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1

Direct reading dosimeter  

International Nuclear Information System (INIS)

This invention is a direct reading dosimeter which is light, small enough to be worn on a person, and measures both dose rates and total dose. It is based on a semiconductor sensor. The gate threshold voltage change rather than absolute value is measured and displayed as a direct reading of the dose rate. This is effected by continuously switching the gate of an MOS transistor from positive to negative bias. The output can directly drive a digital readout or trigger an audible alarm. The sensor device can be a MOSFET, bipolar transistor, or MOSFET capacitor which has its electrical characteristics change due to the trapped charge in the insulating layer of the device

2

Direct reading spectrochemical analysis of nuclear graphite  

International Nuclear Information System (INIS)

A description is given about the application of a direct-reading spectrometer the Quantometer, to the determination of boron. calcium, iron, titanium and vanadium in nuclear grade graphite. for boron the powdered sample is mixed with 1% cupric fluoride and excited in a 10-amperes direct current arc and graphite electrodes with a crater 7 mm wide and 10 mm deep. For the other elements a smaller crater has been used and dilution with a number of matrices has been investigated; the best results are achieved by employing 25% cupric fluoride. The sensitivity limit for boron is 0,15 ppm. (Author) 21 refs

3

Direct reading fast microwave interferometer for EBT  

International Nuclear Information System (INIS)

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

4

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.

5

Direct-reading spectrochemical analysis of soils and plant ashes  

International Nuclear Information System (INIS)

Two different techniques haves been tried to determine trace elements in soils and plant ashes using a direct reading spectrometer :1) the samples are mixed with graphite powder and excited on 2x4 mm graphite rods with a 13 amperes direct current arc: 2) a mixture of graphite and strontium carbonate is used as spectrochemical buffer, and 2x6 mm cup graphite rods in a 10 amperes direct current arc. We have studies the influence of sodium, potassium and calcium on the results. (Author)

6

Collaborative study of the elemental analysis of plant tissue by direct reading emission spectroscopy  

International Nuclear Information System (INIS)

Eleven laboratories collaboratively studied the use of direct reading emission spectroscopy, with the solution rotating disk technique of excitation for the elemental analysis of plant tissues; aluminum, barium, boron, calcium, copper, iron, magnesium, manganese, molybdenum, phosphorus, potassium, sodium, strontium, and zinc in alfalfa, citrus leaves, orchard leaves, pine needles, and tomato leaves. Since not all direct reading emission spectrographs are alike in all features, provisions were made to accommodate these differences relating to sample preparation, selection of the internal standard, and method of sample excitation. The sample is dry ashed and the ash is dissolved in an acidic buffer solution. Coefficients of variation obtained in the collaborative study ranged from 3 to 50 percent. For most plant tissue samples and elements, the value is less than 20 percent. The results obtained with direct readers are generally better than those obtained on photographic instruments and comparable to those obtained by atomic absorption spectroscopy. Direct reading emission spectroscopy is rapid, providing 14 elemental analyses in generally less than 1 min for a prepared sample. The method has been adopted as official first action. (U.S.)

7

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

8

Studies of particle emission from solid surfaces by means of direct-Reading Detectors  

International Nuclear Information System (INIS)

An experimental set-up measuring differential sputtering yields and angular distribution of sputtered and/or evaporated particles is described. By beam switching the evaporation and sputtering components can be separated which is a problem at higher sample temperatures. As a specific application the temperature dependence of the differential sputtering yield of silver under atomic and molecular antimony bombardment is investigated. It is concluded that direct reading particle detectors can give valuable information in special areas. (G.Q.)

9

Analytical laboratory and mobile sampling platform  

Energy Technology Data Exchange (ETDEWEB)

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.

Stetzenbach, K.; Smiecinski, A.

1996-04-30

10

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

11

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)

12

Direct reading spectrochemical analysis of nuclear graphite; Analisis espectroquimico de lectura directa de grafito nuclear  

Energy Technology Data Exchange (ETDEWEB)

A description is given about the application of a direct-reading spectrometer the Quantometer, to the determination of boron. calcium, iron, titanium and vanadium in nuclear grade graphite. for boron the powdered sample is mixed with 1% cupric fluoride and excited in a 10-amperes direct current arc and graphite electrodes with a crater 7 mm wide and 10 mm deep. For the other elements a smaller crater has been used and dilution with a number of matrices has been investigated; the best results are achieved by employing 25% cupric fluoride. The sensitivity limit for boron is 0,15 ppm. (Author) 21 refs.

Roca Adell, M.; Becerro Ruiz, E.; Alvarez Gonzalez, F.

1964-07-01

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

14

Performance test of SAUNA xenon mobile sampling system  

International Nuclear Information System (INIS)

In this article, the structure and basic functions of SAUNA noble gas xenon mobile sampling system are introduced. The sampling capability of this system is about 2.2 mL per day, as a result from a 684-h operation. The system can be transported to designated locations conveniently to collect xenon sample for routine or emergency environment monitoring. (authors)

15

The Effects of the Directed Reading-Thinking Activity on EFL Students' Referential and Inferential Comprehension  

Science.gov (United States)

A study investigated the effects of the Directed Reading Thinking Activity on Egyptian first-year secondary stage EFL students' referential and inferential reading comprehension. The study utilized a pretest-posttest control group experimental design. The subjects consisted of 72 first-year secondary students in Menouf Secondary School for Boys at…

El-Koumy, Abdel Salam Abdel Khalek

2006-01-01

16

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 evaluatprotection 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)

17

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 dod 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.

18

Direct-reading spectrochemical analysis of soils and plant ashes; Analisis espectroquimico de lectura directa de suelos y cenizas de plantas  

Energy Technology Data Exchange (ETDEWEB)

Two different techniques haves been tried to determine trace elements in soils and plant ashes using a direct reading spectrometer :1) the samples are mixed with graphite powder and excited on 2x4 mm graphite rods with a 13 amperes direct current arc: 2) a mixture of graphite and strontium carbonate is used as spectrochemical buffer, and 2x6 mm cup graphite rods in a 10 amperes direct current arc. We have studies the influence of sodium, potassium and calcium on the results. (Author)

Roca, M.; Alvarez, F.; Cellini, R. F.; Burriel, F.

1966-07-01

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

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.

 
 
 
 
21

Passive, Direct-Read Monitoring System for Selective Detection and Quantification of Hydrogen Chloride  

Science.gov (United States)

Monitoring the exposure of an employee to hydrogen chloride or hydrochloric acid in the presence of other acids has been a challenge to the industrial hygiene community. The capability of a device to differentiate the levels of acid vapors would allow for more accurate determinations of exposure and therefore improved occupational health. In this work, a selective direct-read colorimetric badge system was validated for Short Term Exposure Limit (STEL) monitoring of hydrogen chloride. The passive colorimetric badge system consists of a direct reading badge and a color scale. The badge has a coated indicator layer with a diffusive resistance in the shape of an exclamation mark. An exclamation mark will appear if hydrogen chloride is present in the atmosphere at concentrations at or above 2.0 ppm. By using the color scale, the intensity of the color formed on the badge can be further quantified up to 25 ppm. The system was validated according to a protocol based on the NIOSH Protocol for the Evaluation of Passive Monitors. The badge was exposed to relative humidities ranging from 11% to 92%, temperatures ranging from 7 C to 400 C and air velocities ranging from 5 cm/sec to 170 cm/sec. All experiments were conducted in a laboratory vapor generation system. Hydrofluoric acid, nitric acid, sulfuric acid, chlorine, hydrogen sulfide and organic acids showed no effect on the performance of the hydrogen chloride monitoring system. The passive badge and color scale system exceeded the accuracy requirements as defined by NIOSH. At ambient conditions, the mean coefficient of variation was 10.86 and the mean bias was 1.3%. This data was presented previously at the American Industrial Hygiene Conference and Exposition in Toronto, Canada in June 1999.

Chapman, K. B.; Mihaylov, G. M.; Kirollos, K. S.

2000-01-01

22

Evaluation of discrepancies between thermoluminescent dosimeter and direct-reading dosimeter results  

Energy Technology Data Exchange (ETDEWEB)

Currently at Oak Ridge National Laboratory (ORNL), the responses of thermoluminescent dosimeters (TLDs) and direct-reading dosimeters (DRDs) are not officially compared or the discrepancies investigated. However, both may soon be required due to the new US Department of Energy (DOE) Radiological Control Manual. In the past, unofficial comparisons of the two dosimeters have led to discrepancies of up to 200%. This work was conducted to determine the reasons behind such discrepancies. For tests conducted with the TLDs, the reported dose was most often lower than the delivered dose, while DRDs most often responded higher than the delivered dose. Trends were identified in personnel DRD readings, and ft was concluded that more training and more control of the DRDs could improve their response. TLD responses have already begun to be improved; a new background subtraction method was implemented in April 1993, and a new dose algorithm is being considered. It was concluded that the DOE Radiological Control Manual requirements are reasonable for identifying discrepancies between dosimeter types, and more stringent administrative limits might even be considered.

Shaw, K.R.

1993-07-01

23

A direct reading on-line flowrate meter for use in radiochemical plant  

International Nuclear Information System (INIS)

A device for measurement and remote direct reading display of the flowrates of streams in a radiochemical plant is described. The device is interposed in the measured stream and consists of a syphon pot with a specially developed attachment on the discharge line. Differential pressure switches are used to trigger a timer device at set levels in the pot and the time required for filling the pot during each cycle is measured and is used to compute and display the flowrate. The device is accurate and reliable and is simple to fabricate and install. It is maintenance-free since it has no moving parts. It is also suggested that a manometer with conductive contacts could be used in place of the d.p. switches. The background and various stages of development of the device are described. The operating data is tabulated and parameters required for plant applications are indicated in detail. A simple method to detect and correct for errors due to drift in d.p. switch setting is also outlined. Sketches of typical syphon pot, the schematic of the apparatus and suggested layout for application in radiochemical plant are also included. (author). 11 figures, 6 tables

24

Rock Gripper for Sampling, Mobility, Anchoring, and Manipulation  

Science.gov (United States)

A new gripper mechanism can be used as an end effector for a long arm that reaches out from a nearby spacecraft for a touch-and-go type of mission. The gripper would stabilize the arm and allow samples to be collected and in situ science to be done from a fixed platform. In the long term, this style of gripper could even be used as handholds for astronauts trying to move about on/near small asteroids. The prototype developed has demonstrated a 120 N gripping force, and improvements continue to be made.

Parness, Aaron

2013-01-01

25

Developing a spatial sampling protocol for stationary and mobile air pollution sampling  

Energy Technology Data Exchange (ETDEWEB)

The Border Air Quality Study (BAQS) was conducted to encourage policy makers and researchers to establish a better connection between ambient levels of particulate matter (PM) and health end points. This presentation addressed the issue of creating an ambient wood smoke concentration surface; providing information for choosing baseline samplers; and, conducting a comprehensive mobile monitoring campaign over the Greater Vancouver Regional District (GVRD). Data sources for creating a PM{sub 2.}5 pollution surface included wood smoke surveys by GVRD and the province of British Columbia; municipal district maps; property assessments; topographic relief data; and, wind speed and direction. A mobile monitoring network was designed based on 6 baseline samplers. The mobile route design was reviewed along with network analysis algorithms. The PM{sub 2.5} pollution surface validation was achieved using monitoring stations and nephelometer measurements of light scattering over GVRD. Surface concentration was estimated by adding a drainage process to the estimated emission. tabs., figs.

Su, J.G.; Buzzelli, M. [British Columbia Univ., Vancouver, BC (Canada). Dept. of Geography

2006-07-01

26

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

27

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 alimentação 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 exatidão da ordem de 0,1 ºC para a faixa de temperatura de 0 ºC a 32 ºC, sendo indicado para experimentos que envolvem medidas de pequenas variações de temperatura. O sistema também apresenta algumas características adicionais, como robustez, facilidade de construção, baixo custo, e resposta rápida a variações 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 ºC for a range of temperature varying between 0 ºC to 32 ºC, 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.

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

2005-09-01

28

The Influence of Social Network in Mobile Experience Sampling -Development and Implementation of Android based Mobile Experience Sampling tool  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The Experience Sampling Method (ESM), a research technique, was initiated to understand human experience and behavior upon a certain subject. This subject can be a commercial product, a period of time or even the quality of our lives. The mostly used pattern in the ESM is questionnaire, a common example of which can be customer satisfactory survey. During the past three decades, the technology used in this kind of research has changed dramatically: from primitively written on paper to vividly...

Huang, Chengcheng

2012-01-01

29

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

30

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.

31

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

32

Chromatography method to extract uranium in mobile forms from soil samples and its significance for uranium ore prospecting  

International Nuclear Information System (INIS)

This article discusses the principle of chromatography method in extracting uranium in mobile forms and the test result of using the method to extract uranium in mobile forms from soil samples. The effectiveness of the method was convincingly demonstrated by successfully test of the surface soil samples from Saihantala area in Inner Mongolia, Sazijiang area in Guangxi and the northern Guangdong's MHK uranium deposit. The effectiveness of the method was compared with water soluble uranium extracting method for elements mobile form. The significance of the method in uranium ore prospecting is also discussed. (authors)

33

Direct reading spectrochemical analysis of sodium uranate; Analisis espectroquimico de lectura directa de uranato sodico  

Energy Technology Data Exchange (ETDEWEB)

We describe the application of the quantometer to the analysis of sodium uranate. To determine boron, cadmium, phosphorus and molybdenum contents, the samples are mixed with graphite powder (1:30) and excited in a 10 amperes direct current arc with 4x4,5 mm cup graphite rods, using silver as internal standard. A not se deep cup and a dilution factor of 90 are more suitable for calcium, copper, iron, silicon and vanadium determination; cobalt and chromium are the internal standards. (Author) 6 refs.

Roca, M.; Capdevila, C.

1966-07-01

34

Inkjet-printed bioassays for direct reading with a multimode DVD/Blu-Ray optical drive.  

Science.gov (United States)

Compact disc-based bioassays have been developed as novel point-of-care (POC) tools for various applications in chemical analysis and biomedical diagnosis. For the fabrication of assay discs, the surface patterning and sample introduction have been restricted to manual delivery that is unfavorable for on-demand high throughput medical screening. Herein, we have adapted a conventional inkjet printer to prepare bioassays on regular DVD-Rs and accomplished quantitative analysis with a multimode DVD/Blu-Ray optical drive in conjunction with free disc diagnostic software. The feasibility and accuracy of this method have been demonstrated by the quantitative analysis of inkjet-printed biotin-streptavidin binding assays on DVD, which serves as a trial system for other complex, medically relevant sandwich-format or competitive immunoassays. PMID:25144468

Li, Xiaochun; Shi, Maolin; Cui, Caie; Yu, Hua-Zhong

2014-09-16

35

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

36

Development of direct reading dosimeters for the dose 0-3 mSv and 0-5 mSv ranges for personnel monitoring  

International Nuclear Information System (INIS)

Direct reading dosimeters (DRDs) are widely used to measure cumulative dose received by personnel working at nuclear reactor sites or in other environment having x- and gamma rays. A DRD operates on the principle of gold leaf electroscope, and is a small, rugged, hermetically sealed, self reading type device easily carried by an individual in his pocket. The development of dosimeters suitable for the dose ranges 0-3 mSv and 0-5 mSv is reported

37

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

38

Characterization of PM 10 and PM 2.5 source profiles for resuspended road dust collected using mobile sampling methodology  

Science.gov (United States)

A new sampling method using a mobile sampling system was developed to sample resuspended road dust on a paved road. To calculate the net mass concentration of resuspended road dust in the dust sample collected behind the front tire of the mobile sampling system, a background subtraction method was employed. The ratio of the PM 2.5 concentration to the PM 10 concentration in resuspended road dust ranged from 0.25 to 0.40, depending upon the sampling sites, which appears to be a function of traffic characteristics, land use, and so forth. The results of chemical analysis of PM samples demonstrated that specific source profiles for resuspended road dust exist according to sampling sites as well as particle size range. It is likely that, particularly in the case of Al, Ca, Fe, and OC, there exists a relatively small or approximately equal magnitude of dependence of sampling sites on the mass percentage of elements in the sampled PM compared with that of the particle size range. In view of the dependence of the Zn mass percentage and Cu/Sb on the average hourly traffic, it is clear that as traffic volume increases, tire wear and brake wear increase, and, accordingly, the amount of tire wear dust and brake wear dust deposited on paved roads increases. It turned out that OC and EC values do not change appreciably with the average hourly traffic. Nonetheless, it was noted that the OC values of PM coarse are two or three times larger than those of PM fine, showing a clear dependence of OC on the particle size range. In the case of EC, however, no clear dependence of EC on the particle size range was found.

Han, Sehyun; Youn, Jong-Sang; Jung, Yong-Won

2011-07-01

39

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

40

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

 
 
 
 
41

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

42

In Situ Mobile Sampling Equipment for Soil pH Analysis  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Applying the system of precision agriculture, soil, plant condition, fertilisation demand, and fertility measures are taken. Using the data obtained, technological parameters of agricultural machines are adjusted in a course of work. In such a way the consumption of fertilisers, lime, pesticides, fuel, and time are optimised growing not only agricultural plants for food and feed, but also raising the materials for biomass. Experimental studies were carried out using a mobile unit Veris MSP wi...

Bartkus, Tadas

2014-01-01

43

Genotyping of human parvovirus B19 in clinical samples from Brazil and Paraguay using heteroduplex mobility assay, single-stranded conformation polymorphism and nucleotide sequencing  

Directory of Open Access Journals (Sweden)

Full Text Available Heteroduplex mobility assay, single-stranded conformation polymorphism and nucleotide sequencing were utilised to genotype human parvovirus B19 samples from Brazil and Paraguay. Ninety-seven serum samples were collected from individuals presenting with abortion or erythema infectiosum, arthropathies, severe anaemia and transient aplastic crisis; two additional skin samples were collected by biopsy. After the procedure, all clinical samples were classified as genotype 1.

Marcos César Lima de Mendonça

2011-06-01

44

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

45

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  

Energy Technology Data Exchange (ETDEWEB)

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.

Anderson, M.S.; Braymen, S.D.

1995-01-27

46

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

47

Interstitial oxygen mobility in superconducting samples of Bi2Sr2CaCu2O8+y  

International Nuclear Information System (INIS)

Since high-temperature superconductors were discovered, several studies have been made on their physical properties, attempting to associate them to the origin of superconductivity. Obviously, the oxygen atoms interstitially dissolved in the matrix have an important role in superconductivity, since they move easily in the lattice. In addition, they contribute to hole creation in the CuO2 planes. Anelastic spectroscopy (internal friction) measurements are sensitive tools for the study of defects in solids, in particular for oxygen mobility. In this paper, Bi2Sr2CaCu2O8+y samples with several different amounts of interstitial oxygen were analysed by means of anelastic spectroscopy measurements. The measurements were performed by using a torsion pendulum operating at a frequency of about 40 Hz. Complex relaxation structures were observed and attributed to the shift of the oxygen interstitial atoms in BiO chains

48

Homogeneous Liquid-Liquid Extraction Coupled to Ion Mobility Spectrometry for the Determination of p-Toluidine in Water Samples.  

Science.gov (United States)

In this research, homogeneous liquid-liquid extraction followed by ion mobility spectrometry (HLLE-IMS) with corona discharge ionization source has been developed for the determination of p-toluidine. The analyte was extracted by single-phase extraction in a ternary solvent system and then the extracted p-toluidine was injected into IMS for analysis. Optimization of different parameters which could influence HLLE-IMS was performed. Under optimum conditions, the dynamic linear range was obtained over 2.0-40.0 ng/mL with R (2) = 0.9966 while relative standard deviation was below 10 %. The limits of detection and quantification were 0.6 and 2.0 ng/mL of p-toluidine, respectively. The proposed method was applied to determine p-toluidine in environmental water samples which resulted in acceptable recoveries of the analyte, ranging from 85.3 %-90 %. PMID:25427773

Ashori, Amin; Sheibani, Ali

2014-11-27

49

Direct-reading spectrochemical analysis of magnesium alloys; Analisis espectroquimico de lectura directa de aleaciones de magnesio  

Energy Technology Data Exchange (ETDEWEB)

A Quantometer has been applied to the determination of aluminum, berylium, calcium, iron, silicon and zinc in magnesium alloys Magnox, after the conversion of the samples to the oxide. For the aluminum, whose concentration is relatively high, the conducting briquets technique with an interrupted discharge is employed, using the magnesium as the internal standard. For the other elements a total burning method with direct current arc is employed, using also the magnesium as the internal standard. (Author) 7 refs.

Roca Adell, M.

1964-07-01

50

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

51

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

52

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

53

Headspace-solid phase microextraction of selenium(IV) from human blood and water samples using polypyrrole film and analysis with ion mobility spectrometry.  

Science.gov (United States)

Headspace-solid phase microextraction (HS-SPME) with a polypyrrole (PPy)-coated fiber was applied as a sample preparation method for determination of selenite [Se(IV)] following derivatization with 1,2-diaminobenzene to convert into the piaselenol form and analysis by ion mobility spectrometry (IMS). The HS-SPME-IMS method presents good repeatability (RSDs serum and environmental surface water samples with satisfactory recovery. PMID:21167986

Shahdousti, Parvin; Alizadeh, Naader

2011-01-17

54

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

55

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

56

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

57

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

58

Mobility of Po and U-isotopes under acid mine drainage conditions: an experimental approach with samples from Río Tinto area (SW Spain).  

Science.gov (United States)

Under acid mine drainage (AMD) conditions, the solubilities and mobilities of many elements are vastly different from conditions prevailing in most natural waters. Studies are underway in the Río Tinto area (Iberian Pyrite Belt), in order to understand the behavior and mobility of long-lived U-series radionuclides under AMD conditions. A set of leaching experiments utilizing typical country rocks from the Tinto River basin, waste rock pile composite materials, iron-rich riverbed sediments and gossan (weathered naturally rock) were performed towards this purpose. Initial leaching experiments using distilled water kept in contact with solid material for 300, 100, 50 and 1 h resulted in very low concentrations of U with (234)U/(238)U activity ratios close to equilibrium and activity concentrations of (210)Po contact times between the solid and solution for 24 h were conducted to quantify the amount of U-isotopes and (210)Po leached, and the radioactive disequilibria generated between the radionuclides in the leachate. These experiments show that Po mobility in acidic conditions (pH around 1-2) is very low, with (210)Po activity in the leachate to be 6% in average for the solid sample. By contrast, mobility of U-isotopes is higher than that of Po, around 1.2%. PMID:24308958

Barbero, L; Gázquez, M J; Bolívar, J P; Casas-Ruiz, M; Hierro, A; Baskaran, M; Ketterer, M E

2014-12-01

59

Sampling  

Science.gov (United States)

This tutorial covers some of the key terms in sampling like "population" and "sampling frame," some of the statistical terms used in sampling, and the major distinction between probability and Nonprobability sampling methods.

William Trochim (Cornell University)

2006-10-20

60

Headspace-multicapillary column-ion mobility spectrometry for the direct analysis of 2,4,6-trichloroanisole in wine and cork samples.  

Science.gov (United States)

Headspace-multicapillary column-ion mobility spectrometry coupling has been evaluated for the direct analysis of wine and cork stopper samples for the determination of 2,4,6-trichloroanisole (2,4,6-TCA). The instrumental configuration permits the sample to be introduced in headspace vials which are placed into the autosampler oven in order to facilitate the transference of the volatile compounds from the sample to its headspace. Further, an aliquot of 200 ?L of the homogenized gaseous phase is injected into the multicapillary column in order to separate the target compounds from potential interferents. The detection of 2,4,6-TCA was carried out in an ion mobility spectrometer with a radioactive source and working under negative mode. All the system was computer controlled, including data acquisition and treatment. The limits of detection achieved were 0.012 ng L(-1) for wine and 0.28 ng g(-1) for the cork stopper. The procedure was applied to the analysis of commercial wine samples in different packages and 2,4,6-TCA was found in all of those closed with a cork stopper. The excellent recovery values obtained testify for the goodness of the method as no interference from the sample matrix exits. PMID:23089513

Márquez-Sillero, Isabel; Cárdenas, Soledad; Valcárcel, Miguel

2012-11-23

 
 
 
 
61

Remote possibly hazardous content container sampling device  

Science.gov (United States)

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

62

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

63

Discovery of Lipid Alterations in Biological Samples using UPLC, Ion Mobility Mass Spectrometry and TransOmics  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Lipids play essential roles in health and disease. The discovery of novel alterations in lipid levels related to human diseases could lead to the development of novel biomarkers and shed light on the etiology of many human diseases. The challenge with global lipid analysis is the chemical complexity and the large range of concentrations of thousands of lipid species that are present in biological samples. Here we present a robust workflow for global lipid profiling, which employs UPLC, ion mo...

Astarita, G.; Isaac, G.; Shockcor, J.; Langridge, J.; Martin, Leroy

2013-01-01

64

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

65

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 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 compo

66

Development of the mobile penetrometer (Mole) as sampling tool for the Beagle2 Lander on Mars Express 2003  

Science.gov (United States)

The Mole, an hammer based penetrometer to be used as a sampling tool on the Beagle2 Lander (ESA Mars Express 2003 mission) was the object of several investigations, to identify the main parameters ruling its intrusion process and subsequently optimize and improve it. The working environment of the Mole (Martian sand-like soil) was simulated and fully characterized to allow repeatable test conditions. For this characterization a Piezocone able to detect the frontal force and the lateral friction during the penetration was also used. A Mole simulator was used for fast testing of the frontal resistance. Once a good and "repeatable" Mars simulant was obtained the Mole performed several intrusions and extractions. An accelerometer mounted behind the tip was used to investigate the dynamical behaviour of the Mole. From the data acquired it was possible to implement a mathematical model of the Mole, used to study the intrusion dynamics vs. the change of the internal and external variables. For sake of brevity, in the following paper just the most important results are presented.

Pinna, S.; Angrilli, F.; Kochan, H.; Richter, L.

2001-01-01

67

Mobile Advertising  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The aim of this project was to get an understanding of how companies adopt mobile as an advertising medium. The literature review aided in framing a draft of the factors that affect mobile advertising adoption and possible forms of mobile advertising. Considering the scope of the thesis work, branding strategy, service costs, personalization and privacy and platform were considered to be the factors that could affect the mobile advertising adoption. A few possible forms on mobile device we...

Alamuri, Lavanya

2009-01-01

68

Mobile learning in medicine  

Science.gov (United States)

This paper outlines the main infrastructure for implicating mobile learning in medicine and present a sample mobile learning application for medical learning within the framework of mobile learning systems. Mobile technology is developing nowadays. In this case it will be useful to develop different learning environments using these innovations in internet based distance education. M-learning makes the most of being on location, providing immediate access, being connected, and acknowledges learning that occurs beyond formal learning settings, in places such as the workplace, home, and outdoors. Central to m-learning is the principle that it is the learner who is mobile rather than the device used to deliver m learning. The integration of mobile technologies into training has made learning more accessible and portable. Mobile technologies make it possible for a learner to have access to a computer and subsequently learning material and activities; at any time and in any place. Mobile devices can include: mobile phone, personal digital assistants (PDAs), personal digital media players (eg iPods, MP3 players), portable digital media players, portable digital multimedia players. Mobile learning (m-learning) is particularly important in medical education, and the major users of mobile devices are in the field of medicine. The contexts and environment in which learning occurs necessitates m-learning. Medical students are placed in hospital/clinical settings very early in training and require access to course information and to record and reflect on their experiences while on the move. As a result of this paper, this paper strives to compare and contrast mobile learning with normal learning in medicine from various perspectives and give insights and advises into the essential characteristics of both for sustaining medical education.

Serkan Güllüoü?lu, Sabri

2013-03-01

69

Staging Mobilities  

DEFF Research Database (Denmark)

In recent years, the social sciences have taken a “mobilities turn.” There has been a developing realisation that mobilities do not “just happen.” Mobilities are carefully and meticulously designed, planned and staged (from above). However, they are equally importantly acted out, performed and lived as people are “staging themselves” (from below). Staging mobilities is a dynamic process between “being staged” (for example, being stopped at traffic lights) and the “mobile staging” 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

70

Mobile payment  

CERN Document Server

Paying with mobile devices such as mobile phones or smart phones will expand worldwide in the coming years. This development provides opportunities for various industries (banking, telecommunications, credit card business, manufacturers, suppliers, retail) and for consumers.

Lerner, Thomas

2013-01-01

71

Direct-reading type microwave interferometer  

International Nuclear Information System (INIS)

A new microwave interferometer has been developed and applied to the electron density measurement on JIPP T-II plasma 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 1013 cm-3 in 1 ms has been measured at the tokamak operation of JIPP T-II. (auth.)

72

Mobile Semiotics  

DEFF Research Database (Denmark)

This chapter aims to understand the mobile condition of contemporary life with a particular view to the signifying dimension of the environment and its ‘readability’. The chapter explores the potentials of semiotics and its relationship to the new mobilities literature. What takes place is a ‘mobile sense making’ where signs and materially situated meanings connect to the moving human body and thus create particular challenges and complexities of making sense of the world. The chapter includes notions of mobility systems and socio-technical networks in order to show how a ‘semiotic layer’ may work to afford or restrict mobile practices.

Jensen, Ole B.

2014-01-01

73

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 ‘readability’. 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 ‘geosemiotics’ by Scollon & Scollon. The paper’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 ‘mobilities turn’. 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.

74

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

75

Separating mobility from mobile agents  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In this paper we argue that the traditional model of a mobile agent provides a poor programming structure. We base our argument on our experience since 1993 in building distributed applications and mobile agent platforms. We have observed that every distributed applications contain three distinct aspects, which we call function, mobility and management. Separating an application into these three aspects and programming them separately affords great flexibility and leverage when designing mobi...

Lauvset, Ka?re J.; Marzullo, Keith; Johansen, Dag

2001-01-01

76

Mobile phone  

International Nuclear Information System (INIS)

Almost the entire Norwegian population has cell phone. The usefulness of the cell phone is great, but can use a mobile phone to health or discomfort? How can exposure be reduced? NRPA follows research and provides advice on mobile phone use. (AG)

77

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 ‘mobility turn’ 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

78

Inferring Human Mobility from Sparse Low Accuracy Mobile Sensing Data  

DEFF Research Database (Denmark)

Understanding both collective and personal human mobility is a central topic in Computational Social Science. Smartphone sensing data is emerging as a promising source for studying human mobility. However, most literature focuses on high-precision GPS positioning and high-frequency sampling, which is not always feasible in a longitudinal study or for everyday applications because location sensing has a high battery cost. In this paper we study the feasibility of inferring human mobility from sparse, low accuracy mobile sensing data. We validate our results using participants' location diaries, and analyze the inferred geographical networks, the time spent at different places, and the number of unique places over time. Our results suggest that low resolution data allows accurate inference of human mobility patterns.

Cuttone, Andrea; JØrgensen, Sune Lehmann

2014-01-01

79

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

80

Designing Mobilities  

DEFF Research Database (Denmark)

How is the width of the pavement shaping the urban experience? How is the material design of transport infrastructure and mobile technology affording social interaction in everyday life spaces? How do people inhabit these spaces with their bodies and in accordance to social and cultural norms? These are some of the questions that this book raises in order to explore how the design of mobile sites and situations affect people's everyday life. The book takes point of departure in the author's book 'Staging Mobilities' (Routledge, 2013) in which it is argued that mobility is much more than simple movements of people, goods, and information 'from A to B'. Accordingly, the way people, goods, and information moves shapes the way we understand our built environment, other consociates, and ourselves. The book contributes with a new and critical-creative gaze on what might seem to be trivial and mundane acts of moving in the city. 'Designing Mobilities' is based on more than a decade of academic research by Professor of Urban Theory, Ole B. Jensen and a must-read for students and scholars with an interest in urban studies, urban design, architecture, urban planning, transport planning and geography, urban geography, anthropology, design studies, interaction design, and urban sociology.

Jensen, Ole B.

2014-01-01

 
 
 
 
81

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

82

Professional Flash Lite Mobile Development  

CERN Document Server

Discover how to create Flash Lite mobile apps from the ground up. Adobe Flash is an ideal choice for developing rich interactive content for "Flash-enabled" mobile devices; and with this book, you'll learn how to create unique applications with Flash Lite. Through a series of code samples and extensive example applications, you'll explore the core concepts, key features, and best practices of the Flash Lite player. Coverage reveals various ways to develop Flash mobile content, create applications with a cross-platform programming framework based on the Model, View and Controller conc

Anderson, J G

2010-01-01

83

Mobile Grid System Based on Mobile Agent  

Science.gov (United States)

Mobile Grid is a branch of Grid where the infrastructure includes mobile devices. The mobile Grid exhibits different challenges such as resource-constraints and users' movements, compared to the traditional Grid. Mobile agent is an attractive technology to overcome these challenges. In this paper, we present a new mobile Grid system based on the mobile agent. This paper describes the architecture of the new system: multi-proxy based mobile grid environment with location management and message delivery mechanism. Our system is lightweight enough to be installed on mobile devices. It also provides the physical and logical mobility of mobile agents. We implemented the mobile Grid system based on Globus Toolkit and ODDUGI mobile agent system.

Lee, Jonghyuk; Choi, Sungjin; Lim, Jongbeom; Suh, Taeweon; Gil, Joonmin; Yu, Heonchang

84

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

85

Intergenerational Income Mobility and Family Dissolution  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This study examines the intergenerational income mobility between intact families and families disrupted due to divorce or parental death. The data samples consist of children born in 1960 and 1970 along with their biological fathers and mothers. The income mobility is explored between sons and fathers, sons and mothers, daughters and fathers and daughters and mothers. The results of the analyses show that the income mobility differs between intact and disrupted families where the deviations ...

Rieck, Karsten Marshall Elseth

2008-01-01

86

Exploring the Mobility of Mobile Phone Users  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile phone datasets allow for the analysis of human behavior on an unprecedented scale. The social network, temporal dynamics and mobile behavior of mobile phone users have often been analyzed independently from each other using mobile phone datasets. In this article, we explore the connections between various features of human behavior extracted from a large mobile phone dataset. Our observations are based on the analysis of communication data of 100000 anonymized and ran...

Csaji, Balazs Cs; Browet, Arnaud; Traag, Vincent; Delvenne, Jean-charles; Huens, Etienne; Dooren, Paul; Smoreda, Zbigniew; Blondel, Vincent

2012-01-01

87

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.

Naresh Kumar, B.; Krishnaiah?, Dr R. V.

2013-01-01

88

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

89

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

90

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

91

Mobile video with mobile IPv6  

CERN Document Server

Increased reliance on mobile devices and streaming of video content are two of the most recent changes that have led those in the video distribution industry to be concerned about the shifting or erosion of traditional advertising revenues. Infrastructure providers also need to position themselves to take advantage of these trends. Mobile Video with Mobile IPv6provides an overview of the current mobile landscape, then delves specifically into the capabilities and operational details of IPv6. The book also addresses 3G and 4G services, the application of Mobile IPv6 to streaming and other mobil

Minoli, Daniel

2012-01-01

92

Exploring technology acceptance for mobile services  

Directory of Open Access Journals (Sweden)

Full Text Available Purpose: Mobile phone industries are no longer relying on voice services. It is predicted that data services are expected to be a remediation for the declining of average revenue per user (ARPU in telecommunication market. The purpose of this paper is to find the factors that influence the acceptance/adoption of mobile services.Design/methodology/approach: This paper utilizes quantitative method. Questionnaire were distributed to collect the data. The questionnaires are designed specifically to address the factors related to mobile services. Later on, this paper uses Analytical Hierarchical Process (AHP and Cluster analysis to identify the factors that influence the adoption of mobile services.Findings: The results show that ease of use and usefulness are top two factors that influence the adoption of mobile services.Research limitations/implications: The sample for the study is relatively small. For future research, the sample should be increased. The data collection should also look into different devices and operating system of mobile phones to find if there is any significant difference in adopting mobile services.Practical implications: This framework is expected to be able to help the mobile services provider to design better mobile services that can attract users to adopt them. Originality/value: This is the follow on research on the previous study that employed different method. This study is to confirm and support the findings from previous study.

Kenny Phan

2011-07-01

93

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

94

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. This paper presents a mobile applicatio...

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

2009-01-01

95

Optimum Mobility Performance with Mobile IP & SIP?  

Directory of Open Access Journals (Sweden)

Full Text Available 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.

B. Naresh Kumar

2013-10-01

96

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

97

Mobile Operating Systems  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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; Hitesh Gupta,

2012-01-01

98

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

99

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

100

MOBILE AGENT: EMERGING TECHNOLOGY  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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, ...

Rajguru Dr Deshmukh, P. V. S. D.

2011-01-01

 
 
 
 
101

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

102

Mobile Cloud Computing.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Despite increasing usage of mobile computing, using its full potential is difficult due to its problems such as resource scarcity, frequent disconnections, and mobility. Mobile cloud computing can address these problems by executing mobile applications on resource providers external to the mobile device. Cloud computing is the latest effort in delivering computing resources as a service. It represents a shift away from computing as a product that is purchased, to computing as a service that i...

Miss Priyanka J Pursani, Prof P. L. Ramteke

2013-01-01

103

Mobile Commerce and Related Mobile Security Issues  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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, Rugved Mehta

2013-01-01

104

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

105

Understanding the importance of the viscosity contrast between the sample solvent plug and the mobile phase and its potential consequences in two-dimensional high-performance liquid chromatography  

Energy Technology Data Exchange (ETDEWEB)

The effect of solvent viscosity mismatch on elution performance in reversed-phase HPLC was studied using moment analysis. Two conditions were tested: (1) the mobile phase viscosity was less than the injection plug viscosity, and (2) the mobile phase viscosity was greater than the injection plug viscosity. Under the first condition, retention time and elution performance decreased as the viscosity contrast between the mobile phase and injection plug increased. The effect on performance was more marked as the injection volume increased. A decrease in performance of 12% for compounds with retention factors up to 2.8 was apparent even when the viscosity contrast was only 0.165 cP. In the second set of conditions, elution performance was actually observed to increase, by as much as 25% for a 40 {micro}L injection, as the viscosity contrast between the mobile phase and the solute plug increased. No change in the retention factor was observed. This behaviour was attributed to the shape of an injection plug as it enters into the column, whereby a low viscosity plug permeates away from the wall when the column contains a higher viscosity mobile phase, and vice a versa for a high viscosity plug entering a low viscosity mobile phase. At no stage was either a band splitting or shoulders observed with viscosity contrasts up to 1.283 cP, as could have been expected.

Shalliker, R. Andrew [University of Western Sydney, Australia; Guiochon, Georges A [ORNL

2009-01-01

106

ACTS mobile propagation campaign  

Science.gov (United States)

Preliminary results are presented for three propagation measurement campaigns involving a mobile receiving laboratory and 20 GHz transmissions from the Advanced Communications Technology Satellite (ACTS). Four 1994 campaigns were executed during weekly periods in and around Austin, Texas in February and May, in Central Maryland during March, and in Fairbanks, Alaska and environs in June. Measurements tested the following effects at 20 GHz: (1) attenuation due to roadside trees with and without foliage, (2) multipath effects for scenarios in which line-of-sight paths were unshadowed, (3) fades due to terrain and roadside obstacles, (4) fades due to structures in urban environs, (5) single tree attenuation, and (6) effects of fading at low elevation angles (8 deg in Fairbanks, Alaska) and high elevation angles (55 deg in Austin, Texas). Results presented here cover sampled measurements in Austin, Texas for foliage and non-foliage cases and in Central Maryland for non-foliage runs.

Goldhirsh, Julius; Vogel, Wolfhard J.; Torrence, Geoffrey W.

1994-08-01

107

Undergraduate Attitudes and Expectations for Mobile Banking  

Directory of Open Access Journals (Sweden)

Full Text Available This study analyzed the undergraduate students' willingness on adopting the usage of mobile phone in banking transaction' focusing on Islamic banking in FT, Labuan. Research has been conducted to analyze the students' attitudes and expectations toward mobile banking. Furthermore, students' socio-demographic elements were also studied and analyzes in relations with the study. As noted, sample was taken from students of Universiti Malaysia Sabah, Labuan International Campus. A total of 615 students were approached using convenience sampling modes. And, the finding illustrate that students tend to learn and adopt mobile banking in their banking transactions. In addition, the results also demonstrate students' attitudes and expectations to be the most consistent explanatory factors in predicting their willingness on adopting mobile banking usage in the future. In the nutshell, the findings were in-line with the previous study conducted by Howcroft, Hamilton and Hewer (2002, Sivanand, Geeta and Suleep (2004 and Laforet and Li (2005.

Hanudin Amin

2006-12-01

108

Ion mobility sensor system  

Science.gov (United States)

An ion mobility sensor system including an ion mobility spectrometer and a differential mobility spectrometer coupled to the ion mobility spectrometer. The ion mobility spectrometer has a first chamber having first end and a second end extending along a first direction, and a first electrode system that generates a constant electric field parallel to the first direction. The differential mobility spectrometer includes a second chamber having a third end and a fourth end configured such that a fluid may flow in a second direction from the third end to the fourth end, and a second electrode system that generates an asymmetric electric field within an interior of the second chamber. Additionally, the ion mobility spectrometer and the differential mobility spectrometer form an interface region. Also, the first end and the third end are positioned facing one another so that the constant electric field enters the third end and overlaps the fluid flowing in the second direction.

Xu, Jun; Watson, David B.; Whitten, William B.

2013-01-22

109

Experiences with Linux Mobile  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile phones are becoming more and more complex in terms of both hardware and software. Linux Mobile, as a term covering both the kernel and its surrounding components that together form the operating system, is said to have the potential to become the de-facto standard operating system for mobile phones and an enabler for advanced future mobile services. This master thesis evaluates key aspects and central mechanisms of the Linux kernel and how it supports its surrounding hardware and...

Sivertsen, Frode

2007-01-01

110

Mobile Learning Applications Audit  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 auto...

Pocatilu, Paul; Pocovnicu, Adrian

2010-01-01

111

Mobile Services Adoption Model  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This research presents an explanatory model for consumers' adoption of mobile services. This model uses the Unified Theory of Acceptance and Use of Technology presented by Venkatesh in 2003 as a baseline and integrates the Perceived Enjoyment, Mobile Affinity, Perceived Price of Service and the Frequency of Mobile Usage as to investigate the Attitude and the Intention to Use mobile services. The proposed model was empirically tested using data collected from a field survey where 1095 responde...

Abu Ghannam, Bashar

2011-01-01

112

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

113

Software architecture and mobility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Modern Software Architectures often have to deal with mobile components. Therefore, the structure of these systems is dynamic and continuously changing.We introduce mobiS, a coordination language based on multiple tuple spaces and show through an example how it can be used for the specification of software architectures containing mobile components. The flexibility of the language encodes mobility in the model, so the specification of mobile components and of reconfigurable systems is easy.Du...

Ciancarini, P.; Mascolo, C.

1998-01-01

114

Mobile Student Information System  

Science.gov (United States)

Purpose: A mobile student information system (MSIS) based on mobile computing and context-aware application concepts can provide more user-centric information services to students. The purpose of this paper is to describe a system for providing relevant information to students on a mobile platform. Design/methodology/approach: The research…

Asif, Muhammad; Krogstie, John

2011-01-01

115

Marketing mobile imaging services.  

Science.gov (United States)

Competition in the mobile imaging arena has put radiologists, radiology directors, and other health care professionals in the unfamiliar position of being marketing agents for their services. Mobile imaging is being promoted through consumer advertising as well as through the traditional route of physician referral. This article offers some of the marketing lessons being learned in the mobile arena. PMID:10283693

McCue, P

1987-09-01

116

Mobile intention recognition  

CERN Document Server

Mobile Intention Recognition addresses problems of practical relevance for mobile system engineers: how can we make mobile assistance systems more intelligent? How can we model and recognize patterns of human behavior which span more than a limited spatial context? This text provides an overview on plan and intention recognition, ranging from the late 1970s to very recent approaches. This overview is unique as it discusses approaches with respect to the specificities of mobile intention recognition. This book covers problems from research on mobile assistance systems using methods from artific

Kiefer, Peter

2011-01-01

117

Mobile satellite communications handbook  

CERN Document Server

Mobile Satellite Communications Handbook, Second Edition, serves to provide background for the earliest proposals to the most current advances in technology used for INMARSAT and NON-INMARSAT mobile-satellite communications.  Revised edition will serve both technical and non-technical professionals who rely every day on mobile satellite communications Describes and explains historic, current, and planned civil, commercial, and military mobile satellite communication systems.  1st Edition charts and tables updated and expanded with current material for today's mobile satellite technology

Cochetti, Roger

2014-01-01

118

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

119

Mobile Cloud Computing.  

Directory of Open Access Journals (Sweden)

Full Text Available Despite increasing usage of mobile computing, using its full potential is difficult due to its problems such as resource scarcity, frequent disconnections, and mobility. Mobile cloud computing can address these problems by executing mobile applications on resource providers external to the mobile device. Cloud computing is the latest effort in delivering computing resources as a service. It represents a shift away from computing as a product that is purchased, to computing as a service that is delivered to consumers over the internet from large-scale data centers – or “clouds”.In this paper, we provide an extensive survey of mobile cloud computing research, while highlighting the specific concerns in mobile cloud computing along with various issues to be considered and their solutions.

Miss Priyanka J.Pursani, Prof. P.L.Ramteke

2013-04-01

120

Client Mobile Software Design Principles for Mobile Learning Systems  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 res...

Qing Tan; Kinshuk Kinshuk

2009-01-01

 
 
 
 
121

Mobile Service Architecture in Future Mobile Environments  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Nowadays, most mobile phones are equipped with multiple wireless access technologies, which allow the user to maintain connections while moving across networks (e.g. having a telephony service in GSM while moving to a WLAN area). The IEEE 802.21 Media Independent Handover (MIH) Services is a standard aiming at facilitating handover between these heterogeneous networks. In the current situation, in order for the mobile device to detect other wireless access network (e.g. WLAN), the user has to...

Kamal Bashah, Nor Shahniza

2013-01-01

122

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

123

Facial Expression Driven Mobile Learning System  

Directory of Open Access Journals (Sweden)

Full Text Available Processing human facial expressions is a computer vision challenge in a mobile technology environment. On the other hand, facial expression is an effective tool in behavioral studies on learning environment. Since, mobile technologies possess educating potential for today’s generation, the introduction of behavior as a consideration for mobile user opens up many opportunities for the design and development of a mobile learning system that can cater personalized learning. This undertaking was concerned with the enhancement of learners’ learning engagement and the enrichment of learners’ benefits. The mobile learning system approximates the learners’ facial expressions. The facial expressions will be used to identify the learning moods that will then be used to match the appropriate learning materials and activities of the learners. These steps are done to achieve optimal experience in learning. Approximation of learners’ facial expressions, learning moods, and matching of learning materials and activities to the learners are done through the use of intelligent computing techniques. In order for the stated endeavors to be achieved this undertaking considered three (3 stages of actions. Stage one focused on identifying the requirements needed to design, develop and assess the proposed facial expression driven mobile learning system. The second stage focused on the actual design and development of a prototype for the proposed facial expression driven mobile learning system and the third stage focused on the assessment of the prototype of the proposed facial expression driven mobile learning system. Assessment was done by pilot testing the mobile learning system prototype to a student sample from the researchers’ locality.

Jeffrey S. Ingosan

2014-02-01

124

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 appli...

Shruti Jain

2012-01-01

125

Mobile Multiplayer Gaming  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The last ten years, online multiplayer games have become very popular. During the same time period mobile terminals and cellular networks have undergone a tremendous technical evolution. Therefore it is natural to wonder why we have not seen an online mobile multiplayer gaming revolution yet. The answer to this question is of great value for companies selling mobile systems. This answer is important in order to understand how to fill up today’s empty networks with traffic and what kind of t...

Westermark, Christian

2007-01-01

126

Overbooking in Mobile Backhaul  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 consi...

Chunming Liu; Bryan Fleming

2013-01-01

127

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...

Lakshmi Prasanna, N.; Krishnaiah?, Dr R. V.

2013-01-01

128

Mobile Multilayer IPsec protocol  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A mobile user moves around and switches between wireless cells, subnets and domains, it needs to maintain the session continuity. At the same time security of signaling and transport media should not be compromised. A multi-layer security framework involving user authentication, packet based encryption and access control mechanism can provide the desired level of security to the mobile users. Supporting streaming traffic in a mobile wireless Internet is faced with several challenges due to co...

Gayathri, T.; Venkadajothi, S.; Kalaivani, S.; Divya, C.; Suresh Gnana Dhas, Dr C.

2009-01-01

129

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

130

Programming the Mobile Web  

CERN Document Server

Today's market for mobile apps goes beyond the iPhone to include BlackBerry, Nokia, Windows Phone, and smartphones powered by Android, webOS, and other platforms. If you're an experienced web developer, this book shows you how to build a standard app core that you can extend to work with specific devices. You'll learn the particulars and pitfalls of building mobile apps with HTML, CSS, and other standard web tools. You'll also explore platform variations, finicky mobile browsers, Ajax design patterns for mobile, and much more. Before you know it, you'll be able to create mashups using Web 2.

Firtman, Maximiliano

2010-01-01

131

Practical mobile forensics  

CERN Document Server

The book is an easy-to-follow guide with clear instructions on various mobile forensic techniques. The chapters and the topics within are structured for a smooth learning curve, which will swiftly empower you to master mobile forensics. If you are a budding forensic analyst, consultant, engineer, or a forensic professional wanting to expand your skillset, this is the book for you. The book will also be beneficial to those with an interest in mobile forensics or wanting to find data lost on mobile devices. It will be helpful to be familiar with forensics in general but no prior experience is re

Bommisetty, Satish; Mahalik, Heather

2014-01-01

132

Test for mobility  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile application testing is a process by which application software developed for mobile devices is tested, in aspects as functionality, usability and consistency. These applications can be pre-installed or installed from distribution platforms for mobile software. Due mobile devices have witnessed of a phenomenal growth in recent years (a study by Yankee Group predicted to generate $ 4.2 billion in revenue for 2013 through 7000 million downloads of applications the U.S., it is necesary test engineers increasingly specialize. In this article are described the types of applications, the challenges of testing, and its automation.

Li Kheng

2014-06-01

133

Exploring the mobility of mobile phone users  

Science.gov (United States)

Mobile phone datasets allow for the analysis of human behavior on an unprecedented scale. The social network, temporal dynamics and mobile behavior of mobile phone users have often been analyzed independently from each other using mobile phone datasets. In this article, we explore the connections between various features of human behavior extracted from a large mobile phone dataset. Our observations are based on the analysis of communication data of 100,000 anonymized and randomly chosen individuals in a dataset of communications in Portugal. We show that clustering and principal component analysis allow for a significant dimension reduction with limited loss of information. The most important features are related to geographical location. In particular, we observe that most people spend most of their time at only a few locations. With the help of clustering methods, we then robustly identify home and office locations and compare the results with official census data. Finally, we analyze the geographic spread of users’ frequent locations and show that commuting distances can be reasonably well explained by a gravity model.

Csáji, Balázs Cs.; Browet, Arnaud; Traag, V. A.; Delvenne, Jean-Charles; Huens, Etienne; Van Dooren, Paul; Smoreda, Zbigniew; Blondel, Vincent D.

2013-03-01

134

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

135

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

136

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

137

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

138

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

139

Mobile Apps for Librarians  

Science.gov (United States)

In an increasing mobile environment, library and reading-related activities often take place on a phone or tablet device. Not only does this mean that library Web sites must keep mobile navigability in mind, but also develop and utilize apps that allow patrons to interact with information and with libraries. While apps do not serve every purpose,…

Power, June L.

2013-01-01

140

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

 
 
 
 
141

Mobile Learning for All  

Directory of Open Access Journals (Sweden)

Full Text Available This paper presents research regarding the accessibility design for a mobile learning activity carried out at the Italian National Research Council, Institute for Educational Technologies. In particular, we introduce some considerations about the methodology and the design steps used to build some educational tools on mobile devices that are fully accessible for students with special needs using a compact screen reader (on a Smartphone. Briefly, we outline the common problems of accessing an online learning management system through a Smartphone (services and information, and then we introduce a mobile learning environment, the Accessible Mobile Learning (AMobiLe, which we have designed with specific features for visually impaired students. One of the main aims of our research is to explore and evaluate ways of using mobile devices to stimulate collaborative learning, as well as to demolish barriers for disabled students in order to reduce the digital divide.

Marco Arrigo

2010-04-01

142

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

143

Innovation for future mobile services  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The mobile telecom industry has developed a substantial amount of mobile services that have attracted few end-users. The new mobile telephony systems will offer even more possibilities to develop mobile services, and frequent use of mobile services is necessary to warrant the high investment cost in those systems. But how do we then meet users and their needs with continued development of mobile services and prod-ucts? In this project we have started a work to find new...

Helgeson, Bo; Hardemo, Isa; Olofsson, Sarah; Pettersson, Ma?rten; Hederstierna, Anders; Wrenne, Anders; Hallqvist, Klas

2003-01-01

144

Financial Disclosure and International Capital Mobility in Latin America  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The extant literature provides evidence on the impact of financial disclosure environments on international capital mobility. However, to our knowledge, there are no such studies including Latin-American countries. We aimed to fill this void by assessing the influence of accounting information on international capital mobility in a twenty-two-country sample, including the three largest Latin-American countries: Argentina, Brazil and Mexico. The countries included in the sample represent aroun...

Luis Gustavo do Lago Quinteiro; Medeiros, Otavio R.

2008-01-01

145

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 ‘mobile embodiments’ 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 Gibson’s theories of visual perception and motion, Lynch’s theories of the mobile experiences of the city, and Goffman’s notions of ‘presentation of self’ 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 ‘old’ 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. Latour’s work on objects and ANT, Thrift’s work on the body and ‘non-representational theory, and Massumi’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

146

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 ozonesure assessments of ozone

147

3R-WL air sampling survey meter  

International Nuclear Information System (INIS)

The design and operation of a direct-reading sampler for air-borne radon progeny are described. The instrument was designed for use by ventilation personnel in uranium mines and is small, rugged, light-weight and easily carried and operated. Direct readout of the radon progeny concentration in units of working levels, in the range of 0.01 to 10 WL, is accomplished by counting the alpha particles from 218Po and 214Po with a single detector and two energy discrimination channels. Unique features include a fixed-volume, gravity-operated pump requiring no power source and minimal calibration, automatic decay, counting and display sequencing, capacity for more than 50 samples on a single roll of membrane filter, and provisions for recording all data directly on the filter tape

148

Ion mobility analysis of lipoproteins  

Energy Technology Data Exchange (ETDEWEB)

A medical diagnostic method and instrumentation system for analyzing noncovalently bonded agglomerated biological particles is described. The method and system comprises: a method of preparation for the biological particles; an electrospray generator; an alpha particle radiation source; a differential mobility analyzer; a particle counter; and data acquisition and analysis means. The medical device is useful for the assessment of human diseases, such as cardiac disease risk and hyperlipidemia, by rapid quantitative analysis of lipoprotein fraction densities. Initially, purification procedures are described to reduce an initial blood sample to an analytical input to the instrument. The measured sizes from the analytical sample are correlated with densities, resulting in a spectrum of lipoprotein densities. The lipoprotein density distribution can then be used to characterize cardiac and other lipid-related health risks.

Benner, W. Henry (Danville, CA); Krauss, Ronald M. (Berkeley, CA); Blanche, Patricia J. (Berkeley, CA)

2007-08-21

149

Mobile sensing systems.  

Science.gov (United States)

Rich-sensor smart phones have made possible the recent birth of the mobile sensing research area as part of ubiquitous sensing which integrates other areas such as wireless sensor networks and web sensing. There are several types of mobile sensing: individual, participatory, opportunistic, crowd, social, etc. The object of sensing can be people-centered or environment-centered. The sensing domain can be home, urban, vehicular… Currently there are barriers that limit the social acceptance of mobile sensing systems. Examples of social barriers are privacy concerns, restrictive laws in some countries and the absence of economic incentives that might encourage people to participate in a sensing campaign. Several technical barriers are phone energy savings and the variety of sensors and software for their management. Some existing surveys partially tackle the topic of mobile sensing systems. Published papers theoretically or partially solve the above barriers. We complete the above surveys with new works, review the barriers of mobile sensing systems and propose some ideas for efficiently implementing sensing, fusion, learning, security, privacy and energy saving for any type of mobile sensing system, and propose several realistic research challenges. The main objective is to reduce the learning curve in mobile sensing systems where the complexity is very high. PMID:24351637

Macias, Elsa; Suarez, Alvaro; Lloret, Jaime

2013-01-01

150

Mobile Sensing Systems  

Directory of Open Access Journals (Sweden)

Full Text Available Rich-sensor smart phones have made possible the recent birth of the mobile sensing research area as part of ubiquitous sensing which integrates other areas such as wireless sensor networks and web sensing. There are several types of mobile sensing: individual, participatory, opportunistic, crowd, social, etc. The object of sensing can be people-centered or environment-centered. The sensing domain can be home, urban, vehicular… Currently there are barriers that limit the social acceptance of mobile sensing systems. Examples of social barriers are privacy concerns, restrictive laws in some countries and the absence of economic incentives that might encourage people to participate in a sensing campaign. Several technical barriers are phone energy savings and the variety of sensors and software for their management. Some existing surveys partially tackle the topic of mobile sensing systems. Published papers theoretically or partially solve the above barriers. We complete the above surveys with new works, review the barriers of mobile sensing systems and propose some ideas for efficiently implementing sensing, fusion, learning, security, privacy and energy saving for any type of mobile sensing system, and propose several realistic research challenges. The main objective is to reduce the learning curve in mobile sensing systems where the complexity is very high.

Elsa Macias

2013-12-01

151

Sencha Touch Mobile JavaScript Framework  

CERN Document Server

This book is a step-by-step tutorial aimed at beginners to Sencha Touch. There is ready sample code explained with essential screenshots for better and quicker understanding. This book is ideal for anyone who wants to gain the practical knowledge involved in using Sencha Touch mobile web application framework to make attractive web apps for mobiles. If you have some familiarity with HTML and CSS, then this book is for you. This book will give designers the skills they need to implement their ideas, and provides developers with creative inspiration through practical examples. It is assumed that

Rao, SSVV Narasimha

2012-01-01

152

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)

153

Editorial: Mobile (March 2010  

Directory of Open Access Journals (Sweden)

Full Text Available 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 Internet, mobile handsets were tightly controlled by mobile network operators (MNOs who developed a vertical ecosystem by integrating the communication infrastructure, the handheld device hardware, and often the applications installed on those devices. The software and protocols running the mobile communications infrastructure and devices are often standardized by membership-only bodies, where large MNOs and manufacturers have a predominant influence. These players invest significant financial resources into shaping the industry along their vision to gain a competitive advantage. A current example is the ongoing battle about the dominant radio access technology for 4G cellular systems: LTE vs. Wimax. These trends have changed recently. Companies such as Google, Nokia, or Openmoko and Industry Alliances such as the Open Handset Alliance are providing the core building blocks, both in hardware as well as software, of increasingly open mobile devices. This issue of the OSBR reviews the relevant trends in the open mobile platform space from a number of perspectives. As the articles in these issue show, there is a lot of exciting ongoing work that brings the power of open source development to the mobile space. This trend is not just confined to the mobile devices as there are also efforts in the development of open mobile infrastructure elements and whole systems.

Thomas Kunz

2010-02-01

154

Mobility of sulfur in thermally altered meteorites  

Science.gov (United States)

Sulfur and volatile trace element (bismuth, cadmium, and thallium) mobility were studied in Allende (CV3) and Leedey (L6) chondrite samples heated for 1 to 168 hours, at 100 C increments, from 400 to 1000 C in a low pressure environment of hydrogen and oxygen. A vacuum system was constructed to heat samples in an open and closed environment. Three trace elements were determined by direct analysis of solids using electrothermal atomic absorption spectroscopy. Sulfur was determined by either iodometric titration or infrared absorption of sulfur dioxide expelled during inductive heating of samples in an oxygen environment. The sulfur gases released during the heating experiments were also analyzed by gas chromatography to better understand the mechanism of sulfur mobility. Sulfur is very mobile in a low pressure oxygen environment (10 exp -8 power atm) at 650 C. Sulfur is also mobilized in a low-pressure hydrogen environment (10 exp -5 power atm) at 650 C, but to a lesser extent. Ordinary chondrites have a constant sulfur content. They are depleted in sulfur by a factor of two compared to CI chondrites. The results are compared to earlier heating experiments completed by the Purdue group, J. Cripe and J. W. Larimer (1976) and E. K. Gibson, Jr. (1976). The loss of volatile trace elements from ordinary chondrites by simple open system metamorphism is not supported by the results obtained.

Primus, Thomas Michael

155

Mobile IPTV: Implications for Education  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile IPTV (Internet Protocol Television provides digital content which users watch as a television broadcast via the Internet on a mobile device. This paper presents the development of IPTV, Suan Dusit Internet Broadcasting, (SDIB to mobile IPTV and discusses the implications for education. Mobile IPTV was developed as a prototype and designed to support users via wireless and mobile networks regardless of the mobile device. The system can be broadcasted through both live and video on demand (VOD utilizing a mobile browser (smart phones, smart TVs, and tablets and web browsers (Windows, Mac, and UNIX. The mobile IPTV prototype has been used and evaluated in this study. The results of student’s behavior when using mobile phones in their learning found that the highest mobile use was for Facebook and Line to communicate and share information with their classmates. The results of student’s attitudes towards using mobile phones in their learning found that the highest mobile use was for sharing information with classmates, sharing learning experiences on social networks, and using mobile phones to support their studies. The result of the IPTV and mobile IPTV system evaluation found that overall mobile IPTV had a higher user satisfaction than IPTV. Furthermore, mobile IPTV creates a good learning experience for the users. This paper provides guidelines in technical issues for helping educational institutions to develop mobile IPTV for education.

Pannee Suanpang

2013-10-01

156

Mobile ad hoc networking  

CERN Document Server

"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

157

Mobile networks architecture  

CERN Document Server

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

158

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

159

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

160

Mobile technology and place  

CERN Document Server

An international roster of contributors come together in this comprehensive volume to examine the complex interactions between mobile media technologies and issues of place. Balancing philosophical reflection with empirical analysis, this book examines the specific contexts in which place and mobile technologies come into focus, intersect, and interact. Given the far-reaching impact of contemporary mobile technology use - and given the lasting importance of the concept and experiences of place - this book will appeal to a wide range of scholars in media and cultural studies, sociology, and phi

Wilken, Rowan

2013-01-01

 
 
 
 
161

Mobile communications handbook  

CERN Document Server

With 26 entirely new and 5 extensively revised chapters out of the total of 39, the Mobile Communications Handbook, Third Edition presents an in-depth and up-to-date overview of the full range of wireless and mobile technologies that we rely on every day. This includes, but is not limited to, everything from digital cellular mobile radio and evolving personal communication systems to wireless data and wireless networksIllustrating the extraordinary evolution of wireless communications and networks in the last 15 years, this book is divided into five sections: Basic Principles provides the esse

Gibson, Jerry D

2012-01-01

162

Windows Azure mobile services  

CERN Document Server

Get up and running with Windows Azure Mobile Services Windows Azure Mobile Services (WAMS) is a turn-key backend solution for applications, mobile or otherwise, to utilize structured storage in the cloud. It includes basic data access functionality and built-in authentication with Microsoft Account, Facebook, Twitter and Google, as well as push notification to the client app. This compact, to the point book gives you just what you need to get up and running with these tools. Demonstrates how to add, update, delete and retrieve data using standard .NET classes or REST-based requestsDescribes h

Johnson, Bruce

2013-01-01

163

Stackable differential mobility analyzer for aerosol measurement  

Science.gov (United States)

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

164

Sampling SIM: Sampling Distributions  

Science.gov (United States)

Created by authors Beth Chance, Bob delMas and Joan Garfield, this webpage provides instructions for teaching sampling distributions using Sampling SIM software. It includes information regarding prerequisite knowledge, common misconceptions, and objectives, as well as links to an activity and a pre/post-test. This is a fairly comprehensive overview of the tools need for sampling distributions. The eight part structure employed by the authors is quite useful in assessing students knowledge gained through this activity.

Chance, Beth; Delmas, Bob; Garfield, Joan

2009-03-16

165

The Mobile Devices and its Mobile Learning Usage Analysis  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The usage of mobile devices for mobile learning is becoming increasingly popular. There is a new brand of students in the universities now-a-days who are easily connected to technology and innovative mobile devices. We attempt to do an analysis on a survey done with university students on mobile device usage for mobile learning purposes. This is to find the learning trends within the student community so that some of these popular practices could be encouraged to enhance lea...

Jacob, S. M.; Issac, B.

2008-01-01

166

Telemedicine Based on Mobile Devices and Mobile Cloud Computing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 smar...

Lidong Wang

2014-01-01

167

Mobile Apps and Romanian Mobile Devices Users’ Preferences  

Digital Repository Infrastructure Vision for European Research (DRIVER)

During the last years the development of mobile technologies generated the formation of a new segment of software industry dedicated to applications for mobile devices. At their turn, mobile apps created new tendencies in software development but also generated important revenues at the level of the specialized industry as well as at global level. From this perspective, the present article, on one hand, describes an image of the mobile infrastructure, mobile applications ...

Tutunea, Mihaela Filofteia

2014-01-01

168

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

169

Persuasive Mobile Health Applications  

Science.gov (United States)

With many industrialized societies bearing the cost of an increasingly sedentary lifestyle on the health of their populations there is a need to find new ways of encouraging physical activity to promote better health and well being. With the increasing power of mobile phones and the recent emergence of personal heart rate monitors, aimed at dedicated amateur runners, there is now a possibility to develop “Persuasive Mobile Health Applications” to promote well being through the use of real-time physiological data and persuade users to adopt a healthier lifestyle. In this paper we present a novel general health monitoring software for mobile phones called Heart Angel. This software is aimed at helping users monitor, record, as well as improve their fitness level through built-in cardio-respiratory tests, a location tracking application for analyzing heart rate exertion over time and location, and a fun mobile-exergame called Health Defender.

Garcia Wylie, Carlos; Coulton, Paul

170

Economic Mobility Project  

Science.gov (United States)

Working with partners from The American Enterprise Institute and The Urban Institute, the Economic Mobility Project is an initiative of The Pew Charitable Trusts. The aim of the Project is to focus public attention on economic mobility through well-thought out scholarly analyses, reports, public events, and discussion. In the "Reports & Research" section, visitors can download papers like "Neighborhoods and the Black-White Mobility Gap" and "Ups and Downs: Does the American Economy Still Promote Upward Mobility?" Visitors can also look over a topical list of their papers as well. Moving on, the "Newsroom" area provides access to the Project's latest press releases and information about their upcoming events. The site is rounded out by a search engine and an area where visitors can sign up to receive the latest news from the Project.

171

jQuery Mobile  

CERN Document Server

Native apps have distinct advantages, but the future belongs to mobile web apps that function on a broad range of smartphones and tablets. Get started with jQuery Mobile, the touch-optimized framework for creating apps that look and behave consistently across many devices. This concise book provides HTML5, CSS3, and JavaScript code examples, screen shots, and step-by-step guidance to help you build a complete working app with jQuery Mobile. If you're already familiar with the jQuery JavaScript library, you can use your existing skills to build cross-platform mobile web apps right now. This b

Reid, Jon

2011-01-01

172

Mobile health assistant  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The Mobile Health Assistant has been developed by Fraunhofer researchers to provide support for patients with chronic illnesses. Comfortable and easy to use, the Assistant is designed to aid patients 24/7 a week.

Weigand, C.; Schmidt, J.

2007-01-01

173

Mobility decline in old age  

DEFF Research Database (Denmark)

Mobility is important for community independence. With increasing age, underlying pathologies, genetic vulnerabilities, physiological and sensory impairments, and environmental barriers increase the risk for mobility decline. Understanding how mobility declines is paramount to finding ways to promote mobility in old age.

Rantakokko, Merja; Mänty, Minna Regina

2013-01-01

174

Interactive TV meets Mobile Computing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The talk presents some recent developments in interactive digital television and discusses the trends and challenges of bringing TV services to mobile devices. Two areas will be addressed: portable use of mobile devices to complement the TV set in the home and mobile TV services while on the move using mobile broadcasting technology.

Rauschenbach, Uwe

2005-01-01

175

Towards a Statistical Physics of Human Mobility  

CERN Document Server

In this paper, we extend some ideas of statistical physics to describe the properties of human mobility. From a physical point of view, we consider the statistical empirical laws of private cars mobility, taking advantage of a GPS database which contains a sampling of the individual trajectories of 2% of the whole vehicle population in an Italian region. Our aim is to discover possible "universal laws" that can be related to the dynamical cognitive features of individuals. Analyzing the empirical trip length distribution we study if the travel time can be used as universal cost function in a mesoscopic model of mobility. We discuss the implications of the elapsed times distribution between successive trips that shows an underlying Benford's law, and we study the rank distribution of the average visitation frequency to understand how people organize their daily agenda. We also propose simple stochastic models to suggest possible explanations of the empirical observations and we compare our results with analogo...

Gallotti, Riccardo; Rambaldi, Sandro

2012-01-01

176

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

177

Network Handle by mobile  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Now a days Administrator has to present to at his organization if he want to put control on the existing system. He has go to individual client to keep an eye, But practically its not possible for any Administrator, now we are providing a facility to user put controller on whole system using his mobile whether he is present in the office or not he will get the all the information on his mobile in form of sms

Shelokar, Nitin D.

2011-01-01

178

Network Handle by mobile  

Directory of Open Access Journals (Sweden)

Full Text Available Now a days Administrator has to present to at his organization if he want to put control on the existing system. He has go to individual client to keep an eye, But practically its not possible for any Administrator, now we are providing a facility to user put controller on whole system using his mobile whether he is present in the office or not he will get the all the information on his mobile in form of sms

Nitin D. Shelokar

2011-06-01

179

Mobile Computation with Functions  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The practice of computing has reached a stage where computers are seen as parts of a global computing platform. The possibility of exploiting resources on a global scale has given rise to a new paradigm -- the mobile computation paradigm -- for computation in large-scale distributed networks. Languages which enable the mobility of code over the network are becoming widely used for building distributed applications. This thesis explores distributed computation with languages which adopt f...

K?rl?, Zeliha D.

2002-01-01

180

Mobile Communication Evolution  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Presently, there is a wide establishment of mobile computing across the globe and the number of subscribers worldwide including Nigeria is on the increase every day. It started with mobile voice communication and has gradually been extended to the capability of sending and receiving data across the cellular networks. Also, the coming of this technology has changed the face of business all over the world and will soon dominate all strata of the society. Therefore, this paper is looking at the ...

Kuboye Bamidele Moses

2014-01-01

 
 
 
 
181

Auctioning Bulk Mobile Messages  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The search for enablers of continued growth of SMS traffic, as well as the take-off of the more diversified MMS message contents, open up for enterprises the potential of bulk use of mobile messaging , instead of essentially one-by-one use. In parallel, such enterprises or value added services needing mobile messaging in bulk - for spot use or for use over a prescribed period of time - want to minimize total acquisition costs, from a set of technically approved providers of ...

Meij, S.; Pau, L-f; Heck, H. W. G. M.

2003-01-01

182

Mobile Learning for All  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper presents research regarding the accessibility design for a mobile learning activity carried out at the Italian National Research Council, Institute for Educational Technologies. In particular, we introduce some considerations about the methodology and the design steps used to build some educational tools on mobile devices that are fully accessible for students with special needs using a compact screen reader (on a Smartphone). Briefly, we outline the common problems of accessing an...

Marco Arrigo; Giovanni Ciprì

2010-01-01

183

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

184

Predicting mobile device battery life  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile phones and other mobile devices have one resource in common that is essential to all of them: battery life. Once the battery is empty, the device is useless until it is recharged. Limited battery life has become an issue especially in the newest mobile devices. The evolution of mobile devices during the last ten years has changed them from mobile phones into multi-functional mobile computers. Today's mobile device can contain for example a web browser, a music player and a navigator. T...

Korhonen, Kaisa

2011-01-01

185

Mobile Computing Trends in Saudi Arabia: An Exploratory Study  

Directory of Open Access Journals (Sweden)

Full Text Available The main purpose of this research was to gain an understanding of the adoption behavior of mobile computing in Saudi Arabia. In particular, it aimed to acquire new insight into mobile computing trends, specifically in Saudi Arabia, in order to develop hypotheses and formulate precise criteria for mobile computing evaluation. In order to achieve these aims, the researcher created a focus group by recruiting eight participants with solid background knowledge of usability engineering and mobile computing. The focus group proposed a four-phase process: determination, qualification, categorization and evaluation of the mobile computing applications developed by Saudi organizations. During the determination phase, two hundred and twenty seven (n=227 mobile applications were determined as having been developed by organizations in Saudi Arabia. During the qualification phase, one hundred and forty two (n=142 mobile applications were qualified. Within the categorization phase, the experts categorized only the qualified applications into a two-level categorization hierarchy. Finally, in the evaluation phase, the qualified applications were evaluated in terms of purpose, platform, visual appearance, content, organization and usability. The results herein revealed that 43% of the mobile applications in Saudi Arabia were M-Government applications, while 57% were M-Business applications. In addition, the study proposed a sample of thirty six (n=36 applications as having statistical significance from all of the mobile applications in Saudi Arabia.

Mutlaq B. Alotaibi

2014-12-01

186

Mobile Subscriber Home Zone Billing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

As a mean to increase the subscriber base, Mobile telecom operators are now trying to target also fixed network subscribers. The main idea is to use the mobile network to provide fixed network rates (cheaper) for the used telecom services when the mobile subscriber is at home and mobile network rates (more expensive) for the used telecom services when the mobile subscriber is not at home. The "home zone" area therefore shall be defined by individual subscriber and the service provider shall b...

Huang, Sicong; Zhang, Yin

2011-01-01

187

This is Mobile TV Broadcasting  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile reception is a new feature evolved in TV broadcasting. Mobile reception requires a robust signal to overcome the complexity of mobile propagation channel. Though DVB-T, primarily intended for fixed terrestrial reception, has limited capacity for mobile TV broadcasting; addition of powerful ?Forward Error Correction?(MPE-FEC); new operational Mode-?4K? and new ?Time Slicing? technique for power conservation in the mobile handset, gave birth to a...

Paul K

2008-01-01

188

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...

Sanjeev Narayan Bal?

2013-01-01

189

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

190

MOBILIZING KNOWLEDGE IN DENMARK  

DEFF Research Database (Denmark)

Knowledge mobilization is not only a new expression in a Danish context. It is also an interesting concept to introduce and discuss. For doesn’t knowledge mobilization have more – or, at least, as much – to do with politics as with education research or education in itself? Doesn’t modern knowledge mobilization have to do with a new political will to mobilize the population by creating a connection between education research and education? On the basis of this report on the Danish efforts with respect to ’knowledge mobilization’, these questions can be answered affirmatively; the extent of knowledge mobilization in relation to education research depends on the political will for it. To what extent is it present in Denmark? On one hand, it is whole-heartedly present in Denmark, where national competitive ability is formulated from an ideal of the population’s competitive ability – a sort of popular competition state – that is to be realized by fulfilling the ambitions for comprehensive knowledge mobilization through education.1 On the other hand, Denmark is having a hard time finding a broad consensus when what is, in principle, supposed to be a common political will is to be translated into knowledge mobilization. This lack of consensus can be traced to the political-administrative level and to the relationship between representatives of education research and representatives of the education system. So, if the concept of knowledge mobilization is not especially exploited in Denmark, it can be seen as a symptom that the will to knowledge mobilization is, in reality – and until now – notstrong enough to deserve the use of the expression mobilization. The other possibility is that what is conceptualized as mobilization in other countries is conceptualized in Denmark by the use of concepts such as transfer of, communication, and knowledge sharing. At any rate, the analysis in this report of the relationship between education research and the education system during the period from 2000 to today shows that a change has, in fact, taken place; a change from speaking less about transfer ofknowledge transfer to speaking more about the need for research communication, knowledge exchange, and knowledge sharing. I have chosen to use the concept of knowledge mobilization in this report to summarize these changes.The report accounts for knowledge mobilization through two analyses. First, an analysis of the question of research affiliation of Danish universities with the Centers for Higher Education (CVUs)/university colleges during the period from 2000 to 2010. Second, an analysis and assessment of how the use of journalism as a form of communication has been idealized – in the period from the year 2003 on – with respect to creating an equal communication between universities and society, including between education research, the education system, and educational practice.

Holm, Claus

2011-01-01

191

Mobility Modeling in Mobile Ad Hoc Networks with Environment-Aware  

Directory of Open Access Journals (Sweden)

Full Text Available Simulation is the most important and widely used method in the research of Mobile Ad hoc NETworks (MANET. The topology of MANET and the mobility of mobile nodes are the key factors that have an impact on the performance of protocols. However, most of the existing works are based on random movement and the fact that the network topology is highly related to the environment of MANET is overlooked. In this paper, we propose a novel Environment-Aware Mobility (EAM model which models a more realistic movement of mobile nodes. Environment objects such as Route and Hotspot are introduced to represent the environment components which are rendered by Scalable Vector Graphics (SVG. It is considered to be a complex model with a combination of existing conventional mobility models and network environments. This paper shows that various MANET environments can be modeled based on this work. A sample environment is also simulated and the results show that the intrinsic characteristics and properties of the environments have a significant influence on the performance of MANET protocols.

Gang Lu

2006-05-01

192

Handbook of Mobile Ad Hoc Networks for Mobility Models  

CERN Document Server

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

193

A Mobile Transaction System for Open Networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The evolution of mobile computing devices and wirelessnetwork has created a new mobile computing environment.Users equipped with portable devices can access, retrieve andprocess information while in mobility. Mobile devices likelaptops; mobile phones have become more powerful dataprocessing elements. Traditional transaction model has movedforwarding to mobile transaction system. Autonomousdecentralized systems represent examples of environments forwhich the use of mobile codes is quite conven...

Anu; Patel, R. B.

2009-01-01

194

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

195

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

196

Mobile propeller dynamometer validation  

Science.gov (United States)

With growing interest in UAVs and OSU's interest in propeller performance and manufacturing, evaluating UAV propeller and propulsion system performance has become essential. In attempts to evaluate these propellers a mobile propeller dynamometer has been designed, built, and tested. The mobile dyno has been designed to be cost effective through the ability to load it into the back of a test vehicle to create simulated forward flight characteristics. This allows much larger propellers to be dynamically tested without the use of large and expensive wind tunnels. While evaluating the accuracy of the dyno, several improvements had to be made to get accurate results. The decisions made to design and improve the mobile propeller dyno will be discussed along with attempts to validate the dyno by comparing its results against known sources. Another large part of assuring the accuracy of the mobile dyno is determining if the test vehicle will influence the flow going into the propellers being tested. The flow into the propeller needs to be as smooth and uniform as possible. This is determined by characterizing the boundary layer and accelerated flow over the vehicle. This evaluation was accomplished with extensive vehicle aerodynamic measurements with the use of full-scale tests using a pitot-rake and the actual test vehicle. Additional tests were conducted in Oklahoma State University's low speed wind tunnel with a 1/8-scale model using qualitative flow visualization with smoke. Continuing research on the mobile dyno will be discussed, along with other potential uses for the dyno.

Morris, Mason Wade

197

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

198

Mobile Communication Evolution  

Directory of Open Access Journals (Sweden)

Full Text Available Presently, there is a wide establishment of mobile computing across the globe and the number of subscribers worldwide including Nigeria is on the increase every day. It started with mobile voice communication and has gradually been extended to the capability of sending and receiving data across the cellular networks. Also, the coming of this technology has changed the face of business all over the world and will soon dominate all strata of the society. Therefore, this paper is looking at the past, present and the future of this technology, the areas of applications and vectors of mobility that are likely to shape the future of the technology. The reviews of the mobile computing technology from the First generation (1G to fourth (4G are presented. The relationships of the generations were presented. The issues relating to the emergence of new technology are also reviewed. The interworking of the technologies and how they helped in promoting the mobile technologies were also reviewed. The deployments issues from First generation (1G to 3G and later to 4G are presented. The paper has reviewed how each of the technology came to being and thus served as an eye opener to those people that are not acquainted with these technologies.

Kuboye Bamidele Moses

2014-01-01

199

Are mobile phones harmful?  

DEFF Research Database (Denmark)

There is increasing public interest in health risks of mobile phone use. Although there is a vast body of material on the biological effects of radiofrequency fields, current risk assessment is still limited. The article describes several hypotheses and results of biological effects such as thermal effect, genetic and carcinogenic effects and cancer related investigations. Mobile phones transmit and receive waves of frequencies mainly at 800-1800 MHz. Findings on the thermal effect of acute exposure to radiofrequency fields were consistent, resulting in an increase of cellular, tissue or body temperature by 1 degree C or more. Guidelines for risk limits are based on this thermal effect. Experimental investigation suggests that radiofrequency fields are not tumor initiators and that if they are related to carcinogenicity, this would be by tumor promotion or by increasing the uptake of carcinogens in cells. Implications of these experimental results on public health concerns are yet unclear. Few epidemiologicalstudies are available on the use of mobile phones or on the radiofrequency exposure and the development of cancer. Most of these studies have no or little quantitative exposure data and they are limited by the small number of observations. Large epidemiological studies are necessary in order to investigate the use of mobile phones on the development of cancer. It should be emphasized that even a small elevated risk may have a large implication for public health, as the use of mobile phones and the exposure is rapidly increasing.

Blettner, M; Berg, Gabriele

2000-01-01

200

Mobile Robot Navigation  

DEFF Research Database (Denmark)

Abstract Robots will soon take part in everyone’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

 
 
 
 
201

SMS Based Mobile Banking  

Directory of Open Access Journals (Sweden)

Full Text Available M-banking has one of the main division of m-commerce. Mobile banking services consists of information inquiry, notifications and alerts, applications and payment transfer.Mobile based application is used for connecting customer handset with bank server for all such services. Current M-banking applications used by banks are facing security challenges for payment transfer banks are using secure payment gateway and other security measures which increases cost and infrastructure for bank but major day-to-day banking applications are inquiries, notifications and alerts. The problem with current banking applications is that they send data directly to customer in plain text form compromising with security.We present SMS based secure mobile banking which enhances security with minimum cost. In this approach bank hides customer transaction data is secure SMS using AES symmetric cryptographic algorithm and send it customer application supported handset.Customer application decrypts data in secure manner

Surapaneni Pujitha*, B Veera Mallu

2013-04-01

202

This is Mobile TV Broadcasting  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile reception is a new feature evolved in TV broadcasting. Mobile reception requires a robust signal to overcome the complexity of mobile propagation channel. Though DVB-T, primarily intended for fixed terrestrial reception, has limited capacity for mobile TV broadcasting; addition of powerful ?Forward Error Correction?(MPE-FEC; new operational Mode-?4K? and new ?Time Slicing? technique for power conservation in the mobile handset, gave birth to a fully enabled mobileTV broadcast standard-DVB-H, as an extension of DVB-T.

Paul K

2008-01-01

203

Instant XenMobile MDM  

CERN Document Server

Get to grips with a new technology, understand what it is and what it can do for you, and then get to work with the most important features and tasks. Written in a user friendly style, this guide will get readers up and running with XenMobile MDM.If you want to run your mobile enterprises on XenMobile, or work on a BYOD strategy within your organization, then this is the ideal book for you. XenMobile MDM comprehensively explores how to set up and use XenMobile to provision, secure, and manage mobile devices.

Lakhani, Aamir

2013-01-01

204

A study of malware detection on smart mobile devices  

Science.gov (United States)

The growing in use of smart mobile devices for everyday applications has stimulated the spread of mobile malware, especially on popular mobile platforms. As a consequence, malware detection becomes ever more critical in sustaining the mobile market and providing a better user experience. In this paper, we review the existing malware and detection schemes. Using real-world malware samples with known signatures, we evaluate four popular commercial anti-virus tools and our data shows that these tools can achieve high detection accuracy. To deal with the new malware with unknown signatures, we study the anomaly based detection using decision tree algorithm. We evaluate the effectiveness of our detection scheme using malware and legitimate software samples. Our data shows that the detection scheme using decision tree can achieve a detection rate up to 90% and a false positive rate as low as 10%.

Yu, Wei; Zhang, Hanlin; Xu, Guobin

2013-05-01

205

An Investigation of Initial Trust in Mobile Banking  

Directory of Open Access Journals (Sweden)

Full Text Available A global explosion in the use of electronic commerce has been witnessed in recent times with the monetary value of products and services. This Research has investigate the factors adoption of an initial trust in electronic banking. The purpose of this research is to examine the effect of initial trust on mobile banking user adoption in Kermanshah province of Iran. Based on the valid responses collected from a survey questionnaire, structural equation modeling (SEM technology was employed to examine the research model. The sample was mainly composed of users having rich mobile Internet experience, which may affect their trust in mobile banking. Future research needs to generalize these results to other samples, such as those users without much mobile Internet experience.

Fakhraddin Maroofi

2013-09-01

206

Mobile agents basic concepts, mobility models, and the tracy toolkit  

CERN Document Server

Mobile agents are software nomads that act as your personal representative, working autonomously through networks. They are able to visit network nodes directly using available computing power and are not limited by platform. This emerging field is now poised to become a cornerstone for new Web-based ubiquitous computing environments. Mobile Agents provides a practical introduction to mobile agent technology and surveys the state of the art in mobile agent research. Students and researchers can use the book as an introduction to the concepts and possibilities of this field and as an overview of ongoing research. Developers can use it to identify the capabilities of the technology to decide if mobile agents are the right solution for them. Practioners can also gain hands-on experience in programming mobile agents through exploration of the source code for a complete mobile agent environment available through the companion website.*Summarizes the state of the art in mobile agent research*Identifies the benefits...

Braun, Peter

2005-01-01

207

ATHLETE: A Mobility and Manipulation System for Mobile Lunar Habitats  

Science.gov (United States)

ATHLETE is a mobility and manipulation system considered by recent Lunar Architecture Teams. This presentation will discuss the possible use of ATHLETE-based mobile habitats for global-scale scientific exploration of the moon.

Wilcox, B. H.

2008-03-01

208

Coulombic Effects in Ion Mobility Spectrometry  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Ion mobility spectrometry (IMS) has been increasingly employed in a number of applications. When coupled to mass spectrometry (MS), IMS becomes a powerful analytical tool for separating complex samples and investigating molecular structure. Therefore, improvements in IMS-MS instrumentation, e.g. IMS resolving power and sensitivity, are highly desirable. Implementation of an ion trap for accumulation and pulsed ion injection to IMS based on the ion funnel has provided considerably increased io...

Tolmachev, Aleksey V.; Clowers, Brian H.; Belov, Mikhail E.; Smith, Richard D.

2009-01-01

209

Land mobile communications satellite  

Science.gov (United States)

The economic value and salient technical and operational characteristics of a European Land Mobile Communication Satellite (LMCS) to complement and supplement the demand for mobile services of Western European countries in the 1995 to 2005 time frames were assessed. A significant future expansion of demand for LCMS services on the part of the public is anticipated. Important augmentations of current service capabilities could be achieved by a satellite service, improving the overall system performances and/or assisting the PTT's in containing their investments in the required infrastructure. The satellite service itself could represent a profitable revenue producer.

Carnebianca, C.; Pavesi, B.; Tuozzi, A.

1986-09-01

210

Mobile telephones and health  

International Nuclear Information System (INIS)

There is at present no clear evidence that the use of mobile telephones presents any health risk, but the possibility that weak radio-frequency signals may have a negative affect cannot be ruled out. Thus it is recommended that care should be taken while waiting for the results of further research. If adverse health effects that are so far unknown should be discovered, then children may be at risk since their nervous system is developing, they stand at the beginning of a long life, and a child's head can absorb more energy than an adult's head. The article recommends that children should refrain from unnecessary use of the mobile telephone

211

Professional mobile application development  

CERN Document Server

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

212

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

213

Mobile network maintenance (GSM)  

CERN Multimedia

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

214

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

215

Mobile Learning Anytime, Anywhere  

Science.gov (United States)

Evidence shows that portable technology tools engage students and promote learning, and the potential for teachers to add academic value to these tools is growing. Some educational institutions are taking the leap to mobile learning (m-learning) by giving out free iPods; however, any technology able to connect to wireless or mobile phone networks or to access Web-based public or private services can be used. As new resources continue to be developed, m-learning takes what we already know about the benefits of e-learning to the next level.

Oksana Hlodan (AIBS;)

2010-10-01

216

Segway robotic mobility platform  

Science.gov (United States)

The Segway Robotic Mobility Platform (RMP) is a new mobile robotic platform based on the self-balancing Segway Human Transporter (HT). The Segway RMP is faster, cheaper, and more agile than existing comparable platforms. It is also rugged, has a small footprint, a zero turning radius, and yet can carry a greater payload. The new geometry of the platform presents researchers with an opportunity to examine novel topics, including people-height sensing and actuation modalities. This paper describes the history and development of the platform, its characteristics, and a summary of current research projects involving the platform at various institutions across the United States.

Nguyen, Hoa G.; Morrell, John; Mullens, Katherine D.; Burmeister, Aaron B.; Miles, Susan; Farrington, Nathan; Thomas, Kari M.; Gage, Douglas W.

2004-12-01

217

Mobile satellite communication networks  

CERN Document Server

Mobile satellite services are set to change with the imminent launch of satellite personal communication services (S-PCS), through the use of non-geostationary satellites. This new generation of satellites will be placed in low earth orbit or medium earth orbit, hence, introducing new satellite design concepts. One of the first texts to cover this rapidly evolving field, this text provides the reader with an overview of mobile satellite systems, from their initial introduction (Inmarsat), current satellite-PCS (referring to such systems as Globalstar), through to Satellite-UMTS and an understa

Sheriff, Ray E

2003-01-01

218

Mobile banking Trends  

Digital Repository Infrastructure Vision for European Research (DRIVER)

M-Banking is fast growing in India as cost effectiveness. It is virtual banking model to used banking in anywhere anytime whenever it requirement. M-Banking service used without paper, so it is help to the society make greener planet. M-Banking provided services without any restrictions. Customers have not visit branch, so its cost beneficiary of all kind. M-Banking means used banking services over through mobile network. Over the last few years, the mobile and wireless market has been one of...

Sunil Lohiya

2012-01-01

219

Transparent mobility in mobile IPv6: an experience report  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The publication of Mobile IPv6 RFC 3775 by the IETF is a breakthrough in the data communications industry to achieve the technology convergence required by ubiquitous mobile devices. MIPv6 not only brings the possibility of innovative distributed applications and services for mobile devices but also allows a transparent use of existing distributed applications even when they have been designed and developed for non-mobile platforms. This work document describes the experience acquired by test...

Kohn, Rodolfo

2005-01-01

220

Transparent mobility in IPv6 mobile: an experience report  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The publication of Mobile IPv6 RFC 3775 by the IETF is a breakthrough in the data communications industry to achieve the technology convergence required by ubiquitous mobile devices. MIPv6 not only brings the possibility of innovative distributed applications and services for mobile devices but also allows a transparent use of existing distributed applications even when they have been designed and developed for non-mobile platforms. This work document describes the experience gained by testin...

Kohn, Rodolfo

2005-01-01

 
 
 
 
221

Controlled Mobility in Mobile Sensor Networks: Advantages, Issues and Challenges  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Recently, wireless self-organizing networks are attracting a lot of interest in the research community. Moreover, in the last decade many mobile devices have appeared in the market. Exploiting mobility in a wireless environment, instead of considering it as a kind of disturbance, is a fundamental concept that the research community is beginning to appreciate now. Of course, the advantages obtainable through the use of the mobility imply the knowledge of the different types of mobility and the...

Natalizio, Enrico; Loscri, Valeria

2013-01-01

222

On the empirics of social mobility: A macroeconomic approach  

Digital Repository Infrastructure Vision for European Research (DRIVER)

What are the causes of social mobility in a society? Whereas this question is of great interest for both researchers and policymakers, empirical studies concerning cross-country evidence usually suffer from small sample biases as intergenerational income elasticities are only available for a small number of countries. In this paper, we provide two measures based on widely available macro data enabling the estimation of social mobility for a large number of countries. Based on these measures w...

Berthold, Norbert; Gru?ndler, Klaus

2014-01-01

223

Irritant effects of formaldehyde exposure in mobile homes.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper reports the irritant effects associated with formaldehyde exposures in mobile homes. Week-long, integrated formaldehyde concentrations were measured using passive monitors in summer and winter while the mobile home residents continued their normal activities. Information on acute health problems, chronic respiratory/allergic illnesses, smoking behavior, demographic variables, and time spent at home was obtained on over 1000 individuals during the sampling period. Measured formaldeh...

Liu, K. S.; Huang, F. Y.; Hayward, S. B.; Wesolowski, J.; Sexton, K.

1991-01-01

224

Barriers to Adoption of Mobile banking: Evidence from Ghana  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The purpose of this research is to investigate the perceived barriers to adoption of mobile banking among consumers, and to assess whether the usage of M-Banking is constraint on the basis of different demographic characteristics such as age, income level, mobile phone usage “experience” and marital status. Data were collected using convenient sampling via self-administered questionnaire in a large university in the Ashanti region of Ghana. A total of usable 189 responses were collected f...

Faisal Iddris

2013-01-01

225

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

226

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 tein the wake of widespread use of mobile telephony.

227

Adding mobility to non-mobile web robots  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In this paper we will show that it is possible to combine mobile agent technology with existing non-mobile data mining applications. The motivation for this is the advantage mobile agents offer in moving the computation closer to the data in a distributed system. This can save bandwidth and increase performance when the data is condensed as a result of data mining.

Sudmann, Nils P.; Johansen, Dag

2000-01-01

228

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.

2005-01-01

229

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

230

Features of using mobile devices ??????????? ????????????? ????????? ????????? ? ?????? ?????????? ????????????? ?????????????? ??????  

Directory of Open Access Journals (Sweden)

Full Text Available Realization of information security organization for corporate information systems with use of mobile devices is discussed. The results of the analysis of vulnerabilities locations are given. The technique of mobile devices im-plementing uses security conditions.??????????? ??????? ??????????? ?????????????? ???????????? ?????? ????????????? ?????????????? ?????? ? ?????????????? ??????????????????. ?????????? ?????????? ???????????? ??????? ???? ??????????? ???????????. ???????????? ???????? ????????? ????????? ????????? ? ?????? ?????????? ????????????.

?. ?. ???????

2013-07-01

231

Features of using mobile devices ??????????? ????????????? ????????? ????????? ? ?????? ?????????? ????????????? ?????????????? ??????  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Realization of information security organization for corporate information systems with use of mobile devices is discussed. The results of the analysis of vulnerabilities locations are given. The technique of mobile devices im-plementing uses security conditions.??????????? ??????? ??????????? ?????????????? ???????????? ?????? ????????????? ?????????????? ?????? ? ?????????????? ?...

???????, ?. ?.; ??????, ?. ?.

2013-01-01

232

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

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

A Mobility Study.  

Science.gov (United States)

The purpose of the mobility study was to determine what number and percentage of secondary, postsecondary, and full-time adult graduates of vocational-technical programs in Oklahoma find or seek employment in the same geographic region of their graduation. It was also determined what number and percentage of graduates leave the region to seek…

Morton, J. B.; And Others

235

MOBILE ROBOT CONTROL SYSTEM  

Directory of Open Access Journals (Sweden)

Full Text Available This paper presents a simple concept of low cost mobile robot control system for source following applications. The robot uses two analog sensors and two independent motors for steering. The control system itself is a modified class D amplifier that generates complementary PWM signals modulated by the difference of the signals from the sensors.

Marius Sebastian Rusu

2012-11-01

236

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.)

237

The mobile servicing system  

Science.gov (United States)

Viewgraphs on the mobile servicing system (MSS) are presented. Topics covered include: MSS overall configuration; MSS (space segment) hierarchy; functional requirements for special purpose dexterous manipulator (SPDM); SPDM configuration; objective of advanced technology development basic requirements for advanced technology; automation and robotics technologies MSS baseline; and automation and robotics technologies planned for incorporation.

Hunter, David G.

238

Mobile lighting apparatus  

Science.gov (United States)

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

239

Security of mobile communications  

CERN Document Server

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

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

 
 
 
 
241

MOBILE ROBOT OD3W  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Diploma works presents a mobile robot OD3W and it's operation. Mobile robot OD3W is a robot width three omnidirectional wheels spaced from each other by 120°. Design and implementation of DC motor controller operating in four quadrants is also presented in the work. Next, a CMOS camera used for mobile robot artificial vision is presented. An algorithm for color object detection and tracking is implemented enabling mobile robot OD3W to move and to track objects autonomously.

S?pilak, Dus?an

2011-01-01

242

Consumer attitudes toward mobile advertising  

Digital Repository Infrastructure Vision for European Research (DRIVER)

PURPOSE OF THE STUDY Academic research in the field of mobile advertising has to date been fragmented and the results have been controversial. The purpose of this research is to study the consumer view of mobile advertising in order to discover how consumers in Finland perceive mobile advertisements. A thorough literature review of previous studies in the fields of social psychology, advertising psychology and mobile advertising was conducted to establish the theoretical foundations of th...

Friman, Julia

2010-01-01

243

WEB SERVICES FOR MOBILE COMPUTING  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 mid...

Piyush M Patil, Kushal Gohil

2012-01-01

244

Mobile-Assisted Language Learning  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The main characteristics of mobile learning (m-learning) are recognized as the potential for learning process to be personalized, spontaneous, informal and ubiquitous. Although learning through mobile phones may take longer time compared to computers, the learners feel a greater sense of freedom of time and place, so that they can take the advantage of spare time to learn a second language when and wherethey are. Mobile-Assisted Language Learning (MALL) deals with the use of mobile technolog...

Tayebeh Mosavi Miangah; Amin Nezarat

2012-01-01

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

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

247

Towards a Statistical Physics of Human Mobility  

Science.gov (United States)

In this paper, we extend some ideas of statistical physics to describe the properties of human mobility. From a physical point of view, we consider the statistical empirical laws of private cars mobility, taking advantage of a GPS database which contains a sampling of the individual trajectories of 2% of the whole vehicle population in an Italian region. Our aim is to discover possible "universal laws" that can be related to the dynamical cognitive features of individuals. Analyzing the empirical trip length distribution we study if the travel time can be used as universal cost function in a mesoscopic model of mobility. We discuss the implications of the elapsed times distribution between successive trips that shows an underlying Benford's law, and we study the rank distribution of the average visitation frequency to understand how people organize their daily agenda. We also propose simple stochastic models to suggest possible explanations of the empirical observations and we compare our results with analogous results on statistical properties of human mobility presented in the literature.

Riccardo, Gallotti; Armando, Bazzani; Sandro, Rambaldi

2012-09-01

248

Laboratory experiments in mobile robot navigation  

International Nuclear Information System (INIS)

Mobile robots have potential applications in remote surveillance and operation in hazardous areas. To be effective, they must have the ability to navigate on their own to desired locations. Several experimental navigational runs of a mobile robot developed have been conducted. The robot has three wheels of which the front wheel is steered and the hind wheels are driven. The robot is equipped with an ultrasonic range sensor, which is turned around to get range data in all directions. The range data is fed to the input of a neural net, whose output steers the robot towards the goal. The robot is powered by batteries (12V 10Ah). It has an onboard stepper motor controller for driving the wheels and the ultrasonic setup. It also has an onboard computer which runs the navigation program NAV. This program sends the range data and configuration parameters to the operator''s console program OCP, running on a stationary PC, through radio communication on a serial line. Through OCP, an operator can monitor the progress of the robot from a distant control room and intervene if necessary. In this paper the control modules of the mobile robot, its ways of operation and also results of some of the experimental runs recorded are reported. It is seen that the trained net guides the mobile robot through gaps of 1m and above to its destination with about 84% success measured over a small sample of 38 runs

249

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.

Christian P. Kunze

2007-02-01

250

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

251

Mobile evaporator corrosion test results  

International Nuclear Information System (INIS)

Laboratory corrosion tests were conducted on eight candidates to select a durable and cost-effective alloy for use in mobile evaporators to process radioactive waste solutions. Based on an extensive literature survey of corrosion data, three stainless steel alloys (304L, 316L, AL-6XN), four nickel-based alloys (825, 625, 690, G-30), and titanium were selected for testing. The corrosion tests included vapor phase, liquid junction (interface), liquid immersion, and crevice corrosion tests on plain and welded samples of candidate materials. Tests were conducted at 80 degrees C for 45 days in two different test solutions: a nitric acid solution. to simulate evaporator conditions during the processing of the cesium ion-exchange eluant and a highly alkaline sodium hydroxide solution to simulate the composition of Tank 241-AW-101 during evaporation. All of the alloys exhibited excellent corrosion resistance in the alkaline test solution. Corrosion rates were very low and localized corrosion was not observed. Results from the nitric acid tests showed that only 316L stainless steel did not meet our performance criteria. The 316L welded interface and crevice specimens had rates of 22.2 mpy and 21.8 mpy, respectively, which exceeds the maximum corrosion rate of 20 mpy. The other welded samples had about the same corrosion resistance as the plain samples. None of the welded samples showed preferential weld or heat-affected zone (HAZ) attack. Vapor corrosion was negligible for all alloys. All of the alloys except 316L exhibited either open-quotes satisfactoryclose quotes (2-20 mpy) or open-quotes excellentclose quotes (<2 mpy) corrosion resistance as defined by National Association of Corrosion Engineers. However, many of the alloys experienced intergranular corrosion in the nitric acid test solution, which could indicate a susceptibility to stress corrosion cracking (SCC) in this environment

252

Mobile evaporator corrosion test results  

Energy Technology Data Exchange (ETDEWEB)

Laboratory corrosion tests were conducted on eight candidates to select a durable and cost-effective alloy for use in mobile evaporators to process radioactive waste solutions. Based on an extensive literature survey of corrosion data, three stainless steel alloys (304L, 316L, AL-6XN), four nickel-based alloys (825, 625, 690, G-30), and titanium were selected for testing. The corrosion tests included vapor phase, liquid junction (interface), liquid immersion, and crevice corrosion tests on plain and welded samples of candidate materials. Tests were conducted at 80{degrees}C for 45 days in two different test solutions: a nitric acid solution. to simulate evaporator conditions during the processing of the cesium ion-exchange eluant and a highly alkaline sodium hydroxide solution to simulate the composition of Tank 241-AW-101 during evaporation. All of the alloys exhibited excellent corrosion resistance in the alkaline test solution. Corrosion rates were very low and localized corrosion was not observed. Results from the nitric acid tests showed that only 316L stainless steel did not meet our performance criteria. The 316L welded interface and crevice specimens had rates of 22.2 mpy and 21.8 mpy, respectively, which exceeds the maximum corrosion rate of 20 mpy. The other welded samples had about the same corrosion resistance as the plain samples. None of the welded samples showed preferential weld or heat-affected zone (HAZ) attack. Vapor corrosion was negligible for all alloys. All of the alloys except 316L exhibited either {open_quotes}satisfactory{close_quotes} (2-20 mpy) or {open_quotes}excellent{close_quotes} (<2 mpy) corrosion resistance as defined by National Association of Corrosion Engineers. However, many of the alloys experienced intergranular corrosion in the nitric acid test solution, which could indicate a susceptibility to stress corrosion cracking (SCC) in this environment.

Rozeveld, A.; Chamberlain, D.B.

1997-05-01

253

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

254

Alert!!! Beware of mobile phones!!! Has a great role in disease transmission, Clean them up!!!! Safe to handle…  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Socially and professionally mobile phones are indispensable and are used in an environment of high microbial flora. This study is alerting to “Beware of Mobile Phones!!! has a great role in disease transmission”. Aims and Objectives: This study deals with the spread of both hospital and community associated microbial infections from the unavoidable mobile phones.Materials and Methods: Sterile samples were obtained from 255 mobile phones and divided into 5 categories of people as follows:...

Sue Elizabeth Shajan, Mohammed Faisal Hashim

2013-01-01

255

School Mobility and School-Age Children's Social Adjustment.  

Science.gov (United States)

This study explored how nonpromotional school changes, a potentially major event for children, were associated with 3 forms of social maladjustment: isolation/withdrawal, affiliation with maladjusted peers, and aggression toward peers. Given that school mobility frequently co-occurs with family transitions, the moderating role of these transitions was investigated. These issues were examined in 2 longitudinal samples of U.S. (N = 1,364) and Canadian (N = 1,447) elementary school children. Propensity weighted analyses controlling for premobility individual, family, and friends' characteristics indicated that children who experienced both school and family transitions were at risk of either social withdrawal (in the Canadian sample) or affiliation with socially maladjusted peers (in the U.S. sample). These findings suggest the importance of considering both the social consequences of school mobility and the context in which such mobility occurs. (PsycINFO Database Record (c) 2014 APA, all rights reserved). PMID:25485607

Dupere, Veronique; Archambault, Isabelle; Leventhal, Tama; Dion, Eric; Anderson, Sara

2014-12-01

256

Governmobility : The Powers of Mobility  

DEFF Research Database (Denmark)

Mobility is often associated with flow and freedom; nonetheless, it is also about power and government. While mobility studies have shown how interpersonal social relations are increasingly supported by mobile technologies, it seems less clear how mobilities are involved in governing societies. Inspired by Michel Foucault’s concept of governmentality and his 1978 lectures on security, territory and population, this article suggests that societies are increasingly governed through mobility, rather than there being government of mobility. If circulation has become a producer of, rather than an obstacle to, societies, then governmobility is a meaningful concept relating to how societies are ruled through connections. In conclusion, the article asks: what are the implications of governmobility for border studies, and more broadly, what are the powers of mobility studies?

Bærenholdt, JØrgen Ole

2013-01-01

257

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.

Özkil, Ali Gürcan

258

Investigations of the inductively coupled plasma source for analyzing NURE water samples at the Los Alamos Scientific Laboratory  

International Nuclear Information System (INIS)

A 3.4-meter direct-reading spectrograph is being used with an inductively coupled plasma source for the simultaneous determination of Ag, Bi, Cd, Cu, Nb, Ni, Pb, Sn, and W in water samples. We have attached a small digital computer to the system in order to obtain intensity data on each element once a second. After the intensities during a run on a sample have stabilized, the computer records the intensity data and outputs the average concentration for each element. To approach the published detection limits, a peristaltic pump must be used to force the water sample into the usual cross-flow nebulizer. We have studied several different nebulizer designs with the goal of improving efficiency and hence sensitivity. One design, the fritted-disk nebulizer, has an efficiency over 60 percent, as compared with the 5 percent efficiency of the original nebulizer

259

Equivalence Testing Mobile Apps  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile apps are often developed and then evolved on more than one mobile operating system. For the publisher of such apps, the problem is how to ensure equivalence of the product on the various platforms, in the sense of acting equivalently with respect to a test set. In this paper we present an approach that tackles this problem from two directions: architecture and testing. First we will explain the role and pitfalls of reference architectures. Then we will present our equivalence testing framework. It is based on mocking components of the target implementation. Instead of implementing mock components for all platforms, our approach is to implement these mocks only once and run them on a central server. On the tested target device, stub components are injected that forward to their server-based counterparts. Thus the exactly same test code is applied to all platform specific implementations.

Denzler Christoph

2012-01-01

260

Mobile extracorporeal shockwave lithotripsy.  

Science.gov (United States)

During the last 18 months, extracorporeal shockwave lithotripsy (ESWL) has been provided at Epsom District Hospital using a mobile unit containing a Dornier HM4 lithotriptor. Patients with upper ureteric and renal stones were selected for treatment, which was performed without anaesthesia or sedation as a day-case procedure; 83 patients were treated, 5 of them with bilateral stones. Seventy patients required 1 treatment session, 17 required 2 and 1 patient required 3. There were no serious complications but 3 patients needed ureteroscopy to remove obstructing stones. The overall success rate was 86%. The cost to treat each NHS patient was 253 pounds. Mobile lithotripsy as a day-case procedure is a safe and cost-effective means of treating urolithiasis and can be performed in a District General Hospital. PMID:1899627

Rajagopal, V; Bailey, M J

1991-01-01

 
 
 
 
261

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)

262

Mobile Autonomous Humanoid Assistant  

Science.gov (United States)

A mobile autonomous humanoid robot is assisting human co-workers at the Johnson Space Center with tool handling tasks. This robot combines the upper body of the National Aeronautics and Space Administration (NASA)/Defense Advanced Research Projects Agency (DARPA) Robonaut system with a Segway(TradeMark) Robotic Mobility Platform yielding a dexterous, maneuverable humanoid perfect for aiding human co-workers in a range of environments. This system uses stereo vision to locate human team mates and tools and a navigation system that uses laser range and vision data to follow humans while avoiding obstacles. Tactile sensors provide information to grasping algorithms for efficient tool exchanges. The autonomous architecture utilizes these pre-programmed skills to form human assistant behaviors. The initial behavior demonstrates a robust capability to assist a human by acquiring a tool from a remotely located individual and then following the human in a cluttered environment with the tool for future use.

Diftler, M. A.; Ambrose, R. O.; Tyree, K. S.; Goza, S. M.; Huber, E. L.

2004-01-01

263

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

264

Atomic mobility under irradiation  

International Nuclear Information System (INIS)

Elastic after-effect measurements were conducted in a fast electron flux to monitor, at every instant of the irradiation the atomic mobility, as derived from the kinetics of directional ordering in a Ag-30at%Zn alloy. The evolution profiles on application or suppression of flux agree well with the predictions of the model generally used to estimate the defect supersaturations under irradiation. Flux and temperature dependence of every one of the parameters which describe the various phases of the increase of the atomic mobility, as the irradiation proceeds, i.e. initial enhancement rate, characteristic time for the build-up of a quasistationary and stationary enhancement levels, were determined. Again full agreement with theory was observed. These results appear as the first systematic experimental check for the phenomenological model. (author)

265

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

266

A mobile surveillance system  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This examination project has been carried out at Aaro Systems AB, a company that sells a computer system for managing, reporting, analysis and consolidation of financial data for company groups. Part of this system consists of a web interface that is used to generate and manage financial reports. My initial assignment was to examine how this interface could be adapted for use on mobile devices. This turned out to be trivial as the web interface already worked above expectation during my init...

Beijar Johansson, Tom

2012-01-01

267

Eine Kategorisierung mobiler Applikationen  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile Applikationen lassen sich auf verschiedene Arten entwickeln. Je nachdem welche Anforderungen an eine Applikation gestellt werden, sollte zwischen einer nativen Umsetzung, einer Webapplikation oder einer Mischung aus beidem gewählt werden. Die Wahl der am besten passenden dieser drei Kategorien ist nicht immer einfach und sollte im Vorfeld genau abgeklärt werden. In diesem Artikel zeigen wir die Eigenheiten dieser drei Kategorien auf und vergleichen sie miteinander anhand von Beispielen und einer fiktiven Ticketing-Applikation.

Hildebrandt Andreas

2012-01-01

268

Mobile Software Licensing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Licensing models and license management systems are going through major changes because the traditional shrink-wrapped software way of licensing does not meet the needs of the modern software market. In particular the emergence of new platforms, such as mobile computing and the assumption by software vendors of clients possessing network connected software, will revolutionize how software is licensed and managed. Software license systems are moving towards more exibility and s...

Dusparic, Ivana

2003-01-01

269

The Mobile Robot RHINO  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Rhino was the University of Bonn's entry in the 1994 AAAI Robot Competition and Exhibition. rhino is a mobile robot designed for indoor navigation and manipulation tasks. The general scientific goal of the rhino project is the development and the analysis of autonomous and complex learning systems. This article briefly describes the major components of the rhino control software as they were exhibited at the competition. It also sketches the basic philosophy of the rhino architecture and disc...

Buhmann, Joachim; Burgard, Wolfram; Cremers, Armin B.; Fox, Dieter; Hofmann, Thomas; Schneider, Frank E.; Strikos, Jiannis; Thrun, Sebastian

1995-01-01

270

Mobile Multimedia Systems  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Recent advances in wireless networking technology and the exponential development of semiconductor technology have engendered a new paradigm of computing, called personal mobile computing. In this paradigm, the basic personal computing and communication device will be an integrated, battery-operated device, small enough to carry with you all the time. This device will be used as a replacement of many items the modern human-being carries around. However, the technological challenges to establi...

Havinga, Paul Johannes Mattheus

2000-01-01

271

Mobility implants: a review.  

Science.gov (United States)

We present a brief review of mobility implants, their contribution, and the experiences derived after almost 40 years since the new concepts of full mobility implants were introduced. In early 1940, experiments with a new material for the making of plastic artificial eyes was also being considered for the making of orbital implants. Methyl-methacrylate (MMA) had proven inert and satisfactory for dental products. The Surgeon Generals office of the Armed Services encouraged further research and experimental work in the development of plastic eyes. The success of the new material sponsored the beginning of great expansion with new concepts for orbital implants. Through a period of more than a decade, the design and types of implants went through three stages. First, the buried implant was introduced, then the exposed integrated followed, and the buried integrated subsequently followed. The path of progress was not smooth. Theoretically correct designs and surgical procedures met unexpected practical difficulties for the ophthalmic surgeon, the patient, and the eye maker. Surgical and technical efforts were carefully reviewed to eliminate the problems encountered, only to have further unforeseen complications arise. Infections, extrusions, and migration of the implant were not uncommon. The exposed integrated implant was eventually abandoned. However, there were some extraordinary successes of mobility. A new era introduced fully buried mobility implants that were more successful. However, this procedure also produced some problems, causing infection (or allergy), extrusion, and migration. Tantalum mesh and gauze gave great promise with the inception of their use. Orbital tissue grew into the material in an astonishing way, making it possible to secure the extraocular muscles and tenons.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:2248721

Danz, W

1990-01-01

272

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 “meet”. 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

273

Mobile Probing and Probes  

DEFF Research Database (Denmark)

Mobile probing is a method, which has been 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; Ørngreen, Rikke

2012-01-01

274

Mobile Zigbee Sensor Networks  

CERN Document Server

OPNET Modeler accelerates network R&D and improves product quality through high-fidelity modeling and scalable simulation. It provides a virtual environment for designing protocols and devices, and for testing and demonstrating designs in realistic scenarios prior to production. OPNET Modeler supports 802.15.4 standard and has been used to make a model of PAN. Iterations have been performed by changing the Power of the transmitter and the throughput will has been analyzed to arrive at optimal values.An energy-efficient wireless home network based on IEEE 802.15.4, a novel architecture has been proposed. In this architecture, all nodes are classified into stationary nodes and mobile nodes according to the functionality of each node. Mobile nodes are usually battery-powered, and therefore need low-power operation. In order to improve power consumption of mobile nodes, effective handover sequence based on MAC broadcast and transmission power control based on LQ (link quality) are employed. Experimental resul...

Anantdeep, Er; Kaur, Er Balpreet

2010-01-01

275

Mobile shearography in applications  

Science.gov (United States)

Modern optical methods such as digital shearography have attracted interest not only for laboratory investigations but also for applications on the factory floor because they can be sensitive, accurate, non-tactile and non-destructive. Optical inspection and measurement systems are more and more used in the entire manufacturing process. Shearography as a coherent optical method has been widely accepted as a useful NDT tool. It is a robust interferometric method to determine locations with maximum stress on various material structures. However, limitations of this technique can be found in the bulky equipment components, the interpretation of the complex shearographic result images and a barely solvable challenge at the work with difficult surfaces like dark absorbing or bright reflecting materials. We report a mobile shearography system that was especially designed for investigations at aircraft constructions. The great advantage of this system is the adjusted balance of all single elements to a complete measurement procedure integrated in a handy body. Only with the arrangement of all involved parameters like loading, laser source, sensor unit and software, it is feasible to get optimal measurement results. This paper describes a complete mobile shearographic procedure including loading and image processing facilities for structural testing and flaw recognition on aircrafts. The mobile system was successfully tested, e.g. with the up-to-date EADS multi-role combat aircraft Eurofighter.

Kalms, Michael

2007-09-01

276

Mobile EEG in epilepsy.  

Science.gov (United States)

The sensitivity of routine EEG recordings for interictal epileptiform discharges in epilepsy is limited. In some patients, inpatient video-EEG may be performed to increase the likelihood of finding abnormalities. Although many agree that home EEG recordings may provide a cost-effective alternative to these recordings, their use is still not introduced everywhere. We surveyed Dutch neurologists and patients and evaluated a novel mobile EEG device (Mobita, TMSi). Key specifications were compared with three other current mobile EEG devices. We shortly discuss algorithms to assist in the review process. Thirty percent (33 out of 109) of Dutch neurologists reported that home EEG recordings are used in their hospital. The majority of neurologists think that mobile EEG can have additional value in investigation of unclear paroxysms, but not in the initial diagnosis after a first seizure. Poor electrode contacts and signal quality, limited recording time and absence of software for reliable and effective assistance in the interpretation of EEGs have been important constraints for usage, but in recent devices discussed here, many of these problems have been solved. The majority of our patients were satisfied with the home EEG procedure and did not think that our EEG device was uncomfortable to wear, but they did feel uneasy wearing it in public. PMID:24060755

Askamp, Jessica; van Putten, Michel J A M

2014-01-01

277

Method of multiplexed analysis using ion mobility spectrometer  

Science.gov (United States)

A method for analyzing analytes from a sample introduced into a Spectrometer by generating a pseudo random sequence of a modulation bins, organizing each modulation bin as a series of submodulation bins, thereby forming an extended pseudo random sequence of submodulation bins, releasing the analytes in a series of analyte packets into a Spectrometer, thereby generating an unknown original ion signal vector, detecting the analytes at a detector, and characterizing the sample using the plurality of analyte signal subvectors. The method is advantageously applied to an Ion Mobility Spectrometer, and an Ion Mobility Spectrometer interfaced with a Time of Flight Mass Spectrometer.

Belov, Mikhail E. (Richland, WA); Smith, Richard D. (Richland, WA)

2009-06-02

278

Barriers to Adoption of Mobile banking: Evidence from Ghana  

Directory of Open Access Journals (Sweden)

Full Text Available The purpose of this research is to investigate the perceived barriers to adoption of mobile banking among consumers, and to assess whether the usage of M-Banking is constraint on the basis of different demographic characteristics such as age, income level, mobile phone usage “experience” and marital status. Data were collected using convenient sampling via self-administered questionnaire in a large university in the Ashanti region of Ghana. A total of usable 189 responses were collected from non-users of mobile banking and retained for analysis using SPSS version 16. The main reasons for rejecting M-Banking were explored using simple descriptive analysis, while chi-square tests were used to assess differences between socio-demographic variables and the rejection factors. The result indicates that majority of respondents do not use any kind of mobile banking service. The four main reasons for rejecting M-Banking were: M-banking requires knowledge and learning; M-banking attract additional banking charges; poor telecommunication network; consumer preference for traditional means of banking instead of mobile enabled banking services. The practical implications of this research is the revealing of the main barriers to Mobile banking adoption and suggesting of appropriate marketing strategies to overcome the obstacles to mobile banking adoption.

Faisal Iddris

2013-07-01

279

THE STRUCTURE OF MOBILITY AND SKILLS AMONG DEAF CHILDREN  

Directory of Open Access Journals (Sweden)

Full Text Available A research of mobility and skills among deaf children (from 7 to 17 years old is presented in this work. The sample of examinees (N=98 is consisted of two subsamples. The first subsample is consisted of deaf children (primary-school and secondary-school level, who have been included in the educative and rehabilitative treatment in the special school (N=29 and the second subsample is consisted of hearing children (primary-school and secondary-school level, who have been chosen by random choice (N=69. For the purpose of the research, a measure instrument named “Test for evaluation of the anthropologic features (extremity movement of mobility and skills“, (TAMV, has been constructed. The aim of the research is to establish mobility and skills of deaf children. In order to test the hypothesis that there are statistically significant differencesamong deaf and hearing children (primary-school and secondary-school level in mobility and skills, discriminative analysis has been applied. The results showed that deaf examinees have been much weaker compared to hearing examinees in mobility and skills and that these differences were statistically significant when applied on the system of variables. The results enriched the knowledge about mobility and skills of deaf children, which can encourage more programs of motor mobility and skills improvement to be constructed.

Husnija HASANBEGOVI?

2010-11-01

280

Tethered Contactless Mobile Nuclear Environment Monitoring Robot  

International Nuclear Information System (INIS)

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

 
 
 
 
281

Securing mobile code.  

Energy Technology Data Exchange (ETDEWEB)

If software is designed so that the software can issue functions that will move that software from one computing platform to another, then the software is said to be 'mobile'. There are two general areas of security problems associated with mobile code. The 'secure host' problem involves protecting the host from malicious mobile code. The 'secure mobile code' problem, on the other hand, involves protecting the code from malicious hosts. This report focuses on the latter problem. We have found three distinct camps of opinions regarding how to secure mobile code. There are those who believe special distributed hardware is necessary, those who believe special distributed software is necessary, and those who believe neither is necessary. We examine all three camps, with a focus on the third. In the distributed software camp we examine some commonly proposed techniques including Java, D'Agents and Flask. For the specialized hardware camp, we propose a cryptographic technique for 'tamper-proofing' code over a large portion of the software/hardware life cycle by careful modification of current architectures. This method culminates by decrypting/authenticating each instruction within a physically protected CPU, thereby protecting against subversion by malicious code. Our main focus is on the camp that believes that neither specialized software nor hardware is necessary. We concentrate on methods of code obfuscation to render an entire program or a data segment on which a program depends incomprehensible. The hope is to prevent or at least slow down reverse engineering efforts and to prevent goal-oriented attacks on the software and execution. The field of obfuscation is still in a state of development with the central problem being the lack of a basis for evaluating the protection schemes. We give a brief introduction to some of the main ideas in the field, followed by an in depth analysis of a technique called 'white-boxing'. We put forth some new attacks and improvements on this method as well as demonstrating its implementation for various algorithms. We also examine cryptographic techniques to achieve obfuscation including encrypted functions and offer a new application to digital signature algorithms. To better understand the lack of security proofs for obfuscation techniques, we examine in detail general theoretical models of obfuscation. We explain the need for formal models in order to obtain provable security and the progress made in this direction thus far. Finally we tackle the problem of verifying remote execution. We introduce some methods of verifying remote exponentiation computations and some insight into generic computation checking.

Link, Hamilton E.; Schroeppel, Richard Crabtree; Neumann, William Douglas; Campbell, Philip LaRoche; Beaver, Cheryl Lynn; Pierson, Lyndon George; Anderson, William Erik

2004-10-01

282

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

283

Sampling Error  

Science.gov (United States)

This one page article, created by Statistics Canada, describes the meaning behind random sampling error. It points our the relationship of the random sampling error with the sample size, population size, variability of the characteristic, sampling plan, and measuring sampling error. While brief, this provides valuable information and also links users to additional resources concerning statistics.

2009-01-07

284

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

285

Mobile communities importance of mobile learning in Indian education system  

Digital Repository Infrastructure Vision for European Research (DRIVER)

When the United States thinks about developing an 'iPhone University', developing economies envision a 'Mobile University'. Technology in Education has rippled from Distance-learning to e-Learning and now to m-Learning. Going forward into the 21st Century, emerging markets are witnessing a substantial rise in the use of hand-held mobile devices. Convergence of Mobile Technology and Education, therefore, is a potential breakthrough in the art of Teaching and Learning. This thesis aims to exten...

Gupta, Neha

2008-01-01

286

Industrial Mobile Application Design and Development : Transformer Monitoring Mobile Application  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This thesis shows how mobile communication and information technology can be used on power industry domain. More specifically, the goal of this thesis is to design and develop a software concept demonstrator that gives operators a better possibility to check the status on ABB high voltage products, utilizing mobile devices, such as mobile phones and tablets. At the beginning of this thesis, user study and information gathering was conducted at ABB Corporate Research Center, Västerås, Sweden...

Liu, Jing

2013-01-01

287

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

288

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

289

The handbook of mobile middleware  

CERN Document Server

Device miniaturization, wireless computing, and mobile communication are driving ubiquitous, pervasive, and transparent computing. Supporting these rapidly evolving technologies requires middleware solutions that address connectivity-level, location-dependent, and context-dependent issues.The Handbook of Mobile Middleware is an exhaustive overview of recent developments in the various fields related to this infrastructure software. Authored by internationally recognized experts, this advanced reference integrates valuable insight gained from actual system deployments. It begins by presenting mobile middleware requirements and technologies, then offers solutions organized by such challenges as mobility/disconnection handling, location-based support, and context-based support. This volume focuses on the application domains in which mobile middleware has demonstrated its feasibility and effectiveness and details the pros, cons, and trade-offs of each solution.The book also analyzes future directions of mobile ap...

Bellavista, Paolo

2006-01-01

290

Mobile Education-proposing a Mobile Learning Model for Designing an Institutional Mobile Scenario  

Directory of Open Access Journals (Sweden)

Full Text Available Inspired by the theory of activity, the context model and previous researches, this paper proposes a model bringing together the key concepts of a mobile learning environment based on the concept of contextualization, major advantage of mobile learning. It details the learning mobile environment, its main components, its characteristics and the different interactions between them. The proposed model meets the constraint of mobile learning complementarity, allowing flexibility in its integration with classroom learning such as e-learning or blended learning. It mainly improves upon conventional learning methods and advocates others such as situated, interactive and connectivist learning. Indeed, research several that mobile learning enhances the educational program and reinstates it into the daily lives of learners through their own mobile technologies. Properly implemented, Mobile Learning can make learning activities as fun, as beneficial and certainly more motivating for learners and educators especially in the mobile era where traditional learning methods don’t meet all learners’ needs. Mobiles, connected and in constant social interaction, learners require learning systems more adapted to their communicative and interactive nature. This paper is an early implementation of this concept in learning systems. It aims to help educators to integrate mobile technologies into their learning activities without alternating their educational goals.

Ouiame Filali Marzouki

2014-05-01

291

Mobile Services and Network Proximity  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper discusses several practical use cases for deploying network proximity in mobile services. Our research presents here mobile services oriented for either discovering new data for mobile subscribers or for delivering some customized information to them. All applications share the same approach and use the common platform, based on the Wi-Fi proximity. The typical deployment areas for our approach are context-aware services and ubiquitous computing applications. Our ...

Namiot, Dmitry; Sneps-sneppe, Manfred

2013-01-01

292

Cross Platform Mobile Application Development  

Directory of Open Access Journals (Sweden)

Full Text Available Now a days mobiles are replacing the use of laptops &desktops on large scales. The mobile operating system companies provide more resources for the creation of applications as per the users requirement. But due the use of various operating system, it becomes problem for developer to develop the application for each operating system individually. So this has been solved by the cross platform mobile application development tool which provide more scope in less time.

Mrs. V.C. Kulloli#1 , Ashish Pohare#2 , Sujit Raskar#2 , Tania Bhattacharyya#2 , Shashikant Bhure

2013-05-01

293

Information Technologies supporting students’ mobility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Purpose: ESMOS is a project financially supported by the SOCRATES/Minerva European Commission initiative, which aims to enhance student mobility through online support. The ESMOS partnership has explored existing practice in student mobility support, particularly investigating how technology is being utilised to support students. It has also examined the factors that affect exchange students and has identified problems with meeting student mobility numbers.Design/methodology/approach: The r...

Morawska-walasek, D.; Pia?tkowski, J.; Walasek, T.

2007-01-01

294

Mobile parking assistant in Ljubljana  

Digital Repository Infrastructure Vision for European Research (DRIVER)

With the development of smartphones, the use of mobile applications today already covers a lot of everyday life areas and also help us to solve our everyday problems. The objective of the thesis was to create a mobile application for the Android mobile platform, which would help the user in selecting the most suitable parking space. The application includes all public parking places in Ljubljana. At the beginning the Android operating system is presented and the individual component of Androi...

Volaric?, Rok

2012-01-01

295

Building Evacuation with Mobile Devices  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The rapidly growing world population and increasingly dense settlements demand ever-larger and more complex buildings from today's engineers. In comparison to this technological progress, a building's equipment for emergency evacuation has been hardly developed further. This work presents a concept for a building evacuation system based on mobile devices. Furthermore, various algorithms for route planning with mobile devices and for indoor localization of mobile devices are addressed.

Merkel, Sabrina

2014-01-01

296

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

297

Mobile Intelligent Autonomous Systems  

Directory of Open Access Journals (Sweden)

Full Text Available Mobile intelligent autonomous systems (MIAS is a fast emerging research area. Although it can be regarded as a general R&D area, it is mainly directed towards robotics. Several important subtopics within MIAS research are:(i perception and reasoning, (ii mobility and navigation,(iii haptics and teleoperation, (iv image fusion/computervision, (v modelling of manipulators, (vi hardware/software architectures for planning and behaviour learning leadingto robotic architecture, (vii vehicle-robot path and motionplanning/control, (viii human-machine interfaces for interaction between humans and robots, and (ix application of artificial neural networks (ANNs, fuzzy logic/systems (FLS,probabilistic/approximate reasoning (PAR, Bayesian networks(BN and genetic algorithms (GA to the above-mentioned problems. Also, multi-sensor data fusion (MSDF playsvery crucial role at many levels of the data fusion process:(i kinematic fusion (position/bearing tracking, (ii imagefusion (for scene recognition, (iii information fusion (forbuilding world models, and (iv decision fusion (for tracking,control actions. The MIAS as a technology is useful for automation of complex tasks, surveillance in a hazardousand hostile environment, human-assistance in very difficultmanual works, medical robotics, hospital systems, autodiagnosticsystems, and many other related civil and military systems. Also, other important research areas for MIAScomprise sensor/actuator modelling, failure management/reconfiguration, scene understanding, knowledge representation, learning and decision-making. Examples ofdynamic systems considered within the MIAS would be:autonomous systems (unmanned ground vehicles, unmannedaerial vehicles, micro/mini air vehicles, and autonomousunder water vehicles, mobile/fixed robotic systems, dexterousmanipulator robots, mining robots, surveillance systems,and networked/multi-robot systems, to name a few.Defence Science Journal, 2010, 60(1, pp.3-4, DOI:http://dx.doi.org/10.14429/dsj.60.92

Jitendra R. Raol

2010-01-01

298

Mobile phones and cancer  

International Nuclear Information System (INIS)

This presentation was given at the Annual Conference of Engineering and Physical Sciences in Medicine (EPSM 2002) in New Zealand but no paper was written. The power point presentation summarises the status of the research carried our over the last decade on the biological effects of the RF radiation, including thermal and non-thermal effects, epidemiological and relevant laboratory studies. It is concluded that there is no real scientific evidence that mobile phones cause cancer. However, since definitive epidemiological studies may be impossible to do, it cannot be proved that a cancer connection is impossible. Copyright (2002) Australasian Radiation Protection Society Inc

299

Mobiles optisches Analysegerät  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The invention describes a mobile optical analysis device (1) comprising a first light source (2) for illuminating a first region (3) using a first illumination light, a second light source (4) for illuminating a second region (5) using a second illumination light, wherein the second region (5) is a subregion of the first region (3), an apparatus for recording an image of the first region, an analysis detector (8) for analysing analysis light which is scattered and/or reflected and/or emitted ...

Großer, V.; Gerritzen, A.; Jung, E.

2011-01-01

300

Secure Mobile Trade Agent  

Directory of Open Access Journals (Sweden)

Full Text Available 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 of public key cryptosystem with distributed object technology make this proposed scheme more secure and efficient than the already existed schemes.

Musbah M. Aqe

2007-01-01

 
 
 
 
301

Trigonometry via Mobile Device  

Science.gov (United States)

Students investigate the relationships between angles and side lengths in right triangles with the help of materials found in the classroom and a mobile device. Using all or part of a meter stick or dowel and text books or other supplies, students build right triangles and measure the angles using a clinometer application on an Android® (phone or tablet) or iOS® device (iPhone® or iPad®). Then they are challenged to create a triangle with a given side length and one angle. The electronic device is used to measure the accuracy of their constructions.

IMPART RET Program,

302

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

303

Mutual Mobile Membranes with Timers  

CERN Document Server

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.

Aman, Bogdan

2009-01-01

304

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

305

Speech Recognition on Mobile Devices  

DEFF Research Database (Denmark)

The enthusiasm of deploying automatic speech recognition (ASR) on mobile devices is driven both by remarkable advances in ASR technology and by the demand for efficient user interfaces on such devices as mobile phones and personal digital assistants (PDAs). This chapter presents an overview of ASR in the mobile context covering motivations, challenges, fundamental techniques and applications. Three ASR architectures are introduced: embedded speech recognition, distributed speech recognition and network speech recognition. Their pros and cons and implementation issues are discussed. Applications within command and control, text entry and search are presented with an emphasis on mobile text entry.

Tan, Zheng-Hua; Lindberg, BØrge

2010-01-01

306

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

307

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)

308

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

309

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

310

GLIMMPSE Lite: Calculating Power and Sample Size on Smartphone Devices  

Science.gov (United States)

Researchers seeking to develop complex statistical applications for mobile devices face a common set of difficult implementation issues. In this work, we discuss general solutions to the design challenges. We demonstrate the utility of the solutions for a free mobile application designed to provide power and sample size calculations for univariate, one-way analysis of variance (ANOVA), GLIMMPSE Lite. Our design decisions provide a guide for other scientists seeking to produce statistical software for mobile platforms. PMID:25541688

Munjal, Aarti; Sakhadeo, Uttara R.; Muller, Keith E.; Glueck, Deborah H.; Kreidler, Sarah M.

2014-01-01

311

Slovenian Mobile Radiological Laboratory - Preparedness Programme  

International Nuclear Information System (INIS)

Full text: The overall monitoring programme of radioactivity in Slovenia consists of three major parts: a general monitoring programme of radioactivity in the country, three specific monitoring programmes, and emergency monitoring programmes. Specific monitoring programmes are performed in the surroundings of nuclear facilities. The most comprehensive one is the monitoring programme around the Krsko NPP. It consists of three sub-programmes named A, B and C, programme C being the emergency preparedness programme of the Ecological Laboratory with a Mobile Unit. While Programme A represents the regular monitoring programme of the environment, Programme B defines sampling locations, representative samples and frequencies of sampling for control measurements of liquid and gaseous effluents. The objectives of Programme C are intercomparison measurements between Mobile Radiological Laboratory (MRL) and Krsko NPP, overall tests of emergency capabilities of MRL, identification of any actual or potential weaknesses in equipment, procedures, or team skills, team acquaintance with the surroundings of the NPP, routes, measuring locations and normal radiological parameters in the environment, and finally improvements of the response plans, procedures and co-ordination. Programme C provides for an adequate and efficient response in radiological emergencies and is of exceptional importance. The paper presents training and drills, which are organised three times per year in the surrouganised three times per year in the surrounding of NPP Krsko, and lessons learned are discussed. (author)

312

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.)

313

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

314

Autonomous mobile platform  

Science.gov (United States)

This paper presents the design and development of a partially intelligent mobile platform. The mobile robot derives its intelligence from sensors such as ultrasonic range finders, a mouse and a set of microswitches. Motion is assumed to bee on a plane two dimensional surface. The platform consists of two front wheels and two rear wheels. While the front wheels are undriven, the rear wheels are individually driven by two motors to realize both forward movement as well as steering. Ultrasonic range finders have been employed to plan an obstacle free path. A mouse like arrangement is fitted in the platform's underside, with the mouse ball in contact with the surface of travel, to help the host to keep track of the platform's current position. A single chip microcontroller based card has been designed for communication between the platform and the host IBM PC. This is part of the work carried out at the department of Electronics, S.J. College of Engineering, Mysore, India.

Prakashan, A.; Samuel, S. D.; Shankar, J.; Vishal, Moondhra; Shivaswaroopa, S.; Vijayasimha, K.

1993-05-01

315

Mobile contingency unit  

Energy Technology Data Exchange (ETDEWEB)

This paper is aimed at presenting what is already a reality in TRANSPETRO in the area covered by OSBRA, a pipeline that carries by-products to the Mid-West region of Brazil. In order to meet the needs of covering occasional accidents, TRANSPETRO counts on a standardized system of emergency management. It is a great challenge to secure an efficient communication along the 964 km of extension, considering that there are shadow zones where it is not possible to use conventional means of communication such as mobile telephony and internet. It was in this context that the Mobile Contingency Unit Via Satellite - MCU was developed, to extend the communication facilities existing in fixed installations to remote places, mainly the pipeline right of ways. In case of emergency, simulation and work in the pipeline right of way, MCU is fully able to provide the same data, voice, closed-circuit TV and satellite video conference facilities that are available in any internal area of the PETROBRAS system. (author)

Silva, Sergio O. da; Magalhaes, Milton P. de [Petroleo Brasileiro S.A. (PETROBRAS), Rio de Janeiro, RJ (Brazil); Junqueira, Rodrigo A.; Torres, Carlos A.R. [PETROBRAS Transporte S/A (TRANSPETRO), Rio de Janeiro, RJ (Brazil)

2009-07-01

316

Intelligent mobile robots  

International Nuclear Information System (INIS)

For the purpose of the application to remote working apparatuses in nuclear power plants and others, the software and moving mechanism of mobile robots that automatically accomplish the movement by only specifying the destination were manufactured for trial. The software has the function of searching a path to determine the quasi-shortest path and the function of controlling execution to control the action of the robots and guide to the destination. By taking heuristics into the method of searching a path and utilizing ultrasonic waves for the function of sight as they can easily detect distance though the information quantity is small, the execution was accelerated. By the simulation examination and the experiment using a mobile apparatus made for trial, it was confirmed that the route plan was able to be made almost in real time, and the appearance of an unknown obstacle was detected before collision and able to be reasonably avoided by the revision of the plan. An environment model, a route planner, the program for controlling execution, the makeup and control of moving function and the experiment on the movement are reported. The shortening of the processing time by dealing with unconfirmed echo and simplifying the writing in a map is a future problem. (Kako, I.)

317

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

318

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

319

Individual mobility: issues and assessment  

Energy Technology Data Exchange (ETDEWEB)

Problems relating to mobility will intensify in developing countries due to explosive growth in motorization. In the Western countries, individual travel needs will change as a result of demographics (e.g. an increase in the elderly population, working women and single person households), and new information and communication technology. Increased congestion and global warming are the principal concerns that impact mobility. To respond to these concerns, significant mobility improvements can be realized by replicating successful mobility strategies that have been implemented in some cities throughout the world. However, a more fundamental reappraisal will be necessary that considers mobility in an overall sustainability context. Intelligent transportation systems (ITS) may provide a framework for a new mobility infrastructure that enables implementation of a dynamic transportation system. Such a system can adapt on a real-time basis to customer needs and social concerns. ITS enables pricing and control strategies to be more easily utilized on an episodic basis. Development of a rational approach to sustainable mobility requires the public and private sectors as well as various stakeholders to develop a shared vision of the future, since mobility goes beyond national and competitive interests. (author) 3 figs.

Roos, D. [Massachusetts Inst. of Technology, Center for Technology, Policy and Industrial Development, Cambridge, MA (United States)

1996-11-01

320

Education & Mobility. CEE DP 100  

Science.gov (United States)

Regional labour mobility has long been viewed as a crucial component in the functioning of the labour markets of different countries. Indeed, the study of regional labour mobility has moved towards the top of the research agenda, especially in Europe, where regional unemployment differentials have been persistently larger than in the United…

Machin, Stephen; Pelkonen, Panu; Salvanes, Kjell G.

2008-01-01

 
 
 
 
321

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

322

The concept of "Mobile sky"  

Directory of Open Access Journals (Sweden)

Full Text Available  The navigation and control for light aviation based on mobile communication service in the bottom airspace have been proposed. The main principles of “Mobile sky” conception have been formulated and grounded. In the paper have been represented the main advantages for use this conception in Ukraine.

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2009-03-01

323

Datacasting In The Mobile Environment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Datacasting employs the excess bandwidth from digital television signals for use in one-way data transmission, and it is being used successfully for high-speed downloads at fixed locations. There is considerable interest in extending datacast usage to mobile users, although there are reception challenges in the mobile enviro...

Kent Chamberlin; Benjamin McMahon; Scott Valcourt

2008-01-01

324

Sampling Distributions  

Science.gov (United States)

This applet simulates and plots the sampling distribution of various statistics (i.e. mean, standard deviation, variance). The applet allows the user to specify the population distribution, sample size, and statistic. An animated sample from the population is shown and the statistic is plotted. This can be repeated to produce the sampling distribution of the statistic. After the sampling distribution is plotted it can be compared to a normal distribution by overlaying a normal curve. These features make it useful for introducing students in a first course to the idea of a sampling distribution. The site also includes instructions and exercises.

Lane, David M.

2009-11-26

325

Mobility Model for Tactical Networks  

Science.gov (United States)

In this paper a synthetic mobility model which represents behavior and movement pattern of heterogeneous units in disaster relief and battlefield scenarios is proposed. These operations usually take place in environment without preexisting communication infrastructure and units thus have to be connected by wireless communication network. Units cooperate to fulfill common tasks and communication network has to serve high amount of communication requests, especially data, voice and video stream transmissions. To verify features of topology control, routing and interaction protocols software simulations are usually used, because of their scalability, repeatability and speed. Behavior of all these protocols relies on the mobility model of the network nodes, which has to resemble real-life movement pattern. Proposed mobility model is goal-driven and provides support for various types of units, group mobility and realistic environment model with obstacles. Basic characteristics of the mobility model like node spatial distribution and average node degree were analyzed.

Rollo, Milan; Komenda, Antonín

326

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

327

On using Mobile IP Protocols  

Directory of Open Access Journals (Sweden)

Full Text Available The recent advances in wireless communication technology and the unprecedented growth of the Internet have paved the way for wireless networking and IP mobility. Mobile Internet protocol has been designed within the IETF to support the mobility of users who wish to connect to the Internet and maintain communications as they move from place to place. This study describes and summarizes the current Internet draft for mobile IP (MIPv4 with its major components: agent discovery, registration and tunneling. In addition, we outline the available encapsulation techniques and route optimization procedure. In the end, we describe the design of the new protocol for transparent routing of IPv6 packets to mobile IPv6 nodes operating in the Internet.

Fayza A. Nada

2006-01-01

328

Scattering and mobility in indium gallium arsenide channel, pseudomorphic high electron mobility transistors (InGaAs pHEMTs)  

International Nuclear Information System (INIS)

Extensive transport measurements have been completed on deep and shallow-channelled InGaAs p-HEMTs of varying growth temperature, indium content, spacer thickness and doping density, with a view to a thorough characterisation, both in the metallic and the localised regimes. Particular emphasis was given to MBE grown layers, with characteristics applicable for device use, but low measurement temperatures were necessary to resolve the elastic scattering mechanisms. Measurements made in the metallic regime included transport and quantum mobility - the former over a range of temperatures between 1.5K to 300K. Conductivity measurements were also acquired in the strong localisation regime between about 1.5K and 100K. Experimentally determined parameters were tested for comparison with those predicted by an electrostatic model. Excellent agreement was obtained for carrier density. Other parameters were less well predicted, but the relevant experimental measurements, including linear depletion of the 2DEG, were sensitive to any excess doping above a 'critical' value determined by the model. At low temperature (1.5K), it was found that in all samples tested, transport mobility was strongly limited at all carrier densities by a large q mechanism, possibly intrinsic to the channel. This was ascribed either to scattering by the long-range potentials arising from the indium concentration fluctuations or fluctuations in the thickness of the channel layer. This mechanism dominates t channel layer. This mechanism dominates the transport at low carrier densities for all samples, but at high carrier density, an additional mechanism is significant for samples with the thinnest spacers tested (2.5nm). This is ascribed to direct electron interaction with the states of the donor layer, and produces a characteristic transport mobility peak. At higher carrier densities, past the peak, quantum mobility was found only to increase monotonically in value. Remote ionised impurity scattering while significant, particularly for samples with intermediate (5nm) and thin (2.5nm) spacers, was never found to dominate. As has been reported for similar structures, anisotropy of transport mobility was found, with the [011] direction having a higher mobility than the [011-bar] direction ((100) GaAs substrate nominally aligned ±0.1 deg.). Intermediate directions had intermediate mobilities. The anisotropy increased with indium content and growth temperature, and persisted to at least 300K. In addition, we found that quantum mobility was independent of direction suggesting that the mechanism responsible is dominated by short-range, large q scattering. Both transport and quantum, mobility were reduced when donor layer correlations were removed using the process of bias cooling. Quantum mobility was more sensitive to this process although excess donors in the doping layer also affected values at high carrier densities. Applying Matthiessen's rule to both correlated and uncorrelated transport mobility data, strongly suggested that remote ionised impurity scattering was consistent with theory for samples with a 5nm spacer, but that an additional mechanism, as mentioned above, must exist in the samples with a 2.5nm spacer. Variable temperature studies further revealed that at low carrier densities, weak localisation was present, with strong, temperature dependent, activated transport also apparent at higher depletion. At high carrier densities in the thinnest spacer samples (2.5nm), a transport mobility peak evolved with decreasing temperature. The mechanism responsible was undetermined, but it was reminiscent of weak localisation-like behaviour. (author)

329

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

330

Mobile Health 2010  

Science.gov (United States)

Mobile phone applications (or "apps") and their use in the world of healthcare information is the subject of this recent report from the Pew Research Center's Internet & American Life Project. Authored by associate director Susannah Fox, this 15-page report was released in October 2010, and it looks at how different cell phone users use their phones to look up health or medical information. The report was based on interviews conducted between August 9th and September 13th, 2010 with 1000 participants. Visitors who read the report will learn that 17% of all cell owners have used their phone to look up health or related medical information, and that 9% of cell owners have "apps" that help them track or manage their health. Additionally, the report contains detailed tables and graphs, along with demographic details that are helpful for those who require a more detailed portrait.

331

RELATIONSHIP BETWEEN M-LEARNING AWARENESS AND INVOLVEMENT IN MOBILE TECHNOLOGY OF THE COLLEGE STUDENTS  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The study was intended to find out the Relationship between M-learning awareness and involvement in mobile technology of the college students in Cuddalore and Villupuram, Districts of Tamil Nadu, India. Random Sampling Technique was used to compose a sample of 1050 college students Mean, Standard Deviation, t value and r value were calculated for the analysis of data. The result revealed that there is significant relationship between M-learning awareness and involvement in mobile technology o...

Naga Subramani, P. C.; Sharmila, V.

2014-01-01

332

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

333

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

334

Mobile Tourism Guide in the Context of Thai National Parks: The Effects of Mobile Design Qualities in TAM2  

Directory of Open Access Journals (Sweden)

Full Text Available This study aims to predict the level of international tourists’ intention to use MTG in the context of Thai national parks, and investigates the roles of mobile design qualities (content quality, appearance quality, and interaction quality through perceived usefulness and perceived ease-of-use on intention. The mixed-method via exploratory sequential design is conducted this study. The qualitative approach is started in the first stage then quantitative approach is employed to analyze the large sample size. This study extends the TAM2 with mobile design qualities. The results shows the high level of international tourist’ intention to use MTG. It indicates that the international tourists will intent to the mobile tourism guide (MTG, if the MTG is provided for them. The direct factors of tourists’ intention are perceived usefulness, perceived ease-of-use, mobile content quality and mobile appearance quality. The most direct effect is mobile content quality. The qualities of content and appearance have the positive roles on perceived usefulness, while the qualities of appearance and interaction have the indirect effects through perceived ease-of-use on tourists’ intention. The proposed model provides the body of knowledge in the context of MTG, especially the factors of international tourists’ intention to use MTG.

Trakulmaykee Numtip

2014-01-01

335

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

336

Probability Sampling  

Science.gov (United States)

This site, created by author William M.K. Trochim, describes in detail five different types of random sampling. Some of these types include: simple random, stratified random, systematic random, cluster random, multi-stage sampling. The author provides examples, definitions, and the procedures behind the methods. Overall, this site provides a nice overview of probability sampling.

Trochim, William M.

2008-12-30

337

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

338

An Investigation about obstacles of Mobile Commerce in Iran (A case study in Saravan City  

Directory of Open Access Journals (Sweden)

Full Text Available The main purpose of the present paper is an investigation about obstacles and challenges in development of mobile commerce in Iran. To notice the present infrastructure and the ratio of high influence of mobile commerce and its availability and being at the hand of common people as one of main tools in mobile commerce, in the world as well as in Iran, people have tendency and are going for mobile commerce and it is also attracting general attentions of people. In this paper it investigate the unique benefits of mobile commerce using a descriptive field survey to access barriers and obstacles which are facing to the development of mobile commerce. Samples and statistical research population are teachers in Saravan city of Sistan and Baluchestan in south of Iran which are using mobile phone for paying light and water bills or doing business and financial transactions. The samples were choosing among 300 of so-call teachers which selected in order random tools of data collection was questionnaire which collected after 15 days. The data were analyzed by SPSS software. The result of this analysis is showing that information technology, in the development of mobile commerce is facing many problems and challenges such as: the limitation in extension of internet band, inappropriate user accepted connector mobile equipments, none existence of using mobile commerce culture in trade, lack of the security feeling for users technical equipment limitations and also mobile network stability. And scale of importance of each one from the view of users is different. At the end to overcome these problems and barriers and to accelerate the development of mobile commerce which is the requirement of the modern life, with the results based on and come out from the present paper some strategies are going to be shown.

Baqer Kord

2012-03-01

339

An Empirical Assessment of Service Quality of Cellular Mobile Telephone Operators in Pakistan  

Directory of Open Access Journals (Sweden)

Full Text Available Purpose:  The purpose of this study was to examine the dimensions of users’ perceived service quality of cellular mobile telephone operators in Pakistan.Research design / methodology: A structured questionnaire, covering SERVQUAL dimensions of tangible, reliability, assurance, empathy, responsiveness, and additional dimensions of network quality and convenience, was used to measure mobile phone users’ perception about service quality. Convenience sample of 800 mobile phone users was used to collect the data. Confirmatory factor and multiple regression analysis were conducted.Finding: The adapted SERVQUAL with additional dimensions was found to be a valid instrument to measure service quality in mobile phone services. The dimensions of tangible, assurance, responsiveness, empathy, convenience, and network quality found to have positive and statistically significant relationship with mobile phone users’ perceived service quality. Convenience and network quality dimensions found to be relatively most important dimensions affecting users’ perception. The dimension of reliability did not reflect significant effect on customers’ perception of quality.Research limitations/implications: Convenience sample was used to measure mobile phone users’ perception of service quality. Practical implications: SERVQUAL is a valid instrument to measure service quality in cellular mobile telephone operators in Pakistan. Inclusion of additional dimensions and items make it more comprehensive for application in telecommunication services. The dimensions of network quality, convenience, and reliability are important aspects that need managerial attention to attract and retain customers. The regulators in telecommunication industry should take appropriate measure to include these dimensions in undertaking objective assessment of quality of service of cellular mobile telephone operators in Pakistan in safeguarding customers’ interest.Originality/value:  Few studies on cellular mobile phone users’ perception of service quality using SERVQUAL, and additional dimensions of convenience and network quality has been carried out in Pakistan. The current study has improved the understanding of mobile phone users’ perception of quality for mobile phone operators, and regulators, beside its practical implications for telecommunication industry in Pakistan. Key Words: Customer service quality, SERVQUAL, Mobile communication service, Pakistan

Muhammad Asif Khan

2010-09-01

340

Performance Comparison of Commercial Mobile Phone Battery  

Science.gov (United States)

Mobile phone is not only accepted as a communication apparatus, but also as a contemporary life style. Multifunctional mobile phone requires high energy density battery and at the same time, the miniaturization of the device requires slimmer and lighter battery. There are many brands of lithium-ion battery manufactured by different companies available in the market. In order to focus on the perspective of the battery performance, a study on the performance of the commercial battery was conducted. Various brands and designs of lithium-ion batteries manufactured by different companies from different countries were purchased from open market. Samples were analyzed based on the cycle life and discharging rate. The cycle life tests were performed with 1C current discharge, whereas the discharge rate was performed using discharge current at 0.2C, 0.5C, 1C and 2C. Recovery capacity at high rate discharge, 2C is about 90 to 96% of 0.2C capacity. Cycle life performance is above 300 cycles and some good sample can achieve more than 500 cycles.

Mat, Azrulnizam; Buniran, Surani; Sulaiman, Mohd Ali

2002-12-01

 
 
 
 
341

Leucocyte mobilization to skin lesions  

International Nuclear Information System (INIS)

Leucocyte mobilization to a chamber covering a skin lesion was studies in healthy volunteers.111Indium-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 106 leucocytes/cm2/24 hours and 200 x 106leucocytes/cm2/48 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)

342

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 on?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

343

Electron mobility in MgZnO/ZnO heterojunctions  

Science.gov (United States)

Phonon-limited drift mobility of a two dimensional electron gas at MgZnO/ZnO heterojunction is investigated for temperatures Tphonons via deformation potential and piezoelectric fields to be quasielastic and that by polar LO phonons to be inelastic. Solving the linearized Boltzmann transport equation using the iteration technique and relaxation time approximation, numerical calculations of the energy dependence of the perturbation function, ?-1(E) and relaxation rates, ?-1(E) are presented. Inclusion of sample dependent scattering mechanisms obtains good agreement with recent mobility data.

Begum, K. Rizwana; Kolvekar, Sangeeta B.; Sankeshwar, N. S.

2013-06-01

344

Exploring the Potential of Mobile Learning Use Among Faculty Members  

Directory of Open Access Journals (Sweden)

Full Text Available The purpose of this study was to investigate faculty members' attitudes toward mobile learning in King Saud University. The sample of the study consisted of 362 faculty members from King Saud University in Saudi Arabia during the academic year 2012-2013. A questionnaire consisted of 37 items was developed to measure the attitudes. The results showed that the attitudes of faculty members towards mobile learning are positive and there are statistically significant differences attributed to gender in favor of (female faculty members, academic rank in favor of (instructor, and academic experience in favor of (21 years of experience and more.

Mansour A Alwraikat

2014-06-01

345

Probabilistic Mobility Models for Mobile and Wireless Networks  

DEFF Research Database (Denmark)

In this paper we present a probabilistic broadcast calculus for mobile and wireless networks whose connections are unreliable. In our calculus broadcasted messages can be lost with a certain probability, and due to mobility the connection probabilities may change. If a network broadcasts a message from a location it will evolve to a network distribution depending on whether nodes at other locations receive the message or not. Mobility of locations is not arbitrary but guarded by a probabilistic mobility function (PMF) and we also define the notion of a weak bisimulation given a PMF. It is possible to have weak bisimular networks which have different probabilistic connectivity information. We also examine the relation between our weak bisimulation and a minor variant of PCTL*. Finally we apply our calculus on a small example called the ZeroConf protocol.

Song, Lei; Godskesen, Jens Christian

2010-01-01

346

Mobile and Social: Ten Best Practices for Designing Mobile Applications  

Directory of Open Access Journals (Sweden)

Full Text Available 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 so well. To further make the point, there is a case study of four interesting mobile applications that are textbooks examples of successful applications. The best practices are based on research done for this article and on the extensive knowledge of the author.

Liviu LICA

2010-01-01

347

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

348

Mobile Agents and Mobile Devices: Friendship or Dif?cult Relationship?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile agent technology has traditionally been recognized as a very useful approach to build applications for mobile computing and wireless environments. However, only a few studies report practical experiences with mobile agents in a mobile medium. This leads us to the following question: can current mobile agent platforms be used effectively in environments with mobile devices?
In this paper, we study existing mobile agent platforms by analyzing if they are suitable or not in a ...

Eduardo Mena; Raquel Trillo; Sergio Ilarri; Oscar Urra

2009-01-01

349

Nutritional requirements of Methanomicrobium mobile.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A defined medium was developed for Methanomicrobium mobile BP. M. mobile required acetate for growth; the optimal concentration was 30 mM. Other requirements and their optimal concentrations included isobutyrate (0.65 mM), isovalerate (0.73 mM), and 2-methylbutyrate (1.5 mM). The appropriate branched-chain amino acids did not substitute for these branched-chain fatty acids. M. mobile required tryptophan at an optimal concentration of 24 microM. Indole substituted for tryptophan, but the possi...

Tanner, R. S.; Wolfe, R. S.

1988-01-01

350

Dengue epidemics and human mobility  

Science.gov (United States)

In this work we explore the effects of human mobility on the dispersion of a vector borne disease. We combine an already presented stochastic model for dengue with a simple representation of the daily motion of humans on a schematic city of 20×20 blocks with 100 inhabitants in each block. The pattern of motion of the individuals is described in terms of complex networks in which links connect different blocks and the link length distribution is in accordance with recent findings on human mobility. It is shown that human mobility can turn out to be the main driving force of the disease dispersal.

Barmak, D. H.; Dorso, C. O.; Otero, M.; Solari, H. G.

2011-07-01

351

Dengue epidemics and human mobility  

CERN Document Server

In this work we explore the effects of human mobility on the dispersion of a vector borne disease. We combine an already presented stochastic model for dengue with a simple representation of the daily motion of humans on a schematic city of 20x20 blocks with 100 inhabitants in each block. The pattern of motion of the individuals is described in terms of complex networks in which links connect different blocks and the link length distribution is in accordance with recent findings on human mobility. It is shown that human mobility can turn out to be the main driving force of the disease dispersal.

Barmak, Daniel H; Otero, Marcelo; Solari, Hernán G

2011-01-01

352

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

353

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)

354

The Future of Mobile Security  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile devices are more than just phones, they are a lifeline to the outdoor world, entertainment platform, GPS system, a little black book and a shopping and banking tool. What is not well known is that these devices are also gateways. Mobile devices can be used by a hacker as an access point into many other aspects of your digital life as well the lives of others in your network, making mobile security about more than just protecting your phone. This is an overview of tech...

Certic, Stefan

2013-01-01

355

Mission Management for Mobile Robots  

Digital Repository Infrastructure Vision for European Research (DRIVER)

For at least a decade a forthcoming advent of mobile robots in our everyday environments has been predicted by both media and researchers. Still we rarely meet relatives to the SciFi robots R2D2 or C3PO in our livingrooms or in our oces at work. Despite the constant evolution of advanced algorithms for mobile robot navigation, applications for mobile robots are eectively limited by the capabilities of planning and error-handling in the robot control software frameworks. T...

Beck, Anders Billesø; Andersen, Nils Axel; Ravn, Ole

2009-01-01

356

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

357

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

358

The GalileoMobile Program  

Science.gov (United States)

GalileoMobile is an itinerant science education program that is bringing astronomy closer to young people around the world since 2009 (http://galileo-mobile.org/). GalileoMobile acts in areas where outreach projects are scarce or non-existent. It is a purely non-profit initiative run by 22 volunteers (astronomers, educators and science communicators) from all over the world. The team seeks to promote cultural interaction among people beyond geographical borders and spread the message that we all live under the same sky.

Spinelli, P. F.

2014-10-01

359

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

360

Mobile app manual how to start creating mobile apps using jQuery mobile and PhoneGap build  

CERN Document Server

Mobile App Manual: The Blueprint is a starting point for building native mobile applications using web technologies. You'll learn about a process developed using tools like jQuery Mobile and PhoneGap Build, that will allow you to create mobile applications quickly and easily. You'll also learn how to leverage skills typically used to develop deskto

Pelletier, Jeff

2013-01-01

 
 
 
 
361

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

362

Enhancing Mobile Data Offloading with Mobility Prediction and Prefetching  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We present procedures that exploit mobility prediction and prefetching to enhance offloading of traffic from mobile networks to WiFi hotspots, for both delay tolerant and delay sensitive traffic. We evaluate the procedures in terms of the percentage of offloaded traffic, the data transfer delay, and the cache size used for prefetching. The evaluation considers empirical measurements and shows how various parameters influence the performance of the procedures, and their robus...

Siris, Vasilios A.; Kalyvas, Dimitrios

2013-01-01

363

RESTful Mobil Applikation för Android : Mobil Version av 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

364

47 CFR 90.247 - Mobile repeater stations.  

Science.gov (United States)

...false Mobile repeater stations. 90.247 Section... SAFETY AND SPECIAL RADIO SERVICES PRIVATE LAND MOBILE RADIO SERVICES Non-Voice...247 Mobile repeater stations. A mobile station...be assigned separate base/mobile...

2010-10-01

365

Room-temperature observations of the weak localization in low-mobility graphene films  

International Nuclear Information System (INIS)

We report room-temperature observations of the quantum conductance corrections caused by the weak localization in graphene films synthesized using solid-state-source chemical vapor deposition. Both Raman spectroscopy and Hall measurements showed strong disorder in the samples with a low mobility of ?430 cm2/V s. The emergence of weak localization at room temperature arises from the competition between the valley-dependent scattering and the thermal dephasing in such low-quality samples, although quantum effects normally appear in the samples that have an ideal structure at cryogenic temperatures. The large disorder in our low-mobility samples unexpectedly preserved the quantum mechanical weak localization

366

Mobiles ortsbezogenes Projektmanagement  

CERN Document Server

Classic project management and its tools usually deal with the management of three variables, and their relationships with each other. These are the factors of time, resources (cost) and quality. If one of the variables is to be improved, it always has negative effects on the other two. However, these factors only partially describe the reality of project management. What current project management tools often only consider implicitly is the location of an activity. In this paper, the implications of using location data for project management are clarified and a system that offers mobile support in planning and implementing projects. ----- Klassisches Projektmanagement und seine Werkzeuge befassen sich meist mit der Verwaltung dreier Gr\\"o{\\ss}en und ihrer Zusammenh\\"ange untereinander. Dabei handelt es sich um die Faktoren Zeit, Ressourcen (Kosten) und Qualit\\"at. Falls eine der Gr\\"o{\\ss}en verbessert werden soll, hat dies immer negative Auswirkungen auf die anderen beiden Gr\\"o{\\ss}en. Diese Gr\\"o{\\ss}en b...

Schneider, Patrick; Zibuschka, Jan

2010-01-01

367

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

368

Bacterial mobilization of polonium  

International Nuclear Information System (INIS)

Polonium has been observed as the sole ?-emitting nuclide in groundwaters of central Florida, in the absence of its radiogenic parents, at levels of 1,000 dpm/1 or more. Because of the chemical similarity of Po to S (both occupy the same column in the periodic table), studies were begun to determine whether bacteria, particularly those species active in sulfur cycling, could account for the selective solubilization and mobilization of Po. Possible sources of Po are the U-rich phosphate rock and phosphogypsum (gypsum), a byproduct in the manufacture of phosphoric acid. This paper reports on a series of experiments involving the interaction of bacteria with this waste gypsum that resulted in the solubilization of Po. Bacteria were isolated from gypsum that were capable of mediating Po release in column experiments of Po. Bacteria were isolated from gypsum that were capable of mediating Po release in column experiments when fed a growth medium. Sulfate-reducing bacteria were particularly effective at mediating Po release provided the sulfide levels did not rise above 10 ?M, in which case Po was apparently coprecipitated as a metal sulfide. Conversely, the ability of sulfate-reducing bacteria to effectively remove dissolved Po when sulfide levels are high suggests that these bacteria may be used as an effective bioremediation tool at reducing groundwater Po levels. 22 refs., 10 figs

369

Sampling Development  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Research in developmental psychology requires sampling at different time points. Accurate depictions of developmental change provide a foundation for further empirical studies and theories about developmental mechanisms. However, overreliance on widely spaced sampling intervals in cross-sectional and longitudinal designs threatens the validity of the enterprise. This article discusses how to sample development in order to accurately discern the shape of developmental change. The ideal solutio...

Adolph, Karen E.; Robinson, Scott R.

2011-01-01

370

Mobile Apps: Chance zur Differenzierung  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile Applikationen für das Handy bergen für die Assekuranz ein enormes Potenzial: Die Versicherer können damit nicht nur ihren Kunden einen deutlichen Mehrwert bieten, sondern gleichzeitig auch die internen Prozesse beschleunigen

Elgar Fleisch

2010-01-01

371

From Encounters to Plausible Mobility  

CERN Document Server

Inferring plausible node mobility based only on information from wireless contact traces is a difficult problem. Working with mobility information allows richer protocol simulations, particularly in dense networks, but requires complex set-ups to measure. On the other hand, contact information is easier to measure but only allows for simplistic simulation models. In a contact trace a lot of node movement information is irretrievably lost so the original positions and velocities are in general out of reach. In this paper, we propose a fast heuristic algorithm, inspired by dynamic force-based graph drawing, capable of inferring a plausible movement from any contact trace, and evaluate it on both synthetic and real-life contact traces. Our results reveal that (i) the quality of the inferred mobility is directly linked to the precision of the measured contact trace, and (ii) the simple addition of appropriate anticipation forces between nodes leads to an accurate inferred mobility.

Whitbeck, John; Conan, Vania; Ammar, Mostafa; Zegura, Ellen

2010-01-01

372

Understanding Human Mobility from Twitter  

CERN Document Server

We analyse a large dataset with more than six million get-tagged tweets posted in Australia, and demonstrate that Twitter can be a reliable source for studying human mobility patterns. We find that crucial information of human mobility, such as its multi-scale and multi-modal nature, returning tendency and regularity, as well as the heterogeneous moving scale among individuals, can be extracted from geo-tagged tweets using various statistical indicators. Our analysis of the spatial-temporal patterns for people with different moving scales shows that long-distance travellers have highly concentrated urban movements. Our study not only deepens overall understanding of human mobility but also opens new avenues for tracking human mobility.

Jurdak, Raja; Liu, Jiajun; AbouJaoude, Maurice; Cameron, Mark; Newth, David

2014-01-01

373

Advances in mobile mapping technology  

CERN Document Server

The growing market penetration of Internet mapping, satellite imaging and personal navigation has opened up great research and business opportunities to geospatial communities. Multi-platform and multi-sensor integrated mapping technology has clearly established a trend towards fast geospatial data acquisition. Sensors can be mounted on various platforms, such as satellites, aircrafts or helicopters, terrestrial vehicles, water-based vessels, and may even be hand-carried by individuals. Mobile mapping refers to a means of collecting geospatial data using mapping sensors mounted on a mobile platform. Its development was primarily driven by the advances in digital imaging and direct-georeferencing technologies. With the escalating use of telecommunication networks and the increasing availability of low-cost and portable sensors, mobile mapping has become more dynamic, and even pervasive. The book addresses a wide variety of research issues in the mobile mapping community, ranging from system development to sens...

Tao, C Vincent

2007-01-01

374

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

375

Intellectual mobile Ad Hoc networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In this article intellectualization of Mobile Ad Hoc Networks resources management is offered. It was proposed decomposition of the primary goal of MANET functioning into easy subgoals, and fragment of the MANET node target structure is presented.

Sova, Oleg; Romanjuk, Valeriy; Bunin, Sergey; Zhuk, Pavlo

2012-01-01

376

Student Mobility. Information Capsule. Volume 0608  

Science.gov (United States)

Mobility, rather than stability, has become the norm for students in schools across the United States. The student mobility rate is now higher in the United States than in any other industrialized country. This Information Capsule discusses the reasons for student mobility and the characteristics of highly mobile students and families. Research…

Blazer, Christie

2007-01-01

377

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

378

Reading with Mobile Phone & Large Display  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In this paper we compare performance and usability between three different device combinations: a) mobile phone b) touch screen c) mobile phone & screen. We show that mobile phone & screen has a better perform-ance than phone only. We also discuss some interaction issues when using a mobile phone with a large screen.

Gostner, Roswitha; Gellersen, Hans; Kray, Christian; Sas, Corina

2008-01-01

379

Adaptive Device Context Based Mobile Learning Systems  

Science.gov (United States)

Mobile learning is e-learning delivered through mobile computing devices, which represents the next stage of computer-aided, multi-media based learning. Therefore, mobile learning is transforming the way of traditional education. However, as most current e-learning systems and their contents are not suitable for mobile devices, an approach for…

Pu, Haitao; Lin, Jinjiao; Song, Yanwei; Liu, Fasheng

2011-01-01

380

Scaling behavior in ranking mobility of Chinese stock market  

Science.gov (United States)

As an aggregate measure of the variations in individuals, the analysis of mobility provides a substantial and comprehensive perspective into the complexity of socio-economic systems. In this paper, we introduced the ranking mobility index to measure the ranking variations of the stocks in Chinese stock market over time. Using the daily data of 837 constituent stocks of the Shanghai A-Stock Composite Index from January 1, 2002 to December 31, 2012, we examined respectively the dependence of ranking mobility with respect to the absolute return, trading volume and turnover ratio on the sampling time interval. The scaling property is observed in all three relations. The fact of long relaxation times gives evidence of long memory property in the stock ranking orders.

Wu, Ke; Xiong, Wanting; Weng, Xin; Wang, Yougui

2014-08-01

 
 
 
 
381

Mobile technology: implications of its application on learning  

Directory of Open Access Journals (Sweden)

Full Text Available Learning in Nigeria is considered to have taken a new dimension as the Distance Learning Centre (DLC of the University of Ibadan has created wider access to learning through the application of mobile technology to learning with particular reference to mobile phones use for the teaching and learning process. By this, the Centre seeks to achieve one of the major objectives of the Nigerian National Policy on Education, which is the provision of equal educational opportunities to all citizens at different levels of education. The paper therefore presents the attendant challenges of introducing such an innovative idea to learning at the University of Ibadan using a sampled population of 201 in a Focus Group Discussion (FGD held among learners under the Distance Learning platform to establish the benefits and problems of using mobile phones for learning in the University of Ibadan.

Samuel Adesola Adeyemo

2013-09-01

382

Innovative Secure Mobile Banking Services  

Directory of Open Access Journals (Sweden)

Full Text Available 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 anywhere. In order for users to access their accounts, they need a mobile device and network connectivity. Therefore, sitting in front of a computer is not a requirement anymore; accessing accounts can occur while users are waiting their turn at the dentist clinic or relaxing at the beach! This paper explores the opportunities of using mobile technology in the electronic banking (e-banking sector to enhance existing banking services by moving toward m-banking using mobile devices and wireless media that can provide opportunities for ubiquitous access to the banking services as mobile technologies can be used at anytime and from anywhere. The technical problems encountered while using the mobile devices presents some technical difficulties and challenges for the m-banking. In this paper we introduce a mobile system that demonstrates the flexibility gained out of this technology and covers the major aspects of such kind of applications. The proposed system covers two parts: the customer services (user interface and the security aspects. In the user interface part, banking facility is provided to the user through the mobile device to implement banking transactions. The model provides customers with the services: billing payments, transferring of funds, viewing of customer’s accounts and transactions, allowing the user to change his/her password and request a cheque book. The application takes into consideration security aspects, it satisfies the following security requirements: Authentication, Confidentiality and Authorisation. This paper introduces the advantages and disadvantages of using mobility in the banking sector. Furthermore, this paper also presents the security, suitability and feasibility aspects of using m-banking in terms of technology and usability.

Mousa T AL-Akhras

2011-01-01

383

From Encounters to Plausible Mobility  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Inferring plausible node mobility based only on information from wireless contact traces is a difficult problem. Working with mobility information allows richer protocol simulations, particularly in dense networks, but requires complex set-ups to measure. On the other hand, contact information is easier to measure but only allows for simplistic simulation models. In a contact trace a lot of node movement information is irretrievably lost so the original positions and velocit...

Whitbeck, John; Amorim, Marcelo Dias; Conan, Vania; Ammar, Mostafa; Zegura, Ellen

2010-01-01

384

Mobile marketing and its implementations  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Latto, Joel Mobile marketing and its implementations Jyväskylä: University of Jyväskylä, 2014, 33 p. Information Systems Science, Bachelor’s Thesis Supervisor: Salo, Markus Mobile devices have become increasingly important marketing channel in recent years for all kinds of organizations. They allow marketers to bring forward relevant marketing information for the consumers based on location, purchase history, time and technology available. Although not brand new way ...

Latto, Joel

2014-01-01

385

Mobile Learning – Begriff, Modelle, Forschung  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This overview focuses Mobile Learning (M-Learning) from an educational point of view. M-Learning, which found its way into different educational contexts since the middle of the 1990s, is a dynamic and interdisciplinary field. It is dynamic because of the rapid development of information and communication technology and the partly huge resulting changings. It is interdisciplinary because mobile technology and learning concern different scientific disciplines. Different points of view and the ...

Regina Parzl; Maria Bannert

2013-01-01

386

Mutual Mobile Membranes with Timers  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 po...

Gabriel Ciobanu; Bogdan Aman

2009-01-01

387

Replication Strategies in Mobile Environments  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Transaction management in wireless environment poses challenging issues in preserving data consistency and fault tolerance. As the mobile databases are prone to frequent disconnections, bandwidth limitations, mobility, etc. efficient execution of the transaction may not always be guaranteed. Replicating data at several sites is a powerful mechanism which not only increases performance but also provides fault tolerance for demanding database applications. However the major concern is to keep t...

Salman Abdul Moiz; Lakshmi Rajamani

2010-01-01

388

Mobile Access to Oncology Knowledge  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Although considerable effort has been put into creating extensive on-line reference resources for oncology, this compiled knowledge is underutilized in clinical situations. The Mobile Access To Oncology Knowledge (MATOK) project facilitates access to a variety of knowledge sources by providing a system designed to be used at the point-of-care. The system's key characteristics are mobility, homogeneous access, concept-based searching, step-wise refinement, and integration with on-line patient ...

Acuff, Richard D.; Carlson, Robert W.; Fagan, Lawrence M.; Sherertz, David D.; Erlbaum, Mark S.; Olson, Nels E.; Tuttle, Mark S.

1996-01-01

389

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

390

A Mobile Transient Internet Architecture  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This paper describes a new architecture for transient mobile networks destined to merge existing and future network architectures, communication implementations and protocol operations by introducing a new paradigm to data delivery and identification. The main goal of our research is to enable seamless end-to-end communication between mobile and stationary devices across multiple networks and through multiple communication environments. The architecture establishes a set of ...

Jerez, Henry N.; Khoury, Joud; Abdallah, Chaouki

2006-01-01

391

Trustworthy execution on mobile devices  

CERN Document Server

This brief considers the various stakeholders in today's mobile device ecosystem, and analyzes why widely-deployed hardware security primitives on mobile device platforms are inaccessible to application developers and end-users. Existing proposals are also evaluated for leveraging such primitives, and proves that they can indeed strengthen the security properties available to applications and users, without reducing the properties currently enjoyed by OEMs and network carriers. Finally, this brief makes recommendations for future research that may yield practical and deployable results.

Vasudevan, Amit; Newsome, James

2013-01-01

392

The six immutable laws of mobile business  

CERN Document Server

Valuable lessons from Japan's mobile industry yield 6 Immutable Laws for Mobile Business globally Japan's mobile customers enjoyed better mobile devices, more content, and the most advanced functionality and services for the last 10+ years. This book helps cut through the many myths and all of the hype surrounding Japan's mobile dominance to identify the most important laws that will guide the success of mobile businesses around the world. Based on detailed market analysis and unprecedented access to the major players and pioneers of the Japanese mobile industry, this publication help

Sugai, Philip; Ciferri, Ludovico

2009-01-01

393

Mobile-Assisted Language Learning  

Directory of Open Access Journals (Sweden)

Full Text Available The main characteristics of mobile learning (m-learning are recognized as the potential for learning process to be personalized, spontaneous, informal and ubiquitous. Although learning through mobile phones may take longer time compared to computers, the learners feel a greater sense of freedom of time and place, so that they can take the advantage of spare time to learn a second language when and wherethey are. Mobile-Assisted Language Learning (MALL deals with the use of mobile technology in language learning. In contrast to classroom learning, in MALL there is no need for the learners to sit in a classroom or at a computer to get learning materials. In fact, MALL can be considered an ideal solution to language learning barriers in terms of time and place. In this paper by looking at some applications of m-learning as well as some examples across various aspects of it, we observe the advantages and disadvantages derived from using mobile technologies for students as well as professionals. Here, it has been tried to demonstrate the benefits of using mobilephones in learning English as a second language. Areas of mobile-based language learning discussed in this paper are vocabulary, listening, grammar, phonetics, and reading comprehension.

Tayebeh Mosavi Miangah

2012-02-01

394

Mobile phones and health concerns  

International Nuclear Information System (INIS)

As Mobile Cellular phone ownership grows throughout the developed as well as the developing world, concerns about the health risks due to radio frequency emissions from the mobile phone base stations and due to usage of mobile handsets are slowly growing. This article has a look at the concepts used in the mobile phone technology, the power outputs from base stations and mobile handsets, the quantities Specific Energy Absorption Rate (SAR) and power density as a means to assess the effects on biological tissue. The precautionary approach to manage the health risks from mobile phones by specifying exposure guidelines is explored. Having surveyed the relevant epidemiological surveys and finding them inconclusive, NRPB, United Kingdom's national regulatory body has issued exposure guidelines based on the potential of RF radiation to cause illness or injury through heating of body tissues. USA's Federal Communications Commission (FCC) limits are also listed for comparison. ICNIRP has issued two-tier guidelines, differentiating between occupational and public exposure. The public exposure limits are kept at one-fifth of the occupational exposure limits. The evidence till date, suggests that exposure to RF radiation below NRPB and ICNIRP limits do not cause adverse effects to the general population. However, the gaps in our knowledge warrant a precautionary approach. (author)

395

Personalized Mobile Search Engine (PMSE  

Directory of Open Access Journals (Sweden)

Full Text Available we propose a PMSE (Personalized Mobile Search Engine that captures the users’ preferences in the form of concepts by mining their click-through data. Due to the importance of location information in mobile search, PMSE classifies these concepts into content concepts and location concepts. Using GPS users’ locations are used to supplement the location concepts in PMSE. The user preferences are organized in an ontology based, multi-facet user profile, which are used to adapt a personalized ranking function for rank adaptation of future results of search. To characterize the diversity of the concepts associated with a query and their relevance to the user’s need, various entropies are introduced to balance the weights between the location facets and content. Based on the Client & Server model, we also proposed a detailed architecture and design for implementation of PMSE. In our proposed system, the client collects and stores locally the click-through data to ensure security and privacy, whereas heavy tasks such as concept extraction, training, and re-ranking are performed at the Personalized Mobile Search Engine server side. We also tried to address the privacy issue by restricting the information in the user profile exposed to the Personalized Mobile Search Engine server with two privacy parameters. We prototype Personalized Mobile Search Engine (PMSE on the Google Android platform. Proposed  system show that PMSE significantly improves the precision comparing to the baseline.   Index Terms—Click-through, personalization, concept, location search, ontology, mobile search engine, user profiling.

Prathmesh Sanjay Powar

2014-07-01

396

Mobile Phone Usage for M-Learning: Comparing Heavy and Light Mobile Phone Users  

Science.gov (United States)

Purpose: Mobile technologies offer the opportunity to embed learning in a natural environment. The objective of the study is to examine how the usage of mobile phones for m-learning differs between heavy and light mobile phone users. Heavy mobile phone users are hypothesized to have access to/subscribe to one type of mobile content than light…

Suki, Norbayah Mohd; Suki, Norazah Mohd

2007-01-01

397

Unraveling stem cell and progenitor subsets in autologous grafts according to methods of mobilization : implications for prediction of hematopoietic recovery  

DEFF Research Database (Denmark)

In the autologous setting, granulocyte colony-stimulating factor (G-CSF) (G), or, when failing, G plus plerixafor (G+P), are common regimens for mobilization of stem cells into peripheral blood. To delineate mobilization effects on graft composition and hematopoietic recovery, we compared contents of stem cells and progenitor cells in products of G+P- and G patients. Paired samples of G+P patients and prior insufficient G mobilization were available for analyses.

Roug, Anne Stidsholt; Hokland, Lea Bjerre

2014-01-01

398

Sampling Development  

Science.gov (United States)

Research in developmental psychology requires sampling at different time points. Accurate depictions of developmental change provide a foundation for further empirical studies and theories about developmental mechanisms. However, overreliance on widely spaced sampling intervals in cross-sectional and longitudinal designs threatens the validity of…

Adolph, Karen E.; Robinson, Scott R.

2011-01-01

399

Real-Time Online Multiplayer Mobile Gaming  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Gaming on mobile phones is a business with a great growth potential both in profit and popularity. In today's modern world, the number of potential users of online multiplayer mobile games is enormous. This is because of the wide deployment of mobile phones and the increasing general interest in gaming. For game developers, this is an interesting business area, since mobile games are faster and easier to develop than console or computer games, due to the mobile games' smaller size and reduced...

Jarrett, Martin; Sorteberg, Eivind

2007-01-01

400

Enabling Heterogeneous Mobility in Android Devices  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The fast growing of mobile Internet users with the ability of using a wide diversity of access technologies such as Wi-Fi, WiMAX and UMTS/LTE, and the increasing proliferation of mobile devices with heterogeneous network interfaces, require versatile mobility mechanisms providing seamless roaming across those access technologies. Mobility agents such as Mobile IP and Fast MIPv6 are common, however, these solutions still have limitations when dealing with multiple link-layer technologies. In t...

Silva, Ricardo; Carvalho, Paulo; Sousa, Pedro; Neves, Pedro

2011-01-01

 
 
 
 
401

Mobile Applications in Enterprise Information System  

Directory of Open Access Journals (Sweden)

Full Text Available market development of mobile devices influenced the rapid growth of the market for mobile applications. This forces companies to respond to user requests and solve decision whether to extend the application of the information system of enterprise mobile applications .The paper deals with aspects related to the design and implementation of mobile applications in the enterprise, focusing on their design and implementation. The aim is to assess aspects of deciding on the appropriate use and methods of mobile applications..

Zuzana Šedivá

2013-12-01

402

Truthful Scheduling Mechanisms for Powering Mobile Crowdsensing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile crowdsensing leverages mobile devices (e.g., smart phones) and human mobility for pervasive information exploration and collection; it has been deemed as a promising paradigm that will revolutionize various research and application domains. Unfortunately, the practicality of mobile crowdsensing can be crippled due to the lack of incentive mechanisms that stimulate human participation. In this paper, we study incentive mechanisms for a novel Mobile Crowdsensing Schedul...

Han, Kai; Zhang, Chi; Luo, Jun

2013-01-01

403

HotMobile 2008: Postconference Report  

Digital Repository Infrastructure Vision for European Research (DRIVER)

HotMobile 2008 presented a two-day program on mobile computing systems and applications. The authors focuses on the sessions on sensors, modularity, wireless, security, systems, and screens. The mobile device is the most amazing invention in history and that it has had the largest impact on human kind. Because mobile phones combine mobile devices with ongoing developments in software and communication technologies, they have the potential to change the way people think and act.

Lindqvist, J.; Pawar, P.; Stuntebeck, E.

2008-01-01

404

A Survey of Mobile Cloud Computing  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile Cloud Computing (MCC) which combines mobile computing and cloud computing, has become one of the industry buzz words and a major discussion thread in the IT world since 2009. Despite increasing usage of mobile computing, exploiting its full potential is difficult due to its inherent problems such as resource scarcity, frequent disconnections, and mobility. MCC integrates the cloud computing into the mobile environment and overcomes obstacles related to the performance (e.g., battery li...

Ravi Prakash Reddy, Dr I.; Usha, V.

2013-01-01

405

AUTONOMIC SERVICE MANAGEMENT IN MOBILE CLOUD INFRASTRUCTURES  

Digital Repository Infrastructure Vision for European Research (DRIVER)

With the introduction and advancement of mobile cloud computing, endless opportunities for the provision of mobile phone services have ensued. Mobile cloud computing technology has brought about a breakthrough in information management by enabling the use of central servers which act as hosts, to deliver the required services, providing flexibility and reliability to mobile users. Due to the dynamic nature of mobile devices, and various constraints such as limited bandwidth however, the use o...

Aduragba Olanrewaju Tahir; Adedoyin Adeyinka

2014-01-01

406

Mobile Navigation for Sport’s Pilots  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Today, global object-positioning is accomplished very precisely by GPS satellite technology. Access to this information is provided globally by widespread mobile devices with integrated GPS receivers from everywhere also from airplane. This paper presents a mobile device using GPS receiver to be used by mobile navigation for sports pilots. In fact, the mobile navigation is a mobile application running on Android. Thus, the current position of the airplane is indicated on the GoogleMaps and co...

Dušan Fister; Janez Kramberger; Jani Dugonik

2013-01-01

407

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

408

Environmental sampling  

International Nuclear Information System (INIS)

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

409

On the Move with the Mobile Web: Libraries and Mobile Technologies  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Imagine walking by a movie poster for the upcoming Harry Potter film and scanning it with a click of your camera phone in order to download associated ringtones, get showtimes, or even buy tickets. How about snapping a photo while browsing through a magazine to get a free sample of a new perfume? This may sound like science fiction right now, but in Japan, this type of mobile search technology is widespread, and in the United States similar services are already being developed, services...

Kroski, Ellyssa

2008-01-01

410

Advanced mobility handover for mobile IPv6 based wireless networks.  

Science.gov (United States)

We propose an Advanced Mobility Handover scheme (AMH) in this paper for seamless mobility in MIPv6-based wireless networks. In the proposed scheme, the mobile node utilizes a unique home IPv6 address developed to maintain communication with other corresponding nodes without a care-of-address during the roaming process. The IPv6 address for each MN during the first round of AMH process is uniquely identified by HA using the developed MN-ID field as a global permanent, which is identifying uniquely the IPv6 address of MN. Moreover, a temporary MN-ID is generated by access point each time an MN is associated with a particular AP and temporarily saved in a developed table inside the AP. When employing the AMH scheme, the handover process in the network layer is performed prior to its default time. That is, the mobility handover process in the network layer is tackled by a trigger developed AMH message to the next access point. Thus, a mobile node keeps communicating with the current access point while the network layer handover is executed by the next access point. The mathematical analyses and simulation results show that the proposed scheme performs better as compared with the existing approaches. PMID:25614890

Safa Sadiq, Ali; Fisal, Norsheila Binti; Ghafoor, Kayhan Zrar; Lloret, Jaime

2014-01-01

411

High kinetic energy ion mobility spectrometer: quantitative analysis of gas mixtures with ion mobility spectrometry.  

Science.gov (United States)

We present a high kinetic energy ion mobility spectrometer (HiKE-IMS) for quantitative gas analysis. Drift tube and reaction tube can be operated at reduced fields up to 110 Td. At such conditions the distribution of reactant ion water clusters is shifted toward smaller clusters. Due to the resulting presence of bare reactant ions (e.g., H3O(+)) and the kinetic control of the ionization process with decreasing reaction time, unlike conventional IMS, a quantitative detection with ppbv detection limits of low proton affine analytes even in humid gas mixtures containing high proton affine compounds is possible using a direct sample gas inlet. A significantly improved dynamic range compared to conventional IMS is achieved. An incremental change in reduced fields enables the observation of parameters like field dependent ion mobilites or analyte fragmentation. Also, the characteristic of the analyte signal with respect to the reduced reaction field gives insight into the ionization process of the analyte. Thus, HiKE-IMS enables substance identification by ion mobility and additional analytical information that are not observed with conventional IMS. The instrumental effort is similar to conventional desktop IMS with overall dimensions of the drift and reaction tube of 4 cm × 4 cm × 28.5 cm. However, the mobility resolution is limited and between 30 and 40. Because of the moisture independent ionization and the decrease in competing ion-molecule reactions, no preseparation or membrane inlet is necessary when the compounds of interest are distinguishable either by a significant difference in ion mobility or the additional analytical information. PMID:24937741

Langejuergen, Jens; Allers, Maria; Oermann, Jens; Kirk, Ansgar; Zimmermann, Stefan

2014-07-15

412

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

Yoon, Ji Hyun; Kim, Chesoong

2014-01-01

413

Status Quo and Prospect on Mobile Database Security  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile database is a specialized class of distributed systems. There are some security challenges because of the dispersed nature of the mobile database application and hardware deviceconstraints. Therefore, the security issue of mobile database is analyzed in this paper. We will research the security in terms of mobile device, operating system on mobile device, mobile network and mobile database. Moreover, various security vulnera...

Tao Zhang; Shi Xing-jun

2013-01-01

414

Toxicity characterization of waste mobile phone plastics  

Energy Technology Data Exchange (ETDEWEB)

Waste plastic housing units (N = 60) of mobile phones (of different models, and brands), were collected and analyzed for lead, cadmium, nickel and silver using atomic absorption spectrophotometry after acid digestion using a 1:1 mixture of H{sub 2}SO{sub 4} and HNO{sub 3}. The mean ({+-}S.D.) and range of the results are 58.3 {+-} 50.4 mg/kg (5.0-340 mg/kg) for Pb, 69.9 {+-} 145 mg/kg (4.6-1005 mg/kg) for Cd, 432 {+-} 1905 mg/kg (5.0-11,000 mg/kg) for Ni, and 403 {+-} 1888 mg/kg (5.0-12,500 mg/kg) for Ag. Approximately 90% of the results for the various metals were {<=}100 mg/kg. Results greater than 300 mg/kg were generally less than 7% for each metal and could be attributed to exogenous contamination of the samples. These results suggest that there may not be any immediate danger from end-of-life (EoL) mobile phone plastic housing if appropriately treated/managed. However, considering the large quantities generated and the present low-end management practices in most developing countries, such as open burning, there appears a genuine concern over the potential for environmental pollution and toxicity to man and the ecology.

Nnorom, I.C. [Department of Industrial Chemistry, Abia State University, P.O. Box 809, Umuahia, Abia State (Nigeria)], E-mail: chidiabsu@yahoo.co.uk; Osibanjo, O. [Basel Convention Regional Coordinating Center for Africa for Training and Technology Transfer, Department of Chemistry, University of Ibadan (Nigeria)], E-mail: oosibanjo@yahoo.com

2009-01-15

415

Toxicity characterization of waste mobile phone plastics  

International Nuclear Information System (INIS)

Waste plastic housing units (N = 60) of mobile phones (of different models, and brands), were collected and analyzed for lead, cadmium, nickel and silver using atomic absorption spectrophotometry after acid digestion using a 1:1 mixture of H2SO4 and HNO3. The mean (±S.D.) and range of the results are 58.3 ± 50.4 mg/kg (5.0-340 mg/kg) for Pb, 69.9 ± 145 mg/kg (4.6-1005 mg/kg) for Cd, 432 ± 1905 mg/kg (5.0-11,000 mg/kg) for Ni, and 403 ± 1888 mg/kg (5.0-12,500 mg/kg) for Ag. Approximately 90% of the results for the various metals were ?100 mg/kg. Results greater than 300 mg/kg were generally less than 7% for each metal and could be attributed to exogenous contamination of the samples. These results suggest that there may not be any immediate danger from end-of-life (EoL) mobile phone plastic housing if appropriately treated/managed. However, considering the large quantities generated and the present low-end management practices in most developing countries, such as open burning, there appears a genuine concern over the potential for environmental pollution and toxicity to man and the ecology

416

Ion mobility spectrometry after supercritical fluid chromatography  

International Nuclear Information System (INIS)

In this work, a Fourier transform ion mobility spectrometer (FT-IMS) was constructed and evaluated as a detector for supercritical fluid chromatography (SFC). The FT-IMS provides both quantitative and qualitative data of a wide range of compounds, selective and nonselective modes of chromatographic detection, and it is compatible with a wide range of SFC mobile phases. Drift spectra are presented for a number of samples, including polymers, lipids, herbicides, antibiotics, and pharmaceuticals. The unique properties of supercritical fluids made it possible to introduce these compounds into the spectrometer. While the drift spectra presented are generally simple, showing only a quasi-molecular ion, a few are surprising complex. Examples of selective and non-selective detection demonstrate the usefulness of the detector. Examples are presented for fish oil concentrate, bacon grease extract, soil extract, and polymer mixtures. In the case of Triton X-100, a non-ionic surfactant, the FT-IMS was able to selectively detect individual oligomers in the polymer mixture. In the case of a polydimethylsilicone mixture the detector isolated a contaminant in the mixture

417

Making Light Rail Mobilities  

DEFF Research Database (Denmark)

Denne Ph.d. afhandling bidrager med et kvalitativt perspektiv på 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 sådanne systemer. Ph.d. afhandlingen er resultatet af et 3 årigt samarbejde mellem COWI A/S afdelingen for By og trafikplanlægning i Aalborg, samt Aalborg Universitet, Institut for Arkitektur og Medieteknologi. Igennem de senere år er letbaneprojekter blevet introduceret som strategiske byudviklingsværktøjer i de større danske byer. Der er derfor en særlig bevågenhed på potentialet, værdien og effekterne af sådanne 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 ‘mere end transport projekter’, 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 ‘ny mobilitets paradigme’, hvorigennem det argumenteres for, at det er vigtigt ikke alene at fokusere på de tekniske of fysiske aspekter af mobilitet, men også 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. Formålet 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 påvirkning i bymiljøet. Ph.d. afhandling tager således afsæt i følgende problemformulering og underspørgsmål: 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? •1. Hvorfor implementeres letbanesystemer i udvalgte mellemstore europæiske byer, og hvad er de bagvedliggende rationaler herfor? •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? •3. Hvordan kan den viden der udledes af ovenstående spørgsmål anvendes i fremtidige beslutningsprocesser for letbaneprojekter?

Olesen, Mette

2014-01-01

418

The Coevolution of Mobile OS User Market and Mobile Application Developer Community  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Mobile computing is becoming increasingly popular. Accordingly, mobile OS (operating systems) are becoming standard platforms for regular computer and phone users. This paper studies the evolution and the current status of mobile OS user market and mobile application developer community. In particular, we study how smartphone mobile OS user market coevolves with its application developer community. Through this study, we highlight the symbiosis relations between mobile OS user...

Liguo Yu

2013-01-01

419

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

420

Prevalence of antibacterial resistant bacterial contaminants from mobile phones of hospital inpatients  

Science.gov (United States)

Mobile phones contaminated with bacteria may act as fomites. Antibiotic resistant bacterial contamination of mobile phones of inpatients was studied. One hundred and six samples were collected from mobile phones of patients admitted in various hospitals in Jazan province of Saudi Arabia. Eighty-nine (83.9%) out of 106 mobile phones were found to be contaminated with bacteria. Fifty-two (49.0%) coagulase-negative Staphylococcus, 12 (11.3%) Staphylococcus aureus, 7 (6.6%) Enterobacter cloacae, 3 (2.83%) Pseudomonas stutzeri, 3 (2.83%) Sphingomonas paucimobilis, 2 (1.8%) Enterococcus faecalis and 10 (9.4%) aerobic spore bearers were isolated. All the isolated bacteria were found to be resistant to various antibiotics. Hence, regular disinfection of mobile phones of hospital inpatients is advised. PMID:25292217

Vinod Kumar, B.; Hobani, Yahya Hasan; Abdulhaq, Ahmed; Jerah, Ahmed Ali; Hakami, Othman M.; Eltigani, Magdeldin; Bidwai, Anil K.

2014-01-01

 
 
 
 
421

Mobile agent driven by aspect  

Directory of Open Access Journals (Sweden)

Full Text Available Domain application of mobile agents is quite large. They are used for network management and the monitoring of complex architecture. Mobile agent is also essential into specific software architecture such that adaptable grid architecture. Even if the concept of mobile agent seems to be obvious, the development is always complex because it needs to understand network features but also security features and negotiation algorithms. We present a work about an application of aspects dedicated to mobile agent development over a local network. At this level, the underlying protocol is called jini and allows managing several essential concepts such that short transaction and permission management. Three subsets of aspects are defined in this work. A part is for the description of agent host and its security level, accessible resource, etc. A second part is about mobile agent and their collaboration. This means how they can operate on an agent host with the respect of the execution context. All the results are illustrated through a distributed monitoring application called DMA. Its main objective is the observation of component servers.

Youssef Hannad

2010-11-01

422

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

423

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

CERN Document Server

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

424

An analysis of Hall mobility in as-grown and annealed n- and p-type modulation-doped GaInNAs/GaAs quantum wells  

Science.gov (United States)

In this study, we investigate the effect of annealing and nitrogen amount on electronic transport properties in n- and p-type-doped Ga0.68In0.32NyAs1 ? y/GaAs quantum well (QW) structures with y?=?0%, 0.9%, 1.2%, 1.7%. The samples are thermal annealed at 700°C for 60 and 600 s, and Hall effect measurements have been performed between 10 and 300 K. Drastic decrease is observed in the electron mobility of n-type N-containing samples due to the possible N-induced scattering mechanisms and increasing effect mass of the alloy. The temperature dependence of electron mobility has an almost temperature insensitive characteristic, whereas for p-type samples hole mobility is decreased drastically at T?>?120 K. As N concentration is increased, the hole mobility also increased as a reason of decreasing lattice mismatch. Screening effect of N-related alloy scattering over phonon scattering in n-type samples may be the reason of the temperature-insensitive electron mobility. At low temperature regime, hole mobility is higher than electron mobility by a factor of 3 to 4. However, at high temperatures (T?>?120 K), the mobility of p-type samples is restricted by the scattering of the optical phonons. Because the valance band discontinuity is smaller compared to the conduction band, thermionic transport of holes from QW to the barrier material, GaAs, also contributes to the mobility at high temperatures that results in a decrease in mobility. The hole mobility results of as-grown samples do not show a systematic behavior, while annealed samples do, depending on N concentration. Thermal annealing does not show a significant improvement of electron mobility. PMID:23009196

2012-01-01

425

Sediment Mobilization in Ravines Draining Minnesota Cropland  

Science.gov (United States)

In recent years, studies have found that Lake Pepin, a naturally-dammed lake on the Mississippi River on the border of Minnesota and Wisconsin, is filling in with sediment at an alarming rate. Most of this sediment comes from the Minnesota River, which contributes about 80% of all the sediment being deposited in Lake Pepin, even though it contains only 35% of the upstream area. This study focuses on understanding sediment derived from ravine erosion in a tributary of the Minnesota River basin through event monitoring of two ravines in the Le Sueur River watershed. Ravines represent one of the key sediment sources in the Le Sueur watershed, with sediment mobilized through ravine widening and headcutting. In addition, sediment may be mobilized through riverbank and bluff erosion and erosion of the topsoil. A major effort is underway to reduce the amount of sediment in the Minnesota River and Lake Pepin, so we must discover what is causing the sediment to be mobilized and when. Dominant land use in the area is agricultural with over 90% of the crops consisting of row crops. Field drainage in these agricultural areas is heavily influenced by the installation of drainage ditches and drain tile. While this has increased crop yield, it has altered the natural drainage of the area. Southern Minnesota is covered by a thick layer of glacial till allowing the landscape to rapidly respond to hydrologic conditions within a relatively short amount of time, and those changes could include ravine widening or elongation. To better understand how ravines respond to different hydrologic events, we monitored ravines over the course of one monitoring season. From April-October 2013, three Sigma 930 automated samplers measured discharge and collected water samples for total suspended sediment analysis at three sites in two ravines. We tested whether the volume, intensity or seasonality of precipitation events is most important in mobilizing sediment in the ravines. Data are being analyzed to calculate sediment budgets and identify key hydrologic factors that control sediment movement out of these ravines and into the river.

Choquette, A. W.; Triplett, L.; Gran, K. B.

2013-12-01

426

A Mobile Satellite Experiment (MSAT-X) network definition  

Science.gov (United States)

The network architecture development of the Mobile Satellite Experiment (MSAT-X) project for the past few years is described. The results and findings of the network research activities carried out under the MSAT-X project are summarized. A framework is presented upon which the Mobile Satellite Systems (MSSs) operator can design a commercial network. A sample network configuration and its capability are also included under the projected scenario. The Communication Interconnection aspect of the MSAT-X network is discussed. In the MSAT-X network structure two basic protocols are presented: the channel access protocol, and the link connection protocol. The error-control techniques used in the MSAT-X project and the packet structure are also discussed. A description of two testbeds developed for experimentally simulating the channel access protocol and link control protocol, respectively, is presented. A sample network configuration and some future network activities of the MSAT-X project are also presented.

Wang, Charles C.; Yan, Tsun-Yee

1990-01-01

427

Mobility of Taxol in Microtubule Bundles  

Science.gov (United States)

Mobility of taxol inside microtubules was investigated using fluorescence recovery after photobleaching (FRAP) on flow-aligned bundles. Bundles were made of microtubules with either GMPCPP or GTP at the exchangeable site on the tubulin dimer. Recovery times were sensitive to bundle thickness and packing, indicating that taxol molecules are able to move laterally through the bundle. The density of open binding sites along a microtubule was varied by controlling the concentration of taxol in solution for GMPCPP samples. With > 63% sites occupied, recovery times were independent of taxol concentration and, therefore, inversely proportional to the microscopic dissociation rate, k_{off}. It was found that 10*k_{off} (GMPCPP) ~ k_{off} (GTP), consistent with, but not fully accounting for, the difference in equilibrium constants for taxol on GMPCPP and GTP microtubules. With taxol along the microtubule interior is hindered by rebinding events when open sites are within ~7 nm of each other.

Ross, J.

2003-06-01

428

Replication Strategies in Mobile Environments  

Directory of Open Access Journals (Sweden)

Full Text Available Transaction management in wireless environment poses challenging issues in preserving data consistency and fault tolerance. As the mobile databases are prone to frequent disconnections, bandwidth limitations, mobility, etc. efficient execution of the transaction may not always be guaranteed. Replicating data at several sites is a powerful mechanism which not only increases performance but also provides fault tolerance for demanding database applications. However the major concern is to keep the replicated copies always consistent. In this paper various replication techniques and their applicability in the mobile environments are presented. Based on the requirements of the services provider and the type of execution model used, one of the replication strategies may be implemented.

Salman Abdul Moiz

2010-01-01

429

Mobile three dimensional gaze tracking.  

Science.gov (United States)

Mobile eyetracking is a recent method enabling research on attention during real-life behavior. With the EyeSeeCam, we have recently presented a mobile eye-tracking device, whose camera-motion device (gazecam) records movies orientated in user's direction of gaze. Here we show that the EyeSeeCam can extract a reliable vergence signal, to measure the fixation distance. We extend the system to determine not only the direction of gaze for short distances more precisely, but also the fixation point in 3 dimensions (3D). Such information is vital, if gaze-tracking shall be combined with tasks requiring 3D information in the peri-personal space, such as grasping. Hence our method substantially extends the application range for mobile gaze-tracking devices and makes a decisive step towards their routine application in standardized clinical settings. PMID:21335867

Stoll, Josef; Kohlbecher, Stefan; Marx, Svenja; Schneider, Erich; Einhäuser, Wolfgang

2011-01-01

430

Dose reconstruction using mobile phones  

International Nuclear Information System (INIS)

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. (authors)

431

Change of Mobile Telephony Operator  

CERN Multimedia

Following a call for tenders issued in 2014, CERN has agreed a contract with Swisscom for the provision of mobile telephony services from 1 July 2015.     The Sunrise equipment on CERN sites will therefore be switched off from this date and people with a CERN mobile subscription will need to exchange their Sunrise SIM card for a new one from Swisscom, with a new mobile number (the last 4 digits will remain the same). We cannot give further details at present as we are still finalising arrangements for the deployment of the new network with Swisscom, but detailed information on the steps to be followed will be given well in advance of the changeover. Communication Systems Group Information Technology Department 

2015-01-01

432

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

433

Adaptive Behavior for Mobile Robots  

Science.gov (United States)

The term "System for Mobility and Access to Rough Terrain" (SMART) denotes a theoretical framework, a control architecture, and an algorithm that implements the framework and architecture, for enabling a land-mobile robot to adapt to changing conditions. SMART is intended to enable the robot to recognize adverse terrain conditions beyond its optimal operational envelope, and, in response, to intelligently reconfigure itself (e.g., adjust suspension heights or baseline distances between suspension points) or adapt its driving techniques (e.g., engage in a crabbing motion as a switchback technique for ascending steep terrain). Conceived for original application aboard Mars rovers and similar autonomous or semi-autonomous mobile robots used in exploration of remote planets, SMART could also be applied to autonomous terrestrial vehicles to be used for search, rescue, and/or exploration on rough terrain.

Huntsberger, Terrance

2009-01-01

434

Interoperable Mobile Agent with JXTA  

Directory of Open Access Journals (Sweden)

Full Text Available As the web continues to grow in both content and the number of connected devices, peer-to-peer computing is becoming increasingly prevalent. By using peer to peer, applications could provide access to a variety of resources with high availability at a lower cost. We use peer to peer technology to deploy mobile agent community. Their objective is to gather data about local state of machine and to build more abstract observation of the whole network. The peer to peer configuration is defined by the use of JXTA framework and the mobile agent can travel from one machine to another by the use of XML serialization. Because this kind of serialization allows keeping state of agent, data collecting is realized with a community of mobile agents, each of them are responsible of a type of data.

R. Mekki

2010-01-01

435

Mobility of radionuclides in soil  

International Nuclear Information System (INIS)

Recent public interest in nuclear power production and waste disposal has led to increased awareness and concern about the biological hazards of radionuclide cycling in soil. Various radionuclides found in soils are shown and can be seen to originate from numerous sources including: radioisotopes formed during earth genesis, cosmic irradiation, fallout from atmospheric testing, uranium mill tailings, phosphate mill wastes, nuclear and coal fired power plants, defense activities, medical, industrial and research use. The objectives of this review are to summarize the factors that affect radionuclide mobility in soil, including adsorption-desorption, precipitation-dissolution reactions for liquid phase radionuclides as well as the transport of gaseous radionuclides in soils. Areas where more information is needed are also discussed. The mobility of selected radionuclides including isotopes of Sr, Cs, Co, Tc, I, Se, Pu, Am, Np, and Rn are discussed in additional detail. Two brief examples of waste management systems to control radionuclide mobility are presented

436

Mobile Collector for Field Trips  

Directory of Open Access Journals (Sweden)

Full Text Available Current e-Learning is based on learning management systems that provide certain standard services - course authoring and delivery, tutoring, administration and collaboration facilities. Rapid development of mobile technologies opens a new area of m-Learning to enhance the current educational opportunities. Field trips are a relevant part of the curriculum, but for various reasons it is often difficult to organize them. The aim of the RAFT project is development of a system that would enable virtual field trips. One mobile learning application prototype created in this project, called Mobile Collector, enables data gathering and annotation in the field, together with real time collaboration. The application supports learner-centred education in real world context.

Lucia Terrenghi

2004-04-01

437

Mobile application development for Tele-ECG  

International Nuclear Information System (INIS)

Mobile computing has caught the attention of research community for quite some time. The constant improvement of hardware and software related to mobile computing (e.g. better computing power, larger wireless network bandwidth) clearly enhance capabilities of mobile devices. The acceptance of mobile technology by the population at large would suggest that this could be the basis of a system for the communication of medical data from patients to remote physician and vice versa. This paper presents a mobile solution, which makes use of a Tele-ECG unit with a mobile phone to collect, store and forward ECG data to a cardiologist for diagnosis and recommendation. (author)

438

Mobile phone induced sensorineural hearing loss  

International Nuclear Information System (INIS)

The increased use of mobile phones worldwide has focused interest on the biological effects and possible health outcomes of exposure to radiofrequency fields from mobile phones, and their base stations. Various reports suggest that mobile phone use can cause health problems like fatigue, headache, dizziness, tension and sleep disturbances, however, only limited research data is available in medical literature regarding interaction between electromagnetic fields emitted by mobile phones and auditory function and the possible impact on hearing. We report a case of sensorineural hearing loss due to Global System for Mobile Communication mobile phone use in a 42-year-old male. (author)

439

Mobile Learning: A Topography and Research  

Directory of Open Access Journals (Sweden)

Full Text Available A topography of mobile learning and the author’s research work in the three phases of mobile learning are delineated in this paper. The aim is to provide the diachronic summary of the author as well as other researchers in these three phases of mobile learning namely the focus on devices, learning outside classroom and the mobility of learners. The research covers in many domains of mobile learning. A brief discussion on the salient characteristics of mobile learning and the issues will be provided. Hopefully, the experience learnt can be valuable for other researchers in the field.

Simon W. W. So

2014-08-01

440

Investigation of thermoluminescence properties of mobile phone screen displays as dosimeters for accidental dosimetry  

Science.gov (United States)

The rapid assessment of the radiation dose after unexpected exposure is a task of accidental dosimetry. In case of a radiological accident glasses originating from mobile phone screens, placed usually near the human body, could be used as emergency thermoluminescent (TL) personal dosimeters. The time between irradiation and TL readout is crucial and therefore preparation of the mobile phone screens and their readout conditions should be optimized. The influence of the samples etching, bleaching and selection of the optical filters based on measurement of the emission spectrum of irradiated glass samples during heating for different types of mobile phones were the subjects of our investigation. Obtained results showed that glasses extracted from different brands of mobile phones have different dosimetric properties but all of them give a luminescent signal which can be used to calculate the dose.

Mrozik, Anna; Marczewska, B.; Bilski, P.; K?osowski, M.

2014-11-01

 
 
 
 
441

Plasmon dispersions in high electron mobility terahertz detectors  

International Nuclear Information System (INIS)

Low temperature, high magnetic field experiments were carried out with monochromatic terahertz (THz) sources to reveal multimode spectra of magnetoplasmons excited in gated and ungated samples processed on a high electron mobility GaAs/AlGaAs heterostructure. We show that playing with the geometry and thickness of the gate one can control both the plasmon dispersion relation and selection rules for plasmon excitation, giving a tool to a better control of plasmon resonances in THz detectors.

442

Collecting fingerprints for recognition using mobile phone cameras  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We present in this paper a sample quality control approach for the case using a mobile phone’s camera as a fingerprint sensor for fingerprint recognition. Our approach directly estimates the maximum ridge frequency orientation by the amplitude-frequency features of the Fast Fourier Transform and takes the frequency features’ difference in two perpendicular orientations as a distinguishing feature for ridge-like patterns. Then a decision criterion which combines the frequency components’...

Yang, Bian; Li, Xue; Busch, Christoph

2012-01-01

443

Social mobility and educational attainment among Romanian Rroma  

Digital Repository Infrastructure Vision for European Research (DRIVER)

?Academic researches suggests that Rroma face challenges of overcoming poverty, improving access to education, increasing employability and improving health. This thesis describes a qualitative investigation into the role of education to ensuring upward mobility for Rroma. Using a purposive sample, the research analysed the ethnic make-up of Rroma individuals and found that contrary to uninformed perceptions, Rroma community is immensely diverse and can be described...

Constantinescu, Ra?zvan Ungureanu; Professor Anthony Heath

2007-01-01

444

Plasmon dispersions in high electron mobility terahertz detectors  

Energy Technology Data Exchange (ETDEWEB)

Low temperature, high magnetic field experiments were carried out with monochromatic terahertz (THz) sources to reveal multimode spectra of magnetoplasmons excited in gated and ungated samples processed on a high electron mobility GaAs/AlGaAs heterostructure. We show that playing with the geometry and thickness of the gate one can control both the plasmon dispersion relation and selection rules for plasmon excitation, giving a tool to a better control of plasmon resonances in THz detectors.

Bia?ek, M., E-mail: marcin.bialek@fuw.edu.pl; ?usakowski, J. [Faculty of Physics, University of Warsaw, ul. Ho?a 69, 00-681 Warsaw (Poland); Czapkiewicz, M. [Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw (Poland); Wróbel, J. [Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw (Poland); Faculty of Mathematics and Natural Sciences, Rzeszów University, al. Rejtana 16A, 35-959 Rzeszów (Poland); Umansky, V. [Weizmann Institute of Science, Rehevot 76100 (Israel)

2014-06-30

445

Large Doppler Compensation for Mobile OFDM Based Underwater Acoustic Communication  

Digital Repository Infrastructure Vision for European Research (DRIVER)

In this study, large Doppler compensation for Orthogonal Frequency Division Multiplexing (OFDM) suitable for mobile underwater acoustic communication is proposed. The scheme is applicable to underwater acoustic communication between rapidly moving platforms. Considering the structural characteristics of OFDM symbols, re-sampling and time-frequency differential code mapping are used to realize the broadband and narrowband Doppler compensation. The experimental results prove the feasibility of ...

Zhengrong Pan; Chi Wang; Jingwei Yin

2013-01-01

446

The Coverage Bias of Mobile Web Surveys Across European Countries  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 th...

Marek Fuchs; Britta Busse

2009-01-01

447

Path planning for data assimilation in mobile environmental monitoring systems  

Digital Repository Infrastructure Vision for European Research (DRIVER)

By combining a low-order model of forecast errors, the extended Kalman filter, and classical continuous optimization, we develop an integrated methodology for planning mobile sensor paths to sample continuous fields. Agent trajectories are developed that specifically take into account the fact that data collected will be used for near real-time assimilation with large predictive models. This aspect of the problem has significant implications because the trajectories generated are very differe...

Hover, Franz S.

2009-01-01

448

Trusted Computing in Mobile Action  

CERN Document Server

Due to the convergence of various mobile access technologies like UMTS, WLAN, and WiMax the need for a new supporting infrastructure arises. This infrastructure should be able to support more efficient ways to authenticate users and devices, potentially enabling novel services based on the security provided by the infrastructure. In this paper we exhibit some usage scenarios from the mobile domain integrating trusted computing, which show that trusted computing offers new paradigms for implementing trust and by this enables new technical applications and business scenarios. The scenarios show how the traditional boundaries between technical and authentication domains become permeable while a high security level is maintained.

Kuntze, N; Kuntze, Nicolai; Schmidt, Andreas U.

2006-01-01

449

Mobile Localization Based on Clustering  

Directory of Open Access Journals (Sweden)

Full Text Available This work presents a mobile location management technique based on the clustering. This technique can be implemented on next generation mobile networks by exploiting the data available on the users (age, function, address, workplace… etc, existing infrastructure (roads, location of base stations… etc and the users' displacements history.The simulations are carried out using a realistic model of movements. The results show that our strategy requires a minimum number of location messages compared to the static and dynamic location management techniques.

Malika BELKADI

2013-07-01

450

Symbian `vulnerability' and Mobile Threats  

CERN Document Server

Modern technologies are becoming ever more integrated with each other. Mobile phones are becoming increasing intelligent, and handsets are growing ever more like computers in functionality. We are entering a new era - the age of smart houses, global advanced networks which encompass a wide range of devices, all of them exchanging data with each other. Such trends clearly open new horizons to malicious users, and the potential threats are self evident. In this paper, we study and discuss one of the most famous mobile operating systems 'Symbian'; its vulnerabilities and recommended protection technologies.

Gharibi, Wajeb

2012-01-01

451

INTELLIGENCE IN MOBILE ROBOT NAVIGATION  

Directory of Open Access Journals (Sweden)

Full Text Available The research was focused on implementation of mobile robots navigation algorithm. One of the most critical parts of the mobile robot navigation is the self localization of the robot. For the robot localization and modeling of the environment an RBF type artificial neural network is used. In the current paper an efficient, real time functioning hardware implementation on FPGA circuit with parallel pipeline architecture of the RBF ANN is discussed. The sub modules of the navigation algorithm, the general architecture of the system is presented.

Sandor Tihamer Brassai

2012-11-01

452

LiveCode mobile development  

CERN Document Server

A practical guide written in a tutorial-style, ""LiveCode Mobile Development Hotshot"" walks you step-by-step through 10 individual projects. Every project is divided into sub tasks to make learning more organized and easy to follow along with explanations, diagrams, screenshots, and downloadable material.This book is great for anyone who wants to develop mobile applications using LiveCode. You should be familiar with LiveCode and have access to a smartphone. You are not expected to know how to create graphics or audio clips.

Lavieri, Edward D

2013-01-01

453

Lawrence Livermore National Laboratory hot spot mobile laboratory  

Energy Technology Data Exchange (ETDEWEB)

Gross alpha/beta/tritium liquid The Hot Spot Mobile Laboratory is an asset used to analyze samples (some high hazard) from the field. Field laboratories allow the quick turnaround of sa