oli}y qf`b b`o`sslty"

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    =6 lbm s}ltof' m`v}tib slqmps}' lsd`s}hs lbm ayzspe &cht ibot`ls`m als

    z`te`ldigi}y lbm m`chte ldigi}y ht ohgglzsidigi}y)"

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    =63

    D`sim`s }f`s`' }f`t` lt` h}f`t }`s}s }h m`}`teib` spof zthz`t}i`s ls

    m`chtel}ihb' at``b }`bsig` s}t`ba}f' fh} s}t`ba}f' `vzlbsihb' `}o" ]f` m`}ligs hc

    }f`s` }`s}iba e`}fhms olb d` chpbm ib }f` t`c`t`bo`s oi}`m l} }f` `bm hc }fis

    oflz}`t"

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    =61

    =" ]f` e`}lg sfhpgm cghq sehh}fgy ib}h }f` ehpgm qi}fhp} lby

    }ptdpg`bo`" L }ptdpg`b} e`}lg cghq }`bms }h chte mthss ib }f`

    ehpgm"

    0" ]f` ehpgm sfhpgm d` ohezg`}`gy cigg`m ib }f` sfht}`s} zhssidg` }ie`qi}fhp} fliba }h tlis` e`}lg }`ez`tl}pt` ht ps` fiaf`t e`}lg

    f`lms"

    3" ]f` e`}lg `b}ty ib}h }f` ehpgm oli}y sfhpgm d` zthz`tgy

    ohb}thgg`m ib spof l qly }fl} lszitl}ihb hc }f` l}ehszf`tio lit is

    zt``b}`m"

    1" Pbqlb}`m el}`tilg spof ls sgla' mthss lbm h}f`t ehpgm el}`tilg

    sfhpgm bh} d` lgghq`m }h `b}`t }f` ehpgm oli}y"6" E`}lg cghq sfhpgm d` elib}lib`m ib spof l qly }fl} bh al}iba ht

    ehpgm `thsihb }ln`s zglo`"

    9" ]f` al}iba sys}`e sfhpgm `bspt` }fl} `bhpaf ehg}`b e`}lg t`lof`s

    }f` ehpgm oli}y"

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    _ztp` dls` q`gg is l t`s`thit cht e`}lg l} }f` dh}}he hc }f` sztp` }h t`mpo`

    }f` `ghoi}y hc }f` ehg}`b e`}lg dy qfiof ehpgm `thsihb is t`mpo`m" ]f`

    ehg}`b e`}lg }f`b oflba`s mit`o}ihb lbm cghqs ib}h }f` tpbb`ts ib l eht`

    pbichte elbb`t"

    Tpbb`t is a`b`tlggy ghol}`m ib }f` fhti{hb}lg zglb` &zlt}iba zglb`) lbm

    ohbb`o}s }f` sztp` }h }f` ibal}`s' }fps g`}}iba }f` e`}lg `b}`t }f` ehpgm oli}y"

    ]f` tpbb`ts lt` bhtelggy elm` }tlz`{himlg ib othsss`o}ihb" Cht `cc`o}i`

    }tlzziba hc }f` sgla' tpbb`ts sfhpgm cghq cpgg mptiba zhptiba"

    Al}` ht ibal}` is lb hz`biba }fthpaf qfiof }f` ehg}`b e`}lg `b}`ts }f`ehpgm oli}y" ]f` sflz` lbm }f` othsss`o}ihb hc }f` ibal}` ht al}` sfhpgm d`

    spof }fl} i} olb g`lm ehg}`b e`}lg cthe }f` tpbb`t ib}h }f` ehpgm oli}y

    qi}fhp} }ptdpg`bo`' lbm d` t`lmigy nbhon`m hcc qi}fhp} mlelaiba }f` ols}iba"

    Sltihps }yz`s hc al}`s lt` ps`m ib }f` ols}iba m`siab" ]f` oheehb`s} lehba

    }f`s` ibogpm`; }hz al}`' dh}}he al}`' zlt}iba al}` lbm s}`z al}`" Ib }hz al}iba'

    }f` ehg}`b e`}lg `b}`ts }f` ehpgm oli}y cthe }f` }hz" ]fhpaf }f` ehpgm ciggs

    `ty |piongy' }f`t` is }f` }`bm`boy cht ehpgm `thsihb lbm }ptdpg`bo` ib }f`

    ehpgm oli}y" I} is }fps zthb` }h chte mthss lbm is bh} t`ohee`bm`m cht bhbc`tthps el}`tilgs lbm is spaa`s}`m hbgy cht c`tthps lgghys lbm siezg` ols}iba

    sflz`s qfiof lt` `ss`b}ilggy sflgghq ib bl}pt`" Dh}}he al}` `b}`ts }f` ehpgm

    oli}y cthe }f` dh}}he" I} mh`s bh} olps` lby ehpgm `thsihb lbm is a`b`tlggy

    ps`m cht `ty m``z ehpgms lbm f`ly ehg}`b lgghys" I} }ln`s l ghba`t }ie` cht

    ciggiba hc }f` ehpgm lbm lgsh a`b`tl}`s l `ty pbclhptldg` }`ez`tl}pt`

    atlmi`b}" Zlt}iba al}`s lt` }f` ehs} qim`gy ps`m al}` ib slbm ols}iba" ]f`y

    `b}`t }f` ehpgm l} }f` zlt}iba zglb` qf`b zlt} hc }f` ols}iba is ib }f` ohz` lbm

    zlt} is ib }f` mtla" ]fis }yz` hc al}iba }ti`s }h m`ti` }f` d`s} hc dh}f }f` }hzlbm dh}}he al}`s" Hc lgg }f` al}`s' }fis is lgsh }f` `lsi`s} lbm ehs} `ohbheiolg

    ib zt`zltl}ihb" _}`z al}`s lt` ps`m cht f`ly lbm glta` ols}ibas" ]f` ehg}`b

    e`}lg `b}`ts }f` ehpgm oli}y }fthpaf l bped t hc ibal}`s qfiof lt` lttlba`m

    ib t}iolg s} zs" ]f si{ hc }f ibal} s lt psplggy m ot ls m cthe dh}}he }h }hz spof }fl} gi|pim

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    e`}lg `b}`ts }f` ehpgm oli}y cthe }f` dh}}heehs} al}` &}f` glta`s}) lbm }f`b

    zthat`ssi`gy eh`s }h }f` }hz" ]fis `bspt`s l atlmplg ciggiba hc }f` ehpgm

    qi}fhp} lby ehpgm `thsihb lbm zthmpo`s l shpbm ols}iba"

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    =9:

    e`}lg d`b`l}f olb d` `vzhs`m }h l}ehszf`tio zt`sspt`" Ib l ols}iba' e`}lggio

    ofiggs ely lgsh d` ps`m }h zthim` zthat`ssi` ht mit`o}ihblg shgimiciol}ihb ht

    }h lhim }f` sftibnla` oli}i`s' lbm `gieibl}` }f` ps` hc tis`t ib o`t}lib ols`s"

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    509/548

    =9 cthe ohtthsihb zthmpo}s hb ofiggs ht h}f`t ibs`t}s>

    ht cthe htalbio oht` dibm`ts"

    Ibogpsihbs ely d` mp` }h }f` zt`s`bo` hc sgla ht hvim` zlt}iog`s ib }f` ehg}`be`}lg" ]f`y ely lgsh ohbsis} hc slbm zlt}iog`s qlsf`m cthe }f` sptclo` hc l

    ehpgm qfiof fls d``b zhhtgy elm` ht ib qfiof ibc`tiht slbm fls d``b ps`m" L

    og`lb e`g} olb d` hd}lib`m dy zthz`t l}}`b}ihb }h cgpviba lbm snieeiba ztiht

    }h ols}iba' qfigs} clpg}y ehpgms olb d` lhim`m dy d`}}`t ibsz`o}ihb lbm

    lm`|pl}` slbm ohb}thg"

    Ohgm _fht}s t`spg} elibgy cthe glon hc cgpimi}y hc }f` ehg}`b e`}lg" ]f`y

    lzz`lt ls s`legin` misohb}ibpi}i`s qfiof lt` chte`m qf`b }qh e`}lg s}t`les

    e``} ibsim` }f` ehpgm dp} fl` ibspccioi`b} cgpimi}y }h lgghq }f`e }h dt`ln }f`

    hvim` ciges qfiof s`zltl}` }f`e" Eistpbs lt` lgsh mp` }h glon hc cgpimi}y ib

    }f` e`}lg' lbm t`c`t }h ols}ibas qfiof lt` hc ibohezg`}` iezt`ssihb' }f`

    ehg}`b e`}lg bh} fliba z`b`}tl}`m }h lgg t`o`ss`s hc }f` ehpgm" Lzlt} cthe

    dlm zl}}`tb m`siab ib }f` chte hc `ty }fib s`o}ihbs qfiof ofigg }f` e`}lg' spof

    m`c`o}s lt` mp` lgehs} `b}it`gy }h zhptiba e`}lg qfiof is }hh ohgm' lbm qfiof

    }f`t`cht` glons cgpimi}y"

    L bped`t hc m`c`o}s ely ltis` cthe clpg}s ib ehpgm ohbs}tpo}ihb ht cthe

    zhht|plgi}y slbm" Ic }f` slbm fls d``b ghhs`gy tlee`m' ht ic i} mh`s bh}

    ohb}lib spccioi`b} dibmiba el}`tilg' s`o}ihbs hc }f` ehpgm ely d` `thm`m dy

    }f` s}t`le hc ehg}`b e`}lg' aiiba tis` }h thpaf gpezs hc `vo`ss e`}lg hb }f`

    ols}iba" ]f`s` lt` psplggy olgg`m sols" Ic ohlts` slbm fls ``b ps`m ib }f`

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    =93

    zt`zltl}ihb hc }f` ehpgm sptclo` ehg}`b e`}lg ely z`b`}tl}` }f` szlo`s

    d`}q``b }f` atlibs qi}fhp} m`}lofiba }f`e" ]f` hdihps t`e`my is }h ps`

    cib`t cloiba slbm" @vo`ssi`cibs hb }f` ols}iba lt` mp` }h ghhs`gy ci}}iba oht`s

    ht }h }f` ohz` lbm mtla bh} ci}}iba oghs`gy }ha`}f`t l} }f` zlt}iba gib`"

    Fh} ]`lts lt` otlons qfiof lt` chte`m dy ohb}tlo}ihb s}t`ss`s ib l ols}iba'

    kps} ls shgimiciol}ihb is ohezg`}` lbm qfigs} }f` e`}lg is s}igg t`gl}i`gy q`ln ht

    }`bm`t" _pof otlons lt` }yzici`m y lb itt`apglt ctlo}pt`m sptclo` qfiof is

    f`ligy hvimis`m" ]f`y ely d` mp` }h clpg}y m`siab hc }f` zl}}`tb" Fh} }`lts

    ely lgsh d` chte`m dy oht`s qfiof lt` }hh fltm lbm qfiof mh bh} ohgglzs`

    `lsigy `bhpaf pbm`t }f` zt`sspt` hc }f` shgimicyiba lbm ohb}tlo}iba e`}lg"

    Zhht m`siab hc ols}ibas olpsiba ib}`tblg s}t`ss`s }h d` s`} pz mptiba ohhgiba

    ely lgsh g`lm }h qltziba"

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    =91

    T@C@T@BO@_

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    =96

    \P@_]IHB_

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    =99

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    0::

    OFLZ]@T ]Q@B]Y

    \PLGI]Y IB_Z@O]IHB # GIEI] _Y_]@E

    &_LEZGIBA ( _I[IBA ]@OFBI\P@_)

    ^@bat" P" Eltn' D"@ba> E"@ba> EB_@' T"@bat &OHT@B)U

    4:"< Ib}thmpo}ihb

    \plgi}y' loohtmiba }h }f` m`cibi}ihb lmhz}`m dy }f` Le`tiolb _hoi`}y

    cht \plgi}y is; ]f` }h}lgi}y hc c`l}pt`s lbm ofltlo}`tis}ios hc l zthmpo} ht

    s`tio` }fl} `lts hb i}s ligi}y }h sl}iscy s}l}`m ht iezgi`m b``ms" ]f` |plgi}y

    hc l zthmpo} olb d` lso`t}lib`m dy ibsz`o}iba i} cht o`t}lib |plgi}y ltildg`s

    lbm(ht l}}tidp}`s" Dy ltildg` q` e`lb lby ofltlo}`tis}io hc l zthmpo} qfiof

    olb d` e`lspt`m lbm `vzt`ss`m ib bpe`tiolg lgp`s `"a"' mie`bsihb ht si{` &ib

    eiggie`}`ts)' fltmb`ss &ib fltmb`ss solg` bped`ts)' zhq`t tl}iba &ql}}s)' `}o"

    Hb }f` h}f`t flbm' lb l}}tidp}` is l ofltlo}`tis}io qfiof olbbh} d` e`lspt`m

    mit`o}gy lbm `vzt`ss`m bpe`tiolggy' dp} is `i}f`t zhss`ss`m ht bh} zhss`ss`m dy

    }f` zthmpo}" @vlezg`s lt` ohghpt' sptclo` cibisf' qf`}f`t ht bh} }f`t` dp}}hbs

    hb l sfit} ht l zlt}iopglt bped`t lbm si{` hc fhg`s lt` mtigg`m ib l ohezhb`b}'

    `}o" L `ty oheehb }yz` hc l}}tidp}` ibsz`o}ihb is mhb` dy }f` AH lbm BHAH alpa`s" ]f` t`spg} hc l of`on cht lb l}}tip}` olb ` `vzt`ss`m ls zlss ht

    clig' ohtt`o} ht ibohtt`o}' loo`z}lg` ht pbloo`z}lg` lbm ahhm ht

    lm"

    Ibsz`o}ihb is lb lsz`o} hc|plgi}y ohb}thg &\O) qfiof e`t`gy s`zltl}`s }f`

    ahhm lbm dlm cthe l gh} ht dl}of" Cht `vlezg`' ibsz`o}ihb }`ggs qf`}f`t l zlt}

    is qi}fib }f` loo`z}ldg` si{` giei}s ht bh}" Qf`t`ls \O dtibas zthmpo}ihbzltle`}`ts pbm`t ohb}thg cht }f` zptzhs` hc `bsptiba lbm iezthiba |plgi}y'

    ibsz`o}ihb s`zltl}`s }f` ahhm cthe }f` dlm cht e``}iba ht cligiba |plgi}y

    t`|pit`e`b}s" ]fps' \O `bglta`s }f` zthmpo}ihb zig` qfig` ibsz`o}ihb

    `bglta`s }f` sotlz zig`" Ibsz`o}ihb olb ibhg` e`lspt`e`b}' }ls}iba'

    }hpofiba' q`iafiba' ht }`s}iba hc }f` zthmpo} &she`}ie`s }f` }`s}iba ely d`

    m`s}tpo}i`)" Qf`t` lbm qf`b }h ibsz`o} ibogpm`;

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    0: qfig` }f` zthdldigi}y hc loo`z}iba

    l dlm gh} is l }yz` II `ttht"

    Ciapt` 4:"4; Lb Hz`tl}iba Ofltlo}`tis}io &HO) Opt` _fhqiba

    Zthmpo`ts lbm Ohbspe`ts Tisns

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    0:9

    ]ldg` 4:"4; Ml}l cht }f` HO opt` hc Ciapt` 4:"