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Fluid sample injectors for x-ray free electron laser at SACLA

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High Power Laser Science and Engineering 2017年第2期5卷 1-7页

作者： kensuke Tono Japan Synchrotron Radiation Research Institute 1-1-1 Kouto Sayo flyogo 679-5198 Japan RIKEN SPring-8 Center 1-1-1 Kouto Sayo Hyogo 679-5148 Japan

This paper provides a review on sample injectors which are provided at SPring-8 Angstrom Compact free electron LAser(SACLA) for conducting serial measurement in a ‘diffract-before-destroy' scheme using an x-ray free electron laser(XFEL). Versatile experimental platforms at SACLA are able to accept various types of injectors, among which liquidjet, droplet and viscous carrier injectors are frequently utilized. These injectors produce different forms of fluid targets such as a liquid filament with a diameter in the order of micrometer, micro-droplet synchronized to XFEL pulses, and slowly flowing column of highly viscous fluid with a rate below 1 μL min-1. Characteristics and applications of the injectors are described.

关键词： SACLA sample injector serial femtosecond crystallography x-ray free electron laser

Development of natural treatment system consisting of black soil and Kentucky bluegrass for the post-treatment of anaerobically digested strong wastewater

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Journal of Environmental Sciences 2016年第3期28卷 44-50页

作者： Xiaochen Chen kensuke Fukushi Department of Urban Engineering The University of Tokyo Integrated Research System for Sustainability Science The University of Tokyo

To develop a sound post-treatment process for anaerobically-digested strong wastewater,a novel natural treatment system comprising two units is put *** first unit,a trickling filter,provides for further reduction of biochemical oxygen demand and adjustable *** subsequent soil–plant unit aims at removing and recovering the nutrients nitrogen（N）,phosphorus（P）and potassium（K）.As a lab-scale feasibility study,a soil column test was conducted,in which black soil and valuable Kentucky bluegrass were integrated to treat artificial nutrient-enriched *** a long-term operation,the nitrification function was well established in the top layers,despite the need for an improved denitrification process prior to discharge.P and K were retained by the soil through distinct *** they either partially or totally remained in plant-available forms in the soil,indirect nutrient reuse could be *** for Kentucky bluegrass,it displayed better growth status when receiving wastewater,with direct recovery of 8%,6% and 14% of input N,P and K,***,the indispensable role of Kentucky bluegrass for better treatment performance was proved,as it enhanced the cell-specific nitrification potential of the soil nitrifying microorganisms inhabiting the *** further upgrade,the proposed system is expected to become a new solution for strong wastewater pollution.

关键词： Natural treatment system Black soil Kentucky bluegrass Strong wastewater Soil column test

Synergistic Integration of Detailed Meteorological and Community Information for Evacuation from Weather-Related Disasters: Proposal of a ‘‘Disaster Response Switch’’

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International Journal of Disaster Risk Science 2020年第6期11卷 762-775页

作者： kensuke Takenouchi Katsuya Yamori Disaster Prevention Research Institute Kyoto UniversityUji Kyoto 606-0011Japan

Meteorological information used for disaster prevention has developed rapidly in terms of both type and *** latest forecasting models can predict weather with very high resolutions that can characterize disaster risk at the local ***,this development can lead to an overdependency on the information and a wait-and-see attitude by the *** the same time,residents share and use various types of information for disaster response,such as local conditions,in addition to official disaster *** research in Japan verified the practicality and efficiency of synergistically integrating these types of information by examining actual evacuation *** current numerical forecasting models sufficiently identify locality from the viewpoint of various administrative scales such as prefectures,municipalities,and school districts,but the improvements to these models have failed to improve residents’judgment in successful evacuation *** therefore analyzed the relationship between meteorological information and residents’disaster response and confirmed that they were strongly correlated and were contributing factors in preventing *** revealed differences between a community’s disaster prevention culture and the disaster information *** led us to propose a new concept in community disaster prevention that we call the‘‘disaster response switch,’’which can serve as a data-driven risk management tool for communities when used in combination with advanced meteorological disaster information.

关键词： Community disaster prevention Disaster response High-resolution forecasting model Japan Meteorological information Risk communication

An interactive approach to investigate brightness perception of daylighting in Immersive Virtual Environments:Comparing subjective responses and quantitative metrics

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Building Simulation 2022年第1期15卷 41-68页

作者： Muhammad Hegazy kensuke Yasufuku Hirokazu Abe Graduate School of Engineering Osaka UniversityYamadaoka 2-1 Suita Osaka567-0047Japan Cybermedia Center Osaka UniversityJapan

Daylighting plays an eminent role in the performance of indoor environments and their occupants,thus necessitating the need to investigate daylight perception of potential occupants at early design *** present study introduces an interactive approach to collect and visualize brightness perception of daylighting in a large-scale immersive virtual environment using a game engine as a daylight simulation *** developed system allows users to explore building models freely at different day times set in virtual reality and report their perceptions in real *** a validation study(N=36)to investigate the consistency of brightness perceptions in a real environment and its virtual replica,a set of 24 participants were recruited to use the system to report their brightness perception in a virtual model of a daylit art museum,through snapshotting the scenes where they perceive as one of the following in terms of daylighting:(very dark,dark,bright,or very bright).Using an output of 419 snapshots,a"Perceptual Light Map"(PLM)was developed to visualize the collective brightness perception of participants as a heat *** responses were found to be positively correlated with four daylight metrics,with the highest correlation to mean luminance and the lowest to luminance *** findings of this exploratory study represent a step towards a user-oriented supplement tool to the existing quantitative daylight metrics,validating game engines’adequacy as a daylight simulation tool,and illustrating the potentials of immersion and interaction principles for the perception of daylit spaces in virtual reality.

关键词： immersive virtual environment daylighting game engine human perception mean luminance

Comparative assessment of primary and secondary infection risks in a norovirus outbreak using a household model simulation

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Journal of Environmental Sciences 2016年第12期28卷 13-20页

作者： Fuminari Miura Toru Watanabe Kozo Watanabe Kazuhiko Takemoto kensuke Fukushi Department of Urban Engineering Graduate School of Engineering the University of Tokyo Department of Food Life and Environmental Sciences Faculty of Agriculture Yamagata University Department of Civil and Environmental Engineering Ehime University Institute for the Advanced Study of Sustainability the United Nations University Todai Institutes for Advanced Study(TODIAS) Integrated Research System for Sustainability Science(IR3S) The University of Tokyo

Diarrheal diseases can be transmitted via both primary infection due to exposures to contaminated materials from the environment and secondary infection due to person- to-person contacts. Usually, the importance of secondary infection is empirically assessed by fitting mathematical models to the epidemic curves. However, these empirical models may not be applicable to other epidemic cases because they are developed only for the target epidemics and they don＇t consider the detail routes of infection. In our previous study, we developed a theoretical model taking into account the various routes of infection that commonly occur in households （e.g., shaking hands, food handling, and changing diapers）. This model was made flexible and applicable to any epidemics by means of adjusting model parameters. In this study, we proposed a new index ＂Vulnerability indicator to secondary infection （VISI）＂, which expressed a ratio of secondary infection to primary infection risks and calculated this index in a simulated norouirus （NOV） epidemic that involved I0,000 households. The results demonstrated that households composed of more than three members including infant（s） had much higher levels of VlSl （5-45） than two-member-households with VlSI （0.1-4）. These results concluded that the infants were likely to be a hub of secondary infections in highly dense families and therefore careful handling of diapers was deemed indispensible in such families to effectively control the secondary infections.

关键词： Norovirus Quantitative microbial riskassessment Secondary infection

Clinical implications of accessory pancreatic duct

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World Journal of Gastroenterology 2010年第36期16卷 4499-4503页

作者： Terumi Kamisawa kensuke Takuma Taku Tabata Naoto Egawa Department of Internal Medicine Tokyo Metropolitan Komagome Hospital3-18-22 HonkomagomeBunkyo-kuTokyo 113-8677Japan

The accessory pancreatic duct (APD) is the main drainage duct of the dorsal pancreatic bud in the embryo,entering the duodenum at the minor duodenal papilla (MIP).With the growth,the duct of the dorsal bud undergoes varying degrees of atrophy at the duodenal *** of the APD in 291 control cases was 43% as determined by dye-injection endoscopic retrograde *** of the APD in 46 patients with acute pancreatitis was only 17%,which was significantly lower than in control cases (P < 0.01).The terminal shape of the APD was correlated with APD *** on the data about correlation between the terminal shape of the APD and its patency,the estimated APD patency in 167 patients with acute pancreatitis was 21%,which was signif icantly lower than in control cases (P < 0.01).A patent APD may function as a second drainage system for the main pancreatic duct to reduce the pressure in the main pancreatic duct and prevent acute *** f indings of 91 patients with pancreaticobiliary maljunction (PBM) were divided into a normal duct group (80 patients) and a dorsal pancreatic duct (DPD) dominant group (11 patients).While 48 patients (60%) with biliary carcinoma (gallbladder carcinoma,n=42;bile duct carcinoma,n=6) were identified in PBM with a normal pancreatic duct system,only two cases of gallbladder carcinoma (18%) occurred in DPD-dominant patients (P < 0.05).Concentration of amylase in the bile of DPD dominance was signifi cantly lower than that of normal pancreatic duct system (75 403.5 ± 82 015.4 IU/L vs 278 157.0 ± 207 395.0 IU/L,P < 0.05).In PBM with DPD dominance,most pancreatic juice in the upper DPD is drained into the duodenum via the MIP,and reflux of pancreatic juice to the biliary tract might be reduced,resulting in less frequency of associated biliary carcinoma.

关键词： Accessory pancreatic duct Minor duodenal papilla Pancreas divisum Main pancreatic duct Acute pancreatitis Pancreaticobiliary maljunction

Droplet morphology analysis of drop-on-demand inkjet printing

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China Foundry 2024年第1期21卷 20-28页

作者： Hu-xiang Xia Takechi kensuke Tajima Shin Kawamura Yoshiumi Qing-yan Xu Key Laboratory for Advanced Materials Processing Technology(MOE) School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China Toyota Central R&D Labs. Inc.41-1 Yokomichi NagakuteAichi 480-1192Japan Frontier Research Center Toyota Motor Corporation1 Toyota-ChoToyotaAichi 471-8572Japan

As an accurate 2D/3D fabrication tool,inkjet printing technology has great potential in preparation of micro electronic *** morphology of droplets produced by the inkjet printer has a great impact on the accuracy of *** this study,the drop-on-demand(DoD)inkjet simulation model was established,and the accuracy of the simulation model was verified by corresponding *** simulation result shows that the velocity of the droplet front and tail,as well as the time to disconnect from the nozzle is mainly affected by density(ρ),viscosity(μ)and surface tension(σ)of *** the liquid filament is about to disconnect from the nozzle,the filament length and filament front velocity are found to have a linear correlation withσ/ρμand ln(ρ/(μσ1/2)).

关键词： microdevice fabrication inkjet printing droplet morphology modeling and simulation

Body Extension by Using Two Mobile Manipulators

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Cyborg and Bionic Systems 2023年第1期4卷 418-426页

作者： Yusuke Hirao Weiwei Wan Dimitrios Kanoulas kensuke Harada Graduate School of Engineering Science Osaka UniversityOsakaJapan Department of Computer Science University College LondonLondonUK

This paper presents a remotely operated robotic system that includes two mobile manipulators to extend the functional capabilities of a human *** with previous tele-operation or robotic body extension systems,using two mobile manipulators helps with enlarging the workspace and allowing manipulation of large or long *** system comprises a joystick for controlling the mobile base and robotic gripper,and a motion capture system for controlling the arm *** together enable tele-operated dual-arm and large-space *** the experiments,a human tele-operator controls the two mobile robots to perform tasks such as handover,long object manipulation,and cooperative *** results demonstrated the effectiveness of the proposed system,resulting in extending the human body to a large space while keeping the benefits of having two limbs.

关键词： system Extension enable

Electroacupuncture improves neuronal function by stimulation of ascending peripheral nerve conduction in rats with spinal cord injury

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Journal of Traditional Chinese Medicine 2019年第4期39卷 509-515页

作者： Song Meng Chen Wu Kamiie Junichi Okuno Seiichi Orito kensuke Laboratory of Physiology II School of Veterinary MedicineAzabu UniversityFuchinobeSagamiharaKanagawa 229-8501Japan Beijing Key Laboratory of Traditional Chinese Veterinary Medicine Beijing University of AgricultureBeijing 102202China Laboratory of Pathology School of Veterinary MedicineAzabu UniversityFuchinobeSagamiharaKanagawa 229-8501Japan Veterinary Clinic of Neurology 892-1 Tanaka-machiIsesakiGunma 372-0814Japan

OBJECTIVE: To establish a method of transient sciatic nerve blockade and to examine the involvement of the ascending peripheral nerve pathway in the therapeutic effect of electroacupuncture at Zusanli(ST 36) in rats with spinal cord injury(SCI).METHODS: We examined the transient effect of daily lidocaine administration into the posteromedial part of the greater trochanter on sciatic nerve function using electrophysiological examination and histopathology of the sciatic nerve. Rats were divided into three groups: an SCI group(SCI without treatment), an SCI with electroacupuncture treatment(SCI-EA) group, and an SCI with nerve block and electroacupuncture(SCI-NB-EA) group(nerve block was achieved by lidocaine administration to transiently block the ascending peripheral nerve pathway). Behavioral tests and electrophysiological examinations were performed to evaluate recovery of neurological ***: Sciatic nerve conduction was normal immediately before daily lidocaine *** analysis also indicated normal sciatic nerve, confirming that lidocaine nerve blockade was suitable and reversible for transiently eliminating nerve transmission. Neurological function in the SCI-EA group was superior to that in the SCI group, while no differences were found between the SCI and SCI-NB-EA ***: Electroacupuncture treatment can promote recovery of neurological function. Facilitation of nerve conduction may play an important role in this recovery.

关键词： Electroacupuncture Spinal cord injuries Nerve conduction Electrophysiology Lidocaine