نتایج جستجو برای: cellular phones

تعداد نتایج: 451599  

Journal: :IEEJ Transactions on Electronics, Information and Systems 2005

2007
Yuu Nakajima Takatoshi Oishi Toru Ishida Daisuke Morikawa

Navigation services for pedestrians are spreading in recent years. Our approach to provide personal navigation is to build a multiagent system that assigns one guiding agent to each human. This paper attempts to demonstrate a design implication of the guiding agent. In the navigation experiment where a pedestrian using a map on a GPScapable cellular phone was guided by a distant navigator, we o...

2002
Haiming Yang Julita Vassileva

The demand for access to the Internet by mobile users is increasing. Recent emergence of low-cost wireless appliances made it possible to surf the Internet with handheld devices. One of the competing technologies is the use of WAP (Wireless Application Protocol) phones. However, due to limited processing and memory capacity, small display and inefficient input mechanism, it is a challenge to se...

2016
Aamir Shahzad René Landry Malrey Lee Naixue Xiong Jongho Lee Changhoon Lee

Substantial changes have occurred in the Information Technology (IT) sectors and with these changes, the demand for remote access to field sensor information has increased. This allows visualization, monitoring, and control through various electronic devices, such as laptops, tablets, i-Pads, PCs, and cellular phones. The smart phone is considered as a more reliable, faster and efficient device...

2006
LENNART HARDELL MICHAEL CARLBERG

The use of cellular and cordless telephones and the risk of brain tumours is of concern since the brain is a high exposure area. We present the results of a pooled analysis of two case-control studies on benign brain tumours diagnosed during 1997-2003 including answers from 1,254 (88%) cases and 2,162 (89%) controls aged 20-80 years. For acoustic neuroma, the use of analogue cellular phones gav...

1997
Gina Kolata

The good news is that cellular phones do not cause brain cancer. The bad news? They are unfortunately a cause of car accidents. In fact, according to research by Drs. Donald A. Redelmeier and Robert J. Tibshirani, driving with the use of a cell phone can be likened to driving with a blood alcohol level of about 0.10 per cent. The chances of getting into an car accident while using a cellular ph...

Journal: :Bioelectromagnetics 2009
Ki Chang Nam Ju Hyung Lee Hyung Wook Noh Eun Jong Cha Nam Hyun Kim Deok Won Kim

With the number of cellular phone users rapidly increasing, there is a considerable amount of public concern regarding the effects that electromagnetic fields (EMFs) from cellular phones have on health. People with self-attributed electromagnetic hypersensitivity (EHS) complain of subjective symptoms such as headaches, insomnia, and memory loss, and attribute these symptoms to radio frequency (...

Journal: :Brazilian journal of otorhinolaryngology 2008
Aracy Pereira Silveira Balbani Jair Cortez Montovani

UNLABELLED Telecommunications systems emit radiofrequency, which is an invisible electromagnetic radiation. Mobile phones operate with microwaves (450900 MHz in the analog service, and 1,82,2 GHz in the digital service) very close to the users ear. The skin, inner ear, cochlear nerve and the temporal lobe surface absorb the radiofrequency energy. AIM literature review on the influence of cell...

Journal: :The Journal of the Society for Art and Science 2004

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