Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Vânia B. Oliveira"'
Autor:
Vânia B. Oliveira
Publikováno v:
Energies, Vol 16, Iss 6, p 2647 (2023)
The Future of Energy is focused on the consolidation of new energy technologies. Among them, Fuel Cells (FCs) are on the Energy Agenda due to their potential to reduce the demand for fossil fuel and greenhouse gas emissions, their higher efficiency (
Externí odkaz:
https://doaj.org/article/f0c565b995eb47a7a22fbef2e6d4e1a1
Publikováno v:
Energies, Vol 15, Iss 17, p 6335 (2022)
Direct methanol fuel cells (DMFCs) have attracted much attention due to their potential application as a power source for portable devices. Their simple construction and operation, associated with compact design, high energy density, and relatively h
Externí odkaz:
https://doaj.org/article/2baeb3cae99f4f85863c7b4101e6ac63
Publikováno v:
Energies, Vol 15, Iss 10, p 3787 (2022)
Passive small direct alcohol fuel cells (PS-DAFCs) are compact, standalone devices capable of electrochemically converting the chemical energy in the fuel/alcohol into electricity, with low pollutant emissions and high energy density. Thus, PS-DAFCs
Externí odkaz:
https://doaj.org/article/f9fa19fdb4ab4b9c9037de3dca929c79
Publikováno v:
Energies, Vol 13, Iss 19, p 5198 (2020)
Passive direct methanol fuel cells (pDMFCs) are promising devices to replace the conventional batteries in portable electronic devices, due to their higher energy densities, autonomies, and instant recharging. However, some challenges, such as their
Externí odkaz:
https://doaj.org/article/4a3373f081a048138865e253cb53d8c0
Publikováno v:
U.Porto Journal of Engineering, Vol 1, Iss 1, Pp 89-103 (2015)
Low methanol and water crossover with high methanol concentrations are essential requirements for a passive Direct Methanol Fuel Cell (DMFC) to be used in portable applications. Therefore, it is extremely important to clearly understand and study the
Externí odkaz:
https://doaj.org/article/34f1f5ae322b456f8629245cc135c74a
Autor:
Vânia B. Oliveira, Alexandre Pereira, Pedro Mota, Margarida Areias Marques Miranda, Pedro Cardoso
Publikováno v:
Revista Iberoamericana de Cirugía de la Mano, Vol 48, Iss 01, Pp 061-065 (2020)
Merkel Cell Carcinoma is a rare type of aggressive and often fatal neuroendocrine tumor of the skin.We report a clinical case of a 56-year-old female with a Merkel cell carcinoma on the left hand, without distant metastasis, treated with surgical exc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a5ee941c0ddd250367531a2d8067c0e
http://www.thieme-connect.de/DOI/DOI?10.1055/s-0040-1712090
http://www.thieme-connect.de/DOI/DOI?10.1055/s-0040-1712090
Autor:
Ricardo Rodrigues-Pinto, Francisco Xará-Leite, Manuel Magalhães, Vânia B. Oliveira, Pedro Cardoso, L. N. Coutinho, Carolina Fleming
Publikováno v:
European Journal of Orthopaedic Surgery & Traumatology. 30:19-23
Bone giant cell tumors, although benign, may be locally aggressive and cause severe morbidity; in some cases, they can also disseminate at distance and cause death. Denosumab has been approved to treat unresectable bone giant cell tumors or when surg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae39f187d3a5e82c9fe53781a5cdc865
https://doi.org/10.1007/s00590-019-02554-9
https://doi.org/10.1007/s00590-019-02554-9
Publikováno v:
International Journal of Hydrogen Energy. 44:19334-19343
A great challenge in a passive direct methanol fuel cell (pDMFC) is how to reduce both methanol and water crossover, from the anode to the cathode side, without significant losses on its power output. Different approaches including improving the memb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33f4a081613f9faa4fcafb997e42ffd1
https://doi.org/10.1016/j.ijhydene.2019.03.162
https://doi.org/10.1016/j.ijhydene.2019.03.162
Publikováno v:
Electrochimica Acta. 300:306-315
The design of the current collectors (CCs) used in fuel cells is crucial as it affects the energy density generated from these systems. This is due to the fact that different designs will lead to different charge, heat and mass transport phenomena. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddbe6a4300f41384a487ab5a8c7a8ffc
https://doi.org/10.1016/j.electacta.2019.01.131
https://doi.org/10.1016/j.electacta.2019.01.131
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Microbial fuel cells (MFCs) have been receiving an increased attention over the last years due to their potential to combat two global problems: waste pollution and energy demand. Additionally, when a wastewater is used, MFCs can perform its treatmen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b429992995ef09a421ef0a789f0315c
https://doi.org/10.1016/j.scitotenv.2018.08.061
https://doi.org/10.1016/j.scitotenv.2018.08.061