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Effects of the preparation solvent on structure and catalytic properties of NiCoB amorphous alloy catalysts for hydrogenation of furfural

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ranliao Huaxue Xuebao/Journal of Fuel Chemistry and technology 2017年第7期45卷 817-827页

作者： Guo, Hai-Jun Tang, Wei-Chao Zhang, Hai-rong Peng, Fen Wang, Can Huang, Qian-Lin Xiong, Lian Chen, Xin-de Ouyang, Xin-Ping Qiu, Xue-Qing Key Laboratory of Renewable Energy Chinese Academy of Sciences Guangzhou510640 China Guangdong Key Laboratory of New and Renewable Energy Research and Development Guangzhou510640 China Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Guangzhou510640 China R&D Center of Xuyi Attapulgite Applied Technology Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Xuyi 211700 China School of Chemistry & Chemical Engineering South China University of Technology Guangzhou510640 China University of Chinese Academy of Sciences Beijing100049 China

A series of NiCoB amorphous alloy catalysts were prepared by chemical reduction method in different single and mixed solvent systems and their performance for liquid phase hydrogenation of furfural (FUr) was evaluated. The catalysts were also characterized by N2 adsorption-desorption, ICP, FE-SEM, HrTEM, Xrd and XPS. The results showed that the surface tension, viscosity, polarity and solubility parameter of preparation solvent had important effects on the composition, morphology, structure and the catalytic properties of FUr hydrogenation of the NiCoB amorphous alloy catalyst. The NiCoB-MEG catalyst prepared by the mixed solvent of methanol/ethylene glycol (MEG, volume ratio of 1:1) showed the optimum liquid phase hydrogenation performance of FUr to furfuryl alcohol (FA) with a FUr conversion of 96.4% and a FA selectivity of 83.49%. It can be due to the improvement of dispersion and reduction of metallic components by the synergistic effect between methanol and ethylene glycol. © 2017, Science Press. All right reserved.

关键词： Furfural

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Innovative design of an Air Cooled Ferrite Permanent Magnet Assisted Synchronous reluctance Machine for Automotive Traction Application

Innovative Design of an Air Cooled Ferrite Permanent Magnet ...

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International Conference on Electrical Machines

作者： J. Juergens A. Fricasse L. Marengo J. Gragger M. de Gennaro B. Ponick Institute of Drive Systems and Power Electronics Leibniz-Universitat Hannover R&D EMEA Product Development E/E & Connectivity Vehicle Research & Innovation Centro Ricerche Fiat S.C.p.A. Mobility Department Electric Drive Technologies AIT Austrian Institute of Technology

ISBN: (纸本)9781509025398

This paper presents the innovative design of an air cooled permanent magnet assisted synchronous reluctance machine (PMaSyrM) for automotive traction application. Key design features include low cost ferrite magnets in an optimized rotor geometry with high saliency ratio, low weight and sufficient mechanical strength as well as a tailored hairpin stator winding in order to meet the demands of an A-segment battery electric vehicle (BEV). Effective torque ripple reduction techniques are analyzed and a suitable combination is chosen to keep additional manufacturing measures as low as possible. Although the ferrite magnets exhibit low remanence, it is shown that their contribution to the electrical machine's performance is essential in the field weakening region. Efficiency optimized torque-speed-characteristics are identified, including additional losses of the inverter, showing an overall system efficiency of more than 94%. Lastly, the results of no load measurements of a prototype are compared to the FEM simulation results, indicating the proposed design of a PMaSyrM as a cost-effective alternative to state-of-the-art permanent magnet synchronous machines (PMSM) for vehicle traction purposes.

关键词： Air cooled machine Efficiency-optimized torque-speed-maps Electric vehicle Ferrite magnet Hairpin winding Permanent magnet assisted synchronous reluctance machine Slotted rotor Step-Skewing Torque ripple reduction

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A case study of electric chiller performance bottleneck diagnosis by root cause analysis

A case study of electric chiller performance bottleneck diag...

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International Conference on Information technology, Information Systems and Electrical Engineering (ICITISEE)

作者： Zhang Xiaoming Akiko Sato Yutaka Kudo Tomohiro Nakamura Jun Okitsu Hidetaka Aoki Mohd Amin Abd Majid Research and Development Centre Hiatachi Asia Ltd. Singapore Center for Technology Innovation Hitachi Ltd. Yokohama Japan R&D Department Hitachi Asia Malaysia Sdn. Bhd. Kuala Lumpur Malaysia Department of Mechanical Engineering Universiti Teknologi PETRONAS Tronoh Malaysia

ISBN: (纸本)9781509015689

As one of the core cooling equipment in district cooling system, latest electric chiller can achieve high energy efficiency and low CO 2 emission. In recent years, many researches have been conducted on cooling plant performance evaluation and anomaly detection, but very few can quantitatively detect root causes of electric chiller's performance anomaly. In the case study at district cooling plant of UTP (Universiti Teknologi PETrONAS), we adapted rCA (root Cause Analysis) diagnosis method from steam absorption chiller to electric chiller; developed two bottleneck models for electric chiller's COP (Coefficient of Performance) and CHW (CHilled Water supply) performance diagnosis. By applying new rCA models and method to field trial at UTP campus cooling system, we effectively diagnosed the root cause for electric chillers' performance degradation during period from 2014 to 2015.

关键词： Cooling Correlation Absorption Mathematical model Correlation coefficient Linear regression Information technology

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Corrigendum to “A formic acid hydrogen generator using Pd/C 3 N 4 catalyst for mobile proton exchange membrane fuel cell systems” [Energy 112 (2016) 679–685]

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Energy 2017年 125卷 860-860页

作者： Taek Hyun Oh Jin Hee Lee Yeong Cheon Kim Chang Won Yoon Launcher Thermal & Aerodynamics Team Launcher Technology Development Office KSLV-II R&D Head Office KARI (Korea Aerospace Research Institute) 169-84 Gwahak-ro Yuseong-gu Daejeon 34133 Republic of Korea Fuel Cell Research Center Korea Institute of Science and Technology 5 Hwarang-ro 14-gil Seongbuk-gu Seoul 02792 Republic of Korea

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Simulation of shielding performance against near field coupling to EMI filter for power electronic converter using FEM

Simulation of shielding performance against near field coupl...

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IEEE International Symposium on Electromagnetic Compatibility - EMC Europe

作者： Keita Takahashi Yuichiro Murata Yusuke Tsubaki Tetsuro Fujiwara Hideto Maniwa Naohisa Uehara Mitsubishi Electric Corporation Advanced Technology R&D Center Amagasaki Japan Mitsubishi Electric Corporation Automotive Electronics Development Center Himeji Japan Himeji Engineering Office Mitsubishi Electric Engineering Co. Ltd. Himeji Japan Mitsubishi Denki Kabushiki Kaisha Chiyoda-ku Tokyo JP

ISBN: (纸本)9781509014170

When designing an Electromagnetic interference (EMI) filter for power electronic converters, we should consider the shielding performance against the external near field coupling to the EMI filter as well as the attenuation performance. In this paper, we studied the validity of the Finite Element Method (FEM) simulation of the EMI filter for predicting the shielding performance before a trial manufacture. First, we created models of capacitors and common mode choke coils which can simulate their impedance characteristics. Next, using these component models, the assembled EMI filter model was created. We compared the measured and simulated results to verify the model. The shielding performance was evaluated using a loop coil as an external near field source. Consequently, the simulated results agreed with the measured results well.

关键词： Electromagnetic interference Ports (Computers) Coils Couplings Capacitors Microwave filters Impedance

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74-2: Collimated Flux deposition technology for rGB SBS OLEd displays

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SId Symposium digest of Technical Papers 2016年第1期47卷

作者： Shinichi Kawato Satoshi Inoue Yuhki Kobayashi Seiichi Mitsui Display Device Company R&D Center Device Technology Development Depart Sharp Corporation Osaka Japan

We have developed a novel deposition technology that makes possible to pattern rGB SBS with high resolution onto large substrate without the mask contact. This technology is combination of evaporation flux collimation technique and scanning substrate technique above small mask, and called as Collimated Flux deposition(CFd) technology. Using this technology, we built 326ppi rGB Side-by-side display.

关键词： OLEd deposition CFd, Mask Side by side high resolution

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Anthropological Theory for Ethnography in Business

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Ethnographic Praxis in Industry Conference Proceedings 2016年第1期2016卷 555-559页

作者： KATHI KITNEr JAMIE SHErMAN PhD is a cultural anthropologist who has over 30 years conducting ethnographic fieldwork across a wide spectrum of topics: the role of gender and class in technology adoption economic development environmental and ecological sciences and drug addiction. PhD is a cultural anthropologist (PhD Princeton 2011) with 12 years’ experience in domestic and international research including industry product groups R&D and academia.

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Cross‐Coupling of α‐Carbonyl Sulfoxonium Ylides with C−H Bonds

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Angewandte Chemie 2017年第42期129卷

作者： Manuel Barday Christopher Janot Nathan r. Halcovitch James Muir Christophe Aïssa Department of Chemistry University of Liverpool Crown Street Liverpool L69 7ZD UK Department of Chemistry Lancaster University Bailrigg Lancaster LA1 4YB UK Pharmaceutical Technology and Development AstraZeneca R&D Silk Road Business Park Charter Way Macclesfield Cheshire SK10 2NA UK

The functionalization of carbon–hydrogen bonds in non‐nucleophilic substrates using α‐carbonyl sulfoxonium ylides has not been so far investigated, despite the potential safety advantages that such reagents would provide over either diazo compounds or their in situ precursors. described herein are the cross‐coupling reactions of sulfoxonium ylides with C(sp 2 )−H bonds of arenes and heteroarenes in the presence of a rhodium catalyst. The reaction proceeds by a succession of C−H activation, migratory insertion of the ylide into the carbon–metal bond, and protodemetalation, the last step being turnover‐limiting. The method is applied to the synthesis of benz[c]acridines when allied to an iridium‐catalyzed dehydrative cyclization.

关键词： C-H-Aktivierung Homogene Katalyse rhodium Schwefel Ylide

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Compressed Air Energy Storage – An Option for Medium to Large Scale Electrical-energy Storage

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Energy Procedia 2016年 88卷 698-702页

作者： Marcus Budt daniel Wolf roland Span Jinyue Yan Fraunhofer Institute for Environmental Safety and Energy Technology UMSICHT Division: Energy Osterfelder Str. 3 46047 Oberhausen Germany Heliocentris Industry GmbH R&D Clean Energy Solutions Rudower Chaussee 29 12489 Berlin Germany Thermodynamics Ruhr-University Bochum Universitätsstr. 150 44805 Bochum Germany School of Chemical Engineering and Technology KTH Teknikringen 42 SE-100 44 Stockholm School of Sustainable Development of Society and Technology Mälardalen University SE-721 23 Västerås Sweden

This contribution presents the theoretical background of compressed air energy storage, examples for large scale application of this technology, chances and obstacles for its future development, and areas of research ... 详细信息

关键词： compressed air energy storage fundamentals of compressed air energy storage established technology potentials and obstacles areas of future research and development

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On the Mechanical Stresses of Cu Through-Silicon Via (TSV) Samples Fabricated by SK Hynix vs. SEMATECH – Enabling robust and reliable 3-d Interconnect/Integrated Circuit (IC) technology

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Procedia Engineering 2016年 139卷 101-111页

作者： Tian Tian r. Morusupalli H. Shin H.-Y. Son K.-Y. Byun Y.-C. Joo r. Caramto L. Smith Y-L. Shen M. Kunz N. Tamura A.S. Budiman Maxim Integrated San Jose CA Component Quality and Technology (CQT) Cisco Systems San Jose CA 95134 Department Of Materials Science & Engineering Seoul National University (SNU) Republic of Korea PKG Development Group R&D Division Hynix Semiconductor Inc. Republic of Korea SEMATECH Albany NY 12203 Department Of Mechanical Engineering University of New Mexico (UNM) Albuquerque NM 87131 Advanced Light Source (ALS) Lawrence Berkeley National Laboratory (LBNL)Berkeley CA 94720 Singapore University of Technology and Design (SUTD) Singapore 487372

One of the key enablers for the successful integration of 3-d interconnects using the Through-Silicon Via (TSV) schemes is the control of the mechanical stresses in the Cu TSV itself as well as in the surrounding silicon substrate. The synchrotron-sourced X-ray microdiffraction technique has been recognized to allow some important advantages compared to other techniques in characterization of the mechanical stresses in a TSV sample. This approach have been used to study Cu TSV samples from SK Hynix, Inc. earlier as well as more recently from SEMATECH, and we have found interesting differences in the stress states of the Cu TSV. We proposed a possible explanation of the observed differences. This fundamental understanding could lead to improved stress control and hence reliability in the Cu TSV samples, as well as to reduce its impact to the silicon electron mobility and hence to device performance in general.

关键词： 3-d interconnects Cu TSV X-ray microdiffraction

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