Enhancement of household refrigerator energy efficiency by studying the effect of refrigerant charge and capillary tube length

Autor: S.k. Gugulothu

Publikováno v: Volume: 7, Issue: 5 1121-1129
Journal of Thermal Engineering

Experiments were carried out initially by considering pure R134a and hydrocarbon refrigerant mixtures such as (R290/R600a) (HCM1 44/56, HCM2 50/50, HCM3 54/46, HCM4 64/36, and HCM5 74/26 wt %). Tests are conducted at the atmospheric temperature of 30

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c196b2a98ce277083ae326a44ad0dbe9
https://doi.org/10.18186/thermal.977979

High-Resolution Seismocardiogram Acquisition and Analysis System

Autor: Fábio Leitão, Eurico Moreira, Filipe Alves, Mário Lourenço, Olga Azevedo, João Gaspar, Luis A. Rocha

Publikováno v: Sensors, Vol 18, Iss 10, p 3441 (2018)

Several devices and measurement approaches have recently been developed to perform ballistocardiogram (BCG) and seismocardiogram (SCG) measurements. The development of a wireless acquisition system (hardware and software), incorporating a novel high-

Externí odkaz: https://doaj.org/article/8f807fa78a34440fb90b1ad9dcc14b22

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Investigation of the Dynamics of a 2-DoF Actuation Unit Cell for a Cooperative Electrostatic Actuation System

Autor: Almothana Albukhari, Ulrich Mescheder

Publikováno v: Actuators
Volume 10
Issue 10
Actuators, Vol 10, Iss 276, p 276 (2021)

The mechanism of the inchworm motor, which overcomes the intrinsic displacement and force limitations of MEMS electrostatic actuators, has undergone constant development in the past few decades. In this work, the electrostatic actuation unit cell (AU

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6c01c145623b3cd66e63ad8f0b05ab2
https://doi.org/10.3390/act10100276

High-resolution seismocardiogram acquisition and analysis system

Autor: Eurico Esteves Moreira, Olga Azevedo, Mário Lourenço, Luís A. Rocha, Joao Gaspar, F. S. Alves, Fábio André Costa Leitão

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Sensors, Vol 18, Iss 10, p 3441 (2018)
Sensors (Basel, Switzerland)
Sensors
Volume 18
Issue 10

Several devices and measurement approaches have recently been developed to perform ballistocardiogram (BCG) and seismocardiogram (SCG) measurements. The development of a wireless acquisition system (hardware and software), incorporating a novel high-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dcc0e2aea60faa8b5c2df9cc0268ac6e