نتایج جستجو برای: پمپ های abc
تعداد نتایج: 493407 فیلتر نتایج به سال:
We define Anderson-Brown-Cisinski (ABC) cofibration categories, and construct homotopy colimits of diagrams of objects in ABC cofibraction categories. Homotopy colimits for Quillen model categories are obtained as a particular case. We attach to each ABC cofibration category a right derivator. A dual theory is developed for homotopy limits in ABC fibration categories and for left derivators. Th...
The activated B-cell-like (ABC) subtype of diffuse large B-cell lymphoma (DLBCL) relies on chronic active B-cell receptor (BCR) signaling. BCR pathway inhibitors induce remissions in a subset of ABC DLBCL patients. BCR microclusters on the surface of ABC cells resemble those generated following antigen engagement of normal B cells. We speculated that binding of lymphoma BCRs to self-antigens in...
ABC (Artificial Bee Colony) algorithm is one of the most popular approaches that is used in optimization problems. ABC overcomes other well-known heuristic methods, such as GA, PSO and DE (Differential Evolution). In this paper, we propose a hybrid ABC-DE algorithm that combines properties of ABC and DE approaches. The results show that our proposed algorithm is better than both ABC and DE and ...
A theoretical and numerical analysis of Liao's absorbing boundary condition (ABC) is presented. The form of the ABC is related to both space-time polynomial extrapolation and a one-way wave equation. A modi cation allowing the optimization of the ABC for speci c angles of incidence or wave speeds is discussed. The stability of the ABC is also discussed, and a technique is presented for enhancin...
در این مقاله، مسئلۀ برنامهریزی یکپارچۀ منابع (irp) با استفاده از نوعی مدل بهینهسازی با حداقل هزینه، مدلسازی شده است. در این مدل، تابع هدف مجموع هزینههای سرمایهگذاری، بهرهبرداری و تعمیرات و نگهداری منابع سمت تولید و همچنین هزینۀ اجرای برنامههای مدیریت بار است. قابلیت اطمینان سیستم، با استفاده از شاخص های مقدار انتظاری انرژی تأمین نشده (eens) و احتمال تأمین نشدن بار (lolp)، برآورد و تأمی...
Background: Many recent statistical applications involve inference under complex models, where it is computationally prohibitive to calculate likelihoods but possible to simulate data. Approximate Bayesian Computation (ABC) is devoted to these complex models because it bypasses evaluations of the likelihood function using comparisons between observed and simulated summary statistics. Results: W...
To realize an effective cost control, a practical and accurate cost accounting system is indispensable in hospitals. In traditional cost accounting systems, the volume-based costing (VBC) is the most popular cost accounting method. In this method, the indirect costs are allocated to each cost object (services or units of a hospital) using a single indicator named a cost driver (e.g., Labor hour...
در این پایان نامه به منظور تدوین نرم افزاری جهت طراحی چرخ پمپ سانتریفوژ، مقایسه ای بین نتایج حاصل از روشهای طراحی با نمونه های واقعی صورت گرفته است. برای طراحی چرخ از دو روش کلاسیک استپانوف، اولر و یک روش پیشنهادی جدید، که ترکیبی از دو روش کلاسیک استپانوف و لبانوف می باشد، استفاده شده است . همچنین برای کنترل تخمین تعداد پره ها، به جای روشهای معمول از تخمین ضریب لغزش و محاسبه آن از سه تئوری بوزم...
: Some feed ingredients bind more acid in the stomach than others and for this reason may be best omitted from pig starter foods if gastric acidity is to be promoted. The objective of this study was to measure the acid-binding capacity (ABC) of ingredients commonly used in pig starter foods. Ingredients were categorised as follows: (i) milk products (n = 6), (ii) cereals (n = 10), (iii) root an...
Purpose – The purpose of this paper is to show that by exploring the intellectual structure of activity-based costing (ABC) based on the citation database of Google Scholar, one can understand the evolution and core ideas of the ABC discipline. Design/methodology/approach – This study employs the document co-citation method to model the intellectual structure of ABC between 1988 and 2008. After...
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