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Showing 1 to 20 of 1375 for “"stems"”.
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Effects of rigid stems on sediment transport
… length of bed forms and average distance between stems. Finally, measurements of the drag force exerted by the cylinders to the flow were carried out by means a load cell fixed to the cylinders in staggered configuration. The measurements were done in a channel with fixed bed, both plane and with …
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Plant design for deterministic control of STEMS and tale-springs
In this thesis, the limits of conventional linear actuators for long stroke applications are discussed, and tape-spring based actuators such as the STEM are introduced as an alternative solution. While the literature contains several assessments of self-deploying tape-springs, little exists in the …
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Antimicrobial and antioxidant activity of crude extracts and fractions from stems and leaves of Tephrosia Lupinifolia
… and pharmacological studies conducted on the stems and leaves of the plant. The purpose of this study was to prepare and fractionate crude extracts from the leaves and stems of T. lupinifolia, and to evaluate their antioxidant as well as antimicrobial activities. Crude extracts were prepared …
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The adoption of laser melting technology for the manufacture of functionally graded cobalt chrome alloy femoral stems
… shielding characteristics of metallic femoral stems, stiffness configurations that offer more flexibility should be considered. This research has investigated the potential of more flexible and lightweight cobalt chromium molybdenum (CoCrMo) femoral stems that can be manufactured using …
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A comparison of the alkaloids of the fasciated and non-fasciated stems in two species of Sophora
… to possess a limited number of fasciated stems. Since pharmaceutically active alkaloids have been reported in the genus, this group of compounds was used in a chemical comparison to detect variability between the stem types. Classical (liquid, column, preparative and thin-layer …
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Automated Detection of Surface Defects on Barked Hardwood Logs and Stems Using 3-D Laser Scanned Data
… on the surfaces of barked hardwood logs and stems. The defects detected are at least 0.5 inch in height and at least 3 inches in diameter, which are severe, medium to large in size, and have external surface rises. Hundreds of real log defect samples were measured, photographed, and …
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Characterizing the Respiration of Stems and Roots of Three Hardwood Tree Species in the Great Smoky Mountains
Carbon dioxide efflux rates (CER) of stems and roots of overstory and understory black cherry (<i>Prunus serotina</i> Ehrh., BC), red maple (<i>Acer rubrum</i> L., RM) and northern red oak (<i>Quercus rubra</i> L., RO) trees were monitored over two growing seasons at two contrasting sites in the …
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Effect of maturity on rumen degradation of tropical and temperate forage cell wall polysaccharides from leaves and stems
… The effective degradabilities of both bana grass stems and leaves DM (50h) were low (48.2% and 45.3% respectively) and did not differ (P > 0.05) for the two fractions. Desmodium stems were less degradable (P < 0.05) than the leaves (40.8%and 59.7% respectively). Neither grass leaves nor stems …
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Development of Phloem in the Stems of Botrychium Dissectum Variety Obliquum (Muhl.) Chute. And B. Oneidense (Gilb.) House
Made available in DSpace on 2014-12-14T13:23:10Z (GMT). No. of bitstreams: 1 7524438.pdf: 7350734 bytes, checksum: 75053b622d2467c93c328ed17eaf5888 (MD5) Previous issue date: 1975
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The use of 3D surface analysis techniques to investigate the wear of matt surface finish femoral stems in total hip replacement
… and failure of matt surface finish femoral stems. By examining stems which have been explanted from patients, a method of wear classification has been developed, and also 3D surface measurement techniques have been employed to quantify wear through parametric characterisation and also volume …
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Dynamic interactions between CO2 efflu, sap flow and internal CO2 concentration in tree stems: implications towards the assessment of actual stem respiration
… research on dynamics in respiration of tree stems. It became clear that measurements of stem CO2 efflux with cuvettes, which have been used as a measure of stem respiration in numerous studies, do not reflect the actual respiration of the stem because also factors other than respiration …
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Some Effects of 2,4-Dichlorophenoxyacetic Acid on Sweet Corn (Zea Mays Rugosa L.) With Emphasis on Yield, Tillering, Root Development and Exudation of Electrolytes From Roots and Stems
Made available in DSpace on 2014-12-04T19:49:29Z (GMT). No. of bitstreams: 1 6206233.pdf: 4220269 bytes, checksum: 9f76f67de6d97cd4905ca19960061749 (MD5) Previous issue date: 1962
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The subsidiary stress in Russian compound words
… accentual property of the first stem. Since A stems have fixed stress on the stem, they more consistently have stress in the compound words. B stems do not have stress in the compound words. This is because B stems have stress on the ending and in the compound words only the stem occurs as the …
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Chilling injury and the control thereof in selected Leucadendron cultivars
… option over airfreight for Cape Flora ornamental stems. This shift has been driven by the rising cost of aviation fuel, alongside a greater awareness of and commitment to reduce carbon emissions. However, this alternative transport comes with a compromise as long-term cold storage can lead to …
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Humeral stem loosening following reverse shoulder arthroplasty - systematic review and meta-analysis
… loosening between: 1) cemented and uncemented stems, and 2) different etiological subgroups Methods: In a systematic review 75 articles were included after assessment of study methodology and a meta-analysis of 1660 cemented and 805 uncemented stems was performed. We compared the incidence of …
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Sorghum ratooning as an approach to manage covered kernel smut and the stem borer Chilo Partellus
… respectively. The higher number of heads and stems per unit area meant the ratooned crop had higher level of stem borers per unit area than the direct sown crop and when infected with covered kernel smut was a greater source of inoculum. Unlike the incidence of CKS, the number of stem borers …
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EFFECT OF PINCHING AND SPACING ON THE GROWTH AND DEVELOPMENT OF SUNFLOWERS (HELIANTHUS ANNUUS) IN EAST TEXAS
… Gold’ all the treatments produced marketable stems. Only the pinching treatment at node 4 failed to produce marketable stems for the cultivars ‘Sun Bright Supreme’, ‘Vincent’s Choice’, and ‘Pro Cut Gold’. Only the non-pinched and pinching treatment at node 1 produced marketable stems for …
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Association of Salmonella enterica serotype Newport with Tomato Plants through Irrigation Water, Grown under Controlled Environmental Conditions
… Newport to be associated with the roots, leaves, stems, and ultimately fruit of red round tomato plants through contaminated irrigation water, at various stages of plant development, when grown under controlled environmental conditions. Tomato plants were individually root irrigated with 250 or …
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