Results 51 to 60 of about 2,899,528 (318)

Dynamic Analysis and Optimization of Mechanical Impactor

Shiyou jixie, 2020
To address the problems of small impact energy, short continuous working time and poor stability in deep wells of the existing impactors, a new type of mechanical impactor is designed.
Liu Yu, Feng Jin, Huang Xinyu, Chen Wei
doaj  

Electric memory effects in styrene-butadiene rubber, containing electric inclusions of highly aromatic oil [PDF]

Journal of Advanced Dielectrics, 2018
It was determined that samples of styrene-butadiene rubber (SBR), containing highly aromatic oil, exhibit memory effects giving rise to dynamic elastic modulus, damping and internal stresses degree which can be tailored depending on the applied electric ...
Ricardo Raúl Mocellini, Federico Guillermo Bonifacich, Fernando Daniel Lambri, Mariel Antonella Lambri, Griselda Irene Zelada, Osvaldo Agustín Lambri   +5 more
doaj   +1 more source

Analysis of dynamic mechanical response in torsion [PDF]

, 2016
We investigate the dynamic response of industrial rubbers (styrene-butadiene random copolymers, SBR) in torsion and compare against common small amplitude oscillatory shear measurements by using a torsion rectangular fixture, a modified torsion ...
Coppola, S, D'Avino, G, De Corato, M, Dessi, C, Maffettone, PL, Trofa, M, Tsibidis, GD, Vlassopoulos, D   +7 more
core   +1 more source

Psychological Safety Among Interprofessional Pediatric Oncology Teams in Germany: A Nationwide Survey

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Psychological safety (PS) is essential for teamwork, communication, and patient safety in complex healthcare environments. In pediatric oncology, interprofessional collaboration occurs under high emotional and organizational demands. Low PS may increase stress, burnout, and adverse events.
Alexandros Rahn, Anna‐Lena Herbach, Christian Bock, Katharina Fleig, Urs Mücke   +4 more
wiley   +1 more source

A comparative study of viscoelastic characteristics in polymer composite with respect to the damping performance and structural behavior [PDF]

Engineering and Technology Journal
This study systematically investigates the viscoelastic characteristics and damping performance of polymer composites, examining the interplay between filler morphology, matrix-filler interactions, and structural behavior.
Rafal Hameed
doaj   +1 more source

A comparative experimental study on damping properties of epoxy nanocomposite beams reinforced with carbon nanotubes and graphene nanoplatelets

Nanotechnology Reviews, 2022
Carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) are extremely ideal nanofillers for applications in damping polymer. This work explores the damping behavior of polymer nanocomposite beams made of epoxy resin reinforced with CNTs and GNPs ...
Pan Shengqi, Feng Jigang, Safaei Babak, Qin Zhaoye, Chu Fulei, Hui David   +5 more
doaj   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Low Frequency Mechanical Spectroscopy Study of Three Pyrrolidinium Based Ionic Liquids

Archives of Metallurgy and Materials, 2015
In this work we present our recent results on three ionic liquids (ILs), which share bis(trifluoromethanesulfonyl)imide (TFSI) as anion and have different pyrrolidinium based cations.
Trequattrini F., Paolone A., Palumbo O., Vitucci F.M., Navarra M.A., Panero S.   +5 more
doaj   +1 more source

Dynamic Analysis of Tendon Driven Robotic Mechanisms [PDF]

Journal of Robotic Systems, 2003
AbstractIn this paper, a systematic methodology for the dynamic analysis of tendon‐driven robotic mechanisms is presented. The approach utilizes the recursive Newton‐Euler equations to compute the kinematic and dynamic equations of all links that locate on the transmission line of a tendon‐driven robotic mechanism.
Lee, J.-J., Lee, Y. H.
openaire   +1 more source

Alternating copolyesteramides based on mixtures of 1,4-butyleneterephthalamide and -isophthalamide and ethanediol (4NT/I2) [PDF]

, 1997
Alternating copolyesteramides (APEA's) consisting of mixtures of 1,4-butyleneterephthalamide ester (N,N′-bis(p-carbomethoxybenzoyl) diaminobutane) and 1,4-butyleneisophthalamide ester (N,N′-bis(m-carbomethoxybenzoyl) diaminobutane) polymerized with ...
Bouma, K., Gaymans, R.J., Niesten, M.C.E.J.   +2 more
core   +2 more sources