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Effect of Steel Slag on Soil Fertility and Plant Growth

Journal of Agricultural Chemistry and Environment 2022年第3期11卷 209-221页

作者： Zakirul Islam Quoc Thinh Tran Shohei Koizumi Fumitaka Kato Kimio Ito Kiwako S. Araki Motoki Kubo Department of Biotechnology Faculty of Life Sciences Ritsumeikan University Noji Higashi 1-1-1 Kusatsu Shiga Japan Advanced Technology Research Laboratories Research and Development Nippon Steel Corporation 20-1 Shintomi Futtsu Chiba Japan Resource and Process Solution Division Mineral Resources Department Nippon Steel Corporation 20-1 Shintomi Futtsu Chiba Japan

The effective utilization of steel slag, a byproduct produced in large quantities from the steel refining process, is an important issue. Because steel slag contains abundant mineral components, the effects of steel slag on soil bacterial biomass and plant mineral uptake were analyzed in this study. The soil pH increased in proportion to the amount of steel slag added. A lower concentration (0.2% to 1%) of steel slag addition did not change the bacterial biomass. However, a higher concentration of steel slag (above 1%) had a negative effect on bacterial biomass. A lower amount of steel slag (0.2% to 1%) addition in soil leads to increased mineral (Ca, Mg, and Fe) uptake and plant growth in Brassica rapa var. periviridis and Spinacia oleracea L. However, mineral uptake by the plants decreased when a large amount of steel slag (above 1%) was added to the soil. Low concentrations of steel slag (0.2% to 1%) in soil had positive effects on plant growth, mineral uptake of plants, and bacterial biomass.

关键词： Bacterial Biomass Mineral Uptake Nitrogen Circulation Phosphorus Circulation Plant Growth Steel Slag

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Crevice Corrosion of Stainless Steels ―Initiation ＆ Propagation Mechanism and Its Evaluation Tests―

Zairyo to Kankyo/ Corrosion Engineering

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Zairyo to Kankyo/ Corrosion Engineering 2021年第3期70卷 77-97页

作者： Kajimura, Haruhiko Matsuhashi, Ryo Matsuoka, Kazumi Nose, Kiyomi Nagaoka, Akira Doi, Takashi Research & Development Center Nippon Steel Stainless Steel Corporation Material Performance Solution Center Nippon Steel Technology Corporation Fundamental Metallugy Research Laboratories Advanced Technology Research Laboratories Nippon Steel Corporation 3434 Shimata Hikari-City7438550 Japan

This paper is the comprehensive paper on the crevice corrosion mechanism for stainless steels by using the newest in-situ instruments. The in-situ observation apparatus, the in-situ semiconductor pH sensor and the in-situ raman spectroscopy were applied to the study of the crevice corrosion behavior of stainless steels in Cl− solution. The propagation of crevice corrosion was divided to 4 stages of Stage I〜Stage IV. The propagation behavior in these Stages was closely related to the hydration and the formation of metal coordination compounds（hydrolysis and chlorido complex ions）. The reppassivation of crevice corrosion was achieved by the pH raise resulting from hydrogen generation in the crevice as cathodic reaction. Furthermore, it was cleared that the initiation of crevice corrosion was caused by the metastable pitting in the crevice. The new evalutation methods on the initiation and propagation of crevice corrosion were proposed. © 2021 Japan Society of Corrosion Engineering. All rights reserved.

关键词： Stainless steel

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Impact of Malnutrition on Low Muscle Mass in Community-Dwelling Older People in Singapore: Findings from the SHIELD study

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Current developments in Nutrition 2020年第SUPPLEMENT_2期4卷 4140080-4140080页

作者： Tey, Siew Ling Huang Chew, Samuel Teong Berde, Yatin Baggs, Geraldine How, Choon How Cheong, Magdalin Low, Yen Ling Tan, Ngiap Chuan Thu Huynh, Dieu Thi Abbott Nutrition Research and Development Changi General Hospital Cognizant Technologies Solution Pvt. Ltd. Abbott Laboratories SingHealth Polyclinics

AbstractObjectivesMalnutrition contributes to loss of muscle mass. There is limited information on the prevalence of low muscle mass in community-dwelling older people who are (not) at risk of malnutrition. Factors associated with muscle mass are also not well characterized. This cross-sectional study aimed to determine the prevalence of low appendicular skeletal muscle mass index (ASMI; ASM/height 2) in older people with normal nutritional status (Malnutrition Universal Screening Tool, MUST risk category = low) and those at risk of malnutrition (MUST risk category = medium or high), and to determine factors associated with ASMI. MethodsStrengthening Health In ELDerly through nutrition (SHIELD) is a study involving 1211 (400 with normal nutritional status and 811 at risk of malnutrition) community-dwelling older people aged ≥65 years in Singapore. Low ASMI was determined by bioelectrical impedance analysis (Asian Working Group for Sarcopenia, 2014). ResultsOne in five (20.6%) nourished participants had low ASMI vs. four in five (81.3%) participants at risk of malnutrition had low ASMI ( P < 0.0001). Older people with low ASMI were more likely to be admitted to the hospital, had longer length of stay, 25-hydroxyvitamin D deficiency, and lower education level, compared to those with normal ASMI (all P ≤ 0.0472). In the multiple linear regression model, age (coefficient, b = –0.013 kg/m 2; P < 0.001), gender (female: b = –0.963 kg/m 2; P < 0.001), calf circumference (b = 0.042 kg/m 2; P < 0.001), bone mass (b = 0.593 kg/m 2; P < 0.001), BMI (b = 0.129 kg/m 2; P < 0.001), and Physical Activity Scale for the Elderly (PASE) score (b = 0.001 kg/m 2; P = 0.048) were associated with ASMI. ConclusionsCommunity-dwelling older people at risk of malnutrition had four-fold greater risk of having low ASMI as compared to nourished counterparts. Increasing age was associated with lower ASMI, whereas calf circumference, bone mass, BMI, PASE score, and being male were positively assoc

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Correlation Analysis with Experimental Procedures and Peak Structures in Xps Spectral Round-Robin Tests on Mno Powder Sample

SSRN

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SSRN 2022年

作者： Murakami, Ryo Harada, Yoshitomo Sonobayashi, Yutaka Oji, Hiroshi Makino, Hisao Tanaka, Hiromi Taguchi, Hideyuki Sakamoto, Takanori Morita, Haruka Wakamori, Akihiko Kibe, Naoko Nishida, Shinsuke Nagata, Kenji Shinotsuka, Hiroshi Shouno, Hayaru Yoshikawa, Hideki The University of Electro-Communications Graduate School of Informatics and Engineering Chofu182-8585 Japan National Institute for Materials Science Research and Services Division of Materials Data and Integrated System Ibaraki Tsukuba305-0044 Japan Kyoto University Department of Materials Science and Engineering Kyoto606-8501 Japan Nagoya University Synchrotron radiation Research center Nagoya464-8603 Japan Kochi University of Technology School of Systems Engineering Japan National Institute of Technology Yonago College Department of Electrical and Computer Engineering Japan Nihon Parkerizing Co. Ltd Central Research Laboratories Kanagawa 254-0012 Japan JX Nippon Mining & Metals Corporation Technology Development Center Japan Melco Semiconductor Engineering Corporation Chemical Analysis & Evaluation Engineering Dept. Fukuoka Japan Kobelco Welding TechnoSolutions Co. Technical Solution Dept. Ltd Kanagawa 251-8551 Japan Furukawa Electric Co. Ltd Analysis Technology Center Sustainable Technology Laboratorie Kanagawa 220-0073 Japan

Spectral measurements provide valuable information on the electronic states and crystal structures of materials. In particular, X-ray photoelectron spectroscopy (XPS) can facilitate analysis of the chemical bond state of material surfaces. In the analysis of XPS spectra, the spectrum to be measured is typically compared to a reference spectrum measured on a known single-phase sample. Therefore, establishing a reference spectral database is imperative. In this study, round-robin tests of XPS spectra are performed with the aim of obtaining recommended XPS reference spectra and experimental procedures, including preprocessing. Determining the variations in peak structures between instrument- and sample-derived spectral shapes, and quantitatively discussing them in round-robin tests of XPS spectra are challenging. Therefore, an analysis method that automatically determines the above mentioned variations and extracts the samplederived common spectral structures is developed. This study presents a new approach to the quantitative analysis of round-robin tests of XPS spectra. The required common © 2022, The Authors. All rights reserved.

关键词： X ray photoelectron spectroscopy

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FogFlow: Orchestrating IoT services over cloud and edges

NEC Technical Journal

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NEC Technical Journal 2018年第1期13卷 48-53页

作者： Cheng, Bin Kovacs, Ernoe Kitazawa, Atsushi Terasawa, Kazuyuki Hada, Tooru Takeuchi, Mamoru NEC Laboratories Europe Germany IoT Platform Solutions Division NEC Solution Innovators Japan Future City Development Division United States

Nowadays IoT infrastructure providers for smart city, smart industry, and connected vehicles are facing huge complexity and cost to manage their geo-distributed infrastructures for supporting various IoT services, especially those that require low latency. FogFlow is a distributed execution framework to dynamically orchestrate IoT services over cloud and edges, in order to reduce internal bandwidth consumption and offer low latency. By providing automated and optimized IoT service orchestration with high scalability and reliability, FogFlow helps infrastructure providers to largely reduce their operation cost. FogFlow also provides a data-centric programming model and a development tool chain for service developers and system integrators to quickly realize IoT services with low development cost and fast time-to-market. This has been proven in the labs as well as in real smart city projects done by NEC solution Innovators. © 2018 NEC Corporation.

关键词： Internet of things

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Magnetic Recording: Magnetic‐Pole Flip by Millimeter Wave (Adv. Mater. 48/2020)

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Advanced Materials 2020年第48期32卷 2070361-2070361页

作者： Shin‐ichi Ohkoshi Marie Yoshikiyo Kenta Imoto Kosuke Nakagawa Asuka Namai Hiroko Tokoro Yuji Yahagi Kyohei Takeuchi Fangda Jia Seiji Miyashita Makoto Nakajima Hongsong Qiu Kosaku Kato Takehiro Yamaoka Masashi Shirata Kenji Naoi Koichi Yagishita Hiroaki Doshita Department of Chemistry School of Science The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐0033 Japan Department of Materials Science Faculty of Pure and Applied Sciences University of Tsukuba 1‐1‐1 Tennodai Tsukuba Ibaraki 305–8577 Japan Department of Physics School of Science The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐0033 Japan Institute of Laser Engineering Osaka University 2‐6 Yamadaoka Suita Osaka 565–0871 Japan Analysis Systems Solution Development Dept. Metrology and Analysis Systems Product Div. Hitachi High‐Tech Corporation 3‐2‐1 Sakado Takatsu‐ku Kawasaki Kanagawa 213‐0012 Japan Recording Media Research & Development Laboratories FUJIFILM Corporation 12‐1 Ohgi‐cho 2‐Chome Odawara‐shi Kanagawa 250‐0001 Japan

In article number 2004897, Shin‐ichi Ohkoshi and co‐workers propose a new magnetic recording methodology, “focused‐millimeter‐wave‐assisted magnetic recording (F‐MIMR)”, to drastically increase the recording density of magnetic tapes. Demonstrations are performed using magnetic films based on a series of epsilon iron oxide, ε‐Fe2O3. Irradiation of the focused millimeter wave generated from terahertz (THz) light flips the magnetic pole direction, leading to a breakthrough technology for high‐density magnetic recordings.

关键词： epsilon iron oxide magnetic recording magnetization reversal millimeter waves nanoparticles

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Propagation analysis of crevice corrosion on SUS304 stainless steel under potentiostatic condition in artificial sea water

Zairyo to Kankyo/ Corrosion Engineering

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Zairyo to Kankyo/ Corrosion Engineering 2015年第2期64卷 51-59页

作者： Matsuhashi, Ryo Matsuoka, Kazumi Nose, Kiyomi Kajimura, Haruhiko Steel Research Laboratories Nippon Steel and Sumitomo Metal Corporation Japan Material Performance Solution Center Nippon Steel and Sumikin Technology Japan Reseach and Development Center Nippon Steel and Sumikin Stainless Steel Corporation Japan 20-1 Shintomi Futtsu239-8511 Japan 3434 Oazashimada Hikari743-8550 Japan

The propagation behavior of crevice corrosion on SUS304 was investigated by the new crevice corrosion test apparatus. The corrosion area and corrosion current in glass/metal crevice can be measured at the same time by this apparatus. The specimen was polished just before the crevice corrosion test under the constant potential condition, E=299 mV, 399 mV and 499 mV (SHE), in artificial seawater at room temperature. Some important results were obtained. The crevice corrosion initiation time tVI determined by the visual observation was coincident with tINCU determined by the current density change. The crevice corrosion area, ACREV, increased exponentially with time from the crevice corrosion initiation time. However, the increasing rate of the crevice corrosion volume, VCREV, changed at the time, tR, which crevice corrosion reached at the edge of crevice. We divided the corrosion process into two stages, Region I and Region II. Region I and Region II are defined as the time region before and after tR respectively. The increasing rate of VCREV in Region II was larger than that in Region I. However, the increasing rate of ACREV in Region I was slightly larger than that in Region II. © 2015 Japan Society of Corrosion Engineering. All rights reserved.

关键词： Crevice corrosion

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ITU-T FG-M2M Meeting Report

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NTT Technical Review 2014年第7期12卷 43-47页

作者： Ishigure, Yasuo Medical and Healthcare Information Systems Development Project Public ICT Solution Project NTT Secure Platform Laboratories Japan

The ITU-T (International Telecommunication Union-Telecommunication Standardization Sector) Focus Group on Machine-to-Machine Service Layer (FG-M2M) was established at the January 2012 meeting of the Telecommunications Standardization Advisory Group to study applications of M2M technology in the e-health field. The group held 12 meetings between then and December 2013. This article reports on the results of the FG-M2M meetings. © 2014 Nippon Telegraph and Telephone Corp.. All rights reserved.

关键词： eHealth

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Thermal management system with heatpipe for in vehicle electric devices

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Furukawa Review 2013年第44期 20-25页

作者： Hirasawa, Takeshi Ikeda, Masami Sasaki, Chiyoshi Automotive System and Device Laboratories Research and Development Division Germany Thermal Management Solution and Product Div Germany

A variety of electrical devices such as a lithium ion battery (hereinafter LIB) and etc. are implemented in the next generation vehicles such as the plug-in hybrid vehicle (hereinafter PHV), electric vehicle (hereinafter EV) and etc. for which we are expecting an important growth in the future. This paper describes the results of examining the benefits obtained by applying the heatpipe system which has an excellent heat uniformity to the temperature management system for invehicle electronic devices to be mounted on these vehicles. It was found that with respect to the thermal management system for LIB, the heatpipe system has an excellent performance for the cooling and for the temperature uniformity. Although the volume is reduced by 88% in comparison to the air cooling system, if the 20 cells with ambient temperature of 35°C and a heat amount of 3 W is cooled by the cooling source of 35°C, the heatpipe system is able to suppress the highest cell temperature to 38.1°C and the temperature difference between cells to 1.3°C. Thus the excellent cooling performance and the temperature uniformity of the heatpipe system were confirmed. This paper also discusses the applicability of the heatpipe system to the cooling for other electric devices such as automotive inverters etc.

关键词： Plug-in hybrid vehicles

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IC chip level low noise technology for high speed and high quality telecommunication systems

IC chip level low noise technology for high speed and high q...

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Asia-Pacific Conference on Microwave

作者： Masahiro Yamaguchi Satoshi Tanaka Yasushi Endo Makoto Nagata Hiroaki Matsui Mizuki Iwanami Kenta Tsukamoto Department of Electrical Engineering Tohoku University Sendai Japan Graduate School of System Informatics Kobe University Japan General Purpose RF Solution Development Dept. Renesas Electronics Co. Kawasaki Japan Green Platform Research Laboratories NEC Co. Kawasaki Japan

Single chip integration of RF frontend and digital backend circuits is an obvious solution to accommodate high sensitivity and selectivity of analogue RF chains, and the high speed and large data bandwidth digital processing in an RF IC for the coming wireless communication systems including long-term evolution-advanced (LTE-A) system. This paper firstly emphasizes the necessity to suppress intra electromagnetic coupling from digital to RF circuits within the bandwidth of wireless channels. Our approach to suppress IC chip level RF noise coupling and to estimate their impact on system-level performance of wireless communication lead to major achievements on; (a)development of an in-system diagnosis platform of RF ICs consisting of a silicon emulator of on-chip interferers and a system-level RF performance simulator, (b)measurement-based substrate noise coupling analysis, measurement-based magnetic air coupling analysis, (c)an unique ferromagnetic on-chip countermeasure, and (d)board level coupling analysis in LTE receiver communication band. Their impacts on future telecommunication systems are estimated to conclude this work.

关键词： Radio frequency Decision support systems Silicon Electrical engineering Informatics laboratories Receivers

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