Search results for "Measurement"
showing 10 items of 2918 documents
Theoretical review of emotional intelligence: models and measuring instruments
2013
Abstract This theoretical review of emotional intelligence (EI) starts from the earliest conceptualizations made by Galton, Binet, Stemberg Thurstone and Thordinke Gardner, who, during their historical period, were successful in laying the basis for the birth of emotional intelligence as a theoretical construction which was introduced for the first time, in scientific literature, in 90’s. Since then, different EI models have been developed and investigative contributions have been increased. In this article, the most representative EI models will be described with details, such as: 1) Mental ability model (Ability Based) developed by Mayer and Salovey 2) Model of emotional competences by Go…
Magnetic transition metal complexes of tetrathiafulvalene (TTF) derivatives
1997
We have prepared and characterized the transition metal complexes of two different TTF derivatives. We have oxidized the different complexes with electrooxidation and chemical oxidation techniques and the results are discussed. The magnetic properties of the complexes have been studied. TTF-carboxylate chelates are not stable enough, but thioether-TTF shows promising charge transfer salts.
Influence of nerve growth factor in endometriosis-associated symptoms
2011
To investigate the role of the nerve growth factor (NGF) in the development of dysmenorrhea/pelvic pain in patients with endometriosis, we performed a prospective, clinical, blind study. Peritoneal fluids (PFs) were obtained from patients with histologically proven endometriosis. Patients with endometriosis were divided into 7 different groups depending on their preoperative pain score and symptomatology: patients with no pain, patients with minimal pain (dysmenorrhea, pelvic pain, or both), and patients with severe pain (dysmenorrhea, pelvic pain, or both) and were used for the neuronal growth assay with cultured chicken dorsal root ganglia (DRG) and for Western blot analyses. Dorsal root …
Comparison of condensed versus noncondensed cycling test methods and correlation to a 185 minutes’ indoor race simulation
2017
Master's thesis Sports Science ME517 - University of Agder 2017 Background: The validity of a currently used condensed indoor test protocols (C-TP) as measurement of competitive cycling performance is questioned. Purpose: C-TP contain testing of wattage at lactate threshold (LTW), maximum oxygen consumption (VO2max) and a Wingate anaerobic test (WAnT), performed consecutively during one session. As comparison these tests were separated and performed individually over three consecutive days, giving a non-condensed test protocol (NC-TP). The results were compared to a 5min all-out cycling test (5min all-out) performed individually and as part of a 185 minutes’ race simulation. Method: During …
A MATLAB program for PV module performance analysis based on real outdoor data stored in a PostgreSQL database
2008
An Energy-Autonomous Wireless Sensor with Simultaneous Energy Harvesting and Ambient Light Sensing
2021
Wireless sensor nodes (WSNs) are generally powered by batteries, which results in a substantial limitation to the places where the nodes can be installed, to the maximum number of deployable devices, and to the node lifetime. To meet the demand for Internet-of-Things (IoT) applications that require a large number of maintenance-free, low cost, wireless sensor nodes, this paper proposes a wireless sensor platform with a single photovoltaic transducer that performs the dual role of harvesting energy and sensing ambient light. This dual use allows even smaller and cheaper nodes that do not require any form of supporting external power, with a reduced component count. The device implements off-…
Self-Powered Measurement System for Remote Monitoring of Human Metabolism
2022
Continuous and minimally invasive measurements of metabolism are the key to the understanding and proper treatment of various pathologies. In this context, this paper deals with an innovative concept of a wireless measurement system that monitors glucose concentration and is simultaneously powered by self-measurement. The measurement system directly generates a radio transmission at a frequency proportional to the measured glucose concentration, acting de facto as a glucose concentration to time converter. In that way, a remote base station can indirectly detect glucose concentration by measuring the frequency of received radio signals. The outcome is a wireless measurement system, which us…
Speed detection of battery-free nodes based on RF Wireless Power Transfer
2020
In the Internet of Things (IoT) era, Wireless Sensor Networks (WSNs) are rapidly increasing in terms of relevance and pervasiveness thanks to their notable real-time monitoring performance across several fields, including industrial, domestic, military, biomedical, commercial, environmental, and other sectors. A highly attractive implementation of WSNs is asset tracking with accurate data regarding the location and transportation conditions of goods, equipment, and the like. One highly promising application of WSNs along these lines is the remote speed monitoring of goods, ideally with battery-free sensor nodes that do not require any maintenance. This, however, represents a major challenge…
Riferibilità dei contatori statici di energia reattiva in presenza di armoniche. Evoluzione normativa e prove sperimentali
2013
Traceability of static reactive energy meters in the presence of harmonics: theoretical considerations and a DAQ-based reference meter
2013
This paper deals with some problems related to the measurements traceability with static meters for reactive energy. These problems arise when the meters operate in the presence of harmonics, which can negatively affect their performances, depending on implemented metric. The paper analyzes the problem in the light of both in-force and draft standards, from the viewpoint of the performances of both commercial meters and reference standard instruments. The analysis is supported by some experimental tests, which are carried out by means of a reference meter, based on data acquisition boards, which can be used in both sinusoidal and distorted conditions.