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Solid-State Lighting, SSL 2017

作者： Jaskot, Matthew B. Proudian, Andrew P. Diercks, David R. Gorman, Brian P. Zimmerman, Jeramy D. Materials Science Program Colorado School of Mines GoldenCO80401 United States Department of Physics Colorado School of Mines GoldenCO80401 United States Department of Metallurgy and Materials Engineering Colorado School of Mines GoldenCO80401 United States

We use Atom Probe Tomography to study the effects of OLED guest aggregation and morphology on degradation in single- and mixed-host active layers, showing that mixed-host systems slow degradation.

ISBN: (纸本)9781943580361

We use Atom Probe Tomography to study the effects of OLED guest aggregation and morphology on degradation in single- and mixed-host active layers, showing that mixed-host systems slow degradation.

关键词： Probes

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Reuse of Domestic Wastewater by Membrane Technologies towards Sustainable City Development

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IOP Conference Series: Earth and Environmental science 2019年第1期248卷

作者： Nofiana S H Raharjo T Istirokhatun H Susanto Membrane Research Center (MeR-C) Integrated Laboratory for Research and Services Diponegoro University Semarang Indonesia Master Program of Environmental Science School of Postgraduate Studies Diponegoro University Semarang Indonesia Department of Environmental Engineering Faculty of Engineering Diponegoro University Semarang Indonesia Department of Chemical Engineering Faculty of Engineering Diponegoro University Semarang Indonesia Jl. Prof Soedarto SH Tembalang Semarang Indonesia

Supply of sustainable clean water is an activity that must be carried out towards smart cities. Nevertheless, the availability of water is decreasing both in quality and quantity. Wastewater including domestic wastewater is a potential source that can be reused as clean water supply dealing with water scarcity. This is due to domestic wastewater is produced continuously in large amount. In addition, reuse can reduce the total cost of handling wastewater. One modern technology that can be used for domestic wastewater treatment is membrane technology. Characteristics, various types, advantages, disadvantages, and challenges of membrane technology for domestic wastewater were discussed. This paper presents a review of domestic wastewater reuse by using membrane technology. More specifically this paper discusses domestic wastewater.

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Modified High‐Nickel Cathodes with Stable Surface Chemistry Against Ambient Air for Lithium‐Ion Batteries

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Angewandte Chemie 2018年第22期130卷

作者： Ya You Hugo Celio Jianyu Li Andrei Dolocan Arumugam Manthiram Materials Science and Engineering Program and Texas Materials Institute The University of Texas at Austin Austin TX 78712 USA

High‐Ni layered oxides are promising next‐generation cathodes for lithium‐ion batteries owing to their high capacity and lower cost. However, as the Ni content increases over 70 %, they have a high dynamic affinity towards moisture and CO 2 in ambient air, primarily reacting to form LiOH, Li 2 CO 3 , and LiHCO 3 on the surface, which is commonly termed “residual lithium”. Air exposure occurs after synthesis as it is common practice to handle and store them under ambient conditions. The air exposure leads to significant performance losses, and hampers the electrode fabrication, impeding their practical viability. Herein, we show that substituting a small amount of Al for Ni in the crystal lattice notably improves the chemical stability against air by limiting the formation of LiOH, Li 2 CO 3 , LiHCO 3 , and NiO in the near‐surface region. The Al‐doped high‐Ni oxides display a high capacity retention with excellent rate capability and cycling stability after being exposed to air for 30 days.

关键词： Aluminiumdotierung Kathoden Li-Ionen-Batterien Luftempfindlichkeit Nickel-Schichtoxide

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Analysis of Amorphous-to-crystalline Germanium Stack with Cs-corrected Analytical STEM

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Microscopy and Microanalysis 2017年第S1期23卷 1514-1515页

作者： Dalaver H. Anjum Kwang H. Lee Guangnan Zhou Qiang Zhang Nini Wei Guangrui (Maggie) Xia Chuan S. Tan Xixiang Zhang Imaging and Characterization Lab King Abdullah University of Science & Technology (KAUST) Saudi Arabia Singapore-MIT Alliance for Research and Technology School of Electrical and Electronic Engineering Nanyang Technological University Singapore Department of Materials Science & Engineering University of British Columbia Canada Materials Science & Engineering Program King Abdullah University of Science & Technology (KAUST) Saudi Arabia

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Molecular Design Strategy for Ordered Mesoporous Stoichiometric Metal Oxide

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Angewandte Chemie 2019年第44期131卷

作者： Changyao Wang Xiaoyue Wan Linlin Duan Peiyuan Zeng Liangliang Liu Dingyi Guo Yuan Xia Ahmed A. Elzatahry Yongyao Xia Wei Li Dongyuan Zhao Laboratory of Advanced Materials Department of Chemistry Shanghai Key Lab of Molecular Catalysis and Innovative Materials iChEM and State Key Laboratory of Molecular Engineering of Polymers Fudan University Shanghai 200433 China Institute of Advanced Synthesis School of Chemistry and Molecular Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 China Materials Science and Technology Program College of Arts and Sciences Qatar University PO Box 2713 Doha Qatar

A molecular design strategy is used to construct ordered mesoporous Ti 3+ ‐doped Li 4 Ti 5 O 12 nanocrystal frameworks (OM‐Ti 3+ ‐Li 4 Ti 5 O 12 ) by the stoichiometric cationic coordination assembly process. Ti 4+ /Li + ‐citrate chelate is designed as a new molecular precursor, in which the citrate can not only stoichiometrically coordinate Ti 4+ with Li + homogeneously at the atomic scale, but also interact strongly with the PEO segments in the Pluronic F127. These features make the co‐assembly and crystallization process more controllable, thus benefiting for the formation of the ordered mesostructures. The resultant OM‐Ti 3+ ‐Li 4 Ti 5 O 12 shows excellent rate (143 mAh g −1 at 30 C) and cycling performances (<0.005 % fading per cycle). This work could open a facile avenue to constructing stoichiometric ordered mesoporous oxides or minerals with highly crystalline frameworks.

关键词： Assemblierung Li4Ti5O12 Lithium-Ionen-Batterien Mesoporöse Materialien

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Beyond Low Earth Orbit: Biological Research, Artificial Intelligence, and Self-Driving Labs

arXiv

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arXiv 2021年

作者： Sanders, Lauren M. Yang, Jason H. Scott, Ryan T. Qutub, Amina Ann Martin, Hector Garcia Berrios, Daniel C. Hastings, Jaden J.A. Rask, Jon Mackintosh, Graham Hoarfrost, Adrienne L. Chalk, Stuart Kalantari, John Khezeli, Kia Antonsen, Erik L. Babdor, Joel Barker, Richard Baranzini, Sergio E. Beheshti, Afshin Delgado-Aparicio, Guillermo M. Glicksberg, Benjamin S. Greene, Casey S. Haendel, Melissa Hamid, Arif A. Heller, Philip Jamieson, Daniel Jarvis, Katelyn J. Komarova, Svetlana V. Komorowski, Matthieu Kothiyal, Prachi Mahabal, Ashish Manor, Uri Mason, Christopher E. Matar, Mona Mias, George I. Miller, Jack Myers, Jerry G. Nelson, Charlotte Oribello, Jonathan Park, Seung-Min Parsons-Wingerter, Patricia Prabhu, R.K. Reynolds, Robert J. Saravia-Butler, Amanda Saria, Suchi Sawyer, Aenor Singh, Nitin Kumar Soboczenski, Frank Snyder, Michael Soman, Karthik Theriot, Corey A. van Valen, David Venkateswaran, Kasthuri Warren, Liz Worthey, Liz Zitnik, Marinka Costes, Sylvain V. Blue Marble Space Institute of Science Space Biosciences Division NASA Ames Research Center Moffett Field CA94035 United States Center for Emerging and Re-Emerging Pathogens Department of Microbiology Biochemistry and Molecular Genetics Rutgers New Jersey Medical School NewarkNJ07103 United States KBR Space Biosciences Division NASA Ames Research Center Moffett Field CA94035 United States AI MATRIX Consortium Department of Biomedical Engineering University of Texas San Antonio and UT Health Sciences San AntonioTX78249 United States Biological Systems and Engineering Division Lawrence Berkeley National Lab. BerkeleyCA94608 United States DOE Agile BioFoundry EmeryvilleCA94608 United States Joint BioEnergy Institute EmeryvilleCA94608 United States Department of Physiology and Biophysics Weill Cornell Medicine New YorkNY10065 United States Office of the Center Director NASA Ames Research Center Moffett Field CA94035 United States Bay Area Environmental Research Institute NASA Ames Research Center Moffett Field CA94035 United States Space Biosciences Division NASA Ames Research Center Moffett Field CA94035 United States Department of Chemistry University of North Florida JacksonvilleFL32224 United States Center for Individualized Medicine Department of Surgery Department of Quantitative Health Sciences Mayo Clinic RochesterMN55905 United States Department of Emergency Medicine Center for Space Medicine Baylor College of Medicine HoustonTX77030 United States Department of Microbiology and Immunology Department of Otolaryngology Head and Neck Surgery University of California San Francisco San FranciscoCA94143 United States The Gilroy AstroBiology Research Group The University of Wisconsin - Madison MadisonWI53706 United States Weill Institute for Neurosciences Department of Neurology University of California San Francisco San FranciscoCA94158 United States Data Science Analytics Georgia Institute of Technology Lima15024

Space biology research aims to understand fundamental effects of spaceflight on organisms, develop foundational knowledge to support deep space exploration, and ultimately bioengineer spacecraft and habitats to stabilize the ecosystem of plants, crops, microbes, animals, and humans for sustained multi-planetary life. To advance these aims, the field leverages experiments, platforms, data, and model organisms from both spaceborne and ground-analog studies. As research is extended beyond low Earth orbit, experiments and platforms must be maximally autonomous, light, agile, and intelligent to expedite knowledge discovery. Here we present a summary of recommendations from a workshop organized by the National Aeronautics and Space Administration on artificial intelligence, machine learning, and modeling applications which offer key solutions toward these space biology challenges. In the next decade, the synthesis of artificial intelligence into the field of space biology will deepen the biological understanding of spaceflight effects, facilitate predictive modeling and analytics, support maximally autonomous and reproducible experiments, and efficiently manage spaceborne data and metadata, all with the goal to enable life to thrive in deep space. © 2021, CC BY.

关键词： Predictive analytics

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Innentitelbild: Diels–Alder Conversion of Acrylic Acid and 2,5-Dimethylfuran topara-Xylene Over Heterogeneous Bi-BTC Metal-Organic Framework Catalysts Under Mild Conditions (Angew. Chem. 2/2021)

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Angewandte Chemie 2020年第2期133卷

作者： Jyun-Yi Yeh Season S. Chen Shih-Cheng Li Celine H. Chen Dr. Tetsuya Shishido Dr. Daniel C. W. Tsang Dr. Yusuke Yamauchi Yi-Pei Li Prof. Kevin C.-W. Wu International Graduate Program of Molecular Science and Technology (NTU-MST) National Taiwan University No. 1 Sec. 4 Roosevelt Road Taipei 10617 Taiwan Taiwan International Graduate Program (TIGP) Academia Sinica No. 128 Sec. 2 Academia Road Taipei 11529 Taiwan Department of Chemical Engineering National (Taiwan) University No. 1 Sec. 4 Roosevelt Road Taipei 10617 Taiwan School of Engineering Brown University Providence RI 02912 USA Department of Applied Chemistry for Environment Tokyo Metropolitan University 1-1 Minami-osawa Hachioji Tokyo 192-0397 Japan Department of Civil and Environmental Engineering The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong China JST-ERATO Yamauchi Materials Space-Tectonics Project Kagami Memorial Research Institute for Materials Science and Technology Waseda University 2-8-26 Nishiwaseda Shinjuku-ku Tokyo 169-0051 Japan Australian Institute for Bioengineering and Nanotechnology (AIBN) School of Chemical Engieering The University of Queensland Brisbane QLD 4072 Australia Center of Atomic Initiative for New Materials National Taiwan University No. 1 Sec. 4 Roosevelt Road Taipei 10617 Taiwan

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Spin freezing into a disordered state in CaFeTi2O6 synthesized under high pressure

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Physical Review B 2018年第6期98卷 064201-064201页

作者： X. Li W. M. Xu M. A. McGuire Y. Cho M. C. Downer Y. Wan X. Y. Li Z. Y. Li Q. Cui J.-G. Cheng J. B. Goodenough J.-S. Zhou Materials Science and Engineering Program Department of Mechanical Engineering University of Texas at Austin Austin Texas 78712 USA School of Physics and Astronomy Tel Aviv University 69978 Tel Aviv Israel Materials Science and Technology Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA Department of Physics University of Texas at Austin Austin Texas 78712 USA Rudolf Peierls Centre for Theoretical Physics University of Oxford Oxford OX1 3NP United Kingdom Beijing National Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of Sciences Beijing 100190 China

Double perovskites exhibit a variety of interesting phenomena due to numerous combinations of cation orderings and distortions. CaMnTi2O6 and CaFeTi2O6 are the only two discovered double perovskites that have the columnar type A-site ordering associated with the a+a+c− titling system. The former perovskite, synthesized recently, has a polar structure below Tc and shows an unusual ferroelectricity. The latter, while synthesized decades ago, received less investigation. Here, we have synthesized CaFeTi2O6 under high pressure and carried out thorough characterizations through measurements of x-ray powder diffraction (XRD), second harmonic generation (SHG), dc and ac magnetization, Mössbauer spectra, resistivity, thermoelectric power, and specific heat. Although the structural refinement of the XRD pattern cannot distinguish two possible tetragonal phases, SHG measurements help to rule out the possibility of a polar structure observed in CaMnTi2O6. Fitting the paramagnetic susceptibility to a Curie-Weiss law gives a negligible Weiss constant. The weak exchange interaction gives way to a dipole-dipole interaction and single-ion anisotropy. An anomaly at 1.2 K in the specific heat is too broad for a magnetic transition, but suggestive of a spin-ice-like state as in the pyrochlores. Mössbauer spectroscopy shows two distinct iron sites, as expected for the crystal structure. Both sites are occupied by high-spin Fe2+ as indicated by the isomer shift. The sharply different temperature dependence of the quadrupole splitting at the two iron sites can be well explained based on the local structural distortions from the refinement of XRD patterns. The line broadening associated with long spin-relaxation times is observed at 6 K as the spin freezing transition is approached from high temperatures.

关键词： Magnetic interactions Magnetism Structural properties Thermal properties Transport phenomena

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Beyond Low Earth Orbit: Biomonitoring, Artificial Intelligence, and Precision Space Health

arXiv

引用

arXiv 2021年

作者： Scott, Ryan T. Antonsen, Erik L. Sanders, Lauren M. Hastings, Jaden J.A. Park, Seung-Min Mackintosh, Graham Reynolds, Robert J. Hoarfrost, Adrienne L. Sawyer, Aenor Greene, Casey S. Glicksberg, Benjamin S. Theriot, Corey A. Berrios, Daniel C. Miller, Jack Babdor, Joel Barker, Richard Baranzini, Sergio E. Beheshti, Afshin Chalk, Stuart Delgado-Aparicio, Guillermo M. Haendel, Melissa Hamid, Arif A. Heller, Philip Jamieson, Daniel Jarvis, Katelyn J. Kalantari, John Khezeli, Kia Komarova, Svetlana V. Komorowski, Matthieu Kothiyal, Prachi Mahabal, Ashish Manor, Uri Martin, Hector Garcia Mason, Christopher E. Matar, Mona Mias, George I. Myers, Jerry G. Nelson, Charlotte Oribello, Jonathan Parsons-Wingerter, Patricia Prabhu, R.K. Qutub, Amina Ann Rask, Jon Saravia-Butler, Amanda Saria, Suchi Singh, Nitin Kumar Soboczenski, Frank Snyder, Michael Soman, Karthik van Valen, David Venkateswaran, Kasthuri Warren, Liz Worthey, Liz Yang, Jason H. Zitnik, Marinka Costes, Sylvain V. KBR Space Biosciences Division NASA Ames Research Center Moffett FieldCA94035 United States Department of Emergency Medicine Center for Space Medicine Baylor College of Medicine HoustonTX77030 United States Blue Marble Space Institute of Science Space Biosciences Division NASA Ames Research Center Moffett FieldCA94035 United States Department of Physiology and Biophysics Weill Cornell Medicine New YorkNY10065 United States Department of Urology Department of Radiology Stanford University School of Medicine StanfordCA94305 United States Bay Area Environmental Research Institute NASA Ames Research Center Moffett FieldCA94035 United States Mortality Research & Consulting Inc. HoustonTX77058 United States Space Biosciences Division NASA Ames Research Center Moffett FieldCA94035 United States UC Space Health Department of Orthopaedic Surgery University of California San Francisco San FranciscoCA94143 United States Center for Health AI Department of Biochemistry and Molecular Genetics University of Colorado School of Medicine Anschutz Medical Campus AuroraCO80045 United States Hasso Plattner Institute for Digital Health at Mount Sinai Department of Genetics and Genomic Sciences Icahn School of Medicine at Mount Sinai New YorkNY10065 United States Department of Preventive Medicine and Community Health UTMB GalvestonTX77551 United States Human Health and Performance Directorate NASA Johnson Space Center HoustonTX77058 United States Department of Microbiology and Immunology Department of Otolaryngology Head and Neck Surgery University of California San Francisco San FranciscoCA94143 United States The Gilroy AstroBiology Research Group The University of Wisconsin Madison MadisonWI53706 United States Weill Institute for Neurosciences Department of Neurology University of California San Francisco San FranciscoCA94158 United States Department of Chemistry University of North Florida JacksonvilleFL32224 United States Data Scienc

Human space exploration beyond low Earth orbit will involve missions of significant distance and duration. To effectively mitigate myriad space health hazards, paradigm shifts in data and space health systems are necessary to enable Earth-independence, rather than Earth-reliance. Promising developments in the fields of artificial intelligence and machine learning for biology and health can address these needs. We propose an appropriately autonomous and intelligent Precision Space Health system that will monitor, aggregate, and assess biomedical statuses;analyze and predict personalized adverse health outcomes;adapt and respond to newly accumulated data;and provide preventive, actionable, and timely insights to individual deep space crew members and iterative decision support to their crew medical officer. Here we present a summary of recommendations from a workshop organized by the National Aeronautics and Space Administration, on future applications of artificial intelligence in space biology and health. In the next decade, biomonitoring technology, biomarker science, spacecraft hardware, intelligent software, and streamlined data management must mature and be woven together into a Precision Space Health system to enable humanity to thrive in deep space. © 2021, CC BY.

关键词： Earth (planet)

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Correction: Tetrafluorinated phenylpyridine based heteroleptic iridium(iii) complexes for efficient sky blue phosphorescent organic light-emitting diodes

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Journal of materials Chemistry C 2020年第21期8卷 7256-7256页

作者： Zhao Chen Songwut Suramitr Nianyong Zhu Cheuk-Lam Ho Supa Hannongbua Shuming Chen Wai-Yeung Wong School of Applied Physics and Materials Wuyi University Jiangmen 529020 P. R. China Institute of Molecular Functional Materials and Department of Chemistry Hong Kong Baptist University Waterloo Road Kowloon Tong Hong Kong P. R. China Department of Chemistry Faculty of Science Kasetsart University Bangkok 10900 Thailand Center for Advanced Studies in Nanotechnology for Chemical Food and Agricultural Industries KU Institute for Advanced Studies Kasetsart University Bangkok 10900 Thailand Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University (PolyU) Hong Hom Hong Kong P. R. China PolyU Shenzhen Research Institute Shenzhen P. R. China Department of Electrical and Electronic Engineering Southern University of Science and Technology Shenzhen P. R. China

Correction for ‘Tetrafluorinated phenylpyridine based heteroleptic iridium(III) complexes for efficient sky blue phosphorescent organic light-emitting diodes’ by Zhao Chen et al., J. Mater. Chem. C, 2020, 8, 2551–2...

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