23,165 research outputs found

    Development of low temperature battery

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    Self-contained low temperature battery system consisting of a magnesium anode, potassium thiocyanate-ammonia electrolyte and a cathode composed of a mixture of sulfur, carbon, and mercuric sulfate operates for at least seventy-two hours within a discharge temperature range of plus 20 degrees C to minus 90 degrees C

    Survey of thermodynamic properties of the compounds of the elements CHNOPS Sixth preliminary report, 1 Oct. - 31 Dec. 1965

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    Heat capacity data on polyhydroxy compounds, water, carbon dioxide, and ammonia and vapor pressure data on methane, ammonia, and amino acid

    Transitions to Nematic states in homogeneous suspensions of high aspect ratio magnetic rods

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    Isotropic-Nematic and Nematic-Nematic transitions from a homogeneous base state of a suspension of high aspect ratio, rod-like magnetic particles are studied for both Maier-Saupe and the Onsager excluded volume potentials. A combination of classical linear stability and asymptotic analyses provides insight into possible nematic states emanating from both the isotropic and nematic non-polarized equilibrium states. Local analytical results close to critical points in conjunction with global numerical results (Bhandar, 2002) yields a unified picture of the bifurcation diagram and provides a convenient base state to study effects of external orienting fields.Comment: 3 Figure

    A survey of thermodynamic properties of the compounds of the elements CHNOPS Eighth progress report, 1 Apr. - 30 Jun. 1966

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    Thermodynamic properties of carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur compound

    Low temperature battery First quarterly report, 14 Dec. 1965 - 13 Mar. 1966

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    Low temperature battery - development of pasted plate cathode construction to extend cell lif

    Test of cure and beyond:superiority of thermal ablation over LLETZ in the treatment of high-grade CIN

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    PURPOSE: Among the treatment modalities for high-grade cervical intraepithelial neoplasia (CIN), large-loop excision of the transformation zone (LLETZ) is the commonest offered in the UK, whereas thermal ablation (TA) has not been common in several decades, despite several notable advantages. TA and LLETZ are both routinely undertaken in our colposcopy unit, and extensive follow-up data have been used to interrogate outcomes between the two modalities and determine whether one modality may be preferred over the other. METHODS: Up to 8 years of follow-up data (cytology and histology) were collected for patients who have undergone LLETZ or TA and failed post-treatment test of cure (ToC). These data were analysed and used to plot Kaplan–Meier survival curves, in order to compare outcomes: negative cytology, dyskaryosis, low- and high-grade CIN and invasive squamous cell carcinoma. RESULTS: i) Very few women treated with TA developed recurrent high-grade CIN in the follow-up period; (ii) LLETZ-treated women had a significantly higher rate of recurrence than those treated by TA; (iii) women who failed both virology and cytology components of post-treatment ToC had higher recurrence than those who failed only one, and the rate of recurrence was highest in those treated by LLETZ (> 65%). CONCLUSION: TA is an effective treatment of high-grade CIN, with a high chance of achieving double-negative ToC and low recurrence relative to LLETZ. We recommend the wider adoption of TA, so that young women of reproductive age have a choice of treatment with no reported adverse effects on pregnancy outcomes

    A survey of thermodynamic properties of the compounds of the elements chnops progress report, 1 feb. - 30 jun. 1965

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    Heat capacities, entropies, enthalpies, and free energies of organic and inorganic compounds of carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfu
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