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具有生产时滞的马克思增长模型

政治经济学季刊 2021年第1期4卷 16-28页

作者：浅田统一郎松本昭夫费伦斯·齐达罗夫斯基夏锦清(译) 裴宏(校) 日本中央大学匈牙利佩奇大学清华大学社会科学学院经济学研究所福州大学经济与管理学院

在本研究中我们论证了,在一个包含消费品部门和投资品部门的马克思增长模型中,国民收入产生持续波动的可能性。本文展示了三个主要结果:首先,确认了稳态的存在;其次,加入了"污染效应"的离散时间动态模型会产生或简单或复杂的动态现象;最... 详细信息

在本研究中我们论证了,在一个包含消费品部门和投资品部门的马克思增长模型中,国民收入产生持续波动的可能性。本文展示了三个主要结果:首先,确认了稳态的存在;其次,加入了"污染效应"的离散时间动态模型会产生或简单或复杂的动态现象;最后,包含生产时滞的连续时间动态模型会产生或规则或不规则的动态现象。这些结果说明,包含非线性和生产时滞的马克思增长模型可以解释许多经济变量的动态现象。

关键词：马克思增长模型污染效应生产时滞复杂动态离散时间动态连续时间动态

Intercross real-time control strategy in alternating activated sludge process for short-cut biological nitrogen removal treating domestic wastewater

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Journal of Environmental Sciences 2008年第8期20卷 957-963页

作者： akio TAKIGAWA Department of Civil and Environmental Engineering Maebashi Institute of Technology 460-1Kamisatory-choMaebashiGunma 371-0816Japan

To develop technically feasible and economically favorable dynamic process control(DPC)strategies for an alternating activated sludge(AAS)system,a bench-scale continuous-flow alternating aerobic and anoxic reactor,performing short-cut nitrogen removal from real domestic wastewater was operated under different control strategies for more than five months.A fixed-time control(FTC) study showed that bending-points on pH and oxidation-reduction potential(ORP)profiles accurately coincided with the major biologic...

关键词： alternating activated sludge process continuous-flow real-time control nitrification

Culm form analysis for bamboo, Phyllostachys pubescens

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Journal of Forestry Research 2013年第3期24卷 525-530页

作者： akio Inoue Laboratory of Forest Ecology Faculty of Environmental and Symbiotic Sciences Prefectural University of KumamotoKumamoto 862-8502 Japan

We investigated the culm form for one of the largest bamboo species, Phyllostachys pubescens Mazel ex Houz. in relation to the me- chanical constraint principles, i.e., elastic, stress and geometric similarity. The fine-resolution analysis of the culm taper indicated that the culm for P. pubescens consisted of three or four segments with various forms, except for the butt swell. This implied that the taper of the whole culm for P. pubescens could be expressed by neither of these principles. The regression slope between culm height and diameter at breast height on the double logarithmic coordinates was 0.629, which was significantly different from the values predicted from these principles. In conclusion, none of these mechanical constraint principles can express the culm taper and height-diameter relationship, and there may be a need for a more complicated model to express the culm form for P. pubescens.

关键词： culm taper fine-resolution analysis height-diameter rela-tionship mechanical constraint principle Phyllostachys pubescens

Synthesis and characteristics of transparent Gd_(2)O_(3)ceramics with cubic structure

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Journal of Advanced Ceramics 2024年第4期13卷 463-468页

作者： akio Ikesue Yan Lin Aung World Lab Co. Nagoya456-8587Japan

Transparent Gd_(2)O_(3)ceramics with a cubic crystal structure were successfully synthesized for the first *** Gd_(2)O_(3)ceramics subjected to hot isostatic press(HIP)at 1070℃consisted of uniform grains of 2-3μm,and only a few residual pores could be detected inside the materials.X-ray diffraction(XRD)shows that the obtained polycrystalline materials have a cubic crystal structure,and the transmission polarized light observation shows that there is no birefringence inside the materials,indicating inherent optical properties of the cubic crystal *** optical absorption edge is 640 nm(optical band gap:2.1 eV),and the transmittance in the visible to near-infrared region is 72%,which is close to the theoretical transmittance calculated from Fresnel *** constant of this material is almost wavelength-independent,and it is diamagnetic since it has the opposite polarity to that of common paramagnetic materials.

关键词： gadolinium oxide cubic hot isostatic press(HiP) diamagnetic Verdet constant

Anisotropic alumina ceramics with isotropic optical properties

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Journal of Advanced Ceramics 2023年第1期12卷 72-81页

作者： akio IKESUE Yan Lin AUNG World Lab.Co. Ltd.Nagoya 456-8587Japan

Excellent mechanical and isotropic optical properties are achieved simultaneously from fully dense polycrystalline advanced alumina ceramics with a hexagonal crystal structure,which are optically anisotropic.A small amount(240 ppm)of ZrO_(2) additive is used to synthesize the transparent alumina ceramics with an average grain size of 0.7µm,and locally detected optical distortion(birefringence)is extremely minimized,less than 20 nm/*** transmittance(86%)of the alumina ceramics(thickness=0.3 mm)in ultraviolet(UV)to infrared(IR)regions is similar to that of commercial c-axis sapphire single crystals produced by Czochralski(CZ)method,while the extinction ratio in the visible wavelength area is over 25 *** glass and the c-axis sapphire single crystals,the alumina ceramics can clearly display texts and images on liquid crystal display(LCD)screens.A grain boundary phase of nano-sized Al_(2)O_(3)-ZrO_(2) composition(amorphous)is formed at the grain boundary of the advanced alumina ceramics,which enhances four-point bending strength and fracture toughness(KIC)simultaneously to 921 MPa and 6.8 MPa·m^(0.5),respectively,and hence the mechanical properties are superior to those of the sapphire single crystals.

关键词： alumina anisotropy isotropy fracture toughness(KIC) optical ceramics grain boundary phase

Progress in reducing AC magnetization losses of Bi2223/Ag tapes by introducing interfilamentary oxide barriers

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Progress in Natural Science:Materials International 2010年第1期20卷 104-110页

作者： Ryoji INADA akio OOTA Toyohashi University of Technology 1-1 HibarigaokaTempaku-choToyohashiAichi 441-8580Japan

This paper presents our recent progress for the development of low-loss Bi2223/Ag tapes with interfilamentary oxide *** the compatibility with Bi2223 superconductors,SrZrO3was selected as barrier ***,small amount of Bi2212 was mixed with SrZrO3to improve its ductility for cold *** controlling the thickness of barrier layers among the filaments,reducing the tape width（<3 mm）and twisting the filaments tightly（<5 mm in twist pitch lengths）,coupling frequency fcexceeded 250 Hz even in an AC perpendicular field at *** Jcof the barrier tapes with tightly twisted filaments was in the range of 12-15 kA/cm2at 77 K and *** 50 mT and 50 Hz,the twisted barrier tapes showed 60%-70%lower perpendicular field losses than the conventional 4 mm-width tape with fully coupled filaments.

关键词： Bi2223 tapes interfilamentary oxide barriers filament twisting magnetization losses coupling frequency

Characteristic of Local Boiling Heat Transfer of Ammonia and Ammonia/Water Binary Mixture on the Plate Type Evaporator

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Journal of Thermal Science 2011年第4期20卷 332-342页

作者： akio OKAMOTO Hirofumi ARIMA Yasuyuki IKEGAMI Titanium Division KOBE STEEL Ltd.Japan Institute of Ocean Energy Saga UniversityJapan

Power generation using small temperature difference such as ocean thermal energy conversion(OTEC)and discharged thermal energy conversion(DTEC)is expected to be the countermeasures against global warming *** ammonia and ammonia/water are used in evaporators for OTEC and DTEC as working fluids,the research of their local boiling heat transfer is important for improvement of the power generation *** of local boiling heat transfer coefficients were performed for ammonia/water mixture(z=0.9-1)on a vertical flat plate heat exchanger in a range of mass flux(7.5-15 kg/m2s),heat flux(15-23 kW/m 2),and pressure(0.7-0.9 MPa).The result shows that in the case of ammonia/water mixture,the local heat transfer coefficients increase with an increase of mass flux and composition of ammonia,and decrease with an increase of heat flux.

关键词： Local Heat Transfer Ammonia/Water Mixture Plate Type Evaporator OTEC

Recurrent chromosomal rearrangements at bands 8q24 and 11q13 in gastric cancer as detected by multicolor spectral karyotyping

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World Journal of Gastroenterology 2005年第33期11卷 5129-5135页

作者： Yasuhide Yamashita Kazuhiro Nishida Takashi Okuda Kenichi Nomura Yosuke matsumoto Shoji Mitsufuji Shigeo Horiike Hiroyuki Hata Chohei Sakakura akio Hagiwara Hisakazu Yamagishi Masafumi Taniwaki Department of Gastroenterology and Hepatology Kyoto Prefectural University of Medicine Kyoto 602-8566 Japan Department of Hematology and Oncology Kyoto Prefectural University of Medicine Kyoto 602-8566 Japan Second Department of Internal Medicine Kumamoto University School of Medicine Kumamoto 860-8555 Japan Department of Digestive Surgery Kyoto Prefectural University of Medicine Kyoto 602-8566 Japan Department of Clinical Molecular Genetics and Laboratory Medicine Kyoto Prefectural University of Medicine Kyoto 602-8566 Japan

AIM: To identify chromosomal translocations specific to gastric cancer (GC), spectral karyotyping (SKY) analysis was performed on established cell lines and cancerous ascitic ***: SKY analysis of 10 established cell lines and seven cancerous ascitic fluid samples identified recurrent chromosomal breakpoints and translocations in GC,several of which involved chromosomal loci of oncogenes or tumor suppressor ***: A total of 630 chromosomal breaks were identified. Chromosome no.8 was the most frequently involved in rearrangements (65 breaks), followed by chromosomes no. 11 (53), no. 1 (49), no. 7 (46), no. 13 (37), no. 3 (36), no. 17 (33), and no. 20 (29). Frequent breakpoints were detected in 8q24.1 (30 breaks), 11q13 (29), 13q14 (16), 20q11.2 (14), 7q32 (13), 17q11.2 (13),18q21 (12), 17q23 (9), 18q11.2 (9). SKY analysis identified a total of 242 chromosomal rearrangements including 190 reciprocal and non-reciprocal translocations. The recurrent combinations of chromosomal bands involved in translocations were 8q24.1 and 13q14 (3 cases), 8q24.1 and 11q13 (3), 11q13 and 17q11.2 (2), and 18q11.2 and 20q11.2 (2). Our study validated the ability of SKY to characterize in detail the chromosomal rearrangements in solid tumors and derived cell lines. Moreover,fluorescence in situ hybridization helped to identify the insertions, translocations, and homogeneously staining regions of MYCand CCND1 gene ***: The non-random co-localization of certain cytogenetic bands suggests the importance of chromosomal translocations in gastric carcinogenesis, by serving as landmarks for the cloning of GC causing genes.

关键词： Gastric cancer SKY FISH Chromosomaltranslocation

Performance of a Thermal Bipedal Walker on Inclined Surfaces with Different Leg CoMs

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Journal of Bionic Engineering 2019年第3期16卷 540-549页

作者： Lingchao Su Takeru Nemoto akio Yamamoto Department of Precision Engineering School of Engineering The University of Tokyo Japan

This paper investigates the walking performance of a thermal walker on various inclined surfaces. The thermal walker can walk only by ground heat energy using bimetal sheets. The walking performance on slopes is analyzed using a simplified walker model. The analytical result is compared with the two sets of walking experiments, on slopes with either pitch or roll inclinations. The analyses and the experiments are done with different Center-of-Mass (CoM) positions of the legs, which considerably influence the walking performance. It was found that, on up/down slopes, the stride of the thermal walker changes almost linearly with the slope angle. When the CoM was close to the center of the walker body, the walker walked backward on upward slopes. With CoM largely shifted backward, the walker could walk up slopes but did not walk down slopes well. On the other hand, when walking along a contour line of a slope, the stride decreased as the slope angle increased. The smaller leg swing distances would be caused by the change of leg swing time on such slopes.

关键词： bipedal walker bimetal thermal walker thermal actuator slope