WorldWideScience

Sample records for mobile direct-reading sampling

  1. Direct reading dosimeter

    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

    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. Effective Mobile Sampling In Broad Cast Network

    Sivakumar, K.; Ravichandran, T.

    2012-08-01

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

  4. Direct-reading spectrochemical analysis of soils and plant ashes

    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)

  5. Analytical laboratory and mobile sampling platform

    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

  6. Direct-reading dial for noise temperature and noise resistance

    Diamond, J.M.

    1967-01-01

    An attenuator arrangement for a noise generator is described. The scheme permits direct reading of both noise resistance and noise temperature¿the latter with a choice of source resistance.......An attenuator arrangement for a noise generator is described. The scheme permits direct reading of both noise resistance and noise temperature¿the latter with a choice of source resistance....

  7. Direct reading spectrochemical analysis of sodium uranate

    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

  8. Performance test of SAUNA xenon mobile sampling system

    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)

  9. A Refined Experience Sampling Method to Capture Mobile User Experience

    Cherubini, Mauro; Oliver, Nuria

    2009-01-01

    This paper reviews research methods used to understand the user experience of mobile technology. The paper presents an improvement of the Experience Sampling Method and case studies supporting its design. The paper concludes with an agenda of future work for improving research in this field. Keywords: Research methods, topology, case study, contrasting graph, Experience Sampling Method

  10. Direct Liquid Sampling for Corona Discharge Ion Mobility Spectrometry.

    Sabo, Martin; Malásková, Michaela; Harmathová, Olga; Hradski, Jasna; Masár, Marián; Radjenovic, Branislav; Matejčík, Štefan

    2015-07-21

    We present a new technique suitable for direct liquid sampling and analysis by ion mobility spectrometry (IMS). The technique is based on introduction of a droplet stream to the IMS reaction region. The technique was successfully used to detect explosives dissolved in methanol and oil as well as to analyze amino acids and dipeptides. One of the main advantages of this technique is its ability to analyze liquid samples without the requirement of any special solution. PMID:26154532

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

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

    1964-07-01

    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.

  12. Direct-reading dosimeters for space life science experiments

    Thomson, I.; Mackay, G.

    Future space missions will require more detailed knowledge of radiation effects on electronics and humans. The longer the flight duration, the greater the potential hazard, as is shown in an overview of space radiation issues. Space radiation is very different from radiation of concern in terrestrial applications; not only is the physical nature of the radiation different, but its temporal and spatial variations add another dimension of complexity. It is very important to be able to measure space radiation with real time electronic devices which are small and can measure the different types of space radiation and warn of dangerously high levels. New, direct-reading electronic radiation monitoring techniques are described along with their application to dosimetry in space. It is shown that miniature silicon sensors can be used for the separate measurement of trapped high-energy protons and electrons, and cosmic rays. Two examples are used to illustrate the potential of these new technologies in life sciences and electronics applications.

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

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

  14. Experience-Sampling Methodology with a Mobile Device in Fibromyalgia

    Castilla Diana

    2012-01-01

    Full Text Available This work describes the usability studies conducted in the development of an experience-sampling methodology (ESM system running in a mobile device. The goal of the system is to improve the accuracy and ecology in gathering daily self-report data in individuals suffering a chronic pain condition, fibromyalgia. The usability studies showed that the developed software to conduct ESM with mobile devices (smartphones, cell phones can be successfully used by individuals with fibromyalgia of different ages and with low level of expertise in the use of information and communication technologies. 100% of users completed the tasks successfully, although some have completely illiterate. Also there seems to be a clear difference in the way of interaction obtained in the two studies carried out.

  15. A direct reading exposure monitor for radiation processing

    Various plastic films have been utilized to measure radiation fields. In general such films are rugged, easily handled, small enough to cause negligible perturbation on the radiation fields, and relatively inexpensive. The radiachromic materials have been shown to have advantages over other plastic fabrications in stability, reproducibility, equivalent response to electron and gamma ray processing fields, dose rate independence, and ready availability of calibration standards. Using a nylon matrix radiachromic detector, a system of direct read-out of absorbed dose has been developed to facilitate monitoring in the megarad region. When an exposed detector is inserted into the reader, the optical transmission signal is processed through an analog to digital converter. The digitized signal addresses a memory bank where the standard response curve is stored. The corresponding absorbed dose is displayed on a digital panel meter. The variation of relative sensitivity of detectors, the background of unirradiated detectors, environmental parameters, and the capacity of the memory bank are contributing factors to the total precision of the read-out system. (author)

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

    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

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

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

    2008-09-05

    A variety of analyses were conducted on selected sediment samples collected from two wells (299 W15-46 and 299-W15-48) drilled near the 216-Z-9 Trench to elucidate the form and potential for Pu and Am to be mobilized under present conditions and those that could be expected in future remediation scenarios. Analyses included moisture content, determination of the less than sand size fraction (silt plus clay), carbon analysis, SEM/EDS analysis, microwave-assisted acid digestions for total element analysis, and extraction tests using Hanford groundwater as the leachate. Results of the extraction tests were used as input to conduct equilibrium geochemical modeling of the solutions with Geochemist’s Workbench®. Geochemical modeling results for Pu were evaluated in terms of recent conclusions regarding the solubility and redox reactions of Pu by Neck et al. (2007a, 2007b). It was found that the highest concentrations of Pu and Am were associated with sediments of low silt/clay content and occur above silt/clay rich layers within the sediment profile. It was also found that the Pu and Am were relatively enriched in the silt/clay portion of these samples. The fact that the highest concentrations of Pu and Am occurred in sediments with low silt/clay contents suggests that waste solutions had perched on top of the low permeability silt/clay rich layers and interactions with the high silt/clay layers was minimal. SEM/EDS analysis indicated that the Pu and Am in these sediments does not occur as discrete micron size particles, and therefore must occur as mononuclear or polynuclear/ nanoclusters size particles adsorbed throughout the sediment samples. Leaching of these samples with Hanford groundwater indicates that release of Pu and Am from the sediments is correlated most significantly with the acidity of the water and not the initial concentrations of Pu and Am in the sediments. Only extracts that were acidic after contact with the sediments (pH 4.3 to 5.4) contained

  18. Industrial Component-based Sample Mobile Robot System

    Péter Kucsera

    2007-12-01

    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.

  19. Direct-reading spectrochemical analysis of magnesium alloys

    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

  20. Volatile/mobile trace elements in meteoritic, non-lunar basalts: Guides to Martian sample contents

    Lipschutz, M. E.; Paul, R. L.

    1988-01-01

    A variety of genetic processes on or in extraterrestrial objects can be examined by study of volatile/mobile trace elements. Doubtless, considerable efforts will be expended on determining these elements in returned Martian samples. The purpose is to estimate levels of such elements expected to be present in returned Martian samples. Some ideas about Martian genesis were already advanced from the volatile/mobile element contents in SNC meteorites, assuming that Mars was their parent body. Even is Mars and the SNC meteorite parent body are identical, compositional ranges for returned Martian samples should exceed those of SNC meteorites. It is expected, therefore, that Martian samples returned from locations other than Polar regions will have indigenous volatile/mobile element contents within howardite-diogenite ranges. Elements with strong lithophile tendences may be more abundant, as they are in many lunar samples. Most of these elements should be at ppb levels except for Co, Ga, Zn, and Rb, which should lie at ppm levels. If Martian volcanism was accompanied by fumarolic emanations, it should be reflected in occasional huge enrichments of mobile trance elements, as in lunar meteorite Y 791197. During collection and transport Earthward, samples must be contained under conditions appropriate to ppb concentrations. Materials must be used that will not cause contamination which occurred during the Apollo program, where indium from seals contaminated many samples.

  1. Improved Sampling for Terrestrial and Mobile Laser Scanner Point Cloud Data

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

    2013-01-01

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

  2. The Explicit Instruction of Reading Strategies: Directed Reading Thinking Activity vs. Guided Reading Strategies

    Mohammad Mehdi Yazdani; Mojtaba Mohammadi

    2015-01-01

    Investigating the efficiencies and deficiencies of reading strategies is one of the noticeable issues in the related theory and research in reading comprehension instruction. This study was to examine the impact of Directed Reading Thinking Activity (DRTA) and Guided Reading (GR) on reading comprehension. Sixty three Iranian students of grade one in Shahed high school in the city of Bojnourd took part in the study. They were assigned in three groups, one control and two experimental groups. T...

  3. Direct-reading inhalable dust monitoring--an assessment of current measurement methods.

    Thorpe, Andrew; Walsh, Peter T

    2013-08-01

    Direct-reading dust monitors designed specifically to measure the inhalable fraction of airborne dust are not widely available. Current practice therefore often involves comparing the response of photometer-type dust monitors with the concentration measured with a reference gravimetric inhalable sampler, which is used to adjust the dust monitor measurement. However, changes in airborne particle size can result in significant errors in the estimation of inhalable concentration by this method. The main aim of this study was to assess how these dust monitors behave when challenged with airborne dust containing particles in the inhalable size range and also to investigate alternative dust monitors whose response might not be as prone to variations in particle size or that could be adapted to measure inhalable dust concentration. Several photometer-type dust monitors and a Respicon TM, tapered element oscillating microbalance (TEOM) personal dust monitor (PDM) 3600, TEOM 1400, and Dustrak DRX were assessed for the measurement of airborne inhalable dust during laboratory and field trials. The PDM was modified to allow it to sample and measure larger particles in the inhalable size range. During the laboratory tests, the dust monitors and reference gravimetric samplers were challenged inside a large dust tunnel with aerosols of industrial dusts known to present an inhalable hazard and aluminium oxide powders with a range of discrete particle sizes. A constant concentration of each dust type was generated and peak concentrations of larger particles were periodically introduced to investigate the effects of sudden changes in particle size on monitor calibration. The PDM, Respicon, and DataRam photometer were also assessed during field trials at a bakery, joinery, and a grain mill. Laboratory results showed that the Respicon, modified PDM, and TEOM 1400 observed good linearity for all types of dust when compared with measurements made with a reference IOM sampler; the

  4. PEMBELAJARAN MEMBACA TERBIMBING DENGAN TEKNIK DIRECTED READING THINKING ACTIVITIES DI SEKOLAH DASAR

    Alif Mudiono

    2012-04-01

    Full Text Available Abstract: Teaching Guided Reading based on Directed Reading Thinking Activities at the Elemen­tary Schools. This  study is aimed at describing the elementary school teachers knowledge about guided reading thinking model by the Directed Reading Thinking Activities, the learning need analysis and the elementary school teacher perception on DRTA technique. The subject of the research is the teachers teaching the reading comprehension in class V in the elementary school. Data collected by using questionnaire, interview, and observation. The descriptive design is done by validating, identifying, classifying data. Data are analyzed by computing the percentage. The result of the study points out that reading comprehension in the elementary school in Blitar can be developed through DRTA model. Yet, the development of the DRTA model is much dependent on the teacher's creativity. Furthermore, this model can be packaged so that it can increase the students' critical power towards the content of the texs. Abstrak: Pembelajaran Membaca Terbimbing dengan Teknik Directed Reading Thinking Activities di Sekolah Dasar. Penelitian ini bertujuan mendeskripsikan (1 persepsi guru tentang perlunya pembe­lajaran membaca terbimbing, (2 kebutuhan pembelajaran, dan (3 persepsi guru tentang model rancangan pembelajaran membaca terbimbing dengan teknik DRTA di SD. Subjek penelitian adalah guru bahasa Indonesia di kelas V SD. Data diambil dengan menggunakan instrumen angket yang dilengkapi pedoman wawancara dan observasi. Data dianalisis dengan rancangan deskriptif melalui pengecekan keabsahan data, pengklasifikasian data, dan analisis data. Hasil penelitian membuktikan bahwa sebagian besar guru menanggapi positif bahwa pembelajaran membaca pemahaman di SD yang semula dilaksanakan secara terpisah dengan aspek keterampilan berbahasa lainnya, dapat dikembangkan dengan model pembelajaran membaca terbimbing dengan teknik DRTA.

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

    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.

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

    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

    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.

  7. Sediment Sampling for Poly-Aromatic Hydrocarbons (PAHs) in Mobile Bay and Mississippi Sound in 2013 (NODC Accession 0116480)

    National Oceanic and Atmospheric Administration, Department of Commerce — Sediment samples were collected at ten sites within Mobile Bay and Mississippi Sound on January 28, 2013, for PAH analysis. All samples tested were below detection...

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

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

    1966-07-01

    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)

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

    Richwine, Kathryn A.; Osterman, Lisa E.

    2012-01-01

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

  10. Direct determination of ammoniacal nitrogen in water samples using corona discharge ion mobility spectrometry.

    Jafari, M T; Khayamian, T

    2008-09-15

    In this study, direct determination of ammoniacal nitrogen residues in water samples using corona discharge ion mobility spectrometry (CD-IMS) was investigated. Pyridine was used as an alternate reagent gas to enhance selectivity and sensitivity of the method. The results indicate that the limit of detection (LOD) was about 9.2x10(-3)mugmL(-1) and the linear dynamic range was obtained from 0.03 to 2.00mugmL(-1). The relative standard deviation was about 11%. Furthermore, this method was successfully applied to the direct determination of ammoniacal nitrogen in river and tap water samples and the results were compared with the Nessler method. The comparison of the results validates the potential of the proposed method as an alternative technique for the analysis of the ammoniacal nitrogen in water samples. PMID:18761176

  11. Comparison of mobile and stationary spore-sampling techniques for estimating virulence frequencies in aerial barley powdery mildew populations

    Hovmøller, M.S.; Munk, L.; Østergård, Hanne

    1995-01-01

    Gene frequencies in samples of aerial populations of barley powdery mildew (Erysiphe graminis f.sp. hordei), which were collected in adjacent barley areas and in successive periods of time, were compared using mobile and stationary sampling techniques. Stationary samples were collected from trap ...

  12. Mobilities

    . The selection will cover diverse topics such as theories, concepts, methods, and approaches as well as it will explore various modes of mobilities and the relationship to everyday life practices. The selection also covers the ‘politics of mobilities’ from local urban planning schemes to geopolitical...... issues of refugees and environmental degradation. The spaces and territories marked by mobilities as well as the sites marked by the bypassing of such are explored. Moreover, the architectural and technological dimensions to infrastructures and sites of mobilities will be included as well as the issues...... of power, social exclusion, consumption, surveillance and mobilities history to mention some of the many themes covered by this reference work. This new title will focus on the academic contributions to this understanding by primarily focusing on works and publications in the aftermath of the seminal...

  13. Thermoluminescent dosimeter-direct reading dosimeter dose discrepancy: studies on the role of beta radiation fields

    Dosimetry studies pertaining to thermoluminescent dosimeter (TLD) and direct reading dosimeter (DRD) have been performed for photons, beta fields and mixed field of photons and beta particles. In lab conditions, for pure photon radiation fields, the doses estimated using DRD and TLD match within the acceptable limits whereas in the mixed fields of photons and high energy beta particles, it has been found that the DRD doses are always higher than the corresponding whole body doses estimated by the TLD. This is due to the fact that DRD responds to high energy beta particles and the typical response of the DRD to high energy beta particles is observed to be in the range of 15-30%. This may lead to TLD-DRD dose discrepancy at workplaces where the skin doses received by the radiation workers from high energy beta sources in a given monitoring period are significant. The paper also provides a comparison of three different TLD-DRD discrepancy identification criteria available in literature for exposure conditions with a significant dose due to beta radiations. In addition, estimate of threshold beta dose which may lead to discrepancy as per the criteria have been studied. The results reported in this paper would be helpful in understanding the discrepancy arising out of variable response of DRD to beta radiations and will be useful in resolving the discrepancy in such cases. (author)

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

    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

  15. Direct reading spectrochemical determination of aluminium, iron and silicon in fluorite; Determinacion espectroquimica de lectura directa de aluminio, hierro y silicio en fluorita

    Roca, M.

    1966-07-01

    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.

  16. Using Directed Reading Thinking Activity Strategies To Teach Students Reading Comprehension Skills in Middle Grades Language Arts.

    DeFoe, Marguerite Corbitt

    This practicum was designed to use directed reading thinking activity strategies to teach reading comprehension skills to middle grades language arts students who frequently failed to make passing scores in reading comprehension exercises. The program included three specific strategies. The first strategy was to teach the students higher-order…

  17. Anxiety in high-functioning autism: A pilot study of experience sampling using a mobile platform.

    Hare, Dougal Julian; Gracey, Carolyn; Wood, Christopher

    2016-08-01

    Anxiety and stress are everyday issues for many people with high-functioning autism, and while cognitive-behavioural therapy is the treatment of choice for the management of anxiety, there are challenges in using it with people with high-functioning autism. This study used modified experience sampling techniques to examine everyday anxiety and stress in adults with high-functioning autism and to explore the feasibility of delivering real-time stress management techniques using a mobile platform. High levels of anxiety were found to be characterised by worry, confusing thoughts and being alone but was not associated with internal focus, imagery or rumination. Participants reported improved mood and less worry and anxious thinking in the active phase of the study. These results support previous studies indicating that people with high-functioning autism differ in their experience of anxiety and provided preliminary data on the feasibility of real-time stress management. The limitations of this approach are discussed together with considerations for future work in the area of developing clinical interventions on mobile platforms. PMID:26514793

  18. Carbon Nanotube Emissions from Arc Discharge Production: Classification of Particle Types with Electron Microscopy and Comparison with Direct Reading Techniques

    Ludvigsson, Linus; Isaxon, Christina; Nilsson, Patrik T.; Tinnerberg, Hakan; Messing, Maria E.; Rissler, Jenny; Skaug, Vidar; Gudmundsson, Anders; Bohgard, Mats; Hedmer, Maria; Pagels, Joakim

    2016-01-01

    Introduction: An increased production and use of carbon nanotubes (CNTs) is occurring worldwide. In parallel, a growing concern is emerging on the adverse effects the unintentional inhalation of CNTs can have on humans. There is currently a debate regarding which exposure metrics and measurement strategies are the most relevant to investigate workplace exposures to CNTs. This study investigated workplace CNT emissions using a combination of time-integrated filter sampling for scanning electron microscopy (SEM) and direct reading aerosol instruments (DRIs). Material and Methods: Field measurements were performed during small-scale manufacturing of multiwalled carbon nanotubes using the arc discharge technique. Measurements with highly time- and size-resolved DRI techniques were carried out both in the emission and background (far-field) zones. Novel classifications and counting criteria were set up for the SEM method. Three classes of CNT-containing particles were defined: type 1: particles with aspect ratio length:width >3:1 (fibrous particles); type 2: particles without fibre characteristics but with high CNT content; and type 3: particles with visible embedded CNTs. Results: Offline sampling using SEM showed emissions of CNT-containing particles in 5 out of 11 work tasks. The particles were classified into the three classes, of which type 1, fibrous CNT particles contributed 37%. The concentration of all CNT-containing particles and the occurrence of the particle classes varied strongly between work tasks. Based on the emission measurements, it was assessed that more than 85% of the exposure originated from open handling of CNT powder during the Sieving, mechanical work-up, and packaging work task. The DRI measurements provided complementary information, which combined with SEM provided information on: (i) the background adjusted emission concentration from each work task in different particle size ranges, (ii) identification of the key procedures in each work

  19. Mobile Learning Perceptions of the Prospective Teachers (Turkish Republic of Northern Cyprus Sampling)

    Serin, Oguz

    2012-01-01

    The aim of this research is to analyze mobile learning perceptions and mobile learning levels of the prospective teachers at a university in Turkish Republic of Northern Cyprus according to their departments and gender. The research consists of 355 prospective teachers studying at a private university. The "Mobile Learning Perception Scale" was…

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

    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

  1. Determination of Si, Mn and P in Pig Iron by Direct-Reading Spectrography%直读光谱法测定生铁中硅锰磷

    谢小运; 刘跃进

    2011-01-01

    The sample was prepared with HK 200 sample grinder, and contents of Si, Mn and P in the sample were determined by the direct-reading spectrometer. Influential factors, including matrix effect, position of slit, analytical conditions and method of sample preparation were discussed. Under the optimized experimental condition, values of RSD's (n-= 11) of the 3 elements found were less than 5%. The proposed method was applied to analysis of sample of pig iron, and the results obtained were in conformity with those by XRFS and spectrophotometry.%提出了采用HK 200型磨样机制样,直读光谱法测定生铁中硅、锰和磷的含量.探讨了基体效应、狭缝位置、分析条件和制样方法等影响因素.在优化的试验条件下,3种元素的相对标准偏差(n=11)均小于5%.方法用于生铁试样分析,测定结果与X射线荧光光谱法和分光光度法的测定结果基本一致.

  2. Automated large scale parameter extraction of road-side trees sampled by a laser mobile mapping system

    Lindenbergh, R.C.; Berthold, D.; Sirmacek, B.; Herrero-Huerta, M.; Wang, J.; Ebersbach, D.

    2015-01-01

    In urbanized Western Europe trees are considered an important component of the built-up environment. This also means that there is an increasing demand for tree inventories. Laser mobile mapping systems provide an efficient and accurate way to sample the 3D road surrounding including notable roadsid

  3. State of the Art of Language Learning Design Using Mobile Technology: Sample Apps and Some Critical Reflection

    Bárcena, Elena; Read, Timothy; Underwood, Joshua; Obari, Hiroyuki; Cojocnean, Diana; Koyama, Toshiko; Pareja-Lora, Antonio; Calle, Cristina; Pomposo, Lourdes; Talaván, Noa; Ávila-Cabrera, José; Ibañez, Ana; Vermeulen, Anna; Jordano, María; Arús-Hita, Jorge; Rodríguez, Pilar; Castrillo, María Dolores; Kétyi, Andras; Selwood, Jaime; Gaved, Mark; Kukulska-Hulme, Agnes

    2015-01-01

    In this paper, experiences from different research groups illustrate the state-of-the-art of Mobile Assisted Language Learning (henceforth, MALL) in formal and non-formal education. These research samples represent recent and on-going progress made in the field of MALL at an international level and offer encouragement for practitioners who are…

  4. Direct Reading of Bona Fide Barcode Assays for Diagnostics with Smartphone Apps

    Wong, Jessica X. H.; Li, Xiaochun; Liu, Frank S. F.; Yu, Hua-Zhong

    2015-06-01

    The desire to develop new point-of-care (POC) diagnostic tools has led to the adaptation of smartphones to tackle limitations in state-of-the-art instrumentation and centralized laboratory facilities. Today’s smartphones possess the computer-like ability to image and process data using mobile apps; barcode scanners are one such type of apps. We demonstrate herein that a diagnostic assay can be performed by patterning immunoassay strips in a bona fide barcode format such that after target binding and signal enhancement, the linear barcode can be read directly with a standard smartphone app. Quantitative analysis can then be performed based on the grayscale intensities with a customized mobile app. This novel diagnostic concept has been validated for a real-world application, i.e., the detection of human chorionic gonadotropin, a pregnancy hormone. With the possibility of multiplex detection, the barcode assay protocol promises to boost POC diagnosis research by the direct adaptation of mobile devices and apps.

  5. Distribution, accumulation and mobility of mercury in superficial sediment samples from Tianjin, northern China.

    Wu, Guanghong; Wei, Zheng; Su, Ruixian

    2011-09-01

    Seventeen sediment samples at three representative sites (the Yuqiao Reservoir, the Haihe River and the Haihe River Estuary) in Tianjin, northern China, were analyzed to investigate the pollution status, accumulation and mobility of mercury (Hg). The results show that the Haihe River has to be considered as moderate to strongly contaminated with Hg (2 urban area were found to have very high Hg concentrations, which were significantly related to Hg emissions from coal-fired utility boilers. In the Yuqiao Reservoir, the surface sediments have to be considered as unpolluted with Hg (mean I(geo) = -0.05 < 0) and the Haihe River Estuary sediments have to be considered as unpolluted to moderately polluted with Hg (0 < mean I(geo) = 0.18 < 1). Sediment-bound Hg in the Yuqiao Reservoir and the Haihe River Estuary was found to be predominantly associated with the organo-chelated phase of the sediment (38.3% and 50.5%, respectively). However, unlike the Yuqiao Reservoir and the Haihe River Estuary, Hg in the Haihe River sediments existed mainly as sulfide Hg and elemental Hg, which accounted for 54.2% and 30.7% of total Hg, respectively. The availability of this element seemed restricted. The majority of Hg contamination in the Haihe River sediments had been attributed to historic and modern atmospheric deposition and Hg released from the Haihe River sediments didn't seem to be an important pollutant pathway into the Haihe River Estuary. The results provide new insights into Hg contamination in this region. PMID:21805008

  6. Direct Reading of Bona Fide Barcode Assays for Diagnostics with Smartphone Apps

    Wong, Jessica X. H.; Li, Xiaochun; Liu, Frank S. F.; Yu, Hua-Zhong

    2015-01-01

    The desire to develop new point-of-care (POC) diagnostic tools has led to the adaptation of smartphones to tackle limitations in state-of-the-art instrumentation and centralized laboratory facilities. Today’s smartphones possess the computer-like ability to image and process data using mobile apps; barcode scanners are one such type of apps. We demonstrate herein that a diagnostic assay can be performed by patterning immunoassay strips in a bona fide barcode format such that after target bind...

  7. Necessary and Sufficient Conditions for Circle Formations of Mobile Agents with Coupling Delay via Sampled-Data Control

    Jianwei Zhao

    2016-01-01

    Full Text Available A circle forming problem for a group of mobile agents governed by first-order system is investigated, where each agent can only sense the relative angular positions of its neighboring two agents with time delay and move on the one-dimensional space of a given circle. To solve this problem, a novel decentralized sampled-data control law is proposed. By combining algebraic graph theory with control theory, some necessary and sufficient conditions are established to guarantee that all the mobile agents form a pregiven circle formation asymptotically. Moreover, the ranges of the sampling period and the coupling delay are determined, respectively. Finally, the theoretical results are demonstrated by numerical simulations.

  8. Direct reading measurement of absorbed dose with plastic scintillators--the general concept and applications to ophthalmic plaque dosimetry.

    Flühs, D; Heintz, M; Indenkämpen, F; Wieczorek, C

    1996-03-01

    We have developed dosemeters based on plastic scintillators for a variety of applications in radiation therapy. The dosemeters consist basically of a tissue-substituting scintillator probe, an optical fiber light guide, and a photomultiplier tube. The background light generated in the light guide can be compensated by a simultaneous measurement of the light from a blind fiber. Plastic scintillator dosemeters combine several advantageous properties which render them superior to other dosemeter types for many applications: minimal disturbance of the radiation field because of the homogeneous detector volume and the approximate water equivalence; no dependence on temperature and pressure (under standard clinical conditions) and angle of radiation incidence; no high voltage in the probe; high spatial resolution due to small detector volumes; direct reading of absorbed doses; and a large dynamical range. The high spatial resolution together with direct reading make these detectors suitable for real-time 3-D dosimetry using multi-channel detector systems. Such a system has been developed for eye plaque dosimetry and successfully employed for dosimetric treatment optimization. The plaque optimization can be performed by dosimetric measurements for the individual patient ("dosimetric treatment planning"). The time consumption for this procedure is less than for a physically correct computer-based therapy planning, e.g., by means of a Monte Carlo simulation. PMID:8815386

  9. State of the art of language learning design using mobile technology: sample apps and some critical reflection

    Bárcena, Elena; Read, Timothy; Underwood, Joshua; Obari , Hiroyuki; Cojocnean, Diana; Koyama, Toshiko; Pareja-Lora, Antonio; Calle, Cristina; Pomposo, Lourdes; Talaván, Noa; Ávila-Cabrera , José; Ibañez, Ana; Vermeulen, Anna; Jordano, María; Arús-Hita , Jorge

    2015-01-01

    In this paper, experiences from different research groups illustrate the state-of-the-art of Mobile Assisted Language Learning (henceforth, MALL) in formal and non-formal education. These research samples represent recent and on-going progress made in the field of MALL at an international level and offer encouragement for practitioners who are trying to incorporate these approaches into mainline second language teaching. Furthermore, researchers interested in the field can see that the work p...

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

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

    2011-05-01

    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(α)), detection capability (CC(β)), 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

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

    M. Zavala

    2008-04-01

    Full Text Available Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intrinsically difficult to estimate due to the large number of parameters affecting the emissions variability within and across vehicles types. The MCMA-2003 Campaign in Mexico City has showed the utility of using a mobile laboratory to sample and characterize specific classes of motor vehicles to better quantify their emissions characteristics as a function of their driving cycles. The technique clearly identifies "high emitter" vehicles via individual exhaust plumes, and also provides fleet average emission rates. We have applied this technique to Mexicali during the Border Ozone Reduction and Air Quality Improvement Program for the Mexicali-Imperial Valley in 2005. In this paper we analyze the variability of measured emission ratios for emitted NOx, CO, specific VOCs, NH3, and some primary fine particle components and properties obtained during the Border Ozone Reduction and Air Quality Improvement Program for the Mexicali-Imperial Valley in 2005 by deploying a mobile laboratory in roadside stationary sampling, chase and fleet average operational sampling modes. The measurements reflect various driving modes characteristic of the urban fleets. The observed variability for all measured gases and particle emission ratios is greater for the chase and roadside stationary sampling than for fleet average measurements. The fleet average sampling mode captured the effects of traffic conditions on the measured on-road emission ratios, allowing the use of fuel-based emission ratios to assess the validity of traditional "bottom-up" emissions inventories. Using the measured on-road emission ratios, we estimate CO and NOx mobile emissions of 175±62 and 10.4±1.3 metric tons/day, respectively, for the gasoline vehicle fleet in

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

    M. Zavala

    2009-01-01

    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

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

    Jafari, Mohammad T; Riahi, Farhad

    2014-05-23

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

  14. Assessing the Risk Factors of Cyber and Mobile Phone Bullying Victimization in a Nationally Representative Sample of Singapore Youth.

    Holt, Thomas J; Fitzgerald, Sarah; Bossler, Adam M; Chee, Grace; Ng, Esther

    2016-04-01

    This study utilized routine activity theory to examine the relationships between online behaviors, target suitability, and cyber and mobile phone-based bullying victimization in a nationally representative sample of youth from nine schools across Singapore. Key measures in all three categories-access to technology, online routine behaviors, and target suitability-were significant predictors of both forms of bullying victimization. In particular, females and victims of physical bullying were more likely to experience both forms of victimization. Access to technology and online routine behaviors predicted cyber and mobile phone-based bullying victimization differently. These findings demonstrate that routine activity theory is a viable framework to understand online bullying in non-Western nations, consistent with the existing literature on Western nations. PMID:25326463

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

    Roca, M.; Capdevila, C.

    1966-07-01

    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.

  16. Central aperture detection for auto direct read-write photoresist fabrication and inspection

    Sierchio, Justin M.; Zaverton, Melissa; Johnson, Lee; Densmore, Victor; Milster, Thomas

    2014-08-01

    We show the design for a laser scanning microscopy defect detection system based upon the idea that the light can reflect off a photoresist-laden fused-silica sample containing defects, allowing height and depth information to be obtained through changes in light intensity. Image registration using predefined points is employed. Image processing techniques involving median and deconvolution filtering are used. Results show that the 2.1-μm resolution of these defects is obtainable, and receiver operating characteristic curves are used for quantifying results. Discriminabilities of 0.73 are achieved. Preliminary results for larger-array patterns through stitching processes are also shown.

  17. Study of the macrozooplankton within the samples taken at the Mobile site from November 1977 through November 1978. A data report of the Lawrence Berkeley Laboratory

    Steen, J.; Gunter, G.

    1981-11-01

    This report brings together the results of a re-examination of zooplankton samples from the Mobile OTEC site (29/sup 0/N-88/sup 0/W) in the northern Gulf of Mexico for macrozooplankton larger than 15 mm.

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

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

    2012-04-01

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

  19. Automated Large Scale Parameter Extraction of Road-Side Trees Sampled by a Laser Mobile Mapping System

    Lindenbergh, R. C.; Berthold, D.; Sirmacek, B.; Herrero-Huerta, M.; Wang, J.; Ebersbach, D.

    2015-08-01

    In urbanized Western Europe trees are considered an important component of the built-up environment. This also means that there is an increasing demand for tree inventories. Laser mobile mapping systems provide an efficient and accurate way to sample the 3D road surrounding including notable roadside trees. Indeed, at, say, 50 km/h such systems collect point clouds consisting of half a million points per 100m. Method exists that extract tree parameters from relatively small patches of such data, but a remaining challenge is to operationally extract roadside tree parameters at regional level. For this purpose a workflow is presented as follows: The input point clouds are consecutively downsampled, retiled, classified, segmented into individual trees and upsampled to enable automated extraction of tree location, tree height, canopy diameter and trunk diameter at breast height (DBH). The workflow is implemented to work on a laser mobile mapping data set sampling 100 km of road in Sachsen, Germany and is tested on a stretch of road of 7km long. Along this road, the method detected 315 trees that were considered well detected and 56 clusters of tree points were no individual trees could be identified. Using voxels, the data volume could be reduced by about 97 % in a default scenario. Processing the results of this scenario took ~2500 seconds, corresponding to about 10 km/h, which is getting close to but is still below the acquisition rate which is estimated at 50 km/h.

  20. Anxiety in High-Functioning Autism: A Pilot Study of Experience Sampling Using a Mobile Platform

    Hare, Dougal Julian; Gracey, Carolyn; Wood, Christopher

    2016-01-01

    Anxiety and stress are everyday issues for many people with high-functioning autism, and while cognitive-behavioural therapy is the treatment of choice for the management of anxiety, there are challenges in using it with people with high-functioning autism. This study used modified experience sampling techniques to examine everyday anxiety and…

  1. Experimental study of the response functions of direct-reading instruments measuring surface-area concentration of airborne nanostructured particles

    Bau, Sébastien; Witschger, Olivier; Gensdarmes, François; Thomas, Dominique

    2009-05-01

    An increasing number of experimental and theoretical studies focus on airborne nanoparticles (NP) in relation with many aspects of risk assessment to move forward our understanding of the hazards, the actual exposures in the workplace, and the limits of engineering controls and personal protective equipment with regard to NP. As a consequence, generating airborne NP with controlled properties constitutes an important challenge. In parallel, toxicological studies have been carried out, and most of them support the concept that surface-area could be a relevant metric for characterizing exposure to airborne NP [1]. To provide NP surface-area concentration measurements, some direct-reading instruments have been designed, based on attachment rate of unipolar ions to NP by diffusion. However, very few information is available concerning the performances of these instruments and the parameters that could affect their responses. In this context, our work aims at characterizing the actual available instruments providing airborne NP surface-area concentration. The instruments (a- LQ1-DC, Matter Engineering; b-AeroTrak™ 9000, TSI; c- NSAM, TSI model 3550;) are thought to be relevant for further workplace exposure characterization and monitoring. To achieve our work, an experimental facility (named CAIMAN) was specially designed, built and characterized.

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

    Marcos César Lima de Mendonça

    2011-06-01

    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.

  3. Interstitial oxygen mobility in superconducting samples of Bi2Sr2CaCu2O8+y

    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

  4. 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

    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

  5. Mobilities Mobilities

    César Pompeyo

    2011-12-01

    Full Text Available Urry, John (2007 Mobilities.Oxford: Polity Press.Urry, John (2007 Mobilities.Oxford: Polity Press.John Urry (1946-, profesor en la Universidad de Lancaster, es un sociólogo de sobra conocido y altamente reputado en el panorama internacional de las ciencias sociales. Su dilatada carrera, aparentemente dispersa y diversificada, ha seguido senderos bastante bien definidos dejando tras de sí un catálogo extenso de obras sociológicas de primer nivel. Sus primeros trabajos se centraban en el campo de la teoría social y la filosofía de las ciencias sociales o de la sociología del poder [...

  6. Mapping Vineyard Leaf Area Using Mobile Terrestrial Laser Scanners: Should Rows be Scanned On-the-Go or Discontinuously Sampled?

    del-Moral-Martínez, Ignacio; Rosell-Polo, Joan R; Company, Joaquim; Sanz, Ricardo; Escolà, Alexandre; Masip, Joan; Martínez-Casasnovas, José A; Arnó, Jaume

    2016-01-01

    The leaf area index (LAI) is defined as the one-side leaf area per unit ground area, and is probably the most widely used index to characterize grapevine vigor. However, LAI varies spatially within vineyard plots. Mapping and quantifying this variability is very important for improving management decisions and agricultural practices. In this study, a mobile terrestrial laser scanner (MTLS) was used to map the LAI of a vineyard, and then to examine how different scanning methods (on-the-go or discontinuous systematic sampling) may affect the reliability of the resulting raster maps. The use of the MTLS allows calculating the enveloping vegetative area of the canopy, which is the sum of the leaf wall areas for both sides of the row (excluding gaps) and the projected upper area. Obtaining the enveloping areas requires scanning from both sides one meter length section along the row at each systematic sampling point. By converting the enveloping areas into LAI values, a raster map of the latter can be obtained by spatial interpolation (kriging). However, the user can opt for scanning on-the-go in a continuous way and compute 1-m LAI values along the rows, or instead, perform the scanning at discontinuous systematic sampling within the plot. An analysis of correlation between maps indicated that MTLS can be used discontinuously in specific sampling sections separated by up to 15 m along the rows. This capability significantly reduces the amount of data to be acquired at field level, the data storage capacity and the processing power of computers. PMID:26797618

  7. Mapping Vineyard Leaf Area Using Mobile Terrestrial Laser Scanners: Should Rows be Scanned On-the-Go or Discontinuously Sampled?

    Ignacio del-Moral-Martínez

    2016-01-01

    Full Text Available The leaf area index (LAI is defined as the one-side leaf area per unit ground area, and is probably the most widely used index to characterize grapevine vigor. However, LAI varies spatially within vineyard plots. Mapping and quantifying this variability is very important for improving management decisions and agricultural practices. In this study, a mobile terrestrial laser scanner (MTLS was used to map the LAI of a vineyard, and then to examine how different scanning methods (on-the-go or discontinuous systematic sampling may affect the reliability of the resulting raster maps. The use of the MTLS allows calculating the enveloping vegetative area of the canopy, which is the sum of the leaf wall areas for both sides of the row (excluding gaps and the projected upper area. Obtaining the enveloping areas requires scanning from both sides one meter length section along the row at each systematic sampling point. By converting the enveloping areas into LAI values, a raster map of the latter can be obtained by spatial interpolation (kriging. However, the user can opt for scanning on-the-go in a continuous way and compute 1-m LAI values along the rows, or instead, perform the scanning at discontinuous systematic sampling within the plot. An analysis of correlation between maps indicated that MTLS can be used discontinuously in specific sampling sections separated by up to 15 m along the rows. This capability significantly reduces the amount of data to be acquired at field level, the data storage capacity and the processing power of computers.

  8. Mobile Payload Element (MPE): Concept study for a sample fetching rover for the ESA Lunar Lander Mission

    Haarmann, R.; Jaumann, R.; Claasen, F.; Apfelbeck, M.; Klinkner, S.; Richter, L.; Schwendner, J.; Wolf, M.; Hofmann, P.

    2012-12-01

    In late 2010, the DLR Space Administration invited the German industry to submit a proposal for a study about a Mobile Payload Element (MPE), which could be a German national contribution to the ESA Lunar Lander Mission. Several spots in the south polar region of the moon come into consideration as landing site for this mission. All possible spots provide sustained periods of solar illumination, interrupted by darkness periods of several 10 h. The MPE is outlined to be a small, autonomous, innovative vehicle in the 10 kg class for scouting and sampling the environment in the vicinity of the lunar landing site. The novel capabilities of the MPE will be to acquire samples of lunar regolith from surface, subsurface as well as shadowed locations, define their geological context and bring them back to the lander. This will enable access to samples that are not contaminated by the lander descent propulsion system plumes to increase the chances of detecting any indigenous lunar volatiles contained within the samples. Kayser-Threde, as prime industrial contractor for Phase 0/A, has assembled for this study a team of German partners with relevant industrial and institutional competence in space robotics and lunar science. The primary scientific objective of the MPE is to acquire clearly documented samples and to bring them to the lander for analysis with the onboard Lunar Dust Analysis Package (L-DAP) and Lunar Volatile Resources Analysis Package (L-VRAP). Due to the unstable nature of volatiles, which are of particular scientific interest, the MPE design needs to provide a safe storage and transportation of the samples to the lander. The proposed MPE rover concept has a four-wheeled chassis configuration with active suspension, being a compromise between innovation and mass efficiency. The suspension chosen allows a compact stowage of the MPE on the lander as well as precise alignment of the solar generators and instruments. Since therefore no further complex mechanics are

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

    Delacollette Charles

    2011-05-01

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

  10. Direct-reading design charts for 75S-T6 aluminum-alloy flat compression panels having longitudinal extruded Z-section stiffeners

    Hickman, William A; Dow, Norris F

    1951-01-01

    Direct-reading design charts are presented for 75S-T6 aluminum-alloy flat compression panels having longitudinal extruded Z-section stiffeners. These charts, which cover a wide range of proportions, make possible the direct determination of the stress and all panel dimensions required to carry a given intensity of loading with a given skin thickness and effective length of panel.

  11. Ionic liquids as mobile phase additives for the high-performance liquid chromatographic analysis of fluoroquinolone antibiotics in water samples.

    Herrera-Herrera, Antonio V; Hernández-Borges, Javier; Rodríguez-Delgado, Miguel Angel

    2008-12-01

    In this work, four ionic liquids differing in the length of the alkyl chain on the imidazolium cation and one ionic liquid containing tetraethylammonium, all with the same counterion, (i.e. 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIm-BF(4)), 1-butyl-3-methylimidazolium tetrafluoroborate (BMIm-BF(4)), 1-hexyl-3-methylimidazolium tetrafluoroborate (HMIm-BF(4)), 1-methyl-3-octylimidazolium tetrafluoroborate (MOIm-BF(4)), and tetraethylammonium tetrafluroborate (Et(4)N-BF(4))) were tested as mobile phase additives for HPLC separation of a group of seven basic fluoroquinolone (FQ) antibiotics for human and veterinary use (i.e. fleroxacin, ciprofloxacin, lomefloxacin, danofloxacin, enrofloxacin, sarafloxacin, and difloxacin) using a conventional reversed-phase Nova-Pak C(18) column. Fluorescence detection was used. Among the ionic liquids selected, use of BMIm-BF(4) enabled effective separation of these compounds with relatively low analysis time (14 min). The best separation was achieved by isocratic elution at 1 mL min(-1) with 5 mmol L(-1) BMIm-BF(4) and 10 mmol L(-1) ammonium acetate at pH 3.0 with 13% (v/v) acetonitrile. Limits of detection (LODs) for fluorescence detection were in the range 0.5-11 microg L(-1). The method was tested by analyzing several water samples after the optimization of a suitable solid-phase extraction (SPE) procedure using Oasis HLB cartridges. Mean recovery values were above 84% for all analytes with LODs in the range 1-29 ng L(-1). PMID:18854988

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

    Delacollette Charles; Satimai Wichai; Thwing Julie; Eliades James; Wangroongsarb Piyaporn; Khamsiriwatchara Amnat; Kaewkungwal Jaranit

    2011-01-01

    Abstract Background Reliable information on mobility patterns of migrants is a crucial part of the strategy to contain the spread of artemisinin-resistant malaria parasites in South-East Asia, and may also be helpful to efforts to address other public health problems for migrants and members of host communities. In order to limit the spread of malarial drug resistance, the malaria prevention and control programme will need to devise strategies to reach cross-border and mobile migrant populati...

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

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

  14. Continuous-flow leaching in a rotating coiled column for studies on the mobility of toxic elements in dust samples collected near a metallurgic plant.

    Fedotov, Petr S; Ermolin, Mikhail S; Ivaneev, Alexandr I; Fedyunina, Natalia N; Karandashev, Vasily K; Tatsy, Yury G

    2016-03-01

    Continuous-flow (dynamic) leaching in a rotating coiled column has been applied to studies on the mobility of Zn, Cd, Cu, Pb, Ni, Sb, As, S, and other potentially toxic elements in atmospherically deposited dust samples collected near a large copper smelter (Chelyabinsk region, Russia). Water and simulated "acid rain" (pH 4) were used as eluents. The technique enables not only the fast and efficient leaching of elements but as well time-resolved studies on the mobilization of heavy metals, sulphur, and arsenic in environmentally relevant forms to be made. It is shown that up to 1.5, 4.1, 1.9, 11.1, and 46.1% of Pb, As, Cu, Zn, and S, correspondingly, can be easily mobilized by water. Taking into consideration that the total concentrations of these elements in the samples under investigation are surprisingly high and vary in the range from 2.7 g/kg (for arsenic) to 15.5 g/kg (for sulphur), the environmental impact of the dust may be dramatic. The simulated acid rain results in somewhat higher recoveries of elements, except Cu and Pb. The proposed approach and the data obtained can very useful for the risk assessment related to the mobility of potentially toxic elements and their inclusion in the biogeochemical cycle. PMID:26741541

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

    Beesley, Luke, E-mail: l.beesley@2007.ljmu.ac.u [Faculty of Science, Liverpool John Moores University, Liverpool L3 3AF (United Kingdom); Moreno-Jimenez, Eduardo [Departamento de Quimica Agricola, Universidad Autonoma de Madrid, 28049 Madrid (Spain); Clemente, Rafael [Dep. of Soil and Water Conservation and Organic Waste Management, CEBAS-CSIC, Campus Universitario de Espinardo, PO Box 164, 30100 Espinardo, Murcia (Spain); Lepp, Nicholas; Dickinson, Nicholas [Faculty of Science, Liverpool John Moores University, Liverpool L3 3AF (United Kingdom)

    2010-01-15

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

  16. Ion Mobility Mass Spectrometry for Ion Recovery and Clean-Up of MS and MS/MS Spectra Obtained from Low Abundance Viral Samples

    Harvey, David J.; Crispin, Max; Bonomelli, Camille; Scrivens, Jim H.

    2015-07-01

    Many samples of complex mixtures of N-glycans released from small amounts of material, such as glycoproteins from viruses, present problems for mass spectrometric analysis because of the presence of contaminating material that is difficult to remove by conventional methods without involving sample loss. This study describes the use of ion mobility for extraction of glycan profiles from such samples and for obtaining clean CID spectra when targeted m/z values capture additional ions from those of the target compound. N-glycans were released enzymatically from within SDS-PAGE gels, from the representative recombinant glycoprotein, gp120 of the human immunodeficiency virus, and examined by direct infusion electrospray in negative mode followed by ion mobility with a Waters Synapt G2 mass spectrometer (Waters MS-Technologies, Manchester, UK). Clean profiles of singly, doubly, and triply charged N-glycans were obtained from samples in cases where the raw electrospray spectra displayed only a few glycan ions as the result of low sample concentration or the presence of contamination. Ion mobility also enabled uncontaminated CID spectra to be obtained from glycans when their molecular ions displayed coincidence with ions from fragments or multiply charged ions with similar m/z values. This technique proved to be invaluable for removing extraneous ions from many CID spectra. The presence of such ions often produces spectra that are difficult to interpret. Most CID spectra, even those from abundant glycan constituents, benefited from such clean-up, showing that the extra dimension provided by ion mobility was invaluable for studies of this type.

  17. Portable Solid Phase Micro-Extraction Coupled with Ion Mobility Spectrometry System for On-Site Analysis of Chemical Warfare Agents and Simulants in Water Samples

    Liu Yang

    2014-11-01

    Full Text Available On-site analysis is an efficient approach to facilitate analysis at the location of the system under investigation as it can result in more accurate, more precise and quickly available analytical data. In our work, a novel self-made thermal desorption based interface was fabricated to couple solid-phase microextraction with ion mobility spectrometry for on-site water analysis. The portable interface can be connected with the front-end of an ion mobility spectrometer directly without other modifications. The analytical performance was evaluated via the extraction of chemical warfare agents and simulants in water samples. Several parameters including ionic strength and extraction time have been investigated in detail. The application of the developed method afforded satisfactory recoveries ranging from 72.9% to 114.4% when applied to the analysis of real water samples.

  18. Portable solid phase micro-extraction coupled with ion mobility spectrometry system for on-site analysis of chemical warfare agents and simulants in water samples.

    Yang, Liu; Han, Qiang; Cao, Shuya; Yang, Jie; Yang, Junchao; Ding, Mingyu

    2014-01-01

    On-site analysis is an efficient approach to facilitate analysis at the location of the system under investigation as it can result in more accurate, more precise and quickly available analytical data. In our work, a novel self-made thermal desorption based interface was fabricated to couple solid-phase microextraction with ion mobility spectrometry for on-site water analysis. The portable interface can be connected with the front-end of an ion mobility spectrometer directly without other modifications. The analytical performance was evaluated via the extraction of chemical warfare agents and simulants in water samples. Several parameters including ionic strength and extraction time have been investigated in detail. The application of the developed method afforded satisfactory recoveries ranging from 72.9% to 114.4% when applied to the analysis of real water samples. PMID:25384006

  19. A Survey-Reseach on English Majors' Self-directed Reading%英语专业学生自主阅读现状调查研究

    汪李娟

    2011-01-01

    英语专业学生的自主阅读能力是其学习是否成功的重要因素,却也是教师教学的盲点。针对此情况,本研究对某高校英语专业学生进行了一次问卷调查,旨在了解学生自主阅读的情况,发现存在的问题,并对教学有所启示。%The self-directed reading ability of English majors is an important factor for their language learning.However,many language teachers fail to pay atttention to students' after-class reading.Therefore,this reseach is based on a survey of students' self-directed reading,with the aim to know better the status quo of students' reading,to disclose the problems and to benefit teaching.

  20. Influence of sample and mobile phase pH on HPLC-DAD-MS analysis of anthocyanins and other phenolic compounds in wine

    Ivanova, Violeta; Meudec, Emmanuelle; Souquet, Jean-Marc; Stefova, Marina; Cheynier, Veronique

    2010-01-01

    In this study, the influence of pH of the wine sample (pH 1.2 and 3.3) and of the HPLC mobile phase (1 and 2 % formic acid in the solvent) on anthocyanin and phenolic acid analysis was explored. Wine samples acidified at pH 1.2 were analyzed immediately, after 30 min, 2h and 3.5h, in order to check if any degradation of phenolic compounds occurred during the storage. Maximum response of the flavylium cation of peonidin-3-glucoside (at 520 nm), statistically significant (p < 0.001), was observ...

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

    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 234U/238U activity ratios close to equilibrium and activity concentrations of 210Po < 0.03 mBq/g. Leaching experiments performed with sulfuric acid media (0.1 and 0.01 M), and contact times between the solid and solution for 24 h were conducted to quantify the amount of U-isotopes and 210Po 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 210Po 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%

  2. Objective data on DNA success rates can aid the selection process of crime samples for analysis by rapid mobile DNA technologies.

    Mapes, A A; Kloosterman, A D; Poot, C J de; van Marion, V

    2016-07-01

    Mobile Rapid-DNA devices have recently become available on the market. These devices can perform DNA analyses within 90min with an easy 'sample in-answer out' system, with the option of performing comparisons with a DNA database or reference profile. However, these fast mobile systems cannot yet compete with the sensitivity of the standard laboratory analysis. For the future this implies that Scene of Crime Officers (SoCOs) need to decide on whether to analyse a crime sample with a Rapid-DNA device and to get results within 2h or to secure and analyse the sample at the laboratory with a much longer throughput time but with higher sensitivity. This study provides SoCOs with evidence-based information on DNA success rates, which can improve their decisions at the crime scene on whether or not to use a Rapid-DNA device. Crime samples with a high success rate in the laboratory will also have the highest potential for Rapid-DNA analysis. These include samples from e.g. headwear, cigarette ends, articles of clothing, bloodstains, and drinking items. PMID:27015156

  3. Bayesian prediction and adaptive sampling algorithms for mobile sensor networks online environmental field reconstruction in space and time

    Xu, Yunfei; Dass, Sarat; Maiti, Tapabrata

    2016-01-01

    This brief introduces a class of problems and models for the prediction of the scalar field of interest from noisy observations collected by mobile sensor networks. It also introduces the problem of optimal coordination of robotic sensors to maximize the prediction quality subject to communication and mobility constraints either in a centralized or distributed manner. To solve such problems, fully Bayesian approaches are adopted, allowing various sources of uncertainties to be integrated into an inferential framework effectively capturing all aspects of variability involved. The fully Bayesian approach also allows the most appropriate values for additional model parameters to be selected automatically by data, and the optimal inference and prediction for the underlying scalar field to be achieved. In particular, spatio-temporal Gaussian process regression is formulated for robotic sensors to fuse multifactorial effects of observations, measurement noise, and prior distributions for obtaining the predictive di...

  4. A rapid and non-invasive method to determine toxic levels of alcohols and γ-hydroxybutyric acid in saliva samples by gas chromatography-differential mobility spectrometry.

    Criado-García, L; Ruszkiewicz, D M; Eiceman, G A; Thomas, C L P

    2016-03-01

    A polydimethylsiloxane oral sampler was used to extract methanol, ethanol, ethylene glycol, 1,3-propandiol and γ-hydroxybutyric acid from samples of human saliva obtained using a passive drool approach. The extracted compounds were recovered by thermal desorption, isolated by gas chromatography and detected with differential mobility spectrometry, operating with a programmed dispersion field. Complex signal behaviours were also observed that were consistent with hitherto unobserved fragmentation behaviours in differential mobility spectrometry. These yielded high-mobility fragments obscured within the envelope of the water-based reactant ion peak. Further, compensation field maxima shifts were also observed which were attributable to transport gas modification phenomena. Nevertheless, the responses obtained indicated that in vivo saliva sampling with thermal desorption gas chromatography may be used to provide a semi-quantitative diagnostic screen over the toxicity threshold concentration ranges of 100 mg dm(-3) to 3 g dm(-3). A candidate method suitable for use in low resource settings for the non-invasive screening of patients intoxicated by alcohols and volatile sedatives has been demonstrated. PMID:26744364

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

    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

  6. Carbon Nanotube Emissions from Arc Discharge Production: Classification of Particle Types with Electron Microscopy and Comparison with Direct Reading Techniques

    Ludvigsson, Linus; Isaxon, Christina; Nilsson, Patrik; Tinnerberg, Håkan; Messing, Maria; Rissler, Jenny; Skaug, Vidar; Gudmundsson, Anders; Bohgard, Mats; Hedmer, Maria; Pagels, Joakim

    2016-01-01

    Introduction: An increased production and use of carbon nanotubes (CNTs) is occurring worldwide. In parallel, a growing concern is emerging on the adverse effects the unintentional inhalation of CNTs can have on humans. There is currently a debate regarding which exposure metrics and measurement strategies are the most relevant to investigate workplace exposures to CNTs. This study investigated workplace CNT emissions using a combination of time-integrated filter sampling for scanning electro...

  7. Application of plume analysis to build land use regression models from mobile sampling to improve model transferability

    Tan, Yi; Dallmann, Timothy R.; Robinson, Allen L.; Presto, Albert A.

    2016-06-01

    Mobile monitoring of traffic-related air pollutants was conducted in Pittsburgh, PA. The data show substantial spatial variability of particle-bound polycyclic aromatic hydrocarbons (PB-PAH) and black carbon (BC). This variability is driven in large part by pollutant plumes from high emitting vehicles (HEVs). These plumes contribute a disproportionately large fraction of the near-road exposures of PB-PAH and BC. We developed novel statistical models to describe the spatial patterns of PB-PAH and BC exposures. The models consist of two layers: a plume layer to describe the contributions of high emitting vehicles using a near-roadway kernel, and an urban-background layer that predicts the spatial pattern of other sources using land use regression. This approach leverages unique information content of highly time resolved mobile monitoring data and provides insight into source contributions. The two-layer model describes 76% of observed PB-PAH variation and 61% of BC variation. On average, HEVs contribute at least 32% of outdoor PB-PAH and 14% of BC. The transferability of the models was examined using measurements from 36 hold-out validation sites. The plume layer performed well at validation sites, but the background layer showed little transferability due to the large difference in land use between the city and outer suburbs.

  8. Staging Mobilities / Designing Mobilities

    Jensen, Ole B.

    2015-01-01

    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...

  9. Polypyrrole nanowire as an excellent solid phase microextraction fiber for bisphenol A analysis in food samples followed by ion mobility spectrometry.

    Kamalabadi, Mahdie; Mohammadi, Abdorreza; Alizadeh, Naader

    2016-08-15

    A polypyrrole nanowire coated fiber was prepared and used in head-space solid phase microextraction coupled with ion mobility spectrometry (HS-SPME-IMS) to the analysis of bisphenol A (BPA) in canned food samples, for the first time. This fiber was synthesized by electrochemical oxidation of the monomer in aqueous solution. The fiber characterization by scanning electron microscopy (SEM) revealed that the new fiber exhibited two-dimensional structures with a nanowire morphology. The effects of important extraction parameters on the efficiency of HS-SPME were investigated and optimized. Under the optimum conditions, the linearity of 10-150ngg(-1) and limit of detection (based on S/N=3) of 1ngg(-1) were obtained in BPA analysis. The repeatability (n=5) expressed as the relative standard deviation (RSD%) was 5.8%. At the end, the proposed method was successfully applied to determine BPA in various canned food samples (peas, corns, beans). Relative recoveries were obtained 93-96%. Method validation was conducted by comparing our results with those obtained through HPLC with fluorescence detection (FLD). Compatible results indicate that the proposed method can be successfully used in BPA analysis. This method is simple and cheaper than chromatographic methods, with no need of extra organic solvent consumption and derivatization prior to sample introduction. PMID:27260447

  10. High Sensitivity Method to Estimate Distribution of Hyaluronan Molecular Sizes in Small Biological Samples Using Gas-Phase Electrophoretic Mobility Molecular Analysis

    Lan Do

    2015-01-01

    Full Text Available Hyaluronan is a negatively charged polydisperse polysaccharide where both its size and tissue concentration play an important role in many physiological and pathological processes. The various functions of hyaluronan depend on its molecular size. Up to now, it has been difficult to study the role of hyaluronan in diseases with pathological changes in the extracellular matrix where availability is low or tissue samples are small. Difficulty to obtain large enough biopsies from human diseased tissue or tissue from animal models has also restricted the study of hyaluronan. In this paper, we demonstrate that gas-phase electrophoretic molecular mobility analyzer (GEMMA can be used to estimate the distribution of hyaluronan molecular sizes in biological samples with a limited amount of hyaluronan. The low detection level of the GEMMA method allows for estimation of hyaluronan molecular sizes from different parts of small organs. Hence, the GEMMA method opens opportunity to attain a profile over the distribution of hyaluronan molecular sizes and estimate changes caused by disease or experimental conditions that has not been possible to obtain before.

  11. Highly sensitive tITP-CZE determination of l-histidine and creatinine in human blood plasma using field-amplified sample injection with mobility-boost effect.

    Hattori, Takanari; Fukushi, Keiichi

    2016-01-01

    2D computer simulation revealed that amino acids and weak electrolytes were cationized because of the migration of counter-ion from a BGE zone to a sample zone, which encouraged electrokinetic injection (EKI) of these analytes (by the mobility-boost (MB) effect). To investigate the effects of kinds and concentrations of counter-ions on the MB effect and the analyte amount injected into the capillary, experiments, and 1D computer simulations were performed. When acetate was used as the counter-ion, the LODs (S/N = 3) of l-histidine and creatinine, respectively, reached 0.10 and 0.25 nM because of the concentration effect by transient ITP (tITP). The concentrations of l-histidine and creatinine in human blood plasma obtained using the proposed method were agreed with those obtained using the conventional methods. The proposed method can be applied to the analysis of amino acids and weak bases that have similar pI and pKa to l-histidine and creatinine. PMID:26454141

  12. A Study of the Macrozooplankton within the Samples Taken at theMobile Site from November 1977 through November 1978:A Data Report of theLawrence Berkeley Laboratory

    Steen, John; Gunter, Gordon

    1981-11-01

    This report brings together the results of a re-examination of zooplankton samples from the Mobile OTEC site (29{sup o}N-88{sup o}W) in the northern Gulf of Mexico for macrozooplankton larger than 15 mm. Five cruises were made to the Mobile OTEC site aboard the R/V Virginia Key. Cruise dates were: 17-20 November 1977; 27 February-2 March 1978; 9-17 June 1978; 15-24 August 1978; and 21 October-3 November 1978.

  13. Mobile Learning Using Mobile Phones

    Vicente, Paula

    2013-01-01

    The participation in mobile learning programs is conditioned by having/using mobile communication technology. Those who do not have or use such technology cannot participate in mobile learning programs. This study evaluates who are the most likely participants of mobile learning programs by examining the demographic profile and mobile phone usage…

  14. Mobile Lexicography

    Køhler Simonsen, Henrik

    2015-01-01

    Mobile phones are ubiquitous and have completely transformed the way we live, work, learn and conduct our everyday activities. Mobile phones have also changed the way users access lexicographic data. In fact, it can be argued that mobile phones and lexicography are not yet compatible. Modern users...... are already mobile – but lexicography is not yet fully ready for the mobile challenge, mobile users and mobile user situations. The article is based on empirical data from two surveys comprising 10 medical doctors, who were asked to look up five medical substances with the medical dictionary app...... mobile lexicography....

  15. 直读光谱法测定超低碳钢板的碳含量%Determination of Carbon in Steel Sheets of Ultra-Low Carbon Content by Direct-Reading Atomic Emission Spectrography

    李吉; 牟正明; 包雪鹏; 孙国燕

    2014-01-01

    用一系列含碳量(wC )在0.002%~0.03%范围内的标准物质在直读光谱仪上按选定的工作条件测定各样品的碳量。根据所得每一样品的一系列测定值以及各项统计量,分析并判断了直读光谱法在测定钢板中超低碳含量的准确度和精密度水平。试验结果表明:①测定结果的准确度受样品的基体背景及仪器标准化条件的影响,引入了系统误差;据此建议选择与待测样品基体匹配的标准物质校准仪器并选择合理的仪器标准化条件。②在上述含碳量范围内,所得测定值的S%值(包括10次测定和5次测定的计算值)差异较小,其极值之差为3×10-4%,但对相对标准偏差有显著影响,其最低值在2%左右,而最高值达21%。③在所选定的测定条件下,对碳含量在10-5数量级的样品而言,准确度或系统误差的波动范围在±1×10-4%范围内。%A set of CRM′s with values of wC% ranged from 0.002% to 0.03% was analyzed for their carbon contents with a direct reading AES under the specified working conditions.A statistical study was made based on data obtained,i.e.,the values ofwC% of each of the CRM′s and their statistics and levels of accuracy and precision of the method for determination of ultra-low carbon in steel sheets were assessed.It was shown that:① accuracy of the analytical results was affected by the matrix background of individual sample and standardization condition of the instrument,it is advised to choose CRM′s having similar composition with the sample for calibration of instrument and rational condition of standardization;② in the range of carbon content concerned,only small differences among values of S% (either for n=5 or 10)were obtained with difference of extreme values of 3×10-4 %,but significant differences of values of RSD% were observed with min.and max.values of 2% and 21% respectively;and ③ range of fluctuation of systematic

  16. 直读光谱法测定超低碳钢板的碳含量%Determination of Carbon in Steel Sheets of Ultra-Low Carbon Content by Direct-Reading Atomic Emission Spectrography

    李吉; 牟正明; 包雪鹏; 孙国燕

    2014-01-01

    A set of CRM′s with values of wC% ranged from 0.002% to 0.03% was analyzed for their carbon contents with a direct reading AES under the specified working conditions.A statistical study was made based on data obtained,i.e.,the values ofwC% of each of the CRM′s and their statistics and levels of accuracy and precision of the method for determination of ultra-low carbon in steel sheets were assessed.It was shown that:① accuracy of the analytical results was affected by the matrix background of individual sample and standardization condition of the instrument,it is advised to choose CRM′s having similar composition with the sample for calibration of instrument and rational condition of standardization;② in the range of carbon content concerned,only small differences among values of S% (either for n=5 or 10)were obtained with difference of extreme values of 3×10-4 %,but significant differences of values of RSD% were observed with min.and max.values of 2% and 21% respectively;and ③ range of fluctuation of systematic error (or of accuracy)for determination of carbon content at the magnitude of 10-5 attained to values ranged in ±1×10-4 %.%用一系列含碳量(wC )在0.002%~0.03%范围内的标准物质在直读光谱仪上按选定的工作条件测定各样品的碳量。根据所得每一样品的一系列测定值以及各项统计量,分析并判断了直读光谱法在测定钢板中超低碳含量的准确度和精密度水平。试验结果表明:①测定结果的准确度受样品的基体背景及仪器标准化条件的影响,引入了系统误差;据此建议选择与待测样品基体匹配的标准物质校准仪器并选择合理的仪器标准化条件。②在上述含碳量范围内,所得测定值的S%值(包括10次测定和5次测定的计算值)差异较小,其极值之差为3×10-4%,但对相对标准偏差有显著影响,其最低值在2%左右,而最高值达21%。③在所选定的测

  17. Mobile units to hydro geochemistry characterization

    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

  18. Mobile Probes in Mobile Learning

    Ørngreen, Rikke; Blomhøj, Ulla; Duvaa, Uffe

    2011-01-01

    In this paper experiences from using mobile probes in educational design of a mobile learning application is presented. The probing process stems from the cultural probe method, and was influenced by qualitative interview and inquiry approaches. In the project, the mobile phone was not only acting as an agent for acquiring empirical data (as the situation in hitherto mobile probe settings) but was also the technological medium for which data should say something about (mobile learning). Conse...

  19. Mobile learning in medicine

    Serkan Güllüoüǧlu, Sabri

    2013-03-01

    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.

  20. Mobile payment

    Lerner, Thomas

    2013-01-01

    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.

  1. Skylab mobile laboratory

    Primeaux, G. R.; Larue, M. A.

    1975-01-01

    The Skylab mobile laboratory was designed to provide the capability to obtain necessary data on the Skylab crewmen 30 days before lift-off, within 1 hour after recovery, and until preflight physiological baselines were reattained. The mobile laboratory complex consisted of six laboratories that supported cardiovascular, metabolic, nutrition and endocrinology, operational medicine, blood, and microbiology experiments; a utility package; and two shipping containers. The objectives and equipment requirements of the Skylab mobile laboratory and the data acquisition systems are discussed along with processes such as permanently mounting equipment in the individual laboratories and methods of testing and transporting the units. The operational performance, in terms of amounts of data collected, and the concept of mobile laboratories for medical and scientific experiments are evaluated. The Skylab mobile laboratory succeeded in facilitating the data collection and sample preservation associated with the three Skylab manned flights.

  2. Mobile marketing

    Švarc, Ondřej

    2010-01-01

    The goal of bachelor's thesis on the theme "Mobile marketing" is to outline its development and why is this new phenomen so important for all modern companies around the world. The work is not about simple description of mobile marketing media but it vividly informs about the latest trends and news from the world of mobile apps and games. It presents the most successful mobile apps which registered more than billion downloads and from their unique characteristics it unveils great potential of...

  3. Mobile marketing

    KLEČKOVÁ, Zuzana

    2013-01-01

    The main aim of this thesis was to provide a comprehensive overview of the mobile marketing and analyze selected campaigns of Czech mobile marketing in comparison to world successful campaigns. The research contained studying of available literature about the theme to gain general knowledge about the issue. The theoretical part of the thesis contains predominantly various definitions of mobile marketing and its tools, advantages of these tools and some information about Mobile Marketing Assoc...

  4. Characterizing slab inputs in the earliest stages of subduction: Preliminary evidence from fluid-mobile element systematics for IODP Expedition 352 recovered volcanic samples

    Sanatan, Keir; Ryan, Jeffrey; Atlas, Zachary; Reagan, Mark

    2016-04-01

    IODP Expedition 352 recovered ~1.22 km of boninitic and basaltic volcanic rocks from four sites in the Izu-Bonin forearc to examine the volcanic phenomena associated with subduction initiation. While the recovered forearc basalts give little indication for the involvement of slab-derived volatiles, the extensive sequences of boninite series lavas recovered up-section show physical evidence for extensive fluid involvement (heavy vesicularity, explosive eruptive style), along with chemistries indicative of fluid-addition melting of depleted mantle sources. We are attempting to assay the makeup and likely slab provenance of these fluids via their fluid-mobile element (B, As, Cs, Sb, Pb, Li) systematics. Boron abundances measured thus far in fresh boninitic glasses recovered from Holes U1439C and U1442A range from 3-12 ppm, with B/Be and B/La ranging from 7.5-106 and 2-18.5, respectively. While the highest values are comparable to those observed in the most B-enriched Izu-bonin arc rocks, most of the data are at the low end of this range. Cs/Th and Pb/Ce ratios encompass the range of values encountered in IBM boninites in the literature, and are comparable to values for Izu arc lavas, while As/Sm ratios appear to be lower than in arc suites. Li concentrations are elevated relative to basaltic lavas, at 7-17 ppm, and Li/Yb ratios range from 8-22, a factor of four higher than the range encountered in volcanic arc suites. While fluid-mobile element systematics of Izu-Bonin volcanic arc lavas show evidence for inputs of two unique slab components with markedly different fluid-mobile element enrichments, the Izu-Bonin boninites can best be explained as simple mixtures of very depleted mantle and a single slab phase with high abundances of fluid-mobile species, along with elevated K, Ba, and other common subduction indicator species. Volcanic arc lavas globally show evidence for a fluid-mobile element enriched component that appears to be similar to serpentinite

  5. Staging Mobilities

    Jensen, Ole B.

    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...

  6. Mobile Probes in Mobile Learning

    Ørngreen, Rikke; Blomhøj, Ulla; Duvaa, Uffe

    In this paper experiences from using mobile probes in educational design of a mobile learning application is presented. The probing process stems from the cultural probe method, and was influenced by qualitative interview and inquiry approaches. In the project, the mobile phone was not only acting...... as an agent for acquiring empirical data (as the situation in hitherto mobile probe settings) but was also the technological medium for which data should say something about (mobile learning). Consequently, not only the content of the data but also the ways in which data was delivered and handled......, provided a valuable dimension for investigating mobile use. The data was collected at the same time as design activities took place and the collective data was analysed based on user experience goals and cognitive processes from interaction design and mobile learning. The mobile probe increased the...

  7. Job mobility in Ireland

    Bergin, Ms. Adel

    2009-01-01

    This paper investigates the factors that determine job-to-job mobility in Ireland over the period 1995 to 2001. It finds that labour market experience, working in the public sector, whether a person is overskilled, the sector they work in and their occupation are important determinants of voluntary job change. The paper finds the rate of voluntary job mobility in Ireland trebled over the period 1995 to 2000. The sample is divided into two time periods and a decomposition technique is applied ...

  8. How can wireless, mobile data acquisition be used for taking part of the lab to the sample, and how can it join the internet of things?

    Trzcinski, Peter; Karanassios, Vassili

    2016-05-01

    During the last several years, the world has moved from wired communications (e.g., a wired ethernet, wired telephone) to wireless communications (e.g., cell phones, smart phones, tablets). However, data acquisition has lagged behind and for the most part, data in laboratory settings are still acquired using wired communications (or even plug in boards). In this paper, approaches that can be used for wireless data acquisition are briefly discussed using a conceptual model of a future, mobile, portable micro-instrument as an example. In addition, past, present and near-future generations of communications are discussed; processors, operating systems and benchmarks are reviewed; networks that may be used for data acquisition in the field are examined; and, the possibility of connecting sensor or micro-instrument networks to the internet of things is postulated.

  9. Mobility Work

    Bardram, Jakob Eyvind; Bossen, Claus

    2005-01-01

    coordination necessary in cooperative work, but focuses, we argue, mainly on the temporal aspects of cooperative work. As a supplement, the concept of mobility work focuses on the spatial aspects of cooperative work. Whereas actors seek to diminish the amount of articulation work needed in collaboration by......We posit the concept of Mobility Work to describe efforts of moving about people and things as part of accomplishing tasks. Mobility work can be seen as a spatial parallel to the concept of articulation work proposed by the sociologist Anselm Strauss. Articulation work describes efforts of...... constructing Standard Operation Procedures (SOPs), actors minimise mobility work by constructing Standard Operation Configurations (SOCs). We apply the concept of mobility work to the ethnography of hospital work, and argue that mobility arises because of the need to get access to people, places, knowledge and...

  10. Mobile Semiotics

    Jensen, Ole B.

    2013-01-01

    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...

  11. Mobil marketing

    Engelová, Kateřina

    2006-01-01

    Mobil marketing - reklama a podpora prodeje prostřednictvím mobilních telefonů. Technologické a kulturní předpoklady vzniku tohoto odvětví. Mobil marketing a marketingový mix, možnosti synergie. Nástroje mobil marketingu - reklamní SMS a MMS, lokační služby, soutěže, ankety a hlasování, věrnostní systémy, mobilní obsah. Subjekty mobil marketingu. M-komerce. Využití pro podnikové aplikace.

  12. Mobile Clouds

    Fitzek, Frank; Katz, Marcos

    A mobile cloud is a cooperative arrangement of dynamically connected communication nodes sharing opportunistic resources. In this book, authors provide a comprehensive and motivating overview of this rapidly emerging technology. The book explores how distributed resources can be shared by mobile...... examples of mobile clouds applications, based on both existing commercial initiatives as well as proof-of-concept test-beds. Visions and prospects are also discussed, paving the way for further development. As mobile networks and social networks become more and more reliant on each other, the concept of...

  13. Mobile Semiotics - signs and mobilities

    Jensen, Ole B.

    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...

  14. Mobile phones and mobile communication

    Ling, Richard; Donner, Jonathan

    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...

  15. Born In Bradford Mobile Application

    Lee, Stella; Walda, Martin; Vasiliki, Delimpasi

    2015-01-01

    The Born In Bradford mobile application is an Android mobile application and a working prototype that enables interaction with a sample cohort of the Born in Bradford study. It provides an interface and visualization for several surveys participated in by mothers and their children. This data is stored in the Born In Bradford database. A subset of this data is provided for mothers and children. The mobile application provides a way to engage the mothers and promote their consistency in partic...

  16. Mobile phone

    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)

  17. Restricted Mobilities

    Nielsen, Mette; Lassen, Claus

    2012-01-01

    exclusion and stratification mechanisms. In conclusion the article therefore suggests that future urban research and planning also needs a mobile understanding of spaces in the cities and how different mobility systems play an important role to sustain the exclusiveness that often characterises the private......Privatisation of public spaces in the contemporary city has increased during the last decades but only few studies have approached this field from a mobility perspective. Therefore the article seeks to rectify this by exploring two Australian examples of private spaces in the city; gated...... communities and shopping centres through mobility lenses. The article shows how different mobility systems enable and restrict the public access to private-public spaces, and it points out that proprietary communities create an unequal potential for human movement and access in the city. The main argument in...

  18. Mobilities Design

    Jensen, Ole B.; Lanng, Ditte Bendix; Wind, Simon

    2016-01-01

    In this paper, we identify the nexus between design (architecture, urban design, service design, etc.) and mobilities as a new and emerging research field. In this paper, we apply a “situational mobilities” perspective and take point of departure in the pragmatist question: “What design decisions...... and interventions affords this particular mobile situation?” The paper presents the contours of an emerging research agenda within mobilities research. The advent of “mobilities design” as an emerging research field points towards a critical interest in the material as well as practical consequences...... well as policy-making. The paper proposes that increased understanding of the material affordances facilitated through design provides important insight to planning and policymaking that at times might be in risk of becoming too detached from the everyday life of the mobile subject within contemporary...

  19. Intensive mobilities:

    Vannini, Phillip; Bissell, David; Jensen, Ole B.

    This paper explores the intensities of long distance commuting journeys as a way of exploring how bodily sensibilities are being changed by the mobilities that they undertake. The context of this paper is that many people are travelling further to work than ever before owing to a variety of factors...... which relate to transport, housing and employment. Yet we argue that the experiential dimensions of long distance mobilities have not received the attention that they deserve within geographical research on mobilities. This paper combines ideas from mobilities research and contemporary social theory...... with fieldwork conducted in Canada, Denmark and Australia to develop our understanding of the experiential politics of long distance workers. Rather than focusing on the extensive dimensions of mobilities that are implicated in patterns and trends, our paper turns to the intensive dimensions of this...

  20. Designing Mobilities

    Jensen, Ole B.

    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...... 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...

  1. Coupling of multi-walled carbon nanotubes/polydimethylsiloxane coated stir bar sorptive extraction with pulse glow discharge-ion mobility spectrometry for analysis of triazine herbicides in water and soil samples.

    Zou, Nan; Yuan, Chunhao; Liu, Shaowen; Han, Yongtao; Li, Yanjie; Zhang, Jialei; Xu, Xiang; Li, Xuesheng; Pan, Canping

    2016-07-29

    An analytical method based on stir bar sorptive extraction (SBSE) coupled with pulse glow discharge-ion mobility spectrometry (PGD-IMS) was developed for analysis of three triazine pesticide residues in water and soil samples. An injection port with sealing device and stir bars hold device were designed and constructed to directly position the SBSE fiber including the extracted samples into the heating device, making desorption and detection of analytes proceeded simultaneously. The extraction conditions such as SBSE solid phase material, extraction time, extraction temperature, pH value and salt concentration were optimized. Mixture of MWCNTs-COOH and PDMS were shown to be effective in enriching the triazines. The LODs and LOQs of three triazines were found to be 0.006-0.015μgkg(-1) and 0.02-0.05μgkg(-1), and the linear range was 0.05-10μgL(-1) with determination coefficients from 0.9987 to 0.9993. The SBSE-PGD-IMS method was environmentally friendly without organic solvent consumption in the entire experimental procedures, and it was demonstrated to be a commendable rapid analysis technique for analysis of triazine pesticide residues in environmental samples on site. The proposed method was applied for the analysis of real ground water, surface water and soil samples. PMID:27371024

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

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

    2011-12-01

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

  3. Portable computing for taking part of the lab to the sample types of applications. From hand held personal digital assistants to smart phones for mobile spectrometry

    Weagant, Scott; Karanassios, Vassili

    2015-06-01

    The use of portable hand held computing devices for the acquisition of spectrochemical data is briefly discussed using examples from the author's laboratory. Several network topologies are evaluated. At present, one topology that involves a portable computing device for data acquisition and spectrometer control and that has wireless access to the internet at one end and communicates with a smart phone at the other end appears to be better suited for "taking part of the lab to the sample" types of applications. Thus, spectrometric data can be accessed from anywhere in the world.

  4. Going Mobile?

    Tallon, Loic; Froes, Isabel Cristina G.

    2011-01-01

    If the future is mobile, how is the museum community developing within that future? What are the challenges museums face within it? In which directions should we be seeking to evolve our collective knowledge share? It was to gain observations on questions such as these that the 2011 Museums & Mob...... & Mobile survey was developed: 660 museum professionals responded. In this paper the authors highlight nine survey observations that they believe are important to the museum community’s increased understanding of and continued progress within mobile interpretation....

  5. Mobile museology

    Baggesen, Rikke Haller

    selection of blog posts from the research project blog with three research articles: ‘Museum metamorphosis à la mode’, proposing a fashion perspective on ongoing museum developments; ‘Augmenting the agora: media and civic engagement in museums’, questioning the idea of social media holding a vital potential...... fashionable, the ephemeral, and towards an (ideal) state of change and changeability. This orientation is characterised with the triplet concepts of mobile, mobility, and mobilisation, as related to mobile media and movability; to ‘trans - museal’ mediation; and to the mobilisation of collections, audiences...

  6. Mobile Lexicography

    Køhler Simonsen, Henrik

    2014-01-01

    Users are already mobile, but the question is to which extent knowledge-based dictionary apps are designed for the mobile user situation. The objective of this article is to analyse the characteristics of the mobile user situation and to look further into the stationary user situation and the...... looked up the same five medical terms while walking around a hospital bed. The data collected during the two tests include external and internal recordings, think-aloud data and interview data. The data were analysed by means of the information scientific star model, cf. (Simonsen 2011:565), and it was...

  7. Mobile Platforms and Development Environments

    Helal, Sumi; Li, Wengdong

    2012-01-01

    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

  8. Role of natural organic matter on iodine and (239)(,240)Pu distribution and mobility in environmental samples from the northwestern Fukushima Prefecture, Japan.

    Xu, Chen; Zhang, Saijin; Sugiyama, Yuko; Ohte, Nobuhito; Ho, Yi-Fang; Fujitake, Nobuhide; Kaplan, Daniel I; Yeager, Chris M; Schwehr, Kathleen; Santschi, Peter H

    2016-03-01

    In order to assess how environmental factors are affecting the distribution and migration of radioiodine and plutonium that were emitted from the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident, we quantified iodine and (239,240)Pu concentration changes in soil samples with different land uses (urban, paddy, deciduous forest and coniferous forest), as well as iodine speciation in surface water and rainwater. Sampling locations were 53-63 km northwest of the FDNPP within a 75-km radius, in close proximity of each other. A ranking of the land uses by their surface soil (forest > deciduous forest > urban > paddy, and (239,240)Pu concentrations ranked as deciduous forest > coniferous forest > paddy ≥ urban. Both were quite distinct from that of (134)Cs and (137)Cs: urban > coniferous forest > deciduous forest > paddy, indicating differences in their sources, deposition phases, and biogeochemical behavior in these soil systems. Although stable (127)I might not have fully equilibrated with Fukushima-derived (129)I, it likely still works as a proxy for the long-term fate of (129)I. Surficial soil (127)I content was well correlated to soil organic matter (SOM) content, regardless of land use type, suggesting that SOM might be an important factor affecting iodine biogeochemistry. Other soil chemical properties, such as Eh and pH, had strong correlations to soil (127)I content, but only within a given land use (e.g., within urban soils). Organic carbon (OC) concentrations and Eh were positively, and pH was negatively correlated to (127)I concentrations in surface water and rain samples. It is also noticeable that (127)I in the wet deposition was concentrated in both the deciduous and coniferous forest throughfall and stemfall water, respectively, comparing to the bulk rainwater. Further, both forest throughfall and stemflow water consisted exclusively of organo-iodine, suggesting all inorganic iodine in the original bulk deposition (∼ 28.6% of total iodine) have

  9. Mobile Commerce

    Maria Cristina Enache

    2016-01-01

    Mobile commerce, or m-commerce, refers to the use of wireless digital devices to enable transactions on the Web. Described more fully in Chapter 3, m-commerce involves the use of wireless networks to connect cell phones, handheld devices such Blackberries, and personal computers to the Web. Once connected, mobile consumers can conduct transactions, including stock trades, in-store price comparisons, banking, travel reservations, and more.

  10. Correlation ion mobility spectroscopy

    Pfeifer, Kent B.; Rohde, Steven B.

    2008-08-26

    Correlation ion mobility spectrometry (CIMS) uses gating modulation and correlation signal processing to improve IMS instrument performance. Closely spaced ion peaks can be resolved by adding discriminating codes to the gate and matched filtering for the received ion current signal, thereby improving sensitivity and resolution of an ion mobility spectrometer. CIMS can be used to improve the signal-to-noise ratio even for transient chemical samples. CIMS is especially advantageous for small geometry IMS drift tubes that can otherwise have poor resolution due to their small size.

  11. Graphene mobility mapping

    Buron, Jonas Christian Due; Pizzocchero, Filippo; Jepsen, Peter Uhd;

    2015-01-01

    Carrier mobility and chemical doping level are essential figures of merit for graphene, and large-scale characterization of these properties and their uniformity is a prerequisite for commercialization of graphene for electronics and electrodes. However, existing mapping techniques cannot directly...... assess these vital parameters in a non-destructive way. By deconvoluting carrier mobility and density from non-contact terahertz spectroscopic measurements of conductance in graphene samples with terahertz-transparent backgates, we are able to present maps of the spatial variation of both quantities over...... graphene indicates dominance by charged scatterers. Unexpectedly, significant variations in mobility rather than doping are the cause of large conductance inhomogeneities, highlighting the importance of statistical approaches when assessing large-area graphene transport properties....

  12. Designing Mobilities

    Jensen, Ole B.

    practices. Everyday life mobilities take place in complex socio-technical systems where the over-layering of hard infrastructures, with design codes and protocols shapes the ‘mobile biotopes’ of the everyday life. By exploring the very tangible and concrete designs of for example everyday life transit...... spaces, mobilitiy technologies or urban sites of movement we get much closer to understanding the meaning of mobilities to social interaction and culture. The cases are still representing work-in-progress but will be reported in the book ‘Designing Mobilites’ (Jensen 2013b) and will cover the four cases...... of: motorway ecologies, bicycle systems design, urban shopping malls and a train transit hub....

  13. Mobile Marketing

    Monika Březinová; Michael Rost

    2009-01-01

    This article deals with one of the modern trends in marketing communication, which is mobile marketing. Towards the end of 2008, several projects which use mobile phones for target marketing communication were launched. Commercial SMS´s are sent on the base of agreement or registration of the consumers on special websites, for example hellomobil.cz. The benefit for the consumers is the bonus which can have more forms - not only sending money to the account, free SMS´s/MMS´s and minutes but al...

  14. Mobile Applications

    Semerád, David

    2011-01-01

    The mobile app market is one of the fastest growing in the world. The Apple company has become the most valuated company in the world, mainly due to its App Store. Considering the fact, that nearly all the trends from abroad are soon or later adapted in the Czech Republic, there is quite a big potential value for all the projects on mobile apps including the local market specifics. The subject of this thesis is to consider whether such an app could be successful in such an old school environm...

  15. Inferring Human Mobility from Sparse Low Accuracy Mobile Sensing Data

    Cuttone, Andrea; Jørgensen, Sune Lehmann; Larsen, Jakob Eg

    2014-01-01

    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....

  16. Mobility Challenges

    Jensen, Ole B.; Lassen, Claus

    2011-01-01

    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 th...

  17. Sustainable Mobility

    Kjærulff, Aslak Aamot

    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 mob...

  18. Mobil nationalisme

    Koefoed, Lasse Martin

    2006-01-01

    , varer, mennesker og kapital men derimod en integreret del af disse tendenser. Gennem begrebet mobil nationalisme argumenteres der for en analytisk optik, hvor nationalisme forstås som en proces hvorigennem skiftende relationer og bevægelser mellem forskellige socio-rumlige skalaer som kroppen...

  19. Mobile-to-mobile wireless channels

    Zajic, Alenka

    2013-01-01

    Present-day mobile communications systems can be classified as fixed-to-mobile because they allow mobility on only one end (e.g. the mobile phone to a fixed mobile operator's cell tower). In answer to the consumer demand for better coverage and quality of service, emerging mobile-to-mobile (M-to-M) communications systems allow mobile users or vehicles to directly communicate with each other. This practical book provides a detailed introduction to state-of-the-art M-to-M wireless propagation. Moreover, the book offers professionals guidance for rapid implementation of these communications syste

  20. Mobile Customer Relationship Management and Mobile Security

    Sanayei, Ali; Mirzaei, Abas

    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.

  1. Hall mobility in multicrystalline silicon

    Schindler, F.; Geilker, J.; Kwapil, W.; Warta, W.; Schubert, M. C.

    2011-08-01

    Knowledge of the carrier mobility in silicon is of utmost importance for photovoltaic applications, as it directly influences the diffusion length and thereby the cell efficiency. Moreover, its value is needed for a correct quantitative evaluation of a variety of lifetime measurements. However, models that describe the carrier mobility in silicon are based on theoretical calculations or fits to experimental data in monocrystalline silicon. Multicrystalline (mc) silicon features crystal defects such as dislocations and grain boundaries, with the latter possibly leading to potential barriers through the trapping of charge carriers and thereby influencing the mobility, as shown, for example, by Maruska et al. [Appl. Phys. Lett. 36, 381 (1980)]. To quantify the mobilities in multicrystalline silicon, we performed Hall measurements in p-type mc-Si samples of various resistivities and different crystal structures and compared the data to majority carrier Hall mobilities in p-type monocrystalline floatzone (FZ) silicon. For lack of a model that provides reliable values of the Hall mobility in silicon, an empirical fit similar to existing models for conductivity mobilities is proposed based on Hall measurements of monocrystalline p-type FZ silicon. By comparing the measured Hall mobilities obtained from mc silicon with the corresponding Hall mobilities in monocrystalline silicon of the same resistivity, we found that the mobility reduction due to the presence of crystal defects in mc-Si ranges between 0% and 5% only. Mobility decreases of up to 30% as reported by Peter et al. [Proceedings of the 23rd European Photovoltaic Solar Energy Conference, Valencia, Spain, 1-5 September 2008], or even of a factor of 2 to 3 as detected by Palais et al. [Mater. Sci. Eng. B 102, 184 (2003)], in multicrystalline silicon were not observed.

  2. Mobile Usability

    Aryana, Bijan; Clemmensen, Torkil

    2013-01-01

    In this article, a country specific comparative mobile usability study is presented, using Iran and Turkey as the two chosen emerging/emergent nation exemplars of smartphone usage and adoption. In a focus group study, three mobile applications were selected by first-time users of smartphones....... In both countries, the music player application was tested, wherein common patterns of accessing and sorting songs emerged. Whereas the Iranian users appeared to be more interested in social networking via use of an SMS service, the Turkish users tended to prefer to apply hierarchies to their own daily...... personal contacts. The results and analysis establish the existence of country specific issues and concerns, as well as reveal generic usability issues. The article concludes that the source of these issues is most likely due to a combination of certain contextual features endemic to both Iran and Turkey...

  3. Mobile Misfortune

    Vigh, Henrik Erdman

    2015-01-01

    termination of the mobility it enables. This article, thus, looks at the motives and manners in which young men in Bissau become caught up in transnational flows of cocaine. It shows how motion is emotively anchored and affectively bound: tied to and directed toward a feeling of worth and realisation of being......, and how migration from the global South often has negative potentiality as an end-point via the ascription of illegality and condition of deportability that shade it....

  4. The African Mobile Story

    This book identifies the factors that has enabled the growth of mobile telephony in Africa. The book covers the regulatory factors, the development and usage of mobile application, mobile security and sustainable power source for mobile networks......This book identifies the factors that has enabled the growth of mobile telephony in Africa. The book covers the regulatory factors, the development and usage of mobile application, mobile security and sustainable power source for mobile networks...

  5. Mobile Payments : Comparison of Mobile Wallet Concepts

    Narayan, Srikant

    2013-01-01

    Mobile payments are an emerging trend and an alternative to traditional payment methods. Mobile payments involve the usage of the mobile phone to handle credit transfers during purchase of goods and peer to peer money transfers referred to as mobile wallet service, instead of depending on bank cards and cash. In this scenario, while the mobile wallet industry still being in its infancy there exist a few drivers of mobile wallet solutions aiming to create a de-facto standard in the mobile mark...

  6. Mobile Marketing

    Luengo Cascudo, Alberto

    2010-01-01

    El principal objetivo de este proyecto es explicar y entender la importancia del Mobile Marketing como nueva herramienta de negocio en el Marketing empresarial. Para ello, el primer objetivo es entender los dos factores que para mí son la clave de su importancia: la evolución del entorno tecnológico y el cambio en los hábitos del consumidor. Debido a la novedad de esta nueva forma de Marketing y al hecho de que está en constante definición, es básico exponer de la forma más cla...

  7. Robotique Mobile

    Filliat, David

    2011-01-01

    1 Introduction I Les bases de la navigation 2 Les différents types de navigation 3 Les sources d'information 4 Matériels courants en robotique mobile II Navigation réactive 5 Navigation vers un but 6 Évitement d'obstacles 7 Apprentissage par renforcement III Navigation utilisant une carte 8 Localisation, Cartographie et Planification 9 Les représentations de l'environne 10 Localisation 11 Cartographie 12 Planification École d'ingénieur

  8. Mobility Impact on Performance of Mobile Grids

    A. S. Nandeppanavar,; M. N. Birje,; S. S. Manvi,; Shridhar

    2010-01-01

    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 wo...

  9. Optimum Mobility Performance with Mobile IP & SIP

    B. Naresh Kumar; DR. R. V. KRISHNAIAH

    2013-01-01

    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.

  10. Mobile Security with Smartcards

    Kilian-Kehr, Roger

    2002-01-01

    Mobility in conjunction with communication facilities in the form of mobile telephony seems to be one of the major technology trends observed throughout the last decade. Many experts and analysts expect that the arrival of mobile services such as mobile commerce, location-based services, multi-media messaging, and mobile gaming in the third generation of mobile networks will be the next step in this success story. However, protecting service providers from fraud and mobile users from new thre...

  11. Tongue mobility in patients with cerebral palsy

    Živković Zorica; Golubović Slavica

    2012-01-01

    Background/Aim. In children with cerebral palsy speech is a big problem. Speech of these children is more or less understandable, depending on the degree of reduced mobility of articulatory organs. Reduced mobility is affected by inability to control facial grimacing and poor muscle strength when performing targeted movements. The aim of this study was to determine the mobility of tongue in patients with cerebral palsy. Methods. The study included a sample of 34 children - patients with...

  12. A MOBILITY MODEL FOR MOSFET DEVICE DIMULATION

    Walker, A.; Woerlee, P.

    1988-01-01

    The device characteristics of sub-micron MOS transistors depend strongly on the mobility of the charge carriers in the inversion layer. A new low lateral field mobility model for the normal field dependence will be presented. Good agreement was found between the predicted and measured mobilities for a large variety of samples. The model was successfully incorporated into a two - dimensional device simulation program which gave predictions agreeing well with experimental data.

  13. Mobile shearography

    Kalms, Michael; Jueptner, Werner

    2005-04-01

    By reason of their sensitivity, accuracy and non-contact as well as non-destructive characteristics, modern optical methods such as digital speckle shearography have found an increasing interest for NDT applications on the factory floor. With new carbon filter technologies and other lightweight constructions in aircraft and automotive manufacturing, adapted examination designs and especially developed testing methods are necessary. Shearography as a coherent optical method has been widely accepted as an 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 sherographic result images and at the work with non-cooperative surfaces (dark absorber, bright shining reflectors). We report a mobile shearography system that was especially designed for investigations at aircraft and automotive constructions.

  14. Mobile video with mobile IPv6

    Minoli, Daniel

    2012-01-01

    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

  15. Micro Mobility Marketing

    Hosbond, Jens Henrik; Skov, Mikael B.

    2008-01-01

    Mobile marketing refers to marketing of services or goods using mobile technology and mobile marketing holds potentially great economical opportunities. Traditionally, mobile marketing has been viewed as mobility in the large taking place virtually anywhere, anytime. Further, research shows...... similarities and differences between micro mobility marketing and the traditional mobile marketing in the large. Finally, we suggest areas for further study.Journal of Targeting, Measurement and Analysis for Marketing (2007) 16, 68-77. doi:10.1057/palgrave.jt.5750058; published online 24 December 2007...... considerable number of studies on push-based SMS mobile marketing campaigns. This paper explores a related yet different form of mobile marketing namely micro mobility marketing. Micro mobility marketing denotes mobility in the small, meaning that promotion of goods takes place within a circumscribed location...

  16. Mobile OS Comparative Study

    Joseph, Jyothy; K, Shinto Kurian

    2013-01-01

    In the fast growing mobile revolutionary era, many operating systems are playing vital role in present market. This study is intending to identify the apt and secure mobile based on mobile operating systems capability and user requirements.

  17. Mobile Inquiry Based Learning

    Specht, Marcus

    2012-01-01

    Specht, M. (2012, 8 November). Mobile Inquiry Based Learning. Presentation given at the Workshop "Mobile inquiry-based learning" at the Mobile Learning Day 2012 at the Fernuniversität Hagen, Hagen, Germany.

  18. Mobile Search and Advertising

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

    2009-01-01

    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...

  19. Trends in Mobile Marketing

    Chocholová, Petra

    2010-01-01

    The principal aim of this thesis is to assess the state of the mobile marketing as of the first quarter of 2011 and to discuss various scenarios of the future development. This thesis defines the terms "mobile marketing" and "mobile advertising" and identifies the main players in the industry. It explores the main categories of mobile advertising such as mobile messaging, in-content and mobile internet advertising. Later, it analyzes the latest trends in the industry and describes in detail t...

  20. Mobile Schools for a Mobile World

    Booth, Susan

    2013-01-01

    Overwhelmingly, independent schools are embracing mobile devices--laptops, iPads or other tablets, and smartphones--to enhance teaching and learning. This article describes the results of the "NAIS 2012 Mobile Learning Survey." Among its findings were that 75 percent of NAIS-member schools currently use mobile learning devices in at…

  1. Influencing Factors of ARC-MET8000 Protable Direct Reading Spectrometer in Actual Testing and It's Solution%ARC-MET8000便携式直读光谱仪使用中影响因素分析及处理

    白英华; 王领华; 孙铂尧; 张德健; 张媛; 杨旭

    2011-01-01

    介绍了ARC-MET8000便携式直读光谱仪的工作流程,分析总结了ARC-MET8000便携式直读光谱仪在实际应用中的影响因素及解决办法.%ARC-MET8000 portable direct reading spectrometer has many advantages in material chemistry composition detection. This paper has introduces the workflows of the ARC-MET8000. The influencing factors of AROMET8000 in actual testing were mainly analyses andsummarized, and the solutions of the problems in testing.

  2. Cross platform Mobile Applications Development: Mobile Apps Mobility

    Redda, Yonathan Aklilu

    2012-01-01

    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...

  3. Exploring technology acceptance for mobile services

    Kenny Phan

    2011-07-01

    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.

  4. Mobile commerce

    Παπαδανιήλ, Βασίλειος

    2014-01-01

    Η συνεχής ανάπτυξη των mobile συσκευών και συστημάτων, η εκτεταμένη χρήση του Διαδικτύου, οι ραγδαίες εξελίξεις στις ασύρματες τεχνολογίες, η αυξημένη ζήτηση για υψηλής ταχύτητας διαδραστικές υπηρεσίες πολυμέσων καθώς και η αυξανόμενη ανάγκη για ασφαλή ασύρματη επικοινωνία, οδήγησε στην ανάπτυξη του mobile commerce και στην καθιέρωση του στον επιχειρηματικό κόσμο. Η συνεχής βελτίωση των ασύρματων τεχνολογιών, ιδιαίτερα ως προς την ευελιξία και την ευχρηστία, οδήγησε στην παροχή διαφόρων υπηρε...

  5. Mobile Operating Systems

    Vipin Kamboj

    2012-04-01

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

  6. TYPOLOGIES OF MOBILE APPLICATIONS

    Ion Ivan; Alin Zamfiroiu2; Dragoş Palaghiţă3

    2013-01-01

    Mobile applications and their particularities are analyzed. Mobile application specific characteristics are defined. Types of applications are identified and analyzed. The paper established differences between mobile applications and mobile application categories. For each identified type the specific structures and development model are identified.

  7. Mobile Operating Systems

    Vipin Kamboj; Hitesh Gupta

    2012-01-01

    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

  8. Next generation mobile broadcasting

    Gómez-Barquero, David

    2013-01-01

    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

  9. Mobile platform security

    Asokan, N; Dmitrienko, Alexandra

    2013-01-01

    Recently, mobile security has garnered considerable interest in both the research community and industry due to the popularity of smartphones. The current smartphone platforms are open systems that allow application development, also for malicious parties. To protect the mobile device, its user, and other mobile ecosystem stakeholders such as network operators, application execution is controlled by a platform security architecture. This book explores how such mobile platform security architectures work. We present a generic model for mobile platform security architectures: the model illustrat

  10. Tenured Public Servant Mobility

    Aline Pauron

    2003-01-01

    The mobility of tenured public servants is studied from three points of view: geographic mobility (defined by a change of regional study and planning area (ZEAT) or department within a ZEAT), socio-economic mobility (change of socio-economic group) and structural mobility (change of ministry or service within a ministry). Geographic mobility is the most frequent, concerning an average 4.2% of staff every year. Not including upgrading (from grade D to grade C and from primary school teacher to...

  11. ON MOBILE MESH NETWORKS

    Namiot, Dmitry

    2015-01-01

    With the advances in mobile computing technologies and the growth of the Net, mobile mesh networks are going through a set of important evolutionary steps. In this paper, we survey architectural aspects of mobile mesh networks and their use cases and deployment models. Also, we survey challenging areas of mobile mesh networks and describe our vision of promising mobile services. This paper presents a basic introductory material for Masters of Open Information Technologies Lab, interested in m...

  12. MOBILE MARKETING FUTURE TRENDS

    CĂTOIU, Iacob; GÂRDAN, Daniel Adrian; GÂRDAN, Doru Lucian

    2010-01-01

    The present article proposes an introspection into the field of a new marketing specialization – mobile marketing. The concept mainly refers to all marketing activities related to the new communication channel – Short Message Service, Multimedia Messaging Service, and internet access from mobile phone. The article provides, at the same time, a marketing perspective about future trends of mobile marketing and mobile media, and also a technical perspective related to the future mobile communica...

  13. Factors affecting blind mobility

    Clark-Carter, David

    1985-01-01

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

  14. Tellurium Mobility Through Mine Environments

    Dorsk, M.

    2015-12-01

    Tellurium is a rare metalloid that has received minimal research regarding environmental mobility. Observations of Tellurium mobility are mainly based on observations of related metalloids such as selenium and beryllium; yet little research has been done on specific Tellurium behavior. This laboratory work established the environmental controls that influence Tellurium mobility and chemical speciation in aqueous driven systems. Theoretical simulations show possible mobility of Te as Te(OH)3[+] at highly oxidizing and acidic conditions. Movement as TeO3[2-] under more basic conditions may also be possible in elevated Eh conditions. Mobility in reducing environments is theoretically not as likely. For a practical approach to investigate mobility conditions for Te, a site with known Tellurium content was chosen in Colorado. Composite samples were selected from the top, center and bottom of a tailings pile for elution experiments. These samples were disintegrated using a rock crusher and pulverized with an automated mortar and pestle. The material was then classified to 70 microns. A 10g sample split was digested in concentrated HNO3 and HF and analyzed by Atomic Absorption Spectroscopy to determine initial Te concentrations. Additional 10g splits from each location were subjected to elution in 100 mL of each of the following solutions; nitric acid to a pH of 1.0, sulfuric acid to a pH of 2.0, sodium hydroxide to a pH of 12, ammonium hydroxide to a pH of 10, a pine needle/soil tea from material within the vicinity of the collection site to a pH of 3.5 and lastly distilled water to serve as control with a pH of 7. Sulfuric acid was purposefully chosen to simulate acid mine drainage from the decomposition of pyrite within the mine tailings. Sample sub sets were also inundated with 10mL of a 3% hydrogen peroxide solution to induce oxidizing conditions. All collected eluates were then analyzed by atomic absorption spectroscopy (AAS) to measure Tellurium concentrations in

  15. Drivers of sustainable future mobility

    Sigurdardottir, Sigrun Birna

    This PhD thesis presents three complementary studies that aimed to enhance knowledge of young people’s longitudinal mobility trends and the factors influencing adolescents’ future mobility intentions. First study was an analysis of Danish national travel survey data (TU) from 1995 to 2012. The...... sample consisted of young people divided into four age groups: 15-19 year old, 20-24 year old, 25-29 year old and 30-34 year old. The analysis explores the development of gender gaps for rural and urban living location. The mobility indicators analysed were; driving licence status, travel mode, distance...... travelled, number of trips, duration travelled and purpose of trips. The findings show that driving licence holding has increased, in particular for females in urban areas and car accessibility has increased sharply in rural areas. The development licensure rate is somewhat unique as it is in contrast to...

  16. Mobile Notes: Mobile Devices in Creative Discussions

    Bollen, Lars; Juarez, Guillermo; Hoppe, Ulrich

    2006-01-01

    The trendy notion of "mobile learning" has different connotations: On the one hand, it can be understood as "learning on the move" - often referred to as "learning any time anywhere". Of course this interpretation relies on specific kinds of technological enabling, but the definition aims at the general setting of learning activities. Particularly, it includes informal learning settings (cf. [1]). A second interpretation sees mobile learning somewhat more pragmatically as learning with mobile...

  17. MOBILE TELECOMMUNICATIONS SERVICES AND MOBILE HEALTH DEVICES

    Gheorghe Meghisan; Georgeta-Madalina Meghisan

    2015-01-01

    The purpose of this research paper is to identify the potential of mobile health devices with a positive impact on the public health care system from Romania. More people monitoring their health situation with the help of mobile health applications could lead to less money spent by the public health sector with treating more advanced diseases. Approach/ methodology. The analysis of the Romanian mobile telecommunications market and health situation of the population from Romania was based on s...

  18. Abrechnung mobiler Dienste im Mobile-Payment-Referenzmodell

    Pousttchi, Key; Wiedemann, Dietmar Georg

    2005-01-01

    The purpose of the paper is to analyze mobile payments in the mobile commerce scenario. Therefore, we first classify the mobile payment in the mobile commerce scenario by explaining general offer models, charging concepts, and intermediaries. Second, we describe the mobile payment reference model, especially, the mobile payment reference organization model and different mobile payment standard types. Finally, we conclude our findings.

  19. The Analysis of Inter-Firm Worker Mobility

    1993-01-01

    I use a sample of over fourteen thousand full-time jobs held by workers in the National Longitudinal Survey of Youth (NLSY) to examine mobility patterns and to evaluate theories of inter-firm worker mobility. The roles of both heterogeneity and state dependence in determining mobility rates for young workers are investigated, and both are found to be very important. There are three main findings. First, mobility is strongly positively related to the frequency of job change prior to the start ...

  20. Explaining mobile commerce services adoption by different type of customers

    Francisco J. Molina-Castillo; Carolina López-Nicolás; Harry Bouwman

    2008-01-01

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

  1. Mobile Scientific Calculator

    Mohammed Abdulrahim Hamdi

    2012-02-01

    Full Text Available The mobile and wireless industry is entering an exciting time. Demand for mobile technology is growing at a tremendous rate. Corporations are deploying mobile applications that provide substantial business benefits, and consumers are readily adopting mobile data applications. We present scientific application for mobile phone in steps of software engineering project starting from data gathering, data analysis, designing, coding, packaging, testing and deploying, Mobile Scientific Calculator (MSC enable user to compute any mathematical operation by using this application in mobile phone without needing to use the calculator. Scientific calculator offers three keys the four mathematic operations, the four systems of digits and offering many of functions such as angles functions, power, factorial and other functions. Scientific calculator is suitable for many mobile phones which don t have scientific calculator in its applications, it provide simple design for dealing with its functions for all users. It operated on more than one mobile phone model.

  2. Mobile Portal Implementation Strategy

    Gao, Ping; Damsgaard, Jan

    2005-01-01

    Mobile portal plays an important role in mobile commerce market. Current literature focuses on static analysis on the value chain of mobile portals. This article provides a dynamic perspective on mobile portal strategy. Drawing upon network economics, we describe mobile portal implementation...... as a fourphase process. In different phase, a portal provider has various challenges to overcome and adopt diverse strategies, and correspondingly the regulator has different foci. The conceptual framework proposed in this article offers a basis for further analyses on the market dynamics of mobile commerce...

  3. Head First Mobile Web

    Gardner, Lyza; Grigsby, Jason

    2011-01-01

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

  4. Mobile Router Technology Development

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

    2002-01-01

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

  5. Exploring the Mobility of Mobile Phone Users

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

    2013-01-01

    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 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 ...

  6. Mobile Phones on Campus

    朴春宝

    2007-01-01

    After entering the 21st century, more and more people have mobile phones in China. At the end of 2002, there were 20 million mobile phone users. By the year 2005 the number has reached up to 30 million.

  7. Tandem mobile robot system

    Buttz, James H.; Shirey, David L.; Hayward, David R.

    2003-01-01

    A robotic vehicle system for terrain navigation mobility provides a way to climb stairs, cross crevices, and navigate across difficult terrain by coupling two or more mobile robots with a coupling device and controlling the robots cooperatively in tandem.

  8. Ion mobility sensor system

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

    2013-01-22

    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.

  9. Mobile Multilayer IPsec protocol

    T.Gayathri

    2009-08-01

    Full Text Available 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 continuous handoff experienced by a mobile user. These challenges include dynamic binding, location management, quality of service and end-to-end security for signaling and transport. Mobile users will use heterogeneous radio access networking technologies. Mobile multilayer IPsec protocol (MML IPSec extends ML-IPSec to deal with mobility and make it suitable for wireless networks. MML-IPSec is integration of ML-IPSec and mobile IP.

  10. Mobile Informal Learning

    Glahn, Christian; Börner, Dirk

    2010-01-01

    Glahn, C., & Börner, D. (2009). Mobile Informal Learning. Presented at Mobile Learning in Context Symposium at the Open University of the Netherlands. September, 11, 2009, Heerlen, The Netherlands: Open University of the Netherlands.

  11. Test for mobility

    Li Kheng

    2014-01-01

    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 te...

  12. PSiS Mobile

    Anacleto, Ricardo; Luz, Nuno; Figueiredo, Lino

    2010-01-01

    In this paper, we present a state of the art on applications of mobile devices to support decision of a tourist running on a trip. We focus on two types of applications, tourism recommendation and tourism guide, making a brief description of the main characteristics of each one of them. We also refer the main problems encountered on the development of applications for mobile devices, and present PSiS (Personalized Sightseeing Tours Recommendation System) Mobile, our proposal to a mobile recom...

  13. Mobile internet protocol analysis

    Brachfeld, Lawrence J.

    1999-01-01

    Mobile Internet Protocol (IP) is a proposed standard that builds on the current Internet Protocol by making the fact that a user is mobile transparent to applications and higher level protocols such as Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). Mobile IP allows mobile computers to send and receive packets addressed with their home network IP address, regardless of the IP address of their current point of attachment on the Internet while maintaining any current conne...

  14. Fixed mobile convergence handbook

    Ahson, Syed A

    2010-01-01

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

  15. Mobile social gaming

    Coulton, Paul; Čopič Pucihar, Klen; Bamford, William

    2008-01-01

    After ten years of game design practices routed within traditional PC and console development aimed at hardcore gamers, the mobile games industry has embraced the realization that these have limited value for mobile, and new approaches need to be considered. In particular the greater utilization of social factors within games would embrace the social practices in which mobile phones often engage. Whilst this has led some to propose MMOGs for mobile, the behavior of players of these games sugg...

  16. Mobile connections : curator's statement.

    Hemment, Drew

    2004-01-01

    The Mobile Connections exhibition at the Futuresonic 2004 festival explored how mobile and locative media reconfigure social, cultural and information space. It looked beyond computing in its current form, towards the social and cultural possibilities opened by a new generation of networked, location-aware media. It sought an art of mobile communications: asking, are there any forms of expression that are intrinsic or unique to mobile and locative media?

  17. Focus on personal mobility

    Lucas Harms, Peter Jorritsma, Nelly Kalfs

    2011-01-01

    Focus on personal mobilityVarious important societal trends, including aging, immigration, individualization and re-urbanization, influence the mobility of Dutch people. In future, these trends will lead to further (yet slowing) growth in car use, to public transport being used less in rural regions and more in urban areas, and to bicycle use claiming a smaller share of total mobility. In 'Focus on personal mobility', the Kim Netherlands Institute for Transport Policy Analysis focuses on the ...

  18. Mobile Marketing in Japan

    Noah H. N. Lynn; Paul D. Berger

    2014-01-01

    In this paper we describe the state of mobile marketing in Japan. We consider the various aspects of mobile marketing in Japan and what has led to the overwhelming adoption by Japanese youth, and to a degree Japanese society as a whole, of social media and associated activities. This growth of mobile marketing has dramatic, positive implications for marketing, in general, as well as for the sale of selected product classes. We also consider markers for suggesting what the future of mobile mar...

  19. Mobile Services Adoption Model

    Abu Ghannam, Bashar

    2011-01-01

    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...

  20. Ion mobility spectrometry

    Eiceman, GA

    2005-01-01

    Key Developments for Faster, More Precise Detection Capabilities Driven by the demand for the rapid and advanced detection of explosives, chemical and biological warfare agents, and narcotics, ion mobility spectrometry (IMS) undergone significant refinements in technology, computational capabilities, and understanding of the principles of gas phase ion chemistry and mobility. Beginning with a thorough discussion of the fundamental theories and physics of ion mobility, Ion Mobility Spectrometry, Second Edition describes the recent advances in instrumentation and newly

  1. Mobile Student Information System

    Asif, Muhammad; Krogstie, John

    2011-01-01

    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…

  2. Mobile Collocated Interactions

    Lucero, Andrés; Clawson, James; Lyons, Kent;

    2015-01-01

    Mobile devices such as smartphones and tablets were originally conceived and have traditionally been utilized for individual use. Research on mobile collocated interactions has been looking at situations in which collocated users engage in collaborative activities using their mobile devices, thus...

  3. Identification of chemicals relevant to the Chemical Weapons Convention using the novel sample-preparation methods and strategies of the Mobile Laboratory of the Organization for the Prohibition of Chemical Weapons

    O. Terzic; H. Gregg; P. de Voogt

    2014-01-01

    The standard approach to on-site sample preparation for gas chromatography-mass spectrometry analysis of chemicals relevant to the Chemical Weapons Convention provides relatively good coverage of the target analytes, but it suffers from a number of drawbacks, such as low sample throughput, use of bu

  4. MOBILE BUSINESS APPROACH BASED ON MOBILE AGENT

    Ahmed Aloui

    2011-01-01

    Full Text Available Users today want the opportunity to make (or manage a businesses in anytime and anywhere via their mobile devices. This paper proposes the architecture with mobile agent for the mobile businesses (m-business. M-business appeared as the promising approach to drive the vague following one of electronic business (e-business. Most of the e-busines [9] applications uses the traditional model client/server in which a commercial operation requires generally a link of stable communication being established between the customer and the server, and the traditional approach client/server [8] constitutes an obstacle to the development of application of m-business. The proposed architecture introduces several advantages: in the first place, allow the consumers to manage their commercial business driven by types of mobile devices (phones, PDAs, etc. .... at any time and wherever. Secondly, minimize the waiting time of the customer, and the quantity of transferring information. Third, this architecture addresses the problem of time limited and expensive connection for mobile users. The Mobile agents will be used on a single level: research agent. Every research mobile agent will be used to visit the target server site of the application to collect the information’s for his client, which allows it to interact locally with a server, and so to reduce the traffic on the network by transmitting only the useful data.

  5. Evaluating Mobile Applications for Urban Tourism

    Roberto Peretta

    2014-06-01

    Full Text Available With the spread of mobile communication, destinations have to decide whether, and in case how, to inform and drive their guests through smartphones.Three groups of issues must be addressed. a. Mobile content and its usability differ from those designed for desktop. b. Smartphones use web pages as well as proprietary applications. c. Smartphones connect both through telecoms and hotspots, posing specific cost problems. With a view to understanding how these issues have been addressed by urban destinations, a reasonably representative sample of forty-four European destinations was identified.To compare the quality of the mobile applications available in the sample destinations, the 7Loci meta-model – already well established for destination websites – was used. More discursively, some critical points were finally identified, and the mobile services available on-site were compared with those offered for the same cities by four global platforms: TripAdvisor, Foursquare, TripWolf and Google.

  6. Undergraduate Attitudes and Expectations for Mobile Banking

    Hanudin Amin

    2006-12-01

    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.

  7. Distributed mobility management - framework & analysis

    Liebsch, M.; Seite, P.; Karagiannis, G.

    2013-01-01

    Mobile operators consider the distribution of mobility anchors to enable offloading some traffic from their core network. The Distributed Mobility Management (DMM) Working Group is investigating the impact of decentralized mobility management to existing protocol solutions, while taking into account

  8. Supersampling and Network Reconstruction of Urban Mobility.

    Oleguer Sagarra

    Full Text Available Understanding human mobility is of vital importance for urban planning, epidemiology, and many other fields that draw policies from the activities of humans in space. Despite the recent availability of large-scale data sets of GPS traces or mobile phone records capturing human mobility, typically only a subsample of the population of interest is represented, giving a possibly incomplete picture of the entire system under study. Methods to reliably extract mobility information from such reduced data and to assess their sampling biases are lacking. To that end, we analyzed a data set of millions of taxi movements in New York City. We first show that, once they are appropriately transformed, mobility patterns are highly stable over long time scales. Based on this observation, we develop a supersampling methodology to reliably extrapolate mobility records from a reduced sample based on an entropy maximization procedure, and we propose a number of network-based metrics to assess the accuracy of the predicted vehicle flows. Our approach provides a well founded way to exploit temporal patterns to save effort in recording mobility data, and opens the possibility to scale up data from limited records when information on the full system is required.

  9. Automated mobility-classified-aerosol detector

    Russell, Lynn M.; Flagan, Richard C.; Zhang, Shou-Hua

    2001-01-01

    An aerosol detection system for measuring particle number distribution with respect to particle dimension in an aerosol sample. The system includes an alternating dual-bag sampler, a radially classified differential mobility analyzer, and a condensation nucleus counter. Pressure variations in sampling are compensated by feedback control of volumetric flow rates using a plurality of flow control elements.

  10. Mobile Virtual Private Networking

    Pulkkis, Göran; Grahn, Kaj; Mårtens, Mathias; Mattsson, Jonny

    Mobile Virtual Private Networking (VPN) solutions based on the Internet Security Protocol (IPSec), Transport Layer Security/Secure Socket Layer (SSL/TLS), Secure Shell (SSH), 3G/GPRS cellular networks, Mobile IP, and the presently experimental Host Identity Protocol (HIP) are described, compared and evaluated. Mobile VPN solutions based on HIP are recommended for future networking because of superior processing efficiency and network capacity demand features. Mobile VPN implementation issues associated with the IP protocol versions IPv4 and IPv6 are also evaluated. Mobile VPN implementation experiences are presented and discussed.

  11. Do we value mobility?

    Amiel, Yoram; Bernasconi, Michele; Cowell, Frank; Dardanoni, Valentino

    2015-01-01

    Is there a trade-off between people's preference for income equality and income mobility? Testing for the existence of such a trade-off is difficult because mobility is a multifaceted concept. We analyse results from a questionnaire experiment based on simple precise concepts of income inequality and income mobility. We fnd no direct trade-off in preference between mobility and equality, but an indirect trade-off, applying when more income mobility can only be obtained at the expense of some ...

  12. Mobile intention recognition

    Kiefer, Peter

    2011-01-01

    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

  13. An Evaluation of Mobile Health Application Tools

    Sama, Preethi R; Eapen, Zubin J; Weinfurt, Kevin P.; Shah, Bimal R; Schulman, Kevin A

    2014-01-01

    Background The rapid growth in the number of mobile health applications could have profound significance in the prevention of disease or in the treatment of patients with chronic disease such as diabetes. Objective The objective of this study was to describe the characteristics of the most common mobile health care applications available in the Apple iTunes marketplace. Methods We undertook a descriptive analysis of a sample of applications in the “health and wellness” category of the Apple i...

  14. Social Cognitive Theory in Mobile Banking Innovations

    Vanessa Ratten

    2011-01-01

    This paper examines the behavior Australian youths have toward mobile banking. Social cognitive theory is the theoretical framework in which a conceptual model is empirically tested. The conceptual model includes five constructs (media, modeling, outcome expectancy, learning orientation and entrepreneurial orientation), which are proposed to influence an individual’s intention to adopt mobile banking. The conceptual model is tested in a sample of Australian youths and the analysis supports ...

  15. Mobility Charters and Manifestos

    Jensen, Ole B.

    2010-01-01

    This paper explore a number of different cases of articulating notions of ‘correct’ mobility behavior and practice by looking into charters, manifestos and codes of mobility regulation. Within such discourses of ‘correct mobility’ more or less subtle expressions of power as well as normative and...... ethical positions on mobility prevail. Such ‘imagined correct mobility behavior’ are drawing on larger issues of societal change that need to be brought out in a critical analysis and discussion reflecting the attempts to control, design and orchestrate mobility patterns. The paper therefore argues within...... 2007, the English ‘Highway Code Booklets’ from the 1930’s, 40’s and 50’s, the ‘City Slow Charter’, the ‘New Urbanism Charter’ as attempts to codify and order mobility and mobile practices....

  16. Sampling methods

    Kılıç, Selim

    2013-01-01

    Most of the studies related to health are conducted with samples. Selection of sampling may be performed with random or nonrandom sampling methods. Sampling methods may vary with respect to some characteristics of study population, researchers’ aims and facilities. It is necessary to select samples by random sampling methods in order to provide the representativeness of the study population. The advantages and disadvantages of different sampling methods are presented in this manuscript which ...

  17. Boat sampling

    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

  18. Mobile VLE vs. Mobile PLE: How Informal is Mobile Learning?

    Chen, Wen-Pin; Millard, David; Wills, Gary

    2008-01-01

    Mobile Learning Systems are often described as supporting informal learning; as such they are a good fit to the idea of Personal Learning Environments (PLEs), software systems that users choose and tailor to fit their own learning preferences. This paper explores the question of whether existing m-learning research is more in the spirit of PLEs or Virtual Learning Environments (VLEs). To do this we survey the mobile learning systems presented at M-Learn 2007 in order to see if they might be r...

  19. Mobile healthcare informatics.

    Siau, Keng; Shen, Zixing

    2006-06-01

    Advances in wireless technology give pace to the rapid development of mobile applications. The coming mobile revolution will bring dramatic and fundamental changes to our daily life. It will influence the way we live, the way we do things, and the way we take care of our health. For the healthcare industry, mobile applications provide a new frontier in offering better care and services to patients, and a more flexible and mobile way of communicating with suppliers and patients. Mobile applications will provide important real time data for patients, physicians, insurers, and suppliers. In addition, it will revolutionalize the way information is managed in the healthcare industry and redefine the doctor - patient communication. This paper discusses different aspects of mobile healthcare. Specifically, it presents mobile applications in healthcare, and discusses possible challenges facing the development of mobile applications. Obstacles in developing mobile healthcare applications include mobile device limitations, wireless networking problems, infrastructure constraints, security concerns, and user distrust. Research issues in resolving or alleviating these problems are also discussed in the paper. PMID:16777784

  20. Social mobility and fertility.

    Kasarda, J D; Billy, J O

    1985-01-01

    This review examines 4 possible causal links between social mobility and fertility: 1) fertility affects social mobility; 2) social mobility affects fertility; 3) fertility and social mobility simultaneously affect each other; and 4) social mobility and fertility are unrelated. Due to the lack of systematic theory guiding the research, conceptualizations and measures of social mobility and fertility vary markedly from study to study, leading to inconsistent findings. The review focuses on theoretical perspectives underpinning the research, causal operators proposed to interpret observed associations, and analytical methods used. The selectivity perspective is based on the contention that a family must be small in order to rise on the social scale. This has found little support, however. In fact, studies suggest that children induce slightly higher levels of status achievement and family responsibilities may stimulate the energy and ambition of some so that they achieve more than they would have done without a family. Most studies have concerned the hypothesis that social mobility affects fertility. 4 theoretical perspectives have emerged: status enhancement; relative economic status; social isolation; and stress and disorientation. At any time in a couple's reproductive life cycle the decision or actual experience of either social mobility or fertility may influence the decision or actual experience of the other variable. Mobility-fertility research has defined an individual's or couple's position in terms of income, education, or occupation with occupation used most often as a single index of social class and indexes of social mobility developed by comparing persons' changes in occupational position. A common theme in much of the research literature is that the existence of an effect of social mobility on fertility depends on the societal conditions of a given population. Most studies through the mid-60s used a common measurement method to assess whether a

  1. Geo-based Mobility Control for Mobile Traffic Simulators

    Dahlström, Patrik

    2013-01-01

    Most mobile traffic simulators of today depend on the user to supply the mobility behavior of the simulated UEs. This becomes a problem when certain wanted mobility characteristics are to be tested, since the user have to go trough a trial-and-error procedure to come up with the proper mobility behavior. This thesis presents two approaches to mobility control, where the aim is to control UE mobility based on certain mobility characteristics supplied by the end user. The first approach introdu...

  2. Hole mobility in aluminium implanted silicon

    Galvagno, G.; La Ferla, A.; La Via, F.; Raineri, V.; Gasparotto, A.; Carnera, A.; Rimini, E.

    1997-11-01

    The dependence of the hole mobility on the dopant concentration ranging from 0268-1242/12/11/018/img8 to 0268-1242/12/11/018/img9 was determined at room temperature in Al-implanted Si samples. The trend was obtained by the use of Hall effect and resistivity measurements on the van der Pauw pattern in combination with secondary-ion mass spectrometry and spreading resistance analysis. The mobility data are in a quite good agreement with the Wagner curve for boron in the high Al concentration region while they approach the Thurber boron curves at low concentrations. This result indicates that the neutral and ionized impurity scattering mechanisms are not critically different for Al- and B-doped samples. The mobility - dopant concentration curve can be employed to convert the resistivity profiles obtained by spreading resistance measurements into hole concentration distributions for Al-doped samples.

  3. Slice Sampling

    Neal, Radford M.

    2000-01-01

    Markov chain sampling methods that automatically adapt to characteristics of the distribution being sampled can be constructed by exploiting the principle that one can sample from a distribution by sampling uniformly from the region under the plot of its density function. A Markov chain that converges to this uniform distribution can be constructed by alternating uniform sampling in the vertical direction with uniform sampling from the horizontal `slice' defined by the current vertical positi...

  4. Embodied Cultures of Mobilities

    Jensen, Ole B.

    2010-01-01

    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...... 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...... 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...

  5. Making Everyday Mobility

    Wind, Simon

    Based upon a qualitative PhD study of 11 families everyday mobility, this paper inquiries into the everyday mobility of families with children in the Greater Copenhagen Area and the role mobility plays in contributing to coping in the families’ everyday life. Drawing on Mobilities theory (Jensen...... 2013; Urry 2007) and family theory (Holdsworth 2013; Morgan 2011), it is argued that family mobility is far from only an instrumental phenomenon, displacing family members back and forth between activities and doings, but also a type of family practice (Morgan, 2011) carrying social and emotional...... practices. Specific heterogeneous configurations in mobility practices facilitate instrumental movement of family members, but can also engender care, quality time of togetherness, recreational and productive in-betweens, as well as sensorial and emotional experiences through the orchestration of affective...

  6. CERN Mobility Survey

    GS Department

    2011-01-01

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

  7. Understanding pastoral mobility

    Adriansen, Hanne Kirstine

    2008-01-01

    Based on a case study from Sahelian Senegal, this paper analyses how various actors perceive the importance of pastoral mobility and presents issues of importance for understanding the use of mobility among Fulani of Ferlo. One knowledge system is a scientific one, the 'new rangeland paradigm......'. According to this, pastoral mobility is a means to balance variability in dryland resources; hence, 'nature' is the point of departure. Another knowledge system is local pastoral knowledge. For the pastoralists, the well-being of their animals is the point of departure and mobility is used to ensure that...... the livestock are in good condition. The paper shows that it is important to distinguish between mobility of pastoralists and of their herd; even though the pastoralists of northern Senegal have become semi-sedentary, their herds are still quite mobile. The pastoralists are willing to move around...

  8. Understanding pastoral mobility

    Adriansen, Hanne Kirstine

    2008-01-01

    Based on a case study from Sahelian Senegal, this paper analyses how various actors perceive the importance of pastoral mobility and presents issues of importance for understanding the use of mobility among Fulani of Ferlo. One knowledge system is a scientific one, the 'new rangeland paradigm......'. According to this, pastoral mobility is a means to balance variability in dryland resources; hence, 'nature' is the point of departure. Another knowledge system is local pastoral knowledge. For the pastoralists, the well-being of their animals is the point of departure and mobility is used to ensure that...... within a small territory, which they consider their place, but are unwilling to employ large-scale mobility themselves. Mobility is not of importance for their ethnic identity and some use paid herders to care for their livestock. By looking at both knowledge systems, we achieve a better understanding of...

  9. Mobile Learning Project Report

    Folley, Susan; Jabbar, Abdul

    2010-01-01

    Mobile learning is not a new concept, learning whilst on the move or away from formal educational settings has been happening a long time with the use of books, journal articles, television, radio etc. However what is new is the vast array of devices now available to access learning and to take advantage of being mobile but still being able to capture information and share, collaborate and upload it to a worldwide audience. Mobile learning (mlearning) is a growing area of pedagogic res...

  10. Mobile Exergaming Heuristics

    Monk, Monika Patrice

    2014-01-01

    An alarming number of adolescents experience obesity and related health issues, in part because of a lack of exercise. Increased mobile technology availability can have negative effects on amount of exercise, but they can have positive effects as well. Leveraging mobile technology to encourage and motivate exercise has potential to decrease unhealthy lifestyles, especially among young people. Mobile exergaming is an emerging field that has the potential to motivate users to exercise while als...

  11. Mobile Cranes Models Review

    Škaloud, Martin

    2011-01-01

    The thesis deals with mobile cranes with a lifting capacity of 50 tonnes. The introduction describes the basic concepts related to these machines. Followed by a general cranes overview. This thesis focuses on a brief description of wheeled and tracked mobile cranes. It describes the undercarriage of the wheeled cranes and undercarriage of the tracked crane and crawler crane with it’s basic elements. After that is described the structure of the upper rotating wheel and track mobile truck crane...

  12. Crossword solving mobile application

    Pencelj, Andraž

    2013-01-01

    The thesis describes development of crossword solving mobile application with PhoneGap framework. The emphasis is on application development for Android platform. Thesis describes only application which runs on mobile devices without server-side part. First part of thesis describes crosswords and their history. It also describes technologies which were used. Emphasis is on describing PhoneGap framework and mobile web browsers. PhoneGap framework is used to develop native applications for m...

  13. Inequality and Mobility

    John Hassler; José Vicente Rodríguez Mora; Joseph Zeira

    2003-01-01

    We use a general equilibrium OLG model to analyse the relation between intergenerational social mobility and wage inequality. We show that the correlation between mobility and inequality depends on which factor caused the change in inequality. The model can thus help discriminate between different competing explanations of the recent rise in US wage inequality. Under reasonable assumptions, skill-biased technical change tends to increase upward mobility, thereby causing a positive correlation...

  14. Inequality and Mobility

    Rodriguez Mora, Sevi; Hassler, John; Zeira, Joseph

    2007-01-01

    We use a general equilibrium OLG model to analyse the relation between intergenerational social mobility and wage inequality. We show that the correlation between mobility and inequality depends on which factor caused the change in inequality. The model can thus help discriminate between different competing explanations of the recent rise in US wage inequality. Under reasonable assumptions, skill-biased technical change tends to increase upward mobility, thereby causing a positive correlation...

  15. Mobile computing for radiology.

    Auffermann, William F; Chetlen, Alison L; Sharma, Arjun; Colucci, Andrew T; DeQuesada, Ivan M; Grajo, Joseph R; Kung, Justin W; Loehfelm, Thomas W; Sherry, Steven J

    2013-12-01

    The rapid advances in mobile computing technology have the potential to change the way radiology and medicine as a whole are practiced. Several mobile computing advances have not yet found application to the practice of radiology, while others have already been applied to radiology but are not in widespread clinical use. This review addresses several areas where radiology and medicine in general may benefit from adoption of the latest mobile computing technologies and speculates on potential future applications. PMID:24200475

  16. Mobile Trillium Engine

    Ali, Muhammad Ahmed

    2013-01-01

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

  17. Perancangan Dashboard Mobil Pedesaan Multiguna

    Nurul Madinah; I Made Londen Batan

    2013-01-01

    Mobil GEA yang merupakan mobil nasional akan dikembangkan menjadi mobil pedesaan multiguna. Salah satu bagian dalam mobil GEA yang menjadi perhatian adalah dashboard. Selama ini dashboard mobil GEA diproduksi secara manual, yaitu menggunakan proses wet lay-up dengan bahan komposit. Rencana ke depan produksi mobil pedesaan multiguna adalah produksi massa. Untuk memenuhi kebutuhan tersebut dirancang proses cetakan injeksi plastik (injection molding) untuk pembuatan dashboard mobil pedesaan mult...

  18. Mobility decline in old age

    Rantakokko, Merja; Mänty, Minna Regina; Rantanen, Taina

    2013-01-01

    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 pro...... promote mobility in old age.......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...

  19. Exploring the mobility of mobile phone users

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

    2013-03-01

    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.

  20. Trust in Mobile Commerce

    Kounelis, Ioannis; Loeschner, Jan

    2012-01-01

    This paper describes how a citizen, in our case a user of a mobile phone, is confronted with several aspects of trust when he/she uses different mobile commercial objects in a digital world. In particular, the topic of m-commerce and how a client mitigates trust all the way from his/her mobile device to the merchant is dealt with. To assess the trust chain, especially in respect to privacy and data protection, objects (for example a voucher) are used to model the mobile commerce domain.

  1. Programming the Mobile Web

    Firtman, Maximiliano

    2010-01-01

    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.

  2. Test for mobility

    Li Kheng

    2014-06-01

    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.

  3. Mobile sentiment analysis

    Chambers, L.; Tromp, E.; Pechenizkiy, M.; M. Gaber

    2012-01-01

    Mobile devices play a significant part in a user’s communication methods and much data that they read and write is received and sent via mobile phones, for instance SMS messages, e-mails, Twitter tweets and social media networking feeds. One of the main goals is to make people aware of how much negative and positive content they read and write via their mobile phones. Existing sentiment analysis applications perform sentiment analysis on downloaded data from mobile phones or use an applicatio...

  4. Mobile Test Capabilities

    Federal Laboratory Consortium — The Electrical Power Mobile Test capabilities are utilized to conduct electrical power quality testing on aircraft and helicopters. This capability allows that the...

  5. Mobile computing handbook

    Ilyas, Mohammad

    2004-01-01

    INTRODUCTION AND APPLICATIONS OF MOBILE COMPUTING Wearable Computing,A. Smailagic and D.P. Siewiorek Developing Mobile Applications: A Lime Primer,G.P. Picco, A.L. Murphy, and G.-C. Roman Pervasive Application Development: Approaches and Pitfalls,G. Banavar, N. Cohen, and D. Soroker ISAM, Joining Context-Awareness and Mobility to Building Pervasive Applications,I. Augustin, A. Corrêa Yamin, J.L. Victória Barbosa, L. Cavalheiro da Silva, R. Araújo Real, G. Frainer, G.G. Honrich Cavalheiro, and C.F. Resin Geyer Integrating Mobile Wireless Devices into the Computational Grid,T. Phan, L. Huan

  6. Doctors going mobile.

    Romano, Ron; Baum, Neil

    2014-01-01

    Having a Web page and a blog site are the minimum requirements for an Internet presence in the new millennium. However, a Web page that loads on a personal computer or a laptop will be ineffective on a mobile or cellular phone. Today, with more existing and potential patients having access to cellular technology, it is necessary to reconfigure the appearance of your Web site that appears on a mobile phone. This article discusses mobile computing and suggestions for improving the appearance of your Web site on a mobile or cellular phone. PMID:25807610

  7. Secure Mobile Identities

    Chandrasekaran, Varun; Amjad, Fareeha; Sharma, Ashlesh; Subramanian, Lakshminarayanan

    2016-01-01

    The unique identities of every mobile user (phone number,IMSI) and device (IMEI) are far from secure and are increasingly vulnerable to a variety of network-level threats. The exceedingly high reliance on the weak SIM authentication layer does not present any notion of end-to-end security for mobile users. We propose the design and implementation of Secure Mobile Identities (SMI), a repetitive key-exchange protocol that uses this weak SIM authentication as a foundation to enable mobile users ...

  8. Guest Editorial ~ Mobile Learning

    Mohamed Ally

    2007-06-01

    Full Text Available This special IRRODL issue on mobile learning is timely because of the proliferation of mobile technology in society, globalization, and the need to re-examine how learning materials are designed and delivered for the new generation of learners. In today’s world, people are on the move and are demanding access to learning materials and information anytime and anywhere. At the same time, there is increasing use of mobile technology in different sectors of society to meet the needs of people on the move. In business, there is increasing use of mobile technologies for individuals to conduct their business anywhere and anytime. In healthcare, medical staff are using mobile technologies to access just-in-time information and to enter information in real time. People working in the field away from the central office use mobile technologies to access information and to communicate with other workers. Also, younger generations of learners are using mobile technologies for entertainment and socialization. These learners are using mobile devices to access information and multimedia materials and to communicate with friends. These new generations of learners do not see technology as something foreign. They readily accept technology and consider technology to be part of their lives. Moreover, the use of mobile technology is a 21st Century skill that students and workers must have to function in society.

  9. Disability and mobile Internet

    Goggin, Gerard

    2015-01-01

    As the World Wide Web turns 25, it is an appropriate time to ask: where are we are now with disability and the Internet? A good place to look is in the burgeoning area of Internet and mobile technology. Accordingly, this paper explores the issues and prospect for disability and mobile Internet. It provides a brief history of the entwined nature of the rise of disability and the Internet, discusses the emergence of mobile Internets, and then turns to a discussion of mobile Web accessibility. I...

  10. Cooperative Mobile Web Browsing

    Perrucci, GP; Fitzek, FHP; Zhang, Qi;

    2009-01-01

    This paper advocates a novel approach for mobile web browsing based on cooperation among wireless devices within close proximity operating in a cellular environment. In the actual state of the art, mobile phones can access the web using different cellular technologies. However, the supported data......-range links can then be used for cooperative mobile web browsing. By implementing the cooperative web browsing on commercial mobile phones, it will be shown that better performance is achieved in terms of increased data rate and therefore reduced access times, resulting in a significantly enhanced web...

  11. Practical mobile forensics

    Bommisetty, Satish; Mahalik, Heather

    2014-01-01

    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

  12. Supersampling and network reconstruction of urban mobility

    Sagarra, Oleguer; Santi, Paolo; Diaz-Guilera, Albert; Ratti, Carlo

    2015-01-01

    Understanding human mobility is of vital importance for urban planning, epidemiology, and many other fields that aim to draw policies from the activities of humans in space. Despite recent availability of large scale data sets related to human mobility such as GPS traces, mobile phone data, etc., it is still true that such data sets represent a subsample of the population of interest, and then might give an incomplete picture of the entire population in question. Notwithstanding the abundant usage of such inherently limited data sets, the impact of sampling biases on mobility patterns is unclear -- we do not have methods available to reliably infer mobility information from a limited data set. Here, we investigate the effects of sampling using a data set of millions of taxi movements in New York City. On the one hand, we show that mobility patterns are highly stable once an appropriate simple rescaling is applied to the data, implying negligible loss of information due to subsampling over long time scales. On...

  13. Key determinants of students’ mobile phone choice

    Michael Dzigbordi Dzandu

    2014-08-01

    Full Text Available As there is still only limited research on students brand choice of mobile phones, the focus of this study was to ascertain drivers of tertiary students’ mobile phone brand choice in Ghana. Using a structured questionnaire, data was collected from a random sample of 840 students from three tertiary institutions in Ghana. The study revealed that the most significant determinant of the students brand choice of mobile phones was perceived quality (p0.05. The study concludes that in spite of their economic handicaps, students brand choice was driven most by perceived quality and not price. Recommendations on how information technology manufacturers’ particularly mobile phone companies and marketers can exploit these drivers to sustain and improve their brand equity among students have been made.

  14. Predictors of Social Mobilization Speed

    Alstott, Jeff; Velu, Chander

    2013-01-01

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

  15. Mobilizing community energy

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

  16. Increasing mobile radiography productivity.

    Wong, Edward; Lung, Ngan Tsz; Ng, Kris; Jeor, Patrick

    2013-01-01

    Mobile radiography using computed radiography (CR) cassettes is a common equipment combination with a workflow bottleneck limited by location of CR readers. Advent of direct digital radiography (DDR) mobile x-ray machines removes this limitation by immediate image review and quality control. Through the use of key performance indicators (KPIs), the increase in efficiency can be quantified. PMID:23986937

  17. Global Mobile Communication System

    ECT Team, Purdue

    2007-01-01

    The Global Mobile Communications System is a satellite-based, wireless personal communications network designed to permit any type of telephone transmission -- voice, data, fax, paging -- to reach its destination anywhere on earth, at any time. It is bringing a new dimension of capability to the commercial, rural and mobile sectors by providing universal, portable service.

  18. Security for Mobility

    Nielson, Hanne Riis; Nielson, Flemming; Buchholtz, Mikael

    2004-01-01

    We show how to use static analysis to provide information about security issues related to mobility. First the syntax and semantics of Mobile Ambients is reviewed and we show how to obtain a so-called 0CFA analysis that can be implemented in polynomial time. Next we consider discretionary access...

  19. Mobile banking in Asia

    Anne Ho

    2010-01-01

    Technology has transformed the banking industry with the introduction of mobile banking services that offer unprecedented convenience and accessibility to customers. This Asia Focus report describes the various approaches to mobile banking in Asia, and examines how particular countries have addressed regulatory issues.

  20. Staging interrail mobilities

    Jensen, Martin Trandberg; Gyimóthy, Szilvia; Jensen, Ole B.

    2016-01-01

    This article applies the multiscalar ‘staging mobilities’ framework from the emergent subfield of mobilities design to analyse an enduring European rail travel phenomenon, interrail. This discussion extends and contributes to tourism mobilities research. Second, the article enriches previous stud...

  1. Utopias of Mobilities

    Jensen, Ole B.; Freudendal-Pedersen, Malene

    2012-01-01

    Contemporary global challenges to the distribution and organization of mobilities require new ways of envisioning and imagining to bring forward the discussion about new visions and thus policies of future mobilities. This chapter explores the imaginary visioning by using earlier utopian thoughts...

  2. Proxemic Mobile Collocated Interactions

    Porcheron, Martin; Lucero, Andrés; Quigley, Aaron;

    2016-01-01

    Recent research on mobile collocated interactions has been looking at situations in which collocated users engage in collaborative activities using their mobile devices. However, existing practices fail to fully account for the culturally-dependent spatial relationships between people and their d...

  3. Telemedicine by mobile communication

    Shimizu, K.

    1999-01-01

    We have proposed some techniques for mobile telemedicine and have verified their practical feasibility in experiments. This article presents technical considerations required to realize a practical mobile telemedicine system, techniques developed for multiple medical data transmission, and the satisfactory results of their applications to telemedicine in moving vehicles

  4. Mobility Management in Denmark

    Guasco, Clement Nicolas

    2012-01-01

    people fulfil their mobility needs so that they rely less on their cars and start using alternatives such as bicycles and public transport. This article analyses the possibility to use businesses as vectors for introducing Mobility Management within social practices in Denmark in the light of the recent...

  5. Mobile-first Bootstrap

    Magno, Alexandre

    2013-01-01

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

  6. Wireless mobile Internet security

    Rhee, Man Young

    2013-01-01

      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

  7. Mastering Mobile Security

    Panettieri, Joseph C.

    2007-01-01

    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…

  8. Designing for mobile interaction

    Nazzi, Elena

    2009-01-01

    The theme of this PhD project is designing for mobile interaction with devices and services, for the accessing, making, and sharing of information, taking into account the dynamic physical and social settings that embrace this interaction. To narrow down this theme, the whole project focuses on the...... exploitation of social interaction --- in particular among senior citizens --- to enhance and support mobile interaction....

  9. Mobile Learning Anytime, Anywhere

    Hlodan, Oksana

    2010-01-01

    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…

  10. Security for Mobility

    Nielson, Hanne Riis; Nielson, Flemming; Buchholtz, Mikael

    2002-01-01

    We show how to use static analysis to provide information about security issues related to mobility. First the syntax and semantics of Mobile Ambients is reviewed and we show how to obtain a so-called 0CFA analysis that can be implemented in polynomial time. Next we consider discretionary access...

  11. Mobile Informal Learning

    Börner, Dirk; Glahn, Christian; Specht, Marcus

    2009-01-01

    Börner, D., Glahn, C., & Specht, M. (2009). Mobile Informal Learning. Presentation for the Education in the Wild: contextual and location-based mobile learning in action workshop at the STELLAR Alpine Rendez-Vous 2009. November, 30-December, 3, 2009, Garmisch-Partenkirchen, Germany.

  12. Understanding Mobile Apps

    ... Related Items Tips for Using Public Wi-Fi Networks Computer Security Kids and Mobile Phones If you have ... Free" Security Scans Computer Security Disposing of Old Computers Disposing of Your Mobile ... Your Wireless Network Tech Support Scams Tips for Using Public Wi- ...

  13. Mobile Apps for Librarians

    Power, June L.

    2013-01-01

    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,…

  14. mSpace Mobile: Exploring Support for Mobile Tasks

    Wilson, Max L.; Russell, Alistair; Smith, Daniel A.; Schraefel, M. C.

    2006-01-01

    In the following paper we present a formative study comparing two Web application interfaces, mSpace Mobile and Google Local in supporting Web-based location discovery tasks on mobile devices while stationary and while on the move. While mSpace Mobile performed well in both stationary and mobile conditions, performance in Google Local dropped significantly in the mobile condition. We postulate that mSpace Mobile performed better because it breaks the paradigm of the page for delivering Web co...

  15. European mobility cultures

    Haustein, Sonja; Nielsen, Thomas A. Sick

    2016-01-01

    More targeted European policies promoting green travel patterns require better knowledge on differing mobility cultures across European regions. As a basis for this, we clustered the EU population into eight mobility styles based on Eurobarometer data. The mobility styles - including, for example......, "green cyclists" and "convenience drivers" - differed not only in their travel-related variables but also in their socio-economic background, IT-affinity, and life satisfaction, with green cyclist showing the highest life satisfaction and two car-oriented styles having the highest socio...... positions on the path towards sustainable mobility and therefore different requirements towards European platforms and support measures, e.g. for 'Sustainable Urban Mobility Plans'. The country clusters can provide a starting point for future communication and targeting of European efforts in sustainable...

  16. Talk, Mobility and Materialities

    McIlvenny, Paul

    The intersection of the quotidian practices of social interaction, learning and mobility outside of the classroom – for example, the ways in which talk shapes how children learn to be actively mobile – has been little studied until recently. This paper develops a social interactional approach to...... analysing talk and mobile action in what are arguably two quintessentially Nordic mobility practices, namely cycling and skiing. More specifically the focus is on investigating and comparing how a child learns to cycle in a bike-friendly urban infrastructure, and how a child learns to ski cross......-country, both within the context of familial social interaction. Audiovisual data was collected with mobile video cameras from family bike rides in Denmark and family skiing in Finland, in which among other things a parent instructs and guides a child to bike or to ski. Using an EMCA approach, the analysis...

  17. Children's velo-mobility

    Carstensen, Trine Agervig; Nielsen, Thomas Sick; Olafsson, Anton Stahl

    2014-01-01

    Sustainable mobilities play a dominate role in low carbon futures and cycling is an integral element. Children are heirs of transport cultures and crucial for future sustainable mobility. Moreover cycling is important for children’s independent mobility and geographical experience. Dominating...... approaches in transport research, including cycling, understand travel behaviour individualistic and lack to grasp the relational complexities, which are inevitable when considering children’s mobilities. Furthermore has children’s cycling largely been studied as independent mobility and active school travel....... How cycling is learned and constituted, and how cycling skills are consolidated, extended and turned into a stabilized practice remains unstudied. Drawing on in-depth interview data from the region of Copenhagen, Denmark, among families with children (N=20) the paper provides new insights into how...

  18. Promoting regional mobility

    Jensen, Anne

    . Development of pricing policies is contested at Community level and has taken place in a clash between different policy rationalities. Significantly though, the effects of the pricing policies are closely related to regional mobility systems, e.g. through financing large trans-border infrastructure projects...... and establishing common technical charging systems thus changing the conditions for regional mobility. This paper explores how policies of infrastructure pricing shape new ways of governing mobility which influences trans-border, regional policy-making. The key findings are that there is a tendency to...... include ideas of mobility as a narrative in community transport policy which further that through Community pricing policies, the conditions for mobility is enhanced in a Community perspective. However, when this is connected to infrastructure pricing, the effect is largest at a regional scale. Further...

  19. MOBILIZING KNOWLEDGE IN DENMARK

    Holm, Claus

    2011-01-01

    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...

  20. RESEARCH SAMPLING

    NISHA MD

    2012-01-01

    No aspect of the research plan is more critical for assuring the usefulness of a study than the sampling strategy. It will determine if the results of the study can be applied as evidence and contributes to the trustworthiness of the results. The sampling strategy is a critical part of research design. An appropriate sampling plan is vital for drawing the right conclusions from a study. Good sampling is critical for the confident application of the study findings to other people, settings, or...

  1. Mobile IPTV: Implications for Education

    Pannee Suanpang

    2013-01-01

    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 dem...

  2. HUMAN INTERACTION WITH MOBILE APPLICATIONS

    Alin Zamfiroiu; Emanuel Herteliu; Bogdan Vintila

    2012-01-01

    Computing - human interaction is a very important paradigm because informatics applications are created to be used by people via human interaction. Nowadays mobile applications are more used so is necessarily to talk about mobile - human interaction. In this paper types of mobile devices are presented. Citizen oriented character of mobile application and his utility are described. Different means of interactions with mobile devices are analyzed and in the end of the paper direction of mobile ...

  3. Validation of the Seating and Mobility Script Concordance Test

    Cohen, Laura J.; Fitzgerald, Shirley G.; Lane, Suzanne; Boninger, Michael L.; Minkel, Jean; McCue, Michael

    2009-01-01

    The purpose of this study was to develop the scoring system for the Seating and Mobility Script Concordance Test (SMSCT), obtain and appraise internal and external structure evidence, and assess the validity of the SMSCT. The SMSCT purpose is to provide a method for testing knowledge of seating and mobility prescription. A sample of 106 therapists…

  4. Mobile Phone as Pedagogical Tools: Are Teachers Ready?

    Ismail, Issham; Azizan, Siti Norbaya; Azman, Nizuwan

    2013-01-01

    This study examined the teachers' perceptions on the implementation of mobile learning via mobile phone at schools. The sample for this study comprised thirty eight teachers who were teaching Information Technology (IT) subjects from various primary schools in Penang, Malaysia. A quantitative survey was administered to the respondents whereby…

  5. Client Mobile Software Design Principles for Mobile Learning Systems

    Qing Tan

    2009-01-01

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

  6. Cooperative Mobile Web Browsing

    Zhang Q

    2009-01-01

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

  7. Mobile Sensing Systems

    Elsa Macias

    2013-12-01

    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.

  8. Mobile sensing systems.

    Macias, Elsa; Suarez, Alvaro; Lloret, Jaime

    2013-01-01

    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

  9. Mobile and contextual learning

    Agnes Kukulska-Hulme

    2009-12-01

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

  10. Editorial: Mobile (March 2010

    Thomas Kunz

    2010-02-01

    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.

  11. Mobility Experiences of Adolescents with Cerebral Palsy

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

    2009-01-01

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

  12. Mobile radio channels

    Pätzold, Matthias

    2011-01-01

    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

  13. Windows Azure mobile services

    Johnson, Bruce

    2013-01-01

    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

  14. Mobile Game Probes

    Borup Lynggaard, Aviaja

    2006-01-01

    This paper will examine how probes can be useful for game designers in the preliminary phases of a design process. The work is based upon a case study concerning pervasive mobile phone games where Mobile Game Probes have emerged from the project. The new probes are aimed towards a specific target...... group and the goal is to specify the probes so they will cover the most relevant areas for our project. The Mobile Game Probes generated many interesting results and new issues occurred, since the probes came to be dynamic and favorable for the process in new ways....

  15. Mobile networks architecture

    Perez, Andre

    2013-01-01

    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

  16. Anonymous Mobile Payment Solution

    Alhaj Ali Jalila

    2015-09-01

    Full Text Available The evolution and increasing popularity of mobile handheld devices has led to the development of payment applications. The global acceptance of mobile payments is hindered by security and privacy concerns. One of the main problems evoked is the anonymity related with banking transactions. In this paper I propose a new secured architecture for mobile banking. Anonymity and privacy protection are the measures to be enhanced in order to satisfy people’s current needs. The banking platform must provide the highest level of security for messages exchanged between bank and the customer.

  17. Mobile communication and intermediality

    Helles, Rasmus

    2013-01-01

    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...

  18. Erokovnik mobile application

    Barlič, Gregor

    2009-01-01

    The object of this dissertation is to describe a mobile application eRokovnik for managing different types of events. The application is primarily intended for modern mobile phones and as such allows to effectively monitor all functions and other events by user. The user has a transparent, simple and efficient user interface for easy management of data. Data is stored in the database on your mobile device locally. A backup copy of saved data can be made on user request using the integrate...

  19. Mobile Context Toolbox

    Stopczynski, Arkadiusz; Larsen, Jakob Eg; Skomail, Lukasz

    2010-01-01

    In this paper we describe an open framework utilizing sensors and application data on the Maemo mobile platform enabling rapid prototyping of context-aware mobile applications. The framework has an extensible layered architecture allowing new hardware and software sensors and features to be added...... to the context framework. We present initial results from in-the-wild experiments where contextual data was acquired using the tool. In the experiments 6 participants were using a Nokia N900 mobile phone continuously with a logger application for an average of 33 days. The study has provided valuable...

  20. Mobility of Hellenistic women

    Loman, Pasi

    2004-01-01

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

  1. Mobile Context Toolbox

    Stopczynski, Arkadiusz; Larsen, Jakob Eg; Skomail, Lukasz

    2010-01-01

    In this paper we describe an open framework utilizing sensors and application data on the Maemo mobile platform enabling rapid prototyping of context-aware mobile applications. The framework has an extensible layered architecture allowing new hardware and software sensors and features to be added...... to the context framework. We present initial results from in-the-wild experiments where contextual data was acquired using the tool. In the experiments 6 participants were using a Nokia N900 mobile phone continuously with a logger application for an average of 33 days. The study has provided valuable insights...

  2. Abrechnung mobiler Mehrwertdienste

    Pousttchi, Key

    2003-01-01

    The availability of appropriate payment functionality is an important condition for business profit of mobile commerce supply in B2C context. Value-added services are the most important subset of B2C mobile commerce and consist of a combination of content and data transfer. The payment occurs via bill of telecommunication services by the mobile network operator (MNO). If the content is not provided by the MNO but by a third party (content provider) a revenue sharing is necessary. There are th...

  3. Data mining mobile devices

    Mena, Jesus

    2013-01-01

    With today's consumers spending more time on their mobiles than on their PCs, new methods of empirical stochastic modeling have emerged that can provide marketers with detailed information about the products, content, and services their customers desire.Data Mining Mobile Devices defines the collection of machine-sensed environmental data pertaining to human social behavior. It explains how the integration of data mining and machine learning can enable the modeling of conversation context, proximity sensing, and geospatial location throughout large communities of mobile users

  4. Explaining mobile commerce services adoption by different type of customers

    Francisco J. Molina-Castillo

    2008-12-01

    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

  5. Mobile phone based SCADA for industrial automation.

    Ozdemir, Engin; Karacor, Mevlut

    2006-01-01

    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

  6. Sampling Development

    Adolph, Karen E.; Robinson, Scott R.

    2011-01-01

    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...

  7. Mobile Internet: Politics of Mobile Code and Networks

    L. Mosemghvdlishvili (Lela)

    2015-01-01

    markdownabstract__Abstract__ The term mobile internet refers to accessing the internet through (cellular) mobile devices and represents the convergence of mobile telephony, internet services, and personal computing. Whereas iMode (mobile internet and data services) was introduced in Japan as long a

  8. Making Daily Mobility

    Jensen, Ole B.; Wind, Simon

    , social networks, understanding of places and ultimately ourselves and others. To successfully accomplish everyday life, households have to cope with large number of different activities and mobility in relation to their children, work, social life, obligations, expectations, needs and wishes. Drawing on...... mobilities theory (Urry 2007; Larsen et al. 2006) and practice theory (Schatzki 2001; Reckwitz 2002; Shove et al. 2012) this paper seeks to unfold a theoretical framework for understanding of the household’s mobility coping strategies and how these strategies are actualised and materialised into mobility...... Denmark as well as seven days of GPS trackings of each family member. The paper unpacks how the household member’s daily practices are more than individual accomplishments carried out in isolation, but coordinated and performed in relation to other members. Drawing on practice theory, the daily practices...

  9. jQuery Mobile

    Reid, Jon

    2011-01-01

    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

  10. Intergenerational earnings mobilities

    Hussain, Azhar; Munk, Martin D.; Bonke, Jens

    This article gives various estimates of intergenerational earnings mobility by applying different earning periods, age brackets, and earning components. The methodology enables us to investigate how sensitive results are to different delimitations and, thereby, to make more accurate international...

  11. Persuasive Mobile Health Applications

    Garcia Wylie, Carlos; Coulton, Paul

    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.

  12. Mobile Learning Applications Audit

    Paul POCATILU

    2010-01-01

    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.

  13. Pervasive and mobile computing

    Conti, Marco

    2005-01-01

    The Pervasive and Mobile Computing Journal (PMC) is a professional, peer-reviewed journal that publishes high-quality scientific articles (both theory and practice) covering all aspects of pervasive computing and communications.

  14. PUBLIC SAFETY MOBILE BROADBAND

    Ferrús Ferré, Ramón Antonio; Pisz, Rafal; Sallent Roig, José Oriol; Baldini, Gianmarco

    2013-01-01

    Wireless communications are critical to supporting the operational capabilities of public protection and disaster relief (PPDR) organizations. The private/professional mobile radio (PMR) technologies currently used for PPDR communications offer a rich set of voice-centric services [e.g., push-to-talk (PTT) group calls] but have very limited data transmission capabilities and are unable to cope with increasing demands in the PPDR community for mobile data-centric applications. Introducing PPDR...

  15. Finnish Mobile Gaming Cluster

    Masira, Elijah; Chowdhury, Nafis Ahmed

    2014-01-01

    Abstract The Finnish mobile gaming cluster is one of the most promising industries that have been growing significantly in the past few years to become a substantial cultural export product / service of Finland. The main objective of this research was to gain a persuasive understanding about the emergence of the mobile gaming cluster in Finland and explore the factors behind its success. The literature review centers on M. E Porter’s publications on competitiveness and other publication...

  16. Capital mobility. An overview

    Arndt, H. W.

    2000-01-01

    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; (i...

  17. Mobile-Phone Microscopes

    程杰

    2008-01-01

    Simple accessories could turn mobile phones into useful medical devices Robi Marrmari stares intently at the screen of his mobile phone.The student is not squinting to tap out yet another daft text message,but looking carefully for the faint blue dots that are the tell-tale diagnostic signature of malaria.Mr.Maamari is a member of a research team led by Dan Fletcher,a professor of bioengineering

  18. Indigenization of Urban Mobility

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

    2014-01-01

    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 algorith...

  19. Mobile media and children

    Haddon, L.

    2013-01-01

    This article explores a range of research issues relating to children and mobile media, including the potential growth of children’s screen time, the regulation of children’s use of these media, the challenge of managing increasing media options, effects on children’s perception of time, problems posed for parental surveillance and the domestication of mobile media within peer groups. All of these are viewed in the context of broader societal change, evolving norms of childhood and parenthood...

  20. Towards mobile collaborative exergaming

    Gorgu, Levent; O'Hare, G. M. P. (Greg M. P.); O'Grady, Michael J.

    2009-01-01

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

  1. Chapter 4: Mobility Support

    Barceló Arroyo, Francisco; Aguayo-Torres, M.C.; Al Begain, K.; Martín Escalona, Israel; Vassilou, V.

    2009-01-01

    Wireless access allows independency between the user’s position and the physical bearer used to access services from the network. However, this independency does not imply that wireless networks show a full ability to cope with any degree of mobility. This is because other constraints can limit the mobility when accessing the network. The main constraints are registration and addressing (e.g., of user, terminal, application) and handover. In general, procedures needed to cope with those issue...

  2. Brave New Mobile World

    Maya; Reid

    2011-01-01

    An oral history of the mobile app boom in East Africa APPS are taking East Africa by storm.As mobile phone penetration rates increase,technologists and software developers in the region are scrambling to provide bigger and better services for an evergrowing consumer base. At the center of this flurry of activity is Nairobi,Kenya. But Dar Es Salaam in Tanzania and Uganda’s

  3. Adaptive Mobile Work Processes

    Hauso, Frode; Røed, Øivind

    2005-01-01

    Systems that efficiently provide support for adaptive work processes in a mobile environment do not exist according to our knowledge. Such systems would increase efficiency and safety in environments where work is inherently mobile, ad-hoc, and requires input from a set of heterogeneous sources. Traditional work support systems are normally not capable of dynamic change and plans must be made before work is started. This conflicts with most work processes, which are dynamic and where plans ca...

  4. Mobile Augmented Reality Applications

    Prochazka, David; Stencl, Michael; Popelka, Ondrej; Stastny, Jiri

    2011-01-01

    Augmented reality have undergone considerable improvement in past years. Many special techniques and hardware devices were developed, but the crucial breakthrough came with the spread of intelligent mobile phones. This enabled mass spread of augmented reality applications. However mobile devices have limited hardware capabilities, which narrows down the methods usable for scene analysis. In this article we propose an augmented reality application which is using cloud computing to enable using...

  5. REST based mobile applications

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

    2008-02-01

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

  6. Mobile Phone on Campus

    周成

    2005-01-01

    Communication revolution has brought a great convenience to modem society and people. Especially, the occurrence of mobile phone, in away, has changed the world where we live. Maybe the mobile phone was a luxury for only a decade ago. Now, it is no exaggeration4 to say that the difference between the parts and the present is as vast as that between earth and heaven. With no exception6, campus students also fall into the category called “cell-phone school”.

  7. Mobile Intelligent Autonomous Systems

    Jitendra R. Raol; Ajith Gopal

    2010-01-01

    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) ve...

  8. Mobile Learning Practice In Higher Education in Nepal

    Krishna Prasad Parajuli

    2016-03-01

    Full Text Available During the 15 years of this current century, mobile technology has become a leading technology in the support of educational outcomes. This study investigated the mobile learning practices among undergraduates in higher education in the semi-urban and rural areas of the Gorkha district of Nepal. The objectives were to explore the availability of mobile technology for learning; its costs; learning trends, institutional policies, and attitudes towards mobile learning. These factors were explored to identify implications for pedagogical practice. The study adopted a mixed methods design, in which the quantitative data were collected by using a questionnaire with a sample of 161 undergraduates from six campuses. The qualitative data were collected from 19 purposively selected respondents by the way of semi-structured interviews. The result indicated that virtually all undergraduates possessed their mobile phones and used them informally for learning both inside and outside of their classes. The majority of the students had positive attitudes towards mobile learning. However, many were not satisfied with the effectiveness of their practices or with the level of institutional support for using mobile devices to support their learning. Although comprehensive mobile learning is not widespread in Nepal, enriching conventional learning by the incremental use of mobile devices is possible in Nepalese institutes of higher education. I conclude that teachers and institutions should provide guidance to students about the effective uses of mobile technology because successful use of technology in learning largely depends on appropriate pedagogy and teacher support.

  9. Sampling Development

    Adolph, Karen E.; Robinson, Scott R.

    2011-01-01

    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…

  10. Language sampling

    Rijkhoff, Jan; Bakker, Dik

    1998-01-01

    This article has two aims: [1] to present a revised version of the sampling method that was originally proposed in 1993 by Rijkhoff, Bakker, Hengeveld and Kahrel, and [2] to discuss a number of other approaches to language sampling in the light of our own method. We will also demonstrate how our...

  11. Mobile Apps and Romanian Mobile Devices Users’ Preferences

    Mihaela Filofteia TUTUNEA

    2014-01-01

    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 ...

  12. Communication models in mobile computing systems and mobile agents

    Tufekcioglu, Refik

    2000-01-01

    This thesis study covers wired and wireless mobile computing environments, introduces the components of the mobile environment, discusses the constraints of mobility, and contains a taxonomy of the current techniques/ models that reduce the overheads associated with wireless mobile communication. One of the goals of this thesis study was to identify and define communication techniques and models that are used by mobile computing systems to minimize wireless communication cost. The following c...

  13. How mobility increases mobile cloud computing processing capacity

    Nguyen, Anh-Dung; Sénac, Patrick; Ramiro, Victor; Diaz, Michel

    2011-01-01

    In this paper, we address a important and still unanswered question in mobile cloud computing ``how mobility impacts the distributed processing power of network and computing clouds formed from mobile ad-hoc networks ?''. Indeed, mobile ad-hoc networks potentially offer an aggregate cloud of resources delivering collectively processing, storage and networking resources. We demonstrate that the mobility can increase significantly the performances of distributed computation in such networks. In...

  14. Compatibility Heuristics for Modern Mobile Games : Mobile games, Game testing.

    Gitau, Paul

    2010-01-01

    The purpose of this study was to demonstrate ways to perform a compatibility test for a modern mobile game. These tests were performed by running a tastephone midlet to the mobile handset to determine its characteristics and the equivalent implementation. Compatibility check test was also aimed to help a specified mobile game application to run successfully into a mobile phone. Compatibility heuristics for modern mobile games was also designed to study the factors that shoul...

  15. Telemedicine Based on Mobile Devices and Mobile Cloud Computing

    Lidong Wang; Cheryl Ann Alexander

    2014-01-01

    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 smartphon...

  16. Sensor Mobility Control for Multitarget Tracking in Mobile Sensor Networks

    Yinfei Fu; Le Yang

    2014-01-01

    In emerging tracking systems using mobile wireless sensor networks, sensor mobility management is essential for balancing the tracking performance and costs under limited network resources and sensor movements. This paper considers the sensor mobility control problem for multitarget tracking (MTT), in which multiple mobile sensors are dynamically grouped and moved to track multiple targets and collaborate within each sensor group via track data fusion. A novel sensor mobility control framewor...

  17. INTERNET MOBILE USERS FROM ROMANIA AND MOBILE APPS

    MIHAELA TUTUNEA

    2011-01-01

    The development of mobile technologies triggered also the development of the software industry for mobile devices. Any mobile phone, depending on its features, has preinstalled basic applications, which make it functional. Along these, the user can install more applications according to his needs. Must be noticed the current trend: companies developing and offering their own mobile applications, which can be downloaded directly from the mobile websites. The present study tries to identify the...

  18. Rapid Determination of Silver, Tin, Boron,Molybdenum and Lead in Geochemical Samples by AC Arc Direct-Reading Spectrometry%交流电弧直读光谱法快速测定地球化学样品中的银、锡、硼、钼、铅

    张文华; 王彦东; 吴冬梅; 赵燕秋; 付国余; 常伟

    2013-01-01

    采用国内首创的交流电弧直读光谱仪,以交流电弧为激发光源、凹面光栅分光、光电倍增管接收、智能测控系统快速数据采集及处理,可取代传统1米或2米光栅摄谱仪的相板记录方式及洗相、译谱等繁琐的操作程序.在优化的实验条件下,对粉末状地球化学样品中的银、锡、硼、钼、铅,进行交流电弧直读光谱法测定,检出限分别为0.012,0.24,1.65,0.20,1.30μg/g,精密度和准确度均可满足行业规范的要求,其测定值与ICP-MS和ICP-AES的分析结果相符.

  19. Environmental sampling

    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

  20. Sencha Touch Mobile JavaScript Framework

    Rao, SSVV Narasimha

    2012-01-01

    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

  1. Aero particles characterization emitted by mobile sources

    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)

  2. Interactive TV meets Mobile Computing

    Rauschenbach, Uwe

    2005-01-01

    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.

  3. Mobile library services best practices

    Harmon, Charles

    2013-01-01

    Mobile Library Services provides 11 proven ways to reach out to mobile users and increase your library's relevance to their day-to-day lives. Librarians detail how they created mobile apps to how they went mobile on a shoestring budget. Written by public, academic, and special librarians, these 11 best practices offer models for libraries of every type and size.

  4. Mobility decline in old age

    Rantakokko, Merja; Mänty, Minna; Rantanen, Taina

    2013-01-01

    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.

  5. Mastering jQuery mobile

    Lambert, Chip

    2015-01-01

    You've started down the path of jQuery Mobile, now begin mastering some of jQuery Mobile's higher level topics. Go beyond jQuery Mobile's documentation and master one of the hottest mobile technologies out there. Previous JavaScript and PHP experience can help you get the most out of this book.

  6. Mobile medical image retrieval

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

    2011-03-01

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

  7. Barcode Payment System in Trusted Mobile Devices

    Vibha Kaw Raina

    2012-01-01

    Mobile payment is an application of mobile commerce which facilitates mobile commerce transactions by providing the mobile customer with a convenient means to pay. Many mobile payment methods have been proposed and implemented like user friendly, customer centric, merchant centric where security concerns are highly addressed. This paper proposes a mobile payment model with barcodes for mobile users to improve mobile user experience in mobile payment. Unlike other existing mobile payment syste...

  8. Mobility Network and Safety

    Adriana Galderisi

    2010-04-01

    Full Text Available Mobility network is crucial for ensuring territorial safety with respect to natural and technological hazards. They represent a basic support to community’s everyday life although being exposed elements often characterized by high vulnerability to different hazards and, in the meanwhile, strategic equipments for emergency management. Physical damages or the lack in functioning of those networks may greatly increase the loss of human lives caused by hazardous events as well as produce relevant economic damages at medium and long term. Although the relevance of the mobility networks in assuring territorial safety is at present largely recognized, risk analyses have been long focused on buildings’ vulnerability or, even where they have paid attention to mobility network, they have been mainly focused on the physical damages that a given hazard could may induce on individual elements of such network. It is recent the awareness that mobility network represents a system, characterized by relevant interdependences both among its elements and among network infrastructures and urban systems. Based on these assumptions, this paper points out the heterogeneous aspects of the mobility network vulnerability and their relevance in increasing the overall territorial or urban vulnerability to hazardous events. Therefore, an in-depth investigation of the concept of mobility network vulnerability is provided, in order to highlight the aspects mostly investigated and more recent research perspectives. Finally, a case study in the Campania Region is presented in order to point out how traditional risk analyses, generally referred to individual hazards, can sometimes led to invest in the mobility network improvement or development which, targeted to increase the security of a territory result, on the opposite, in an increase of the territorial vulnerability.

  9. Presence experience in mobile gaming

    Laarni, Jari

    2005-01-01

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

  10. Mobile concrete factory profiability analysis

    Bajželj, Grega

    2009-01-01

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

  11. Energy Efficient Mobile Operating Systems

    Muhammad Waseem

    2013-01-01

    Energy is an important resource in mobile computers now days. It is important to manage energy in efficient manner so that energy consumption will be reduced. Developers of operating system decided to increase the battery life time of mobile phones at operating system level. So, design of energy efficient mobile operating system is the best way to reduce the energy consumption in mobile devices. In this paper, currently used energy efficient mobile operating system is discussed and compared. ...

  12. Stackable differential mobility analyzer for aerosol measurement

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

    2007-05-08

    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.

  13. Mobile Apps and Romanian Mobile Devices Users’ Preferences

    Mihaela Filofteia TUTUNEA

    2014-10-01

    Full Text Available 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 and their users, on the other hand, includes a study regarding Romanian users of mobile devices in order to identify the types of applications usually employed in mobile activities, the time dedicated to these activities, the number of downloaded applications and their cost levels. We consider that the results of this study may be useful to mobile app users and developers, and mobile device providers.

  14. Mobile Communication Evolution

    Kuboye Bamidele Moses

    2014-01-01

    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.

  15. Mobile systems capability plan

    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

  16. Compatibility Heuristics for Modern Mobile games. : Mobile games.Mobile Game testing

    Gitau, Paul

    2010-01-01

    The purpose of this study was to demonstrate ways to perform a compatibility test for a modern mobile game. These tests were performed by running a tastephone midlet to the mobile handset to determine its characteristics and the equivalent implementation.Compatibility check test was also aimed to help a specified mobile game application to run successfully into a mobile phone. Compatibility heuristics for modern mobile games was also designed to study the factors that should be considered...

  17. Estimating intergenerational schooling mobility on censored samples: consequences and remedies

    M. de Haan; E. Plug

    2011-01-01

    In this paper we estimate the impact of parental schooling on child schooling, focus on the problem that children who are still in school constitute censored observations, and evaluate three solutions to it: replacement of observed with expected years of schooling, maximum likelihood approach, and e

  18. Intelligent mobile security systems

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

  19. Mobile systems development

    Pedersen, Ole; Kristiansen, Martin Lund; Kammersgaard, Marc N.;

    2007-01-01

    components whenever possible. Test regularly oil real devices, since the difference between emulators and real devices are significant. Take advantage of spikes. Do not use pair programming when spiking, and remember to write unit tests for production code that was initially created during spikes. Monitor......Development of mobile software is Surrounded by much uncertainty. Immature software platforms on mobile clients, a highly competitive market calling for innovation, efficiency and effectiveness in the development life cycle, and lacking end-user adoption are just some of the realities facing...... in XP. In general, we find XP well-suited for mobile systems development projects. However, based on our experiences and an analytical comparison we propose the following modifications to XP: Make an essential design to avoid the worst time waste during refactoring. For faster development, reuse code...

  20. Mobile Phone Terminal

    1978-01-01

    In the photo, an employee of a real estate firm is contacting his office by means of HICOM, an advanced central terminal for mobile telephones. Developed by the Orlando Division of Martin Marietta Aerospace, Orlando, Florida, and manufactured by Harris Corporation's RF Division, Rochester, N.Y., HICOM upgrades service to users, provides better system management to telephone companies, and makes more efficient use of available mobile telephone channels through a computerized central control terminal. The real estate man, for example, was able to dial his office and he could also have direct-dialed a long distance number. Mobile phones in most areas not yet served by HICOM require an operator's assistance for both local and long distance calls. HICOM improves system management by automatically recording information on all calls for accurate billing, running continual performance checks on its own operation, and reporting any malfunctions to a central office.

  1. Mobile Probing and Probes

    Duvaa, Uffe; Ørngreen, Rikke; Weinkouff Mathiasen, Anne-Gitte;

    2013-01-01

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

  2. Mobile Probing and Probes

    Duvaa, Uffe; Ørngreen, Rikke; Weinkouff, Anne-Gitte;

    2012-01-01

    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...

  3. Are mobile phones harmful?

    Blettner, M; Berg, Gabriele

    2000-01-01

    in cells. Implications of these experimental results on public health concerns are yet unclear. Few epidemiological studies 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......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...

  4. Collaborative Mobile Charging and Coverage

    吴杰

    2014-01-01

    Wireless energy charging using mobile vehicles has been a viable research topic recently in the area of wireless networks and mobile computing. This paper gives a short survey of recent research conducted in our research group in the area of collaborative mobile charging. In collaborative mobile charging, multiple mobile chargers work together to accomplish a given set of ob jectives. These ob jectives include charging sensors at different frequencies with a minimum number of mobile chargers and reaching the farthest sensor for a given set of mobile chargers, subject to various constraints, including speed and energy limits of mobile chargers. Through the process of problem formulation, solution construction, and future work extension for problems related to collaborative mobile charging and coverage, we present three principles for good practice in conducting research. These principles can potentially be used for assisting graduate students in selecting a research problem for a term project, which can eventually be expanded to a thesis/dissertation topic.

  5. Entropy-Based Privacy against Profiling of User Mobility

    Alicia Rodriguez-Carrion

    2015-06-01

    Full Text Available Location-based services (LBSs flood mobile phones nowadays, but their use poses an evident privacy risk. The locations accompanying the LBS queries can be exploited by the LBS provider to build the user profile of visited locations, which might disclose sensitive data, such as work or home locations. The classic concept of entropy is widely used to evaluate privacy in these scenarios, where the information is represented as a sequence of independent samples of categorized data. However, since the LBS queries might be sent very frequently, location profiles can be improved by adding temporal dependencies, thus becoming mobility profiles, where location samples are not independent anymore and might disclose the user’s mobility patterns. Since the time dimension is factored in, the classic entropy concept falls short of evaluating the real privacy level, which depends also on the time component. Therefore, we propose to extend the entropy-based privacy metric to the use of the entropy rate to evaluate mobility profiles. Then, two perturbative mechanisms are considered to preserve locations and mobility profiles under gradual utility constraints. We further use the proposed privacy metric and compare it to classic ones to evaluate both synthetic and real mobility profiles when the perturbative methods proposed are applied. The results prove the usefulness of the proposed metric for mobility profiles and the need for tailoring the perturbative methods to the features of mobility profiles in order to improve privacy without completely loosing utility.

  6. 5. Sampling

    The sampling is described for radionuclide X-ray fluorescence analysis. Aerosols are captured with various filter materials whose properties are summed up in the table. Fine dispersed solid and liquid particles and gaseous admixtures may be captured by bubbling air through a suitable absorption solution. The concentration of small amounts of impurities from large volumes of air is done by adsorbing impurities on surfactants, e.g., activated charcoal, silica gel, etc. Aerosols may be captured using an electrostatic precipitator and aerosol fractions may be separated with a cascade impactor. Water sampling differs by the water source, i.e., ground water, surface water, rain or waste water. Soil samples are taken by probes. (ES)

  7. Mobile Media Photography

    Svabo, Connie; Shanks, Michael

    2013-01-01

    Mobile media photography marks a shift in orientation from the image towards photography as a mode of engagement. This leads is to explore the processes of experience and documentation that mobile media help to constitute. We unfold two aspects of the process of photography: photography as temporal......, archaeological engagement, and photography as spatial, geographical engagement. Finally, as a closing perspective we point out that vernacular photography may be read as an intersection between a personal means of expression and corporate financial interest....

  8. Nokia and mobile gaming

    Martini, Robert

    2007-01-01

    This paper investigates the game market segments, size, and growth. Nokia’s participation in this market with its N-Gage product and N-Gage platform is examined in detail. Following is an industry analysis that produces a summary of the types of forces that affect Nokia’s ability to operate in this market. The value chain investigation looks at the inputs that make up the mobile game market and how Nokia uses these inputs to bring mobile gaming to the target market. The first recommendation f...

  9. Lazy Mobile Intruders

    Mödersheim, Sebastian Alexander; Nielson, Flemming; Nielson, Hanne Riis

    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......, since it provides a small, abstract formalism that models the essence of mobile code. We provide a decision procedure for 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...

  10. Learning to Be Mobile

    McIlvenny, Paul

    As an antidote to the fixation with automobility, cycling and other such highly mobile ‘carbon neutral’ leisure activities are the focus of recent studies that use mobile ‘travelling with’ methods such as the ‘ride along’ or headcam POV video technology with post-ride debriefing. Much of this...... creative cyclomobility research focuses on adult cycling or more extreme sports, such as BMX trials or mountain biking. There is, however, little qualitative research to date on family bike rides, eg. how children learn to sit in or ride a bike and how parents or caregivers talk and interact with children...

  11. Segway robotic mobility platform

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

    2004-12-01

    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.

  12. Mobile Probing Kit

    Larsen, Jakob Eg; Sørensen, Lene Tolstrup; Sørensen, J.K.;

    2007-01-01

    Mobile Probing Kit is a low tech and low cost methodology for obtaining inspiration and insights into user needs, requirements and ideas in the early phases of a system's development process. The methodology is developed to identify user needs, requirements and ideas among knowledge workers...... characterized as being highly nomadic and thus potential users of mobile and ubiquitous technologies. The methodology has been applied in the 1ST MAGNET Beyond project in order to obtain user needs and requirements in the process of developing pilot services. We report on the initial findings from applying this...

  13. Lazy Mobile Intruders

    Mödersheim, Sebastian Alexander; Nielson, Flemming; Nielson, Hanne Riis

    2013-01-01

    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...... a small, abstract formalism that models the essence of mobile code. We provide a decision procedure for 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....

  14. Lazy Mobile Intruders

    Mödersheim, Sebastian Alexander; Nielson, Flemming; Nielson, Hanne Riis

    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...... a small, abstract formalism that models the essence of mobile code. We provide a decision procedure for security against arbitrary intruder ambients when the honest ambients can only perform a bounded number of steps and without path constraints in communication....

  15. Mobile Collaborative Learning

    Bye, Gunhild Griff

    2008-01-01

    Mobile technology is a well-known part of life for the most children and adults in Norway today. Over the last several years, a lot of research has been done to improve this technology and it seems like a mobile collaborative learning system can be an important tool for learning in the future. By using ubiquitous computing and context-aware computing, the technologies are integrated into the environment and enable the user to move around and learn in a natural environment. This leads to many ...

  16. Mobile network maintenance (GSM)

    IT Department

    2009-01-01

    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

  17. Autonomous mobile robot teams

    Agah, Arvin; Bekey, George A.

    1994-01-01

    This paper describes autonomous mobile robot teams performing tasks in unstructured environments. The behavior and the intelligence of the group is distributed, and the system does not include a central command base or leader. The novel concept of the Tropism-Based Cognitive Architecture is introduced, which is used by the robots in order to produce behavior transforming their sensory information to proper action. The results of a number of simulation experiments are presented. These experiments include worlds where the robot teams must locate, decompose, and gather objects, and defend themselves against hostile predators, while navigating around stationary and mobile obstacles.

  18. Professional mobile application development

    McWherter, Jeff

    2012-01-01

    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

  19. Mobile Augmented Reality Applications

    Prochazka, David; Popelka, Ondrej; Stastny, Jiri

    2011-01-01

    Augmented reality have undergone considerable improvement in past years. Many special techniques and hardware devices were developed, but the crucial breakthrough came with the spread of intelligent mobile phones. This enabled mass spread of augmented reality applications. However mobile devices have limited hardware capabilities, which narrows down the methods usable for scene analysis. In this article we propose an augmented reality application which is using cloud computing to enable using of more complex computational methods such as neural networks. Our goal is to create an affordable augmented reality application suitable which will help car designers in by 'virtualizing' car modifications.

  20. Profiling the Mobile Customer

    Jessen, Pernille Wegener; King, Nancy J.

    2010-01-01

    Mobile customers are increasingly being tracked and profiled by behavioural advertisers to enhance delivery of personalized advertising. This type of profiling relies on automated processes that mine databases containing personally-identifying or anonymous consumer data, and it raises a host of...... significant concerns about privacy and data protection. This second article in a two part series on "Profiling the Mobile Customer" explores how to best protect consumers' privacy and personal data through available mechanisms that include industry self-regulation, privacy-enhancing technologies and...

  1. Mobile Computing Trends in Saudi Arabia: An Exploratory Study

    Mutlaq B. Alotaibi

    2014-12-01

    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.

  2. SMS advertisements\\\\\\' adoption among Tehran mobile users

    Manizheh Haghighinasab

    2014-05-01

    Full Text Available Mobile marketing and SMS (short message services advertising in particular, have been recently used. Even though SMS-based advertising is inexpensive, interactive, and able to yield a high response rate, middle or big size companies do not use it in Iran. For as much as its adoption was unclear, this study was organized to find it out. Since the most populated city in our country, Tehran, is a good multicultural instance to study in many fields, this research has aimed at its citizens' intention to use SMS advertisement. The statistical populations included are mobile users, who came to Mobile Customer Service located in north, south, west, east and centre of Tehran. From which 384 were considered as samples. Technology Acceptance Model (TAM was used for making hypothesizes. Survey's data was collected by questionnaire with cluster and random sampling. Collected data was analyzed regarding to the method: Structural Equation Modeling (SEM in order to do which, the technique Partial List Squares (PLS were used. The results revealed that: despite the lack of adoption for the SMS advertising among mobile users in Tehran, there could be chances to improve it by better perceived usefulness as well as its ease of use. Innovativeness of the people and their trust has indirect impact on their intention to use. Moreover, getting prior permission, making a profile, and individualizing the context with richness of information and entertainers are recommended. Using the new generation 3G and shortcuts will be able to improve SMS advertisement's adoption as well.

  3. Instant XenMobile MDM

    Lakhani, Aamir

    2013-01-01

    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.

  4. Distributed Mobility Management Scheme for Mobile IPv6

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

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

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

    Braun, Peter

    2005-01-01

    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...

  6. Mobile Service Platform: A Middleware for Nomadic Mobile Service Provisioning

    Halteren, van A.T.; Pawar, P.

    2006-01-01

    Nowadays mobile devices are characterized by higher processing power, lower costs, multiple network interfaces, ability to support multiple auxiliary devices and connect to the Internet using a wireless network. The applications collecting statistics concerning the mobile user, computational and com

  7. Occupational Experience, Mobility, and Wages

    Groes, Fane

    In this paper we present how occupational tenure relates to wage growth and occupational mobility in Danish data. We show that the Danish data produces qualitatively similar results as found in U.S. data with respect to an increase in average wages when experience in an occupation increases. In a...... sample of full time private employed, the first five years of experience in an occupation increases average wages with 8% to 15%, conditional on rm and industry tenure. We further show that the probability of switching occupation declines with experience in the occupation and that the declining hazard...... also is true for workers switching occupation and rm. After ve years of experience in an occupation the average probability of switching any type of occupation, including occupation and rm switches, has fallen from 25% to 12%....

  8. Mobility Prediction Based Neighborhood Discovery for Mobile Ad Hoc Networks

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

    2010-01-01

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

  9. Mobility Prediction Based Neighborhood Discovery in Mobile Ad Hoc Networks.

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

    2011-01-01

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

  10. Mobility report 2009

    2009-01-01

    Mobility in the Netherlands continues to increase, although less sharply than in the 1980s and 1990s. From 2000 to 2008, the number of kilometres travelled by car rose by 10 percent, while during the same time period, air travel grew much more rapidly at a rate of 21 percent. Similarly, freight tran

  11. When Mobility Disrupts Learning

    Smith, Jean Louise M.; Fien, Hank; Paine, Stan C.

    2008-01-01

    Student mobility is a common phenomenon that disproportionately affects students in high-poverty schools. Research shows that students who move repeatedly are likely to fall behind in reading and other academic areas. This article reviews proactive strategies that high-poverty districts and schools are using to reduce the harmful effects of…

  12. Gridless overtone mobility spectrometry.

    Zucker, Steven M; Ewing, Michael A; Clemmer, David E

    2013-11-01

    A novel overtone mobility spectrometry (OMS) instrument utilizing a gridless elimination mechanism and cooperative radio frequency confinement is described. The gridless elimination region uses a set of mobility-discriminating radial electric fields that are designed so that the frequency of field application results in selective transmission and elimination of ions. To neutralize ions with mobilities that do not match the field application frequency, active elimination regions radially defocus ions toward the lens walls. Concomitantly, a lens-dependent radio frequency waveform is applied to the transmission regions of the drift tube resulting in radial confinement for mobility-matched ions. Compared with prior techniques, which use many grids for ion elimination, the new gridless configuration substantially reduces indiscriminate ion losses. A description of the apparatus and elimination process, including detailed simulations showing how ions are transmitted and eliminated is presented. A prototype 28 cm long OMS instrument is shown to have a resolving power of 20 and is capable of attomole detection limits of a model peptide (angiotensin I) spiked into a complex mixture (in this case peptides generated from digestion of β-casein with trypsin). PMID:24125033

  13. Social Perspectives on Mobility

    The book demonstrates that mobillity reseacch is a key issue within social enquiry and brings together the latest interdisciplinary theoretivcally approaches with empirical case studies. The book is a result of research from FLUX - Centre of Transport Research at Roskilde University....

  14. Mobile Equipment Expands Inventory.

    McGough, Robert L.; And Others

    1978-01-01

    Describes the Mobile Equipment Modules (MEM) system in Duluth, Minnesota. MEM is a way to hold down costs and increase learning opportunities by consolidating purchases of expensive shop equipment within the school district, grouping the equipment in modules, and scheduling and moving it from school to school as needed. (MF)

  15. Visions of Mobile Learning

    T.H.E. Journal, 2011

    2011-01-01

    It is almost a foregone conclusion that the mobile device will become an indispensable tool for learning in the future. That's why "T.H.E. Journal" asked a number of educators to let their imaginations go wild and conjure up visions of the future of the device in the classroom. This paper presents the views of educators who conjure up the mobile…

  16. Brave New Mobile World

    Maya Reid

    2011-01-01

    APPS are taking East Africa by storm.As mobile phone penetration rates increase,technologisis and software developers in the provide bigger and better services for an evergrowing consumer base.At the center of this flurry of activity is Nairobi,Kenya.But Dar Es Salaam in Tanzania and Uganda's Kampala may not be far behind.

  17. Mobile Applications for Extension

    Drill, Sabrina L.

    2012-01-01

    Mobile computing devices (smart phones, tablets, etc.) are rapidly becoming the dominant means of communication worldwide and are increasingly being used for scientific investigation. This technology can further our Extension mission by increasing our power for data collection, information dissemination, and informed decision-making. Mobile…

  18. Waves and mobile phones

    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.)

  19. To practice mobility

    Winther, Ida Wentzel

    2015-01-01

    aim is to explore mobility as an embodied and emotional practice in which children employ different strategies. I focus on bodily micro practices, routines and coping strategies, the intermediate space that occurs on their continual journeys, and the feeling of being dispensable. It is an ethnographic...

  20. Mobile Learning for All

    Bestwick, Angel; Campbell, John R.

    2010-01-01

    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…

  1. Engaging with mobile methods

    Jensen, Martin Trandberg

    2014-01-01

    engagements with methods are acknowledged to be always political and contextual, reminding us to avoid essentialist discussions regarding research methods. Finally, the chapter draws on recent fieldwork to extend developments in mobilities-oriented tourism research, by employing auto-ethnography to call for a...

  2. Mobility of photosynthetic proteins

    Kaňa, Radek

    2013-01-01

    Roč. 116, 2-3 (2013), s. 465-479. ISSN 0166-8595 R&D Projects: GA ČR GAP501/12/0304; GA MŠk(CZ) ED2.1.00/03.0110 Institutional support: RVO:61388971 Keywords : Photosynthesis * Protein mobility * FRAP Subject RIV: EE - Microbiology, Virology Impact factor: 3.185, year: 2013

  3. Contextualizing mobile IT

    Messeter, Jörn; Brandt, Eva; Halse, Joachim;

    2004-01-01

    Information and communication technologies are moving into the era of ubiquitous computing, with increased density of technology and increased mobility and continuity in use. From a design perspective, addressing the accommodation and coordination of multiple devices and services in situated use ...

  4. Mobile exhibition in Mexico

    Since January this year, a mobile atomic energy exhibition has been touring the principal cities of Mexico. In organizing this exhibition, the National Nuclear Energy Commission of Mexico was assisted by the International Atomic Energy Agency which has placed its second mobile radioisotope laboratory at the disposal of the Mexican authorities. In many States of the Republic, the visit of the mobile laboratory has given a powerful impetus to atomic training and research. Universities have made use of the laboratory for the training of young scientists in the basic isotope techniques. As a sequel to the work initiated with its aid, some universities are planning to start regular training courses in this field. The laboratory, which is a gift to the Agency from the United States, has been put to its first assignment in Mexico. It will shortly be sent to Argentina for a period of six months for use in training courses. IAEA's first mobile radioisotope unit, also donated by the United States, has been used for training purposes in Austria, the Federal Republic of Germany, Greece and Yugoslavia, and has now been sent to the Far East

  5. Mobiler Lernalltag - Erfahrungsbasiert und informell

    Specht, Marcus

    2013-01-01

    Specht, M. (2013, 26 April). Mobiler Lernalltag - Erfahrungsbasiert und informell. Invited talk given at the Speedlab Mobile Learning organized by the Kooperative Berlin und Bundeszentrale für politische Bildung, Hannover, Germany.

  6. EV-GHG Mobile Source

    U.S. Environmental Protection Agency — The EV-GHG Mobile Source Data asset contains measured mobile source GHG emissions summary compliance information on light-duty vehicles, by model, for certification...

  7. Structuring mobile and contextual learning

    Glahn, Christian; Specht, Marcus

    2011-01-01

    Glahn, C., & Specht, M. (2011). Structuring mobile and contextual learning. In Proceedings of the 10th World Conference on Mobile and Contextual Learning (pp. 188-195). October, 18-21, 2011, Beijing, China.

  8. The impact of mobile phones on the performance of university students

    Khan, Jangraiz; Khan Malik, Zilakat; Amin, Suleman

    2014-01-01

    This Paper concentrates on the impact of mobile phones on university students with special reference to University of Peshawar. A sample of 100 students was drawn from different departments of University of Peshawar for this purpose. The study used descriptive and quantitative tools for analysis. The results showed that almost 60% of the students got mobile phones from their parents. 42% of the students keep mobile phones for contacts with friends and society. Out of the sampled students, ...

  9. Labor Mobility and Racial Discrimination

    Deschamps, Pierre; De Sousa, José

    2015-01-01

    This paper assesses the effects of labor mobility constraints on racial discrimination. Our equilibrium search model shows that these effects follow an inverted U-shaped relationship. In particular, when mobility constraints are low, we find that discrimination disappears. We test this prediction with an exogenous mobility shock on the European soccer labor market. The Bosman ruling by the European Court of Justice in 1995 lifted restrictions on soccer player mobility. Using a panel of all cl...

  10. Mobile telephony in the UK

    Armstrong, Mark

    1997-01-01

    This paper discusses aspects of recent policy towards mobile telephony in the U.K., including (i) the level of retail charges for calls from fixed to mobile networks, (ii) the level of call termination charges on mobile networks, and (iii) the level of connection subsidies offered by mobile networks. A formal model of the market is introduced, which offers a direct linkage between call termination rates and the level of connection subsidy. This provides a framework for discussing the ideal ...

  11. Mobile communications data services marketing

    Stanislav Marušić

    2006-01-01

    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 experienc...

  12. Prospects for inclusive mobile learning

    Kukulska-Hulme, Agnes

    2012-01-01

    Mobile learning promises more equitable access to education, especially to those who have suffered exclusion for social or economic reasons. Yet concerns have been raised that mobile technologies also introduce certain problems and barriers. Furthermore, unforeseen technological developments in the mobile marketplace undermine the fragile stability of mobile learning, while it struggles to assert itself as an acceptable innovation within education. This paper examines the concept of inclusive...

  13. Comparison of mobile application frameworks

    Vertovšek, Gergor

    2016-01-01

    We live in a time in which development of mobile devices underwent a major expansion. This expansion is causing a growing demand for mobile application development, with each passing day. Different companies are searching for ways to deliver their sevices and applications, to diffrent mobile platforms, faster and more cost efficient. In recent years, diffrent mobile frameworks started to emerge on the market, due to such demands. These frameworks enable faster and easier application developme...

  14. Mobile botnets taxonomy and challenges

    MALATRAS APOSTOLOS; Freyssinet, Eric; BESLAY Laurent

    2015-01-01

    The proliferation of mobile devices with increased capabilities and the widespread penetration of wireless networks have spurred a convergence of mobile and commodity computing systems. In this respect, botnets have also found their way to the mobile ecosystem, where they exploit characteristics of phones (e.g. linked to user accounts, repositories of private and sensitive information) to have a profound impact on operations and user privacy. We report here on an in-depth taxonomy of mobile b...

  15. Mobile-Assisted Language Learning

    Tayebeh Mosavi Miangah; Amin Nezarat

    2012-01-01

    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...

  16. Tools for income mobility analysis

    Philippe Kerm

    2002-01-01

    A set of Stata routines to help analysis of `income mobility' are presented and illustrated. Income mobility is taken here as the pattern of income change from one time period to another within an income distribution. Multiple approaches have been advocated to assess the magnitude of income mobility. The macros presented provide tools for estimating several measures of income mobility, e.g. the Shorrocks (JET 1978) or King (Econometrica 1983) indices or summary statistics for transition matri...

  17. Mobile awareness: Design for connectedness

    Gargiulo, Eleonora; Ghajargar, Maliheh

    2015-01-01

    This article describes our ongoing research project about design for behavior change, which is facilitated by Ubiquitous Computing technologies. In particular in this paper we discuss the potentiality of mobile devices to facilitate the mobility behavior change among people who are currently living at Turin, Italy. To this aim we illustrate our conceptual design of a mobile game, which is designed to facilitate mobility behavior change

  18. Characteristics of Mobile Payment Procedures

    Kreyer, Nina; Pousttchi, Key; Turowski, Klaus

    2002-01-01

    Companies are not going to invest into the development of innovative applications or services unless these can be charged for appropriately. Thus, the existence of standardized and widely accepted mobile payment procedures is crucial for successful business-to-customer mobile commerce. The acceptance of mobile payment procedures depends on costs, security and convenience issues. For the latter, it is important that a procedure can be used over the different payment scenarios mobile commerce, ...

  19. Mobile technologies for every library

    Gleason, Ann Whitney

    2015-01-01

    If you are wondering what mobile technology adoption means for your library or how to get started, Mobile Technologies for Every Library will answer your questions! This book will detail the opportunities and pitfalls in using mobile technology in libraries. It will also address platforms, options, security, and best practices for starting new mobile services programs or improving existing services. Gleason previews many useful apps for libraries. Web links and resources are also included.

  20. Mobile Telecommunications and Digital Innovations

    Olga Syraya

    2014-01-01

    This paper describes and analyzes the most recent international trends in the development of mobile communications. The first part deals with the key sectors of the mobile communications market: mobile network, handsets and smartphone operating systems. We focus on the current deployment of Long Term Evolution networks and present the main factors of their worldwide success and their advantages over previous mobile technologies. Furthermore, special attention is given to the historical develo...

  1. The mobile devices and its mobile learning usage analysis

    S. M. Jacob; Issac, B.

    2014-01-01

    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 learning among the st...

  2. Telemedicine Based on Mobile Devices and Mobile Cloud Computing

    Lidong Wang

    2014-04-01

    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.

  3. Mobile wave how mobile intelligence will change everything

    Saylor, Michael

    2012-01-01

    In the tradition of international bestsellers, Future Shock and Megatrends, Michael J. Saylor, CEO of MicroStrategy, brings The Mobile Wave, a ground-breaking analysis of the impact of mobile intelligence-the fifth wave of computer technology.   The Mobile Wave argues that the changes brought by mobile computing are so big and widespread that it's impossible for us to see it all, even though we are all immersed in it. Saylor explains that the current generation of mobile smart phones and tablet computers has set the stage to become the universal computing platform for the world. In the hands o

  4. Webshop Optimization for Mobile Devices

    Mei, Long

    2009-01-01

    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.

  5. The Mobile Robot "Little Helper"

    Hvilshøj, Mads; Bøgh, Simon; Madsen, Ole;

    2009-01-01

    Increased customer needs and intensified global competition require intelligent and flexible automation. The interaction technology mobile robotics addresses this, so it holds great potential within the industry. This paper presents the concepts, ideas and working principles of the mobile robot...... this show promising results regarding industrial integration, exploitation and maturation of mobile robotics....

  6. Mobile Learning in Higher Education

    Fraga, Lucretia M.

    2012-01-01

    This mixed method research study investigated the beliefs of university faculty regarding mobile learning. As well as to determine if providing technology professional development to university faculty supports the increase of mobile learning opportunities in higher education. This study used the Beliefs About Mobile Learning Inventory (BAMLI) to…

  7. Mobile Multicast in Hierarchical Proxy Mobile IPV6

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

    2013-12-01

    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.

  8. Sampling distributions for introductory statistics students using internet polling software

    Wagaman, John C.

    2013-04-01

    The topic of sampling distributions is the first source of considerable difficulty for introductory statistics students. In this article, an active learning idea for an introduction to sampling distributions is presented. The activity uses real data collected from the class, and the results are used to generate sampling distributions using electronic communication of sample statistics from student mobile telephones.

  9. An Investigation of Initial Trust in Mobile Banking

    Fakhraddin Maroofi

    2013-09-01

    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.

  10. Mobility-Based Mobile Relay Selection in MANETs

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

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

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

    Ouiame Filali Marzouki; Asmaâ Retbi; Mohammed Khalidi Idrissi; Samir Bennani

    2014-01-01

    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 integrati...

  12. An Alternative Approach for the Determination of Soil Water Mobility

    M.P.C.ENGLER; R.CICHOTA; Q.DE JONG VAN LIER; E.M.BLOEM; G.SPAROVEK; E. SCHNUG

    2008-01-01

    A new laboratory method was proposed to establish an easily performed standard for the determination of mobile soil water close to real conditions during the infiltration and redistribution of water in a soil.It consisted of applying a water volume with a tracer ion on top of an undisturbed ring sample on a pressure plate under a known suction or pressure head.Afterwards,soil water mobility was determined by analyzing the tracer-ion concentration in the soil sample.Soil water mobility showed to be a function of the applied water volume.No relation between soil water mobility and applied pressure head could be established with data from the present experiment.A simple one- or two-parameter equation can be fitted to the experimental data to parameterize soil water mobility as a function of applied solute volume.Sandy soils showed higher mobility than loamy soils at low values of applied solute volumes,and both sandy and loamy soils showed an almost complete mobility at high applied solute volumes.

  13. Factors Affecting the Intention to Reuse Mobile Banking Service

    Ceva Lavenja Arahita

    2015-10-01

    Full Text Available The accelerated advancement in technology resulted to the appearance of Self Service Technology. One form of self-service technology in the banking sector is the presence of mobile banking. This study aims to examine the influence of five factors toward the reusing of Mobile Bank Central Asia (BCA in Bandung. Those factors used in this study were the extension of Technology Acceptance Model (TAM constructs, i.e perceived usefulness, perceived ease of use, perceived credibility, customer awareness and social influence. Data was collected through distributed questionnaire to 100 respondents who used Mobile BCA by using judgment sampling. Multiple linear regression technique was employed to investigate the influence among variables. This study empirically concluded that consumer intention to reuse BCA mobile services was positively influenced by perceived ease of use, customer awareness and social influence. On the other hand, perceived usefulness and perceived credibility did not influence the intention of reusing Mobile BCA in Bandung. Further study is suggested to use probability sampling technique to cover the real voice of mobile banking user in Bandung and to explore the lack influence of perceived usefulness and perceived credibility toward reusing of Mobile BCA.

  14. Partnership networks and mobilization

    Maria Clara Aquino Bittencourt

    2013-12-01

    Full Text Available This review of the book @internet e #rua: ciberativismo e mobilização das redes sociais (The Internet and the Street: Cyber Activism and Mobilization in Social Networks, written by Fábio Malini and Henrique Antoun, exposes some of the main subjects approached in the text that develops over a historical background of the internet and the digital communication and information technologies. This brief tour of the two researchers’ work attempts to approximate the analysis of collaboration and partnership networks with the most recent practices of production, circulation and consumption of content in the context of the mobilizations that went from the social networks to the streets from Brazil. 

  15. Mobile Biomass Pelletizing System

    Thomas Mason

    2009-04-16

    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.

  16. Mobile Autonomous Humanoid Assistant

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

    2004-01-01

    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.

  17. Social mobility and fertility

    Gianpiero Dalla Zuanna

    2007-12-01

    Full Text Available Intra- and inter-generational social mobility have in the past played an important role in attempts to explain fertility behaviour, and continue to do so today. The opinions expressed by social scientists in the first part of the 20th century are renewed and confirmed. More specifically: (1 intra-generational social mobility has been reinforced by the personal well-being aspirations and job careers of women; (2 status anxiety parents feel for their children pushes fertility down in large areas of the developed world (mainly in southern European and eastern Asian countries. Therefore, the provocative idea of Ariès that in the rich world, the child-king has now been replaced by the couple-queen does not perfectly hold.

  18. Consumer Attitude Toward Mobile Marketing in Bosnia and Herzegovina

    Irma Jasarspahic

    2014-08-01

    Full Text Available Driven by the ongoing evolution in mobile technologies and the increasing popularity of the internet, the mobile marketing is becoming more and more popular to marketers whose aim is definitely to promote their goods and services to the consumer. Since many people are still unaware of the potential of marketing via mobile devices this research aimed to examine factors based on content of mobile marketing (entertainment, information, irritation, utility and personalization and frequency factor that are affecting the formation of attitude toward mobile marketing targeting BH consumers, and also will try bring to light the response behavior of consumers attitude toward mobile marketing practices and how consumers perceive mobile marketing in BH. The research approach for this study is descriptive and the data was collected by 200 online surveys from young population of BH. The data was analyzed using the software program SPSS. Based on analysis and findings, variables of content have different effect on consumer attitude. Research has shown that a lot of respondents believe mobile marketing is a good idea and that they certainly eases the need for products and services. This paper could be used as a good basis for future research on bigger sample.

  19. The Adoption of Mobile Advertisement a Study from Pakistan

    Muhammad Rizwan; Mahmood ul Hassan; Nabila jamil; Rida zahra; Rawal rasheed; Raheeel nawaz

    2013-01-01

    The purpose of our research is to outgrow the usage of mobile phones for advertisement in order to save the time and cost. We believe that in future mobile advertisement will be the best way to communicate and advertised the company’s product directly to target market or target consumer. We have used descriptive research technique to evaluate the acceptability of mobile phone as a medium of advertisement. For that, we have taken a sample of 200 students and used regression analysis technique ...

  20. Privacy issues in mobile advertising

    Cleff, Evelyne Beatrix

    2007-01-01

    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...... 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...

  1. Mobile devices tools and technologies

    Collins, Lauren

    2015-01-01

    Mobile Devices: Tools and Technologies provides readers with an understanding of the mobile landscape available to app developers, system and network engineers, and the avid techie. As the trend of mobile technology has enabled the continuous development of ubiquitous applications, this book offers insights into tools and technologies critical to evaluating and implementing mobile strategies.The book is organized into four parts of 18 contributed chapters written by engineers in the areas of application and database development, mobile enterprise strategy, and networking and security. Througho

  2. How Mobility Systems Produce Inequality

    Richardson, Tim; Jensen, Ole B.

    2008-01-01

    formation of subject identities. New types of travellers are realised in the newly engineered spaces of mobility. The paper argues that this focus on these emergent mobile subject types can be useful in investigating the social inequalities that can result from the introduction of new infrastructures. This...... approach is illustrated in a case study of one urban transit system: the BTS Sky Train, Bangkok, Thailand. The analysis reveals the subtle hegemony of an elite mobility system that slowly becomes not only the ‘norm' but increasingly the desired mode of mobility, emphasising how mobile elites are...

  3. Mobility and emotions

    Selmer, Jan; Lauring, Jakob

    2014-01-01

    Increasing global mobility has directed attention to the self-initiated relocation of workers from one country to another. However, not all individuals are equally suited to start up a new life in another country, and self-initiated expatriates (SIEs) could be particularly vulnerable due to havin...... and all the studied adjustment variables, and the negative relationships for negative affectivity and the studies traits....

  4. Mobile analysis systems

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

  5. Mobility report 2011

    2011-01-01

    Following strong growth in the 1980s and 1990s, the total amount of national mobility among Dutch people has not increased since 2005. This especially applies to car use. Except for the credit crisis, the reasons for this remain unclear. Moreover, other western countries have had similar experiences.In 2010, economic recovery led to increased traffic congestion on the main road network. Traffic congestion, however, was less in 2011, partly as a result of road capacity enlargements. In recent ...

  6. Partnership networks and mobilization

    Maria Clara Aquino Bittencourt

    2013-01-01

    This review of the book @internet e #rua: ciberativismo e mobilização das redes sociais (The Internet and the Street: Cyber Activism and Mobilization in Social Networks), written by Fábio Malini and Henrique Antoun, exposes some of the main subjects approached in the text that develops over a historical background of the internet and the digital communication and information technologies. This brief tour of the two researchers’ work attempts to approximate the analysis of collaboration and pa...

  7. The Mobile Robot RHINO

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

    1995-01-01

    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...

  8. Solar mobile power supply

    Hu, Libian

    2014-01-01

    The solar mobile power supply is a comprehensive energy saving and environment protective product. Besides, it consists of solar panels, storage battery and controller as well as other important components. Based on the traditional solar charging circuit, this solar power supply combines the 5V USB interface and 12V adjustable circuit as well as the 220V inverter and power adapter to greatly improve the function of the power system.

  9. Qualified Mobile Server Signature

    Orthacker, Clemens; Centner, Martin; Kittl, Christian

    2010-01-01

    International audience A legal basis for the use of electronic signatures exists since the introduction of qualified electronic signatures in EU Directive 1999/ 93/EC. Although considered as key enablers for e-Government and e-Commerce, qualified electronic signatures are still not widely used. Introducing amobile component addresses most of the shortcomings of existing qualified signature approaches but poses certain difficulties in the security reasoning. The proposed server based mobile...

  10. Educational mobility during socialism

    Simonová, Natalie

    Brno : FSS MU, 2006, s. 1-29. [European Graduate School for Social Sciences: international seminar. Telč (CZ), 18.05.2006-21.05.2006] R&D Projects: GA ČR(CZ) GA403/06/1241 Institutional research plan: CEZ:AV0Z70280505 Keywords : education * mobility * inequality Subject RIV: AO - Sociology, Demography http:// web .fss.muni.cz/eusoc/EUSOC2_simonova_paper.pdf

  11. Mobile Web applications

    Nedyalkova, Stanislava

    2013-01-01

    This document presents the work that was elaborated at the company Present Technologies as part of the academic discipline Internship/Industrial Project for the Master’s degree in Informatics and Systems, Software Development branch, at Instituto Superior de Engenharia de Coimbra. The area of the mobile web applications has grown exponentially over the last few years turning it into a very dynamic field where new development platforms and frameworks are constantly emerging. Thus, the inter...

  12. Income Mobility and Welfare

    Krebs, Tom; Krishna, Pravin; Maloney, William F.

    2013-01-01

    This paper develops a framework for the quantitative analysis of individual income dynamics, mobility and welfare. Individual income is assumed to follow a stochastic process with two (unobserved) components, an i.i.d. component representing measurement error or transitory income shocks and an AR(1) component representing persistent changes in income. We use a tractable consumption-saving model with labor income risk and incomplete markets to relate income dynamics to consumption and welfare,...

  13. Mobile robot control system

    Jiruška, Jiří

    2015-01-01

    This thesis deals with differential drive wheeled mobile robot which is running under a real-time operating system. Introductory part is focused on theoretical description of robot and its original firmware. Practical part deals with creating software and implementation several methods that allow following the line by robot using reflectance sensor array. Significant part of this thesis is focused on design and implementation of communication protocol, based on IEEE 802.15.4 which provides co...

  14. Mobile parking system

    Jurgionis, Vytautas

    2005-01-01

    The automobiles parking system is designed in this project. This system has to make the automobiles parking payment easier, to save drivers dear time and money, to reduce traffics and pollution in the centre of the city. By implementing our automobiles parking system we will avoid all these problems. Our clients will be all users who has cars and terminal ware (personal computer with connection to the internet, mobile phone which has WAP or GPRS function, laptop). Usage and payment will be ve...

  15. New NOK mobile exhibition

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

  16. Mobile evaporator corrosion test results

    Rozeveld, A.; Chamberlain, D.B.

    1997-05-01

    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.

  17. Mobile nickel content in calcareous black soils of Rajac

    Đorđević Aleksandar R.

    2002-01-01

    A description of mobile Ni contents in various subtypes of calcareous black soils from the area of the mountain massif of Rajac, is given in the present paper. A hundred soil samples were analysed in all, originating from four subtypes of calcareous black soil (organogenic, organo-mineral, brownized and loessivized black soils). The extraction of mobile Ni was carried out with 1.0 N HCl and its content was determined by atomic absorption spectrophotometry. The obtained results indicate that m...

  18. Barriers to Adoption of Mobile banking: Evidence from Ghana

    Faisal Iddris

    2013-01-01

    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 ...

  19. The Study of Polarizing Brands in Iran Mobile Handset Market

    Arman Ahmadizad; Azade Omati; seyyed arman Rastad

    2016-01-01

    In recent years, the brand has been known widely as an important element to ensure achievement for Business and companies. This paper aims to study the polarizing brands in Iran mobile handset market. Statistic society includes all of customers of 10 active brands in Sanandaj mobile handset market and 299 questionnaires were gathered as a sample. The finding identify that overall attitude was positive. Also, The results obtained show that the brands of LG, Lenovo, Apple, Sony, Samsung,HTC, Hu...

  20. Mobile Zigbee Sensor Networks

    Anantdeep, Er; Kaur, Er Balpreet

    2010-01-01

    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...

  1. High-mobility diamond

    Landstrass, Maurice I.

    1994-04-01

    Recent improvements in the CVD diamond deposition process have made possible the fabrication of diamond photoconductive diodes with carrier mobility and lifetime exceeding the values typical of natural gemstones. One of the more surprising recent results is that the best room-temperature carrier properties have been measured on polycrystalline diamond films. The combined electron- hole mobility, as measured by transient photoconductivity at low carrier densities, is 4000 square centimeters per volt per second at electric field of 200 volts per centimeter and is comparable to that of the best single-crystal IIa natural diamonds. Carrier lifetimes measured under the same conditions are 150 picoseconds for the CVD diamond films. The collection distance within the diamond films, at the highest applied fields, is comparable to the average film grain size, indicative of little or no carrier scattering at grain boundaries. A comparison of SIMS measurements with electrical results suggest that impurity incorporation in the near grain boundary regions are responsible for controlling the carrier mobility.

  2. Mobile 3D tomograph

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

  3. Laboratory experiments in mobile robot navigation

    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

  4. Using USB Keys to Promote Mobile Learning

    Marilyne Rosselle

    2009-07-01

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

  5. Studies on deaf mobile application

    Nathan, Shelena Soosay; Hussain, Azham; Hashim, Nor Laily

    2016-08-01

    The deaf normally considered to be disabled that do not need any mobile technology due to the inabilities of hearing and talking. However, many deaf are using mobile phone in their daily life for various purposes such as communication and learning. Many studies have attempted to identify the need of deaf people in mobile application and level of usage of the applications. This study aims in studying the recent research conducted on deaf mobile application to understand the level of importance of mobile technology for this disabled community. This paper enable identification of studies conducted are limited and the need of more research done of this disabled people to ensure their privilege of using mobile technology and its application, which leads to the identification of deaf user requirement for mobile application as future study.

  6. Unique Features of Mobile Commerce

    DING Xiaojun; IIJIMA Junichi; HO Sho

    2004-01-01

    While the market potentials and impacts of web-based e-commerce are still in the ascendant, the advances in wireless technologies and mobile networks have brought about a new business opportunity and research attention, what is termed mobile commerce. Commonly, mobile commerce is considered to be another new application of existing web-based e-commerce onto wireless networks, but as an independent business area, mobile commerce has its own advantages and challenges as opposed to traditional e-commerce applications. This paper focuses on exploring the unique features of mobile commerce as. Compared with traditional e-commerce. Also, there are still some limitations arisen in m-commerce in contrast to web-based e-commerce. Finally, current state of mobile commerce in Japan is presented in brief, with an introduction of several cases involving mobile commerce applications in today 's marketplace.

  7. Privacy issues in mobile advertising

    Cleff, Evelyne Beatrix

    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...

  8. Securing mobile code.

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

    2004-10-01

    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 &apos

  9. Pre-Survey Text Messages (SMS) Improve Participation Rate in an Australian Mobile Telephone Survey: An Experimental Study

    Dal Grande, Eleonora; Chittleborough, Catherine Ruth; Campostrini, Stefano; Dollard, Maureen; Taylor, Anne Winifred

    2016-01-01

    Mobile telephone numbers are increasingly being included in household surveys samples. As approach letters cannot be sent because many do not have address details, alternatives approaches have been considered. This study assesses the effectiveness of sending a short message service (SMS) to a random sample of mobile telephone numbers to increase response rates. A simple random sample of 9000 Australian mobile telephone numbers: 4500 were randomly assigned to be sent a pre-notification SMS, an...

  10. A wireless potentiostat for mobile chemical sensing and biosensing.

    Steinberg, Matthew D; Kassal, Petar; Kereković, Irena; Steinberg, Ivana Murković

    2015-10-01

    Wireless chemical sensors are used as analytical devices in homeland defence, home-based healthcare, food logistics and more generally for the Sensor Internet of Things (SIoT). Presented here is a battery-powered and highly portable credit-card size potentiostat that is suitable for performing mobile and wearable amperometric electrochemical measurements with seamless wireless data transfer to mobile computing devices. The mobile electrochemical analytical system has been evaluated in the laboratory with a model redox system - the reduction of hexacyanoferrate(III) - and also with commercially available enzymatic blood-glucose test-strips. The potentiostat communicates wirelessly with mobile devices such as tablets or Smartphones by near-field communication (NFC) or with personal computers by radio-frequency identification (RFID), and thus provides a solution to the 'missing link' in connectivity that often exists between low-cost mobile and wearable chemical sensors and ubiquitous mobile computing products. The mobile potentiostat has been evaluated in the laboratory with a set of proof-of-concept experiments, and its analytical performance compared with a commercial laboratory potentiostat (R(2)=0.9999). These first experimental results demonstrate the functionality of the wireless potentiostat and suggest that the device could be suitable for wearable and point-of-sample analytical measurements. We conclude that the wireless potentiostat could contribute significantly to the advancement of mobile chemical sensor research and adoption, in particular for wearable sensors in healthcare and sport physiology, for wound monitoring and in mobile point-of-sample diagnostics as well as more generally as a part of the Sensor Internet of Things. PMID:26078146

  11. Expectations and Levels of Understanding When Using Mobile Phones among 9-11-Year Olds in Wales, UK

    Turley, Joanne; Baker, Sally-Ann; Lewis, Christopher Alan

    2014-01-01

    There is growing interest in examining the use of mobile technology among children. The present study extended this literature among a sample of 9-11-year olds in Wales, UK in three ways. First, to examine the level of mobile phone ownership; second, to consider how mobile phones are used, investigate timescales and expectations when communicating…

  12. Use of mobile phone data to estimate visitors mobility flows

    Gabrielli, Lorenzo; Furletti, Barbara; Giannotti, Fosca; Nanni, Mirco; Rinzivillo, Salvatore

    2015-01-01

    Big Data originating from the digital breadcrumbs of human activities, sensed as by-product of the technologies that we use for our daily activities, allows us to observe the individual and collective behavior of people at an unprecedented detail. Many dimensions of our social life have big data "proxies", such as the mobile calls data for mobility. In this paper we investigate to what extent data coming from mobile operators could be a support in producing reliable and timely estimates of in...

  13. Healthcare workers mobile phone usage: A potential risk for viral contamination. Surveillance pilot study.

    Cavari, Yuval; Kaplan, Or; Zander, Aviva; Hazan, Guy; Shemer-Avni, Yonat; Borer, Abraham

    2016-06-01

    Background Mobile phones are commonly used by healthcare workers (HCW) in the working environment, as they allow instant communication and endless resource utilisation. Studies suggest that mobile phones have been implicated as reservoirs of bacterial pathogens, with the potential to cause nosocomial infection. This study aimed to investigate the presence of Respiratory Syncytial Virus, Adenovirus and Influenza Virus on HCWs mobile phones and to identify risk factors implied by HCWs practice of mobile phones in a clinical paediatric environment. Methods Fifty HCWs' mobile phones were swabbed over both sides of the mobile phone, for testing of viral contamination during 8 days in January 2015. During the same period, a questionnaire investigating usage of mobile phones was given to 101 HCWs. Results Ten per cent of sampled phones were contaminated with viral pathogens tested for. A total of 91% of sampled individuals by questionnaire used their mobile phone within the workplace, where 37% used their phone at least every hour. Eighty-nine (88%) responders were aware that mobile phones could be a source of contamination, yet only 13 (13%) disinfect their cell phone regularly. Conclusion Mobile phones in clinical practice may be contaminated with viral pathogenic viruses. HCWs use their mobile phone regularly while working and, although the majority are aware of contamination, they do not disinfect their phones. PMID:27030915

  14. Mobile Intelligent Autonomous Systems

    Jitendra R. Raol

    2010-01-01

    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,

  15. MobileMAN: Mobile Metropolitan Ad hoc Networks

    Conti, Marco

    2003-01-01

    The project aims to define and develop a metropolitan area, self-organizing and totally wireless network that we call Mobile Metropolitan Ad-hoc Network (MobileMAN). In a MobileMAN the users device are the network, no infrastructure is strictly required. A MobileMAN is finalized at providing, at a low cost and where and when is needed, the communication and interaction platform for people inside a man. It will support a kind of citizens network by which people could avoid the operators infras...

  16. Mobile Design Pattern Gallery UI Patterns for Mobile Applications

    Neil, Theresa

    2012-01-01

    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

  17. System Architecture and Mobility Management for Mobile Immersive Communications

    Mehran Dowlatshahi

    2007-01-01

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

  18. Tongue mobility in patients with cerebral palsy

    Živković Zorica

    2012-01-01

    Full Text Available Background/Aim. In children with cerebral palsy speech is a big problem. Speech of these children is more or less understandable, depending on the degree of reduced mobility of articulatory organs. Reduced mobility is affected by inability to control facial grimacing and poor muscle strength when performing targeted movements. The aim of this study was to determine the mobility of tongue in patients with cerebral palsy. Methods. The study included a sample of 34 children - patients with cerebral palsy who had been treated in the Special Hospital for the Cerebral Palsy and Developmental Neurology in Belgrade. The patients were divided according to the determined diagnosis into two groups: Quadriparesis spastica (n = 11 and Morbus Little (n = 16. The children, aged 8-12 years, had preserved intelectual abilities, and all of them had preserved hearing. The study was conducted during the period from January to September 2009. The functional state of articulatory organs in both groups was tested by the C-test that examines the anatomic structure and mobility of the articulatory organs. Results. Our research showed that both groups of the patients had impaired functional state of the tongue - the most mobile articulatory organ. Also, the research showed that the functional state of the tongue was worse in children diagnosed with Quadriparesis spastica. A statistically significant correlation between the diagnosis and the functional state of the tongue, the tongue test performance and the retention of the tongue in a given position was found (r = 0.594, p < 0.005; r = 0.816, p < 0.01 and r = 0.738, p < 0.001, respectively. Conclusion. A large percentage of children with cerebral palsy were not able to establish control over the position of articulatory organs, especially the tongue, and its retention in a given position, all of which affect the quality of speech.

  19. Measuring Mobile Phone Use

    Boase, Jeff; Ling, Richard

    2013-01-01

    Norway. Our results show that self-report measures only correlate moderately to the server log data. This result poses serious epistemological implications for the many influential studies that use similar self-report measures. We further conduct an exploratory multivariate analysis to examine the extent......In this paper we examine how well two types of self-report measures adequately operationalize frequency of mobile phone use by comparing them to server log data. Our self-report measures of voice and SMS text messaging activity are drawn from a nationally representative survey of adults living in...

  20. Semantics in mobile sensing

    Yan, Zhixian

    2014-01-01

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

  1. Location and daily mobility

    Engebretsen, Øystein

    2005-01-01

    The aim of this paper is to discuss the interaction of location and daily mobility in cities. According to previous research the length of daily travel and the amount of car use in cities are influenced by urban density and residential location, thus focusing on urban sprawl as one of the main challenges for sustainable urban planning. However, during the last 10-15 years it has been more popular to settle in the inner city areas of Norwegian cities. This re-urbanisation has resulted in a sta...

  2. Spacesuit mobility knee joints

    Vykukal, H. C. (Inventor)

    1979-01-01

    Pressure suit mobility joints are for use in interconnecting adjacent segments of an hermetically sealed spacesuit in which low torques, low leakage and a high degree of reliability are required. Each of the joints is a special purpose joint characterized by substantially constant volume and low torque characteristics and includes linkages which restrain the joint from longitudinal distension and includes a flexible, substantially impermeable diaphragm of tubular configuration spanning the distance between pivotally supported annuli. The diaphragms of selected joints include rolling convolutions for balancing the joints, while various joints include wedge-shaped sections which enhance the range of motion for the joints.

  3. TELEIMAGERIE MEDICALE MOBILE

    KRIM, Selma; BENMANSOUR, Yasmine

    2014-01-01

    Le développement d’une application dans un environnement mobile n’est pas aisé, notamment en raison de l’infrastructure relativement lourde requise, dépendant d’une multitude de paramètres dont essentiellement la diversité des équipements impliqués. Pour résoudre ce problème, diverses solutions ont été envisagées par les principaux constructeurs (Apple, Samsung, HP). Plusieurs systèmes d’exploitation ont été proposés. Ces solutions sont intéressantes mais doivent respecter une ...

  4. Mobile phones and cancer

    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

  5. Secure Mobile Trade Agent

    Musbah M. Aqe

    2007-01-01

    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.

  6. Principles of mobile communication

    Stüber, Gordon L

    2007-01-01

    Preface. 1. Introduction: Wireless Systems and Standards; Frequency Reuse and the Cellular Concept; Mobile Radio Propagation Environment; Co-channel Interference and Noise; Receiver Sensitivity and Link Budget; Coverage; Spectral Efficiency and Capacity. 2. Propagation Modeling: Frequency-Non-Selective (Flat) Multipath-Fading; Frequency-Selective Multipath-Fading; Laboratory Simulation of Multipath-Fading Channels; Shadowing; Path Loss Models. 3. Co-Channel Interference: Multiple Log-normal Interferers; Probability of Outage; Multiple Ricean-Rayleigh Interferers; Multiple Log-normal N

  7. Wireless Cellular Mobile Communications

    V. Zalud

    2002-12-01

    Full Text Available In this article is briefly reviewed the history of wireless cellularmobile communications, examined the progress in current secondgeneration (2G cellular standards and discussed their migration to thethird generation (3G. The European 2G cellular standard GSM and itsevolution phases GPRS and EDGE are described somewhat in detail. Thethird generation standard UMTS taking up on GSM/GPRS core network andequipped with a new advanced access network on the basis of codedivision multiple access (CDMA is investigated too. A sketch of theperspective of mobile communication beyond 3G concludes this article.

  8. Mobile leak testing system

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

  9. Mobility report 2009

    2009-01-01

    Mobility in the Netherlands continues to increase, although less sharply than in the 1980s and 1990s. From 2000 to 2008, the number of kilometres travelled by car rose by 10 percent, while during the same time period, air travel grew much more rapidly at a rate of 21 percent. Similarly, freight transportation also grew by 21 percent from 2000 to 2008. Rail travel increased from 2000 to 2007 by 9 percent. In recent years, time loss due to traffic jams and road congestion has remained relativel...

  10. Programmable Baseband Filter for Multistandard Mobile Phones

    Jensen, Rasmus Glarborg; Christensen, Kåre Tais; Bruun, Erik

    2003-01-01

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

  11. Programmable Baseband Filter for Multistandard Mobile Phones

    Jensen, Rasmus Glarborg; Christensen, Kåre Tais; Bruun, Erik

    2003-01-01

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

  12. VIRTUAL PRIVATE NETWORKING MOBILE COMPUTING

    Ammar Es - Said

    2015-10-01

    Full Text Available In mobile communications systems, mobile units are free to move at a local, regional, national level, track international, while providing communication. With the increasing use, mobile users wish to increasingly access Internet services during their travels, the opportunities offered by these technologies has given rise to a new paradigm "«mobile computing » Th is paradigm underlying the concept of availability or presence "in any place and at any time" certainly such mobility involves Internet and wireless technologies in a process to provide advanced services to nomadic users, however in order to be able to off er these services with satisfactory quality, you must face many challenges in relation to the reliability of services infrastructure, energy efficiency of mobile devices.

  13. Tethered Contactless Mobile Nuclear Environment Monitoring Robot

    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

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

    Ouiame Filali Marzouki

    2014-05-01

    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.

  15. Mobile Technologies for Lifelong Learning

    Alina Mihaela ION

    2015-01-01

    The article presents an analysis of the impact of using mobile devices on participants at the lifelong learning educational process. Human durable development involves adapting to new hardware and software technologies supported by the progress of information and communication technology. Along with technological evolution the access to mobile devices knew a significant growth and encouraged the extension of educational process towards lifelong learning through mobile devices. Thus m-Learning...

  16. Life cycle of mobile devices

    T.V. Rohal; S.I. Naumenko; G.О Peresadko

    2011-01-01

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

  17. Thermal Decomposition of Mobile Phones

    Egea Ruiz, Silvia; Moltó Berenguer, Julia; Conesa Ferrer, Juan Antonio; Font Montesinos, Rafael; Ortuño García, Nuria

    2011-01-01

    Mobile phones are used for a variety of purposes, including keeping in touch with family members, conducting business, and having access to a telephone in the event of an emergency. Some people carry more than one cell phone for different purposes. In 2006 more than one billion mobile phones were shipped worldwide, 22.5 % more than the quantity shipped in 2005. By 2008 the number of mobile phone users around the world was predicted to reach two billion.

  18. Customer Intimacy in Mobile Retail

    Míček, Martin

    2009-01-01

    The master thesis deals with the topic of customer intimacy in mobile telecommunications and describes how the concept of a value-based strategic approach called "customer intimacy" can be applied in telecommunications industry, illustrated on an example of a mobile operator customer relationship lifecycle model. The goal of the thesis is to evaluate mobile telecommunications industry potential for application of the value discipline of customer intimacy and illustrate a high-level framework ...

  19. Location Privacy in Mobile Networks

    Ergenzinger, Andreas

    2015-01-01

    This master thesis presents a client-server system for protecting the anonymity and location privacy of mobile network users against a passive network-side adversary. The server provides a pool of UICCs – technological successors to SIM cards. Users’ cellphones rely on those UICCs for accessing a mobile network. Through simultaneous, coordinated switching to new UICCs, groups of users in the same mobile radio cell become indistinguishable to the adversary. The system’s performance was evaluat...

  20. Innovative Secure Mobile Banking Services

    Mousa T AL-Akhras; Rizik Al-Sayyed; Marwah Alian; Doaa Qwasmi

    2011-01-01

    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 anywh...