Teodolíto Guillén-Girón, Arne Ohrndorf, Hans‐Jürgen Christ, Katrin Hagemann, Andreas Bührig‐Polaczek, Ulrich Krupp,
... Cellular TiAl6Nb7 to be Used for Biomedical Applications† Teodolito Guillén, Corresponding Author Teodolito Guillén [email protected] Institut für Werkstofftechnik Universität Siegen ... Osnabrück, GermanySearch for more papers by this author Teodolito Guillén, Corresponding Author Teodolito Guillén [email protected] Institut für Werkstofftechnik Universität Siegen ...
Tópico(s): Additive Manufacturing Materials and Processes
2009 - Wiley | Advanced Engineering Materials
Juan Jiménez, Yandra Katiuscia Moreira de Castro,
... Jordan. Mediante un solarímetro montado ecuatorialmente sobre un teodolito modificado se han realizado medidas de la radiación ...
Tópico(s): Solar Thermal and Photovoltaic Systems
1982 - Elsevier BV | Solar Energy

Anna Roosevelt, John E. Douglas, Anderson Marcio Amaral, Maura Imazio da Silveira, Carlos Barbosa, Mauro Barreto, Wanderley Souza da Silva, Linda J. Brown,
... os barrancos, e mapearam a topografa com um teodolito a laser. Palavras-chave: Paleoíndios, terra frme, arqueologia ...
Tópico(s): Pleistocene-Era Hominins and Archaeology
2009 - UNIVERSIDADE FEDERAL DO PIAUÍ | Amazônica - Revista de Antropologia
Teodolíto Guillén-Girón, Qinghe Zhang, Gianluca Tozzi, Arne Ohrndorf, Hans‐Jürgen Christ, Jie Tong,
Compressive behaviour of bovine cancellous bone and three open-cell metallic foams (AlSi7Mg (30 ppi and 45 ppi); CuSn12Ni2 (30 ppi)) has been studied using mechanical testing, micro-focus computed tomography and finite element modelling. Whilst the morphological parameters of the foams and the bone appear to be similar, the mechanical properties vary significantly between the foams and the bone. Finite element models were built from the CT images of the samples and multi-linear constitutive relations ...
Tópico(s): Titanium Alloys Microstructure and Properties
2011 - Elsevier BV | Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials
Miguel Araya, Ignacio López-Gómez, Nicolette K. Chamberlain-Simon, Jose Leon Salazar, Teodolíto Guillén-Girón, Juan Sebastián Corrales-Cordero, Olga Sánchez-Brenes,
This study focuses on the characterization of additive manufacturing technology based on composite filament fabrication (CFF). CFF utilizes a similar method of layer by layer printing as fused filament fabrication but is also capable of reinforcing parts with layers of various continuous fibers into a polymer matrix. Due to the orthotropic characteristics of additive manufacturing based on fused filament fabrication, 3D printed parts may present different mechanical behavior under different orientations ...
Tópico(s): Innovations in Concrete and Construction Materials
2018 - Elsevier BV | Additive manufacturing

Andrea Mariela Araya‐Sibaja, José Roberto Vega‐Baudrit, Teodolíto Guillén-Girón, Mirtha Navarro-Hoyos, Sílvia L. Cuffini,
Lovastatin (LOV) is a drug used to treat hypercholesterolemia. Recent studies have identified its antioxidant effects and potential use in the treatment of some types of cancer. However, the low bioavailability related to its poor water solubility limits its use in solid oral dosage forms. Therefore, to improve the solubility of LOV three eutectic systems of LOV with the carboxylic acids benzoic (BEN), salicylic (SAL) and cinnamic (CIN) were obtained. Both binary phase and Tammann diagrams were constructed ...
Tópico(s): Analytical Chemistry and Chromatography
2019 - Multidisciplinary Digital Publishing Institute | Pharmaceutics
Miguel Araya, Matias Jaskari, Timo Rautio, Teodolíto Guillén-Girón, Antti Järvenpää,
In the field of additive manufacturing, the design and fabrication of lattice structures have garnered substantial attention, particularly for their potential in advanced material applications. This study focuses on the mechanical properties of titanium alloy Ti64 lattice structures fabricated by Laser Powder Bed Fusion. It examines the mechanical features of two structure types, TPMS Gyroid and Stochastic Voronoi, analyzing their design and fabrication interplay. To evaluate mechanical properties, ...
Tópico(s): Additive Manufacturing and 3D Printing Technologies
2023 - Elsevier BV | Journal of Science Advanced Materials and Devices

... sistemas de medição polar à base de vídeo teodolitos e em sistemas de medição taqueométricos sem o ...
Tópico(s): Advanced Measurement and Detection Methods
2009 - UNIVERSIDADE FEDERAL DE UBERLÂNDIA | Revista Brasileira de Cartografia

Andrea Mariela Araya‐Sibaja, Carlos Eduardo Maduro de Campos, Cinira Fandaruff, José Roberto Vega‐Baudrit, Teodolíto Guillén-Girón, Mirtha Navarro-Hoyos, Sílvia L. Cuffini,
Irbesartan (IBS) is a tetrazole derivative and antihypertensive drug that has two interconvertible structures, 1H- and 2H-tautomers. The difference between them lies in the protonation of the tetrazole ring. In the solid-state, both tautomers can be isolated as crystal forms A (1H-tautomer) and B (2H-tautomer). Studies have reported that IBS is a polymorphic system and its forms A and B are related monotropically. These reports indicate form B as the most stable and less soluble form. Therefore, the ...
Tópico(s): X-ray Diffraction in Crystallography
2019 - Elsevier BV | Journal of Pharmaceutical Analysis
Lucía Magnin, Enrique Terranova, Virginia Lynch,
... de artefactos registrados mediante GPS no diferencial y teodolito electrónico. Se recolectaron 2575 artefactos líticos entre núcleos, ...
Tópico(s): Archaeology and ancient environmental studies
2020 - National University of La Plata | Revista del Museo de La Plata
Ulrich Krupp, Arne Ohrndorf, Teodolíto Guillén-Girón, H.‐J. Christ, S. Demiray, Wilfried Becker, Jörg Hohe,
Abstract The present paper summarizes interdisciplinary experimental and theoretical research on the mechanical behavior of open‐cell AlSi7Mg and α brass sponges, particularly focusing on the fatigue behavior under isothermal test conditions and under periodically fluctuating temperature (thermomechanical fatigue TMF), the latter carried out in a self‐designed temperature chamber. Monotonic tensile and compression tests were performed on these metal sponges, taking into account variation in the homogeneity ...
Tópico(s): Natural Fiber Reinforced Composites
2006 - Wiley | Advanced Engineering Materials

Danyell Gomes Silva Santos, Marcos Vinícios Rodrigues, Jeimisson Aron Da Costa Alves, Vitor Hugo Moraes, Gabriel Greco Guimarães Cardoso,
... determinação da área; o levantamento por caminhamento usando teodolito digital e analógico, processando os dados de distância ... estadimetria; e o levantamento por irradiação utilizando também teodolito digital e analógico, procedendo leituras estadimétricas. Os dados ...
Tópico(s): Geography and Environmental Studies
2013 - UNIVERSIDADE TECNOLÓGICA FEDERAL DO PARANÁ | Revista Brasileira de Geomática

Marcus Granato, Luiz Roberto Martins de Miranda,
... Os estudos que resultaram na restauração de um teodolito da coleção do MAST iniciaram-se a partir ...
Tópico(s): Science and Science Education
2011 - Universidade de São Paulo, Museu Paulista | Anais do Museu Paulista História e Cultura Material
José Antonio Rodríguez Esteban,
... los condicionantes del desierto en la visibilidad de teodolitos y miras, la existencia de inmensas llanuras y ...
Tópico(s): African history and culture studies
2011 - Unité Mixte de Recherche 8504 Géographie-cités | Cybergeo

Andrea Mariela Araya‐Sibaja, Mariola Urgellés, Felipe Vásquez-Castro, Felipe Vargas-Huertas, José Roberto Vega‐Baudrit, Teodolíto Guillén-Girón, Mirtha Navarro-Hoyos, Sílvia L. Cuffini,
The experimental conditions necessary for stabilising irbesartan (IBS) tautomers in solution and selectively obtaining the desmotropic crystal forms are presented herein. 1H and 2H tautomers were stabilized in specific solution conditions and the 2H-tetrazole⋯imidazole interaction was confirmed by solution-state NMR. The results showed that highly polar and polarisable solvents (higher values of the electrostatic factor (EF)) lead to the crystallisation of IBS form B. Furthermore, the variations of ...
Tópico(s): Crystallization and Solubility Studies
2019 - Royal Society of Chemistry | RSC Advances
Teodolíto Guillén-Girón, Arne Ohrndorf, Gianluca Tozzi, Jie Tong, Hans‐Jürgen Christ,
Abstract In this study the compressive cyclic behavior of bovine cancellous bone and three open‐cell metallic foams including AlSi7Mg foams (30 and 45 ppi) and CuSn12Ni2 foam (30 ppi) has been investigated. Multi‐step fatigue tests are carried out to study the deformation behavior under increasing compressive cyclic stresses. Short multi‐step tests, with steps of 300–500 cycles, are used to identify the cyclic yield stress ( σ cy ) and the stress at failure ( σ fail ). The residual strain accumulation, or ...
Tópico(s): High-Velocity Impact and Material Behavior
2011 - Wiley | Advanced Engineering Materials
Gianluca Tozzi, Qing-Hang Zhang, Colin Lupton, Jie Tong, Teodolíto Guillén-Girón, Arne Ohrndorf, Hans‐Jürgen Christ,
An open-cell metallic foam was employed as an analogue material for human trabecular bone to interface with polymethyl methacrylate (PMMA) bone cement to produce composite foam-cement interface specimens. The stress-displacement curves of the specimens were obtained experimentally under tension, shear, mixed tension and shear (mixed-mode), and step-wise compression loadings. In addition, under step-wise compression, an image-guided failure assessment (IGFA) was used to monitor the evolution of micro- ...
Tópico(s): Orthopedic Infections and Treatments
2013 - Springer Science+Business Media | Journal of Materials Science Materials in Medicine
Andrea Mariela Araya‐Sibaja, Cinira Fandaruff, Krissia Wilhelm-Romero, José Roberto Vega‐Baudrit, Teodolíto Guillén-Girón, Mirtha Navarro-Hoyos,
Primarily composed of organic molecules, pharmaceutical materials, including drugs and excipients, frequently exhibit physicochemical properties that can affect the formulation, manufacturing and packing processes as well as product performance and safety. In recent years, researchers have intensively developed Crystal Engineering (CE) in an effort to reinvent bioactive molecules with well-known, approved pharmacological effects. In general, CE aims to improve the physicochemical properties without ...
Tópico(s): Drug Solubulity and Delivery Systems
2019 - Bentham Science Publishers | Mini-Reviews in Organic Chemistry
Laura Rojas-Rojas, Gianluca Tozzi, Teodolíto Guillén-Girón,
This study presents a polymeric scaffold designed and manufactured to mimic the structure and mechanical compressive characteristics of trabecular bone. The morphological parameters and mechanical behavior of the scaffold were studied and compared with trabecular bone from bovine iliac crest. Its mechanical properties, such as modulus of elasticity and yield strength, were studied under a three-step monotonic compressive test. Results showed that the elastic modulus of the scaffold was 329 MPa, ...
Tópico(s): Dental Implant Techniques and Outcomes
2023 - Multidisciplinary Digital Publishing Institute | Life

Maria Helena de Andrade, Rannyelly Rodrigues de Oliveira, Ana Carolina Costa Pereira,
... Histórico para Estudos Iniciais de Trigonometria: Apresentando o Teodolito” discorre sobre uma estratégia de ensino vivenciada no ... aula. A princípio, foi escolhida uma réplica do teodolito primitivo como forma de incentivá-los a prática ... atividades propostas com dinamismo e empolgação. Relacionaram o teodolito com o cálculo da tangente. Todavia, sentiram dificuldade ... a prática em sala de aula utilizando o teodolito oportunizou uma opção de mudança no ato de ...
Tópico(s): History of Education Research in Brazil
2018 - UNIVERSIDADE ESTADUAL DO CEARÁ | Boletim Cearense de Educação e História da Matemática
... na implementacao de uma base de classificacao de teodolitos e estacoes totais na Universidade Federal do Parana. ... para a deteccao dos erros grosseiros. Clasificacion de Teodolitos y Estaciones Totales en la UFPR Resumen El ... implantacion de una base de clasificacion de los teodolitos y de las estaciones totales en la Universidade ...
Tópico(s): Geography and Environmental Studies
1999 - UNIVERSIDADE FEDERAL DO PARANÁ | Boletim de Ciências Geodésicas

Emily de Vasconcelos Santos, Jaqueline Lixandrão Santos,
... e agosto de 2015. Com auxílio do instrumento teodolito e dos conceitos trigonométricos, os alunos conseguiram medir ... uso de diversos instrumentos de medidas, como o teodolito, nas aulas de Matemática do Ensino Médio. Eles ... a ação docente.Palavras-chave: Altura. Trigonometria. Geometria. Teodolito.AbstractThis work reports a practical activity developed with ...
Tópico(s): Diverse scientific research topics
2019 - | Jornal Internacional de Estudos em Educação Matemática

Cesar Rogério Cabral, Markus Hasenack,
... formas dependendo dos objetivos determinados. A coleção de teodolitos do Museu de Topografia e Geodésia Professor Ênio ... ano de produção. Também foram destacados dois dos teodolitos do acervo para demonstrar a carga histórica envolvida ... sobre a história das empresas, do desenvolvimento dos teodolitos, dos técnicos e pesquisadores envolvidos no processo e ...
Tópico(s): Geography and Environmental Studies
2023 - UNIVERSIDADE FEDERAL DO ESTADO DO RIO DE JANEIRO | Museologia e Patrimônio

Maria Madalena Santos Da Silva, Pedro Luís Faggion, Luis Augusto Köenig Veiga,
... metodologia para classificação angular (vertical e horizontal) de teodolitos e estações totais. A metodologia baseou-se na ... desenvolvidas, inicialmente transformou-se a luneta de um teodolito óptico em um colimador. Também foram desenvolvidos seus ...
Tópico(s): Academic Research in Diverse Fields
2010 - UNIVERSIDADE FEDERAL DO PARANÁ | Boletim de Ciências Geodésicas

Giselle Anna Oliveira Silva, Samantha da Silva Vargas, Verônica Ferreira dos Santos, Josivaldo Gonçalves dos Santos, Kelling Cabral Souto, Denise Leal de Castro, Karla Gomes de Alencar Pinto, V L B de Jesus,
... aplicação da atividade “Medindo com o Auxilio do Teodolito”. Ela consistiu de uma prática em que os ... a altura do prédio da escola, utilizando um teodolito confeccionado com materiais de baixo custo. O experimento ...
Tópico(s): Diverse scientific research topics
2017 - | Cadernos do Aplicação

Andreia Belter, Júlia Gabriela Petrazzini da Silva, Kelly Gabriela Poersch, Julhane Alice Thomas Schulz, Elizangela Weber,
... desenvolvimento desta prática de ensino, utilizou-se um Teodolito rudimentar para coletar informações, que foram tratadas matematicamente ... problema em questão. A proposta do uso do Teodolito no ensino da Trigonometria foi eficaz perante os ...
Tópico(s): Diverse scientific research topics
2020 - UNIVERSIDADE FEDERAL DA FRONTEIRA SUL | Revista Insignare Scientia - RIS

Geomax Lopes de Brito, Ricardo Sousa Santos, Sinval de Oliveira,
... diretriz foi expressa como: em que perspectivas o teodolito caseiro contribui com a aprendizagem de razões trigonométricas ... apontam para a participação ativa dos alunos; os teodolitos caseiros utilizados cumpriram a função de Material Didático ...
Tópico(s): Growth and nutrition in plants
2024 - Sociedade Brasileira de Educação Matemática | Educação Matemática em Revista

Fagner Lopes Guedes, Gabriela Brito de Souza, Milena Brito SOUZA, Nayra de Lima Ferreira, Melissa Oliveira e Silva, Antônio Pereira Júnior,
... foi analisar qualitativamente e quantitativamente o uso do teodolito como ferramenta para a mensuração de angulações em ... metros. Logo, verifica-se que o instrumento óptico teodolito utilizado por engenheiros, agrimensores, topógrafos e inveterados navegadores ...
Tópico(s): Geography and Environmental Studies
2021 - | Multidisciplinary Science Journal

Maria Mailâne Vieira da Silva, Deisiane Linhares Lima, Maria José Araújo Souza,
... Durante as atividades ocorreu à construção de um teodolito, instrumento usado na medição de distâncias inacessíveis, neste ...
Tópico(s): Rural and Ethnic Education
2018 - UNIVERSIDADE ESTADUAL DO CEARÁ | Boletim Cearense de Educação e História da Matemática

Maria Mailâne Vieira da Silva, Deisiane Linhares Lima, Maria José Araújo Souza,
... Durante as atividades ocorreu a construcao de um teodolito, instrumento usado na medicao de distâncias inacessiveis, neste ...
Tópico(s): Education and Digital Technologies
2018 - UNIVERSIDADE ESTADUAL DO CEARÁ | Boletim Cearense de Educação e História da Matemática