scholarly journals SRL in-situ tests in the United Kingdom: Part 2, Surface analyses of SRS waste glass buried for one and two years in limestone at Ballidon, UK

1991 ◽  
Author(s):  
C.G. Jr. Namboodri ◽  
G.G. Wicks
Keyword(s):  
United Kingdom ◽  
Waste Glass ◽  
In Situ Tests ◽  
The United Kingdom

Patterns and Processes of Change in the Spatial Distribution of Foreign-Controlled Manufacturing Employment in the United Kingdom, 1963 to 1975

1980 ◽  
Vol 12 (12) ◽  
pp. 1405-1426 ◽  
Author(s):  
P Dicken ◽  
P E Lloyd
Keyword(s):  
Spatial Distribution ◽  
United Kingdom ◽  
National Level ◽  
Temporal Variations ◽  
Processes Of Change ◽  
Employment Change ◽  
Manufacturing Employment ◽  
The United Kingdom ◽  
Patterns And Processes

Considerable changes occurred between 1963 and 1975 in the absolute and relative importance of foreign-controlled manufacturing employment both nationally and regionally. Its spatial distribution became rather more even, but there were substantial spatial and temporal variations in the rate and direction of foreign-controlled employment change. Such changes were brought about by the interaction of several components of which only one—new foreign openings—has been monitored at the national level. Case studies of the foreign sector in two large metropolitan areas, however, show that similar aggregate changes may be produced by quite different combinations of components. The in situ expansion of foreign branch plants explained most of the increase in the size of the foreign sector in Merseyside. By contrast, acquisition of United Kingdom enterprises explained most of the change in Manchester. Such differences raise a number of policy-related issues.

In Situ Testing of Waste Glass in Clay

1993 ◽  
Vol 333 ◽  
Author(s):  
Pierre Ph. Van Iseghem
Keyword(s):  
Waste Glass ◽  
International Expert ◽  
In Situ Testing ◽  
In Situ Tests ◽  
In Situ Test ◽  
Boom Clay ◽  
Mass Losses ◽  
Higher Temperature ◽  
Good Agreement

ABSTRACTThe actual status of an in-situ test programme exposing different waste glass samples directly to Boom clay is reviewed. Corrosion test tubes have been retrieved after residence for 5 years at 16° C, 2 years at 90° C, and 5 years at 170° C. The corrosion is interpreted in terms of mass loss, surface analysis by SEM and profiling by EPMA and SIMS. At 16° C, glasses dissolve about 0.02 – 0.08 µm per year. At higher temperature dissolution is more than two orders of magnitude larger. A good agreement is obtained between the mass losses and the surface analyses. The advantages and limitations of the Belgian in-situ tests are compared with the conclusions of an international expert group.

Comparison of in Situ and Laboratory Corrosion Experiments with Borosilicate Nuclear Waste Glass

1991 ◽  
Vol 257 ◽  
Author(s):  
Werner Lutze ◽  
Rodney C. Ewing
Keyword(s):  
Nuclear Waste ◽  
Laboratory Data ◽  
Waste Glass ◽  
Simulation Test ◽  
In Situ Tests ◽  
Nuclear Waste Glass ◽  
Systems Simulation ◽  
Long Term Behavior

ABSTRACTThe comparison of laboratory data from the corrosion of borosilicate nuclear waste glass (German SM513LW11 and French R7T7) with data from the Materials Interface Interactions Test (MIIT) and Repository Systems Simulation Test (RSST) illustrates the inherent limitations of in situ tests. Although in situ tests may confirm the short term behavior of waste forms and identify phenomena associated with the repository system, they do not provide the fundamental basis for the extrapolation of long-term behavior.

UNITED KINGDOM IN-SITU BURN TRIALS, LOWESTOFT, 1996

1997 ◽  
Vol 1997 (1) ◽  
pp. 131-136
Author(s):  
James Thornborough
Keyword(s):  
United Kingdom ◽  
Oil Spill ◽  
Worker Safety ◽  
Oil Analysis ◽  
Air Samples ◽  
The United Kingdom ◽  
International Audience ◽  
Oil Spill Response ◽  
Atmospheric Sampling

ABSTRACT On June 12, 1996, in a location 40 miles offshore of Lowestoft, an international audience gathered to watch Oil Spill Response Limited conduct the first controlled in-situ burn (ISB) in the United Kingdom. Two burns were completed using a response-prepared ISB system. The first burn involved fresh crude oil and was lit with a hand-held igniter using a standard gel mix. The second burn involved an emulsified crude and was lit using the Helitorch and an emulsion-breaking ignition mix. The trials were performed with the aim of determining operational practicalities under realistic conditions when responding to a weathered oil situation in an offshore location. Peripheral attention was paid to atmospheric sampling, except that air samples were collected aboard the main deployment vessel to assess worker safety. Oil analysis was carried out primarily to assess the values of the emulsion that was left as residue.

A comparative study of lens management in the United Kingdom and India with regard to rhegmatogenous retinal detachment surgery

2019 ◽  
Vol 30 (5) ◽  
pp. 1120-1126
Author(s):  
Alexander J Brent ◽  
Sahiba Bedi ◽  
Matthew Wakefield ◽  
Somnath Banerjee
Keyword(s):  
United Kingdom ◽  
Retinal Detachment ◽  
Refractive Surgery ◽  
Rhegmatogenous Retinal Detachment ◽  
The United Kingdom ◽  
Indian State ◽  
The Face ◽  
American Society ◽  
Significant Cataract

Introduction: Lens management in phakic patients with rhegmatogenous retinal detachments undergoing para plana vitrectomy surgery remains controversial among vitreoretinal surgeons. When combined phacovitrectomy is performed, the biometry decisions can be challenging both in the face of macula-off rhegmatogenous retinal detachments and previous refractive surgery. This study analyses current trends in practise. Methods: A scenario-related survey was sent to all members of the British and Eire Association of Vitreoretinal Surgeons and to vitreoretinal surgeons in the northern Indian state of Punjab. Results: In post-laser-assisted in situ keratomileusis patients with a visually significant cataract and a macula-on rhegmatogenous retinal detachment, the majority of British and Eire Association of Vitreoretinal Surgeons members (67.3%) and surgeons in Punjab (91.4%) would perform a stand-alone para plana vitrectomy and defer cataract surgery. When a combined phacovitrectomy is performed in this scenario, the majority of British and Eire Association of Vitreoretinal Surgeons (68%) would implant an intraocular lens (using either Haigis-L or European Society of Cataract and Refractive Surgeons/American Society of Cataract and Refractive Surgeons calculators), whereas the majority of Punjab surgeons (79.3%) would leave the patient aphakic. In a patient with a cataract and macula-off rhegmatogenous retinal detachment undergoing combined phacovitrectomy surgery, without any previous refractive surgery, the majority of British and Eire Association of Vitreoretinal Surgeons members (47.3%) would use the opposite eye biometry, whereas most Punjab surgeons (62.7%) would leave the patient aphakic. Discussion: Vitreoretinal surgeons in both the United Kingdom and Punjab predominantly avoid combined surgery in rhegmatogenous retinal detachment cases, even when faced with a visually significant cataract. When combined phacovitrectomy is performed, most vitreoretinal surgeons preference using the opposite eye biometry for macula-off cases and Haigis-L (myope) or online calculators for post-laser-assisted in situ keratomileusis cases.

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