نتایج جستجو برای: electronic equipment

تعداد نتایج: 298055  

2000
A. S. Jannati

The influence of voltage and current harmonics on equipment connected to electrical supply systems can cause serious problems. This paper presents a synopsis of the problem. The equipment most sensitive to harmonics is considered, such as -asynchronous motors, synchronous machines, transformers, capacitors, ripple control receivers, electricity meters, radio receivers, TV-sets, electronic contr...

2014
Yang Sen Meng Chen Lv Meng

In order to improve the validity of electronic equipment condition monitoring, overcome the shortage of normal KPCA (Kernel Principal Component Analysis) and SVDD (Support Vector Data Description) monitoring model, a method on electronic equipment condition monitoring based on KPCAEDA (KPCAEstimation of Distribution Algorithm) and MMSH-SVDD (Maximal Margin Separating Hypersphere SVDD Mode) is p...

Journal: :Waste management 2015
Shengen Zhang Yunji Ding Bo Liu De'an Pan Chein-chi Chang Alex A Volinsky

Waste electrical and electronic equipment (WEEE) has been one of the fastest growing waste streams worldwide. Effective and efficient management and treatment of WEEE has become a global problem. As one of the world's largest electronic products manufacturing and consumption countries, China plays a key role in the material life cycle of electrical and electronic equipment. Over the past 20 yea...

2001
Leon Wong

As our society makes the transition into the digital age, electronics manufacturers are constantly pushing newer and better electronic equipment onto the market to satisfy customer demands for newer technology. Yet when this new stream of products makes its way into homes, older electronic equipment will, as a consequence, be discarded. Currently, several manufacturers have begun to initiate pr...

ژورنال: محاسبات نرم 2013
اصغری, سید امیر, طاهری, حسن, عبدی, آتنا, پدرام, حسین,

Electronic devices in space applications may be Radiation Tolerant or Commercial off-the Shelf (COTS). Due to cost and unavailability in many applications, the latter is usually used. In applications such as spatial ones, the COTS equipment lacks reliability against threats like heavy ion radiation therefore, some alternatives should be considered to make the equipment resistant against the pro...

2011
Chris Muller

Corrosion-induced failures remain frequent in electronics products used in industrial environments. The International Society for Automation (ISA) Standard 71.04-1985 provides a classification system using corrosion (or reactivity) monitoring to determine the corrosive potential of an environment towards electronic equipment. Changes to electronic equipment mandated by the European Union direct...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1387

چکیده ندارد.

Journal: :Jornal de pediatria 2015
Gerson Luis de Moraes Ferrari Timóteo Leandro Araújo Luis Carlos Oliveira Victor Matsudo Mauro Fisberg

OBJECTIVE To describe the association between electronic devices in the bedroom with sedentary time and physical activity, both assessed by accelerometry, in addition to body mass index in children from São Caetano do Sul. METHODS The sample consisted of 441 children. The presence of electronic equipment (television, personal computer, and videogames) in the bedroom was assessed by a question...

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