نتایج جستجو برای: الگوریتم pesa ii

تعداد نتایج: 602261  

2013
Miqing Li Shengxiang Yang Xiaohui Liu Kang Wang

The Pareto envelope-based selection algorithm II (PESA-II) is a classic evolutionary multiobjective optimization (EMO) algorithm that has been widely applied in many fields. One attractive characteristic of PESA-II is its grid-based fitness assignment strategy in environmental selection. In this paper, we propose an improved version of PESA-II, called IPESA-II. By introducing three improvements...

روش‌های بهینه‌سازی چندهدفه به صورت گسترده‌ای در زمینه‌های مختلف علوم و مهندسی مورد توجه قرار گرفته است. در این مقاله، از الگوریتم بهینه‌سازی چندهدفه برای طراحی آرایش بهینه مجتمع‌های سوخت قلب رآکتور KWU با اهداف مسطح کردن توزیع توان در قلب رآکتور و افزایش ضریب تکثیر استفاده شده است. هم‌­چنین، تحلیل ترموهیدرولیکی به منظور بررسی آرایش جدید طی یک حادثه فرضی کاهش جریان خنک­‌کننده انجام شده است. برای...

امروزه استفاده از مدل­های هیدرولوژی، عمدتاً برای شبیه سازی تغییرات منبع آب و سیلان (شامل رواناب و تبخیر) ضروری به نظر می­رسد. مدلسازی خوب فرآیندهای هیدرولوژیکی با استفاده از مدل­های هیدرولوژی نیازمند تعیین پارامترهای مدل می­باشد. در فرآیند واسنجی (کالیبراسیون) مقادیر پارامترهای مدل طوری برآورد می­شوند که مدل به خوبی بتواند سیستم طبیعی را شبیه سازی نماید. موفقیت مدل­های موجود در شبیه سازی واقعیت ...

Journal: :Human reproduction update 1998
G I Meniru A Gorgy S Batha R J Clarke B T Podsiadly I L Craft

Four distinct studies were carried out using two data sets of percutaneous epididymal sperm aspiration (PESA) and intracytoplasmic sperm injection (ICSI) procedures performed from March 1993 to January 1997. In study A, an analysis of 181 ICSI treatment cycles following PESA revealed a successful epididymal sperm retrieval rate of 83%. It confirmed that PESA is an effective sperm retrieval meth...

2005
Daniel Kunkle

The following MOEA algorithms are briefly summarized and compared: • NPGA Niched Pareto Genetic Algorithm (1994) – NPGA II (2001) • NSGA Non-dominated Sorting Genetic Algorithm (1994) – NSGA II (2000) • SPEA Strength Pareto Evolutionary Algorithm (1998) – SPEA2 (2001) – SPEA2+ (2004) – ISPEA Immunity SPEA (2003) • PAES Pareto Archived Evolution Strategy (2000) – M-PAES Mimetic PAES (2000) • PES...

2017
Chen Wang Baoyu Gao Pin Zhao Ruihua Li Qinyan Yue Ho Kyong Shon

Polyepoxysuccinic acid (PESA) is a green corrosion scale inhibitor. When PESA is used for wastewater desalination in the forward osmosis (FO) process, the diluted PESA solution could be used for cooling systems. In our investigation, the effects of membrane orientation, temperature and flow rate on FO performance are studied using PESA as a draw solute. The results show that the effect of tempe...

The main purpose of this study is to provide three simulation-based risk management models for optimal placement of wind turbines in Khodabandeh city (located in the south of Zanjan province) taking into account the wake effect and uncertainty in wind speed and direction. For this purpose, wind speed and direction data were collected, then wind speed and direction uncertainty was modeled by Mon...

2017
Silvia Ferrara Marilena Falcone Raffaella Macchi Alessandra Bragonzi Daniela Girelli Lisa Cariani Cristina Cigana Giovanni Bertoni

Small non-coding RNAs (sRNAs) are post-transcriptional regulators of gene expression that have been recognized as key contributors to bacterial virulence and pathogenic mechanisms. In this study, we characterized the sRNA PesA of the opportunistic human pathogen Pseudomonas aeruginosa. We show that PesA, which is transcribed within the pathogenicity island PAPI-1 of P. aeruginosa strain PA14, c...

Journal: :International braz j urol : official journal of the Brazilian Society of Urology 2003
Sidney Glina Jorge B Fragoso Fernando G Martins Jonathas B Soares Andrea G Galuppo Roberta Wonchockier

OBJECTIVES Assessing the efficiency of repeated percutaneous epididymal sperm aspiration (PESA) in men with obstructive azoospermia, and also the possibility of cryopreservation of remaining material for future use in intracytoplasmic sperm injection (ICSI). METHOD Retrospective study, in which 79 procedures of PESA were assessed in 58 patients (mean age = 45 years), whose partners had mean a...

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