34 documents found, page 1 of 4
Ethylene removal by Ag-based ZSM-5 adsorbents for the preservation of climacter...
Ferreira, R.; Lopes, H.; Lourenço, J. P.; Silva, J. M.; João, I. M.; Ribeiro, M. F.; Fernandes, A.Ethylene removal is crucial for fruits and vegetables preservation because even a very low concentration (<0.1ppm) can induce ripening during storage and transportation. Ag+ exchanged ZSM-5 zeolites were investigated as adsorbents for the efficient removal of ethylene. Two ZSM-5 materials (Si/Al ratios of 15 and 40), with different amounts of Ag (up to 6 % by weight) and two compensating cations, Na+ and H+, we...
Menthol-based deep eutectic systems as antimicrobial and anti-inflammatory agen...
Oliveira, F.; Silva, Eduardo Alexandre Pereira; Matias, A.; Silva, J. M.; Reis, R. L.; Duarte, A. R. C.Effective antimicrobial treatment has been identified as a serious and unmet medical need. Herein, we present a strategy based on deep eutectic systems (DES) to overcome current limitations, answering the need not only to effectively kill bacterial agents but also to avoid their adhesion and proliferation, which is associated with biofilm formation and have a crucial impact on bacterial virulence. To achieve su...
Effect of variable amplitude block loading on fatigue crack growth
Neto, D. M.; Borges, M. F.; Silva, J. M.; Antunes, F. V.The objective is to study the effect of load blocks on fatigue crack propagation. To carry out this study, the finite element program DD3IMP will be used, with the fatigue crack propagation being controlled by the value of the plastic deformation at the end of the crack. The material used was the Ti6Al4V alloy obtained by the selective laser fusion manufacturing process. Regarding the studied load patterns, two...
Ethylene removal with metals-based zeolites for climacteric fruits preservation
Ferreira, R.; Lopes, H.; Fernandes, A.; Lourenço, João P.; Silva, J. M.; João, I. M.; Ribeiro, FilipaNowadays, there is a high importance of consuming fresh fruits and vegetables (F&V) in a well-balanced diet. One main issue concerning fruit preservation is ethylene molecule, a natural plant hormone that is responsible for fruits ripening and senescence. Thus, its removal from transportation and cold storage chambers is essential for industrial companies to prevent deterioration or spoilage of F&V and extend t...
Cellular automata model for citrus variegated chlorosis
Martins, M. L.; Ceotto, G.; Alves, S. G.; Bufon, C. C. B.; Silva, J. M.; Laranjeira, F. F.A cellular automata model is proposed to analyze the progress of citrus variegated chlorosis epidemics in São Paulo orange plantations. In this model epidemiological and environmental features, such as motility of sharpshooter vectors that perform Lévy flights, level of plant hydric and nutritional stress, and seasonal climatic effects, are included. The observed epidemic data were quantitatively reproduced by ...
Natural deep eutectic systems as alternative nontoxic cryoprotective agents
Castro, V.; Craveiro, R.; Silva, J. M.; Reis, R. L.; Paiva, A.; Duarte, A. R. C.Natural deep eutectic systems (NADES) are mostly composed of natural primary metabolites such as sugars, sugar alcohols, organic acids, amino acids and amines. These simple molecules have been identified in animals living in environments with extreme temperature amplitudes, being responsible for their survival at negative temperatures during winter. Herein, we report for the first time the use of NADES based on...
Gema axilar e periciclo envolvidos no processo de espessamento nodal do rizófor...
Appezzato-da-Glória, B.; Silva, J. M.; Soares, M. K.M.; Soares, A. N.; Martins, A. R. [UNESP]Made available in DSpace on 2018-12-11T16:39:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-01-01. Added 1 bitstream(s) on 2019-10-09T18:28:19Z : No. of bitstreams: 1 S1519-69842015000400718.pdf: 9021491 bytes, checksum: 9bc65b35837969245fb7b4b79f8d2333 (MD5); The species of the genus Smilax, popularly known as sarsaparilla, are widely used in folk medicine due to the antirheumatic properties of its ...
Chandrasekhar's dynamical friction and non-extensive statistics
Silva, J. M.; Lima, J. A.S.; De Souza, R. E.; Del Popolo, A.; Le Delliou, Morgan [UNESP]; Lee, Xi-GuoMade available in DSpace on 2018-12-11T17:03:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-05-09; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); The motion of a point like object of mass M passing through the background potential of massive collisionless particles (m ≤ M) suffers a steady deceleration named dynamic...
Definition of requirements to pursue a Servitization Strategy in SME: the case ...
Silva, J. M.; Simões, J. R.The introduction of advanced services in a servitization business model is under close scrutiny for a SME supplying advanced technologies. The proposed conceptual model is based on three cornerstones, i.e. strategy, organizational structure, ICT requirements. It was developed and checked by using data from semi-structured interviews, unstructured observations and documentation surveying. The outcomes significan...
Design of functional therapeutic deep eutectic solvents based on choline chlori...
Silva, J. M.; Reis, R. L.; Paiva, A.; Duarte, A. R. C.In this work, we report the preparation of novel therapeutic deep eutectic solvents (THEDES) based on choline chloride (CC) and ascorbic acid (AA), in which dexamethasone (DEX) was successfully solubilized. THEDES were synthesized and characterized for thermal behavior and polarized optic microscopy to confirm the formation of a eutectic mixture. The solubility profile of DEX solubilized in THEDES was greatly i...