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Showing 1 to 20 of 132 for “"Nitrogen content"”.
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Compounds of High Nitrogen Content
Made available in DSpace on 2014-12-05T19:35:50Z (GMT). No. of bitstreams: 1 0007846.pdf: 11592539 bytes, checksum: 1b79a07ac2d5906c4284f1b6de28b819 (MD5) Previous issue date: 1954
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CHANGES IN LEAF MORPHOLOGY, PHOTOSYNTHESIS AND NITROGEN CONTENT IN TWO COASTAL SHRUBS
… and then declined with age due to self shading. Nitrogen content was highest during spring. Seasonality and leaf age had unique effects on the two study species. Understanding senescence adaptations of these two shrubs can help explain their abundance in coastal ecosystems.
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Virginia-grown Barley for Craft Brewing: Evaluation of Free Amino Nitrogen Content and Malt Sensory Characteristics
… are currently under development. Free amino nitrogen (FAN) is a malt quality parameter that influences beer flavor directly and via yeast metabolism during fermentation. FAN and the individual amino acids making up FAN influence yeast health, beer color development, flavor, and flavor …
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Changes in the Total Nitrogen Content of Certain Tissues of Young Apple Trees During Senescence and Dormancy
Made available in DSpace on 2014-12-12T00:57:20Z (GMT). No. of bitstreams: 1 7212144.pdf: 2486002 bytes, checksum: 84001a841b0e691986fc9ce98c7215c6 (MD5) Previous issue date: 1971
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The effect of nitrogen content on the susceptibility to stress-corrosion cracking of type 20Cr-20Ni and AISI type 310 stainless steels
The effect of nitrogen content on the susceptibilities of type 310 and 20Cr-20Ni stainless steels to stress-corrosion cracking were studied by exposing the U-bend specimens of the alloys containing various nitrogen levels to magnesium chloride solutions boiling at 154°C. It was found that the …
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The influence of nitrogen on the deformation behaviour of a modified AISI type 200 series alloy
This thesis investigates the influence of nitrogen concentration on the deformation behaviour of a modified AISI 200 type alloy. The Fe-18Cr-4Ni-7Mn base alloys contained a range of nitrogen contents from 0 to 0.27 wt%. The tensile behaviour was characterised by uniaxial tensile testing. The room …
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The effects of nitrogen concentration between 0.27 per cent and 1.30 per cent on internal friction peaks in 304L stainless steel
… was conducted to determine the effect of nitrogen concentration between 0.27 percent and 1.30 percent on the internal friction peaks in 304L stainless steel. The amplitude of the internal friction peak associated with the stress-induced diffusion of interstitial nitrogen increased as a …
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Effects of elevated carbon dioxide on Bromus rubens and nutritional consequences for the desert tortoise
… using a common diet component, Bromus rubens. Nitrogen balance was monitored for tortoises fed pelleted diets reflecting the nitrogen levels of Bromus plants grown under elevated and ambient CO2 conditions, with varying potassium levels (3.5% and 1.4% DWB). Nitrogen content in the diet …
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Solubility of cellulose nitrate as a function of the degree of polymerization
… the solubility. Solubility is dependent upon the nitrogen content of the nitrate. Therefore, the nitrogen content of each fraction was to be determined, in order to draw valid conclusions from the solubility data.
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Some physiological responses of two grasses as influenced by temperature, light, and nitrogen fertilization
… conducted to study the effects or temperature, nitrogen, and light intensity on the growth and physiological effects on Tifgreen bermudagrass, Cynodon dactylon (L) Pers., and Cohansey bentgrass, Agrostis palustris Huds. Each of the grasses was included in a field experiment to study the …
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Studies on soluble nutrient components in wood and their influence on decay susceptibility and preservative efficacy
… nature and identity of soluble carbohydrate and nitrogenous components which migrate and accumulate at evaporative surfaces of dried wood and the influence these nutrients have on wood decay and preservative performance. <br/><br/>Specific soluble carbohydrates and amino acids were shown to …
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Soil Carbon Dynamics in Lawns Converted From Appalachian Mixed Oak Stands
… to a depth of 30 cm and analyzed for carbon and nitrogen content. Additional measurements taken were soil bulk density, temperature, moisture, and total soil CO₂ efflux rate. Homeowners participating in the study completed a survey on their lawn management practices so that the effects of …
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Assessment of the spatial variability of vegetative status in vineyards using non-destructive sensors: Application of remote and proximal sensing technologies in precision viticulture
… to determine chlorophyll, flavonol and nitrogen content in grapevine leaves. Materials and methods: A multispectral sensor mounted on a RPAS was employed for monitoring the spatial variability of the vegetative status of a commercial vineyard (Vitis vinifera L.) and the assessment of …
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Wood trait preferences of Neotropical xylophagous beetles (Coleoptera: Cerambycidae)
… traits, such as wood density (WD), moisture content (MC), bark thickness (BT), and nitrogen content (N); these traits affect the nutrients available to xylophagous insects. Cerambycid beetles feed on substrates that vary in these traits, but little is known about how they affect community …
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THE INFLUENCE OF ENVIRONMENTAL VARIABLES ON THE HEIGHT GROWTH OF LOBLOLLY PINE (Pinus taeda) IN THE WESTERN GULF
… important factors for predicting site index were nitrogen content of B horizon for soil and precipitation in spring and fall. Three models were developed, with one incorporating nitrogen of B horizon, one incorporating spring and fall precipitation, and the last one incorporating both the soil and …
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Some aspects of the nitrogen nutrition and growth of Gracilaria gracilis grown by suspended cultivation in Saldanha Bay, South Africa
… by upwelling. This study documents the extent of nitrogen starvation during this period and investigates some possible methods of managing this problem. Nitrogen content, C:N ratio and stable isotope abundances of C and N were obtained for material grown for varying lengths of time, material grown …
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Monitoring of Plant Chlorophyll and Nitrogen Status Using the Airborne Imaging Spectrometer AVIS
… plant constituents such as chlorophyll and nitrogen content. These are important parameters for optimised agricultural management on a field basis through the possibility of spatially differentiated fertilisation and for hydrological and vegetation yield modelling. The use of existing …
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The Effect of Insulin on the Nitrogen Metabolism of Teleost Fishes
… insulin in controlling the overall metabolism of nitrogen in the goldfish (Carassius auratus). Morphological investigations of the Islets of Langerhans have shown them to be closely associated with the ducts of the diffuse exocrine pancreas and thus are present throughout the pleuroperitoneal …
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Low-Temperature Gas-Phase Nitriding and Nitrocarburizing of 316L Austenitic Stainless Steel
… aspects of the process.</p><p>Supersaturated nitrogen interstitials (7 ~ 25 at.%) were introduced into 316L stainless steel samples, which yielded a lattice expansion ranging from 1% to 10%. Room temperature ferromagnetism in expanded austenite in stainless steels was then induced due to the …
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Comparisons of crop yields using semi-organic and inorganic fertilizers
… crop in all experiments.Biomass production and nitrogen accumulation were studied in the field trials.In the field trials a greater stand density was produced using the semi-organic fertilizer as compared with an inorganic fertilizer and no-fertilizer treatment. This difference was evident from …
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