نتایج جستجو برای: radio frequency identificationprinted circuit boards

تعداد نتایج: 657311  

2006
M. F. Lu S. Y. Chang

-A non-revivable Privacy Protection Circuit is proposed and designed in a low frequency passive Radio Frequency Identification (RFID) transponder. The main component of the non-revivable Privacy Protection Circuit is a poly fuse. The fuse acts as a switch and will be burn out when the function of transponder must be disabled. The broken fuse can not be repaired and prohibit the power required f...

2015
Bing Wang

This paper presents a new compact end-fire antenna for ultra-high frequency (UHF) radio frequency identification (RFID) applications. The antenna has two meandered dipole drivers. A folded reflector and a rectangular reflector are demonstrated. The advantage of the end-fire antenna with meander dipole drivers compared to the conventional quasi-Yagi antenna is a reduction in the length of the dr...

Journal: :environmental health engineering and management 0
mohammad aali dehchenari student research committe, islamic azad university of majlesi, isfahan, iran saeed hosseinpoor young researchers and elite club, majlesi branch, islamic azad university, isfahan, iran rahim aali department of environmental health engineering, faculty of nursing and health, urmia university of medical sciences, urmia, iran nilowfar salighehdar department of health education and health promotion, tehran university of medical sciences, tehran, iran mohsen mehdipour environmental health engineering and member of environmental health engineering research center, kerman university of medical sciences, kerman, iran

background: this research studied the feasibility of a simple method for extracting gold from central processing units (cpus) of computer circuit boards without solvent. methods: ceramic and composite cpus of computer circuit boards were used. gold was extracted using a hydrometallurgical method in six stages: grinding of cpus, leaching in nitric acid, leaching in aqua regia, removing the exces...

2010
Katherine Albrecht

This paper reviews literature published in oncology and toxicology journals between 1990 and 2006 addressing the effects of implanted radio-frequency (RFID) microchips on laboratory rodents and dogs. Eleven articles were reviewed in all, with eight investigating mice and rats, and three investigating dogs. In all but three of the articles, researchers observed that malignant sarcomas and other ...

2014
Anja Znidarsic Borut Werber

This paper investigates the possibility of introducing subcutaneous microchip radio frequency identification device (RFID) as a substitute for personal documents and credit cards. Microchips are used for many years for different purposes in production and sale, medicine and also to identify some domestic animals. In the study we were interested in whether people in Slovenia would be willing to ...

2008
Steve Hinske Marc Langheinrich Yves Alter

We report on the construction of real-world dice equipped with radio frequency identification (RFID) technology that support the automated readout and processing of rolled results. Such augmented dice help to build “smart” tabletop games that are able to unobtrusively detect the players’ actions, allowing them to better focus on the gameplay and the social interaction with other players. Since ...

Journal: :journal of paramedical sciences 0
majid mahdavi department of biology, faculty of natural science, university of tabriz, tabriz, iran. reza yekta department of biology, faculty of natural science, university of tabriz, tabriz, iran. saeed hesami tackallou department of biology, garmsar branch, islamic azad university, tehran, iran.

extremely low frequency (elf) electromagnetic field (elf-emfs) are widely employed in electrical appliances and different equipment such as television sets, elf-emfs can  affect biological systems by increasing production  ros. the altered balance between ros generation and elimination plays a critical role in a variety of pathologic conditions. ros levels have been observed in several hematopo...

2002
Ralf E. Schuh Peter Eneroth Peter Karlsson

This paper presents an investigation of a radio receiver architecture to enable multi-standard (GPRS, WCDMA, HiperLAN2) implementation in mobile terminals. The architecture uses partial radio band digitisation at an intermediate frequency. Following circuit progress and industry trends (e.g. Moore’s law) we estimate components for the proposed architecture with acceptable power consumption to b...

2012
Negin Shahshahan Neil Goldsman

Title of thesis: RESONANT CIRCUIT TOPOLOGY FOR RADIO FREQUENCY ENERGY HARVESTING Negin Shahshahan, Master of Science, 2012 Directed by: Professor Neil Goldsman Department of Electrical and Computer Engineering In this work the operation of a MOSFET based rectifier, composed of multiple stages of voltage doubler circuits used for radio frequency (RF) energy harvesting, is investigated. Analytica...

2013
Abhishek Bhat Jonathan Rodriguez Hua Qin Hyun Cheol Shin Hyuncheol Shin Joerg Clobes Dustin Kreft Jonghoo Park Eric Stava Minrui Yu Robert H. Blick

We present first results from a hybrid coplanar waveguide microfluidic tank circuit for monitoring lipid bilayer formation and fluctuations of integrated proteins. The coplanar waveguide is a radio frequency resonator operating at ~250 MHz. Changes within the integrated microfluidic chamber, such as vesicle bursting and subsequent nanopore formation alter the reflected signal, and can be detect...

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