scholarly journals Pore structure versus texture relationship of sediment samples from a research well in the Beaufort-Mackenzie Basin, Northwest Territories

2008 ◽  
Author(s):  
S Connell-Madore ◽  
T J Katsube
Keyword(s):  
Pore Structure ◽  
Northwest Territories ◽  
Sediment Samples ◽  
Mackenzie Basin ◽  
Relationship Of ◽  
Structure Versus

Structure versus properties relationship of poly(lactic acid). I. Effect of crystallinity on barrier properties

2009 ◽  
Vol 47 (22) ◽  
pp. 2247-2258 ◽  
Author(s):  
Marjoleine Drieskens ◽  
Roos Peeters ◽  
Jules Mullens ◽  
Dirk Franco ◽  
Pieter J. Lemstra ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Barrier Properties ◽  
Poly Lactic Acid ◽  
Relationship Of ◽  
Structure Versus

Aulacopleurine trilobites from the Llandovery of northwestern Canada

1995 ◽  
Vol 69 (2) ◽  
pp. 326-340 ◽  
Author(s):  
J. M. Adrain ◽  
B. D. E. Chatterton
Keyword(s):  
Northwest Territories ◽  
Early Growth ◽  
Growth Stages ◽  
Mackenzie Mountains ◽  
Relationship Of ◽  
The Relationship

Aulacopleurine trilobites from Llandovery strata of the Whittaker Formation in the central Mackenzie Mountains, Northwest Territories, Canada, include Aulacopleura andersoni n. sp., Aulacopleura? ranfordi n. sp., and Songkania smithi n. sp. The subfamily Aulacopleurinae consists of only the genera Aulacopleura Hawle and Corda, 1847, and Songkania Chang, 1974, characterized by smooth, broad early growth stages and holaspides having expanded frontal and genal areas, covered with dense caecal pits, but usually very subdued tuberculate sculpture. The relationship of Aulacopleura? ranfordi and A.? reedi Přibyl, 1947, to the remainder of species assigned to the genus is ambiguous.

Porous electrodes-based double-layer supercapacitors: pore structure versus series resistance

2002 ◽  
Vol 108 (1-2) ◽  
pp. 153-162 ◽  
Author(s):  
A. Celzard ◽  
F. Collas ◽  
J.F. Marêché ◽  
G. Furdin ◽  
I. Rey
Keyword(s):  
Pore Structure ◽  
Double Layer ◽  
Series Resistance ◽  
Porous Electrodes ◽  
Structure Versus

Calcium Phosphate Open Porous Scaffold Bioceramics

2005 ◽  
Vol 284-286 ◽  
pp. 349-352 ◽  
Author(s):  
J.P. Gittings ◽  
I.G. Turner ◽  
A.W. Miles
Keyword(s):  
Calcium Phosphate ◽  
Pore Structure ◽  
Size Range ◽  
Porous Scaffold ◽  
Total Porosity ◽  
Porous Scaffolds ◽  
Structure Property ◽  
Wide Range ◽  
Microcrack Formation ◽  
Relationship Of

Calcium phosphate (CaP) ceramics possessing an interconnecting porosity network in the appropriate size range for vascularisation offer the possibility of providing a structural matrix for replacement of diseased or damaged bone. Such bioceramics must possess sufficient mechanical strength to avoid failure whilst offering a bioactive surface for bone regeneration. The objective of the current study was to produce a hydroxyapatite/tricalcium phosphate (HA/TCP) bioceramic that imitated the orientated trabecular structure found in cancellous bone. The structure-property relationship of these bioceramics was then analysed. It was hypothesised that the mechanical properties would be linked to the shape of the pore structure due to the orientation of the open porous scaffolds (OPS) produced. OPS bioceramics possessed an interconnected macroporosity network of 40-70% by volume with bending strengths of 0.30MPa ± 0.01MPa and apparent densities of 0.35g/cm3 ± 0.05g/cm3. Typically, pore sizes in the range of 150-300µm were produced. The fabrication of CaP OPS resulted in a wide range of macroporosity in the correct size range for osseointegration to occur. Elongating the pore structure did not affect the total porosity of the bioceramics. Strengths were low due to microcrack formation on sintering and not due to the shape of the pores present in the scaffold as initially hypothesised.

Sign in / Sign up

Export Citation Format

Share Document