AIGO: a southern hemisphere detector for the worldwide array of ground-based interferometric gravitational wave detectors

This paper describes the proposed AIGO detector for the worldwide array of interferometric gravitational wave detectors. The first part of the paper summarizes the benefits that AIGO provides to the worldwide array of detectors. The second part gives a technical description of the detector, which will follow closely the Advanced LIGO design. Possible technical variations in the design are discussed

Investigation of single crystal ferrite thin film Semiannual report, 1 Feb. - 31 Jul. 1969

Vapor deposition of single crystal thin films of lithium ferrite utilizing ferric chlorid

A survey of the temporary easement for construction of the proposed bridge over the Machipongo River

On April 23 and 24, 1986 a survey was conducted by the Virginia Institute of Marine Science (VIMS) on the temporary easement (3.248 acres) for the construction of the proposed bridge over the Machipongo River in Accomack County, Virginia (Figure 1). The study was done at the request of the Virginia Department of Highways and Transportation, Suffolk, Virginia for Project 0182-001-102, RW-201. The objective of this study was to determine the extent and value of the molluscan resource in· the temporary easement

A Survey in the Lafayette River for Oysters and Shell in the Vicinity of the Lakewood Bridge

At the request of the Department of Highways and Transportation the Virginia Institute of Marine Science made a study of the value of the oyster grounds in the vicinity of the Lakewood Bridge on the Lafayette River in Norfolk. The study included numbers of oysters and amounts of shell, or natural reef, in the area of acquisition and within a buffer area either side of the present bridge. The buffer area, or area of potential construction impact, extended 500 feet upriver of the bridge and 500 feet downriver of the bridge. This buffer area was the maximum distance upriver and downriver for any construction activity

An investigation, testing and modifying of gear to harvest oysters and shell : final contract report for the period 1 July, 1973 through 30 June, 1975

During the 1974-75 contract period the hydraulic escalator was modified and tested in the York and Rappahannock Rive r s . The tests showed that the harvester was capable of raising large quantities of oysters from various types of bottoms. Moreover, these oysters were not broken or crushed, were free .of silt or grit , and t he apparatus caused only minima l damage to the bottom . The modification were made from January to April and field testing began in May 1975 in t he York and Rappahannock Rivers on public and leased bottom and on several types of substrate . The device was demonstrated for oyster growers , television companies, the press, representatives of the Virginia Marine Resources Commission, the Maryland Department of Tidewater Fisheries and a representative of the National Marine Fisheries Service. A total of 16 trials or demonstrations were completed which are listed in detail chronologically i n the appendix

The origin and extent of oyster reefs in the James River, Virginia

The public oyster grounds (Baylor Survey Grounds) in the James River, VA, were studied with respect to bottom type and oyster density from 1978 to 1981. Approximately 10,118 ha (25,000 acres) were investigated using an electronic positioning system to establish station locations. Bottom types were determined using probing pipes, patent tongs, and an acoustical device. About 17.1% of the bottom was classified as consolidated oyster reef, and 47.5% was moderately productive mud-shell or sand-shell bottoms. The remaining 35.4% was rated as unsuitable for oyster culture. The surface configuration of oyster reef areas in the James River is similar to those in coastal lagoons· along the Gulf of Mexico. They are thought to have developed in the James River as they did in the Gulf of Mexico area as sea level rose during the Holocene Period

A resurvey of the Hampton Roads corridor area adjacent to the proposed site of the I-664 bridge-tunnel

On July 2 and 3, 1985, a survey was conducted by the Virginia Institute of Marine Science (VIMS) on Drewery-Register (formerly Melzer) leased bottom (48.37 acres) off Newport News Point, Virginia (Figure 1). The study was done at the request of the Virginia Department of Highways and Transportation, Suffolk, Virginia in relation to the construction of I-664, Project 066!!-121-102, RW-201. The objective of this study was to determine the extent and value of the molluscan resource on the Dewery - Register lease prior to construction activity

Investigation of single crystal ferrite thin films

Materials suitable for use in magnetic bubble domain memories were developed for aerospace applications. Practical techniques for the preparation of such materials in forms required for fabrication of computer memory devices were considered. The materials studied were epitaxial films of various compositions of the gallium-substituted yttrium gadolinium iron garnet system. The major emphasis was to determine their bubble properties and the conditions necessary for growing uncracked, high quality films