This paper introduces the process for creating Sydney York Morphological and Acoustic Recordings of Ears (SYMARE) database. The SYMARE database supports research exploring relationship between morphology human outer ears their acoustic filtering properties-a that is viewed by many as holding key to spatial hearing future 3D personal audio. comprised acoustically measured head-related impulse responses 61 listeners (48 male/13 female), multiple high-resolution surface mesh models (upper...

Abstract The intent of this paper is to encourage improved numerical implementation land models. Our contributions in are two-fold. First, we present a unified framework formulate and implement model equations. We separate the representation physical processes from their solution, enabling use established robust methods solve Second, introduce set synthetic test cases (the laugh tests) evaluate include storage transmission water soils, lateral sub-surface flow, coupled hydrological...

This paper describes the generation of a morphable model for external ear shapes. The aim is to characterize an shape using only few parameters in order assist study morphoacoustics. derived from statistical analysis population 58 ears SYMARE database. It based upon framework large deformation diffeomorphic metric mapping (LDDMM) and vector space that constructed over initial momentums describing transformations. To develop LDDMM framework, are analyzed kernel principal component analysis....

The ability to track tumour motion without implanted markers on a standard linear accelerator (linac) could enable wide access real-time adaptive radiotherapy for cancer patients. We previously have retrospectively validated method 3D markerless target tracking using intra-fractional kilovoltage (kV) projections acquired linac. This paper presents the first prospective implementation of lung linac and its quality assurance (QA) procedure. workflow algorithm developed position during...

In this article, an inverse problem of determining unknown time-dependent source term a parabolic equation is considered. We change the to Volterra integral convolution-type. By using Sinc-collocation method, resulting replaced by system linear algebraic equations. The convergence analysis included, and it shown that error in approximate solution bounded infinity norm condition number coefficient matrix multiplied factor decays exponentially with size system. Some examples are given...

This paper describes how Large Deformation Diffeomorphic Metric Mapping (LDDMM) can be coupled with a Fast Multipole (FM) Boundary Element Method (BEM) to investigate the relationship between morphological changes in head, torso, and outer ears their acoustic filtering (described by Head Related Transfer Functions, HRTFs). The LDDMM technique provides ability study implement ear, head torso shapes. FM-BEM numerical simulations of properties an individual's ears. first application listener's...

This paper describes a method to establish an average human ear shape across population of ears by sequentially applying the Large Deformation Diffeomorphic Metric Mapping (LDDMM) framework at successively smaller physical scales. Determining such shape, also referred here as template ear, is essential step in studying statistics shapes because it allows variations be studied relative common shape. Our interest stems from our desire understand relationship between morphology and head-related...

This paper introduces the process for creating Sydney York Morphological and Acoustic Recordings of Ears (SYMARE) database. The SYMARE database supports research exploring relationship between morphology human outer ears their acoustic filtering properties - a that is viewed by many as holding key to spatial hearing future 3D personal audio. comprised acoustically measured head-related impulse responses 60 listeners, multiple high-resolution surface mesh models (upper torso, head ears) these...

This paper presents the theory, design and implementation of a real time virtual instrument to measure power quality indices such as factor, voltage harmonic distortion current given by IEEE standard. Windowing techniques offer an adjustable mechanism detect low or high harmonics they have different leakage characteristics. Cross spectral density is simple tool for finding phase angle differences among phases. The presented in this document integrates digital signal processing (DSP) methods...

This paper provides some considerations regarding using individualized head-related transfer functions for rendering binaural spatial audio over headphones. It briefly considers the degree of benefit that individualization may provide. then examines variation existing within ear morphology across listeners Sydney-York Morphological and Recording Ears (SYMARE) database kernel principal component analysis large deformation diffeomorphic metric mapping framework. The in directivity patterns...

Abstract Numerical simulation of land models without error control can be highly inaccurate. We present the incorporation Suite Nonlinear and Differential‐Algebraic Equation Solvers (SUNDIALS) package to solve equations that simulate thermodynamics hydrologic processes in Structure for Unifying Multiple Modeling Alternatives (SUMMA) model. The algorithmic features SUNDIALS, such as estimation adaptive order step‐size control, result a SUMMA‐SUNDIALS model delivers substantially improved...

Introduction Plant protection products (PPPs) such as pesticides and herbicides are experiencing increased use worldwide. In the context of PPP authorization registration, water exposure assessments (drinking aquatic exposure) numerical modeling to simulate relevant hydrological processes pathways. A common practice for estimating leaching groundwater, loading onto surface via tile drainage, or transport runoff utilizes multiple one-dimensional models, each representing a separate pathway....

This paper presents the theory, design and implementation of a virtual instrument based on new method to measure power quality indices such as current harmonic distortion, voltage distortion factor given by IEEE standard. A modern spectral estimation technique (ESPRIT) is used estimate indices. Simulation results followed experimental real time presented show advantages accuracy using this further conformance device well known standards IEC.

This paper presents the theory, design and implementation of two real time virtual instruments to measure power quality indices such as current harmonic distortion, voltage distortion factor given by IEEE standard. Different windowing techniques are explored in estimation spectra. Cross spectral analysis is used for measurement phase angles signal. The instrument integrates digital signal processing (DSP) methods Cross-spectral density with Welch calculate phasors. Moreover a tunable Kalman...