659 research outputs found

    On numbers and freedom

    Get PDF
    After many years of relatively slow progress, the field of research assessment and discovery has begun to change rapidly. As scholars adopt the web for scholarly communication, more and more sources of information about research impact are becoming available, and at much greater global scale and coverage, and openness than before. This article discusses these trends, highlights the major players and ongoing work, and points at future directions

    The nearshore dynamics of Matroos Bay : field and theoretical investigations

    Get PDF
    Bibliography: pages 113-119.Field and theoretical investigations were made of the nearshore circulation of Matroos Bay, a small embayment on the south-western coast of Africa. The field study revealed two dominant circulation types, denoted "anticlockwise" and "clockwise". The anticlockwise circulation type was characterized by longshore currents flowing from the back of the bay to the northern headland where a rip current was located. The clockwise circulation type was characterized by longshore currents flowing from the northern headland to the back of the bay where a rip current was situated. Anticlockwise circulation types were primarily found to occur during periods of low waves, the clockwise circulation during periods of high waves. Winds and coastal currents were found not to have a major influence on the circulation within the bay. The theoretical study was based on a model of longshore currents in a semi-circular bay (O'Rourke and Le Blond, 1972). This study showed that a change of the height of the wave could lead to a change in the direction of flow of the longshore current. In agreement with the field study, a low wave height was found to result in an anticlockwise circulation type, a high wave height resulting in a clockwise circulation type. The change from one circulation type to the other depended on the relative strength of two opposing mechanisms. One mechanism arose from the obliquity of the wave approach to the shore. This mechanism generated longshore currents towards the back of the bay and was dominant during high waves. The other mechanism resulted from the non-uniformity of the wave height around the bay and generated longshore currents flowing from the back of the bay. Coastal currents were measured as part of the field study. A fair correlation was-observed between the direction of the coastal current and that of the wind, particularly if the winds were moderate to strong. Temperature and salinity measurements were also made. These properties showed seasonal variations in accord with the principles of upwelling. Surface water was found to have a salinity similar to that found at a depth of 400 to 600 metres in the South Atlantic Ocean. The water was upwelled from a greater depth during the summer than during the winter. Heating of the water was found to be greater in summer than in winter whilst dilution of the water, due to rainfall, was found to be negligible, even during winter. The interchange of water between the bay and the coastal circulation was found to be dependent on the circulation type

    Letter from William Gunn to James B. Finley

    Get PDF
    Rev. Gunn writes that he is now making arrangements to leave his home in the country. He feels that he has been commissioned to preach, sing, and work for God until it is enough. He has been going through his papers and has found information about Rev. Benjamin Ogden, one of the first two M.E. preachers who came to Kentucky. Gunn claims that Brother Hinds (Thomas S. Hinds, aka Theophilus Arminius) did Ogden a great injustice in an 1819 Methodist Magazine article. In that article, Hinds claims that Ogden aligned himself with James O\u27Kelly in the schism concerning church government. Gunn has found evidence that this is not true and wants to set the record straight. Abstract Number - 463https://digitalcommons.owu.edu/finley-letters/1661/thumbnail.jp

    Actions of the World Health Organizations (WHO) and the United Nations (UN) in Disasters

    Get PDF
    In essence, the United Nations Organization was born out of disaster to avert disaster. Be they the work of nature or of man, catastrophic emergencies are not rare occurrences and all studies indicate that they are increasing in frequency and severity. Within the international community, the UN and its component organizations is only one of the three principal partners in disaster relief. The other are the Non-Governmental Organizations (NGO) - including the Voluntary Agencies (VOLAGS) - and the bilateral donor countries. Collaboration among these sectors is vital if international action is to be effective. This article deals with the UN System only, and in particular with the role of the World Health Organization (WHO) in disaster relief and preparednes

    Application of the Three Short Calibration Technique in a Low Frequency Focus Beam System

    Get PDF
    Electromagnetic material characterization is the process of determining the constitutive parameters of matter. In simple media, these parameters are permittivity and permeability. Characterization of these values is often accomplished through the use of waveguides, transmission lines, coaxial cables, and resonant cavities. Free space measurements systems are employed since they are non destructive (i.e., no sample machining is required) and broadband. Traditionally, time domain gating is utilized to mitigate systematic errors. However, an artifact of this calibration technique is band edge corruption due to data windowing. The goal of this research is to develop and apply a Three Short Calibration Technique to the General Electric Low Frequency (0.5-2GHz) Focus Beam System in order to preserve band edge data. It is shown that when working with low frequencies, such as the focus of this research, coupling effects due to multiple bounces within the collimating and focusing lenses as well as lens-sample interaction are not easily calibrated out. Although the coupling effects introduce extraneous clutter into the extracted constitutive parameter values, the results obtained agree with the known reference values of tested dielectric samples. It is concluded that with a more in depth study in sample/lens interaction at low frequencies, this calibration technique could prove useful in the accurate extraction of the desired low frequency constitutive parameter values

    I Hear the Train a Comin’

    Get PDF
    In each issue of Against the Grain, Greg Tananbaum\u27s Train column explores what is around the bend on the scholarly communications track. Lorraine Haricombe, Dean of Libraries at the University of Kansas and Chair of the Steering Committee for SPARC (Scholarly Publishing and Academic Resources Coalition), and William Gunn, Head of Academic Outreach at Mendeley, engage in a lively discussion about the transformative issues information providers, publishers, and libraries will soon be contemplating. The session is conversational in nature. No PowerPoints, no canned speeches—just two insightful industry experts talking about access, the role of the library, the state of innovation in the scholarly communication space, and other important topics

    Urban mobility and inequalities. Some perspectives from different disciplines

    Get PDF
    Urban mobility is one of the key aspects of urban planning and development. It plays an important role in the achievement of a resilient, inclusive and sustainable city. However, the complex interrelations of urban mobility, transportation and other city dimensions implies the need of an interdisciplinary approach to understand and plan it. In this brief paper, we discuss the social aspects of urban mobility and inequality and how it has been addressed in the literature. We also show different ways of gathering data relevant for the understanding of urban mobility, their sizes, scopes, and nature. Finally, we aim to promote an interdisciplinary debate based on our academic literature review about the relationship of urban mobility with social variables such as poverty

    Reference to index of records of correspondence, miscellaneous papers and accounts of William Gunn

    Get PDF
    William Gunn (1800-1868), police magistrate and Superintendent of Prisoners' Barracks, was born in Newry, Ireland, son of Lieut. William Gunn and Margaret (Wilson). After service in the British army, he came to Tasmania in 1822 and received a grant of land in the Sorell district, called by Gunn "Bourbon" after his regiment He served as Superintendent of Prisoners' Barracks in Hobart from 1826 1850 and Launceston 1850 -1859 and remained Police Magistrate in Launceston until his death in 1868. On moving to Launceston he acquired Glen Dhu as his main residence. In 1829 William Gunn married at Sorell Frances Hannah (Fanny) Arndell. They had three sons, including William, Ronald Thomas and James Arndell, and 6 daughters, including Margaret who married in 1852 Frank Allison (see A2) and Frances (Fanny jr.) and Isabel (Issie). Gunn was an elder of St Andrews Church, Hobart, and later of Chalmers Church, Launceston. In 1830 William's brother, Ronald Campbell Gunn (1808-1881) settled in Tasmania. William Gunn's wife's sister, Elizabeth Emily (Arndell), was married to another Sorell land holder, James Gordon of Forcett, who she married in 1814. James Gordon (1779-1842), born at Forcett, Yorkshire, England, son of John Gordon steward of the Stanwyck estate, had emigrated to Sydney as a merchant in 1806. In 1814 he was appointed Naval Officer in Hobart and granted land at Sorell and the following year he resigned his appointment to develop his property. In 1828 he succeeded his nephew, John Lakeland, as Superintendent of Convicts and in 1829 he was appointed Police Magistrate at Launceston but his delay in making his financial returns led to suspicion of fraud. In 1835 he retired to look after his property and the children of John Lakeland who were his wards. He was involved in a debt dispute with William Gunn, who after Gordon's death brought a law suit against his widow. John Lakeland (d.1828) arrived in Tasmania in 1814 or 1815. He served as Superintendent of Convicts until his death in 1828 and was granted land at Pittwater. He married Mary Louisa Arndell (d.1835),sister of Emily Elizabeth Arndell who was married to Lakeland's uncle, James Gordon. They had 2 sons, James Gordon and John Thomas, and 2 daughters, Emily Elizabeth and Louisa. John Lakeland appointed his uncle James Gordon and his brother-in-law William Gunn as executors and trustees of his will and guardian of his children. His widow, Mary, married Thomas H. White, the farm manager, in 1831 against the wishes of the trustees owing to some scandalous rumours about White's intentions and moral character
    • …
    corecore