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Effects of Adjusting Backpack Shoulder Stabilizers on Psychological Responses and Autonomic Nerve Activity in Hiking

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Health 2025年第1期17卷 1-12页

作者： Hisashi Mitsuishi Mikitoshi Tabuchi Department of Health and Sports Science Kyoto University of Advanced Science Kameoka Japan Sankousya Kobe Japan Naturalstyle Inc. Ashiya Japan Kojitusanso co. Ltd. Kobe Japan

Purpose: There have been many studies on the effects of different types of backpacks on posture from a biomechanical perspective and on the center of gravity. co.sidering the effects of autonomic nervous system activity and mood associated with backpacks in mountaineering and hiking, research is also needed from a psychological perspective. In this study, the effects of adjusting the backpack shoulder stabilizer were preliminarily tested in terms of subjective fatigue and changes in autonomic nervous activity after hiking. Methods: The experimental 15 healthy participants hiked the mountain under two co.ditions: 1) without adjusting the stabilizer, a feature of the backpack (NAH co.dition), and 2) with the stabilizer adjusted (AH co.dition). First, all participants hiked the mountain in the NAH co.dition, and after a 30-minute break, they began the hike in the AH co.dition after co.firming that a) their heart rate had reco.ered and b) they were in good physical co.dition. Results: HR was significantly lower after each hiking session than during the session. RMSSD was significantly lower pre-AH and post-AH than the NAH co.dition, but there was no significant difference between the NAH co.dition and either post-NAH or post-AH. Additionally, RMSSD was significantly lower in the AH co.dition than pre-AH or post-AH. The shoulders and back were significantly more burdened in the NAH co.dition than in the AH co.dition. The pleasure level was significantly higher in the AH co.dition than in the NAH co.dition. co.clusion: The results showed that also adjusting the position of the waist belt when adjusting the shoulder stabilizer, which is mainly used for the neck and shoulders, has a significant positive effect on the subjective burden on the upper body and parasympathetic nervous system activity after hiking.

关键词： Shoulder Stabilizer Autonomic Nervous System RMSSD Pleasure Level

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Laser-induced phase segregation of inorganic halide perovskite alloy nanowires for optical switch

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Nano Research 2025年第2期18卷 878-886页

作者： Qihang Lv Xia Shen Xuyang Li Jianzhe Liu Zhaohui Shan Liantuan Xiao Pengfei Guo Johnny CHo co.lege of Physics and Optoelectronics Taiyuan University of TechnologyTaiyuan 030024China Huangshan Bright Semico.ductor co. Ltd.Huangshan 245021China Department of Materials Science and Engineering City University of Hong KongKowloonHong Kong 999077China Institute for Materials Chemistry and Engineering Kyushu UniversityFukuoka 819-0395Japan

Inorganic perovskitenanostructures have attracted co.siderable attention for their tunable band gaps and excellent optoelectronic *** is inevitable that phase segregation of halide perovskite usually occurs in mixed-halide perovskites under a focused laser llumination,which caused by photo-induced halide-ion ***,we reported an uniform perovskite alloy nanowires via a chemical vapor deposition(CvD)*** characterization reveals that these perovskite nanowires have independent linear morphology_with high-quality ***-photoluminescence(PL)spectra exhibit that these nanowire structures show a dual-wavelength emissions at 690 and 570 nm,***,time-dependent PL intensity of the emission peak at 690 nm increased by the decrease of the emission peak at 570 nm under a focused laser llumination,indicating the formation of phase segregation at the excited ***,based on these as-grown halide perovskite CsPbBr2.52lo.48 nanowires,a reasonably optical switch is designed and *** optical switch may have potential applications in timed blasting system and time-delay circuit in the future.

关键词： perovskite alloy nanowires phase segregation dual-wavelength emission optical switch nanophotonics

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Accelerating homogenization kinetics and enhancing hot-workability of as-cast nickel-based superalloy via prior hot-deformation

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Journal of Iron and Steel Research International 2025年第1期32卷 215-226页

作者： Jia-jun Chen Yang Zhou Hao-ran Han Xian-guang Zhang Goro Miyamoto Ping-mei Tang Dong-ping Xiao Jian-hui Fu Peng Shi Yi-wu Pei Jian Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China School of Metallurgical and Eco.ogical Engineering University of Science and Technology BeijingBeijing 100083China Chengdu Advanced Metal Materials Industrial Technology Institute co. Ltd.Chengdu 610300SichuanChina Institute for Materials Research Tohoku UniversitySendai 980-8577Aoba-KuJapan

Enhancing homogenization efficiency and hot-workability is the key issue for wrought superalloys in the industry.A novel approach for simultaneous accelerating the homogenization kinetics and improving hot-workability via a simple way of prior hot-deformation was proposed,which was not widely accepted for wrought *** homogenization efficiency is increased by 40%-70%via performing 10%-20%prior *** theoretical and experimental analyses revealed that the increment in homogenization efficiency is mainly attributed to the decrease in interdendritic-segregation spacing,and thus the necessary diffusion distance,rather than that of *** addition,dynamic and static recrystallizations occurred during the prior hot-deformation and diffusion-annealing processes,and the grains were significantly refined even after the ***,the size of the precipitates was refined as *** enhanced the hot-workability of the homogenized ingot for the subsequent co.ging process.

关键词： Nickel-based superalloy Homogenization kinetics Prior hot-deformation Grain size Hot workability

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Electromechanically reco.figurable plasmonic photodetector with a distinct shift in resonant wavelength

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Microsystems & Nanoengineering 2023年第2期9卷 219-226页

作者： Masaaki Oshita Shiro Saito Tetsuo Kan Graduate School of Informatics and Engineering The University of Electro-Communications1-5-1ChofugaokaChofu-cityTokyo 182-8585Japan imra japan co. LTD2-36Hachiken-choKariyaAichi 448-8650Japan

Plasmonic photodetectors have received increasing attention because their detection properties can be designed by tailoring their metal structures on surfaces without using any additional *** of the plasmonic resonant state in a photodetector is relevant for various applications,including investigating in situ adaptive detection property changes,depending on the situation,and performing single-pixel spectrosco.y in geometrically limited ***,the spectral responsivity change with co.ventional reco.figuration methods is relatively ***,we propose a plasmonic photodetector that reco.figures its spectral responsivity with electromechanical deformation instead of bias *** photodetector co.sists of a gold plasmonic grating formed on an n-type silico. cantilever,and the spectral responsivity is reco.figured by electromechanically scanning at an incident angle to the grating on the *** photodetector exhibits peak shifts in spectral responsivity in a wavelength range from 1250 to 1310 nm after electromechanical ***,for potential future applications,we demonstrate near-infrared spectrosco.y using the *** photodetector has the potential to be adopted as a near-infrared spectrometer in industrial silico. imaging systems because its structure enables subbandgap photodetection on silico. by a Schottky junction.

关键词： tuning reco.figurable resonant

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The New Plating Process on Plastics

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材料热处理学报 2004年第05B期25卷 1119-1121页

作者： Makoto Imamura Jun Okada Kazuya Satoh Okuno Chemical Industries co. Ltd JapanOkuno Chemical Industries Co. Ltd JapanOkuno Chemical Industries Co. Ltd Japan

This process does not use general electroless plating solution co.taining formaldehyde(carcinogen) and phosphate(the object of waste water regulation). Furthermore, we succeeded in developing a new electroless co.per plating solution which is usable semi-permanently by using the special reducing agent. The electroless deposition forms a very thin co.ductive film on substrate. Therefore, it can prevent some appearance defects (e.g. pits, pin-holes, laminations and inclusions) that occur in the co.ventional ones. In addition, it is possible to eliminate electroplating of co.per from the process by applying the exclusive nickel solution in electroplating. Therefore, the obtained metal parts can be recycled as high quality stainless steel. Given this co.per electroplating-free process, 25 u m-thick nickel deposition at the stage of electroplating, at least, enables the metal layers to show properties as versatile as those of the co.ventional(its total thickness is 25 n m in the co.parative co.ventional process).

关键词：电镀再循环调磷调氮合成树脂

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co.ling Curve's Effect on Hardening Behavior of Steel

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材料热处理学报 2004年第5期25卷 462-464页

作者： Kazuto Fukuhara Shigeru Asada Yoshihiro Tomita Syusaku Maeda Nippon Grease co. Ltd. Osaka JapanNippon Grease Co. Ltd. Osaka JapanNippon Grease Co. Ltd. Osaka JapanNippon Grease Co. Ltd. Osaka Japan

Quenching Oils are co.prised mostly of mineral oil as major co.ponent, but mineral oil alone result in lower co.ling performance. Therefore, various additives are formulated as required for each particular case. co.ling curves of mineral oil as determined by JIS method can be divided into three stages, vapor film stage, boiling stage and co.vection stage. And there are many types of additives used for quenching oil, one effective to shorten vapor film stage and another to shift boiling stage toward lower temperature side. As rapid quenching required temperature range for particular steel varies pending on its shape of CCT curve"1, it is possible to provide higher quench hardening performance using quenching oil formulated of adequate additives.

关键词：淬火油冷却效果硬化性能钢

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Standardization of New Sliver Probe for co.ling Power Test of Polymer Quenchant

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材料热处理学报 2004年第5期25卷 447-452页

作者： Hideo YOKOTA Katsumi ICHITANI Kazuyoshi YAMAMOTO Hiroyuki IKUMI Yasufumi SUGIURA Michiharu NARAZAKI Nippon Oil co.poration Yokohama JapanIdemitsu Kosan Co. Ltd. Chiba JapanDaido Chemical Industry Co. Ltd. Osaka JapanSanshin Kagaku Kogyo Co. Ltd. Tokyo JapanNippon Grease Co. Ltd. Osaka JapanUtsunomiya University Utsunomiya Japan

Technical co.mittee for japanese industrial standard of heat treating oils has studied on the new method for testing co.ling power of aqueous quenchants. This method employed the co.ling curve test of a new sliver rod probe, which has a metal-sheathed thermoco.ple at its geometrical center. The experimental study has clarified that this probe has the higher sensitivity and excellent durability. In order to standardize this probe for co.ling power test of aqueous quenchants, the repeatability and reproducibility of test results etc. have been studied. D.O.P. (Di-2-ethylthexyl Phthalate) was used as reference quenching fluid for initial calibration and for periodic calibration verification of the probe and system. In addition, 10% brine was used to check the response capability of the probe and system to the sudden change of temperature. These procedures are established acco.ding to the experimental investigation. This new test method is going to be built in the revised version of JIS K 2242 "Heat treating oils" as the co.ling power test method for aqueous quenchants.

关键词：聚合物淬火剂冷却动力试验冷却曲线银探测器

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Accelerated Gas Carburizing (URX Gas Carburizing)

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材料热处理学报 2004年第5期25卷 378-381页

作者： Yoshikazu Shimosato Mamoru Kamitani Hiroyuki Nakatsu Chugai Ro co. Ltd. Osaka JapanChugai Ro Co. Ltd. Osaka JapanChugai Ro Co. Ltd. Osaka Japan

URX gas Carburizing is an accelerated gas Carburizing method with 50% co.+ 50% H2 gas which co.es from CFLt gas + co. gas. By using this gas co.position, the Carburizing reaction rate increases to the maximum and the co.trollability of carbon potential improves. A carbon mass flow rate is the product of the Carburizing reaction rate multiplied by the difference of carbon percent between carbon potential of the gas and the carbon co.tent of the surface of treated steel parts. We have obtained excellent results from the experimental tests at our laboratory as mentioned bellow. 1) Carburizing time can be shortened by 40% for 0.5 - 0.9 mm effective case depth. 2) Uniform Carburizing case depth 3) Less internal oxidation with the same case depth. We have already developed the new roller hearth type co.tinuous Carburizing furnace and the new URX gas generator .

关键词：气体渗碳内部氧化质量流速反应速率系数

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Development of New Sliver Probe for co.ling Power Test of Polymer Quenchants

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材料热处理学报 2004年第5期25卷 437-442页

作者： Michiharu NARAZAKI Mamoru TAJIMA Shigeru ASADA Katsumi ICHITANI Hideo YOKOTA Mitsugu TANAKA Youichi WATANABE Utsunomiya University Utsunomiya JapanKanagawa University Yokohama JapanNippon Grease Co. Ltd. Osaka JapanIdemitsu Kosan Co. Ltd. Chiba JapanNippon Oil Corporation Yokohama JapanNissho Engineering Co. Ltd. Kobe JapanNissan Motor Co. Ltd. Yokohama Japan

Working group on co.ling power test of quenchants of japanese Heat Treatment Society has studied on the new method for testing co.ling power of aqueous quenchants. This method employed the co.ling curve test of a new sliver rod probe, which has a metal-sheathed thermoco.ple at its geometrical center. The experimental study has clarified that the new silver probe has more excellent durability than the JIS silver probe employed for co.ling power test of heat treating oils (JIS K 2242) and an aluminum alloy probe. Good repeatability and reproducibility of the co.ling curves during polymer quenching have been co.firmed. This new method is useful especially for co.ling power test of aqueous quenchants used for solution heat treatment of aluminum alloys. This new silver rod probe is expected to be adopted for the revised version of JIS K 2242 as the co.ling power test method for aqueous quenchants.

关键词：聚合物淬火剂动力试验冷却曲线银探测器

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Synthesis and characteristics of transparent Gd_(2)O_(3)ceramics with cubic structure

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Journal of Advanced Ceramics 2024年第4期13卷 463-468页

作者： Akio Ikesue Yan Lin Aung World Lab co. Nagoya456-8587Japan

Transparent Gd_(2)O_(3)ceramics with a cubic crystal structure were successfully synthesized for the first *** Gd_(2)O_(3)ceramics subjected to hot isostatic press(HIP)at 1070℃co.sisted of uniform grains of 2-3μm,and only a few residual pores co.ld be detected inside the materials.X-ray diffraction(XRD)shows that the obtained polycrystalline materials have a cubic crystal structure,and the transmission polarized light observation shows that there is no birefringence inside the materials,indicating inherent optical properties of the cubic crystal *** optical absorption edge is 640 nm(optical band gap:2.1 eV),and the transmittance in the visible to near-infrared region is 72%,which is close to the theoretical transmittance calculated from Fresnel *** co.stant of this material is almost wavelength-independent,and it is diamagnetic since it has the opposite polarity to that of co.mon paramagnetic materials.

关键词： gadolinium oxide cubic hot isostatic press(HiP) diamagnetic Verdet co.stant

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