نتایج جستجو برای: potential failure mode (pfm)

تعداد نتایج: 1601475  

Journal: :international journal of human capital in urban management 0
b. akbari neisiani department of management and economics, science and research branch, islamic azad university, tehran, iran s.m. seyedan department of management, kharazmi university, tehran, iran a. hadian department of management and industrial engineering, payame noor university , north of tehran, tehran, iran

every year, many accidents leading to physical injuries in kindergartens, indicates that a very large percentage of them are related to the safety concerns and lack of hygiene in these places. families, due to their busy life style and working hours and also children needs of preschool education, are searching to find most suitable kindergartens for their children. selecting a kindergarten with...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1381

‏‎fmea‎‏ اختصار عبارت ‏‎failure mode and effect analysis‎‏ بوده و روشی فنی و مهندسی سیستماتیک برای شناسایی و پیشگیری از وقوع خطاها و ریسکهای بالقوه و بالفعل در سیستمها طراحی محصول و فرآیندهای تولید محصول و ارائه خدمات می باشد. تجزیه و تحلیل عوامل شکست در فرآیندهای تولید ‏‎pfmea‎‏ یکی از انواع ‏‎fmea‎‏ بوده و معمولا با انجام یافتن چند مرحله شامل بررسی شرایط محیطی ، نیروی انسانی ، روشهای انجام کا...

2002
Keiichiro Kagawa Norikatsu Yoshida Tetsuo Furumiya Jun Ohta Masahiro Nunoshita

In this paper we discuss an application of CMOS photo-sensor array chip using pulse frequency modulation (PFM) to sub-retinal implantation to recover human vision. PFM with integration mode as photo-sensing circuit is used to realize enough dynamic range and compatibility with signals in real retina. To effectively stimulate the retinal cells, we have designed a PFM circuit with limited bandwid...

2006
Q. R. YIN H. R. ZENG H. F. YU G. R. LI

Three kinds of near-field microscopy imaging mode including SEAM (Scanning electron acoustic microscopy), PFM (Piezoresponse force microscopy) and SPAM (Scanning probe acoustic microscopy) have been developed to investigate domain structures of ferroelectric ceramics, crystals and thin films in our studies. The domain imaging mechanisms are presented individually in three imaging modes. Sub-sur...

2016
Ekhard K. H. Salje Marin Alexe Sergey Kustov Mads C. Weber Jason Schiemer Guillaume F. Nataf Jens Kreisel

Polar tweed was discovered in mechanically stressed LaAlO3. Local patches of strained material (diameter ca. 5 μm) form interwoven patterns seen in birefringence images, Piezo-Force Microscopy (PFM) and Resonant Piezoelectric Spectroscopy (RPS). PFM and RPS observations prove unequivocally that electrical polarity exists inside the tweed patterns of LaAlO3. The local piezoelectric effect varies...

2002
Jun Ohta Norikatsu Yoshida Keiichiro Kagawa Masahiro Nunoshita

In this paper, we propose and discuss an application of a CMOS vision chip using pulse frequency modulation to sub-retinal implantation to partially recover human vision. In sub-retinal approaches, a photo-sensor buried underneath the retina converts light distribution of the image projected on a retina surface to electric signals, and stimulates the horizontal cells or neurons behind them [1],...

Journal: :Neurourology and urodynamics 2006
Judith A Thompson Peter B O'Sullivan N Kathryn Briffa Patricia Neumann

AIMS To investigate the muscle activation patterns of the abdomino-pelvic region used by incontinent women during a pelvic floor muscle (PFM) contraction and a Valsalva manouevre compared to healthy, asymptomatic subjects. METHODS Thirteen incontinent (symptomatic) women, identified using ultrasound to be consistently depressing the bladder base during PFM contraction, and thirteen continent ...

Journal: :Canadian Urological Association journal = Journal de l'Association des urologues du Canada 2010
Andrea Marques Lynn Stothers Andrew Macnab

There is no consensus on the amount of exercise necessary to improve pelvic floor muscle (PFM) function. We reviewed the pathophysiology of PFM dysfunction and the evolution of PFM training regimens since Kegel introduced the concept of pelvic floor awareness and the benefits of strength. This paper also describes the similarities and differences between PFM and other muscular groups, reviews t...

Journal: :Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada 2006
Sergei V Kalinin Brian J Rodriguez Stephen Jesse Junsoo Shin Arthur P Baddorf Pradyumna Gupta Himanshu Jain David B Williams Alexei Gruverman

A novel approach for nanoscale imaging and characterization of the orientation dependence of electromechanical properties-vector piezoresponse force microscopy (Vector PFM)-is described. The relationship between local electromechanical response, polarization, piezoelectric constants, and crystallographic orientation is analyzed in detail. The image formation mechanism in vector PFM is discussed...

Journal: :Mathematics 2022

In this research, we address the problem of evaluating physical stability (PS) to close tailings dams (TD) from medium-sized Chilean mining using artificial intelligence (AI) algorithms. The PS can be analyzed through study critical variables TD that allow estimating different potential failure mechanisms (PFM): seismic liquefaction, slope instability, static overtopping, and piping, which may ...

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