检索结果-内蒙古大学图书馆

World Congress on Medical Physics and Biomedical engineering

作者： Zhang, B. Sun, J.W. Chi, Z.Y. Sun, S.B. Meng, S. Zhang, Y. Rolfe, P. Dept. Automatic Measure and Control Harbin Institute of Technology Harbin China Dept. Electrical and Electronic Engineering Harbin University of Science and Technology Harbin China Dept. of Orthopedics Harbin Medical University Harbin China

ISBN: (纸本)9783642293047

Pre-operative planning in orthopedic surgery is essential to identify the optimal surgical considerations for each patient-specific case. Estimation of the three-dimensional (3D) pose of bones plays an important role in computer assisted diagnosis and surgery. However, understanding the 3D pose of femoral fractures on plain radiographs is challenging, and 3D imaging modalities such as Computed Tomography (CT) are still being restricted to a minority of complex orthopedic procedures. Although the existing application has focused on registering a 3D model of the bone to the images of the same bone intra-operatively, pre-operative 3D pose estimation is more valuable for surgery planning. This paper proposes a method for recovering 3D pose by registering a preoperatively prepared generic 3D model of a bone to bi-planar (frontal and lateral) digital radiographs (DR images) of different patients. It can perform 3D-2D registration with unknown correspondence automatically without invasive external fiducial markers. This 3D-2D registration will identify the position and orientation of the femur in six degrees (Rx,Ry,R z,tx,ty,tz) of freedom. Validation results using different femurs show that this method is robust and accurate in estimating the 3D pose of femurs in bi-planar radiographs of different patients. © 2013 Springer-Verlag.

关键词： Bone

来源：评论

学校读者我要写书评

暂无评论

Task and Motion Planning for Selective Weed Conrol using a Team of Autonomous Vehicles

Task and Motion Planning for Selective Weed Conrol using a T...

引用

International Conference on control, Automation, robotics & Vision

作者： I A Hameed A la Cour-Harbo K D Hansen Aalborg University Faculty of Engineering and Science Dept. of Electronic Systems Section of Automation and Control Fredrik Bajers Vej 7C 9220 Aalborg Denmark

ISBN: (纸本)9781479952007

Conventional agricultural fields are sprayed uniformly to control weeds, insects, and diseases. To reduce cultivation expenses, to produce healthier food and to create more environmentally friendly farms, chemicals should only be applied to the right place at the right time and exactly with the right amount. In this article, a task and motion planning for a team of autonomous vehicles to reduce chemicals in farming is presented. Field data are collected by small unmanned helicopters equipped with a range of sensors, including multispectral and thermal cameras. Data collected are transmitted to a ground station to be analyzed and triggers aerial and ground-based vehicles to start close inspection and/or plant/weed treatment in specified areas. A complete trajectory is generated to enable ground-based vehicle to visit infested areas and start chemical/mechanical weed treatment.

关键词： path planning turning trajectory motion control ASETA

来源：评论

学校读者我要写书评

暂无评论

A study on the wind power grade selection of the wind power generator for the west coast of korea

A study on the wind power grade selection of the wind power ...

引用

European Wind Energy Conference and Exhibition, EWEC 2013

作者： Jeong, Moon-Seon Moon, Chae-Joo Kim, Tae-Gon Park, Byeong-Ju Chang, Young-Hak Dept. of Electrical Engineering College of Mokpo National University 61 Dorim-ri Cheonggye-myeon Muan-gun Jeonnam Korea Republic of Dept. of Control Robot Engineering College of Mokpo National University 61 Dorim-ri Cheonggye-myeon Muan-gun Jeonnam Korea Republic of

ISBN: (纸本)9781632663146

The world is largely interested in the new regenerative energy development as the alternative of the high oil prices and especially, the wind generation is gaining a large fame as a newly developing power among the new regenerative energy sources. Currently, Korea is building onshore wind farms in many areas and the number is expected to increase. The designed lifespan of the wind generator is over 20 years as required by the international regulations, but Korea has very little information on the grades of the wind generators. This study performed the research on the safety levels of wind generators using the measured data in the West Coast of Korea. The targeted areas are 4 sites on the west coast and the Met mast is installed for the future offshore wind farms. The data were accumulated for a year and the safety level of the wind turbine was set based on the international regulation of IEC 61400-1. The turbulence intensity analysis was carried out based on the values and equations selected by IEC 61400-1 and the actual data while the extreme wind speeds were analyzed using the Gumbel distribution. As a result, the WangDeungYeo area was Class II-C, DaeNoNokDo area was Class III-C, BiGeumDo area was Class III-C, and Jukdo are was Class III-C. When the offshore wind farms are established in the future, this will be provided as the basic data for the wind turbine selection.

关键词： Offshore wind farms

来源：评论

学校读者我要写书评

暂无评论

A dept. Based Mode Decision Algorithm for 3D Video Coding

A Depth Based Mode Decision Algorithm for 3D Video Coding

引用

International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIHMSP)

作者： Huan Dou Kebin Jia Dept. of Electronic Information & Control Engineering Beijing University of Technology Beijing China

This paper analyzes the relationship between macro block (MB) modes and dept. values in multiview video plus dept. (MVD) format, and proposed a dept. based mode decision algorithm for 3D video coding. The dept. information was utilized to determine the final mode decision process. The experimental results show the proposed algorithm can reduce the complexity of the mode decision process remarkably while maintaining nearly the same rate distortion performance.

关键词： Video coding Three-dimensional displays Encoding Partitioning algorithms Complexity theory Algorithm design and analysis Bit rate

来源：评论

学校读者我要写书评

暂无评论

C3(Creativity, Capability, and Challenge) activities of Innovation Center for engineering Education

C3(Creativity, Capability, and Challenge) activities of Inno...

引用

2013 2nd IEEE International Conference on Teaching, Assessment and Learning for engineering, TALE 2013

作者： Lim, Jung-Min Kim, Soo-Chan Lee, Chang-Ho Innovation Center for Engineering Education Hankyong National University Anseong-si Gyeonggi-do Korea Republic of Dept. of Electrical Electronic and Control Engineering Hankyong National University Anseong-si Gyeonggi-do Korea Republic of Dept. of Architecture and Architectural Engineering Innovation Center for Engineering Education Hankyong National University Anseong-si Gyeonggi-do Korea Republic of

ISBN: (纸本)9781467363556

The Innovation Center for engineering Education (ICEE) at Hankyong National University in Korea has managed the engineering education support projects since 2008. The purpose of the paper is to provide the overview of the engineering education support projects, and also to briefly discuss the outcomes. The goal of the project is 'Cultivating 21st century challenging students with creative thoughts, practical skills, and future-oriented spirit of challenge,' which can be simplified as 'C3 (Creativity, Capability, and Challenge).' Creativity-Fostering Education, Practical Skill Improvement Education, Future-Oriented Spirit of Challenge, and Innovation of engineering Education Support System are categories of the project in progress. The activities of the categories are explained and the outcomes are discussed. © 2013 IEEE.

关键词： engineering education

来源：评论

学校读者我要写书评

暂无评论

Artificial neural network-based forest fire detection system using wireless sensor network

Artificial neural network-based forest fire detection system...

引用

IEEE India Conference (INDICON)

作者： Anamika Chauhan Sunil Semwal Rajneesh Chawhan Dept. of Instrumentation & Control Engineering Graphic Era University Dehradun India Dept. of Electronic & Communication Engineering Meerut Institute of Engineering & Technology Meerut India

In this paper, the problem of forest fire is considered and a comprehensive system is proposed with the use of wireless sensor network for real-time forest fire detection. The wireless sensor network can give more accurate detection of forest fire danger rate over traditional monitoring approaches like lookout towers and satellite based monitoring. This proposed framework mainly describes the data collection from designed data acquisition system and then its classification. The wireless transmission of sensor node data is done using BTBee module. Also artificial neural networks (ANN) approach, i.e. support vector machine (SVM) is applied for classification of collected data. Classification accuracy is evaluated and compared for various Kernel functions including multilayer perceptron (MLP), polynomial, quadratic and radial basis function (RBF).

关键词： Fires Wireless sensor networks Wireless communication Support vector machines Temperature measurement Temperature sensors Humidity

来源：评论

学校读者我要写书评

暂无评论

On Visualization of Micro-movement of Formant Tracks on Vowel Space

On Visualization of Micro-movement of Formant Tracks on Vowe...

引用

International Congress on Image and Signal Processing

作者： Cheolwoo Jo Osho Gupta Dept. of Control & Instrumentation Engineering College of Mechatronics Changwon National University Changwon Korea Dept. of Electronic Engineering IIT-BHU Vanarasi India

ISBN: (纸本)9781479927654

This paper presents a basic research results to visualize the micro-movement of formant tracks for the purpose of using it to analyze speech signal on the research of speech analysis and synthesis etc. Current analysis method on formant is mainly focusing on analysis of static statistical characteristics. But dynamic information about changing vowels is hard to acquire using conventional statistical results such as mean, variance etc. In this experiment we propose a new visualization method to display the dynamic behavior of vowel changes according to the micro movement of formant on vowel space.

关键词： formant visualization vowel space

来源：评论

学校读者我要写书评

暂无评论

Nonlinear Discrete-Time Algorithm for Fractional Derivatives Computation with Application to PI λ D μ controller Implementation

引用

IFAC Proceedings Volumes 2013年第1期46卷 887-892页

作者： Alessandro Pisano Davide Nessi Elio Usai Milan R. Rapaic Dept. of Electrical and Electronic Engineering (DIEE) Univ. of Cagliari Cagliari Italy Faculty of Technical Sciences Computing and Control Dept. University of Novi Sad Novi Sad Serbia

This paper presents a novel algorithm for the numerical computation of fractional-order derivatives, based on a suitable generalization of a sliding-mode based robust and exact first-order differentiator (see Levant (1998)). The method inherits the robustness properties against the measurement noise of the original scheme. The algorithm is first devised in the continuous time setting, leading to a block scheme where conventional and fractional order integrators are suitably combined in a closed loop configuration containing certain “stabilizing” static non-linearities as well. All integrators are discretized by an algorithm of the Adams-Bashforth-Moulton type (cfr. Diethelm et al, (2004)) yielding an overall discrete time form of the proposed fractional differentiator. The algorithm is then applied to derive a discretized implementation formula for the PI λ D μ controller. Simulation and experimental tests are carried out to verify the performance of the proposed algorithm and to compare it with other existing approaches.

关键词： Fractional derivative estimation Sliding mode control Discretized fractional controllers

来源：评论

学校读者我要写书评

暂无评论

Fuzzy visual navigation using behavior primitives for small humanoid robot

Fuzzy visual navigation using behavior primitives for small ...

引用

1st International Conference on robot Intelligence Technology and Applications, RiTA 2012

作者： Kim, Yong-Tae Noh, Su-Hee Dept. of Electrical Electronic and Control Engineering Hankyong National University 327 Joongang-ro Anseong Gyeonggi-do 456-749 Korea Republic of Kohyoung Technology 345-90 Gasan-dong Seoul 153-802 Korea Republic of

ISBN: (纸本)9783642373732

In this paper, we present a fuzzy visual navigation method that uses behavior primitives for humanoid robots. We define behavior primitives that consist of locomotion and motion primitives. The fuzzy navigation system consists of four control algorithms: autonomous walking, target tracking, obstacle avoidance, and behavior control based on marker recognition. We verify the proposed method through navigation experiments by using a developed small humanoid robot. The experimental results demonstrate that the humanoid robot can navigate efficiently and stably to the target and show improved performance of behavior planning for humanoid navigation. © 2013 Springer-Verlag.

关键词： Anthropomorphic robots

来源：评论

学校读者我要写书评

暂无评论

Nonlinear control Design for the Photovoltaic Isolated-Port Architecture with Submodule Integrated Converters

Nonlinear Control Design for the Photovoltaic Isolated-Port ...

引用

IEEE Energy Conversion Congress and Exposition

作者： Yoash Levron Daniel Clement Dragan Maksimovic Carlos Olalla Dept. of Electrical Computer and Energy Engineering University of Colorado at Boulder Boulder CO 80309-0425 USA Dept. of Electronic Electrical and Automatic Control Engineering Universitat Rovira i Virgili Tarragona Spain

ISBN: (纸本)9781479903375

Differential power processing (DPP) isolated-port architecture with submodule integrated converters (subMICs) enables improved energy capture in photovoltaic (PV) power systems. This paper describes a control scheme for flyback subMICs operating in discontinuous conduction mode (DCM). The duty-cycle is driven in proportion to a voltage error, with no further processing, thus eliminating the need to measure or to control the current explicitly. The approach is well suited for very simple, analog PWM controller implementation, but the resulting control loops become nonlinear. The system stability is demonstrated using the Lyapunov stability theorem. Experimentally measured module-level efficiency is greater than 95% for a 72-cell PV module having 3 substrings with solar irradiation of 80%, 60% and 40%, respectively.

关键词： respectively stability substrings submodule PHOTOVOLTAIC substring voltage error design control Converters Energy capture control ring System stability solar radiation Solar Irradiance nonlinear control Lyapunov methods Building construction ARCHITECTURE

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：