Search Results 1-20 of 690

  • Development of Turbidity Monitoring Methods Over the Coastal Zone Using Aerial Drone : Case Study in the Estuary of Tokoro, Hokkaido, Japan, After Low Pressure Events

    朝隈 康司 , 大宮 千尋 , 喜田 直人 , 北村 充彰 , Koji Asakuma , Chihiro Omiya , Naoto Kida , Mitsuaki Kitamura

    … This study aimed to develop a turbidity monitoring method using only an aerial drone, that does not require a special device, targeting the estuary of the Tokoro River flowing through the Tokoro Town located in east Hokkaido. …

    東京農業大学農学集報 = Journal of agriculture science, Tokyo University of Agriculture 64(4), 116-126, 2020-03

    IR 

  • New Device for Securing Nasotracheal Intubation Tube During Oral and Maxillofacial Surgery

    Koshika Kyotaro , Hoshino Tatsuki , Shibata Yasunori , Ouchi Takashi , Koitabashi Toshiya

    … <p>Since 2018, we have been using a 3D printer to fabricate a proprietary device for fixing nasotracheal tubes. … The aim of this retrospective study was to investigate the impact of this nasotracheal intubation (NTI) fixation device. … This fixation device offers three advantages: safety, no impediment to surgery, and minimal invasiveness. …

    The Bulletin of Tokyo Dental College, 2020

    J-STAGE 

  • Flicking: variable sampling method for chemical plume tracing by an autonomous robot  [in Japanese]

    OKAJIMA Kei , SHIGAKI Shunsuke , SANADA Kazushi , KURABAYASHI Daisuke

    … <p>In this paper, we proposed a sampling mechanism with flicking motion for chemical plume tracing (CPT). … We expected the flicking provided variable sampling resolutions according to searching phases. … We first design and implemented a variable air sampling mechanism that gave flicking ability to an autonomous mobile robot. … For the action phases, we tested the all combinations of wide or narrow range of the sampling system. …

    Transactions of the JSME (in Japanese) 86(887), 19-00340-19-00340, 2020

    J-STAGE 

  • Timing of Communication Device Introduction Defined by ALSFRS-R Score in Patients with Amyotrophic Lateral Sclerosis

    Nobematsu Ayumi , Takahashi Kayoko

    … In this study, we examined the usefulness of the ALS functional rating scale-revised (ALSFRS-R) for predicting the timing of device introduction. … This study was a retrospective cross-sectional study with consecutive sampling of patients diagnosed with ALS who underwent rehabilitation at Kitasato University East Hospital between 2011 and 2018. …

    Progress in Rehabilitation Medicine 5(0), n/a, 2020

    J-STAGE 

  • Semi-Automated Sampling System for the Calibration of Traction and Grip Force Measurable Forceps Using Unbiased Samples  [in Japanese]

    Hara Kazuaki , Sakuma Ichiro , Kobayashi Etsuko , Yamamoto Kenzo , Ando Takehiro , Tsukihara Hiroshi , Nakagawa Keiichi , Tomii Naoki , Akagi Yuki , Takeshita Nobuyoshi , Ito Masaaki

    … Here, we proposed a semi-automated sampling system for collecting unbiased samples from a FMF with 4DOF. … Sampling took around 10 seconds on average (n=1535). … We conclude that these results show the efficiency and accuracy of the proposed device, when compared to the conventional standard methodology.</p> …

    Journal of Japan Society of Computer Aided Surgery 22(2), 102-110, 2020

    J-STAGE  Ichushi Web 

  • A Wideband Real-Time Deception Jamming Method for Countering ISAR Based on Parallel Convolution

    TAI Ning , LIN Huan , WEI Chao , LU Yongwei , WANG Chao , CUI Kaibo

    … In theory, the bandwidth of jamming signal can be half of the sampling frequency of high speed ADC, making the proposed jamming algorithm able to counter ultra-wideband ISAR signals. … This jamming method is real-time and capable of producing a false target of large size at the low cost of FPGA device.</p> …

    IEICE Transactions on Communications E103.B(5), 609-617, 2020

    J-STAGE 

  • Examination of oral scratch cytology by liquid-based cytology and usefulness of Orcellex Brush<sup>RT</sup>: A single-institution study of an approach to standardization  [in Japanese]

    UMEZAWA Takashi , SUZUKI Eri , UMEMORI Miyaka , MIHARU Keisuke , ITOU Satoshi , HIROOKA Shinichi , TSUKUMO Yoko , SAWABE Motoji

    … <p>Objective: The objective of this study is to standardize cell sampling and specimen processing and to improve the quality of cytologic preparations for oral brushing cytodiagnosis. … A specimen from each lesion was collected with five rotations of the shaft of the Orcellex Brush<sup>RT</sup>, and the tip of the device was placed in a dedicated BD SurePath<sup>TM</sup> …

    Japanese Journal of Medical Technology 69(2), 152-159, 2020

    J-STAGE  Ichushi Web 

  • Development of a Method for Sampling Personal Exposure to Organic Solvent Vapor Using Layered Activated Carbon Fiber Passive Sampler in Workers  [in Japanese]

    Miyauchi Hiroyuki

    … <p>In order to highlight the advantages of personal chemical exposure sampling methods for assessing exposure risks in manufacturing settings, an easy-to-operate layered passive sampler based on activated carbon fiber (ACF) is developed in this study. … Experiments are conducted to determine the effectiveness of ACF for absorbing toluene organic solvent vapor, which is widely used in Japanese manufacturing, as well as the retention ability of the sampling device. …

    Journal of Japan Society for Safety Enginennring 59(1), 27-32, 2020

    J-STAGE 

  • Predicting recurrence of depression using lifelog data: an explanatory feasibility study with a panel VAR approach

    Kumagai Narimasa , Tajika Aran , Hasegawa Akio , Kawanishi Nao , Horikoshi Masaru , Shimodera Shinji , Kurata Ken'ichi , Chino Bun , Furukawa Toshi A.

    … Methods: We collected digital data consisting of individual activity records such as location or mobility information (lifelog data) from 89 patients who were on maintenance therapy for depression for a year, using a smartphone application and a wearable device. … however, the convenient sampling of the present cohort may limit the scope towards drawing a generalised conclusion. …

    BMC Psychiatry (19), 2019-12-11

    IR 

  • The Impact of Wearable Data Quality on Activity Recognition Accuracy  [in Japanese]

    宮澤 勇貴

    … For a data stream from a single device, the time intervals between samples change greatly around a sampling frequency specified in a sensing program. … The position shift of a device can affect much on the recognition accuracy, but this affect may be mitigated when using multiple devices together for recognition. …

    法政大学大学院紀要. 情報科学研究科編 (14), 1-6, 2019-03-31

    IR  DOI 

  • Development of an Automatic Rainfall Classification Sampling Device  [in Japanese]

    笠井 利浩 , 野村 利空

    福井工業大学研究紀要 Memoirs of Fukui University of Technology (49), 126-131, 2019

  • Development of measurement device of static friction coefficient between fixed coupling surfaces  [in Japanese]

    INAGAKI Fumihiko , MORITA Noboru , HIDAI Hirofumi , MATSUSAKA Souta , OHMORI Tatsuo , SHIMIZU Shinji , CHIBA Akira , MATSUMOTO Yuichiro

    … There are many research regarding the static friction coefficient, however, they are not applicable for combination of the parameters of the coupling surfaces because of the problems of their measurement device. … Therefore, in this paper, we developed new measurement device for static friction coefficient between fixed coupling surfaces which solves problems of the former devices. …

    The Proceedings of The Manufacturing & Machine Tool Conference 2019.13(0), C29, 2019

    J-STAGE 

  • A New Technique for Mechanically Extracting a Carbon Nanotube  [in Japanese]

    FUKUI Akihito , BEPPU Ko , NAMAZU Takahiro

    … Finally, the picked-up CNT is fixed on the stage of the tensile testing device. … By using the sampling technique, we have successfully carried out uniaxial tensile test of CNT bundles with nano-submicron diameters.</p> …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), J22307P, 2019

    J-STAGE 

  • Development of Rover with ARLISS Requirements and the Examination of the Rate of Acceleration that Causes Damages During a Rocket Launch

    Saito Takuya , Akiyama Miho

    … however, because the CanSat is a small-embedded device, an acceleration sensor with a wide measurement range and a high sampling frequency could not be used. … In this study, we measure the acceleration applied to the rover from the launch till it drops on the ground using an acceleration sensor with a wider measurement range, and by acquiring data at a higher sampling frequency than before. …

    Journal of Robotics and Mechatronics 31(6), 913-925, 2019

    J-STAGE 

  • Development of the high precision measurement device of static friction characteristics between surfaces at the fixed coupling section  [in Japanese]

    INAGAKI Fumihiko , MORITA Noboru , HIDAI Hirofumi , MATSUSAKA Souta , OHMORI Tatsuo , SHIMIZU Shinji , CHIBA Akira , MATSUMOTO Yuichiro

    … In this paper, we report a novel device we developed for measuring the static friction coefficient between fixed coupling surfaces which solves problems of the conventional devices. … The new device enabled stable surface contact and uniform surface pressure by deploying the bearing unit with aligning function at the loading system. … Moreover, the peak of the frictional force was successfully captured by choosing the proper sampling rate on data logger. …

    Transactions of the JSME (in Japanese) 85(878), 19-00275-19-00275, 2019

    J-STAGE 

  • PROPOSAL OF PENETRATION TEST FOR GEOTECHNICAL INVESTIGATION OF SEABED USING VIBRATION AND DEVELOPMENT OF PROTOTYPE EQUIPMENT  [in Japanese]

    TANI Kazuo , IKEYA Tsuyoshi , HAYASHI Fumiyasu , INAZU Daisuke

    … <p> A new sounding method, named Vibro Sampling and Cone Penetration Test (VS-CPT) was proposed as an economical and effective geotechnical investigation method for shallow ground about 20 meters below seafloor.</p><p> A series of experiments of penetration tests in a model sand bed were conducted to study a proper shape of the probe that reduce penetration resistance and assure sample retrieval. …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 75(2), I_187-I_192, 2019

    J-STAGE 

  • Device-Free Targets Tracking with Sparse Sampling: A Kronecker Compressive Sensing Approach

    YANG Sixing , GUO Yan , YU Dongping , QIAN Peng

    … <p>We research device-free (DF) multi-target tracking scheme in this paper. … In this paper, we exploit the sparse property of multiple target locations to achieve target trace accurately with much less sampling both in the wireless links and the time slots. …

    IEICE Transactions on Communications E102.B(10), 1951-1959, 2019

    J-STAGE 

  • A fast maximum power point tracking boost converter with 80 ns sampling and tracking time for energy harvesting application

    Lee Sangkwon , Jeong Jinseong

    … A novel current conservation technique is utilized to sample open-circuit voltage of energy harvesting device without any unnecessary power loss during MPPT operation. … Fabricated in 0.35 µm CMOS process, the proposed converter achieves a sampling and tracking time of 80 ns for MPPT. …

    IEICE Electronics Express 16(18), 20190456-20190456, 2019

    J-STAGE 

  • Quantitative Determination of 2-Ethyl-1-hexanol, Texanol and TXIB in In-door Air Using a Solid-Phase Extraction-type Collection Device Followed by Gas Chromatography–Mass Spectrometry

    UETA Ikuo , TAKENAKA Risa , FUJIMURA Koji , NARUKAMI Shoji , SASAKI Tomohiro , MAEDA Tsuneaki

    … <p>In this study, in-door air semi-volatile organic compounds (SVOCs) including 2-ethyl-1-hexanol, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate (texanol), and 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (TXIB), which are scheduled for adding as regulated compounds concerning indoor air reference values in Japan, were quantitatively extracted using a solid-phase extraction-type collection device, followed by sensitively determined by gas chromatography–mass spectrometry. …

    Analytical Sciences 35(8), 855-859, 2019

    J-STAGE 

  • Development on determination method of acrylamide in indoor air and its application  [in Japanese]

    MATSUMURA Toshiro , IKUTA Mika , MORITA Yukitoki , SHIKAMA Misao , NISHIKATA Yasuyoshi , IMANAKA Tsutoshi , YAMASITA Yoichi

    … The repeatability was 4.6% in relative standard deviation the lower limit of quantification was 11.9 ng/m<sup>3</sup>(1 L/min x 24 hours, 1440 L sampling). …

    Indoor Environment 22(2), 185-190, 2019

    J-STAGE 

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