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Stochastic model predictive braking control for heavy-duty commercial vehicles during uncertain brake pressure and road profile conditions

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Control Theory and Technology 2022年第2期20卷 248-262页

作者： Ryota Nakahara Kazuma Sekiguchi Kenichiro Nonaka Masahiro takasugi Hiroki Hasebe Kenichi Matsubara Graduate School of Integrative Science and Engineering Tokyo City UniversityTamazutsumiSetagaya-kuTokyo 1588557Japan Nabtesco Automotive Co. Ltd.HirakawachoChiyoda-kuTokyo 1020093Japan

When heavy-duty commercial vehicles(HDCVs)must engage in emergency braking,uncertain conditions such as the brake pressure and road profile variations will inevitably affect braking *** minimize these uncertainties,we propose a combined longitudinal and lateral controller method based on stochastic model predictive control(SMPC)that is achieved via Chebyshev–Cantelli *** our method,SMPC calculates braking control inputs based on a finite time prediction that is achieved by solving stochastic programming elements,including chance *** accomplish this,SMPC explicitly describes the probabilistic uncertainties to be used when designing a robust control *** main contribution of this paper is the proposal of a braking control formulation that is robust against probabilistic friction circle uncertainty *** specifically,the use of Chebyshev–Cantelli inequality suppresses road profile influences,which have characteristics that are different from the Gaussian distribution,thereby improving both braking robustness and control performance against statistical ***,since the Kalman filtering(KF)algorithm is used to obtain the expectation and covariance used for calculating deterministic transformed chance constraints,the SMPC is reformulated as a KF embedded deterministic ***,the effectiveness of our proposed method is verified via a MATLAB/Simulink and TruckSim co-simulation.

关键词： Heavy-duty commercial vehicle Brake system Stochastic model predictive control Road profile

Self-contraction process and hot spot formation in the SHOTGUN III-U divergent gas-puff Z pinch

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Matter and Radiation at Extremes 2020年第4期5卷 10-15页

作者： Keiichi takasugi Mineyuki Nishio Institute of Quantum Science Nihon UniversityTokyo 101-8308Japan Anan College National Institute of TechnologyTokushima 774-0017Japan

A divergent gas-puff Z pinch has been devised for the realization of an efficient soft x-ray point *** this device,a divergent hollow annular gas puff is ejected outward from the surface of the inner electrode,and the plasma is compressed three-dimensionally to generate a soft x-ray point *** the SHOTGUN III-U device at Nihon University,the power supply was enhanced,and experiments were conducted over a larger current *** peak current at the charging voltage of−25 kV was−190 *** was used as the discharge *** self-contraction process of the plasma was investigated in detail using a gated *** the peak current,local contraction occurred in front of the inner *** contraction velocity of the plasma was 5.53×10^(4)m/*** the plasma contracted,the discharge current *** energy input was analyzed by induction *** net input energy was found to be 750 J,which corresponded to 13.3%of the stored energy of the capacitor,5630 *** soft x-ray source was observed using a soft x-ray CCD camera.A point source was observed 7mmin front of the inner *** size of the source was 35μm in the axial direction and 14μm in the radial direction.

关键词： contraction process realization

Correlation of prefrontal activity measured by near-infrared spectroscopy (NIRS) with mood, BDNF genotype and serum BDNF level in healthy individuals

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Open Journal of Psychiatry 2012年第3期2卷 194-203页

作者： Daisuke Matsuzawa Kotaro Takeda Hiroyuki Ohtsuka Jun takasugi Takashi Watanabe Junko Maeda Saeka Nagakubo Chihiro Sutoh Ichiro Shimoyama Ken Nakazawa Eiji Shimizu Clinical Research Center National Hospital Organization Murayama Medical Center Tokyo Japan Department of Cognitive Behavior Physiology Graduate School of Medicine Chiba University Chiba Japan Section for Human Neurophysiology Frontier Medical Engineering Chiba University Chiba Japan

Depression has been known to reduce the prefrontal activity associated with the execution of certain cognitive tasks, although whether a temporarily depressed or anxious mood in healthy individuals affects the prefrontal blood oxygen level during cognitive tasks is unknown. Combining the measurement of prefrontal activity with near-infrared spectroscopy (NIRS) and the two cognitive tasks, namely the letter version of the verbal fluency test (VFT-l) and the Stroop test, we measured the effect of a depressed or anxious mood and gender on the changes in the prefrontal oxygenated hemoglobin (Oxy-Hb) levels during those cognitive tests in healthy individuals. Depressed mood or anxious mood was assessed by the Hospital Anxiety and Depression Scale (HADS). Thereby we aimed to explore the possibility of NIRS measurement for detecting the early subclinical manifestation of major depression. Moreover, we examined the possible relationships between prefrontal activation and the functional Val66Met polymorphisms of the brain derived neurotropic factor (BDNF) gene and serum BDNF level. As a result, the increased prefrontal Oxy-Hb levels during cognitive tasks were significantly correlated with the severity of depressed mood in males. The course of the prefrontal Oxy-Hb increase was different depending on the cognitive tasks, i.e., the VFT-l or the Stroop test, in both genders. Correlations of BDNF genotype and serum BDNF level with the prefrontal Oxy-Hb levels during those cognitive tasks were negative. Our results suggest that the early subclinical manifestation of depressed mood in males might be detected by the NIRS measurement, which is not correlated with the individual properties of BDNF.

关键词： Near-Infrared Spectroscopy (NIRS) Depression Anxiety Brain Derived Neurotropic Factor (BDNF)

Fontan患者的功能状态与神经激素和心脏自主神经活动异常基本无关

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世界核心医学期刊文摘（心脏病学分册） 2005年第3期1卷 37-38页

作者： Ohuchi H. takasugi H. Ohashi H. 腾增辉 Physiological Imaging Laboratory Mayo Clinic 200 1st St SW Rochester MN 55905 United States Dr.

Background-Impaired cardiac autonomic nervous activities and increased neurohumoral activities(CANA, NHA) characterize Fontan patients. However, the clinical significance of these changes is not clearly understood. Our purpose was to clarify the clinical significance of the CANA and NHA in stable Fontan patients. Methods and Results-We divided 22 atriopulmonary connection(APC) and 75 total cavopulmonary connection(TCPC) patients into 4 subgroups according to New York Heart Association (NYHA) class (1.8±0.6) and measured various CANA and NHA indices. All NHA indices were elevated in the symptomatic patients(P < 0.001).Natriuretic peptideswere higher in the APC than in the TCPC patients, and the hemodynamics showed no correlation with brain natriuretic peptide in the APC patients. Low arterial oxygen saturation and impaired hemodynamics greatly influenced all elevated NHA indices (P< 0.01), except for plasma renin activity, in the TCPC patients. Impaired CANA indices did not relate to NYHA class, although surgeries were associated with lower heart rate variability. In addition to poor correlation between NHA and CANA, age and ventricular morphology had no impact on all CANA and NHA indices, except for high norepinephrine in right ventricular Fontan patients. Conclusions-Although symptomatic Fontan patients exhibit higher NHA, CANA is not related to either NYHA class or NHA. APC itself is responsible for higher natriuretic peptides, and arterial oxygen desaturation has a great impact on elevated NHA in the TCPC patients. These characteristics of the NHA and CANA differ from those of heart failure patients with biventricular physiology.

关键词：神经激素 Fontan 心脏自主神经活动异常利尿肽血流动力学心律变异性血浆肾素活性心脏协会双心室

Histopathological confirmation of similar intramucosal distribution of fluorescein in both intravenous administration and local mucosal application for probebased confocal laser endomicroscopy of the normal stomach

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World Journal of Clinical Cases 2015年第12期3卷 993-999页

作者： Kouichi Nonaka Ken Ohata Shinichi Ban Shin Ichihara Rumi takasugi Yohei Minato Tomoaki Tashima Yasushi Matsuyama Maiko Takita Nobuyuki Matsuhashi Helmut Neumann Department of Gastroenterology NTT Medical Center Tokyo Department of Pathology Dokkyo Medical University Koshigaya Hospital Department of Pathology Sapporo-Kosei General Hospital Division of Technical Service Department of Medicine 1 University of Erlangen-Nuremberg

Probe-based confocal laser endomicroscopy(p CLE) is capable of acquiring in vivo magnified cross-section images of the gastric mucosa. Intravenous injection of fluorescein sodium is used for confocal imaging. However, it is still under debate if local administration of the dye to the mucosa is also effective for confocal imaging as it is not yet clear if topical application also reveals the intramucosal distribution of fluorescein. The objective of this study was to evaluate the intramucosal distribution of fluorescein sodium after topical application and to compare the distribution to the conventional intravenous injection used for confocal imaging. p CLE of the stomach uninfected with Helicobacter pylori was performed in a healthy male employing intravenous administration and local mucosal application of fluorescein. The mucosa of the lower gastric body was biopsied 1 min and 5 min after intravenous administration or local mucosal application of fluorescein, and the distribution of fluorescein in the biopsy samples was examined histologically. Green fluorescence was already observed in the cytoplasm of fundic glandular cells in the biopsied deep mucosa 1 min after local mucosal application of fluorescein. It was also observed in the foveolar lumen and inter-foveolar lamina propria, although it was noted at only a few sites. In the tissue biopsied 5 min after the local mucosal application of fluorescein, green fluorescence was more frequently noted in the cytoplasm of fundic glandular cells than in that 1 min after the local mucosal application of fluorescein, although obvious green fluorescence was not identified in the foveolar lumen or inter-foveolar lamina propria. The distribution of intravenously administered fluorescein in the cytoplasm of fundic glandular cells was also clearly observed similarly to that after local mucosal application of fluorescein. Green fluorescence in more cells was observed in many cells 5 min after intravenous administration compared

关键词： Confocal laser endomicroscopy Fluorescein Local application Intravenous Distribution

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日本地源热泵利用的可行性研究

水文地质工程地质技术方法动态 2007年第2期 28-33页

作者： Shinji takasugi Tsukashi Akazawa Takashi Okumura Mineyuki Hanano 赵玉军（翻译）苑惠明（校对） JMC Geothermal Engineering Co. Ltd.8-4 Koami-cho Nihonbashi Chuo-ku Tokyo.103-0016 Japan Japan Metals and Chemicals Co. Ltd. 8-4Koami-cho Nihonbashi Chuo-kuTokyo. 103-0016 Japan 不详

在过去，低位地热资源的潜力并没有得到开发。然而，由于低位地热资源地域广阔（能量以不同温度形式存在），经评估，低位地热资源的储量是巨大的。因此，为了减少二氧化碳的释放量（引起全球变暖的主要原因，全球变暖是美国能源和环境... 详细信息

在过去，低位地热资源的潜力并没有得到开发。然而，由于低位地热资源地域广阔（能量以不同温度形式存在），经评估，低位地热资源的储量是巨大的。因此，为了减少二氧化碳的释放量（引起全球变暖的主要原因，全球变暖是美国能源和环境保护局提出的人类面临的最严重问题之一），这种未被开发的能源的利用引起人们极大兴趣。本项可行性研究的目的是，对影响地源热泵系统推广和普遍应用的有关成本、技术和方法等不同方面的问题，进行了调查研究。该调查研究是通过搜集地源热泵相关文献、随机抽查结果、讨论会和专家组的相关信息而开展的。

关键词：地源热泵系统日本地热资源全球变暖环境保护局二氧化碳抽查结果相关信息

Present Status of NIRS ECR Ion Sources

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Chinese Physics C 2007年第S1期31卷 60-62页

作者： M.Muramatsu A.Kitagawa Y.Iwata K.Yamamoto H.Ogawa S.Hojo Y.Sakamoto T.Honma W.takasugi M.Wakaisami Y.Yoshida T.Kubo Y.Kato S.Biri A.G.Drentje Graduate school of Engineering Toyo UniversityJapan National Institute of Radiological Sciences4-9-1 AnagawaInageChiba 263-8555Japan National Institute of Radiological Sciences 4-9-1 AnagawaInageChiba 263-8555Japan Accelerator Engineering Corporation Ltd.2-13-I KonakadaiInageChiba 263-0043Japan Department of Mechanical Engineering Toyo University2100 KujiraiKawagoeSaitarna 350-0815Japan Osaka University 2-1 Yamada-okaSuitaOsaka 565-0871Japan Institute of Nuclear Research (ATOMKI) H-4026 DebrecenBen ter 18/cHungary National Institute of Radiological Sciences 4-9-1 AnagawaInageChiba 263-8555Japan K.V.I.University of GroningenZernikelaan 259747AA GroningenNetherlands

Four ECR ion sources have been operated in National Institute of Radiological Sciences(NIRS). Two ECR ion sources supply various ion species for the Heavy Ion Medical Accelerator in Chiba(HIMAC). The 10GHz NIRS-ECR ion source mainly produces C^(2+) ions for the heavy-ion *** of Si,Ar,Fe,Kr and Xe are usually produced by the 18GHz NIRS-HEC ion source for physical and biological *** other two compact ECR ion sources with all permanent magnet configuration have been developed for the new generation carbon therapy *** of these,the Kei-source,is a prototype which has been installed to the NIRS-930 cyclotron for axial *** other source,Kei2-source,is a demonstration source and utilized for the new generation *** addition,both Kei sources have been used to study fundamental properties. In this paper,present status of the ion sources and recent developments are reported.

关键词： heavy ion therapy ECR

船用发动机有害排放气体的评价及处理研究──燃料性质和输出轴扭矩变化对发动机排放特性的影响

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内燃机学报 2000年第1期18卷 33-39页

作者：张洁高杉喜雄菊地正晃桑原孙四郎西尾澄人石村惠以子中岛康晴盐出敬二郎山谷周二西川和美日本国运输省船舶技术研究所机关动力部船舶技术研究所材料加工部

为了评价船用发动机有害气体的排放，本文从燃料的性质着手，较为详细地对不同性质的１３种燃料进行了研究，并在一台中型四冲程船用柴油机上进行了试验，测定了各种有害排气的浓度、发动机的性能和燃烧特性，对燃料的性质与排放之间... 详细信息

为了评价船用发动机有害气体的排放，本文从燃料的性质着手，较为详细地对不同性质的１３种燃料进行了研究，并在一台中型四冲程船用柴油机上进行了试验，测定了各种有害排气的浓度、发动机的性能和燃烧特性，对燃料的性质与排放之间的相关性进行了探讨。进一步调查研究了柴油机运转工况的不同及输出轴扭矩的变化对ＮＯｘ排放的影响。由试验结果可知：对于周期性输出扭矩的变化，ＮＯｘ的排放也发生周期性的变化。但是，柴油机在高输出区域运转时，随着扭矩增加所换算的ＮＯｘ浓度呈减小的趋势；反之，在低输出区域运转时，呈增加的趋势；输出扭矩周期性变化时的ＮＯｘ。的浓度可以用与其相对应的平均负荷状态的ＮＯｘ浓度处理。

关键词：船用柴油机有害排气 A重油 C重油氮氧化物

船用柴油机NO_x等有害排放气体的评价及处理研究——燃料喷射系统对乳化燃料在船用柴油机上使用的影响及脱硝装置的适用性

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内燃机学报 2000年第4期18卷 380-386页

作者：张洁高杉喜雄菊池正晃桑原孙四郎西尾澄人石村惠以子中岛康晴盐出敬二郎山谷周二西川和美日本国运输省船舶技术研究所机关动力部船舶技术研究所材料加工部

对原试验用柴油机的燃料喷射系统进行了改造。改造后的燃料喷射系统不仅可降低 NOx 的排放 ,而且使高加水率乳化燃料的使用成为可能。但另一方面 ,在低负荷时 ,使用乳化燃料不但不能获得预期的降低 NOx 排放效果 ,反而使其它有害排放增... 详细信息

对原试验用柴油机的燃料喷射系统进行了改造。改造后的燃料喷射系统不仅可降低 NOx 的排放 ,而且使高加水率乳化燃料的使用成为可能。但另一方面 ,在低负荷时 ,使用乳化燃料不但不能获得预期的降低 NOx 排放效果 ,反而使其它有害排放增加。所以 ,也对降低 NOx 排放方法之一的脱硝装置进行了探讨 ,对其在船用柴油机上的适用性进行了试验。

关键词：燃料喷射系统船用柴油机乳化燃料排气污染