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Applied Mathematics 2015年第8期6卷 1389-1406页

作者： Shoji Itoh masaaki Sugihara Division of Science School of Science and Engineering Tokyo Denki University Saitama Japan Department of Physics and Mathematics College of Science and Engineering Aoyama Gakuin University Kanagawa Japan

In this paper, we propose an improved preconditioned algorithm for the conjugate gradient squared method (improved PCGS) for the solution of linear equations. Further, the logical structures underlying the formation of this preconditioned algorithm are demonstrated via a number of theorems. This improved PCGS algorithm retains some mathematical properties that are associated with the CGS derivation from the bi-conjugate gradient method under a non-preconditioned system. A series of numerical comparisons with the conventional PCGS illustrate the enhanced effectiveness of our improved scheme with a variety of preconditioners. This logical structure underlying the formation of the improved PCGS brings a spillover effect from various bi-Lanczos-type algorithms with minimal residual operations, because these algorithms were constructed by adopting the idea behind the derivation of CGS. These bi-Lanczos-type algorithms are very important because they are often adopted to solve the systems of linear equations that arise from large-scale numerical simulations.

关键词： Linear Systems Krylov Subspace Method Bi-Lanczos Algorithm Preconditioned System PCGS

Picosecond burst pulse machining with temporal energy modulation

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Chinese Optics Letters 2020年第12期18卷 87-91页

作者： Akinao Nakamura Tomoki Mizuta Yasuhiko Shimotsuma masaaki Sakakura Tomohito Otobe Masahiro Shimizu Kiyotaka Miura Department of Material Chemistry Graduate School of Engineering Kyoto University National Institutes for Quantum and Radiological Science and Technology Kansai Photon Science Institute

Suppression of stress and crack generation during picosecond laser processing in transparent brittle materials such as glass was successfully demonstrated by a picosecond laser pulse with temporal energy modulation. The origin of deterioration in processing accuracy could be interpreted in terms of the discontinuous movement of plasma in the vicinity of the focus. To reveal the effectiveness of the temporal energy modulation for smooth machining, such plasma motion was simulated by the finite-difference time-domain method. Furthermore, photoinduced birefringence was observed using a high-speed polarization camera.

关键词： Burst pulse Energy modulation Material processing Picosecond laser Stress distribution

Gastric adenocarcinoma of the fundic gland(chief cell-predominant type): A review of endoscopic and clinicopathological features

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World Journal of Gastroenterology 2016年第48期22卷 10523-10531页

作者： Masaki Miyazawa Mitsuru Matsuda masaaki Yano Yasumasa Hara Fumitaka Arihara Yosuke Horita Koichiro Matsuda Akito Sakai Yatsugi Noda Department of Internal Medicine Toyama Prefectural Central Hospital

Gastric adenocarcinoma of the fundic gland(chief cellpredominant type, GA-FG-CCP) is a rare variant of welldifferentiated adenocarcinoma, and has been proposed to be a novel disease entity. GA-FG-CCP originates from the gastric mucosa of the fundic gland region without chronic gastritis or intestinal metaplasia. The majority of GA-FG-CCPs exhibit either a submucosal tumor-like superficial elevated shape or a flat shape on macroscopic examination. Narrow-band imaging with endoscopic magnification may reveal a regular or an irregular microvascular pattern, depending on the degree of tumor exposure to the mucosal surface. Pathological analysis of GA-FG-CCPs is characterized by a high frequency of submucosal invasion, rare occurrences of lymphatic and venous invasion, and low-grade malignancy. Detection of diffuse positivity for pepsinogen-I by immunohistochemistry is specific for GA-FG-CCP. Careful endoscopic examination and detailed pathological evaluation are essential for early and accurate diagnosis of GA-FG-CCP. Nearly all GA-FG-CCPs are treated by endoscopic resection due to their small tumor size and low risk of recurrence or metastasis.

关键词： Narrow-band imaging Pepsinogen-I Fundic gland Gastric adenocarcinoma Chief cell

Luminescent Characteristic of Organic Compound-Containing Inorganic Crystal at Room Temperature

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Advances in Chemical Engineering and Science 2015年第4期5卷 441-446页

作者： Norihito Doki masaaki Yokota Department of Chemistry and Bioengineering Faculty of Engineering Iwate University Morioka Japan

The luminescent functional crystal was produced by the organic guest molecules conformation control in the inorganic host crystal matrix. Inorganic host-organic guest crystals were successfully prepared and luminescence spectra were investigated. These crystals had a phosphorescent property in room temperature by 254 nm UV irradiation. In this system, the potassium sulfate host matrix was effectively inhibited the molecular vibration of organic guest molecules by interaction between K+ and π-electrons. In addition, control of the luminescence wavelength (both fluorescence and phosphorescence) was achieved by controlling the structure of organic molecules which were taken in anorganic compound-containing inorganic crystal. Specifically, theorganic compound-containing inorganic crystals with 2-aminobenzenesulfonic acid and 2-naptylamine-1-sulfonic acid as a guest had a phosphorescence band of 455 nm and 510 nm, respectively.

关键词： Phosphorescence Potassium Sulfate 2-Aminobenzenesulfonic Acid

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Read and Play

Design（产品设计） 2006年第8期 26-27页

作者： masaaki Takanashi 李伟（编译）

阅读是充满乐趣的，对于孩子们来说更是这样。随着儿童读物的市场需求的不断扩大。越来越多专门经营儿童读物的书店在中国建立起来，其中不乏优秀的概念和空间设计，在第51期的Frame杂志中就介绍了一间位于北京建外SOHO附近由日本设计师... 详细信息

阅读是充满乐趣的，对于孩子们来说更是这样。随着儿童读物的市场需求的不断扩大。越来越多专门经营儿童读物的书店在中国建立起来，其中不乏优秀的概念和空间设计，在第51期的Frame杂志中就介绍了一间位于北京建外SOHO附近由日本设计师Keiichiro Sako设计的北京儿童公共书店。

关键词：阅读无界儿童读物空间设计市场需求 SOHO 设计师书店

Prostate-specific antigen screening for prostate cancer： benefits for patients with highly aggressive prostate cancer

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Asian Journal of Andrology 2013年第2期15卷 218-220,I0006页

作者： Hui-Jie Jia Yang Li Jin-Guo Wang Ling Zhang Hai-Tao Zhang Xue-Jian Zhao masaaki Kuwahara Department of Pathophysiology Prostate Diseases Prevention and Treatment Research Centre Norman Bethune College of Medicine Jilin University Changchun 130021 China Laboratory of Transplantation and Immunology Xuzhou Medical College Xuzhou 221000 China Department of Pathology and Laboratory Medicine and Tulane Cancer Center Tulane University School of Medicine New Orleans LA 70112 USA Sendal Reno-Urological Clinic 3-1-32 Minami-yoshinari Sendal 9893204 Japan

The US Preventive Services Task Force （USPSTF） analyzed the benefits and harms of prostate specific antigen （PSA）- based screening for prostate cancer （PCa）. The Grade ＇D＇ recommendation of the USPSTF was based mainly on the Prostate, Lung, Colorectal, and Ovarian （PLCO） study in the United States. That result showed only a small reduction in PCa mortality. However, the data from the International Agency for Research on Cancer （IARC） iUustrated the PCa mortality rate （MR） decreased marked. To avoid the over-diagnosis and over-treatment, the American Cancer Society has changed its strategy and updated its guidance. The USPSTF neglected the aggressive PCa accounted for more then 30% of all PCa. Highly aggressive PCa can be diagnosed by PSA screening combined with Gleason grade. We hope that the USPSTF changes the ＇D＇ recommendation for PSA screening.

关键词： UNITED-STATES RISK-FACTORS MORTALITY COMPLICATIONS POPULATION CHINESE LEAD

Intravesical Non-Alkalinized Lidocaine Instillation for Interstitial Cystitis/Bladder Pain Syndrome Patients

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Open Journal of Urology 2012年第4期2卷 223-226页

作者： Teiichiro Aoyagi masaaki Tachibana Tokyo Medical University Ibaraki Medical Center Inashiki Japan

Purpose: The effectiveness of daily or weekly instillation of non-alkalinized lidocaine for patients suffering interstitial cystitis and/or bladder pain syndrome was evaluated retrospectively. Patients and methods: Five female patients (40 - 71 years old) diagnosed as interstitial cystitis by cystoscopic findings and a 68 year-old bladder pain syndrome patient were enrolled. All patients, having interstitial cystitis, had undergone hydrodistention therapy previously and had not improved their symptoms by empirical therapies. Daily or weekly (upon their severity of symptoms) intravesical instillation of 20 ml of 4% non-alkalinized (pH 6.0 - 7.0) lidocaine solution was performed for several times, and patients were asked to keep them in the bladder as long as two hours each time. Previous medications such as anti-cholinergic drugs and analgesics were continued according to patient's requirements and symptoms. The treatment effect was evaluated comparing O'Leary-Sant Symptom Index for interstitial cystitis patients and visual analog pain scale before and after the series of lidocaine therapies. Results: Instillation was made 6 to 16 times. Patients with interstitial cystitis improved their symptoms from O'Leary-Sant Symptom Index 17.5 to 10, Problem Index from 14.8 to 6 in an average. Crouching pain disappeared in all these patients after the instillation therapy. Severe interstitial cystitis findings on cystoscopy disappeared completely in one patient after the therapy. One patient having bladder pain syndrome reduced her analgesics use, and bladder-filling pain decreased from 7 to 3 as a visual analog scale score. One patient complained palpitation at 11th instillation and abandoned treatment thereafter, otherwise, none of these patients showed side effect concerning lidocaine toxicity. Conclusions: Intravesical non-alkalinized lidocaine instillation therapy for interstitial cystitis/bladder pain syndrome patients were an easy, safe and effective treatment.

关键词： Bladder Pain Syndrome Interstitial Cystitis Lidocaine Instillation Therapy

RECENT DEVELOPMENTS IN LOW-COORDINATE ORGANO PHOSPHORUS COMPOUNDS

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Trend of Cathodic E-Coat for Automobiles

第六届全国磷化学化工学术讨论会

作者： masaaki Yoshifuii Department of Chemistry Graduate School of ScienceTohoku University Sendai 980-8578 Japan

Sterically protected and multiple-bonded organophosphorus compounds are currently of interest. Utilizing the 2,4,6-tri-t-butylphenyl group (abbreviated to Mes*) as a protecting group, we have been successful in isolat...

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Trend of Cathodic E-Coat for Automobiles

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2nd Pacific Coating Forum

作者： masaaki Nakashio SHINTO PAINT Co. LTDResearch ＆ Development Department 10-736-ChomeMinamitsukaguchiAmagasakiHyogo661Japan

＜正＞1. Introduction Nowadays, key words on automotive coatings in Japan are Cost-down, Variety, New Functions, Added Value as well as Global environment protection. Under such circumstance, our R/D of cathodic E-Coat must work for various requirements from each key-word. For example, We should be more cost-conscious even at developing higher quality products. Higher film performances such as corrosion resistance, throwing power and weatherability are always important theme of our R/D. For friendly Earth, we have to develop Heavy-metal-free, low VOC and HAPS-free CED. We have also to save global energy and resources, by developing reasonable process in oven-temperature, pretreatment and even ED process. We are developing those E-coat to meet not only customer’s requirements but also global needs.

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