0000000000623772

AUTHOR

Chen Wu

showing 5 related works from this author

Efficient FDTD analysis of discontinuities in a square coaxial waveguide

1996

Engineeringbusiness.industryAcousticsFinite-difference time-domain methodElectronic engineeringCoaxial waveguidesElectrical and Electronic EngineeringClassification of discontinuitiesCondensed Matter PhysicsbusinessAtomic and Molecular Physics and OpticsSquare (algebra)Electronic Optical and Magnetic MaterialsMicrowave and Optical Technology Letters
researchProduct

A circular mesh scheme for the non-orthogonal finite difference time domain method

2002

Beam forming networks (BFN) are an important component of a complex satellite antenna system because they are used to provide accurate amplitude and phase excitation to the elements of the feed network. The need for handling high power and the need for a high degree of integrability, often leads one to choose square coaxial metal lines for constructing BFNs. BFNs usually require variable power dividers such as the rat-race (or ring) couplers with constant or variable divider ratios in order to deliver a prescribed amount of power to a certain element of an antenna array to steer the beam in a desired direction. However, modeling of such circular structures in square coaxial form is not an e…

Antenna arrayEngineeringbusiness.industryMesh generationNumerical analysisFinite difference methodFinite-difference time-domain methodElectronic engineeringCoaxialbusinessTopologySquare (algebra)Power (physics)IEEE Antennas and Propagation Society International Symposium. 1995 Digest
researchProduct

Combination of finite impulse response neural network technique with FDTD method for simulation of electromagnetic problems

1996

The finite difference time domain (FDTD) method requires long computation times for simulating resonant or high-Q structures. The authors incorporate the finite impulse response neural network technique as a predictor in order to save time in FDTD simulations. The applicability of the technique is demonstrated by carrying out an analysis of a waveguide filter.

Waveguide filterArtificial neural networkFinite impulse responseComputer scienceElectronic engineeringFinite-difference time-domain methodPhysics::OpticsElectrical and Electronic EngineeringAlgorithmElectronics Letters
researchProduct

Analysis of Heritability and Shared Heritability Based on Genome-Wide Association Studies for Thirteen Cancer Types

2015

BACKGROUND: Studies of related individuals have consistently demonstrated notable familial aggregation of cancer. We aim to estimate the heritability and genetic correlation attributable to the additive effects of common single-nucleotide polymorphisms (SNPs) for cancer at 13 anatomical sites.METHODS: Between 2007 and 2014, the US National Cancer Institute has generated data from genome-wide association studies (GWAS) for 49 492 cancer case patients and 34 131 control patients. We apply novel mixed model methodology (GCTA) to this GWAS data to estimate the heritability of individual cancers, as well as the proportion of heritability attributable to cigarette smoking in smoking-related cance…

MaleCancer ResearchLung NeoplasmsLymphomaGenome-wide association studyPolymorphism (computer science)NeoplasmsMedicineChronicGeneticsOsteosarcomaOncology And CarcinogenesisLeukemiaSmokingFamily aggregationSingle NucleotideMiddle AgedFamilial riskDiffuseKidney NeoplasmsLymphocyticOncologyAdult; Aged; Asian Continental Ancestry Group; Bone Neoplasms; European Continental Ancestry Group; Female; Humans; Kidney Neoplasms; Leukemia Lymphocytic Chronic B-Cell; Lung Neoplasms; Lymphoma Large B-Cell Diffuse; Male; Middle Aged; Neoplasms; Osteosarcoma; Polymorphism Single Nucleotide; Smoking; Testicular Neoplasms; Tissue Array Analysis; Urinary Bladder Neoplasms; Genetic Predisposition to Disease; Genome-Wide Association StudyFemaleLymphoma Large B-Cell DiffuseAdultAsian Continental Ancestry GroupEuropean Continental Ancestry Group/Bone NeoplasmsPolymorphism Single NucleotideGenetic correlationTesticular NeoplasmsLarge B-CellHumansGenetic Predisposition to DiseaseOncology & CarcinogenesisPolymorphismAgedbusiness.industryExtramuralB-CellCancerHeritabilityGenome-wide association studies for thirteen cancer typesmedicine.diseaseLeukemia Lymphocytic Chronic B-CellUrinary Bladder NeoplasmsTissue Array AnalysisbusinessGenome-Wide Association StudyJournal of the National Cancer Institute
researchProduct

FDTD signal extrapolation using a finite impulse response neural network model

1999

Waveguide filterFinite impulse responseComputer scienceAcousticsExtrapolationCondensed Matter PhysicsSignalAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsElectronic engineeringElectrical and Electronic EngineeringInfinite impulse responseDigital filterLinear filterImpulse responseMicrowave and Optical Technology Letters
researchProduct