Materials Literature
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Abstract A FeOx modified hydroxyapatite supported Au catalyst, Au/FeOx—Ca10(PO4)6 (OH)2, is prepared by a simple deposition—precipitation method.
Abstract Review: 220 refs.
Abstract A microporous CaCu3Ti4O12 matrix is obtained from an aqueous solution containing Ti(OiPr)4, HNO3, Ca(NO3)2, and Cu(NO3)2 (1.
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The contribution describes the experimental results obtained from the combined loading of the specimens in the field of high-cycle fatigue. Those specimens were manufactured from common construction steel 11523.The following experiments were performed: The first set of the specimen was loaded by the alternating torque…
This contribution deals with research results focused on analysis of renovative layers applied by thermal spraying. There were two types of sprayed wires used - formerly used S-NiCro 80/20 and new cored wire marked DURMAT. Micro hardness of thermally sprayed coatings was measured by Vickers indenter, wear resistance o…
Abstract not provided.
Ing. Jan Smrž, CSc., belongs to the generation of phytopathologists who substantially contributed to the development of applied plant protection, as well as to phytopathological research in the first decades after the war.In 1958 he finished his studies at the Agricultural University in Brno, with specialisation in pl…
The generalized connectivity of a graph, which was introduced recently by Chartrand et al., is a generalization of the concept of vertex connectivity. Let $S$ be a nonempty set of vertices of $G$, a collection $\{T_1,T_2,...,T_r\}$ of trees in $G$ is said to be internally disjoint trees connecting $S$ if $E(T_i)\cap E…
Στην παρούσα διπλωματκή ερευνώνται τα εγγενή χαρακτηριστικά συμπιεστότητας αργίλων στο συμπιεσόμετρο. Πραγματοποιήθηκαν δοκιμές σε αναζυμωμένα υλικά απο το Λονδόνο (LondonClay) τη Ζάκυνθο και τη Λαμία και επεξεργασία αποτελεσμάτων σε υλικά απο το Μαρούσι,το Μοσχάτο και σε μάργα απο τηνΚόρινθο. Γίνονται οιδοκιμέςκατάτα…
Έγινε σύγκριση της ευστάθειας μετώπου, τόσο για ανυσποστήρικτο, όσο και για ενισχυμένο με αγκύρια Fibreglass μέτωπο, και μέσω της διαμόρφωσης κατάλληλου συντελεστή, κατέστη δυνατή η επιλογή του οικονομικότερου καννάβου, ανάλογα με τα δεδομένα χαρακτηριστικά του εδάφους. Παράλληλα με τα παραπάνω, διαμορφώθηκε μια σχετι…
Abstract : We found direct evidence that a single-crystal-like aragonite platelet is essentially assembled with aragonite nanoparticles. The aragonite nanoparticles are readily oriented and assembled into pseudo-single-crystal aragonite platelets via screw dislocation and amorphous aggregation, which are two dominant…
The objective of the project is for BNL to synthesize arid characterize new O2 reduction catalysts with enhanced activity and ultra-low Pt loading and to improve the stability of Pt at high positive potentials. These new catalysts will be tested to determine their activity and stability under potential cycling conditi…
Chapter 1: Introduction to carbon nanotubes 1.1.Overview and objective guiding me on this journey through the vast world of nanotechnology.As is expected, research can often be frustrating and tedious, and sometimes it seems like the stars must align for our experiments to work properly.Mohan was always there to encou…
North Carolina State University Theses Materials Science and Engineering.
Gold have been used as an electrode materials having a good mechanical flexibility as well as electrical conductivity, however the stretchability of the gold on a flexible substrate is poor because of its small elastic modulus. To overcome this mechanical inferiority, the reinforcing gold is necessary for the stretcha…
The vitrification and crystallization of glasses in the system BaO(PbO)-B2O3-Al2O3-TiO2, containing (mol %): BaO (24.6-28.1 ), PbO (2.8-3.2), B2O3 (7.6-24.0), Al2O3 (15.9-25.5), TiO2 (39.1-41.1) were investigated. The batch compositions of different oxide molar ratios were fused in an electric furnace in a platinum cr…
Recently found topological insulators (TIs) have been attracting much attention of scientists in various disciplines.
본 연구에서는 hexafluoropropylene oxide(HFPO)의 개환중합 및 메틸에스테르화 반응을 통하여 CH3 말 단 관능기를 가진 perfluoropolyether(PFPE) 중간체(TP-COOCH3)를 합성하고, 이를 친전자성 불소치환 직접플루 오르화법을 통하여 CF3 말단 관능기를 가진 PFPE 중간체(TP-COOCF3)를 합성하였다. 또한 반응조건인 용매의 양, 혼합가스 불소 부분압 및 반응시간이 TP-COOCF3 합성에 미치는 영향에 대하여 고찰하였다. 실험결과, 플루오르화 반응은 온화한 조건에서 장시간 진행하는 것이 부반응을 최소화하여 전환율을…
Uma alternativa para as análises tradicionais do biodiesel e misturas BX, como a cromatografia, a espectroscopia e a ressonância magnética nuclear, é a análise por meio de um transdutor de índice de refração a fibra ótica, como uma LPG. Entretanto, como os índices de refração do biodiesel e do óleo diesel são próximos…