Driven by the current economical needs, developments in process design and control point out that deliberate operation of chemical process requires better models and control designs than what is offered by the traditional Linear Time-Invariant (LTI) framework. In this paper an identification approach based on Linear Parameter-Varying (LPV) models is introduced for process systems which enables ...

BACKGROUND AND OBJECTIVES High body mass index appears protective in hemodialysis patients, but uncertainty prevails regarding which components of body composition, fat or lean body mass, are primarily associated with survival. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Data between April 2006 and December 2012 were extracted from the Fresenius Medical Care Europe subset of the internation...

Trypsin inhibitory activity from the hemolymph of Limulus polyphemus was found to co-purify with coagulogen (the clottable protein in blood coagulation) after acidification, ammonium sulfate precipitation, and gel filtration. Limulus trypsin inhibitor (LTI) was separated from coagulogen by ion-exchange chromatography on carboxymethyl-Sephadex. LTI is an inhibitor of trypsin (Ki = 3.3 nM) on bot...

This paper extends results about stability and stabilization of a retarded quasipolynomial obtained using the Mikhaylov criterion earlier. Retarded quasipolynomials appear as numerators and denominators of linear time-invariant time-delay systems (LTI-TDS). A LTI-TDS system of retarded type (destitute of distributed delays) is said to be stable if all roots of its characteristic quasipolynomial...

Le paradigme central en théorie de la commande robuste repose sur la structure de commande à contre-réaction et sur les modèles linéaires à temps invariant (LTI) des systèmes dynamiques (cf. figure 1). La première utilise l’information des sorties mesurées y pour élaborer un signal de commande u. Les modèles LTI quant à eux sont des objets mathématiques bien caractérisés et simples à utiliser. ...

Interleukin (IL)-1 signaling plays a critical role in intestinal immunology. Here, we report that the major population of intestinal lamina propria lymphocytes expressing IL-1 receptor 1 (IL-1R1) is the lymphoid tissue inducer (LTi)-like cell, a type of innate lymphoid cell. These cells are significant producers of IL-22, and this IL-22 production depends on IL-1R1 signaling. LTi-like cells are...

In spite of the undisputedly high degree of non-stationarity of speech signals, the present day determination of its acoustic features is based on the assumption that speech production can be described as a linear time invariant (LTI) system on the time scale of about 20 ms [1]. In automatic speech recognition, the wide sense stationarity of an LTI–system is used as prerequisite for the consist...

Kalman-Yakubovich-Popov (KYP) Lemma (also frequently called “positive real lemma”) is a major result of the modern linear system theory. It is a collection of statements related to existence and properties of quadratic storage functions for LTI state space models and quadratic supply rates. The KYP Lemma is used in the derivation of H2 and H-Infinity optimal controllers, Hankel optimal reduced ...

The Language Translation Interface (LTI) is a prototype developed for the Australian Defence Organisation. The aim is provide a single, simple, interface to a variety of MT tools and utilities for personnel who need to produce translations when they have no easy access to human translators. Now that the LTI has been demonstrated and trialled at several military exercises, we are gathering user ...

Abstract. This special issue marks the 100th anniversary of founding Liverpool Tidal Institute (LTI), one a number important scientific developments in 1919. The preface gives brief history how LTI came about and roles its first two directors, Joseph Proudman Arthur Doodson. It also short overview research on tides at through years. Summaries are given 26 papers issue. will be seen that topics ...