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The 2024 M_(j) 7.6 Noto Peninsula, Japan earthquake caused by the fluid flow in the crust

Earthquake Research Advances 2024年第3期4卷 1-6页

作者： yuzo Ishikawa Ling Bai Center for Integrated Research and Education of Natural Hazards Shizuoka UniversityShizuoka422-8529Japan State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing100101China University of Chinese Academy of Sciences Beijing100049China

On January 1, 2024 at 16:10:09 JST, an M_(j) 7.6 earthquake struck the Noto Peninsula in the southern part of the Sea of Japan. This location has been experiencing an earthquake swarm for more than three years. Here, we provide an overview of this earthquake, focusing on the slip distribution of the mainshock and its relationship with the preceding swarm. We also reexamined the source areas of other large earthquakes that occurred around the Sea of Japan in the past and compared them with the Matsushiro earthquake swarm in central Japan from1964 to 1968. The difference between the Matsushiro earthquake swarm and the Noto earthquake swarm is the surrounding stress field. The Matsushiro earthquake swarm was a strike-slip stress field, so the cracks in the crust were oriented vertically. This allowed fluids seeped from the depths to rise and flow out to the surface. On the other hand, the Noto area was a reverse fault stress field. Therefore, the cracks in the earth's crust were oriented horizontally. Fluids flowing underground in deep areas could not rise and spread over a wide area in the horizontal plane. This may have caused a large amount of fluid to accumulate underground, triggering a large earthquake. Although our proposed mechanism does not take into account other complex geological conditions into consideration, it may provide a simple way to explain why the Noto swarm is followed by a large earthquake while other swarms are not.

关键词： The M 7.6 Noto Peninsular earthquake Earthquake swarm Fluid triggering Strike-slip fault Reverse fault

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The 2023 Turkey earthquake doublet: Earthquake relocation, seismic tomography, and stress field inversion

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Earth and Planetary Physics 2024年第3期8卷 535-548页

作者： HuiLi Zhan Ling Bai Bagus Adi Wibowo ChaoYa Liu Kazuo Oike yuzo Ishikawa State Key Laboratory of Tibetan Plateau Earth System Environment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Center of Earthquake and Tsunami Agency of MeteorologyClimatology and GeophysicsJakarta 10610Indonesia University of Shizuoka Shizuoka 422-8526Japan Shizuoka University Shizuoka 422-8529Japan

On February 6,2023,two earthquakes with magnitudes of M_(W) 7.8 and M_(W) 7.5 struck southeastern Turkey,causing significant casualties and economic *** seismic events occurred along the East Anatolian Fault Zone,a convergent boundary between the Arabian Plate and the Anatolian *** this study,we analyze the M_(W) 7.8 and M_(W) 7.5 earthquakes by comparing their aftershock relocations,tomographic images,and stress field *** earthquakes were localized in the upper crust and exhibited steep dip ***,the aftershocks occurred either close to the boundaries of low and high P-wave velocity anomaly zones or within the low P-wave velocity anomaly *** East Anatolia Fault,associated with the M_(W) 7.8 earthquake,and the SürgüFault,related to the M_(W) 7.5 earthquake,predominantly experienced shear ***,their western sections experienced a combination of strike-slip and tensile stresses in addition to shear *** ruptures of the M_(W) 7.8 and M_(W) 7.5 earthquakes appear to have bridged a seismic gap that had seen sparse seismicity over the past 200 years prior to the 2023 Turkey earthquake sequence.

关键词： Turkey earthquake doublet earthquake relocation seismic tomography stress field seismicity

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CD14 upregulation as a distinct feature of non-alcoholic fatty liver disease after pancreatoduodenectomy

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World Journal of Hepatology 2013年第4期5卷 189-195页

作者： Daisuke Satoh Takahito Yagi Takeshi Nagasaka Susumu Shinoura yuzo umeda Ryuichi Yoshida Masashi Utsumi Takehiro Tanaka Hiroshi Sadamori Toshiyoshi Fujiwara Department of Gastroenterological Surgery Transplantand Surgical OncologyOkayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayama 700-8558Japan Department of Pathology Okayama University Graduate School of MedicineDentistry and Pharmaceutical SciencesOkayama 700-8558Japan

AIM:To investigate the pathogenesis of non-alcoholic fatty liver disease(NAFLD)after pancreatoduodenectomy(PD).METHODS:A cohort of 82 patients who underwent PD at Okayama University Hospital between 2003 and 2009 was enrolled and the clinicopathological features were compared between patients with and without NAFLD after *** tomography(CT)images were evaluated every 6 mo after PD for *** steatosis was diagnosed on CT when hepatic attenuation values were 40 Hounsfield *** biopsy was performed for 4 of 30 patients with NAFLD after PD who consented to undergo *** compare NAFLD after PD with NAFLD associated with metabolic syndrome,liver samples were obtained from 10 patients with NAFLD associated with metabolic syndrome [fatty liver,n = 5;non-alcoholic steatohepatitis(NASH),n = 5] by percutaneous ultrasonography-guided liver ***-fluorescence immunohistochemistry was applied to examine CD14 expression as a marker of lipopolysaccharide(LPS)-sensitized macrophage cells(Kupffer cells)in liver biopsy ***:The incidence of postoperative NAFLD was 36.6%(30/82).Univariate analysis identified cancer of the pancreatic head,sex,diameter of the main pancreatic duct,and dissection of the nerve plexus as factors associated with the development of NAFLD after *** patients who developed NAFLD after PD demonstrated significantly decreased levels of serum albumin,total protein,cholesterol and triglycerides compared to patients without NAFLD after PD,but no glucose intolerance or insulin *** biopsy was performed in four patients with NAFLD after *** four patients showed moderate-to-severe steatosis and NASH was diagnosed in *** of cells positive for CD68(a marker of Kupffer cells)and CD14(a marker of LPSsensitized Kupffer cells)were counted in all biopsy *** number of CD68+ cells in specimens of NAFLD after PD was significantly increased from that in specimens of NAFLD associated with meta

关键词： Non-alcoholic fatty liver disease Pancreatoduodenectomy CD14 Endotoxin Kupffer cells

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Large Eddy Simulation of Swirling Jet in a Bluff-Body Burner

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Journal of Thermal Science 2005年第1期14卷 28-33页

作者： Yohei FUJIMOTO yuzo INOKUCHI Nobuhiko YAMASAKI Department of Aeronautics and Astronautics Kyushu-University 6-10-1HakozakiHigashikuFukuoka812-8581JapanDepartment of Aeronautics and Astronautics Kyushu-University 6-10-1HakozakiHigashikuFukuoka812-8581JapanDepartment of Aeronautics and Astronautics Kyushu-University 6-10-1HakozakiHigashikuFukuoka812-8581Japan

The large eddy simulation (LES) is applied to an unconfined swirling flow of an air surrounding a bluff-body having a central jet of air, and the complicated flowfield that involves the recirculation and vortex breakdown is investigated. The Smagorinsky model is used as the sub-grid scale model. The results of the present numerical simulation are compared with the experimental data of the mean and stochastic root mean square (RMS) variations of two velocity components. Although the inflow conditions are specified in a simple manner, the obtained numerical results are in reasonable agreement with the experiments, except for a part of RMS variation values near downstream of the bluff body. The present numerical calculations can successfully reproduce the two characteristics of the flow, i.e., an upstream recirculation zone established just downstream of the burner plane and the additional recirculation zone established at the more downstream location.

关键词： large eddy simulation swirl bluff-body recirculation.

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Overview of Exercise Prescription for Diabetes Patients and Its Application in Japan

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Journal of Science in Sport and Exercise 2020年第3期2卷 226-235页

作者： yuzo Sato Aichi Mizuho College 2-13Shunko-choMizuho-kuNagoyaAichi 467-0867Japan

In recent years,the Westernization of dietary habits and increasingly sedentary lifestyle have contributed to a marked increase in the number of type 2 diabetes *** behavior may play a significant role in the development and aggravation of type 2 *** results of various follow-up studies have demonstrated that proper diet combined with physical exer-cise is useful in the prevention and treatment of type 2 diabetes.A nationwide survey regarding exercise therapy for diabetes patients in Japan revealed that relatively few physicians provide patients with exercise guidance because of time constraints,that the physicians do not receive additional consultation fee,and that there is a lack of specialized physical exercise *** exercise promotes the utilization of glucose and free fatty acids in the muscles,and thus lowers blood glucose(BG)*** restriction and physical exercise are effective in the prevention and treatment of type 2 diabetes by improving the in vivo sensitivity to *** adults with diabetes should engage in 150 min or more of moderate-to-vigorous intensity aerobic activity per week,spread out over at least 3 days/week,with no more than two consecutive days without ***-intensity resistance training such as half squat and calf raise is recommended for elderly individuals who have decreased muscle strength and mass(sarcopenia).Prolonged sitting should be interrupted every 30 min for BG benefits,particularly in adults with type 2 *** with type 2 diabetes are also encouraged to increase their total daily unstructured physical activity(daily movement).

关键词： Diabetes mellitus Exercise prescription Sedentary behavior Aerobic exercise Resistance exercise Nationwide survey

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Characteristics of obese or overweight dogs visiting private Japanese veterinary clinics

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Asian Pacific Journal of Tropical Biomedicine 2016年第4期6卷 338-343页

作者： Shiho Usui Hidemi Yasuda yuzo Koketsu School of Agriculture Meiji University Department of Veterinary Research and Development Spectrum Lab Japan

Objective:To characterize obese or overweight dogs that visited private Japanese veterinary clinics located in humid subtropical climate ***:Dogs were categorized into four body condition score groups and five body size groups based on their *** logistic regression models were applied to the data.A Chi-squared test was used to examine whether the percentage of obese or overweight dogs differed between ***:There were 15.1% obese dogs and 39.8% overweight *** dogs were characterized by increased age and female sex,whereas overweight dogs were characterized by increased age and neuter status(P < 0.05).Peak probabilities of dogs being either obese or overweight were between 7 and 9 years of age,with the probabilities then declining as the dogs got *** example,in toy sized dogs,the probability of dogs being overweight increased from 33.4% to a peak of 55.1% as dog age rose from 1 to 8years ***,in medium,small and toy sized dogs,neutered dogs were more likely to be overweight than intact dogs,whereas neutered small sized dogs were more likely to be obese than intact small sized dogs(P < 0.05).Additionally,the percentages of obese or overweight dogs differed between the 10 selected breeds with the highest percentage of obese or overweight ***:By taking age,body size,sex and neuter status into account,veterinarians can advise owners about maintaining their dogs in ideal body condition.

关键词： Age Canine Factors Obesity Overweight

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Measurement and Numerical Simulation of a Small Centrifugal Compressor Characteristics at Small or Negative Flow Rate

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Journal of Thermal Science 2017年第2期26卷 107-112页

作者： Kaname Tsukamoto Mizuki Okada yuzo Inokuchi Nobuhiko Yamasaki Akihiro Yamagata Kyushu University Motooka 744819-0395FukuokaJapan IHI Corporation Shin-Nakahara 1235-8501YokohamaJapan

For centrifugal compressors used in automotive turbochargers, the extension of the surge margin is demanded because of lower engine speed. In order to estimate the surge line exactly, it is required to acquire the compressor characteristics at small or negative flow rate. In this paper, measurement and numerical simulation of the characteristics at small or negative flow rate are carried out. In the measurement, an experimental facility with a valve immediately downstream of the compressor is used to suppress the surge. In the numerical work, a new boundary condition that specifies mass flow rate at the outlet boundary is used to simulate the characteristics around the zero flow rate region. Furthermore, flow field analyses at small or negative flow rate are performed with the numerical results. The separated and re-circulated flow fields are investigated by visualization to identify the origin of losses.

关键词： centrifugal compressor turbocharger measurement CFD RANS surge small flow negative flow

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Impact of penile rehabilitation with low-dose vardenafil on recovery of erectile function in Japanese men following nerve-sparing radical prostatectomy

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Asian Journal of Andrology 2014年第6期16卷 892-896页

作者： yuzo Nakano Hideaki Miyake Koji Chiba Masato Fujisawa Division of Urology Kobe University Graduate School of Medicine Kusunoki-cho Chuo-ku Kobe Japan.

Erectile dysfunction （ED） is a major complication after radical prostatectomy （RP）; however, debatecontinues regarding the efficacy of penile rehabilitation in the recovery of the postoperative erectile function （EF）. This study includeda total of 103 consecutive sexually active Japanese men with localized prostate cancer undergoing nerve-sparing RP, and analyzed the postoperative EF, focusing on the significance of penile rehabilitation. In this series, 24 and 79 patients underwent bilateral and unilateral nerve-sparing RPs, respectively, and 10 or 20 mg of vardenafil was administered to 35 patients at least once weekly, who agreed to undergo penile rehabilitation. Twelve months after RP, 48 （46.6%） of the 103 patients were judged to have recovered EF sufficient for sexual intercourse without any assistance. The proportion of patients who recovered EF in those undergoing penile rehabilitation （60.0%） was significantly greater than that in those without penile rehabilitation （38.2%）. Of several parameters examined, the preoperative International Index of Erectile Function-5 （IIEF-5） score and nerve-sparing procedure were significantly associated with the postoperative EF recovery rates in patients with and without management by penile rehabilitation, respectively. Furthermore, univariate analysis identified the preoperative IIEF-5 score, nerve-sparing procedure and penile rehabilitation as significant predictors of EF recovery, among which the preoperative IIEF-5 score and nerve-sparing procedure appeared to be independently associated with EF recovery. Considering these findings, despite the lack of independent significance, penile rehabilitation with low-dose vardenafil could exert a beneficial effect on EF recovery in Japanese men following nerve-sparing RP.

关键词： erectile function nerve-sparing radical prostatectomy penile rehabilitation vardenafil

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Electromagneto-mechanical fields of giant magnetostrictive/piezoelectric laminates under concentrated load

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International Journal of Smart and Nano Materials 2012年第2期3卷 169-182页

作者： Yasuhide Shindo yuzo Kori Kotaro Mori Fumio Narita Department of Materials Processing Graduate School of EngineeringTohoku UniversityAoba-yama 6-6-02Sendai 980-8579Japan

This paper presents the nonlinear electromagneto-mechanical behavior of magnetostrictive/piezoelectric laminates under three-point bending both numerically and *** laminates are fabricated using thin Terfenol-D and PZT *** three-point bending test was conducted on the Terfenol-D/PZT laminates,and the displacement,induced magnetic field and induced voltage due to mechanical loads were ***-dimensional finite element analysis was also carried out,and the electromagneto-mechanical fields in the laminates were predicted by introducing a second-order magnetoelastic constant for *** was then made between simulation and experiment.

关键词： Magnetostrictive/piezoelectric mechanics finite element method material testing electronic laminates detection and response characteristics smart materials and structures

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CFD Simulation of Pulsation Noise in a Small Centrifugal Compressor with Volute and Resonance Tube

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Journal of Thermal Science 2015年第1期24卷 24-29页

作者： Daich Wakaki Yuta Sakuka yuzo Inokuchi Kosuke Ueda Nobuhiko Yamasaki Akihiro Yamagata Kyushu University IHI Corporation

The rotational frequency tone noise emitted from the automobile turbocharger is called the pulsation noise. The cause of the pulsation noise is not fully understood, but is considered to be due to some manufacturing errors, which is called the mistuning. The effects of the mistuning of the impeller blade on the noise field inside the flow passage of the compressor are numerically investigated. Here, the flow passage includes the volute and duct located downstream of the compressor impeller. Our numerical approach is found to successfully capture the wavelength of the pulsation noise at given rotational speeds by the comparison with the experiments. One of the significant findings is that the noise field of the pulsation noise in the duct is highly one-dimensional although the flow fields are highly three-dimensional.

关键词： Pulsation Tone Noise CFD URANS Centrifugal Compressor Turbocharger Volute

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