WorldWideScience
 
 
1

Determination of volatile organic compounds (VOC) in work-room air using direct-reading PTR-MS and traditional air sampling methodologies  

Digital Repository Infrastructure Vision for European Research (DRIVER)

PTR-MS was evaluated up against traditional air sampling methodologies by choosing compounds that were tested by injecting a known amount of reference compounds into the test chamber to create artificial atmospheres. Measurements were taken by means of traditional air sampling methodologies and by sampling straight from the chamber using PTR-MS. The traditional methods consisted of active sampling with sorbent tubes, overnight desorption using carbon disulphide/carbon disulphide with 2% Dime...

Sauve, Anette

2010-01-01

2

A Modified Direct-Reading Azimuth Protractor  

Science.gov (United States)

Describes the construction of a direct-reading azimuth protractor (DRAP) used for mapping fracture and joint-surface orientations in underground mines where magnetic disturbances affect typical geologic pocket transit. (SL)

Larson, William C.; Pugliese, Joseph M.

1977-01-01

3

SDR (Systems Directed Reading): An Overview.  

Science.gov (United States)

The objective of this project for kindergarten through fifth grade is to interest public and private educational institutions in the systematization of elementary school reading programs. Facets of Systems Directed Reading (SDR) include the use of a differentiated staffing pattern; experienced language arts unit leaders guiding and directing all…

Baugo Community Schools, Elkhart, IN.

4

Mobile Variable Depth Sampling System Design Study  

International Nuclear Information System (INIS)

A design study is presented for a mobile, variable depth sampling system (MVDSS) that will support the treatment and immobilization of Hanford LAW and HLW. The sampler can be deployed in a 4-inch tank riser and has a design that is based on requirements identified in the Level 2 Specification (latest revision). The waste feed sequence for the MVDSS is based on Phase 1, Case 3S6 waste feed sequence. Technical information is also presented that supports the design study

2000-01-01

5

Analytical laboratory and mobile sampling platform  

International Nuclear Information System (INIS)

This is the final report for the Analytical Laboratory and Mobile Sampling Platform project. This report contains only major findings and conclusions resulting from this project. Detailed reports of all activities performed for this project were provided to the Project Office every quarter since the beginning of the project. This report contains water chemistry data for samples collected in the Nevada section of Death Valley National Park (Triangle Area Springs), Nevada Test Site springs, Pahranagat Valley springs, Nevada Test Site wells, Spring Mountain springs and Crater Flat and Amargosa Valley wells

1996-01-01

6

Bureau of Mines Direct-Reading Azimuth Protractor.  

Science.gov (United States)

The report describes the construction and use of a direct reading azimuth protractor (DRAP) for measuring fracture orientations in mines, tunnels, or other excavations having a magnetic environment. DRAP allows a rapid and simultaneous measurement of dip ...

D. D. Bolstad M. A. Mahtab

1974-01-01

7

Direct reading fast microwave interferometer for ELMO Bumpy Torus  

International Nuclear Information System (INIS)

A simple and inexpensive 4-mm direct reading fast (rise timeapprox.100 ?s) microwave interferometer is described. The system is particularly useful for density measurements on the ELMO Bumpy Torus (EBT) during pulsed operation

1984-01-01

8

Multiple sample selection in the estimation of intergenerational occupational mobility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The estimation of occupational mobility across generations can be biased because of different sample selection issues as, for example, selection into employment. Most empirical papers have either neglected sample selection issues or adopted Heckman-type correction methods. These methods are generally not adequate to estimate intergenerational mobility models. In this paper, we show how to use new methods to estimate linear and quantile intergenerational mobility equations taking account of mu...

Nicoletti, Cheti

2008-01-01

9

Setting-up of a direct reading emission spectrometer and its adaptation for plutonium handling  

International Nuclear Information System (INIS)

A Jarrell-Ash 750 AtomComp 1100 series direct reading emission spectrometer was set up and its performance features were checked with regard to analysis of uranium-based samples using d.c. arc/inductively coupled argon plasma excitation techniques. The instrument has been subsequently modified to enable handling of plutonium-based samples. The modifications include building up of a specially designed glove-box around the excitation sources and consequent changes in the electro-mechanical controls associated with them. The modified system was extensively used for the trace metal assay of FBTR fuel sample. (author)

1986-01-01

10

Value of information and mobility constraints for sampling with mobile sensors  

Science.gov (United States)

Wireless sensor networks (WSNs) play a vital role in environmental monitoring. Advances in mobile sensors offer new opportunities to improve phenomenon predictions by adapting spatial sampling to local variability. Two issues are relevant: which location should be sampled and which mobile sensor should move to do it? This paper proposes a form of adaptive sampling by mobile sensors according to the expected value of information (EVoI) and mobility constraints. EVoI allows decisions to be made about the location to observe. It minimises the expected costs of wrong predictions about a phenomenon using a spatially aggregated EVoI criterion. Mobility constraints allow decisions to be made about which sensor to move. A cost-distance criterion is used to minimise unwanted effects of sensor mobility on the WSN itself, such as energy depletion. We implemented our approach using a synthetic data set, representing a typical monitoring scenario with heterogeneous mobile sensors. To assess the method, it was compared with a random selection of sample locations. The results demonstrate that EVoI enables selecting the most informative locations, while mobility constraints provide the needed context for sensor selection. This paper therefore provides insights about how sensor mobility can be efficiently managed to improve knowledge about a monitored phenomenon.

Ballari, Daniela; de Bruin, Sytze; Bregt, Arnold K.

2012-12-01

11

Experience-Sampling Methodology with a Mobile Device in Fibromyalgia  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This work describes the usability studies conducted in the development of an experience-sampling methodology (ESM) system running in a mobile device. The goal of the system is to improve the accuracy and ecology in gathering daily self-report data in individuals suffering a chronic pain condition, fibromyalgia. The usability studies showed that the developed software to conduct ESM with mobile devices (smartphones, cell phones) can be successfully used by individuals with fibromyalgia of diff...

Diana, Castilla; Cristina, Botella; Azucena, Garci?a-palacios; Luis, Farfallini; Ignacio, Miralles

2012-01-01

12

EFFICIENT DATA AGGREGATION FOR MOBILE SAMPLING IN WIRELESS SENSOR NETWORKS  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile objects can be used to gather samples from a sensor field. Civilian vehicles or even human beings equipped with proper wireless communication devices can be used as mobile sinks that retrieve sensor-data from sampling points within a large sensor field. A key challenge is how to gather the sensor data in a manner that is energy efficient with respect to the sensor nodes that serve as sources of the sensor data. In this paper, an algorithmic technique called Band-based Directional Broadcast is introduced to control the direction of broadcasts that originate from sensor nodes. The goal is to direct each broadcast of sensor data toward the mobile sink, thus reducing costly forwarding of sensor data packets. The technique is studied by simulations that consider energy consumption and data deliverability.

K. SIVAKUMAR

2012-07-01

13

Direct reading spectrochemical determination of aluminium, iron and silicon in fluorite  

International Nuclear Information System (INIS)

A quantitative spectrochemical method for the determination of Al, Fe and Si in fluorite has been worked out. The sample was supported in a graphite electrode with crater of 5 mm. in diameter, 2,5 mm deep, and burned by a d.c. are in a direct reading spectrometer. The excitation of samples has been studied without dilution as well as using graphite powder as diluent in the ratios 1:1, 1:4, and 1:9; the latter factor was chosen. Ag, Ca, Co, Cr, Mo and Sn were tested as internal standards. It has not been found any significant inter element effect. It is necessary to use natural fluorite as base material for the standards. (Author) 5 refs

1966-01-01

14

Evaluation of the direct reading instruments for the measurement of aerosols  

Energy Technology Data Exchange (ETDEWEB)

Six portable, direct-reading instruments for measuring industrial aerosols were evaluated with respect to bias and precision. The Instruments were: Sibata P5, Simslin II, TM-digital, RAM-1, TSI 3500, and RDM 201. As a reference, total dust was determined using an open 37 mm cassette and respirable dust by sampling with a cyclone. Tests were carried out on aerosols simulated with a generator and a dust chamber, and also on aerosols in mines, sintering plants and smelters. Zero drift, reference unit drift, and flow rate drift were recorded during each test run. None of the 6 instruments gave the same readings as the filter method, but 4 of them could be calibrated to yield precision <25% for a given aerosol. The fifth instrument, Simslin II, showed somewhat greater precision and the sixth RDM 201, displayed precision >25%. Wide differences in factory precalibration were found among instruments of the same model.

Kuusisto, P.

1983-11-01

15

Mobility, bioavailability, and toxic effects of cadmium in soil samples  

International Nuclear Information System (INIS)

Total concentration is not a reliable indicator of metal mobility or bioavailability in soils. The physicochemical form determines the behavior of metals in soils and hence the toxicity toward terrestrial biota. The main objectives of this study were the application and comparison of three approaches for the evaluation of cadmium behavior in soil samples. The mobility and bioavailability of cadmium in five selected soil samples were evaluated using equilibrium speciation (Windermere humic aqueous mode (WHAM)), extraction procedures (Milli-Q water, DMSO, and DTPA), and a number of bioassays (Microtox, growth inhibition test, contact toxicity test, and respiration). The mobility, represented by the water-extractable fraction corresponded well with the amount of cadmium in the soil solution, calculate using the WHAM (r2=0.96, P<0.001). The results of the ecotoxicologica evaluation, which represent the bioavailable fraction of cadmium, correlated well with DTPA extractability and also with the concentration of free cadmium ion, which is recognized as the most bioavailable metal form. The results of the WHAM as well as the results of extraction experiments showed a strong binding of cadmium to organic matter and a weak sorption of cadmium to clay minerals

2003-02-01

16

Plutonium Mobility Studies: 216-Z-9 Trench Sample Analysis Results  

International Nuclear Information System (INIS)

A variety of analyses were conducted on selected sediment samples collected from two wells (299 W15-46 and 299-W15-48) drilled near the 216-Z-9 Trench to elucidate the form and potential for Pu and Am to be mobilized under present conditions and those that could be expected in future remediation scenarios. Analyses included moisture content, determination of the less than sand size fraction (silt plus clay), carbon analysis, SEM/EDS analysis, microwave-assisted acid digestions for total element analysis, and extraction tests using Hanford groundwater as the leachate. Results of the extraction tests were used as input to conduct equilibrium geochemical modeling of the solutions with Geochemist's Workbench. Geochemical modeling results for Pu were evaluated in terms of recent conclusions regarding the solubility and redox reactions of Pu by Neck et al. (2007a, 2007b). It was found that the highest concentrations of Pu and Am were associated with sediments of low silt/clay content and occur above silt/clay rich layers within the sediment profile. It was also found that the Pu and Am were relatively enriched in the silt/clay portion of these samples. The fact that the highest concentrations of Pu and Am occurred in sediments with low silt/clay contents suggests that waste solutions had perched on top of the low permeability silt/clay rich layers and interactions with the high silt/clay layers was minimal. SEM/EDS analysis indicated that the Pu and Am in these sediments does not occur as discrete micron size particles, and therefore must occur as mononuclear or polynuclear/ nanoclusters size particles adsorbed throughout the sediment samples. Leaching of these samples with Hanford groundwater indicates that release of Pu and Am from the sediments is correlated most significantly with the acidity of the water and not the initial concentrations of Pu and Am in the sediments. Only extracts that were acidic after contact with the sediments (pH 4.3 to 5.4) contained detectable concentrations of extractable Pu and Am. Water extracts from samples containing high concentrations of TBP suggest that if the TBP degradation products DBP and MBP are available in these sediments, they do not significantly increase the extractability of Pu or Am. Geochemical modeling results suggest that the concentrations of Am in water in contact with these sediments is not controlled by the solubility of Am(OH)3(c), but rather by desorption of Am that has been previously adsorbed to the sediments during the period of active wastewater disposal. Sediment extracts that had measureable concentrations of Am only occurred in samples that were fairly acidic (pH 4.3 to 4.6), indicating that Am will remain effectively sequestered to sediments when pH conditions approach those of normal Hanford groundwater (mildly alkaline, ? pH 8). The geochemical modeling results indicate that Pu in acidic extracts is significantly undersaturated with respect to PuO2(am). However, recent reviews of Pu solubility and redox reactions suggest that the data used for these calculations is incomplete (Neck et al. 2007a, 2007b). The results of Neck et al. (2007a, 2007b) suggest that Pu concentrations in solutions in contact with the 216-Z-9 Trench sediment samples might be controlled by a mixed valent solid phase ((PuV)2x(PuIV)1-2xO2+x(am)) with various dissolved Pu(V) complexes and Pu(IV)O2(am) colloids or nanoclusters being the dominant species in solution for typical Hanford groundwater conditions. Adsorption is likely to have a major impact on the mobility of these species. Further research is planned to verify these hypotheses.

2008-01-01

17

Plutonium Mobility Studies: 216-Z-9 Trench Sample Analysis Results  

Energy Technology Data Exchange (ETDEWEB)

A variety of analyses were conducted on selected sediment samples collected from two wells (299 W15-46 and 299-W15-48) drilled near the 216-Z-9 Trench to elucidate the form and potential for Pu and Am to be mobilized under present conditions and those that could be expected in future remediation scenarios. Analyses included moisture content, determination of the less than sand size fraction (silt plus clay), carbon analysis, SEM/EDS analysis, microwave-assisted acid digestions for total element analysis, and extraction tests using Hanford groundwater as the leachate. Results of the extraction tests were used as input to conduct equilibrium geochemical modeling of the solutions with Geochemist’s Workbench®. Geochemical modeling results for Pu were evaluated in terms of recent conclusions regarding the solubility and redox reactions of Pu by Neck et al. (2007a, 2007b). It was found that the highest concentrations of Pu and Am were associated with sediments of low silt/clay content and occur above silt/clay rich layers within the sediment profile. It was also found that the Pu and Am were relatively enriched in the silt/clay portion of these samples. The fact that the highest concentrations of Pu and Am occurred in sediments with low silt/clay contents suggests that waste solutions had perched on top of the low permeability silt/clay rich layers and interactions with the high silt/clay layers was minimal. SEM/EDS analysis indicated that the Pu and Am in these sediments does not occur as discrete micron size particles, and therefore must occur as mononuclear or polynuclear/ nanoclusters size particles adsorbed throughout the sediment samples. Leaching of these samples with Hanford groundwater indicates that release of Pu and Am from the sediments is correlated most significantly with the acidity of the water and not the initial concentrations of Pu and Am in the sediments. Only extracts that were acidic after contact with the sediments (pH 4.3 to 5.4) contained detectable concentrations of extractable Pu and Am. Water extracts from samples containing high concentrations of TBP suggest that if the TBP degradation products DBP and MBP are available in these sediments, they do not significantly increase the extractability of Pu or Am. Geochemical modeling results suggest that the concentrations of Am in water in contact with these sediments is not controlled by the solubility of Am(OH)3(c), but rather by desorption of Am that has been previously adsorbed to the sediments during the period of active wastewater disposal. Sediment extracts that had measureable concentrations of Am only occurred in samples that were fairly acidic (pH 4.3 to 4.6), indicating that Am will remain effectively sequestered to sediments when pH conditions approach those of normal Hanford groundwater (mildly alkaline, ~ pH 8). The geochemical modeling results indicate that Pu in acidic extracts is significantly undersaturated with respect to PuO2(am). However, recent reviews of Pu solubility and redox reactions suggest that the data used for these calculations is incomplete (Neck et al. 2007a, 2007b). The results of Neck et al. (2007a, 2007b) suggest that Pu concentrations in solutions in contact with the 216-Z-9 Trench sediment samples might be controlled by a mixed valent solid phase [(PuV)2x(PuIV)1-2xO2+x(am)] with various dissolved Pu(V) complexes and Pu(IV)O2(am) colloids or nanoclusters being the dominant species in solution for typical Hanford groundwater conditions. Adsorption is likely to have a major impact on the mobility of these species (Neck et al. 2007a, 2007b; Clark et al. 2006; Kaplan et al. 2006; Powell et al. 2005). Further research is planned to verify these hypotheses.

Cantrell, Kirk J.; Geiszler, Keith N.; Arey, Bruce W.

2008-09-05

18

Sampling mobile opinion: A contextual postcard questionnaire study  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Understanding requirements of mobile communities is challenging because of their geographical distribution and frequent movement. We present a study of backpackers travelling in Australia which utilizes a research method called contextual postcard questionnaires. The method uses brief, open–ended questions to solicit contextual responses from backpackers that are relevant for development of tourism and mobile communication technologies. Eight hundred postcards were distributed via hoste...

Axup, Jeff; Viller, Stephen

2006-01-01

19

Industrial Component-based Sample Mobile Robot System  

Directory of Open Access Journals (Sweden)

Full Text Available The mobile robot development can be done in two different ways. The first is tobuild up an embedded system, the second is to use ‘ready to use’ industrial components.With the spread of Industrial mobile robots there are more and more components on themarket which can be used to build up a whole control and sensor system of a mobile robotplatform. Using these components electrical hardware development is not needed, whichspeeds up the development time and decreases the cost. Using a PLC on board, ‘only’constructing the program is needed and the developer can concentrate on the algorithms,not on developing hardware. My idea is to solve the problem of mobile robot localizationand obstacle avoidance using industrial components and concentrate this topic to themobile robot docking. In factories, mobile robots can be used to deliver parts from oneplace to another, but there are always two critical points. The robot has to be able tooperate in human environment, and also reach the target and get to a predefined positionwhere another system can load it or get the delivered product. I would like to construct amechanically simple robot model, which can calculate its position from the rotation of itswheels, and when it reaches a predefined location with the aid of an image processingsystem it can dock to an electrical connector. If the robot succeeded it could charge itsbatteries through this connector as well.

Péter Kucsera

2007-12-01

20

TANK VAPOR CHEMICALS OF POTENTIAL CONCERN and EXISTING DIRECT READING INSTRUMENTION and PERSONAL PROTECTIVE EQUIPMENT CONSIDERATIONS  

International Nuclear Information System (INIS)

This document takes the newly released Industrial Hygiene Chemical Vapor Technical Basis (RPP--22491) and evaluates the chemicals of potential concern (COPC) identified for selected implementation actions by the industrial hygiene organization. This document is not intended as a hazard analysis with recommended controls for all tank farm activities. Not all of the chemicals listed are present in all tanks; therefore, hazard analyses can and should be tailored as appropriate. Detection of each chemical by current industrial hygiene non-specific instrumentation in use at the tank farms is evaluated. Information gaps are identified and recommendations are made to resolve these needs. Of the 52 COPC, 34 can be detected with existing instrumentation. Three additional chemicals could be detected with a photoionization detector (PID) equipped with a different lamp. Discussion with specific instrument manufacturers is warranted. Consideration should be given to having the SapphIRe XL customized for tank farm applications. Other instruments, sampling or modeling techniques should be evaluated to estimate concentrations of chemicals not detected by direct reading instruments. In addition, relative instrument response needs to be factored in to action levels used for direct reading instruments. These action levels should be correlated to exposures to the COPC and corresponding occupational exposure limits (OELs). The minimum respiratory protection for each of the COPC is evaluated against current options. Recommendations are made for respiratory protection based on each chemical. Until exposures are sufficiently quantified and analyzed, the current use of supplied air respiratory protection is appropriate and protective for the COPC. Use of supplied air respiratory protection should be evaluated once a detailed exposure assessment for the COPC is completed. The established tank farm OELs should be documented in the TFC-PLN-34. For chemicals without an established tank farm OEL, consideration should be given to adopting protective limits from NIOSH, AIHA, or developing OELs. Protective gloves and suits are evaluated for each chemical for which information is available. Information gaps are identified for some of the compounds and materials. Recommendations are made for resolving these needs. Based on available information, Silver Shield(regsign) gloves are promising for tank farm applications. However, permeation testing documentation is needed for the COPC and mixtures for Silver Shield(regsign) gloves to evaluate their protectiveness. North Safety Products is expected to provide the requested documentation. Multiple Tychem(regsign) products are available. There is overlap between chemicals and effective materials. Further hazard evaluation to determine actual hazards and permeation testing documentation is required to assess the efficacy of a single Tychem(regsign) product for tank farm applications. All of this chemical specific data is combined into a spreadsheet that will assist the industrial hygienist in the selection of monitoring instruments, respiratory protection selection and protective clothing for performing work at a specific tank(s)

2004-01-01

 
 
 
 
21

Continuous sampling ion mobility spectrometers and methods therefor  

Energy Technology Data Exchange (ETDEWEB)

An ion mobility spectrometer may include a flow channel having an inlet end and an outlet end. A deflection electrode is positioned within the flow channel so that a non-linear electric field is created between at least a portion of the flow channel and at least a portion of the deflection electrode when an electrostatic potential is placed across the deflection electrode and the flow channel. The ion mobility spectrometer also includes means for producing ions at a position upstream from the leading edge of the deflection electrode, so that ions produced thereby are deflected by the deflection electrode into the non-linear electric field. A detector positioned within the flow channel for detects ions from the non-linear electric field.

Dahl, David A [Idaho Falls, ID; Scott, Jill R [Idaho Falls, ID; Appelhans, Anthony D [Idaho Falls, ID; McJunkin, Timothy R [Idaho Falls, ID; Olson, John E [Rigby, ID

2009-04-14

22

Mobile field sampling system for determining submicron aerosol size distributions  

International Nuclear Information System (INIS)

The need to accurately measure size distributions of submicron aerosols in field situations was recognized. A mobile system was assembled consisting of three size distribution measuring instruments, a 1.1 ?m aerodynamic diameter cyclone precutter and a simple dilution method. The new system reduced data collection time, required only one operator (previous systems required two) and was successfully used in several field and laboratory applications

1981-12-01

23

Camera Calibration for Direct-Reading Water-Meter Based on Round Feature  

Directory of Open Access Journals (Sweden)

Full Text Available Familiar methods of camera calibration are very hard to be applied to direct-reading water-meter because the camera on water-meter is limited by operating space and fixing condition. In this study, a new calibration method was proposed by utilizing plenty of round features on water-meter surface. Firstly, the center of round feature was roughly located by template matching. Secondly, the region around round feature was locked. Thirdly, the edge of round feature was extracted by Canny operator and the center of round feature was accurately located according to these edges. Lastly, calibration was carried out with these accurate centers and asymmetric error was corrected. Experimental results showed that the method proposed in this study was practical to calibration for camera fixed on direct-reading water-meter.

Liu Hong-Jiang

2012-01-01

24

Improving gambling survey research using dual-frame sampling of landline and mobile phone numbers.  

Science.gov (United States)

Gambling prevalence studies are typically conducted within a single (landline) telephone sampling frame. This practice continues, despite emerging evidence that significant differences exist between landline and mobile (cell) phone only households. This study utilised a dual-frame (landline and mobile) telephone sampling methodology to cast light on the extent of differences across groups of respondents in respect to demographic, health, and gambling characteristics. A total of 2,014 participants from across Australian states and territories ranging in age from 18 to 96 years participated. Interviews were conducted using computer assisted telephone interviewing technology where 1,012 respondents from the landline sampling frame and 1,002 from the mobile phone sampling frame completed a questionnaire about gambling and other health behaviours. Responses across the landline sampling frame, the mobile phone sampling frame, and the subset of the mobile phone sampling frame that possessed a mobile phone only (MPO) were contrasted. The findings revealed that although respondents in the landline sample (62.7 %) did not significantly differ from respondents in the mobile phone sample (59.2 %) in gambling participation in the previous 12 months, they were significantly more likely to have gambled in the previous 12 months than the MPO sample (56.4 %). There were no significant differences in internet gambling participation over the previous 12 months in the landline sample (4.7 %), mobile phone sample (4.7 %) and the MPO sample (5.0 %). However, endorsement of lifetime problem gambling on the NODS-CLiP was significantly higher within the mobile sample (10.7 %) and the MPO sample (14.8 %) than the landline sample (6.6 %). Our research supports previous findings that reliance on a traditional landline telephone sampling approach effectively excludes distinct subgroups of the population from being represented in research findings. Consequently, we suggest that research best practice necessitates the use of a dual-frame sampling methodology. Despite inherent logistical and cost issues, this approach needs to become the norm in gambling survey research. PMID:23288431

Jackson, Alun C; Pennay, Darren; Dowling, Nicki A; Coles-Janess, Bernadette; Christensen, Darren R

2014-06-01

25

Apparatus for the Calibration/Certification of Direct Reading Tritium in Air Monitors  

International Nuclear Information System (INIS)

Direct reading tritium-in-air-monitors are widely used for immediate observation of discharges or working area levels where significant sources of tritium are held. These monitors require initial and periodic calibration certification at the levels likely to be encountered. We describe a purpose built gas handling apparatus which enables various activity levels of tritiated gas (3H + N2) to be precisely metered and circulated in a closed loop through the monitor under calibration at a wide range of activity levels

2005-07-01

26

The simulation of pulsed heater for a sampling system for the ion mobility spectrometer  

International Nuclear Information System (INIS)

The development of the sampling device with pulsed heating of the intermediate carrier for ion mobility spectrometer is described in this article. Numerical simulation of a pulse heater structure of is presented. The design of the sampling device using a pulsed heating of the intermediate carrier is developed. Experimental results of approval of the sampling device are presented.

2011-07-07

27

Combining landline and mobile phone samples : a dual frame approach  

Digital Repository Infrastructure Vision for European Research (DRIVER)

"More and more households abandon their landline phones and rely solely on cell phones. This implies a challenge for survey researchers: since the cell phone only households are not included in the frames for landline telephone surveys, samples based on these frames are in danger to be seriously biased due to undercoverage, if respondents who do not have a landline are systematically different from respondents who have a landline. Thus, strategies for combining samples from different fram...

2011-01-01

28

Adaptive Sampling for Learning Gaussian Processes Using Mobile Sensor Networks  

Directory of Open Access Journals (Sweden)

Full Text Available This paper presents a novel class of self-organizing sensing agents that adaptively learn an anisotropic, spatio-temporal Gaussian process using noisy measurements and move in order to improve the quality of the estimated covariance function. This approach is based on a class of anisotropic covariance functions of Gaussian processes introduced to model a broad range of spatio-temporal physical phenomena. The covariance function is assumed to be unknown a priori. Hence, it is estimated by the maximum a posteriori probability (MAP estimator. The prediction of the field of interest is then obtained based on the MAP estimate of the covariance function. An optimal sampling strategy is proposed to minimize the information-theoretic cost function of the Fisher Information Matrix. Simulation results demonstrate the effectiveness and the adaptability of the proposed scheme.

Yunfei Xu

2011-03-01

29

Improved Sampling for Terrestrial and Mobile Laser Scanner Point Cloud Data  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We introduce and test the performance of two sampling methods that utilize distance distributions of laser point clouds in terrestrial and mobile laser scanning geometries. The methods are leveled histogram sampling and inversely weighted distance sampling. The methods aim to reduce a significant portion of the laser point cloud data while retaining most characteristics of the full point cloud. We test the methods in three case studies in which data were collected using a different terrestria...

Eetu Puttonen; Matti Lehtomäki; Harri Kaartinen; Lingli Zhu; Antero Kukko; Anttoni Jaakkola

2013-01-01

30

Direct reading microwave interferometer for measurements of the local electron density in a plasma  

International Nuclear Information System (INIS)

The direct reading microwave interferometer for measurments of the local electron density in a low-pressure plasma has been described and the performance principle has been discussed. In this interferometer, which operates in X band, special phase-sensitive detecting system and the section of the Lecher line together with two field transformers to create converged microwave fields in the examined plasma are used. Some results of the measurements which have been carried out using the interferometer are presented. The reported sensitivity is about 4.10"9cm"-"3 and accuracy 10%. The space resolutions in two directions perpendicular to the Lecher line are about 10 mm and 5mm. The time resolution depends on the properties of semiconductor diodes and amplifiers of the used oscilloscop. (S.B.)

1972-01-01

31

High-mobility group box-1 protein determination in postmortem samples.  

Science.gov (United States)

The aims of this study were to assess whether high-mobility group box-1 protein can be determined in biological fluids collected during autopsy and evaluate the diagnostic potential of high-mobility group box-1 protein in identifying sepsis-related deaths. High-mobility group box-1 protein was measured in serum collected during hospitalization as well as in undiluted and diluted postmortem serum and pericardial fluid collected during autopsy in a group of sepsis-related deaths and control cases with noninfectious causes of death. Inclusion criteria consisted of full biological sample availability and postmortem interval not exceeding 6h. The preliminary results indicate that high-mobility group box-1 protein levels markedly increase after death. Concentrations beyond the upper limit of the calibration curve were obtained in undiluted postmortem serum in septic and traumatic control cases. In pericardial fluid, concentrations beyond the upper limit of the calibration curve were found in all cases. These findings suggest that the diagnostic potential of high-mobility group box-1 protein in the postmortem setting is extremely limited due to molecule release into the bloodstream after death, rendering antemortem levels difficult or impossible to estimate even after sample dilution. PMID:24763129

Palmiere, Cristian; Augsburger, Marc; Mangin, Patrice

2014-06-01

32

Analysis of antibiotics from liquid sample using electrospray ionization-ion mobility spectrometry  

International Nuclear Information System (INIS)

Highlights: ? The reduced mobilities of 18 antibiotics are determined. ? Establishing antibiotic mass-mobility correlation using (12,4) potential model. ? Multi-component characteristics of antibiotics can be revealed using ESI-IMS. ? Most mixtures of antibiotics can be analyzed using ESI-IMS. ? The detection limit of amoxicillin is 70 pg. - Abstract: The recent findings of antibiotic residues in aquatic environment at trace level have gained much concern for the detrimental effect on ecological and human health due to bacterial resistance. Here, the feasibility of using electrospray ionization ion mobility spectrometry (ESI-IMS) for analysis antibiotics in liquid sample is demonstrated. Reduced mobilities and collision cross sections of 18 antibiotics are experimentally measured and compared with theoretical values according to mass-mobility correlation. Gentamicin is used as an example to investigate the capability of ESI-IMS for multi-component analysis of antibiotics. Mixtures of antibiotics at different concentrations are analyzed. The estimated detection limit for amoxicillin is 0.7 mg L?1 (70 pg) and the linear range of response maintains over two orders. This method will be a potential technique for the analysis of antibiotics in aquatic environment.

2012-03-30

33

Analysis of antibiotics from liquid sample using electrospray ionization-ion mobility spectrometry  

Energy Technology Data Exchange (ETDEWEB)

Highlights: Black-Right-Pointing-Pointer The reduced mobilities of 18 antibiotics are determined. Black-Right-Pointing-Pointer Establishing antibiotic mass-mobility correlation using (12,4) potential model. Black-Right-Pointing-Pointer Multi-component characteristics of antibiotics can be revealed using ESI-IMS. Black-Right-Pointing-Pointer Most mixtures of antibiotics can be analyzed using ESI-IMS. Black-Right-Pointing-Pointer The detection limit of amoxicillin is 70 pg. - Abstract: The recent findings of antibiotic residues in aquatic environment at trace level have gained much concern for the detrimental effect on ecological and human health due to bacterial resistance. Here, the feasibility of using electrospray ionization ion mobility spectrometry (ESI-IMS) for analysis antibiotics in liquid sample is demonstrated. Reduced mobilities and collision cross sections of 18 antibiotics are experimentally measured and compared with theoretical values according to mass-mobility correlation. Gentamicin is used as an example to investigate the capability of ESI-IMS for multi-component analysis of antibiotics. Mixtures of antibiotics at different concentrations are analyzed. The estimated detection limit for amoxicillin is 0.7 mg L{sup -1} (70 pg) and the linear range of response maintains over two orders. This method will be a potential technique for the analysis of antibiotics in aquatic environment.

Li Shu; Jia Jian; Gao Xiaoguang; He Xiuli [State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190 (China); Li Jianping, E-mail: jpli@mail.ie.ac.cn [State Key Laboratory of Transducer Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190 (China)

2012-03-30

34

The Nexus between Direct Reading Instruction, Reading Theoretical Perspectives, and Pedagogical Practices of University of Swaziland Bachelor of Education Students  

Science.gov (United States)

The present study investigated the influence direct reading instruction had on university student teachers' reading cognition and the influence their theoretical perspectives had on their pedagogical practices. The study was conducted on all the seven year 2 (2008) Bachelor of Education (primary) students at the University of Swaziland.…

Sibanda, Jabulani

2010-01-01

35

Benthic foraminiferal census data from Mobile Bay, Alabama--counts of surface samples and box cores  

Science.gov (United States)

A study was undertaken in order to understand recent environmental change in Mobile Bay, Alabama. For this study a series of surface sediment and box core samples was collected. The surface benthic foraminiferal data provide the modern baseline conditions of the bay and can be used as a reference for changing paleoenvironmental parameters recorded in the box cores. The 14 sampling locations were chosen in the bay to cover the wide diversity of fluvial and marine-influenced environments on both sides of the shipping channel.

Richwine, Kathryn A.; Osterman, Lisa E.

2012-01-01

36

Comparison of emission ratios from on-road sources using a mobile laboratory under various driving and operational sampling modes  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intrinsically difficult to estimate due to the large number of parameters affecting the emissions variability within and across vehicles types. The MCMA-2003 Campaign in Mexico City has showed the utility of using a mobile laboratory to sample and characterize specific classes of motor vehicles to bet...

2008-01-01

37

Comparison of emissions from on-road sources using a mobile laboratory under various driving and operational sampling modes  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intrinsically difficult to estimate due to the large number of parameters affecting the emissions variability within and across vehicles types. The MCMA-2003 Campaign in Mexico City has showed the utility of using a mobile laboratory to sample and characterize specific classes of motor vehicles to bet...

2008-01-01

38

Comparison of emissions from on-road sources using a mobile laboratory under various driving and operational sampling modes  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intrinsically difficult to estimate due to the large number of parameters affecting the emissions variability within and across vehicles types. The MCMA-2003 Campaign in Mexico City has showed the utility of using a mobile laboratory to sample and characterize specific classes of motor vehicles to bet...

2009-01-01

39

Um termômetro eletrônico de leitura direta com termistor / A direct reading electronic thermometer with thermistor  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese Neste trabalho, descrevemos o projeto e funcionamento de um sistema eletrônico simples de leitura direta de temperatura que utiliza um termistor como elemento sensor. O sistema é composto de uma fonte de alimentaçăo estabilizada, um circuito série contendo um resistor e um termistor, e um circuito d [...] e condicionamento de sinal contendo um único circuito integrado, e pode ser operado com uma bateria. O sistema possui exatidăo da ordem de 0,1 şC para a faixa de temperatura de 0 şC a 32 şC, sendo indicado para experimentos que envolvem medidas de pequenas variaçőes de temperatura. O sistema também apresenta algumas características adicionais, como robustez, facilidade de construçăo, baixo custo, e resposta rápida a variaçőes de temperatura. Abstract in english In this work, we describe the project and operation of a simple direct reading temperature electronic system which uses a thermistor as sensing element. The system is composed of a stabilized power supply, a resistor-thermistor series circuit, and a signal conditioning circuit based only on one inte [...] grated circuit, and it may be operated using a battery. The system provides accuracy of about 0.1 şC for a range of temperature varying between 0 şC to 32 şC, being indicated for experiments which involve measurements of small temperature changes. The system also provides some additional features, such as robustness, ease to building, low cost, and rapid response to temperature changes.

Guadagnini, Paulo H.; Barlette, Vania E..

40

Nicotine in environmental tobacco smoke (ETS): Comparison of mobile personal and stationary area sampling  

Energy Technology Data Exchange (ETDEWEB)

Previous investigations of personal vs. area sampling of ambient nicotine may not accurately reflect personal exposure to ETS nicotine in environments in which individuals are relatively mobile. The purpose of this study was to determine the extent to which a stationary area sampler could estimate actual personal exposure to ambient nicotine when the exposed individuals are moving in and through a field environment. For this study, personal samplers using Tenax, and area samplers using XAD-4, were employed. Evaluations of the two systems using controlled experimental atmospheres of ETS revealed no differences in the measured nicotine levels over a range of 1.0--150 {mu}g/m{sup 3}. Field studies were conductd at approximately 30 locations, including taverns, restaurants with salad bars, laundromats, gaming establishments, and transportation waiting areas. Ambient nicotine levels ranged from 0.0--90.6 {mu}g/m{sup 3}. There were considerable differences in individual nicotine levels over relatively short distances within a given environment, probably due to atmospheric inhomogeneities. The variability between duplicate samples of a particular type was such that no statistically significant difference between stationary area and mobile personal samplers could be discerned. 17 refs., 2 tabs.

Jenkins, R.A.; Moody, R.L.; Higgins, C.E.; Moneyhun, J.H.

1991-01-01

 
 
 
 
41

Sampling Urban Mobility through On-line Repositories of GPS Tracks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We analyze urban mobility by relying on the short-term mobility traces gathered from a publicly available web-based repository of GPS tracks - the Nokia Sports Tracker service. All mobility traces are obtained from a set of kml files. We show how the data collected voluntarily by individuals, equipped with GPS-enabled mobile phones, can be used to infer accurate, large-scale footprint of urban mobility. This method, unlike others - for example, personal interviewing, is more scalable and less...

Piorkowski, Michal

2009-01-01

42

Engineering Task Plan for Development and Fabrication and Deployment of a mobile, variable depth sampling At-Tank Analysis Systems  

International Nuclear Information System (INIS)

This engineering task plan identifies the resources, responsibilities, and schedules for the development and deployment of a mobile, variable depth sampling system and an at-tank analysis system. The mobile, variable depth sampling system concept was developed after a cost assessment indicated a high cost for multiple deployments of the nested, fixed-depth sampling system. The sampling will provide double-shell tank (DST) staging tank waste samples for assuring the readiness of the waste for shipment to the LAW/HLW plant for treatment and immobilization. The at-tank analysis system will provide ''real-time'' assessments of the samples' chemical and physical properties. These systems support the Hanford Phase 1B vitrification project

2000-01-01

43

Transport measurements on a GaAs/AlGaAs high mobility sample  

Energy Technology Data Exchange (ETDEWEB)

We study the fractional Quantum-Hall effect in very high mobility two-dimensional electron systems (2DES). Hall bars are created by photolithography on a GaAs/AlGaAs quantum well containing a 2DES. The 2DES have an electron density of n{sub e}{approx}2.95.10{sup 11} cm{sup -2} and a mobility of {mu}{approx}14.9.10{sup 6} cm{sup 2}/Vs at 1.5 K. Similar parameters were obtained after cooling the sample slowly to the cryostat's base temperature (40 mK). For a given density of electrons we study the longitudinal resistance R{sub xx} over a short range around zero magnetic field. The measurements carried out for several temperatures and different currents were applied to the Hall bar. A peak was observed at zero magnetic field for the temperature dependent measurements, as well as for the current dependent measurements. The maximum value of R{sub xx}(B=0 T) is independent of the temperature and the applied current. The behavior of the longitudinal resistance for the temperature and the current dependent measurements is astonishing. Not only the fixed peak at the zero point is unusual, but also the distribution of the longitudinal resistance next to the peak. This region shows a different behavior for temperature variation than for different currents applied to the Hall bar. This clearly shows that the behavior for different currents is not a temperature dependent effect.

Bockhorn, Lina; Haug, Rolf J. [Institut fuer Festkoerperphysik, Leibniz Universitaet Hannover (Germany); Wegscheider, Werner [ETH Zuerich (Switzerland)

2010-07-01

44

Mobile phone use while driving in a sample of Spanish university workers.  

Science.gov (United States)

A number of epidemiological studies have reported drivers who use a mobile phone while driving have an elevated risk of being involved in a crash. This is particularly concerning as a survey of drivers in the Spanish region of Catalunya found that approximately 87% own mobile phones. The present study investigated the reported frequency of mobile phone use on Spanish roads (for talking and using SMS), the characteristics of the drivers who use mobile phones while driving and whether they altered their driving behaviour when using a mobile phone. The research found that more than 60% use a mobile phone while driving and that the phone is mostly used for making calls, rather than using SMS. In general, males and females use mobile phones about the same reported frequency, although males were more likely to use a mobile phone to talk on the highway. The pattern for age was the same for both male and female participants, with the younger drivers using SMS more frequently than older drivers. On urban roads almost half of the drivers reported changing their driving behaviour when using a mobile phone, while on the highway this figure was slightly over 41%. The reported frequency of using a mobile phone to talk on urban roads was significantly correlated with crash involvement. However, this affect disappeared once the contributions of the demographic and descriptive variables had been partialled out. PMID:17034749

Gras, M Eugenia; Cunill, Monica; Sullman, Mark J M; Planes, Montserrat; Aymerich, Maria; Font-Mayolas, Silvia

2007-03-01

45

Behaviour of metalloids and metals from highly polluted soil samples when mobilized by water – Evaluation of static versus dynamic leaching  

International Nuclear Information System (INIS)

The mobilization behaviour of metalloids and metals when leached by water from highly polluted soil/sediment samples was studied using static and dynamic approaches employing batch methodology and rotating coiled columns (RCC), respectively. Increasing the solution-to-solid ratios during batch leaching resulted in different enhanced mobilization rates, which are element-specific and matrix-specific. When dynamic leaching is employed with continuous replacement of the eluent, a higher portion is mobilized than when using batch elution with an identical solid-to-water ratio. Using RCC the time-resolved leaching of the elements was monitored to demonstrate the leaching patterns. For the majority of elements a significant decrease could be shown in the mobilized portion of the elements with ongoing leaching process. The data were discussed targeted at solid liquid partitioning coefficients of the metal(loid)s. The capabilities in application of Kd values was demonstrated for dynamic leaching which is relevant for environmental processes. - Highlights: ? We examine the mobilization of metal(loid)s by water under simulated conditions. ? Static versus dynamic leaching (RCC) with continuous supply of extractant was compared. ? RCC is favourable for detailed time-resolved investigations of the leaching behaviour. ? The influence of matrices on the leaching behaviour was investigated. ? The capabilities of the Kd values in environmentally relevant processes is shown. - Dynamic leaching with continuous supply of water has proved as tool for long-term and time-resolved mobility of metal(loid)s in contaminated soils.

2012-06-01

46

Classification and quantitative optical analysis of liquid and solid samples using a mobile phone as illumination source and detector  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A mobile phone has been used both as illumination source and image detector for quantitative optical analysis of colored liquid samples (4 different colorants) and solid samples (printed color patterns, plastic beads and colored sand grains). Even though the measurement conditions were far from ideal, because the light source was strongly polychromatic and the illumination was not a collimated light beam with homogeneous light intensity, a logarithmic concentration dependence, in accordance w...

Iqbal, Zafar; Eriksson, Mats

2013-01-01

47

Dealing with the size-of-source effect in the calibration of direct-reading radiation thermometer  

Energy Technology Data Exchange (ETDEWEB)

The majority of general-purpose low-temperature handheld radiation thermometers are severely affected by the size-of-source effect (SSE). Calibration of these instruments is pointless unless the SSE is accounted for in the calibration process. Traditional SSE measurement techniques, however, are costly and time consuming, and because the instruments are direct-reading in temperature, traditional SSE results are not easily interpretable, particularly by the general user. This paper describes a simplified method for measuring the SSE, suitable for second-tier calibration laboratories and requiring no additional equipment, and proposes a means of reporting SSE results on a calibration certificate that should be easily understood by the non-specialist user.

Saunders, P. [Measurement Standards Laboratory of New Zealand, PO Box 31-310, Lower Hutt 5040 (New Zealand)

2013-09-11

48

Quinolones control in milk and eggs samples by liquid chromatography using a surfactant-mediated mobile phase.  

Science.gov (United States)

Four quinolones (danofloxacin, difloxacin, flumequine and marbofloxacin) were determined in milk and egg samples by a simplified high-performance liquid chromatographic procedure using a micellar mobile phase. No extraction was needed to precipitate the proteins from the matrices since they were solubilised in micelles. The only pretreatment steps required were homogenisation, dilution and filtration before injecting the sample into the chromatographic system. An adequate resolution of the quinolones was achieved by a chemometrics approach where retention was modelled as a first step using the retention factors in only five mobile phases. Afterwards, an optimisation criterion was applied to consider the position and shape of the chromatographic peaks. Analytical separation involved a C18 reversed-phase column, a hybrid micellar mobile phase of 0.05 M sodium dodecyl sulphate, 10% (v/v) butanol and 0.5% (v/v) triethylamine buffered at pH 3 and fluorimetric detection. Quinolones were eluted in less than 15 min without the protein band or other endogenous compounds from the food matrices interfering. The calculated relevant validation parameters, e.g., decision limit (CC(?)), detection capability (CC(?)), repeatability, within-laboratory reproducibility, recoveries and robustness, were acceptable and complied with European Commission Decision 2002/657/EC. Finally, the proposed method was successfully employed in quantifying the four quinolones in spiked egg and milk samples. PMID:21085936

Rambla-Alegre, M; Collado-Sánchez, M A; Esteve-Romero, J; Carda-Broch, S

2011-05-01

49

Comparison of emission ratios from on-road sources using a mobile laboratory under various driving and operational sampling modes  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intrinsically difficult to estimate due to the large number of parameters affecting the emissions variability within and across vehicles types. The MCMA-2003 Campaign in Mexico City has showed the utility of using a mobile laboratory to sample and characterize specific classes of motor vehicles to better quantify their emissions characteristics as a function of their driving cycles. The technique clearly identifies "high emitter" vehicles via individual exhaust plumes, and also provides fleet average emission rates. We have applied this technique to Mexicali during the Border Ozone Reduction and Air Quality Improvement Program for the Mexicali-Imperial Valley in 2005. In this paper we analyze the variability of measured emission ratios for emitted NOx, CO, specific VOCs, NH3, and some primary fine particle components and properties obtained during the Border Ozone Reduction and Air Quality Improvement Program for the Mexicali-Imperial Valley in 2005 by deploying a mobile laboratory in roadside stationary sampling, chase and fleet average operational sampling modes. The measurements reflect various driving modes characteristic of the urban fleets. The observed variability for all measured gases and particle emission ratios is greater for the chase and roadside stationary sampling than for fleet average measurements. The fleet average sampling mode captured the effects of traffic conditions on the measured on-road emission ratios, allowing the use of fuel-based emission ratios to assess the validity of traditional "bottom-up" emissions inventories. Using the measured on-road emission ratios, we estimate CO and NOx mobile emissions of 175±62 and 10.4±1.3 metric tons/day, respectively, for the gasoline vehicle fleet in Mexicali. Comparisons with similar on-road emissions data from Mexico City indicated that fleet average NO emission ratios were around 20% higher in Mexicali than in Mexico City whereas HCHO and NH3 emission ratios were higher by a factor of 2 in Mexico City than in Mexicali. Acetaldehyde emission ratios did not differ significantly whereas selected aromatics VOCs emissions were similar or smaller in Mexicali. On-road heavy-duty diesel truck (HDDT nitrogen oxides emissions were measured near Austin, Texas, as well as in both Mexican cities, with NOy emission ratios in Austin < Mexico City < Mexicali.

M. Zavala

2008-04-01

50

Comparison of emissions from on-road sources using a mobile laboratory under various driving and operational sampling modes  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intrinsically difficult to estimate due to the large number of parameters affecting the emissions variability within and across vehicles types. The MCMA-2003 Campaign in Mexico City has showed the utility of using a mobile laboratory to sample and characterize specific classes of motor vehicles to better quantify their emissions characteristics as a function of their driving cycles. The technique clearly identifies "high emitter" vehicles via individual exhaust plumes, and also provides fleet average emission rates. We have applied this technique to Mexicali during the Border Ozone Reduction and Air Quality Improvement Program (BORAQIP for the Mexicali-Imperial Valley in 2005. We analyze the variability of measured emission ratios for emitted NOx, CO, specific VOCs, NH3, and some primary fine particle components and properties by deploying a mobile laboratory in roadside stationary sampling, chase and fleet average operational sampling modes. The measurements reflect various driving modes characteristic of the urban fleets. The observed variability for all measured gases and particle emission ratios is greater for the chase and roadside stationary sampling than for fleet average measurements. The fleet average sampling mode captured the effects of traffic conditions on the measured on-road emission ratios, allowing the use of fuel-based emission ratios to assess the validity of traditional "bottom-up" emissions inventories. Using the measured on-road emission ratios, we estimate CO and NOx mobile emissions of 175±62 and 10.4±1.3 metric tons/day, respectively, for the gasoline vehicle fleet in Mexicali. Comparisons with similar on-road emissions data from Mexico City indicated that fleet average NO emission ratios were around 20% higher in Mexicali than in Mexico City whereas HCHO and NH3 emission ratios were higher by a factor of 2 in Mexico City than in Mexicali. Acetaldehyde emission ratios did not differ significantly whereas selected aromatics VOCs emissions were similar or smaller in Mexicali. Nitrogen oxides emissions for on-road heavy-duty diesel truck (HDDT were measured near Austin, Texas, as well as in both Mexican cities, with NOy emission ratios in Austin < Mexico City < Mexicali.

M. Zavala

2009-01-01

51

Comparison of emission ratios from on-road sources using a mobile laboratory under various driving and operational sampling modes  

Science.gov (United States)

Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intrinsically difficult to estimate due to the large number of parameters affecting the emissions variability within and across vehicles types. The MCMA-2003 Campaign in Mexico City has showed the utility of using a mobile laboratory to sample and characterize specific classes of motor vehicles to better quantify their emissions characteristics as a function of their driving cycles. The technique clearly identifies "high emitter" vehicles via individual exhaust plumes, and also provides fleet average emission rates. We have applied this technique to Mexicali during the Border Ozone Reduction and Air Quality Improvement Program for the Mexicali-Imperial Valley in 2005. In this paper we analyze the variability of measured emission ratios for emitted NOx, CO, specific VOCs, NH3, and some primary fine particle components and properties obtained during the Border Ozone Reduction and Air Quality Improvement Program for the Mexicali-Imperial Valley in 2005 by deploying a mobile laboratory in roadside stationary sampling, chase and fleet average operational sampling modes. The measurements reflect various driving modes characteristic of the urban fleets. The observed variability for all measured gases and particle emission ratios is greater for the chase and roadside stationary sampling than for fleet average measurements. The fleet average sampling mode captured the effects of traffic conditions on the measured on-road emission ratios, allowing the use of fuel-based emission ratios to assess the validity of traditional "bottom-up" emissions inventories. Using the measured on-road emission ratios, we estimate CO and NOx mobile emissions of 175±62 and 10.4±1.3 metric tons/day, respectively, for the gasoline vehicle fleet in Mexicali. Comparisons with similar on-road emissions data from Mexico City indicated that fleet average NO emission ratios were around 20% higher in Mexicali than in Mexico City whereas HCHO and NH3 emission ratios were higher by a factor of 2 in Mexico City than in Mexicali. Acetaldehyde emission ratios did not differ significantly whereas selected aromatics VOCs emissions were similar or smaller in Mexicali. On-road heavy-duty diesel truck (HDDT) nitrogen oxides emissions were measured near Austin, Texas, as well as in both Mexican cities, with NOy emission ratios in Austin < Mexico City < Mexicali.

Zavala, M.; Herndon, S. C.; Wood, E. C.

2008-04-01

52

Comparison of emissions from on-road sources using a mobile laboratory under various driving and operational sampling modes  

Science.gov (United States)

Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intrinsically difficult to estimate due to the large number of parameters affecting the emissions variability within and across vehicles types. The MCMA-2003 Campaign in Mexico City has showed the utility of using a mobile laboratory to sample and characterize specific classes of motor vehicles to better quantify their emissions characteristics as a function of their driving cycles. The technique clearly identifies "high emitter" vehicles via individual exhaust plumes, and also provides fleet average emission rates. We have applied this technique to Mexicali during the Border Ozone Reduction and Air Quality Improvement Program (BORAQIP) for the Mexicali-Imperial Valley in 2005. We analyze the variability of measured emission ratios for emitted NOx, CO, specific VOCs, NH3, and some primary fine particle components and properties by deploying a mobile laboratory in roadside stationary sampling, chase and fleet average operational sampling modes. The measurements reflect various driving modes characteristic of the urban fleets. The observed variability for all measured gases and particle emission ratios is greater for the chase and roadside stationary sampling than for fleet average measurements. The fleet average sampling mode captured the effects of traffic conditions on the measured on-road emission ratios, allowing the use of fuel-based emission ratios to assess the validity of traditional "bottom-up" emissions inventories. Using the measured on-road emission ratios, we estimate CO and NOx mobile emissions of 175±62 and 10.4±1.3 metric tons/day, respectively, for the gasoline vehicle fleet in Mexicali. Comparisons with similar on-road emissions data from Mexico City indicated that fleet average NO emission ratios were around 20% higher in Mexicali than in Mexico City whereas HCHO and NH3 emission ratios were higher by a factor of 2 in Mexico City than in Mexicali. Acetaldehyde emission ratios did not differ significantly whereas selected aromatics VOCs emissions were similar or smaller in Mexicali. Nitrogen oxides emissions for on-road heavy-duty diesel truck (HDDT) were measured near Austin, Texas, as well as in both Mexican cities, with NOy emission ratios in Austin < Mexico City < Mexicali.

Zavala, M.; Herndon, S. C.; Wood, E. C.; Jayne, J. T.; Nelson, D. D.; Trimborn, A. M.; Dunlea, E.; Knighton, W. B.; Mendoza, A.; Allen, D. T.; Kolb, C. E.; Molina, M. J.; Molina, L. T.

2009-01-01

53

Feasibility of corona discharge ion mobility spectrometry for direct analysis of samples extracted by dispersive liquid-liquid microextraction.  

Science.gov (United States)

The capability of corona discharge ionization ion mobility spectrometry (CD-IMS) for direct analysis of the samples extracted by dispersive liquid-liquid microextraction (DLLME) was investigated and evaluated, for the first time. To that end, an appropriate new injection port was designed and constructed, resulting in possibility of direct injection of the known sample volume, without tedious sample preparation steps (e.g. derivatization, solvent evaporation, and re-solving in another solvent…). Malathion as a test compound was extracted from different matrices by a rapid and convenient DLLME method. The positive ion mobility spectra of the extracted malathion were obtained after direct injection of carbon tetrachloride or methanol solutions. The analyte responses were compared and the statistical results revealed the feasibility of direct analysis of the extracted samples in carbon tetrachloride, resulting in a convenient methodology. The coupled method of DLLME-CD-IMS was exhaustively validated in terms of sensitivity, dynamic range, recovery, and enrichment factor. Finally, various real samples of apple, river and underground water were analyzed, all verifying the feasibility and success of the proposed method for the easy extraction of the analyte using DLLME separation before the direct analysis by CD-IMS. PMID:24742534

Jafari, Mohammad T; Riahi, Farhad

2014-05-23

54

A profile of US-Mexico border mobility among a stratified random sample of Hispanics living in the El Paso-Juarez area.  

Science.gov (United States)

Examination of border-specific characteristics such as trans-border mobility and transborder health service illuminates the heterogeneity of border Hispanics and may provide greater insight toward understanding differential health behaviors and status among these populations. In this study, we create a descriptive profile of the concept of trans-border mobility by exploring the relationship between mobility status and a series of demographic, economic and socio-cultural characteristics among mobile and non-mobile Hispanics living in the El Paso-Juarez border region. Using a two-stage stratified random sampling design, bilingual interviewers collected survey data from border residents (n = 1,002). Findings show that significant economic, cultural, and behavioral differences exist between mobile and non-mobile respondents. While non-mobile respondents were found to have higher social economic status than their mobile counterparts, mobility across the border was found to offer less acculturated and poorer Hispanics access to alternative sources of health care and other services. PMID:21336846

Lapeyrouse, L M; Morera, O; Heyman, J M C; Amaya, M A; Pingitore, N E; Balcazar, H

2012-04-01

55

A Gibbs Sampling Based MAP Detection Algorithm for OFDM Over Rapidly Varying Mobile Radio Channels  

CERN Multimedia

In orthogonal frequency-division multiplexing (OFDM) systems operating over rapidly time-varying channels, the orthogonality between subcarriers is destroyed leading to inter-carrier interference (ICI) and resulting in an irreducible error floor. In this paper, a new and low-complexity maximum {\\em a posteriori} probability (MAP) detection algorithm is proposed for OFDM systems operating over rapidly time-varying multipath channels. The detection algorithm exploits the banded structure of the frequency-domain channel matrix whose bandwidth is a parameter to be adjusted according to the speed of the mobile terminal. Based on this assumption, the received signal vector is decomposed into reduced dimensional sub-observations in such a way that all components of the observation vector contributing to the symbol to be detected are included in the decomposed observation model. The data symbols are then detected by the MAP algorithm by means of a Markov chain Monte Carlo (MCMC) technique in an optimal and computatio...

Panayirci, Erdal; Poor, H Vincent

2009-01-01

56

The effect of sample holder material on ion mobility spectrometry reproducibility  

Science.gov (United States)

When a positive detection of a narcotic occurs during the search of a vessel, a decision has to be made whether further intensive search is warranted. This decision is based in part on the results of a second sample collected from the same area. Therefore, the reproducibility of both sampling and instrumental analysis is critical in terms of justifying an in depth search. As reported at the 2nd Annual IMS Conference in Quebec City, the U.S. Coast Guard has determined that when paper is utilized as the sample desorption medium for the Barringer IONSCAN, the analytical results using standard reference samples are reproducible. A study was conducted utilizing papers of varying pore sizes and comparing their performance as a desorption material relative to the standard Barringer 50 micron Teflon. Nominal pore sizes ranged from 30 microns down to 2 microns. Results indicate that there is some peak instability in the first two to three windows during the analysis. The severity of the instability was observed to increase as the pore size of the paper is decreased. However, the observed peak instability does not create a situation that results in a decreased reliability or reproducibility in the analytical result.

Jadamec, J. Richard; Su, Chih-Wu; Rigdon, Stephen; Norwood, Lavan

1995-01-01

57

Long-term Calibration Considerations during Subcutaneous Microdialysis Sampling in Mobile Rats  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The level at which implanted sensors and sampling devices maintain their calibration is an important research area. In this work, microdialysis probes with identical geometry and different membranes, polycarbonate/polyether (PC) or polyethersulfone (PES), were used with internal standards (vitamin B12 (MW 1355), antipyrine (MW 188) and 2-deoxyglucose (2-DG, MW 164)) and endogenous glucose to investigate changes in their long-term calibration after implantation into the subcutaneous space of S...

Mou, Xiaodun; Lennartz, Michelle; Loegering, Daniel J.; Stenken, Julie A.

2010-01-01

58

Final report, Ames Mobile Laboratory Project: The development and operation of instrumentation in a mobile laboratory for in situ, real-time screening and characterization of soils using the laser ablation sampling technique  

International Nuclear Information System (INIS)

The main focus of the Ames Laboratory's Technology Integration Program, TIP, from May 1991 through December 1994 was the development, fabrication, and demonstration of a mobile instrumentation laboratory incorporating rapid in situ sampling systems for safe, rapid, and cost effective soil screening/characterization. The Mobile Demonstration Laboratory for Environmental Screening Technologies, MDLEST, containing the analysis instrumentation, along with surface and subsurface sampling probe prototypes employing the laser ablation sampling technique were chosen to satisfy the particular surface and subsurface soil characterization needs of the various Department of Energy facilities for determining the extent of heavy metal and radionuclide contamination. The MDLEST, a 44 foot long 5th wheel trailer, is easily configured for the analysis instrumentation and sampling system required for the particular site work. This mobile laboratory contains all of the utilities needed to satisfy the operating requirements of the various instrumentation installed. These utilities include, an electric generator, a chilled water system, process gases, a heating/air conditioning system, and computer monitoring and automatic operating systems. Once the MDLEST arrives at the job site, the instrumentation is aligned and calibration is completed, sampling and analysis operations begin. The sample is acquired, analyzed and the results reported in as little as 10 minutes. The surface sampling probe is used in two modes to acquire samples for analysis. It is either set directly on the ground over the site to be sampled, in situ sampling, or in a special fixture used for calibrating the sampling analysis system with standard soil samples, having the samples brought to the MDLEST. The surface sampling probe was used to in situ sample a flat concrete surface (nondestructively) with the ablated sample being analyzed by the instrumentation in the MDLEST

1991-05-00

59

Evaluation and application of static headspace-multicapillary column-gas chromatography-ion mobility spectrometry for complex sample analysis.  

Science.gov (United States)

An evaluation of static headspace-multicapillary column-gas chromatography-ion mobility spectrometry (SHS-MCC-GC-IMS) has been undertaken to assess its applicability for the determination of 32 volatile compounds (VCs). The key experimental variables of sample incubation time and temperature have been evaluated alongside the MCC-GC variables of column polarity, syringe temperature, injection temperature, injection volume, column temperature and carrier gas flow rate coupled with the IMS variables of temperature and drift gas flow rate. This evaluation resulted in six sets of experimental variables being required to separate the 32 VCs. The optimum experimental variables for SHS-MCC-GC-IMS, the retention time and drift time operating parameters were determined; to normalise the operating parameters, the relative drift time and normalised reduced ion mobility for each VC were determined. In addition, a full theoretical explanation is provided on the formation of the monomer, dimer and trimer of a VC. The optimum operating condition for each VC calibration data was obtained alongside limit of detection (LOD) and limit of quantitation (LOQ) values. Typical detection limits ranged from 0.1ng bis(methylthio)methane, ethylbutanoate and (E)-2-nonenal to 472ng isovaleric acid with correlation coefficient (R(2)) data ranging from 0.9793 (for the dimer of octanal) through to 0.9990 (for isobutyric acid). Finally, the developed protocols were applied to the analysis of malodour in sock samples. Initial work involved spiking an inert matrix and sock samples with appropriate concentrations of eight VCs. The average recovery from the inert matrix was 101±18% (n=8), while recoveries from the sock samples were lower, that is, 54±30% (n=8) for sock type 1 and 78±24% (n=6) for sock type 2. Finally, SHS-MCC-GC-IMS was applied to sock malodour in a field trial based on 11 volunteers (mixed gender) over a 3-week period. By applying the SHS-MCC-GC-IMS database, four VCs were identified and quantified: ammonia, dimethyl disulphide, dimethyl trisulphide and butyric acid. A link was identified between the presence of high ammonia and dimethyl disulphide concentrations and a high malodour odour grading, that is, ? 6. Statistical analysis did not find any correlation between the occurrence of dimethyl disulphide and participant gender. PMID:24630058

Denawaka, Chamila J; Fowlis, Ian A; Dean, John R

2014-04-18

60

Inclusion of mobile phone numbers into an ongoing population health survey in New South Wales, Australia: design, methods, call outcomes, costs and sample representativeness  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background In Australia telephone surveys have been the method of choice for ongoing jurisdictional population health surveys. Although it was estimated in 2011 that nearly 20% of the Australian population were mobile-only phone users, the inclusion of mobile phone numbers into these existing landline population health surveys has not occurred. This paper describes the methods used for the inclusion of mobile phone numbers into an existing ongoing landline random digit dialling (RDD health survey in an Australian state, the New South Wales Population Health Survey (NSWPHS. This paper also compares the call outcomes, costs and the representativeness of the resultant sample to that of the previous landline sample. Methods After examining several mobile phone pilot studies conducted in Australia and possible sample designs (screening dual-frame and overlapping dual-frame, mobile phone numbers were included into the NSWPHS using an overlapping dual-frame design. Data collection was consistent, where possible, with the previous years’ landline RDD phone surveys and between frames. Survey operational data for the frames were compared and combined. Demographic information from the interview data for mobile-only phone users, both, and total were compared to the landline frame using ?2 tests. Demographic information for each frame, landline and the mobile-only (equivalent to a screening dual frame design, and the frames combined (with appropriate overlap adjustment were compared to the NSW demographic profile from the 2011 census using ?2 tests. Results In the first quarter of 2012, 3395 interviews were completed with 2171 respondents (63.9% from the landline frame (17.6% landline only and 1224 (36.1% from the mobile frame (25.8% mobile only. Overall combined response, contact and cooperation rates were 33.1%, 65.1% and 72.2% respectively. As expected from previous research, the demographic profile of the mobile-only phone respondents differed most (more that were young, males, Aboriginal and Torres Strait Islanders, overseas born and single compared to the landline frame responders. The profile of respondents from the two frames combined, with overlap adjustment, was most similar to the latest New South Wales (NSW population profile. Conclusions The inclusion of the mobile phone numbers, through an overlapping dual-frame design, did not impact negatively on response rates or data collection, and although costing more the design was still cost-effective because of the additional interviews that were conducted with young people, Aboriginal and Torres Strait Islanders and people who were born overseas resulting in a more representative overall sample.

Barr Margo L

2012-11-01

 
 
 
 
61

Respondent-driven sampling on the Thailand-Cambodia border. I. Can malaria cases be contained in mobile migrant workers?  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Reliable information on mobility patterns of migrants is a crucial part of the strategy to contain the spread of artemisinin-resistant malaria parasites in South-East Asia, and may also be helpful to efforts to address other public health problems for migrants and members of host communities. In order to limit the spread of malarial drug resistance, the malaria prevention and control programme will need to devise strategies to reach cross-border and mobile migrant populations. Methodology The Respondent-driven sampling (RDS method was used to survey migrant workers from Cambodia and Myanmar, both registered and undocumented, in three Thai provinces on the Thailand-Cambodia border in close proximity to areas with documented artemisinin-resistant malaria parasites. 1,719 participants (828 Cambodian and 891 Myanmar migrants were recruited. Subpopulations of migrant workers were analysed using the Thailand Ministry of Health classification based on length of residence in Thailand of greater than six months (long-term, or M1 or less than six months (short-term, or M2. Key information collected on the structured questionnaire included patterns of mobility and migration, demographic characteristics, treatment-seeking behaviours, and knowledge, perceptions, and practices about malaria. Results Workers from Cambodia came from provinces across Cambodia, and 22% of Cambodian M1 and 72% of Cambodian M2 migrants had been in Cambodia in the last three months. Less than 6% returned with a frequency of greater than once per month. Of migrants from Cambodia, 32% of M1 and 68% of M2 were planning to return, and named provinces across Cambodia as their likely next destinations. Most workers from Myanmar came from Mon state (86%, had never returned to Myanmar (85%, and only 4% stated plans to return. Conclusion Information on migratory patterns of migrants from Myanmar and Cambodia along the malaria endemic Thailand-Cambodian border within the artemisinin resistance containment zone will help target health interventions, including treatment follow-up and surveillance.

Delacollette Charles

2011-05-01

62

Top down viewing of the inductively coupled plasma using a dual grating, direct reading spectrograph and an all mirror optical system  

International Nuclear Information System (INIS)

Using an all-mirror optical system, an inductively coupled plasma is viewed top down and the light is directed to a dual grating, direct reading spectrograph. Top down viewing of the plasma, with masking of the image of the argon plasma torus at the spectrograph entrance slit, significantly reduces background signal from the source and permits the use of the depth of field of the optical system to achieve compromise conditions for viewing the plasma. Light from the plasma source is introduced to the optical system by means of a mirror situated directly over the plasma. The system is exhausted in such a way that cool air flowing past the mirror forms a thermal barrier between the mirror and the plasma. Elements such as copper and lead have atomic and ionic lines which tend to exhibit self absorption when viewed top down through the cooler ground state atoms in the plume of the plasma. One of the approaches to this problem is to shear off the plume of the plasma with a jet of air directed across the tip of the plasma. A second approach is to make use of the dual grating, direct reading spectrograph and real-time computer system which easily permits the setting of alternate lines for each element so that self absorption and matrix effects are minimized. The design of the dual-grating, direct-reading spectrograph allows for the mounting of more than 200 13-mm-dia photomultiplier tubes along the focal curves. In an effort to demonstrate the use of fiber optics as a viable technique for the closer placement of exit slits, a red sensitive photomultiplier tube was coupled with a 30-cm fiber-optic ribbon to detect light from the Li 670.784 nm line on the focal curve. It was successful and had the added advantages of absorbing second-order ultraviolet light

1980-01-11

63

An introduction to the technique of combined ion mobility spectrometry-mass spectrometry for the analysis of complex biological samples  

International Nuclear Information System (INIS)

Full Text: Ultra Performance Liquid Chromatography (UPLC) offers several advantages compared with conventional High Performance Liquid Chromatography (HPLC) as an 'inlet system' for mass spectrometry. UPLC provides improved chromatographic resolution, increased sensitivity and reduced analysis time. This is achieved through the use of sub 2?m particles (stationary phase) combined with high-pressure solvent delivery (up to 15,000 psi). When coupled with orthogonal acceleration time-of-flight (oa-TOF) mass spectrometry (MS), UPLC presents a means to achieve high sample throughput with reduced spectral overlap, increased sensitivity, and exact mass measurement capabilities with high mass spectral resolution (Ca 20,000 FWHM). Dispersive ion mobility spectrometry (IMS) implemented within a traveling-wave ion guide provides an orthogonal separation strategy for ions in the gas phase that can resolve isobaric ions formed by either Electrospray of MALDI ionization typically in Ca 20 mille seconds. All three techniques have the potential to be combined on-line (e.g. UPLC-IMS-MS/MS) in real time to maximize peak capacity and resolving power for the analysis of complex biological mixtures including; intact proteins, modified peptides and endogenous/exogenous metabolites

2008-01-01

64

Development of an electrospray-(63)Ni-differential ion mobility spectrometer for the analysis of aqueous samples.  

Science.gov (United States)

The feasibility of an electrospray coupled with a (63)Ni-differential ion mobility spectrometer (DMS) for the analysis of water samples was proven on examples of 2-hexanone, fluoroacetamide, l-nicotine and 1-phenyl-2-thiourea water solutions. The model substances were selected in order to cover the vapor pressure range of 0.3-1467 Pa. To reduce the inline humidity, which demonstrates a strong influence on the analyte compensation voltage, two units with a desolvation region lengths of 15.5 and 7 mm were examined. The counter gas (heated to 100 °C nitrogen) with flow rates of 100 mL min(-1) and 30 mL min(-1) for short and long desolvation units, respectively, was essential for the efficient reduction of humidity. The reduction of water content in the carrier gas to 2.2-2.4 g m(-3) and to 1.8-2.0 g m(-3) for the short and long desolvation unit, respectively, was achieved at an electrospray flow rate of 1000 nL min(-1). With this adjusted experimental setup, the detection of model substances in the water solutions, in the range of 0.1-50 mg L(-1), was performed. No correlation between the vapor pressure and signal area was observed. The high stability of the inline humidity, and the correspondingly stable carrier gas flow rate, were found to be essential for an acceptable reproducibility. PMID:24468357

Kuklya, Andriy; Uteschil, Florian; Kerpen, Klaus; Marks, Robert; Telgheder, Ursula

2014-03-01

65

EVALUATION OF GAS CHROMATOGRAPHY COUPLED WITH ION MOBILITY SPECTROMETRY FOR MONITORING VINYL CHLORIDE AND OTHER CHLORINATED AND AROMATIC COMPOUNDS IN AIR SAMPLES  

Science.gov (United States)

The objective of this research was to evaluate, in the laboratory, the potential of gas chromatography/ion mobility spectrometry (GC/IMS) for monitoring vinyl chloride and other organic compounds in air samples in the field. It was determined that GC/IMS has the potential to dire...

66

A Wheeled Mobile Device for Deployment of Surface and Subsurface Instruments and for Subsurface Sampling on Planets  

Science.gov (United States)

As a result of the ESA TRP activity MIDD (Mobile Instrument Deployment Device), an advanced Breadboard Model of a wheeled mobile device for use on planetary surfaces has recently been completed and functionally tested. The vehicle is based on previous mechanical component development work for small wheeled devices performed since 1995 and serves to demonstrate the scientific potential of a 4 kg-class system for supporting surface and subsurface science on a planetary landing mission. Moreover, the device is being extensively used to study general problems of locomotion on regolith-like surface materials and of obstacle negotiation. As payload elements, two spectrometers for mineralogical and elemental studies on surface materials - including rocks - have been foreseen, as well as an acoustic subsurface sounder, a close-up imager and a self-penetrating "Mole" for subsurface measurements and sampling. In addition, a dust removal device was accommodated for preparing rock surfaces for measurements. The mass of the payload, excluding their electronics, amounts to 1.5 kg. Following an accommodation study for the instruments, the vehicle chassis was sized by taking into account planetary surface rock distributions with ground clearance as well as mean straight path constraints, while restricting the number of wheels to four for reasons of simplicity and mass. The two front wheels are mounted on folding levers which allow to contact the soil with the cab and to place the spectrometers and the close-up imager against their targets. Also for operations of the Mole sampling system - reaching depths of more than 1 m and being derived from the "Beagle 2" Mole - , the front wheels are preferably rotated upwards to achieve a larger vehicle base. In order to minimize the stowage volume, a dual wheel configuration was chosen which allows the front wheels to be folded back while overlapping the rear wheels. The folding lever feature also provides a re-righting capability by shifting the center-of-mass, should the vehicle fall on its side. All wheels and the two folding levers are individually driven by brushless DC motors located inside a thermal enclosure in the vehicle cab. Except for the actuators and drive mechanisms, the enclosure houses a central electronics unit which also provides pre-processing of payload data. For the power supply and communications, a tether link to the lander is used, allowing a maximum range of some 20 m. As to the tether type, a flexible printed circuit was chosen which allows efficient packaging of the tether on board the vehicle. The wheel design was based on theoretical and experimental studies on tractive performance of small wheels on planetary soils being one of the subjects of the MIDD activity, involving a dedicated soil channel at DLR. As a result, the vehicle wheels were chosen to be rigid while featuring a wire mesh running surface and chevron-shaped grousers. Mass of a flight unit is projected to be around 2.9 kg, excluding the vehicle payload. The principal design philosophy for MIDD has been: conservative design with sufficient margins (i.e., provision of thermal enclosure for instruments); early component development and realistic environmental testing (mechanism functional testing in Thermal Vacuum; dust sealing test with mechanisms operating in simulated airborne dust environment of Mars).

Richter, L.; Bernasconi, M.; Haapanala, S.; Steiner, R.; Coste, P.

2003-04-01

67

Evaluation of false positive responses by mass spectrometry and ion mobility spectrometry for the detection of trace explosives in complex samples  

International Nuclear Information System (INIS)

Graphical abstract: -- Highlights: •First study to use (?)SESI-IM-TOFMS to analyze complex mixtures of personal care products. •The study demonstrated, by identifying mobility and mass interferents with explosive signatures, which, if used separately, neither IMS nor MS alone would prevent every false positive for explosives when detected in the presence of a complex sample matrix. •Ingredients in common household cleaning products were shown to either enhance or suppress the ionization of explosives in a SESI-IM-TOFMS analysis. •Mobility separation provided real-time separation of ion species that indicated overlapping isotope peak patterns -- Abstract: Secondary electrospray ionization-ion mobility-time of flight mass spectrometry (SESI-IM-TOFMS) was used to evaluate common household products and food ingredients for any mass or mobility responses that produced false positives for explosives. These products contained ingredients which shared the same mass and mobility drift time ranges as the analyte ions for common explosives. The results of this study showed that the vast array of compounds in these products can cause either mass or mobility false positive responses. This work also found that two ingredients caused either enhanced or reduced ionization of the target analytes. Another result showed that an IMS can provide real-time separation of ion species that impede accurate mass identifications due to overlapping isotope peak patterns. The final result of this study showed that, when mass and mobility values were used to identify an ion, no false responses were found for the target explosives. The wider implication of these results is that the possibility exists for even greater occurrences of false responses from complex mixtures found in common products. Neither IMS nor MS alone can provide 100% assurance from false responses. IMS, due to its low cost, ease of operation, rugged reliability, high sensitivity and tunable selectivity, will remain the field method of choice for the near future but, when combined with MS, can also reduce the false positive rate for explosive analyses

2013-09-17

68

Evaluation of false positive responses by mass spectrometry and ion mobility spectrometry for the detection of trace explosives in complex samples  

Energy Technology Data Exchange (ETDEWEB)

Graphical abstract: -- Highlights: •First study to use (?)SESI-IM-TOFMS to analyze complex mixtures of personal care products. •The study demonstrated, by identifying mobility and mass interferents with explosive signatures, which, if used separately, neither IMS nor MS alone would prevent every false positive for explosives when detected in the presence of a complex sample matrix. •Ingredients in common household cleaning products were shown to either enhance or suppress the ionization of explosives in a SESI-IM-TOFMS analysis. •Mobility separation provided real-time separation of ion species that indicated overlapping isotope peak patterns -- Abstract: Secondary electrospray ionization-ion mobility-time of flight mass spectrometry (SESI-IM-TOFMS) was used to evaluate common household products and food ingredients for any mass or mobility responses that produced false positives for explosives. These products contained ingredients which shared the same mass and mobility drift time ranges as the analyte ions for common explosives. The results of this study showed that the vast array of compounds in these products can cause either mass or mobility false positive responses. This work also found that two ingredients caused either enhanced or reduced ionization of the target analytes. Another result showed that an IMS can provide real-time separation of ion species that impede accurate mass identifications due to overlapping isotope peak patterns. The final result of this study showed that, when mass and mobility values were used to identify an ion, no false responses were found for the target explosives. The wider implication of these results is that the possibility exists for even greater occurrences of false responses from complex mixtures found in common products. Neither IMS nor MS alone can provide 100% assurance from false responses. IMS, due to its low cost, ease of operation, rugged reliability, high sensitivity and tunable selectivity, will remain the field method of choice for the near future but, when combined with MS, can also reduce the false positive rate for explosive analyses.

Crawford, C.L., E-mail: clcrawf@sandia.gov; Hill, H.H.

2013-09-17

69

Sampling  

CERN Document Server

Praise for the Second Edition "This book has never had a competitor. It is the only book that takes a broad approach to sampling . . . any good personal statistics library should include a copy of this book." —Technometrics "Well-written . . . an excellent book on an important subject. Highly recommended." —Choice "An ideal reference for scientific researchers and other professionals who use sampling." —Zentralblatt Math Features new developments in the field combined with all aspects of obtaining, interpreting, and using sample data Sampling provides an up-to-date treat

Thompson, Steven K

2012-01-01

70

Mobility of arsenic, cadmium and zinc in a multi-element contaminated soil profile assessed by in-situ soil pore water sampling, column leaching and sequential extraction  

International Nuclear Information System (INIS)

Three methods for predicting element mobility in soils have been applied to an iron-rich soil, contaminated with arsenic, cadmium and zinc. Soils were collected from 0 to 30 cm, 30 to 70 cm and 70 to 100 cm depths in the field and soil pore water was collected at different depths from an adjacent 100 cm deep trench. Sequential extraction and a column leaching test in the laboratory were compared to element concentrations in pore water sampled directly from the field. Arsenic showed low extractability, low leachability and occurred at low concentrations in pore water samples. Cadmium and zinc were more labile and present in higher concentrations in pore water, increasing with soil depth. Pore water sampling gave the best indication of short term element mobility when field conditions were taken into account, but further extraction and leaching procedures produced a fuller picture of element dynamics, revealing highly labile Cd deep in the soil profile. - Mobility of arsenic, cadmium and zinc in a polluted soil can be realistically interpreted by in-situ soil pore water sampling.

2010-01-01

71

Determination of 2,4,6-tricholoroanisole in water and wine samples by ionic liquid-based single-drop microextraction and ion mobility spectrometry.  

Science.gov (United States)

This article presents for the first time the joint use of ionic liquid-based single drop microextraction (IL-SDME) and ion mobility spectrometry (IMS) for the determination of 2,4,6-trichloroanisol (2,4,6-TCA) in water and wine samples. An imidazolium-based IL was used as extractant taking into account both, its affinity for the analyte and its negligible response in the detector. Water samples were directly analyzed by IL-SDME while wines required a previous solid phase extraction step to remove the interference of ethanol in the ion mobility spectra. All the parameters affecting the extraction were optimized in order to achieve the highest sensitivity, taking into account the lower concentrations reported for this compound in the matrices selected. Moreover, the use of ion mobility working under the negative ionization mode confers an adequate selectivity. The limits of detection and quantification were 0.2 and 0.66 ng L(-1), respectively. The precision of the method calculated at 10 ng L(-1) was 1.4% (repeatability, n=5) and 2.2% (reproducibility, n=5, 3 days). The analysis of water and wine samples reported the presence of 2,4,6-TCA in wine samples commercialized in bottles with cork stoppers. PMID:21839198

Márquez-Sillero, Isabel; Aguilera-Herrador, Eva; Cárdenas, Soledad; Valcárcel, Miguel

2011-09-30

72

Remote possibly hazardous content container sampling device  

Energy Technology Data Exchange (ETDEWEB)

The present invention relates to an apparatus capable of sampling enclosed containers, where the contents of the container is unknown. The invention includes a compressed air device capable of supplying air pressure, device for controlling the amount of air pressure applied, a pneumatic valve, a sampling device having a hollow, sampling insertion needle suspended therein and device to communicate fluid flow between the container and a containment vessel, pump or direct reading instrument.

Volz, David L. (59 La Paloma, Los Alamos, NM 87544)

1998-01-01

73

Assessment of the mobility of metals and semi-metals in Sepetiba Bay (Rio de Janeiro - Brazil) by analyzing sediments sampled in different periods  

International Nuclear Information System (INIS)

In the last three decades, Sepetiba bay, located about 60 km south of the city of Rio de Janeiro, Brazil, has been subjected to increasing pollution impacts. The Sepetiba region has undergone fast industrial expansion leading to high levels of pollution by metals. For the last two decades, an industrial park composed of about 400 industrial plants, basically metallurgical, was established in the Sepetiba Bay basin, releasing its effluents either straight into the bay or through local rivers. Potential toxic elements such as As, Zn, Cr, Pb and Cd have been introduced into the bay through industrial and domestic wastes. In the present paper, instrumental neutron activation analysis (INAA) was applied to determine the elements As, Cr and Zn in sediments from Sepetiba bay, sampled in August 2003, in order to compare to previous results obtained in 1998, for these elements, by Pellegatti et al. (2001). By using a geostatistical model it was possible to evaluate the spatial mobility of As, Cr and Zn in the last six years. The results obtained showed that none of the studied elements showed a significant spatial mobility. This behavior is probably related to geochemical barriers present in Sepetiba bay. (author)

2005-09-02

74

Characterization and quantification by mass spectrometry of mobile organic matter from clay rock: influence of the origin and of the sampling  

International Nuclear Information System (INIS)

Document available in extended abstract form only. In environmental studies, Natural Organic Matter (NOM) plays a key role on the bioavailability and the toxicity of metallic compounds. If one wants to evaluate the mobility of heavy metals / radionuclides, which is in natura in most of the cases dependant on their interactions with NOM. One part of the organic inventory in the Callovo-Oxfordian formation (COx) exists as small dissolved compounds in the pore water but the weak content and the weak porosity of the formation (? 8 % of water in weight) make the complexation study with metal ions difficult. One part of the organic matter attached to the sediment (? 1 % in weight) can be mobilized in a synthetic pore water 1 and can be considered as similar to in situ pore water dissolved organic matter (DOM) regarding its size distribution. The collection of clay pore water has been done through percolation experiment, a unique and original experimental process developed to get pore water from a core sample,that have been described previously. From these experiments, it was shown that mobile organic matter concentration could reach 0.01 mol C/L by application of a pressure gradient up to 100 bars. Since part of the OM from the COx is known to be sensitive to air oxidation, the characterization and quantification of DOM were then performed under anoxic conditions (about - 170 mV vs Standard Hydrogen Electrode SHE). In addition, the chemical composition of NOM contained in the pore water from the argillite clay rock has been determined in in-situ like conditions by ESI-MS and APCI-MS, which are suitable techniques to identify the chemical composition of NOM contained in the COx pore water available from boreholes. Mostly low molecular weight molecules were identified, of whom structural features observed were mainly acidic compounds, fatty acids as well as aldehydes and amino acids. Fulvic and Humic Acids have such low concentrations in the COx formation, leading to a probable low velocity, that the inventory was focused on the small organic molecules. The influence of the sampling was studied, notably by performing an experiment in which the argillite core sample was squeezed for 28 days at 175 MPa. The initial water content of the sample was 5.3% and the concentration of organic matter XX mol C/L. The structural features observed for the DOM were different from the percolated water samples either obtained in situ from the POX 1601 borehole or in lab from EST 34399 cores than for the squeezed water sample. The influence of the water collection will be discussed. Additionally, a part of organic matter can be extracted and isolated by HCl/HF treatment. This corresponds to the kerogen fraction which is insoluble in the pore water. 150 Myears solid-bound organic matter of the COx has been already investigated in several studies and originates from a mixture of marine and terrestrial sources. In addition to this, the CCl4 soluble organic fraction (bitumen) has been already characterized by liquid and gas chromatography coupled to mass spectrometry. And finally, a small fraction of the kerogen can be mobilized under alkaline conditions from the COx, a scenario which could happen at the COx/cement interface. This fraction (approx. 0,002 mol C/L) could be transported in the pore water and has been characterized to contain small molecules with carboxylic and phenolic groups. Nonetheless, in order to predict the speciation of metals and radionuclides for a given scenario, Dissolved Organic Matter (DOM) either in the pore water or that could be mobilized from the kerogen fraction must be supported by quantitative data. Thus, the present study is focused the quantification of these low molecular weight compounds using mass spectrometry. Several simple, sensitive, and reproducible methods of quantification, such as internal calibration, calibrated addition of external standard or sequential tandem mass spectrometry, have been developed and are discussed in this paper, mainly focused on acidic compounds, which are the mo st probable com

2012-10-01

75

Mobile membrane introduction tandem mass spectrometry for on-the-fly measurements and adaptive sampling of VOCs around oil and gas projects in Alberta, Canada  

Science.gov (United States)

The release of hydrocarbons into the environment can have significant environmental and economic consequences. The evolution of smaller, more portable mass spectrometers to the field can provide spatially and temporally resolved information for rapid detection, adaptive sampling and decision support. We have deployed a mobile platform membrane introduction mass spectrometer (MIMS) for the in-field simultaneous measurement of volatile and semi-volatile organic compounds. In this work, we report instrument and data handling advances that produce geographically referenced data in real-time and preliminary data where these improvements have been combined with high precision ultra-trace VOCs analysis to adaptively sample air plumes near oil and gas operations in Alberta, Canada. We have modified a commercially available ion-trap mass spectrometer (Griffin ICX 400) with an in-house temperature controlled capillary hollow fibre polydimethylsiloxane (PDMS) polymer membrane interface and in-line permeation tube flow cell for a continuously infused internal standard. The system is powered by 24 VDC for remote operations in a moving vehicle. Software modifications include the ability to run continuous, interlaced tandem mass spectrometry (MS/MS) experiments for multiple contaminants/internal standards. All data are time and location stamped with on-board GPS and meteorological data to facilitate spatial and temporal data mapping. Tandem MS/MS scans were employed to simultaneously monitor ten volatile and semi-volatile analytes, including benzene, toluene, ethylbenzene and xylene (BTEX), reduced sulfur compounds, halogenated organics and naphthalene. Quantification was achieved by calibrating against a continuously infused deuterated internal standard (toluene-d8). Time referenced MS/MS data were correlated with positional data and processed using Labview and Matlab to produce calibrated, geographical Google Earth data-visualizations that enable adaptive sampling protocols. This real-time approach has been employed in a moving vehicle to identify and track downwind plumes of fugitive VOC emissions near hydrocarbon upgrading and chemical processing facilities in Fort Saskatchewan, Alberta. This information was relayed to a trailing vehicle, which collected stationary grab samples in evacuated canisters for ultra trace analysis of over seventy VOC analytes. In addition, stationary time series data were collected and compared with grab samples co-located with our sampling line. Spatially and temporally resolved, time referenced MS/MS data for several air contaminants associated with oil and gas processing were processed in real time to produce geospatial data for visualization in Google Earth. This information was used to strategically locate grab samples for high precision, ultra trace analysis.

Krogh, E.; Gill, C.; Bell, R.; Davey, N.; Martinsen, M.; Thompson, A.; Simpson, I. J.; Blake, D. R.

2012-12-01

76

Positron mobility in polyethylene  

International Nuclear Information System (INIS)

Positron mobility in polyethylene was studied. Angular distribution of annihilation ?-quanta, on stationary electric field being applied on the sample, and positron implantation profile were determined. Positron mobility is shown to be 5.6±0.6 cm2/Vxc. Positron diffusion coefficient and diffusion length are determined

1986-07-01

77

Mobile Election  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile phones have the potential of fostering political mobilisation. There is a significant political power in mobile technology. Like the Internet, mobile phones facilitate communication and rapid access to information. Compared to the Internet, however, mobile phone diffusion has reached a larger proportion of the population in most countries, and thus the impact of this new medium is conceivably greater. There are now more mobile phones in the UK than there are people (ave...

Long, Elena; Lovitskii, Vladimir; Thrasher, Michael; Traynor, David

2009-01-01

78

Mobile units to hydro geochemistry characterization  

International Nuclear Information System (INIS)

This report shows the mobile units for hydro geochemical studies. The authors analyze the work of mobile unit and the cars that conform the unit: Sampling car and analysis car: The sampling and equipment are took into account as well

1994-01-01

79

Mobile Cartography  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The progresses in the fields of mobile Internet and positioning methods have lead to a plethora of new possibilities for cartography in mobile usage environments. However, principles of web mapping cannot simply be transferred to the mobile environment. Likewise the availability of Location Based Services (LBS) has made it possible to develop mobile map services, yet LBS themselves are mainly driven by technology and only concerned with location-related issues, thus have rather limited meanin...

Reichenbacher, Tumasch

2007-01-01

80

"Urban Built Environments and Trajectories of Mobility Disability: Findings from a National Sample of Community-Dwelling American Adults (1986–2001)"  

Digital Repository Infrastructure Vision for European Research (DRIVER)

As people age, they become more dependent on their local communities, especially when they are no longer able to drive. Uneven or discontinuous sidewalks, heavy traffic, and inaccessible public transportation, are just some of the built environment characteristics that can create barriers for outdoor mobility in later adulthood. A small body of literature has been investigating the role of the built environment on disability, but has been limited to cross-sectional analyses. The purpose of th...

Clarke, Philippa; Ailshire, Jennifer A.; Lantz, Paula

2009-01-01

 
 
 
 
81

Direct-reading type microwave interferometer  

International Nuclear Information System (INIS)

A microwave interferometer was developed and applied to the electron density measurement on a hybrid stellerator Tokamak device. The interferometer generates an output voltage proportional to the number of fringe shifts and also output pulses which indicate the change of electron density for the convenience of data processing, where the resolution is a quarter of fringe shift. The principle is based on the digitization of fringe shifts utilizing the phase detection of microwave signals with two-level modulation of source frequency. With this system and 70 GHz microwave source, a change of electron density as rapid as about 2 x 10 to the 13th power/cu cm in 1 ms was measured

1977-01-01

82

A quasi-classical mechanism for microwave induced resistance oscillations in high mobility GaAs/AlGaAs 2DEG samples  

Science.gov (United States)

In this work we investigate microwave induced resistance oscillations (MIROs) in a GaAs/AlGaAs heterostructure containing a high mobility two-dimensional electron gas (2DEG). We show that MIROs can be explained within a purely classical mechanism based on the Boltzmann equation [L.I. Magarill, I.A. Panaev, S.A. Studenikin, Condens. Matter 7 (1995) 1101]. The MIRO-related transitions can be observed in absorption and we demonstrate it experimentally for the first time using EPR-cavity absorption technique. Next we investigate MIROs and Shubnikov-de Haas (SdH) oscillations at milli-Kelvin temperatures. We find that MIROs persist to approximately three times lower magnetic field as compared with the SdH oscillations, which at temperatures below 50 mK are defined purely by the quantum relaxation time. This finding indicates a possible quasi-classical origin of MIROs.

Studenikin, S. A.; Fedorych, O. N.; Maude, D. K.; Potemski, M.; Sachrajda, A. S.; Wasilewski, Z. R.; Gupta, J. A.; Magarill, L. I.

2008-03-01

83

Mobile Semiotics - signs and mobilities  

DEFF Research Database (Denmark)

This paper is about how to comprehend the mobile condition of contemporary life with a particular view to the signifying dimension of the environment and its â??readabilityâ??. The paper explores the potentials of semiotics and its relationship to the new mobilities literature. The theoretical scope is therefore an attempt to mobilize semiotics by drawing on a central body of theory within and adjacent to the discipline. For instance the founding works of C. S. Peirce will be related to the contemporary notions of â??geosemioticsâ?? by Scollon & Scollon. The paperâ??s theoretical claim is that semiotics hold a potential for mobilities studies if the awareness of seeing the environment as a semiotic layer and system can be sensitized to the insights of the â??mobilities turnâ??. Empirically the paper tentatively explores the usefulness of a mobile semiotics approach to cases such as street signage, airport design, and wayfiding systems.

Jensen, Ole B.

84

Staging Mobilities  

DEFF Research Database (Denmark)

In recent years, the social sciences have taken a â??mobilities turn.â?ť There has been a developing realisation that mobilities do not â??just happen.â?ť Mobilities are carefully and meticulously designed, planned and staged (from above). However, they are equally importantly acted out, performed and lived as people are â??staging themselvesâ?ť (from below). Staging mobilities is a dynamic process between â??being stagedâ?ť (for example, being stopped at traffic lights) and the â??mobile stagingâ?ť of interacting individuals (negotiating a passage on the pavement). Staging Mobilities is about the fact that mobility is more than movement between point A and B. It explores how the movement of people, goods, information, and signs influences human understandings of self, other and the built environment. Moving towards a new understanding of the relationship between movement, interaction and environments, the book asks: what are the physical, social, technical, and cultural conditions to the staging of contemporary urban mobilities?

Jensen, Ole B.

2013-01-01

85

Review of sampling and analysis methodology for polynuclear aromatic compounds in air from mobile sources. Final report, 1 March-30 November 1983  

Energy Technology Data Exchange (ETDEWEB)

The objective of the program was to review and recommend test compounds and sampling and analysis methods for a future EPA study of polynuclear aromatic hydrocarbons (PAH) in microenvironments. Review of PAH profiles in ambient air indicated that concentrations of PAH were generally higher in winter than summer and varied with climate and between sampling sites within an urban area. Levels of several PAH were found to be proportional to traffic density. Studies of the biological activity of ambient air samples showed that some PAH and their nitrated derivatives are extremely carcinogenic and mutagenic. The following compounds were determined to be the most prevalent and mutagenic in ambient air and were recommended for the future EPA study: phenanthrene, pyrene, cyclopenta(c,d)pyrene, benzo(a)pyrene, dibenz(a,h)anthracene, 1-nitropyrene, fluoranthene, benz(a)anthracene, benzo(e)pyrene, benzo(g,h,i)perylene, coronene, and 3-nitrofluoranthene. In the review of PAH sampling methods, collection of both gaseous and particulate bound PAH was determined to be necessary to accurately characterize health effects of PAH in ambient air. Most studies have used filters to sample particulate-bound PAH and absorbents to collect vapor phase PAH. The major sampling problems encountered in the studies were PAH losses due to volatilization and reactivity.

Chuang, C.C.; Petersen, B.A.

1985-06-01

86

Mobility Challenges  

DEFF Research Database (Denmark)

This article takes point of departure in the challenges to understand the importance of contemporary mobility. The approach advocated is a cross-disciplinary one drawing on sociology, geography, urban planning and design, and cultural studies. As such the perspective is to be seen as a part of the so-called â??mobility turnâ?? within social science. The perspective is illustrative for the research efforts at the Centre for Mobility and Urban Studies (C-MUS), Aalborg University. The article presents the contours of a theoretical perspective meeting the challenges to research into contemporary urban mobilities. In particular the article discusses 1) the physical city, its infrastructures and technological hardware/software, 2) policies and planning strategies for urban mobility and 3) the lived everyday life in the city and the region.

Jensen, Ole B.; Lassen, Claus

2011-01-01

87

ALARA review for walk down activities, non-intrusive sampling, and mobilization in support of the 202-S plutonium loadout hood stabilization  

International Nuclear Information System (INIS)

The following as low as reasonably achievable (ALARA) review provides a description of the engineering and administrative controls used to manage personnel exposure, control contamination levels, and control airborne radioactivity areas while conducting inspections, sampling leaking pipes external to the plutonium loadout hood, and preparing for stabilization of the Reduction-Oxidation (REDOX) Facility plutonium loadout hood and associated piping

2000-01-01

88

On mobile media rights management  

Science.gov (United States)

Over the last three years, mobile handsets have evolved from voice based services to multimedia terminals that is gradually leading towards a new era of consumer entertainment fostered by mobile communications and consumer networks. The need for Mobile Digital Rights Management (MDRM) solutions is thus intensified in order to safeguard mobile media content. Various types of content protection solutions have been proposed. In this paper, we investigate current status, the standardization effort, and the challenges in the development of MDRM technologies. Sample state-of-the-art media security technologies for MDRM are also discussed.

Yu, Hong H.

2004-10-01

89

Mobile Platforms and Development Environments  

CERN Document Server

Mobile platform development has lately become a technological war zone with extremely dynamic and fluid movement, especially in the smart phone and tablet market space. This Synthesis lecture is a guide to the latest developments of the key mobile platforms that are shaping the mobile platform industry. The book covers the three currently dominant native platforms -- iOS, Android and Windows Phone -- along with the device-agnostic HTML5 mobile web platform. The lecture also covers location-based services (LBS) which can be considered as a platform in its own right. The lecture utilizes a sampl

Helal, Sumi; Li, Wengdong

2012-01-01

90

Combination of corona discharge ion mobility spectrometry with a novel reagent gas and two immiscible organic solvent liquid-liquid-liquid microextraction for analysis of clomipramine in biological samples.  

Science.gov (United States)

A novel and sensitive method based on combination of two immiscible organic solvents hollow fiber-based liquid-liquid-liquid microextraction and corona discharge ion mobility spectrometry (HF-LLLME-CD-IMS) was employed for the analysis of clomipramine in human urine and plasma. The effect of formic, acetic and propionic acid as the reagent gas (dopant) on the corona discharge ion mobility signal was investigated. The influence of dopant amount was also studied. Optimum mass flow rates of the dopants were 3.7, 1.1 and 1.0 ?mol min(-1) for formic, acetic and propionic acid, respectively. Experimental parameters influencing the extraction efficiency of HF-LLLME, such as NaOH concentration as donor solution, ionic strength of the sample, stirring rate, and extraction time were investigated and optimized. Under the optimum conditions, analytical parameters such as linearity, precision and limit of detection were also evaluated. The linear dynamic range was from 1 to 100 ?g L(-1) (r(2)=0.9980) and the limit of detection was 0.35 ?g L(-1). Intra- and inter-day precisions were satisfactory with a relative standard deviation (RSD) of 5.9 and 6.7%, respectively. The proposed method was satisfactorily applied for the determination of clomipramine in human plasma and urine. PMID:22041141

Saraji, Mohammad; Bidgoli, Ali Akbar Hajialiakbari; Khayamian, Taghi; Moradmand, Ali

2011-12-01

91

Irish mobilities  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The ‘mobility turn’ in sociology challenges our easy equation of ‘society’ with a given territorial area. The chapter begins by examining the arguments involved, pointing out how much sociological theorising about ‘fluidity’ (e.g. Bauman) shares common assumptions with the extreme free market globalisation writers (e.g. Freeman). Using arguments from the sociology of technology, it is argued that we need to examine how new mobilities are created and also constrained, the uses that...

2007-01-01

92

Mobile phones and mobile communication  

DEFF Research Database (Denmark)

With staggering swiftness, the mobile phone has become a fixture of daily life in almost every society on earth. In 2007, the world had over 3 billion mobile subscriptions. Prosperous nations boast of having more subscriptions than people. In the developing world, hundreds of millions of people who could never afford a landline telephone now have a mobile number of their own. With a mobile in our hand many of us feel safer, more productive, and more connected to loved ones, but perhaps also more distracted and less involved with things happening immediately around us. Written by two leading researchers in the field, this volume presents an overview of the mobile telephone as a social and cultural phenomenon. Research is summarized and made accessible though detailed descriptions of ten mobile users from around the world. These illustrate popular debates, as well as deeper social forces at work. The book concludes by considering three themes: 1) the tighter interlacing of daily activities 2) a revolution of control in the social sphere, and 3) the arrival of a world where the majority of its inhabitants are reachable, anytime, anywhere.

Ling, Richard; Donner, Jonathan

2009-01-01

93

Mobile Customer Relationship Management and Mobile Security  

Science.gov (United States)

The purpose of this study is twofold. First, in order to guarantee a coherent discussion about mobile customer relationship management (mCRM), this paper presents a conceptualization of mCRM delineating its unique characteristics because of Among the variety of mobile services, considerable attention has been devoted to mobile marketing and in particular to mobile customer relationship management services. Second, the authors discusses the security risks in mobile computing in different level(user, mobile device, wireless network,...) and finally we focus on enterprise mobile security and it's subgroups with a series of suggestion and solution for improve mobile computing security.

Sanayei, Ali; Mirzaei, Abas

94

Mobile Phones, Financial Inclusion, and Growth  

Directory of Open Access Journals (Sweden)

Full Text Available This paper assesses the impact of mobile phone rollout on economic growth in a sample of African countries from 1988 to 2007. Further, in light of the large financial infrastructure gap in African countries, we investigate whether mobile phone development fosters economic growth through better financial inclusion. In estimating the impact of mobile phone development on growth, we use mobile penetration rate as well as the cost of mobile local calls to capture mobile phone diffusion, while financial inclusion is measured by the number of deposits or loans per head. Using the System Generalized Method of Moments (GMM estimator to address endogeneity issues, the results confirm that mobile phone development contributes significantly to economic growth in African countries. Part of the positive effect of mobile phone penetration on growth comes from greater financial inclusion.

Mihasonirina Andrianaivo

2012-05-01

95

Upwardly mobile  

Energy Technology Data Exchange (ETDEWEB)

The features of new harbour crane technology are examined. Gottwald Port Technology, based in Duesseldorf, Germany is taking a lead in advanced mobile harbor crane technology. The cranes rely on a diesel-electric system. An overview is given of the company's orders for this year. Technical design features are described. Case studies describe a crane in Bordeaux, France to handle coal, ore and fertiliser, and other cranes for Qinhuangdao Port Authority, China to transport ore.

Klein, P. [Gottwald Port Technology GmbH & Co. KG (Germany)

2002-10-01

96

Mobile TV  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This article explores how mobile television is being constructed and understood, focusing on four concepts used in contemporary public debate to discuss the technology, namely 'TV in your pocket', 'TV anytime, anywhere', 'TV on the go', and 'Enhanced TV'. Drawing on an analysis of industry reports, conference proceedings, websites, academic studies, press coverage, results of trials, advertisements and expert interviews, we examine the ways in which experts involved in the production, marketi...

Orgad, Shani

2009-01-01

97

Spousal mobility and earnings.  

Science.gov (United States)

An important finding in the literature on migration has been that the earnings of married women typically decrease with a move, while the earnings of married men often increase with a move, suggesting that married women are more likely to act as the "trailing spouse." This article considers a related but largely unexplored question: what is the effect of having an occupation that is associated with frequent migration on the migration decisions of a household and on the earnings of the spouse? Further how do these effects differ between men and women? The Public Use Microdata Sample from the 2000 U.S. decennial census is used to calculate migration rates by occupation and education. The analysis estimates the effects of these occupational mobility measures on the migration of couples and the earnings of married individuals. I find that migration rates in both the husband's and wife's occupations affect the household migration decision, but mobility in the husband's occupation matters considerably more. For couples in which the husband has a college degree (regardless of the wife's educational level), a husband's mobility has a large, significant negative effect on his wife's earnings, whereas a wife's mobility has no effect on her husband's earnings. This negative effect does not exist for college-educated wives married to non-college-educated husbands. PMID:19110900

McKinnish, Terra

2008-11-01

98

Optimum Mobility Performance with Mobile IP & SIP?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobility will place an efficient role in now days in the wireless communications. Mobile IP andSIP provide the mobility service to the handset users. The problems in Mobile IP and SIP s are triangular,handoff, Intra domain problems. These problems create signal lose and improper signalling to the user. Toovercome these we provide add of service to the Mobile IP and SIP with the integration of the two services.This service provides optimum performance of the system.

2013-01-01

99

Mobility Diversity in Mobile Wireless Networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We introduce the novel concept of mobility diversity for mobile sensor or communication networks as the diversity introduced by transmitting data over different topologies of the network. We show how node mobility can provide diversity by changing the topology of the network. More specifically, we consider a mobile network of a sensor node and a number of sink nodes which are all moving randomly according to different Wiener process mobility models. Assuming that the network...

Havary-nassab, Veria; Shahbazpanahi, Shahram; Valaee, Shahrokh

2013-01-01

100

Mobility Impact on Performance of Mobile Grids  

CERN Document Server

Wireless mobile grids are one of the emerging grid types, which help to pool the resources of several willing and cooperative mobile devices to resolve a computationally intensive task. The mobile grids exhibit stronger challenges like mobility management of devices, providing transparent access to grid resources, task management and handling of limited resources so that resources are shared efficiently. Task execution on these devices should not be affected by their mobility. The proposed work presents performance evaluation of wireless mobile grid using normal walk mobility model. The normal walk model represents daily motion of users and the direction of motion is mostly symmetric in a real life environment, thus it is effective in location updating of a mobile station and in turn helps task distribution among these available mobile stations. Some of the performance parameters such as Task Execution Time, task failure rate, communication overhead on Brokering Server and Monitoring Cost are discussed.

Nandeppanavar, A S; Manvi, S S; Shridhar,

2010-01-01

 
 
 
 
101

33 CFR 165.835 - Security Zone; Port of Mobile, Mobile Ship Channel, Mobile, AL.  

Science.gov (United States)

...Security Zone; Port of Mobile, Mobile Ship Channel, Mobile, AL. 165.835 Section 165.835 Navigation and Navigable Waters...Security Zone; Port of Mobile, Mobile Ship Channel, Mobile, AL. (a) Definition. As used in this sectionâ Cruise...

2009-07-01

102

CBRN mobile laboratories in Italy  

Science.gov (United States)

The paper describes the experiences in Italy with the CBRN (Chemical Biological Radiological Nuclear) defense mobile laboratories. These laboratories were constructed by the Italian Army and the Italian Fire Brigades. The purpose of these mobile laboratories is to allow quick transport of the labs to the area of crisis in order to support emergency response in case of CBRN events. The differences between two alternative solutions will be developed in the paper. The first solution is when the lab is to be located in the "dangerous area" (this solution was chosen by the Italian Army) and the alternative approach is to place the mobile lab just outside the dangerous area (this approach was selected by the Italian Fire Brigades). One of the most important devices inside the lab is the isolator (also called "glove box") which allows safe ingress and handling of the "suspicious" samples from the external environment. The isolator has a special chamber for transfer of the sample from the outside. The pressure of the isolator is permanently kept below the air pressure inside the lab by means of one (or more) fan. The operators perform the sample preparations or part of the analysis by handling the sample with the gloves. The material flow inside the lab will be described depending on the kind of identification analysis to be done on the samples. Other devices installed on the mobile CBRN laboratories are: biohazard hood (UE regulation, containment level 2); autoclave; freezer; cleaning skid (tanks, pumps, etc.).

Mari, Giorgio; Giraudi, Giampaolo; Bellino, Mariarosa; Pazienza, Michele; Garibaldi, Claudio; Lancia, Corrado

2009-05-01

103

Capital Mobility in African Countries  

Directory of Open Access Journals (Sweden)

Full Text Available It is well known that one of the important aspects of achieving sustainable development is to preservemacroeconomic stability, which is closely related to the extent of capital mobility. Given the importance of thesubject for open economies, this paper examines the degree of capital mobility for African countries by usingamong other methodologies the Feldstein- Horioka coefficients. To determine those coefficients, we use timeseries data and methods, along with the Dynamic Heterogeneous panel approach. We find significantcross-country heterogeneity in the dynamic of income per capita, investment rate, and saving rate; and concludethat it is invalid to pool data across our sample countries. Furthemore, the empirical findings reveal that forAfrican countries included in the sample, the estimated saving retention coefficients are at the same time, smalland high indicating respectively higher and lower degrees of capital mobility and therefore, challenging theresults of Feldstein – Horioka on developing countries.

Solo Padawassou

2012-05-01

104

Mobile Search and Advertising  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile advertising is a rapidly growing sector providing brands and marketing agencies the opportunity to connect with consumers beyond traditional and digital media and instead communicate directly on their mobile phones. Mobile advertising will be intrinsically linked with mobile search, which has transported from the internet to the mobile and is identified as an area of potential growth. The result of mobile searching show that as a general rule such search result exceed 1...

Lovitskii, Vladimir; Mccaffery, Colin; Thrasher, Michael; Traynor, David; Wright, Peter

2009-01-01

105

Cross platform Mobile Applications Development : Mobile Apps Mobility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In recent years, the mobile computing sector has been having quite a revolution.Mobile computing devices have shed loads of weight, gone slim, achieved mass popularityand a great market penetration. But one of the challenges that has been part ofmobile computing is technology and device fragmentation leaving application developersfor mobile phones bewildered. Platform developers, device manufacturers comewith so many features and functionalities that it has been dicult to provide developerswi...

Redda, Yonathan Aklilu

2012-01-01

106

Mobile Operating Systems  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile phones are used by every people in today’s life. We use mobile phones without knowing the different factors that a mobile used including its technology, operating system, CPU ,RAM etc. Many types of operating system are used by different mobile. Every operating system has their advantage

Vipin Kamboj

2012-04-01

107

Next generation mobile broadcasting  

CERN Document Server

Next Generation Mobile Broadcasting provides an overview of the past, present, and future of mobile multimedia broadcasting. The first part of the book-Mobile Broadcasting Worldwide-summarizes next-generation mobile broadcasting technologies currently available. This part covers the evolutions of the Japanese mobile broadcasting standard ISDB-T One-Seg, ISDB-Tmm and ISDB-TSB; the evolution of the South Korean T-DMB mobile broadcasting technology AT-DMB; the American mobile broadcasting standard ATSC-M/H; the Chinese broadcasting technologies DTMB and CMMB; second-generation digital terrestrial

Gómez-Barquero, David

2013-01-01

108

IPv4 Mobility Support  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile computing offers mobile users anytime, anywhere bi-directional reliable access to the Internet. Mobile IP as a network layer routing protocol has been designed by the IETF (Internet Engineering Task Force to provide solutions to the requirements of mobile computing. However, there are still many technical obstacles that must be overcome before Mobile IP can be widely deployed. Moreover, since mobility performance is the outcome of the cooperation of different layers, merely focusing on the network layer performance is not sufficient. In other words, the operation of Mobile IP depends heavily on lower layer mechanisms, and has direct implications on upper layer performance.

Vattumilli Venkata Rajesh

2014-03-01

109

Mobile Cloud Computing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Together with rapid growth in mobile applications and cloud computing technology, mobile cloud computing has been introduced to be a potential technology for mobile services. As mobile cloud computing is still in an early stage of development, it is necessary to have a thorough understanding of the technology in order to point to the direction of future research. With this aim, this paper presents a review on the background and principles of mobile cloud computing- principle, architecture and...

2013-01-01

110

Mobile and contextual learning  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Is mobile learning just a part of everyday learning? This is a relevant question in an age when most people throughout the world now have access to mobile phones and mobility is increasingly taken for granted. In one sense, mobile learning is no different to carrying a textbook or learning through conversations at home, as part of formal education or in the workplace. The technology may be more engaging, but is the learning any different? Despite the ubiquity of mobile phones, smartphones, mp...

Agnes Kukulska-Hulme; Mike Sharples

2009-01-01

111

Mobile, flexible user interfaces  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This master thesis provides a set of principles, or guidelines, which aim to give practical and useful information in the process of developing user interfaces on mobile devices. When talking about mobile devices the main focus is on PDAs and Smartphones, but it also incorporates portable PCs (including ultra portable PCs), tablet PCs and other mobile phones. The commonly used platforms, or operating systems, on these devices are Windows Mobile, Palm, Symbian, Linux and the new mobile adapte...

Jansson, Tommy

2007-01-01

112

Mobility and Java RMI  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Recent advances in computing device and wireless communication technologies are enabling the widespread use of mobile computing devices. Mobile computing presents many problems not encountered in a static computing environment. The limited storage and processing power on the mobile device, the limited bandwidth available on wireless networks and the difficulties of locating a mobile device mean that mobile environments are more difficult to design distributed systems for than ...

Wall, Thomas

2000-01-01

113

Factors affecting blind mobility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This thesis contains a survey of the mobility problems of blind people, experimental analysis and evaluation of these problems and suggestions for ways in which the evaluation of mobility performance and the design of mobility aids may be improved. The survey revealed a low level of mobility among blind people, with no significant improvement since a comparable survey in 1967. A group of self taught cane users were identified and their mobility was shown to be poor or potentially dangero...

Clark-carter, David

1985-01-01

114

Mobile Commerce and Related Mobile Security Issues  

Directory of Open Access Journals (Sweden)

Full Text Available This article will discuss how m-commerce conducts transactions of the mobile device through Internet and how these technologies are developed throughout the years. The article will also judge the security and privacy levels when dealing with mobile commerce and what kind of issues are encountered when using mobile commerce systems. The article will also evaluate the solutions on how m-commerce issues are avoided and how they are tackled by the technology evolution

Ashish Wadhaval#1 , Rugved Mehta#2 , Ashlesha Gawade

2013-04-01

115

Explaining mobile commerce services adoption by different type of customers  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile phones have been proclaimed as the new service frontier. Nowadays, in addition to traditional mobile services, new mobile commerce services are ready to be used by customers based on 3G-related technologies. However, little is known about the reasons why different groups of customers adopt mobile commerce services. By means of a sample of 542 Dutch consumers, we analyze the acceptance of these services by four different groups of customers. We finish our work providing interesting conc...

Molina-castillo, Francisco J.; Carolina López-Nicolás; Harry Bouwman

2008-01-01

116

Mobil`s Energy Management Program  

Energy Technology Data Exchange (ETDEWEB)

Mobil`s Facilities Management Network sponsored a cross-divisional team to reduce energy costs. This team developed an Energy Management Plan to reduce energy costs by $25 million annually throughout all Mobil divisions over the next five years (total of $125 million committed savings). The core of this plan is the belief that energy costs are controllable and should be managed with the expertise that Mobil manages other parts of the business. Areas of focus are economic procurement, efficient consumption, and expertise sharing.

Schoeneborn, F.C.

1997-06-01

117

Mobility Management Framework  

CERN Multimedia

This paper investigates mobility management strategies from the point of view of their need of signalling and processing resources on the backbone network and load on the air interface. A method is proposed to model the serving network and mobile node mobility in order to be able to compare the different types of mobility management algorithms. To obtain a good description of the network we calculate descriptive parameters from given topologies. Most mobility approaches derived from existing protocols are analyzed and their performances are numerically compared in various network and mobility scenarios. We developed a mobility management framework that is able to give general designing guidelines for the next generation mobility managements on given network, technology and mobility properties. With our model an operator can design the network and tune the parameters to obtain the optimal implementation of course revising existing systems is also possible. We present a vertical handover decision method as a sp...

Fulop, Peter; Imre, Sandor

2008-01-01

118

Probability of Walking, Wheeled Mobility, and Assisted Mobility in Children and Adolescents with Cerebral Palsy  

Science.gov (United States)

Aim: Our aim was to describe how the probability of walking, wheeled mobility, and assisted mobility changes with environmental setting and age in children and adolescents with cerebral palsy (CP). Method: The parents of a population-based sample of 642 children and adolescents (360 males, 282 females; age range 16mo-21y) reported their children's…

Palisano, Robert J.; Hanna, Steven E.; Rosenbaum, Peter L.; Tieman, Beth

2010-01-01

119

MOBILE AGENT: EMERGING TECHNOLOGY  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile agent technology has been promoted as an emerging technology that makes it much easier to design, implement, and maintain distributed systems, introduction to basic concepts of mobile agents like agent mobility, agent types and places and agent communication. Then benefits of the usage of mobile agents are summarized and illustrated by selected applications. The next section lists requirements and desirable properties for mobile agent languages and systems. We study the main features, challenges, and open problems of mobile agent technology.

RAJGURU P. V. DR. DESHMUKH S. D

2011-12-01

120

Mobile Router Technology Development  

Science.gov (United States)

Cisco Systems and NASA have been performing joint research on mobile routing technology under a NASA Space Act Agreement. Cisco developed mobile router technology and provided that technology to NASA for applications to aeronautic and space-based missions. NASA has performed stringent performance testing of the mobile router, including the interaction of routing and transport-level protocols. This paper describes mobile routing, the mobile router, and some key configuration parameters. In addition, the paper describes the mobile routing test network and test results documenting the performance of transport protocols in dynamic routing environments.

Ivancic, William D.; Stewart, David H.; Bell, Terry L.; Kachmar, Brian A.; Shell, Dan; Leung, Kent

2002-01-01

 
 
 
 
121

Head First Mobile Web  

CERN Multimedia

Despite the huge number of mobile devices and apps in use today, your business still needs a website. You just need it to be mobile. Head First Mobile Web walks you through the process of making a conventional website work on a variety smartphones and tablets. Put your JavaScript, CSS media query, and HTML5 skills to work-then optimize your site to perform its best in the demanding mobile market. Along the way, you'll discover how to adapt your business strategy to target specific devices. Navigate the increasingly complex mobile landscapeTake both technical and strategic approaches to mobile

Gardner, Lyza; Grigsby, Jason

2011-01-01

122

Customizing Mobile Applications.  

Science.gov (United States)

The dynamics of mobile systems require applications to intelligently adapt to changes in system configurations and to their environment. The authors describe a workplace in which users interact with a number of stationary and mobile systems through the co...

B. N. Schilit M. M. Theimer B. B. Welch

1993-01-01

123

Mobile Internet Protocol Analysis.  

Science.gov (United States)

Mobile Internet Protocol (IP) is a proposed standard that builds on the current Internet Protocol by making the fact that a user is mobile transparent to applications and higher level protocols such as Transmission Control Protocol (TCP) and User Datagram...

L. J. Brachfeld

1999-01-01

124

mobile plant licence application  

...for a mobile plant licence Waste management Please...form. You will need a mobile plant licence if you want...of individuals or partnership. For applications from partnerships please provide written...

125

Mobile Claims Management  

Digital Repository Infrastructure Vision for European Research (DRIVER)

As of April 2010, several Swiss motor insurers offer mobile apps that enable customers to submit a loss report. This article discusses the emergence of mobile apps in the insurance industry and the impact of mobile technology on claims management in motor insurance. We also present a demonstrator that goes beyond existing solutions by integrating a mobile app with a commercial claims management enterprise system. The technical aspects are complemented by results from expert interviews on mobi...

Oliver Baecker; Lukas Ackermann; Walter Ackermann; Elgar Fleisch

2010-01-01

126

Fixed mobile convergence handbook  

CERN Document Server

From basic concepts to future directions, this handbook provides technical information on all aspects of fixed-mobile convergence (FMC). The book examines such topics as integrated management architecture, business trends and strategic implications for service providers, personal area networks, mobile controlled handover methods, SIP-based session mobility, and supervisory and notification aggregator service. Case studies are used to illustrate technical and systematic implementation of unified and rationalized internet access by fixed-mobile network convergence. The text examines the technolo

Ahson, Syed A

2010-01-01

127

Instant Kendo UI mobile  

CERN Document Server

Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. Written as practical recipes, Instant Kendo UI Mobile How-to will show you all you need to know to build your first mobile application utilizing the Kendo UI Mobile framework and its components.This book is for web application developers who are looking forward to build a mobile website or an application. It requires basic knowledge of HTML, CSS, and JavaScript. This guide assumes that you are new to the topic and provides a step-by-step approach to building mobile applications usin

Ganatra, Sagar

2013-01-01

128

Cooperative Distributed Sensors for Mobile Robot Localization  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper presents a probabilistic algorithm to collaborate distributed sensors for mobile robot localization. It uses a sample-based version of Markov localization—Monte Carlo localization (MCL), capable of localizing mobile robot in an any-time fashion. During robot localization given a known environment model, MCL method is employed to update robot’s belief whichever information (positive or negative) attained from environmental sensors. Meanwhile, an implementation is presented that ...

2010-01-01

129

Housing busts and household mobility: An update  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper provides updated estimates of the impact of three financial frictions - negative equity, mortgage lock-in, and property tax lock-in - on household mobility. We add the 2009 wave of the American Housing Survey (AHS) to our sample and also create an improved measure of permanent moves in response to Schulhofer-Wohl's (2011) critique of our earlier work (2010). Our updated estimates corroborate our previous results: Negative equity reduces household mobility by 30 percent, and $1,000 ...

Ferreira, Fernando; Gyourko, Joseph; Tracy, Joseph

2011-01-01

130

Social Perspectives on Mobility  

DEFF Research Database (Denmark)

Globalisation is heavily dependent on physical transport, as people and goods travel over longer distances and with higher frequency. Movement and mobility have become integrated parts of late modern identity and practice, and a state of flux can be sensed everywhere. Bringing together the latest interdisciplinary theoretical approaches with empirical case studies analysing and appraising innovative policies from Scandinavia, this volume demonstrates that mobility research is a key issue within social enquiry. It addresses three broad themes. Firstly, mobility as a constructed social reality, examining how individuals construct notions of mobility in their everyday life and practice. Secondly, mobility as spatial co-ordination and transgression, and finally, mobility as a policy theme, where the contributors explore recent developments in transport policy at national and European levels, suggesting ways forward for both research and policy. In the final section of the book new visions for research into sustainability and mobility are laid out.

Uth Thomsen, Thyra; Gudmundsson, Henrik

2005-01-01

131

Mobility Prediction in Dynamic Grids  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile grids are one of the emerging grid types. They help to pool the resources of several cooperative mobile devices to resolve a computationally intensive task. Mobility management is a key challenge in mobile grids which includes mechanisms to track and maintain the locations of mobile nodes. Mobility prediction is one of the most important components of mobility management, which defined as proactively tracking the future locations of mobile users. In this paper we introduce a straight forward mobility predictor that can predict the future locations of mobile users and the duration for which the users will remain in those locations.

Iraky Khalifa

2012-04-01

132

Mobile Web Analytics  

Directory of Open Access Journals (Sweden)

Full Text Available This Paper presents an overview of the Mobile Web analytics, with a focus on providing insight and actionable outcomes from collecting and analyzing Internet data. The amazing and tremendous growth of web site over the Mobile Internet has raised many concerns for organizations to analyze the lifetime value of their customers, and also improve their marketing strategies in the competitive world through the their website. So this has uplifted the need and requirement of Mobile Web Analytics. There are short comings of applying traditional web analytics to mobile web analytics. Mobile Web analytic process converts the collected data to meaningful key performance indicators in order to measure the organizational goals or potential opportunities. Mobile Web analytics in used to improve Web systems, increase customer satisfaction, and target revenue through effective analysis of user interactions with the organization’s Website.

Ruchi Gupta

2013-03-01

133

CERN Mobility Survey  

CERN Multimedia

The Institute of Shipping and Transport of the University of the Aegean and the National Technical University of Athens are partners with CERN in a study of mobility patterns between and within the CERN sites and to that effect have realized a mobility survey dedicated to the CERN community.         The study aims to understand: How you presently get around the CERN sites; What problems you encounter regarding mobility; What your needs are; What improvements you’d like to see; What measures you would like to see implemented most. The replies we receive will enable us to define a general policy promoting the diversity of mobility at CERN and to establish and quantify the strategic actions to be implemented for both the short and medium term. The objectives of the transport mobility plans are to: Facilitate mobility within and between the CERN sites by identifying adequate solutions in response to individual ...

GS Department

2011-01-01

134

NEXT GENERATION MOBILE COMPUTING?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile Computing is human Computer interaction which a computer is expected to betransported during normal usage which includes Mobile communication, Hardware, Software. Many of thesesystems operate within degraded network, power, or computing environments, such as for first-responders ina catastrophe, mobile phone users in remote regions or in countries where communication infrastructure isdegraded. The emergence of inexpensive remote-controlled aircraft in the market place for hobbyists and...

2013-01-01

135

Mobile Trillium Engine  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile trillium engine development, integration and deployment in clustered environment“The air transport industry has a constantly growing mobile workforce and a complex, dynamic workflow that requires workers to access and act on the real time information. Rapid mobilization and automation of the key workflow process will allow air transport industry to reduce business cost, better management and improved customer services.” [1]The aim of this thesis is to develop a backend system that ...

2013-01-01

136

MOBILE COMMERCE: A REVIEW  

Digital Repository Infrastructure Vision for European Research (DRIVER)

As the power of wireless increases, it provides various opportunities for improving services to customers. In today’s era, mobile commerce or M-Commerce has entered almost all the aspects of Business organizations like finance, retails, services, telecommunications and information technology services. This paper discusses the concept of Mobile Commerce. It looks at how the technology of Mobile Commerce has facilitated new business trends. After this there is detailed description of...

Shruti Jain

2012-01-01

137

Mobility, taxation and welfare  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Income mobility is often thought to equalize permanent incomes and thereby to improve social welfare. The welfare analysis of mobility often fails, however, to account for the cost of the variability of periodic incomes around permanent incomes. This paper assesses the net welfare benefit of mobility by assuming both a social aversion to inequality in permanent incomes and an individual aversion to variability in periodic incomes. The paper further investigates the combined (and comparative) ...

Bibi, Sami; Duclos, Jean-yves; Araar, Abdelkrim

2011-01-01

138

Mobile Web Accessibility Evaluation  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This work presents an approach to mobile Web accessibility evaluation allowing for Web content accessibility and mobile adequacy assessment, regarding different selectable disability profiles. We propose an extension to existing methodologies in order to fully encompass a thorough integration of mobile and accessibility guidelines within specific impairments perspectives and a prototype that serves as a proof of concept tool for that methodology. The integrated guidelines include MWBP and WCA...

Bandeira, Anto?nio Roge?rio Criso?stomo Campos

2010-01-01

139

Mobile Immersive Music  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Due to obvious portability constraints, mobile technology excludes large electronic displays for visual immersion. On the contrary, sound heard over headphones is ideally suited for mobile applications. The use of stereo headphones or stereo speakers on mobile devices enables to take advantage of binaural technology which can provide an immersive sound experience for a variety of applications ranging from stereo widening of music (creating an out of the head listening experience) to full 3-D ...

Lemordant, Jacques; Guerraz, Agnes

2007-01-01

140

Domino inspired MOBILE networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

MOBILE networks can be operated in a gate-level pipelined fashion allowing high through-output. If MOBILE gates are directly chained, a four-phase clock scheme is required. A single phase scheme has been recently reported that alternates rising and falling edge-triggered MOBILE gates. A novel two-phase interconnection scheme resembling conventional domino pipelines is proposed and validated. It exhibits advantages in terms of speed with respect to both four-phase and single-phase interconnect...

Nu?n?ez, Juan; Avedillo, M. J.; Quintana, J. M.

2012-01-01

 
 
 
 
141

Intrinsic mobility in graphene  

International Nuclear Information System (INIS)

Recent studies have shown that a high K dielectric solvent screens the impurities for room temperature transport in graphene and the mobility has been found to increase by orders of magnitude. This gives what is probably the intrinsic, phonon limited mobility at room temperature, and we have confirmed this with simulation. Mobility as high as 44 000 cm2 V-1 s-1 was achieved. At very low density, impurity scattering still is the determining factor for mobility, but this is significantly reduced in the recent experiments due to the dielectric screening. At high density, impurity scattering becomes negligible. (fast track communication)

2009-06-10

142

Intrinsic mobility in graphene.  

Science.gov (United States)

Recent studies have shown that a high K dielectric solvent screens the impurities for room temperature transport in graphene and the mobility has been found to increase by orders of magnitude. This gives what is probably the intrinsic, phonon limited mobility at room temperature, and we have confirmed this with simulation. Mobility as high as 44?000 cm(2) V(-1) s(-1) was achieved. At very low density, impurity scattering still is the determining factor for mobility, but this is significantly reduced in the recent experiments due to the dielectric screening. At high density, impurity scattering becomes negligible. PMID:21825578

Shishir, R S; Ferry, D K

2009-06-10

143

Intrinsic mobility in graphene  

Energy Technology Data Exchange (ETDEWEB)

Recent studies have shown that a high K dielectric solvent screens the impurities for room temperature transport in graphene and the mobility has been found to increase by orders of magnitude. This gives what is probably the intrinsic, phonon limited mobility at room temperature, and we have confirmed this with simulation. Mobility as high as 44 000 cm{sup 2} V{sup -1} s{sup -1} was achieved. At very low density, impurity scattering still is the determining factor for mobility, but this is significantly reduced in the recent experiments due to the dielectric screening. At high density, impurity scattering becomes negligible. (fast track communication)

Shishir, R S; Ferry, D K [Department of Electrical Engineering and Center for Solid State Electronics Research, Arizona State University, Tempe, AZ 85287 (United States)

2009-06-10

144

Predictors of Social Mobilization Speed  

CERN Document Server

Mobilization across social networks is becoming increasingly influential, but little is known about what traits of individuals and their relationships affect their speed of mobilization between them. We ran a global social mobilization contest and recorded personal traits of the participants and those they mobilized. We examined how those traits influenced the speed of mobilization. Individuals mobilized faster when they heard about the contest directly from the contest organization, and decreased in speed when hearing from less personal source types (e.g. family vs. media). Mobilization was faster when the mobilizer and the mobilized heard about the contest through the same source type, and slower when both individuals were in different countries. Females mobilized other females faster than males mobilized other males. Mobilization was faster with young recruiters and old recruits, and slower with old recruiters and young recruits. These findings suggest ways to optimize the speed of social mobilization.

Alstott, Jeff; Velu, Chander

2013-01-01

145

Mobilizing community energy  

International Nuclear Information System (INIS)

What explains the galvanising of communities to participate actively in energy projects? How do groups mobilize to overcome the often formidable barriers highlighted in the existing literature? Drawing on original qualitative research of 100 community energy groups in Scotland, including six in-depth case studies, we explain how effective mobilization occurs and the political dynamics surrounding such mobilization. To capture these dynamics, we adapt theories offered by literature on social movements, with a particular focus on resource mobilization theories. Applying our adapted framework, we identify two particular sets of resources shaping community energy mobilization: (i) structural resources, which refer to the broad political context structuring and constraining opportunities for community energy mobilization; and (ii) symbolic resources—less tangible resources used to galvanise participants. We investigate to what extent our case study groups were able to draw upon and exploit these resources. We find that structural resources can either facilitate or hinder mobilization; what matters is how state resources are exploited and constraints mitigated. The use of symbolic resources was highly effective in aiding mobilization. Each of the groups examined – despite their considerable variation – effectively exploited symbolic resources such as shared identity or desire for strong, self reliant communities. - Highlights: ? Explains how/why community energy groups mobilize and the political dynamics surrounding it. ? Draws on original qualitative research of 100 community energy groups in Scotland. ? Identifies two particular sets of resources (structural and symbolic) and their importance. ? Explains how these resources shape community energy mobilization in Scotland. ? Provides an original application of resource mobilization theory to the field of energy studies.

2012-12-01

146

Estimating and Learning the Trajectory of Mobile Phones  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This project is based on the ongoing data collection campaign by Nokia Re- search Center-Lausanne. We use location data sampled everyday by mobile phones in the campaign to estimate position of the participants. It is with emerging mobile systems that combines different sensors in a mobile phone so, we can merge different information sources to improve our estimations. Positioning is a problem encountered frequently in many applications. GPS is widely used for positioning but its output is no...

Hosseini Kamal, Mahdad

2010-01-01

147

The Microbial Colonisation of Mobile Phone Used by Healthcare Staffs  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile phones are dispensable accessories in social life and normally they are not cleaned properly. Therefore, they serve as a reservoir of bacteria and may cause nosocomial infections in hospitals. The purpose of this study was to investigate microbiological colonization of mobile phones used by healthcare staffs. The study was carried out collecting swab samples with Cary-Blair transport medium from mobile phones of attending healthcare staffs from different departments of three hosp...

Kilic, I. H.; Ozaslan, M.; Karagoz, I. D.; Zer, Y.; Davutoglu, V.

2009-01-01

148

Ion mobility spectroscopy  

International Nuclear Information System (INIS)

The physical fundamentals and application of ion mobility spectroscopy both as an independent analytical instrument and in combination with other analytical methods are described. Particular attention is devoted to the functioning of the ion mobility detector and to the formation mechanism of the different ions. (orig.)

1990-04-01

149

Mobile-first Bootstrap  

CERN Document Server

A practical, step-by-step tutorial on developing websites for mobile using Bootstrap.This book is for anyone who wants to get acquainted with the new features available in Bootstrap 3 and who wants to develop websites with the mobile-first feature of Bootstrap. The reader should have a basic knowledge of Bootstrap as a frontend framework.

Magno, Alexandre

2013-01-01

150

Mobile communications design fundamentals  

CERN Document Server

Revised and enlarged version that discusses how to design a mobile communications system. Comprehensively examines the mobile radio environment. Covers prediction of propagation loss, calculation and methods of reducing fades, interference, frequency plans and associated schemes, design parameters, signaling and channel access, cellular CDMA, microcell systems, and miscellaneous related systems. Contains chapter-by-chapter references and problems.

Lee, William C Y

2010-01-01

151

Mastering Mobile Security  

Science.gov (United States)

Without proper security, mobile devices are easy targets for worms, viruses, and so-called robot ("bot") networks. Hackers increasingly use bot networks to launch massive attacks against eCommerce websites--potentially targeting one's online tuition payment or fundraising/financial development systems. How can one defend his mobile systems against…

Panettieri, Joseph C.

2007-01-01

152

Wireless mobile Internet security  

CERN Document Server

  The mobile industry for wireless cellular services has grown at a rapid pace over the past decade. Similarly, Internet service technology has also made dramatic growth through the World Wide Web with a wire line infrastructure. Realization for complete wired/wireless mobile Internet technologies will become the future objectives for convergence of these technologies thr

Rhee, Man Young

2013-01-01

153

Mobility Test Article (MTA)  

Science.gov (United States)

A concept of a possible Lunar Roving Vehicle (LRV) built for NASA's Marshall Space Flight Center (MSFC). This Mobility Test Article (MTA) is one of many that provided data contributing to the design of the LRV, developed under the direction of MSFC. The LRV was designed to allow Apollo astronauts a greater range of mobility during lunar exploration missions.

1965-01-01

154

Mobile Learning Anytime, Anywhere  

Science.gov (United States)

Some educational institutions are taking the leap to mobile learning (m-learning) by giving out free iPods. For example, Abilene Christian University gave iPods or iPhones to freshman students and developed 15 Web applications specifically for the mobile devices. The iPod is not the only ubiquitous m-learning device. Any technology that connects…

Hlodan, Oksana

2010-01-01

155

Accept mobile: a mobile tool for the SINMETRO accept information system  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Increasing demand of mobile applications for on-site data acquisition pushes the development of flexible and easy to use mobile tools, with great advantages over the traditional computer-based approaches. The Accept System from SINMETRO allows data gathering for quality control, in the form of Inspection sheets. Such tool allows quality assurance by monitoring some samples of a given material, for instance milk, wine, and even maintenance management.

Caldeira, Joa?o; Dias, Edgar; Paulo, Bruno; Neves, Paulo

2009-01-01

156

Mobil. Annual report 1980. Mobil. Geschaeftsbericht 1980  

Energy Technology Data Exchange (ETDEWEB)

17% of all petroleum and natural gas wells in the Federal Republic of Germany have been drilled by Mobil Oil AG. The company has a 23% share in domestic natural gas production and a 13% share in domestic petroleum production. With its modern and non-polluting refineries, it has 10% of the total German refinery capacity at its disposal.

1982-01-01

157

Boat sampling  

International Nuclear Information System (INIS)

This presentation describes essential boat sampling activities: on site boat sampling process optimization and qualification; boat sampling of base material (beltline region); boat sampling of weld material (weld No. 4); problems accompanied with weld crown varieties, RPV shell inner radius tolerance, local corrosion pitting and water clarity. The equipment used for boat sampling is described too. 7 pictures

1994-03-29

158

Untraceability of Mobile Internet Users.  

Science.gov (United States)

Current mobile telecommunications providers conceal the records gathered about their subscribers from other subscribers and non-subscribers but not from the mobile telecommunications providers themselves. Thanks to the availability of these records, mobil...

C. Molina-Jimenez L. Marshall

2002-01-01

159

Charged particle mobility refrigerant analyzer  

Science.gov (United States)

A method for analyzing a gaseous electronegative species comprises the steps of providing an analysis chamber; providing an electric field of known potential within the analysis chamber; admitting into the analysis chamber a gaseous sample containing the gaseous electronegative species; providing a pulse of free electrons within the electric field so that the pulse of free electrons interacts with the gaseous electronegative species so that a swarm of electrically charged particles is produced within the electric field; and, measuring the mobility of the electrically charged particles within the electric field.

Allman, Steve L. (Knoxville, TN); Chen, Chung-Hsuan (Knoxville, TN); Chen, Fang C. (Knoxville, TN)

1993-01-01

160

Passive sampling of ambient ozone by solid phase microextraction with on-fiber derivatization  

International Nuclear Information System (INIS)

The solid phase microextraction (SPME) device with the polydimethylsiloxane/divinylbenzene (PDMS/DVB) fiber was used as a passive sampler for ambient ozone. Both O-2,3,4,5,6-(pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA) and 1,2-di-(4-pyridyl)ethylene (DPE) were loaded onto the fiber before sampling. The SPME fiber assembly was then inserted into a PTFE tubing as a passive sampler. Known concentrations of ozone around the ambient ground level were generated by a calibrated ozone generator. Laboratory validations of the SPME passive sampler with the direct-reading ozone monitor were performed side-by-side in an exposure chamber at 25 deg. C. After exposures, pyriden-4-aldehyde was formed due to the reaction between DPE and ozone. Further on-fiber derivatizations between pyriden-4-aldehyde and PFBHA were followed and the derivatives, oximes, were then determined by portable gas chromatography with electron capture detector. The experimental sampling rate of the SPME ozone passive sampler was found to be 1.10 x 10-4 cm3 s-1 with detection limit of 58.8 ?g m-3 h-1. Field validations with both SPME device and the direct-reading ozone monitor were also performed. The correlations between the results from both methods were found to be consistent with r = 0.9837. Compared with other methods, the current designed sampler provides a convenient and sensitive tool for the exposure assessments of ozone

2008-03-10

 
 
 
 
161

Embodied Cultures of Mobilities  

DEFF Research Database (Denmark)

The paper explores the relationship between the body and mobility by looking into a number of modes of transportation and their ways of constructing particular engagements with mobility. The â??mobile embodimentsâ?? are significant to a material and symbolic set of relations between human agents and material artifacts. The paper target the complex relationship between the moving, sensing body and the material and built environment of infrastructures and mobility modes in order to explore what norms, and meanings, and everyday life mobility cultures are being produced and re-produced in this process. A particular emphasis is put on how mobilities produce and re-produce norms, meanings and cultures in relation to the Everyday life perspective. By looking into walking, running, cycling, driving and mass transit mobilities different modes of embodied mobility is identified. The theoretical framework is based on a re-reading and re-interpretation of Gibsonâ??s theories of visual perception and motion, Lynchâ??s theories of the mobile experiences of the city, and Goffmanâ??s notions of â??presentation of selfâ?? and elaborations on ideas about interaction in motion. The new and innovative dimension to this paper is partly a new juxtaposition of three very different theorists that to the knowledge of this author never before has been combined. The theorists engaged with are all rather â??oldâ?? meaning that they are re-read in order to explore their underused potentials. However, this obviously also mean that more contemporary theorists understanding bodily movement, material sites of mobility, and social interactions must be consulted along the road (e.g. Latourâ??s work on objects and ANT, Thriftâ??s work on the body and â??non-representational theory, and Massumiâ??s notions of affects and emotions related to bodily mobility). More importantly though, is the new insights that a theoretical framing connecting perception and bodily motion (Gibson) with an understanding of the face-to-face bodily interaction (Goffman) and an explicit awareness to the meaning of the physical design of the sites and places of the bodily mobility and interaction (Lynch). The argument is thus that understanding embodied cultures of mobilities from the vantage point of this paper lend is self to new interpretations, explorations and understandings of what it means to move within and between other social agents in particular material and physical environments.

Jensen, Ole B.

2010-01-01

162

Client Mobile Software Design Principles for Mobile Learning Systems  

Directory of Open Access Journals (Sweden)

Full Text Available In a client-server mobile learning system, client mobile software must run on the mobile phone to acquire, package, and send student’s interaction data via the mobile communications network to the connected mobile application server. The server will receive and process the client data in order to offer appropriate content and learning activities. To develop the mobile learning systems there are a number of very important issues that must be addressed. Mobile phones have scarce computing resources. They consist of heterogeneous devices and use various mobile operating systems, they have limitations with their user/device interaction capabilities, high data communications cost, and must provide for device mobility and portability. In this paper we propose five principles for designing Client mobile learning software. A location-based adaptive mobile learning system is presented as a proof of concept to demonstrate the applicability of these design principles.

Qing Tan

2009-01-01

163

Mobility in single crystal Bi2Se3.  

Science.gov (United States)

Galvanomagnetic effects are measured in p-type Bi2Se3 in magnetic fields to 8 tesla. Both Hall and conductivity mobilities are determined between 4.2 and 300 K. Carrier compensation, as well as nearly equal electron and hole mobilities are found in samples with approximately 10 to the 25th power per cu m 3 total carrier concentration.

Woollam, j. A.; Beale, H.; Spain, I. L.

1972-01-01

164

Cooperative Mobile Web Browsing  

DEFF Research Database (Denmark)

This paper advocates a novel approach for mobile web browsing based on cooperation among wireless devices within close proximity operating in a cellular environment. In the actual state of the art, mobile phones can access the web using different cellular technologies. However, the supported data rates are not sufficient to cope with the ever increasing trafic requirements resulting from advanced and rich content services. Extending the state of the art, higher data rates can only be achieved by increasing complexity, cost, and energy consumption of mobile phones. In contrast to the linear extension of current technology, we propose a novel architecture where mobile phones are grouped together in clusters, using a short-range communication such as Bluetooth, sharing, and accumulating their cellular capacity. The accumulated data rate resulting from collaborative interactions over short-range links can then be used for cooperative mobile web browsing. By implementing the cooperative web browsing on commercial mobile phones, it will be shown that better performance is achieved in terms of increased data rate and therefore reduced access times, resulting in a significantly enhanced web browsing user experience on mobile phones. Copyright (C) 2009 G. P. Perrucci et al.

Perrucci, GP; Fitzek, FHP

2009-01-01

165

Mobile and contextual learning  

Directory of Open Access Journals (Sweden)

Full Text Available Is mobile learning just a part of everyday learning? This is a relevant question in an age when most people throughout the world now have access to mobile phones and mobility is increasingly taken for granted. In one sense, mobile learning is no different to carrying a textbook or learning through conversations at home, as part of formal education or in the workplace. The technology may be more engaging, but is the learning any different? Despite the ubiquity of mobile phones, smartphones, mp3 players and, increasingly, access to Wi-Fi connections and GPS navigation, the reasons for using mobile and wireless technologies in education are not yet widely known. There is significant specialist expertise, built from ten years of research (and more recently, reflective practice to demonstrate the unique characteristics of mobile learning, which include orchestrating shared learning with personal devices across formal and informal settings, providing immediately useful information, offering timely revision and reflection, connecting real and virtual locations, and enriching field trips and cultural visits. This knowledge needs to be disseminated and examined from new perspectives.

Agnes Kukulska-Hulme

2009-12-01

166

Cooperative Mobile Web Browsing  

Directory of Open Access Journals (Sweden)

Full Text Available This paper advocates a novel approach for mobile web browsing based on cooperation among wireless devices within close proximity operating in a cellular environment. In the actual state of the art, mobile phones can access the web using different cellular technologies. However, the supported data rates are not sufficient to cope with the ever increasing traffic requirements resulting from advanced and rich content services. Extending the state of the art, higher data rates can only be achieved by increasing complexity, cost, and energy consumption of mobile phones. In contrast to the linear extension of current technology, we propose a novel architecture where mobile phones are grouped together in clusters, using a short-range communication such as Bluetooth, sharing, and accumulating their cellular capacity. The accumulated data rate resulting from collaborative interactions over short-range links can then be used for cooperative mobile web browsing. By implementing the cooperative web browsing on commercial mobile phones, it will be shown that better performance is achieved in terms of increased data rate and therefore reduced access times, resulting in a significantly enhanced web browsing user experience on mobile phones.

Zhang Q

2009-01-01

167

Device for grabbing a core sample  

Energy Technology Data Exchange (ETDEWEB)

The device for grabbing a core sample contains an outer pipe inner core sample receiver, core extractor and mechanism for moving the core sample receiver and core extractor connected to a string of drilling pipes by a element which is mobile in relation to the outer pipe. The mechanism of movement is made in the form of a compound pulley cable system with fixed roller attached on the outer pipe, and two mobile ends of the cable, one of which is connected to the core sample receiver and the other through a mobile element to the drilling pipe string. The end of the cable connected to the mobile element is equipped with a spring compensating for length.

Bobylev, F.A.; Kurilo, M.I.; Sorokoumov, V.M.

1979-12-15

168

Mobility Experiences of Adolescents with Cerebral Palsy  

Science.gov (United States)

The purpose of this study was to describe how youth with cerebral palsy experience mobility in their daily lives using a phenomenological approach. The participants were 10 youth with cerebral palsy, 17 to 20 years of age, selected using purposeful sampling with maximum variation strategies. A total of 14 interviews were completed. Transcripts…

Palisano, Robert J.; Shimmell, Lorie J.; Stewart, Debra; Lawless, John J.; Rosenbaum, Peter L.; Russell, Dianne J.

2009-01-01

169

Mobility of radiocesium in soils around Bratislava  

International Nuclear Information System (INIS)

For evaluation of contamination by radiocesium and their mobility on model territory according proposition of environmental geoinformation system (EGIS) the method based on sequential dissolution of soils artificially contaminated with radiocesium was developed. 76 samples of soil horizons from 16 probes were analyzed. Obtained results are discussed

1999-09-01

170

Mobile sociology. 2000.  

Science.gov (United States)

This article seeks to develop a manifesto for a sociology concerned with the diverse mobilities of peoples, objects, images, information, and wastes; and of the complex interdependencies between, and social consequences of, such diverse mobilities. A number of key concepts relevant for such a sociology are elaborated: 'gamekeeping', networks, fluids, scapes, flows, complexity and iteration. The article concludes by suggesting that a 'global civil society' might constitute the social base of a sociology of mobilities as we move into the twenty-first century. PMID:20092503

Urry, John

2010-01-01

171

Mobility of Hellenistic women  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The purpose of the current thesis is to study various aspects of women’s mobility in the so-called Hellenistic period. It will attempt to provide answers to the questions ‘why did women travel,’ ‘how common was it for women to travel,’ and most importantly, ‘did women take part in the Hellenistic colonisation processes.’ The importance of women’s mobility for the Greek societies as a whole will also be evaluated. To study the mobility of Hellenistic women we shall use a wi...

Loman, Pasi

2004-01-01

172

Mobile communication and intermediality  

DEFF Research Database (Denmark)

The article argues the importance of intermediality as a concept for research in mobile communication and media. The constant availability of several, partially overlapping channels for communication (texting, calls, email, Facebook, etc.) requires that we adopt an integrated view of the various communicative affordances of mobile devices in order to understand how people choose between them for different purposes. It is argued that mobile communication makes intermediality especially central, as the choice of medium is detached from the location of stationary media and begins to follow the user across all contexts of daily life

Helles, Rasmus

2013-01-01

173

Mobile ad hoc networking  

CERN Multimedia

"Assimilating the most up-to-date information on research and development activities in this rapidly growing area, Mobile Ad Hoc Networking covers physical, data link, network, and transport layers, as well as application, security, simulation, and power management issues in sensor, local area, personal, and mobile ad hoc networks. Each of the book's sixteen chapters has been written by a top expert and discusses in-depth the most important topics in the field. Mobile Ad Hoc Networking is an excellent reference and guide for professionals seeking an in-depth examination of topics that also provides a comprehensive overview of the current state-of-the-art."--Jacket.

John Wiley & Sons

2004-01-01

174

Mobile radio channels  

CERN Document Server

Providing a comprehensive overview of the modelling, analysis and simulation of mobile radio channels, this book gives a detailed understanding of fundamental issues and examines state-of-the-art techniques in mobile radio channel modelling. It analyses several mobile fading channels, including terrestrial and satellite flat-fading channels, various types of wideband channels and advanced MIMO channels, providing a fundamental understanding of the issues currently being investigated in the field. Important classes of narrowband, wideband, and space-time wireless channels are explored in deta

Pätzold, Matthias

2011-01-01

175

Mobile networks architecture  

CERN Multimedia

This book explains the evolutions of architecture for mobiles and summarizes the different technologies:- 2G: the GSM (Global System for Mobile) network, the GPRS (General Packet Radio Service) network and the EDGE (Enhanced Data for Global Evolution) evolution;- 3G: the UMTS (Universal Mobile Telecommunications System) network and the HSPA (High Speed Packet Access) evolutions:- HSDPA (High Speed Downlink Packet Access),- HSUPA (High Speed Uplink Packet Access),- HSPA+;- 4G: the EPS (Evolved Packet System) network.The telephone service and data transmission are the

Perez, Andre

2013-01-01

176

Explaining mobile commerce services adoption by different type of customers  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile phones have been proclaimed as the new service frontier. Nowadays, in addition to traditional mobile services, new mobile commerce services are ready to be used by customers based on 3G-related technologies. However, little is known about the reasons why different groups of customers adopt mobile commerce services. By means of a sample of 542 Dutch consumers, we analyze the acceptance of these services by four different groups of customers. We finish our work providing interesting conclusions for academics as well as practitioners

Francisco J. Molina-Castillo

2008-12-01

177

Mobile phone based SCADA for industrial automation.  

Science.gov (United States)

SCADA is the acronym for "Supervisory Control And Data Acquisition." SCADA systems are widely used in industry for supervisory control and data acquisition of industrial processes. Conventional SCADA systems use PC, notebook, thin client, and PDA as a client. In this paper, a Java-enabled mobile phone has been used as a client in a sample SCADA application in order to display and supervise the position of a sample prototype crane. The paper presents an actual implementation of the on-line controlling of the prototype crane via mobile phone. The wireless communication between the mobile phone and the SCADA server is performed by means of a base station via general packet radio service (GPRS) and wireless application protocol (WAP). Test results have indicated that the mobile phone based SCADA integration using the GPRS or WAP transfer scheme could enhance the performance of the crane in a day without causing an increase in the response times of SCADA functions. The operator can visualize and modify the plant parameters using his mobile phone, without reaching the site. In this way maintenance costs are reduced and productivity is increased. PMID:16480111

Ozdemir, Engin; Karacor, Mevlut

2006-01-01

178

Nonprobability Sampling  

Science.gov (United States)

This site, created by author William M.K. Trochim, describes numerous methods of nonprobability sampling, including accidental, haphazard or convenience sampling and many other types of purposive methods. Some of these purposive methods he describes are: modal instance, expert, quota, heterogeneity, and snowball sampling. Overall, this is a good, albeit brief, overview of the subject of nonprobability sampling.

Trochim, William M.

2008-12-12

179

Mobilizing Totalview - Designing Middleware for Mobile Solutions  

Digital Repository Infrastructure Vision for European Research (DRIVER)

As smartphones become more sophisticated and continue to evolve, they are slowly becoming an integral tool for businesses. A massive growth of smartphones in the recent years has led to them becoming far more common; they are gradually rising from being only a gadget to a tool of necessity. This thesis explores the possibility of designing a mobile client as an add-on solution to an already existent unified communications system, Totalview. Totalview is a presence and time resource mana...

Ellingsgaard, John

2011-01-01

180

Mobile-to-Mobile Video Recommendation  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile device users can now easily capture and socially share video clips in a timely manner by uploading them wirelessly to a server. When attending crowded events, such as an exhibition or the Olympic Games, however, timely sharing of videos becomes difficult due to choking bandwidth in the network infrastructure, preventing like-minded attendees from easily sharing videos with each other through a server. One solution to alleviate this problem is to use direct device-to-d...

Seshadri, Padmanabha Venkatagiri; Chan, Mun Choon; Ooi, Wei Tsang

2012-01-01

 
 
 
 
181

Intelligent mobile security systems.  

Science.gov (United States)

Mobile security systems are becoming increasingly important to military (Army, Air Force) and non-military (Drug Enforcement Agency, Border Patrol) organizations as the level and sophistication of terrorist activity increases. Frequently, organizations ar...

M. S. Allen

1991-01-01

182

Mobile School Service  

Directory of Open Access Journals (Sweden)

Full Text Available What is in common for the majority of young people? Mobile phone. In epoch of rapid development of information technologies the time came in which only few people do not have mobiles, especially among young people in high schools. Researches which we made in our school say that this percentage (rate is really high 99,23% at this moment. The educational institutions should use this opportunity. In aim to improve the success of students the mobile service is developed, which will be described in this work. This is first result which provides a cognitive tool which is supporting the independent learning by applying mobile phones with wireless communication technology to extend learning outside of the classroom in Serbia. The service was developed during times when we didn’t know anything about how much and in which way m-learning was being used in the world.

Borislav Odadzic

2010-04-01

183

Mobile Learning Applications Audit  

Directory of Open Access Journals (Sweden)

Full Text Available While mobile learning (m-learning applications have proven their value in educational activities, there is a need to measure their reliability, accessibility and further more their trustworthiness. Mobile devices are far more vulnerable then classic computers and present inconvenient interfaces due to their size, hardware limitations and their mobile connectivity. Mobile learning applications should be audited to determine if they should be trusted or not, while multimedia contents like automatic speech recognition (ASR can improve their accessibility. This article will start with a brief introduction on m-learning applications, then it will present the audit process for m-learning applications, it will iterate their specific security threats, it will define the ASR process, and it will elaborate how ASR can enhance accessibility of these types of applications.

Paul POCATILU

2010-01-01

184

A mobile agent manager  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Friendliness on user interfaces has been mostly forgot in mobile agent research. In fact the multitude of problems that have to be solved have left this more "simple" piece of the package out of target. However, the success of technology comes also from this important layer in the product development. This paper describes an application that integrates monitoring data from the mobile agents environment, process and presents information in different ways according to different user req...

2003-01-01

185

Mobile Ad Hoc Network  

Digital Repository Infrastructure Vision for European Research (DRIVER)

As a new generation of wireless communication system, mobile ad-hoc network has developed greatly during the past ten years. Endowed by great mobility, dynamic topology, self-organizing and other unique features, it is commonly used in emergency operations, disaster relief efforts and military networks. However, this new wireless network has lots of technical challenges and potential benefits need to be discovered and conquered. Without a doubt, we will soon be able to see ad-hoc network depl...

Li, Chengcheng

2010-01-01

186

MOBILE SOFTWARE TRAINING ?????????? ?????? ?????????? ????????  

Directory of Open Access Journals (Sweden)

Full Text Available Relevance of the material contained in the article, due to the necessity in shuku ways of optimizing the process of training in high school, which becomes possible through the use of mobile information and communication technologies. The work-rod lyanuto modern software mobile information and communication technologies and learning tools that enable students to provide ongoing access to resources, teach-ence school.???????????? ?????????, ??????????? ? ??????, ???????????? ???????????? ?????? ?????? ??????????? ??????? ???????? ? ????? ?????, ?? ???? ???????? ??????? ???????????? ????????? ????????????-?????????????? ??????????. ? ?????? ?????????? ??????? ????????? ???????? ????????????-????????????? ?????????? ? ?????? ????????, ?? ??????? ?????????? ??????????? ????????? ????????? ?????? ?? ?????????? ???????? ??????????? ???????.

Nataliya V. Rashevs’ka

2011-03-01

187

Implementing Strong Code Mobility  

Directory of Open Access Journals (Sweden)

Full Text Available This study presents the idea of implementing strong code mobility in terms of platform independence, microprocessor architecture reliance and resource management. Proposed system establishes a shared connection with the resources and its surrounding environment based on distributed structured XML-based knowledge. The resources managed by the process are shared between the nodes, so that the developer can program in a centralized setting. The goal is to present a solution for strong code mobility for commonly used platforms.

Muhammad Kamran Naseem

2004-01-01

188

REST based mobile applications  

Science.gov (United States)

Simplicity is the major advantage of REST based webservices. Whereas SOAP is widespread in complex, security sensitive business-to-business aplications, REST is widely used for mashups and end-user centric applicatons. In that context we give an overview of REST and compare it to SOAP. Furthermore we apply the GeoDrawing application as an example for REST based mobile applications and emphasize on pros and cons for the use of REST in mobile application scenarios.

Rambow, Mark; Preuss, Thomas; Berdux, Jörg; Conrad, Marc

2008-03-01

189

Mobile portal services  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The master thesis is examining the possibilities to integrate a mobile unit in a portal service built on a service oriented architecture. A portal is an overall solution for the need of public web, intranet and extranet of an enterprise. The thesis starts off by identifying interesting business concepts for mobile units. Then a specific concept is chosen to be implemented as a smart client solution. On the way to the final prototype application areas such as occasionally connected clients, di...

Jansson, Erik

2005-01-01

190

eTactica Mobile  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Our project involves the design and implementation of a mobile version of the company’s eTactica web portal, formally known as eTactica Mobile. It is a web application for smartphones, displaying a compact version of a dashboard, similar to the one on eTactica, containing information about business or household electricity consumption. The cost, usage and carbon footprint information is available as well as the functionality of an alert inbox.

Guđrún Hauksdóttir 1978; Jón Valentínusson 1977; Oddur Ađalgeirsson 1989; Rúnar Freyr Rúnarsson 1988

2012-01-01

191

Towards mobile collaborative exergaming  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Today’s high calorie diets and low physical activity levels contributes towards childhood obesity. Exergaming, a combination of ”exercise” and ”gaming” was conceived as a means of addressing this problem. In this paper a mobile collaborative exergame, which is designed to be enjoyable and physically challenging, is presented. The long term objective is to harness conventional mobile computing technologies to deliver a platform for games that are adaptive to the exercise req...

Gorgu, Levent; O Hare, G. M. P.; O Grady, Michael J.

2009-01-01

192

Anthropometric Mobility During Childhood  

Digital Repository Infrastructure Vision for European Research (DRIVER)

While childhood obesity has become a significant public health concern over the last few decades, knowledge concerning the origins of or persistence in childhood anthropometric measures is incomplete. Here, we utilize several nonparametric measures of mobility to assess the evolution of weight, height, and body mass index during early childhood. We find that mobility is quite high prior to primary school and then declines noticeably. However, there are important sources of heterogeneity, incl...

Millimet, Daniel L.; Tchernis, Rusty

2013-01-01

193

"Mobile Fashion" Application  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This master thesis investigates studies on fashion oriented people according to the "Outfit-Centric Accessories" concept. The outfit-centric accessories concept originated from recent research study by Juhlin and Zhang (2011) about mobile phone representation in fashion and Aesthetic of Interaction area of Human-Computer Interaction (HCI). The term outfit-centric accessories originated from clothing and wearer. In this concept an outfit is playing a role as the centerpiece and a mobile phone ...

Kashanipour, Morvarid

2012-01-01

194

Multi Mobile System  

Digital Repository Infrastructure Vision for European Research (DRIVER)

L’importance des prix des surfaces ŕ bâtir dans les grandes villes nécessite la construction de buildings de grande envergure. Ces bâtiments requičrent cependant plusieurs ascenseurs qui utilisent ŕ eux-seuls beaucoup d’espace et diminuent la rentabilité d’une telle construction. C’est lŕ qu’intervient le projet « Multi Mobile Systems ». Son but est l’utilisation de plusieurs cabines mobiles dans une męme cage, actionnées ŕ l’aide de moteurs linéaires.Nous commence...

Houriet, Bertrand

2010-01-01

195

Social mobility and fertility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Intra- and inter-generational social mobility have in the past played an important role in attempts to explain fertility behaviour, and continue to do so today. The opinions expressed by social scientists in the first part of the 20th century are renewed and confirmed. More specifically: (1) intra-generational social mobility has been reinforced by the personal well-being aspirations and job careers of women; (2) status anxiety parents feel for their children pushes fertility down in large ar...

Gianpiero Dalla Zuanna

2007-01-01

196

Low-Cost Mobile Phone Microscopy with a Reversed Mobile Phone Camera Lens  

Science.gov (United States)

The increasing capabilities and ubiquity of mobile phones and their associated digital cameras offer the possibility of extending low-cost, portable diagnostic microscopy to underserved and low-resource areas. However, mobile phone microscopes created by adding magnifying optics to the phone's camera module have been unable to make use of the full image sensor due to the specialized design of the embedded camera lens, exacerbating the tradeoff between resolution and field of view inherent to optical systems. This tradeoff is acutely felt for diagnostic applications, where the speed and cost of image-based diagnosis is related to the area of the sample that can be viewed at sufficient resolution. Here we present a simple and low-cost approach to mobile phone microscopy that uses a reversed mobile phone camera lens added to an intact mobile phone to enable high quality imaging over a significantly larger field of view than standard microscopy. We demonstrate use of the reversed lens mobile phone microscope to identify red and white blood cells in blood smears and soil-transmitted helminth eggs in stool samples.

Fletcher, Daniel A.

2014-01-01

197

Low-cost mobile phone microscopy with a reversed mobile phone camera lens.  

Science.gov (United States)

The increasing capabilities and ubiquity of mobile phones and their associated digital cameras offer the possibility of extending low-cost, portable diagnostic microscopy to underserved and low-resource areas. However, mobile phone microscopes created by adding magnifying optics to the phone's camera module have been unable to make use of the full image sensor due to the specialized design of the embedded camera lens, exacerbating the tradeoff between resolution and field of view inherent to optical systems. This tradeoff is acutely felt for diagnostic applications, where the speed and cost of image-based diagnosis is related to the area of the sample that can be viewed at sufficient resolution. Here we present a simple and low-cost approach to mobile phone microscopy that uses a reversed mobile phone camera lens added to an intact mobile phone to enable high quality imaging over a significantly larger field of view than standard microscopy. We demonstrate use of the reversed lens mobile phone microscope to identify red and white blood cells in blood smears and soil-transmitted helminth eggs in stool samples. PMID:24854188

Switz, Neil A; D'Ambrosio, Michael V; Fletcher, Daniel A

2014-01-01

198

Aero particles characterization emitted by mobile sources  

International Nuclear Information System (INIS)

In our country, the mobile sources that conform most of the emissions at the atmosphere, are concentrated on the urban areas. For the present work, samples coming from the escapes of terrestrial transport were obtained, such as: passenger buses, load transport and particular vehicles of the Metropolitan area of the Toluca valley. The material was analyzed by means of scanning electron microscopy of low vacuum and X-ray diffraction. The objective was to characterize the emitted particles by mobile sources, morphological and chemically to know the structure, size and elements that compose them. (Author)

2009-12-02

199

Mobile medical image retrieval  

Science.gov (United States)

Images are an integral part of medical practice for diagnosis, treatment planning and teaching. Image retrieval has gained in importance mainly as a research domain over the past 20 years. Both textual and visual retrieval of images are essential. In the process of mobile devices becoming reliable and having a functionality equaling that of formerly desktop clients, mobile computing has gained ground and many applications have been explored. This creates a new field of mobile information search & access and in this context images can play an important role as they often allow understanding complex scenarios much quicker and easier than free text. Mobile information retrieval in general has skyrocketed over the past year with many new applications and tools being developed and all sorts of interfaces being adapted to mobile clients. This article describes constraints of an information retrieval system including visual and textual information retrieval from the medical literature of BioMedCentral and of the RSNA journals Radiology and Radiographics. Solutions for mobile data access with an example on an iPhone in a web-based environment are presented as iPhones are frequently used and the operating system is bound to become the most frequent smartphone operating system in 2011. A web-based scenario was chosen to allow for a use by other smart phone platforms such as Android as well. Constraints of small screens and navigation with touch screens are taken into account in the development of the application. A hybrid choice had to be taken to allow for taking pictures with the cell phone camera and upload them for visual similarity search as most producers of smart phones block this functionality to web applications. Mobile information access and in particular access to images can be surprisingly efficient and effective on smaller screens. Images can be read on screen much faster and relevance of documents can be identified quickly through the use of images contained in the text. Problems with the many, often incompatible mobile platforms were discovered and are listed in the text. Mobile information access is a quickly growing domain and the constraints of mobile access also need to be taken into account for image retrieval. The demonstrated access to the medical literature is most relevant as the medical literature and their images are clearly the largest knowledge source in the medical field.

Duc, Samuel; Depeursinge, Adrien; Eggel, Ivan; Müller, Henning

2011-03-01

200

Sampling apparatus  

International Nuclear Information System (INIS)

Object: To make a sampling piping in the form of a closed circuit thereby preventing release of radioactive and injurious material within a sample liquid outside to avoid air contamination within a reactor house. Structure: A fluid extracting sampling pipe is connected to a process mother pipe connected to an atomic power plant or the like, and to the sampling pipe is connected to a sample board provided with various measuring devices for measuring characteristics of the sample fluid. Further, a conduit for discharging the measured sample water to a main condenser line is connected to the sample board, the conduit having in the midst thereof a fluid resisting means composed of an upwardly extending U-seal. (Furukawa, Y.)

1976-01-01

 
 
 
 
201

Mobile Web – Enterprise Application Advantages  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper enlightens the benefits offered by enabling web applications on Mobile devices and also addresses the current business challenges in developing Mobile Web applications. This paper is intended for all business domains irrespective of application portfolios. Mobile enterprise application platform solutions are the core technology offerings that enable mobile enterprise applications and are the basis for organizations that are building, deploying, and supporting mobile enterprise appl...

2013-01-01

202

Presence experience in mobile gaming  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Wireless mobile gaming is becoming more popular. A growing number of people play computer games with small-screen mobile devices such as handheld computers, mobile phones and handheld game consoles. One reason to the success of these devices is that they provide the opportunity to play games nearly everywhere. However, despite of the popularity of mobile gaming, quite little is known about the game experience when people use mobile devices. For example, it could be hypothesized that the game ...

Laarni, Jari

2005-01-01

203

Security in Unlicensed Mobile Access  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Unlicensed Mobile Access (UMA) provides transparent access to 2G and 3G networks for Mobile Stations over the unlicensed radio interface. Unlicensed radio tehnologies such as Bluetooth or WLAN technology connects the Mobile Station to the fixed IP network of the home or office and delivers high bandwith to the Mobile Station. The purpose of this report is to examine if subscribers can feel as secure using UMA as they do when using any of the alternetive mobile technologies that UMA supports. ...

Eriksson, Martin

2005-01-01

204

Mobile concrete factory profiability analysis  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Diploma task deals with the preparation of concrete in the mobile and stationary concrete factory, transport of concrete and the comparison between the cost of preparation of concrete in the mobile and stationary concrete factory. Represented is the way of preparation of concrete in the mobile and stationary concrete factory. I conducted an analysis of the viability of mobile concrete factory, based on a comparison of the cost of preparation of concrete in the mobile and the cost of preparing...

Bajz?elj, Grega

2009-01-01

205

Robustness analyses for repeated mobility surveys in outdoor advertising  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A growing number of companies use mobility data in their day-to-day business. However, as the data grows older, new data has to be collected in order to keep applications up-to-date. Consequently, it is of great importance to know the impact that a different mobility sample may cause. This aspect of analysis has been largely neglected in mobility data mining research so far. In this paper we therefore analyze the robustness of performance measures with respect to a changed GPS sample in outdo...

Hecker, Dirk; Ko?rner, Christine; May, Michael

2011-01-01

206

Environmental sampling  

International Nuclear Information System (INIS)

Following the discovery of Iraq's clandestine nuclear weapons program after the Gulf War, the IAEA Standing Advisory Group on safeguards Implementation submitted its recommendations for improving the effectiveness and efficiency of the safeguards system. One of the principal recommendations for a strengthened safeguards system was to assess the effectiveness and costs of environmental monitoring to detect undeclared nuclear activities at declared sites and at sites not declared. The implementation of swipe sampling for routine IAEA safeguards under the 1995 strengthening measures is well underway. Sampling guidelines and plans have been developed to optimize sample collection and analysis. Baseline swipe samples have been collected at some 900 sampling points in more than 60 enrichment plants and hot cell complexes under safeguards with additional facilities to ne samples this year. Some 150 inspectors have been trained in proper techniques for sample collection and handling using approved procedures with standardized sampling kits. The IAEA Clean laboratory supports the implementation in receiving, screening, distributing, and archiving of the swipe samples. It is anticipated that implementation of environmental sampling under existing Agency authority will be extended to other types of nuclear facilities. With the approval of the Model Protocol by the Boards of Governors in May 1997 which provides the Agency with complementary legal authority to apply safeguards, environmental sampling may eventually include the collection of other types of samples exterior to facilities and sites

1998-05-11

207

Stackable differential mobility analyzer for aerosol measurement  

Energy Technology Data Exchange (ETDEWEB)

A multi-stage differential mobility analyzer (MDMA) for aerosol measurements includes a first electrode or grid including at least one inlet or injection slit for receiving an aerosol including charged particles for analysis. A second electrode or grid is spaced apart from the first electrode. The second electrode has at least one sampling outlet disposed at a plurality different distances along its length. A volume between the first and the second electrode or grid between the inlet or injection slit and a distal one of the plurality of sampling outlets forms a classifying region, the first and second electrodes for charging to suitable potentials to create an electric field within the classifying region. At least one inlet or injection slit in the second electrode receives a sheath gas flow into an upstream end of the classifying region, wherein each sampling outlet functions as an independent DMA stage and classifies different size ranges of charged particles based on electric mobility simultaneously.

Cheng, Meng-Dawn (Oak Ridge, TN); Chen, Da-Ren (Creve Coeur, MO)

2007-05-08

208

Stationary and Mobile Target Detection using Mobile Wireless Sensor Networks  

CERN Document Server

In this work, we study the target detection and tracking problem in mobile sensor networks, where the performance metrics of interest are probability of detection and tracking coverage, when the target can be stationary or mobile and its duration is finite. We propose a physical coverage-based mobility model, where the mobile sensor nodes move such that the overlap between the covered areas by different mobile nodes is small. It is shown that for stationary target scenario the proposed mobility model can achieve a desired detection probability with a significantly lower number of mobile nodes especially when the detection requirements are highly stringent. Similarly, when the target is mobile the coverage-based mobility model produces a consistently higher detection probability compared to other models under investigation.

Yanmaz, Evsen; 10.1109/INFCOMW.2010.5466620

2010-01-01

209

Mobile systems capability plan  

Energy Technology Data Exchange (ETDEWEB)

This plan was prepared to initiate contracting for and deployment of these mobile system services. 102,000 cubic meters of retrievable, contact-handled TRU waste are stored at many sites around the country. Also, an estimated 38,000 cubic meters of TRU waste will be generated in the course of waste inventory workoff and continuing DOE operations. All the defense TRU waste is destined for disposal in WIPP near Carlsbad NM. To ship TRU waste there, sites must first certify that the waste meets WIPP waste acceptance criteria. The waste must be characterized, and if not acceptable, subjected to additional processing, including repackaging. Most sites plan to use existing fixed facilities or open new ones between FY1997-2006 to perform these functions; small-quantity sites lack this capability. An alternative to fixed facilities is the use of mobile systems mounted in trailers or skids, and transported to sites. Mobile systems will be used for all characterization and certification at small sites; large sites can also use them. The Carlsbad Area Office plans to pursue a strategy of privatization of mobile system services, since this offers a number of advantages. To indicate the possible magnitude of the costs of deploying mobile systems, preliminary estimates of equipment, maintenance, and operating costs over a 10-year period were prepared and options for purchase, lease, and privatization through fixed-price contracts considered.

NONE

1996-09-01

210

Mobile systems capability plan  

International Nuclear Information System (INIS)

This plan was prepared to initiate contracting for and deployment of these mobile system services. 102,000 cubic meters of retrievable, contact-handled TRU waste are stored at many sites around the country. Also, an estimated 38,000 cubic meters of TRU waste will be generated in the course of waste inventory workoff and continuing DOE operations. All the defense TRU waste is destined for disposal in WIPP near Carlsbad NM. To ship TRU waste there, sites must first certify that the waste meets WIPP waste acceptance criteria. The waste must be characterized, and if not acceptable, subjected to additional processing, including repackaging. Most sites plan to use existing fixed facilities or open new ones between FY1997-2006 to perform these functions; small-quantity sites lack this capability. An alternative to fixed facilities is the use of mobile systems mounted in trailers or skids, and transported to sites. Mobile systems will be used for all characterization and certification at small sites; large sites can also use them. The Carlsbad Area Office plans to pursue a strategy of privatization of mobile system services, since this offers a number of advantages. To indicate the possible magnitude of the costs of deploying mobile systems, preliminary estimates of equipment, maintenance, and operating costs over a 10-year period were prepared and options for purchase, lease, and privatization through fixed-price contracts considered

1996-01-01

211

Overbooking in Mobile Backhaul  

Directory of Open Access Journals (Sweden)

Full Text Available The rapid increase of mobile data subscribers and deployment of broadband radio access networks pushmobile operators to upgrade their mobile backhaul from expensive legacy TDM transport to carrierEthernet for cheaper operational expenditures. The Metro Ethernet Forum has defined a set of EthernetVirtual Connection services that are adopted to provide scalable Ethernet transport for mobile backhaul.However, these services usually address single cell site backhaul per UNI handoff, neither consideringstatistical multiplexing gain at a hub site which aggregates backhaul traffics of multiple cell sites, norsupporting Quality-of-Service provisioning in overbooked backhaul pipe. This paper proposed an efficientcarrier Ethernet overbooking solution for mobile backhaul. A statistical estimation method has beendeveloped for deriving a safe overbooking factor at a given UNI. Then two efficient transport architectureswere proposed to support bandwidth sharing in cellular cluster with overbooked backhaul bandwidth incarrier Ethernet. A novel bandwidth control algorithm has been derived at customer edge device to provideQuality-of-Service for multimedia traffics over overbooked UNI, with SLA policing and protection on highpriority services. Experimental data analysis and simulations have showed that our new schemes canbenefit mobile operators in resource utilization efficiency, carrier Ethernet cost saving and backhaulperformance.

Chunming Liu

2013-08-01

212

NEXT GENERATION MOBILE COMPUTING?  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile Computing is human Computer interaction which a computer is expected to betransported during normal usage which includes Mobile communication, Hardware, Software. Many of thesesystems operate within degraded network, power, or computing environments, such as for first-responders ina catastrophe, mobile phone users in remote regions or in countries where communication infrastructure isdegraded. The emergence of inexpensive remote-controlled aircraft in the market place for hobbyists andbusinesses has created new use cases and challenges in surveillance and security, property surveying, homeand car showcasing, search-and-rescue operations, and entertainment. Such remote-controlled aircraft usecases are likely to operate in both urban and rural environments and will face degraded communicationinfrastructure and power management concerns while maintaining and respecting quality-of-serviceproperties for information, in support of search-and-rescue crews, law enforcement, or other support needs.In each of this scenario’s the desires and needs of the mobile computing customers are likely to outstrip thecapacities of the supporting infrastructure, and the result can be degraded performance.Next generation mobile computing should increase the performance of receiving useful services and it shouldalso increase the quality of services.

N. LAKSHMI PRASANNA

2013-09-01

213

Handbook of Mobile Ad Hoc Networks for Mobility Models  

CERN Multimedia

The Mobile Ad Hoc Network (MANET) has emerged as the next frontier for wireless communications networking in both the military and commercial arena. Handbook of Mobile Ad Hoc Networks for Mobility Models introduces 40 different major mobility models along with numerous associate mobility models to be used in a variety of MANET networking environments in the ground, air, space, and/or under water mobile vehicles and/or handheld devices. These vehicles include cars, armors, ships, under-sea vehicles, manned and unmanned airborne vehicles, spacecrafts and more. This handbook also describes how ea

Roy, Radhika Ranjan

2011-01-01

214

Intelligent mobile security systems  

International Nuclear Information System (INIS)

This paper reports that mobile security systems are becoming increasingly important to military (Army, Air Force) and non-military (Drug Enforcement Agency, Border Patrol) organizations as the level and sophistication of terrorist activity increases. Frequently, organizations are required to deploy at remote sites on little notice. To ensure protection of life and equipment, security systems are sometimes required. Often, the personnel deployed on these missions are not adequately trained in the selection, installation, and operation of today's complex security equipment. The Intelligent Mobile Security System (IMSS) concept, as being developed by Sandia National Laboratories (SNL), allows untrained, non-technical personnel to configure, deploy, operate, and troubleshoot temporary/mobile physical security system. The IMSS may be used at nuclear facilities

1991-07-28

215

Intelligent mobile security systems  

Energy Technology Data Exchange (ETDEWEB)

This paper reports that mobile security systems are becoming increasingly important to military (Army, Air Force) and non-military (Drug Enforcement Agency, Border Patrol) organizations as the level and sophistication of terrorist activity increases. Frequently, organizations are required to deploy at remote sites on little notice. To ensure protection of life and equipment, security systems are sometimes required. Often, the personnel deployed on these missions are not adequately trained in the selection, installation, and operation of today's complex security equipment. The Intelligent Mobile Security System (IMSS) concept, as being developed by Sandia National Laboratories (SNL), allows untrained, non-technical personnel to configure, deploy, operate, and troubleshoot temporary/mobile physical security system. The IMSS may be used at nuclear facilities.

Allen, M.S. (Advanced Systems Integration, Sandia National Lab., Albuquerque, NM (US))

1991-01-01

216

Exxon and Mobil Merge  

Science.gov (United States)

This week's In the News looks at the recent megamerger between Exxon Corporation and Mobil Corporation. The ten resources discussed provide news, financial data, and opinion on the largest corporate purchase to date as well as information on the oil industry in general. In a move deemed "the end of the age of OPEC" by Wall Street Journal reporter Bernard Wysocki, Exxon Chairman Lee R. Raymond formally bought Mobil Oil Company for $74.4 billion on December 1, 1998. Critics of the deal await antitrust scrutiny, although officials at Exxon Mobil, as the new company will be called, cite a "volatile world economy" and the need to "enhance global competition" as central to their decision.

Waters, Megan.

1998-01-01

217

Mobile Robot Navigation  

DEFF Research Database (Denmark)

Abstract Robots will soon take part in everyoneâ??s daily life. In industrial production this has been the case for many years, but up to now the use of mobile robots has been limited to a few and isolated applications like lawn mowing, surveillance, agricultural production and military applications. The research is now progressing towards autonomous robots which will be able to assist us in our daily life. One of the enabling technologies is navigation, and navigation is the subject of this thesis. Navigation of an autonomous robot is concerned with the ability of the robot to direct itself from the current position to a desired destination. This thesis presents and experimentally validates solutions for road classification, obstacle avoidance and mission execution. The road classification is based on laser scanner measurements and supported at longer ranges by vision. The road classification is sufficiently sensitive to separate the road from flat roadsides, and to distinguish asphalt roads from gravelled roads. The vision-based road detection uses a combination of chromaticity and edge detection to outline the traversable part of the road based on a laser scanner classified sample area. The perception of these two sensors are utilised by a path planner to allow a number of drive modes, and especially the ability to follow road edges are investigated. The navigation mission is controlled by a script language. The navigation script controls route sequencing, junction detection, junction crossing calculations and drive mode selection. The entire system is tested on a combination of narrow asphalt and gravelled roads connected by a number of junctions. Missions of up to 3km in length have been successfully completed using the described system. The main focus of the thesis has been the experimental validation of the implemented solutions and the ability of the methods to solve real world problems. The amount of software needed by an autonomous robot can be overwhelming. Software reuse and distributed development are therefore important issues. The thesis describes a new component architecture for robotics software that promotes software reuse and distributed development and maintenance.

Andersen, Jens Christian

2007-01-01

218

Professional mobile application development  

CERN Multimedia

Create applications for all major smartphone platforms Creating applications for the myriad versions and varieties of mobile phone platforms on the market can be daunting to even the most seasoned developer. This authoritative guide is written in such as way that it takes your existing skills and experience and uses that background as a solid foundation for developing applications that cross over between platforms, thereby freeing you from having to learn a new platform from scratch each time. Concise explanations walk you through the tools and patterns for developing for all the mobile platfo

McWherter, Jeff

2012-01-01

219

Mobile phones and driving.  

Science.gov (United States)

Prior to the introduction of legislation in the United Kingdom, observational road-side studies showed that approximately 2 per cent of drivers use a mobile phone while driving. We studied the change in the usage rate of hand-held mobile phones from 10 weeks before to 10 weeks after the legislation came into force in December 2003. Across three different sites during the evening rush-hour, the usage rate changed from 1.85 to 0.97 per cent, a reduction of almost half. This change is attributed to the legislation. The effect of the legislation on accident and injury rates is unknown. PMID:15637105

Johal, Sandeep; Napier, Fiona; Britt-Compton, Jenny; Marshall, Tim

2005-03-01

220

Mobile Tracking Application  

Directory of Open Access Journals (Sweden)

Full Text Available Personal Tracking Systems are the tracking devices specially built up for personal information. The person takes it with him and the information of where he is presently is provided. The same system has been implemented in this mobile tracking application i.eTrackMeApp but various extended features that the existing system does not have. This system is GPS enabled android mobile phone whose location is tracked. Our application provides the functionality of defining the geo-fence areas as safe, risky and highly risky.

RADHIKA KINAGE

2013-03-01

 
 
 
 
221

Capital mobility. An overview  

Directory of Open Access Journals (Sweden)

Full Text Available The article analyses the problem of international capital mobility which the Asian crisis has highlighted. It points out that the problem of capital mobility ("hot money" panics has a long history, but globalization, the opening up of national economies and technological advance have increased the risks. The article discusses four policy debated which are being pursued in the large Asian crisis literature: (i the pros and cons of capital controls; (ii the choice of exchange rate regime; (iii financial factor reform; and (iv the rule of law.

H. W. Arndt

2000-09-01

222

Mobile network maintenance (GSM)  

CERN Document Server

Maintenance work will be carried out on the CERN mobile network infrastructure (GSM) on the 23 and 24 July from 6 p.m. to 6 a.m. in order to replace discontinued equipment and to increase the bandwidth capacity of the GSM mobile network. All CERN GSM emitters (40 units) will be moved one by one to the new infrastructure during the maintenance. The call of a user connected to an emitter at the time of its maintenance will be cut off. However, the general overlapping of the GSM radio coverage should mean that users are able immediately to call again should their call be interrupted. IT/CS/CS

IT Department

2009-01-01

223

A Hierarchical Mobile IPv6 Proposal  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The IETF Mobile IPv6 protocol has been developped to manage global (macro) mobility. It is not adapted to local (micro) mobility since it does not support any kind of hierarchy. This report presents a hierarchical protocol, built on top of Mobile IPv6, that separates local mobility (within a site) from global mobility (across sites)management. Local handoffs are managed locally and transparently to a mobile node'correspondent hosts while global mobility is managed with Mobile IPv6. Our scheme...

Castelluccia, Claude

1998-01-01

224

Distributed Mobility Management Scheme for Mobile IPv6  

Science.gov (United States)

Mobile IPv6 and Network Mobility (NEMO) have been standardized as IP extensions. While these technologies are planned to be adopted by several communities, such as the vehicle, aviation, and cellular industries, Mobile IPv6 has serious deployment issues such as scalability, protocol resilience, and redundancy. In these technologies, a special router called a home agent is introduced to support the movement of mobile nodes. This home agent introduces overlapping, inefficient routes, and becomes a single point of failure and a performance bottleneck. In this paper, a new concept for scalable and dependable mobility management scheme is proposed. Multiple home agents serve the same set of mobile nodes. The Home Agent Reliability protocol and Home Agent migration are introduced to achieve this concept. We also propose an overlay network named a Global Mobile eXchange (GMX) that efficiently handles data traffic from and to mobile nodes, and operates home agents as would an Internet eXchange Point (IXP).

Wakikawa, Ryuji; Valadon, Guillaume; Shigechika, Noriyuki; Murai, Jun

225

Mobility Prediction Based Neighborhood Discovery in Mobile Ad Hoc Networks.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Hello protocol is the basic technique for neighborhood discovery in wireless ad hoc networks. It requires nodes to claim their existence/ aliveness by periodic 'hello' messages. Central to a hello protocol is the determination of 'hello' message transmission rate. No fixed optimal rate exists in the presence of node mobility. The rate should in fact adapt to it, high for high mobility and low for low mobility. In this paper, we propose a novel mobility prediction based hello protocol, named A...

Li, Xu; Mitton, Nathalie; Simplot-ryl, David

2011-01-01

226

Mobility Prediction Based Neighborhood Discovery for Mobile Ad Hoc Networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Hello protocol is the basic technique for neighborhood discovery in wireless ad hoc networks. It requires nodes to claim their existence/aliveness by periodic `hello' messages. Central to any hello protocol is the determination of `hello' message transmission rate. No fixed optimal rate exists in the presence of node mobility. The rate should in fact adapt to it, high for high mobility and low for low mobility. In this paper, we propose a novel mobility prediction based hello protocol, named ...

Li, Xu; Mitton, Nathalie; Simplot-ryl, David

2010-01-01

227

Environmental sampling  

Energy Technology Data Exchange (ETDEWEB)

Environmental Sampling (ES) is a technology option that can have application in transparency in nuclear nonproliferation. The basic process is to take a sample from the environment, e.g., soil, water, vegetation, or dust and debris from a surface, and through very careful sample preparation and analysis, determine the types, elemental concentration, and isotopic composition of actinides in the sample. The sample is prepared and the analysis performed in a clean chemistry laboratory (CCL). This ES capability is part of the IAEA Strengthened Safeguards System. Such a Laboratory is planned to be built by JAERI at Tokai and will give Japan an intrinsic ES capability. This paper presents options for the use of ES as a transparency measure for nuclear nonproliferation.

Puckett, J.M.

1998-12-31

228

Mobile Lifting Jack.  

Science.gov (United States)

A mobile jack, particularly for use in installation of support beams in underground mines, is disclosed. The jack comprises a wheel-mounted frame and a hydraulic lifting arm having a jack head which is horizontally rotatable 360 deg. The lifting arm is al...

R. L. Unger T. G. Bobick

1987-01-01

229

Waves and mobile phones  

International Nuclear Information System (INIS)

This article reports the methodology used to assess the exposure to radio-frequency of the population. The main radio-frequency emitters are transmitting antennas, mobile phones, Wi-Fi systems, cord-less home phones, and micro-wave ovens. We have to know that the level of exposure is very different depending on the device, for instance a 10 minutes long use of a mobile phone with a DAS (specific absorption dose rate) of 0.04 W/kg is equivalent to a 15 day long exposure to a transmitting antenna at a spot where the field is 0.6 V/m. It appears that for transmitting antennas the exposure levels of the population are always very low and far below the protection standards. As for mobile phones, today's results can not exclude a risk for people having used a phone for more than 10 years. Experts recommend for children a restraint use of mobile phones and for adults to keep a safety distance of a few tens of centimeters between the speaker and his phone. The passage to the new UMTS-3G standard will be favourable. (A.C.)

2011-03-01

230

Developing Mobile Based Instruction  

Science.gov (United States)

This paper describes an instructional design class's experience developing instruction for the mobile web. The class was taught at a southeastern university in the United States in a master's level computer based instruction course. Two example projects are showcased and student reflections on design issues are highlighted. Additionally,…

Martin, Florence; Pastore, Raymond; Snider, Jean

2012-01-01

231

Mobil lube dewaxing technologies  

Energy Technology Data Exchange (ETDEWEB)

Currently, the lube refining industry is in a period of transition, with both hydroprocessing and catalytic dewaxing gathering momentum as replacements for solvent extraction and solvent dewaxing. In addition, lube product quality requirements have been increasing, both in the US and abroad. Mobil has developed a broad array of dewaxing catalytic technologies which can serve refiners throughout the stages of this transition. In the future, lube feedstocks which vary in source and wax content will become increasingly important, requiring an optimized system for highest performance. The Mobil Lube Dewaxing (MLDW) process is the work-horse of the catalytic dewaxing technologies, being a robust, low cost technology suitable for both solvent extracted and hydrocracked feeds. The Mobil Selective Dewaxing (MSDW) process has been recently introduced in response to the growth of hydroprocessing. MSDW requires either severely hydrotreated or hydrocracked feeds and provides improved lube yields and VI. For refiners with hydrocrackers and solvent dewaxing units, Mobil Wax Isomerization (MWI) technology can make higher VI base stocks to meet the growing demand for very high quality lube products. A review of these three technologies is presented in this paper.

Baker, C.L.; McGuiness, M.P. [Mobil Research and Development Corp., Paulsboro, NJ (United States)

1995-09-01

232

Mobil - Business Report 1979.  

Science.gov (United States)

In the annual report 1979 the MOBIL OIL A.G., Germany, the development of the prices, exploration and production of petroleum and natural gas, the reinvestments, calculation of the net value added, and the benefits granted to the employees are shown in gr...

1980-01-01

233

Mobile Learning for All  

Science.gov (United States)

Parents and educational professionals are asking the question, "Are schools preparing students for their future lives?" Mobile technologies such as smart phones, iPods, GPS systems, iPads, and a constant stream of information drive much of people's world and work. The use of such technologies increases with each passing day. But how often do…

Bestwick, Angel; Campbell, John R.

2010-01-01

234

Mobile antenna systems handbook  

CERN Document Server

This ultimate one-stop reference is designed to save you a mountain of work. You get hands-on expertise for every type of mobile antenna base station and terminal system, including its theory of operation, application strengths and weaknesses, performance characteristics, design procedures, analysis techniques, and optimization methods, complete with examples and worked-out calculations at every step.

Fujimoto, Kyohei

2008-01-01

235

IDPs and mobile livelihoods  

Directory of Open Access Journals (Sweden)

Full Text Available A recent research project has examined the relationsbetween internal displacement and migration in thePeruvian Andes in the second half of the 20th centuryand the difference that the introduction of the IDPconcept has meant for understanding mobile populations.

Finn Stepputat

2002-07-01

236

The IPA Mobility Program.  

Science.gov (United States)

The Intergovernmental Personnel Act of 1970 Mobility Program and the procedure for applying for one of the temporary positions offered by the program are discussed. It is suggested that faculty members and university administrators are strong candidates for these positions in public policy development and government research. (SF)

Ershkowitz, Miriam

1979-01-01

237

Mobile lighting apparatus  

Energy Technology Data Exchange (ETDEWEB)

A mobile lighting apparatus includes a portable frame such as a moveable trailer or skid having a light tower thereon. The light tower is moveable from a stowed position to a deployed position. A hydrogen-powered fuel cell is located on the portable frame to provide electrical power to an array of the energy efficient lights located on the light tower.

Roe, George Michael; Klebanoff, Leonard Elliott; Rea, Gerald W; Drake, Robert A; Johnson, Terry A; Wingert, Steven John; Damberger, Thomas A; Skradski, Thomas J; Radley, Christopher James; Oros, James M; Schuttinger, Paul G; Grupp, David J; Prey, Stephen Carl

2013-05-14

238

Mobile Communication Via Satellite  

Science.gov (United States)

System mixes real-time and delayed-transmission channels. Combination of L-band and SHF links connect fixed and mobile equipment on ground to satellite relay. Software and hardware architecture conforms structure of open-system-interconnection model suggested by International Standards Organization.

Yan, Tsun-Yee; Naderi, Firouz M.

1988-01-01

239

Security of mobile communications  

CERN Multimedia

Covers the complex security issues that face the mobile communications industry. This book discusses hacking and infecting with viruses; techniques used to provide access control, authentication, and authorization; the security of SIM-like cards; and, standards implemented by the GSM, third generation, WLAN, and ad-hoc networks.

Boudriga, Noureddine

2009-01-01

240

Mobile messaging: emergency image transfer.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This is the first reported integration of picture archiving and communications systems (PACS) with general packet radio services (GPRS)-compliant mobile telephones allowing digital image transmission using multimedia messaging service (MMS) technology for mobile telementoring (advice and teaching).

Wallace, C. G.; Gibson, J. N. A.

2004-01-01

 
 
 
 
241

Privacy issues in mobile advertising  

DEFF Research Database (Denmark)

The emergence of the wired Internet and mobile telecommunication networks is creating new opportunities for advertisers to generate new revenue streams through mobile users. As consumer adoption of mobile technology continues to increase, it is only a question of time when mobile advertising becomes an important part of marketing strategies. The development of mobile advertising, however, will be dependent on acceptance and usability issues in order to ensure permission-based advertising. Growing concerns about the protection of the users' privacy have been raised since mobile advertising may become extremely intrusive practices in an intimate personal space. This article focuses on the evaluation of legal problems raised by this novel form of advertising. It is assumed that a technological design, which is in line with the legal framework, will ensure that the benefits of mobile advertising and the consumer willingness to accept mobile advertising will increase.

Cleff, Evelyne Beatrix

242

Land Mobile Satellite Data System.  

Science.gov (United States)

The Telesat Mobile Incorporated (TMI) Mobile Data System (MDS) was developed to apply satellite technology to the transportation industry's requirement for a fleet management system. It will provide two-way messaging and automatic position reporting capab...

J. D. B. Kent

1990-01-01

243

Mobility Models in Adhoc Networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In Ad-hoc wireless networks, mobility management faces many challenges. Mobility of the nodes causes the network topology to change. The routing protocols must dynamically re-adjust to these changes in order to keep the accurate routes. Therefore, the routing updates traffic overhead is very much high. Generally, different types of mobility patterns have different impact on the network protocols or applications. Thus, the network performance is strongly affected by the nature of mobility patt...

Sandeep Kaur Gill

2012-01-01

244

Telemedicine Based on Mobile Devices and Mobile Cloud Computing  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile devices such as smartphones and tablets support kinds of mobile computing and services. They can access to the cloud or offload the computation-intensive part to the cloud computing resources. Mobile cloud computing (MCC integrates the cloud computing into the mobile environment, which extends mobile devices’ battery lifetime, improves their data storage capacity and processing power, and improves their reliability and information security. In this paper, the applications of smartphones in telemedicine and MCC-based telemedicine were presented. Issues on the information security of smartphones and tablets, challenges of smartphones in telemedicine and challenges of MCC-based telemedicine were also introduced.

Lidong Wang

2014-04-01

245

Webshop Optimization for Mobile Devices  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This thesis deals with the programming technology which can be used to optimize the webshop design for mobile devices. The purpose of this thesis is to demonstrate several possible solutions when doing implementation of webshop applications for mobile devices. web application developers and companies who wants to optimize their products for mobile devices could also benefit from this study.

Mei, Long

2009-01-01

246

Fade-Free Mobile Communication  

Science.gov (United States)

Scheme for mobile communication reduces multipath fading and interference between adjacent channels. Proposed communication system lends itself to almost completely digital implementation, eliminating costly and bulky crystal filters. Scheme suitable for satellite-aided or terrestrial mobile communication, including cellular mobile telephony, at frequencies in 150-to-900-MHz range.

Stevenson, C. R.

1986-01-01

247

Spectral Fingerprinting on a Standard Mobile Phone  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Spectral fingerprinting of chemical indicators, using computer screens as light sources and web cameras as imaging detectors, is an emerging approach for chemical sensing with the potential to coexist in common consumer electronic devices.The migration of this technique to mobile phones is key to extend this sensing approach to the most ubiquitous and familiar type of instrumentation. Here, we investigate the feasibility and performance of spectral fingerprinting on reference samples using a ...

2010-01-01

248

Temporary help agencies and occupational mobility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper focuses upon the effect of Temporary Help Agencies (THAs) on occupational mobility through a comparison of the job-to-job upgrading chances of THA and non-THA workers. A screening approach to the role of these labor "brokers" suggests that agency workers can expect greater upgrading chances between two different occupations. Results obtained from a sample of Spanish workers show that working through these intermediaries allows workers in intermediate occupational levels to avoid oc...

Garci?a-pe?rez, J. Ignacio; Mun?oz-bullo?n, Fernando

2003-01-01

249

Coal Sampling  

Science.gov (United States)

This USGS publication explains the use of fluxes for preparation of coal for elemental analysis. The material would be useful to supplement textbooks concerning sample preparation and may be helpful in designing an XRF laboratory experiment.

Golightly, D. W.; Simon, Frederick Otto, 1939-

2011-03-29

250

Sampling innovations  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Sampling theory has prospered extensively in the last century. The elegant mathematics and the vast number of applications are the reasons for its popularity. The applications involved in this thesis are in signal processing and communications and call out to mathematical notions in Fourier theory, spectral analysis, basic linear algebra, spline and wavelet theory. This thesis is divided in two parts. Chapters 2 and 3 consider uniform sampling of non-bandlimited signals and Chapters 4, 5, and...

Marziliano, Pina

2002-01-01

251

Mobile Multicast in Hierarchical Proxy Mobile IPV6  

Science.gov (United States)

Mobile Internet Protocol Version 6 (MIPv6) environments have been developing very rapidly. Many challenges arise with the fast progress of MIPv6 technologies and its environment. Therefore the importance of improving the existing architecture and operations increases. One of the many challenges which need to be addressed is the need for performance improvement to support mobile multicast. Numerous approaches have been proposed to improve mobile multicast performance. This includes Context Transfer Protocol (CXTP), Hierarchical Mobile IPv6 (HMIPv6), Fast Mobile IPv6 (FMIPv6) and Proxy Mobile IPv6 (PMIPv6). This document describes multicast context transfer in hierarchical proxy mobile IPv6 (H-PMIPv6) to provide better multicasting performance in PMIPv6 domain.

Hafizah Mohd Aman, Azana; Hashim, Aisha Hassan A.; Mustafa, Amin; Abdullah, Khaizuran

2013-12-01

252

Mobility-Based Mobile Relay Selection in MANETs  

Science.gov (United States)

The future wireless mobile communication networks are expected to provide seamless wireless access and data exchange to mobile users. In particular, it is expected that the demand for ubiquitous data exchange between mobile users will increase with the widespread use of various wireless applications of the intelligent transportation system (ITS) and intelligent vehicles. Mobile ad hoc networks (MANETs) are one of the representative research areas pursuing the technology needed to satisfy the increasing mobile communication requirements. However, most of the works on MANET systems do not take into account the continuous and dynamic changes of nodal mobility to accommodate system design and performance evaluation. The mobility of nodes limits the reliability of communication between the source and the destination node since a link between two continuously moving nodes is established only when one node enters the transmission range of the other. To alleviate this problem, mobile relay has been studied. In particular, it is shown that relay selection is an efficient way to support nodal mobility in MANET systems. In this paper, we propose a mobility-based relay selection algorithm for the MANET environment. Firstly, we define the lifetime as the maximum link duration for which the link between two nodes remains active. Therefore, the lifetime indicates the reliability of the relay link which measures its capability to successfully support relayed communication when requested by the source node. Furthermore, we consider a series of realistic scenarios according to the randomness of nodal mobility. Thus, the proposed algorithm can be easily applied in practical MANET systems by choosing the appropriate node mobility behavior. The numerical results show that the improved reliability of the proposed algorithm's relayed communication is achieved with a proper number of mobile relay nodes rather than with the conventional selection algorithm. Lastly, we show that random mobility of the individual nodes enhances reliability of the network in a sparse network environment.

Kim, Gilnam; Lee, Hyoungjoo; Lee, Kwang Bok

253

Design and Evaluation of Mobile-to-Mobile Multimedia Streaming using REST-based Mobile Services  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Today, it has become conveniently possible to host Web Services (WS) on mobile node using a Mobile Web Server (MWS). To address a vast range of use cases, these hosted mobileWS may be implemented to offer synchronous and asynchronous execution styles depending upon the requirements of mobile application. Thus, the MWS actually provides the necessary architectural capabilities to handle and process incoming requests for each class of service. But, it is very vital for these servers to simplify...

Chaudry Aamer, Sattar

2011-01-01

254

Microbiological flora of mobile phones of resident doctors  

Directory of Open Access Journals (Sweden)

Full Text Available Background: Many studies revealed that devices like stethoscope, mobile phones can act as an important source of microbes capable of causing nosocomial infections. Hence there is need of defining their role in spreading infection, so that we can take some preventive measures against it. Aims: To screen the mobile phones of resident doctors and perform microbeological study of the organisms isolated. Setting: Resident doctors working at Tertiary Care Hospital. Methods: Swabs of 50 mobile phones of resident doctors were taken by sterile cotton swab and inoculated on Blood agar, MacConkey agar, Sabaraud’s dextrose agar. Isolated organisms were processed according to standard protocol. Results: Swabs of mobile phones of 50 resident doctors were analyzed for presence of micro-organisms. Out of the 50 samples, 30 (60% were contaminated with micro-organisms. 32 micro-organisms were isolated from 50 mobile phones as shown in table 3. Among 32 isolates, Coagulase negative Staphylococci 23 (71.87% was the dominant organism followed by Diphtheroids 7 (21.87%, Aspergillus niger 2 (6.25%. Also proportion of contamination of mobile phones of male resident doctors was more than female resident doctors. Conclusion: Mobile phones may act as a potential source of micro-organisms and spread nosocomial infections. Hence proper infection control practices like proper hand washing, decontamination of mobiles should be routinely practiced.

Sandeep B. Kokate

2012-11-01

255

Validating general human mobility patterns on massive GPS data  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Are the patterns of car travel dierent from those of general human mobility? Based on a unique dataset consisting of the GPS tra- jectories of 10 million travels accomplished by 150,000 cars in Italy, we investigate how known mobility models apply to car travels, and illus- trate novel analytical ndings. We also assess to what extent the sample in our dataset is representative of the overall car mobility, and discover how to build an extremely accurate model that, given our GPS data, estimate...

Pappalardo, Luca; Rinzivillo, Salvatore; Pedreschi, Dino; Giannotti, Fosca

2013-01-01

256

New approach for measuring the microwave Hall mobility of semiconductors  

International Nuclear Information System (INIS)

Measurement of Hall mobility in semiconductor samples using bimodal cavity method gives distinct advantages due to noncontact nature as well as the provision to measure anisotropic mobility. But the measurement approaches followed till now have a disadvantage of having high error values primarily due to the problem in evaluating the calibration constant of the whole experimental arrangement. This article brings out a new approach that removes such disadvantage and presents the calibration constant with 1% accuracy. The overall error in the carrier mobility values is within 5%

2006-06-01

257

Mobile Biomass Pelletizing System  

Energy Technology Data Exchange (ETDEWEB)

This grant project examines multiple aspects of the pelletizing process to determine the feasibility of pelletizing biomass using a mobile form factor system. These aspects are: the automatic adjustment of the die height in a rotary-style pellet mill, the construction of the die head to allow the use of ceramic materials for extreme wear, integrating a heat exchanger network into the entire process from drying to cooling, the use of superheated steam for adjusting the moisture content to optimum, the economics of using diesel power to operate the system; a break-even analysis of estimated fixed operating costs vs. tons per hour capacity. Initial development work has created a viable mechanical model. The overall analysis of this model suggests that pelletizing can be economically done using a mobile platform.

Thomas Mason

2009-04-16

258

Indigenization of Urban Mobility  

CERN Document Server

Uncovering urban mobility patterns is crucial for further predicting and controlling spatially embedded events. In this article, we analyze millions of geographical check-ins crawled from a Chinese leading location-based social networking service, Jiepang.com, which contains demographical information and thus allows the group-specific studies. We found distinguishable mobility patterns of natives and non-natives in all five large cities under consideration, and by assigning different algorithms onto natives and non-natives, the accuracy of location prediction can be largely improved compared with pure algorithms. We further propose the so-called indigenization coefficients to quantify to which extent an individual behaves like a native, which depend only on check-in behaviors, instead of any demographical information. To our surprise, a hybrid algorithm weighted by the indigenization coefficients outperforms the mixed algorithm accounting for additional demographical information.

Yang, Zimo; Xie, Xing; Lian, Defu; Rui, Yong; Zhou, Tao

2014-01-01

259

Mobile nuclear power systems  

International Nuclear Information System (INIS)

This report is meant to present a general survey of the mobile nuclear power systems and not a detailed review of their technical accomplishments. It is based in published material mainly up to 1987. Mobile nuclear power systems are of two fundamentally different kinds: nuclear reactors and isotopic generators. In the reactors the energy comes from nuclear fission and in the isotopic generators from the radioactive decay of suitable isotopes. The reactors are primarily used as power sourves on board nuclear submarines and other warships but have also been used in the space and in remote places. Their thermal power has ranged from 30 kWth (in a satellite) to 175 MWth (on board an aircraft carrier). Isotopic generators are suitable only for small power demands and have been used on board satellites and spaceprobes, automatic weatherstations, lighthouses and marine installations for navigation and observation. (author)

1988-01-01

260

Seed storage oil mobilization.  

Science.gov (United States)

Storage oil mobilization starts with the onset of seed germination. Oil bodies packed with triacylglycerol (TAG) exist in close proximity with glyoxysomes, the single membrane-bound organelles that house most of the biochemical machinery required to convert fatty acids derived from TAG to 4-carbon compounds. The 4-carbon compounds in turn are converted to soluble sugars that are used to fuel seedling growth. Biochemical analysis over the last 50 years has identified the main pathways involved in this process, including beta-oxidation, the glyoxylate cycle, and gluconeogenesis. In the last few years molecular genetic dissection of the overall process in the model oilseed species Arabidopsis has provided new insight into its complexity, particularly with respect to the specific role played by individual enzymatic steps and the subcellular compartmentalization of the glyoxylate cycle. Both abscisic acid (ABA) and sugars inhibit storage oil mobilization and a substantial degree of the control appears to operate at the transcriptional level. PMID:18444898

Graham, Ian A

2008-01-01

 
 
 
 
261

Mobility of salt caverns  

International Nuclear Information System (INIS)

Within the framework of the study on underground storage of radioactive and chemical wastes (OPLA) in the Netherlands it is important to determine the mobility of salt caverns, appropriate for storage of these wastes. The mobility effects can be notified in the form of faults or other deformations, which effect the water economy around a salt cavern and with that the stability of the salt cavern itself. In the Dutch provinces Groningen and Drenthe a large number of ruptured salt caverns can be found. It is known that a part of these diapirs are 500 meter or less under the surface. By analysis of satellite images an analysis is made of lineaments in the investigated area. 3 figs., 3 refs

1992-01-01

262

Editorial: Mobile (March 2010)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Open source software and hardware has become an accepted way of developing new and interesting applications in many information and communication technology domains: operating systems, databases, Web infrastructure, and applications. It's not surprising that with the increasing popularity of mobile handheld devices, users and researchers have explored the power of open approaches to providing innovative new applications and services in this domain. However, unlike personal computers and the I...

Dru Lavigne; Thomas Kunz; François Lefebvre

2010-01-01

263

Mobile Phone Faraday Cage  

CERN Document Server

A Faraday cage is an interesting physics phenomena where an electromagnetic wave can be excluded from a volume of space by enclosure with an electrically conducting material. The practical application of this in the classroom is to block the signal to a mobile phone by enclosing it in a metal can! The background of the physics behind this is described in some detail followed by a explanation of some demonstrations and experiments which I have used.

French, M M J

2011-01-01

264

Adaptive Mobile Traffic Offloading  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Cellular operators count on the potential of offloading techniques to relieve their overloaded radio access networks. In this paper, we propose, design, and evaluate a re-injection strategy to finely control the opportunistic distribution of popular contents throughout a hybrid mobile network. The idea is to use the infrastructure resources as seldom as possible. Unlike existing techniques that bind re-injection to statically defined objective functions, our proposal adapts to the current net...

2014-01-01

265

Mobile Music Listening Practices  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This poster presents my PhD research about the appropriation of the practice of mobile music listening. Following an exploratory phase, I have described and interpreted some of the salient characteristics of that practice. It broadly shows that it is an automatic, background, unfocused listening used as an accompaniment to another activity. The music is therefore functional: it helps to relax, change mood, block unwanted sounds (or people), make non-places (Augé, 1992) more pleasant. This ba...

2013-01-01

266

Mobile analysis systems  

International Nuclear Information System (INIS)

In a project funded by the Federal Minister for Research and Technology (BMFT), a mobile monitoring system (all-terrain vehicle with GC/MS spectrometer, on-board computer imcluding user software, and power supply system) was employed for chemical-analytical monitoring and evaluation of organic contaminations in suspected pollution sites in the urban agglomeration of Leipzig with the aim to establish an emission cadastre. (orig./BBR)

1993-08-01

267

Teleoperation of mobile robots  

Scientific Electronic Library Online (English)

Full Text Available SciELO Argentina | Language: English Abstract in english This paper proposes a stable control structure for bilateral teleoperation of mobile robots. The proposed control structure includes a time-delay compensation placed on both the local and remote sites of the teleoperation system. Teleoperation experiments through a simulated and real (using Internet [...] ) communication channel are presented to illustrate the performance and stability of the proposed control structure.

E., Slawiński; V., Mut; J. F., Postigo.

268

Mobile Project Management  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Based on the development of new communication and data transfer technologies, the mobile solutions for the management process have been able to provide new ways to conduct management actions. This environment describes methods and tools available only here, which will bring information, speed and efficiency to any stage and component of the management process. The paper takes into discussion the impact of the technological development on the management process paradigm. The paper presents the...

Boja, Catalin; Popa, Marius

2006-01-01

269

New NOK mobile exhibition  

International Nuclear Information System (INIS)

By means of 20 visual aids, the NOK mobile exhibition aims to illustrate how the NOK satisfies the power requirements of two million people in nine cantons. Of particular interest are the graphs of daily and annual consumption. Examples of the exhibits are a flow model which at the touch of a button demonstrates to the visitor how a pumped-storage or nuclear power station operates, and a model of power transmission. (R.S.)

1983-03-19

270

Minimum Metallic Mobility in a Two-Dimensional Electron Gas  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We report the observation of a metal-insulator transition in a two-dimensional electron gas in silicon. By applying substrate bias, we have varied the mobility of our samples, and observed the creation of the metallic phase when the mobility was high enough ($\\mu ~> 1 m^2/Vs$), consistent with the assertion that this transition is driven by electron-electron interactions. In a perpendicular magnetic field, the magnetoconductance is positive in the vicinity of the transition,...

Popovic, Dragana; Fowler, A. B.; Washburn, S.

1997-01-01

271

Predictive FTF Adaptive Algorithm for Mobile Channels Estimation  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The aim of this research paper is to improve the performance of Fast Transversal Filter (FTF) adaptive algorithm used for mobile channel estimation. A multi-ray Jakes mobile channel model with a Doppler frequency shift is used in the simulation. The channel estimator obtains the sampled channel impulse response (SIR) from the predetermined training sequence. The FTF is a computationally efficient implementation of the recursive least squares (RLS) algorithm of the conventional Kalman filter. ...

Qassim Nasir

2012-01-01

272

Mobile Probing and Probes  

DEFF Research Database (Denmark)

Mobile probing is a method, developed for learning about digital work situations, as an approach to discover new grounds. The method can be used when there is a need to know more about users and their work with certain tasks, but where users at the same time are distributed (in time and space). Mobile probing was inspired by the cultural probe method, and was influenced by qualitative interview and inquiry approaches. The method has been used in two subsequent projects, involving school children (young adults at 15-17 years old) and employees (adults) in a consultancy company. Findings point to mobile probing being a flexible method for uncovering the unknowns, as a way of getting rich data to the analysis and design phases. On the other hand it is difficult to engage users to give in depth explanations, which seem easier in synchronous dialogs (whether online or face2face). The development of the method, its application to the two projects, and the challenges and potentials which were found are discussed in this paper.

Duvaa, Uffe; Ă?rngreen, Rikke

2013-01-01

273

Mobile 3D tomograph  

International Nuclear Information System (INIS)

Mobile tomographs often have the problem that high spatial resolution is impossible owing to the position or setup of the tomograph. While the tree tomograph developed by Messrs. Isotopenforschung Dr. Sauerwein GmbH worked well in practice, it is no longer used as the spatial resolution and measuring time are insufficient for many modern applications. The paper shows that the mechanical base of the method is sufficient for 3D CT measurements with modern detectors and X-ray tubes. CT measurements with very good statistics take less than 10 min. This means that mobile systems can be used, e.g. in examinations of non-transportable cultural objects or monuments. Enhancement of the spatial resolution of mobile tomographs capable of measuring in any position is made difficult by the fact that the tomograph has moving parts and will therefore have weight shifts. With the aid of tomographies whose spatial resolution is far higher than the mechanical accuracy, a correction method is presented for direct integration of the Feldkamp algorithm

2008-04-28

274

Utopias of Mobilities  

DEFF Research Database (Denmark)

Contemporary global challenges to the distribution and organization of mobilities require new ways of envisioning and imagining to bring forward the discussion about new visions and thus policies of future mobilities. This chapter explores the imaginary visioning by using earlier utopian thoughts and visions as â??prismsâ?? for the contemporary mobility debate in order to get closer to new imaginaries of technologies, complex systems and cultural change. The chapter is structured in five parts. After the introduction, part two discusses utopian and critical perspectives within urbanism in order to establish the intellectual current of â??alternative thinkingâ??. In part three we return to the 1950â??s and 1960â??s stream of what might be termed â??Techno utopian urbanismâ??. From the works of Archigram and the Situationist movement in particular a perspective on the utopian imaginary is re-launched. However in order to discuss the situation of contemporary and actual proposals for urban transformation the paper in part four explore the potential to fuelling this discussion by looking at the Danish architectural company BIG. BIG is discussed from its potential as aâ??wild contemporaryâ?? shaking, stirring and stimulating the utopian stream of urban imaginary. The chapter ends in part five with some concluding reflections.

Jensen, Ole B.; Freudendal-Pedersen, Malene

2012-01-01

275

Lazy Mobile Intruders  

DEFF Research Database (Denmark)

We present a new technique for analyzing platforms that execute potentially malicious code, such as web-browsers, mobile phones, or virtualized infrastructures. Rather than analyzing given code, we ask what code an intruder could create to break a security goal of the platform. To avoid searching the infinite space of programs that the intruder could come up with (given some initial knowledge) we adapt the lazy intruder technique from protocol verification: the code is initially just a process variable that is getting instantiated in a demand-driven way during its execution. We also take into account that by communication, the malicious code can learn new information that it can use in subsequent operations, or that we may have several pieces of malicious code that can exchange information if they â??meetâ?ť. To formalize both the platform and the malicious code we use the mobile ambient calculus, since it provides a small, abstract formalism that models the essence of mobile code. We provide a decision procedurefor security against arbitrary intruder processes when the honest processes can only perform a bounded number of steps and without path constraints in communication. We show that this problem is NP-complete.

Mödersheim, Sebastian Alexander; Nielson, Flemming

2013-01-01

276

Using USB Keys to Promote Mobile Learning  

Directory of Open Access Journals (Sweden)

Full Text Available M-learning (i.e. mobile learning is a field of e-learning that provides learners learning environments using mobile technology. In this context, learning can take place anywhere and anytime, in open and distance learning. Depending on the type of technology it may be done through software called nomadic (i.e. prepared to mobility. Among these technologies, there are those composed of digital interfaces and with autonomy of treatment: Smartphone, PDA, calculator and even mp3 key. In this article we propose to take into account storage devices as mobile technologies. Our focus was on the USB key. We present a procedure to test whether a learning environment embarked on a USB key can be described as nomadic or not. This procedure has been tested on a sample of three ILE (Interactive Learning Environment. This approach has allowed us to define criteria of nomadism, criteria which were then included in the design of a synchronous Weblog on USB key.

Marilyne Rosselle

2009-07-01

277

Mobile Robots for Hospital Logistics  

DEFF Research Database (Denmark)

Hospitals are complex and dynamic organisms that are vital to the well-being of societies. Providing good quality healthcare is the ultimate goal of a hospital, and it is what most of us are only concerned with. A hospital, on the other hand, has to orchestrate a great deal of supplementary services to maintain the quality of healthcare provided. Logistics is the most resource demanding service in a hospital. The scale of the transportation tasks is huge and the material flow in a hospital is comparable to that of a factory. We believe that these transportation tasks, to a great extent, can be and will be automated using mobile robots. This talk consequently addresses the key technical issues of implementing service robots in hospitals. In simple terms, a robotic system for automating hospital logistics has to be reliable, adaptable and scalable. Robots have to be semi-autonomous, and should reliably navigate in large and dynamic environments in the hospital. The complexity of the problem has to be manageable, and the solutions have to be flexible, so that the system can be applicable in real world settings. This talk summarizes the efforts to address these issues. Upon the analysis of the transportation tasks and how they are currently handled in hospitals, a navigation system is envisaged. The concept of hybrid mapping is at the core of the solution, making it possible to efficiently represent the environment. Topological nodes greatly improve planning capabilities, and create a redundant layer for localization. The system features automatic annotation, which significantly reduces manual work and offer many advantages beyond robotics. A case study on logistics solutions is finally presented. A robotic solution is tested in a hospital to handle the transportation of blood samples between the clinic and the lab. Without any environmental modification; it is shown that lab turnover time can be reduced from hours to minutes; by simply replacing the human porter with a mobile robot.

Ă?zkil, Ali GĂĽrcan

278

Work Samples.  

Science.gov (United States)

Three work sample tasks--a logical contouring problem, a "pull-up" from an aerial photograph, and a geometric restitution task--for use in predicting job performance of the Cartographic Technician are provided. (For related documents, see TM 001 408, 463, 465, 466.) (DB)

Educational Testing Service, Princeton, NJ.

279

Mobile Governance - An Indian Perspective  

Directory of Open Access Journals (Sweden)

Full Text Available M-Governance is a strategy and its implementation involves the utilization of all kinds of wireless and mobile technology services, applications and devices for improving benefits for citizens, business and all Government units. The rapid diffusion of mobile ICT gadgets such as laptops, mobile phones, PDAs (Personal Digital Assistants, along with emails, instant messaging and other networking services have rapidly fuelled the mobilization of interaction. People, vehicles, air traffic, post and information have become more and more mobile around the world and our society is increasingly being recognized as a nomadic or mobile society. All these clearly indicate the burgeoning public interest in mobility and various issues relating to ‘being mobile.’ Mobility is being regarded as a new paradigm in computing. The mobile revolution will soon outpace the Internet revolution. The new paradigm shift will be marked by mobile, "Always- on" citizens, government, as well as the transient on-line communities.  In order to take the full advantage of the mobile and wireless ICT technology as well as dealing with the fluidity of the interaction with the mobile society and a booming mobile usage rates some  Government has initiated action to set up m-government Services offered by  departments identified for pilot level implementation and to deliver services though mobile phones accessible to the citizens in the field, in the street, at home or other convenient locations on a 24 x 7 basis, rather than the users having to visit Government offices or log on to the Internet portals to access services. Governments in various countries are working on several projects to deliver various services to the public using mobile phones. M-governance’s objective is to make it possible for people of the country to access different kinds of information, and eventually even equip them to effect payments of bills, using their mobile phones. At this scenario the objective of the paper is to explore the potential for m-governance in India, next section throws some light on case studies on m- governance, third section concentrates and policy and regulatory issues pertaining to m-governance in India and finally ends with conclusion.Keywords:  M-Governance: Mobile Governance, ICT: Information and Communication Technologies, Policy Issues.

ponasanapalli sree sudha

2011-08-01

280

Trusted Mobile Client for Document Security in Mobile Office Automation  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile Office Automation is a popular application on the mobile platform. However, the mobile platform has no enough security protection in front of the open system, such as internet. The document security problem in this application has become a hot topic. This paper proposed a new solution to this problem. The solution based on the trusted computing technology, which implements the platform security by hardware. The solution also includes the transparent encryption technology that means application could run independent to the security module and keep the consistency of user experience. The trusted mobile client platform architecture and security functions process of the mobile document protection system are detailed. Related work also been introduced; the security analysis shows the proposed solution could provide well security enhancement for document protection in mobile platform.

Xiaojun Yu

2011-02-01

 
 
 
 
281

Mobile multi-flash photography  

Science.gov (United States)

Multi-flash (MF) photography offers a number of advantages over regular photography including removing the effects of illumination, color and texture as well as highlighting occlusion contours. Implementing MF photography on mobile devices, however, is challenging due to their restricted form factors, limited synchronization capabilities, low computational power and limited interface connectivity. In this paper, we present a novel mobile MF technique that overcomes these limitations and achieves comparable performance as conventional MF. We first construct a mobile flash ring using four LED lights and design a special mobile flash-camera synchronization unit. The mobile device's own flash first triggers the flash ring via an auxiliary photocell. The mobile flashes are then triggered consecutively in sync with the mobile camera's frame rate, to guarantee that each image is captured with only one LED flash on. To process the acquired MF images, we further develop a class of fast mobile image processing techniques for image registration, depth edge extraction, and edge-preserving smoothing. We demonstrate our mobile MF on a number of mobile imaging applications, including occlusion detection, image thumbnailing, image abstraction and object category classification.

Guo, Xinqing; Sun, Jin; Yu, Zhan; Ling, Haibin; Yu, Jingyi

2014-03-01

282

Mobile Advertising : A Case study of Mobile advertising Solutions  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This report has been produced as a result of a Thesis assignment conducted at Ericsson. Itspurpose is to give an overview of the Mobile Advertising industry. In this report an overviewof mobile advertising is presented and thru which channels advertising could be used. Thenthree mobile advertising campaigns are shown and described with background, strategy andresults. The different global markets, the different actors in the value chain and how the onlinebehavior has changed are analyzed. The...

Salim, Ali; Alikhani, Nima

2009-01-01

283

Sampling problems  

Science.gov (United States)

Precipitation estimates from satellites are subject to a number of uncertainties involving design characteristics, satellite positioning, natural variability of precipitation, and the noncontinuous acquisition of data. The sources and sizes of these uncertainties are in need of proper evaluation and estimation. The present sampling and estima-theory seems to be adequate for some measurement problems (e.g., determining precipitation at a point), while others require further theoretical work (e.g., determining the time history of precipitation over large areas).

Flueck, J. A.; Crane, R. F.; Laughlin, C. R.; Bell, T. L.; Meiten, J. G.; Ruprecht, E.; Short, D. R.; Theon, J. S.; Vogel, J. L.

1981-01-01

284

Humanoid Mobile Manipulation Using Controller Refinement  

Science.gov (United States)

An important class of mobile manipulation problems are move-to-grasp problems where a mobile robot must navigate to and pick up an object. One of the distinguishing features of this class of tasks is its coarse-to-fine structure. Near the beginning of the task, the robot can only sense the target object coarsely or indirectly and make gross motion toward the object. However, after the robot has located and approached the object, the robot must finely control its grasping contacts using precise visual and haptic feedback. This paper proposes that move-to-grasp problems are naturally solved by a sequence of controllers that iteratively refines what ultimately becomes the final solution. This paper introduces the notion of a refining sequence of controllers and characterizes this type of solution. The approach is demonstrated in a move-to-grasp task where Robonaut, the NASA/JSC dexterous humanoid, is mounted on a mobile base and navigates to and picks up a geological sample box. In a series of tests, it is shown that a refining sequence of controllers decreases variance in robot configuration relative to the sample box until a successful grasp has been achieved.

Platt, Robert; Burridge, Robert; Diftler, Myron; Graf, Jodi; Goza, Mike; Huber, Eric; Brock, Oliver

2006-01-01

285

System Architecture and Mobility Management for Mobile Immersive Communications  

Directory of Open Access Journals (Sweden)

Full Text Available We propose a system design for delivery of immersive communications to mobile wireless devices based on a distributed proxy model. It is demonstrated that this architecture addresses key technical challenges for the delivery of these services, that is, constraints on link capacity and power consumption in mobile devices. However, additional complexity is introduced with respect to application layer mobility management. The paper proposes three possible methods for updating proxy assignments in response to mobility management and compares the performance of these methods.

Farzad Safaei

2007-02-01

286

Mobile Design Pattern Gallery UI Patterns for Mobile Applications  

CERN Document Server

When you're under pressure to produce a well designed, easy-to-navigate mobile app, there's no time to reinvent the wheel. This concise book provides a handy reference to 70 mobile app design patterns, illustrated by more than 400 screenshots from current iOS, Android, BlackBerry, WebOS, Windows Mobile, and Symbian apps. User experience professional Theresa Neil (Designing Web Interfaces) walks you through design patterns in 10 separate categories, including anti-patterns. Whether you're designing a simple iPhone application or one that's meant to work for every popular mobile OS on the mark

Neil, Theresa

2012-01-01

287

Mobility Divides : â??Stagingâ?? and designing differential mobilities  

DEFF Research Database (Denmark)

Contemporary mobilities are cultural and social manifestations, and the mobile practices in the everyday life of billions of humans are re-configuring senses of place, self, other and relationships to the built environment. The way â??mobile situationsâ?? are staged in designed and built environments are increasingly becoming â??second natureâ?? but also expressions of power, exclusion, and difference. In this talk I will be applying a perspective of â??mobile situationismâ?? illustrating how mobile everyday life practices are staged â??from aboveâ?? in planning and policy frameworks, design codes and architectural designs, but also how the situated and embodied mobile everyday life practices are staged â??from belowâ?? in concrete acts of choice concerning modes of mobilities, ways of moving and interacting. The â??staging mobilitesâ?? framework opens up to an understanding of the meaning of â??mobilities designâ?? in the everyday life and cast light on how design and â??materialities of mobilitesâ?? are creating differential mobilities across societies, social networks, and communities of practices.

Jensen, Ole B.

288

Secure Mobile Trade Agent  

Digital Repository Infrastructure Vision for European Research (DRIVER)

E-commerce on the internet has the ability to produce millions of transactions and a great number of merchants whose supply merchandise over the internet. As a result, it is difficult for entities to roam over every site on the internet and choose the best merchandise to trade. So, in this paper we introduced a mobile trade agent that visit the sites to gather and evaluate the information from merchant servers and decide to trade goods on behalf of the user. We observed that the combination o...

Aqe, Musbah M.; Aboud, Sattar J.; Mohammed AL-Fayoumi

2007-01-01

289

Differential mobility in plasm  

International Nuclear Information System (INIS)

Theoretical considerations about the technique based on differential plasma mobility are made for the analysis of trace amounts of chemical products. The mechanisms for the formation of reagent-ion, reaction between ion and molecule, separation of ions and molecules and production of plasmogram, are explained. Despite being a very modern technique and the equipment has not yet been put in the market, it is already confirmed that the structural sensitivity of the fluctuation time in DPM is greater than the retention time in chromatographic techniques. (CLB)

1983-01-01

290

Semantics in mobile sensing  

CERN Document Server

The dramatic progress of smartphone technologies has ushered in a new era of mobile sensing, where traditional wearable on-body sensors are being rapidly superseded by various embedded sensors in our smartphones. For example, a typical smartphone today, has at the very least a GPS, WiFi, Bluetooth, triaxial accelerometer, and gyroscope. Alongside, new accessories are emerging such as proximity, magnetometer, barometer, temperature, and pressure sensors. Even the default microphone can act as an acoustic sensor to track noise exposure for example. These sensors act as a ""lens"" to understand t

Yan, Zhixian

2014-01-01

291

Big Dipper Mobile  

Science.gov (United States)

By building their own Big Dipper mobile, kids learn that the distance between stars is not what it appears to be in this OLogy activity. The activity directions are provided as both a Web page and a printable PDF. The activity begins with a brief overview about how the small size of stars and the close distance between them are illusions. Kids then create a replica of the Big Dipper which realistically shows the relative size and distance of the constellation's stars, allowing kids to view the Big Dipper as if they were in a spaceship looking at it from the side.

292

Mobile leak testing system  

International Nuclear Information System (INIS)

The design and implementation are described of a mobile testing unit ULTRATEST M for helium leak tests. The equipment has been developed by Leybold-Heraeus GmbH in Cologne and is in-built in a Mercedes-Benz 208 van. The equipment is designed for the operative use in assembly and construction of nuclear power plants and its throughput is sufficient for checking the whole upper reactor block. It may also be used for removing defects of vacuum equipment requiring a high level of tightness or equally demanding equipment used in the chemical industry. Experience with the equipment is described. (B.S.)

1981-05-14

293

Mobile context aware stories  

Digital Repository Infrastructure Vision for European Research (DRIVER)

An interactive narrative is a story that is shaped by digital technology and that allows the dynamic presentation of scenes or sequences based on input from the user. In this paper we present a new foundation for interactive storytelling that allows a mobile user to interact with a story. The user is placed at the center of the story and the story comes to the user in transit. The behavior and actions of the user influence the scenes and sequences of the story the user experiences. The framew...

Doyle, Linda; O Mahony, Donal Edward

2002-01-01

294

Safe Driving Using Mobile Phones  

Directory of Open Access Journals (Sweden)

Full Text Available In present days mobile phones are plays most important role in every human life, but at the same time in driving of automobile, mobile phones using is the main reason for accidents of automobiles. This Paper is designed and implemented for Safe driving using mobile phones with ARM7 and GSM modules. The use of mobile phones affected driving in different ways. Drivers missed exits, failed to observe traffic signals, and forgot to adjust the speed according to the limit. It was not unusual with incidents or near collisions with other vehicles or objects, or driving off the road, when mobile phones were used while driving. So the driver compulsory take some kind of safety precaution in conjunction with a mobile phone call. By using this system those problems are maximum reduced and safely drive the automobile.

G.SRINIVASA RAO1 , B.PREMALATHA

2013-09-01

295

Distributed Java Mobile Information System  

Directory of Open Access Journals (Sweden)

Full Text Available Technology is now everywhere; integrated into our everyday objects and activities. Mobile computers and devices are now widely affordable and powerful enough. Because of that, developments of mobile applications become a phenomenon today. Mobile applications could be used both to connect people with each other, and to link them with crucial data from almost anywhere in mobile manner. Since mobile devices come in a variety of purposes and properties and in different communication mechanisms, a portable software platform and a flexible and extensible networking supports need to be considered. Java, specifically Java Micro Edition (JME, is particularly an attractive development environment that suits the purpose. This paper discusses a research project of a Java-based smart mobile application. The application, a client/server based application, is designed using JME. It allows the built application to be deployed on any client devices and access to a large variety of network services on the server side. The open source database.

Ahmad Shukri Mohd Noor

2009-12-01

296

Mobile-IP support product/MobileGate{sub TM}; Mobile-IP support seihin / MobileGATE{sub TM}  

Energy Technology Data Exchange (ETDEWEB)

The MobileGate{sub TM} is a Toshiba's software product in which protocol for mobile communication (Mobile-Internet Protocol) is mounted earlier than other companies. A PC mounted with it can be used at a moving position without changing the setting of the IP network environment of the own section. In addition, since the other party can communicate without being conscious about the moving of the PC, the product can be applied to such a case as the PC moves with a communication session retained in the radio LAN environment. The operation of this MobileGate{sub TM} requires a router, which is provided with an agent function for supporting mobile communication, other than the MobileGate{sub TM} software on the PC side. (translated by NEDO)

NONE

2000-03-01

297

Route Optimization in Network Mobility  

Directory of Open Access Journals (Sweden)

Full Text Available NEtwork MObility (NEMO controls mobility of a number of mobile nodes in a comprehensive way using one or more mobile routers. To choose a route optimization scheme, it is very important to have a quantitative comparison of the available route optimization schemes. The focus of this paper is to analyze the degree of Route Optimization (RO, deploy-ability and type of RO supported by each class in general. The comparison shows the differences among the schemes in terms of issues, such as additional header, signaling and memory requirement. We classify the schemes established on the basic method for route optimization, and equal the schemes based on protocol overhead, such as header overhead, amount of signaling, and memory requirements. Lastly the performance of the classes of different schemes has to be estimated under norms such as available bandwidth, topology of the mobile network and mobility type.

Md. Hasan Tareque

2013-01-01

298

Cooperative Distributed Sensors for Mobile Robot Localization  

Directory of Open Access Journals (Sweden)

Full Text Available This paper presents a probabilistic algorithm to collaborate distributed sensors for mobile robot localization. It uses a sample-based version of Markov localization—Monte Carlo localization (MCL, capable of localizing mobile robot in an any-time fashion. During robot localization given a known environment model, MCL method is employed to update robot’s belief whichever information (positive or negative attained from environmental sensors. Meanwhile, an implementation is presented that uses color environmental cameras for robot detection. All the parameters of each environmental camera are unknown in advance and need be calibrated independently by robot. Once calibrated, the positive and negative detection models can be built up according to the parameters of environmental cameras. A further experiment, obtained with the real robot in an indoor office environment, illustrates it has drastic improvement in global localization speed and accuracy using our algorithm.

Zhiwei Liang

2010-05-01

299

Programmable Baseband Filter for Multistandard Mobile Phones  

DEFF Research Database (Denmark)

This paper describes a channel selection filter for mobile communication systems using a direct down conversion architecture. The filter can be programmed to meet the requirements of different communication standards, including GSM (Global System for Mobile communication), WCDMA (Wideband Code Division Multiple Access), and Bluetooth. The filter includes a novel DC offset compensation circuit that combines offset sampling in GSM mode with high pass filtering in WCDMA mode. The filter can be programmed to different noise performance levels by programming the impedance level and power consumption of the input transconductor. The entire filter consumes between 2.5 mW and 7.5 mW, depending on the desired noise performance. It is implemented in a standard 0.25 mum CMOS process. A test circuit has been developed and fabricated and measurements show that both the required programmability and the required transfer functions can be obtained from the designed circuit.

Jensen, Rasmus Glarborg; Christensen, KĂĄre Tais

2003-01-01

300

Observational Evaluation of Mobile Source Emissions  

Science.gov (United States)

Ambient ratios of NOx, CO, and CO2 sampled by aircraft in Houston and Dallas during the 2000 and 2006 Texas Air Quality Study (TexAQS) are compared with each other and with observations at a Houston highway tunnel. From these measurements we estimate 2000 and 2006 emissions for Houston and Dallas mobile sources. The observations demonstrate time-of-day variations in the relative contributions from gasoline and diesel combustion which are consistent with known traffic patterns. We incorporate CO2 emissions derived from the Federal Highway Administration's motor vehicle fuel use statistics into the EPA's National Emission Inventory (NEI), resulting in an emission data set for NOx, CO, and CO2 with 4-km spatial and hourly temporal resolution. Comparison of the emission ratios derived from the TexAQS observations with this inventory allows a direct evaluation of the NEI mobile source NOx and CO emissions.

Frost, G. J.; McKeen, S.; Trainer, M.; Aikin, K.; Peischl, J.; Ryerson, T.; Holloway, J.; Petron, G.; Tans, P.; Harley, R.

2007-12-01

 
 
 
 
301

Cooperative Caching Framework for Mobile Cloud Computing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Due to the advancement in mobile devices and wireless networks mobile cloud computing, which combines mobile computing and cloud computing has gained momentum since 2009. The characteristics of mobile devices and wireless network makes the implementation of mobile cloud computing more complicated than for fixed clouds. This section lists some of the major issues in Mobile Cloud Computing. One of the key issues in mobile cloud computing is the end to end delay in servicing a ...

Joy, Preetha Theresa; Jacob, K. Poulose

2013-01-01

302

Quality Analysis of Mobile Applications  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile applications are defined and different types of mobile applications are identified. Characteristics of quality are defined and their indicators are constructed to measure levels. Take into account 11 parameters analysis for mobile applications, which are arranged using weights and do a detailed analysis of the system of weights. For SMSEncrypt application performance measurement is done using an aggregate indicator based on the obtained weights system.

Ivan, Ion; Zamfiroiu, Alin

2011-01-01

303

Innovative Secure Mobile Banking Services  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Due to the widespread use of computer technologies in almost all aspects of life, organisations that are connected to the Internet started extending their services to their customers to include new applications and services that satisfy their customers’ desires to make better businesses. One of these emerging applications is mobile banking. The term mobile banking (or m-banking) describes the banking services that the user can perform via a mobile device ubiquitously at anytime and from any...

Al-akhras, Mousa T.; Rizik Al-Sayyed; Marwah Alian; Doaa Qwasmi

2011-01-01

304

Security for Mobile Payment Transaction  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The advancement of ICT in a variety of sectors helped in improving the time consuming and rigid service into fast and flexible service that is closer to the reach of individuals. For instance, mobile applications have evolved in different sectors such as healthcare patient support, geographic mapping and positioning, banking, e-commerce payment services and others. This study focuses on one of the most sensitive applications, which is mobile payment. Mobile payment system being one of the wid...

2012-01-01

305

Mobile security and trusted computing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Some of the most significant security issues arising in the context of ubiquitous mobile computing are reviewed. Emerging technologies which may be able to help overcome these security problems are also described; in particular we consider methods for secure 'imprinting' of mobile devices, techniques proposed for establishing trust between devices with no prior relationship, and finally the relevence of trusted computing technology to mobile security issues.

Mitchell, Chris J.

2006-01-01

306

Comparing Mobile Applications' Energy Consumption  

Digital Repository Infrastructure Vision for European Research (DRIVER)

As mobile devices are nowadays used regularly and everywhere, their energy consumption has become a central concern for their users. However, mobile applications often do not consider energy requirements and users have to install and try them to reveal information on their energy behavior. In this paper, we compare mobile applications from two domains and show that applications reveal different energy consumption while providing similar services. We define microbenchmarks for emailing and web...

Wilke, Claas; Richly, Sebastian; Piechnick, Christian; Go?tz, Sebastian; Pu?schel, Georg; Aßmann, Uwe

2013-01-01

307

Spiderweb : A Social Mobile Network  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Social networking sites obtained a great success in the last years. Their popularity is related to changing lifestyles, where people increasingly look for new acquaintances or cultivate old friendships by means of the Internet, typically using a PC. Yet along with the rapidly increasing amount of mobile phone users, as well as the development of so-called smart phones, the possibility for creating similar services for mobiles arises. Importantly, the mobile phones are not just entry points to...

Sapuppo, Antonio

2010-01-01

308

Spiderweb : A Social Mobile Network  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Social networking sites obtained a great success in the last years. Their popularity is related to changing lifestyles, where people increasingly look for new acquaintances or cultivate old friendships by means of the Internet, typically using a PC. Yet along with the rapidly increasing amount of mobile phone users, as well as the development of so-called smart phones, the possibility for creating similar services for mobiles arises. Importantly, the mobile phones are not just entry points to...

Sapuppo, Antonio

2011-01-01

309

Diffusion of mobile Internet services  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile Internet is an outcome of the merging of two significant domains of technological innovation over recent years: mobile/wireless and the Internet. This merging will lead to new forms of end-user behaviour and also provide business opportunities for companies from the converging telecommunications, IT/Internet, and media industries. The diffusion of technological innovations is widely discussed in the literature. However, applications of the diffusion theory to mobile services have mostl...

Kivi, Antero

2011-01-01

310

Reweaving UMA: Urbanism Mobility Architecture:  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The immediate context of this book is the changing theoretical debate within and around mobility. After decades of stagnation into quantitative problem-solving approaches and models of functional organisation the discourse on mobility is now taking its moves - once again - from within the fields of urban design and architecture. However, although there is a growing awareness that mobility is part of the changing perspective towards the built environment, there is still a great deal to do. As ...

2004-01-01

311

Environmental injustice and mobility impairment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The study of mobility is a growth area in the social sciences. The car system (automobility) has had as one of its consequences reduced opportunities for mobility impaired people to walk in their local environment. Immobility has resulted for many people with disabilities. Despite the promotion of physical activity by public health guidance local environments are often hazardous for mobility impaired people. In particular, there is a problem with cars parking on pavements and pavement cycling.

Cahill, Michael

2013-01-01

312

Tethered Contactless Mobile Nuclear Environment Monitoring Robot  

Energy Technology Data Exchange (ETDEWEB)

In fact, the nuclear environment monitoring is significantly crucial for early detection of NPP accident, radiological emergency, the estimation of radiation exposure to nearby residents as well as the long term radioactivity. In the UAE, the nuclear environment monitoring is, however, quite challenging because sampling locations are far from NPPs and the outdoor temperature and humidity are very high for NPP workers to collect soil, air, and water samples. Therefore, nuclear environment monitoring robots (Nubos) are strongly needed for the NPPs in the UAE. The Nubos can be remotely controlled to collect samples in extreme environment instead of NPP workers. Moreover, the Nubos can be unmanned ground vehicles (UGVs), unmanned aerial vehicles (UAVs) and unmanned marine vehicles (UMVs) to collect soil, air, and water samples, respectively. In this paper, the prototype development of UGV type Nubos using power cable for a long distance power delivery, called Tethered contactless mobile Nubo is introduced and validated by experiments. In this paper, the prototype development of Tethered Contactless Mobile (TeCoM) Nubo, which can be powered continuously within several km distance and avoid tangled cable, and the indoor test are finished. As further works, outdoor demonstration and a grand scale R and D proposal of practical Nubo will be proceeded.

Choi, S. Y.; Lee, E. S.; Lee, Kun J.; Kim, Su H.; Rim, C. T. [Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of)

2013-05-15

313

Chromosomal aberrations in mobile phone users in Tamilnadu, southern India  

International Nuclear Information System (INIS)

Complete text of publication follows. Radiofrequency (RF) waves have long been used for different types of information exchange via the airwaves-wireless Morse code, radio, television, and wireless telephony. Increasingly larger numbers of people rely on mobile telephone technology, and health concerns about the associated RF exposure have been raised, particularly because the mobile phone handset operates in close proximity to the human body, and also because large numbers of base station antennas are required to provide widespread availability of service to large populations. In the present study chromosomal damage investigations were carried out on the peripheral blood lymphocytes of individuals using mobile phones, being exposed to MW frequency ranging from 800 to 2000 MHz. The aim of this study is to establish whether mobile phone use (n = 27) increases the frequency of chromosome aberrations (CA) in peripheral blood lymphocytes compared with controls (n = 27) in Tamilnadu, India. After signing a consent form, volunteers provided blood samples (5 ml) to establish cell cultures at 52 hrs. For CA analysis, 100 complete metaphase cells from each subject were evaluated. In the present study, in mobile phone users highly significant results were obtained when compared to control groups. These results highlight a correlation between mobile phone use (exposure to RFR) and genetic damage and require interim public health actions in the wake of widespread use of mobile telephony.

2007-10-17

314

Vulnerability to HIV transmission among mobile rural workers compared to local residents in Beijing:A cross-sectional study  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Background. Mobile Rural Workers have been widely concern as potential source of new HIV infections in China, due to the nature of the mobility and magnitude of the population. Objective. The study aimed at assessing disparities between mobile rural workers and local residents in HIV-related vulnerability by exploring important contextual factors contributing to the disparities. Method. A sample of 134 mobile rural workers and 127 local residents were systematically recruited into a cross-sec...

Yang, Fang

2005-01-01

315

Nuclear powerplants for mobile applications.  

Science.gov (United States)

Mobile nuclear powerplants for applications other than large ships and submarines will require compact, lightweight reactors with especially stringent impact-safety design. This paper examines the technical and economic feasibility that the broadening role of civilian nuclear power, in general, (land-based nuclear electric generating plants and nuclear ships) can extend to lightweight, safe mobile nuclear powerplants. The paper discusses technical experience, identifies potential sources of technology for advanced concepts, cites the results of economic studies of mobile nuclear powerplants, and surveys future technical capabilities needed by examining the current use and projected needs for vehicles, machines, and habitats that could effectively use mobile nuclear reactor powerplants.

Anderson, J. L.

1972-01-01

316

Planar maps as labeled mobiles  

CERN Multimedia

We extend Schaeffer's bijection between rooted quadrangulations and well-labeled trees to the general case of Eulerian planar maps with prescribed face valences, in bijection with a new class of labeled trees, which we call mobiles. Our bijection covers all the classes of maps previously enumerated by either the two-matrix model used by physicists or by the bijection with blossom trees used by combinatorists. Our bijection reduces the enumeration of maps to that, much simpler, of mobiles and moreover keeps track of the geodesic distance within the initial maps via the mobiles' labels. Generating functions for mobiles are shown to obey systems of algebraic recursion relations.

Bouttier, J; Guitter, E

2004-01-01

317

Mobile environmental radiation monitoring station  

International Nuclear Information System (INIS)

A mobile environmental radiation monitoring station has been developed and established for the Israeli Ministry of Environment. The radiation monitoring station is ready for immediate placing in any required location, or can be operated from a vehicle. The station collects data Tom the detector and transfers it via cellular communication network to a Computerized Control Center for data storage, processing, and display . The mobile station is fully controlled from the. Routinely, the mobile station responses to the data request accumulated since the last communication session. In case of fault or alarm condition in the mobile station, a local claim is activated and immediately initiates communication with the via cellular communication network. (authors)

1997-11-16

318

Mutual Mobile Membranes with Timers  

Directory of Open Access Journals (Sweden)

Full Text Available A feature of current membrane systems is the fact that objects and membranes are persistent. However, this is not true in the real world. In fact, cells and intracellular proteins have a well-defined lifetime. Inspired from these biological facts, we define a model of systems of mobile membranes in which each membrane and each object has a timer representing their lifetime. We show that systems of mutual mobile membranes with and without timers have the same computational power. An encoding of timed safe mobile ambients into systems of mutual mobile membranes with timers offers a relationship between two formalisms used in describing biological systems.

Gabriel Ciobanu

2009-10-01

319

Mobile Communication Systems and Security  

CERN Document Server

Mobile Communication Systems and Security arms readers with a thorough understanding of all major cellular air-interface technologies and their security layer techniques. Rhee covers the technological development of wireless mobile communications in compliance with each iterative generation up to 3G systems and beyond, with an emphasis on wireless security aspects. By progressing in a systematic manner, presenting the theory and practice of wireless mobile technologies along with various security problems, readers will gain an intimate sense of how mobile systems operate and how to address com

Rhee, Man Young

2009-01-01

320

Radiometric determination of ion mobility  

International Nuclear Information System (INIS)

With the aid of radionuclides it is possible to measure the migration rate of ions in an electric field and to determine their mobility. The radiometric method enables studies in aqueous and non-aqueous electrolytes. The influence of the electrolyte on the migration rate is shown for the silver cation Ag+. A microsynthesis of perbromate labelled with 82Br is described. The mobility of BrO4- is compared with the mobilities of BrO3- and of Br- in various electrolytes. A phenomenological consideration of hydration numbers of halogen ions indicates a correlation between ion mass and ion mobility. (author)

1980-01-01

 
 
 
 
321

Spiderweb : A Social Mobile Network  

DEFF Research Database (Denmark)

Social networking sites obtained a great success in the last years. Their popularity is related to changing lifestyles, where people increasingly look for new acquaintances or cultivate old friendships by means of the Internet, typically using a PC. Yet along with the rapidly increasing amount of mobile phone users, as well as the development of so-called smart phones, the possibility for creating similar services for mobiles arises. Importantly, the mobile phones are not just entry points to existing social networks with their centralized architectures; being mobile offers one more degree of freedom. However, mobile social network services are unquestionably limited by mobile phones weaknesses (e.g. small screen, keyboards), so several challenges are necessary to be addressed. Consequently, in this paper we analyze usability and user satisfaction of mobile social networks. Thus, a mobile social network application called Spiderweb is implemented and used as a test case. Spiderweb provides to the users an opportunity to make acquaintances, search for people on the basis of certain criteria, chat, view profiles of other users, and with numerous other possibilities. Yet the application not only offers the mobile phone users services similar to social networks available on the web. Spiderweb moves beyond this concept, also giving an opportunity to interact with other users through Bluetooth connectivity. Thus, the application enables establishment of spontaneous collaborative networks which are further explored and evaluated in this paper.

Sapuppo, Antonio

2010-01-01

322

Mobile device security for dummies  

CERN Multimedia

The information you need to avoid security threats on corporate mobile devices Mobile devices have essentially replaced computers for corporate users who are on the go and there are millions of networks that have little to no security. This essential guide walks you through the steps for securing a network and building a bulletproof framework that will protect and support mobile devices in the enterprise. Featuring real-world case scenarios, this straightforward guide shares invaluable advice for protecting mobile devices from the loss of sensitive and confidential corporate informati

Campagna, Rich; Krishnan, Ashwin

2011-01-01

323

Combine mobile monitoring conception  

Energy Technology Data Exchange (ETDEWEB)

This work is a document of joint final report of the collaboration between CHESCIR and JAERI on the Subject-1 'A Study on the Measurements and Evaluation of External Dose after Nuclear Accident' of JCP-1 project 'A Study on the Assessment, Analysis and Verification of the Consequences of the accident at Chernobyl' in the framework of the Agreement between JAERI and RIA 'PRIPYAT' (since 1994, CHESCIR) for 1995-1999. The most substantial part of the collaboration was research with using mobile gamma survey system, that was developed in JAERI and equipped with GIS - navigator that was developed in CHESCIR. During collaboration the carbone survey on the network of roads covered most are contaminated by Chernobyl fallout in Ukraine, Belorussia and Russia. Routes of carbone survey, carried out by CHESCIR team together with JAERI and alone for the last 5 years are shown in a non-complete map. Length of all routes taking into considers double raids is longer than 18,000 km. Experimental and methodological experience of mobile monitoring that collected by both sides allows to make considerations and conclusions, which are available in this final report. (J.P.N.)

Stolyarevsky, I.; Ivanov, J.A.; Arkhipov, N. [Chernobyl Scientific and Technical Center for International Researches (CHESCIR) (Ukraine)] [and others

2001-03-01

324

Combine mobile monitoring conception  

International Nuclear Information System (INIS)

This work is a document of joint final report of the collaboration between CHESCIR and JAERI on the Subject-1 'A Study on the Measurements and Evaluation of External Dose after Nuclear Accident' of JCP-1 project 'A Study on the Assessment, Analysis and Verification of the Consequences of the accident at Chernobyl' in the framework of the Agreement between JAERI and RIA 'PRIPYAT' (since 1994, CHESCIR) for 1995-1999. The most substantial part of the collaboration was research with using mobile gamma survey system, that was developed in JAERI and equipped with GIS - navigator that was developed in CHESCIR. During collaboration the carbone survey on the network of roads covered most are contaminated by Chernobyl fallout in Ukraine, Belorussia and Russia. Routes of carbone survey, carried out by CHESCIR team together with JAERI and alone for the last 5 years are shown in a non-complete map. Length of all routes taking into considers double raids is longer than 18,000 km. Experimental and methodological experience of mobile monitoring that collected by both sides allows to make considerations and conclusions, which are available in this final report. (J.P.N.)

2001-03-01

325

The Mobile Chamber  

Science.gov (United States)

A document discusses a simulation chamber that represents a shift from the thermal-vacuum chamber stereotype. This innovation, currently in development, combines the capabilities of space simulation chambers, the user-friendliness of modern-day electronics, and the modularity of plug-and-play computing. The Mobile Chamber is a customized test chamber that can be deployed with great ease, and is capable of bringing payloads at temperatures down to 20 K, in high vacuum, and with the desired metrology instruments integrated to the systems control. Flexure plans to lease Mobile Chambers, making them affordable for smaller budgets and available to a larger customer base. A key feature of this design will be an Apple iPad-like user interface that allows someone with minimal training to control the environment inside the chamber, and to simulate the required extreme environments. The feedback of thermal, pressure, and other measurements is delivered in a 3D CAD model of the chamber's payload and support hardware. This GUI will provide the user with a better understanding of the payload than any existing thermal-vacuum system.

Scharfstein, Gregory; Cox, Russell

2012-01-01

326

Mobile Router Developed and Tested  

Science.gov (United States)

The NASA Glenn Research Center, under a NASA Space Act Agreement with Cisco Systems, has been performing joint networking research to apply Internet-based technologies and protocols to space-based communications. As a result of this research, NASA performed stringent performance testing of the mobile router, including the interaction of routing and the transport-level protocol. In addition, Cisco Systems developed the mobile router for both commercial and Government markets. The code has become part of the Cisco Systems Internetworking Operating System (IOS) as of release 12.2 (4) T--which will make this capability available to the community at large. The mobile router is software code that resides in a network router and enables entire networks to roam while maintaining connectivity to the Internet. This router code is pertinent to a myriad of applications for both Government and commercial sectors, including the "wireless battlefield." NASA and the Department of Defense will utilize this technology for near-planetary observation and sensing spacecraft. It is also a key enabling technology for aviation-based information applications. Mobile routing will make it possible for information such as weather, air traffic control, voice, and video to be transmitted to aircraft using Internet-based protocols. This technology shows great promise in reducing congested airways and mitigating aviation disasters due to bad weather. The mobile router can also be incorporated into emergency vehicles (such as ambulances and life-flight aircraft) to provide real-time connectivity back to the hospital and health-care experts, enabling the timely application of emergency care. Commercial applications include entertainment services, Internet protocol (IP) telephone, and Internet connectivity for cruise ships, commercial shipping, tour buses, aircraft, and eventually cars. A mobile router, which is based on mobile IP, allows hosts (mobile nodes) to seamlessly "roam" among various IP subnetworks. This is essential in many wireless networks. A mobile router, unlike a mobile IP node, allows entire networks to roam. Hence, a device connected to the mobile router does not need to be a mobile node because the mobile router provides the roaming capabilities. There are three basic elements in the mobile IP: the home agent, the foreign agent, and the mobile node. The home agent is a router on a mobile node's home network that tunnels datagrams for delivery to the mobile node when it is away from home. The foreign agent is a router on a remote network that provides routing services to a registered mobile node. The mobile node is a host or router that changes its point of attachment from one network or subnetwork to another. In mobile routing, virtual communications are maintained by the home agent, which forwards all packets for the mobile networks to the foreign agent. The foreign agent passes the packets to the mobile router, which then forwards the packets to the devices on its networks. As the mobile router moves, it will register with its home agent on its whereabouts via the foreign agent to assure continuous connectivity.

Ivancic, William D.

2002-01-01

327

Microfungal contaminants on mobile phones of health services vocational school students in Marmaris, Turkey.  

Science.gov (United States)

In this study, it was aimed to determine microfungi on mobile phones. Totally, 50 mobile phones were used belonging to Health Services Vocational School students. The samples were taken by swabbing the screen and keys of mobile phones using moistened sterile swab sticks. A total of 24 different microfungal species were obtained belonging to Alternaria, Aspergillus, Cladosporium, Geotrichum, Penicillium, Phoma, Rhinocladiella, Scopulariopsis, Trichoderma, and Trichophyton genera. The genera of microfungi most abundant in terms of the number of species on the mobile phones were Aspergillus, Cladosporium, and Penicillium. Numerically, Cladosporium was found as the most abundant on the mobile phones. Cladosporium herbarum colonies were highest in number, followed by Cladosporium sphaerospermum, and Penicillium verrucosum var. cyclopium. When percentages of each species present on the mobile phones were considered, C. herbarum and C. sphaerospermum were the most common. There was a great similarity between the dominant microfungi isolated from mobile phones and dominant microfungi obtained from studies of atmospheric microfungi in Turkey. PMID:24318841

Özkan, Vedat Kadir; Sülün, Yusuf

2014-02-01

328

Mobility improvement by detached solidification of CZT crystals  

Energy Technology Data Exchange (ETDEWEB)

The mobility of undoped CdZnTe (CZT) crystals grown by vertical Bridgman method is improved by growing crystals without wall contact. Among the different factors playing an important role for appearance of detached growth, we have chosen the freezing rate as an effective factor for investigation with other factors were held constant. After growing a set of samples we have measured the dislocation densities for the grown samples by Warren-Averbach method. Unique results were obtained when we compared the dislocation densities and mobility, together with the freezing rate. This work and the included relations are published for the first time.

Gamal, G.A. [Physics Department, Faculty of Science, South Valley University, Qena 83523 (Egypt); Abou Zied, M. [Physics Department, Faculty of Science, South Valley University, Qena 83523 (Egypt); Ebnalwaled, A.A. [Physics Department, Faculty of Science, South Valley University, Qena 83523 (Egypt)]. E-mail: Kh_ebnalwaled@yahoo.com

2007-06-15

329

Mobility improvement by detached solidification of CZT crystals  

International Nuclear Information System (INIS)

The mobility of undoped CdZnTe (CZT) crystals grown by vertical Bridgman method is improved by growing crystals without wall contact. Among the different factors playing an important role for appearance of detached growth, we have chosen the freezing rate as an effective factor for investigation with other factors were held constant. After growing a set of samples we have measured the dislocation densities for the grown samples by Warren-Averbach method. Unique results were obtained when we compared the dislocation densities and mobility, together with the freezing rate. This work and the included relations are published for the first time

2007-06-15

330

Elastic Calculator : A Mobile Application for windows mobile using Mobile Cloud Services  

Directory of Open Access Journals (Sweden)

Full Text Available Cloud computing is highly significant in this era as it always shows a way to increase the capacity or to add an additional features on the go and also it is worthy to extend these services to mobiledevices. It is proposed to design and implement Elastic Calculator for mobile cloud services with virtual machines. The system comprises of a flexible application that was developed partly on own machine andpartly on the cloud. Application is developed in two parts, with the front end and user interface at the mobile device and all the execution part is moved to the server running on the cloud. At runtime, the process execution is suspended at the mobile device and migrated from mobile device at a particular point to the cloud to perform all the computation and is later re-integrated back to the mobile device. This technique helps applications in achieving high processing efficiency with reduced energy on the mobile devices.

K.Lakshmi Narayanan

2013-06-01

331

Exxon Mobil, world oil leader; Exxon Mobil, leader petrolier mondial  

Energy Technology Data Exchange (ETDEWEB)

Announced on December 1, 1998, the Exxon-Mobil merger was approved by the US Federal Trade Commission almost one year later, i.e. on November 30, 1999. Under its new name of ExxonMobil, the group - chaired by Lee Raymonds - will be organised along 11 autonomous branches. (authors)

Anon.

2000-01-01

332

Mobile IPv6 Protocols and Implementation  

CERN Multimedia

Mobile IPv6 has become the key enabling technology for mobile data and multimedia services and devices worldwide. This book covers the IPv6 host mobility protocol known as 'mobile IPv6' and begins with a basic description of mobile IPv6 and then details protocol specifications and data structures as well as actual implementation.

Li, Qing; Shima, Keiichi

2009-01-01

333

Mobile-to-Mobile Multimedia Service Provisioning in the IMS Using REST-Based Mobile Services  

Directory of Open Access Journals (Sweden)

Full Text Available With the merging of IP and TelCo networks, Mobile-to-Mobile (M2M social networks are to be unfolded as an ultimate telecom business in the near future. By M2M, both service provider and service client are aimed to be mobile based. Hence considering mobile devices to be resource constrained and mobile networks as low-bandwidth networks, provisioning high-profile multimedia services is not somewhat straight forward. The Quality of Service (QoS has always been a great concern in this scenario. Additionally in M2M service networks, the direct IP accessibility of mobile devices is a bottleneck in seamless communication. The cellular operators typically block every incoming http access to subscribers devices inside and outside the network due to huge traffic load and security reasons. The paper addresses the issues faced in M2M service networks and presents a solution based on the IP Multimedia Subsystem (IMS. Similar to SIP Application Servers (AS in the IMS network, the concept of Mobile Application Servers (Mob-AS is introduced in order to host and execute multimedia services from a mobile device. A comprehensive design of Mob-AS is presented based on the existing REST interfaced synchronous and asynchronous mobile server framework.

Muzzamil Aziz Chaudhary

2013-07-01

334

CONSUMERS’ ATTITUDES TOWARDS MOBILE MARKETING AND MOBILE COMMERCE IN CONSUMER MARKETS  

Directory of Open Access Journals (Sweden)

Full Text Available Advances in information and communication technologies are not only offering new marketing channels to companies but also significantly influencing the ways in which companies conduct their businesses and marketing activities. This paper analyses the possible significant impacts of mobile phone technology developments on marketing, and offers insights into mobile commerce and mobile marketing, which have not previously been investigated in Turkey. In the survey, mobile phone users’ attitudes towards mobile commerce and mobile marketing and their intentions to benefit from mobile phones are searched. The empirical results show that the mobile phone users’ adoption of mobile shopping is low, and apart from mobile shopping, mobile phone users have positive attitudes towards mobile advertising, entertainment, discount coupons and mobile marketing. Moreover, the demographics characteristics (age, income, occupation and employment of mobile phone users who have more positive attitudes towards mobile marketing tools are determined and managerial implications and recommendations are also given to increase mobile commerce and marketing adoption rates.

Süleyman BARUTÇU

2008-01-01

335

76 FR 41522 - In the Matter of Certain Electronic Devices, Including Mobile Phones, Mobile Tablets, Portable...  

Science.gov (United States)

...Devices, Including Mobile Phones, Mobile Tablets, Portable Music Players, and Computers, and Components Thereof; Notice of...importation of certain mobile phones, mobile tablets, portable music players, and computers. 76 FR 24051 (Apr. 29,...

2011-07-14

336

Mobile inspection robot development  

International Nuclear Information System (INIS)

Recently, varied development work on automatic and remote-controlled equipment or apparatus such as robots has been carried out in order to reduce radiation exposures and to save on personnel time in nuclear facilities. A mobile inspection robot has been developed that is capable of moving along the floor, mainly for improving nuclear facility or components inspection during operation. The inspection robot has been developed for use in the primary containment vessel where the environmental conditions are those of relatively high humidity and temperatures (maximum 100%, 700C) and high radiation dose rates (of approx.100 R/h). The inspection robot consists of: a vehicle that moves along the floor with four crawlers; a multijoint arm mechanism for observation sensors; a mutual signal transmission circuit; a cable-handling device; and a computer system for both remote manual and automatic operation

1985-11-01

337

The Microbial Colonisation of Mobile Phone Used by Healthcare Staffs  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile phones are dispensable accessories in social life and normally they are not cleaned properly. Therefore, they serve as a reservoir of bacteria and may cause nosocomial infections in hospitals. The purpose of this study was to investigate microbiological colonization of mobile phones used by healthcare staffs. The study was carried out collecting swab samples with Cary-Blair transport medium from mobile phones of attending healthcare staffs from different departments of three hospitals in March, 2008. All collected samples were inoculated in 5% sheep blood agar, eosin-methylene blue agar and Sabouraud Dextrose agar. Isolated bacteria were identified using by classic technique and Vitec2 (Biomerieux, France full automated bacteria identification system. Growth was observed in 65 of collected 106 samples, corresponding to 61.3%. The most frequent bacteria were Staphylococcus epidermidis followed by Staphylococcus aureus, Bacillus sp., Corynebacterium sp. and Escherichia coli, respectively. In conclusion, bacteria were colonized on mobile phones frequently and mobile phones may become reservoir of microorganism for nosocomial infections.

I.H. Kilic

2009-01-01

338

Mobile Technology and Liberal Education  

Science.gov (United States)

In this article, the author offers reflections on the impact of mobile technology for liberal education. These reflections are based on his own experience of incorporating iPads in his communication courses during the 2010-2011 academic year. As a member of an interdisciplinary faculty learning community on the use of mobile tablets, he explored…

Rossing, Jonathan P.

2012-01-01

339

Mobile security a pocket guide  

CERN Document Server

The book provides a concise reference to the key security issues affecting those that deploy and use mobile technologies to support their organisations. It aims to raise awareness of the threats to which mobile devices, users and data are exposed, as well as to provide advice on how to address the problems

Furnell, Steven

2009-01-01

340

HTML5 Mobile Development Cookbook  

CERN Document Server

The book is written in a cookbook style, presenting examples in the style of recipes, allowing you to go directly to your topic of interest, or follow topics throughout a chapter to gain in-depth knowledge. Developers keen to create HTML5 mobile websites that are fast and responsive across a whole range of mobile devices.

Chuan, Shi

2012-01-01

 
 
 
 
341

Mobile communications data services marketing  

Directory of Open Access Journals (Sweden)

Full Text Available Increasing revenue per user is very important for mobile operators because of shrinking growth from mobile voice services on a number of markets. At the same time, a more powerful platform enabling advanced mobile data services has emerged. Therefore, mobile data services offer great possibilities to operators in the future. Marketing plays the key role in offering new and existing data services. Experiences in launching various services, primarily a comparison of Japanese and other experiences, shows that different strategies and marketing mix employed in launching data services can lead to different business results in this area. The needs and preferences of Croatian mobile users are explored in this paper, especially in the following areas: the most used and potentially most interesting data services, a preferred way of paying for these services, the importance of transaction security in mobile payments and a comparison of the use of and interest in such services by users with more advanced mobile terminals and those with older mobile phones. Results imply that a strong and attractive presence of these services in the media is crucial to success. It is also important to communicate clearly the benefits of these services, along with lower prices (or promotional periods as well as easy activation and use. Last but not least: the existence of attractive content and applications (where fair arrangements among all providers of these services is the main prerequisite is essential for a faster adoption and use of these services.

Stanislav Maruši?

2006-12-01

342

Social Properties of Mobile Video  

Science.gov (United States)

Mobile video is now an everyday possibility with a wide array of commercially available devices, services, and content. These new technologies have created dramatic shifts in the way video-based media can be produced, consumed, and delivered by people beyond the familiar behaviors associated with fixed TV and video technologies. Such technology revolutions change the way users behave and change their expectations in regards to their mobile video experiences. Building upon earlier studies of mobile video, this paper reports on a study using diary techniques and ethnographic interviews to better understand how people are using commercially available mobile video technologies in their everyday lives. Drawing on reported episodes of mobile video behavior, the study identifies the social motivations and values underpinning these behaviors that help characterize mobile video consumption beyond the simplistic notion of viewing video only to kill time. This paper also discusses the significance of user-generated content and the usage of video in social communities through the description of two mobile video technology services that allow users to create and share content. Implications for adoption and design of mobile video technologies and services are discussed as well.

Mitchell, April Slayden; O'Hara, Kenton; Vorbau, Alex

343

Vehicular Mobility Simulation For VANET  

Directory of Open Access Journals (Sweden)

Full Text Available The study of vehicular ad-hoc networks (VANETs requires efficient and accurate simulation tools. As the mobility of vehicles and driverbehaviour can be affected by network messages, these tools must include a vehicle mobility model integrated with a quality network simulator. We present the first implementation of a well known vehicle mobility model to NS-3.Vehicular ad-hoc networks are self organised networks built up from moving vehicles, and are part of the broader class of Mobile ad-hoc networks (MANET.One of the main challenges posed by VANET simulation is the faithful characterization of vehicular mobility at both macroscopic and microscopic levels, leading to realistic non-uniform distributions of cars and velocity, and unique connectivity dynamics. In this paper, we first present and describe VanetMobiSim, a freely available generator of realistic vehicular movement traces for networks simulators.

Miss.Shruti S.Khope

2013-05-01

344

WEB SERVICES FOR MOBILE COMPUTING  

Directory of Open Access Journals (Sweden)

Full Text Available In todays day to day life,mobile users are becoming popular clients to consume any type of web resources such as web service. However, there are problems in connecting mobile devices to existing WS. This paper focuses on three of the following challenge : time and speed,bandwidth/latency,limited resources. This paper implements and developes a cross-platform architecture for connecting mobile devices to the WS. The architecture includes a platform independent design of mobile client and a middleware for enhancing the communication between mobile clients and WS. Finally, the middleware can be deployed on Cloud Platforms, like Google App Engine and Amazon EC2, to enhance the scalability and reliability. The experiments evaluate the optimization/adaptation, overhead of the middleware.

Piyush M.Patil , Kushal Gohil, Rohit Madhavi

2012-05-01

345

Electromagnetic Fields and Public Health: Mobile Phones  

Science.gov (United States)

Electromagnetic fields and public health: mobile phones Fact sheet N°193 June 2011 Key facts Mobile phone use ... an estimated 4.6 billion subscriptions globally. The electromagnetic fields produced by mobile phones are classified by the ...

346

76 FR 34871 - Mobile Barcode Promotion  

Science.gov (United States)

...POSTAL SERVICE 39 CFR Part 111 Mobile Barcode Promotion AGENCY: Postal Service TM...flats bearing two-dimensional mobile barcodes. DATES: Effective Date: July 5, 2011...mailpiece, a two-dimensional mobile barcode readable by consumer smartphones....

2011-06-15

347

Helium mobility in advanced nuclear ceramics  

Science.gov (United States)

The techniques of ion implantation and nuclear reaction depth profiling are used to measure helium migration parameters under thermal ageing in advanced nuclear ceramics such as TiC, ZrC and TiN. Helium release measurements and activation energy calculations have been carried out in the temperature range of 1000–1600 °C for time periods of 2 h. Activation energy values are obtained in the range 0.7–1.2 eV. Due to rare availability of stoichiometric samples, the trapping of He in native vacancies seems to affect the mobility of He. Blisters are observed only at the surface of ZrC on thermal annealing.

Agarwal, S.; Trocellier, P.; Serruys, Y.; Vaubaillon, S.; Miro, S.

2014-05-01

348

Crack detection by mobile photothermal probe  

Energy Technology Data Exchange (ETDEWEB)

Within the frame of a previous study, encouraging results were obtained regarding the detection of microcracks by Photo Thermal Radiometry under sinusoidal excitation. However, the used method was too slow for an industrial application. It was therefore necessary to consider faster means of analysis. Such is the object of the present study. The authors show that, by using a mobile photothermal probe displaced relatively to the sample, it is possible to rapidly detect opened or non opened cracks, of a few tens of micrometers wide, and a few hundred of micrometers deep.

Bodnar, J.L.; Egee, M.; Menu, C. [Faculte des Sciences, Reims (France); Blanc, A. le; Besnard, R. [CEA, Saclay (France); Sellier, J.Y. [Intercontrole, Rungis (France)

1994-12-31

349

Ubiquitous Mobility with Mobile Phones: A Cultural Ecology for Mobile Learning  

Science.gov (United States)

This article argues that mobile phones should be viewed as new cultural resources that operate within an individualized, mobile and convergent mass communication; such a recognition facilitates the options for a cultural ecology. A particular challenge here is to find adequate curricular functions in school where the inclusion of these new…

Cook, John; Pachler, Norbert; Bachmair, Ben

2011-01-01

350

Mobile and Social: Ten Best Practices for Designing Mobile Applications  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper gives ten best practices for designing mobile applications that have social-networking functions. The need for such an approach is given by the rapid growth in impor-tance of both social networks and mobile applications. In order to make it easy to follow where the best practices come from, the paper starts with a look at why social networks are more than just a buzz word and at how the field of mobile applications is evolving. It also shows how and why the two fields go together s...

Lica, Liviu

2010-01-01

351

Mobility Impact on Centralized Selection of Mobile Relays  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper considers the impact of node mobility on the selection of the lowest bit error rate (BER) relay path from access point to destination node in a downlink data transmission scenario. The access point uses link signal to noise ratio (SNR) measurements provided by the mobile nodes to select the path either as direct or two-hop via a mobile relay. The impact of delays in the measurement collection procedure in this scheme is analyzed in comparison to an ideal selection and an always dir...

Nielsen, Jimmy Jessen; Madsen, Tatiana Kozlova; Schwefel, Hans-peter

2010-01-01

352

Throughput Optimization in Mobile Backbone Networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper describes new algorithms for throughput optimization in a mobile backbone network. This hierarchical communication framework combines mobile backbone nodes, which have superior mobility and communication capability, with regular nodes, which are constrained in mobility and communication capability. An important quantity of interest in mobile backbone networks is the number of regular nodes that can be successfully assigned to mobile backbone nodes at a given throughput level. This ...

Craparo, Emily M.; How, Jonathan P.; Modiano, Eytan H.

2009-01-01

353

Tracking of Mobile Devices Through Bluetooth Contacts  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We investigate if it is possible to reconstruct a mobile phone’s mobility using its Bluetooth contacts with other mobile devices, some of which are equipped with GPS receivers. Our data mining analysis, based on two different data sets, shows that in certain environments coarse grained mobility of a significant portion of mobile phones can be obtained using this technique. For this reason, anyone capable of collecting Bluetooth and, if available, GPS logs for a large population of mobile ph...

Ristanovic, Nikodin; Tran, Dang Khoa; Le Boudec, Jean-yves

2010-01-01

354

SIMPS: Using Sociology for Personal Mobility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Assessing mobility in a thorough fashion is a crucial step toward more efficient mobile network design. Recent research on mobility has focused on two main points: analyzing models and studying their impact on data transport. These works investigate the consequences of mobility. In this paper, instead, we focus on the causes of mobility. Starting from established research in sociology, we propose SIMPS, a mobility model of human crowd motion. This model defines two complimen...

Borrel, Vincent; Legendre, Franck; Amorim, Marcelo Dias; Fdida, Serge

2006-01-01

355

Mobile Internet usage measurements : case Finland  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile Internet is the outcome of two intense and global trends of the recent years: mobile/wireless and the Internet. Despite the potential the hundreds of millions of new mobile devices sold globally each year present, little information on mobile data service usage apart from mobile operator portals is currently available. In this research, mobile Internet usage was measured in fall 2005 using three fundamentally different methods to answer the question What are the characteristics of ...

Kivi, Antero

2006-01-01

356

Data Management Infrastructure for the Mobile Web  

DEFF Research Database (Denmark)

The Internet is going mobile, and indications are that the mobile Internet will be "bigger" than the conventional Internet. Due to aspects such as user mobility, much more diverse use situations, and the form factor of mobile devices, context awareness is important on the mobile Internet. Focusing on geo-spatial context awareness, this talk covers research that aims to build infrastructure for mobile data management.

Jensen, Christian Søndergaard

2009-01-01

357

Scenario Analysis on LTE mobile network virtualization  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The LTE mobile network has dominated the mobile market nowadays. However, the LTE mobile network cannot deal with the growing data traffic due to the insufficient capacity and lack of network flexibility. The LTE mobile network virtualization, on the other hand, is a technology enable the LTE mobile network to meet those increasing requirements. Some researches of the LTE mobile network virtualization have been done in terms of the technology study and cost measurement. Yet, no research deplo...

2013-01-01

358

Developing Online Promotion Mix For Mobile Application  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The proliferation of mobile phones has led to a growing number of mobile applications on the market. As a result, the mobile application market has been more competitive than ever with many players. This requires any mobile application company to adopt a strategic online promotion mix to increase its market share and user base. Company X is a mobile application company whose main product is a mobile web browser called product X. Product X aims at providing better browsing experiences to t...

Dieu Hong Tran, Thi

2013-01-01

359

Multiphase sampling using expected value of information  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper explores multiphase or infill sampling to reduce uncertainty after an initial sample has been taken and analysed to produce a map of the probability of some hazard. New observations are iteratively added by maximising the global expected value of information of the points. This is equivalent to minimisation of global misclassification costs. The method accounts for measurement error and different costs of type I and type II errors. Constraints imposed by a mobile sensor web can be ...

2011-01-01

360

Dimensions and Issues of Mobile Agent Technology  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile Agent is a type of software system which acts “intelligently” on one’s behalf with the feature ofautonomy, learning ability and most importantly mobility. Now mobile agents are gaining interest in theresearch community. In this article mobile agents will be addressed as tools for mobile computing. Mobileagents have been used in applications ranging from network management to information management. Wepresent mobile agent concept, characteristics, classification, need, applications and technical constraints inthe mobile technology. We also provide a brief case study about how mobile agent is used for informationretrieval

Yashpal Singh

2012-10-01

 
 
 
 
361

Mobile Phone Tracking & Positioning Techniques  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile positioning technology has become an important area of research, for emergency as well as for commercial services. Mobile positioning in cellular networks will provide several services such as, locating stolen mobiles, emergency calls, different billing tariffs depending on where the call is originated, and methods to predict the user movement inside a region. The evolution to location-dependent services and applications in wireless systems continues to require the development of more accurate and reliable mobile positioning technologies. The major challenge to accurate location estimation is in creating techniques that yield acceptable performance when the direct path from the transmitter to the receiver is intermittently blocked. This is the Non-Line-Of-Sight (NLOS problem, and it is known to be a major source of error since it systematically causes mobile to appear farther away from the base station (BS than it actually is, thereby increasing the positioning error. In this paper, we present a simple method for mobile telephone tracking and positioning with high accuracy. Through this we will discuss some technology used for mobile positioning and tracking.

LAXMANA SIRIDHARA ARIGELA

2013-04-01

362

Framework for Mobile Payments Integration  

DEFF Research Database (Denmark)

This paper derives a theoretical framework for consideration of both the technologically driven dimensions of mobile payment solutions, and the associated value proposition for customers. Banks promote traditional payment instruments whose value proposition is the management of risk for both consumers and merchants. These instruments are centralised, costly and lack decision support functionality. The ubiquity of the mobile phone has provided a decentralised platform for managing payment processes in a new way, but the value proposition for customers has yet to be elaborated clearly. This inertia has stalled the design of sustainable revenue models for a mobile payments ecosystem. Merchants and consumers in the meantime are being seduced by the convenience of onâ??line and mobile payment solutions. Adopting the purchase and payment process as the unit of analysis, the current mobile payment landscape is reviewed with respect to the creation and consumption of customer value. From this analysis, a framework is derived juxtaposing customer value, related to what is being paid for, with payment integration, related to how payments are being made. The framework provides a theoretical and practical basis for considering the contribution of mobile technologies to the payment industry. The framework is then used to describe the components of a mobile payments pilot project being run on a trial population of 250 students on a campus in Ireland. In this manner, weaknesses in the value proposition for consumers and merchants were highlighted. Limitations of the framework as a research tool are also discussed.

Carton, Fergal; Hedman, Jonas

2012-01-01

363

Leucocyte mobilization to skin lesions  

International Nuclear Information System (INIS)

Leucocyte mobilization to a chamber covering a skin lesion was studies in healthy volunteers."1"1"1Indium-labelled blood leucocytes accumulated in the chambers, indicating mobilization of leucocytes from the blood. The concentration of autologous serum in the chamber medium influenced the number of leucocytes mobilized, while heat inactivation of serum or the repeated use of the same serum had no effect on the counts. The use of zymosan-treated increased the mobilization by up to 53 %. The kinetics for the mobilization of leucocytes to chambers containing autologous serum was followed in healthy subjects. The mobilization showed a uniform pattern, viz. a lag phase of 2-4 hours and maximal migration rates after 20-24 hours. The cumulated counts were 74 x 10"6 leucocytes/cm"2/24 hours and 200 x 10"6leucocytes/cm"2/48 hours. Females and males exhibited the same kinetics and cumulated counts. Chamber leucocytes were predominantly neutrophil granulocytes (85-100 %) with 2.9-3.6 nuclear segments. The chamber technique provides a simple method permitting quantitation of in vivo mobilization of leucocytes from the blood to an inflammatory lesion. (author)

1980-01-01

364

Vast Educational Mobile Content Broadcasting using ARMrayan Multimedia Mobile CMS  

CERN Document Server

The huge information flow currently available to young generation makes it difficult for educational centers to train them as needed. Most of these information flows occur in transportation time or while on public areas. Competing with commercial information streams is far out of educational centers time and budget. For creating enough mobile applications for vast educational mobile content broadcasting that can match young spirits as well, we designed and developed the ARMrayan Multimedia Mobile CMS as the software that helps communities, educational, cultural or marketing centers in a way that ordinary operators be able to create a variety of fully functional multimedia mobile applications such as tutorials, catalogues, books, and guides in minutes without writing even a line of code. In this paper, we present the role of our developed software in our proposed vast educational content broadcasting system using kiosks and Bluetooth advertising, which will lead to a great leap in M-commerce marketing and publ...

Fatahi, Somayeh; Jahromi, Zahra Forootan

2010-01-01

365

Mobile Processes: Enhancing Cooperation in Distributed Mobile Environments  

Directory of Open Access Journals (Sweden)

Full Text Available

Currently, context awareness is one of the main trends in distributed mobile computing environments. Against this background, the demand for more complex – and additionally long-term – mobile applications increases continuously. Nevertheless, most current available mobile applications – as well as their supporting middleware platforms – are still relatively monolithic and closed systems, concentrating on only short-term activities. As a consequence, most present appliances are still restricted to rather simple tasks and are therefore rather insufficient for more complex ones which consist of sequences of related long-term activities tied together in respective application-oriented processes. In order to overcome the resource and capability restrictions of mobile environments, such application processes may profit from, e.g., cooperation between devices in the mobile vicinity – a fact which is hardly supported by existing systems. Therefore, this paper introduces a concept for integrating explicit support for mobile processes into mobile system infrastructures and for distributing their execution over different nodes in the network. Additionally, a corresponding middleware platform for context-aware and cooperative mobile applications is proposed. This framework has been designed and realized in the context of project DEMAC (Distributed Environment for Mobility-Aware Computing which supports such migrating processes and helps to execute them under the restrictions imposed by realistic mobile applications. In particular, this paper proposes a corresponding process description language and an execution model for such mobile (business processes.

Winfried Lamersdorf

2007-02-01

366

Radiation source set of mobile 60Co container inspection system  

International Nuclear Information System (INIS)

The structure and the work principle of radiation source set of mobile 60Co container inspection system are described. The sample of radiation source set was manufactured. Test results show that the design of radiation source set meets the requirements of the system. The radiation source set works with high reliability and safety. (authors)

2005-07-01

367

Exploring mobile learning success factors  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper is a comparative account and analysis of three mobile Web 2.0 projects instigated within a tertiary learning environment during 2008. Following the successful instigation of a mobile Web 2.0 project in the third year of a Bachelor of Product Design course during semester one, similar projects were initiated in semester two within the first-year and second-year Bachelor of Product Design courses. A common methodology for supporting and facilitating mobile Web 2.0 projects was used f...

Cochrane, Thomas D.

2010-01-01

368

Speech processing in mobile environments  

CERN Document Server

This book focuses on speech processing in the presence of low-bit rate coding and varying background environments. The methods presented in the book exploit the speech events which are robust in noisy environments. Accurate estimation of these crucial events will be useful for carrying out various speech tasks such as speech recognition, speaker recognition and speech rate modification in mobile environments. The authors provide insights into designing and developing robust methods to process the speech in mobile environments. Covering temporal and spectral enhancement methods to minimize the effect of noise and examining methods and models on speech and speaker recognition applications in mobile environments.

Rao, K Sreenivasa

2014-01-01

369

Rural medicine via mobile network  

International Nuclear Information System (INIS)

Bhabha Atomic Research Centre (BARC) has developed a handheld Tele-ECG system for providing optimum cardiac care and a Mobile Network Based Telemedicine (MNBT) utility for providing telemedicine services to isolated rural population. The handheld Tele-ECG acquires, saves and transfers the electrocardiographic signal to the expert's mobile for his advice in dealing with cardiac emergencies. Similarly, MNBT utility transfers the medical images and relevant patient data from a PC based instrument to a mobile phone for further transmission to an expert for his advice. This paper summarizes these developments. (author)

2009-11-25

370

Measurement of mobile antenna systems  

CERN Document Server

If you're involved with the design, installation or maintenance of mobile antenna systems, this thoroughly revised and updated edition of a classic Artech book offers you the most current and comprehensive coverage of all the mandatory measurement techniques you need for your work in the field. This Second Edition presents critical new material in key areas, including radiation efficiency measurement, mobile phone usage position, and MIMO (multiple-input/multiple-output) antennas.This unique resource provides in-depth examinations of all relevant mobile antenna measurement theories, along with

Arai, Hiroyuki

2012-01-01

371

Electron mobility in silicon nanowires  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The low-field electron mobility in rectangular silicon nanowire (SiNW) transistors was computed using a self-consistent Poisson-Schr\\"{o}dinger-Monte Carlo solver. The behavior of the phonon-limited and surface-roughness-limited components of the mobility was investigated by decreasing the wire width from 30 nm to 8 nm, the width range capturing a crossover between two-dimensional (2D) and one-dimensional (1D) electron transport. The phonon-limited mobility, which characteri...

Ramayya, E. B.; Vasileska, D.; Goodnick, S. M.; Knezevic, I.

2008-01-01

372

A Secure Mobile Agents Platform  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile Agents is a new paradigm for distributed computing where security is very essential to the acceptance of this paradigm in a large scale distributed environment. In this paper, we propose protection mechanisms for mobile agents. In these mechanisms, the authentication of mobile a...

Leila Ismail

2008-01-01

373

Mobile prototyping with Axure 7  

CERN Document Server

This book is a step-by-step tutorial which includes hands-on examples and downloadable Axure files to get you started with mobile prototyping immediately. You will learn how to develop an application from scratch, and will be guided through each and every step.If you are a mobile-centric developer/designer, or someone who would like to take their Axure prototyping skills to the next level and start designing and testing mobile prototypes, this book is ideal for you. You should be familiar with prototyping and Axure specifically, before you read this book.

Hacker, Will

2013-01-01

374

Opportunistic mobility with multipath TCP  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Host mobility has traditionally been solved at the network layer, but even though Mobile IP has been standardised for 15 years, it hasn’t been supported by operators. IP’s double role as a location identif er and communication endpoint identif er brings a number of functional and performance problems. We argue that the best place to handle mobility is at the transport layer. While this is not a new argument, we believe that the emerging standard of Multipath TCP (MPTCP) can be used to sol...

2011-01-01

375

Security Threats in Prepaid Mobile  

Directory of Open Access Journals (Sweden)

Full Text Available Recent communications environment significantly expand themobile environment. Prepaid mobile services for 3G networksenables telecommunication to sign up new users by utilizing thelatest in converged billing technologies. The worldwide mobilecommunication market is exploding, and 50 percent ofsubscribers are expected to use prepaid billing . Prepaidservices are driving mobile communication into emergingmarkets such as South America, Eastern Europe, Asia, Africaand Gulf Countries. Prepaid phone service requires a user tomake payment before calling. It is quite common to get prepaidSIM cards on every major Network. This paper discuss aboutvarious prepaid techniques, challenges and countermeasures inprepaid mobile communication system .

Arshiya Begum

2013-04-01

376

Sustainable Mobility : Concerns from Practice  

DEFF Research Database (Denmark)

This paper combines strands of mobilities theory and planning theory, and develops a qualitative approach to look across emerging planning practices. By actively following 8 Danish urban and transport planners, over the course of 2 years, we learn how their practices have changed, inspired by mobility management, a concept aiming to reduce carbon emissions from transportation in western societies. The article focuses on how municipal planners formulate the role of mobility management activities organized around private companies, and how their practices are connected to wider ideas on planning.

Kjærulff, Aslak Aamot

377

Value Creation of Mobile Coupons  

Digital Repository Infrastructure Vision for European Research (DRIVER)

AbstractTitleValue Creation of Mobile CouponsBackgroundCoupons have been around for years in traditional paper form where they have for instance been found in grocery stores located directly by the product they offer a discount on. Lately, mobile phones have come to play a greater part of our lives where they are also getting integrated into activities we conduct. This has been of interest for the fast moving consumer goods (FMCG) industry where integration of the mobile phone has arisen to a...

Lundquist, Filip; Vera, George

2011-01-01

378

The benefits of mobile communications  

Science.gov (United States)

The benefits offered by mobile communications facilities are compared to conventionally priced networks. Sweden, the UK and Eire were taken as examples of markets that are respectively leading, growing and restrictive. The three major benefits identified are higher profits for commercial organizations from cost savings and improved productivity, the prevention and minimization of damage to life and property, and better social contacts for people isolated from communities. Case studies provide examples of the benefits different occupational and social groups acquire from mobile communications in each country. The studies were also used to project future growth in the uptake and range of mobile communications facilities offered in each country.

1985-04-01

379

Life cycle of mobile devices  

Directory of Open Access Journals (Sweden)

Full Text Available Article is devoted features of life cycle of mobile devices. The article highlighted a number of disadvantages associated with managing the life cycle of the product. Disadvantages include the orientation is not on the quality of mobile devices and their design, the obsolescence of digital products. The article drew attention to the need for process improvement life cycle management of mobile devices. For since this type of product is now the most popular among the population, consumers are interested, first of all, quality, and only then, look good.

T.V. Rohal

2011-12-01

380

76 FR 43689 - Draft Guidance for Industry and Food and Drug Administration Staff; Mobile Medical Applications...  

Science.gov (United States)

...Drug Administration Staff; Mobile Medical Applications; Availability AGENCY...use on mobile platforms (mobile applications or ``mobile apps...is calling mobile medical applications (mobile medical apps). This...

2011-07-21

 
 
 
 
381

Mobile Cosmetics Advisor: An Imaging Based Mobile Service  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Selecting cosmetics requires visual information and often benefits from the assessments of a cosmetics expert. In this paper we present a unique mobile imaging application that enables women to use their cell phones to get immediate expert advice when selecting personal cosmetic products. We derive the visual information from analysis of camera phone images, and provide the judgment of the cosmetics specialist through use of an expert system. The result is a new paradigm for mobile interactio...

Bhatti, Nina; Baker, Harlyn; Chao, Hui; Clearwater, Scott; Harville, Michael; Jain, Jhilmil; Lyons, Nic; Marguier, Joanna; Schettino, John; Su?sstrunk, Sabine

2010-01-01

382

Mobility is the Message : Experiments with Mobile Media Sharing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This thesis explores new mobile media sharing applications by building, deploying, and studying their use. While we share media in many different ways both on the web and on mobile phones, there are few ways of sharing media with people physically near us. Studied were three designed and built systems: Push!Music, Columbus, and Portrait Catalog, as well as a fourth commercially available system – Foursquare. This thesis offers four contributions: First, it explores the design space of co-pr...

Rost, Mattias

2013-01-01

383

Future Mobile Communications: LTE Optimization and Mobile Network Virtualization  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Providing QoS while optimizing the LTE network in a cost efficient manner is very challenging. Thus, radio scheduling is one of the most important functions in mobile broadband networks. The design of a mobile network radio scheduler holds several objectives that need to be satisfied, for example: the scheduler needs to maximize the radio performance by efficiently distributing the limited radio resources, since the operator's revenue depends on it. In addition, the scheduler has to guarantee...

2012-01-01

384

RESTful Mobile Application for Android : Mobile Version of Inspectera Online  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Web service-based mobile applications have become emergent in the recent years. Representational State Transfer (REST) architecture style introduced the concept of Resource Oriented Architecture (ROA), which has been widely used for building applications for all platforms. This master’s thesis designs and develops a Web service-based mobile application for Android platform following the constraints of REST architectural style. It also proposes an authentication model for RESTful application...

Arman, Sheikh Ali

2014-01-01

385

Mobile Energy Laboratory Procedures  

Energy Technology Data Exchange (ETDEWEB)

Pacific Northwest Laboratory (PNL) has been tasked to plan and implement a framework for measuring and analyzing the efficiency of on-site energy conversion, distribution, and end-use application on federal facilities as part of its overall technical support to the US Department of Energy (DOE) Federal Energy Management Program (FEMP). The Mobile Energy Laboratory (MEL) Procedures establish guidelines for specific activities performed by PNL staff. PNL provided sophisticated energy monitoring, auditing, and analysis equipment for on-site evaluation of energy use efficiency. Specially trained engineers and technicians were provided to conduct tests in a safe and efficient manner with the assistance of host facility staff and contractors. Reports were produced to describe test procedures, results, and suggested courses of action. These reports may be used to justify changes in operating procedures, maintenance efforts, system designs, or energy-using equipment. The MEL capabilities can subsequently be used to assess the results of energy conservation projects. These procedures recognize the need for centralized NM administration, test procedure development, operator training, and technical oversight. This need is evidenced by increasing requests fbr MEL use and the economies available by having trained, full-time MEL operators and near continuous MEL operation. DOE will assign new equipment and upgrade existing equipment as new capabilities are developed. The equipment and trained technicians will be made available to federal agencies that provide funding for the direct costs associated with MEL use.

Armstrong, P.R.; Batishko, C.R.; Dittmer, A.L.; Hadley, D.L.; Stoops, J.L.

1993-09-01

386

A comparative study on scapular static position between femaleswith and without generalized joint hyper mobility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Background: Generalized joint hyper mobility predisposes some individuals to a wide variety of musculoskeletal complaints. Given the critical role of scapular position in function of shoulder, the aim of this study was to compare scapular position between persons with and without general joint hyper mobility. Methods: By nonprobability sampling 30 hyper mobile persons at average of 22.86 ±2.77 years of age and 30 non hyper mobile persons (age 23.6 ± 2.73years) through a case-cont...

Afsun Nodehi Moghadam; Maryam Moghadam Salimee

2012-01-01

387

Mobile ATM Buffer Capacity Analysis  

CERN Document Server

This paper extends a stochastic theory for buffer fill distribution for multiple ``on'' and ``off'' sources to a mobile environment. Queue fill distribution is described by a set of differential equations assuming sources alternate asynchronously between exponentially distributed periods in ``on'' and ``off'' states. This paper includes the probabilities that mobile sources have links to a given queue. The sources represent mobile user nodes, and the queue represents the capacity of a switch. This paper presents a method of analysis which uses mobile parameters such as speed, call rates per unit area, cell area, and call duration and determines queue fill distribution at the ATM cell level. The analytic results are compared with simulation results.

Bush, S F; Evans, J B; Frost, V S; Bush, Stephen F.; Jagannath, Sunil; Evans, Joseph B.; Frost, Victor

1996-01-01

388

ASA24-Mobile (Under Development)  

Science.gov (United States)

A team of researchers at NCI in conjunction with a contract awarded to Westat, a research firm in Rockville, MD, is currently working to develop ASA24-Mobile. At this time, there is no projected completion date.

389

Mobility and access - ARCHIVE: Defra  

2, Indicator: Mobility*, Getting to school, Accessibility, Road accidents ... personal \\business, Education & children being escorted to education, Period, Walking .... \\person by: Change since: First year, Last year, Percentage change, Traffic light.

390

MOBILE GOVERNMENT: AN EMERGING DIRECTION  

Directory of Open Access Journals (Sweden)

Full Text Available The new developments in ICT along with the growth of mobile communication have developed new ways of interaction between the governments and the citizens. More and more governments are using information and communication technology especially Internet or web-based network, to pro-vide services between government agencies and citizens, businesses, employees and other nongovernmental agencies.The paper try to present an introduction on the characteristics of mobile government and some major issues that justify the necessity of the mobile government and identify the potential that it pos-sesses, but also the problems that concerns such an activity (trust, security risks, privacy risks.Adoption of mobile technologies by government organizations not only benefits the parties who use these services, but also has a positive impact in the productivity and costs of these organizations.

Mircea GEORGESCU

2010-01-01

391

Mobile Multi-System Overview  

Science.gov (United States)

At the time of this reporting, there are 2,589 rich mobile devices used at JPL, including 1,550 iPhones and 968 Blackberrys. Considering a total JPL population of 5,961 employees, mobile applications have a total addressable market of 43 percent of the employees at JPL, and that number is rising. While it was found that no existing desktop tools can realistically be replaced by a mobile application, there is certainly a need to improve access to these desktop tools. When an alarm occurs and an engineer is away from his desk, a convenient means of accessing relevant data can save an engineer a great deal of time and improve his job efficiency. To identify which data is relevant, an engineer benefits from a succinct overview of the data housed in 13+ tools. This need can be well met by a single, rich, mobile application that provides access to desired data across tools in the ops infrastructure.

Witoff, Robert J.; Doody, David F.

2012-01-01

392

Preserving mobility in older adults.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Age-related loss of strength contributes to impaired mobility and increases the risk of falls. Recent research has focused on 2 approaches to preventing age-related loss of strength--promoting physical activity and exercise (especially strength training) and using trophic factors to enhance muscle performance. Epidemiologic evidence strongly supports a role of regular physical activity in successful aging by preserving muscle performance, promoting mobility, and reducing fall risk. Randomized...

Buchner, D. M.

1997-01-01

393

Comparing Architectures of Mobile Applications  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This article describes various advantages and disadvantages of SMS, WAP, J2ME and Windows CE technologies in designing mobile applications. In defining the architecture of any software application it is important to get the best trade-off between platform's possibilities and design requirements. Achieving optimum software design is even more important with mobile applications where all computer resources are limited. Therefore, it is important to have a comparative analysis ...

Fertalj, Kresimir; Horvat, Marko

2007-01-01

394

Tracking Games in Mobile Networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Users of mobile networks can change their identifiers in regions called mix zones in order to defeat the attempt of third parties to track their location. Mix zones must be deployed carefully in the network to reduce the cost they induce on mobile users and to provide high location privacy. Unlike most previous works that assume a global adversary, we consider a local adversary equipped with multiple eavesdropping stations. We study the interaction between the local adversary deploying eavesd...

Humbert, Mathias; Manshaei, Mohammadhossein; Freudiger, Julien; Hubaux, Jean-pierre

2010-01-01

395

Mobile Certificate based Healthcare Services  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This thesis work is a study of how the Mobile Signature Service (MSS) standard can be used in IT services of health centres. The study includes proposals of various mobile certificate based services that are appropriate for health centres and how these services can be realized. It is also described what is required from health centre users and health centre personnel to use the IT services.

Yazdani, Farzan

2012-01-01

396

Minimal mobile human computer interaction  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In the last 20 years, the widespread adoption of personal, mobile computing devices in everyday life, has allowed entry into a new technological era in Human Computer Interaction (HCI). The constant change of the physical and social context in a user's situation made possible by the portability of mobile devices means that the user's attention becomes limited. This can negatively impact the user experience. To deal with this problem, this thesis draws from two developments in HCI, context-awa...

Ali, A. El

2013-01-01

397

Event management for mobile users  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This technical report presents the results of the project "Event Management for Mobile Users", a research cooperation between Universität Stuttgart and Microsoft. In Vienna, Microsoft chief executive Bill Gates recently expressed his vision of a seamless interaction of different computing devices, from PC to mobile phone, that proactively support the users wherever they go. Among other things, he said: "For example, if you want to be notified about something that's changing, that's impor...

Bauer, Martin

2004-01-01

398

Capital Mobility in African Countries  

Digital Repository Infrastructure Vision for European Research (DRIVER)

It is well known that one of the important aspects of achieving sustainable development is to preserve
macroeconomic stability, which is closely related to the extent of capital mobility. Given the importance of the
subject for open economies, this paper examines the degree of capital mobility for African countries by using
among other methodologies the Feldstein- Horioka coefficients. To determine those coefficients, we use time
series dat...

Solo Padawassou

2012-01-01

399

MOBILE BANKING AND SUSTAINABLE GROWTH  

Directory of Open Access Journals (Sweden)

Full Text Available The paper discusses about awareness of mobile banking services and their possible contribution towards sustainable growth. This study attempts to look into the issues regarding mobile banking services and their possible contribution in financial inclusion in India. With the help of this study author tries to focus those areas where banks can provide these mobile banking services. If this service is adopted in a positive manner it can drastically change the scenario of Financial Inclusion. For a successful financial inclusion i.e., inclusive growth, in this era, combination of both the services i.e., banking as well as mobile is very much required. Mobile banking which can be termed as virtual banking can do wonders for the economy, because these days growth in economy is possible with the help of financial inclusion and in current scenario, statistics reveals that it is very easy with the help of mobile banking. This study has been done in two phases. First phase discusses about awareness of M-banking services and Second phase discusses about possible contribution of mobile banking towards financial inclusion. M-banking in India, as assessed by the govt. can work as a potent tool for financial inclusion, is yet to clear many hurdles before it can fulfill its objective of reaching the unbanked population. In fact including rural subscribers in the banking net can help in inclusive growth, as it not very difficult to go for a mobile phone rather than going for a computer in rural areas. This service can do wonders if implemented effectively and sincerely. If any service is provided, there are always two sides, supply side and demand side. M-banking in India, as assessed by the govt. can work as a potent tool for financial inclusion, is yet to clear many hurdles before it can fulfill its objective of reaching the unbanked population. If this service is adopted in a positive manner it can drastically change the scenario of Financial Inclusion.

Atul Srivastava

2013-01-01

400

Communication Paradigms for Mobile Computing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The widespread deployment and use of wireless data communications causes the need for middleware to interconnect the components that comprise a mobile application. Middleware for mobile computing must deal with the increased complexity that comes with a dynamically changing population of application components and the resulting dynamic reconfiguration of the connections between these components. This paper presents an overview of two communication paradigms that are well suited...

Meier, Rene

2002-01-01

 
 
 
 
401

Bendix Mobility Test Article (MTA)  

Science.gov (United States)

A concept of a possible Lunar Roving Vehicle (LRV) built by the Bendix Corporation for NASA's Marshall Space Flight Center (MSFC). This Mobility Test Article (MTA) is being inspected by a Bendix technician. The data provided by the MTA helped in designing the LRV, developed under the direction of MSFC. The LRV was designed to allow Apollo astronauts a greater range of mobility during lunar exploration missions.

1965-01-01

402

Grumman Mobility Test Article (MTA)  

Science.gov (United States)

This Mobility Test Article (MTA) was a concept of a possible dual mode Lunar Roving Vehicle (LRV) built by the Grumman Industries for NASA's Marshall Space Flight Center (MSFC). The data provided by the MTA helped in designing the Lunar Roving Vehicle (LRV), developed under the direction of MSFC. The LRV was designed to allow Apollo astronauts a greater range of mobility during lunar exploration missions.

1965-01-01

403

Mobility in geometrically confined membranes  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Lipid and protein lateral mobility is essential for biological function. Our theoretical understanding of this mobility can be traced to the seminal work of Saffman and Delbrück, who predicted a logarithmic dependence of the protein diffusion coefficient (i) on the inverse of the size of the protein and (ii) on the “membrane size” for membranes of finite size [Saffman P, Delbrück M (1975) Proc Natl Acad Sci USA 72:3111—3113]. Although the experimental proof of the first prediction is ...

Domanov, Yegor A.; Aimon, Sophie; Toombes, Gilman E. S.; Renner, Marianne; Quemeneur, Franc?ois; Triller, Antoine; Turner, Matthew S.; Bassereau, Patricia

2011-01-01

404

Cellular calcium mobilization  

International Nuclear Information System (INIS)

In vascular and other smooth muscles, occurrence of intracellular Ca stores which can be mobilized to support contraction may be a general phenomenon. The Ca stores are characterized by the requirement for release by high concentrations of agonists acting on plasma membrane receptors, by the failure of the released Ca2+ to recycle to the store, by the occurrence of rapid refilling of the store from the extracellular space, and by disappearance of the store when the plasma membrane is made leaky by saponin. In contrast to agonist-released Ca stores, those released by caffeine to support contraction in Ca2+-free solutions are more slowly lost and refilled, are not always emptied when the agonist-related store is emptied, and do not disappear after saponin treatment. Stores released by agonists have been suggested to be in the endoplasmic reticulum near the plasma membrane or at the inner aspect of the plasma membrane related to high affinity, pH-dependent Ca-binding sites. Caffeine-released stores are assumed to be in endoplasmic reticulum. Continued exposure of some tissues to Ca2+-free solutions unmasks what is considered to be a recycling Ca store releasable by agonists. Release of Ca2+ and its reaccumulation in this store appear to be slower than at the nonrecycling store. The contractions which persist for many hours in Ca2+-free solution are inhibited temporarily by Ca2+ restoration. Existence of a recycling store of releasable Ca2+ requires occurrence of mechanisms to abolish Ca2+ extrusion or leak-out of the cell and to ensure recycling to the same store

1984-01-01

405

Sampling Theory: From Shannon Sampling Theorem to Compressing Sampling  

Digital Repository Infrastructure Vision for European Research (DRIVER)

It is known that sampling theory lies at the heart of signal processing devices and communication systems. This study presents an account of the current state of sampling theorem after Shannon’s formulation of the sampling theorem. Our emphasis is on some new tends of sampling theory in recent decade. At first, the problem of vector sampling expansion is argued. Secondly, signal reconstruction from local averages is showed. Thirdly, the issue of sampling theorem in the wavelet subspaces is ...

Wu Guochang; Zhang Yadong; Yang Xiaohui

2010-01-01

406

Securing Mobile Cloud Using Finger Print Authentication  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile cloud computing becomes part of mobile usersdaily life transactions. Mobile devices with Internetcapabilities have increased the use of mobile clouding computing. Due to hardware limitations in mobiledevices, these devices can't install and run applications require heavy CPU processing or extensivememory. Cloud computing allows mobile users to synchronize their data with remote storage and utilizeapplications require heavy CPU processing or extensive memory such as Microsoft Office or AdobePhotoshop, as they run in a desktop computer.The combination of cloud computing and mobile computing introduces mobile cloud computing, which alsopresent new issues of security threats such as unauthorized access to resources exist in mobile cloud.Protecting mobile cloud computing from illegitimateaccess becomes an important concern to mobile users.This paper proposes and implements a new user authentication mechanism of mobile cloud computingusing fingerprint recognition system. Fingerprint images of mobile users can be captured and processedusing mobile phone camera to access mobile cloud computing . The implementation of the proposedsolution in different mobile operating systems anddevices show security enhancement in mobile cloudcomputing with accepted performance level

IehabALRassan

2013-11-01

407

The mobile laboratory for radiation monitoring of the environment  

International Nuclear Information System (INIS)

Three mobile laboratory for radiation monitoring of the environment of the NPP Mochovce were bought and they are there described. Each laboratory, which consists from terrain automobile, contains: the monitors of dose rate, the sampling unit for aerosols and iodine, the gamma-spectroscopic system with personal computer and printer, the contamination monitors, the emergency response kit; the decontamination unit, the electric energy supply unit, the global positioning system (GPS), as well as the system for data transferring and computing system. The operation of the mobile laboratory for radiation monitoring of the environment is described

2000-05-17

408

Pseudo-Random Sequence Modifications for Ion Mobility Orthogonal Time of Flight Mass Spectrometry  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Due to the inherently low duty cycle of ion mobility spectrometry (IMS) experiments that sample from continuous ion sources, a range of experimental advances have been developed to maximize ion utilization efficiency. The use of ion trapping mechanisms prior to the ion mobility drift tube has demonstrated significant gains over discrete sampling from continuous sources; however, these technologies have traditionally relied upon a signal averaging to attain analytically relevant signal-to-nois...

Clowers, Brian H.; Belov, Mikhail E.; Prior, David C.; Danielson, William F.; Ibrahim, Yehia; Smith, Richard D.

2008-01-01

409

Bi-Modal Biometric Authentication on Mobile Phones in Challenging Conditions  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper examines the issue of face, speaker and bi-modal authentication in mobile environments when there is significant condition mismatch. We introduce this mismatch by enrolling client models on high quality biometric samples obtained on a laptop computer and authenticating them on lower quality biometric samples acquired with a mobile phone. To perform these experiments we develop three novel authentication protocols for the large publicly available MOBIO database. We evaluate state-of...

Khoury, Elie; El Shafey, Laurent; Mccool, Chris; Gu?nther, Manuel; Marcel, Se?bastien

2013-01-01

410

Acceptance of Mobile Banking Services in Makassar: A Technology Acceptance Model (TAM) Approach  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile banking services is a relatively new banking services. This study aims to look customer acceptance of mobile banking services in Makassar and the influencing factors using the Technology Acceptance Model (TAM) framework. The design of this study is causal and descriptive with sample of 180 customers selected by convenience and accidental sampling. Data were collected through structured interviews with a questionnaire. The results showed that (1) Perceived Ease of Use signif...

Munir, Abdul Razak

2008-01-01

411

Factors Influencing the Quality of Mobile Applications  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile applications are becoming increasingly used. Mobile devices are becoming indispensable for the user. In the material are claiming the sales of mobile devices internationally and the use of mobile applications compared to traditional internet use on desktop systems for the United States. Are presented influences the quality of mobile applications and based on these influencing factors built a model of choice for optimal application of mobile applications and traditional desktop application. At the end of the material presented methods to increase quality by tracking the influence factors during the development of mobile applications.

Alin ZAMFIROIU

2014-01-01

412

Device selection algorithm for mobile traffic offloading  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Aim of thesis is to reduce the data traffic from mobile network by exploiting Ad-hoc modes of communication. This can be achieved by sending message to few mobile nodes which will forward data to rest of the mobile nodes via Ad-hoc communication. This thesis focuses on selection of those few mobile nodes (Target Set) which will receive message directly from mobile network and can effectively reduce the data traffic on mobile network by forwarding that message to many other mobile nodes via...

Mahajan, Sumeet

2013-01-01

413

Mobile Enterprise Resource Planning: New Technology Horizons  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile ERP is not per se something new or even special. It is an issue growing to become more and more important and enabling mobility due to the technological revolution and more so due to the mobile users. Mobility is about how businesses can provide a better infrastructure through mobile applications and services. While ERP was an important step taken by many firms, provision of services through mobile technologies is now inevitable. Together with other trends that are changing the enterprise applications landscape, ERP systems have to support the mobile behavior of their users. The paper explores the mobile applications landscape and proposes an architecture model for the mobile services starting from the necessary functionalities for a portal of mobile services. Besides the general architecture of the portal, a set of minimal functionalities for implementation is proposed in order to ensure the promotion and use of services.

Octavian Dospinescu

2008-07-01

414

NetInf Mobile Node Architecture and Mobility Management based on LISP Mobile Node  

CERN Multimedia

In this paper, we propose an architecture for Network of Information mobile node (NetInf MN). It bears characteristics and features of basic NetInf node architecture with features introduced in the LISP MN architecture. We also introduce a virtual node layer for mobility management in the Network of Information. Therefore, by adopting this architecture no major changes in the contemporary network topologies is required. Thus, making our approach more practical.

Saleem, Muhammad Shoaib; Zeghlache, Djamal

2010-01-01

415

Mobile Application for Secure Healthcare System  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Usage of mobile applications and wireless networks is growing rapidly at different sectors in the world. Mobile healthcare application is devotedly accepted by the healthcare organizations and also by patients. The reasons behind accepting mobile healthcare applications are as user friendly, reliable, low cost, time efficient, mobility etc. Though the use of mobile applications is rising day by day in the healthcare sectors still those applications are not completely secure to prevent disclos...

Yesmin, Sabina

2013-01-01

416

Syncing Mobile Applications with Cloud Storage Services  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Cloud data storage is an option available almost on any mobile platform. Nowadays, there are multiple solutions for syncing data in mobile applications. The aim of the paper is to analyze mobile application developers’ possibilities for syncing content using major free cloud storage providers. The paper describes the cloud computing in mobile context and highlights cloud providers APIs. Experimental results are analyzed in order to identify the best cloud storage solution for syncing mobile...

Pocatilu, Paul; Boja, Catalin; Ciurea, Cristian

2013-01-01

417

Building Database-Powered Mobile Applications  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Almost all mobile applications use persistency for their data. A common way for complex mobile applications is to store data in local relational databases. Almost all major mobile platforms include a relational database engine. These databases engines expose specific API (Application Programming Interface) to be used by mobile applications developers for data definition and manipulation. This paper focus on database-based application models for several mobile platforms (Android, Symbian, Wind...

Pocatilu, Paul

2012-01-01

418

Mobility and lifestyle of small town inhabitans  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The paper deals with the question how does the place of residence influence mobility and how is mobility part of daily activities of the population in small and big towns of Slovenia. For better explanation of the question four types of lifestyle has been defined: from very mobile with a wide home-range to less mobile with the small home-range. It can be seen that there is no big difference in mobility of inhabitants of small and big towns.

2012-01-01

419

Oilfield GIS Service Based on Mobile Platform  

Digital Repository Infrastructure Vision for European Research (DRIVER)

With the development of mobile technology, especially the development of 3G and mobile IP, the computational capacity of handsets is becoming more and more powerful, which provides a new method to solve the difficulties encountered in real time GIS accessing caused by the characteristics of mobility and remoteness of fieldwork in oilfield. On the basis of studying in-depth on the technologies of J2ME platform, Mobile SVG and mobile data transfer, etc., and in accordance with the actual situat...

Lingling Guo; Man Yuan; Shaobin Hu

2010-01-01

420

Virtual Enterprises, Mobile Markets and Volatile Customers  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Recently, several new mobile virtual network operators (MVNOs) have entered the European mobile telecommunications markets. These service providers do not own a mobile network, but instead they buy capacity from other companies. Because these virtual operators do not possess an infrastructure of their own, they have signed contracts with incumbent mobile operators with a network. The growth of these MVNOs which use leased network capacity from existing carriers, presents the incumbent mobile ...

2005-01-01

 
 
 
 
421

Mobile social networking in theory and practice  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile social networks have gained the attention of the media, academy and mobile market. Despite of the robust tradition of network and community studies, mobile social networks are often addressed improperly. This paper presents a theoretical framework to study mobile social networking and examines the design implications of results of an exploratory study conducted with a group of 18 young adults in Finland. The findings of this study indicate that the quality of mobile applications offeri...

Lugano, Giuseppe University Of Jyv?skyl?

2008-01-01

422

Integrability and Interoperability of Mobile Applications  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Features of mobile applications are presented. The characteristics of quality for the mobile applications are described. The categories of mobile devices are presented. The restrictions for all mobile devices categories are presented. Treated separately accessing integrability factors influence the level or growth paths and measurement indicators. Establish ways to integrate information through interfaces and appearances by database and by calling. The interoperability characteristic of mobil...

Zamfiroiu, Alin

2012-01-01

423

3D Mobile Game Engine Development  

Digital Repository Infrastructure Vision for European Research (DRIVER)

With the rapid development of mobile games, more rich and colorful mobile games are demanded. While during the development of mobile games, a good mobile game engine is a key technology, since it can integrate some important functions in a framework. In my thesis, the objective is to design the framework of 3D mobile game engine. For completing the research, I put forward specific three research questions, and through understanding and learning the knowledge of professional technologies and t...

2012-01-01

424

Sampling Theory: From Shannon Sampling Theorem to Compressing Sampling  

Directory of Open Access Journals (Sweden)

Full Text Available It is known that sampling theory lies at the heart of signal processing devices and communication systems. This study presents an account of the current state of sampling theorem after Shannon’s formulation of the sampling theorem. Our emphasis is on some new tends of sampling theory in recent decade. At first, the problem of vector sampling expansion is argued. Secondly, signal reconstruction from local averages is showed. Thirdly, the issue of sampling theorem in the wavelet subspaces is investigated and some results are given. At last, compressed sampling and its two principles are reviewed.

Yang Xiaohui

2010-01-01

425

LIMITED SPEECH RECOGNITION FOR CONTROLLING MOVEMENT OF MOBILE ROBOT  

Directory of Open Access Journals (Sweden)

Full Text Available The mobile robot is controlled by using speech signal. The input speech signal is given through micro phone. Speech extractor is used to convert the given speech signal to word signal. The extracted word signal is recognized by using the speech recognizer. The word signal generates the command. According to the generated command the various operations were performed in the mobile robot like move forward, backward, left and right, clockwise rotate, anticlockwise rotate, open, close, up, down, and stop. The methods used in this research areLinear Predictive Coding(LPCand Hidden Markow Model(HMM.LPC is used to extract word data from speech signal.HMM is used to recognize the word pattern data, which are extracted from a speech signal .Sampling rate of the speech signal is 8kHz and the speech signal is sampled for 0.5 seconds. In our project each command is sampled for 20 times.

A.Vijayaraj

2010-10-01

426

Modeling and analysis of mobility management in mobile communication networks.  

Science.gov (United States)

Many strategies have been proposed to reduce the mobility management cost in mobile communication networks. This paper studies the zone-based registration methods that have been adopted by most mobile communication networks. We focus on two special zone-based registration methods, called two-zone registration (2Z) and two-zone registration with implicit registration by outgoing calls (2Zi). We provide a new mathematical model to analyze the exact performance of 2Z and 2Zi. We also present various numerical results, to compare the performance of 2Zi with those of 2Z and one-zone registration (1Z), and show that 2Zi is superior to 2Z as well as 1Z in most cases. PMID:24883368

Baek, Woon Min; Yoon, Ji Hyun; Kim, Chesoong

2014-01-01

427

Drift-mobility measurements and mobility edges in disordered silicons  

Energy Technology Data Exchange (ETDEWEB)

Published electron and hole drift-mobility measurements in hydrogenated amorphous silicon (a-Si:H), amorphous silicon alloys (a-SiGe:H and a-SiC:H), and microcrystalline silicon ({mu}c-Si:H) are analysed in terms of the exponential bandtail trapping model. A three-parameter model was employed using an exponential bandtail width {delta}E, the band mobility {mu}{sub 0}, and the attempt-to-escape frequency {nu}. Low-temperature measurements indicate a value around {mu}{sub 0} = 1 cm{sup 2} V{sup -1} s{sup -1} for both the conduction and valence bands over the entire range of materials. High temperature-measurements for electrons in a-Si:H suggest a larger value of 7 cm{sup 2} V{sup -1} s{sup -1}. These properties and those of the frequency {nu} are discussed as possible attributes of a mobility edge.

Schiff, E A [Department of Physics, Syracuse University, Syracuse, NY 13244-1130 (United States)

2004-11-10

428

Sampling Method for Welding Fumes and Toxic Gases in Malaysian Small and Medium Enterprises (SMEs  

Directory of Open Access Journals (Sweden)

Full Text Available In 2009 there were 28,840 small and medium enterprises (SMEs in Malaysia which represented 94.2 % of the total establishments in the manufacturing sector. Job tasks in manufacturing sectors above all involve welding processes. The issues in SMEs mainly resolve around poor working conditions contributing to worker’s safety and health problem. Welding fumes and toxic gas assessment in SMEs welding workplace is essential in order to ensure the minimum level of exposure is maintained as required by the prevailing standards. This paper outlines the methodology for fumes and toxic gas sampling by taking into account analytical method currently available for analysis in the government accredited laboratory. The proposed methods are divided into two; the pilot test and the actual measurement. Standardize sampling method using sampling pump along with direct reading measurement are consider in both the pilot test and actual measurement. The proposed sampling method hopefully will benefit researcher, stakeholders or SMEs by giving guidance on the suitable method for welding workplace assessment.

Azian Hariri

2012-06-01

429

Continuously Connected With Mobile IP  

Science.gov (United States)

Cisco Systems developed Cisco Mobile Networks, making IP devices mobile. With this innovation, a Cisco router and its connected IP devices can roam across network boundaries and connection types. Because a mobile user is able to keep the same IP address while roaming, a live IP connection can be maintained without interruption. Glenn Research Center jointly tested the technology with Cisco, and is working to use it on low-earth-orbiting research craft. With Cisco's Mobile Networks functionality now available in Cisco IOS Software release 12.2(4)T, the commercial advantages and benefits are numerous. The technology can be applied to public safety, military/homeland security, emergency management services, railroad and shipping systems, and the automotive industry. It will allow ambulances, police, firemen, and the U.S. Coast Guard to stay connected to their networks while on the move. In the wireless battlefield, the technology will provide rapid infrastructure deployment for U.S. national defense. Airline, train, and cruise passengers utilizing Cisco Mobile Networks can fly all around the world with a continuous Internet connection. Cisco IOS(R) Software is a registered trademark of Cisco Systems.

2002-01-01

430

MPEG streaming over mobile Internet  

Science.gov (United States)

MPEG streaming over Mobile Internet leads to degradation of MPEG video quality. When a handoff of a mobile node (MN) occurs, it is quite difficult to guarantee seamless video quality due to the change of routing path towards the MN. In this paper, we propose a new scheme, MPEG streaming over Concatenation and Optimization for Reservation Path (CORP), to guarantee QoS of MPEG streaming service in the Mobile Internet. When a handoff of a MN occurs, the CORP extends the existing reservation path, which was established using RSVP between a server and a MN, to a new Base Station (BS) that the MN currently connected to, instead of making a new RSVP session between the server and the MN. To demonstrate practicality of the proposed scheme, we built a prototype system which provides the MPEG-1 Video and Audio on demand over Mobile Internet using Mobile IP and IEEE 802.11b wireless LAN. Our experiment shows that the proposed scheme significantly improves the peak signal-to-noise rate (PSNR) of MPEG streaming video. Also, we analyzed the video quality of our scheme with respect to TCP and UDP transport protocols.

Lee, Myungjin; Lee, Kyounghee; Thang, Truong C.; Thanh, Nguyen N.; Kim, MyungChul; Ro, Yong M.; Lee, Jong H.

2002-04-01

431

Advances in stem cell mobilization.  

Science.gov (United States)

Use of granulocyte colony stimulating factor (G-CSF)-mobilized peripheral blood hematopoietic progenitor cells (HPCs) has largely replaced bone marrow (BM) as a source of stem cells for both autologous and allogeneic cell transplantation. With G-CSF alone, up to 35% of patients are unable to mobilize sufficient numbers of CD34 cells/kg to ensure successful and consistent multi-lineage engraftment and sustained hematopoietic recovery. To this end, research is ongoing to identify new agents or combinations which will lead to the most effective and efficient stem cell mobilization strategies, especially in those patients who are at risk for mobilization failure. We describe both established agents and novel strategies at various stages of development. The latter include but are not limited to drugs that target the SDF-1/CXCR4 axis, S1P agonists, VCAM/VLA-4 inhibitors, parathyroid hormone, proteosome inhibitors, Gro?, and agents that stabilize HIF. While none of the novel agents have yet gained an established role in HPC mobilization in clinical practice, many early studies exploring these new pathways show promising results and warrant further investigation. PMID:24476957

Hopman, Rusudan K; DiPersio, John F

2014-01-01

432

Studying Mobile Media Cultural Technologies, Mobile Communication, and the IPhone  

CERN Multimedia

The iPhone represents an important moment in both the short history of mobile media and the long history of cultural technologies. Like the Walkman of the 1980s, it marks a juncture in which notions about identity, individualism, lifestyle and sociality require rearticulation. this book explores not only the iPhone's particular characteristics, uses and "affects," but also how the "iPhone moment" functions as a barometer for broader patterns of change. In the iPhone moment, this study considers the convergent trajectories in the evolution of digital and mobile culture, and

Hjorth, Larissa; Richardson, Ingrid

2012-01-01

433

Üniversite Ö?rencilerinin Mobil Reklamlara Yönelik Tutumlar?n?n ?zinli Pazarlama Ekseninde ?ncelenmesi(Attitudes of University Students’ Towards Mobile Advertising within the Scope of Permission Marketing  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile advertising, which means delivering promotion messages directly to mobile phones with different applications, has been the frequently preferred method by the companies in recent years. The rapid increase in the use of mobile phones in our country has increased the interest in this method even further and the use of mobile phones for marketing purposes has become more common.Within the scope of the survey, the attitudes of students towards mobile advertisements are measured with a field research on 800 students studying at Mersin and Celal Bayar Universities. In addition, it has also been researched if there is a difference between the students’ attitudes of these two universities regarding the related information, entertainment, reliability, personalization and irritation dimensions of mobile advertising or not. As a result of the independent two-sample t test, it was concluded that there was a significant difference between the two groups only regarding the entertainment and irritation dimensions of mobile advertising.

Ay?e ?AH?N

2012-01-01

434

Making Light Rail Mobilities  

DEFF Research Database (Denmark)

Denne Ph.d. afhandling bidrager med et kvalitativt perspektiv pĂĄ letbaner som et strategisk byudviklingsværktøj i middelstore Europæiske byer (100.000- 350.000 indbyggere). Afhandlingen skal ses som et bidrag til debatten om letbanesystemer og er tiltænkt som et supplement til de mere tekniske og økonomiske analyser af sĂĄdanne systemer. Ph.d. afhandlingen er resultatet af et 3 ĂĄrigt samarbejde mellem COWI A/S afdelingen for By og trafikplanlægning i Aalborg, samt Aalborg Universitet, Institut for Arkitektur og Medieteknologi. Igennem de senere ĂĄr er letbaneprojekter blevet introduceret som strategiske byudviklingsværktøjer i de større danske byer. Der er derfor en særlig bevĂĄgenhed pĂĄ potentialet, værdien og effekterne af sĂĄdanne systemer. Dette Ph.d. projekt er initieret af behovet for at skabe mere viden om letbanens potentialer i en bystrategisk sammenhæng, og er herved rettet mod en kvalitativ analyse af letbanesystemer i middelstore Europæiske byer, der i størrelse er sammenlignelige med de danske letbaneprojekter. Ved at tillægge et kvalitativt perspektiv anskuer afhandlingen letbane projekter som â??mere end transport projekterâ??, og afhandlingen søger hermed, at skabe indsigt i den historie, de rationaler og politiske ideologier der har været styrende for valget om at implementere letbane i mellemstore europæiske byer. Teoretisk er afhandlingen funderet i det â??ny mobilitets paradigmeâ??, hvorigennem det argumenteres for, at det er vigtigt ikke alene at fokusere pĂĄ de tekniske of fysiske aspekter af mobilitet, men ogsĂĄ de politiske, økonomiske, sociale og kulturelle relationer hvori mobilitet og mobile teknologier er indlejret. Empirisk er afhandlingen funderet i case studier i fire mellemstore europæiske byer: Bergen i Norge, Angers i Frankrig, Bern i Schweiz samt Freiburg i Tyskland. Disse cases illustrerer 4 byer, 4 forskellige historier, 4 planlægningstilgange, 4 letbanesystemer og 4 letbanevisioner. FormĂĄlet med at inddrage forskellige nationale kontekster er at analysere hvilke samfundsmæssige forholdder har været styrende for: 1. beslutningen om at implementere et letbanesystem, 2. det lokale koncept, herunder udformning og design af systemet og dets indpasning og pĂĄvirkning i bymiljøet. Ph.d. afhandling tager sĂĄledes afsæt i følgende problemformulering og underspørgsmĂĄl: Hvordan er letbaneprojekter politisk of kulturelt produceret, samt materielt og rumligt praktiseret i mellemstore europæiske byer, og hvordan kan viden herom anvendes i fremtidige beslutningsprocesser for letbaneprojekter? â?˘1. Hvorfor implementeres letbanesystemer i udvalgte mellemstore europæiske byer, og hvad er de bagvedliggende rationaler herfor? â?˘2. Hvordan har letbaneprojekter medvirket til at ændre bymiljø, urbane strukturer samt mobilitetshierarkier i de udvalgte cases, og hvilke faktorer har haft betydning for valg af koncept og design? â?˘3. Hvordan kan den viden der udledes af ovenstĂĄende spørgsmĂĄl anvendes i fremtidige beslutningsprocesser for letbaneprojekter?

Olesen, Mette

2014-01-01

435

Mobility screening in the elderly and resulting referral.  

Science.gov (United States)

The aims of this study were to test the usefulness of the Royal College of General Practitioners' (RCGP) mobility screening questionnaire in Irish general practice and to use it to assess the level of mobility problems in the over-75 year old population. Questionnaire screening survey in six faculty areas of the Irish College of General Practitioners(ICGP) well-spread geographically to be representative of the Irish population. Participants were a random sample of 627 people aged 75 years or over, from the General Medical Services list of 92 volunteer general practitioners. The Royal College of General Practitioners' screening questionnaire for mobility was administered by each person's doctor. Suggested interventions were also noted. 92% felt able to get around the house independently, with 78% able to manage stairs independently. The commonest aid to mobility was a stick, used by 27%. Mental impairment was closely associated with inability to get around the house (86% of those not independent around the house scored less than 8 on the Abbreviated Mental Test Score). Analysis of referral patterns indicated possible deficiencies in the availability of physiotherapy in certain areas. The RCGP mobility screening questionnaire was easy to use, and helpful in detecting problems which might require attention. PMID:10360098

Dobbs, F; Prosser, S; Maguire, N

1999-01-01

436

The Coverage Bias of Mobile Web Surveys Across European Countries  

Directory of Open Access Journals (Sweden)

Full Text Available In recent years, mobile devices are increasingly considered to access the Word Wide Web. Several survey research organizations are about to use this technology as a means of conducting self-administered surveys. Among other advantages it allows survey researchers to overcome the lack of random selection procedures in online surveys since it provides the opportunity to use RDD-like probability sampling of cell phone numbers. However, low penetration rates of smart phones raise concerns that the coverage bias of a mobile Web survey might in fact harm survey estimates considerably. In this paper, we report results of a simulation study on the coverage bias of the mobile Web population across European countries. Based on a subset of the Eurobarometer data we estimate the relative coverage bias of the smart phone population in contrast to the general population. Even though we observed an incline of the mobile Web penetration rates over the course of the past years, coverage biases were still considerably large for socio-demographic variables. Nevertheless, in a few European countries mobile Web coverage biases are already smaller than the coverage biases of the population with traditional landline Internet access.

Marek Fuchs

2009-01-01

437

Making Palm Print Matching Mobile  

CERN Document Server

With the growing importance of personal identification and authentication in todays highly advanced world where most business and personal tasks are being replaced by electronic means, the need for a technology that is able to uniquely identify an individual and has high fraud resistance see the rise of biometric technologies. Making biometric based solution mobile is a promising trend. A new RST invariant square based palm print ROI extraction method was successfully implemented and integrated into the current application suite. A new set of palm print image database captured using embedded cameras in mobile phone was created to test its robustness. Comparing to those extraction methods that are based on boundary tracking of the overall hand shape that has limitation of being unable to process palm print images that has one or more fingers closed, the system can now effectively handle the segmentation of palm print images with varying finger positioning. The high flexibility makes palm print matching mobile ...

Fang, Li; Chian, Cheng Shao

2009-01-01

438

Dose reconstruction using mobile phones.  

Science.gov (United States)

Electronic components inside mobile phones are regarded as useful tools for accident and retrospective dosimetry using optically stimulated luminescence (OSL) and thermoluminescence. Components inside the devices with suitable properties for luminescence dosimetry include, amongst others, ceramic substrates in resistors, capacitors, transistors and antenna switches. Checking the performance of such devices in dosimetric experiments is a crucial step towards developing a reliable dosimetry system for emergency situations using personal belongings. Here, the results of dose assessment experiments using irradiated mobile phones are reported. It will be shown that simple regenerative dose estimates, derived from various types of components removed from different mobile phone models, are consistent with the given dose, after applying an average fading correction factor. PMID:21062806

Beerten, K; Reekmans, F; Schroeyers, W; Lievens, L; Vanhavere, F

2011-03-01

439

Secret Key Generation From Mobility  

CERN Multimedia

We consider secret key generation from relative localization information of a pair of nodes in a mobile wireless network in the presence of a mobile eavesdropper. Our scheme consists of two phases: in the first phase, legitimate node pair exchanges beacon signals to establish localization information based on noisy observations of these beacons; in the second phase, nodes generate secret key bits via a public discussion. Our problem can be categorized under the source models of information theoretic secrecy, where the distance between the legitimate nodes acts as the observed common randomness. We characterize the achievable secret key bit rate in terms of the observation noise variance at the legitimate nodes and the eavesdropper. This work provides a framework that combines information theoretic secrecy and wireless localization, and proves that th