نتایج جستجو برای: δp in each x
تعداد نتایج: 17115329 فیلتر نتایج به سال:
The data show respiratory variables in 108 critically ill patients with acute respiratory failure placed on proportional assist ventilation with load adjustable gain factors (PAV+) after at least 36 h on passive mechanical ventilation. PAV+ was continued for 48 h until the patients met pre-defined criteria either for switching to controlled modes or for breathing without ventilator assistance. ...
BACKGROUND The majority of critically ill patients do not suffer from acute respiratory distress syndrome (ARDS). To improve the treatment of these patients, we aimed to identify potentially modifiable factors associated with outcome of these patients. METHODS The PRoVENT was an international, multicenter, prospective cohort study of consecutive patients under invasive mechanical ventilatory ...
within the components of communicative competence, a special emphasis is put on the “rules of politeness,” specifically the politeness strategies (brown and levinson, 1978) that speakers deploy when performing the request speech act. this is because the degree of imposition that making a request places upon one’s interlocutor(s) has been seen to be influenced by several factors among which, as ...
فرض کنید جواب بهینه یک مساله از قبل تعیین شده است. بهینه سازی معکوس عبارتست از به دست آوردن پارامترهایی مثل ضرایب تابع هدف و محدودیت های مساله ی بهینه سازی که پاسخ آن را از قبل می دانستیم. یک مساله بهینه سازی استاندارد معکوس که غالبا بررسی می شود، به شرح زیر است: مساله ی بهینه سازی زیر را با یک هدف خطی و یک جواب بهینه ی مطلوب $x^* in x$ را در نظر بگیرید: $$p~:~underset{x}{min}lbra...
the study of air infiltration into the buildings is important from several perspectives that may be noted to energy and design of hvac systems, indoor air quality and thermal comfort and design of smoke control systems. given the importance of this issue, an experimental and numerical study of air infiltration through conventional doors and windows has been explored in iran. to this end, at fir...
abstract the current study set out to address the issue as to whether the implementation of portfolio assessment would give rise to iranian pre-intermediate efl learner autonomy. participants comprised 60 female in pre-intermediate level within the age range of 16-28.they were selected from among 90 language learners based on their scores on language proficiency test -key english test. then, t...
Serum cholesterol response to changes in the diet: IV. Particular saturated fatty acids in the diet.
For many dietary changes satisfactory prediction of the average change in the serum cholesterol level of man in mg./100 ml., is given by Δ Chol. = 1.35(2ΔS − ΔP) + 1.5ΔZ where S and P are percentages of total calories provided by glycerides of saturated and polyunsaturated fatty acids in the diet and Z2 = mg. of dietary cholesterol/1000 Cal. This formula fails, however, when the dietary change ...
ly speaking the final endpoint constraint problems correspond toconstraints on the space of admissible controls. That is to say the effect ofthe constraint (8.3) is to restrict the admissible set of u(t) to belong to theset U(§(%),%) which results in ψ(x(tf ), tf) = 0.The optimal control problem is to find (if possible) an admissible controlu∗(·) such thatJ(x0, u ∗(·), t...
abstract in this thesis at first we comput the determinant of hankel matrix with enteries a_k (x)=?_(m=0)^k??((2k+2-m)¦(k-m)) x^m ? by using a new operator, ? and by writing and solving differential equation of order two at points x=2 and x=-2 . also we show that this determinant under k-binomial transformation is invariant.
فرض کنیم x و y فضاهای فشرده ی هاوسدورف باشند، a و b به ترتیب جبرهای یکنواخت بر x و y باشندa_{1} یک زیر مجموعه ی a باشد و ho : a_{1} ightarrow a ، au : a_{1} ightarrow a ، s : a_{1} ightarrow b و t : a_{1} ightarrow b نگاشت های باشند به طوری که$ ho(a_{1}) و a...
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