Genetic algorithm for planning cable telecommunication networks.docx
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Genetic algorithm for planning cable telecommunication networks.docx
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Geneticalgorithmforplanningcabletelecommunicationnetworks
105
Anewmethodforrobustnessinrollinghorizonplanning OriginalResearchArticle
InternationalJournalofProductionEconomics,InPress,AcceptedManuscript,Availableonline22February2011
D.Bredström,P.Flisberg,M.Rönnqvist
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AbstractAbstract
Abstract
Inthispaper,wedescribeanewmethodtosolveLinearProgramming(LP)problemswhichhaveuncertainright-hand-sides.Weapplythistoplanningproblemswherearollingplanninghorizonisusedandwhererobustnessisimportant.Inparticular,weareinterestedinapplicationswheretheuncertaintyhasanunderlyingstructureandcanbedescribedwithpracticalconstraints.Themethodproposedisbasedonadecompositionschemewhereweiterativelysolveanupperlevelproblemforthefirsttimeperiodinwhichtheparametersareassumedtobeknown.Thelowerlevelproblemusestheupperlevelsolutionandcomputesaworstcasescenarioforananticipationperiodthathasuncertainparameters.Informationabouthowtheworstcasescenarioisaffectedbytheupperleveldecisionsisgivenbackasavalidinequality.Thisprocessisrepeateduntiltheupperlevelsolutionsatisfiesthelastgeneratedvalidinequality.Themodelsusedinthesolutionprocesscanbekeptassmallasthecorrespondingdeterministicmodelwhichhasnouncertainties.Wetesttheproposedmethodonanintegratedproduction,transportationandinventoryplanningproblem.Wemakeuseofsimulationstocompareourapproachwithatraditionaldeterministicapproachwithsafetystocks.Theresultshowsthattheproposedmethodworkswellandperformsbetterthanthedeterministicapproach.
106
TheintegratedaccessinthepreparationandplanningoftheteachingprocessattheprimaryschoolsinrepublicofMacedonia OriginalResearchArticle
Procedia-SocialandBehavioralSciences,Volume2,Issue2,2010,Pages5059-5065
SnezanaMirascieva
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AbstractAbstract|ReferencesReferences
Abstract
ThispaperfocusesonsomeofthenewtrendsinplanningtheeducationalcontentsinteachingforchildrenfromearlyschoolageattheprimaryschoolintheRepublicofMacedonia.Namely,theplanningofintegratededucationisaninnovativeapproachtoeducationalpracticethatisofconcernforthispaper.Startingfromthefactthatekeyelementinthestudyistheproblemofintegratedplanningthisworkconsistsoftwoparts.Inthefirstpartwewilltrytogiveatheoreticalviewofthelevelsofintegratedplanningofeducationalwork.Inthesecondpartthroughsomemodelsoftheintegratedplanningwewillintroduceitsapplicativeside.
107
Broadbandradioaccesstohomesandbusinesses:
MMDSandLMDS OriginalResearchArticle
ComputerNetworks,Volume31,Issue4,25February1999,Pages379-393
HikmetSari
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AbstractAbstract|Figures/TablesFigures/Tables|ReferencesReferences
Abstract
Thispapergivesanoverviewofdigitalmicrowavemultipointdistributionsystems(MMDS)andlocalmultipointdistributionsystems(LMDS)originallydevelopedfordigitalTVbroadcastingandlaterextendedtoofferinteractiveservicesforhomesandbusinesses.WefirstdescribethespecificationworkcarriedoutbytheDigitalVideoBroadcasting(DVB)projectandtheDigitalAudioVisualCouncil(DAVIC)whichformsthetechnicalbasisofthesesystems.Next,afterpresentinginitialfrequencyallocationsparticularlyinEuropeandNorthAmerica,wediscussthepotentialofMMDSandLMDStoofferbroadbandservicestohomesaswellastosmall-andmedium-sizebusinesses.Wealsodiscussthemajortechnicalissuesrelatedtothedesignofthesesystems,frequencyplanningandreusepatterns,aswellasfuturetechnicalevolutionstomakethemmoreefficientintermsofperformance,capacity,andtheserviceoffered.Thisdiscussionincludestheuseofhigher-levelmodulations,multipleaccesstechniquessuchascode-divisionmultipleaccess(CDMA)andorthogonalfrequency-divisionmultipleaccess(OFDMA),andofadaptivearraysforelectronicbeamforming.
ArticleOutline
1.Introduction
2.TheDVBspecifications
2.1.SatelliteandLMDS
2.2.CableandMMDS
3.DAVICspecifications
3.1.Downstreamchannel
3.2.Thereturnchannel
3.3.MACprotocol
4.Frequencyallocation
5.Broadbandwirelessaccess
6.Sometechnicalissuesandperspectives
6.1.Receiverdesign
6.2.Frequencyplanning
6.3.Futureevolutions
6.3.1.Higher-levelmodulations
6.3.2.Multipleaccesstechniques
6.4.Smartantennas
7.Conclusions
References
Vitae
108
UrbansoilcharacteristicsandlimitationsforlandscapeplantinginHongKong OriginalResearchArticle
LandscapeandUrbanPlanning,Volume40,Issue4,1May1998,Pages235-249
C.Y.Jim
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AbstractAbstract|Figures/TablesFigures/Tables|ReferencesReferences
Abstract
Soilsinurbanareashavenotreceivedadequateattentioninrelationtolandscapeplanting.RecenturbantreesurveysinHongKongidentifiedmanyarboriculturalproblemsrelatedtostressfulhabitatconditionsincludingedaphicones.Soilconstraintsinthecrowdedcityareacuteandyetrelevantdataarelacking.Thisprojectevaluatedinthefieldandlaboratory100soilsamplesobtainedfromsitesofvariednaturalanddisturbancehistoryatdifficultroadsidetree-pitsitesinurbanHongKong.Anextensiverangeofphysicalandchemicalpropertieswereassessedtoestablishbaselineinformationonsoillimitationstoamenity-vegetationgrowth.Mostsoilshavelostnaturalsoilhorizonswithmorphologicalfeaturesoffillmaterialssuchaspoorstructureandartificiallayering.Theyareexcessivelystonyandcoarse-textured,withabundanceofbuildingrubbleandotherforeignsubstances.Theextensivesoilcompaction,associatedwithstructuraldegradationandlossofporosity,isinimicaltoaeration,drainage,storageofplant-availablemoisture,androotgrowth.ReleaseofcarbonatefromthecalcareousconstructionwastehasinducedalkalinepH,withconsequencesonmicronutrientandphosphorusdeficiency.Organicmattercontents,andtherelatedsupplyofessentialnitrogenandphosphorus,areallmeager.Thecapacitytoholdnutrientbasesandtheamountheldinavailableformsarebothinadequateforvigorousplantperformance.Therearesignsofpollutionbyheavymetals,especiallylead,whicharederivedfromair-bornesourcesrelatedtovehiculartraffic.Theresultshelptoascertaintheneedforsoiltestsinlandscapingendeavors,toreinforceaweaklinkinlandscapingprograms,toestablishapackageofrecommendationstoimproveurbansoilmanagement,toenhancethecost-effectivenessofgreeningprograms,andtoaugmenturban-treeperformancesoastoreducerecurrentmanagementliabilityandburden.
ArticleOutline
1.Introduction
2.Studyareaandmethods
3.Physicalproperties
3.1.Fieldmorphology
3.2.Particle-sizedistributionandtexture
3.3.Consistence
3.4.Structureandaggregatestability
3.5.Soilcompactionandrelatedproblems
4.Chemicalproperties
4.1.Soilreaction
4.2.Organicmatterandrelatednutrients
4.3.Cationexchangecharacteristics
4.4.Soilpollution
5.Managementrecommendations
6.Implicationsandconclusion
Acknowledgements
References
109
TheFutureofManagement:
WhereisGaryHamelLeadingUs?
OriginalResearchArticle
LongRangePlanning,Volume41,Issue5,October2008,Pages469-482
RobertM.Grant
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AbstractAbstract|ReferencesReferences
Inhisnewbook,TheFutureofManagement,GaryHamelisonceagainincitingmanagerstorevolt.Hisindictmentofcurrentmanagementpracticesrestsontwopropositions.First,thatmostmanagementsystemsandprinciplesarefoundedonahopelesslyobsoletemanagementparadigm.Second,thatmanagementinnovationrepresentstheultimatesourceofcompetitiveadvantage.Despitehisinfectiousenthusiasmfordiscontinuouschange,Hamel'sthesisisfarfromconvincing.Whileheissurelyrightthatchangesinthebusinessenvironmentandnewtechnologieswilldrivefar-reachingchangesinstructures,systemsandleadershipstyles,itisnotevidentthattheseadaptationsrequireanewmanagementparadigm.Norisitobviousthat21stcenturymanagementwillbebasedupondistributedinnovation,participativedecisionmakingandmarket-basedmechanisms.Thisarticlearguesthatthefutureofmanagementismorelikelytoinvolvetheextensionofexistingmanagementprinciplesandpracticestoembracehigherlevelsofcomplexity–particularlymultidimensionalintegration–accompaniedbygreaterrelianceuponinformalstructuresandsystems,includingself-organization.Thesechangesimplydifferentleadershipstylesandapproachestodecisionmaking,butnot–asHameladvocates–thewholesaledismantlingofexistingmanagementpracticesortheprinciplesthatunderpinthem.
ArticleOutline
Introduction
GaryHamel'scontributiontomanagementthought
Hamel'schallenge:
reinventingmanagement
Thecaseforanewmanagementparadigm
Thecaseformanagementinnovation
Whatdoesthefutureofmanagementlooklike?
Istheexistingmanagementparadigmreallybroken?
Theconceptualfoundationsofcurrentmanagementpractices
Canweobservenovelmanagementform
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