New Releases by Hossein Amini

"Whereas high-frequency waves are valid solutions to the Boussinesq equations in certain limits, their amplitudes are generally observed to be small in large-scale atmospheric and oceanic data. Traditionally, this has led to the development of balance models, reducing the dynamics to only the slow subset. Their solutions, however, can spontaneously generate imbalance in the context of the full equations. To study this phenomenon, we perform high-resolution turbulence simulations of the non-hydrostatic Boussinesq equations, starting with a high-order nonlinearly balanced initial condition. To produce this initial condition, we employ the nonlinear normal mode initialization scheme that was introduced by Baer and Tribbia (1977) up to second order in the Rossby number as the next-order improvement to quasigeostrophic theory. This initialisation is devised to limit the growth of high-frequency modes initially. To keep the flow predominantly balanced, we set the initial Rossby, Ro, and Froude, Fr, numbers to small values. By increasing these dimensionless parameters slightly, we investigate at what scales balance breaks down and after how long. Our results show that the balanced initial condition displays a steep geostrophic energy spectrum and an even steeper ageostrophic energy spectrum. However, a shallow tail later develops in the ageostrophic energy spectrum at small scales if Ro and the Reynolds number, Re, are large enough. This shallow range moves toward smaller wavenumbers if Ro is increased. Increasing N/f (while f is held nearly constant) leads to a shift of the shallow tail to smaller scales due to lower amplitudes of the unbalanced modes. By implementing a Baer-Tribbia-based balance/imbalance decomposition at the end of the integration time, we show that the unbalanced component of the dynamics accounts for the shallow range in the energy spectrum. This breakdown of balance, which leads to a change of slope in the energy spectrum, is consistent with observed atmospheric and oceanic spectra. The disparity between the fast and slow timescales, which is a requirement of balance, is shown to break down at scales where the energy spectrum is still steep and the scale-dependent Ro and Fr are small. Spontaneous imbalance, which is the energy transfer from the balanced to the unbalanced modes, is also quantified in this study. More particularly, the scale at which it occurs and its dependence on the flow parameters are investigated. In our simulations, this quantity is shown to scale approximately as Ro^4.4 for our decomposition, accurate to second order in Ro. However, the wavenumber at which the maximum energy transfer from balance to imbalance occurs is invariant to Ro and Fr but dependent on the large-scale flow characterised by the Rossby radius of deformation. This wavenumber is found to be smaller than the wavenumber characterising the transition between the large scales and the shallow tail but larger than the peak of the energy spectrum. By comparing the results at different orders of balance, it is determined that all qualitative conclusions of this study are robust to the precise definition of balance. " --

Screen story by Chris Morgan & Walter Hamada.

Há dez anos, a vingativa Rainha Ravenna assassinou o rei na mesma noite em que se casara com ele. No entanto, dominar o reino tornou-se um sofrimento para a Rainha. Para salvar seus poderes, ela deve devorar um coração puro, e Branca de Neve é a única pessoa com esse coração. A fim de capturá-la, Ravenna recorre ao Caçador, o único homem que já se aventurou pela Floresta Sombria e sobreviveu. Branca de Neve será morta pelo Caçador? Ou será treinada por ele e se tornará a melhor guerreira que o reino já conheceu?

Une réécriture haletante du célèbre conte des frères Grimm, qui en révèle toute la modernité. Dix années se sont écoulées depuis l’assassinat du roi par la reine Ravenna, splendide et vengeresse, le soir même de leurs noces. Ces dix années de mainmise sur le royaume dévasté commencent à peser sur la maléfique souveraine. Pour empêcher sa magie de disparaître et sa beauté de s’évanouir, elle doit se nourrir d’un cœur pur. Le cœur de celle qu’elle garde prisonnière dans ses geôles, la fille du roi. Blanche-Neige réussit à s’enfuir et trouve refuge dans la Forêt des Ténèbres. La reine choisit d’envoyer dans ce lieu enchanté, peuplé d’une flore magique et d’une faune dangereuse, le seul homme qui en soit sorti vivant : Eric, un chasseur torturé. Cet homme, pour qui la vie ne recèle plus aucun espoir, accepte de ramener la jeune fille. Mais face à sa proie, il hésite. La tuera-t-il ? Ou l’aidera-t-il à devenir le plus grand guerrier que le royaume ait connu ?

A breathtaking new vision of a legendary tale. Snow White is the only person in the land fairer than the evil queen who is out to destroy her. But what the wicked ruler never imagined is that the young woman threatening her reign has been training in the art of war with a huntsman who was dispatched to kill her.

Al Ghadir is a twenty-volume book written by the Iranian Shia scholar Allama Abd Al Husayn Amini. The main subject of this book is discussing Hadith of the pond of Khumm according to Sunni documents. In order to do so, Amini has gathered the narrations of 110 companions (Sahaba) as well as 40 followers of Muhammad about the event. He then states the related Hadiths narrated by 360 Hadit narrators between 2nd to 14th centuries of Islamic calendar. Since Sunni Muslims - unlike Shia Muslims - do not consider Ali as the successor of Muhammad, Amini in his book has tried to u200cprove Ali''s succession based on Sunni documents. Amini, in writing the book, traveled to different countries in order to take advantage of the libraries there among which were India, Iraq, Pakistan, Morocco, Egypt and some others. Translation: Urdu translation of Al-Ghadir has been done by Adeeb-e-asr Allamah Syed Ali Akhtar Rizvi, a Twelver Shī''ah scholar, speaker, author, historian and poet. On the request of Grand Ayatollah Naser Makarem Shirazi he stated translation in year 1990. The first volume of which published in year 1991. Then in 2010 the complete set of volume got published.

Al Ghadir is a twenty-volume book written by the Iranian Shia scholar Allama Abd Al Husayn Amini. The main subject of this book is discussing Hadith of the pond of Khumm according to Sunni documents. In order to do so, Amini has gathered the narrations of 110 companions (Sahaba) as well as 40 followers of Muhammad about the event. He then states the related Hadiths narrated by 360 Hadit narrators between 2nd to 14th centuries of Islamic calendar. Since Sunni Muslims - unlike Shia Muslims - do not consider Ali as the successor of Muhammad, Amini in his book has tried to u200cprove Ali''s succession based on Sunni documents. Amini, in writing the book, traveled to different countries in order to take advantage of the libraries there among which were India, Iraq, Pakistan, Morocco, Egypt and some others. Translation: Urdu translation of Al-Ghadir has been done by Adeeb-e-asr Allama Syed Ali Akhtar Rizvi, a Twelver Shī''ah scholar, speaker, author, historian and poet. On the request of Grand Ayatollah Naser Makarem Shirazi he stated translation in year 1990. The first volume of which published in year 1991. Then in 2010 the complete set of volume got published.

After an admired soldier leaves his regiment in disgrace, he sets out on a sweeping adventure to regain his honor, recapture his love and save the life of his best friend.

Kate falls for journalist Merton and faces the choice of whether to marry the man she loves, or give him up to take her rightful place in society. Her struggle is a conflict between 19th- and 20th-century values. Then Millie enters their circle and the love affair takes an unexpected direction.