Genetic algorithm for planning cable telecommunication networks.docx

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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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