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Infrared technology and Applications XLIX 2023

作者： Ogawa, Shinpei Ueno, Hiroshi Yamagishi, Takatoshi Tomii, Hideaki Yamamoto, Hiroshi Takenouchi, Sho Kimata, Masafumi Advanced Technology R&D Center Mitsubishi Electric Corporation 8-1-1 Tsukaguchi-Honmachi Amagasaki Hyogo661-8661 Japan Research & Development Center Nohmi Bosai Ltd. 1-18-13 Chuo Misato Saitama341-0038 Japan Product Development Business Kodenshi Corp. 161 Jyuichi Makishima-cho Uji Kyoto611-0041 Japan 2-1-9 Suimeidai Kawanishi Hyogo666-0116 Japan

ISBN: (数字)9781510661837

ISBN: (纸本)9781510661820

Multispectral uncooled infrared (Ir) sensors are attracting interest for use in applications such as gas analysis, hazardous material recognition, and biological analysis. However, conventional sensors require additional filters or a resonant structure in the vertical direction. To address this challenge, we investigated plasmonic metamaterial absorbers (PMAs) such as plasmonic crystals (PCs), metal–insulator–metal (MIM), and mushroom-type PMAs. Such PMAs exhibit wavelength-selective absorption by surface plasmon resonance (SPr, and the absorption wavelength can be controlled by modifying the features of the surface pattern (e.g., the periodicity of dimples and the micropatch size). Previously, we fabricated thermopiles with PC-type PMAs and used them for wavelength-selective detection. Although PC-type PMAs have advantages such as easy fabrication, robustness against structural fluctuations, and a wide operating wavelength range, they suffer from an incidence-angle dependence and require a large absorber volume. Here, we fabricated thermopiles with encapsulated MIM (EMIM)-type PMAs using a complementary metal oxide semiconductor process. The devices consist of a top encapsulated layer, periodic top micropatches, a flat insulator layer, and a bottom reflector. The encapsulated layer functions as a protective layer. Like MIM-type PMAs, the EMIM-type PMAs exhibit incidence-angle independence and a thin absorber volume, where the top micropatch induces localized SPr with the bottom reflector, and its size mainly determines the absorption wavelength. Spectral measurements showed that wavelength-selective Ir detection can be performed in the mid-Ir wavelength range without any additional filters. We expect the obtained results to contribute to the realization of advanced functional uncooled Ir sensors and expand their range of applications. © 2023 SPIE.

关键词： CMOS integrated circuits

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INTrOdUCTION OF SPErA HYdrOGEN SYSTEMTM FOr MASSIVE HYdrOGEN STOrAGE ANd TrANSPOrTATION 23

INTRODUCTION OF SPERA HYDROGEN SYSTEMTM FOR MASSIVE HYDROGEN...

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23rd World Hydrogen Energy Conference: Bridging Continents by H2, WHEC 2022

作者： Okada, Yoshimi Imagawa, Kenichi Kawai, Hironori Mikuriya, Tomoyuki Yagi, Fuyuki Kaji, Naohiro Chiyoda Croporation Technology Development Department Hydrogen Business Department 4-6-2 Minatomirai Nishi-ku Yokohama2208765 Japan Chiyoda Croporation R&D Center Technology Development Department 3-13 Moriya-cho Kanagawa-ku Yokohama2208765 Japan Chiyoda Croporation Technology Development Department 4-6-2 Minatomirai Nishi-ku Yokohama2208765 Japan Chiyoda Croporation Hydrogen Business Department 4-6-2 Minatomirai Nishi-ku Yokohama2208765 Japan

ISBN: (纸本)9786250008430

Hydrogen energy carrier system is indispensable for decarbonisation through the expansion of renewable energy. The organic chemical hydride method for storing and transporting hydrogen under normal temperature and pressure conditions in the liquid state by incorporating hydrogen atoms into the molecular structure of liquid organic hydrogen carrier (LOHC) is safe and low risk method. Chiyoda started the development of a system employing the method since 2002, named the system "SPErA HydrogenTM" and system completed the international demonstration of massive hydrogen supply chain from Brunei darussalam to Japan in 2020. It is the only system that has completed the international demonstration of the entire process and has moved to the commercialization stage. It is considered that the system is the most inexpensive except ammonia direct combustion with boiler at present and also has a high potential for cost reduction towards the future compared to other methods. © 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.

关键词： Supply chains

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Study on thermal stress behavior of mold type POL tile

Study on thermal stress behavior of mold type POL tile

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Annual IEEE Conference on Applied Power Electronics Conference and Exposition (APEC)

作者： Kei Murayama Kiyoko Tajima Mikiko Kobayashi Junichi Mizushima Shingo Hayashibe Kiyoshi Oi Process Development Dept. R&D Div. Shinko Electric Industries Co. Ltd. Nagano Japan Desigining Technology Dev. R&D Div. Shinko Electric Industries Co. Ltd. Nagano Japan Advanced Products Dev. R&D Div. Shinko Electric Industries Co. Ltd. Nagano Japan

The power module industry requires smaller common packages to meet the rapidly growing demand. Power Over Lay (POL) tile is a promising candidate to meet these requirements. In this report, we will discuss the behavior of mold type POL tiles under thermal stress and the challenges they face. Temperature cycling tests were performed on several POL tile Cu wiring designs and mold resin combinations. The combination of the design with Cu wiring on the entire surface of the device and the use of high-toughness molding resin was demonstrated high reliability in temperature cycles. Thermal stress analysis results using a full-scale model of mold type POL tile with this combination showed decrease in plastic strain at Cu via connection and low damage level at pad opening portion.

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Investigation on cutting fluid use in finish milling of polylactide (PLA) 3d-printed parts 20

Investigation on cutting fluid use in finish milling of poly...

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20th CIrP Conference on Modeling of Machining Operations in Mons, CIrP CMMO 2025

作者： Lorenzoni, Margaux Spitaels, Laurent rivière-Lorphèvre, Edouard Odent, Jérémy M'Saoubi, rachid Cloëz, Liam Fontaine, Michaël ducobu, François Machine Design and Production Engineering Lab Research Institute for Materials Science and Engineering University of Mons Place du Parc 20 Mons7000 Belgium University of Mons Place du Parc 20 Mons7000 Belgium R&D Material and Technology Development Seco Tools AB Björnbacksvägen 2 FagerstaSE-737 82 Sweden Department of Mechanical Engineering Sciences Division of Production and Materials Engineering Lund University Ole Römers väg 1 LundSE-221 00 Sweden FEMTO-ST Institute-Applied Mechanics Dept. Université de Franche-Comté-SUPMICROTECH-CNRS Rue de l'épitaphe 24 BesançonF-25000 France

Fused Filament Fabrication (FFF) is an additive manufacturing process based on material Extrusion (MEX) of polymeric filament. This manufacturing technology is commonly used for personalized production applications and prototyping, allowing to obtain customized parts with complex geometries at a low cost. However, this production technique has its limitations regarding dimensional accuracy and surface roughness of the final parts. To overcome these limitations, finish milling is considered to be a promising technique as it is widely used for metallic parts. Yet, the specific thermal properties of polymers such as low thermal conductivity and low melting temperature are adding a challenge in the determination of optimal cutting conditions. In this context, the use of cutting fluid could be the key to keep the material from melting during milling. Therefore, this paper proposes to compare the impact of using a compressed air flow to dry conditions on the cutting forces and the surface quality obtained on 3d-printed polylactide (PLA) parts. The qualification test of the tool-material couple standard (NF E 66-520-6) will be used as a guideline to determine the relevance of cutting fluid use for cutting conditions varying around an operating point. Moreover, simulated cutting forces using a mechanistic model will be compared to experimental data to evaluate the applicability of the model. © 2025 The Authors.

关键词： Compressed air

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Sand Production Prediction of depleted-reservoir Underground Gas Storage - An experimental study 56

Sand Production Prediction of Depleted-reservoir Underground...

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56th U.S. rock Mechanics/Geomechanics Symposium

作者： Ma, Lijun dong, Jingnan Wang, Jinzhong Zhang, Yuda Li, Guotao Li, Jingcui Department of Well Engineering Supervise Changqing Oil Field Company Shaanxi China CNPC Engineering Technology R&D Company Limited Beijing China Jidong Oilfield Company PetroChina Hebei Tangshan China Research Institute of Petroleum Exploration & Development PetroChina Beijing China

ISBN: (纸本)9780979497575

depleted-reservoirs underground gas storage are playing an increasingly important role in seasonal demanding of natural gas, ensuring stable gas supply and strategic reserves. However, due to the physical properties of the reservoir, the problem of sand production in the wellbore cannot be ignored. This research is based on the high-pressure sand production experiment simulation device system. Using the in-situ core, through experiments to simulate the sand production of the high-pressure gas storage reservoir, the sand production is systematically and quantitatively studied. The experimental results show that there are two key pressures for sand production caused by the destruction of the inner wall of the wellbore, namely, the equivalent initial sand production pressure (critical confining pressure) and the strength of the thick-walled barrel (collapse pressure). After the confining pressure exceeds the equivalent initial sand production pressure, the core begins to produce sand, and the sand has a relatively smaller particle size. The sand production is found to increases linearly with the equivalent confining pressure. After the confining pressure exceeds the strength of the thick-walled barrel, the core body is damaged and a large amount of sand is produced. The sand body has a relatively large particle size. The particle size distribution indicates the increase of sand particle size during the sand production of the gas storage well. This experiment provides guidance for the operation and completion of gas storage in depleted oil reservoirs, and also provides a quantitatively experimental method for the study of wellbore sand production. © 2022 ArMA, American rock Mechanics Association.

关键词： Sand

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Characterization of wear modes in orthogonal milling of 15-5PH stainless steel 24

Characterization of wear modes in orthogonal milling of 15-5...

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24th International ESAFOrM Conference on material Forming, ESAFOrM 2021

作者： david, Tom Methon, Grégory M'Saoubi, rachid Girinon, Mathieu rech, Joël Courbon, Cédric Univ Lyon ENISE ECL ENTPE CNRS LTDS UMR 5513 Saint-EtienneF-42023 France R&D Material and Technology Development Seco Tools AB FagerstaSE-73782 Sweden CETIM 52 avenue Félix-Louat Senlis60300 France

ISBN: (纸本)9782870193020

Tool wear remains of high interest for industry, as it influences process costs and part's surface integrity. Although experimental and analytical investigations have been the main ways to investigate wear, the growing development of computational power enables predicting tool wear based on chip formation simulations. If this has been quite successful in turning, developments in milling are still limited due to the specific nature of this machining operation characterized by an interrupted cutting process leading to mechanical and thermal cyclic loadings onto the cutting tool. Wear modes are often not well characterized and become even more difficult to model as far as hard to machine material such as martensitic stainless steels are concerned. The present work propose to investigate wear in orthogonal milling of a 15-5PH martensitic stainless steel. An experimental campaign is first performed to identify the wear modes when cutting this material with uncoated and coated carbide tools. Milling forces, tool wear and material transfer are especially studied. A multi-scale numerical procedure is then developed by combining an Arbitrary-Lagrangian-Eulerian (ALE) thermomechanical model to a pure thermal sub-model in order to predict the thermomechanical loadings withstood by the tool. The thermal sub-model is applied at the scale of the coating in order to extract the thermal gradients generated by the interrupted cutting. These loadings are finally compared to the reported wear modes to identify a correlation and improve their understanding. © ESAFOrM 2021 - 24th Inter. Conf. on Mat. Forming. All rights reserved.

关键词： Coatings

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Sign-tunable exchange bias effect in proton-intercalated Fe3GaTe2 nanoflakes

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Physical review B 2023年第14期107卷 L140409-L140409页

作者： Chunsheng Wang Jie Wang Wen-Qiang Xie Gaojie Zhang Hao Wu Jianhui Zhou Xiangde Zhu Wei Ning Guopeng Wang Cheng Tan Lan Wang Haifeng du Yu-Jun Zhao Haixing Chang Guolin Zheng Wen-Tong Geng Mingliang Tian School of Physics and Optoelectronic Engineering Anhui University Hefei 230601 Anhui China Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory Chinese Academy of Sciences (CAS) Hefei 230031 Anhui China School of Materials Science and Engineering Hainan University Haikou 570228 China Department of Physics South China University of Technology Guangzhou 510640 China Center for Joining and Electronic Packaging State Key Laboratory of Material Processing and Die and Mold Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China Wuhan National High Magnetic Field Center and Institute for Quantum Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China School of Science RMIT University Melbourne VIC 3001 Australia Shenzhen R&D Center of Huazhong University of Science and Technology (HUST) Shenzhen 518000 China

The exchange-bias (EB) effect, usually arising in ferromagnetic (FM)-antiferromagnetic (AFM) interfaces with uniaxial magnetic anisotropy, holds high potentials in spintronic applications. Here, we report both field-cooling and zero-field cooling EB effects with a maximal EB field |HEB| reaches up to 3859 Oe in above-room-temperature van der Waals (vdW) ferromagnet Fe3GaTe2 nanoflakes at low temperatures. The observed intrinsic EB effects can be largely tuned via the gate-induced proton intercalation. Moreover, we observe an unusual sign-tunable EB effect under different gate voltages after ±2T field cooling, leading to a crossover between positive and negative EB effects. Theoretical analysis based on density functional theory indicates that the magnetic coupling at the FM/AFM interface in proton-intercalated Fe3GaTe2 is highly controllable and can be tuned to be FMI-1 (↑/↓↑, positive EB) or FMI-2 (↓/↓↑, negative EB) magnetic configurations, depending on different H-absorption sites. Our experiments offer a knob to control the sign of EB effects and further open opportunities for more applicable spintronic devices in high-temperature vdW ferromagnets.

关键词： Exchange bias device fabrication density functional theory

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A proposal on dynamic bandwidth allocation for one-dimensionally moving mobile entities

A proposal on dynamic bandwidth allocation for one-dimension...

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International Conference on Information Networking

作者： Yuta Tachikawa Yuki Hatanaka ryo Murakami Tetsuya Yokotani Hiroshi Minemo Seiji Kozaki Takeshi Suehiro Kenichi Nakura Shigenori Tani Department of Electrical and Electronic Engineering (Graduate School of Engineering) Kanazawa Institute of Technology Ishikawa Japan (department of technology) Department of Electrical and Electronic Engineering Kanazawa Institute of Technology Ishikawa Japan (Graduate School of Science and Technology) Shizuoka University Shizuoka Japan Mitsubishi Electric Corporation (Development Division) Information Technology R&D Center Kanagawa Japan

ISBN: (数字)9798331506940

ISBN: (纸本)9798331506957

recent years, with the introduction of 5th generation mobile communication networks, bursty traffic and upstream traffic characteristics have changed significantly. The deployment of small cells and passive optical networks for highspeed broadband services are considered. Passive optical network technology can apply to multiplex many small cells. The authors have proposed BCOM as a bandwidth control scheme for uplink traffic and have carried out bandwidth allocation, assuming the case where mobile vehicles pass according to schedule. In this paper, BCOMs evaluate assuming that mobile vehicles do not arrive on schedule.

关键词： Multiplexing Schedules Bandwidth Channel allocation Passive optical networks Broadband communication resource management Proposals Vehicle dynamics Uplink

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EMI radiated Emission Prediction of Full Bridge Inverter

EMI Radiated Emission Prediction of Full Bridge Inverter

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IEEE International Symposium on Electromagnetic Compatibility - EMC Europe

作者： O Hyun Gwon Jin Kuk Hong Heon Soo Choi Nam Kyu Kim Yong Gi Kim Wook dong Cho Material & Core Technology R&D Team LS Electric.Co. Ltd Anyang South Korea Quality Management Team (Quality Part) LS Electric.Co. Ltd Anyang South Korea

In recent trends, modular multilevel converters are widely used in Flexible AC Transmission Systems (FACTS). These converters consist of numerous sub-modules that perform nonlinear switching operations, resulting in electromagnetic interference (EMI) issues. However, due to high voltage, grid connected system, and safety considerations, troubleshooting EMI problems at the testing level is not feasible. In this paper, we have modeled the parasitic components of the Full Bridge Inverter used in modular multi-level converter (MMC) and verify its operational state through transient analysis in the time domain. The results of the time domain analysis are compared with EMI measurements obtained through 3d analysis, and the methodology is described.

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Asset Administration Shell in Manufacturing: Case Study in Manaus Industrial Complex

Asset Administration Shell in Manufacturing: Case Study in M...

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IEEE International Conference on Consumer Electronics-Taiwan (ICCE-TW)

作者： José E.B.S. Linhares Gustavo M. Torres Matheus S. Uchôa Adriel V. Santos Myke d.M. Valadão diego A. Amoedo Maria regina Araújo Souza Edma V. C.U. Mattos Antônio M.C. Pereira Agemilson P. Silva Allan C. Brito Allan r. A. Silva rômulo S.F. Jean A. O. Nunes Madson r. Lemos Maura r. A. Costa Waldir S.S. Júnior Celso B. Carvalho Federal University of Amazonas and Center for R&D in Elec. and Inf. Tech. (UFAM/CETELI) Amazon Brazil ENVISION/TPV Group Technology Limited Amazon Brazil INDT Institute for Technological Development Amazon Brazil

ISBN: (数字)9798350386844

ISBN: (纸本)9798350386851

In this work, conducted by three partners, UFAM/CETELI, INdT and Envision (TPV Group), we present a system for modeling and sensing data acquired from various machines, including both legacy and modern types, in industrial environments. This approach involves monitoring the on-off state of machines to gather information about their operation on the production line. The results show the successful implementation of the system, highlighting its potential application in predictive maintenance solutions within the context of Industry 4.0.

关键词： Solid modeling Vacuum systems Pumps Production Predictive models data models real-time systems

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