Engineering and Technology Journal

The effect of mill diameter ( D = 74.3 , 86.6 , 99 and 112.5 mm ), ratio of feed volume to mill volume ( V - 10,30,50,70 % ), number of balls ( N = 2,3,4, 5,6 and 7 balls), ball diameter (d = 10,20,30 and 37.5 mm), mill speed (RPM - 60,80,90 and 100% of max. mill speed), grinding tim

lh",lte,t ot t. rcnpottiot tt,phtJ rrc\\rt q .nnrn tion t?ta.itr tl tdd lion tt 4h tnto O\idt bv ist p rhe ta\it^\ilir^. tht tn tr'tr, tnv.ntc tht_ th. opp rdh^ ta \nt ot na in.h.; r,d torpi die ,hih r_-tr!n[Etqh tpprtne_th?n tti.,t rt"t\urr,r.ied ov.rthp ranuoliJ-] b ju t, .'tfl and tte.o qnttion rytatiry nd;ulrtt tttn tq,r h taat \nLhn;_ rt.d \it.\ uv) r,Pt,''" \4 tt00 r00i,1500.404 o41 35oLt .tL itu Hvund d"nua ofldt tu^ \.h.ht ht o ttv. t\4lttt_ttu nttpre: tn \nitt!ndr\\ a,tn ond thc perhtug.\;l t,e tost\ t ttptt lncrct tttr eo.h a\e veHetnltuttd.
it,\t, tfthxp. .| t,tnt^poo,l ttht it q nto[, ntri1 u id t nt\tlii chn,t+,,pJltil., atttp hiBh \h,rdhfio rnudt) at J rprrrc Jot alt ted,n nk nz?\.
'tRtt "ttt^,rtr h,lt
^ tnttntr.rrr ht u'. tt.\igh tl,"tt^ n, orni i. t.,,?7,."'tt* t,^\|; , tor n:, ,.rturtiun at \oti.l txttin

Etz.oictl anrl athelc.tb,i. pnqnics oJ! pbsLh-$ het toja iot tt t4ctot htrc
h*n i,vestigated. Ihe clcltticot lopc ies nnde .lotk co"ditio, shaw a leoillins
bchuiou wirh to$ rc.tiJi.atio .fnetot, @d dhib s soi btenktoyn ,ew*c.bte;.
c-t'chotoct.tt,icr lugs.st thnt tte t'brbobn dione nts tbtupt ttpe, 6uih nt
?ot.ntial detehnrcd br dtrupota,io"_f.otn

The p hotol lnihe tcen k eabi l itt of the pora,s siticon praduce.t br lase dtctt
etchihe ofsilicon has been studktl. t:te hoe e pt.,/et a ntethatl b;nprcv nt pt,
stobiiity af lE potous rtuute lhe porots sbuctwe was coate.t bf o thjh paunul tulv trhich i\ transpdtehl la thc risible lij.ht entte.l br the Si na otrtajties rhl
" -" aat a,1, d. t b, a p"t, -"t ta. . arJ tt.? {: o, tt / _ _,n,t t
lilicon haroc,ystallitcs doe' nal rcduce ||hh the azks tjne. I has beeh oble ed ha1
llE p.lrhu taated IA Nahpks arc che Xa r :labi ahd that teatls tb inFow the
phatoltnikeeare stabilit! otthe parcus liliattuth aqihq tine

Sntd) of the hldto4ttonis at pqt\?d cot@n it ol eit inpo,tah.c ii thp.. h ap ohd
u"d?Etdhdine oI tu.h .oluhh!. Th? ba,A hi,nE oppea^ aua"g he tuat )1,,.,_ httndt,tdtc of th? pu^ed aturM- the,.Jon n 4e i;f but !h. Jortoniug , *ati. in,*" hinng, noneh, rapena, ohptLud?, ttipnwd iha!; vetocry ant aqueou\ D
otEonic phas.llaw Nt. mtio ercst ietL The certut co,tpostt.,oioroore aisigt Ms
uvd i, thh s!4d! to.onduct thp eteel of the ttudied eanables. Accodtlgtr, N.;U-Jiye dpenh rs nep e.d?d *itl an exttu 5 6.d lot tzptielion. Morcqq Etuk" & je;ws
laten optinizotio, ,iahon was attopted to det.ththe the aptnun coa.titia s ith
ttspect to rhe sl*lied wiabter .-r cotuha ol 2A balfled s .n cohpa hekts ||ds uytt, nit, dn insidc liahpkt o15,03 ,h 60, . oit - w \wtcd w \ u.ed u tt* binaa
.tndition. Ih? re\uh\ short th.t tht optin,un conditio$ dt n6inu ba.t niinE.;
lr.4ulnt.r tt-6 t ), tnplitd. tt.t rq),.lip+sed phai !.b.n! tA uqkort to orya,ic phd:e|low ntte ratio (AS).

la the pt$e,t pdpe4 silicot p-a jmction d.t .ld of 600 + 25 tn p.aL rc$@w h6 been
ehaructdiz.d. 1'hb itaL vas ohaiae.l b, depditing high pu,it! Au thin ith onto s.Din|e
sidc of th. tn juncnon 6otoB te), thts ftn red"cs the rctpNi'iy i the MFLR
regi,n (800 - 1100) tn ond leab to pea* tuspme at 600 ne The trlt tight photowttai
cldtu.t.tittics, qectral Nlpo tiritr, ud quantau etrcien.r e. eredtb dep.aded o the
Photo4 tr snitsiot oJA,Jllit E pe.i entat auta sttoeetl th.t the,Lo.rot Bpomitit:i
in d,. neaf

In this study ele.ttuless hickel cootihq arc .lepasne.l an high .arban low allor steel
type(t3 Abubsnatu Afii cootinEs so,,e specide$ eft heat trcated at diterent
baki g tenperururcs ranging {ron 30A to 8A0 C lat oke how
Weat ening4 sjhs a derice alpin on rata/! disc we.. cati.Ll bh.ld the codted
steel belbre oad alet battihc ieaL
lt is conclude.l thdt electrale$ ickel caatihg md bakng ieatnents both
e|entuat effect on vear resnhnce aJ stu.lie.l tleet

Abstract In this present work computational models are fabricated , these model depended on the elements of longitudinal finned tube to design the roll bound evaporator . The computational models consist of empirical and mathematical correlation beside values of each design variables and variable boundaries

Abstract This research has studied the Effect of Lifted Liquid Density on the Function of Air Lift Pump which consisted of a suction pipe and mixing chamber with diameter [ ( 0.0635,0.0635 ) m ] , length [ ( 0.3,0.3 ) m ] and a lifting pipe of diameter ( 0.0317 m . ) length ( 2m ) . An empirical practica

Abstract : This research has studied the properties of dry sliding wear of three groups of copper alloys , Aluminum bronze , Silicon bronze and Admiralty gun bronze . These three groups were prepared by melting and casting in a metallic molds . These wear samples have been examined by using

Abstract Laminar burning velocity for ( L.P.G - Air ) premixed mixture was measured by using square burner and the technique of area method with range of equivalent ratio ( 0.883-1.233 ) . To obtain a stable flame front with flat faces a square burner was designed and manufactured which give two dimensional

Abstract This research is devoted to study the wear characteristics of aluminum - 16 % silicon under dry sliding conditions at room temperature , using ( Pin - on - Disc ) technique . The wear rate has been measured as a function of alloy composition . i.e. various percentage of Pb , normal load , sliding

Abstract The spraying process has been applied by spraying of Cu - 15 % Sn - 0.65 % P wire on a medium carbon ( 0.4 % ) . The effect of the mechanism of lamella formation on the microstructure features and other properties such as roughness , hardness and phases formation , has been studied . It has

Abstract The research studies the effect of the blade vibration on the dynamic response of turbo - compressor rotor system . The design angles for the blades , gas entrance and exits and the missing of a fraction of blade mass have been studied with the existence of the forced vibration . The critical