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局域功函数图像及其在Cu(111)-Au/Pd表面的应用

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物理学报 2005年第4期54卷 1523-1527页

作者：贾金锋董国材王立莉马旭村薛其坤 y.hasegawa T.Sakurai 中国科学院物理研究所北京100080 Institute for Materials Research Tohoku University Sendai 980-8577 Japan

用扫描隧道显微镜 (STM)对Cu(111) Au和Cu(111) Pd表面的局域功函数进行了研究 .通过测量隧道电流对针尖样品间距的响应 ,得到了与STM形貌图一一对应的表面局域功函数图像 .实验发现 ,Au Pd覆盖层和Cu衬底间的功函数有明显的不同 .Pd... 详细信息

用扫描隧道显微镜 (STM)对Cu(111) Au和Cu(111) Pd表面的局域功函数进行了研究 .通过测量隧道电流对针尖样品间距的响应 ,得到了与STM形貌图一一对应的表面局域功函数图像 .实验发现 ,Au Pd覆盖层和Cu衬底间的功函数有明显的不同 .Pd薄膜的功函数甚至超过了其体本征值 ,且功函数在台阶处变小 .用偶极子的形成解释了台阶处功函数的降低 .这一工作表明 ,用测量局域功函数的方法容易区分表面上不同的元素 ,并具有纳米尺度的空间分辨率 .

关键词：扫描隧道显微镜局域功函数 STM形貌图表面物理学

Dendritic Learning-Incorporated Vision Transformer for Image Recognition

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IEEE/CAA Journal of Automatica Sinica 2024年第2期11卷 539-541页

作者： Zhiming Zhang Zhenyu Lei Masaaki Omura Hideyuki hasegawa Shangce Gao Faculty of Engineering University of ToyamaToyama-shi 930-8555Japan IEEE

Dear Editor,This letter proposes to integrate dendritic learnable network architecture with Vision Transformer to improve the accuracy of image *** this study,based on the theory of dendritic neurons in neuroscience,we design a network that is more practical for engineering to classify visual *** on this,we propose a dendritic learning-incorporated vision Transformer(DVT),which out-performs other state-of-the-art methods on three image recognition benchmarks.

关键词： Image network image

Dynamic ultrasonography for optimizing treatment position in superior mesenteric artery syndrome:Two case reports and review of literature

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World Journal of Gastroenterology 2024年第5期30卷 499-508页

作者： Nobuaki hasegawa Akihiko Oka Muyiwa Awoniyi yuri yoshida Hiroshi Tobita Norihisa Ishimura Shunji Ishihara Department of Internal Medicine II Shimane University Faculty of MedicineIzumo 693-8501ShimaneJapan Department of Gastroenterology Hepatology and NutritionDigestive Disease and Surgery InstituteHepatology SectionCleveland ClinicClevelandOH 44195United States Clinical Laboratory Division Shimane University HospitalIzumo 693-8501ShimaneJapan Division of Hepatology Shimane University HospitalIzumo 693-8501Japan

BACKGROUND Superior mesenteric artery(SMA)syndrome is a rare cause of duodenal obstruction by extrinsic compression between the SMA and the aorta(SMA-Ao).Although the left lateral recumbent position is considered effective in the treatment of SMA syndrome,individual variations in the optimal patient position have been *** this report,we present two elderly cases of SMA syndrome that exhibited rapid recovery due to ultrasonographic dynamic evaluation of the optimal position for each *** SUMMARy Case 1:A 90-year-old man with nausea and *** diagnosis of SMA syndrome by computed tomography(CT),ultrasonography(US)revealed the SMA-Ao distance in the supine position(4 mm),which slightly improved in the lateral position(5.7–7.0 mm)without the passage of duodenal ***,in the sitting position,the SMA-Ao distance was increased to 15 mm accompanied by improved content ***,US indicated enhanced passage upon abdominal massage on the right *** day 2,the patient could eat comfortably with the optimal position and *** 2:An 87-year-old woman with *** the diagnosis of SMA syndrome and aspiration pneumonia by CT,dynamic US confirmed the optimal position(SMA-Ao distance was improved to 7 mm in forward-bent position,whereas it remained at 5 mm in the supine position).By day 7 when her pneumonia recovered,she could eat with the optimal *** The optimal position for SMA syndrome varies among *** US appears to be a valuable tool in improving patient outcomes.

关键词： Superior mesenteric artery syndrome Wilkie’s syndrome Cast syndrome Aorto-mesenteric compass syndrome Ultrasonography Case report

High-temperature corrosion of sintered RE_(2)Si_(2)O_(7)(RE=yb and Ho)environmental barrier coating materials by volcanic ash

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1628-1638页

作者： Ayahisa Okawa Son Thanh Nguyen Tadachika Nakayama Thi-Mai-Dung Do Hisayuki Suematsu Shu yin Takuya hasegawa Tsuneo Suzuki Takashi Goto Koichi Niihara Institute of Multidisciplinary Research for Advanced Materials Tohoku UniversitySendai 980-8577Japan Department of Creative Engineering National Institute of TechnologyKushiro 084-0916Japan Extreme Energy-Density Research Institute Nagaoka University of TechnologyNagaoka 940-2188Japan Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai 980-8577Japan

Rare-earth silicates are promising environmental barrier coatings(EBCs)that can protect SiC_(f)/Si C_(m)substrates in next-genera tion gas turbine ***,RE_(2)Si_(2)O_(7)(RE=yb and Ho)shows potential as an EBC due to its coefficient of thermal expansion(CTE)compatible with substrates and high resistance to water vapor *** target operating temperature for next-generation tur bine blades is 1400°*** is inevitable during adhesion to molten volcanic ash,and thus,understanding the corrosion behavior o the material is crucial to its *** study investigates the high-temperature corrosion behavior of sintered RE_(2)Si_(2)O_(7)(RE=yb and Ho).Samples were prepared using a solid-state reaction and hot-press *** were then exposed to volcanic ash at 1400°C for 224,and 48 *** 48 h of exposure,volcanic ash did not react with yb_(2)Si_(2)O_(7)but penetrated its interior,causing *** Ho_(2)Si_(2)O_(7)was partially dissolved in the molten volcanic ash,forming a reaction zone that prevented volcanic ash melts from penetrating the *** increasing heat treatment time,the reaction zone expanded,and the thickness of the acicular apatite grains increased The Ca:Si ratios in the residual volcanic ash were mostly unchanged for yb_(2)Si_(2)O_(7)but decreased considerably over time for Ho_(2)Si_(2)O_(7).Th Ca in volcanic ash was consumed and formed apatite,indicating that RE^(3+)ions with large ionic radii(Ho>yb)easily precipitated apatit from the volcanic ash.

关键词： environmental barrier coating volcanic ash rare-earth disilicate corrosion

Severe aconite poisoning successfully treated with veno-arterial extracorporeal membrane oxygenation:A case report

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World Journal of Clinical Cases 2024年第2期12卷 399-404页

作者： Saeko Kohara yoshito Kamijo Ryoko Kyan Ichiro Okada Eiju hasegawa Soichiro yamada Koichi Imai Asuka Kaizaki-Mitsumoto Satoshi Numazawa Department of Critical Care Medicine and Trauma National Hospital Organization Disaster Medical CenterTokyo 1900014Japan Department of Clinical Toxicology Saitama Medical UniversitySaitama 3500495Japan Saitama Prefectural Institute of Public Health Saitama Prefectural Institute of Public HealthSaitama 3550133Japan Division of Toxicology Department of PharmacologyToxicology and TherapeuticsShowa University School of PharmacyTokyo 1428555Japan

BACKGROUND Most species of aconite contain highly toxic aconitines,the oral ingestion of which can be fatal,primarily because they cause ventricular *** describe a case of severe aconite poisoning that was successfully treated through venoarterial extracorporeal membrane oxygenation(VA-ECMO)and in which detailed toxicological analyses of the aconite roots and biological samples were performed using liquid chromatography-tandem mass spectrometry(LC-MS/MS).CASE SUMMARy A 23-year-old male presented to the emergency room with circulatory collapse and ventricular arrhythmia after ingesting approximately half of a root labeled,“Aconitum japonicum Thunb”.Two hours after arrival,VA-ECMO was initiated as circulatory collapse became refractory to antiarrhythmics and *** hours after arrival,an electrocardiogram revealed a return to sinus *** patient was weaned off VA-ECMO and the ventilator on hospital days 3 and 5,*** hospital day 15,he was transferred to a psychiatric *** other half of the root and his biological samples were toxicologically analyzed using LC-MS/MS,revealing 244.3 mg/kg of aconitine and 24.7 mg/kg of mesaconitine in the *** on admission contained 1.50 ng/mL of *** hospital day 2,neither were *** on admission showed 149.09 ng/mL of aconitine and 3.59 ng/mL of mesaconitine,but these rapidly decreased after hospital day *** The key to saving the life of a patient with severe aconite poisoning is to introduce VA-ECMO as soon as possible.

关键词： Aconite poisoning Fatal arrhythmia Veno-arterial extracorporeal membrane oxygenation Aconitine Mesaconitine Case report

固态vander WaalsC _(60)膜晶格的Coulomb膨胀

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中国科学（A辑） 2000年第6期30卷 529-536页

作者：薛其坤厉建龙孙牧陆华 T.Hashizume y.Ling y.hasegawa K.Ohno Z.Q.Li y.Kawazoe T.Sakurai H.Kamiyama H.Shinohara 中国科学院表面物理国家重点实验室 Institute for Materials Research Aomori Public College Chemistry Department

利用扫描隧道显微镜观测到生长在GaAs(0 0 1 ) 2× 4表面上的固态vanderWaalsC6 0 膜在室温下较之C6 0 晶体具有 1 3%的晶格膨胀 .这种膨胀是由从GaAs衬底饱和的As悬挂键上转移到C6 0 分子上的电荷之间的Coulomb作用引起的 .理论计算表... 详细信息

利用扫描隧道显微镜观测到生长在GaAs(0 0 1 ) 2× 4表面上的固态vanderWaalsC6 0 膜在室温下较之C6 0 晶体具有 1 3%的晶格膨胀 .这种膨胀是由从GaAs衬底饱和的As悬挂键上转移到C6 0 分子上的电荷之间的Coulomb作用引起的 .理论计算表明 ,平均约有 1 76个电子转移到每个C6 0 分子上 .有趣的是 ,该固态C6 0 膜为 (1 1 0 )取向 ,这明显不同于生长于其他半导体或金属表面上的具有 (1 1 1 )取向的六角密排C6 0 膜 .这种反常取向的薄膜是由GaAs衬底的各向异性产生的一维限制作用导致的 .通过选择不同的衬底 ,可以控制C6 0

关键词：晶体生长分子束外延碳60膜晶格 Coulomb膨胀

导管内注射无水乙醇对多囊肾增大的有症状病人进行动脉栓塞

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国际医学放射学杂志 2015年第6期 591-591页

作者： y.Sakuhara S.Nishio K.Morita D.Abo y.hasegawa N.yuasa 于静 Department of Diagnostic and Interventional Radiology Hokkaido University Hospital

摘要目的经导管注射无水乙醇进行动脉栓塞(TAE),评估其应用于增大的多囊肾病有症状病人的安全性及有效性。方法本研究为前瞻性实验,获得了机构伦理委员会批

关键词：多囊肾 TAE 无水乙醇病人动脉栓塞

Complex-Valued Neural Networks:A Comprehensive Survey

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IEEE/CAA Journal of Automatica Sinica 2022年第8期9卷 1406-1426页

作者： Chiyan Lee Hideyuki hasegawa Shangce Gao Faculty of Engineering University of ToyamaToyama 930-8555Japan

Complex-valued neural networks(CVNNs)have shown their excellent efficiency compared to their real counterparts in speech enhancement,image and signal *** throughout the years have made many efforts to improve the learning algorithms and activation functions of *** CVNNs have proven to have better performance in handling the naturally complex-valued data and signals,this area of study will grow and expect the arrival of some effective improvements in the ***,there exists an obvious reason to provide a comprehensive survey paper that systematically collects and categorizes the advancement of *** this paper,we discuss and summarize the recent advances based on their learning algorithms,activation functions,which is the most challenging part of building a CVNN,and ***,we outline the structure and applications of complex-valued convolutional,residual and recurrent neural ***,we also present some challenges and future research directions to facilitate the exploration of the ability of CVNNs.

关键词： Complex activation function complex backpropagation algorithm complex-valued learning algorithm complex-valued neural network deep learning

Retinal ganglion cell protection by hop-flower extract as a novel neuroprotective strategy for glaucoma

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Neural Regeneration Research 2022年第6期17卷 1267-1268页

作者： Tomoko hasegawa Hanako Ohashi Ikeda Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of MedicineKyotoJapan Research Fellow of Japan Society for the Promotion of Science TokyoJapan

In glaucoma,a leading cause of blindness,retinal ganglion cells are progressively *** pressure reduction is the only established treatment for glaucoma(Collaborative Normal-Tension Glaucoma Study Group,1998;Vass et al.,2007).However,in some cases,visual field loss progresses despite sufficiently reduced intraocular pressure(Collaborative Normal-Tension Glaucoma Study Group,1998;Killer and Pircher,2018).While intraocular pressure and age are known risk factors for glaucoma(Ernest et al.,2013),the underlying mechanisms of glaucoma progression are not fully understood.

关键词： glaucoma al. protective