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消费和汽车电子创新的灵魂

今日电子 2009年第1期 69-70页

作者： Kevin M.kitagawa Xilinx公司

几乎无所不能的FPGA和CPLD随着成本、功耗和容量的不断改善，FPGA和CPLD已经广泛渗透到消费电子和汽车电子应用市场，其市场份额几乎已与通信市场二分天下。但通信和工业领域仍是FPGA两块最大的终端用户市场，Cisco、华为、西门子等公... 详细信息

几乎无所不能的FPGA和CPLD随着成本、功耗和容量的不断改善，FPGA和CPLD已经广泛渗透到消费电子和汽车电子应用市场，其市场份额几乎已与通信市场二分天下。但通信和工业领域仍是FPGA两块最大的终端用户市场，Cisco、华为、西门子等公司的交换机、无线基站等设备大量采用了FPGA进行设计。利用FPGA的可编程特性，甚至可以在设计完成以后对系统进行升级，以适应新的标准或提供更多的功能。

关键词：汽车电子消费电子 FPGA 灵魂创新通信市场 CPLD Cisco

4500V强注入型绝缘栅双极晶体管(IEGT)

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大功率变流技术 1995年第1期 13-16页

作者： Mitsuhiko kitagawa 童宗鉴日

首次提出了一种新型的MOS门极晶体管结构IEGT,由于增强了电子的注入,载流子分布与晶闸管相似,器件电压达4 500V时仍能保持低的正向压降。根据简单的一维模型分析可以相当精确地预测电流电压曲线并阐述适用于IEGT运行的新设计方法。所... 详细信息

首次提出了一种新型的MOS门极晶体管结构IEGT,由于增强了电子的注入,载流子分布与晶闸管相似,器件电压达4 500V时仍能保持低的正向压降。根据简单的一维模型分析可以相当精确地预测电流电压曲线并阐述适用于IEGT运行的新设计方法。所做出的4 500V IEGT在100 A/cm^2下的正向压降只有2.5 V,而在该压降下,IEGT的电流密度是普通挖槽门极IGBT的10倍以上。理论与实验均证实了IEGT的运行模式。

关键词：绝缘栅双极晶体管(IEGT) 器件结构分析计算特性曲线

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水文地球化学异常与1995年神户地震

世界地震译丛 1995年第6期26卷 69-70页

作者： C.-Y.King N.Koizumi Y.kitagawa 吕春来国家地震局地球物理研究所

地震前兆特别难以“抓住”;迄今,几个国家中大多数破坏性地震都是发生在地球物理和地球化学监测非强化的地区。1995年1月17日7.2级神户地震也不例外,它发生在远离东京及其附近密集仪器监测区的地方。然而,Igarashi等非常幸运地在神户附... 详细信息

地震前兆特别难以“抓住”;迄今,几个国家中大多数破坏性地震都是发生在地球物理和地球化学监测非强化的地区。1995年1月17日7.2级神户地震也不例外,它发生在远离东京及其附近密集仪器监测区的地方。然而,Igarashi等非常幸运地在神户附近于神户地震前几个月建起了一个地下水氡监测站,并能记录到明显的震前异常。他们的结果发表于本期《Sci-ence》上,同时发表的还有一篇Tsunogai和Wakita的文章,他们采用一种独创的廉价的方法在不同地点观测到另一种震前水文地球化学异常。这种方法是。

关键词：地震前兆水文地球化学地震

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在高压水蒸汽中硅的氧化

微纳电子技术 1977年第5期 59-61页

作者： H.kitagawa 胡成烈

在高压水蒸汽中硅的氧化是很有意义的,因为高压氧化能缩短在各种集成电路中氧化物隔离的氧化时间。有关高压氧化的一些报导记述了硅在非常高的压力下(从25到500个大气压)的氧化。在另一篇报导中介绍了一种更适合于半导体器件制造的氧化... 详细信息

在高压水蒸汽中硅的氧化是很有意义的,因为高压氧化能缩短在各种集成电路中氧化物隔离的氧化时间。有关高压氧化的一些报导记述了硅在非常高的压力下(从25到500个大气压)的氧化。在另一篇报导中介绍了一种更适合于半导体器件制造的氧化装置。硅的氧化是在高达1200℃的温度和压强达10个大气压的条件下进行的,但是未作详细的报导。

关键词：氧化时间厚度水蒸汽高压氧化速率常数

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美容针灸的风险管理

World Journal of Acupuncture-Moxibustion 2020年第4期30卷 300-303页

作者： Kozue Orihashi Hiroyuki Mitsunaga Mari Okamoto Mitsuhiro Kawabata Ryo Hasegawa Kazue Nakamura 谭玙 Masateru Kawai Hiroyuki kitagawa 周昂 Bishinkai Tokyo 108-0071Japan Medical Cosmetic Acupuncture Association Tokyo 106-0045Japan Anti-Aging Biyouhari Kenkyukai Nagoya city 466-0023Japan Seirin corporation Sizhioka city 424-0037Japan 四川源泉医疗器械有限公司成都610041

In order to guarantee the clinical safety of cosmetic acupuncture,all kinds of potential risks are clarified and *** organizations for cosmetic acupuncture training have conducted the investigation on the risk of cosmetic acupuncture *** investigation contents have been collected to be a *** focuses on 12 treatment items that may cause the risks in cosmetic acupuncture and 3 treatment items that is coincident with cosmetic *** potential risks are summarized in clinical practice under the risk management of cosmetic acupuncture.

关键词： Acupuncture Cosmetic Safety Risk

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云母复合绝缘的机械疲劳强度

绝缘材料 1978年第Z1期 12-14页

作者： Kyoichi Shibayama Tatsuo kitagawa 应付昌三菱电气公司三菱电气公司

1.引言云母已被满意地作为电机线圈的主绝缘材料,最近推广粉云母纸(再生云母)是由于粉云母纸经济、质量均匀等优点以及由于和粉云母纸一起组成一种可靠的复合绝缘用的合成树脂发展的结果。目前,有几种粉云母纸可供使用,这几种粉云母纸... 详细信息

1.引言云母已被满意地作为电机线圈的主绝缘材料,最近推广粉云母纸(再生云母)是由于粉云母纸经济、质量均匀等优点以及由于和粉云母纸一起组成一种可靠的复合绝缘用的合成树脂发展的结果。目前,有几种粉云母纸可供使用,这几种粉云母纸用不同工艺和不同原材料制成,它们具有不同鳞片尺寸和表面特性,这些会影响复合绝缘的最终性能。

关键词：复合结构粉云母纸疲劳强度力学强度云母层状硅酸盐矿物复合绝缘电器绝缘

Laparoscopic Submucosal Dissection for Gastrointestinal Stromal Tumor of the Stomach: A Novel Technique for Local Excision with a Minimal Curative Margin

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Surgical Science 2012年第10期3卷 494-498页

作者： Norihito Wada Yoshiro Saikawa Hiroya Takeuchi Tsunehiro Takahashi Rieko Nakamura Hirofumi Kawakubo Kaori Kameyama Makio Mukai Yuko kitagawa Department of Surgery School of Medicine Keio University Tokyo Japan Departments of Pathology School of Medicine Keio University Tokyo Japan

Background: Laparoscopic wedge resection is accepted as a curative treatment for small- and mediumsized gastroin-testinal stromal tumors (GISTs) of the stomach. Conventional methods involving surgical staplers require relatively large lateral margins, which may cause deformity and postoperative dysfunction of the gastric remnant. In this study, we introduce a novel technique called laparoscopic submucosal dissection (LSD) in which the defects of the stomach are minimized and a microscopic negative margin is secured. Methods: The normal seromuscular layer of the gastric wall was dissected with a 5 mm lateral margin. Then, the submucosal tissue was divided carefully using a monopolar electrosurgical device with a curved spatula tip. Results: The operation time was 170 min, and the amount of bleeding was very small. We confirmed an intact pseudo-capsule and marginal subserosal or submucosal tissue of the tumor by histological analysis. The postoperative course was uneventful with no complications. Endoscopy showed minimal deformity of the gastric remnant. Conclusions: We think that LSD is a curative and less invasive treatment for GIST of the stomach. Further investigations are necessary to evaluate the oncological and functional outcomes of this procedure.

关键词： Gastrointestinal Stromal Tumor Submucosal Tumor Endoscopic Submucosal Dissection Wedge Resection Laparoscopic Surgery Minimally Invasive Surgery

Colon perforation due to antigenemia-negative cytomegalovirus gastroenteritis after liver transplantation: A case report and review of literature

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World Journal of Gastroenterology 2019年第15期25卷 1899-1906页

作者： Takahiro Yokose Hideaki Obara Masahiro Shinoda Yutaka Nakano Minoru Kitago Hiroshi Yagi Yuta Abe Yohei Yamada Kentaro Matsubara Go Oshima Shutaro Hori Sho Ibuki Hisanobu Higashi Yuki Masuda Masanori Hayashi Miho Kawaida Takehiko Mori Takumi Fujimura Ken Hoshino Kaori Kameyama Tatsuo Kuroda Yuko kitagawa Department of Surgery Keio University School of Medicine Department of Pathology Keio University School of Medicine Division of Hematology Department of Medicine Keio University School of Medicine

BACKGROUND Cytomegalovirus(CMV) remains a critical complication after solid-organ transplantation. The CMV antigenemia(AG) test is useful for monitoring CMV infection. Although the AG-positivity rate in CMV gastroenteritis is known to be low at onset, almost all cases become positive during the disease course. We treated a patient with transverse colon perforation due to AG-negative CMV gastroenteritis, following a living donor liver transplantation(LDLT).CASE SUMMARY The patient was a 52-year-old woman with decompensated liver cirrhosis as a result of autoimmune hepatitis who underwent a blood-type compatible LDLT with her second son as the donor. On day 20 after surgery, upper and lower gastrointestinal endoscopy(GE) revealed multiple gastric ulcers and transverse colon ulcers. The biopsy tissue immunostaining confirmed a diagnosis of CMV gastroenteritis. On day 28 after surgery, an abdominal computed tomography revealed transverse colon perforation, and simple lavage and drainage were performed along with an urgent ileostomy. Although the repeated remission and aggravation of CMV gastroenteritis and acute cellular rejection made the control of immunosuppression difficult, the upper GE eventually revealed an improvement in the gastric ulcers, and the biopsy samples were negative for CMV. The CMV-AG test remained negative, therefore, we had to evaluate the status of the CMV infection on the basis of the clinical symptoms and *** This case report suggests a monitoring method that could be useful for AGnegative CMV gastroenteritis after a solid-organ transplantation.

关键词： Cytomegalovirus gastrointestinal disease Colon perforation Antigenemia negative Liver transplantation Case report

Intraperitoneal Chemotherapy as a Multimodal Treatment for Gastric Cancer Patients with Peritoneal Metastasis

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Journal of Cancer Therapy 2013年第9期4卷 6-15页

作者： Sachio Fushida Katsunobu Oyama Jun Kinoshita Tomoya Tsukada Kouichi Okamoto Hidehiro Tajima Itasu Ninomiya Hirohisa kitagawa Takashi Fujimura Tetsuo Ohta Department of Gastroenterological Surgery Kanazawa University Hospital Kanazawa Japan

Peritoneal metastasis of gastric cancer is mainly caused by the dispersion of free cancer cells from the serosal surface of the invaded stomach, from surgically transected lymphatic channels, and from tumor cell-containing blood from the primary lesion into the peritoneal cavity. Intraperitoneal chemotherapy (IPC) combined with surgery has performed for the prevention and treatment of peritoneal metastasis in gastric cancer. The efficacy of this technique is influenced by the pharmacokinetic advantage achievable with the anticancer drug, timing of administration, combination with hyperthermia, and tumor volume. The pharmacokinetic advantage for peritoneal cavity exposure relative to peripheral circulation by intraperitoneal delivery for drugs including cisplatin (10-fold advantage), mitomycin C (20- to 30-fold advantage), docetaxel (500-fold advantage), and paclitaxel (1000-fold advantage) has been confirmed. To avoid uneven drug distribution in the peritoneal cavity and the re-growth of residual tumor, it seems to be reasonable to perform IPC perioperatively;however, early perioperative intraperitoneal chemotherapy (EPIC) has a relatively high morbidity rate compared with intraoperative IPC. Hyperthermia has both cytotoxicity of itself and a synergistic effect with anticancer drugs, especially mitomycin C. In the adjuvant setting, patients with either hyperthermic intraperitoneal chemotherapy (HIPEC) or EPIC showed a significant improvement of survival compared to those with surgery alone. In addition, extensive intraoperative peritoneal lavage (EIPL) seems also to be a reasonable method to reduce free cancer cells in the peritoneal cavity. For the treatment of peritoneal metastasis, cytoreductive surgery which achieves R0 or R1 resection followed by IPC has demonstrated a survival benefit, whereas gross residual tumor (R2) treated by IPC has shown poor prognosis. Extensive cytoreductive surgery, such as peritonectomy, followed by IPC achieved long-term survival fo

关键词： Peritoneal Metastasis Gastric Cancer Intraperitoneal Chemotherapy