227,085 research outputs found

    A Sociolinguistic Analysis Of Indonesian - English Code Mixing Found In Samsung Mobile Phone User Manual

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    This research paper analyzes code mixing found in Samsung mobile phone user manual. This study is analyzing 1) the forms of code mixing, and 2) the reasons of using code mixing. The type of this research is descriptive qualitative research. The data of this research are sentences containing code mixing in Samsung mobile phone user manual, especially on Samsung GT-S3653 Corby (2010) user manual which uses Indonesian, especially in the first 4 chapter of user manual they are: safety and usage information, introducing your mobile phone, assembling and preparing your mobile phone, and using basic function. In collecting data, the writer uses documentation method. The result of this research, the writer finds two findings, they are: first, he forms of code mixing. There are four forms of code mixing: they are 213 data of words or 61,9 %, 123 data of phrase or 35,75%, 5 data of hybrid or 1,45%, and 3 data of repetition word or 0,87%. Second, the reasons of using code mixing are prestige feeling motive 14 data or 4,06% and need feeling motive 330 data or 95,93%

    Dynamic Mobile Anonymity with Mixing

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    Staying anonymous and not revealing real identity is highly desired in today's mobile business. Especially generic frameworks for different kinds of context-aware mobile business applications should provide communication anonymity of mobile users as a core security feature. For enabling communication anonymity, Mix-net based solutions are widely accepted and used. But directly deploying existing Mix-net clients on mobile devices with limited hardware capacity is not a realistic approach. In addition, different anonymity sensitivities of both applications and users require to enforce anonymity dynamically rather than on a fixed level. In this paper, we present an approach towards a solution that addresses the specific anonymity challenges in mobile business while exploiting the benefits of existing Mix-net frameworks

    Reactor Neutrino Experiments with a Large Liquid Scintillator Detector

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    We discuss several new ideas for reactor neutrino oscillation experiments with a Large Liquid Scintillator Detector. We consider two different scenarios for a measurement of the small mixing angle θ13\theta_{13} with a mobile νˉe\bar{\nu}_e source: a nuclear-powered ship, such as a submarine or an icebreaker, and a land-based scenario with a mobile reactor. The former setup can achieve a sensitivity to sin22θ130.003\sin^2 2\theta_{13} \lesssim 0.003 at the 90% confidence level, while the latter performs only slightly better than Double Chooz. Furthermore, we study the precision that can be achieved for the solar parameters, sin22θ12\sin^2 2\theta_{12} and Δm212\Delta m_{21}^2, with a mobile reactor and with a conventional power station. With the mobile reactor, a precision slightly better than from current global fit data is possible, while with a power reactor, the accuracy can be reduced to less than 1%. Such a precision is crucial for testing theoretical models, e.g. quark-lepton complementarity.Comment: 18 pages, 3 figures, 2 tables, revised version, to appear in JHEP, Fig. 1 extended, Formula added, minor changes, results unchange

    Influence of preparation method on the performance of vanadia-niobia catalysts for the oxidative dehydrogenation of propane

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    The influence of various preparation methods on the performance of V-Nb-0 catalysts has been investigated. It was found that the activity and selectivity of a vanadium site depend on the nature of the neighbouring atoms. Vanadium neighbours provide activity, while niobium neighbours provide selectivity. Careful preparation of these catalysts ensures a homogeneous distribution and good mixing of the vanadium and niobium. It was also found that the vanadium becomes mobile upon reduction and this results in better distribution of vanadium in used catalysts

    Dynamic-Epistemic reasoning on distributed systems

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    We propose a new logic designed for modelling and reasoning about information flow and information exchange between spatially located (but potentially mobile), interconnected agents witnessing a distributed computation. This is a major problem in the field of distributed systems, covering many different issues, with potential applications from Computer Science and Economy to Chemistry and Systems Biology. Underpinning on the dual algebraical-coalgebraical characteristics of process calculi, we design a decidable and completely axiomatizad logic that combines the processalgebraical/ equational and the modal/coequational features and is developed for process-algebraical semantics. The construction is done by mixing operators from dynamic and epistemic logics with operators from spatial logics for distributed and mobile systems. This is the preliminary version of a paper that will appear in Proceedings of the second Conference on Algebra and Coalgebra in Computer Science (CALCO2007), LNCS 4624, Springer, 2007. The original publication is available at www.springerlink.co

    Traffic agents for improving QoS in mixed infrastructure and ad hoc modes wireless LAN

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    As an important complement to infrastructured wireless networks, mobile ad hoc networks (MANET) are more flexible in providing wireless access services, but more difficult in meeting different quality of service (QoS) requirements for mobile customers. Both infrastructure and ad hoc network structures are supported in wireless local area networks (WLAN), which can offer high data-rate wireless multimedia services to the mobile stations (MSs) in a limited geographical area. For those out-of-coverage MSs, how to effectively connect them to the access point (AP) and provide QoS support is a challenging issue. By mixing the infrastructure and the ad hoc modes in WLAN, we propose in this paper a new coverage improvement scheme that can identify suitable idle MSs in good service zones as traffic agents (TAs) to relay traffic from those out-of-coverage MSs to the AP. The service coverage area of WLAN is then expanded. The QoS requirements (e.g., bandwidth) of those MSs are considered in the selection process of corresponding TAs. Mathematical analysis, verified by computer simulations, shows that the proposed TA scheme can effectively reduce blocking probability when traffic load is light

    Age Optimal Information Gathering and Dissemination on Graphs

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    We consider the problem of timely exchange of updates between a central station and a set of ground terminals VV, via a mobile agent that traverses across the ground terminals along a mobility graph G=(V,E)G = (V, E). We design the trajectory of the mobile agent to minimize peak and average age of information (AoI), two newly proposed metrics for measuring timeliness of information. We consider randomized trajectories, in which the mobile agent travels from terminal ii to terminal jj with probability Pi,jP_{i,j}. For the information gathering problem, we show that a randomized trajectory is peak age optimal and factor-8H8\mathcal{H} average age optimal, where H\mathcal{H} is the mixing time of the randomized trajectory on the mobility graph GG. We also show that the average age minimization problem is NP-hard. For the information dissemination problem, we prove that the same randomized trajectory is factor-O(H)O(\mathcal{H}) peak and average age optimal. Moreover, we propose an age-based trajectory, which utilizes information about current age at terminals, and show that it is factor-22 average age optimal in a symmetric setting

    Organising self-referential taxi work with mICT: the case of the London black cab drivers

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    London Black Cab Drivers have a rich and documented history of mobile work practices that are geographically distributed and driven by situated choices for everyday work. To date mobile studies researchers have not made a close examination of these mobile working practices, hence there is a gap in mobile studies concerning this type of worker. This dissertation aims to study the evolution of Black Cab drivers' work practices since the introduction of mobile Information and Communication Technology (mICT) in their everyday work. The theoretical framework for the research is based on studies of taxi drivers' work practices, mobility research, computer supported co-operative work and organisational change promoted by IS interventions. The ontology of this research pinpoints the factors influencing the situated and idiosyncratic choice associated with the use of mICTs when carrying out planned and unplanned work. The case study references a 420-year history of "old", established work practices as a comparison framework. When compared with the "new" and situated choice of mICT-supported work, it becomes apparent that there has been a change in the dynamics of how this type of work is actually completed. Embedding and mixing elements of self-referenced work - as discretionary and independent - with working practices in which mutual interdependencies are supported by the use of mICT aids seems to provide the case for a re-negotiation of the working practices model as well as its associated organisational forms, together with a social shift in the definition of the role and skills required to perform this type of mobile work. The empirical data have been sourced from one-to-one interviews and video recordings using a combination of ethnographic methods and interpretative approaches for the data analysis. This dissertation makes a theoretical and practical contribution to mobile studies by understanding the changing of working practices; it further offers methodological insights for studying mICT-supported work. Finally, it provides a formative evaluation of the new organisational forms emerging as mICT has been introduced to everyday Black Cab work
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