Search results for "POWER"
showing 10 items of 5099 documents
Theoretical Simulations on Electric Properties of CNT-Me and GNR-Me Interconnects Using Effective Media Approach
2011
Abstract To overcome disadvantages of nowadays microtechnology, a further miniaturization of electronic devices, high integration level as well as increase of both operation frequencies and power density is required, including the use of adequate materials and innovative chip interconnects. Due to their unique physical properties, especially due to a ballistic (without losses) mechanism of conductivity, carbon nanotubes (CNTs) and graphene nanoribbons (GNRs) attract a permanently growing technological interest, for example, as promising candidates for nanointerconnects in a high-speed electronics.
Who Controls the National Academic Promotion System: An Analysis of Power Distribution in Poland
2023
In studying the performance of academic systems, one often tries to find out—by inspecting some well-defined parameters—how specific changes in the legal system influence the volume and quality of desired outputs, such as publications, patents, or alumni. This mechanistic approach neglects the fact that the main actors in this spectacle are not passive, but have their own priorities, and actively self-organize in response to any changes in their professional environment. In this contribution, we investigate such collective social behavior using the data for academic promotions in Poland in the years 2011 to 2020. Focusing on degrees higher than the PhD, we analyzed over 12,500 habilitation …
Fuzzy risk analysis of a modern gamma-ray industrial irradiator
2011
Fuzzy fault tree analyses were used to investigate accident scenarios that involve radiological exposure to operators working in industrial gamma-ray irradiation facilities. The HEART method, a first generation human reliability analysis method, was used to evaluate the probability of adverse human error in these analyses. This technique was modified on the basis of fuzzy set theory to more directly take into account the uncertainties in the error-promoting factors on which the methodology is based. Moreover, with regard to some identified accident scenarios, fuzzy radiological exposure risk, expressed in terms of potential annual death, was evaluated. The calculated fuzzy risks for the exa…
Botrening som bindeledd mellom institusjon og egen bolig - på vei til et rusfritt liv : En kvalitativ studie om muligheter og utfordringer i et botre…
2018
Masteroppgave psykisk helsearbeid ME504 - Universitetet i Agder 2018 Background: The transition from inpatient treatment to own accommodation, the so-called “backsliding zone”, should according to research and experience happen as a gradual process where each individual gets more increasing responsibility. In Tyrili the students are offered life skills training as a part of the course of the drug treatment. This offer contributes to strengthen each individual’s ability to master his or her own living- and life situation. The background of this study was to gain knowledge of how life skills training can contribute to a good transition for life after treatment. Problem statement and motivatio…
IEEE Std 1459–2010. IEEE Standard Definitions for the Measurement of Electric Power Quantities under Sinusoidal, Nonsinusoidal, Balanced or Unbalance…
2010
Definitions used for measurement of electric power quantities under sinusoidal, nonsinusoidal, balanced, or unbalanced conditions are provided in this standard. Mathematical expressions that were used in the past, as well as new expressions, are listed, as well as explanations of the features of the new definitions.
PQ Metrics Implementation on Low Cost Smart Metering Platforms. A Case Study Analysis
2018
The increasing interest on the quality of the energy supplied and generated in distribution networks is raising the need of distributed power quality (PQ) measurements. To allow such capabilities with cost effective metering solutions, this paper wants to investigate the feasibility of using smart meters, already installed for energy billing, also for power quality monitoring. To this aim, an electronic board (based on STCOMET metrology device), already used in many energy meters of different countries, has been selected as case study platform. The manufacturer firmware of this board was essentially aimed at implementing energy meter metrics and power line communications functionalities. In…
Average Age of Information in Wireless Powered Mobile Edge Computing System
2022
Mobile edge computing (MEC) has been recognized as a promising technique to provide enhanced computation services for low-power wireless devices at the network edge. How to evaluate the timeliness of the task and data delivery is critical for the development of MEC applications. Considering a wireless powered MEC system, in this letter we study the average age of information (AoI), which is a crucial performance metric to measure the freshness of information. Specifically, in the considered system, a sensor node harvests energy from an energy transmitter and transmits computation tasks to the MEC server. The charging time of the sensor node’s capacitor, the waiting time and service time at …
On the Impact of Heat Pumps Electric Load on the Power Consumption of Lampedusa
2020
The present paper reports the results of a simulation study regarding the impact of the adoption of heat pumps for domestic hot water production in the island of Lampedusa (Italy). In the study, it has been assumed to replace electric storage water heaters with heat pumps at every dwelling of the about four thousand domestic end-users of the island and, in addition, to control the heat pump operation in order to enhance some parameters that characterize the quality of the generation and distribution system of the island (power peak, energy losses and voltage drop). According to the results of the simulations, while the replacement of electric storage water heaters with heat pumps is able to…
Testowanie psychologicznego (GAM) modelu agresji na próbie mężczyzn. Uzależnienie od substancji, stosowanie sterydów, cechy osobowości, wolna wola i …
2020
Przeprowadzono badania w celu sprawdzenia, w jaki sposób modele psychologiczne są w stanie wyjaśnić zjawisko agresji mężczyzn, którzy zażywają narkotyków, sterydów lub nie stosują takich substancji. Próbka mężczyzn (N = 131) została wybrana celowo pod względem uzależnienia od substancji, stosowania sterydów i bycia wolnego od substancji. Do pomiaru pięciu czynników osobowości wykorzystano dziesięciopunktowy spis osobowości (TIPI). Do pomiaru orientacji czasowej wykorzystano Kwestionariusz Percepcji Czasu Zimbardo (ZTPI), a do pomiaru siły woli wykorzystano Kwestionariusz Kontroli Start-Stop. W analizach statystycznych zastosowano analizę regresji hierarchicznej i modelowanie równań struktur…
Teacher students’ meaningful learning in widening learning worlds
2019
This qualitative metasynthesis investigated students’ meaningful learning experiences amid andragogical teacher education programmes. The programmes catered to the specific learning needs of adult students in the context of university-based teacher education. This study aimed to provide a wider picture of the frames of students’ meaningful learning in andragogical teacher education programmes. The findings revealed three major learning worlds of adult students’ meaningful learning, which formed a common system widening from the professional awakening to the transformative community and agency in society. Based on the findings, this study argues that in andragogical teacher education, which …