Results 61 to 70 of about 115,388 (320)

Piezo‐Phototronic PVDF/HfO2/Nano‐Cu Heterostructured Thin Film for Flexible Self‐Powered Multimodal Sensing

Advanced Science, EarlyView.
Electrospinning a composite of PVDF, HfO2, and nano‐Cu transforms the discrete precursors into a continuous nanofiber mesh, forming a multi‐interface heterostructure with embedded nanoparticles. The presence of HfO2 and nano‐Cu at the fiber interfaces induces a highly aligned β‐phase, which enhances piezoelectric crystallinity and improves the material'
Jiawei Gu, Qiongle Peng, Xuanqi Zhong, Yi Zheng, Zhiqiang Ma, Xiaoxian Song, Ruihuan Zhang, Bao Liu, Yanhu Zhang, Zhengbao Yang   +9 more
wiley   +1 more source

Two-Term Disjunctions on the Second-Order Cone

, 2014
Balas introduced disjunctive cuts in the 1970s for mixed-integer linear programs. Several recent papers have attempted to extend this work to mixed-integer conic programs.
Kilinc-Karzan, Fatma, Yildiz, Sercan
core   +1 more source

Semiconducting THO‐C3N Monolayers for Ultrahigh Anisotropic Carrier Mobility

Advanced Science, EarlyView.
A precise site‐specific N‐doping strategy that drives a secondary electronic transition in net W is proposed, enabling the electronic properties transition from metal to Dirac semimetal and ultimately to semiconductor. The obtained THO‐C3N‐2 and THO‐C3N‐3 semiconductors exhibit high carrier mobilities and pronounced mobility anisotropy, with THO‐C3N‐2 ...
Rui Tan, Xueqing Chen, Jifeng Luo, Zhe Xue, Zehou Li, Xiaolin Wei, Zhenkun Tang, Gaokuo Zhong   +7 more
wiley   +1 more source

Extension of Convex Function [PDF]

, 2013
We study the local and global versions of the convexity, which is closely related to the problem of extending a convex function on a non-convex domain to a convex function on the convex hull of the domain and beyond the convex hull.
Yan, Min
core   +1 more source

Random Convex Hulls and Extreme Value Statistics

, 2009
In this paper we study the statistical properties of convex hulls of $N$ random points in a plane chosen according to a given distribution. The points may be chosen independently or they may be correlated.
A. Goldman, A. Goldman, A. Lakshminarayan, A. Rényi, A. Rényi, A.M. Odlyzko, Alain Comtet, B. Bhattacharya, B. Brown, B. Derrida, B. Derrida, B. Efron, B. Gnedenko, B.J. Worton, C. Buchta, C. Buchta, C. Godrèche, C. Nadal, C. Sire, C. Sire, C. Tracy, D. Aldous, D. Carpentier, D. Khoshnevisan, D. Murphy, D.G. Kirkpatrick, D.S. Dean, D.S. Dean, D.S. Dean, E. Barbier, E. Ben Naim, E. Brunet, E. Gumbel, E. Gumbel, E.G. Coffman, F. Affentranger, F. Spitzer, F. Valentine, F.P. Preparata, G. Baxter, G. Gyorgi, G. Gyorgi, G. Letac, G. Letac, G. Schehr, G. Schehr, G. Toussaint, H. Agrawal, H. Berg, H. Brozius, H. Brozius, H. Carnal, H. Larralde, H. Larralde, H. Raynaud, H. Raynaud, H.E. Daniels, H.P. McKean, I. Bena, I. Bárány, I. Bárány, J. Cabo, J. Geffroy, J. Geffroy, J. Haushofer, J. Krug, J. Randon-Furling, J.F. Gall Le, J.P. Bouchaud, Julien Randon-Furling, K. Burdzy, K. Burdzy, K. Johansson, L. Acedo, L. Devroye, L. Edelstein-Keshet, L. Giuggioli, L. Santaló, L. Takács, M. Abramowitz, M. Bramson, M. Cranston, M. Crofton, M. Mayer, M. Reitzner, M. Reitzner, M. Reitzner, M. Shimura, M. Shimura, M.J. Kearney, N. Jewell, N.M. Sirakov, P. Calka, P. Chassaing, P. Groeneboom, P. LeDoussal, P. LeDoussal, P. Lévy, P. Lévy, P. Lévy, P. Vivo, P.L. Krapivsky, R. Davis, R. Graham, R. Schneider, R. Seidel, R. Wenger, R.A. Jarvis, R.L. Dobrushin, S. Ayari, S. Boyle, S. Coles, S. Finch, S. Raychaudhuri, S. Sabhapandit, S.N. Evans, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, S.N. Majumdar, Satya N. Majumdar, T. Hsing, T. Snyder, T.W. Burkhardt, V. Vu, W. Eddy, W. Eddy, W. Eddy, W. Feller, W. Weil, Y.V. Fyodorov   +139 more
core   +1 more source

Accelerated Discovery of Topological Conductors for Nanoscale Interconnects

Advanced Science, EarlyView.
Copper interconnects exhibit a sharp increase in resistivity at ultra‐scaled dimensions, threatening continued miniaturization of integrated circuits. The gapless surface states of topological semimetals provide conduction channels resistant to localization.
Alexander C. Tyner, William Rogers, Po‐Hsin Shih, Yi‐Hsin Tu, Gengchiau Liang, Hsin Lin, Ching‐Tzu Chen, James M. Rondinelli   +7 more
wiley   +1 more source

Biomimetic Structural Design for Reducing the Adhesion Between Wet Rice Leaves and Metal Surfaces

Agriculture
Adhesion behavior between wet rice leaves and metal surfaces exacerbates the difficulty in separating and removing grains in the cleaning device.
Pengfei Qian, Qi He, Zhong Tang, Tingwei Gu   +3 more
doaj   +1 more source

An Efficient Index Building Algorithm for Selection of Aggregator Nodes in Wireless Sensor Networks

International Journal of Distributed Sensor Networks, 2014
In wireless sensor networks (WSNs), aggregator nodes perform the data aggregation process. Thus, careful selection of the aggregator nodes is needed to reduce network traffic in data aggregation process and prolong overall lifetime of the network.
Sun-Young Ihm, Aziz Nasridinov, Young-Ho Park   +2 more
doaj   +1 more source

Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys

Advanced Science, EarlyView.
This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin, Cheng‐Wei Lee, Nate S.P. Bernstein, Thi Nguyen, Ande Bryan, Eli Cooper, John S. Mangum, Sage R. Bauers, Andriy Zakutayev, Keisuke Yazawa, Prashun Gorai, Rebecca W. Smaha   +11 more
wiley   +1 more source

Design for Copying Grouser and Bionic Convex Hull Patterns on Track Surfaces of Crawler Combine Harvesters

Agriculture
In the rainy season, which often has uncertain rainfall, crawler combine harvesters have difficulty traversing wet and soft rice fields. A large amount of clay is often accumulated on the track surfaces, resulting in frequent slipping and sinking, which ...
Lulu Yuan, Zhong Tang, Sifan Liu, Ting Wang, Zhao Ding   +4 more
doaj   +1 more source