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Spectrally resolved Franson interference

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Science China(Physics,Mechanics & Astronomy) 2024年第5期67卷 11-17页

作者： Rui-Bo Jin Zi-Qi Zeng Dan Xu Chen-Zhi Yuan Bai-Hong Li You Wang ryosuke Shimizu Masahiro Takeoka Mikio Fujiwara Masahide Sasaki Pei-Xiang Lu Hubei Key Laboratory of Optical Information and Pattern Recognition Wuhan Institute of TechnologyWuhan 430205China School of Physics and Information Science Shaanxi University of Science and TechnologyXi'an 710021China Southwest Institute of Technical Physics Chengdu 610041China Graduate School of Informatics and Engineering University of Electro-CommunicationsTokyo 182-8585Japan Department of Electronics and Electrical Engineering Keio UniversityKanagawa 223-8522Japan National Institute of Information and Communications Technology Tokyo 184-8795Japan

Franson interference can be used to test the nonlocal features of energy-time entanglement and has become a standard in quantum ***,most of the previous Franson interference experiments were demonstrated in the time domain,and the spectral properties of Franson interference have not been fully ***,we theoretically and experimentally demonstrate spectrally resolved Franson interference using biphotons with different correlations,including positive correlation,negative correlation,and *** is found that the joint spectral intensities of the biphotons can be modulated along both the signal and idler directions,which has potential applications in generating high-dimensional frequency entanglement and time-frequency grid *** work may provide a new perspective for understanding the spectral-temporal properties of the Franson interferometer.

关键词： resolved correlation spectral

Numerical model of local scour considering the unsteady sediment inflow and sediment sorting: Application to scour upstream of slit weir

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International Journal of Sediment Research 2022年第4期37卷 469-483页

作者： Kazuyuki Ota Takahiro Sato ryosuke Arai Meteorology and Fluid Science Division Central Research Institute of Electric Power Industry

The current study proposes a novel framework for the numerical model for estimating the temporal scour considering unsteady sediment inflow and the sediment sorting process. The framework was applied to local scour upstream of a slit weir. The scour model is based on an ordinary nonlinear differential equation derived from sediment continuity and scour rate equations. A one-dimensional(1-D)Boussinesq-type model coupled with nonequilibrium sediment transport was incorporated in the scour model to consider unsteady sediment inflow. In addition, a mixing layer approach was incorporated to determine temporal variations in particle size in the scour hole. The proposed framework was validated using scour experiments conducted under conditions that include non-uniform sediment, live-bed scour,and unsteady flow rate. The simulation results showed satisfactory agreement with experimental results for the scour upstream of a slit weir. The proposed model appropriately explained the hysteresis process for flow unsteadiness, refilling process for live-bed scour, and armoring process for non-uniform sediments. In addition, the model framework proposed in the current study is applicable to local scour around other hydraulic structures(e.g., bridge piers) upon establishing the scour rate equation. Therefore, the current study provides a novel approach for modeling temporal scour that is required to consider unsteady sediment inflow and sediment sorting.

关键词： Local scour Temporal scour Mixing layer theory Slit weir Non-equilibrium bed load

日本以农协为主推进智慧农业发展经验及对中国的启示

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农业工程学报 2024年第8期40卷 299-310页

作者：胡鹤鸣王应宽李明芋生憲司海津裕古桥贤一张洪铎冈本凉佑黄金其东京大学农学生命科学研究科东京113-8657 农业农村部规划设计研究院中国农业工程学会北京100125 湖南省农业科学院农业装备研究所长沙410125 日本久保田公司东京104-0031 湖南省丘陵山地动力平台工程技术研究中心长沙410125 丘陵山区农机装备多功能动力平台湖南省工程研究中心长沙410125

日本农业面临严峻的农业人口老龄化与农业人口减少的问题,且以小型田块和山地耕地居多,农业劳作不便。为了解决上述问题,保障粮食供应,振兴地方经济,日本正大力发展智慧农业。日本农协协助制定了新的农业基本法以及农林水产信息化战略... 详细信息

日本农业面临严峻的农业人口老龄化与农业人口减少的问题,且以小型田块和山地耕地居多,农业劳作不便。为了解决上述问题,保障粮食供应,振兴地方经济,日本正大力发展智慧农业。日本农协协助制定了新的农业基本法以及农林水产信息化战略以支持农业的发展,并在农业机械自动化、农用信息系统、农村网络改造、农用航空、植物工厂等方面开展了大量的科技创新与应用,推动了日本现代农业的发展,日本以140.4万人且主体为老龄人口的核心农户实现了近1.3亿人口的主要粮食自给自足。日本农协多层级、多部门、全方位覆盖农业流程的服务,为智慧农业的落地助力。纵观日本智慧农业的发展历程与成效,借鉴其成功经验,对中国农业发展提出如下建议:应当创新农业体制机制,打通信息、人力、资源的流通渠道;优化农村营商环境,发挥好地方、高校、企业等不同主体的优势,立足乡村振兴角度对智慧农业技术进行长期的实证化研究;借鉴日本农协在农业生产、销售、推广、管理上的经验,因地制宜,积极探索,夯实根基,有助于推进中国乡村全面振兴,加快农业农村现代化和建设智慧农业强国。

关键词：智慧农业农业强国信息化农协人口老龄化乡村振兴日本

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Simultaneous augmentation of muscle and bone by locomomimetism through calcium-PGC-1αsignaling

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Bone Research 2022年第4期10卷 770-783页

作者： Takehito Ono ryosuke Denda Yuta Tsukahara Takashi Nakamura Kazuo Okamoto Hiroshi Takayanagi Tomoki Nakashima Department of Cell Signaling Graduate School of Medical and Dental SciencesTokyo Medical and Dental University(TMDU)Yushima 1-5-45Bunkyo-kuTokyo 113-8549Japan Department of Orthopaedic Surgery The Jikei University School of Medicine3-25-8 Nishi-ShimbashiMinato-kuTokyo 105-8461Japan School of Dentistry Tokyo Medical and Dental University(TMDU)Yushima 1-5-45Bunkyo-kuTokyo 113-8549Japan Department of Biochemistry Tokyo Dental CollegeKandamisakicho 2-9-18Chiyoda-kuTokyo 101-0061Japan Department of Osteoimmunology Graduate School of Medicine and Faculty of MedicineThe University of TokyoHongo 7-3-1Bunkyo-kuTokyo 113-0033Japan Department of Immunology Graduate School of Medicine and Faculty of MedicineThe University of TokyoHongo 7-3-1Bunkyo-kuTokyo 113-0033Japan

Impaired locomotion has been extensively studied worldwide because those afflicted with it have a potential risk of becoming *** exercise at times can be an effective remedy for frailty,but exercise therapy cannot be applied in all clinical *** is safer than exercise,but there are no drugs that reinforce both muscle and bone when administered *** medications increase the risk of adverse events;thus,there is a need for individual drugs targeting both *** this end,we established a novel sequential drug screening system and identified an aminoindazole derivative,locamidazole(LAMZ),which promotes both myogenesis and osteoblastogenesis while suppressing *** of this drug enhanced locomotor function,with muscle and bone significantly ***,LAMZ induced Mef2c and PGC-1αin a calcium signaling–dependent *** this signaling is activated upon physical exercise,LAMZ mimics physical ***,LAMZ is a promising therapeutic drug for locomotor diseases,including sarcopenia and osteoporosis.

关键词： drugs clinical diseases

Research Activities of Nanodimensional Standards Using Atomic Force Microscopes,Transmission Electron Microscope,and Scanning Electron Microscope at the National Metrology Institute of Japan

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Nanomanufacturing and Metrology 2022年第2期5卷 83-90页

作者： Ichiko Misumi ryosuke Kizu Hiroshi Itoh Kazuhiro Kumagai Keita Kobayashi Tomoo Sigehuzi National Institute of Advanced Industrial Science and Technology AIST Tsukuba Central 51-1-1 HigashiIbaraki305-8565TsukubaJapan

With the progress in nanotechnology,the importance of nanodimensional standards is *** nanodimensional standards requires multiple types of high-precision microscopy *** National Metrology Institute of Japan(NMIJ),one of the research domains in the National Institute of Advanced Industrial Science and Technology(AIST),is developing nanodimensional standards using atomic force,transmission electron,and scanning electron *** current status of nanodimensional standards in NMIJ is introduced herein.

关键词： Nanodimensional standards Calibration Uncertainty AFM TEM SEM

Indocyanine green plasma clearance rate and 99mTc-galactosyl human serum albumin single-photon emission computed tomography evaluated preoperative remnant liver

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World Journal of Clinical Cases 2022年第25期10卷 8844-8853页

作者： Kentaro Iwaki Satoshi Kaihara ryosuke Kita Koji Kitamura Hiroki Hashida Kenji Uryuhara Department of Surgery Kobe City Medical Center General HospitalKobe 650-0046HyogoJapan

BACKGROUND Preoperative evaluation of future remnant liver reserves is important for safe *** the remnant is small,preoperative portal vein embolization(PVE)is *** volume analysis has been the primary method of preoperative evaluation,although functional examination may be more *** have used the functional evaluation liver using the indocyanine green plasma clearance rate(KICG)and 99mTc-galactosyl human serum albumin single-photon emission computed tomography(99mTc-GSA SPECT)for safe *** To analyze the safety of our institution’s system for evaluating the remnant liver *** We retrospectively reviewed the records of 23 patients who underwent preoperative *** types of remnant liver KICG were defined as follows:Anatomical volume remnant KICG(a-rem-KICG),determined as the remnant liver anatomical volume rate×KICG;and functional volume remnant KICG(frem-KICG),determined as the remnant liver functional volume rate based on 99mTc-GSA SPECT×*** either of the remnant liver KICGs were>0.05,a hepatectomy was *** factors were *** defined the marginal group as patients with a-rem-KICG of0.05 and compared the postoperative outcomes between the marginal and not marginal(both a-rem-KICG and f-rem-KICG>0.05)*** All 23 patients underwent planned *** hepatectomy,right trisectionectomy and left trisectionectomy were in 16,6 and 1 cases,*** mean of blood loss and operative time were 576 mL and 474 min,*** increased amount of frem-KICG was significantly larger than that of a-rem-KICG after PVE(0.034 vs 0.012,P=0.0273).The not marginal and marginal groups had 17(73.9%)and 6(26.1%)patients,*** complications of Clavian-Dindo classification grade II or higher and post-hepatectomy liver failure were observed in six(26.1%)and one(grade A,4.3%)patient,*** 90-d mortality was *** marginal group had no

关键词： 99mTc-galactosyl human serum albumin single-photon emission computed tomography Hepatectomy Indocyanine green Indocyanine green plasma clearance rate Liver function evaluation Remnant liver reserve

Crowd evacuation of pairs of pedestrians

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Communications in Theoretical Physics 2022年第4期74卷 97-112页

作者： ryosuke Yano Tokio Marine d R Co.ltd. 1-5-1OtemachiChiyoda-kuTokyo100-0004Japan

The crowd evacuation of pairs of pedestrians(*** consisting of a parent and a child)is numerically ***,it is assumed that all pedestrians have their own partners,and move randomly inside the bounded domain of the right-hand room as an initial *** pedestrians start their evacuations after they contact their *** evacuations are completed by the transfer of all the pairs from the right-hand room to the left-hand room through an exit.A frozen swarm tends to appear in the right-hand room as the total number of pedestrians *** frozen swarm moves without changing its form,unless it is dissolved by a strong collision with a pair of pedestrians that comes back from the left-hand room by ***,the evacuation speed also depends on the area of the Escape Zone,whereas an obstacle placed in front of an exit also changes the speed of the evacuation in accordance with the type of motion of the children.

关键词： Evacuation of paired pedestrians force chain network escape from crowd

An integrated model to simulate sown area changes for major crops at a global scale

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Science China Earth Sciences 2008年第3期51卷 370-379页

作者： SHIBASAKI ryosuke Center for Spatial Information Science University of Tokyo

Dynamics of land use systems have attracted much attention from scientists around the world due to their ecological and socio-economic implications. An integrated model to dynamically simulate future changes in sown areas of four major crops (rice, maize, wheat and soybean) on a global scale is pre- sented. To do so, a crop choice model was developed on the basis of Multinomial Logit (Logit) model to model land users' decisions on crop choices among a set of available alternatives with using a crop utility function. A GIS-based Environmental Policy Integrated Climate (EPIC) model was adopted to simulate the crop yields under a given geophysical environment and farming management conditions, while the International Food Policy and Agricultural Simulation (IFPSIM) model was utilized to estimate crop price in the international market. The crop choice model was linked with the GIS-based EPIC model and the IFPSIM model through data exchange. This integrated model was then validated against the FAO statistical data in 2001-2003 and the Moderate Resolution Imaging Spectroradiometer (MODIS) global land cover product in 2001. Both validation approaches indicated reliability of the model for ad- dressing the dynamics in agricultural land use and its capability for long-term scenario analysis. Finally, the model application was designed to run over a time period of 30 a, taking the year 2000 as baseline. The model outcomes can help understand and explain the causes, locations and consequences of land use changes, and provide support for land use planning and policy making.

关键词： land use change crop sown area simulation crop choice global scale

Surgical outcome comparisons of multifocal IOLs of Lentis Comfort LS-313 MF15 and Tecnis Eyhance DIB00V

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International Journal of Ophthalmology(English edition) 2023年第12期16卷 2004-2010页

作者： Kyohei Sugawara ryosuke Ito Hiroshi Horiguchi Kei Mizobuchi Satoshi Katagiri Hisato Gunji Tadashi Nakano Comparisons of multifocal IOLs of LS-313-MF15 and DIB00V Department of Ophthalmology the Jikei University School of MedicineTokyo 105-8461Japan

AIM:To compare the surgical outcomes of a multifocal intraocular lens(IOL;Lentis Comfort LS-313 MF15)with those of an enhanced monofocal IOL(Tecnis Eyhance DIB00V).METHODS:This retrospective study included patients who underwent cataract surgery with LS-313 MF15 or Eyhance IOL *** regarding patient demographics,surgical records,and ophthalmic examination before the cataract surgery and one and three months postoperatively were *** acuities,refractive values,defocus curves,contrast sensitivities and subjective symptoms were ***:Among the 71 eyes(47 patients)included in this study,32 eyes(20 patients)underwent LS-313 MF15 IOL implantation,and 39 eyes(27 patients)underwent Eyhance IOL *** significant differences were observed in age,axial length,or refractive error between the two groups ***,the distancecorrected and uncorrected distance visual acuities one month postoperatively did not differ between the groups,and both groups had sufficient visual acuities at the distances of 5,1 m,70,50,and 30 *** ophthalmic data,including subjective symptoms based on the 14-item Visual Function Index Questionnaire,monocular defocus curves,contrast sensitivities,and halo and glare,did not differ between the groups three months ***,both groups had good *** spherical equivalent one month postoperatively was significantly myopic in the LS-313 MF15 group compared with that in the Eyhance group(P=0.033);however,this difference was not observed three months postoperatively(P=0.471).CONCLUSION:Comparison of the surgical outcomes of LS-313 MF15 with those of Eyhance with different optical properties reveal that both IOLs show good postoperative outcomes,with no significant differences being noted between the two IOLs.

关键词： cataracts intermediate distances intraocular lens multifocal surgical outcomes