Measurement of A and Ann in elastic pp at 18.5 GeV/c

Measurements of A and Ann are reported for 8 p2⟂ values from 1.40 to 3.35 (GeV/c)2. Both show pronounced dips in this region: A at ∼3.0 and Ann at 42.3 (GeV/c)2. It is remarked that we have no current model for associating these dips, and that a significant comparison might first be available from extensive plots of A and Ann against plab and p2⟂.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87376/2/119_1.pd

Simulations of a New Continuous Steelmaking Process

A new continuous steelmaking process has been designed in an effort to reduce meltshop costs and increase productivity beyond the possibilities of current EAF-LMF-CC meltshops. This paper discusses possible operational performance based on industrially-verified kinetic, thermodynamic, and heat-transfer models. Dynamic simulations predict variations in steel chemistry and temperature, resulting from steel treatment and upsets. Savings in costs are projected because of increased metallic yield, lower energy requirements, more efficient use of deoxidants and alloys, fewer man-hours per ton, and decreased capital investment

Continuous Steel Production and Apparatus

A process for continuous refining of steel via multiple distinct reaction vessels for melting, oxidation, reduction, and refining for delivery of steel continuously to, for example, a tundish of a continuous caster system, and associated apparatus

Continuous Steel Production and Apparatus

A process for continuous refining of steel via multiple distinct reaction vessels for melting, oxidation, reduction, and refining for delivery of steel continuously to, for example, a tundish of a continuous caster system, and associated apparatus

LOSS OF PHOSPHORUS BY RUNOFF FOR AGRICULTURAL WATERSHEDS

The loss of nutrients in runoff from agricultural land is a major cause of poor surface water quality in the United State. Scientists (NRCS) developed a technique to estimate the impact of agricultural watersheds on natural water resources. The objectives of this study were to apply this technique on the Wagon Train (WT),watershed to predict (1) loss of water by surface runoff, (2) loss of phosphorus (P) from soils by runoff and P loading for WT reservoir. The annual loss of water by runoff was estimated at 4.32 million m3 . The USGS data for a 50-year period (1951 to 2000) indicated that the average annual inflow for WT reservoir was 4.25 million m3 . The predicted annual P loss by runoff was 844 kg and could be considered as the annual loading for WT reservoir. The predicted P concentration in the runoff water at field sites was 196 μg/L. Phosphorus concentration observed in major streams at the beginning of spring (March) ranged from 99 μg/L to 240 μg/L with an average of 162 μg/L (S.D..= 40 μg/L), and the average P concentration in water samples taken from different locations in the reservoir was 140 μg/L. Phosphorus uptake by algae, weeds and aquatic plants, as well as high pH in the reservoir and streams might explain the slight drop of P concentration in waters. Further, the average P concentration observed in the main stream samples for the entire rainy season (March through October), ranged between 157 and 346 μg/L with an average of 267 μg/L (S.D. = 65 μg/L). Application of P fertilizers (April/May) for summer crops might explain the increase in P concentration. When factors affecting P concentration in streams are considered, the technique could provide a reasonable estimation of P concentration in stream water

Search for 1-Mev Gamma from N16 Decay

In the beta-decay of N16 to the 1- (7.1-Mev) and 3- (6.1-Mev) excited states of O16, respectively, a discrepancy exists between the branching ratio of about 1:1 determined from absorption measurements on the beta-spectrum, and the ratio of about 1:12 from measurement of the associated gamma-ray intensities. If both measurements are to be reconciled, the most likely possibility is a strong E2 gamma-ray transition from the 7.1-Mev to the 6.1-Mev level. The likelihood that this E2could give serious competition to the normal 7.1-Mev E1 ground state transition is enhanced by the isotopic spin selection rule forbidding E1 transitions with [delta]T = N - Z = 0. In order to explain the quantitative discrepancy in this way, however, this selection rule would have to be much stronger than suggested by simple estimates

Life Cycle Greenhouse Gas Emission Comparison of Steel Products with Other Materials

This paper outlines the background of Life-Cycle Inventory/ Life-Cycle Assessment (LCI/LCA) and reviews an undergraduate design project in progress at the University of Missouri - Rolla (UMR) comparing LCI/LCA of steel products with similar products produced from competing materials. GaBi 4 LCI/LCA software is being used to model LCI/LCA with a demonstration of the use of the software for a typical steelmaking operation.1 Future research utilizing the LCI/LCA methodology is being applied to compare the environmental impact of steel products to other alternative engineering materials. This work involves 13 undergraduate students working in four design teams under a FeMET design grant provided by the American Iron and Steel Institute (AISI) and the Association of Iron and Steel Technology (AIST) Foundation