Airport Road Research Articles

Focus on lasers and optics

Focus on lasers and optics

Focus on software

Focus on software

The Fourth Canadian Workshop on Fusarium Head Blight / Quatrième colloque canadien sur la fusariose

The Fourth Canadian Workshop on Fusarium Head Blight / Quatrième colloque canadien sur la fusariose

Point of View

From the Cecil G. Sheps Center for Health Services Research, University of North Carolina, Chapel Hill, NC. The device(s)/drug(s) is/are FDA-approved or approved by corresponding national agency for this indication. No funds were received in support of this work. No benefits in any form have been or will be received from a commercial party related directly or indirectly to the subject of this manuscript. Address correspondence and reprint requests to Timothy S. Carey, MD, MPH, Cecil G. Sheps Center for Health Services Research, University of North Carolina, 725 Airport Road, CB #7590, Chapel Hill, NC 27599-7590; E-mail: [email protected].

Focus on Photonics and Imaging

Focus on Photonics and Imaging

Focus on Software

Focus on Software

Annual Meeting, Ottawa, Ontario, 2004

Annual Meeting, Ottawa, Ontario, 2004

Focus on Software

Focus on Software

Focus on Analytical Instruments

Focus on Analytical Instruments

Continuity and Transport Properties of Shale Smear in Sedimental Basin

To quantify the transport properties of faults, a series of laboratory experiments is performed on permeability change during deformation of simulated shale smear. The fluid sealing potential of faults is important for better understanding of the hydrocarbon migrationaccumulation process and abnormal fluid pressure build-up below faults in a sedimentary basin. One of the possible mechanisms of the fault sealing process is role of shale smear characterized by migration of mudstone into the fault plane, forming a barrier to the fluid flow. To evaluate the sealing potential of a fault, it is necessary to develop tools and methodology to monitor the permeability of faults during deformation, and to compare experimental results with field observations. First, the author investigated the smear continuity developed in deltaic sediments on Airport Road outcrop, Miri, Sarawak, Malaysia. At this site, the critical shale smear factor (SSFcrt : showing maximum continuous smear at a shale-thickness/throw data) was approximately 8, which is larger than previously reported data at other sites. Then the author conducted experiments using sandstone-shale interbedded specimens obtained from the Miri formation. The natural specimen was inserted into a part of an artificial fault of pre-cut Berea sandstone, and the permeability of the sample was measured. Similar to results of the previous experiments on siltstone by Takahashi (2003), permeability show the following three stages : (1) Regime 1, rapid reduction due to compaction prior to faulting, (2) Regime 2, constant and relatively lower permeability, and (3) Regime 3, permeability recovery caused by erosion of smear. Except for an experiment with a sandy specimen, moreover, all experiments show permeability recovery of 0.5 orders of magnitude after Regime 1. This characteristic permeability change from Regime 1 to Regime 2 for mud-rich specimens appears to indicate dilation induced by fault propagation in the over-consolidated specimen at starting fault sliding. Fault structures observed from the outcrop and from experimental products are similar. The laboratory experiments can thus accurately reproduce the mechanism of fault sealing by shale smear, suggesting that experimental studies are essential to understand fault sealing by shale smear.

The Canadian Phytopathological Society Annual Meeting, Waterton Lakes National Park, Alberta, 2002

The Canadian Phytopathological Society Annual Meeting, Waterton Lakes National Park, Alberta, 2002

Focus on Lasers and Optics

Focus on Lasers and Optics

A THREE-DIMENSIONAL LAMINATED PLATE FINITE ELEMENT WITH HIGH-ORDER ZIG-ZAG SUBLAMINATE APPROXIMATIONS

International Journal of Computational Engineering ScienceVol. 02, No. 01, pp. 137-180 (2001) No AccessA THREE-DIMENSIONAL LAMINATED PLATE FINITE ELEMENT WITH HIGH-ORDER ZIG-ZAG SUBLAMINATE APPROXIMATIONSY. C. YIP and R. C. AVERILLY. C. YIPEngineering & Development Centre, Singapore Technologies Aerospace Ltd., 540 Airport Road, Paya Lebar, Singapore 539938, Singapore Search for more papers by this author and R. C. AVERILLDepartment of Materials Science and Mechanics, Michigan State University, East Lansing, MI 48824-1226, USA Search for more papers by this author https://doi.org/10.1142/S1465876301000271Cited by:8 Previous AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractThis paper describes a new laminated composite plate theory and associated finite element model that allow variable through-the-thickness refinement, as needed, to capture higher-order thickness effects and interlaminar stresses in laminated composite and sandwich panels. The theory and finite element model utilize a new zig-zag sublaminate concept, in which each computational layer (or sublaminate) contains several, even many, physical layers. Within each sublaminate, a high-order zig-zag kinematic assumption is employed, providing very high accuracy, even when the entire laminate is modeled using only a single sublaminate. The accuracy and efficienty of the model are thus adaptable, depending upon the number of sublaminates used. In order to facilitate through-the-thickness refinement, the finite element model is cast in the form of an eight-noded brick-type element, with displacements and rotations as nodal degrees-of-freedom. At interlaminar element boundaries, interlaminar shear traction degrees-of-freedom are also present, so that transverse shear stress continuity can be enforced through the entire thickness of the laminate, irrespective of the thickness discretization chosen. Numerical examples are presented to demonstrate the effectiveness of the current model for the analysis of laminated composite and sandwich panels that are very thick or thin.Keywords:laminatecompositezig-zagsublaminatefinite elementplate theory FiguresReferencesRelatedDetailsCited By 8Bending analysis of composite laminated and sandwich structures using sublaminate variable-kinematic Ritz modelsM. D’Ottavio, L. Dozio, R. Vescovini and O. Polit1 Nov 2016 | Composite Structures, Vol. 155Multilayered Plate Model with “Adaptive” Representation of Displacements and Temperature Across the Thickness and Fixed D.O.F.Ugo Icardi1 Sep 2011 | Journal of Thermal Stresses, Vol. 34, No. 9Multilayered shell model with variable representation of displacements across the thicknessU. Icardi and L. Ferrero1 Jan 2011 | Composites Part B: Engineering, Vol. 42, No. 1Layerwise zig-zag model with selective refinement across the thicknessU. Icardi and L. Ferrero26 October 2010 | International Journal for Numerical Methods in Engineering, Vol. 84, No. 9Layerwise mixed element with sublaminates approximation and 3D zig-zag field, for analysis of local effects in laminated and sandwich compositesU. Icardi6 September 2006 | International Journal for Numerical Methods in Engineering, Vol. 70, No. 1plate element for global/local analysis of multilayered composites, based on a 3D zig-zag model and strain energy updatingU. Icardi1 Oct 2005 | International Journal of Mechanical Sciences, Vol. 47, No. 10Applications of Zig-Zag Theories to Sandwich BeamsU. Icardi1 Jan 2003 | Mechanics of Advanced Materials and Structures, Vol. 10, No. 1Finite element linear and nonlinear, static and dynamic analysis of structural elements, an addendumJaroslav Mackerle1 Aug 2002 | Engineering Computations, Vol. 19, No. 5 Recommended Vol. 02, No. 01 Metrics History Keywordslaminatecompositezig-zagsublaminatefinite elementplate theoryPDF download

Baba's Farm

The blue dry-docked sailboat at the side of Airport Road, just north of Caledon East, has a new coat of paint.

Rocks from Space

Research Article| January 01, 1995 Rocks from Space TERRY STRANSKY TERRY STRANSKY Senior Geologist H. C. Nutting Company, 4120 Airport Road, Cincinnati, OH 45226 Search for other works by this author on: GSW Google Scholar Environmental & Engineering Geoscience (1995) I (1): 115. https://doi.org/10.2113/gseegeosci.I.1.115 Article history first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation TERRY STRANSKY; Rocks from Space. Environmental & Engineering Geoscience 1995;; I (1): 115. doi: https://doi.org/10.2113/gseegeosci.I.1.115 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyEnvironmental & Engineering Geoscience Search Advanced Search This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

Sense and Sensibility

As head of the European bureau of Meeting Planners International and marketing director of the European Federation of Conference Towns, Geoffrey Smith has checklists galore for assessing conference facilities and services. For selecting a hotel, he asks such questions as: How handy is it for airport transfers and road and rail arrivals? Is the car parking accommodation satisfactory? How many spaces are there? What public transport and taxi services are available? How many function rooms and sleeping rooms are there? How attractive is the price? What can be negotiated? Is it possible to benefit from seasonal and group rates? What other meetings are scheduled at the venue at the same time? (An overworked and exhausted staff is not desirable). Which hotel executive will be responsible for the event? Will he be easy to work with? Is the property handy for places which delegates or accompanying persons may want to visit — shops, entertainment, cultural attractions, restaurants, etc? Does it have a pool, gymnasium, sauna, nearby jogging, tennis, golf? Are the bar prices and hours acceptable? Will the hotel provide a special check‐in desk for your delegates, with quick service or pre‐booking? Will the meeting registration desk be well sited? What about in‐house restaurants, coffee shop, menus and prices? Does it cater for handicapped people? Are the halls and public rooms fresh and clean? Is the front office a cheerful place? Is the surrounding area safe at night? If the conference includes overseas delegates, do some staff speak their languages?

First Records of Chlordane-Related Mortality in Wild Birds

LAWRENCE J. BLUS, U.S. Fish and Wildlife Service, Patuxent Wildlife Research Center, 480 SW Airport Road, Corvallis, OR 97333; OLIVER H. PATTEE, U.S. Fish and Wildlife Service, Patuxent Wildlife Research Center, Laurel, MD 20708; CHARLES J. HENNY, U.S. Fish and Wildlife Service, Patuxent Wildlife Research Center, 480 SW Airport Road, Corvallis, OR 97333; and RICHARD M. PROUTY, U.S. Fish and Wildlife Service, Patuxent Wildlife Research Center, Laurel, MD 20708.

Case histories of some effects of solution/dissolution in the Keuper rocks of the Severn Estuary region

Summary The Keuper strata in the Severn Estuary region can be divided into two fades, a scree/rock fan deposit known as the Dolomitic Conglomerate and a basin facies referred to as the Keuper Marl. Both facies contain gypsum or evidence indicating that gypsum was once present. As a result of diagenetic changes, such as the release of strontium when aragonite changes to calcite, and also calcite to dolomite, in some areas the initial gypsum, anhydrite accumulation has been replaced by celestine. Recent construction works have indicated that in parts of the area cavities occur in the Keuper rocks. Some of these cavities have caused engineering problems. Those near the top of the Keuper Marl in the Airport Road tunnel caused machine stress due to the Dosco boom attempting to deflect to the areas of nil resistance. In addition, there was some overbreak and increased grout take. Data obtained on samples from Llandough Quarry, Cardiff are presented to support the hypothesis that where dolomitic strata combine with gypsum, dedolomitization may occur resulting in degraded, very weak mudstone. Pronounced dolomitised ‘veins’ occur in one area of the quarry; these are described and X-ray diffraction traces are presented to support dolomitization from a joint outwards.

Mid-Atlantic Coast Osprey Population: Present Numbers, Productivity, Pollutant Contamination, and Status

An estimated 233 16 (95% C.I.) pairs of ospreys (Pandion haliaetus) nested in coastal New Jersey, Delaware, Maryland, and Virginia in 1975. The present populations were considerably smaller than those reported for selected locations at the turn of the century in these four states. The New Jersey population has continued to decline during the last 25 years, although it showed some signs of improved production in 1974-75. The insecticide DDT was used intensively in New Jersey for mosquito control from about 1946 until 1966; its use in the other states was much less intensive, and of shorter duration. In a segment of the Delaware population of ospreys, production was normal and numbers increased slightly in 1970-75. Fragmentary information from Maryland suggests that the number of pairs nesting on duck blinds was about the same in 1958 and 1975. The population in coastal Virginia north of Cape Henry increased from 1970 to 1975. DDE residues in osprey eggs were highest in the areas showing the greatest population declines and the lowest production rates. J. WILDL. MANAGE. 41(2):254-265 Reduced productivity and sharp declines in osprey populations were first reported for the Connecticut River colony (Ames and Mersereau 1964). In 1964-75, populations of nesting ospreys were studied in at least 19 states, 3 provinces in Canada, and Mexico. In reviewing the North American osprey populations, Henny (1977) stated, Improvement [in production] in affected populations, mainly those along the Atlantic Coast and in the Great Lakes region, began in the late 1960s and is continuing in the 1970s. . . . Although some of the most severely affected populations are still not producing at normal rates, the pattern of improvement and an increase in management activities, including provision of nesting platforms and establishment of osprey management zones, allow cautious optimism about the future of the species in North America. He believed the recent improvement in production was due to the reduced use of DDT and other persistent pollutants. Published quantitative information from much of the area included in this study is sparse. Furthermore, our mid-Atlantic Coast study area lies between Connecticut and Long Island to the north, a region which showed extremely poor production and population declines in the 1960's and early 1970's (Ames and Mersereau 1964, Puleston 1975), and the coastal Carolinas to the south, where production has been normal and population numbers have remained unchanged (Henny and Noltemeier 1975). We review here the information on osprey populations within the mid-Atlantic region, and attempt to put into perspective the distribution and abundance of nesting ospreys in 1975. This is the third year of aerial surveys along the Atlantic Coast, which began with Chesapeake Bay in 1973 (Henny et al. 1974) and extended to coastal North and South Carolina in 1974 (Henny and 1 Present address: Patuxent Wildlife Research Center, 480 S.W. Airport Road, Corvallis, Oregon 97330. 254 J. Wildl. Manage. 41(2):1977 This content downloaded from 157.55.39.92 on Wed, 22 Jun 2016 05:11:56 UTC All use subject to http://about.jstor.org/terms MID-ATLANTIC COASTAL OSPREYS Henny et al. 255 Noltemeier 1975). E. L. Ferguson was the pilot for the present survey and J. W. Via provided unpublished data from coastal Virginia. We thank them for their cooperation and assistance.

Equipment Note The Use of Real-Time Simulation by Means of Animation Film As an Analytical Design Tool in Certain Spatial-Temporal Situations.

An animated-film sequence simulating the significant visual aspects of a vehicular trip on a projected but nonexistent airport road system was produced in order to provide a direct, essentially realistic, and immediately comprehensible means of s 'experiencing ' the process of data perception and response required in negotiating the road system safely and accurately to a selected destination. The film objectively and incontrovertibly confirmed the existence of a problem caused by a suspected ergonomic defect in the road-system design. It seems unlikely that such could have been confirmed to the satisfaction of all concerned by the use of any other method before the actual road system was completed and its negotiation could be experienced in situ. The history of this project suggests that film-animation simulation can be a valuable design tool in situations where the fourth dimension is an important factor. Further, it suggests that live-action film of existing situations can be a more valuable aid in analysing and correcting design defects than has been generally appreciated.