نتایج جستجو برای: pfm control

تعداد نتایج: 1329645  

2009

MRI has been used in the diagnostic evaluation of the pelvic floor dysfunctions. Static images show their morphology while dynamic images show the functional changes that occur on straining and contraction of the levator ani. With dynamic images, displacement of organs and pelvic floor muscles can be computed in three planes (axial, sagital and coronal) [1]. The purpose of this study is to comp...

2004
Won-Seok Oh Seung-Eun Lee Jin Park Sung-Chul Lee Jong-Chan Choi

Abstract In this paper, we describe a CMOS DC-DC converter with a variable output voltage (8-12V @100mA) for a portable battery-operated system applications. The proposed DC-DC converter is used along with a Pulse-Frequency Modulation (PFM) method and consists of a reference circuit, a feedback resistor, a controller, and an internal oscillator. The integrated DC-DC converter with two external ...

2002
Michael C. DiTolla

More than forty years after their development, porcelain-fused-to-metal (PFM) restorations remain the clinical standard to which other esthetic dental materials are measured. One of the drawbacks of PFM restorations is the difficulty with making them appear lifelike when viewed adjacent to natural teeth. All-ceramic restorations have become a welcome addition to the restorative armamentarium as...

2010
Janet B. Quinn George D. Quinn Veeraraghaven Sundar

Veneering ceramics designed to be used with modern zirconia framework restorations have been reported to fracture occasionally in vivo. The fracture toughness of such veneering ceramics was measured and compared to that of conventional feldspathic porcelain veneering ceramics for metal framework restorations. The fracture toughness of the leucite free veneer was measured to be 0.73 MPa m ± 0.02...

2012
E. Malakan Rad

We report the fracture of a 4×4 Nit-Occlud pfm coil in a child with patent ductus arteriosus (PDA), bicuspid aortic valve, and coarctation, detected three years after deployment without any adverse consequent. This report emphasizes the importance of adherence to the user guidelines of the company for the implementation of the device and also shows the significance of lateral chest X-ray in the...

Journal: :Advances in transdisciplinary engineering 2023

In this work, a new approach for forecasting the remaining useful lifespan (RUL) of mechanical structure is described, which combines phase-field method (PFM) technology and neural network (NN) technology. Firstly, brittle fracture damage model established according to PFM. And sample data, are strain value at observation locations model, obtained by numerical simulation. Then, set input into N...

Journal: :Taehan Kanho Hakhoe chi 2004
Jeungim Kim

PURPOSE The elderly with UI experienced urine leakage for a long time. The prevalence of UI has increased and it makes costly. Particularly, the elderly were reluctant to visit a hospital or a clinic for the reasons of modesty and poverty. To solve this problem, incontinence intervention programs should be provided at the elderly welfare center. The purpose of this research was to develop Incon...

Journal: :Journal of geriatric medicine and gerontology 2023

Deconditioning of the core muscles, including abdominal and pelvic floor muscles (PFM), increases predisposition to injury, incontinence, sexual dysfunction diminishes quality life. As a monotherapy, HIFEM effectively strengthens PFM and, in synergy with radiofrequency (RF), fortifies muscles. Thus this study aimed investigate effectiveness treatments on improvement muscle strength

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده برق و کامپیوتر 1391

مبدل هایdc-dc سوئیچینگ مجتمع با ولتاژ کم نقش بسیار مهمی در کاربردهای قابل حمل تغذیه شونده با باتری مانند تلفن های سلولی، pda ها، دوربین های دیجیتال، لپ تاپ ها و... ایفا می-کنند. حفظ بازده بالا در محدوده وسیع از جریان بار، زمان استفاده از باتری تجهیزات تغذیه شونده با باتری را افزایش می دهد. یکی از راه های افزایش بازده در محدوده وسیعی از جریان بار، استفاده از منبع تغذیه سوئیچ شونده با چندین حالت ...

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