نتایج جستجو برای: lft

تعداد نتایج: 524  

1994
Anders Helmersson

This paper presents the solution to the mixed-synthesis problem, and how to design gain scheduling controllers with linear fractional transformations (LFTs). The system is assumed to have parameter dependences described by LFTs. The goal of the controller is, with real-time knowledge of the parameters, to provide disturbance and error attenuation. The paper treats both complex and real parametr...

2013
Young Ho Lee Gwan Gyu Song

BACKGROUND/AIMS We assessed the efficacy and safety of bosentan in patients with pulmonary arterial hypertension (PAH). METHODS We surveyed randomized controlled trials (RCTs) of the efficacy and safety of bosentan in patients with PAH using MEDLINE, EMBASE, the Cochrane Controlled Trials Register, and manual searches. Meta-analysis of RCTs was performed to determine treatment efficacy and sa...

2012
Eun Sun Jang Sook-Hyang Jeong Sung Ho Hwang Hyun Young Kim So Yeon Ahn Jaebong Lee Sang Hyub Lee Young Soo Park Jin Hyeok Hwang Jin-Wook Kim Nayoung Kim Dong Ho Lee

BACKGROUND Liver function tests (LFTs) can be affected by many factors and the proposed effects of coffee on LFT require a comprehensive evaluation. The aim of this study was to elucidate whether drinking coffee, smoking, or drinking alcohol have independent effects on LFTs in Korean health-check examinees. METHODS We used the responses of 500 health-check examinees, who had participated in a...

1998
A. Varga S. Bennani D. Moormann

Analysis is a powerful tool for the assessment of the stability of uncertain parametric systems by means of the Structured Singular Value. The peak upper bound value of over a frequency range provides information on the stability margin of a system for given variations of uncertain parameters, while the computed lower bound on allows to obtain worst-case parameter combinations destabilizing the...

Journal: :Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology 2010
Shadi Kolahdoozan Rasoul Sotoudehmanesh Morteza Khatibian Ali Ali-Asgari Shadi Shahraeeni Fatemeh Zeinali

BACKGROUND AND AIMS To determine the time to normalization of common bile duct (CBD) diameter after endoscopic sphincterotomy and stone extraction in patients with choledocholithiasis. METHODS Patients with CBD dilation due to choledocholithiasis were enrolled. CBD diameter was measured by transabdominal ultrasonography before, and repeated after one, three, six and twelve months after endosc...

Journal: :Journal of Intelligent and Fuzzy Systems 2017
Yang Liu Xiaojun Ban Fen Wu Hak-Keung Lam

This paper presents a gain-scheduling output feedback control design method for T-S fuzzy systems with actuator saturation. Different from existing control design methods for T-S fuzzy systems, the basic idea of the proposed approach is to transform the T-S fuzzy model with saturation nonlinearity into the form of linear fractional transformation (LFT). Instead of commonly used fuzzy controller...

2013
Hassan Salehi Marzieh Salehi Neda Adibi Maryam Salehi

BACKGROUND Crimean Congo hemorrhagic fever (CCHF) has high morbidity and mortality. Therefore the treatment effect of Ribavirin with and without intravenous Immunoglobulin (IVIG) in viral Crimean Congo hemorrhagic fever was evaluated. MATERIALS AND METHODS In a clinical trial study, 40 patients with confirmatory positive serology test, 12 (30%) received Ribavirin and IVIG (case group) and 28 ...

Journal: :Annals of the rheumatic diseases 1975
P Beighton L Solomon H A Valkenburg

(1) An epidemiological study of a rural African community has been carried out in the Western Transvaal. Altogether 801 respondents over 15 years old were examined; radiographs of the hands and feet were obtained in all these individuals. Serological tests for rheumatoid factor were carried out on 516 blood samples. (2) The diagnosis of inflammatory polyarthritis was based on a modification of ...

1998
Abbas Edalat Peter John Potts

We develop the theoretical foundation of a new representation of real numbers based on the innnite composition of linear fractional transformations (lft), equivalently the innnite product of matrices, with non-negative coeecients. Any rational interval in the one point compactiication of the real line, represented by the unit circle S 1 , is expressed as the image of the base interval 0; 1] und...

Journal: :Birat Journal of Health Sciences 2022

Introduction: Hypertensive disorders complicates 5-10% of pregnancies all over the world and its incidence in India was found to be 10.08% as per data National Eclampsia Registry (NEP).
 Objectives: The objectives this study were determine abnormal liver, renal cerebral function test among patients with preeclampsia eclampsia their correlation maternal fetal outcome.
 Methodology: a p...

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