Search results for "object"

X-ray emission in protostellar jets: comparison between model predictions and observations

2007

Herbig-Haro objects: model prediction and comparison with X-ray and optical observations

2007

X-ray emission from fast moving shocks in the protostellar jet HH 154: a binding diagnostic of the emission mechanism

2004

We propose to determine the proper motion of the X-ray source associated with HH 154, the only known protostellar jet in which the X-ray emission mechanism can be studied in detail. Our numerical simulations indicate that the X-rays are produced in a fast-moving (500 km/s) post-shock region, and our HST observations show high proper motion shocked material moving at similar speed. Detection (or lack of) of proper motion of the X-ray source will strongly confirm (or falsify) our model, and constitute the basis for a general theory of X-ray emission in protostellar jets. Understanding and modeling the emission mechanism is key to assess the lifetime of the X-ray emission and thus the influenc…

A Matrix Model For An Energy Management System Based On Multi-Carrier Energy Hub Approach

2015

The INGRID FP7 European co-funded project studies several methodologies concerning hydrogen production and storage, aiming to provide services to electricity system operators for suitably balancing electrical supply and demand. In such a context, the problem of integrating different carriers into a single multi-hub optimiser represents a challenging topic for the research. This paper depicts the Energy Management System (EMS) of the plant which will be developed and built as a prototype of the INGRID system. The approach followed for the EMS design and development takes the cue from the matrix model presented in the rest of the paper, as well as the general optimisation problem formulation …

Sport State iOS lietotne

2015

Šis dokuments ir LU Datorikas fakultātes kvalifikācijas darba ietvaros izstrādātās sistēmas „SportState iOS lietotne“ tehniskā dokumentācija. Sistēmas mērķis ir nodrošināt „iPhone“ lietotājiem iespēju aplūkot aktuālo sporta notikumu kalendāru un atrašanās vietu uz kartes. Lietotne ļauj notikumus meklēt pēc vairākiem kritērijiem, kā arī veidot iecienītāko notikumu izlasi. Izmantojot šo lietotni, sporta draugiem būs krietni vieglāk izlemt, kuras spēles apmeklēt, bet sporta notikumu organizētājiem šī sistēma ļautu palielināt apmeklētāju skaitu tribīnēs. „SportState“ sistēma pagaidām nav plānota kā komerciāls produkts.

Klientu pašapkalpošanās sīklietotne

2016

A Systematic Way of Structuring Real-World Multiobjective Optimization Problems

2023

In recent decades, the benefits of applying multiobjective optimization (MOO) methods in real-world applications have rapidly increased. The MOO literature mostly focuses on problem-solving, typically assuming the problem has already been correctly formulated. The necessity of verifying the MOO problem and the potential impacts of having an incorrect problem formulation on the optimization results are not emphasized enough in the literature. However, verification is crucial since the optimization results will not be meaningful without an accurate problem formulation, not to mention the resources spent in the optimization process being wasted. In this paper, we focus on the MOO problem struc…

The impacts of legitimacy appraisal of defeat on supporters’ identity management strategies: Testing the role of emotions

2022

Emotion is a central feature of many competitive sports. In this regard, re- search revealed that defeats have powerful impacts on athletes who can feel deep- ly distressed or annoyed. Comparatively, relatively few studies have directly ad- dressed the emotional experience of supporters associated with losing teams. This is surprising when taking into account the negative consequences of emotions on intergroup relations (i.e., fans riots). To fill this gap, it is crucial to identify to whom these emotions are addressed. In this study, we proposed that the ob- ject of specific emotions would trigger the use of specific identity management strategies depending on the legitimacy appraisal of t…

Coupling dynamic simulation and interactive multiobjective optimization for complex problems: An APROS-NIMBUS case study

2014

Dynamic process simulators for plant-wide process simulation and multiobjective optimization tools can be used by industries as a means to cut costs and enhance profitability. Specifically, dynamic process simulators are useful in the process plant design phase, as they provide several benefits such as savings in time and costs. On the other hand, multiobjective optimization tools are useful in obtaining the best possible process designs when multiple conflicting objectives are to be optimized simultaneously. Here we concentrate on interactive multiobjective optimization. When multiobjective optimization methods are used in process design, they need an access to dynamic process simulators, …

An X-ray characterization of the central region of the supernova remnant G332.5-5.6

2015

Aims. We present an X-ray analysis of the central region of supernova remnant (SNR) G332.5-5.6 through an exhaustive analysis of XMM-Netwon observations with complementary infrared observations. We characterize and discuss the origin of the observed X-ray morphology, which presents a peculiar plane edge over the west side of the central region. Methods. The morphology and spectral properties of the X-ray SNR were studied using a single full frame XMM-Netwon observation in the 0.3 to 10.0 keV energy band. Archival infrared WISE observations at 8, 12 and 24 μm were also used to investigate the properties of the source and its surroundings at different wavelengths. Results. The results show th…