Results 101 to 110 of about 78,101 (302)

Unified description of structure and reactions: implementing the Nuclear Field Theory program

, 2015
The modern theory of the atomic nucleus results from the merging of the liquid drop (Niels Bohr and Fritz Kalckar) and of the shell model (Marie Goeppert Meyer and Axel Jensen), which contributed the concepts of collective excitations and of independent ...
Barranco, Francisco, Bortignon, Pier Francesco, Broglia, Ricardo A., Idini, Andrea, Potel, Gregory, Vigezzi, Enrico   +5 more
core   +1 more source

Selenium‐Incorporated Polymerized Nonfullerene Acceptors/SWCNT Composites with Polymer‐Assisted n‐Doping for High‐Performance Organic Thermoelectrics

Advanced Functional Materials, EarlyView.
Selenium‐incorporated polymerized nonfullerene acceptor PCB2Se forms a strong supramolecular complex with SWCNTs, enabling a record‐high zT of 0.29. Sequential N‐DMBI doping, mediated through a polymer‐assisted electron‐transfer pathway, successfully converts the PCB2Se/SWCNT composite into an efficient n‐type material with an impressive power factor ...
Chi‐Chun Tseng, Che‐An Chou, Chi Chang, Li‐Lun Yeh, Chien‐Yi Ku, Jhih‐Min Lin, Shih‐Huang Tung, Cheng‐Liang Liu, Yen‐Ju Cheng   +8 more
wiley   +1 more source

Unlocking Multi‐Valley Energy Pockets and Interface‐Induced Phonon Filtering in InSb Thermoelectrics by Reaction‐Driven Interface Engineering

Advanced Functional Materials, EarlyView.
InSb, a narrow‐bandgap semiconductor with high carrier mobility, is promising for thermoelectric energy conversion but suffers from high lattice thermal conductivity and strong bipolar conduction. Here, in situ interface engineering using Co2O3 nanoprecursors forms hierarchical CoSbx/In2O3/CoSb3 heterostructures that enhance phonon scattering and ...
Jiwu Xin, Xiao Yang, Xiao‐Lei Shi, Chengyun Xu, Xi Ling, Pengyu Zhang, Jinfeng Dong, Yong Du, Haisheng Chen, Ting Zhang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

Chirality and Organization of Adsorbates Modify Surface Phonon Dynamics

Advanced Functional Materials, EarlyView.
Chirality and molecular organization are shown to influence surface phonon dynamics in gold films. Time‐resolved Joule heating measurements reveal that ordered homochiral monolayers increase the Debye temperature and disordered layers reduce it, while ordered racemic controls have no effect.
Meital Ozeri, Eugenia Pyurbeeva, Shira Yochelis, Jonas Fransson, Ronnie Kosloff, Oded Millo, Yossi Paltiel   +6 more
wiley   +1 more source

Theory of Spin-Conserving Excitation of the $N-V^-$ Center in Diamond

, 2009
The negatively charged nitrogen-vacancy defect ($N-V^-$ center) in diamond is an important atomic-scale structure that can be used as a qubit in quantum computing and as a marker in biomedical applications.
Adam Gali, Efthimios Kaxiras, Erik Janzén, Georg Kresse, L. Hedin, Péter Deák   +5 more
core   +1 more source

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

Advanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu, Qihang Lv, Lubin Liu, Zhezhe Zhou, Chentao Yan, Ao Qin, Jianting Ma, Shuhui Liang, Yue Xu, Min Hong, Bin Li, Pingan Song   +11 more
wiley   +1 more source

Structure of even-even nuclei using a mapped collective Hamiltonian and the D1S Gogny interaction

, 2009
A systematic study of low energy nuclear structure at normal deformation is carried out using the Hartree-Fock-Bogoliubov theory extended by the Generator Coordinate Method and mapped onto a 5-dimensional collective quadrupole Hamiltonian.
Bertsch, G. F., Delaroche, J. P., Girod, M., Goutte, H., Hilaire, S., Libert, J., Peru, S., Pillet, N.   +7 more
core   +3 more sources

Dual‐Mode Magnetic Elastomer for On‐Demand Motion and Degradation

Advanced Functional Materials, EarlyView.
A dual‐mode magnetic elastomer is introduced, enabling DC field‐driven programmable actuation and AC field‐driven magnetothermal degradation. GHz‐range magnetic fields generate ultrafast heating of magnetic nanoparticles that activates cleavage of the silicone elastomer matrix.
Jieun Han, Hyun An, Min‐Ha Oh, Yu‐Lim Lee, Woojin Jeon, Kyung‐Sub Kim, Jae‐Hwan Lee, Seungmin Kang, Yoon‐Nam Kim, Ji‐Won Kang, Daewhan Kim, Min Sang Kwon, Sang‐Koog Kim, Seung‐Kyun Kang   +13 more
wiley   +1 more source

Self-Excited Vibration Generated in a Vibroimpact System

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 2011
There are some mechanical systems that involve impacts, e.g. vibratory feeders, impact dampers, vibrating screens and so on. Sometimes unwanted low frequency vibration occurs in such vibroimpact systems. This paper regards such vibration as self-excited vibration generated in vibroimpact systems.
Hiroki MORI, Takuo NAGAMINE, Tsubasa KOYAMA, Yuichi SATO   +3 more
openaire   +2 more sources

Calculation of excited polaron states in the Holstein model

, 2003
An exact diagonalization technique is used to investigate the low-lying excited polaron states in the Holstein model for the infinite one-dimensional lattice.
A.H. Castro Neto, A.H. Romero, A.S. Alexandrov, A.S. Alexandrov, A.S. Alexandrov, A.S. Mishchenko, A.S. Mishchenko, C. Zhang, D. Feinberg, D.W. Brown, E. Dagotto, E.V.L. de Mello, E.V.L. de Mello, G. Kalosakas, G. Wellein, G. Wellein, G. Whitfield, H. Fehske, H. Haken, J. Bonča, J. Ranninger, J.M. Robin, J.M. Robin, L. Proville, L.-C. Ku, L.D. Landau, M. Capone, M. Hoffmann, N.K. Voulgarakis, N.V. Prokof’ev, O. S. Barišić, O.S. Barišić, P.B. Shaw, P.E. Kornilovitch, P.F. Maldague, S. Ciuchi, S. Ciuchi, S. El Shawish, S. Engelsberg, S. Fratini, S.I. Pekar, S.I. Pekar, T. Holstein, T. Holstein, T.D. Holstein, V.I. Mel’nikov, V.V. Kabanov, Y. Zhao   +47 more
core   +1 more source