Development of 590MPa grade DP GA steel for automotive outer panel use

Size: px
Start display at page:

Download "Development of 590MPa grade DP GA steel for automotive outer panel use"

Transcription

1 Acciio Development of 590MP grde DP GA steel for utomotive outer pnel use M. B. Moon, S. W. Lee, S. J. Prk Recently high strength steels with high formility for utomotive prts hve een eing developed to meet the demnds of pssenger sfety nd weight reduction of cr ody. Among these high strength steels, dul phse(dp) steels re regrded s one of the ttrctive steels due to their excellent mechnicl properties including high strength nd ductility. However, typicl high strength steels contin strengthening elements tht forms surfce oxide nd thus deteriorte glvnizing property. Glvnizing of high strength steel is required to stisfy corrosion resistnce of utomotive ody. Typicl outer pnel prts requiring nti-dent property re comprised of 340MP grde ke hrdened(bh) steel, ut the trend of lightweight cr ody drives steels to hve higher strength for outer pnel use. 490MP grde DP steel is eginning to e pplied into some utomoiles, nd 590MP grde DP steel is good cndidte for the future outer pnel mteril. In this study, severl kinds of lloys for enhncing glvnizility were produced in the lortory scle, nd the effects of continuous nneling conditions in CGL on the mechnicl properties were investigted. The microstructure nd phse distriution were exmined with SEM, EBSD, TEM nd so on. Line tril production ws conducted with the selected chemicl composition of steel. Formility, weldility nd CAE nlysis of steel sheet ws lso performed. Through the study, the production of 590MP grde dul phse glvnneled steels with good formility nd glvnizility ws shown to e possile. Keywords: Dul phse steel, Automotive, Outer pnel, Glvnneled, Glvnizility INTRODUCTION Cr mkers re mking every effort to enhnce the structurl design of cr ody nd the fuel efficiency to meet the strengthened sfety nd environmentl regultions. And ccording to the diversifiction of the customers' needs, utomotive compnies re looking for dvnced high strength steels with good formility. Therefore severl kinds of new concept high strength steels including dul phse(dp), trnsformtion induced plsticity(trip), mrtensitic(ms) nd complex phse(cp) steels were introduced s shown in Figure 11). Among these steels, DP nd TRIP steels re intensively eing studied y steelmking compnies. These two types of steels hve the dvntge of higher strength nd etter formility thn the similr grde high strength steels. Especilly DP steels re good cndidtes for the utomotive outer pnel ecuse they hve ke hrdening property, which exhiits significnt increse in strength fter press forming nd susequent therml cycle such s pintking opertion. Typicl steel grde for utomotive outer pnel is 340MP BH steel, ut the trend of lightweight cr ody drives steels to hve more strength to e pplied to the outer pnel such s 490MP DP steel. Automotive steels lso require corrosion resistnce ecuse of the extended lifetime of utomoile nd the incresed use of deicing gent on the rod, so hot dip glvnized steel is incresingly pplied to the utomoile prts. High strength steels including DP steels usully contin severl kinds of strengthening elements such s Si, Mn nd so on, ut these strengthening elements lso deteriorte the glvnizing property due to the surfce oxides formed during nneling process, nd these oxides re criticl in surfce defects of outer pnel. In this study, 590MP grde DP GA steels for utomotive outer pnel is eing developed. To e successfully pplied to the u- Mn Been Moon, Sng Wook Lee, Sng Jin Prk Hyundi HYSCO, Kore Keynote lecture presented t the 8 th Int. Conf. GALVATECH 2011, Genov, June 2011 FIG. 1 Trend of dvnced high strength steel nd outer pnel for utomotive use. Tendenz dell utilizzo di ccii d lt resistenz per pnnelli esterni di impiego utomoilistico. L Metllurgi Itlin - n. 3/

2 TAB. 1 FIG. 2 Chemicl composition (wt.%) of steels. Composizione chimic degli ccii (peso %). Schemtic digrm of intercriticl nneling nd isotherml holding process of DP steels. Digrmm schemtico dei processi di ricottur intercritic e mntenimento isotermico degli ccii ifsici. tomotive outer pnel, vrious requirements such s mechnicl properties, weldility nd press formility hve to e stisfied. So, the lloy design ws focused on lowering Si concentrtion down to 0.1wt.% nd dding Cr, Mo, Al insted to stisfy desired mechnicl property nd to enhnce glvnizility. Microstructurl nlyses were lso crried out with scientific equipment such s FEG-SEM nd TEM. EXPERIMENTS Mterils Ten kinds of experimentl ingots were mde in lortory y vcuum induction furnce. They were reduced into 25 mm thick sl, homogenized t 1200 nd then hot rolled to 3 mm. Finishing temperture fter rolling ws 900 nd smples were hold t 620 for 30 minutes to simulte the coiling temperture. After pickling in 10% hydrochloric solution t 80, steel sheets re then cold rolled to 0.7 mm thick. Het tretment simultion To evlute the intercriticl nneling nd isotherml holding temperture, Thermo-clc softwre nd diltometric nlysis were used. With these dt, het cycle for the het tretment simultor(cct-awt-ii, ULVAC, Jpn) were set up. Steel sheets were nneled in the intercriticl nneling temperture(iat) rnge of 760 to 840 nd isotherml holding temperture(iht) rnge of 420 to 540. Anlysis of microstructure Specimens were polished, etched with 2% Nitl nd LePer so- FIG. 3 Effect of lloying elements in equilirium phse digrm nd phse frction; () E1(0.03Al) vs. E3(0.2Al), () E5(2.0Mn) vs. E8(1.8Mn, 0.2Cr). Effetto degli elementi di leg sul digrmm di equilirio di fse e sull frzione di fse; () E1(0.03Al) vs. E3(0.2Al), () E5(2.0Mn) vs. E8(1.8Mn, 0.2Cr). 44 L Metllurgi Itlin - n. 3/2012

3 Acciio FIG. 4 Austenite frction of vrious smples () E1 vs. E3 (effect of Al) () E5 vs. E8 (effect of Mn). Frzione ustenitic dei vri provini. () E1 vs. E3 (effetto di Al) () E5 vs. E8 (effetto di Mn). FIG. 5 Effect of () IAT(760 ~ 840 ) nd () IHT(420 ~ 540 ) on ustenite frction in E1 steel. Effetto di () IAT(760 ~ 840 ) e () IHT(420 ~ 540 ) sull frzione ustenitic nell cciio E1. lution, nd then exmined with opticl microscope. Etching for 5 seconds with LePer solution mde the mrtensite phse right, enling the clcultion of volume frction y imge nlysis. EBSD nlysis ws performed with electrolytic polished smples, TEM ws used for the surfce oxide nlysis. RESULTS AND DISCUSSIONS Thermodynmic clcultion The lloys were nneled in intercriticl region where oth ferrite nd ustenite phse exist together, followed y quenching. This intercriticl nneling is crucil in determining the ustenite frction, which trnsforms into mrtensite phse. So, we clculted Ae1 nd Ae3 temperture in the phse digrm nd the ustenite frction in intercriticl temperture y Thermoclc softwre. In Fig. 3(), incresed Al concentrtion elevtes oth Ae1 nd Ae3 line, so in the sme nneling temperture, specimen E3 is expected to exhiit less ustenite frction compred with specimen E1. In Fig. 3(), Mn ddition lowers the trnsformtion temperture, ecuse Mn is n ustenite stilizing element. So, specimen E8 exhiit high Ae1 nd Ae3 temperture compred with specimen E5, thus hve less ustenite frction lso. Diltometric nlysis Diltometric nlysis ws performed to exmine the phse trnsformtion ehvior during het tretment. Austenite phse formed during intercriticl nneling prtilly trnsforms into ferrite or inite until cooled down to isotherml holding temperture, followed y mrtensitic trnsformtion of the rest of ustenite in the finl cooling stge. Fig. 4 illustrtes the chnge of ustenite volume frction ccording to the lloying elements mesured y diltometric nlysis when IAT ws 800 nd IHT ws 480. In Fig. 4(), E1(low Al) nd E3(high Al) specimens were compred. Austenite frction of E3 specimen is low in the intercriticl nneling stge, ut it shows less trnsformtion to ferrite during cooling, resulting in higher ustenite frction t the end of isotherml holding stge. In Fig. 4(), E5(high Mn) nd E8(low Mn) specimens were compred. Austenite frction during IA stge ws lmost sme, ut the ustenite stility of E8 specimen ws etter, resulting in higher frction. Effect of het tretment on the phse trnsformtion ws s- FIG. 6 Mechnicl properties of specimens ccording to micro-lloy elements. Proprietà meccniche dei provini second degli elementi microlegnti. sessed y dilttion. Specimen E1 experienced IAT of 760, 800, 840 nd IHT of 420, 480, 560 during dilttion. In Fig. 5(), higher intercriticl nneling temperture promotes lrger frction of ustenite, ut the frction drops rpidly during cooling, thus mking less ustenite thn lower IAT cse. This is ecuse lower frction of ustenite holds more cron, thus hindering ferrite phse trnsformtion during cooling. Fig. 5() shows tht lower isotherml holding temperture mkes less ustenite, ecuse initic trnsformtion is progressed t round 500. Mechnicl properties nd microstructure nlysis ccording to het tretment Fig. 6 shows the mechnicl properties of specimens ccording to micro-lloying elements. Increse in strength is chieved more y ddition of Mo+ (Cr, B, Al) elements rther thn ddition of Mo lone. Especilly, Mo-Cr ddition cn increse oth strength nd elongtion. Mo-B ddition cn increse tensile strength nd yield strength lso, resulting in higher yield rtio which is undesirle in DP steel. Mo-Al ddition cn increse L Metllurgi Itlin - n. 3/

4 FIG. 7 Mechnicl properties of E1 specimen ccording to ) IAT (t IHT 480 C) nd ) IHT(IAT 800 C). Crtteristiche meccniche dei provini di cciio E1 secondo: ) IAT (t IHT 480 C) e ) IHT(IAT 800 C). c d e FIG. 8 Microstructure of E1 specimen (LePer solution etched, right white:mrtensite); () IAT 760 & IHT 480, () IAT 800 & IHT 480, (c) IAT 840 & IHT 480, (d) IAT 800 & IHT 420, (e) IAT 800 & IHT 540. Microstruttur dei provini di cciio E1 (ttcco chimico con soluzione LePer, in inco rillnte: l mrtensite) ); () IAT 760 & IHT 480, () IAT 800 & IHT 480, (c) IAT 840 & IHT 480, (d) IAT 800 & IHT 420, (e) IAT 800 & IHT 540. c d e FIG. 9 EBSD phse mp of E1 specimen5) (yellow:mrtensite); () IAT 760 & IHT 480, () IAT 800 & IHT 480, (c) IAT 840 & IHT 480, (d) IAT 800 & IHT 420, (e) IAT 800 & IHT 540. Mpp di fse con EBSD sul cmpione E1 (mrtensite in gillo) () IAT 760 & IHT 480, () IAT 800 & IHT 480, (c) IAT 840 & IHT 480, (d) IAT 800 & IHT 420, (e) IAT 800 & IHT 540. FIG. 10 Mrtensite volume frction of E1 specimen ccording to IAT nd IHT; () Effect of IAT () Effect of IHT. Frzione in volume dell mrtensite nel provino E1 in funzione di IAT e IHT () Effetto di IAT () Effetto di IHT. tensile strength, ut decrese elongtion. Fig. 7 shows the mechnicl property ccording to IAT nd IHT. Mrtensite volume frction ws evluted y opticl microscope4) nd EBSD nlysis. Microstructure ccording to het tretment ws shown in Fig. 8. In ccordnce with the dilttion results, it is shown tht lower IAT nd higher IHT mkes more mrtensitic trnsformtion. EBSD results re shown in Fig. 9. Fig. 10 shows the summry of mrtensite frction nlysis. Mrtensite volume frction of the specimens using opticl microscope nd EBSD show similr results, wheres non-liner dilttion results2,3) re pproximtely 5% higher thn those. All of these mesurements show the sme tendency tht mrtensite frction is incresed s IAT is lower nd IHT is higher, resulting in higher tensile strength nd lower elongtion. Hot dip glvnizility Surfce oxide formed during het tretment ws nlyzed y TEM, nd crosssection of coting lyer ws nlyzed y SEM. Surfce morphology of specimens contining 0.1wt.% nd 0.2wt.% Si re nneled in tmosphere with dew point of -20, - 35, -50 s shown in Fig. 11. On the surfce of 0.1wt.% Si specimens, mcro crcks re found 46 L Metllurgi Itlin - n. 3/2012

5 Acciio FIG. 11 TEM of surfce oxides nd SEM crosssection ccording to Si concentrtion nd Dew Point. Ossidi superficili l TEM e sezione trsversle l SEM in funzione dell concentrzione di Si e del Dew Point. TAB. 2 Surfce oxide nd wettility ccording to Si concentrtion nd dew point. Ossidi di superficie e gnilità in funzione dell concentrzione di Si e del dew point. t the dew point of -20, wheres crcks re diminished t the dew point of -35. In cse of 0.2wt.% Si specimens, crcks re found t the dew point of -20 nd -35. In oth cses ove, crcks re not found t the dew point of -50. The crcks re due to the oxides formed long grin oundry, nd the oxide nd crck ecome diminished s dew point gets lower. Tle 2 shows the summry of surfce oxide nlysis result ccording to Si concentrtion nd dew point. Chemicl composition nd dew point determine the oxide formed on the surfce, thus ffect the wettility in molten zinc. When dew point is too low, Si oxide forms preferentilly, so tht the wetting ngle cn e incresed. In this study, steel with 0.1 ~ 0.2wt.% of Si in dew point of -20 ~ -35 were shown to e le to suppress the Si oxide formtion, nd improve the wettility6). Weldility Spot welding test ws performed y DC spot welding mchine. Tle 3 shows the welding condition performed. Mny vriles such s welding current, pplying time, pressure nd cycle time ws considered. Tensile test of welded specimens showed tht the welded spot hd enough strength so tht the filure occurred in the sustrte, not in the welding point. Press formility (Computtionl nlysis) Fig. 13 shows the computtionl nlysis result of press forming simultion in ctul process condition(500ton press mchine, cushion press 8.3ton). Auto-Form softwre ws used in this simultion, nd it ws shown tht strin contour is under the for- ming limit re. Good formility nd surfce ppernce ws confirmed y ctul press test s Fig. 13(c). CONCLUSIONS In this study, following results re otined. 1. Influence of het tretment on the mechnicl properties ws investigted. Mrtensite frction is incresed s IAT is decresed nd IHT is incresed, resulting in higher tensile strength nd lower elongtion. This result corresponds with the mrtensite frction mesured y diltion, opticl microscope nd EBSD nlysis. 2. Surfce oxides were nlyzed y TEM. By reducing Si concentrtion to 0.1~0.2 wt.%, it ws shown to e possile to restrin Si oxide formtion on the surfce in the nneling tmosphere with dew point of -20~-35, lso possile to enhnce the wettility in molten zinc nd thus improve glvnizility MP grde DP steel developed in this study ws estimted to hve cceptle properties including formility nd weldility s utomotive outer pnel. REFERENCES 1) Bertrm Ehrhrdt et l. AHSSS Proceedings (Colordo, 2004), p.39 2) J. Z. ZHAO et l. ISIJ Int., 41 (2001), p ) M. Gomez et l. ISIJ Int., 43 (2003), p ) Amr K. De et l. Advnced Mterils & Process (2003) p.27 5) Jun-Yun Kng et l. ISIJ Int., 51 (2011) p.130 6) Mrcel Lmerigts et l. Applied Surfce Science (1999) p.334 L Metllurgi Itlin - n. 3/

6 Acciio TAB. 3 Spot welding condition. Prmetri di sldtur punti. FIG. 12 Tensile test result of spot welded specimens. Risultti dell prov di trzione dei provini sottoposti sldtur punti. FIG. 13 () FLD nlysis, () CAE simultion of Door Outer nd (c) ctul press test result. Anlisi FLD (), simulzione CAE () di pnnello esterno di portier e (c) risultti dell prov di pressione effettiv. Astrct Sviluppo di cciio 590MP grdo DP GA per impiego nei pnnelli esterni degli utoveicoli Prole chive: Recentemente, l fine di soddisfre le esigenze di sicurezz dei psseggeri e i requisiti di riduzione del peso del corpo vettur, sono stti sviluppti ccii d lt resistenz con elevt formilità per prti dell crrozzeri. Tr questi ccii d lt resistenz, quelli ifsici (Dul-Phse - DP) sono considerti prticolrmente promettenti grzie lle loro eccellenti proprietà meccniche, segntmente per l loro elevt resistenz e duttilità. Tuttvi, i tipici ccii d lt resistenz contengono elementi di leg che formno un ossido superficile e ne consegue il deteriormento del comportmento nel trttmento glvnico che, negli ccii d lt resistenz, è necessri per ottenere uon comportmento verso l corrosione dell crrozzeri. Le prti tipiche del pnnello esterno, per le quli sono necessrie crtteristiche nti-indentzione, sono costituite d grdi di cciio 340MP indurito (BH), m l tendenz verso un crrozzeri più legger port d impiegre ccii con mggiore resistenz nei pnnelli esterni. In lcune utomoili si inizi d utilizzre cciio ifsico di grdo 490MP e l cciio ifsico di grdo 590MP è un uon cndidto per divenire il mterile futuro per i pnnelli esterni. In questo studio, diversi tipi di leghe sono stti prodotti su scl di lortorio per migliorre le ppliczioni glvniche, e sono stte investigti gli effetti sulle proprietà meccniche delle condizioni di ricottur continu nell CGL. L distriuzione dell microstruttur e delle fsi sono stti esminti medinte SEM, EBSD, TEM ecc.. E stt condott un prov di produzione in line con l composizione chimic dell cciio oggetto dello studio. Inoltre sono stte eseguite indgini sull lvorilità, sldilità e CAE sul lminto. Attrverso lo studio è stt dimostrt essere possiile l produzione di cciio ifsico 590MP glvnizzto con uon formilità e trttilità superficile. 48 L Metllurgi Itlin - n. 3/2012

Study of cracks propagation inside the steel on press hardened steel zinc based coatings

Study of cracks propagation inside the steel on press hardened steel zinc based coatings Rivestimenti Study of crcks propgtion inside the steel on press hrdened steel zinc bsed cotings P. Drillet, R. Grigoriev, G. Leuillier, T. Vietoris Al-Si coting is the most suitble solution for min Hot-Forming

More information

** Dpt. Chemical Engineering, Kasetsart University, Bangkok 10900, Thailand

** Dpt. Chemical Engineering, Kasetsart University, Bangkok 10900, Thailand Modelling nd Simultion of hemicl Processes in Multi Pulse TP Experiment P. Phnwdee* S.O. Shekhtmn +. Jrungmnorom** J.T. Gleves ++ * Dpt. hemicl Engineering, Ksetsrt University, Bngkok 10900, Thilnd + Dpt.hemicl

More information

Simulation of operation modes of isochronous cyclotron by a new interative method

Simulation of operation modes of isochronous cyclotron by a new interative method NUKLEONIKA 27;52(1):29 34 ORIGINAL PAPER Simultion of opertion modes of isochronous cyclotron y new intertive method Ryszrd Trszkiewicz, Mrek Tlch, Jcek Sulikowski, Henryk Doruch, Tdeusz Norys, Artur Srok,

More information

COMPONENTS: COMBINED LOADING

COMPONENTS: COMBINED LOADING LECTURE COMPONENTS: COMBINED LOADING Third Edition A. J. Clrk School of Engineering Deprtment of Civil nd Environmentl Engineering 24 Chpter 8.4 by Dr. Ibrhim A. Asskkf SPRING 2003 ENES 220 Mechnics of

More information

EQUATIONS OF LINES AND PLANES

EQUATIONS OF LINES AND PLANES EQUATIONS OF LINES AND PLANES MATH 195, SECTION 59 (VIPUL NAIK) Corresponding mteril in the ook: Section 12.5. Wht students should definitely get: Prmetric eqution of line given in point-direction nd twopoint

More information

Utilization of Magnesium Hydroxide Produced by Magnesia Hydration as Fire Retardant for Nylon 6-6,6

Utilization of Magnesium Hydroxide Produced by Magnesia Hydration as Fire Retardant for Nylon 6-6,6 C O M U N I C A Ç Ã O Utiliztion of Mgnesium Hydroxide Produced y Mgnesi Hydrtion s Fire Retrdnt for Nylon 6-6,6 Sôni D.F. Roch Deprtmento de Engenhri Químic, UFMG Virgíni S.T. Ciminelli Deprtmento de

More information

Thermodynamic Database for Phase Diagrams in Micro-Soldering Alloys

Thermodynamic Database for Phase Diagrams in Micro-Soldering Alloys 1164 Journl of ELECTRONIC MATERIALS, Vol. 28, No. 11, 1999 Ohnum, Liu, Ohtni, Specil nd Issue Ishid Pper Thermodynmic Dtse for Phse Digrms in Micro-Soldering Alloys I. OHNUMA, X.J. LIU, H. OHTANI, nd K.

More information

Reasoning to Solve Equations and Inequalities

Reasoning to Solve Equations and Inequalities Lesson4 Resoning to Solve Equtions nd Inequlities In erlier work in this unit, you modeled situtions with severl vriles nd equtions. For exmple, suppose you were given usiness plns for concert showing

More information

TITLE THE PRINCIPLES OF COIN-TAP METHOD OF NON-DESTRUCTIVE TESTING

TITLE THE PRINCIPLES OF COIN-TAP METHOD OF NON-DESTRUCTIVE TESTING TITLE THE PRINCIPLES OF COIN-TAP METHOD OF NON-DESTRUCTIVE TESTING Sung Joon Kim*, Dong-Chul Che Kore Aerospce Reserch Institute, 45 Eoeun-Dong, Youseong-Gu, Dejeon, 35-333, Kore Phone : 82-42-86-231 FAX

More information

ANALYSIS OF THERMAL STRATIFICATION IN THE PRIMARY CIRCUIT WITH THE CFX CODE

ANALYSIS OF THERMAL STRATIFICATION IN THE PRIMARY CIRCUIT WITH THE CFX CODE ANALYSIS OF THERMAL STRATIFICATION IN THE PRIMARY CIRCUIT WITH THE CFX CODE Ildikó Boros, Dr. Attil Aszódi Budpest University of Technology nd Economics, Institute of Nucler Techniques Abstrct The therml

More information

Or more simply put, when adding or subtracting quantities, their uncertainties add.

Or more simply put, when adding or subtracting quantities, their uncertainties add. Propgtion of Uncertint through Mthemticl Opertions Since the untit of interest in n eperiment is rrel otined mesuring tht untit directl, we must understnd how error propgtes when mthemticl opertions re

More information

Module 2. Analysis of Statically Indeterminate Structures by the Matrix Force Method. Version 2 CE IIT, Kharagpur

Module 2. Analysis of Statically Indeterminate Structures by the Matrix Force Method. Version 2 CE IIT, Kharagpur Module Anlysis of Stticlly Indeterminte Structures by the Mtrix Force Method Version CE IIT, Khrgpur esson 9 The Force Method of Anlysis: Bems (Continued) Version CE IIT, Khrgpur Instructionl Objectives

More information

THE PARAMETERS OF TRAPS IN K-FELDSPARS AND THE TL BLEACHING EFFICIENCY

THE PARAMETERS OF TRAPS IN K-FELDSPARS AND THE TL BLEACHING EFFICIENCY GEOCHRONOMETRIA Vol. 2, pp 15-2, 21 Journl on Methods nd Applictions of Asolute Chronology THE PARAMETERS OF TRAPS IN K-FELDSPARS AND THE TL BLEACHING EFFICIENCY ALICJA CHRUŒCIÑSKA 1, HUBERT L. OCZKOWSKI

More information

Uplift Capacity of K-Series Open Web Steel Joist Seats. Florida, Gainesville, FL 32611; email: psgreen@ce.ufl.edu

Uplift Capacity of K-Series Open Web Steel Joist Seats. Florida, Gainesville, FL 32611; email: psgreen@ce.ufl.edu Uplift Cpcity of K-Series Open Web Steel Joist Sets Perry S. Green, Ph.D, M.ASCE 1 nd Thoms Sputo, Ph.D., P.E., M.ASCE 2 1 Assistnt Professor, Deprtment of Civil nd Costl Engineering, University of Florid,

More information

Experiment 6: Friction

Experiment 6: Friction Experiment 6: Friction In previous lbs we studied Newton s lws in n idel setting, tht is, one where friction nd ir resistnce were ignored. However, from our everydy experience with motion, we know tht

More information

improved (2, 3, 4, 5, 7, 8, 9, 10, 11). Some of the

improved (2, 3, 4, 5, 7, 8, 9, 10, 11). Some of the 8 FLORIDA STATE HORTICULTURAL SOCIETY, 963 EVALUATING SPRAY EQUIPMENT FOR FLORIDA CITRUS R. F. Brooks, W. L. Thompson nd P. T. Jutrs Florid Citrus Experiment Sttion Lke Alfred The first successful, lrge,

More information

Gravity and low pressure die casting of aluminium alloys: a technical and economical benchmark

Gravity and low pressure die casting of aluminium alloys: a technical and economical benchmark Grvity nd low pressure die csting of luminium lloys: technicl nd economicl enchmrk F. Bonollo, J. Urn, B. Bontto, M. Botter Among the innovtive nd conventionl foundry processes for Aluminium lloys, low

More information

Treatment Spring Late Summer Fall 0.10 5.56 3.85 0.61 6.97 3.01 1.91 3.01 2.13 2.99 5.33 2.50 1.06 3.53 6.10 Mean = 1.33 Mean = 4.88 Mean = 3.

Treatment Spring Late Summer Fall 0.10 5.56 3.85 0.61 6.97 3.01 1.91 3.01 2.13 2.99 5.33 2.50 1.06 3.53 6.10 Mean = 1.33 Mean = 4.88 Mean = 3. The nlysis of vrince (ANOVA) Although the t-test is one of the most commonly used sttisticl hypothesis tests, it hs limittions. The mjor limittion is tht the t-test cn be used to compre the mens of only

More information

Small Businesses Decisions to Offer Health Insurance to Employees

Small Businesses Decisions to Offer Health Insurance to Employees Smll Businesses Decisions to Offer Helth Insurnce to Employees Ctherine McLughlin nd Adm Swinurn, June 2014 Employer-sponsored helth insurnce (ESI) is the dominnt source of coverge for nonelderly dults

More information

The Effect of Crumb Rubber Modifier (CRM) on the Performance Properties of Rubberized Binders in HMA pavements

The Effect of Crumb Rubber Modifier (CRM) on the Performance Properties of Rubberized Binders in HMA pavements The Effect of Crum Ruer Modifier (CRM) on the Performnce Properties of Ruerized Binders in HMA pvements Soon-Je Lee* Ph.D. Grdute Student Deprtment of Civil Engineering Clemson University Clemson, SC 29634-0911

More information

Effect of viscosity on C sugar in Beet sugar factories

Effect of viscosity on C sugar in Beet sugar factories ANNUAL TRANSACTIONS OF THE NORDIC RHEOLOGY SOCIETY, VOL. 16, 2008 Effect of on C sugr in Beet sugr fctories Mohmmd Hojjtoleslmy 1, Rez Shokrni 2 nd Ahmd Krsi 3 1 Deprtment of food technology, College of

More information

Answer, Key Homework 10 David McIntyre 1

Answer, Key Homework 10 David McIntyre 1 Answer, Key Homework 10 Dvid McIntyre 1 This print-out should hve 22 questions, check tht it is complete. Multiple-choice questions my continue on the next column or pge: find ll choices efore mking your

More information

Factoring Trinomials of the Form. x 2 b x c. Example 1 Factoring Trinomials. The product of 4 and 2 is 8. The sum of 3 and 2 is 5.

Factoring Trinomials of the Form. x 2 b x c. Example 1 Factoring Trinomials. The product of 4 and 2 is 8. The sum of 3 and 2 is 5. Section P.6 Fctoring Trinomils 6 P.6 Fctoring Trinomils Wht you should lern: Fctor trinomils of the form 2 c Fctor trinomils of the form 2 c Fctor trinomils y grouping Fctor perfect squre trinomils Select

More information

Space Vector Pulse Width Modulation Based Induction Motor with V/F Control

Space Vector Pulse Width Modulation Based Induction Motor with V/F Control Interntionl Journl of Science nd Reserch (IJSR) Spce Vector Pulse Width Modultion Bsed Induction Motor with V/F Control Vikrmrjn Jmbulingm Electricl nd Electronics Engineering, VIT University, Indi Abstrct:

More information

2 DIODE CLIPPING and CLAMPING CIRCUITS

2 DIODE CLIPPING and CLAMPING CIRCUITS 2 DIODE CLIPPING nd CLAMPING CIRCUITS 2.1 Ojectives Understnding the operting principle of diode clipping circuit Understnding the operting principle of clmping circuit Understnding the wveform chnge of

More information

The Acoustic Design of Soundproofing Doors and Windows

The Acoustic Design of Soundproofing Doors and Windows 3 The Open Acoustics Journl, 1, 3, 3-37 The Acoustic Design of Soundproofing Doors nd Windows Open Access Nishimur Yuy,1, Nguyen Huy Qung, Nishimur Sohei 1, Nishimur Tsuyoshi 3 nd Yno Tkshi 1 Kummoto Ntionl

More information

Helicopter Theme and Variations

Helicopter Theme and Variations Helicopter Theme nd Vritions Or, Some Experimentl Designs Employing Pper Helicopters Some possible explntory vribles re: Who drops the helicopter The length of the rotor bldes The height from which the

More information

An Undergraduate Curriculum Evaluation with the Analytic Hierarchy Process

An Undergraduate Curriculum Evaluation with the Analytic Hierarchy Process An Undergrdute Curriculum Evlution with the Anlytic Hierrchy Process Les Frir Jessic O. Mtson Jck E. Mtson Deprtment of Industril Engineering P.O. Box 870288 University of Albm Tuscloos, AL. 35487 Abstrct

More information

COVER CROP VARIETY AND SEEDING RATE EFFECTS ON WINTER WEED SEED PRODUCTION

COVER CROP VARIETY AND SEEDING RATE EFFECTS ON WINTER WEED SEED PRODUCTION COVER CROP VARIETY AND SEEDING RATE EFFECTS ON WINTER WEED SEED PRODUCTION Nthn S. Boyd nd Eric B. Brennn, USDA-ARS, Orgnic Reserch Progrm, 1636 E. Alisl Street, Slins, CA 93905 Astrct Weed mngement is

More information

Bayesian Updating with Continuous Priors Class 13, 18.05, Spring 2014 Jeremy Orloff and Jonathan Bloom

Bayesian Updating with Continuous Priors Class 13, 18.05, Spring 2014 Jeremy Orloff and Jonathan Bloom Byesin Updting with Continuous Priors Clss 3, 8.05, Spring 04 Jeremy Orloff nd Jonthn Bloom Lerning Gols. Understnd prmeterized fmily of distriutions s representing continuous rnge of hypotheses for the

More information

Effect of Y Addition on Microstructure and Mechanical Properties of Friction Stir Welded ZK60 Alloy

Effect of Y Addition on Microstructure and Mechanical Properties of Friction Stir Welded ZK60 Alloy J. Mter. Sci. Technol., Vol.25 No.3, 2009 351 Effect of Y Addition on Microstructure nd Mechnicl Properties of Friction Stir Welded ZK60 Alloy G.M. Xie 1,2), Z.Y. M 2) nd L. Geng 1) 1) School of Mterils

More information

RTL Power Optimization with Gate-level Accuracy

RTL Power Optimization with Gate-level Accuracy RTL Power Optimiztion with Gte-level Accurcy Qi Wng Cdence Design Systems, Inc Sumit Roy Clypto Design Systems, Inc 555 River Oks Prkwy, Sn Jose 95125 2903 Bunker Hill Lne, Suite 208, SntClr 95054 qwng@cdence.com

More information

Your duty, however, does not require disclosure of matter:

Your duty, however, does not require disclosure of matter: Your Duty of Disclosure Before you enter into contrct of generl insurnce with n insurer, you hve duty, under the Insurnce Contrcts Act 1984 (Cth), to disclose to the insurer every mtter tht you know, or

More information

Rate and Activation Energy of the Iodination of Acetone

Rate and Activation Energy of the Iodination of Acetone nd Activtion Energ of the Iodintion of Acetone rl N. eer Dte of Eperiment: //00 Florence F. Ls (prtner) Abstrct: The rte, rte lw nd ctivtion energ of the iodintion of cetone re detered b observing the

More information

Fat-Soluble Vitamin and Micromineral Concentrations in Preruminant Dairy Calves Fed to Achieve Different Growth Rates

Fat-Soluble Vitamin and Micromineral Concentrations in Preruminant Dairy Calves Fed to Achieve Different Growth Rates Animl Industry Report AS 654 ASL R2298 2008 Ft-Solule Vitmin nd Microminerl Concentrtions in Preruminnt Diry Clves Fed to Achieve Different Growth Rtes Brin J. Nonnecke United Sttes Deprtment of Agriculture

More information

Introducing Kashef for Application Monitoring

Introducing Kashef for Application Monitoring WextWise 2010 Introducing Kshef for Appliction The Cse for Rel-time monitoring of dtcenter helth is criticl IT process serving vriety of needs. Avilbility requirements of 6 nd 7 nines of tody SOA oriented

More information

Politecnico di Torino. Porto Institutional Repository

Politecnico di Torino. Porto Institutional Repository Politecnico di Torino Porto Institutional Repository [Other] Advanced high-strength steels for car-body manufacturing Original Citation: D. Firrao, G. Scavino, P. Matteis, M. De Sanctis, R. Valentini,

More information

Two hours UNIVERSITY OF MANCHESTER SCHOOL OF COMPUTER SCIENCE. Date: Friday 16 th May 2008. Time: 14:00 16:00

Two hours UNIVERSITY OF MANCHESTER SCHOOL OF COMPUTER SCIENCE. Date: Friday 16 th May 2008. Time: 14:00 16:00 COMP20212 Two hours UNIVERSITY OF MANCHESTER SCHOOL OF COMPUTER SCIENCE Digitl Design Techniques Dte: Fridy 16 th My 2008 Time: 14:00 16:00 Plese nswer ny THREE Questions from the FOUR questions provided

More information

Rotating DC Motors Part II

Rotating DC Motors Part II Rotting Motors rt II II.1 Motor Equivlent Circuit The next step in our consiertion of motors is to evelop n equivlent circuit which cn be use to better unerstn motor opertion. The rmtures in rel motors

More information

Multiplication and Division - Left to Right. Addition and Subtraction - Left to Right.

Multiplication and Division - Left to Right. Addition and Subtraction - Left to Right. Order of Opertions r of Opertions Alger P lese Prenthesis - Do ll grouped opertions first. E cuse Eponents - Second M D er Multipliction nd Division - Left to Right. A unt S hniqu Addition nd Sutrction

More information

Economics Letters 65 (1999) 9 15. macroeconomists. a b, Ruth A. Judson, Ann L. Owen. Received 11 December 1998; accepted 12 May 1999

Economics Letters 65 (1999) 9 15. macroeconomists. a b, Ruth A. Judson, Ann L. Owen. Received 11 December 1998; accepted 12 May 1999 Economics Letters 65 (1999) 9 15 Estimting dynmic pnel dt models: guide for q mcroeconomists b, * Ruth A. Judson, Ann L. Owen Federl Reserve Bord of Governors, 0th & C Sts., N.W. Wshington, D.C. 0551,

More information

Understanding Basic Analog Ideal Op Amps

Understanding Basic Analog Ideal Op Amps Appliction Report SLAA068A - April 2000 Understnding Bsic Anlog Idel Op Amps Ron Mncini Mixed Signl Products ABSTRACT This ppliction report develops the equtions for the idel opertionl mplifier (op mp).

More information

Experimental Study of the Influence of Shot Peening on the Microstructure and Properties of Surface Layer of a TC21 Titanium Alloy

Experimental Study of the Influence of Shot Peening on the Microstructure and Properties of Surface Layer of a TC21 Titanium Alloy Atls Journl of Mterils Science - ISSN 233-6831. Pulished By Atls Pulishing, LP (www.tls-pulishing.org) Atls Journl of Mterils Science 1 (1): 17 23, 214 doi: 1.5147/jms.214.17 Experimentl Study of the Influence

More information

A.7.1 Trigonometric interpretation of dot product... 324. A.7.2 Geometric interpretation of dot product... 324

A.7.1 Trigonometric interpretation of dot product... 324. A.7.2 Geometric interpretation of dot product... 324 A P P E N D I X A Vectors CONTENTS A.1 Scling vector................................................ 321 A.2 Unit or Direction vectors...................................... 321 A.3 Vector ddition.................................................

More information

Project 6 Aircraft static stability and control

Project 6 Aircraft static stability and control Project 6 Aircrft sttic stbility nd control The min objective of the project No. 6 is to compute the chrcteristics of the ircrft sttic stbility nd control chrcteristics in the pitch nd roll chnnel. The

More information

Effect of microscopic damage events on static and ballistic impact strength of triaxial braid composites

Effect of microscopic damage events on static and ballistic impact strength of triaxial braid composites Astrct Sumitted to CompTest 2008 4th Interntionl Conference on Composites Testing nd Model Identifiction 20-22 Octoer, 2008 Dton, OH Effect of microscopic dmge events on sttic nd llistic impct strength

More information

P.3 Polynomials and Factoring. P.3 an 1. Polynomial STUDY TIP. Example 1 Writing Polynomials in Standard Form. What you should learn

P.3 Polynomials and Factoring. P.3 an 1. Polynomial STUDY TIP. Example 1 Writing Polynomials in Standard Form. What you should learn 33337_0P03.qp 2/27/06 24 9:3 AM Chpter P Pge 24 Prerequisites P.3 Polynomils nd Fctoring Wht you should lern Polynomils An lgeric epression is collection of vriles nd rel numers. The most common type of

More information

A Note on Complement of Trapezoidal Fuzzy Numbers Using the α-cut Method

A Note on Complement of Trapezoidal Fuzzy Numbers Using the α-cut Method Interntionl Journl of Applictions of Fuzzy Sets nd Artificil Intelligence ISSN - Vol. - A Note on Complement of Trpezoidl Fuzzy Numers Using the α-cut Method D. Stephen Dingr K. Jivgn PG nd Reserch Deprtment

More information

INVESTIGATION OF THE EXTINGUISHING FEATURES FOR LIQUID FUELS AND ORGANIC FLAMMABLE LIQUIDS ATOMIZED BY A WATER FLOW

INVESTIGATION OF THE EXTINGUISHING FEATURES FOR LIQUID FUELS AND ORGANIC FLAMMABLE LIQUIDS ATOMIZED BY A WATER FLOW EPJ Web of Conferences 110, 01083 (2016) DOI: 10.1051/ epjconf/ 201611001083 C Owned by the uthors, published by EDP Sciences, 2016 INVESTIGATION OF THE EXTINGUISHING FEATURES FOR LIQUID FUELS AND ORGANIC

More information

4. DC MOTORS. Understand the basic principles of operation of a DC motor. Understand the operation and basic characteristics of simple DC motors.

4. DC MOTORS. Understand the basic principles of operation of a DC motor. Understand the operation and basic characteristics of simple DC motors. 4. DC MOTORS Almost every mechnicl movement tht we see round us is ccomplished by n electric motor. Electric mchines re mens o converting energy. Motors tke electricl energy nd produce mechnicl energy.

More information

Correction methods for pulsed neutron source reactivity measurement in accelerator driven systems

Correction methods for pulsed neutron source reactivity measurement in accelerator driven systems NUKLEONIKA 2013;58(2):287 293 ORIGINAL PAPER Correction methods for pulsed neutron source rectivity mesurement in ccelertor driven systems Pweł Gjd, Jerzy Jnczyszyn, Włdysłw Pohorecki Astrct. Importnt

More information

CS99S Laboratory 2 Preparation Copyright W. J. Dally 2001 October 1, 2001

CS99S Laboratory 2 Preparation Copyright W. J. Dally 2001 October 1, 2001 CS99S Lortory 2 Preprtion Copyright W. J. Dlly 2 Octoer, 2 Ojectives:. Understnd the principle of sttic CMOS gte circuits 2. Build simple logic gtes from MOS trnsistors 3. Evlute these gtes to oserve logic

More information

AN ANALYTICAL HIERARCHY PROCESS METHODOLOGY TO EVALUATE IT SOLUTIONS FOR ORGANIZATIONS

AN ANALYTICAL HIERARCHY PROCESS METHODOLOGY TO EVALUATE IT SOLUTIONS FOR ORGANIZATIONS AN ANALYTICAL HIERARCHY PROCESS METHODOLOGY TO EVALUATE IT SOLUTIONS FOR ORGANIZATIONS Spiros Vsilkos (), Chrysostomos D. Stylios (),(b), John Groflkis (c) () Dept. of Telemtics Center, Computer Technology

More information

Small Business Networking

Small Business Networking Why network is n essentil productivity tool for ny smll business Effective technology is essentil for smll businesses looking to increse the productivity of their people nd business. Introducing technology

More information

Performance analysis model for big data applications in cloud computing

Performance analysis model for big data applications in cloud computing Butist Villlpndo et l. Journl of Cloud Computing: Advnces, Systems nd Applictions 2014, 3:19 RESEARCH Performnce nlysis model for big dt pplictions in cloud computing Luis Edurdo Butist Villlpndo 1,2,

More information

Study on enzyme-assisted aqueous extraction of oil from soybean

Study on enzyme-assisted aqueous extraction of oil from soybean 8 Journl Scientific & Industril Reserch J SCI IND RES VOL 69 NOVEMBER 2010 Vol. 69, November 2010, pp. 8-865 Study on enzyme-ssisted queous extrction oil from soyben Jun-Qing Qin*, De-Hui Qin, Xing-Mo

More information

10. Testing of Welded Joints

10. Testing of Welded Joints 1. Testing of Welded Joints S S S S S S S S S S 1. Testing of Welded Joints 126 d = specimen dimeter d 1 = hed dimeter depending on clmping device L C = test length = L + d/2 r = 2 mm r r L s L L c L t

More information

Project Recovery. . It Can Be Done

Project Recovery. . It Can Be Done Project Recovery. It Cn Be Done IPM Conference Wshington, D.C. Nov 4-7, 200 Wlt Lipke Oklhom City Air Logistics Center Tinker AFB, OK Overview Mngement Reserve Project Sttus Indictors Performnce Correction

More information

Regular Sets and Expressions

Regular Sets and Expressions Regulr Sets nd Expressions Finite utomt re importnt in science, mthemtics, nd engineering. Engineers like them ecuse they re super models for circuits (And, since the dvent of VLSI systems sometimes finite

More information

API X80 Grade Electric Resistance Welded Pipe with Excellent Low Temperature Toughness

API X80 Grade Electric Resistance Welded Pipe with Excellent Low Temperature Toughness API X80 Grade Electric Resistance Welded Pipe with Excellent Low Temperature Toughness JFE TECHNICAL REPORT No. 18 (Mar. 2013) NAKATA Hiroshi *1 KAMI Chikara *2 MATSUO Nobuyuki *3 Abstract: This paper

More information

Multi-Scale Modeling of Nano Scale Phenomenon using CUDA based HPC Setup

Multi-Scale Modeling of Nano Scale Phenomenon using CUDA based HPC Setup Multi-Scle Modeling of Nno Scle Phenomenon using CUDA bsed HPC Setup Rohit Pthk nd Stydhr Joshi Acropolis Institute of Technology & Reserch, Indore, Mdhy Prdesh, Indi Shri Vishnv Institute of Technology

More information

Reversing Medications That Cause Bleeding

Reversing Medications That Cause Bleeding Reversing Medictions Tht Cuse Bleeding Dine M. Birnbumer, M.D., FACEP Professor of Medicine University of Cliforni, Los Angeles Senior Fculty Deprtment of Emergency Medicine Hrbor-UCLA Medicl Center The

More information

Performance Monitoring Fundamentals: Demystifying Performance Assessment Techniques

Performance Monitoring Fundamentals: Demystifying Performance Assessment Techniques Performnce Monitoring Fundmentls: Demystifying Performnce Assessment Techniques Roert C. Rice, PhD Rchelle R. Jyringi Dougls J. Cooper, PhD Control Sttion, Inc. Deprtment of Chemicl Engineering Control

More information

FAULT TREES AND RELIABILITY BLOCK DIAGRAMS. Harry G. Kwatny. Department of Mechanical Engineering & Mechanics Drexel University

FAULT TREES AND RELIABILITY BLOCK DIAGRAMS. Harry G. Kwatny. Department of Mechanical Engineering & Mechanics Drexel University SYSTEM FAULT AND Hrry G. Kwtny Deprtment of Mechnicl Engineering & Mechnics Drexel University OUTLINE SYSTEM RBD Definition RBDs nd Fult Trees System Structure Structure Functions Pths nd Cutsets Reliility

More information

INITIATION OF THERAPY Patient-specific considerations for initiation of apixaban therapy include the following:

INITIATION OF THERAPY Patient-specific considerations for initiation of apixaban therapy include the following: UNC HEALTH CARE GUIDELINE Mngement of Apixn in Adults Apixn (Eliquis ) is n orl nticogulnt tht cts s fctor X inhiitor. It is pproved y the FDA for the prevention of stroke nd systemic emolism in ptients

More information

Pure C4. Revision Notes

Pure C4. Revision Notes Pure C4 Revision Notes Mrch 0 Contents Core 4 Alger Prtil frctions Coordinte Geometry 5 Prmetric equtions 5 Conversion from prmetric to Crtesin form 6 Are under curve given prmetriclly 7 Sequences nd

More information

Understanding Life Cycle Costs How a Northern Pump Saves You Money

Understanding Life Cycle Costs How a Northern Pump Saves You Money Understnding Life Cycle Costs How Nrn Pump Sves You Money Reference: Hydrulic Institute (www.s.g) Introduction Wht Life Cycle Cost (LCC) Clculting Totl LCC LCC Components Wht Life Cycle Cost Life Cycle

More information

THERMAL EXPANSION OF TUNGSTEN

THERMAL EXPANSION OF TUNGSTEN . THERMAL EXPANSION OF TUNGSTEN S515 By Peter Hidnert nd W. T. Sweeney ABSTRACT This pper gives the results of n investigtion on the therml expnsion of tungsten (99.98 per cent) over vrious temperture

More information

5.6 POSITIVE INTEGRAL EXPONENTS

5.6 POSITIVE INTEGRAL EXPONENTS 54 (5 ) Chpter 5 Polynoils nd Eponents 5.6 POSITIVE INTEGRAL EXPONENTS In this section The product rule for positive integrl eponents ws presented in Section 5., nd the quotient rule ws presented in Section

More information

Assuming all values are initially zero, what are the values of A and B after executing this Verilog code inside an always block? C=1; A <= C; B = C;

Assuming all values are initially zero, what are the values of A and B after executing this Verilog code inside an always block? C=1; A <= C; B = C; B-26 Appendix B The Bsics of Logic Design Check Yourself ALU n [Arthritic Logic Unit or (rre) Arithmetic Logic Unit] A rndom-numer genertor supplied s stndrd with ll computer systems Stn Kelly-Bootle,

More information

JaERM Software-as-a-Solution Package

JaERM Software-as-a-Solution Package JERM Softwre-s--Solution Pckge Enterprise Risk Mngement ( ERM ) Public listed compnies nd orgnistions providing finncil services re required by Monetry Authority of Singpore ( MAS ) nd/or Singpore Stock

More information

THE EFFECTS OF INCREASED PROTEIN INTAKE ON KIDNEY SIZE AND FUNCTION

THE EFFECTS OF INCREASED PROTEIN INTAKE ON KIDNEY SIZE AND FUNCTION The Journl of Experimentl iology 21, 281 29 (1998) Printed in Gret ritin The Compny of iologists Limited 1998 JE1492 281 THE EFFECTS OF INCRESED PROTEIN INTKE ON KIDNEY SIZE ND FUNCTION KIMERLY. HMMOND

More information

Stainless steel flat products. Prodotti piani in acciaio inossidabile

Stainless steel flat products. Prodotti piani in acciaio inossidabile St ai nl es ss t eel atpr oduc t s Moving ahead in the stainless sector. Within a strategy of consistent investments in its production chain, Marcegaglia has added the manufacturing of coils and sheets

More information

Vibrotumescent Liposuction of the Abdominal Wall

Vibrotumescent Liposuction of the Abdominal Wall Chpter 20 Virotumescent Liposuction of the Adominl Wll 20 Sid Mirrfti 20.1 Ptient Consulttion Liposuction is one of the most commonly performed procedures, ut the limittions nd dvntges of the proceduremusteexplinedtotheptient.alterntive

More information

Plotting and Graphing

Plotting and Graphing Plotting nd Grphing Much of the dt nd informtion used by engineers is presented in the form of grphs. The vlues to be plotted cn come from theoreticl or empiricl (observed) reltionships, or from mesured

More information

Kanthal Super Electric heating elements

Kanthal Super Electric heating elements Knthl Super Electric heting elements Products nd ccessories Knthl Super Electric heting elements Knthl is world-renowned brnd within the field of electric heting technology. The Knthl products offer possibilities

More information

SPARK QUENCHERS EFFECT OF SPARK QUENCHER

SPARK QUENCHERS EFFECT OF SPARK QUENCHER Sprk Quenchers re esily selectble electronic components designed to prevent or substntilly minimize the occurrence of rcing nd noise genertion in rely nd switch contcts. EFFECT OF SPARK QUENCHER Arc suppression

More information

Assessment of the structural integrity of cracked cylindrical geometries applying the EVTUBAG program

Assessment of the structural integrity of cracked cylindrical geometries applying the EVTUBAG program Rev. Téc. ng. Univ. Zuli. Vol. 32, Nº 3, 190-199, 2009 Assessment of the structurl integrity of crcked cylindricl geometries pplying the EVTUBAG progrm Luis Héctor Hernández Gómez 1, Guilllermo Urriolgoiti

More information

Small Business Networking

Small Business Networking Why network is n essentil productivity tool for ny smll business Effective technology is essentil for smll businesses looking to increse the productivity of their people nd business. Introducing technology

More information

Product catalogue. Steel in ingots

Product catalogue. Steel in ingots Prouct ctlogue Steel in ingots Grup lchemi Prouct ctlogue ut tory elonging to lchemi Cpitl Group is one of the Europen mjor proucers of top qulity lrge imeter semless steel pipes (rnge: from 219 mm to

More information

5 a LAN 6 a gateway 7 a modem

5 a LAN 6 a gateway 7 a modem STARTER With the help of this digrm, try to descrie the function of these components of typicl network system: 1 file server 2 ridge 3 router 4 ckone 5 LAN 6 gtewy 7 modem Another Novell LAN Router Internet

More information

Small Business Networking

Small Business Networking Why network is n essentil productivity tool for ny smll business Effective technology is essentil for smll businesses looking to increse the productivity of their people nd processes. Introducing technology

More information

Mateus et al. BMC Biology 2014, 12:97 http://www.biomedcentral.com/1741-7007/12/97

Mateus et al. BMC Biology 2014, 12:97 http://www.biomedcentral.com/1741-7007/12/97 Mteus et l. BMC Biology 2014, 12:97 http://www.iomedcentrl.com/1741-7007/12/97 RESEARCH ARTICLE Open Access Adptive developmentl plsticity: Comprtmentlized responses to environmentl cues nd to corresponding

More information

COMPLEX FRACTIONS. section. Simplifying Complex Fractions

COMPLEX FRACTIONS. section. Simplifying Complex Fractions 58 (6-6) Chpter 6 Rtionl Epressions undles tht they cn ttch while working together for 0 hours. 00 600 6 FIGURE FOR EXERCISE 9 95. Selling. George sells one gzine suscription every 0 inutes, wheres Theres

More information

1. In the Bohr model, compare the magnitudes of the electron s kinetic and potential energies in orbit. What does this imply?

1. In the Bohr model, compare the magnitudes of the electron s kinetic and potential energies in orbit. What does this imply? Assignment 3: Bohr s model nd lser fundmentls 1. In the Bohr model, compre the mgnitudes of the electron s kinetic nd potentil energies in orit. Wht does this imply? When n electron moves in n orit, the

More information

Square Roots Teacher Notes

Square Roots Teacher Notes Henri Picciotto Squre Roots Techer Notes This unit is intended to help students develop n understnding of squre roots from visul / geometric point of view, nd lso to develop their numer sense round this

More information

APPLICATIONS OF X-RAY MICRODIFFRACTION IN THE IMAGING INDUSTRY

APPLICATIONS OF X-RAY MICRODIFFRACTION IN THE IMAGING INDUSTRY 352 APPLICATIONS OF X-RAY MICRODIFFRACTION IN THE IMAGING INDUSTRY Thoms N. Blnton Estmn Kodk Compny, Reserch Lortories Foundtion Science Center, Rochester, New York 14650-2106, USA ABSTRACT Chrcteriztion

More information

Modular Generic Verification of LTL Properties for Aspects

Modular Generic Verification of LTL Properties for Aspects Modulr Generic Verifiction of LTL Properties for Aspects Mx Goldmn Shmuel Ktz Computer Science Deprtment Technion Isrel Institute of Technology {mgoldmn, ktz}@cs.technion.c.il ABSTRACT Aspects re seprte

More information

Geotechnical Stability Investigations on Mobile Construction Machines

Geotechnical Stability Investigations on Mobile Construction Machines Geotechnicl Stbility Investigtions on Mobile Construction Mchines Dipl.-Ing. Peter H. Beutinger Institute of Geotechnicl Engineering, University of Stuttgrt, Germny 1. Introduction Nowdys, there is hrdly

More information

Version 001 CIRCUITS holland (1290) 1

Version 001 CIRCUITS holland (1290) 1 Version CRCUTS hollnd (9) This print-out should hve questions Multiple-choice questions my continue on the next column or pge find ll choices efore nswering AP M 99 MC points The power dissipted in wire

More information

Homework #6 Chapter 7 Homework Acids and Bases

Homework #6 Chapter 7 Homework Acids and Bases Homework #6 Chpter 7 Homework Acids nd Bses 18. ) H O(l) H 3O (q) OH (q) H 3 O OH Or H O(l) H (q) OH (q) H OH ) HCN(q) H O(l) H 3O (q) CN (q) H 3 O HCN CN Or HCN(q) H (q) CN (q) H CN HCN c) NH 3(q) H O(l)

More information

Effects of Soil Conditions on Solar Pond Performance

Effects of Soil Conditions on Solar Pond Performance SERl/TP-253-257 UC Ctegory: 59c DE8496 Effects of Soil Conditions on Solr Pond Performnce Cecile Leboeuf Did H Johnson Jnury 984 To be presented t Americn Society of Mechnicl Engineers Solr Energy Diision

More information

Unleashing the Power of Cloud

Unleashing the Power of Cloud Unleshing the Power of Cloud A Joint White Pper by FusionLyer nd NetIQ Copyright 2015 FusionLyer, Inc. All rights reserved. No prt of this publiction my be reproduced, stored in retrievl system, or trnsmitted,

More information

Rotational Equilibrium: A Question of Balance

Rotational Equilibrium: A Question of Balance Prt of the IEEE Techer In-Service Progrm - Lesson Focus Demonstrte the concept of rottionl equilirium. Lesson Synopsis The Rottionl Equilirium ctivity encourges students to explore the sic concepts of

More information

Hillsborough Township Public Schools Mathematics Department Computer Programming 1

Hillsborough Township Public Schools Mathematics Department Computer Programming 1 Essentil Unit 1 Introduction to Progrmming Pcing: 15 dys Common Unit Test Wht re the ethicl implictions for ming in tody s world? There re ethicl responsibilities to consider when writing computer s. Citizenship,

More information

Metallographic Specimen Preparation for Electron Backscattered Diffraction

Metallographic Specimen Preparation for Electron Backscattered Diffraction Metllogrfi Metllogrphic Specimen Preprtion for Electron Bckscttered Diffrction G. F. Vnder Voort Electron ckscttered diffrction (EBSD) is performed with the scnning electron microscope (SEM) to provide

More information

Small Business Networking

Small Business Networking Why Network is n Essentil Productivity Tool for Any Smll Business TechAdvisory.org SME Reports sponsored by Effective technology is essentil for smll businesses looking to increse their productivity. Computer

More information

The International Association for the Properties of Water and Steam. Release on the Ionization Constant of H 2 O

The International Association for the Properties of Water and Steam. Release on the Ionization Constant of H 2 O The Interntionl Assocition for the Properties of Wter nd Stem Lucerne, Sitzerlnd August 7 Relese on the Ioniztion Constnt of H O 7 The Interntionl Assocition for the Properties of Wter nd Stem Publiction

More information

Repulsive Casimir Forces Produced in Rectangular Cavities: Possible Measurements and Applications

Repulsive Casimir Forces Produced in Rectangular Cavities: Possible Measurements and Applications 68 Brzilin Journl of Physics, vol. 36, no. B, Mrch, 006 Repulsive simir Forces Produced in Rectngulr vities: Possible Mesurements nd Applictions A. Gusso Deprtmento de Físic, Universidde Federl do Prná,.P.

More information

TRENDS IN THE PERIODIC TABLE

TRENDS IN THE PERIODIC TABLE MODULE WORKSHEET0 TRENDS IN THE PERIODIC TABLE Syllus reference.. Complete the following with word or phrse to check your understnding. In the nineteenth century, s more elements ecme known, chemists serched

More information