00817nam0-22003011i-450-99000088308040332120001010000088308FED01000088308(Aleph)000088308FED0100008830820001010d--------km-y0itay50------baitay-------001yyMathematical Theory of Elementary ParticlesMassachussettsM.I.T. press1966.p.188ill.cm 24Materie varieGoodman,Roe43204Segnal,IrvingITUNINARICAUNIMARCBK99000088308040332103 MV.0,101862IINTCIINTCMathematical Theory of Elementary Particles354507UNINAING0102559nam 2200421z- 450 991034596370332120210211(CKB)4920000000094077(oapen)https://directory.doabooks.org/handle/20.500.12854/49953(oapen)doab49953(EXLCZ)99492000000009407720202102d2018 |y 0engurmn|---annantxtrdacontentcrdamediacrrdacarrierImaging in Acute Stroke - New Options and State of the ArtFrontiers Media SA20181 online resource (65 p.)Frontiers Research Topics9782889455348 2889455343 One in six suffers a stroke during their lifetime and stroke remains the major cause of new onset disability in adulthood. The worldwide burden of stroke is increasing due to an ageing population, however, globally haft of stroke victims are young. Stroke is the clinical diagnosis of an acute vascular incident and covers a multitude of pathophysiological causes. The clinician needs imaging to make decisions on acute treatment as well as to plan a secondary prevention strategy: a non-contrast CT and a Duplex of the carotids followed by an aspirin as a one size fits all strategy does not always provide sufficient support for those decisions. Presently, fast, generally available, and non-invasive imaging provides new possibilities of establishing a cause of stroke, provide specific information on the brain parenchyma - including possibly salvageable tissue and micro-bleeds - as well as allowing for more specific prognostication in acute stroke. This eBook covers both ischemic and haemorrhagic stroke and includes hot topics such as micro-bleeds, salvageable tissue and spot-sign, clinically challenging issues including movement artefacts in MRI as well as an overview of present options including pragmatic and feasible suggestions for an approach to state of the art acute imaging.Medicinebicsscacute strokecerebral amyloid angiopathyhemorrhagic strokeintracerebral hemorrageischemic strokespot-signMedicineChristensen Anders Foghauth1782238Christensen Hanne1950-authBOOK9910345963703321Imaging in Acute Stroke - New Options and State of the Art4308330UNINA03179nam 2200781z- 450 991055747830332120210501(CKB)5400000000043014(oapen)https://directory.doabooks.org/handle/20.500.12854/69155(oapen)doab69155(EXLCZ)99540000000004301420202105d2020 |y 0engurmn|---annantxtrdacontentcrdamediacrrdacarrierAdvances in High-Efficiency LLC Resonant ConvertersBasel, SwitzerlandMDPI - Multidisciplinary Digital Publishing Institute20201 online resource (170 p.)3-03928-386-3 3-03928-387-1 This book covers several research items related to LLC resonant converters, which were published in a Special Issue of Energies on the subject area of "Advances in High-Efficiency LLC Resonant converter". It focuses on emerging power electronic topologies related to the LLC resonant converter, and its design methodology and control algorithms. Topics of interest include LLC resonant topologies, resonant tank design methodology for high efficiency, power loss analysis in LLC resonant converters, high-frequency magnetics for resonant converters, wide band-gap devices applied to LLC resonant converter, and advanced control algorithm for LLC resonant converter.History of engineering and technologybicsscadjustable leakage inductanceaircraft power conversionasymmetric pulse width modulationasymmetric pulse width modulation (APWM)battery chargingbidirectional power conversioncenter-tapped transformercontrolcurrent mode controldual output converterDuty ControlExtended Describing Functionflux walkingflux-balance control loophigh efficiencyhigh switching frequencyintegrated transformerisolation dc-dc converterLED driverLLC converterLLC ConverterLLC resonant converterLLC resonant convertersmagnetizing current estimationpower converterpulse frequency modulation (PFM)PV micro-inverterresonant converterseries-connected devicesSmall Signal Modelingsoft-switching convertersolid-state-transformer (SST)transfer functiontransformer lossvoltage controlzero voltage switchingZVS auxiliary circuitHistory of engineering and technologyJung Jeehoonedt1285493Jung JeehoonothBOOK9910557478303321Advances in High-Efficiency LLC Resonant Converters3019603UNINA