Results 151 to 160 of about 34,568 (304)
Preload on draft gear in freight trains
, 2017 Adjusting draft gear preloads requires minimum or no structural changes to the existing coupler systems. Better or optimal preloads are more promising to be implemented than modifying other parameters such as wedge angles and spring stiffness.
W Ma (9852659) +7 more
core +1 more source
Interventional therapies for chronic heart failure: An overview of recent developments
ESC Heart Failure, Volume 12, Issue 2, Page 1081-1094, April 2025.Abstract Heart failure (HF), the final manifestation of most cardiovascular diseases, has become a major global health concern, affecting millions of individuals. Despite basic drug treatments, patients present with high morbidity and mortality rates. However, recent advancements in interventional therapy have shown promising results in improving the ...
Bingchen Guo +7 more
wiley +1 more source
The Neutral Zone In Lumbar Joint Movements And How It Is Affected By Preload
, 2006 Introduction \ud It is important to understand the mechanics of the lumbar spine, as it has been shown that much low back pain is attributable to mechanical factors.
de Visser, Hans +2 more
core
ESC Heart Failure, Volume 12, Issue 2, Page 1316-1325, April 2025.Abstract Objective This study aimed to evaluate the utility of left atrial volume and function in uraemic patients using four‐dimensional automatic left atrial quantification (4D auto LAQ) technology. Methods Thirty‐four undialysed uraemic patients (U‐ND group), 60 dialysed uraemic patients (U‐D group), and 32 healthy volunteers (N group) were enrolled
Bing Li, Meihua Chen, Xuning Huang
wiley +1 more source
Optimization of Preload in Severe Sepsis and Septic Shock
, 2020 In sepsis both under-and overresuscitation are associated with increased morbidity and mortality. Moreover, sepsis can be complicated by myocardial dysfunction, and only half of the critically ill patients exhibit preload responsiveness.
Adil Shujaat +2 more
core
Preload indexes in thoracic anesthesia
, 2003 Purpose of the review An adequate cardiac preload is essential in the treatment of critically ill patients. During anesthesia for thoracic surgery, volume and vasoactive therapy to optimize cardiac output, oxygen delivery (tissue perfusion) and to avoid
DELLA ROCCA, Giorgio +1 more
core +1 more source
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT Viscous dampers (VDs) are widely used to mitigate the excessive responses of long‐span bridges. However, VDs face some intricate challenges in engineering practices, including high damping coefficient requirement, potential base shear amplification and tremendous damping force under high velocity. To address these issues, this study develops a
Ruisheng Ma +5 more
wiley +1 more source
Energy Science &Engineering, EarlyView.This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin +4 more
wiley +1 more source
Loss of preload in pretensioned bolts
, 2016 Minor thesis --- Preload loss in pretensioned bolts is an inevitable phenomenon. This thesis focuses on the different causes for bolt relaxation and their relation to joint design.
Nijgh, M.P. (author)
core
Energy Science &Engineering, EarlyView.This study determines the impact critical stress early‐warning indicators for deep soft coal seams: 18 MPa (shallow holes), 20 MPa (deep holes), and 3 MPa/d daily stress change rate, via theoretical, experimental and simulation methods. ABSTRACT The accurate determination of early‐warning indicators for critical impact stress in deep soft coal seams is
Haichen Yin +8 more
wiley +1 more source