0 Fun for two
نویسنده
چکیده
We performed populations synthesis calculations of single stars and binaries and show that binary evolution is extremely important for Galactic astronomy. We review several binary evolution models and conclude that they give quite different results. These differences can be understood from the assumptions related to how mass is transfered in the binary systems. Most important are 1) the fraction of mass that is accreted by the companion star during mass transfer, 2) the amount of specific angular momentum which is carried away with the mass that leaves the binary system.
منابع مشابه
Aeùñö¹ìììóööøø Óò×øöù Blockinøøóò× Óó Ae Blockin Blockin Blockinòø È××ùùó¹êêòòóñ Ùò Blockinøøóò×
We des ribe eÆ ient onstru tions for various ryptographi primitives in private-key as well as publi -key ryptography. Our major results are two new onstru tions of pseudorandom fun tions. We prove the pseudo-randomness of one onstru tion under the assumption that fa toring (Blum integers) is hard while the other onstru tion is pseudo-random if the de isional version of the DiÆe-Hellman assumpti...
متن کاملMeasured HTTP Performance and Fun Factors
Recent work has emphasized the importance of pure delay components as well as rate components in the user perceived performance of elastic Internet applications, namely Web browsing. “Fun factors” have been previously introduced to describe the obtained performance with respect to the maximum possible performance on a scale of zero (no fun) to one (maximum fun). In this paper, several options f...
متن کاملIdentifying Factors Affecting Fun in Workplace with Ethnography Approach
The purpose of this study is to identifying factors affecting Fun in Workplace in Army Physical Training Corps.The study type is developmental and mix method and to extract factors, ethnography methodology that is a qualitative method was used. To extract factors, ethnography methodology was used. Statistical population in this study consists of Army Physical Training Corps. In quantitative sec...
متن کاملمقایسه فعالیت بدنی مفرح و معمولی بر میزان تحرک و قدرت عضلانی سالمندان مقیم خانه های سالمندان شهر مشهد
Background and purpose: The aim of this study was to compare the effect of routine and fun physical activities on degree of mobility and muscle strength in elderly residents in nursing homes in Mashhad. Materials and methods: A randomized clinical trial was conducted (in 2013-2014) in which two groups of elderly living in nursing homes in Mashhad were recruited. Data was collected using Elde...
متن کاملDesigning a Theorem Prover
ion, and substitution is simple: fun replace_term (u,new) t = if t=u then new else case t of Fun(a,ts) => Fun(a, map (replace_term(u,new)) ts) | _ => t; fun abstract t = let fun abs i (Pred(a,ts)) = Pred(a, map (replace_term (t, Bound i)) ts) | abs i (Conn(b,As)) = Conn(b, map (abs i) As) | abs i (Quant(q,b,A)) = Quant(q, b, abs (i+1) A) in abs 0 end; fun subst_bound t = let fun subst i (Pred(a...
متن کاملÍ×× Óó ««ööòøøøøðð Òò Aeóòòò««ööòøøøøðð Çôøøññþþøøóò Ððóööøøñ× Óö Îöööøøóòòð Øø ×××ññððøøóò Ûûøø × Blockinóòøøòùóù× Ó×ø Ùò Blockinøøóò×
Cost fun tions formulated in four-dimensional variational data assimilation (4D-Var) are nonsmooth in the presen e of dis ontinuous physi al pro esses (i.e., the presen e of \on-o " swit hes in NWP models). The adjoint model integration produ es values of subgradients, instead of gradients, of these ost fun tions with respe t to the model's ontrol variables at dis ontinuous points. Minimization...
متن کامل