Autor: Re, A. S. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Use of simulations to predict lifeboat survivability in extreme waves and the effectiveness of coxswain performed actions
Autorzy:: Billard, R.
Rees, R.
Veitch, B.
Re, A. S.
Tematy:: game based learning
emergency evacuation
simulation
lifeboat
surface waves
lifeboat coxswains
life saving appliances
offshore platform; Pokaż więcej
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:: https://bibliotekanauki.pl/articles/59123343.pdf Link otwiera się w nowym oknie
Opis:: Simulations were used to investigate the performance of lifeboats in high sea states using a virtual wave tank. Numerical simulations were performed in regular and irregular waves to study launch performance in extreme weather conditions. Limitations in launch equipment and the role of the timing of coxswains’ actions were investigated. The study indicated that the lifeboat may not be able to successfully launch when significant wave heights are above 8 m and the lifeboat is launched near the trough of a wave. High initial setback and continuous wave forces result in the vessel being unable to clear away from the launch platform. As wave heights increase, the amount of setback and time to exit the launch area increases. Over 35% of launches resulted in the lifeboat being unable to clear from the launch area when significant wave heights were 10 m or above. The study also identified that delay in completion of actions performed by the coxswain, such as releasing the lifeboat hooks and applying throttle, can increase setback and time to exit the launch area.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Chemical composition and antioxidant activity of extracts from Moroccan fresh fava beans pods (Vicia Faba L.).
Autorzy:: Kalili, A.
Ouafi, R.E.
Aboukhalaf, A.
Naciri, K.
Tbatou, M.
Essaih, S.
Belahyan, A.
Belahsen, R.
Tematy:: Vicia faba
chemical composition
antioxidant activity
total phenolics
flavonoids
mineral analysis; Pokaż więcej
Wydawca:: Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Powiązania:: https://bibliotekanauki.pl/articles/2082861.pdf Link otwiera się w nowym oknie
Opis:: Background. In Morocco, fava beans are widely used as a main meal or as an ingredient in various traditional recipes, in the form of fresh ripe seeds or dry seeds. In the past, the tender skin of bean pods was also used in certain specific dishes, thus diversifying the diet. However, the peels of the tender bean pods are currently less or not used and considered waste. In Moroccan, fava bean pods peels, traditionally used in food in the past, are today considered as waste. The valorization of fresh fava bean pods could revitalize the use of the specific dishes and diversify the diet. For this reason, the research aimed to assess the nutritional values and biological compounds of the whole fresh fava bean pods (Vicia faba L.). Objective. Evaluate the content of nutrients, total phenolic, flavonoids and tannin contents and antioxidant activity in different extracts of the tender pods of the fava bean (Vicia faba L.). Material and methods. The proximate composition and minerals were determined using AOAC methods. The total phenolic compounds by the Folin-Ciocalteu reagent, the total flavonoids were analyzed using aluminum chloride colorimetric method, the tannins by method of vanillin in an acidic medium and the antioxidant activity was evaluated by DPPH method. Results. The results show that the fresh fava bean pods have a moisture content of 87.31 ± 0.25%, ash 4.67 ± 1.03, and protein 29.11 ± 3.20 g/100 g. The legume samples also contain potassium (1946.8±4.61), phosphorus (483.8 ± 3.14), and calcium (399.6 ±2.25) mg/100 g of dry matter representing at last 40-50% of the RDI. The content of the different extracts of (Vicia faba L) varied from 49.5 to 594.4 mg GAE/ g for the total phenols, from 0.7 mg to 3.4 mg QE/g for flavonoids, and from 4.9 mg to 73.91 mg TAE/g dry weight for tannins. The evaluation of the antioxidant activity in the various extracts revealed a better activity in the methanolic extract (IC50=491.2 μg/mL) compared to others extracts: the MeOH/water extract (IC50=606.61 μg/mL), DCM/ MeOH extract (IC50 = 642.67 μg/mL) and DCM extract below of 50%. Conclusions. This study shows that fava bean pods, traditionally used in food, are rich in macro and micronutrients and bioactive substances, which demonstrates their potential contribution to human food and nutritional security.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Development of diagnostic tools for Plasma Focus derived X-ray source
Autorzy:: Angeli, E.
Bonifazzi, C.
Da Re, A.
Marziani, M.
Tartari, A.
Frignani, M.
Mannucci, S.
Mostacci, D.
Rocchi, F.
Sumini, M.
Tematy:: plasma focus
electron impact ionization
characteristic X-ray lines
bremsstrahlung
material heating
dosimetry; Pokaż więcej
Wydawca:: Instytut Chemii i Techniki Jądrowej
Powiązania:: https://bibliotekanauki.pl/articles/147434.pdf Link otwiera się w nowym oknie
Opis:: The energy spectra of X-rays generated by the impact of electron beams on high- and medium-Z targets following the pinch implosion of Plasma Focus (PF) devices are discussed in terms of the possible mechanisms of X-ray production following electron impact ionization. In addition, the temperature measurement of the PF inner electrode is reported and some results have been proved useful in order to optimize the device functionalities.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Temporal stability of estimated soil water flux patterns across agricultural fields
Autorzy:: Guber, A.K.
Gish, T.J.
Pachepsky, Y.A.
van Genuchten, M.T.
Daughtry, C.S.T.
Nicholson, T.J.
Cady, R.E.
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/26191.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Precision studies of observables in $pp\rightarrow W\rightarrow \iota \nu_{\iota }$ and $pp\rightarrow \gamma, Z\rightarrow \iota ^{+}\iota ^{-}$ processes at the LHC
Autorzy:: Krauss, F.
Petriello, F.
Ferrera, G.
Florian, D. de
Calame, C. M. Carloni
Huss, A.
Barzè, L.
Nicrosini, O.
Płaczek, Wiesław
Arbuzov, A. B.
Was, Z.
Chiesa, M.
Bardin, D. Yu
Kalinovskaya, L. V.
Re, E.
Montagna, G.
Alioli, S.
Bondarenko, S. G.
Vicini, A.
Wackeroth, D.
Piccinini, F.
Bernaciak, C.
Nason, P.
Grazzini, M.
Karlberg, A.
Martinez, H.
Sapronov, A. A.
Dittmaier, S.
Jadach, S.
Mück, A.
Prestel, S.
Schönherr, M.
Li, Y.
Höche, S.
Schwinn, C.
Zanderighi, G.
Opis:: This report was prepared in the context of the LPCC Electroweak Precision Measurements at the LHC WG (https://lpcc.web.cern.ch/lpcc/index.php?page=electroweak_wg) and summarizes the activity of a subgroup dedicated to the systematic comparison of public Monte Carlo codes, which describe the Drell–Yan processes at hadron colliders, in particular at the CERN Large Hadron Collider (LHC). This work represents an important step towards the definition of an accurate simulation framework necessary for very high-precision measurements of electroweak (EW) observables such as the W boson mass and the weak mixing angle. All the codes considered in this report share at least next-to-leading-order (NLO) accuracy in the prediction of the total cross sections in an expansion either in the strong or in the EW coupling constant. The NLO fixed-order predictions have been scrutinized at the technical level, using exactly the same inputs, setup and perturbative accuracy, in order to quantify the level of agreement of different implementations of the same calculation. A dedicated comparison, again at the technical level, of three codes that reach next-to-next-to-leading-order (NNLO) accuracy in quantum chromodynamics (QCD) for the total cross section has also been performed. These fixed-order results are a well-defined reference that allows a classification of the impact of higher-order sets of radiative corrections. Several examples of higher-order effects due to the strong or the EW interaction are discussed in this common framework. Also the combination of QCD and EW corrections is discussed, together with the ambiguities that affect the final result, due to the choice of a specific combination recipe. All the codes considered in this report have been run by the respective authors, and the results presented here constitute a benchmark that should be always checked/reproduced before any high-precision analysis is conducted based on these codes. In order to simplify these benchmarking procedures, the codes used in this report, together with the relevant input files and running instructions, can be found in a repository at https://twiki.cern.ch/twiki/bin/view/Main/DrellYanComparison.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego