Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Schoenbach, K.H. Shu Xiao Camp, J.T. |
| Copyright Year | 2008 |
| Description | Author affiliation: Frank Reidy Res. Center for Bioelectrics, Old Dominion Univ., Norfolk, VA (Schoenbach, K.H.; Shu Xiao; Camp, J.T.) |
| Abstract | The use of prolate-spheroidal reflectors as part of a sub-nanosecond Impulse Radiating Antenna (IRA) allows us to generate near-field electric fields with high spatial resolution in biological tissue. If the power of such ultrashort electrical pulses is very high, it becomes possible to deposit substantial electromagnetic energy into deep-lying tissue, even at the rather high conductivity and consequently strong absorption of most tissues. This electromagnetic energy may be used either to stimulate bioelectric effects, such as pulsed electric field induced apoptosis of tumor cells, or to generate local hyperthermia. Besides using ultrashort electrical pulses for medical therapies, the use of Impulse Radiating Antennas in the hundred-picosecond temporal range leads to medical imaging methods with sub-centimeter spatial resolution. The method is based on the measurement of changes in the complex permittivity of tissue, and may complement imaging methods based on the measurement of other physical parameters. For example, breast tumors are characterized by conductivity and permittivity approximately five times higher than surrounding healthy tissue. Our experimental work focuses on the design and construction of subnanosecond pulse generators, which has resulted in a 150 ps, 50 kV, 50 Ohm generator. The design of prolate-spheroidal antennas for these medical applications is pursued in cooperation with C. Baum at the University of New Mexico. A three-dimensional, time-dependent electromagnetic code (MAGIC) is used to model the electric field distribution in tissue. The pulse power research efforts are complemented by studies on the biological effect of subnanosecond electrical pulses. |
| Starting Page | 60 |
| Ending Page | 60 |
| File Size | 159913 |
| Page Count | 1 |
| File Format | |
| ISBN | 9781424415342 |
| DOI | 10.1109/IPMC.2008.4743576 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-05-27 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Pulse generation Antenna measurements Permittivity measurement Medical treatment Electromagnetic radiation Conductivity EMP radiation effects Electromagnetic fields Spatial resolution Biomedical imaging |
| 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...
|