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Optimal Location Management for PCS Networks with Hexagonal Cellular Architectures

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Optimal Location Management for PCS Networks with Hexagonal ...

A Study of Discrete-Time Optimum Current Controller for the Virtual Synchronous Generator under Constraints

The 2004 Joint Conference of the 10～(th) Asia-Pacific Conference on Communications and the 5～(th) International Symposium on Multi-Dimensional Mobile Communications

作者： atushi Kubota Doctoral Program in Science ＆ Information Engineering University of Tsukuba Tsukuba Science City Ibaraki 305-8573 Japan

＜正＞This paper addresses the dynamic location management for personal communication sen’ice （PCS） networks with popular hexagonal celluar architectures. We first introduce a coordinate system for the hexagonal celluar architectures. Then, we develop an all-direction mobility model based on the coordinate system for the hexagonal cellular architecture to cope with the mobility patterns of mobile terminals （MTs）. By using the proposed model, the shape and size of the local area in the dynamic location update scheme are determined optimally.

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Smart Grid and Renewable Energy 2020年第1期11卷 1-20页

作者： atushi Umemura Rion Takahashi Junji Tamura Department of Electrical and Eslectronic Engineering Kitami Institute of Technology Kitami Japan

In recent years, power generation using renewable energy sources has been increasing as a solution to the global warning problem. Wind power generation can generate electricity day and night, and it is relatively more efficient among the renewable energy sources. The penetration level of variable-speed wind turbines continues to increase. The interconnected wind turbines, however, have no inertia and no synchronous power. Such devices can have a serious impact on the transient stability of the power grid system. One solution to stabilize such grid with renewable energy sources is to provide emulated inertia and synchronizing power. We have proposed an optimal design method of current control for virtual synchronous generators. This paper proposes an optimal control method that can follow the virtual generator model under constrains. As a result, it is shown that the proposed system can suppress the peak of the output of semiconductor device under instantaneous output voltage drop.

关键词： Wind Energy Generation Virtual Synchronous Generator Electric Current Control Optimal Control Discreate-Time Model Following Control Multi-Objective Genetic Algorithm

Remediation of Coastal Sediments by Addition of Calcium Nitrate and Presence of Benthos in a Muddy Tidal Flat

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Journal of Environmental Protection 2014年第8期5卷 703-708页

作者： Hiroyuki Harada Kotarou Akagi Hiroaki Tutioka atushi Hashimoto Faculty of Life and Environmental Science Prefectural University of Hiroshima Shobara Japan

This study investigated the change in denitrification rate in muddy tidal flats sediment by chemical and biological remediation. Column experiments were conducted to determine the dependence of denitrification rate on the redox potential. Filtered seawater was fed continuously to the pipe filled with sediment from the muddy tidal flats. An increase in the redox potential from -198 mV to 21 mV with bioturbation led to increases in the denitrification rate from 24.2 mg/m2/day to 29.8 mg/m2/day. The increase in denitrification was explained by the acceleration of mass transfer in the sediment. Redox-potential increased from -400 mV to -200 mV by the addition of 10 g calcium nitrate, acid volatile sulfide was below the detection limit to 20 cm depth, and denitrification rate was increased from 21.3 mg/m2/day to 36.4 mg/m2/day. It is considered that the increased nitrogen concentration led to an increase in microbial activity.

关键词： Redox Potential Muddy Tidal Sediment Denitrification Bioturbation Calcium Nitrate

Comic Image Category Classification Using SIFT Features

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通讯和计算机（中英文版） 2012年第4期9卷 414-421页

作者： Yusuke In Nakamura Kentaro Masakazu Higuchi Jonah Gamba atushi Koike Hitomi Murakami Seikei University 3-3-1 Kitijyoujikitamati musashino Tokyo Japan

The recent development of the information society leads to many multimedia data on the Web. Especially in Japan, there are a lot of comic images on the Web. However, such a phenomenon causes copyright problems. In order to develop useful information society, the need for comic managing system identifying the author of comic images and ignoring the copied images is increasing. Such a system is indispensable for our future information society. In this paper, we propose a system for identifying the image of comics, and evaluate its performance against conventional methods. Furthermore, we examine the performance with subjective evaluation result by specialists of cartoonist.

关键词：漫画 SIFT 分类图片特征信息社会管理系统多媒体数据

A Case of Low-Grade Appendiceal Mucinous Neoplasm of Its Difficultly to Distinguish from a Right Ovarian Tumor Due to Postmenopause

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Open Journal of Obstetrics and Gynecology 2022年第11期12卷 1140-1146页

作者： Tsutomu Muramoto Kyosuke Kamijo Megumi Sano Yuki Ibuki atushi Mori Yaeko Kobayashi Nagano Municipal Hospital Department of Obstetrics and Gynecology Nagano Japan

We here present a rare case of appendiceal tumor mimicking ovarian tumor in menopause woman. The patient was a 56-year-old woman, G1P1, who presented to our hospital with a right adnexal cyst diagnosed at another hospital. Transvaginal echocardiography showed a cyst in the right adnexal region, and pelvic contrast-enhanced MRI revealed a small cyst in the same region. The left ovary was atrophic and identifiable. It was unclear whether the cyst was contiguous with the gastrointestinal tract. Blood tests showed no elevation of tumor markers. We considered its possibility of a gastrointestinal origin, but since right normal ovary was not found, we thought the tumor was of ovarian origin and decided on a laparoscopic resection of the right adnexa. Intraoperatively, we observed atrophied bilateral normal ovaries, and the pelvic tumor was contiguous to the appendix. Surgeons performed a laparoscopic appendectomy after consultation with us. After resection we searched the abdominal and pelvic cavities, but found no obvious disseminated lesions. The histological diagnosis was low-grade appendiceal mucinous neoplasm (LAMN), a rare benign tumor of the appendix. Appendiceal tumors can be difficult to differentiate from right ovarian tumors due to their close anatomic location in the pelvis. It is possible to determine whether the tumor is of ovarian or appendiceal origin by identifying normal ovaries and the location of the feeding vessels into the tumors. In our case, there were no lesions other than the appendix, but LAMN can metastasize to the ovary, cause pseudomyoxoma peritonei, or be an overlapping tumor with an ovarian tumor. If an appendiceal tumor is diagnosed after surgery for ovarian tumor, the intra-abdominal cavity should be searched for metastasis or dissemination, and a thorough search for ovarian lesions should be performed with the possibility of an overlapping tumor in mind.

关键词： Low-Grade Appendiceal Mucinous Neoplasm Ovarian Tumor Menopause Woman

Severe Hyperphosphatemia Resulting in Acute Renal Failure and Ischemic Encephalopathy in a Patient with Infantile Leukemia

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Case Reports in Clinical Medicine 2014年第3期3卷 129-134页

作者： Atsuko Watanabe atushi Itano Takeshi Koga Ikuma Musha Michio Shimizu Ryuhei Tanaka Department of Diagnostic Pathology International Medical Center Saitama Medical University Hidaka Japan Department of Pediatric oncology/Hematology Inter-national medical center Saitama Medical University Hidaka Japan Department of Pediatrics Kasumigaura Medical Center Tuchiura Japan Department of Pediatric oncology/Hematology Inter-national medical center Saitama Medical University Hidaka Japan Department of Pediatrics Saitama Medical University Hospital Moroyama Japan

Tumor lysis syndrome (TLS), hyperleukocytosis, and disseminated intravascular coagulation (DIC) are representative oncological emergencies that overlap mutually at the beginning of therapy for aggressive leukemia. Lately recombinant urate oxidase (rUO) enables to control uric acid level and its crystallization, the most frequent risk factor for clinical TLS;therefore, hyperphosphatemia appears to be the main risk in the rUO era. We here report an infantile leukemia patient who developed severe hyperphosphatemia, resulting in acute renal failure and ischemic encephalopathy. A 9-month-old female baby was adynamic with a bulging anterior fontanel, and was diagnosed as infantile acute lymphoblastic leukemia with a mixed lineage leukemia gene rearrangement. A laboratory examination revealed leukocytosis, bicytopenia, hyperuricemia, a prolonged prothrombin time, activated partial thromboplastin time, and elevated lactate dehydrogenase level. Soon after a reduced dose of prednisolone was administered, she developed hypoxia caused by systemic inflammatory response syndrome and heart failure. Her white blood cell count decreased sharply, leading to acute renal failure due to hyperphosphatemia, which required continuous hemodiafiltration for 48 hours. Although renal function subsequently recovered, severe ischemic encephalopathy remained. She achieved morphological remission once, however, relapsed and passed away soon after. We have to pay attention to the progression of hyperphosphatemia, hyperkakemia and DIC, although hyperuricemia was controlled using rUO. Changes in electrolyte levels must be continuously monitored, and TLS, DIC and/or hyperleukocytosis should be promptly managed especially in patients who are sensitive to therapy.

关键词： Hyperphosphatemia Tumor Lysis Syndrome Hyperleukocytosis Disseminated Intravascular Coagulation Continuous Hemodiafiltration

基因组和转录组测序整合分析揭示混合型肝癌的不同分子亚型

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科学新闻 2020年第2期 47-47页

作者：曾木圣白凡张宁薛瑞栋陈璐张冲藤田征志 Ruoyan Li Shu-Mei Yan Choon Kiat Ong Xiwen Liao Qiang Gao Shota Sasagawa Yanmeng Li Jincheng Wang Hua Guo Qi-Tao Huang Qian Zhong Jing Tan Lisha Qi Wenchen Gong Zhixian Hong Meng Li Jingmin Zhao Tao Peng Yinying Lu Kiat Hon Tony Lim Arnoud Boot atushi ono Kazuaki Chayama Zemin Zhang Steve George Rozen Bin Tean Teh Xin Wei Wang Hidewaki Nakagawa 中山大学肿瘤防治中心北京大学生物医学前沿创新中心(BIOPIC)生命科学学院北京大学第一医院北京大学医学部北京大学科研部天津肿瘤医院肝胆外科北京大学生物医学前沿创新中心日本理化研究所

文章简介原发性肝癌每年造成全球约70万病人死亡且过半死亡病例来自中国,其致死率在所有癌种中高居第二。肝癌主要分为3种类型:肝细胞癌(约80%)、肝内胆管癌(约15%)和混合型肝癌(约5%)。混合型肝癌兼具肝细胞癌和胆管细胞癌两种成分,是... 详细信息

文章简介原发性肝癌每年造成全球约70万病人死亡且过半死亡病例来自中国,其致死率在所有癌种中高居第二。肝癌主要分为3种类型:肝细胞癌(约80%)、肝内胆管癌(约15%)和混合型肝癌(约5%)。混合型肝癌兼具肝细胞癌和胆管细胞癌两种成分,是预后最差的一种肝癌。既往对混合型肝癌的基因组学研究较少,混合型肝癌的分子特

关键词：混合型肝癌分子遗传临床样本分子亚型肝细胞癌整合分析基因组

Concurrence of composite adrenal pheochromocytoma-ganglioneuroma and renal pelvic cancer: A case report

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Case Reports in Clinical Medicine 2013年第1期2卷 93-96页

作者： Kuniyasu Muraoka Masashi Honda Bunya Kawamoto Seiya Inoue Katsuya Hikita Nobuyuki Hinata atushi Takenaka Department of Surgery Related Division of Urology Kobe University Graduate School of Medicine Kobe Japan Department of Surgery Division of Urology Tottori University Faculty of Medicine Yonago Japan

Embryologically, chromaffin cells of the pheo-chromocytoma and ganglion cells of the ganglioneuroma are both derived from neural crest cells. Composite pheochromocytoma-ganglioneuroma (Pheo-GN) in a single adrenal gland is very rare. A case report of a patient with composite Pheo-GN of the adrenal gland and renal pelvic cancer is presented. Laparoscopic left adrenalectomy, nephroureterectomy and para-aortic lymphadenectomy were performed. This represents the first report of simultaneous surgical treatment for composite Pheo-GN and renal pelvic cancer.

关键词： Pheochromocytoma Ganglioneuroma Renal Pelvic Cancer

A Trial Study of Propranolol and Zhigancao Decoction on the Central Depressant and Anti-osteoporosic Action in Ovariectomized Rats

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Journal of Traditional Chinese Medicine 2008年第1期28卷 64-70页

作者： Zhang Wenping Masayuki Kanehara Zhang Yanjun Guo Yi Shigeru Urata Hiroyuki Nakazawa Takayasu Murakami atushi Takeda Torao Ishida Acupuncture Department Suzuka University of Medical Science 1001-1 Kishioka Suzuka Mie 510-0293 Japan Tianjin University of Traditional Chinese Medicine Tianjin China.

Objective： This study was originally designed to observe the effects of propranolol （a β-blocker） and Zhigancao Decoction （炙甘草汤 ZGCD） on bone mass in ovariectomized rats. Methods： Thirty-eight female Sprague-Dawley rats were divided into four groups initially, a sham-operated group （Sham, n=7）, a model ovariectomized （OVX） group （Model, n=7）, a propranolol group （Pro, n=12） and a ZGCD group （ZGCD, n=12）. After 15 weeks of treatment, the expected effects were not found. In order to verify the situations of the experiment, we modified the study by administering calcitonin to a subgroup of the tested Pro and ZGCD rats. Results： The Pro and ZGCD treatments showed decreased heart rate and plasma norepinephrine level, but neither an increased bone mass nor any bone metabolism differences from the model rats were found. However, the OVX-induced bone loss was prevented by the sequent treatment of calcitonin. Conclusions： The results provide no evidence that the β-blocker propranolol may stimulate bone formation, and do not iustify its use for clinical treatment of osteoporosis.

关键词： propranolol Zhigancao Decoction bone sympathetic nerve