ID Data Research Articles

Large scale testing and statistical analysis of dynamic fracture toughness of ductile cast iron

The present paper deals with the experimental determination and statistical analysis of dynamic fracture toughness values of ductile cast iron. K Id data from 140 mm thick single edge bend specimens of two dynamic fracture toughness test series on ductile cast iron from heavy-walled castings were analysed. At first, the statistical analysis of data at −40 °C was done based on ASME Code Case N-670 using a two-parameter Weibull distribution function. Weibull analyses of three samples covering different pearlite contents (⩽4%, ⩽9%, ⩽20%) were performed and characteristics of the distribution functions as well as two-sided confidence intervals were calculated. The calculated characteristics show that K Id of ductile cast iron decreases with increasing pearlite content. In a second step, the applicability of the Master curve procedure according to ASTM E 1921 to ductile cast iron materials was investigated and it was formally used for statistical analysis of ductile cast iron dynamic fracture toughness data. Although the Master curve method was originally introduced for static fracture toughness data of ferritic steels, the successful individual analyses performed here support the engineering way taken to apply the method to ductile cast iron materials too. The results of both methods, the Master curve procedure and the ASME Code Case N-670, show acceptable congruity. At the same time, it is concluded from the present study that further investigations and experiments are required to improve precision and for verification before the results could be applied within component safety analyses.

A framework for beef traceability from farm to slaughter using global standards: An Irish perspective

A system that can be used to identify all aspects of beef traceability from farm to slaughter has been laid out based on pertinent European Union law and global standards. An integrated traceability system involving all of the stakeholders along the supply chain can serve to increase consumer confidence in beef products by making traceability data accessible to the consumer. The use of radio frequency identification (RFID) for the identification of individual cattle, and biometric identifiers for verification of cattle identity has been proposed. The use of a BioTrack database for the storage of retinal images has been outlined. A data structure for RFID tags has been proposed in accordance with ISO 11784 and a middleware to convert animal ID data to the EPC (electronic product code) data structure, in order to facilitate the use of EPCglobal Network for the exchange of traceability data.

画像処理・符号化とアプリケーション 信号面積の多値化を利用した電子透かし画像の情報量改善

Digital watermarking technology is often used to embed ID data in analog content (such as an image on printed material), and recently, many algorithms have been proposed for using a camera-equipped cellular phone to detect watermarks in a captured image. One of these, based on information embedding in a frequency space has the advantage of robustness against a partial distortion of the captured image, but it is hampered by a low limit of embedded information quantity. A watermarking method for improving the embedded information quantity by using multiple-valued area of signals is proposed. Multiple-value conversion in the signal area greatly increases the amount of embedded information compared with the conventional binarization algorithm. Experimentation with actual natural images demonstrated the feasibility of the proposed algorithm.

MF144 視覚障害者向け情報付き立体地図(MF14 情報・コミュニケーション支援,あたり前のことを知る)

At the school for visually-impaired students, the means for them to study geography is considerably limited, and the teaching materials which can be used to learn various map information by tactile sensing are seriously demanded. In this presentation, to meet the demands, a new touch map system is proposed as a solution, which is composed of 3D geographical map, IC tags embedded at the specific locations in the map, a reader/writer device which is wearable at the nail on forefinger and can read the ID data in the IC tags with the finger touching the map, and a sound output system to read out various data and messages on specific locations by a speaker.

Communication Scheme for a Highly Collision-Resistive RFID System

A highly collision-resistive RFID system multiplexes communications between thousands of tags and a single reader in combination with time-domain multiplexing code division multiple access (TD-CDMA), CRC error detection, and re-transmission for error recovery. The collision probability due to a random selection of CDMA codes and TDMA channels bounds the number of IDs successfully transmitted to a reader during a limited time frame. However, theoretical analysis showed that the re-transmission greatly reduced the collision probability and that an ID error rate of 2.5 × 10-9 could be achieved when 1,000 ID tags responded within a time frame of 400 msec in ideal communication channels. The proposed collision-resistive communication scheme for a thousand multiplexed channels was modeled on a discrete-time digital expression and an FPGA-based emulator was built to evaluate a practical ID error rate under the presence of background noise in communication channels. To achieve simple anti-noise communication in a multiple-response RFID system, as well as unurged re-transmission of ID data, adjusting of correlator thresholds provides a significant improvement to the error rate. Thus, the proposed scheme does not require a reader to request ID transmission to erroneously responding tags. A reader also can lower noise influence by using correlator thresholds, since the scheme multiplexes IDs by CDMA-based communication. The effectiveness of the re-transmission was confirmed experimentally even in noisy channels, and the ID error rate derived from the emulation was 1.9 × 10-5. The emulation was useful for deriving an optimum set of RFID system parameters to be used in the design of mixed analog and digital integrated circuits for RFID communication.

2P1-C31 RFIDシステムによる自己位置推定へのサポートベクターマシンの適用

The Radio Frequency Identification (RFID) system comes to be used for the self-localization of a mobile robot. A lot of RFID tags are distributed and fixed on the floor. Using a look-up table which relates the ID data of each tags with their position on the floor, the position of a reader device is easily obtained when it reads the ID data from a tag. However it is rather tedious and difficult for us to construct and to maintain this look-up table. This paper proposes a method of self localization using support vector machines (SVMs). Manual construction of the look-up table is not required. The performance and the accuracy of the method are obtained in simulation under different arrangement patterns of tags. The method works even when several malfunctioned tags are included.

Stilbenoids with One Epoxy Group from Cotylelobium lanceolatum

A phytochemical investigation of an acetone extract of Cotylelobium lanceolatum stem resulted in the isolation of two orange pigments-two stilbene trimer derivatives, cotylelophenols D and E and an artifact derivative, cotylelophenol F. The structure and relative configuration were confirmed by ID and 2D NMR spectral data. Cotylelophenols D and E are the first examples of stilbene oligomers bearing an epoxy group. The biogenetic relationships between the isolates are also discussed.

A note on using electronic identification technology to measure the motivation of sheep to obtain resources at pasture

Electronic animal identification was used to register when sheep moved from one place to another. Non-return gates were used to control the direction of travel of the sheep past electronic identification antennas at the boundary between two areas. A personal computer program was written to control the network of identification readers and to log the ID data together with time stamps of when the IDs were captured. This allowed automatic monitoring of the periods spent by the sheep in the two areas. Forty-nine out of 50 sheep learnt to use the non-return gates when offered a concentrate feed reward during training. The method allowed error-free measurement of sheep movements between paddocks. A race could be added to the non-return gate to increase the level of work required to obtain access to another area. This would allow measurements of the motivation of sheep to obtain pasture resources and thus test the strength of diet preference at pasture.

TargetDB: a target registration database for structural genomics projects.

TargetDB is a centralized target registration database that includes protein target data from the NIH structural genomics centers and a number of international sites. TargetDB, which is hosted by the Protein Data Bank (RCSB PDB), provides status information on target sequences and tracks their progress through the various stages of protein production and structure determination. A simple search form permits queries based on contributing site, target ID, protein name, sequence, status and other data. The progress of individual targets or entire structural genomics projects may be tracked over time, and target data from all contributing centers may also be downloaded in the XML format. TargetDB is available at http://targetdb.pdb.org/

Lancifodilactone A, a Novel Bisnortriterpenoid from Schisandra lancifolia.

A novel bisnortriterpenoid, lancifodilactone A, has been isolated from the leaves and stems of Schisandra lancifolia. Its structure and stereochemistry were determined primarily from ID and 2D NMR spectroscopic data, and were confirmed by a single crystal X-ray analysis. (C) 2003 Elsevier Science Ltd. All rights reserved.

ID Data wins UK Post Office contract

ID Data wins UK Post Office contract

A comparison of polydipsia prevalence among chronic psychiatric patients using three measurement approaches

Many previous prevalence studies of polydipsia (PD) have utilized single and often non-biologic measures. In this study we estimated prevalence using specific gravity of urine (SPGU), normalized diurnal weight gain (NDWG), and staff identification (staff ID). Agreement between these two biologic and one behavioral measure was assessed. A total of 572 psychiatric inpatients were assessed for SPGU and NDWG. Unit staff were asked to identify PD patients. Positive and negative PD groups were formed separately based on the SPGU, NDWG, and staff ID data. All three measures were collected on the same day. Prevalence data for the biologic measures varied. The estimate for PD by SPGU (< 1.009 cutoff) was higher (43.4% of sample) than that of NDWG (> 2.5%; 25.4%) or staff ID (21.4%). These prevalence rates did not change substantially after exclusion of medical causes of polyuria. Agreement, assessed by the kappa statistic, was uniformly low among the measures. Weak association between the measures reflects their multidetermined, nonspecific nature, and highlights the lack of a diagnostic standard in the field. The observed prevalence rates must be considered rough approximations. Associations between the measures and certain subject characteristics suggest the measures may identify different types of potential PD patients. These different types of patients are discussed, as are other issues in the measurement of PD. The data suggest estimates of PD are a function of the type of measure used as even biologic measures vary greatly.

Diagnostic voice instructing apparatus

First Page

Catch a Rising Tone: Selecting a Tone for a New Calling Service

The tone used in the new service Caller ID on Call Waiting (CIDCW) must be reliably detected by customer premises equipment (CPE), so that it can prepare to receive caller ID data, and it should alert customers to new calls but without being annoying. To help select a tone, the first experiment of this study examined the acceptability of a series of high-frequency dual tones that might be able to perform the required CPE signaling. Subjects were presented with the tones under circumstances in which they would typically be heard (while talking and listening over the telephone) and rated the sound quality of the tones. Long bursts of tones were presented as well as short bursts prepended or appended to the 440-Hz tone used in Call Waiting service. The results suggested that customers may find high-frequency dual tones acceptable. To determine acceptable parameters of tones, in the second experiment, subjects rated the loudness of selected tones as their length and power were varied.

4847694 Picture archiving and communication system in which image data produced at various locations is stored in data bases at various locations in accordance with lists of image id data in the data bases : Eitaro Nishihara, Ootawara, Japan assigned to Kabushiki Kaisha Toshiba

4847694 Picture archiving and communication system in which image data produced at various locations is stored in data bases at various locations in accordance with lists of image id data in the data bases : Eitaro Nishihara, Ootawara, Japan assigned to Kabushiki Kaisha Toshiba

A computerized personal dosimeter with an IC card

A microprocessor-based personal dosimeter with a silicon solid-state gamma-ray detector has been designed and built to provide reliable personal dosimetry. An IC (integrated circuit) card equipped in the dosimeter can exchange data with the microprocessor. Personal data concerning radiation dose control such as personal dose history and personal ID data are previously stored in the IC card. The dosimeter provides alarms on exceeding dose and working period limits in controlled areas and records the time differential dose data which can be used for the analysis of working procedures to minimize the personal dose in the controlled areas. The data stored in the IC card while the dosimeter is being used can be read by an external computer and used in preparing documents for personal dose control. These functions were confirmed by trial use in a nuclear power plant. >

A correlation between dynamic initiation toughness and crack arrest toughness

Dynamic initiation toughness values were obtained from testing small 3-point bend specimens at −50, −25, 0, +23°C. Two specimen orientations were tested which showed no marked difference in critical dynamic initiation toughness. The obtained K Id data were correlated with the crack arrest toughness K Im and K Ia . The value of K Id is in the range 0.93 to 1.29 times the corresponding fast fracture toughness, k im while the ratio K Id/K Ia varies between 1.27 and 1.60.