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Articles 5731 - 5760 of 8613
Full-Text Articles in Entire DC Network
Design Of Diffractive Optical Elements: Optimality, Scale And Near-Field Diffraction Considerations, Parker Kuhl, Okan K. Ersoy
Design Of Diffractive Optical Elements: Optimality, Scale And Near-Field Diffraction Considerations, Parker Kuhl, Okan K. Ersoy
Department of Electrical and Computer Engineering Technical Reports
In this research, two related research topics were investigated. The first one is the use of scalar diffraction theory for the purpose of simulating and implementing diffractive optical elements (DOEs). The main focus was on the optimal design of computer- generated holograms (CGHs). Two existing methods were combined to improve the reconstructed image of a CGH. The new method combines the Optimal Decimation-in-Frequency Iterative Interlacing Technique (ODIFIIT) with the Lohmann coding scheme. Simulations indicate that the reconstructed image produced with this method has less error than reconstructions with either method alone. Physical reconstructions were performed and compared to the simulated …
Harper & Brothers’ Family And School District Libraries, 1830-1846., Robert S. Freeman
Harper & Brothers’ Family And School District Libraries, 1830-1846., Robert S. Freeman
Libraries Faculty and Staff Scholarship and Research
In the 1830s, at the dawn of mass-market publishing, J. & J. Harper of New York began publishing several libraries, including Harper’s Family Library and Harper’s School District Library. A “library” in this sense is a series or set of uniformly bound and uniformly priced books issued by the same publisher. A leading publisher and a major force in the broad religious and social reform movements of the period, the Harper brothers helped to shape education in American homes and schools. As Methodists they were advocates of reading for moral improvement. As innovative publishers, they made full use of the …
On Query Processing And Optimality Using Spectral Locality-Preserving Mappings, Mohamed F. Mokbel, Walid G. Aref
On Query Processing And Optimality Using Spectral Locality-Preserving Mappings, Mohamed F. Mokbel, Walid G. Aref
Department of Computer Science Technical Reports
No abstract provided.
Scheduling For Shared Window Joins Over Data Streams, Moustafa A. Hammad, Michael J. Franklin, Walid G. Aref, Ahmed K. Elmagarmid
Scheduling For Shared Window Joins Over Data Streams, Moustafa A. Hammad, Michael J. Franklin, Walid G. Aref, Ahmed K. Elmagarmid
Department of Computer Science Technical Reports
No abstract provided.
Beta Testing Implementation Of The Purdue Time Domain Reflectometry (Tdr) Method For Soil Water Content And Density Measurement, Vincent P. Drnevich, Xiong Yu, Janet Elaine Lovell
Beta Testing Implementation Of The Purdue Time Domain Reflectometry (Tdr) Method For Soil Water Content And Density Measurement, Vincent P. Drnevich, Xiong Yu, Janet Elaine Lovell
JTRP Technical Reports
The Purdue TDR method is a new technology for simultaneously measuring soil water content and dry density insitu. An ASTM standard for using TDR to measure soil water content and dry density based on Purdue TDR method was approved during the time span of this project and is designated ASTM D6780. The primary objective of this study was to take the Purdue TDR Method to the point where it is widely field tested by users on a broad spectrum of soils around the country. This goal was achieved by involving researchers at other universities and practitioners in federal and state …
The Effectiveness Of Maintenance And Its Impact On Capital Expenditures, Samuel Labi, Kumares C. Sinha
The Effectiveness Of Maintenance And Its Impact On Capital Expenditures, Samuel Labi, Kumares C. Sinha
JTRP Technical Reports
With ever increasing traffic loadings, highway pavement maintenance needs continue to outpace the availability of resources, and transportation agencies seek cost-effective maintenance practices. This study investigated the effectiveness of maintenance treatments in the short-term and the cost effectiveness of maintenance strategies over entire pavement life. The study also analyzed the relationships and trade-offs between maintenance and capital investments such as pavement rehabilitation, and the trade-offs between preventive and corrective maintenance. These analyses were carried out through a work sequence that included analyses of historical trends, literature review, and a questionnaire survey. The study found that there are significant benefits associated …
Imaging And Locating Buried Utilities, Hyung Seok Jeong, Carlos A. Arboleda, Dulcy M. Abraham, Daniel W. Halpin, Leonhard E. Bernold
Imaging And Locating Buried Utilities, Hyung Seok Jeong, Carlos A. Arboleda, Dulcy M. Abraham, Daniel W. Halpin, Leonhard E. Bernold
JTRP Technical Reports
The urban underground has become a spider’s web of utility lines, including phones, electricity, gas, cable TV, fiber optics, traffic signals, street lighting circuits, drainage and sanitary sewers and water mains. Utility damages during construction are very significant and on the rise, resulting in construction delays, design changes, claims, property damages, service breakdowns, disruption of neighboring businesses and even injuries and lost lives. The American Institute of Constructors (AIC) reported that damage to utility lines is the third most significant crisis for contractors. The state-of-the-art and the state-of-the-practice imaging technologies that have potential for being applied in locating underground utilities …
Initial Study For Cost-Effectiveness Of Joint/Crack Sealing, Chuanxin Fang, Khaled A. Galal, David R. Ward, John E. Haddock
Initial Study For Cost-Effectiveness Of Joint/Crack Sealing, Chuanxin Fang, Khaled A. Galal, David R. Ward, John E. Haddock
JTRP Technical Reports
The sealing and resealing of joints and cracks in PCC, HMA, and composite pavements is assumed to be an important component of pavement maintenance. Recently this practice has been challenged by research indicating that sealing may not be cost-effective. The Indiana Department of Transportation currently spends approximately four million dollars annually to perform joint/crack sealing. The primary objective of the research presented in this report is to investigate the costeffectiveness of joint/crack sealing in relation to pavement performance. The results of a mail survey showed that most states, including Indiana, do not have quantitative justification for sealing policies, nor do …
Development Of Vehicle Platoon Distribution Models And Simulation Of Platoon Movements On Indiana Rural Corridors, Yi Jiang, Shou Li, Daniel E. Shamo
Development Of Vehicle Platoon Distribution Models And Simulation Of Platoon Movements On Indiana Rural Corridors, Yi Jiang, Shou Li, Daniel E. Shamo
JTRP Technical Reports
Since the 1980s, traffic volumes have experienced a rapid growth of approximately 30% in Indiana. Traffic data indicates that more than 70% of vehicles travel in platoons on Indiana highway corridors in the vicinity of urban areas. At a rural highway intersection consisting of a major road with high traffic volume and a minor road with low traffic volume, it is very common that the green time cannot be used efficiently, especially when the vehicle detectors on the major road are imbedded close to the intersection. In Indiana, most of the traffic signal timing systems operate well. However, these systems …
An Efficient Burst-Arrival And Batch- Departure Algoriths For Round-Robin Service, Jorge R. Ramos, Janche Sang
An Efficient Burst-Arrival And Batch- Departure Algoriths For Round-Robin Service, Jorge R. Ramos, Janche Sang
Department of Computer Science Technical Reports
No abstract provided.
Computer Sciences At Purdue University 1962 To 2000, John R. Rice, Saul Rosen
Computer Sciences At Purdue University 1962 To 2000, John R. Rice, Saul Rosen
Department of Computer Science Technical Reports
No abstract provided.
Performance Of Multi-Dimensional Space- Filling Curves, Mohamed F. Mokbel, Walid G. Aref, Ibrahim Kamel
Performance Of Multi-Dimensional Space- Filling Curves, Mohamed F. Mokbel, Walid G. Aref, Ibrahim Kamel
Department of Computer Science Technical Reports
No abstract provided.
Periodicity Detection In Time Series Databases, Mohamed G. Elfeky, Walid G. Aref, Mikhail J. Atallah
Periodicity Detection In Time Series Databases, Mohamed G. Elfeky, Walid G. Aref, Mikhail J. Atallah
Department of Computer Science Technical Reports
No abstract provided.
Multi-Dimenstional Traversals For Normalization Constants, Jorge R. Ramos, Vernon J. Rego
Multi-Dimenstional Traversals For Normalization Constants, Jorge R. Ramos, Vernon J. Rego
Department of Computer Science Technical Reports
No abstract provided.
Evaluating Probabilistic Queries Over Imprecise Data, Reynold Cheng, Dmitri V. Kalashnikov, Sunil Prabhakar
Evaluating Probabilistic Queries Over Imprecise Data, Reynold Cheng, Dmitri V. Kalashnikov, Sunil Prabhakar
Department of Computer Science Technical Reports
No abstract provided.
Evaluating Ther Capaility Of Information Technology To Prevent Adverse Drug Events: A Computer Simulation Approach, James G. Anderson, Stephen Jay, Marilyn Anderson, Thaddeus Hunt
Evaluating Ther Capaility Of Information Technology To Prevent Adverse Drug Events: A Computer Simulation Approach, James G. Anderson, Stephen Jay, Marilyn Anderson, Thaddeus Hunt
RCHE Publications
Background: The annual cost of morbidity and mortality due to medication errors in the U.S. has been estimated at $76.6 billion. Information technology implemented systematically has the potential to significantly reduce medication errors that result in adverse drug events (ADEs). Objective: To develop a computer simulation model that can be used to evaluate the effectiveness of information technology applications designed to detect and prevent medication errors that result in adverse drug effects. Methods: A computer simulation model was constructed representing the medication delivery system in a hospital. STELLA, a continuous simulation software package, was used to construct the model. Parameters …
Synthesizing Distributed Controllers For The Safe Operation Of Connectedspaces, Baskar Sridharan, Aditya P. Mathur, Kai-Yuan Cai
Synthesizing Distributed Controllers For The Safe Operation Of Connectedspaces, Baskar Sridharan, Aditya P. Mathur, Kai-Yuan Cai
Department of Computer Science Technical Reports
No abstract provided.
Querying Imprecise Data In Moving Object Environments, Reynold Cheng, Sunil Prabhakar, Dmitri V. Kalashnikov
Querying Imprecise Data In Moving Object Environments, Reynold Cheng, Sunil Prabhakar, Dmitri V. Kalashnikov
Department of Computer Science Technical Reports
No abstract provided.
Synthesizing A Safety Controller For Connectedspaces Using Supervisory Control, Baskar Sridharan, Aditya P. Mathur, Kai-Yuan Cai
Synthesizing A Safety Controller For Connectedspaces Using Supervisory Control, Baskar Sridharan, Aditya P. Mathur, Kai-Yuan Cai
Department of Computer Science Technical Reports
No abstract provided.
Similarity Joins For Low-And-High Dimensional Data, Dmitri V. Kalashnikov, Sunil Prabhakar
Similarity Joins For Low-And-High Dimensional Data, Dmitri V. Kalashnikov, Sunil Prabhakar
Department of Computer Science Technical Reports
No abstract provided.
Development Of An Infrastructure For The Management Of Smart Homes, Ramkumar Natarajan, Aditya P. Mathur
Development Of An Infrastructure For The Management Of Smart Homes, Ramkumar Natarajan, Aditya P. Mathur
Department of Computer Science Technical Reports
No abstract provided.
Toward A Theory Of Differentiated Services, Huan Ren, Kihong Park
Toward A Theory Of Differentiated Services, Huan Ren, Kihong Park
Department of Computer Science Technical Reports
No abstract provided.
Edge To Edge Measurement-Base Distributed Network Monitoring, Ahsan Habib, Maleq Khan, Bharat Bhargava
Edge To Edge Measurement-Base Distributed Network Monitoring, Ahsan Habib, Maleq Khan, Bharat Bhargava
Department of Computer Science Technical Reports
No abstract provided.
Similarity Join For Low- And High-Dimensional Data, Dmitri V. Kalashnikov, Sunil Prabhakar
Similarity Join For Low- And High-Dimensional Data, Dmitri V. Kalashnikov, Sunil Prabhakar
Department of Computer Science Technical Reports
No abstract provided.
On Efficient On-Line Grouping Of Flows With Shared Bottlenecks At Loaded Servers, Ossama Younis, Sonia Fahmy
On Efficient On-Line Grouping Of Flows With Shared Bottlenecks At Loaded Servers, Ossama Younis, Sonia Fahmy
Department of Computer Science Technical Reports
No abstract provided.
Performance Study On Two Distance Vector Routing Protocols For Mobile Ad Hoc Networks, Yi Lu, Weichao Wang, Yuhui Zhong, Bharat Bhargava
Performance Study On Two Distance Vector Routing Protocols For Mobile Ad Hoc Networks, Yi Lu, Weichao Wang, Yuhui Zhong, Bharat Bhargava
Department of Computer Science Technical Reports
No abstract provided.
Quality Of Service Provisioning For Composable Routing Elements, Seung Chul Han, Puneet Zaroo, David K.Y. Yau, Prem Gopalam, John C. S. Lui
Quality Of Service Provisioning For Composable Routing Elements, Seung Chul Han, Puneet Zaroo, David K.Y. Yau, Prem Gopalam, John C. S. Lui
Department of Computer Science Technical Reports
No abstract provided.
On The Effectiveness Of Movement Prediction To Reduce Energy Comsumption In Wireless Communication, Srijan Chakraborty, David K.Y. Yau, John C. S. Lui
On The Effectiveness Of Movement Prediction To Reduce Energy Comsumption In Wireless Communication, Srijan Chakraborty, David K.Y. Yau, John C. S. Lui
Department of Computer Science Technical Reports
No abstract provided.
Distributed Collaborative Key Agreement Protocols For Dynamic Peer Groups, Patrick P. C. Lee, John C.S. Lui, David K.Y. Yau
Distributed Collaborative Key Agreement Protocols For Dynamic Peer Groups, Patrick P. C. Lee, John C.S. Lui, David K.Y. Yau
Department of Computer Science Technical Reports
No abstract provided.
Efficient Evaluation Of Continous Range Queries On Movng Objects, D.V. Kalashnikov, Sunil Prabhakar, Walid G. Aref, Susanne E. Hambrusch
Efficient Evaluation Of Continous Range Queries On Movng Objects, D.V. Kalashnikov, Sunil Prabhakar, Walid G. Aref, Susanne E. Hambrusch
Department of Computer Science Technical Reports
No abstract provided.