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Open Journal of Radiology 2018年第4期8卷 244-259页

作者： Yoshifumi Sone Junichi Hata Yasushi Sera k.tsuya maruyama Thomas Benk.rt Zhouchen Lu Jun k.sahara Hideyuk. Ok.no Morio Matsumoto Masaya Nak.mura Daisuk. Nak.shima Tak.o Nagura Medical Scanning Tok.o Tokyo Japan Central Institute for Experimental Animals Kanagawa Japan Department of Physiology Keio University School of Medicine Tokyo Japan Rik.n Brain Science Institute Saitama Japan Institute for Integrated Sports Medicine Keio University School of Medicine Tokyo Japan MR Research & Collaboration Department Diagnostic Imaging Business Area Siemens Healthcare K.K. Tokyo Japan Siemens Healthcare GmbH Erlangen Germany Department of Orthopaedic Surgery Keio University School of Medicine Tokyo Japan

Purpose: This study aimed to examine whether the signal-to-noise ratio (SNR) could be increased by combining integrated slice-by-slice shimming (iShim) with a fat suppression (FS) method other than short-tau inversion recovery (STIR) in diffusion-weighted imaging (DWI) and q-space imaging (qsi). Methods: We acquired DWI images (b-values: 0 and nine steps from 400 to 10,000 s/mm2 for six axes) using a prototypical single-shot echo planar imaging sequence by combining two types of shimming (3D Shim and iShim) and two types of FS (STIR and water excitation [WE]) in 10 volunteers. In the DWI study, the SNR for each b-value, FS effect in the b0 image, and distortion in the added image (b0 - b10,000) were evaluated for the above-mentioned four imaging methods. qsi involved original DWI images. In the qsi study, the SNR was evaluated. Results: With regard to both 3D Shim and iShim, the SNRs were significantly higher when using WE than when using STIR in b0 - b900 images (p Conclusion: The combination of iShim and WE has a high SNR on qsi.

关键词： iShim Fat Suppression Water Excitation Diffusion-Weighted Imaging q-Space Imaging (qsi)

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含水气溶胶颗粒蒸发及其耦合输运模拟

工程热物理学报 2022年第9期43卷 2404-2408页

作者：曾港陈林袁海专山本歩圆山重直中国科学院工程热物理研究所北京100190 湘潭大学数学与计算科学学院湘潭411105 中国科学院大学北京100049 日本八户工业高等专门学校八户039-1192

新冠病毒及其变种肆虐全球使人们对气溶胶的输运机制产生了浓厚的科学兴趣。本研究考虑盐分等固态成分提出了一种新的蒸发模型用于模拟人体呼吸、咳嗽和打喷嚏引起的唾液形成含水气溶胶扩散、蒸发行为。模型考虑了含水气溶胶表面蒸发过... 详细信息

新冠病毒及其变种肆虐全球使人们对气溶胶的输运机制产生了浓厚的科学兴趣。本研究考虑盐分等固态成分提出了一种新的蒸发模型用于模拟人体呼吸、咳嗽和打喷嚏引起的唾液形成含水气溶胶扩散、蒸发行为。模型考虑了含水气溶胶表面蒸发过程,并耦合液滴动力学方程、加入流动阻力与重力、类液滴尺寸和初始速度等影响因子,研究了不同环境温度、相对湿度及相对风速等对含水气溶胶运动迁移行为的影响机制。对于单个液滴,结果不仅表明液滴尺寸越大,悬浮在空气中的时间越长;湿度越低、温度越高,液滴的蒸发速率越快。

关键词：气溶胶多相流模型耦合输运数值模型

Why is endosonography insufficient for residual diagnosis after neoadjuvant therapy for esophageal cancer?Solutions using muscle layer evaluation

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World Journal of Gastrointestinal Endoscopy 2022年第5期14卷 320-334页

作者： Shohei Yonemoto Masaya Uesato Ak.ra Nak.no k.ntaro Murak.mi Tak.shi Toyozumi Tetsuro maruyama Hiroshi Suito Tomohide Tamachi Manami k.to Shunsuk. k.inuma k.isuk. Matsusak. Hisahiro Matsubara Frontier Surgery Graduate School of MedicineChiba UniversityChiba 260-8670Japan

BACk.ROUND The diagnosis of residual tumors using endoscopic ultrasound(EUS)after neoadjuvant therapy for esophageal cancer is considered ***,the reasons for this difficulty are not well *** To investigate the ultrasound imaging features of residual tumors and identify the limitations and potential of *** This exploratory prospective observational study enrolled 23 esophageal squamous cell carcinoma patients receiving esophagectomy after neoadjuvant therapy[15 patients after neoadjuvant chemotherapy(NAC)and 8 patients after chemoradiotherapy(CRT)]at the Department of Surgery,Chiba University Hospital,between May 2020 and October *** diagnosed the T stage for specimens using ultrasound just after surgery and compared ultrasound images with the cut surface of the fixed specimens of the same level of residual *** ratio of esophageal muscle layer defect measured by ultrasound was compared with clinicopathological ***,the rate of reduction for the muscle layer defect was evaluated using EUS images obtained before and after neoadjuvant *** The accuracy of T stage rate was 61%(n=14/23),which worsened after CRT(38%,n=3/8)than after NAC(73%,n=11/15)because of ***,pT0 could not be diagnosed in all *** detection rate of residual tumor for specimens using ultrasound retrospectively was 75%(n=15/20).There was no correlation between after-NAC(79%,n=11/14)and after-CRT(67%,n=4/6)detection *** detection of superficial and submucosal types was *** pathologic tumor size and pathological response were *** borders were irregular and echogenicity was mixed type after *** was a correlation between the pT stage(pT0/1 vs pT2/3)and the length of muscle layer circumference(P=0.025),the length of muscle layer defect(P<0.001),and the ratio of muscle layer defect(P<0.001).There was also a correlation between the pT stage and the rate of muscle layer defect reduction measu

关键词： Esophageal cancer Esophageal squamous cell carcinoma Neoadjuvant therapy Endoscopic ultrasound Residual tumor Endosonography

Unusual nonribosomal peptide synthetase involved in the biosynthesis of a classic antibiotic,Streptothricine

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Unusual nonribosomal peptide synthetase involved in the bios...

稻田灌溉的特点和效率——论日本灌溉系统的发展与灌溉效率递减

The 12th Japan-China-k.rea Joint Symposium on Enzyme Engineering

作者： Chitose maruyama Junya Toyoda Yasuo k.to Miho Izumik.wa Motok. Tak.gi k.zuo Shin-ya Hajime k.tano Tak.shi Utagawa Yoshimitsu Hamano Department of Bioscience Fukui Prefectural University Department of Biotechnology Toyama Prefectural University

＜正＞Introduction Streptothricins（STs）are traditional antibiotics produced by Streptomyces bacteria that contain L-β-lysine oligopeptides（1-7residues）in their chemical structures（1）.STs inhibit protein biosynthesis in prok.ryotic cells,and strongly inhibit the growth of euk.ryotes such as yeasts,fungi,protozoa,insects,and *** are used as effective selective agents for recombinant DNA work.in some of these organisms;however,they are not currently

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灌溉排水 1990年第1期9卷 54-57,53页

作者： T.Watanabe T.maruyama A.Yomota 赵育民

稻田灌溉和旱地灌溉相比较具有很多用水特点,本文结合日本的具体情况对这些特点和不同的效率进行讨论。很明显,从稻田渗透和地表排水方面来看,如按I.C.I.D.标准计算,稻田灌溉的效率是很低的,不能和旱地相比。在日本注意到一种有趣的趋势... 详细信息

稻田灌溉和旱地灌溉相比较具有很多用水特点,本文结合日本的具体情况对这些特点和不同的效率进行讨论。很明显,从稻田渗透和地表排水方面来看,如按I.C.I.D.标准计算,稻田灌溉的效率是很低的,不能和旱地相比。在日本注意到一种有趣的趋势,即灌溉的发展和农田的联并引起了灌溉效率的降低。

关键词：日本稻田灌溉系统灌溉效率

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数码航空影像在建筑物震害信息提取中的应用

地壳构造与地壳应力 2010年第2期 13-19页

作者： Fumio Yamazak. Daisuk. Suzuk. Yoshihisa maruyama 安立强（翻译）焦其松（校对） Department of Urban Environment Systems Chiba University Japan 不详

近几年被引入到航空摄影的数码航空相机,其辐射分辨率比传统的胶片航空相机高很多。因此,即使空间分辨率在同一水平,数码航空相机也能比胶片相机获取更清晰的地面影像。本文重点强调数码航空相机探测多种地震灾害的能力。数码航空相机... 详细信息

近几年被引入到航空摄影的数码航空相机,其辐射分辨率比传统的胶片航空相机高很多。因此,即使空间分辨率在同一水平,数码航空相机也能比胶片相机获取更清晰的地面影像。本文重点强调数码航空相机探测多种地震灾害的能力。数码航空相机、模拟航空相机和高分辨率卫星影像拍摄到了最近日本发生的几次地震的受灾地区,如2004年新泻中越地震和2007年新泻中越冲地震。本文首先进行了数码航空影像与扫描式模拟照片质量间的对比。然后对2007年新泻中越冲地震震前、震后拍摄的数码航空影像,应用了基于像元与基于对象两种分类方法提取出建筑破坏信息。经过一系列的数字图像处理后,倒塌建筑物的瓦砾被准确地提取出来。

关键词：信息提取航空影像建筑物数码应用高分辨率卫星影像航空相机地震灾害

中国苏北预先导孔CCSD—PP2片麻岩石锆石的矿物包裹体及其超高压变质作用的证据

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科学通报 2001年第3期46卷 241-246页

作者：刘福来 maruyama.,s 中国地质科学院地质研究所北京100037 DepartmentofEarthandPlanetaryScience TokyoInstituteofTechnology

采用激光Raman及阴极发光技术，确认中国大陆科学钻探工程预选预先导孔CCSD－PP2几乎所有类型片麻岩中的锆石均保存典型的柯石英包体以及绿辉石、硬玉、石榴石、多硅白云母等矿物包体，表明片麻岩类岩石曾普遍经历了超高压变质作用，该... 详细信息

采用激光Raman及阴极发光技术，确认中国大陆科学钻探工程预选预先导孔CCSD－PP2几乎所有类型片麻岩中的锆石均保存典型的柯石英包体以及绿辉石、硬玉、石榴石、多硅白云母等矿物包体，表明片麻岩类岩石曾普遍经历了超高压变质作用，该成果对于重新探讨苏鲁超高压变质带的俯冲－折返机制和对中国大陆科学钻探工程的选址有重要的科学意义。

关键词：柯石英锆石阴极发光片麻岩预先导孔CCSD-PP2 中国苏北钻探工程矿物包裹体超高压变质作用

High efficiency HITTM Solar Cells and the Effects of Open Circuit Voltage on Temperature Coefficients

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High efficiency HITTM Solar Cells and the Effects of Open Ci...

Successful resection of metachronous para-aortic, Virchow lymph node and liver metastatic recurrence of rectal cancer

第十五届国际光伏科学与工程大会

作者： Ak.ra Terak.wa Toshio Asaumi Shinji k.bayashi Yasufumi Tsunomura Toshio Yagiura Mik.o Taguchi Yuk.hiro Yoshimine Hitoshi Sak.ta Eiji maruyama Mak.to Tanak. Advanced Energy Research Center Sanyo Electric Co. Ltd.7-3-2 Ibuk.dai-higashimachi Nishi-k. k.be Hyogo 651-2242 Japan

We have established a new record conversion efficiency of 21.5% for HIT solar cell (Voc: 712mV, Jsc: 38.26mA/cm2, FF: 0.787, 100.3cm2, measured at AIST). Also worthy of special mentions are the very high fill factor (FF) of 0.802 and the very high open circuit voltage (Voc) of over 725mV for other efficient solar cells. Additional practical advantage of the HIT cells is the relatively small temperature coefficients, which is another practical advantage of the HIT cell. The insight of the small temperature coefficients is also discussed by comparing other solar cells.

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World Journal of Gastroenterology 2015年第44期21卷 12722-12728页

作者： Nobuyoshi Tak.shita Toru Fuk.naga Masayuk. k.mura Yuji Sugamoto k.ntaro Tasak. Isamu Hoshino Tak.mi Ota Tetsuro maruyama Tomohide Tamachi Tak.shi Hosok.wa Yo Asai Hisahiro Matsubara Department of Surgery Numazu City Hospital Department of Frontier Surgery Chiba University Graduate School of Medicine

A 66-year-old female presented with the main complaint of defecation trouble and abdominal distention. With diagnosis of rectal cancer, c SS, c N0, c H0, c P0, c M0 c Stage Ⅱ, Hartmann's operation with D3 lymph node dissection was performed and a para-aortic lymph node and a disseminated node near the primary tumor were resected. Histological examination showed moderately differentiated adenocarcinoma, p SS, p N3, p H0, p P1, p M1(para-aortic lymph node, dissemination) f Stage Ⅳ. After the operation, the patient received chemotherapy with FOLFIRI regimen. After 12 cycles of FOLFIRI regimen, computed tomography(CT) detected an 11 mm of liver metastasis in the posteroinferior segment of right hepatic lobe. With diagnosis of liver metastatic recurrence, we performed partial hepatectomy. Histological examination revealed moderately differentiated adenocarcinoma as a metastatic rectal cancer with cut end microscopically positive. After the second operation, the patient received chemotherapy with TS1 alone for 2 years. Ten months after the break. CT detected a 20 mm of paraaortic lymph node metastasis and a 10 mm of lymph node metastasis at the hepato-duodenal ligament. With diagnosis of lymph node metastatic recurrences, we performed lymph node dissection. Histological examination revealed moderately differentiated adenocarcinoma as metastatic rectal cancer in paraaortic and hepato-duodenal ligament areas. After the third operation, we started chemotherapy with modified FOLFOX6 regimen. After 2 cycles of modified FOLFOX6 regimen, due to the onset of neutropenia and liver dysfunction, we switched to capecitabine aloneand continued it for 6 mo and then stopped. Eleven months after the break. CT detected two swelling 12 mm of lymph nodes at the left supraclavicular region. With diagnosis of Virchow lymph node metastatic recurrence, we started chemotherapy with capecitabine plus bevacizumab regimen. Due to the onset of neutropenia and hand foot syndrome(Grade 3), we managed

关键词： Rectal cancer Surgical resection Virchow lymph nod