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

1,132 篇 会议
56 篇 期刊文献
6 册 图书
1 篇 学位论文

馆藏范围

1,195 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

718 篇 理学
- 663 篇 物理学
- 52 篇 化学
- 48 篇 数学
- 25 篇 天文学
- 18 篇 地球物理学
- 13 篇 系统科学
637 篇 工学
- 211 篇 电气工程
- 177 篇 电子科学与技术（可...
- 137 篇 材料科学与工程（可...
- 132 篇 光学工程
- 132 篇 仪器科学与技术
- 120 篇 计算机科学与技术...
- 80 篇 软件工程
- 77 篇 机械工程
- 67 篇 信息与通信工程
- 65 篇 化学工程与技术
- 55 篇 控制科学与工程
- 40 篇 航空宇航科学与技...
- 36 篇 冶金工程
- 36 篇 动力工程及工程热...
- 26 篇 土木工程
- 25 篇 生物医学工程（可授...
- 24 篇 力学（可授工学、理...
- 19 篇 石油与天然气工程
- 17 篇 建筑学
- 12 篇 生物工程
97 篇 医学
- 89 篇 临床医学
60 篇 管理学
- 57 篇 管理科学与工程(可...
- 20 篇 工商管理
11 篇 经济学
- 11 篇 应用经济学
7 篇 教育学
6 篇 法学
3 篇 农学
1 篇 军事学

主题

135 篇 optical design
54 篇 lens design
27 篇 voltage
27 篇 mirrors
24 篇 silicon
23 篇 photovoltaic cel...
21 篇 sensors
19 篇 optical receiver...
19 篇 telescopes
19 篇 optical sensors
16 篇 cmos integrated ...
16 篇 distortion
16 篇 bandwidth
15 篇 optical engineer...
15 篇 optimization
15 篇 light emitting d...
14 篇 optical device f...
14 篇 optical systems
14 篇 lenses
13 篇 current measurem...

机构

6 篇 nasa goddard spa...
4 篇 department of ph...
4 篇 dept. of astrono...
4 篇 dept. of physics...
4 篇 dept. of physics...
4 篇 iii. physikalisc...
4 篇 dept. of physics...
4 篇 erlangen centre ...
4 篇 département de p...
4 篇 school of physic...
4 篇 sandia natl labs...
4 篇 school of optoel...
4 篇 dept. of astrono...
4 篇 dept. of physics...
4 篇 department of ph...
4 篇 institut für phy...
4 篇 institut für ker...
4 篇 dept. of physics...
4 篇 department of ph...
4 篇 dept. of physics...

作者

19 篇 thibault simon
6 篇 thibault s
6 篇 parent jocelyn
5 篇 kucukcelebi doru...
5 篇 thibault s.
5 篇 hill c.
4 篇 samajdar dip pra...
4 篇 haungs a.
4 篇 fürst p.
4 篇 fan k.l.
4 篇 bourbeau e.
4 篇 fritz a.
4 篇 halve l.
4 篇 de clercq c.
4 篇 böttcher j.
4 篇 ha minh m.
4 篇 günther c.
4 篇 glauch t.
4 篇 bociort florian
4 篇 delaunay j.j.

语言

1,135 篇 英文
46 篇 其他
12 篇 中文
2 篇 俄文

检索条件"任意字段=Conference on Current Developments in Optical Design and Engineering V"

共 1195 条记录，以下是581-590 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：

design of compact fisheye lens with slope-constrained Q-type aspheres

Design of compact fisheye lens with slope-constrained Q-type...

引用

conference on current developments in Lens design and optical engineering XIv

作者： Xu, Chen Cheng, Dewen Song, Weitao Wang, Yongtian Wang, Qingfeng Beijing Inst Technol Sch Optoelect Beijing 100081 Peoples R China

ISBN: (纸本)9780819496911

Two types of fisheye lenses for automobile navigation are designed with slope-constrained Q-type aspheres. Special requirements have been considered in the design process, and Q-type surfaces are introduced by converted from other kinds of aspheric description with only coefficients of low-order terms retained. A possible problem of imaging the first surface onto the sensor has also been analyzed. As a result, as for the six-element fisheye lens, MTF is greater than 0.3 at 45lp/mm, f-theta distortion is less than 0.03 when the focal length is calibrated, field of view is 230 degrees and full field relative illumination is greater than 0.4. For the four-element fisheye lens, MTF is greater than 0.4 at 45lp/mm, f-theta distortion is less than 0.16, field of view is 190 degrees and full field relative illumination is greater than 0.6. The design results show that the Q-type surfaces employed in fisheye lenses can make the system more compact, lightweighted and easier to manufacture.

关键词： fisheye lens Q-type asphere distortion evaluation tolerance analysis image quality analysis

来源：评论

学校读者我要写书评

暂无评论

Microplasma assisted synthesis of gold nanoparticles mediated by ultrasound

Microplasma assisted synthesis of gold nanoparticles mediate...

引用

IEEE International conference on Plasma Science (ICOPS)

作者： Shasha Zuo Ruixue Wang Jue Zhang Jing Fang Weidong Zhu College of Engineering Peking University Beijing China

Gold nanoparticles (AuNPs) exhibit unique optical, electronic and catalytic properties that allow their potential application in many areas. The performance of the nanoparticles depends closely on their size distribution. One of the recent developments of the synthesis of AuNPs involves the utilization of atmospheric pressure microplasmas. This approach quickly attracted much attention due to its low cost and high throughput. Yet, there is still a certain degree of difficulty to control the nanoparticles size effectively. In this study, we attempted to mediate the size distribution of AuNPs by coupling ultrasound into the microplasma-assisted nanoparticle synthesis system. The system was modeled after Mohan Sankaran and was comprised of a traditional electrochemical cell with a platinum foil as the anode, and the physical cathode being replaced by an atmospheric pressure microplasma. The microplasma was approximately 1 mm in length and was produced between a copper capillary tube (7 cm long with inner diameter of 0.355 mm) and the surface of the electrolyte precursor (containing l.214 mM HAuCI 4 and 34 mM sodium citrate). Research grade argon (Ar) gas (99.99%) was used to pressurize the capillary tube at a constant flow rate of 50 SCCM. During the synthesis of AuNPs, the microplasma discharge was sustained at a voltage around 600 v with an operating current of -30 rnA. The ultrasonic reactor was operated at 40 kHz. The nanoparticle synthesis time was set to as 3 min, 5 min, 10 min respectively. Uv -vis absorption spectroscopy results indicated that the average size of AuNPs prepared under ultrasound irradiation is greater than that of without ultrasound. With ultrasound assistance, the average size of AuNPs increases over reaction time. The ultrasound assisted process can provide an effective strategy to adjust the size of microplasma induced AuNPs.

关键词： Ultrasonic imaging

来源：评论

学校读者我要写书评

暂无评论

current developments in Lens design and optical engineering XIv

Current Developments in Lens Design and Optical Engineering ...

引用

conference on current developments in Lens design and optical engineering

ISBN: (纸本)9780819496911

The proceedings contain 37 papers. The topics discussed include: radiance limits of ceramic phosphors under high excitation fluxes;application of heterogeneous microlenses for solid state lighting;design of compact fisheye lens with slope-constrained Q-type aspheres;analytic formulas of the aspheric terms for convex-plano and plano-convex aspheric lenses;multi-core and GPU accelerated simulation of a radial star target imaged with equivalent T-number circular and Gaussian pupils;man versus machine: a lens design challenge;a 3D photographic capsule endoscope system with full field of view;double micro-prism array design for reducing dispersion on prism-based stereo camera system;optical architecture of the new generation infrared atmospheric sounder interferometer (IASI-NG);a three-channel miniaturized optical system for multi-resolution imaging;backward reflection analysis of transmitting channel of active laser ranging;and further results in measuring water ice buildup on optical components in cryogenic vacuum chambers.

关键词：

来源：评论

学校读者我要写书评

暂无评论

An Integrated optical Sensor Receiver with the sensitivity of 0.7 μA Fabricated with Standard CMOS Process

An Integrated Optical Sensor Receiver with the sensitivity o...

引用

International conference on Mechatronics and Materials engineering (ICMME 2012)

作者： Liu Luncai Huang Xiaozong Huang Wengang SISC Analog IC Design Ctr Chongqing 400060 Peoples R China

ISBN: (纸本)9783037855591

A fully integrated CMOS receiver front-end with digital output for optical signal processing system is presented. This circuit is composed of trans-impedance amplifier (TIA) for weak optical current detection, post-amplifier for both a linear and limiting amplification, control circuits and the digital output interface. Measured with photodiode which is driven by pulse voltage source, a sensitivity of 0.7 mu A was achieved. The current model methodology is employed to optimize the noise performance. The front-end consumes the current of 1.5mA with the power supply of 3.3v. The design was done in a low-cost standard CMOS process with 0.6 mu m featured size, taking area of 600 mu mx150 mu m excluding the bonding pads.

关键词： optical Sensor Receiver TIA current Model Methodology

来源：评论

学校读者我要写书评

暂无评论

A framework of cloud supported collaborative design in glass lens moulds based on aspheric measurement

A framework of cloud supported collaborative design in glass...

引用

conference on current developments in Lens design and optical engineering XIv

作者： Zhu, Yongjian Wang, Yu Na, Jingxin Zhi, Yanan Fan, Yufeng Jilin Univ State Key Lab Automot Simulat & Control Changchun 130025 Peoples R China Zhejiang Univ Sci & Technol Hangzhou 310023 Zhejiang Peoples R China Chinese Acad Sci Shanghai Inst Opt & Fine Mech Shanghai 201800 Peoples R China

ISBN: (纸本)9780819496911

Aspheric mould design includes the top-down design and reversal design. In this paper, a new framework of reversal design is proposed combining with cloud supported collaborative design (CSCD) based on aspheric measurement. The framework is a kind of collaborative platform, which is composed of eight modules, including the computerized aspheric precision measurement module (CAPM), computer-aided optical design of aspheric lens system (CAOD), computer-aided design of lens mould (CADLM), FEM(finite element method) simulation of lens molding module (FEMLM), computer-aided manufacture of lens & moulds (CAMLM), measurement data analysis module (MDAM), optical product lifecycle management module (OPLM) and cloud computing network module (CCNM). In this framework, the remote clients send an improved requirement or fabrication demand about optical lens system through CCNM, which transfers this signal to OPLM. In OPLM, one main server is in charge of the task distribution and collaborative work of other six modules. The first measurement data of aspheric lens are produced by clients or our proposed platform CAPM, then are sent to CAOD for optimization and the electronic drawings of lens moulds are generated in CADLM module. According the design drawings, the FEMLM could give the lens-molding simulation parameters through FEM software. The simulation data are used for the second design of moulds in CADLM module. In this case, the moulds could be fabricated in CAMLM by ultra-precision machine, and the aspheric lens could be also produced by lens-molding machine in CAMLM. At last, the final shape of aspheric lens could be measured in CAPM and the data analysis could be conducted in MDAM module. Through the proposed framework, all the work described above could be performed coordinately. And the optimum design data of lens mould could be realized and saved, then shared by all the work team.

关键词： aspheric measurement lens molding cloud supported collaborative design

来源：评论

学校读者我要写书评

暂无评论

design and operation of a fast-risetime, 500 Hz, 24 kv, optically-isolated pulse trigger generator

Design and operation of a fast-risetime, 500 Hz, 24 kV, opti...

引用

IEEE Symposium Power Modulator

作者： David H. Barnett Jonathan Parson Curtis. Lynn Patrick Kelly Mark Taylor James Dickens Andreas Neuber John Mankowski Steve Calico Michael Scott Dept. of Electrical and Computer Engineering Texas Tech University Lubbock TX USA Lockheed Martin Missiles and Fire Control Grand Prairie TX USA

This paper presents the design and performance characteristics of an optically isolated, trigger generator for spark gap applications that is capable of operating at over 500 Hz rep rate. The pulsed trigger generator is designed to achieve fast risetimes on the order of 1kv/ns to cause breakdown between the trigatron trigger pin and the opposite electrode. The pulsed trigger generator is designed to trigger a 10-stage, 500 kv, 42 J Marx generator. The system is capable of delivering a 4-25 kv pulse with a 10/90 risetime of 20 ns. A board was fabricated to control a capacitor charger and high voltage thyristor via fiber optic inputs. The capacitor charger, a 60 W constant current dc-dc power supply with variable voltage control, is capable of charging 1 nF in less than 0.3 ms. The system is battery-powered using a 33 v lithium polymer battery pack for isolated operation in noisy environments. For burst mode operation, a larger 250 nF buffer capacitor, which is initially charged, is connected through a 100 kΩ resistor to the trigger capacitor, which is varied between 1 and 40 nF. The value of the trigger capacitor is adjusted to provide optimum performance for a given transformer and magnetic switch. System modeling results along with experimental data are discussed including the reliability and performance of the overall system including jitter at 500 Hz operation.

关键词： Capacitors Thyristors optical switches Magnetic cores Pulse transformers Saturation magnetization

来源：评论

学校读者我要写书评

暂无评论

current BCI Technologies in Brain engineering

Current BCI Technologies in Brain Engineering

引用

IEEE International conference on Robotics, Biomimetics, and Intelligent Computational Systems (ROBIONETICS)

作者： Hong, Keum-Shik Santosa, Hendrik Pusan Natl Univ Dept Cognomechatron Engn Pusan 609735 South Korea

ISBN: (纸本)9781479912063

various neuroimaging modalities have appeared to acquire brain signals for developing a brain-computer interface (BCI). In this article, we review studies on different modalities including both invasive and non-invasive techniques for the implementation of BCIs, for brain signals detection, decoding, feature extraction, and classification. We discuss their advantages, disadvantages, and implementation issues to design of BCIs. Finally, we focus on fundamental principles, recent developments, and applications by using optical imaging as a promising modality for BCI applications.

关键词： neuroimaging brain-computer interface noninvasive neurorehabilitaion

来源：评论

学校读者我要写书评

暂无评论

Research on the electro-exploding mechanism of Semiconductor Bridge

Research on the electro-exploding mechanism of Semiconductor...

引用

2nd International conference on Advanced Materials and engineering Materials (ICAMEM 2012)

作者： Li, Yong Zhou, Bin Qin, Zhi-chun Jia, Xin Wen, Lei-ming Nanjing Univ Sci & Technol Sch Chem Engn Nanjing 210094 Jiangsu Peoples R China

ISBN: (纸本)9783037856666

In an effort to elucidate the electro-exploding mechanism of semiconductor bridge (SCB), constant current was forced to flow through polysilicon bridge with a resistance about 1 0, while the response of voltage and current was measured to obtain its electro-exploding performances. The rise platform and subsequent peak in the current-time curve were observed. It is inferred from the optical signal that the first peak in the current curve results from the plasma generation of the bridge material. The entire electro-exploding process includes Joule heating, melting, vaporizing and plasma generating stage. The laws between performance parameters and the size or shape of bridge area were analyzed;it demonstrated that v-type angles on both ends of bridge were helpful for function time reducing, which provided an experimental basis for SCB design.

关键词： Semiconductor Bridge constant current electro-exploding mechanism performance parameters

来源：评论

学校读者我要写书评

暂无评论

Recent developments with a prototype fan-beam optical CT scanner

Recent developments with a prototype fan-beam optical CT sca...

引用

7th International conference on 3D Radiation Dosimetry (IC3DDose)

作者： Campbell, W. G. Jirasek, A. Wells, D. Univ Victoria Dept Phys & Astron Victoria BC Canada BC Canc Agcy Vancouverisland Ctr Victoria BC Canada

The latest design of a prototype fan-beam optical computed tomography scanner is presented. A new beam creation system consists of a 635 nm laser diode module with variable, DC voltage-controlled beam intensity. A change in scanner alignment allows for the elimination of ring artefacts caused by data corruption that is spaced symmetrically across the detector array. These artefacts, as well as a pair of streaking artefacts caused by flask seams, are removed in sinogram space. A flask registration technique has been developed that allows for accurate, reproducible dosimeter placement. Protocol investigations with gel dosimeters have indicated the importance of: i) proper cooling techniques during gel manufacture, and ii) scanning the dosimeter while it is at room temperature. Latest reconstructions of a normoxic polymer gel dosimeter are presented as an indicator of current system performance.

关键词： Dosimeters

来源：评论

学校读者我要写书评

暂无评论

Computer vision Analysis of 3D scanned Circuit Boards for functional Testing and Redesign

Computer Vision Analysis of 3D scanned Circuit Boards for fu...

引用

2nd International Through-Life engineering Services conference (TESConf)

作者： Grosser, Hendrik Beckmann-Dobrev, Boris Politz, Friedrich Stark, Rainer Fraunhofer IPK Berlin Div Virtual Prod Creat Berlin Germany TU Berlin Chair Ind Informat Technol Berlin Germany

Testing, repair and overhaul of long-living printed circuit boards (PCBs) is a laborious task if no schematics or layout plans are available. Existing Reverse engineering (RE) methods are time-consuming, error-prone, and destructive and require reference samples which makes them not feasible for non-OEM users of electronic devices. The Fraunhofer Institute for Production Systems and design Technology (IPK) in Berlin and the Technical University Berlin have defined a new process for automated and non-destructive schematic and layout reconstruction based on electrical and optical measuring techniques. current results and innovative approaches using computer vision analysis for recognition of PCB structure aiming to build error-free net lists through a net list merging algorithm are depicted in this paper. (C) 2013 The Authors. Published by Elsevier B.v.

关键词： computer vision reverse engineering PCB netlist schematics MRO repair redesign

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120页 << < 55 56 57 58 59 60 61 62 63 64 > >>

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：