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Solar Steam Generation: High-Performance Large-Scale Solar Steam Generation with Nanolayers of Reusable Biomimetic Nanoparticles (Adv. Sustainable Syst. 1-2/2017)

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Advanced Sustainable Systems 2017年第1-2期1卷

作者： Changxu Liu Jianfeng Huang Chia-En Hsiung Yi Tian Jianjian Wang Yu Han Andrea Fratalocchi PRIMALIGHT Faculty of Electrical Engineering Applied Mathematics and Computational Science King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia Division of Physical Sciences and Engineering King Abdullah University of Science and Technology Thuwal 23955-6900 Saudi Arabia

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Flexible polymer/multi-walled carbon nanotube composite sensor array equipped with microheater for gas sensing

Flexible polymer/multi-walled carbon nanotube composite sens...

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International Conference on Manipulation, Automation and Robotics at Small Scales (MARSS)

作者： Chin-Cheng Wu Jin-Chern Chiou Yu-Ping Wang Li-Chun Wang Department of Electrical and Computer Engineering Institute of Electrical and Control Engineering National Chiao Tung University Hsinchu Taiwan Chemical System Research Division National Chung-Shan Institute of Science and Technology Taoyuan Taiwan

ISBN: (纸本)9781509015115

A polymer/multi-walled carbon nanotube (MWCNT) composite sensor array based on a flexible polyimide substrate equipped with a thermostatic microheater to provide different working temperatures was developed for gas sensing. The thermostatic microheater provided nine working temperatures ranging from 20°C to 60°C. Each microheater element included a 3 × 3 polymer/MWCNT composite sensor array, which is composed of MWCNTs and polymer composite, as a sensing material. The device was developed to investigate the effect of device temperature on the response of polymer/MWCNT composite gas sensor arrays. The response to ethanol at different temperatures showed resistance variation but similar performance for the proposed gas sensor array.

关键词： Polymers Temperature sensors Sensor arrays Gas detectors Films Carbon nanotubes

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Current-driven dynamics and inhibition of the skyrmion Hall effect of ferrimagnetic skyrmions in GdFeCo films

arXiv

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arXiv 2017年

作者： Woo, Seonghoon Song, Kyung Mee Zhang, Xichao Zhou, Yan Ezawa, Motohiko Liu, Xiaoxi Finizio, S. Raabe, J. Lee, Nyun Jong Kim, Sang-Il Park, Seung-Young Kim, Younghak Kim, Jae-Young Lee, Dongjoon Lee, OukJae Choi, Jun Woo Min, Byoung-Chul Koo, Hyun Cheol Chang, Joonyeon Center for Spintronics Korea Institute of Science and Technology Seoul02792 Korea Republic of Department of Physics Sookmyung Women’s University Seoul04130 Korea Republic of School of Science and Engineering Chinese University of Hong Kong Shenzhen518172 China Department of Applied Physics University of Tokyo Hongo 7-3-1 Tokyo113-8656 Japan Department of Electrical and Computer Engineering Shinshu University Wakasato 4-17-1 Nagano380-8553 Japan Swiss Light Source Paul Scherrer Institut Villigen5232 Switzerland Spin Engineering Physics Team Division of Scientific Instrumentation Korea Basic Science Institute Daejeon305-806 Korea Republic of Pohang Accelerator Laboratory Pohang University of Science and Technology Pohang37673 Korea Republic of KU-KIST Graduate School of Converging Science and Technology Korea University Seoul02792 Korea Republic of Department of Nanomaterials Science and Engineering Korea University of Science and Technology Daejeon34113 Korea Republic of

Magnetic skyrmions are swirling magnetic textures with novel characteristics suitable for future spintronic and topological applications. Recent studies confirmed the room-temperature stabilization of skyrmions in ultrathin ferromagnets. However, such ferromagnetic skyrmions show undesirable topological effect, the skyrmion Hall effect, which leads to their current-driven motion towards device edges, where skyrmions could easily be annihilated by topographic defects. Recent theoretical studies have predicted enhanced current-driven behaviour for antiferromagnetically exchange-coupled skyrmions. Here we present the stabilization of these skyrmions and their current-driven dynamics in ferrimagnetic GdFeCo films. By utilizing element-specific X-ray imaging, we find that the skyrmions in the Gd and FeCo sublayers are antiferromagnetically exchange-coupled. We further confirm that ferrimagnetic skyrmions can move at a velocity of ~50 m s-1 with reduced skyrmion Hall angle, θSkHE ~20°. Our findings open the door to ferrimagnetic and antiferromagnetic skyrmionics while providing key experimental evidences of recent theoretical studies. Copyright © 2017, The Authors. All rights reserved.

关键词： Iron alloys

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3D Printing: Decal Electronics: Printable Packaged with 3D Printing High-Performance Flexible CMOS Electronic Systems (Adv. Mater. Technol. 1/2017)

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Advanced Materials Technologies 2017年第1期2卷

作者： Galo A. Torres Sevilla Marlon D. Cordero Joanna M. Nassar Amir N. Hanna Arwa T. Kutbee Arpys Arevalo Muhammad M. Hussain Integrated Nanotechnology Lab and Integrated Disruptive Electronic Applications (IDEA) Lab Computer Electrical Mathematical Science and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia Electromechanical Microsystems & Polymer Integration Research Lab (EMPIRe) Computer Electrical Mathematical Science and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia

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Maging linear and circular polarization features in leaves with complete mueller matrix polarimetry

arXiv

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arXiv 2018年

作者： Patty, C.H. Lucas Luo, David A. Snik, Frans Ariese, Freek Buma, Wybren Jan Ten Kate, Inge Loes Van Spanning, Rob J.M. Sparks, William B. Germer, Thomas A. Garab, Gyozo Kudenov, Michael W. Molecular Cell Physiology VU Amsterdam De Boelelaan 1108 Amsterdam1081 HZ Netherlands Optical Sensing Lab Department of Electrical and Computer Engineering North Carolina State University RaleighNC27695 United States Leiden Observatory Leiden University P.O. Box 9513 Leiden2300 RA Netherlands LaserLaB VU Amsterdam De Boelelaan 1083 Amsterdam1081 HV Netherlands HIMS Photonics group University of Amsterdam Science Park 904 Amsterdam1098 XH Netherlands Department of Earth Sciences Utrecht University Budapestlaan 4 Utrecht3584 CD Netherlands Systems Bioinformatics VU Amsterdam De Boelelaan 1108 Amsterdam1081 HZ Netherlands Space Telescope Science Institute 3700 San Martin Drive BaltimoreMD21218 United States Senior Science Division National Institute of Standards and Technology 100 Bureau Drive GaithersburgMD20899 United States Institute of Plant Biology Biological Research Centre Hungarian Academy of Sciences P.O. Box 521 SzegedH-6701 Hungary Department of Physics Faculty of Science University of Ostrava Chittussiho 10 Slezská Ostrava Czech Republic

Spectropolarimetry of intact plant leaves allows to probe the molecular architecture of vegetation photosynthesis in a non-invasive and non-destructive way and, as such, can offer a wealth of physiological information. In addition to the molecular signals due to the photosynthetic machinery, the cell structure and its arrangement within a leaf can create and modify polarization signals. Using Mueller matrix polarimetry with rotating retarder modulation, we have visualized spatial variations in polarization in transmission around the chlorophyll a absorbance band from 650 nm to 710 nm. We show linear and circular polarization measurements of maple leaves and cultivated maize leaves and discuss the corresponding Mueller matrices and the Mueller matrix decompositions, which show distinct features in diattenuation, polarizance, retardance and depolarization. Importantly, while normal leaf tissue shows a typical split signal with both a negative and a positive peak in the induced fractional circular polarization and circular dichroism, the signals close to the veins only display a negative band. The results are similar to the negative band as reported earlier for single macrodomains. We discuss the possible role of the chloroplast orientation around the veins as a cause of this phenomenon. Systematic artefacts are ruled out as three independent measurements by different instruments gave similar results. These results provide better insight into circular polarization measurements on whole leaves and options for vegetation remote sensing using circular polarization. Copyright © 2018, The Authors. All rights reserved.

关键词： Dichroism

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Carbon nanostructures synthesized via self-assembly (LLIP) and its application in FET 11

Carbon nanostructures synthesized via self-assembly (LLIP) a...

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11th IEEE Annual International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2016

作者： Karthik, Ps Shimo, Yuma Lin, Zaw Venkata Krishna Rao, R. Gong, Xiao Yoshida, Mitsunobu Hada, Masaki Nishikawa, Takeshi Hayashi, Yasuhiko Singh, S.P. Okayama University Graduate School of Natural Science and Technology Department of Electrical and Electronic Engineering Nanodevice and Materials Laboratory 3-1-1 tsushima-naka Kita-ku700-8530 Japan Inorganic and Physical Chemistry Division CSIR-Indian Institute of Chemical Technology Tarnaka Uppal Road HyderabadTelangana500007 India

ISBN: (纸本)9781509019472

Here in, we report carbon nanostructures (nanorods) synthesized via liquid-liquid interface precipitation method (LLIP) with its application in field effect transistor as gate terminal. The carbon nanorods were synthesized by supersaturating and shape shifting Bucky ball fullerene into nanorods. The nanoparticles synthesis process is fast, efficient and the reaction is carried out in 24hrs. The obtained nanorods were found to have semiconducting property which was confirmed by analyzing TEM, SEM and RAMAN, FET analysis by IV measurements. Hence the nanorods where fabricated as gate terminal in field effect transistor. © 2016 IEEE.

关键词： Synthesis (chemical)

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REDUCED COMPLEXITY FFT-BASED DOA AND DOD ESTIMATION FOR MOVING TARGET IN BISTATIC MIMO RADAR

REDUCED COMPLEXITY FFT-BASED DOA AND DOD ESTIMATION FOR MOVI...

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IEEE International Conference on Acoustics, Speech and Signal Processing

作者： Hussain Ali Sajid Ahmed Tareq Y. Al-Naffouri Mohamed-Slim Alouini King Fahd University of Petroleum and Minerals (KFUPM) Electrical Engineering Department Dhahran Saudi Arabia King Abdullah University of Science and Technology (KAUST) Division of Physical Sciences and Engineering Thuwal Saudi Arabia

ISBN: (纸本)9781479999897

In this paper, we consider a bistatic multiple-input multiple-output (MIMO) radar. We propose a reduced complexity algorithm to estimate the direction-of-arrival (DOA) and direction-of-departure (DOD) for moving target. We show that the calculation of parameter estimation can be expressed in terms of one-dimensional fast-Fourier-transforms which drastically reduces the complexity of the optimization algorithm. The performance of the proposed algorithm is compared with the two-dimension multiple signal classification (2D-MUSIC) and reduced-dimension MUSIC (RD-MUSIC) algorithms. It is shown by simulations, our proposed algorithm has better estimation performance and lower computational complexity compared to the 2D-MUSIC and RD-MUSIC algorithms. Moreover, simulation results also show that the proposed algorithm achieves the Cramér-Rao lower bound.

关键词： Bistatic MIMO radar direction of arrival direction of departure Direction of arrival estimation Angle of arrival United States Department of Agriculture multiple input multiple output systems Targets Multiple signal classification radar Complexity Optimization algorithms Parameter estimation algorithms complexity classes MIMO radar

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Efficient mining of class association rules with the itemset constraint

Efficient mining of class association rules with the itemset...

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作者： Nguyen, Dang Nguyen, Loan T.T. Vo, Bay Pedrycz, Witold Division of Data Science Ton Duc Thang University Ho Chi Minh City Viet Nam Division of Knowledge and System Engineering for ICT Ton Duc Thang University Ho Chi Minh City Viet Nam Faculty of Information Technology Ton Duc Thang University Ho Chi Minh City Viet Nam Faculty of Information Technology Ho Chi Minh City University of Technology Viet Nam College of Electronics and Information Engineering Sejong University Seoul Korea Republic of Department of Electrical and Computer Engineering University of Alberta EdmontonABT6R 2V4 Canada Department of Electrical and Computer Engineering Faculty of Engineering King Abdulaziz University Jeddah21589 Saudi Arabia Systems Research Institute Polish Academy of Sciences Warsaw Poland

Mining class association rules (CARs) with the itemset constraint is concerned with the discovery of rules, which contain a set of specific items in the rule antecedent and a class label in the rule consequent. This task is commonly encountered in mining medical data. For example, when classifying which section of the population is at high risk for the HIV infection, epidemiologists often concentrate on rules which include demographic information such as gender, age, and marital status in the rule antecedent, and HIV-Positive in the rule consequent. There are two naive strategies to solve this problem, namely pre-processing and post-processing. The post-processing methods have to generate and consider a huge number of candidate CARs while the performance of the pre-processing methods depend on the number of records filtered out. Therefore, such approaches are time consuming. This study proposes an efficient method for mining CARs with the itemset constraint based on a lattice structure and the difference between two sets of object identifiers (diffset). Firstly, a lattice structure is built to store all frequent itemsets in the dataset. To reduce memory usage, instead of the entire set of object identifiers, the diffset is used. Secondly, the lattice is traversed to generate only rules which satisfy the itemset constraint. The experimental results show that the proposed algorithm outperforms existing methods in terms of both the mining time and memory usage. © 2016 Elsevier B.V. All rights reserved.

关键词： Data mining

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Front Cover: Impact of Nickel Silicide Rear Metallization on the Series Resistance of Crystalline Silicon Solar Cells (Energy Technol. 9/2018)

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Energy Technology 2018年第9期6卷

作者： Rabab R. Bahabry Amir N. Hanna Arwa T. Kutbee Abdurrahman Gumus Muhammad. M. Hussain Integrated Nanotechnology Laboratory and Integrated Disruptive Electronic Applications (IDEA) Laboratory King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia Department of Physics University of Jeddah Dhahban 23881-285 Saudi Arabia Department of Physics King Abdulaziz University (KAU) Jeddah 21589-80200 Saudi Arabia Computer Electrical and Mathematical Sciences and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia

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Extended Measurement of the Cosmic-Ray Electron and Positron Spectrum from 11 GeV to 4.8 TeV with the Calorimetric Electron Telescope on the International Space Station

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physical Review Letters 2018年第26期120卷 261102-261102页

作者： O. Adriani Y. Akaike K. Asano Y. Asaoka M. G. Bagliesi E. Berti G. Bigongiari W. R. Binns S. Bonechi M. Bongi P. Brogi J. H. Buckley N. Cannady G. Castellini C. Checchia M. L. Cherry G. Collazuol V. Di Felice K. Ebisawa H. Fuke T. G. Guzik T. Hams M. Hareyama N. Hasebe K. Hibino M. Ichimura K. Ioka W. Ishizaki M. H. Israel K. Kasahara J. Kataoka R. Kataoka Y. Katayose C. Kato N. Kawanaka Y. Kawakubo K. Kohri H. S. Krawczynski J. F. Krizmanic T. Lomtadze P. Maestro P. S. Marrocchesi A. M. Messineo J. W. Mitchell S. Miyake A. A. Moiseev K. Mori M. Mori N. Mori H. M. Motz K. Munakata H. Murakami S. Nakahira J. Nishimura G. A. de Nolfo S. Okuno J. F. Ormes S. Ozawa L. Pacini F. Palma P. Papini A. V. Penacchioni B. F. Rauch S. B. Ricciarini K. Sakai T. Sakamoto M. Sasaki Y. Shimizu A. Shiomi R. Sparvoli P. Spillantini F. Stolzi J. E. Suh A. Sulaj I. Takahashi M. Takayanagi M. Takita T. Tamura N. Tateyama T. Terasawa H. Tomida S. Torii Y. Tsunesada Y. Uchihori S. Ueno E. Vannuccini J. P. Wefel K. Yamaoka S. Yanagita A. Yoshida K. Yoshida Department of Physics University of Florence Via Sansone 1—50019 Sesto Fiorentino Italy INFN Sezione di Florence Via Sansone 1—50019 Sesto Fiorentino Italy Department of Physics University of Maryland Baltimore County 1000 Hilltop Circle Baltimore Maryland 21250 USA Astroparticle Physics Laboratory NASA/GSFC Greenbelt Maryland 20771 USA Institute for Cosmic Ray Research The University of Tokyo 5-1-5 Kashiwa-no-Ha Kashiwa Chiba 277-8582 Japan Research Institute for Science and Engineering Waseda University 3-4-1 Okubo Shinjuku Tokyo 169-8555 Japan JEM Utilization Center Human Spaceflight Technology Directorate Japan Aerospace Exploration Agency 2-1-1 Sengen Tsukuba Ibaraki 305-8505 Japan Department of Physical Sciences Earth and Environment University of Siena via Roma 56 53100 Siena Italy INFN Sezione di Pisa Polo Fibonacci Largo B. Pontecorvo 3—56127 Pisa Italy Department of Physics Washington University One Brookings Drive St. Louis Missouri 63130-4899 USA Department of Physics and Astronomy Louisiana State University 202 Nicholson Hall Baton Rouge Louisiana 70803 USA Institute of Applied Physics (IFAC) National Research Council (CNR) Via Madonna del Piano 10 50019 Sesto Fiorentino Italy Department of Physics and Astronomy University of Padova Via Marzolo 8 35131 Padova Italy INFN Sezione di Padova Via Marzolo 8 35131 Padova Italy University of Rome “Tor Vergata” Via della Ricerca Scientifica 1 00133 Rome Italy INFN Sezione di Rome “Tor Vergata” Via della Ricerca Scientifica 1 00133 Rome Italy Institute of Space and Astronautical Science Japan Aerospace Exploration Agency 3-1-1 Yoshinodai Chuo Sagamihara Kanagawa 252-5210 Japan CRESST and Astroparticle Physics Laboratory NASA/GSFC Greenbelt Maryland 20771 USA St. Marianna University School of Medicine 2-16-1 Sugao Miyamae-ku Kawasaki Kanagawa 216-8511 Japan Kanagawa University 3-27-1 Rokkakubashi Kanagawa Yokohama Kanagawa 221-8686 Japan Faculty of Science and Technol

Extended results on the cosmic-ray electron + positron spectrum from 11 GeV to 4.8 TeV are presented based on observations with the Calorimetric Electron Telescope (CALET) on the International Space Station utilizing the data up to November 2017. The analysis uses the full detector acceptance at high energies, approximately doubling the statistics compared to the previous result. CALET is an all-calorimetric instrument with a total thickness of 30 X0 at normal incidence and fine imaging capability, designed to achieve large proton rejection and excellent energy resolution well into the TeV energy region. The observed energy spectrum in the region below 1 TeV shows good agreement with Alpha Magnetic Spectrometer (AMS-02) data. In the energy region below ∼300 GeV, CALET’s spectral index is found to be consistent with the AMS-02, Fermi Large Area Telescope (Fermi-LAT), and Dark Matter Particle Explorer (DAMPE), while from 300 to 600 GeV the spectrum is significantly softer than the spectra from the latter two experiments. The absolute flux of CALET is consistent with other experiments at around a few tens of GeV. However, it is lower than those of DAMPE and Fermi-LAT with the difference increasing up to several hundred GeV. The observed energy spectrum above ∼1 TeV suggests a flux suppression consistent within the errors with the results of DAMPE, while CALET does not observe any significant evidence for a narrow spectral feature in the energy region around 1.4 TeV. Our measured all-electron flux, including statistical errors and a detailed breakdown of the systematic errors, is tabulated in the Supplemental Material in order to allow more refined spectral analyses based on our data.

关键词： Cosmic ray acceleration Cosmic ray composition & spectra Cosmic ray propagation Cosmic ray sources Cosmic rays & astroparticles Particle dark matter

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