Search results for "Simplicity"

Estimating Missing Information by Cluster Analysis and Normalized Convolution

2018

International audience; Smart city deals with the improvement of their citizens' quality of life. Numerous ad-hoc sensors need to be deployed to know humans' activities as well as the conditions in which these actions take place. Even if these sensors are cheaper and cheaper, their installation and maintenance cost increases rapidly with their number. We propose a methodology to limit the number of sensors to deploy by using a standard clustering technique and the normalized convolution to estimate environmental information whereas sensors are actually missing. In spite of its simplicity, our methodology lets us provide accurate assesses.

Power losses in power-split CVTs: A fast black-box approximate method

2018

Abstract This paper addresses the mechanical losses of planetary transmissions, with particular attention to power-split CVTs in their hybrid electric versions. It provides unified layout-independent analytical relationships, which can be used for both analysis, design and control purposes, and a simplified approach; the latter overcomes the necessity to segment the operating range of the power-split CVT in order to keep its loss model physically consistent. An example of application to a real hybrid electric PS-CVT is performed to show the simplicity, accuracy and generality of the proposed method.

Mitigating anticipated effects of systematic errors supports sister-group relationship between Xenacoelomorpha and Ambulacraria.

2019

International audience; Xenoturbella and the acoelomorph worms (Xenacoelomorpha) are simple marine animals with controversial affinities. They have been placed as the sister group of all other bilaterian animals (Nephrozoa hypothesis), implying their simplicity is an ancient characteristic ]; alternatively, they have been linked to the complex Ambulacraria (echinoderms and hemichordates) in a clade called the Xenambulacraria , suggesting their simplicity evolved by reduction from a complex ancestor. The difficulty resolving this problem implies the phylogenetic signal supporting the correct solution is weak and affected by inadequate modeling, creating a misleading non-phylogenetic signal. …

Sort and beer: Everything you wanted to know about the sorting task but did not dare to ask

2011

author cannot archive publisher's version/PDF; International audience; In industries, the sensory characteristics of products are key points to control. The method commonly used to characterize and describe products is the conventional profile. This very efficient method requires a lot of time to train assessors and to teach them how to quantify the sensory characteristics of interest. Over the last few years, other faster and less restricting methods have been developed, such as free choice profile, flash profile, projective mapping or sorting tasks. Among these methods, the sorting task has recently become quite popular in sensory evaluation because of its simplicity: it only requires ass…

The place of frailty and vulnerability in the surgical risk assessment: should we move from complexity to simplicity?

2018

Due to aging of the world population, older patients accessing health services are becoming continuously more frequent. This has increased the interest in assessing frailty and vulnerability in all specialties and general medicine. Although the term frailty has been recognized for over 30 years, there is not yet a universally recognized definition, and different care providers assess frailty and vulnerability with dissimilar tools, from very complex to very simple validated scales. Being treated with respect and dignity at the right time and place is the key message, as well as after undergoing a global evaluation both in urgency/emergency and in programmed surgery for all older surgical pa…

Słabości eksplanacyjne teorii inteligentnego projektu

2021

Artykuł powstrzymuje się od polemiki merytorycznej z teorią inteligentnego projektu, dalej TIP, a jedynie wskazuje na jej niedostatki metodologiczne. Dowodzi, że wbrew twierdzeniom jej zwolenników TIP nie jest falsyfikowalna. W odróżnieniu od teorii ewolucji nie może pełnić nawet roli metafizycznego programu badawczego w sensie Poppera. Co jednak ważniejsze, TIP nie pełni żadnych funkcji eksplanacyjnych. W grę wchodzą jedynie wyjaśnienia intencjonalne, TIP zaś nie jest w stanie zidentyfikować motywów domniemanego projektanta. Argument jest zilustrowany przykładami zaczerpniętymi od Stanisława Lema, które pokazują, że możliwych jest wiele alternatywnych hipotez na temat celów domniemanego pr…

A Simple Cardiovascular Model for the Study of Hemorrhagic Shock

2020

Hemorrhagic shock is the number one cause of death on the battlefield and in civilian trauma as well. Mathematical modeling has been applied in this context for decades; however, the formulation of a satisfactory model that is both practical and effective has yet to be achieved. This paper introduces an upgraded version of the 2007 Zenker model for hemorrhagic shock termed the ZenCur model that allows for a better description of the time course of relevant observations. Our study provides a simple but realistic mathematical description of cardiovascular dynamics that may be useful in the assessment and prognosis of hemorrhagic shock. This model is capable of replicating the changes in mean …

Implicit Perception Simplicity and Explicit Perception Complexity in Sensorimotor Comunication

2019

GLOBAL DELAY TIME FOR GENERAL DISTRIBUTED NETWORKS WITH APPLICATIONS TO TIMING ANALYSIS OF DIGITAL MOS INTEGRATED CIRCUITS

1989

We consider here a general nerwork composed by n‐distributed parameters lines (with telegraph‐equations models) and m‐capacitors, all connected by a resistive multiport. An asymptotic stability property drives us to define and evaluate a global parameter (“λ‐delay time”) which describes the speed of signals propagation through the network. Because of its simplicity of calculation and its tightness, the given upper bound of the λ‐delay time is useful in timing analysis of MOS integrated chips.

Criteria for the solubility and non-simplicity of finite groups

2005

Abstract Some criteria of the non-simplicity of a finite group by graph theoretical terms are derived. This is then used to establish conditions under which a finite group is soluble.