نتایج جستجو برای: hf limit

تعداد نتایج: 210549  

Journal: :Acta Metallurgica Slovaca 2022

In terms of the current trend research and development new materials optimization in automotive industry, greatest attention is paid to progressive high-strength dual-phase (DP) steels with increased stampability, which are designed for cold stamping specific internal car body components market. New grades DP provide a combination high strength good formability contribute weight savings vehicle...

2002
Antara Dutta David Sherrill

Several approximate correlation methods have been assessed for bond breaking reactions in BH, HF, and CH4 by comparison to the full configuration interaction limit. Second-order Møller–Plesset perturbation theory, coupled-cluster singles and doubles ~CCSD!, coupled-cluster with perturbative triples @CCSD~T!#, and the hybrid density-functional method Becke three parameter Lee–Yang– Parr have bee...

Journal: :Journal of Computational Chemistry 2001
Béla Paizs Pedro Salvador Attila G. Császár Miquel Duran Sándor Suhai

Geometry optimizations were carried out for the (HF)2, (H2O)2, and HF–H2O intermolecular complexes using the MP2/aug-cc-pVXZ {X = 2, 3, 4, and 5} theoretical models on both the uncorrected and counterpoise (CP) corrected potential energy hypersurfaces (PES). Our results and the available literature data clearly show that extrapolation of intermolecular distances to the complete basis set (CBS) ...

Journal: :EURASIP J. Wireless Comm. and Networking 2013
Papa Ndao Yvon Erhel Dominique Lemur Martial Oger Jérôme Le Masson

A multiple-input multiple-output (MIMO) system for trans-horizon radio communications within the high-frequency (HF) band (3 to 30 MHz) is presented. The diversity of transmitted polarizations is proposed as an alternative to spatial diversity in order to limit the aperture of antenna arrays at both ends of the radio link. In a theoretical step providing the estimation of capacity gain for diff...

Journal: :European journal of endocrinology 2005
Massimo Casu Caterina Cappi Vittoriana Patrone Eva Repetto Massimo Giusti Francesco Minuto Giovanni Murialdo

OBJECTIVE This study aimed to analyze the autonomic control of heart rate variability (HRV) in subjects receiving chronic l-thyroxine (l-T4) treatment after total thyroidectomy and (131)I therapy for differentiated thyroid carcinoma. METHODS Blood pressure (BP) and sympatho-vagal activity (evaluated by power spectral analysis (PSA) of time-domain parameters of HRV) were studied in clinostatis...

Journal: :Clinical chemistry 2007
Peter A Kavsak Dennis T Ko Alice M Newman Glenn E Palomaki Viliam Lustig Andrew R MacRae Allan S Jaffe

BACKGROUND Inflammation in acute coronary syndrome (ACS) can identify those at greater long-term risks for heart failure (HF) and death. The present study assessed the performance of interleukin (IL)-6, IL-8, and monocyte chemoattractant protein-1 (MCP-1) (cytokines involved in the activation and recruitment of leukocytes) in addition to known biomarkers [e.g., N-terminal pro-brain natriuretic ...

Journal: :Revista espanola de cardiologia 2011
Patrizio Lancellotti Raluca Dulgheru

Limitation of exercise capacity is a hallmark of chronic congestive heart failure (HF), varying directly with the severity of the disease. Muscular fatigue and dyspnea on exertion are the most common symptoms of exercise intolerance; however, their origin is still not fully explained. Heart failure is a multifaceted clinical syndrome characterized by the inability of the heart to generate cardi...

ژورنال: پژوهش در پزشکی 2014
بهجتی, محدثه, بهنمون, مهسا, صادقی, معصومه, صراف زادگان, نضال, نغنایان, مینا, کشوری, مهتاب, کوشک زری, مهدی, گرک یراقی, محمد,

Abstract Background: Due to the relationship between air pollution and occurrence of de-novo heart failure (HF) or decompensation of symptoms of HF, we aimed to evaluate such relationship in HF admissions in Isfahan hospitals. Materials and methods: This case-crossover study is performed on 120 patients with mean age of 65.9±10.4 (45-86 years old) from cases referred to hospitals, which resulte...

Journal: :American journal of physiology. Heart and circulatory physiology 2005
Eric J Ansorge Robert A Augustyniak Mariana L Perinot Robert L Hammond Jong-Kyung Kim Javier A Sala-Mercado Jaime Rodriguez Noreen F Rossi Donal S O'Leary

We investigated the effect of muscle metaboreflex activation on left circumflex coronary blood flow (CBF), coronary vascular conductance (CVC), and regional left ventricular performance in conscious, chronically instrumented dogs during treadmill exercise before and after the induction of heart failure (HF). In control experiments, muscle metaboreflex activation during mild exercise elicited si...

2017
Anupama Vasudevan Alyssa G Munkres Hyun Joon Shin Syed A Sarmast Peter A McCullough

Introduction: The 2013 American College of Cardiology/ American Heart Association postulated four blood biomarkers for riskstratification and management of heart failure (HF). We proposed a severity index score to assess myocardial injury by integrating the four biomarkers (Troponin I or T, B-type natriuretic peptide or N-terminal BNP, galectin-3, and ST2) and an inclusive score for the therape...

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