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On Data-driven Multistep Subspace-based Linear Predictors

The focus of this contribution is the estimation of multi-step-ahead linear multivariate predictors of the output making use of finite input-output data sequences. Different strategies will be presented, the common factor being the exploitations of geometric operations on appropriate subspaces spanned by the data. In order to test the capabilities of the proposed methods in predicting new data, a

The complication rate after hypospadias repair correlated to preoperative symptoms

Aim: To assess the rate of complications following hypospadias repair in a consecutive series of boys and the correlations of those complications with their preoperative symptoms, degree of hy- pospadias and method of operation. This study was conducted to address the question of whether all boys with all degrees of hypospadias should undergo reconstruction. Methods: This was a prospective cohort

Analysis of isentropic mixtures for their use as working fluids in organic Rankine cycles

The selection of appropriate working media for organic Rankine cycles (ORC) is essential for the optimization of their performance. Dry fluids are widely used in existing ORC because, unlike wet fluids, they do not need to be superheated to avoid wet expansion that may cause damage to the expander. However, regeneration is sometimes needed for fluids with a highly dry behavior in order to improve

Efficiency improvements in an industrial steam turbine stage - Part 2

Improvement in isentropic total to total efficiency of a low reaction turbine stage by airfoil redesign was considered in first part of the paper. Further, modifications in the flow path of the baseline stage is considered in second part of the paper. Flow path of the baseline stage incorporates axisymmetric meridional endwall contour(commonly called Russian kink). For a stage comprising of high a

Efficiency improvements in an industrial steam turbine stage - Part 1

The present work approaches the idea of increasing the efficiency of an industrial steam turbine stage. For this endeavor, an industrial steam turbine stage comprising of prismatic stator and rotor is considered. With the velocity triangles as input, airfoil design is carried out. Firstly, the rotor is redesigned to take care of any incidence issues in the baseline case. In rotor blades, the peak

Waste heat recovery in a cruise vessel in the baltic sea by using an organic rankine cycle : A case study

Maritime transportation is a significant contributor to So x, NO xand particle matter emissions, even though it has a quite low CO2 impact. New regulations are being enforced in special areas that limit the amount of emissions from the ships. This fact, together with the high fuel prices, is driving the marine industry towards the improvement of the energy efficiency of current ship engines and th

Strain rate effects at tensile loading of single crystal Cu nano-wires

It is well-known and experimentally conrmed that the mechanical re-sponse to loading of small enough structures diers from what applies to themacro-scale. This is valid for structures of linear measures at the nano-scale,typically below about 50nm. In addition to pure size eects also the crys-tallographic orientation becomes important at this scale. This study demon-strates the mechanical responseIt is well-known and experimentally conrmed that the mechanical re-sponse to loading of small enough structures diers from what applies to themacro-scale. This is valid for structures of linear measures at the nano-scale,typically below about 50nm. In addition to pure size eects also the crys-tallographic orientation becomes important at this scale. This study demon-strates the mechanical response

Legal Empowerment of Informal Workers Formalizing Street Vending as a Tool for Poverty Reduction

This chapter brings empirical data to the debate about the ability of law to contribute to the empowerment and development of informal workers, looking into the case of street vendors. Looking into the potential that law has for poverty reduction is an important goal and for that reason, this research aims to understand whether legal change, getting the legal permit to sell, can in fact bring empo

A Generalized Zero-Forcing Precoder with Successive Dirty-Paper Coding in MISO Broadcast Channels

In this paper, we consider precoder designs for multiuser multiple-input-single-output (MISO) broadcasting channels. Instead of using a traditional linear zero-forcing (ZF) precoder, we propose a generalized ZF (GZF) precoder in conjunction with successive dirty-paper coding (DPC) for datatransmissions, namely, the GZF-DP precoder, where the suffix ‘DP’ stands for ‘dirty-paper’. The GZF-DP precode