Browsing Química Bacharelado - Q by CNPq Subject "CIENCIAS EXATAS E DA TERRA::QUIMICA"
Now showing items 1-20 of 33
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Revisão da utilização de aditivos na eletrodeposição de Níquel: efeitos e aplicações
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 25/04/2022)Nickel electrodeposites are widely for industrial applications due to their characteristics such as: corrosion, wear and temperature resistence. It is mainly used for decorative coating, functional coating and electroforming. ... -
Um panorama sobre a gestão e gerenciamento de resíduos químicos em algumas Universidades Brasileiras
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 24/03/2023)The theme, chemical residues, has been much discussed in recent years, mainly due to the environmental issue, causing several institutions moving to solve problems with their passive and active residues, which in large ... -
Acidentes envolvendo incompatibilidade química
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 24/08/2023)Chemical incompatibility can be determined from the moment that different products, in contact with each other, generate some type of danger. Dangers can be emission of gases, excessive heat, fire or even explosions. When ... -
Eletromobilidade: estado atual dos veículos elétricos e das baterias de íons lítio (BILs)
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 08/12/2023)Electric vehicles are characterized by having an electricity-powered motor whose energy comes from a battery or a fuel cell. A variety of health and environmental problems are linked to the emission of greenhouse gases ... -
Dinâmica molecular no estudo do ponto de fusão
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 23/08/2023)The phenomenon of phase transitions is by itself an extremely intriguing phenomenon, and is a central object of investigation in several areas of science. Melting is a first-order phase transition that is present in many ... -
Determinação de elementos potencialmente tóxicos em amostras de ovos e carapaças de tartarugas visando monitoramento ambiental
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 01/09/2023)The development of society as we know it today requires investment in the exploitation of natural resources. A large part of Brazilian and international industry is dependent on raw materials such as iron, the most widely ... -
A química do solo: revisão bibliográfica e principais métodos de investigação agronômica
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 26/04/2022)Throughout human history, agriculture figures prominently among economic activities. The notion that productivity in the field is conditioned to environmental factors is as old as the activity itself, but what we now call ... -
Compósito a base de hidroxiapatita com ação antimicrobiana
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 19/09/2022)The development of materials that have antimicrobial properties are increasingly highlighted in the academic environment. In this way, the use of hydroxyapatite (HAp) as a support for semiconductors and natural compounds ... -
Modificação superficial de fosfatos de terras raras com funcionalização de ligantes orgânicos para aumento de eficiência luminescente na região do visível
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 19/09/2022)Introduction: Seeking a greater understanding of the interaction of light with matter, in order to develop new materials that present desirable properties and characteristics, this work sought to associate the unique ... -
Agrotóxicos: uma revisão sobre a história, sua classificação, usos e impactos ambientais com enfoque na agroecologia e na inovação aberta como alternativas sustentáveis
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 31/05/2021)Pesticides are mentioned with great frequency in the media, and scientific articles, presenting positive and negative points about them. This work aimed to review general information about pesticides, presenting some ... -
Máscaras e respiradores: uma revisão sobre suas características e seus impactos ambientais, e a influência da pandemia de COVID-19
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 17/09/2021)The COVID-19 pandemic brought an unprecedented use of masks and respirators for the healthcare workers and population. World Health Organization estimated the monthly needs of 129 billion masks. In order to prevent the ... -
Análise direta de fertilizantes minerais empregando fluorescência de raios-X
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 27/04/2022)The present work aimed to theoretically evaluate the use of x-ray fluorescence in the direct analysis of mineral fertilizers, ensuring effectiveness and quality for the research and development sector, in the laboratory ... -
Extração e separação do carotenoide luteína através da cromatografia líquida de alta eficiência
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 30/06/2021)Chemistry contributes to the production of numerous fundamental products for humanity, and currently, the production of these compounds takes environmental sustainability into account, that is, it aims to use techniques ... -
Propriedades eletrônicas de pigmentos naturais aplicados no setor de cosméticos
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 22/09/2022)Faced with the growing scenario of the consumer market, which have been looking for composed of ingredients that are less harmful to humans and the environment, the research on natural products has become increasingly ... -
Eletrodo impresso de carbono modificado com grafeno e quantum dots de cdte utilizado na determinação do bisfenol A
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 22/09/2022)Endocrine disruptors are synthetic or natural compounds that interfere with the normal functioning of the organism. These disruptions affect the alteration of the hormonal system and the metabolic processes that are regulated ... -
Controle de impurezas em insumos farmacêuticos ativos: Nitrosaminas
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 08/02/2024)The control of impurities in active pharmaceutical ingredients, particularly in the class of N-nitrosamines, is a highly relevant topic in the contemporary pharmaceutical industry as they belong to the "Cohort of Concern," ... -
Microscopia eletrônica de varredura: aspectos instrumentais
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 29/01/2024)Scanning electron microscopy (SEM) arose from the need to characterize materials on the nanometer scale, considering that until then, optical microscopes could only achieve resolutions of the order of micrometers. Since ... -
Oxidação foto-eletroquímica como rota alternativa para a produção de derivados da biomassa
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 29/06/2021)The need of fossil fuel replacement as energy source is urgent. Once the solar light has high incidence on Earth, it can be used as an alternative energy source to be directly converted into electric energy or to be stored ... -
Eletrodeposição de níquel aplicada à produção de ferramentas superabrasivas
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 15/01/2021)Superabrasive tools have been widely used in processes of modern material machining that are increasingly challenging. There are so many challenges that the superabrasive tools assume specific compositions designed exclusively ... -
Valorização da lignina - um panorama geral
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 08/07/2022)The urge to reduce greenhouse gas emissions, combined with the severe damage to the environment, such as the increase in the average world’s temperature, lead to incentives for research aimed at sustainable development. ...