检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

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

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

173 篇 会议
28 篇 期刊文献

馆藏范围

201 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

97 篇 工学
- 43 篇 电气工程
- 39 篇 电子科学与技术（可...
- 29 篇 计算机科学与技术...
- 25 篇 软件工程
- 24 篇 控制科学与工程
- 21 篇 信息与通信工程
- 10 篇 仪器科学与技术
- 8 篇 动力工程及工程热...
- 6 篇 力学（可授工学、理...
- 6 篇 机械工程
- 6 篇 化学工程与技术
- 6 篇 生物医学工程（可授...
- 4 篇 光学工程
- 4 篇 土木工程
- 4 篇 石油与天然气工程
- 3 篇 材料科学与工程（可...
- 3 篇 冶金工程
- 3 篇 环境科学与工程（可...
66 篇 理学
- 35 篇 物理学
- 31 篇 数学
- 9 篇 统计学（可授理学、...
- 7 篇 系统科学
- 5 篇 化学
- 3 篇 生物学
7 篇 管理学
- 7 篇 管理科学与工程(可...
- 3 篇 工商管理
5 篇 医学
- 3 篇 基础医学(可授医学...
- 3 篇 临床医学
3 篇 教育学
- 3 篇 教育学
2 篇 经济学
- 2 篇 应用经济学

主题

13 篇 automata
12 篇 discrete-event s...
12 篇 convergence
12 篇 capacitance
12 篇 adaptive filters
12 篇 capacitors
10 篇 control systems
9 篇 computational co...
9 篇 sampling methods
8 篇 fault diagnosis
8 篇 prototypes
8 篇 filter bank
8 篇 signal processin...
8 篇 finite impulse r...
7 篇 electrostatics
7 篇 voltage control
7 篇 algorithm design...
7 篇 generators
7 篇 energy harvestin...
6 篇 equations

机构

13 篇 coppe/ep - elect...
6 篇 ep-department of...
5 篇 electrical engin...
5 篇 electrical engin...
4 篇 coppe-electrical...
4 篇 biomedical engin...
3 篇 coppe - electric...
3 篇 coppe/ep-electri...
3 篇 department of el...
3 篇 lam-computer arc...
2 篇 program of elect...
2 篇 rio de janeiro s...
2 篇 universidade fed...
2 篇 program of elect...
2 篇 program of elect...
2 篇 coppe electrical...
2 篇 biomedical engin...
2 篇 program of elect...
2 篇 department of el...
2 篇 department of el...

作者

16 篇 antonio carlos m...
14 篇 marcos v. moreir...
10 篇 petraglia antoni...
8 篇 p.s.r. diniz
8 篇 m.r. petraglia
7 篇 oumar diene
7 篇 de queiroz anton...
6 篇 felipe g. cabral
6 篇 de campos marcel...
6 篇 sergio l. netto
6 篇 diniz paulo s.r.
6 篇 r.g. alves
5 篇 lilian k. carval...
5 篇 a. petraglia
5 篇 paulo s. r. dini...
5 篇 m.l.r. de campos
4 篇 c.b. ribeiro
4 篇 marcello l. r. d...
4 篇 netto sergio l.
4 篇 josé a. apolinár...

语言

196 篇 英文
3 篇 中文
2 篇 其他

检索条件"机构=Electrical Engineering Program/COPPE"

共 201 条记录，以下是51-60 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Live demonstration: Unipolar symmetrical variable-capacitance generators for energy harvesting 50

Live demonstration: Unipolar symmetrical variable-capacitanc...

引用

50th IEEE International Symposium on Circuits and Systems, ISCAS 2017

作者： De Queiroz, Antonio Carlos M. De Oliveira Filho, Luiz Carlos Macedo COPPE/EP - Electrical Engineering Program Federal University of Rio de Janeiro Rio de Janeiro Brazil EP-Department of Electronic and Computer Engineering Federal University of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (纸本)9781467368520

This demonstration shows a variable-capacitance electrostatic generator made with 3D-printing techniques powering loads through a DC/DC converter. The generator is similar in structure to a microelectromechanical device, and forms an unstable electrostatic generator when connected to a 2-phase diode-capacitor voltage multiplier. As load, a simple bidirectional digital wireless communication system is used. © 2017 IEEE.

关键词： Energy harvesting

来源：评论

学校读者我要写书评

暂无评论

Comparison of CNN and MLP classifiers for algae detection in underwater pipelines

Comparison of CNN and MLP classifiers for algae detection in...

引用

Workshops on Image Processing Theory, Tools and Applications, IPTA

作者： Edgar Medina Mariane R. Petraglia Jose Gabriel R. C. Gomes Antonio Petraglia Electrical Engineering Program Rio de Janeiro Federal University of Rio de Janeiro-COPPE Brazil

Artificial neural networks, such as the multilayer perceptron (MLP), have been increasingly employed in various applications. Recently, deep neural networks, specially convolutional neural networks (CNN), have received considerable attention due to their ability to extract and represent high-level abstractions in data sets. This article describes a vision inspection system based on deep learning and computer vision algorithms for detection of algae in underwater pipelines. The proposed algorithm comprises a CNN or a MLP network, followed by a post-processing stage operating in spatial and temporal domains, employing clustering of neighboring detection positions and a region interception framebuffer. The performances of MLP, employing different descriptors, and CNN classifiers are compared in real-world scenarios. It is shown that the post-processing stage considerably decreases the number of false positives, resulting in an accuracy rate of 99.39%.

关键词： Algae Microsoft Windows Clustering algorithms Feature extraction Histograms Pipelines Inspection

来源：评论

学校读者我要写书评

暂无评论

Biased capacitive divider electrostatic generators for energy harvesting

Biased capacitive divider electrostatic generators for energ...

引用

IEEE Latin American Symposium on Circuits and Systems (LASCAS)

作者： Antonio Carlos M. de Queiroz COPPE/EP-Electrical Engineering Program Federal University of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (纸本)9781509058600

A study is presented about some structures of electrical generators based on variable capacitors, suitable for energy harvesting applications, and compatible with construction as microelectromechanical systems. In the discussed structures, part of the generator has as function the generation of a high biasing voltage, and another part, a capacitive divider where one of the capacitors is variable, is used as the actual generator. It feeds a DC/DC converter that generates the useful output energy at low voltage. The structures add flexibility in the design over previously proposed generators based on Bennet's doubler, and allow greater output power.

关键词： Generators Capacitors Capacitance Power generation Discharges (electric) Electrostatics Micromechanical devices

来源：评论

学校读者我要写书评

暂无评论

Unipolar symmetrical variable-capacitance generators for energy harvesting 60

Unipolar symmetrical variable-capacitance generators for ene...

引用

60th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2017

ISBN: (纸本)9781509063895

This paper investigates a class of electrical generators based on capacitors and diodes, with two capacitors being variable. Their main characteristics are a symmetrical structure and that they produce two outputs with the same polarity. The simplest version is analyzed in more detail, although in an approximate way, and generalizations of it are obtained, identified with a particular form of two-phase voltage multiplier. The generalized versions require less capacitance variation for operation, and are shown, by simulation, to have faster startup than structures with a single variable capacitor. The structures are tested experimentally with a 3D-printed pair of variable capacitors that tries to emulate a structure built with microelectromechanics techniques. © 2017 IEEE.

关键词： Energy harvesting

来源：评论

学校读者我要写书评

暂无评论

Electro-Osmosis and Heating in HVDC Grounding Systems 2

Electro-Osmosis and Heating in HVDC Grounding Systems

引用

2nd Geo-Chicago Conference: Geotechnics for Sustainable Energy, Geo-Chicago 2016

作者： Barbosa, Maria Claudia Lima, Antonio C. S. Rezende, Iara F. Lima Neto, Joaquim S. Program of Civil Engineering Federal Univ. of Rio de Janeiro COPPE/UFRJ Rio de JaneiroRJ Brazil Program of Electrical Engineering Federal Univ. of Rio de Janeiro COPPE/UFRJ Rio de JaneiroRJ Brazil

ISBN: (数字)9780784480137

ISBN: (纸本)9780784480182

This work aims to contribute to an accurate theoretical model for the risk assessment of soil drying in the vicinity of ground electrodes of an HVDC (high voltage direct current) system due to electro-osmosis flow and temperature rising. Electro-osmosis might occur due to the interaction of the electric field with surrounding media, i.e., ground due to the high current injection. There may be cases where this current injection might reach 10 kA, which may cause soil drying. This also leads to an increase in the soil temperature that can lead to the loss of the whole grounding system. One key aspect is the area under the influence of these two phenomena, namely, electro-osmosis flow and temperature rising. There were some simplified hypothesis adopted such as neglected the electro-osmosis consolidation and the groundwater flow. These were assumed to be negligible when compared with the effects associated to the electrical field. The combined models consider the overall process for each electrode installed below the water table. The results indicate the relative importance of both phenomena for a dryness risk assessment using hydraulic, electrical and electrokinetic parameters for a given soil with estimated thermal data. © ASCE.

关键词： Risk assessment

来源：评论

学校读者我要写书评

暂无评论

Automatic islanding control of radial distribution systems with Distributed Generation

Automatic islanding control of radial distribution systems w...

引用

Power Systems Computation Conference (PSCC)

作者： L. M. Paulis C. L. T. Borges Electrical Engineering Program at COPPE/UFRJ

ISBN: (纸本)9781467381512

The islanded operation of part of the distribution network fed by Distributed Generation (DG) can be valuable for the utility, the customers and DG owners. For the utility it can represent reduction of expenses due to blackouts, for the customers it can represent better supply service and DG owners can benefit from better availability of distribution network. Even with many challenges for safe operation, namely personnel safety and power quality, most of them can be surpassed by studying the network previously and supervising the behavior of the network in the case of a possible islanding. This paper presents an Automatic Islanding Control System (AICS) that encompasses automation and protection schemes and can be applied to radial feeders where MW-scale synchronous generators based DG are connected. The studies that must be performed in advance to be incorporated in the AICS algorithm, as well as an evaluation of the communication requirements, are described in detail. The presented system is being applied to an actual rural distribution network at Rio de Janeiro, Brazil, and the results show that the automatic islanding is viable for a large range of operating points.

关键词： Circuit faults Microgrids Load flow Automation Distributed power generation Islanding Control systems

来源：评论

学校读者我要写书评

暂无评论

Energy harvesting with 3D-printed electrostatic generators 7

Energy harvesting with 3D-printed electrostatic generators

引用

7th IEEE Latin American Symposium on Circuits and Systems, LASCAS 2016

ISBN: (纸本)9781467378352

An investigation is made about the practicability of building electrostatic generators suitable for energy harvesting applications using 3D-printed electromechanical structures. The generators are based on variable capacitors, using structures similar to Bennet's doubler, or more complex charge multipliers. Normal ABS plastic is used for insulating and mechanical structures, and conductive ABS is used for conducting parts as capacitor plates. As these generators work at very high impedance levels, the relatively high resistivity of the material used as conductor has acceptably small effect, and the technique can be used as an inexpensive alternative for experimenting with generator structures. © 2016 IEEE.

关键词： Electrostatics

来源：评论

学校读者我要写书评

暂无评论

Model predictive control of a modular multilevel converter combined with sorting methods

Model predictive control of a modular multilevel converter c...

引用

IEEE/IAS International Conference on Industry Applications (INDUSCON)

作者： Laís F. Crispino Luís G. B. Rolim COPPE/Electrical Engineering Program Federal University of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (纸本)9781509051281

The modular multilevel converter (MMC) has been a subject of increasing interest for power electronics researchers, especially in HVDC applications. However, this paper proposes to use a model predictive control (MPC) which considers a reduced number of states, as a control strategy to regulate the ac-side and circulating currents of a medium voltage distribution grid-connected MMC. Also, a sorting algorithm is used to implement the task of maintaining the submodules capacitor voltages regulated. These control strategies are applied to a five-level MMC, and its performance is analyzed based on simulation results conducted in the environment of circuit simulations PSIM.

关键词： Capacitors Voltage control Switches Mathematical model Current control Sorting Cost function

来源：评论

学校读者我要写书评

暂无评论

Energy harvesting using symmetrical electrostatic generators

Energy harvesting using symmetrical electrostatic generators

引用

International Symposium on Circuits and Systems

作者： Antonio Carlos M. de Queiroz COPPE/EP - Electrical Engineering Program Federal University of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (纸本)9781479953424

This paper describes possible regenerative electrostatic generators that can be obtained when two variable capacitors are used, in a symmetrical configuration. The studied structures require also two load capacitors and four switches or diodes, and produce two opposite output voltages. It is shown that some versions can produce a voltage multiplication factor per cycle that can reach 2. 618, greater than the maximum of 2 of the previously studied devices based on Bennet's doubler. As those, the proposed structures are also compatible with microelectromechanical systems, and may be suitable for energy harvesting applications.

关键词： low-power circuits energy harvesting electrostatic generator

来源：评论

学校读者我要写书评

暂无评论

Energy harvesting with 3D-printed electrostatic generators

Energy harvesting with 3D-printed electrostatic generators

引用

IEEE Latin American Symposium on Circuits and Systems (LASCAS)

作者： Antonio Carlos M. de Queiroz Luiz Carlos Macedo de Oliveira Filho COPPE/EP - Electrical Engineering Program Federal University of Rio de Janeiro Rio de Janeiro Brazil EP-Department of Electronic and Computer Engineering Federal University of Rio de Janeiro Rio de Janeiro Brazil

关键词： Generators Capacitors Capacitance Discharges (electric) Electrostatics Plastics Power generation

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共21页 << < 2 3 4 5 6 7 8 9 10 11 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

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：