Results 21 to 30 of about 7,296 (274)

Comparison of transosseous suture and suture anchors in the fixation of rotator cuff tears: a biomechanical experimental study

open access: yesActa Orthopaedica et Traumatologica Turcica, 2021
Objectives: This study was designed to compare the primary fixation strength of transosseous sutures and suture anchors in rotator cuff repair.\nMethods: Thirty-two sheep shoulders were divided into four homogeneously equal groups.
Ata Can lar   +4 more
doaj  

Beneficial influence of nanocarbon on the aryliminopyridylnickel chloride catalyzed ethylene polymerization [PDF]

open access: yes, 2013
A series of 1-aryliminoethylpyridine ligands (L1―L3) was synthesized by condensation of 2-acetylpyridine with 1-aminonaphthalene, 2-aminoanthracene or 1-aminopyrene, respectively.
Durand, Jérôme   +6 more
core   +4 more sources

Three-phase characterization of uniaxially stretched linear low density polyethylene [PDF]

open access: yes, 2011
This study comprises a detailed morphological study of cold-drawn polyethylene monofilaments by Raman spectroscopy, differential scanning calorimetry (DSC) and X-ray measurements.
Kiekens, Paul   +2 more
core   +3 more sources

Relevance of the composition of municipal plastic wastes for metallurgical coke production [PDF]

open access: yes, 2011
This study is concerned with the effects of the composition of mixed plastic wastes on the thermoplastic properties of coal, the generation of coking pressure and the quality of the resulting cokes in a movable wall oven at semipilot scale.
Alvarez, R.   +3 more
core   +1 more source

The effect of modality on linear low-density polyethylene crystallization behaviour at high and very high supercoolings; pp. 53–57 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2009
Isothermal crystallization rates of uni- and bimodal linear low density polyethylenes having similar average molar mass and branching content were analysed at various temperatures in a very high supercooling range by means of a novel method – chip ...
Triin Märtson   +3 more
doaj   +1 more source

Fracture mechanics analysis of arc shaped specimens for pipe grade polymers [PDF]

open access: yes, 2009
Accepted ...
Argyrakis, C, Leevers, PS, Özbek, P
core   +1 more source

Direct Synthesis of Polyethylene Thermoplastic Elastomers Using Hybrid Bulky Acenaphthene-Based α-Diimine Ni(II) Catalysts

open access: yesMolecules, 2023
Recently, polyolefin thermoplastic elastomers can be obtained directly using ethylene as a single feedstock via α-diimine nickel-catalyzed ethylene chain walking polymerization.
Hui Wang   +3 more
doaj   +1 more source

UHMWPE/SBA-15 nanocomposites synthesized by in situ polymerization [PDF]

open access: yes, 2016
Different nanocomposites have been attained by in situ polymerization based on ultra-high molecular weight polyethylene (UHMWPE) and mesoporous SBA-15, this silica being used for immobilization of the FI catalyst bis [N-(3-tert-butylsalicylidene)-2,3,4,
Adewole   +60 more
core   +3 more sources

Correlation of cross-linking as measured by the trans-vinylene index and in vitro wear of polyethylene from various acetabular liner brands

open access: yesBone & Joint Research
Aims: Highly cross-linked polyethylene (HXLPE) greatly reduces wear in total hip arthroplasty, compared to conventional polyethylene (CPE). Cross-linking is commonly achieved by irradiation. This study aimed to compare the degree of cross-linking and in
Peter Wahl   +8 more
doaj   +1 more source

Photodegradable branched polyethylenes from carbon monoxide copolymerization under benign conditions

open access: yesNature Communications, 2020
Small amounts of in-chain keto groups render polyethylene (PE) photodegradable, a desirable feature in view of environmental plastics pollution. Here the authors introduce low ketone content by copolymerization in organic solvent or under aqueous ...
Tobias O. Morgen   +3 more
doaj   +1 more source

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