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Metallic Contaminant Detection using a High-Temperature Superconducting Quantum Interference Devices Gradiometer

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Chinese Physics Letters 2010年第8期27卷 253-255页

作者： Saburo Tanaka Tomohiro Akai Makoto Takemoto Yoshimi Hatsukade Takeyoshi Ohtani Yoshio ikeda Shuichi Suzuki Toyohashi University of Technology 1-1 Hibarigaoka Tempaku-cho Toyohashi Aichi 441-8580 Japan Advance Food Technology Co. Ltd. Toyohashi Aichi 441-8113 Japan

We develop magnetic metallic contaminant detectors using high-temperature superconducting quantum interference devices （HTS-SQUIDs） for industrial products. Finding ultra-small metallic contaminants is an important issue for manufacturers producing commercial products such as lithium ion batteries. If such contaminants cause damages, the manufacturer of the product suffers a big financial loss due to having to recall the faulty products. Previously, we described a system for finding such ultra-smafi particles in food. In this study, we describe further developments of the system, for the reduction of the effect of the remnant field of the products, and we test the parallel magnetization of the products to generate the remnant field only at both ends of the products. In addition, we use an SQUID gradiometer in place of the magnetometer to reduce the edge effect by measuring the magnetic field gradient. We test the performances of the system and find that tiny iron particles as small as 50 × 50 μm^2 on the electrode of a lithium ion battery could be clearly detected. This detection level is difficult to achieve when using other methods.

关键词： Uses Metals Squids Production Productivity Products Ions Lithium Contamination Pollutants

By using either endogenous or transplanted stem cells,which could you prefer for neural regeneration？

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Neural Regeneration Research 2018年第10期13卷 1731-1732页

作者： satoru matsuda yukie nakagawa kumi amano yuka ikeda ai tsuji yasuko kitagishi department of food science and nutrition nara women's University，Kita—Uoya，Nishimachi，Nara，Iapa

Neural regeneration by stem cells transplantation：Tissue regeneration and homeostasis are principally dependent on tissue stem cells which possess abilities of self-renewal and differentiation into multidirectional specialized cell *** general,stem cells are critical for normal tissue renewal as well as repair after tissue *** example,mesenchymal stromal cells and endothelial progenitor cells identified in bone marrow could.

关键词： SPINAL-CORD-INJURY ISCHEMIA

Three cases of Solitary Peutz-Jeghers-type hamartomatous polyp in the duodenum

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World Journal of Gastroenterology 2008年第6期14卷 944-947页

作者： Seiyuu Suzuki Shoji Hirasaki Fusao ikeda Eiichiro Yumoto Hiromichi Yamane Minoru Matsubara Department of Internal Medicine Sumitomo Besshi Hospital Niihama Japan

A solitary Peutz-Jeghers-type hamartomatous polyp in the duodenum is rare, and few reports have described its characteristic endoscopic features. We describe three cases of solitary Peutz-Jeghers-type hamartomatous polyp and their endoscopic findings in detail. The polyp in all of our three cases showed an irregularly lobular or nodular surface, whereas adenomas often show a regularly nodular or granular surface. The color of the polyp was whitish in all of our cases. In the present cases, close observation by endoscopy revealed that the solitary Peutz-Jeghers-type hamartomatous polyps looked whitish because of the presence of diffusely scattered white spots on the surface of the polyps. Duodenal polyps that exhibit the aforementioned endoscopic characteristics may be diagnosed as Peutz-Jeghers-type hamartomatous polyps and treated by polypectomy because of the malignant potential.

关键词： Duodenal polyp Hamartoma Peutz-Jeghers polyp

CRACK PROPAGATION BEHAVIOR AND LIFETIME PREDICTION IN ALUMINA AND ZIRCONIA

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Chinese Journal of Mechanical Engineering 2002年第3期15卷 284-288页

作者： Kiyohiko ikeda Koichi Kaizu School of Mechanical Engineering Shanghai Jiaotong University 上海 200030

The lifetime prediction of ceramics is discussed on the basis of therelationship between stress intensity factor K_1 and crack velocity nu. The effects of waterenvironment, the cyclic loading and microstructure of material on K_1-nu characteristics are studiedby carrying out the crack growth tests by the double torsion (DT) method under the static andcyclic loading in both environments of air and water for alumina and zirconia. K_1-nucharacteristics determined by the double torsion method are used to predict time-to-failure underthe cyclic loading of alumina and zirconia ceramics. The predictions agree qualitatively with theexperimental results.

关键词： Alumina Zirconia Fatigue Crack growth Lifetime prediction

Promising role of D-amino acids in irritable bowel syndrome

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World Journal of Gastroenterology 2022年第31期28卷 4471-4474页

作者： Yuka ikeda Kurumi Taniguchi Haruka Sawamura Ai Tsuji Satoru Matsuda Department of Food Science and Nutrition Nara Women's UniversityNara 630-8506Japan

Irritable bowel syndrome(IBS)is an important health care *** in the microbiota of the gut-brain axis may be linked to the pathophysiology of *** dietary intake could contribute to produce various metabolites including Damino acids by the fermentation by the gut microbiota.D-amino acids are the enantiomeric counterparts of L-amino acids,in general,which could play key roles in cellular physiological processes against various oxidative ***,the presence of D-amino acids has been shown to be linked to the protection of several organs in the *** particular,the gut microbiota could play significant roles in the stability of emotion via the action of D-amino ***,we would like to shed light on the roles of D-amino acids,which could be used for the treatment of IBS.

关键词： Irritable bowel syndrome D-amino acid Gut microbiota Colitis Probiotics Fecal microbiota transplantation

Information geometry in neural spike sequences

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Frontiers of Electrical and Electronic Engineering in China 2011年第1期6卷 146-150页

作者： Kazushi ikeda Daisuke KOMAZAWA Hiroyuki FUNAYA Nara Institute of Science and Technology Nara 630-0192Japan Kyoto University Kyoto 606-8501Japan

An information geometrical method is developed for characterizing or classifying neurons in cortical areas whose spike rates fluctuate in *** interspike intervals(ISIs)of a spike sequence of a neuron is modeled as a gamma process with a time-variant spike rate,a fixed shape parameter and a fixed absolute refractory *** formulate the problem of estimating the fixed parameters as semiparametric estimation and apply an information geometrical method to derive the optimal estimators from a statistical viewpoint.

关键词： information geometry neural spikes semiparametric estimation interspike intervals(ISIs)

Ni/Pd-based ohmic contacts to p-GaN through p-InGaN/p^(+)-GaN contacting layers

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Journal of Semiconductors 2022年第9期43卷 81-86页

作者： Minglong Zhang Masao ikeda Siyi Huang Jianping Liu Jianjun Zhu Shuming Zhang Hui Yang School of Nano-Tech and Nano-Bionics University of Science and Technology of ChinaHefei 230026China Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of SciencesSuzhou 215123China

Specific contact resistance to p-GaN was measured for various structures of Ni/Pd-based metals and thin(20-30 nm thick)p-InGaN/p^(+)-GaN contacting *** effects of surface chemical treatment and annealing temperature were *** optimal annealing temperature was determined to be 550°C,above which the sheet resistance of the samples de-graded considerably,suggesting that undesirable alloying had ***-containing metal showed~35%lower com-pared to that of single *** thin(2-3.5 nm thick)p-InGaN contacting layers grown on 20-25 nm thick p^(+)-GaN layers exhib-ited one to two orders of magnitude smaller values of compared to that of p^(+)-GaN without *** current density de-pendence of,which is indicative of nonlinearity in current-voltage relation,was also *** lowest achieved through this study was 4.9×10^(-5)Ω·cm^(2)@J=3.4 kA/cm^(2).

关键词： GaN ohmic contact specific contact resistance

Quantitative index calculated by ^(99m)Tc-GSA scintigraphy

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Chinese Journal of Cancer Research 2014年第6期26卷 641-643页

作者： Morikatsu Yoshida Shinya Shiraishi Noriko Tsuda Fumi Sakamoto seiji Tomiguchi Yasuyuki Yamashita Department of Diagnostic Radiology Graduate School of Life Sciences Kumamoto University Department of Diagnostic Medical Imaging School of Health Faculty of Life Sciences Kumamoto University

99mTc-galactosyl human serum albumin（GSA） scintigraphy is useful to evaluate hepatic function and hepatic functional reserve. A reliable SPECT and CT integrated system is now commercially available. Using this system, we can obtain 99mTc-GSA SPECT/CT fused imaging with a small registration error. Therefore, the 99mTc-GSA scintigraphy techniques prove more useful in clinical practice than have been previously reported. In the latest Annals of Surgical Oncology on Oct 2014, the uptake index（UI） values calculated from 99mTc-GSA scintigraphy are reported to be useful for predicting the functional reserve of the future remnant liver. In this paper, we describe the usefulness of 99mTc-GSA scintigraphy as well as some cautions that are necessary as regards using the system.

关键词： 99mTc-GSA scintigraphy SPECT/CT uptake index(UI)

一亚热带蜚蠊(Periplaneta japanna)两地理种群间相异的光周期反应模式(英文)

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生态学报 2007年第9期27卷 3687-3693页

作者：朱道弘 seiji Tanaka 中南林业科技大学资源与环境学院湖南长沙410004 Laboratory of Insect Life Cycles and Physiology Division of Insect and Animal SciencesIndependent Administrative InstitutionTsukubaJapan

为弄清光周期对一种亚热带蜚蠊(Periplaneta japanna)若虫发育的控制机理,检测了光周期对冲绳(26°N)和八丈岛(33°N)两个地理种群若虫发育的影响。结果表明,光周期显著影响两地理种群的若虫发育,然而,冲绳和八丈岛种群间显示不同的光... 详细信息

为弄清光周期对一种亚热带蜚蠊(Periplaneta japanna)若虫发育的控制机理,检测了光周期对冲绳(26°N)和八丈岛(33°N)两个地理种群若虫发育的影响。结果表明,光周期显著影响两地理种群的若虫发育,然而,冲绳和八丈岛种群间显示不同的光周期反应模式。冲绳种群在长日条件下(LD16∶8h)若虫发育显著快于中间日长(LD14∶10h)和短日条件下(LD12∶12h)的若虫发育,孵化后60d或120d将若虫自LD16∶8h向LD12∶12h转移,若虫发育受到抑制,而自LD12∶12h向LD16∶8h转移,则促进若虫发育。八丈岛种群的若虫在短日条件下发育最快,其次是中间日长,长日条件下若虫发育最慢,孵化后60d或120d将若虫自LD16∶8h向LD12∶12h转移抑制若虫发育,反方向转移的若虫快速发育。两地理种群间不同的光周期反应模式可以认为是趋异进化的结果。

关键词：蜚蠊光周期地理变异滞育亚热带 Periplaneta japanna