检索结果-内蒙古大学图书馆

Search for heavy resonances decaying to WW, WZ, or WH boson pairs in a final state consisting of a lepton and a large-radius jet in proton-proton collisions at s=13 TeV

引用

Physical Review D 2022年第3期105卷 032008-032008页

作者： A. Tumasyan W. Adam J. W. Andrejkovic T. Bergauer S. Chatterjee M. Dragicevic A. Escalante Del Valle R. Frühwirth M. Jeitler N. Krammer L. Lechner D. Liko I. Mikulec P. Paulitsch F. M. Pitters J. Schieck R. Schöfbeck M. Spanring S. Templ W. Waltenberger C.-E. Wulz V. Chekhovsky A. Litomin V. Makarenko M. R. Darwish E. A. De Wolf X. Janssen T. Kello A. Lelek H. Rejeb Sfar P. Van Mechelen S. Van Putte N. Van Remortel F. Blekman E. S. Bols J. D’Hondt J. De Clercq M. Delcourt H. El Faham S. Lowette S. Moortgat A. Morton D. Müller A. R. Sahasransu S. Tavernier W. Van Doninck P. Van Mulders D. Beghin B. Bilin B. Clerbaux G. De Lentdecker L. Favart A. Grebenyuk A. K. Kalsi K. Lee M. Mahdavikhorrami I. Makarenko L. Moureaux L. Pétré A. Popov N. Postiau E. Starling L. Thomas M. Vanden Bemden C. Vander Velde P. Vanlaer D. Vannerom L. Wezenbeek T. Cornelis D. Dobur J. Knolle L. Lambrecht G. Mestdach M. Niedziela C. Roskas A. Samalan K. Skovpen M. Tytgat W. Verbeke B. Vermassen M. Vit A. Bethani G. Bruno F. Bury C. Caputo P. David C. Delaere I. S. Donertas A. Giammanco K. Jaffel Sa. Jain V. Lemaitre K. Mondal J. Prisciandaro A. Taliercio M. Teklishyn T. T. Tran P. Vischia S. Wertz G. A. Alves C. Hensel A. Moraes W. L. Aldá Júnior M. Alves Gallo Pereira M. Barroso Ferreira Filho H. Brandao Malbouisson W. Carvalho J. Chinellato E. M. Da Costa G. G. Da Silveira D. De Jesus Damiao S. Fonseca De Souza D. Matos Figueiredo C. Mora Herrera K. Mota Amarilo L. Mundim H. Nogima P. Rebello Teles A. Santoro S. M. Silva Do Amaral A. Sznajder M. Thiel F. Torres Da Silva De Araujo A. Vilela Pereira C. A. Bernardes L. Calligaris T. R. Fernandez Perez Tomei E. M. Gregores D. S. Lemos P. G. Mercadante S. F. Novaes Sandra S. Padula A. Aleksandrov G. Antchev R. Hadjiiska P. Iaydjiev M. Misheva M. Rodozov M. Shopova G. Sultanov A. Dimitrov T. Ivanov L. Litov B. Pavlov P. Petkov A. Petrov T. Cheng Q. Guo T. Javaid M. Mittal H. Wang L. Yuan M. Ahmad G. Bauer C. Dozen Z. Hu J. Martins Y. Wang K. Yi E. Chapon G. M. Chen H. S. Chen M. Chen F. Iemmi A. Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Vienna Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Korea University Seoul Korea Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista São Paulo Brazil Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Rutgers The State University of New Jersey Piscataway New Jersey USA Department of Physics Tsinghua University Beijing China Institute of High Energy Physics Beijing China Massachusetts Institute of Technology Cambridge Massachusetts USA State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China The University of Kansas Lawrence Kansas USA Sun Yat-Sen University Guangzhou China Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University Shanghai China Zhejiang University Hangzhou China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Center for High Energy Physics (CHEP-FU)

A search for new heavy resonances decaying to pairs of bosons (WW, WZ, or WH) is presented. The analysis uses data from proton-proton collisions collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb−1. One of the bosons is required to be a W boson decaying to an electron or muon and a neutrino, while the other boson is required to be reconstructed as a single jet with mass and substructure compatible with a quark pair from a W, Z, or Higgs boson decay. The search is performed in the resonance mass range between 1.0 and 4.5 TeV and includes a specific search for resonances produced via vector boson fusion. The signal is extracted using a two-dimensional maximum likelihood fit to the jet mass and the diboson invariant mass distributions. No significant excess is observed above the estimated background. Model-independent upper limits on the production cross sections of spin-0, spin-1, and spin-2 heavy resonances are derived as functions of the resonance mass and are interpreted in the context of bulk radion, heavy vector triplet, and bulk graviton models. The reported bounds are the most stringent to date.

关键词： Higgs bosons Hypothetical particles W & Z bosons Hadron colliders

来源：评论

学校读者我要写书评

暂无评论

α→β Transformation characteristics revealed by pulsed laser-induced non-equilibrium microstructures in duplex-phase Zr alloy

引用

science China(Technological sciences) 2017年第8期60卷 1255-1262页

作者： CHAI LinJiang WANG Shu Yan WU Hao GUO Ning PAN HuCheng CHEN Liang Yu MURTY K.L. SONG Bo College of Materials Science and Engineering Chongqing University of Technology Faculty of Materials and Energy Southwest University Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education) Northeastern University School of Mathematics and Science Jiangsu University of Science and Technology Department of Nuclear Engineering North Carolina State University

Microstructures of a duplex-phase Zr-2.5Nb alloy treated by pulsed laser were characterized by electron backscatter diffraction （EBSD） and electron channeling contrast （ECC） imaging techniques. Major attention has been paid to non-equilibrium hybrid microstructure consisting of both prior a and β phases, and a plates transformed from new β phases to probe α→β transformation characteristics in the alloy. The origin of the hybrid microstructure is attributed to the specific thermodynamic conditions induced by the pulsed laser treatment. ECC observation shows that newly formed [3 phases during laser heating prefer to nucleate and grow at the expense of edges of prior α grains rather than their interiors. EBSD analyses further reveal that orientations of the new β phases are not determined by the prior a grains according to the Burgers relationship but maintain those of the prior β phases in an epitaxial growth way.

关键词： Zr alloy microstructure phase transformation laser treatment electron backscatter diffraction

来源：评论

学校读者我要写书评

暂无评论

Neural signatures of motor skill in the resting brain

arXiv

引用

arXiv 2019年

作者： Özdenizci, Ozan Meyer, Timm Wichmann, Felix Peters, Jan Schölkopf, Bernhard Çetin, Müjdat Grosse-Wentrup, Moritz Department of Electrical and Computer Engineering Northeastern University BostonMA United States Signal Processing and Information Systems Laboratory Faculty of Engineering and Natural Sciences Sabancı University Istanbul Turkey Max Planck Institute for Intelligent Systems Tübingen Germany Faculty of Science University of Tübingen Bernstein Center for Computational Neuroscience Tübingen Tübingen Germany FG Intelligente Autonome Systeme Technische Universität Darmstadt Darmstadt Germany Department of Electrical and Computer Engineering University of Rochester RochesterNY United States Research Group Neuroinformatics Faculty of Computer Science University of Vienna Vienna Austria

Stroke-induced disturbances of large-scale cortical networks are known to be associated with the extent of motor deficits. We argue that identifying brain networks representative of motor behavior in the resting brain would provide significant insights for current neurorehabilitation approaches. Particularly, we aim to investigate the global configuration of brain rhythms and their relation to motor skill, instead of learning performance as broadly studied. We empirically approach this problem by conducting a three-dimensional physical space visuomotor learning experiment during electroencephalographic (EEG) data recordings with thirty-seven healthy participants. We demonstrate that across-subjects variations in average movement smoothness as the quantified measure of subjects' motor skills can be predicted from the global configuration of resting-state EEG alpha-rhythms (8-14 Hz) recorded prior to the experiment. Importantly, this neural signature of motor skill was found to be orthogonal to (independent of) task- as well as to learning-related changes in alpha-rhythms, which we interpret as an organizing principle of the brain. We argue that disturbances of such configurations in the brain may contribute to motor deficits in stroke, and that reconfiguring stroke patients' brain rhythms by neurofeedback may enhance post-stroke neurorehabilitation. Copyright © 2019, The Authors. All rights reserved.

关键词： Electroencephalography

来源：评论

学校读者我要写书评

暂无评论

Erratum to: Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at s = 13 TeV

引用

Journal of High Energy Physics 2022年第3期2022卷 1-21页

作者： Sirunyan, A. M. Tumasyan, A. Adam, W. Ambrogi, F. Bergauer, T. Brandstetter, J. Dragicevic, M. Erö, J. Escalante Del Valle, A. Flechl, M. Frühwirth, R. Jeitler, M. Krammer, N. Krätschmer, I. Liko, D. Madlener, T. Mikulec, I. Rad, N. Schieck, J. Schöfbeck, R. Spanring, M. Spitzbart, D. Waltenberger, W. Wulz, C.-E. Zarucki, M. Drugakov, V. Mossolov, V. Suarez Gonzalez, J. Darwish, M. R. De Wolf, E. A. Di Croce, D. Janssen, X. Lauwers, J. Lelek, A. Pieters, M. Rejeb Sfar, H. Van Haevermaet, H. Van Mechelen, P. Van Putte, S. Van Remortel, N. Blekman, F. Bols, E. S. Chhibra, S. S. D’Hondt, J. De Clercq, J. Lontkovskyi, D. Lowette, S. Marchesini, I. Moortgat, S. Moreels, L. Python, Q. Skovpen, K. Tavernier, S. Van Doninck, W. Van Mulders, P. Van Parijs, I. Beghin, D. Bilin, B. Brun, H. Clerbaux, B. De Lentdecker, G. Delannoy, H. Dorney, B. Favart, L. Grebenyuk, A. Kalsi, A. K. Luetic, J. Popov, A. Postiau, N. Starling, E. Thomas, L. Vander Velde, C. Vanlaer, P. Vannerom, D. Cornelis, T. Dobur, D. Khvastunov, I. Niedziela, M. Roskas, C. Trocino, D. Tytgat, M. Verbeke, W. Vermassen, B. Vit, M. Zaganidis, N. Bondu, O. Bruno, G. Caputo, C. David, P. Delaere, C. Delcourt, M. Giammanco, A. Lemaitre, V. Magitteri, A. Prisciandaro, J. Saggio, A. Vidal Marono, M. Vischia, P. Zobec, J. Alves, F. L. Alves, G. A. Correia Silva, G. Hensel, C. Moraes, A. Rebello Teles, P. Belchior Batista Das Chagas, E. Carvalho, W. Chinellato, J. Coelho, E. Da Costa, E. M. Da Silveira, G. G. De Jesus Damiao, D. De Oliveira Martins, C. Fonseca De Souza, S. Huertas Guativa, L. M. Malbouisson, H. Martins, J. Matos Figueiredo, D. Medina Jaime, M. Melo De Almeida, M. Mora Herrera, C. Mundim, L. Nogima, H. Prado Da Silva, W. L. Sanchez Rosas, L. J. Santoro, A. Sznajder, A. Thiel, M. Tonelli Manganote, E. J. Torres Da Silva De Araujo, F. Vilela Pereira, A. Ahuja, S. Bernardes, C. A. Calligaris, L. Fernandez Perez Tomei, T. R. Gregores, E. M. Lemos, D. S. Mercadante, P. G. Novaes, S. F. Padula, Sandra S. Aleksandrov, A. Antchev, G. Hadjiiska, R. Iaydjiev, Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Wien Austria Vienna University of Technology Vienna Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Ghent University Ghent Belgium IRFU CEA Université Paris-Saclay Gif-sur-Yvette France Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual de Campinas Campinas Brazil Federal University of Rio Grande do Sul Porto Alegre Brazil UFMS Nova Andradina Brazil Universidade Federal de Pelotas Pelotas Brazil Universidade Estadual Paulista São Paulo Brazil Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Department of Physics Tsinghua University Beijing China Institute of High Energy Physics Beijing China University of Chinese Academy of Sciences Beijing China State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia Institute for Theoretical and Experimental Physics named by A.I. Alikhanov of NRC ‘Kurchatov Institute’ Moscow Russia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Joint Institute for Nuclear Research Dubna Russia Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Cairo University Cairo Egypt Academy of Scientific Research and Technolog

来源：评论

学校读者我要写书评

暂无评论

Harmonic Detection Method Based on Compressed Sensing Theory in the Application of APF 29

Harmonic Detection Method Based on Compressed Sensing Theory...

引用

第29届中国控制与决策会议

作者： Xifeng Guo Rui Zhang Meiju Liu Sen Tan Jinxiang Pian Information & Control Engineering Faculty Shenyang Jianzhu University The College of Information Science and Engineering Northeastern University

ISBN: (纸本)9781509046584

According to the demand of harmonic detection of APF,a new method using compressed sensing theory is proposed in this ***,the signal is ensured to be expressed as sparse form using compressed sensing technique in actual grid,and harmonic signal detected is reconstructed by orthogonal matching pursuit after compressed *** simulation and experiment results show detection precision and response of the system can be enhanced without the need to increase sampling points,which make it possible to improve the performance of APF with bright application foreground.

关键词： Compressed sensing Harmonic detection Power quality Active power filter

来源：评论

学校读者我要写书评

暂无评论

Electron-Ion Collider in China

arXiv

引用

arXiv 2021年

作者： Anderle, Daniele P. Bertone, Valerio Cao, Xu Chang, Lei Chang, Ningbo Chen, Gu Chen, Xurong Chen, Zhuojun Cui, Zhufang Dai, Lingyun Deng, Weitian Ding, Minghui Feng, Xu Gong, Chang Gui, Longcheng Guo, Feng-Kun Han, Chengdong He, Jun Hou, Tie-Jiun Huang, Hongxia Huang, Yin Kumerički, Krešimir Kaptari, L.P. Li, Demin Li, Hengne Li, Minxiang Li, Xueqian Liang, Yutie Liang, Zuotang Liu, Chen Liu, Chuan Liu, Guoming Liu, Jie Liu, Liuming Liu, Xiang Liu, Tianbo Luo, Xiaofeng Lyu, Zhun Ma, Boqiang Ma, Fu Ma, Jianping Ma, Yugang Mao, Lijun Mezrag, Cédric Moutarde, Hervé Ping, Jialun Qin, Sixue Ren, Hang Roberts, Craig D. Rojo, Juan Shen, Guodong Shi, Chao Song, Qintao Sun, Hao Sznajder, Pawel Wang, Enke Wang, Fan Wang, Qian Wang, Rong Wang, Ruiru Wang, Taofeng Wang, Wei Wang, Xiaoyu Wang, Xiaoyun Wu, Jiajun Wu, Xinggang Xia, Lei Xiao, Bowen Xiao, Guoqing Xie, Ju-Jun Xie, Yaping H., Xing H., Xu N., Xu S., Xu M., Yan W., Yan W., Yan X., Yan J., Yang Y.-B., Yang Z., Yang D., Yao P., Yin C.-P., Yuan W., Zhan J., Zhang J., Zhang P., Zhang C.-H., Chang Z., Zhang H., Zhao K.-T., Chao Q., Zhao Y., Zhao Z., Zhao L., Zheng J., Zhou X., Zhou X., Zhou B., Zou L., Zou Guangdong Provincial Key Laboratory of Nuclear Science Institute of Quantum Matter South China Normal University Guangzhou510006 China IRFU CEA Université Paris-Saclay Gif-sur-YvetteF-91191 France Institute of Modern Physics Chinese Academy of Sciences Lanzhou730000 China University of Chinese Academy of Sciences Beijing100049 China Nankai University Tianjin300071 China Xinyang Normal University Xinyang464000 China School of Physics and Materials Science Guangzhou University Guangzhou510006 China Hunan University Changsha410082 China Nanjing University Nanjing210093 China Huazhong University of Science and Technology Wuhan430074 China Fondazione Bruno Kessler Villa Tambosi Strada delle Tabarelle 286 VillazzanoTNI-38123 Italy School of Physics Peking University Beijing100871 China Hunan Normal University Changsha410081 China Institute of Theoretical Physics Chinese Academy of Sciences Beijing100190 China Nanjing normal university Nanjing210023 China Department of Physics College of Sciences Northeastern University Shenyang110819 China Southwest Jiaotong University Chengdu610000 China Department of Physics Faculty of Science University of Zagreb Bijenička c. 32 Zagreb10000 Croatia Bogoliubov Laboratory of Theoretical Physics Joint Institute for Nuclear Research Dubna141980 Russia School of Physics and Microelectronics Zhengzhou University Zhengzhou450001 China Lanzhou university Lanzhou730000 China Shandong University Qingdao266237 China Institute of Particle Physics Central China Normal University Wuhan430079 China School of Physics Southeast University Nanjing211189 China Institute of Modern Physics Fudan University Shanghai200433 China Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai201800 China Department of Physics Chongqing University Chongqing401331 China Department of Physics and Astronomy Vrije Universiteit Amsterdam De Boelelaan 1081 Amsterdam1081HV Netherlands Nik

Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as nuclei. As a future high energy nuclear physics project, an Electron-ion collider in China (EicC) has been proposed. It will be constructed based on an upgraded heavy-ion accelerator, High Intensity heavy-ion Accelerator Facility (HIAF) which is currently under construction, together with a new electron ring. The proposed collider will provide highly polarized electrons (with a polarization of ∼80%) and protons (with a polarization of ∼70%) with variable center of mass energies from 15 to 20 GeV and the luminosity of (2-3) × 1033 cm−2 s−1. Polarized deuterons and Helium-3, as well as unpolarized ion beams from Carbon to Uranium, will be also available at the EicC. The main foci of the EicC will be precision measurements of the structure of the nucleon in the sea quark region, including 3D tomography of nucleon;the partonic structure of nuclei and the parton interaction with the nuclear environment;the exotic states, especially those with heavy flavor quark contents. In addition, issues fundamental to understanding the origin of mass could be addressed by measurements of heavy quarkonia near-threshold production at the EicC. In order to achieve the above-mentioned physics goals, a hermetical detector system will be constructed with cutting-edge technologies. This document is the result of collective contributions and valuable inputs from experts across the globe. The EicC physics program complements the ongoing scientific programs at the Jefferson Laboratory and the future EIC project in the United States. The success of this project will also advance both nuclear and particle physics as well as accelerator and detector technology in China. © 2021, CC BY.

关键词： Polarization

来源：评论

学校读者我要写书评

暂无评论

An improved FastSLAM2.0 algorithm using Kullback-Leibler Divergence 4

An improved FastSLAM2.0 algorithm using Kullback-Leibler Div...

引用

4th International Conference on Systems and Informatics, ICSAI 2017

作者： Shiguang, Wen Chengdong, Wu Faculty of Robotic Science and Engineering Northeastern University Shenyang China

ISBN: (纸本)9781538611074

The ability to simultaneously localize a robot and map its surroundings is considered by many to be a key prerequisite of truly autonomous robots. However, there is a dilemma between accuracy and computational complexity in existing SLAM algorithms. EKFSLAM algorithm, developed by Smith R in 1988, was first applied in SLAM. Nevertheless, high computational complexity became one of the main barriers for wide spread usage. To reduce the computational consumption, a new method based on conditional probability decomposition was used in FastSLAM, which makes the running time a logarithmic function of landmarks. Then the following FASTSLAM2.0 algorithm fused the proposed distribution with observation information, and it raised algorithm accuracy effectively. Aiming at the degeneracy problem in FastSLAM2.0, an improved resampling method using Kullback-Leibler Divergence is put forward, which contains particle degeneration largely. Simulation results show that this approach accelerates the convergence of particles set and restrains particle depletion as well. © 2017 IEEE.

关键词： Computational complexity

来源：评论

学校读者我要写书评

暂无评论

Coulomb correlation in noncollinear antiferromagnetic α-Mn

arXiv

引用

arXiv 2019年

作者： Pulkkinen, Aki Barbiellini, Bernardo Nokelainen, Johannes Sokolovskiy, Vladimir Baigutlin, Danil Miroshkina, Olga Zagrebin, Mikhail Buchelnikov, Vasiliy Lane, Christopher Markiewicz, Robert S. Bansil, Arun Sun, Jianwei Pussi, Katariina Lähderanta, Erkki School of Engineering Science LUT University Lappeenranta53850 Finland Department of Physics Northeastern University BostonMA02115 United States Faculty of Physics Chelyabinsk State University Chelyabinsk454001 Russia National University of Science and Technology MISiS Moscow119049 Russia National Research South Ural State University Chelyabinsk454080 Russia Department of Physics and Engineering Physics Tulane University New OrleansLA70118 United States

We discuss the interplay between magnetic and structural degrees of freedom in elemental Mn. The equilibrium volume is shown to be sensitive to magnetic interactions between the Mn atoms. While the standard generalized-gradient-approximation underestimates the equilibrium volume, a more accurate treatment of the effects of electronic localization and magnetism is found to solve this longstanding problem. Our calculations also reveal the presence of a magnetic phase in strained α-Mn that has been reported previously in experiments. This new phase of strained α-Mn exhibits a noncollinear spin structure with large magnetic moments. Copyright © 2019, The Authors. All rights reserved.

关键词： Magnetic moments

来源：评论

学校读者我要写书评

暂无评论

Biomimetic Nanoengineered Scaffold for Enhanced Full-Thickness Cutaneous Wound Healing

SSRN

引用

SSRN 2020年

作者： Zandi, Nooshin Dolatyar, Banafsheh Lotfi, Roya Shallageh, Yusef Shokrgozar, Mohammad Ali Tamjid, Elnaz Annabi, Nasim Simchi, Abdolreza Arash Institute for Nanoscience and Nanotechnology Sharif University of Technology P.O. Box 11365-11155 Tehran Iran Department of Chemical Engineering Northeastern University BostonMA United States Department of Cell and Developmental Biology School of Biological Sciences College of Science University of Tehran Tehran Iran School of Medicine Shahid Beheshti University of Medical Sciences Tehran Iran Nanoclub Elites Association Tehran Iran National Cell Bank Department Pasteur Institute of Iran Tehran13164 Iran Department of Nanobiotechnology Faculty of Biological Sciences Tarbiat Modares University P.O. Box 14115-175 Tehran Iran Department of Chemical and Biomolecular Engineering University of California Los Angeles Los AngelesCA90095 United States Harvard-MIT Division of Health Sciences and Technology Massachusetts Institute of Technology CambridgeMA02139 United States Department of Materials Science and Engineering Sharif University of Technology P.O. Box 11365-11155 Tehran Iran

Wound healing is a complex process which is based on the coordinated signaling molecules and dynamic interactions between the engineered scaffold and newly formed tissue. So far, most of the engineered scaffolds used for the healing of full-thickness skin wound do not mimic the natural extracellular matrix (ECM) complexity and therefore are not able to provide an appropriate niche for endogenous tissue regeneration. To address this gap and to accelerate the wound healing process, we present biomimetic bilayer scaffolds compositing of gelatin nanofibers (GFS) and photocrosslinkable composite hydrogels loaded with epidermal growth factors (EGF). The nanofibers operate as the dermis layer and EFG-loaded composite hydrogels acted as the epidermis matrix for the full-thickness wound healing application. The hydrogels are composed of gelatin metacryloyl (GelMA) modified with silicate nanoplatelets (Laponite). To overcome the challenges of transdermal delivery of EGF including short half-life and lack of efficient formulation precise, controlled delivery was attained by immobilization of EGF on Laponite. It is shown that the addition of 1wt% silicate nanoplatelet increases the compressive modulus of the hydrogels by 170%. In vitro wound closure analysis also demonstrated improved adhesion of the scaffolds to the native tissue by 3.5 folds. Moreover, the tunable hemostatic ability of the scaffolds due to the negatively charged nanoplatelets is shown. In an established excisional full-thickness wound model, an enhanced wound closure (up to 93.1 ± 1.54%) after 14 days relative to controls (GFS and saline-treated groups) is demonstrated. The engineered adhesive and hemostatic scaffolds with sustained release of the growth factors have the potential to stimulate complete skin regeneration for full-thickness wound healing. © 2020, The Authors. All rights reserved.

关键词： Tissue

来源：评论

学校读者我要写书评

暂无评论

Structural and electronic properties of the spin-filter material CrVTiAl with disorder

arXiv

引用

arXiv 2019年

作者： Stephen, Gregory M. Buda, Gianina Jamer, Michelle E. Lane, Christopher Kaprzyk, Stanislaw Barbiellini, Bernardo Graf, David Lewis, Laura H. Bansil, Arun Heiman, Don Department of Physics Northeastern University BostonMA02115 United States NIST Center for Neutron Research National Institute of Standards and Technology GaithersburgMD20899 United States Department of Physics U.S. Naval Academy AnnapolisMD21402 United States Faculty of Physics and Applied Computer Science AGH University of Science and Technology aleja Mickiewicza 30 Krakow30-059 Poland Department of Physics School of Engineering Science Lappeenranta University of Technology LappeenrantaFI-53851 Finland National High Magnetic Field Laboratory Florida State University TallahasseeFL32310 United States Department of Chemical Engineering Northeastern University BostonMA02115 United States Department of Mechanical and Industrial Engineering Northeastern University BostonMA02115 United States

The effects of chemical disorder on the transport properties of the spin-filter material CrVTiAl are investigated experimentally and theoretically. Synchrotron X-ray diffraction experiments on bulk CrVTiAl and the associated Rietveld analysis indicate that the crystal structure consists primarily of a mixture of a partially ordered B2 phase, a fully disordered A2 phase and a small component of an ordered L21 or Y phase. High temperature resistivity measurements confirm the existence of a band gap. First-principles, all-electron, self-consistent electronic structure computations show that the chemically disordered A2 and B2 phases are metallic, while the spin-filter properties of the ideal Y-type phase are preserved in the presence of L21 disorder. The Hall coefficient is found to decrease with increasing temperature, similar to the measured increase in the conductivity, indicating the presence of thermally activated semiconductor-like carriers. Copyright © 2019, The Authors. All rights reserved.

关键词： Chromium alloys

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：