نتایج جستجو برای: pert

تعداد نتایج: 705  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده کشاورزی 1390

در تحلیل و ارزیابی سیستم ها بخصوص در بخش کشاورزی از شاخص هایی همچون انرژی، اقتصاد، ارگونومی، سلامت محیط زیست و زمان استفاده می شود. با توجه به اهمیت شاخص زمان جهت کاهش هزینه های از دست دادن زمان و کاهش لنگی های حین کار، تکنیک های زمان بندی پروژه و مطالعه کار، بویژه مدل های شبکه ای به منظور بررسی دقیق روش انجام کار، کاهش حجم کار و در نتیجه آن، کاهش زمان انجام کار، کاربرد دارند و برای طرح ریزی عل...

Journal: :Lancet 1991
G Morrison J Morrison A Redmond C Byers K McCracken J A Dodge

Approximately 95% of patients in Northern Europe are pancreatic insufficient due to an inadequacy of their own pancreatic enzyme secretions (Littlewood et al, 2006). These patients need to take pancreatic enzyme replacement therapy (PERT) in order to prevent the symptoms of fat malabsorption. These symptoms include frequent pale, oily and offensive stools, abdominal pain, poor growth and defici...

1999
C. P. Moca I. Tifrea M. Crisan

We showed that an electronic system with weak disorder considered in the finite-charge infinite U Hubbard model can present a non-Fermi behavior. The imaginary pert of the self-energy has been calculated and a linear temperature dependence was obtained. This result is in agreement with the non-Fermi behavior observed at the insulator-metal crossover in La 2−x Sr x CuO 4 .

2001
I. Martinez

Function-based reasoning (FR) has typically been applied to capture causal understanding of devices. We are applying and extending the FR approach to capture fabrication plans for manufactured artit’acts. Our goal is to develop a framework for conceptual planning of c~mposite structures manufacturing; our testbed is fabrication planning for c~npositc structural elements in an unmanned aerial ve...

2012
Marco Araújo

This paper presents a novel method to evaluate the economic feasibility of Fiber-to-the-Home networks resorting to state-of-the-art techniques. The method presented in this paper is a powerful combination of game theory, advanced capital budgeting algorithms with real options and Monte Carlo simulations with complex statistical distributions to evaluate project risk. Index Terms — FTTH, Game th...

Journal: :British Journal of Surgery 2021

Abstract Background Acute pancreatitis is among the most common acute gastrointestinal diseases. Severe (SAP) develops in up to 20% of patients and associated with increased morbidity mortality. Patients may have long complex hospital admissions; nutritional support a cornerstone management. Due metabolic demands development pancreatic exocrine insufficiency (PEI) frequently endure excessive we...

Journal: :Applied Mathematical Modelling 2011

2006
Tomasz Babczynski Jan Magott

The following analytical approaches: queuing network models, stochastic automata networks, stochastic timed Petri nets, stochastic process algebra, Markov chains can be used in performance evaluation of multi–agent systems. In this paper, new approach which is based on PERT networks is presented. This approach is applied in performance evaluation of layered multi–agent system. Time-out mechanis...

Journal: :J. Scheduling 2010
Jérôme Fortin Pawel Zielinski Didier Dubois Hélène Fargier

This paper reconsiders the PERT scheduling problem when information about task duration is incomplete. We model uncertainty on task durations by intervals. With this problem formulation, our goal is to assert possible and necessary criticality of the different tasks and to compute their possible earliest starting dates, latest starting dates and floats. This paper puts together various results ...

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