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Matériaux intelligents en NiTi riche en Ti pour les applications biomédicales

Matériaux intelligents en NiTi riche en Ti pour les applications biomédicales

Niharika Dalbehera; Ajit Behera

Editions Notre Savoir
2020
nidottu
Le mat riau intelligent NiTi riche en titane pr sente une excellente combinaison de propri t s telles que l'effet de m moire de forme et la pseudo lasticit , ce qui en fait un candidat parfait pour diverses applications biom dicales telles que les stents pour applications cardiovasculaires, les appareils dentaires, les implants, les valves de pression, etc. Ces alliages fonctionnels pour implants ont le potentiel d' tre activ s la temp rature du corps et peuvent r sister aux d formations. Ces alliages d'implants fonctionnels peuvent tre activ s la temp rature du corps et r sister la torsion. Tous ces les applications qui requi rent de telles propri t s ph nom nales font l'objet d'un int r t actif de la part de la recherche. Les travaux suivants englobent l'ensemble du m canisme de l'effet de m moire de forme et de la pseudo- lasticit , ainsi que la multitude d'applications biom dicales de l'alliage NiTi. Dans cette tude, les chantillons de NiTi riche en Ti sont fabriqu s par m tallurgie des poudres et des caract risations sont effectu es pour comprendre les propri t s de l'alliage. Une discussion d taill e a t faite sur la morphologie de la surface, l' volution de la microstructure, la compr hension des phases pr sentes, les valeurs de duret , la transformation r versible des phases et le comportement la corrosion des chantillons de NiTi riche en Ti.
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Materiali intelligenti NiTi Ti-rich per applicazioni biomediche

Materiali intelligenti NiTi Ti-rich per applicazioni biomediche

Niharika Dalbehera; Ajit Behera

Edizioni Sapienza
2020
nidottu
Il materiale intelligente NiTi ricco di titanio ha un'eccellente combinazione di propriet come l'effetto memoria di forma e la pseudoelasticit che lo rende un candidato perfetto per varie applicazioni biomediche come stent per applicazioni cardiovascolari, apparecchi ortodontici, impianti, valvole a pressione, ecc. Queste leghe funzionali per impianti hanno il potenziale per essere attivate a temperatura corporea e possono resistere alle piegature. Tutti quelli applicazioni che richiedono tali propriet fenomenali sono l'obiettivo di un attivo interesse di ricerca. Il lavoro che segue comprende l'intero meccanismo dell'effetto memoria di forma e della pseudoelasticit , cos come la moltitudine di applicazioni biomediche della lega NiTi. In questo studio, i campioni NiTi ricchi di Ti-rich sono fabbricati attraverso la via della metallurgia delle polveri e le caratterizzazioni sono effettuate per comprendere le propriet della lega. Una discussione dettagliata stata fatta sulla morfologia della superficie, l'evoluzione della microstruttura, la comprensione delle fasi presenti, i valori di durezza, la trasformazione reversibile delle fasi e il comportamento alla corrosione dei campioni NiTi Ti-rich.
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Ti-rich NiTi smart materialy do zastosowań biomedycznych

Ti-rich NiTi smart materialy do zastosowań biomedycznych

Niharika Dalbehera; Ajit Behera

Wydawnictwo Nasza Wiedza
2020
nidottu
Bogaty w tytan inteligentny material NiTi posiada doskonale polączenie wlaściwości takich jak efekt pamięci ksztaltu i pseudoelastyczności, co czyni go idealnym kandydatem do r żnych zastosowań biomedycznych, takich jak stenty do zastosowań sercowo-naczyniowych, aparaty dentystyczne, implanty, zawory uciskowe itp. Te funkcjonalne stopy implant w mają możliwośc aktywacji w temperaturze ciala i są odporne na zalamania. Wszystkie te stopy Aplikacje, kt re wymagają tak fenomenalnych wlaściwości, są celem aktywnych zainteresowań badawczych. Poniższa praca obejmuje caly mechanizm efektu pamięci ksztaltu i pseudoelastyczności, a także wiele zastosowań biomedycznych stopu NiTi. W tym badaniu, bogatych pr bek NiTi są produkowane przez szlak metalurgii proszk w i charakterystyki są prowadzone w celu zrozumienia wlaściwości stopu. Szczeg lowo om wiono morfologię powierzchni, ewolucję mikrostruktury, zrozumienie obecnych faz, wartości twardości, odwracalne przemiany faz i zachowanie korozyjne bogatych w Ti-Ti pr bek NiTi.
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Materiais inteligentes de NiTi Ti-rich para aplicação biomédica

Materiais inteligentes de NiTi Ti-rich para aplicação biomédica

Niharika Dalbehera; Ajit Behera

Edicoes Nosso Conhecimento
2020
nidottu
O material inteligente NiTi rico em tit nio tem uma excelente combina o de propriedades tais como efeito de mem ria de forma e pseudoelasticidade que o torna um candidato perfeito para v rias aplica es biom dicas tais como stents para aplica o cardiovascular, aparelhos dent rios, implantes, v lvulas de press o, etc. Estas ligas funcionais de implantes t m o potencial de serem activadas temperatura corporal e podem resistir a dobras. Todas estas ligas aplica es que exigem tais propriedades fenomenais s o o objectivo do interesse activo da investiga o. O trabalho seguinte abrange todo o mecanismo do efeito de mem ria de forma e pseudo-elasticidade, bem como a multiplicidade de aplica es biom dicas da liga NiTi. Neste estudo, os esp cimes de NiTi ricos em Ti-rich s o fabricados por via da metalurgia do p e s o efectuadas caracteriza es para compreender as propriedades da liga. Foi feita uma discuss o detalhada sobre a morfologia da superf cie, a evolu o da microestrutura, a compreens o das fases presentes, os valores de dureza, a transforma o revers vel das fases e o comportamento de corros o das amostras de NiTi Ti-Rico.
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Face Bow

Face Bow

Siddharth Narote; Ajit Jankar

LAP Lambert Academic Publishing
2020
pokkari
For fabrication of any prosthesis on articulator mandibular movements have to be simulated on it. To simulate the mandibular movements on an articulator various jaw relations have to be recorded and transferred to it. Face bow transfer helps to transfer the spatial relationships of the jaw to various reference points. The purpose of this book is to promote the use of the face bow for fabrication of prosthesis which is in harmony with the stomatognathic system.
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Improved Parametric and Nonparametric Classification Techniques

Improved Parametric and Nonparametric Classification Techniques

MD Mahabubur Rahman; Ajit Kumar Majumder

LAP Lambert Academic Publishing
2020
pokkari
This text considers different parametric and nonparametric classification techniques to classify objects, and make a comparative study among these techniques. In most of the situations, classification techniques give few misclassifications under large samples as well as under the normal populations. If the data set comes from the non-normal populations, then we apply Box-Cox transformation to transform this data set into near normal. Hence, we investigate the effect of Box-Cox transformation and see that Box-Cox transformed data generates better discrimination and classification techniques. Also if the sample size is small, then we use the Bootstrap approach for classifying objects, and investigate that the Bootstrap classification technique used in this analysis performs better than the usual techniques of small samples. There is no unique classification technique that is suitable for all the situations, also examines that nonparametric classification techniques perform better than the parametric classification techniques, whereas the Neural Network classification technique gives optimum solutions among the nonparametric classification techniques.
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Supplementation of Potassium on Pearlspot and Tomato in Aquaponics

Supplementation of Potassium on Pearlspot and Tomato in Aquaponics

Roshan Maria Peter; Ajit Kumar Verma

Lap Lambert Academic Publishing
2020
pokkari
Component ratio, determination of the optimum hydraulic loading rate (HLR), and potassium (K+) dosage are important factors for the best yield of the tomato (Solanum lycopersicum var. ceraciformes) plant and pearlspot (Etroplus suratensis) in an aquaponic system. Considering the overall fish growth, health monitoring parameters, plant growth, and water quality parameters, the potassium (K+) dose of 80 mg l-1was found to be the most effective for tomato yield compared to other treatments. Experiments displayed that fish stocking density (0.86 kg m-3), Hydraulic Loading Rate (3.0 m day-1) and K+ dosage (80 mg l-1) showed a positive effect on Pearlspot and tomato crops.
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