1,683 research outputs found
Life cycle assessment of photovoltaic implementation: an Italian case study
The energy efficiency is the possibility and ability to carry out a production process consume with the involves of less energy and minor environmental impact. Life Cycle Assessment is one of the major tools involved in the economic, social and environmental evaluation. The aim of this work is the LCA application to an Italian company that provides to install a photovoltaic plant for the energy self-maintenance, in order to break down costs and environmental impacts. The photovoltaic business can be an interesting solution especially for companies which consume more energy during the day. In the case study was highlighted that an average of 400.00 €/month was spent, equal to about 900 kWh / month. The company installed a 10 kWp photovoltaic system and with this implementation the energy consumption diminished of 84% and the costs of 57%
Quantum and Classical in Adiabatic Computation
Adiabatic transport provides a powerful way to manipulate quantum states. By
preparing a system in a readily initialised state and then slowly changing its
Hamiltonian, one may achieve quantum states that would otherwise be
inaccessible. Moreover, a judicious choice of final Hamiltonian whose
groundstate encodes the solution to a problem allows adiabatic transport to be
used for universal quantum computation. However, the dephasing effects of the
environment limit the quantum correlations that an open system can support and
degrade the power of such adiabatic computation. We quantify this effect by
allowing the system to evolve over a restricted set of quantum states,
providing a link between physically inspired classical optimisation algorithms
and quantum adiabatic optimisation. This new perspective allows us to develop
benchmarks to bound the quantum correlations harnessed by an adiabatic
computation. We apply these to the D-Wave Vesuvius machine with revealing -
though inconclusive - results
Utilização de aplicativos Base e Calc do pacote BrOffice.org para criação de sistema de informação de pequeno porte.
Este artigo descreve uma forma de se criar um sistema de informação de pequeno porte usando as ferramentas Calc e Base e, com elas integradas, obtém-se uma ferramenta fácil de se usar e acessível a qualquer pessoa, sem custos. Um caso de estudo é mostrado para exemplificar o uso deste sistema
A Structured Framework and Resources to Use to Get Your Medical Education Work Published.
IntroductionMedical educators often have great ideas for medical education scholarship but have difficulty converting their educational abstract or project into a published manuscript.MethodsDuring this workshop, participants addressed common challenges in developing an educational manuscript. In small-group case scenarios, participants discovered the importance of the "So what?" in making the case for their project. Incorporating conceptual frameworks, participants chose appropriate outcome metrics, discussed how to frame the discussion section, and ensured appropriate journal fit. After each small-group exercise, large-group discussions allowed the small groups to report back so that facilitators could highlight and reinforce key learning points. At the conclusion of the workshop, participants left with a checklist for creating an educational manuscript and an additional resources document to assist them in avoiding common pitfalls when turning their educational abstract/project into a publishable manuscript.ResultsThis workshop was presented in 2016 and 2017. Presenter evaluations were completed by 33 participants; 11 completed conference evaluations. The mean overall rating on presenter evaluations was 4.55 out of 5, while the conference evaluations mean was 3.73 out of 4. Comments provided on both evaluation tools highlighted the perceived effectiveness of the delivery and content. More than 50% of respondents stated that they planned to incorporate the use of conceptual frameworks in future work.DiscussionThis workshop helped participants address common challenges by providing opportunities for hands-on practice as well as tips and resources for use when submitting a medical education manuscript for publication
Nash Social Welfare in Selfish and Online Load Balancing (Short Paper)
In load balancing problems there is a set of clients, each wishing to select a resource from a set of permissible ones, in order to execute a certain task. Each resource has a latency function, which depends on its workload, and a client's cost is the completion time of her chosen resource. Two fundamental variants of load balancing problems are selfish load balancing (aka. load balancing games), where clients are non-cooperative selfish players aimed at minimizing their own cost solely, and online load balancing, where clients appear online and have to be irrevocably assigned to a resource without any knowledge about future requests. We revisit both problems under the objective of minimizing the Nash Social Welfare, i.e., the geometric mean of the clients' costs. To the best of our knowledge, despite being a celebrated welfare estimator in many social contexts, the Nash Social Welfare has not been considered so far as a benchmarking quality measure in load balancing problems. We provide tight bounds on the price of anarchy of pure Nash equilibria and on the competitive ratio of the greedy algorithm under very general latency functions, including polynomial ones. For this particular class, we also prove that the greedy strategy is optimal, as it matches the performance of any possible online algorithm
The role of education in innovation-migration nexus in Europe
Using panel data between 2012 and 2020, this research examines the relationship between the flows of low-skilled immigrants and innovation in the EU-15 group of nations and Switzerland. The empirical component is generated from a theoretical model that we construct. After addressing the potential endogeneity of the share of immigrants in the population, we find that regions with a relatively high immigrant population have a favorable impact on the generation of patent applications, whereas low-skilled immigrants have the reverse effects on innovation. Hence, the results are in line with the proposition in the theoretical section that lower-educated immigrants determine social decreasing returns in the economy
Threadfin bream (Nemipterus) resources along the Kerala coast with notes on biology of Nemipterus
Nemtpterids are a group of quantitatively imporlEnl fsh alcng the Kerala coast.
The greater concentratioi) of Nemipterush in 30-50m depth and the peak landing
is in September. This is a carnivorous fish and feeding does not cease during
spawning season. N. Japonicus attains a length of 136 mm at the end of 1 year,
186 mm at the end of II year and 236 mm at the end of HI year
- …