Influence of a Large Free Stream Disturbance Level on Dynamics of a Jet in a Cross Flow

An experiment to study the physical agents that are responsible for the jet turning into the streamwise direction, and the mixing of the jet and the cross stream fluid in the case of a jet in a cross flow is discussed

Free stream turbulence and density ratio effects on the interaction region of a jet in a cross flow

Jets of low temperature air are introduced into the aft sections of gas turbine combustors for the purpose of cooling the high temperature gases and quenching the combustion reactions. Research studies, motivated by this complex flow field, have been executed by introducing a heated jet into the cross stream of a wind tunnel. The investigation by Kamotani and Greber stands as a prime example of such investigations and it serves as the principal reference for the present study. The low disturbance level of the cross stream, in their study and in similar research investigations, is compatible with an interest in identifying the basic features of this flow field. The influence of the prototypes' strongly disturbed cross flow is not, however, made apparent in these prior investigations

Static stability and control characteristics of two large-dihedral right triangular pyramid lifting reentry configurations at a Mach number of 3.05

Static stability and control characteristics of dihedral right triangular pyramid lifting reentry vehicle configuration

Procedings of the Second International Conference on Pedo-Archaeology

This multi-article volume was edited by Albert C. Goodyear, John E. Foss, and Kenneth E. Sassaman. Contents: Preface - Albert C. Goodyear and John E. Foss.....v Stratigraphy and Soil Chronosequence of the Brasstown Sites: A Model for Age Assessment of Alluvium in the Southern Blue Ridge, U.S.A. - David S. Leigh and John S. Cable.....1 Stratigraphy and Landscape Evolution: Implications for the Development of Cultural/Temporal Models in the Sand Hills of West-Central Louisiana - Charles Cantley and John E. Foss.....11 Gastrolith-Derived Stone Concentration in Deep Loess Soil of the Middle and Lower Mississippi River Valley, U.S.A. - Troy Cox.....27 Bioturbation to Bulldozers: The Myth of Undisturbed Sites and Its Implications in Cultural Resource Studies - Thomas J. Padgett.....35 Evidence for Subsurface Translocation of Ceramic Artifacts in a Vertisol in Eastern Crete, Greece - Michael W. Morris, John T. Ammons, and Photeinos Santas.....41 Variable Artifact Displacement and Replacement in a Holocene Eolian Feature - Joel Gunn and John E. Foss.....53 Prehistory and Holocene Floodplain Evolution Along the Inner Coastal Plain of Virginia: A Case Study from the Chickahominy Drainage - Joseph Schuldenrein and Dennis Blanton.....75 Soil Moisture Environments of Pre-Columbian Agricultural Terraces and Settlement, Rio Gavilan, Chihuahua, Mexico - Laurance C. Herold and Reuben F. Miller.....97 Soils of Caracol, Belize and Their Significance to Agriculture and Land Use - C. L. Coultas.....103 Pedo-Archaeology of the Mammoth Meadow Fan/Terrace Workshop Site in Southwestern Montana - Marvin T. Beatty, Mort D. Turner, Joanne C. Turner, and Robson Bonnichsen.....111 Considerations about Fragipans of the Eastern United States - Antonio V. Segovia.....121 Nahanada Site Pedology and the Archaeological Record Morphology - Kathleen E. Callum .....125 A Conceptual Methodology for Studying the Geoarchaeology of Fluvial Systems - Robin L Denson.....139 Application of the Newly Developed OCR Dating Procedure in Pedo-Archaeological Studies - Douglas S. Frink.....149https://scholarcommons.sc.edu/archanth_anthro_studies/1007/thumbnail.jp

Use of RIP to inactivate genes in Neurospora crassa.

About two years ago we suggested that a novel genetic mechanism, operating in the period between fertilization and nuclear fusion in Neurospora, scans the genome for sequence dupliations and alters them (Selker E. et al. 1987 Cell 51:741-752)

Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys

Line-intensity mapping (LIM or IM) is an emerging field of observational work, with strong potential to fit into a larger effort to probe large-scale structure and small-scale astrophysical phenomena using multiple complementary tracers. Taking full advantage of such complementarity means, in part, undertaking line-intensity surveys with galaxy surveys in mind. We consider the potential for detection of a cross-correlation signal between COMAP and blind surveys based on photometric redshifts (as in COSMOS) or based on spectroscopic data (as with the HETDEX survey of Lyman-$\alpha$ emitters). We find that obtaining $\sigma_z/(1+z)\lesssim0.003$ accuracy in redshifts and $\gtrsim10^{-4}$ sources per Mpc$^3$ with spectroscopic redshift determination should enable a CO-galaxy cross spectrum detection significance at least twice that of the CO auto spectrum. Either a future targeted spectroscopic survey or a blind survey like HETDEX may be able to meet both of these requirements.Comment: 19 pages + appendix (31 pages total), 16 figures, 6 tables; accepted for publication in Ap

The victorious English language: hegemonic practices in the management academy

This study explores hegemonic linguistic processes, that is, the dominant and unreflective use of the English language in the production of textual knowledge accounts. The authors see the production of management knowledge as situated in central or peripheral locations, which they examine from an English language perspective. Their inquiry is based on an empirical study based on the perspectives of 33 management academics (not English language speakers) in (semi) peripheral locations, who have to generate and disseminate knowledge in and through the English language. Although the hegemony of the center in the knowledge production process has long been acknowledged, the specific contribution of this study is to explore how the English language operates as part of the “ideological complex” that produces and maintains this hegemony, as well as how this hegemony is manifested at the local level of publication practices in peripherally located business and management schools