25,345 research outputs found

    Estimated Surface Motions of the Earth's Core

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    Estimated surface fluid motions of earth core, and rotational and irrotational flow dat

    Comparison of estimates of surface fluid motions of the earth's core various epochs

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    Method of determining velocity of surface fluid motions of earth core for various epoch

    Nature of surface flow in the earth's central core

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    Nonuniform fluid velocity effect at surface of earth core on nature of surface flo

    CMS Electronics

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    Acoustic based safety emergency vehicle detection for intelligent transport systems

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    A system has been investigated for the detection of incoming direction of an emergency vehicle. Acoustic detection methods based on a cross microphone array have been implemented. It is shown that source detection based on time delay estimation outperforms sound intensity techniques, although both techniques perform well for the application. The relaying of information to the driver as a warning signal has been investigated through the use of ambisonic technology and a 4 speaker array which is ubiquitous in most modern vehicles. Simulations show that accurate warning information may be relayed to the driver and afford correct action

    Analysis of B-> \phi K Decays in QCD Factorization

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    We analyze the decay BϕKB\to \phi K within the framework of QCD-improved factorization. We found that although the twist-3 kaon distribution amplitude dominates the spectator interactions, it will suppress the decay rates slightly. The weak annihilation diagrams induced by (SP)(S+P)(S-P)(S+P) penguin operators, which are formally power-suppressed by order (Λ/mb)2(\Lambda/m_b)^2, are chirally and logarithmically enhanced. Therefore, these annihilation contributions are not subject to helicity suppression and can be sizable. The predicted branching ratio of BϕKB^-\to\phi K^- is (3.8±0.6)×106(3.8\pm0.6)\times 10^{-6} in the absence of annihilation contributions and it becomes (4.31.4+3.0)×106(4.3^{+3.0}_{-1.4})\times 10^{-6} when annihilation effects are taken into account. The prediction is consistent with CLEO and BaBar data but smaller than the BELLE result.Comment: 13 pages, 3 figures. A major change for the presentation of branching-ratio predictions. Experimental data are update

    Variable frequency microwave (VFM) processing facilities and application in processing thermoplastic matrix composites

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    Microwave processing of materials is a relatively new technology advancement alternative that provides new approaches for enhancing material properties as well as economic advantages through energy savings and accelerated product development. Factors that hinder the use of microwaves in materials processing are declining, so that prospect for the development of this technology seem to be very promising. The two mechanisms of orientation polarisation and interfacial space charge polarisation, together with dc conductivity, form the basis of high frequency heating. Clearly, advantages in utilising microwave technologies for processing materials include penetration radiation, controlled electric field distribution and selective and volumetric heating. However, the most commonly used facilities for microwave processing materials are of fixed frequency, e.g. 2.45 GHz. This paper presents a state-of-the-art review of microwave technologies, processing methods and industrial applications, using variable frequency microwave (VFM) facilities. This is a new alternative for microwave processing

    A systematic literature review comparing the psychological care needs of patients with mesothelioma and advanced lung cancer

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    © 2016 Elsevier LtdPurpose Psychological distress which adversely affects a person's experience of cancer has been shown to be highly prevalent in patients with mesothelioma. Historically, the assumption has been made that the evidence guiding the supportive care needs for lung cancer is relevant to those with mesothelioma. The objective of the study was to evaluate if the psychological care needs differ between patients with pleural mesothelioma and those with advanced lung cancer. Methods A search of MEDLINE, CINAHL, PsycARTICLES, Psychology and Behavioural Sciences Collection, PsycINFO databases, grey literature and the Cochrane Library of Systematic Reviews identified 17 studies meeting a predefined inclusion criteria. These were critically appraised for quality. Data relating to psychological experiences was extracted which was then synthesised narratively and through a process of meta ethnography. Results Common themes identified across the studies created 10 key concepts. These were uncertainty, normality, hope/hopelessness, stigma/blame/guilt, family/carer concern, physical symptoms, experience of diagnosis, iatrogenic distress, financial/legal and death and dying. Key similarities and differences were identified between the mesothelioma and lung cancer evidence. Conclusions There is limited research exploring the lived experiences of those with mesothelioma and lung cancer, with the majority of them having methodological and/or reporting concerns compromising the conclusions made. However, reoccurring themes in the evidence were found suggesting a number of areas where the psychological experience of mesothelioma differs from that of advanced lung cancer. These findings warrant further research to explore further and if proven, the need for the provision of specialist mesothelioma care services is affirmed

    A systematic literature review comparing the psychological care needs of patients with mesothelioma and advanced lung cancer

    Get PDF
    © 2016 Elsevier LtdPurpose Psychological distress which adversely affects a person's experience of cancer has been shown to be highly prevalent in patients with mesothelioma. Historically, the assumption has been made that the evidence guiding the supportive care needs for lung cancer is relevant to those with mesothelioma. The objective of the study was to evaluate if the psychological care needs differ between patients with pleural mesothelioma and those with advanced lung cancer. Methods A search of MEDLINE, CINAHL, PsycARTICLES, Psychology and Behavioural Sciences Collection, PsycINFO databases, grey literature and the Cochrane Library of Systematic Reviews identified 17 studies meeting a predefined inclusion criteria. These were critically appraised for quality. Data relating to psychological experiences was extracted which was then synthesised narratively and through a process of meta ethnography. Results Common themes identified across the studies created 10 key concepts. These were uncertainty, normality, hope/hopelessness, stigma/blame/guilt, family/carer concern, physical symptoms, experience of diagnosis, iatrogenic distress, financial/legal and death and dying. Key similarities and differences were identified between the mesothelioma and lung cancer evidence. Conclusions There is limited research exploring the lived experiences of those with mesothelioma and lung cancer, with the majority of them having methodological and/or reporting concerns compromising the conclusions made. However, reoccurring themes in the evidence were found suggesting a number of areas where the psychological experience of mesothelioma differs from that of advanced lung cancer. These findings warrant further research to explore further and if proven, the need for the provision of specialist mesothelioma care services is affirmed
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