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A Phoma sp. was isolated and characterized as endophytic and as a pathogen of Larrea tridentata (creosote bush) growing in the desert region of southern Utah, USA. This fungus produces a unique mixture of volatile organic compounds (VOCs), including a series of sesquiterpenoids, some alcohols and several reduced naphthalene derivatives. Trans-caryophyllene,(More)
The construction and testing of a unique instrument, the Paleobiosphere, which mimics some of the conditions of the ancient earth, is described. The instrument provides an experimental testing system for determining if certain microbes, when provided an adequate environment, can degrade biological materials to produce fuel-like hydrocarbons in a relatively(More)
Gloeosporium sp. (OR-10) was isolated as an endophyte of Tsuga heterophylla (Western hemlock). Both ITS and 18S sequence analyses indicated that the organism best fits either Hypocrea spp. or Trichoderma spp., but neither of these organisms possess conidiophores associated with acervuli, in which case the endophytic isolate OR-10 does. Therefore, the(More)
A 200MHz single cell elliptical Nb-Cu cavity has been fabricated and tested at 4.2 K and at 2.5 K in a vertical de-war fitted in a radiation shielded pit, 5 m deep and 2.5 m in diameter. The low field ¢ ¤ £ reached ¥ § ¦¨© ¥ £ at 4.2 K. Two multipacting barriers show up at = 3 MV/m and 1 MV/m. Helium processing is effective to reduce field emission and(More)
Alfvén eigenmodes (AEs) are studied to assess their stability in high density reactor relevant regimes where T i ≈ T e and as a diagnostic tool. Stable AEs are excited with active MHD antennas in the range of the expected AE frequency. Toroidal Alfvén eigenmode (TAE) damping rates between 0.5% < γ/ω < 4.5% have been observed in diverted and limited Ohmic(More)
The prototype superconducting cavity system for CESR-Phase III was tested in CESR in August 1994. The performance of the system was very gratifying. The cavity operated gradients of 4.5-6 MV/m and accelerated beam currents up to 220 mA. This current is a factor of 3 above the world record 67 mA for SRF[1]. The high circulating beam current did not increase(More)
Urnula sp. was isolated as an endophyte of Dicksonia antarctica and identified primarily on the basis of its ITS sequence and morphological features. The anamorphic state of the fungus appeared as a hyphomyceteous-like fungus as based on its features in culture and scanning electron microscopy examination of its spores. On potato dextrose agar (PDA), the(More)
measurements of ion cyclotron range of frequency minority-heated fast-ion distributions on Alcator C-Mod. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. ICRH (Ion Cyclotron Resonance Heating) is the primary auxiliary heating on the Alcator C-Mod tokamak and is commonly used on other(More)
Five 1300 MHz superconducting niobium cavities are to be used for the injector of Cornell ERL prototype. The beam power requirement (100 kW each cavity CW) and the need to minimize emittance dilution due to the cavity structure have important impacts to the design and fabrication of these cavities. We plan to use Conflat stainless-steel flanges brazed to(More)
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