Water level time series and sediment grain size model

The environment of ebb-tidal deltas between barrier island systems is characterized by a complex morphology with ebb- and flood-dominated channels, shoals and swash bars connecting the ebb-tidal delta platform to the adjacent island. These morphological features reveal characteristic surface sediment grain-size distributions and are subject to a continuous adaptation to the prevailing hydrodynamic forces. The mixed-energy tidal inlet Otzumer Balje between the East Frisian barrier islands of Langeoog and Spiekeroog in the southern North Sea has been chosen here as a model study area for the identification of relevant hydrodynamic drivers of morphology and sedimentology. We compare the effect of high-energy, wave-dominated storm conditions to mid-term, tide-dominated fair-weather conditions on tidal inlet morphology and sedimentology with a process-based numerical model. A multi-fractional approach with five grain-size fractions between 150 and 450 µm allows for the simulation of corresponding surface sediment grain-size distributions. Net sediment fluxes for distinct conditions are identified: during storm conditions, bed load sediment transport is generally onshore directed on the shallower ebb-tidal delta shoals, whereas fine-grained suspended sediment bypasses the tidal inlet by wave-driven currents. During fair weather the sediment transport mainly focuses on the inlet throat and the marginal flood channels. We show how the observed sediment grain-size distribution and the morphological response at mixed-energy tidal inlets are the result of both wave-dominated less frequent storm conditions and mid-term, tide-dominant fair-weather conditions.

Drosophila melanogaster as a model for basal body research

The fruit fly, Drosophila melanogaster, is one of the most extensively studied organisms in biological research and has centrioles/basal bodies and cilia that can be modelled to investigate their functions in animals generally. Centrioles are nine-fold symmetrical microtubule-based cylindrical structures required to form centrosomes and also to nucleate the formation of cilia and flagella. When they function to template cilia, centrioles transition into basal bodies. The fruit fly has various types of basal bodies and cilia, which are needed for sensory neuron and sperm function. Genetics, cell biology and behaviour studies in the fruit fly have unveiled new basal body components and revealed different modes of assembly and functions of basal bodies that are conserved in many other organisms, including human, green algae and plasmodium. Here we describe the various basal bodies of Drosophila, what is known about their composition, structure and function.

A comparison of an estuary tide calculation by hydraulic model and computer /

Mode of access: Internet.

The wisdom of God manifested in the works of the creation : in two parts. Viz. The heavenly bodies, elements, meteors, fossils, vegetables, animals (beasts, birds, fishes, and insects), more particularly in the body of the earth, its figure, motion, and consistency, and in the admirable structure of the bodies of man and other animals, as also in their generation, &c. : with answers to some objections /

First published: 1691.

Direct support and general support maintenance for 2-1/2-ton, 6x6, M44A2 series trucks (multifuel) : model, truck, cargo M35A2 ... truck, maintenance, earth boring and polesetting, M764, 2320-00-937-5980.

"May 1992."

Operator's and organizational maintenance manual : water purification unit, van-type, body mounted, electric driven, AC, 115, 208 V, single- and 3-phase, 60 hertz, 1/20 to 2 hp, 3000 gph (MET-PRO model 3000V), NSN 4610-00-168-1799.

"18 June 1980."

Operator and organizational maintenance manual : auger, earth, skid mounted (Texoma model 254-8-2), FSN 3820-201-8293.

"December 1973."

Direct support and general support maintenance manual : auger, earth, skid mounted (Texoma Inc. model 254-8-2), FSN 3820-201-8293.

"January 1974."

Direct support and general support maintenance manual for tractor, wheeled, DED, loader backhoe, with hydraulic impact tool and with hydraulic earth auger attachment, John Deere model JD410 (CCE), with bucket, impactor, and earth drill (NSN 2420-00-567-0135).

"August 1992."

Direct support, and general support, maintenance repair parts and special tools list : shop equipment, general purpose repair, semitrailer mounted (southwest truck body model SGPRSMD) (serial no. Range S-11-204 through S-11-265) (4940-01-006-3229).

"May 1982."

Organizational and direct support maintenance repair and special tools list : shop equipment, electrical repair, semitrailer mounted (southwest truck body model SER), serial no. range S-4-629 thru S-4-663 (NSN 4940-00-165-4020), serial no. range S-4-001 thur [sic] S-4-078 (NSN 4940-00-159-8847), serial no. range SER-1001 thur [sic] SER-1078 (NSN 4940-01-022-5322).

"April 1982."

Operator's, organizational and direct support maintenance manual : shop equipment, electrical repair, semi-trailer mounted : (Southwest Truck Body model SER), serial no. range S-4-629 thru S-4-663, NSN 4940-00-165-4020, serial no. range S-4001 thru S-4-078, NSN 4940-00-159-8847, serial no. range SER-1001 thru SER-1078, NSN 4940-01-022-5322.

Includes index.

2 1/2 ton, 6X6, M44A1 and M44A2 series trucks (multifuel) : model, truck, cargo, M35A1 ... truck, maintenance, earth boring and polesetting, M764, 2320-00-937-5980.

"May 1981"--Vols. 1, 2, pt. 1.