نتایج جستجو برای: ac machine

تعداد نتایج: 297107  

Journal: :IJEOE 2015
Imene Yahyaoui Maher Chaabene Fernando Tadeo

A proposal for energy management in an off-grid photovoltaic pumping and irrigation system is presented and evaluated for a specific case study. The system is assumed to be based on off-the-shelf components (photovoltaic panels, battery banks, DC/AC converters, relays, submergible pumps, etc.), with a microcontroller-based energy management system, deciding when to disconnect the load from the ...

Journal: :The Journal of antibiotics 1989
K Oishi K Matsumoto M Yamamoto T Morito T Yoshida

We evaluated the ingestion of anti-sheep erythrocyte (anti-E) IgG- and IgM-coated sheep erythrocytes by murine peritoneal macrophages exposed to cefodizime, a new semisynthetic cephalosporin, and other antibiotics. Cefodizime enhanced the ingestion of anti-E IgG-coated erythrocytes by peritoneal macrophages from CD-1 and BALB/c mice in a dose-dependent manner, but had no effect on uncoated or I...

2017
Evaldas Vaiciukynas Antanas Verikas Adas Gelzinis Marija Bacauskiene

This study investigates signals from sustained phonation and text-dependent speech modalities for Parkinson's disease screening. Phonation corresponds to the vowel /a/ voicing task and speech to the pronunciation of a short sentence in Lithuanian language. Signals were recorded through two channels simultaneously, namely, acoustic cardioid (AC) and smart phone (SP) microphones. Additional modal...

Journal: :IOP Conference Series: Materials Science and Engineering 2021

Journal: :UPI YPTK Journal of Computer Scine and Information Technology 2022

Technological advances greatly impact the continuity and comfort of human life, for example use air conditioners (AC). AC is a room conditioning tool that able to condition in provide comfortable effect on body. Air (AC) system or machine designed stabilize temperature humidity certain area by circulating refrigerant gas through refrigeration process. The research framework created this methodo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

در سیستم های قدرت همواره شاهد اغتشاشات توان خواهیم بود. این اغتشاشات می تواند ناشی از بروز خطا در سیستم توزیع، عملکرد تجهیزات محلی، حالات گذرای کلیدزنی در شبکه، فرسودگی تجهیزات، طوفان، صاعقه و موارد متعدد دیگری باشد. این مسئله با افزایش بارهای غیر خطی در سال-های اخیر تشدید شده است. اغتشاشات بوجود آمده از قبیل نویز های الکتریکی، ولتاژ های سوزنی و نوسانات ولتاژ ممکن است از حد مجاز دستگاه های الکت...

2006
Abdul Kadir

—Fault diagnostics of induction machines have been widely researched however, an integrated motor control with automated fault detection, prevention and condition monitoring is still missing. Condition monitoring can reduce the downtime of the processes and increase the maximum interval between failures, thus minimizing the number and cost of unscheduled maintenances, which is highly beneficial...

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