Oblique wave scattering by a system of floating and submerged porous elastic plates

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Capitol Street at Night, Looking East, Jackson Mississippi

This color postcard features a view of a well lit street at night. Neon signs on the buildings read Kress , W. Woolworth Co. , Wards , Hotel Waltham , Hotel , Paramount , and Busch. A no parking sign is in the lower right corner of the image. Mid-century cards are parked on the sides of the street. The back of the postcard identifies the image as Capitol Street at Night, Jackson Mississippi. Looking East, along Capitol Street and provides publisher, photographer, and printer information as well as indication for postage stamp placement. Several iconic southern images such as the Biloxi Lighthouse, steamboats, and a couple dressed in antebellum clothing line the left corner edges. The logo for A Deep South Card is in the top center.https://scholarsjunction.msstate.edu/mss-lampton-images-ms-capitol/1027/thumbnail.jp

H. S. Eckels & Co.- J.C. Holmes Co., January 20, 1926

Correspondence: Letter from H.S. Eckels & Co. Manufacturing Chemists, Philadelphia, Pennsylvania, requesting payment of account from J.C. Holmes Co., Jacksonville, Florid

Invoice from E. & H. Hummel & Co. to Robert Goelet

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Birds-Eye-View of R.F. Learned and Son Saw Mill, Natchez, Miss.

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Phytochemical investigation and anti-inflammatory property of ethanol-water extract of the roots of Anthocleista djalonensis A. Chev. (Gentianiaceae)

Anthocleista djalonensis A.Chev. (Gentianiaceae) a plant of West African origin is used for the treatment of inflammatory disorders traditionally. Phytochemical screening of the plant root material gave positive result for tannins, saponins and carbohydrate; but negative for alkaloids and flavonoids. The ethanol-water (1:1) extract of the root material was subjected to anti-inflammatory activity using experimental animal model. From the results obtained, the crude extract showed significant activity (p < 0.05) comparable to the reference drug used. Chromatographic separation of the crude extract furnished a yellow viscous liquid, identified spectroscopically as sweroside. The pure compound was also subjected to anti-inflammatory activity, this showed significant activity (p < 0.05) at 100 mg/kg. The results of the study showed the justification of the use of the plant in the treatment of inflammatory disorders in ethnomedicine.Key words: Anti-inflammatory activity, Anthocleista djalonensis, ethanol-water extract, swerosid

Wave scattering by a partial flexible porous barrier in the presence of a step-type bottom topography

A semi-analytic model is presented for oblique wave scattering by a bottom-standing or surface-piercing flexible porous barrier in water of finite depth with a step-type bottom topography. The physical problem is solved using the methods of least-squares and multi-mode approximation associated with the modified mild-slope equation. Effects on the wave scattering due to bed profile, structural rigidity, compressive force, angle of incidence, barrier length, porosity, and height of the step are examined. The study reveals that under some special conditions, nearly zero/full reflection may occur in the case of wave scattering by a partial flexible porous barrier in the presence of an undulated bottom topography. Further, the study predicts that the Bragg resonance may not occur in the case of wave scattering by a topography of sinusoidal profile. The present study provides insights to help understand how waves are transformed in a marine environment with/without flexible porous barriers in the presence of a bottom topography. The concept and methodology can be generalized to analyze problems of similar nature arising in ocean engineering.postprin

Natural convection for slip flow in a vertical polygonal duct

Free convection with velocity slip and temperature jump in a vertical polygonal duct with a heated circular core is semianalytically solved by the methods of eigenfunction expansion and point match. The conditions of the core wall being at uniform wall temperature or uniform heat flux are considered. It is shown that the temperature and flowfields can be very different from those without the velocity slip and temperature jump. The optimum core radius and the corresponding maximum flow rate are numerically determined for some values of the slip length, temperature jump coefficient, and the number of sides of the polygon. Read More: http://arc.aiaa.org/doi/abs/10.2514/1.T4406postprin

Receipt from H. M. Howell & Co.

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