检索结果-内蒙古大学图书馆

Investigation of erythrocyte aggregation parameters of blood with low levels of fibrinogen by syllectometry

Journal of Biorheology 2023年第1期37卷 2-8页

作者： Higuchi, Makoto Tanaka, Masayoshi Watanabe, Nobuo Functional Control Systems Course Graduate School of Engineering and Science Shibaura Institute of Technology Saitama Japan Ogino Memorial Laboratory Nihon Kohden Corporation Tokyo Japan Systems Engineering and Science Graduate School of Engineering and Science Shibaura Institute of Technology Saitama Japan

An increase in fibrinogen, a coagulation factor in blood, enhances erythrocyte aggregation. However, no pre-vious studies have fully investigated erythrocyte aggregation at low plasma fibrinogen concentrations (1/2) increased with decreasing fibrinogen concentration (r = –0.827), similar to previously reported results for normal to high fibrinogen concentrations. Relax-ation time (t0) increased exponentially with decreasing fibrinogen concentration (r = –0.608). These results suggest that erythrocyte aggregability decreases with decreasing fibrinogen concentration even at low fibrinogen levels that can cause coagulopathy, and that syllectometry can be used to detect decreases in fibrinogen. © Japanese Society of Biorheology 2023.

关键词： Rheology

来源：评论

学校读者我要写书评

暂无评论

EEG Signal Power Prediction Using DEAP Dataset 7

EEG Signal Power Prediction Using DEAP Dataset

引用

7th International Conference on Intelligent Informatics and Biomedical Sciences, ICIIBMS 2022

作者： Munoz-Gonzalez, Angel Horie, Ryota Shibaura Institute of Technology Functional Control Systems Course Tokyo Japan Shibaura Institute of Technology Dept. of Information and Communications Engineering Tokyo Japan

ISBN: (数字)9781665482295

ISBN: (纸本)9781665482295

When we listen to music, our emotions can change due to changes in our brain response. Because of this, a large number of research projects for classifying the emotional response using brain signals when listening to music through machine learning techniques emerged. On the contrary, to our knowledge, there is no previous research attempting to estimate the dynamic changes in the electroencephalogram (EEG) response under music stimuli through machine learning techniques. Therefore, in this manuscript, we proposed an approach to predict and anticipate changes in the EEG signal under music stimuli. Using the DEAP dataset, we split the EEG response to music stimuli into one-second length frames. After that, we compared the changes in the power of the brain signal of consecutive frames through two one-tailed Wilcoxon rank-sum tests. This test allowed us to label the changes in the second frame as "lower", "similar"or "higher"signal compared to the first frame. Then, we attempted to predict these changes using a Support-Vector Machine (SVM) classifier with stratified 5-fold validation with different input combinations (only music, only brain signal, or a combination of both). Due to the use of multi-label classification with imbalanced data, we measured the results through F1-Scores. Over chance level predictions of the changes of signal power were obtained when using the previous second brain signal for the different channels and bands, especially in the frontal F3 and F4 channels. © 2022 IEEE.

关键词： Electroencephalography

来源：评论

学校读者我要写书评

暂无评论

Discussion of Teleoperation Support System Design Guideline for Working Robot in Radiation Narrow Environment 23

Discussion of Teleoperation Support System Design Guideline ...

引用

23rd International Conference on control, Automation and systems, ICCAS 2023

作者： Kobayashi, R. Yoshimi, T. Graduate School of Engineering and Science Shibaura Institute of Technology Functional Control Systems Course Tokyo135-8548 Japan College of Engineering Shibaura Institute of Technology Department of Electrical Engineering Tokyo135-8548 Japan

ISBN: (纸本)9788993215274

In this work, we propose a design guideline of teleoperation support system for working robots in radiation narrow environments. The proposed guideline is discussed to configure the robot system with as few sensors as possible because of decreasing the sensor failure risk by high radiation. This paper describes discussion results of the guideline candidate, focusing on relationship between the required information for robot teleoperation and number of sensors that consists of the support system. Additionally, we present some support systems that were developed for an inspection or an investigation of nuclear power plants as development cases. As a result of the guideline calculation for each development cases, we confirmed that the proposed guideline increases as the required radiation tolerance is high, and the support system is classified by the guideline. In case that the torelance is more than 200 Gy, available sensors are limited, and a sensor-saving configuration is adopted to decrease the robot failur risk by using in combination with a sensor for the robot operation. © 2023 ICROS.

关键词： Remote control

来源：评论

学校读者我要写书评

暂无评论

Relationship Between Mechanical Deformation and Contact Force Applied by Catheter Tip on Cardiac Muscle: Experimentation and Computer Modeling 5

Relationship Between Mechanical Deformation and Contact Forc...

引用

5th IEEE Eurasia Conference on Biomedical Engineering, Healthcare and Sustainability, ECBIOS 2023

作者： Ijima, Yukako Masnok, Kriengsak Perez, Juan J. Gonzalez-Suarez, Ana Berjano, Enrique Watanabe, Nobuo Master's Program Global Course of Engineering and Science Graduate School of Engineering and Science Shibaura Institute of Technology Saitama Japan Functional Control Systems Graduate School of Engineering and Science Shibaura Institute of Technology Biofluid Science and Engineering Laboratory Saitama Japan Universitat Politecnica de Valencia BioMIT Department of Electronic Engineering Valencia Spain School of Engineering University of Galway Translational Medical Device Lab Galway Ireland Functional Control Systems Graduate School of Engineering and Science College of Systems Engineering and Science Shibaura Institute of Technology Biofluid Science and Engineering Laboratory Department of Bio-Science and Engineering Saitama Japan

ISBN: (纸本)9798350320978

关键词： Catheters

来源：评论

学校读者我要写书评

暂无评论

Discussion of Teleoperation Support System Design Guideline for Working Robot in Radiation Narrow Environment

Discussion of Teleoperation Support System Design Guideline ...

引用

International Conference on control, Automation and systems ( ICCAS)

作者： R. Kobayashi T. Yoshimi Functional Control Systems Course Graduate School of Engineering and Science Shibaura Institute of Technology Tokyo Japan Department of Electrical Engineering College of Engineering Shibaura Institute of Technology Tokyo Japan

关键词：

来源：评论

学校读者我要写书评

暂无评论

Relationship Between Mechanical Deformation and Contact Force Applied by Catheter Tip on Cardiac Muscle: Experimentation and Computer Modeling

Relationship Between Mechanical Deformation and Contact Forc...

引用

IEEE Eurasia Conference on Biomedical Engineering, Healthcare and Sustainability (ECBIOS)

作者： Yukako Ijima Kriengsak Masnok Juan J. Perez Ana González-Suárez Enrique Berjano Nobuo Watanabe Master's Program Global Course of Engineering and Science Graduate School of Engineering and Science Shibaura Institute of Technology Saitama Japan Biofluid Science and Engineering Laboratory Functional Control Systems Graduate School of Engineering and Science Shibaura Institute of Technology Saitama Japan Department of Electronic Engineering BioMIT Universitat Politecnica de Valencia Valencia Spain Translational Medical Device Lab School of Engineering University of Galway Galway Ireland Department of Bio-Science and Engineering Biofluid Science and Engineering Laboratory Functional Control Systems Graduate School of Engineering and Science College of Systems Engineering and Science Shibaura Institute of Technology Saitama Japan

The cardiac muscle is elastic and deformable. Pushing a catheter in contact with the cardiac muscle surface to conduct focal energy-based ablative therapies, such as RF ablation, requires an adequate electrode-tissue contact surface to transfer the energy to the target site. In this regard, the relationship between the contact force (CF) and the resulting mechanical response is still unclear, in particular, the insertion depth (ID) and the diameter of the surface deformation. The objective of this study was to quantify these relationships using an ex vivo model and a computational model. A rigid bar with a 2.3 mm diameter blunt tip (mimicking a 7Fr standard ablation catheter) was placed at a perpendicular orientation on a fragment of the porcine heart. CF values ranged from 10 to 80g. We used ANSYS to build a Mooney-Rivlig model of 3 parameters based on hyperelastic material and to simulate the same conditions as in the experiments. The experimental results showed a strong linear correlation between CF and insertion depth ID ( $\mathrm{R}^{2}=0.97, \mathrm{P} < 0.001$ ), from $0.7 \pm 0.3$ mm at 10 gto $6.9 \pm 0.1$ mm at 80 g. We also found a strong linear correlation between CF and minor and major diameters of the surface deformation assessed, from $4.0 \pm 0.4$ mm at 20 g to $10.3 \pm 0.0$ mm at 80 g ( $\mathrm{R}^{2}=0.96$ ), and from $6.4 \pm 0.7$ mm at 20 g to $16.7 \pm 0.1$ mm at 80 g ( $\mathrm{R}^{2}=0.95$ ), respectively. A descent gradient algorithm was used to minimize the mean square error (MSE) between the experimental and computational results of ID for the 10 values of CF. After trying different combinations for the3 parameters of the Mooney-Rivlig model, an optimal fit was achieved after 5 iterations, with an error of less than 0.55 mm for ID. This same mode was then used to predict the diameter of the surface deformation, obtaining an error of less than 0.65 mm. The results confirm that a Mooney-Rivlig model of three parameters based on

关键词：

来源：评论

学校读者我要写书评

暂无评论

Experiment on Hum Noise Suppression using N-path Notch Filter

Experiment on Hum Noise Suppression using N-path Notch Filte...

引用

2018 International Symposium on Intelligent Signal Processing and Communication systems, ISPACS 2018

作者： Afifah, Khilda Arijal, Muhammad Retdian, Nicodimus Shima, Takeshi Shibaura Institute of technology Dept. of Functional Control Systems Tokyo Japan Global Course of Engineering and Science Shibaura Institute of technology Tokyo Japan Kanagawa University Dept. of Electrical Electronics and Information Engineering Yokohama Japan

ISBN: (纸本)9781538657713

Hum noise activity such as power line noise is one of critical problems in biomedical signals processing. Various approaches both analog or digital techniques have been proposed. However, these approaches have some disadvantages. This paper proposes the N-path notch filter as a hum noise suppression. The notch depth in a conventional N-path notch filter depends on the value of off-resistance in the switch. A new N-path notch filter with additional sample-and-hold (S/H) and leak buffer circuit is proposed. Measurement results show with the additional leak buffer circuit improves the notch depth by 61.25dB. © 2018 IEEE.

关键词： Notch filters

来源：评论

学校读者我要写书评

暂无评论

Evaluation of a use-case-driven requirements analysis tool employing web UI prototype generation

引用

WSEAS Transactions on Information Science and Applications 2010年第2期7卷 273-282页

作者： Ogata, Shinpei Matsuura, Saeko Course of Functional Control Systems Graduate School of Engineering Shibaura Institute of Technology 307 Fukasaku Minuma-ku Saitama-City Saitama 337-8570 Japan Department of Electronic Information Systems College of System Engineering and Science Shibaura Institute of Technology 307 Fukasaku Minuma-ku Saitama-City Saitama 337-8570 Japan

It has been widely acknowledged that ambiguous or incomplete customer requirements are a major reason for the failure of software development projects. A key example of this is the inconsistency between implementation image and specifications provided in the early stages of software development. To address this, we propose a method for automatic generation of user interface prototypes for developing Web-based business applications, based on the requirements specifications defined in the Unified Modeling Language (UML). In this study, we compare the proposed method with traditional use case modeling to evaluate the effectiveness of the proposed method.

关键词： Unified Modeling Language

来源：评论

学校读者我要写书评

暂无评论

A method of automatic integration test case generation from UML-based scenario

引用

WSEAS Transactions on Information Science and Applications 2010年第4期7卷 598-607页

One key to success for high quality enterprise information systems development is to validate the customers' requirements sufficiently at the early stage. Scenarios are an effective means to an end because they make it possible to represent various situations of system usage. Most scenarios are defined by using a natural language or such a formal language as Unified Modeling Language (UML) and describe normal, alternative, and exceptional service flows from the point of view of system usage. As a result, scenarios make it easy for the customers to confirm their requirements intuitively because of the concreteness. On the other hand, based on the V-model, which is well-known software development process and denotes the correspondence of requirement analysis stage to integration test stage, it is desirable that the testers should test the system by using the test cases derived from the validated scenarios. We have proposed a UML-based requirements analysis (RA) model with automatic prototype system generation for enterprise Web application development. This paper proposes a way to efficiently create reliable test cases from the scenarios that have been validated by the customers using the prototype system which was generated by the RA model.

关键词： Integration testing

来源：评论

学校读者我要写书评

暂无评论

Highly accurate geometric correction for NOAA AVHRR data considering the feature of elevation and the feature of coastline

Highly accurate geometric correction for NOAA AVHRR data con...

引用

2008 IEEE International Geoscience and Remote Sensing Symposium - Proceedings

作者： Van, An Ngoc Nakazawa, Mitsuru Aoki, Yoshimitsu Functional Control Systems Course Shibaura Institute of Technology Tokyo 135-8548 Japan Graduate School of Science and Technology Keio Univeristy Kanagawa 223-8522 Japan

ISBN: (纸本)9781424428083

NOAA (National Oceanic and Atmospheric Administration) satellite images have been widely used for environmental and land cover monitoring. This paper proposes a geometrie correction method that corrects the geometric distortions in NOAA images. In this method, the errors in NQAA images are corrected in the image coordinate system before transforming into the map coordinate system. First, the variation of elevation is verified to divide data into flat and rough blocks, Next, in order to measure the distortions more precisely, more GCP (Ground control Point) templates are generated based on the feature of the coastline and the elevation errors of these GCP templates are corrected. After using GCP template matching to specify the residual errors, Which are used to represent the distortions, affine transform and Radial Basis Function transform are used to correct the distortions on the flat and rough blocks, respectively. With the proposed method, the average values of the error after correction are smaller than 0.2 pixels on both latitude and longitude directions. This result proved that the proposed method is a highly accurate geometric Correction method. ©2008 IEEE.

关键词： Errors

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：