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Degradação de forças dos elasticos intermaxilares ortodônticos sintéticos
(2011)
This study aimed to evaluate the force degradation of synthetic elastics over time using dynamic biomechanical tests in order to find clinical parameters of what size of elastic and frequency of exchange should be used in ...
Comparative assessment of miscibility and degradability on PET/PLA and PET/chitosan blends
(2015-07-29)
This work reports the synthesis and miscibility of PET/PLA and PET/chitosan blends as well as their degradation in real soil environment (6 months) and in accelerated weathering (1200 h). For this purpose, commercial ...
Influence Of Thermal Treatment Time On Structural And Physical Properties Of Polyimide Films At Beginning Of Carbonization
(ELSEVIER SCI LTDOXFORD, 2016)
The impact of land degradation on agricultural productivity a multi-period economic land use model; a case study of the Neguev settlement, Costa Rica
(CATIE, Turrialba (Costa Rica) Agricultural University Wageningen, Wageningen (Países Bajos) Ministerio de Agricultura y Ganadería, San José (Costa Rica), 1997)
Current land use practices will have to be sustainable in order to guarantee a sufficient level of agricultural production for future generations. In this study a sub-regional multi-period linear optimization model of ...
Aging behavior of commercial and synthesized dental Y-TZP ceramics
(2015-01-01)
Yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) is used for dental prosthodontics, however, it can present accelerated tetragonal to monoclinic phase transformation in oral environment. The aim of this study was ...
Estudo de degradação forçada dos agroquimicos azoxistrobim, amicarbazona e picloram, procedendo-se a elucidação estrutural dos produtos gerados pela técnica de RMN
(Universidade Federal de São CarlosUFSCarPrograma de Pós-graduação em Química (Mestrado Profissional)Câmpus São Carlos, 2019-02-27)
The growing consumerism of food by the population, both in Brazil and worldwide, leads to the intensified use of agrochemicals in large and small farms. In Brazil, according to Law 7802/1989, agrochemicals are materials ...
Avaliação da degradação térmica e fotooxidativa do ABS para fins de reciclagemEvaluation of thermal and photo-oxidative ABS degradation with recycling purposes
(Associação Brasileira de Polímeros, 2003)
Stability-indicating LC method for the determination of cephalothin in lyophilized powder for injection
(Royal Soc Chemistry, 2014-01-01)
A stability-indicating gradient reversed phase liquid chromatography (RP-LC) method has been developed for the quantitative determination of cephalothin (CET), an antimicrobial compound, in the presence of its impurities ...
Study of the effect of branching in degradation of polyethylenes obtained via metallocene catalyst
(SOC CHILENA QUIMICA, 2008-06)
Polyethylenes, homo and copolymers obtained via metallocene catalyst, were synthesized and used to study the effect of comonomer size and content in the main linear backbone polymer on its degradation. Homoethylene metallocene ...