检索结果-南通市图书馆

Current and future trends in whole genome sequencing in cancer

在线全文

学校读者我要写书评

暂无评论

Cancer Biology & Medicine 2024年第1期21卷 16-20页

作者： yuki Katsuya Department of Experimental Therapeutics National Cancer Center Hospital5-1-1 TsukijiChuo-kuTokyo 104-0045Japan

Cancer remains a formidable global health challenge affecting millions of lives *** decades,conventional cancer treatments used a one-size-fits-all approach,overlooking the intricate genetic variations that drive *** emergence of cancer genomics has ushered in a new era of personalized and targeted cancer *** Human Genome Project,which was launched in 1990 and completed in 2003。

关键词： cancer Cancer annually

High-speed playback of spatiotemporal division multiplexing holographic 3D video stored in a solid-state drive using a digital micromirror device

在线全文

学校读者我要写书评

暂无评论

Chinese Optics Letters 2021年第9期19卷 121-126页

作者： Kohei Suzuki Minori Tao yuki maeda Hirotaka Nakayama Ren Noguchi Minoru Oikawa Yuichiro Mori Takashi Kakue Tomoyoshi Shimobaba Tomoyoshi Ito Naoki Takada Graduate School of Integrated Arts and Sciences Kochi UniversityKochi 780-8520Japan Faculty of Science Kochi UniversityKochi 780-8520Japan National Astronomical Observatory of Japan Tokyo 181-8588Japan Research and Education Faculty Kochi UniversityKochi 780-8520Japan Graduate School of Engineering Chiba UniversityChiba 263-8522Japan

We propose a high-speed playback method for the spatiotemporal division multiplexing electroholographic three-dimensional(3D)video stored in a solid-state drive(SSD)using a digital micromirror *** spatiotemporal division multiplexing electroholography prevents deterioration in the reconstructed 3D video from a 3D object comprising many object *** the proposed method,the stored data is remarkably reduced using the packing technique,and the computer-generated holograms are played back at high ***,we successfully reconstructed a clear 3D video of a 3D object comprising approximately 1,100,000 points at 60 frames per second by reducing the reading time of the stored data from an SSD.

关键词： spatiotemporal division multiplexing electroholography digital micromirror device computer-generated hologram high-speed playback

Color representation method using RGB color binary-weighted computer-generated holograms

在线全文

学校读者我要写书评

暂无评论

Chinese Optics Letters 2018年第8期16卷 25-29页

作者： Masato Fujiwara Naoki Takada Hiromitsu Araki Shohei Ikawaa yuki maeda Hiroaki Niwase Minoru Oikawa Takashi Kakue Tomoyoshi Shimobaba Tomoyoshi Ito Graduate School of h~teg＇rated Arts and Sciences Kochi University Kochi 780-8520 Japan 2Science Department Natural Sciences Cluster Research and Education Faculty Kochi University Kochi 780-8520 Japa Faculty of Science Kochi University Kochi 780-8520 .lapan IGraduate School of Engineering Chiba University Chiba 263-8522 Japan

We propose a method for color electroholography using a simple red-green-blue （RGB） gradation representa- tion method without controlling the respective brightness of tile reference RGB-colored lights. The proposed method uses RGB multiple bit planes comprising RGB binary-weighted computer-generated holograms with various light transmittanees. The object points of a given three-dimensional （3D） object are assigned to RGB nmltiple bit planes according to their RGB gradation levels. The RGB multiple bit planes are sequentially displayed in a tim-division-multiplexe- manner. Consequently, the proposed method yields a color gradation representation of a reconstructed 3D object.

关键词： RGB Color representation method using RGB color binary-weighted computer-generated holograms CGH

Optimization of body configuration and joint-driven attitude stabilization for transformable spacecraft under solar radiation pressure

在线全文

学校读者我要写书评

暂无评论

Astrodynamics 2024年第1期8卷 47-60页

作者： yuki Kubo Toshihiro Chujo Institute of Space and Astronautical Science Japan Aerospace Exploration AgencyKanagawa252-5210Japan Department of Mechanical Engineering Tokyo Institute of TechnologyTokyo152-8550Japan

The solar sail is one of the most promising space exploration systems due to its theoretically infinite specific impulse achieved through solar radiation pressure(SRP).Recently,researchers have proposed“transformable spacecraft”capable of actively reconfiguring their body configurations using actuatable *** spacecraft,if used similarly to solar sails,are expected to significantly enhance orbit and attitude control capabilities owing to their high redundancy in control degrees of ***,controlling them becomes challenging due to their large number of inputs,leading previous researchers to impose strong constraints to limit their potential control *** study focuses on novel attitude control techniques for transformable spacecraft under *** developed two methods,namely,joint angle optimization to obtain arbitrary SRP force and torque,and momentum damping control driven by joint angle *** proposed methods are formulated in a general manner and can be applied to any transformable spacecraft comprising front faces that can predominantly receive the SRP on each *** validity of our proposed method is confirmed through numerical *** study contributes to making most of the high control redundancy of transformable spacecraft without the need for expendable propellants,thus significantly enhancing the orbit and attitude control capabilities.

关键词： solar sail transformable spacecraft attitude-joint coupled motion attitudestabilization

Gradation representation method using a binary-weighted computer-generated hologram based on pulse-width modulation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Optics Letters 2017年第6期15卷 46-49页

作者： Masato Fujiwara Naoki Takada Hiromitsu Araki Chun Wei Ooi Shohei Ikawa yuki maeda Hiroaki Niwase Takashi Kakue Tomoyoshi Shimobaba Tomoyoshi Ito Graduate School of Integrated Arts and Sciences Kochi University Kochi 780-8520 Japan Science Department Natural Sciences Cluster Research and Education Faculty Kochi University Kochi 780-8520 Japan Faculty of Science Kochi University Kochi 780-8520 Japan Graduate School of Engineering Chiba University Chiba 263-8522 Japan

We propose a simple gradation representation method using a binary-weighted computer-generated hologram（CGH） to be displayed on a high-speed spatial light modulator that can be controlled by the pulse-width modulation technique. The proposed method uses multiple bit planes comprising binary-weighted CGHs with various pulse widths. The object points of a three-dimensional（3D） object are assigned to multiple bit planes according to their gray levels. The bit planes are sequentially displayed in a time-division-multiplexed ***, the proposed method realizes a gradation representation of a reconstructed 3D object.

关键词： reconstructed displayed gradation modulator sequentially colors manner assigned camera calculating

Fast time-division color electroholography using a multiple-graphics processing unit cluster system with a single spatial light modulator

在线全文

学校读者我要写书评

暂无评论

Chinese Optics Letters 2017年第12期15卷 34-37页

作者： Hiromitsu Araki Naoki Takada Shohei Ikawa Hiroaki Niwase yuki maeda Masato Fujiwara Hirotaka Nakayama Minoru Oikawa Takashi Kakue Tom oyoshi Shim obaba and Tom oyoshi Ito Graduate School of Integrated Arts and Sciences Kochi Universit y Kochi 780-8520 Japan Science Department Natural Sciences Cluster Research and Education Faculty Kochi University Kochi 780-8520 Japan Faculty of Science Kochi University Kochi 780-8520 Japan Center for Computational Astrophysics National Astronomical Observatory of Japan Mitaka-shi 181-8588 Japan Graduate School of Engineering Chiba University Chiba 263-8522 Japan

We demonstrate fast time-division color etectroholography using a multiple-graphics-processing-unit （GPU） cluster system with a spatial light modulator and a controller to switch the color of the reconstructing light. The controller comprises a universal serial bus module to drive the liquid crystal optical shutters. By using the controller, the computer-generated hologram （CGH） display node of the multiple-GPU cluster system synchronizes the display of the CGH with the color switching of the reconstructing light. Fast time-division color electroholography at 20 fps is realized for a three-dimensional object comprising 21,000 points per color when 13 GPUs are used in a multiple-GPU cluster system.

关键词： GPU RGB Fast time-division color electroholography using a multiple-graphics processing unit cluster system with a single spatial light modulator CGH

Laser-assisted direct roller imprinting of large-area microstructured optical surfaces

在线全文

学校读者我要写书评

暂无评论

Microsystems & Nanoengineering 2024年第1期10卷 257-266页

作者： Keisuke Nagato Ken Takahashi yuki Yajima Masayuki Nakao Department of Mechanical Engineering Graduate School of EngineeringThe University of Tokyo7-3-1 HongoBunkyo-kuTokyo 113-8656Japan

In this study,a high-throughput fabrication method called laser-assisted direct roller imprinting(LADRI)was developed to lower the cost of nanoimprinting large-area polymer films and to address problems associated with nanoimprinting,namely,microstructural damage and precision in flatness of entire *** LADRI,the laser directly heats the microstructured surface of the roller mold,which heats and melts the surface of a polymethyl methacrylate(PMMA)film to replicate the microstructures on the mold *** this study,the effects of laser power density,scanning speed,size of the microstructures,and contact pressure on the replication speed were investigated *** replication speed increased as the power and scanning speed ***,because the film required heating until it filled the entire depth of the microstructure,an appropriate replication speed was *** result was supported by simulation of the temperature distribution inside the mold and the PMMA using transient heat conduction *** demonstrate the applications of LADRI,two different optical surfaces were replicated:an antireflection(AR)structure with conical structures sized several hundred nanometers and a lightextraction structure with a microlens array(MLA)comprising 10μm lenses,for display and illumination,*** replication degree of the MLA was governed by the contact *** flow simulation indicated that the heat conduction and flow speeds of the melted PMMA surface were comparable within several tens of *** addition,the reflectivity of the AR structure decreased from 4 to 0.5%,and the light intensity of the light-extraction structure increased by a factor of 1.47.

关键词： microstructure roller conduction

Carbon dioxide insufflation in esophageal endoscopic submucosal dissection reduces mediastinal emphysema: A randomized, double-blind, controlled trial

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2016年第32期22卷 7373-7382页

作者： yuki maeda Dai Hirasawa Naotaka Fujita Tetsuya Ohira Yoshihiro Harada Taku Yamagata Yoshiki Koike Kenjirou Suzuki Department of Gastroenterology Sendai City Medical Center Sendal 983-0824 Japan Miyagi Medical Check-up Plaza Sendai 984-0015 Japan

AIM To assess the efficacy of CO2 insufflation for reduction of mediastinal emphysema(ME) immediately after endoscopic submucosal dissection(ESD).METHODS A total of 46 patients who were to undergo esophageal ESD were randomly assigned to receive either CO2 insufflation(CO2 group, n = 24) or air insufflation(Air group, n = 22). Computed tomography(CT) was carried out immediately after ESD and the next morning. Pain and abdominal distention were chronologically recorded using a 100-mm visual analogue scale(VAS). The volume of residual gas in the digestive tract was measured using CT imaging. RESULTS The incidence of ME immediately after ESD in the CO2 group was significantly lower than that in the Air group(17% vs 55%, P = 0.012). The incidence of ME the next morning was 8.3% vs 32% respectively(P= 0.066). There were no differences in pain scores or distention scores at any post-procedure time points. The volume of residual gas in the digestive tract immediately after ESD was significantly smaller in the CO2 group than that in the Air group(808 m L vs 1173 m L, P = 0.013).CONCLUSION CO2 insufflation during esophageal ESD significantly reduced postprocedural ME. CO2 insufflation also reduced the volume of residual gas in the digestive tract immediately after ESD, but not the VAS scores of pain and distention.

关键词： Endoscopic submucosal dissection Carbon dioxide insufflation Mediastinal emphysema Superficial esophageal cancer Complication

Controlling a peristaltic robot inspired by inchworms

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biomimetic Intelligence & Robotics 2024年第1期4卷 88-96页

作者： Yanhong Peng Hiroyuki Nabae yuki Funabora Koichi Suzumori Department of Information and Communication Engineering Graduate School of EngineeringNagoya UniversityNagoya 464-8601Japan Department of Mechanical Engineering Tokyo Institute of TechnologyTokyo 152-8550Japan

This study presents an innovative approach in soft robotics,focusing on an inchworm-inspired robot designed for enhanced transport *** explore the impact of various parameters on the robot’s performance,including the number of activated sections,object size and material,supplied air pressure,and command execution *** a series of controlled experiments,we demonstrate that the robot can achieve a maximum transportation speed of 8.54 mm/s and handle loads exceeding 100 g,significantly outperforming existing models in both speed and load *** findings provide valuable insights into the optimization of soft robotic design for improved efficiency and adaptability in transport *** research not only contributes to the advancement of soft robotics but also opens new avenues for practical applications in areas requiring precise and efficient object *** study underscores the potential of biomimetic designs in robotics and sets a new benchmark for future developments in the field.

关键词： McKibben artificial muscles Bionics Soft robotics Soft actuator Bio-inspired robotics