Results 41 to 50 of about 1,667,185 (297)

The Effects of Joint Clearance on the Dynamics of the 3-RPR Planar Parallel Manipulator [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2018
In reality, clearances in the joints are inevitable due to the defects arising from manufacturing process, design tolerances, and wearing after a certain working period.
Seyyed Mojtaba Varedi-Koulaei, Mahdi Bamdad   +1 more
doaj  

Effect of Multi-Joint Clearance Coupling on Shimmy of Nose Landing Gear

Aerospace, 2023
The existence of joint clearances in the nose landing gear (NLG) is inevitable and significantly affects shimmy. It was found that the interaction of each joint clearance is closely related to the analysis of shimmy stability.
Guang Feng, Bingyan Jiang, Yiyao Jiang
doaj   +1 more source

Non-Uniform Clearance between Rotor Surfaces and Its Effect on Machine Performance in Twin-Screw Compressors [PDF]

, 2012
The performance of twin-screw compressors is primarily affected by the clearance between a pair of meshing rotors. This study proposes a method for calculating the normal clearance along the contact line between rotors using two normal rack curves, which
Wu, Yu-Ren, Hsieh, Ho-Chun, Hsiao, Hsiang-Hui   +2 more
core   +1 more source

Nonlinear Characteristics of Revolute Joints with Clearance

Journal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i3.236 The nonlinear contact characteristic of revolute joint with clearance can degrade the performance of deployable structure. In this article, tensile and compressive tests are adopted to investigate the accuracies of the simplest conformal model and nonconformal model for contact, which are used to calculate the ...
Rong-qiang, Liu, Jing, Zhang, Hong-wei, Guo, Zong-quan, Deng   +3 more
openaire   +5 more sources

Global Efforts to Reduce Paediatric Cancer Care Disparities in Radiotherapy: A Decade Change

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background We present an update on the status, needs and challenges faced by paediatric imaging and radiotherapy (RT) programmes globally after a previous survey conducted by the International Atomic Energy Agency (IAEA) 10 years prior. Methods We developed and distributed a 121‐question survey to radiation oncologists, medical physicists and ...
Raymond B. Mailhot Vega, Daniel J. Indelicato, Jeanette Parkes, Natia Esiashvili, Josué Hernández Benítez, Miriam Mikhail‐Lette, Olivera Cirajc Bjelac, Daniel Berger, Eva Ciurana, Yavuz Anacak, Lisbeth Cordero‐Mendez   +10 more
wiley   +1 more source

Creatinine clearance versus serum creatinine as a risk factor in cardiac surgery [PDF]

, 2003
Walter JA, Mortasawi A, Arnrich B, et al. Creatinine clearance versus serum creatinine as a risk factor in cardiac surgery. BMC Surgery. 2003;3(1): 4.BACKGROUND: Renal impairment is one of the predictors of mortality in cardiac surgery.
Mortasawi, Amir, Inez Frerichs, Albert, Alexander, Mortasawi Amir, Rosendahl Ulrich, Frerichs, Inez, Alexander Albert, Ulrich Rosendahl, Jürgen Ennker, Amir Mortasawi, Walter, Jörg, Arnrich, Bert, Rosendahl, Ulrich, Frerichs Inez, Albert Alexander, Arnrich Bert, Ennker Jürgen, Jörg Walter, Bert Arnrich, Walter, Jörg A., Walter Jörg, Ennker, Jürgen   +21 more
core   +2 more sources

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

The value of statistical life and cost–benefit evaluations of landmine clearance in Cambodia [PDF]

, 2010
Development agencies spend approximately US$ 400 million per year on landmine clearance. Yet many cost–benefit evaluations suggest that landmine clearance is socially wasteful because costs appear to far outweigh social benefits.
Helmers, Kent, Cameron, Michael Patrick, Tressler, John, Lim, Steven, Vaddanak, Kien, Gibson, John   +5 more
core   +1 more source

Research on Influence of Joint Clearance on Precision of 3-TPT Parallel Robot [PDF]

Mechanical Sciences, 2019
The error model of the working accuracy of parallel mechanism was established in this paper. The D-H matrix method and error independent method were used to analyze the clearance error of mechanism joint based on the inverse position kinematics solution.
C. Zhu, Z. Zhao
doaj   +1 more source

Design and analysis strategies for robust microbiome ageing research

FEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik, İsmail Güderer, Yi Wang, Tayyaba Alvi, Prasoon Pandey, Handan Melike Dönertaş   +5 more
wiley   +1 more source