Detaylı Arama

Bulunan: 55 Adet 0.039 sn
- Eklemek veya çıkarmak istediğiniz kriterleriniz için 'Dahil' / 'Hariç' seçeneğini kullanabilirsiniz. Sorgu satırları birbirine 'VE' bağlacı ile bağlıdır.
- İptal tuşuna basarak normal aramaya dönebilirsiniz.
Bulunan: 55 Adet 0.039 sn
Koleksiyon [4]
Tam Metin [1]
Yazar [20]
Yayın Türü [1]
Konu Başlıkları [20]
Yayın Tarihi [1]
Dergi Adı [20]
Yayıncı [17]
Dil [2]
Yazar Departmanı [1]
Use of vaterite and calcite in forming calcium phosphate cement scaffolds

Tas, A.C.

Conference Object | 2008 | Ceramic Engineering and Science Proceedings28 ( 9 ) , pp.135 - 150

A series of novel orthopedic calcium phosphate (CaP+CaCO3) cements have been developed. The common point in these cements was that they all utilized single-phase CaCO3 (calcite or vaterite) in their powder components. The major phase in the end-product of these cements was carbonated, Ca-deficient, apatitic calcium phosphate, together with some varying amounts of unreacted CaCO3. Calcite powders used were needle-like or acicular in shape, whereas the vaterite powders were monodisperse, and spherical or ellipsoidal in shape. A new method for synthesizing spheroidal vaterite powders has also been developed. Setting solutions for calci . . .te-based cement scaffolds were prepared by acid-base neutralization of concentrated H3PO 4 and NaOH. 0.5 M phosphate buffer solution was used to transform precipitated vaterite powders into CaP at 37° to 70°C. Setting solutions possessed pH values ranging from 3 to 7.4 at room temperature. Resultant cements were micro- (5 to 50 micron pores) and macroporous (200 to 700 micron pores). In the macroporous cements, total porosity was variable from 20 to 45%. Setting times of those cements were adjustable over the range of 12 to 25 minutes. Compressive strengths of these cements varied from 2 to 3 MPa, depending on their porosity. CaP+CaCO3 cements thus obtained had relatively high surface areas (30 to 85 m2/g) whose surfaces were covered with nanocrystallites similar in size to the nanoplatelets found in biological collagen-calcium phosphate composites. Cement scaffolds were characterized by XRD, FTIR, SEM, ICP-AES, surface area and compressive strength measurements Daha fazlası Daha az

Biocompatible polyurethane films incorporation with antibacterial silver loaded zeolites

Aksoy, EA | Kamisoglu, K | Akata, B | Bac, N | Hasirci, N

Conference Object | 2008 | TISSUE ENGINEERING PART A14 ( 5 ) , pp.813 - 813

A grouping genetic algorithm using linear linkage encoding for bin packing

Ülker, Ö. | Korkmaz, E.E. | Özcan, E.

Conference Object | 2008 | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)5199 LNCS , pp.1140 - 1149

Linear Linkage Encoding (LLE) is a representation method proposed for grouping problems. It has already been used in solving data clustering, graph coloring and timetabling problems based on multi-objective genetic algorithms. In this study, this novel encoding scheme is investigated on bin packing again using a genetic algorithm. Bin packing benchmark problem instances are used to compare the performance of traditional recombination operators and custom made LLE crossover operators which are hybridized with parametrized placement heuristics. The results denote that LLE is a viable candidate for bin packing problem whenever appropri . . .ate genetic operators are chosen. © 2008 Springer-Verlag Berlin Heidelberg Daha fazlası Daha az


Bayrak, F | Guneysu, T | Sevinc, D | Eroglu, E | Gemici, G | Mutlu, B | Degertekin, M

Conference Object | 2008 | ATHEROSCLEROSIS SUPPLEMENTS9 ( 1 ) , pp.165 - 165

The role of the clinical pharmacist on oncology service: pain management

Sevgen, D | Izzettin, FV | Turhal, S

Conference Object | 2008 | PHARMACY WORLD & SCIENCE30 ( 5 ) , pp.676 - 676

A genetic algorithm for generating improvised music

Özcan, E. | Erçal, T.

Conference Object | 2008 | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)4926 LNCS , pp.266 - 277

Genetic art is a recent art form generated by computers based on the genetic algorithms (GAs). In this paper, the components of a GA embedded into a genetic art tool named AMUSE are introduced. AMUSE is used to generate improvised melodies over a musical piece given a harmonic context. Population of melodies is evolved towards a better musical form based on a fitness function that evaluates ten different melodic and rhythmic features. Performance analysis of the GA based on a public evaluation shows that the objectives used by the fitness function are assembled properly and it is a successful artificial intelligence application. © 2 . . .008 Springer-Verlag Berlin Heidelberg Daha fazlası Daha az

Mesenchymal stem cell behaviour on topographical cues

Yucel, D | Kenar, H | Kose, GT | Hasirci, V

Conference Object | 2008 | TISSUE ENGINEERING PART A14 ( 5 ) , pp.878 - 878

Celiac crisis in two children: an unusual presentation of a common disease

Gulcan, M | Gulcu, D | Adal, E | Karalar, Y | Vitrinel, A

Conference Object | 2008 | ACTA PAEDIATRICA97 , pp.139 - 139

Congenital cytomegalovirus hepatitis in an infant treated with ganciclovir

Gulcan, M | Ergenekon, P | Vitrinel, A

Conference Object | 2008 | ACTA PAEDIATRICA97 , pp.136 - 137

Etiology in infants with cholestasis

Gulcan, M | Gulcu, D | Adal, E | Vitrinel, A

Conference Object | 2008 | ACTA PAEDIATRICA97 , pp.139 - 140


Agan, K | Bingol, CA | Saygi, S | Gurses, C | Kayrak, N | Arac, N | Midi, I

Conference Object | 2008 | EPILEPSIA49 , pp.29 - 29

Determination of four major flavonoids in the methanolic extract of Hypericum perforatum by HPTLC-densitometry

Kirmizibekmez, H | Atay, I | Yesilada, E

Conference Object | 2008 | PLANTA MEDICA74 ( 9 ) , pp.1103 - 1103

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