In performance-driven interconnect design, delay estimators are used to determine both the topol-ogy and the layout of good routing trees. We address the class of moment-matching methods used to model distributed RLC interconnects with a small number of lumped segment models. We provide new non-uniform segment models which match the transfer function of a general interconnect line with source a...

This paper presents a novel fault location method for series compensated transmission lines. It is established based on synchronized voltages sampling and Thevenin impedance from both ends of series compensated transmission line. The method is based on the use of phasor measurement units (PMU) technology which is aimed to be independent of current measurements, fault type, fault resistance, fau...

In recent years, magnetic resonance imaging (MRI) systems that operate up to under 3 T are being used in clinical practice in Japan. In order to achieve the requirements of higher image quality and shorter imaging times, devices that utilize high magnetic fields (> 3 T) and high power electromagnetic (EM) wave pulses have been developed. The rise of the static magnetic field is proportional to ...

Design of a state observer is an important issue in control systems and signal processing. It is well known that it is difficult to obtain the desired properties of state feedback control if some or all of the system states cannot be directly measured. Moreover, the existence of a lumped perturbation and/or a time delay usually reduces the system performance or even produces an instability in t...

Contents 1. Introduction 2. The two-dimensional models of overland flow 3. The equations of one-dimensional channel flow 4. Simplification of the St. Venant equations 5. Linearization of the St. Venant equations and solution of linear equations 6. Kinematic wave equations and their application 7. Numerical solution of the unsteady flow equations 8 Application of finite elements methods 9. Lumpe...

Abstract. In the present paper, we solve three boundary value problems related to the temperature field in oil strata – the fractional extensions of the incomplete lumped formulation and lumped formulation in the linear case and the fractional generalization of the incomplete lumped formulation in the radial case. By using the Caputo differintegral operator and the Laplace transform, the soluti...

This paper presents lumped dual-frequency impedance transformers for frequency-dependent complex loads. According to different dual-frequency allocations of a complex load in Smith chart, three types of impedance matching networks are presented respectively. Several kinds of lumped circuit blocks are used as basic elements for constructing these transformers with design formula deduced. Various...

In the past two decades, the FETI method introduced in [10] and its variants have become a class of popular methods for the parallel solution of large-scale finite element problems, see e.g. [11], [9], [14], [15], [8]. A key ingredient in this class of methods is a good preconditioner for the dual Schur complement system whose operator is a weighted sum of subdomain Neumann to Dirichlet (NtD) m...

The paper describes the development of CVFE a 1-D/2-D Control Volume Finite Elements model within the frame of the D e cision Support system for Inundation Risk Evaluation and Emergencies management (DESIREE) project. The CVFE approach addresses and solves the discretisation problem, by defining a double mesh: the first one is a triangular mesh of FEs over which the momentum equations can be lu...

This study tested four sensitivity analysis methods: (1) local analysis using parameter estimation software (PEST), (2) regional sensitivity analysis (RSA), (3) analysis of variance (ANOVA), and (4) Sobol’s method to identify sensitivity tools that will advance our understanding of lumped hydrologic models for the purposes of model improvement, 5 calibration efficiency and improved measurement ...