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世界地震译丛 1996年第5期27卷 39-51页

作者： M.kikuchi H.kanamori k.satake 许康生甘肃省高台地震台

我们利用多重事件的反褐积方法分析了1988年12月7日的亚美尼亚斯皮塔克地震的远震P波和S波,以探讨震源过程。长周期远震体波表现出复杂的波形,比通常看到的同等大小的地震显得更复杂。识别出了两组次级事件,其中一组是最初20s期间的走... 详细信息

我们利用多重事件的反褐积方法分析了1988年12月7日的亚美尼亚斯皮塔克地震的远震P波和S波,以探讨震源过程。长周期远震体波表现出复杂的波形,比通常看到的同等大小的地震显得更复杂。识别出了两组次级事件,其中一组是最初20s期间的走滑事件,另一组是初始破裂之后约30s开始的倾滑事件。所有子事件的张量之和实质上是标量矩为1.47×10^(19)Nm的走滑事件(走向302°、倾角59°、滑动角143°),倾滑事件(走向89°、倾角60°、滑动角88°)的地震矩是5.6×10^(18)Nm,近乎总量的40％,而且与其他具有走滑机制的次事件相比,矩释放速度慢,我们称这种事件为慢速余滑事件。这种慢速余滑事件的机制和由阿拉伯板块与俄罗斯板块之间的大陆碰撞在高加索地区引起的南北压缩为主的现代形变是一致的。结果表明,在一个出现走滑运动和地壳缩短的地方,如南加州大的走滑事件可能伴随着大的逆冲事件,反之亦然。要确定同震形交的图象,在时间、空间和机制上分辨多重事件是十分必要的。

关键词：地震震源余震滑移事件

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第28章:海啸

世界地震译丛 2006年第3期37卷 59-75页

作者： k.satake 薛艳（译）张永仙（校）不详中国地震台网中心

海啸是一种海洋重力波，是由海底地震或诸如火山喷发、滑坡等其他地质运动引起的。大多数海啸是由浅源大地震引起的，所以沿板块俯冲带分布（图1）。Tsunami（海啸）一词是日语，表示港口波的意思。海啸通常很小，在深海几乎看不出来，... 详细信息

海啸是一种海洋重力波，是由海底地震或诸如火山喷发、滑坡等其他地质运动引起的。大多数海啸是由浅源大地震引起的，所以沿板块俯冲带分布（图1）。Tsunami（海啸）一词是日语，表示港口波的意思。海啸通常很小，在深海几乎看不出来，但是当其接近海岸或海港时，就会变得很大，并造成破坏。有时候，海啸被称为地震海洋波，或被错误地称为潮汐波。

关键词：海啸 Tsunami 海底地震火山喷发地质运动重力波大地震俯冲带近海岸潮汐波

1946年南海地震的同震滑动分布及该地震引起的无震滑动

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世界地震译丛 2002年第3期33卷 28-34页

作者： Y．Tanioka k.satake 李学勤杜桂香吕春来范国华不详中国地震局地球物理研究所

由海啸波形的反演估算了1946年南海地震(Mw8.3)断层面上的同震滑动分布。比以前的研究(satake,1993)有以下3个方面的进展:(1)使用了大量的较小次级断层;(2)次级断层更拟合板块的几何形状;(3)应用了更详尽的探测数据。反演的结果表明,实... 详细信息

由海啸波形的反演估算了1946年南海地震(Mw8.3)断层面上的同震滑动分布。比以前的研究(satake,1993)有以下3个方面的进展:(1)使用了大量的较小次级断层;(2)次级断层更拟合板块的几何形状;(3)应用了更详尽的探测数据。反演的结果表明,实测波形和合成波形间的一致性比以前的研究有极大改善。在四国近海震源区西半部,在闭锁区下倾端附近发生了约6m的大滑动。上倾或浅部的滑动很小,说明该地区为弱的地震耦合。在纪伊半岛近海震源区东半部的约3m的大滑动延伸到整个闭锁区。由大地测量数据(Sagiya and Thatcher,1999)估计了上板块八字形断层上的大滑动,对于解释海啸波形并不需要这样大的滑动,表明这些大的滑动是无震滑动。板块界面下倾端上的两个滑动分布,一个是由大地测量数据得到的,而另一个是由海啸波形得到的,除了在四国室户角下的滑动外,两个滑动分布都相当一致。据此来看,无震滑动也发生在室户角下部的板块交界处。

关键词：地震滑动断层海啸波形无震滑动

2004年12月26日苏门答腊—安达曼特大地震

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世界地震译丛 2005年第6期36卷 5-14页

作者： T.LAY H.kANAMORI C.J.AMMON M.NETTLES S.N.WARD R.C.ASTER S.L.BECk S.L.BILEk M.R.BRUDZINSkI R.BUTLER H.R.DESHON G.EkSTRM k.satake S.SIPkIN 石玉涛中国地震局地震预测研究所

发生在2004年12月26日（Mw=9．1～9．3级）和2005年3月28日（Mw=8．6级）的地震是过去40年中最大的两次地震，它们在欧亚大陆板块的东南部和印度-澳大利亚板块之间裂开一条长达1600km的断层。其中第一次地震引发的海啸吞噬了28．3万多... 详细信息

发生在2004年12月26日（Mw=9．1～9．3级）和2005年3月28日（Mw=8．6级）的地震是过去40年中最大的两次地震，它们在欧亚大陆板块的东南部和印度-澳大利亚板块之间裂开一条长达1600km的断层。其中第一次地震引发的海啸吞噬了28．3万多人的性命。苏门答腊岛班达亚奇附近的断层滑动了15m，但是在其北边，沿着尼科巴群岛和安达曼群岛，断层快速滑动的距离则小了很多。海啸和测地学的观测表明，在50min或更长的时间范围内北部的断层发生了更多的缓慢滑动。

关键词：苏门答腊大地震断层滑动大陆板块澳大利亚时间范围东南部测地学海啸群岛

Conversion surgery after gemcitabine and cisplatin plus durvalumab for advanced intrahepatic cholangiocarcinoma:A case report

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World Journal of Clinical Cases 2024年第34期12卷 6721-6727页

作者： Yu Igata Masashi kudo Motohiro kojima Shota kami keishiro Aoki Tomoyuki satake Tatsushi kobayashi Motokazu Sugimoto Shin kobayashi Masaru konishi Naoto Gotohda Department of Hepatobiliary and Pancreatic Surgery National Cancer Center Hospital EastKashiwa 277-8577Japan Exploratory Oncology Research and Clinical Trial Center National Cancer CenterKashiwa 277-8577Japan Department of Hepatobiliary and Pancreatic Oncology National Cancer Center Hospital EastKashiwa 277-8577Japan Department of Diagnostic Radiology National Cancer Center Hospital EastChiba 277-8577Japan

BACkGROUND The combination of immune checkpoint inhibitors and chemotherapy has shown promising results for the treatment of advanced biliary tract cancer(BTC).Based on the results of the TOPAZ-1 trial,a gemcitabine and cisplatin plus durvalumab(GCD)regimen was recently approved as first-line therapy for patients with advanced ***,post-GCD conversion surgery has not been previously ***,we describe a case of advanced intrahepatic cholangiocarcinoma(ICC)successfully treated with radical surgery after *** SUMMARY A 65-year-old female diagnosed with advanced ICC with periductal infiltration into the hepatic hilum underwent eight cycles of GCD,followed by durvalumab maintenance treatment,with mild adverse *** response was ***,a conversion surgery with extended left hepatectomy and bile duct resection was *** resection margins were negative,and the pathological diagnosis was compatible with small duct type *** patient remained disease-free for 8 months without adjuvant *** We describe the case of a patient who received successful conversion surgery after GCD treatment for advanced ICC.

关键词： Conversion surgery Intrahepatic cholangiocarcinoma Small duct type Immunotherapy Case report

High-Accuracy Polishing Technique Using Dwell Time Adjustment

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Communications in Computational Physics 2006年第4期1卷 701-715页

作者： S.satake k.Yamamoto S.Igarashi Department of Applied Electronics Tokyo University of Science2641 YamazakiNodaChiba 278-8510Japan

Two algorithms for dwell time adjustment are evaluated under the same polishing conditions that involve tool and work *** methods are based on Preston’s *** first method is a convolution algorithm based on the Fast Fourier *** second is an iterative method based on a constraint problem,extended from a one-dimensional formulation to address a two-dimensional *** methods are investigated for their computational cost,accuracy,and polishing *** convolution method has high accuracy and high *** constraint problem on the other hand is slow even when it requires larger memory and thus is more ***,unlike the other case a negative region in the polishing shape is not predicted ***,new techniques are devised by combining the two methods.

关键词： Polishing surface grinding dwell time convolution method fast Fourier transform constraint problem

Visual Person Identification Using a Distance-dependent Appearance Model for a Person Following Robot

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International Journal of Automation and computing 2013年第5期10卷 438-446页

作者： Junji satake Masaya Chiba Jun Miura Department of Computer Science and Engineering Toyohashi University of Technology

This paper describes a person identifcation method for a mobile robot which performs specifc person following under dynamic complicated environments like a school canteen where many persons *** propose a distance-dependent appearance model which is based on scale-invariant feature transform（SIFT） *** is a powerful image feature that is invariant to scale and rotation in the image plane and also robust to changes of lighting ***,the feature is weak against afne transformations and the identifcation power will thus be degraded when the pose of a person changes *** therefore use a set of images taken from various directions to cope with pose ***,the number of SIFT feature matches between the model and an input image will decrease as the person becomes farther away from the ***,we also use a distance-dependent *** person following experiment was conducted using an actual mobile robot,and the quality assessment of person identifcation was performed.

关键词： Mobile robots image processing intelligent systems identifcation scale-invariant feature transform(SIFT)feature

Gastric adenocarcinoma of fundic gland type with signet-ring cell carcinoma component: A case report and review of the literature

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World Journal of Gastroenterology 2018年第26期24卷 2915-2920页

作者： keita kai Masaaki satake Osamu Tokunaga Department of Pathology Saga University Hospital Department of Gastroenterology Koga Hospital 21 Department of Pathology Shin Koga Hospital

A depressed lesion was found at a gastric angle of 76-yearold Japanese woman by esophagogastroduodenoscopy. Four years prior, she was diagnosed with a Helicobacter pylori infection but no eradication was performed. The pathological diagnosis of biopsy specimens was signet-ring cell carcinoma. Endoscopic submucosal dissection(ESD) was performed. Histopathological examination of the ESD specimen revealed proliferation of well-differentiated tubular adenocarcinoma mimicking fundic gland cells at the deep layer of the lamina propria mucosae. These tumor cells expressed focally pepsinogen-Ⅰ, diffusely MUC6, and scattered H^+/k^+ ATPase according to immunohistochemistry. Therefore, we diagnosed this tumor as gastric adenocarcinoma of fundic gland type(GA-FG). Adjacent to the GA-FG, proliferation of signet-ring cell carcinoma which diffusely expressed MUC 2 and MUC 5AC was observed. Intestinal metaplasia was focally observed in the surrounding mucosa of the signet-ring cell carcinoma. To the best of our knowledge, this is the first case report of GA-FG with a signet-ring cell carcinoma component. The origin of signet-ring cell carcinoma, i.e., whether it accidentally arose from a non-neoplastic mucosa and coexisted with the GA-FG or dedifferentiated from the GA-FG is unclear at present. We expect the accumulation of similar cases and further analysis to clarify this issue.

关键词： Gastric adenocarcinoma of fundic gland type Endoscopic submucosal dissection Helicobacter pylori Intestinal metaplasia Signet-ring cell carcinoma

An Approximate High Gain Observer for Speed-sensorless Estimation of Induction Motors

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IEEE/CAA Journal of Automatica Sinica 2019年第1期6卷 53-63页

作者： Yebin Wang Lei Zhou Scott A.Bortoff Akira satake Shinichi Furutani IEEE Mitsubishi Electric Research Laboratories the Department of Mechanical Engineering Massachusetts Institute of Technology the Advanced Technology R&D Center Mitsubishi Electric Corporation

Rotor speed estimation for induction motors is a key problem in speed-sensorless motor drives. This paper performs nonlinear high gain observer design based on the full-order model of the induction motor. Such an effort appears nontrivial due to the fact that the full-model at best admits locally a non-triangular observable form(NTOF), and its analytical representation in the NTOF can not be obtained. This paper proposes an approximate high gain estimation algorithm, which enjoys a constructive design, ease of tuning, and improved speed estimation and tracking performance. Experiments demonstrate the effectiveness of the proposed algorithm.

关键词： Induction motor industrial applications nonlinear state estimation speed-sensorless motor drive