This paper proposed a novel EPC (Electronic Product Code) UHF RFID tag architecture to transmit both EPC code and sensor data. The RFID tag module contains a RF transceiver, command interpreter and digital anti-collision finite state machines, and sensor data input interface. The demo circuits were realized by combining an ALTERA Cyclone II EP2C5T144C7 FPGA chip with a hybrid RF front-end circu...

Radio-frequency identification (RFID) is a tracking technology that enables immediate automatic object identification and rapid data sharing for a wide variety of modern applications using radio waves for data transmission from a tag to a reader. RFID is already well established in technical areas, and many companies have developed corresponding standards and measurement techniques. In the cons...

Microplate readers have been useful assistants of researchers for several decades. This work is focused on the applications of a simple absorbance microplate reader in yeast physiology research, and its advantages and limitations in comparison with alternative methods are discussed. The two main procedures involved are measuring growth curves and monitoring the pH changes of medium using two di...

A system for automatic Enzyme-Linked Immunosorbent Assay (ELISA) data collection and processing is described. Hardware for the system consists of a Dynatech microplate reader and Apple II series microcomputer. Software developed by the authors allows automatic configuration of the reader and direct data input from the microplate reader to the microcomputer. After optical density data is input t...

PURPOSE The purpose of this study is to compare the visibility of microcalcifications of digital breast tomosynthesis (DBT) and full-field digital mammography (FFDM) using breast specimens. MATERIALS AND METHODS Thirty-one specimens' DBT and FFDM were retrospectively reviewed by four readers. RESULTS The image quality of microcalcifications of DBT was rated as superior or equivalent in 71.0...

A recent development in Wireless Sensor Networks (WSNs) research is to equip sensor nodes with an RFID reader so that they can be used to track animate or in-animate RFID tagged objects. A key problem in such networks, however, is the energy efficiency of current RFID anti-collision protocols. Specifically, the energy cost incurred by a RFID reader to read and monitor n tags. This paper, theref...

Radio Frequency Identification (RFID) technology uses radio-frequency waves to automatically identify people or objects. A large volume of data, resulting from the fast capturing RFID readers and a huge number of tags, poses challenges for data management. This is particularly the case when a reader simultaneously reads multiple tags and Radio Frequency (RF) collisions occur, causing RF signals...

Since stroke components are the most basic structural featurea of patterns like ch.aracters or linea in im.ages. Prom a tiieui point of bein.g applicable to docum.en.t image understandin.g, it ia necessary to provide a good represen.tation th.at can. express such features, so th,at an interpretation of im.ages can be facilita.ted. Th.is article pre,qen.ta a new tech,n.ique used for ezpressin.g ...

Radio frequency identification (RFID) is an emerging wireless communication technology which allows objects to be identified automatically. An RFID system consists of a set of readers and several objects, equipped with small and inexpensive computer chips, called tags. In a dense RFID system, where several readers are placed together to improve the read rate and correctness, readers and tags ca...

Purpose – This study seeks to evaluate a selection of second-generation ebook readers in order to determine which devices deliver the best experience for the user, in terms of functionality and overall experience. The technical and physical elements of the devices are also compared. Design/methodology/approach – This paper starts with a brief discussion of the current ebook marketplace, and pre...