Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Puleo, J.A. Hayden, J.T. |
| Copyright Year | 2009 |
| Description | Author affiliation: University of Delaware Center for Applied Coastal Research Ocean Engineering Building Newark, DE 19716 USA (Puleo, J.A.; Hayden, J.T.) |
| Abstract | The Indian River Inlet is the only connection between the Atlantic Ocean and Rehoboth and Indian River Bays. The inlet has been problematic from an engineering standpoint since locals and state agencies first tried to make the opening permanent in the late 1920's. Localized scour is of particular concern to state officials due to its proximity to supporting bridge piers for Highway 1 that serves as a vital link between towns north and south of the inlet and as a hurricane evacuation route. While a new bridge is under construction and slated to be completed in 2011, engineers are concerned over the safety of the present bridge due to ongoing scour. In response to the progression of the scour on the seaward side of the bridge, a near real-time scour monitoring system was developed and deployed in November 2008. The system consists of two 250 kHz Marine Electronics 3D profiling sonars and two 470 kHz Nortek Continental Acoustic Doppler Current Profilers (ADCP). The sonar consists of an acoustic transducer in a sealed, oil-filled dome that is controlled by precise step motors. After a complete scan, assuming the maximum range settings have been used, the sonar returns a full hemispherical scan of the inlet bottom within its "viewing" range. One of each sensor type is paired together and housed in a custom-built stainless steel frame and installed below mean lower low water on each of the seaward bridge piers. Each sensor pair is controlled by a single land-based computer using task scheduling software to wake a sensor from sleep mode and initiate a data capture sequence. At the end of a sampling sequence data are automatically transferred through a wireless link to offsite computers for analysis, including merging the individual sonar data sets, and dissemination. Through comparison to recent USACE multibeam surveys, the initial data shows that the scour hole is well-resolved. In addition, preliminary analysis from ADCP data suggests that macro-turbulence during ebbing tide associated with irregular bottom topography may be a controlling factor in the growth of the scour hole. |
| Starting Page | 1 |
| Ending Page | 10 |
| File Size | 3819195 |
| Page Count | 10 |
| File Format | |
| ISBN | 9781424449606 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-10-26 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | MTS |
| Subject Keyword | Real time systems Monitoring Rivers Bridges Sonar Oceans Road transportation Cities and towns Hurricanes Safety |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|