简介:Suppose2bagsofpeanutscost59■.Howmuchwill8bagscost?Youcananswerthisquestionbysolvingthefollowingproportion.
简介:The20thcenturyisacenturyinwhichhumanmaterialcivilizationandmedicinedevelopedthemostrapidly,manycausesofdiseasesunknownbeforewerefoundmolecularly,manydiseasesorterminaldiseasesuncurablebeforewerecuredwithnewtherapeuticmethods,manyfatalcontagiousdiseasesthathadcausedcorpsoverthewildernesswerecontrolledeffectively,cathetertechniquesandoperationscouldbeusedanywhereinthehumanbodysolongastheywereneeded,andnewdiagnosticandtherapeutictechniquesemergedoneafteranother;medicalprogressmadeanever-lastingcontributiontohumanhealth.
简介:IntroductionWritingisoneofthemostdifficulttasksforlanguagelearners.ItisverymuchthecaseinlearningEnglish.ManystudentswhohavebeenlearningEnglishformanyyearsareverypoorinwritingatthesentencelevel.Someofthecompositionsareevennotrevisable,becausethesentenceswrittendonotmakeanysense.Ontheotherhand,fewstudentscanwritewellinEnglish.Why?Asurveyonstudents’studyhabitshowsthathabitsoflearningreallymakeadifferenceinstudents’writingproficiency.ThosewhocanwriteusinggoodEnglishusuallyhavegoodstudyhabits,andgoodreadinghabitsinparticular.Theypaymuchmoreattentiontoideaswhilereading.
简介:TheMagazineForThinkingPeopleUNPRECEDENTEDDazzlingdesign…vitalinformation…magnificentlyillustrated…astorehouseofinformationone...
简介:Ifyouarelikemostpeople.yourintelligencevariesfromseasontoseason.Youareprobablyalotsharperinthespringthanyouareatanyothertimeofyear.Anotedscientist,EllsworthHuntington(1876-1947),concludedfromothermen’sworkandhisownamongpeoplesindifferentclimatesthatclimateandtemperaturehaveadefiniteeffectonourmentalabilities.
简介:you should think in more English when you're listening to speaking reading and writing English.,reading and writing English.Gradually you'll be able to think in English.,Write in English.Translation is not stressed while writing.In a word
简介:Fromaneconomicpointofview,theindustrialecon-omyisefficienttoovercomesituationsofascarcityofgoods.Fromatechnologicalpointofview,theresourceefficiencyofthemanufacturingprocessesoftheindustrialeconomyhasbeenper-manentlyimprovedduringthelast200years.Inaddition,cleanerprocesseshavebeendeveloped.However,fromanecologicpointofview,anincreasingworldpopulationwithincreasingconsump-tionhasproduceda'globalfootprint'whichapproachesthecar-ryingcapacityoftheplanet.Acirculareconomyanditshigh-valuespin-offs-alakeeconomyandaperformanceorfunctionalserviceeconomy-canfulfilcustomers'needswithconsiderablylessresourceconsump-tion,lessenvironmentalimpairmentinproductionandconsidera-blylessend-of-lifeproductwaste,especiallyinsituationsofaf-fluence,whenaconsiderablestockofphysicalgoodsandinfra-structuresexists.Also,insituationsofascarcityofnaturalresources,bothen-ergyandmaterials,oftencharacterisedbyrapidlyrisingresourceprices,theeconomicactorsofacirculareconomyhaveahighcompetitiveadvantageovertheactorsoftheindustrialeconomy,duetomuchlowerprocurementcostsformaterialsandenergy.Fromasocialpointofview,acirculareconomyincreasesthenumberofskilledjobsinregionalenterprises.However,theshiftfromalinearmanufacturingeconomytoacircularorserviceeconomymeansachangeineconomicthinking,fromflow(throughput)managementtostock(asset)management:inamanufacturingeconomywithlargelyunsaturatedmarkets,totalwealthincreasesthroughaccumulationasresourcethrough-put(flow)istransformedintoahigherstockofgoodsofbetterquality(butinamanufacturingeconomywithlargelysaturatedmarkets,wealthrepresentedbythestockofgoodswillnolongerincrease);inacircularorserviceeconomy,totalwealthincreasesthroughasmartmanagementofexistingphysicalassets(stock)thatareadaptedtochangesinbothtechnology
简介:Overthepastthousandsofyears,humansocietyhasexperiencedevolutionfromtheprimitivecivilization,theagriculturalcivilization,theindustrialcivilizationandtotheecologicalcivilization,whichisahistoryfromlow-leveltoadvanceddevelopment.Thecoreoftheecologicalcivilizationis"respectingnature,complyingwithnatureandprotectingnature",whichisessentialtoharmoniousco-existencebetweenmanandnature.Thisharmoniousco-existencerequiresconstantlyimprovingsystemandmechanismforthedevelopmentofnationalspace,naturalresourceconservationandutilization,andecologicalenvironmentprotection,torealizethewin-winofresourcedevelopmentandenvironmentalprotection.Itisathousand-yearplafftoachieveecologicalcivilizationbasedonunifiedmanagementofnaturalresources.
简介:Intermsofenergyuseandcarbonfootprint,itistheprimaryprocessesofironmakingandsteelmakingthatcommandmostattentioninourindustry.Therollingmills,althoughenergy-intensivebycomparisonwithmostindustrialfinishingoperations,areoftenoverlookedwhenasteelcompanyconsidersitsenvironmentalresponsibilitiesanditsenergy-savingopportunities.Thehighgearingofenergyconsumptionoftheprimaryprocessesoverthefinishingprocesseshasanimportantconsequence,however.Thekeytogreenrollingisasmuchaboutyield(andavoidingtheremeltingofscrap)asitisaboutdirectenergyuse.Thispaperusesaprojectcasestudy,thedesignandcommissioningoftheEndlessStripProcessing(ESP)plantofArvediinItalytoillustratehowmodernrollingmillsarecontributingtoagreenersteelindustry.Therelevanttechnicalfeaturesincludetheenergysavingsimplicitinnear-netshapecastingandindirectrolling,withoutintermediatereheating,advancesindriveandpowerconversiontechnologiesandtheaforementionedconceptofenergysavingthroughyieldmaximisation.Somenotableco-operativeeffortstowardsgreenerrollingarealsoexplained,includinguniversitycollaborationsandinparticulartheWellMet2050projectattheUniversityofCambridge.Inconclusion,thegreencredentialsofsteelusageingeneralindustryareconsideredandkeymessagesfortheengineeringcommunityaresought.
简介:SinceitcametopowerintheelectionofNovember2002andespeciallysinceitwonre-electionin2007,theJusticeandDevelopmentPartyofTurkey(AKP)hasprogressivelydevelopednewdiplomaticconcepts,thinkingandprinciplesinaccordancewiththedomesticdevelopmentrequirementsandtheevolvingworldsituationinthe21stcentury.Intheirview,countriesintheworldarebeingconfrontedwithanewstrategic