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Institution

North Carolina State University

EducationRaleigh, North Carolina, United States
About: North Carolina State University is a education organization based out in Raleigh, North Carolina, United States. It is known for research contribution in the topics: Population & Thin film. The organization has 44161 authors who have published 101744 publications receiving 3456774 citations. The organization is also known as: NCSU & North Carolina State University at Raleigh.
Topics: Population, Thin film, Silicon, Gene, Poison control


Papers
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Journal Article
TL;DR: In the engineering classroom of 2000, what do we see? To the best of our knowledge, it is the same as what we would have seen in 1970, or 1940.
Abstract: When we walk into an arbitrarily chosen engineering classroom in 2000, what do we see? Toooften the same thing we would have seen in 1970, or 1940. The professor stands at the front of the room,copying a derivation from his notes onto the board and repeating aloud what he writes. The students sitpassively, copying from the board, reading, working on homework from another class, or daydreaming. Once in a while the professor asks a question: the student in the front row who feels compelled to answeralmost every question may respond, and the others simply avoid eye contact with the professor until theawkward moment passes. At the end of the class students are assigned several problems that require themto do something similar to what the professor just did or simply to solve the derived formula for somevariable from given values of other variables. The next class is the same, and so is the next one, and the oneafter that.There are some differences from 30 years ago, of course. The homework assignments require theuse of calculators instead of slide rules, or possibly computers used as large calculators. The math is moresophisticated and graphical solution methods are not as likely to come up. The board is green or white ormaybe an overhead projector is used. Nevertheless, little evidence of anything that has appeared in articlesand conferences on engineering education in the past half-century can be found in most of our classroomsand textbooks. In recent years, however, there have been signs of change.

415 citations

Journal ArticleDOI
TL;DR: This survey paper focuses on Web information retrieval methods that use eigenvector computations, presenting the three popular methods of HITS, PageRank, and SALSA.
Abstract: Web information retrieval is significantly more challenging than traditional well-controlled, small document collection information retrieval. One main difference between traditional information retrieval and Web information retrieval is the Web's hyperlink structure. This structure has been exploited by several of today's leading Web search engines, particularly Google and Teoma. In this survey paper, we focus on Web information retrieval methods that use eigenvector computations, presenting the three popular methods of HITS, PageRank, and SALSA.

415 citations

Journal ArticleDOI
TL;DR: Clinical problems at parturition and postpartum lowered reproductive performance in both breeds and there was a slight antagonism between milk yield and reproductive performance (days open) in Jerseys but not in Holsteins.

413 citations

Journal ArticleDOI
TL;DR: A survey of two new technologies which are still in the experimental stage-optical packet switching and optical burst switching-and comment on their suitability for transporting IP traffic.
Abstract: Wavelength-division multiplexing appears to be the solution of choice for providing a faster networking infrastructure that can meet the explosive growth of the Internet. Several different technologies have been developed so far for the transfer of data over WDM. We survey two new technologies which are still in the experimental stage-optical packet switching and optical burst switching-and comment on their suitability for transporting IP traffic.

413 citations

Journal ArticleDOI
TL;DR: In this paper, the mechanism of formation of double pentagon-heptagon defect pairs in carbon nanotubes has been investigated via quantum and classical simulations, and the properties of carbon nano-graphite networks under uniaxial tension have been investigated.
Abstract: Static and dynamical properties of carbon nanotubes under uniaxial tension have been investigated via quantum and classical simulations. In strained nanotubes at high temperatures we observe the spontaneous formation of double pentagon-heptagon defect pairs. Tubes containing these defects are energetically preferred to uniformly stretched tubes at strains greater than 5%. These topological defects act as nucleation centers for the formation of dislocations in the originally ideal graphite network, and they constitute the onset of a plastic deformation of the carbon nanotube. The mechanism of formation of such defects, their energetics, and transformations are described. @S0163-1829~98!50208-1# Since their discovery in 1991, 1 carbon nanotubes have attracted much interest due to their peculiar character at a crossroad between traditional carbon fibers and fullerenes. They hold substantial promise for use as superstrong fibers, catalysts, and as components of novel electronic devices. Despite the potential impact that new composites based on carbon nanotubes would have in many areas of science and industry, very little is known about the microscopic origin of their strength and a complete theoretical understanding of their behavior is desirable. The excellent resistance of carbon nanotubes to bending has already been observed experimentally and studied theoretically. 2‐4 The remarkable flexibility of the hexagonal network allows the system to sustain very high bending angles, kinks, and highly strained regions. In addition, nanotubes are observed to be extremely resilient, suggesting that even largely distorted configurations ~axial compression, twisting! can be due to elastic deformations with no atomic defects involved. 2,3,5,6

412 citations


Authors

Showing all 44525 results

NameH-indexPapersCitations
Yi Cui2201015199725
Jing Wang1844046202769
Rodney S. Ruoff164666194902
Carlos Bustamante161770106053
David W. Johnson1602714140778
Joseph Wang158128298799
David Tilman158340149473
Jay Hauser1552145132683
James M. Tour14385991364
Joseph T. Hupp14173182647
Bin Liu138218187085
Rudolph E. Tanzi13563885376
Richard C. Boucher12949054509
David B. Allison12983669697
Robert W. Heath128104973171
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023160
2022652
20215,262
20205,458
20194,888
20184,522