نتایج جستجو برای: battery

تعداد نتایج: 45766  

2017
Marijn Jongerden Boudewijn Haverkort

Batteries are omnipresent, and with the uprise of the electrical vehicles will their use will grow even more. However, the batteries can deliver their required power for a limited time span. They slowly degrade with every charge-discharge cycle. This degradation needs to be taken into account when considering the battery in long lasting applications. Some detailed battery models that describe t...

2001
Luca Benini Giuliano Castelli Alberto Macii Riccardo Scarsi

0740-7475/01/$10.00 © 2001 IEEE March–April 2001 THE ACTIVITY OF SEVERAL COMPONENTS in a computing system is event-driven. For example, the activity of display servers, communication interfaces, and user interface functions is triggered by external events, and it is often interleaved with long, idle periods. An intuitive way to reduce average power dissipated by the whole system consists of shu...

2012
Gareth L. Jones Peter G. Harrison

In this paper we present Open Battery, a tool for collecting data on mobile phone battery usage, describe the data we have collected so far and make some observations. We then introduce the fluid queue model which we hope may prove a useful tool in future work to describe mobile phone battery traces. 1998 ACM Subject Classification D.4.8 Queueing theory

Ingestion of batteries by children became more frequent in recent years, due to the increasing accessibility of electronic toys and devices to children. We report a fatal evolution of battery ingestion in a 2-month-old boy.Lithium battery ingestion is a serious condition with high risk of life-threatening complications in childhood and it can be fatal especially in extreme age, under 6 months. ...

Lithium ion batteries are among the most used rechargeable batteries in the world. Carbon nanostructures including carbon nanotubes (CNTs) are considered as important electrode materials for this kind of batteries. Therefore improving the performance of these carbon based electrodes in Lithium ion batteries is an important issue and attracts much attention in the battery community. In this manu...

2014
Sotiris E. Nikoletseas Theofanis P. Raptis

In Wireless Rechargeable Sensor Networks, one or more special mobile entities (called the Mobile Chargers) traverse the network and wirelessly replenish the energy of sensor nodes, using wireless power transfer technology. In this paper, we present some state of the art algorithms that apply to characteristic problems in such networks, namely efficient use of wireless power transfer using i) on...

2008

Introduction Rechargeable batteries are present in a variety of devices. The act of recharging them generally involves a charger wired to a wall outlet being plugged into the device. The charger can determine the type of charge the batteries receive and therefore determine the cycle life of the batteries. Wireless power transfer is on the cutting edge of the battery charging world. There are el...

Journal: :international journal of occupational and environment medicine 0
k ravibabu regional occupational health centre (southern), nirmal bhavan, icmr complex, kannamangala (post), devanahalli, bangalore-562110, karnataka, india t barman regional occupational health centre (southern), nirmal bhavan, icmr complex, kannamangala (post), devanahalli, bangalore-562110, karnataka, india hr rajmohan regional occupational health centre (southern), nirmal bhavan, icmr complex, kannamangala (post), devanahalli, bangalore-562110, karnataka, india

background: the interaction between serum neuron-specific enolase (nse), biogenic amino-acids and neurobehavioral function with blood lead levels in workers exposed to lead form lead-acid battery manufacturing process was not studied. objective: to evaluate serum nse and biogenic amino-acids (dopamine and serotonin) levels, and neurobehavioral performance among workers exposed to lead from lead...

Journal: :iranian journal of science and technology (sciences) 2005
m. alavi

in this paper we present our studies using pauling electrostatic bond strength (esb) rules forstructural behaviour, cation vacancies, relation between x, y, and the valence of cations and coordinationin spinel compounds lixmn2o4, 0

Journal: :iranian journal of toxicology 0
سیامک پورعبدیان siamak pourabdian isfahan university of medical sciences, isfahan, iran. نسترن ایزدی مود nastaran eizadi-mood isfahan university of medical sciences, isfahan, iran. پرستو گلشیری parastoo golshiri isfahan university of medical sciences, isfahan, iran. فاطمه امینی fatemeh amini isfahan university of medical sciences, isfahan, iran.

background: hematological effects and digestive and neuro-psychological signs and symptoms are some manifestations of lead toxicity. however, there are conflicting reports of their prevalence among lead exposed workers and their relationship with blood lead levels (bll). this case- control study assessed the relationship between bll and hematological indexes and digestive (abdominal colic, iron...

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