Results 41 to 50 of about 355,391 (369)

Dimensional analysis of total hip arthroplasty polyethylenes

Revista Brasileira de Ortopedia, 2013
Objective: This paper performs a dimensional analysis of different total hip arthroplasty polyethylenes, cemented and non-cemented, Brazilian made and imported. Methods: It was considered acetabular components with 50 mm for the 28 mm femoral heads.
Carlos Roberto Schwartsmann, Leandro de Freitas Spinelli, Leonardo Carbonera Boschin, Ramiro Zilles Goncalves, Anthony Kerbes Yepez, Telmo Roberto Strohaecker, Ralf Wellis de Souza   +6 more
doaj   +1 more source

Selective Chain-End Functionalization of Polar Polyethylenes: Orthogonal Reactivity of Carbene and Polar Vinyl Monomers in Their Copolymerization with Ethylene.

Journal of the American Chemical Society, 2018
Pd(II)-catalyzed copolymerization of ethylene, carbene species, and polar vinyl monomers is successfully developed for the first time to obtain chain-end-functionalized polar polyethylenes, with selective distribution of the polar vinyl monomers within ...
Xiaoming Wang, K. Nozaki
semanticscholar   +1 more source

Correlation of Polymerization Conditions with Thermal and Mechanical Properties of Polyethylenes Made with Ziegler-Natta Catalysts

International Journal of Polymer Science, 2014
In this study, the synthesis of polyethylenes has been carried out with titanium-magnesium supported Ziegler-Natta catalysts in laboratory-scale reactors.
M. Anwar Parvez, Mostafizur Rahaman, M. A. Suleiman, J. B. P. Soares, I. A. Hussein   +4 more
doaj   +1 more source

Order-Disorder Transition in Urea-Polyethylene Complex [PDF]

, 1985
The phase transition of urea complexes whose guest components range from n-paraffin to polyethylene was investigated by DSC thermal analysis. The transition temperatures increased with increasing the chain length; the related heats did not change much ...
Monobe, Kazuo, Yokoyama, Fumiyoshi
core   +1 more source

Evolution of polymer blend morphologies during extrusion in a flat die [PDF]

, 2009
The control of blend morphologies during process is of prime importance in order to predict the final properties of polymer blends. A coextrusion technique combined with static mixers was developed in order to smartly blend polymeric melts and to ...
GUINAULT, Alain, SOLLOGOUB, Cyrille
core   +5 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

EFFECT OF POLYETHYLENE MOLECULAR MASS CHARACTERISTICS ON SLIP EFFECT

Тонкие химические технологии, 2016
The rheological properties of polyethylene with different molecular weight characteristics were studied. Difference of molecular weight characteristics was found on the basis of melt flow index, and slip effect in the molten polyethylene flow was studied.
A. A. Yurkin, I. D. Simonov-Emelyanov, P. V. Surikov, N. L. Shembel   +3 more
doaj   +1 more source

Fatigue performance evaluation of bitumen mastics reinforced with polyolefins through a dissipated energy approach

Materiales de Construccion, 2020
Polymers are known to improve the fatigue resistance of sphalt mastics. However, undesirable results can be obtained if the polymer is not successfully integrated into the bitumen binder. The goal of this work is to evaluate the effect of the addition of
C. Roman, M. A. Delgado, M. García-Morales   +2 more
doaj   +1 more source

Dynamic shear responses of polymer-polymer interfaces

, 2012
In multi-component soft matter, interface properties often play a key role in determining the properties of the overall system. The identification of the internal dynamic structures in non-equilibrium situations requires the interface rheology to be ...
Kajiwara, Toshihisa, Kataoka, Kiyoyasu, Nakayama, Yasuya   +2 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source