19 documents found, page 1 of 2
Charge-Pump Circuit in 65nm CMOS for Neural Stimulation on Deep-Brain Stimulation
Nordi, Tiago Mateus; Barbosa, V. M.; Gounella, R. H.; Asan, Godfred; Luppe, Maximiliam; Navarro, Joao; Junior, Soares; Carmo, J. P.Made available in DSpace on 2022-04-29T08:46:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Deep-Brain Stimulation (DBS) is an emerging area to improve the life of patients with brain deceases and one with the most dynamic research towards implantable devices. This paper presents an electronic circuit to generate mild current pulses for application on Deep-Brain Stimulation (DBS). This circuit...
Altered phenotype and function of dendritic cells in individuals with chronic p...
Cury, Patricia Ramos; Carmo, J. P.; Horewicz, V. V.; Santos, Jean Nunes dos; Barbuto, J. A.; Cury, Patricia Ramos; Carmo, J. P.; Horewicz, V. V.Texto completo: acesso restrito. p. 1208–1216; Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2014-05-12T12:13:37Z No. of bitstreams: 1 1-s2.0-S0003996913001076-main.pdf: 790125 bytes, checksum: 1d674670a8e87aa1c34b5fb7105a3784 (MD5); Approved for entry into archive by Flávia Ferreira (flaviaccf@yahoo.com.br) on 2014-05-14T11:26:16Z (GMT) No. of bitstreams: 1 1-s2.0-S0003996913001076-main.pdf: 790125 bytes...
Altered phenotype and function of dendritic cells in individuals with chronic p...
Cury, Patricia Ramos; Carmo, J. P.; Horewicz, V. V.; Santos, Jean Nunes dos; Barbuto, J. A.; Cury, Patricia Ramos; Carmo, J. P.; Horewicz, V. V.Texto completo. Acesso restrito. p. 1208–1216; Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-10-08T20:07:20Z No. of bitstreams: 1 66666666666666.pdf: 790125 bytes, checksum: 1d674670a8e87aa1c34b5fb7105a3784 (MD5); Approved for entry into archive by Rodrigo Meirelles (rodrigomei@ufba.br) on 2013-10-31T18:10:52Z (GMT) No. of bitstreams: 1 66666666666666.pdf: 790125 bytes, checksum: 1d674670a8e...
Characterization of coating processes in Moiré Diffraction Gratings for strain ...
Ribeiro, João Eduardo; Lopes, Hernani; Carmo, J. P.This paper analyses the influence of the coating process in the optical efficiency of replicated Moire´ Diffraction Gratings (MDGs), which are applied on real field applications for measuring both the surface displacements and strains. The Moire´ diffraction technique is an experimental full-field, non-contact and high resolution optical method, which can reveal to be very useful in extreme harsh environments. ...
Application of fiber bragg gratings to wearable garments
Carmo, J. P.; Rocha, R. P.; Silva, A. F.; Correia, J. H.This paper presents a photonic system based on Fiber Bragg Gratings (FBGs) for application to wearable garments. The objective is spanning the FBGs over the whole area of the garments for acting as sensing elements. The FBGs are embedded on a polychloroethanediyl (polyvinyl chloride, commonly abbreviated as PVC) carrier in order to increase their sensitivity to strains and for improving the simultaneous acquisi...
Enhanced solid-state electrolytes made of lithium phosphorous oxynitride films
Ribeiro, J. F.; Sousa, R.; Carmo, J. P.; Gonçalves, L. M.; Silva, M. F.; Silva, Maria Manuela; Correia, J. H.This paper presents glassy films of lithium phosphorus oxynitride electrolyte with an amorphous structure and improved ionic conductivity suitable for solid‐state batteries. The films of lithium phosphorus oxynitride electrolyte were obtained by deposition using the RF sputtering technique in a reactive N2 atmosphere. The measurements showed films with ionic conductivities in range of 10− 7–10− 6 S·cm− 1, for t...
Layered materials for solid-state rechargeable lithium batteries
Ribeiro, J. F.; Silva, M. F.; Gonçalves, L. M.; Silva, Maria Manuela; Carmo, J. P.; Correia, J. H.
Fabrication methodology of microlenses for stereoscopic imagers using standard ...
Rocha, R. P.; Carmo, J. P.; Correia, J. H.This paper presents the fabrication technology of microlenses maintaining a high reproducibility of their characteristics with low cost. The objective of microlenses is to be integrated into imagers in CMOS technology to allow stereoscopic vision. The fabricated microlenses form cylindrical arrays to be placed above the optical filters and photodetectors, in order to potentiate stereoscopic vision and at the sa...
A low cost wireless sensors network with low-complexity and fast-prototyping
Carmo, J. P.; Correia, J. H.This chapter presents a low cost/fast prototyping wireless sensors network that was designed for a huge range of applications and making use of low cost commercial of the shelf components. Such applications includes industrial measurements, biomedical, domestic monitoring, remote sensing, among others. The concept of the wireless sensor network is presented and simultaneously, hot topics and their implementatio...
Digitally-controlled array of solid-state microcoolers for use in surgery
Carmo, J. P.; Gonçalves, L. M.; Ribeiro, J. F.; Silva, M. F.; Alpuim, P.; Wolffenbuttel, R. F.; Rocha, J. G.; Correia, J. H.This paper presents an approach for generating a well-defined cooling pattern over an area of tissue. An array of solid-state microcoolers is used, which could be included in a probe that provides local cooling. This medical instrument can be used for removal of scar tissue in the eye or for the rapid stopping of bleeding due to micro-cuts, which makes it a useful tool to medical doctors and could make surgery ...