منابع مشابه
Steroid estrogens in ocean sediments.
This paper gives results from a study measuring the abundance of steroid hormones in ocean sediments in the proximity of a deep ocean sewage outfall. The outfall is discharge point for an enhanced primary sewage treatment plant and sediment samples were taken adjacent and 7 km from the outfall. All samples contained steroid estrogens at nanogram per gram levels with higher concentrations at the...
متن کاملinvestigating the feasibility of a proposed model for geometric design of deployable arch structures
deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
A Mathematical Model for Indian Ocean Circulation in Spherical Coordinate
In recent years, the Indian Ocean (IO) has been discovered to have a much larger impact on climate variability than previously thought. This paper reviews processes in which the IO is, or appears to be, actively involved. We begin the mathematical model with a pattern for summer monsoon winds. Three dimensional temperature and velocity fields are calculated analytically for the ocean forced by ...
متن کاملEmbedding a state space model into a Markov decision process
In agriculture Markov decision processes (MDPs) with finite state and action space are often used to model sequential decision making over time. For instance, states in the process represent possible levels of traits of the animal and transition probabilities are based on biological models estimated from data collected from the animal or herd. State space models (SSMs) are a general tool for mo...
متن کاملA broadband model of sandy ocean sediments: Biot–Stoll with contact squirt flow and shear drag
Unlike the application of the Biot model for fused glass beads, which was conclusively demonstrated by Berryman @Appl. Phys. Lett. 37~4!, 382–384 ~1980!# using the experimental measurements by Plona @Appl. Phys. Lett. 36, 259–261 ~1980!#, the model for unconsolidated water-saturated sand has been more elusive. The difficulty is in the grain to grain contact physics. Unlike the fused glass beads...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1985
ISSN: 0001-4966
DOI: 10.1121/1.391904