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

473 篇 会议

馆藏范围

473 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

446 篇 理学
- 433 篇 物理学
- 40 篇 天文学
- 19 篇 数学
- 11 篇 化学
- 7 篇 生物学
- 2 篇 系统科学
- 1 篇 海洋科学
- 1 篇 统计学（可授理学、...
296 篇 工学
- 127 篇 电气工程
- 84 篇 仪器科学与技术
- 40 篇 信息与通信工程
- 37 篇 材料科学与工程（可...
- 29 篇 计算机科学与技术...
- 21 篇 机械工程
- 19 篇 光学工程
- 19 篇 航空宇航科学与技...
- 12 篇 软件工程
- 11 篇 测绘科学与技术
- 8 篇 电子科学与技术（可...
- 7 篇 控制科学与工程
- 6 篇 生物医学工程（可授...
- 4 篇 石油与天然气工程
- 3 篇 力学（可授工学、理...
- 3 篇 化学工程与技术
- 2 篇 交通运输工程
- 1 篇 动力工程及工程热...
54 篇 医学
- 45 篇 临床医学
- 9 篇 特种医学
12 篇 管理学
- 12 篇 管理科学与工程(可...
4 篇 教育学
- 4 篇 教育学

主题

38 篇 optical alignmen...
26 篇 alignment
26 篇 photonics
20 篇 systems modeling
16 篇 data modeling
15 篇 modeling
15 篇 mirrors
15 篇 silicon photonic...
14 篇 optical design
13 篇 image processing
13 篇 3d modeling
12 篇 tolerancing
12 篇 waveguides
12 篇 sensors
12 篇 metrology
11 篇 integrated model...
10 篇 simulation
10 篇 active optics
10 篇 adaptive optics
9 篇 telecommunicatio...

机构

8 篇 chinese acad sci...
6 篇 nasa goddard spa...
5 篇 caltech jet prop...
4 篇 beijing inst spa...
3 篇 caltech jet prop...
3 篇 chinese acad sci...
3 篇 univ arizona col...
3 篇 inaf osservatori...
3 篇 karlsruhe inst t...
3 篇 thirty meter tel...
3 篇 natl univ def te...
3 篇 lawrence livermo...
3 篇 nasa goddard spa...
3 篇 caltech pasadena...
3 篇 nasa glenn res c...
2 篇 ball aerosp & te...
2 篇 alson e hatheway...
2 篇 univ calif san d...
2 篇 amer univ dept p...
2 篇 beijing normal u...

作者

7 篇 leach richard r....
6 篇 awwal abdul a. s...
5 篇 wilhelmsen karl
4 篇 roberts randy
4 篇 nissly carl
4 篇 seo byoung-joon
4 篇 troy mitchell
3 篇 kim daewook
3 篇 lamontagne frede...
3 篇 herman eric
3 篇 yang xiaoxu
3 篇 youngworth richa...
3 篇 knight j. scott
3 篇 rushford michael...
3 篇 wang bo
3 篇 liu hui
3 篇 lowe-webb roger
3 篇 han junfeng
3 篇 bliss erlan s.
3 篇 liu hua

语言

466 篇 英文
7 篇 中文

检索条件"任意字段=Conference on Optical Modeling and System Alignment at SPIE Optics Photonics Conference"

共 473 条记录，以下是21-30 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：

Research on zero-sequence component method for cable fault location detection

Research on zero-sequence component method for cable fault l...

引用

2024 International conference on Physics, photonics, and optical Engineering, ICPPOE 2024

作者： Feng, Hongren Guangdong University of Science and Technology Dongguan523000 China

ISBN: (数字)9781510689121

ISBN: (纸本)9781510689114

Cable fault point detection is a critical aspect of power grid maintenance in electrical power systems. The accuracy, precision, and efficiency of cable fault point detection can directly impact the repair time of cable faults and are directly related to the stability of energy supply in the power grid and the efficiency of power system management. Therefore, this study focuses on the application value and effectiveness of the zero-sequence component method in cable fault point detection. By analyzing the structure of power cables and fault point detection methods and elucidating the mathematical model of zero-sequence component fault location, this study provides theoretical support. By introducing the content of cable fault point detection using the zero-sequence component method, the research is refined, and through case analysis, from a practical perspective, the practical application value of the zero-sequence component method in cable fault point detection is outlined. This further provides a reference for cable fault point detection and the stability, safety, and operational efficiency of power grid systems. © 2025 spie.

关键词： Power grids Transformers Dielectrics Mathematical modeling Resistance Analytical research Safety Polyethylene Thermal modeling Thermography

来源：评论

学校读者我要写书评

暂无评论

An innovative optical Antenna Design for Indoor Narrow Beam Fibre-to-The-Ray (NB-FTTRay) Communication system

An innovative Optical Antenna Design for Indoor Narrow Beam ...

引用

Asia Communications and photonics conference (ACP) / International conference on Information photonics and optical Communications (IPOC)

作者： Liu, Hui Zeng, Yan Wu, Xuming Cheng, Qiang Wang, Xiang Huawei Technol Co Ltd Optic Res Dept Wuhan Peoples R China China Acad Informat & Communicat Technol Broadband Network Res Dept Beijing Peoples R China

This paper demonstrates a NB-FTTRay system, an innovative optical antenna is implemented in the system. Camera-based image recognition and beam quality feedback mechanism are done to achieve alignment. The system supp... 详细信息

ISBN: (纸本)9781665481557

关键词： optical antenna NB-FTTRay beam alignment positioning marker

来源：评论

学校读者我要写书评

暂无评论

Point spread function modeling for coherent plane-wave compounding ultrasound imaging 15

Point spread function modeling for coherent plane-wave compo...

引用

15th International conference on Information optics and photonics, CIOP 2024

作者： Zhou, Bowen Liu, Songde Tian, Chao School of Engineering Science University of Science and Technology of China Anhui Hefei230026 China Institute of Artificial Intelligence Hefei Comprehensive National Science Center Anhui Hefei230088 China Anhui Province Key Laboratory of Biomedical Imaging and Intelligent Processing Institute of Artificial Intelligence Hefei Comprehensive National Science Center Hefei230088 China

ISBN: (数字)9781510686175

ISBN: (纸本)9781510686168

Spatial resolution is a critical measure of the imaging performance of ultrasound imaging systems and is determined by various system factors. So far, no comprehensive studies have been reported to elucidate the impact of system factors on spatial resolution, which is generally defined as the full width at half maximum (FWHM) of the point spread function (PSF). This work aims to model the PSF of ultrasound imaging systems based on a linear transducer array and a coherent plane-wave compounding (CPWC) method and study how pulse-echo sequences, transducer parameters, and beamforming algorithms impact PSF. The Verasonics simulator and UltraSound ToolBox are used in numerical simulations for ultrasound signal generation and image reconstruction, respectively. Experiments are conducted to verify simulation results. Numerical and experimental results show that the value of axial resolution is negatively correlated with the center frequency of the ultrasonic transducer;the value of lateral resolution is positively correlated with the number of transmitted plane waves of the CPWC method and the element width of the ultrasonic transducer and is negatively correlated with the maximum steering angle of the CPWC method and the aperture size and center frequency of the ultrasonic transducer. Different beamforming algorithms show varying effects on spatial resolution and image quality. This work is expected to help predict and interpret the quality of ultrasound images produced by practical ultrasound imaging systems and is beneficial for the design and development of ultrasonic transducers, pulse-echo sequences, and beamforming algorithms for enhanced spatial resolution. © 2024 spie.

关键词： optical transfer function

来源：评论

学校读者我要写书评

暂无评论

Autonomous closed-loop control for multi-segmented optic aligning and assembly 14

Autonomous closed-loop control for multi-segmented optic ali...

引用

conference on optical Manufacturing and Testing XIV Part of spie optics and photonics conference

作者： Choi, Heejoo Esparza, Marcos A. Luu, Ryan Milster, Tom Apai, Daniel Kim, Daewook Univ Arizona Wyant Coll Optic Sci 1630 E Univ Blvd Tucson AZ 85721 USA Univ Arizona Large Binocular Telescope Observ 933 N Cherry Ave Tucson AZ 85721 USA Univ Arizona Dept Astron 933 N Cherry Ave Tucson AZ 85721 USA Univ Arizona Lunar & Planetary Lab 1620 EUniv Blvd Tucson AZ 85721 USA Univ Southern Calif Dept Comp Sci 941 Bloom Walk Los Angeles CA 90089 USA

ISBN: (纸本)9781510654273;9781510654266

To meet the scientific requirements demanded for futuristic space exploration, the Nautilus space mission has adopted the newly developed multi-order diffractive optical elements (MODE) design. Primary optics with large aperture diameters, like those used commonly in observatories, are frequently the design most employed and demanded by astronomers. However, this is limited by the difficult challenges that comes with fabrication, alignment, and launch of said optics. The proposed primary optics fabrication breaks through these challenges by using molded segments as its primary optics. With the main advantage of requiring a relatively simplified assembly process and having a compressed volume, the compact form factor will allow for multiple telescope units to be sent together in a single launch. Additionally, the molding and segmented manufacturing creates a fine structure on the diffractive lens surface that is not easy to obtain via traditional surface removal fabrication processes for an identical optical surface piece. The feasibility of this assembly in respect to its accuracy and labor are the key factors of this approach. Therefore, we developed an in-Progress Metrology Control (iPMC) technique that was combined with a motorized mounting system to give us full autonomous closed-loop control during the UV curing of multiple segments. The iPMC monitors and guides the aligning of the adhesion process of the multi-segment MODE, while the metrology system measures the position of the multi-segments so that an individual actuator can automatically adjust the segment's orientation during the UV curing process. This is happening simultaneously as the influence matrix of each actuator receives feedback from the metrology system. The validity of the iPMC is then checked using the mock-up MODE lens assembly.

关键词： Metrology in-process metrology multi-segmented optics automatic alignment Close-loop alignment

来源：评论

学校读者我要写书评

暂无评论

Terahertz optical Setups Using Spatial Filtering Methods to Image Low-Absorbing Samples 3

Terahertz Optical Setups Using Spatial Filtering Methods to ...

引用

conference on Terahertz photonics III

作者： Nieradka, Adrianna Komorowski, Pawe L. Kaluza, Mateusz Surma, Mateusz Siemion, Agnieszka Warsaw Univ Technol Fac Phys Koszykowa 75 PL-00662 Warsaw Poland Mil Univ Technol Inst Optoelect Gen S Kaliskiego 2 PL-00908 Warsaw Poland

ISBN: (纸本)9781510673076;9781510673069

The fast development of terahertz (THz) technology holds significant importance in numerous applications where imaging systems are indispensable. Moreover, advanced imaging systems increasingly demand the capability to image transparent objects. This is particularly challenging due to the relatively low efficiency of THz sources, leading to low power in THz systems. Additionally, parasitic reflections in mostly very coherent THz optical systems result in the occurrence of high speckle noise. One of the solutions for the enhancement of the imaging contrast of transparent objects is the application of spatial filtering (SF) methods in the system, which we implement here via the following methods: positive phase contrast (PPC), negative phase contrast (NPC), and dark field (DF). In this study, the authors report the implementation of all three methods in the 4f THz system for relatively long-distance imaging of 1200 mm. The system was tested with the numerical simulation. The detailed analysis of the results allowed for the selection of the recommended size of the spatial phase filter for the implementation of the SF methods in the experimental optical setup. The filter and the object were manufactured using fused deposition modeling (FDM) 3D printing technology. Subsequently, the 4f system facilitating the SF methods was built and examined experimentally. The analysis of the experimental results indicates the enhancement of the signal-to-noise ratio (SNR) by almost 14 times with the use of the PPC method compared to the system without the inserted filter. Thus, the improvement of the image contrast by the implementation of SF method is unquestionable.

关键词： terahertz radiation imaging setups terahertz optical elements spatial filtering imaging of low-absorbing objects

来源：评论

学校读者我要写书评

暂无评论

Progress Towards alignment of Multi-Order Diffractive Engineered (MODE) Lens Segments using the Kinematically-Engaged Yoke system (KEYS) for optical Performance Testing 14

Progress Towards Alignment of Multi-Order Diffractive Engine...

引用

conference on optical Manufacturing and Testing XIV Part of spie optics and photonics conference

作者： Esparza, Marcos A. Luu, Ryan Choi, Heejoo Milster, Tom D. Apai, Daniel Kim, Daewook James C Wyant Coll Optic Sci 1630 E Univ Blvd Tucson AZ 85721 USA Univ Southern Calif Los Angeles CA 90007 USA Large Binocular Telescope Observ 933 N Cherry Ave Tucson AZ 85721 USA Univ Arizona Dept Astron & Steward Observ 933 North Cherry Ave Tucson AZ 85721 USA

ISBN: (纸本)9781510654273;9781510654266

The continued development of multi-order diffractive engineered (MODE) lens technology that utilizes both multi-order diffractive surfaces and a diffractive Fresnel lens surface" allows for the conception and development of future applications of the technology such as lightweight large aperture telescope primary lenses. Manufacturing methods being developed for this technology use glass compression molding to create its unique optical surface features. However, to enable the design and development of larger apertures using the MODE lens, it is necessary to allow segmentation due to the size constraints of current glass molding technology. Previous proceedings presented the effectiveness of the Kinematically-Engaged Yoke system (KEYS) to align the segments of a 0.24-m, PMMA, monochromatic, MODE-like lens (having no diffractive Fresnel lens features). The KEYS alignment system consists of ball bearings with which the step-like features of MODE lens segments kinematically engage with. In previous iterations of the KEYS, these ball bearings were mounted on ultra-fine screws that are adjusted radially with flexures that occupy space in the transverse plane (perpendicular to the MODE lens's optical axis). We present a new iteration of KEYS in which these radially adjusting flexures have been modified to be located in planes that contain the MODE len's optical axis. The alignment and optical performance of the MODE lens are evaluated using deflectometry in order to determine its current resolution of lens segment adjustment. Improvement of the KEYS will allow optical performance testing of the aligned lens. This version of KEYS will be used to assemble a 0.24-m, compression molded, glass, segmented MODE lens.

关键词： alignment metrology multi-segmented optics MODE lens optomechanics kinematic constraint flexures

来源：评论

学校读者我要写书评

暂无评论

Review of overlay error and controlling methods in alignment system for advanced lithography 13

Review of overlay error and controlling methods in alignment...

引用

13th International conference on Information optics and photonics, CIOP 2022

作者： Jin, Hao Qi, Yuejing Lithography Technology Center Chinese Academy of Sciences Beijing100029 China School of Integrated Circuits University of Chinese Academy of Sciences Beijing100049 China

ISBN: (纸本)9781510660632

Acting as one of the three critical indicators to evaluate the performance of lithography scanners, overlay has been a vital factor which seriously affects the electric property, life span and reliability of integrated circuits (IC). With continuous developments of technology nodes and applications of resolution enhancement technologies (RET), current resolution of the scanners has shrunk to 7 nm and beyond, proposing more stringent requirements for measuring, monitoring and correcting the overlay error. To ensure that the overlay budget fully met by the scanner, advanced optical technologies and holistic alignment approaches have been gradually applied to the alignment system of the scanner, revealing that an integrated methodology in which multiple technologies are adopted proved to be valid and effective in reducing the overlay error in present technology nodes. In this article, the exact concept of overlay error is provided, and on this basis different methods to describe the overlay error are comprehensively analyzed from the perspectives of classifications, sources, quality control and correcting models. Then the systematic relationship between alignment and overlay is illustrated. Recent improvements in the alignment system are also the key points here to systematically reduce the overlay error, including the optimization of the alignment optical path, mark types and design procedures, as well as the application of optimal color weighting (OCW), wafer alignment model mapping (WAMM) and sampling scheme optimization (SSO) algorithms. Based on the combined application and iteration of these technologies, it is believed that the on-product overlay (OPO) can be further compressed to support the continuous tightening of the overlay budget in the industry of IC. © 2022 spie.

关键词： Integrated circuits

来源：评论

学校读者我要写书评

暂无评论

Analysis of the effect of profile selection on the simulation accuracy of fast simulation of satellite infrared channel transmittance 14

Analysis of the effect of profile selection on the simulatio...

引用

14th International conference on Information optics and photonics, CIOP 2023

作者： Mu, Qingyu Ma, Gang Su, Jing Wang, Meihua Zhang, Peng College of Atmospheric Sciences Lanzhou University Gansu Lanzhou730000 China Center for Numerical Earth System Prediction China Meteorological Administration Beijing100081 China College of Meteorology and Oceanography National University of Defense Technology Hunan Changsha410000 China National Satellite Meteorological Center Beijing100081 China Xu Jianmin Weather Satellite Innovation Center Beijing100081 China

ISBN: (纸本)9781510671744

The selection of atmospheric sample profiles is one of the key factors affecting the accuracy of the fast simulation of satellite channels, but the mechanism of the influence has not been conclusively established. In this paper, the mechanism of atmospheric sample profile selection and its contribution in the forward modeling are discussed through the analysis of the role of transmittance predictors in RTTOV model. The CO2 absorption channel at 15 μm in the infrared band of FY-3C IRAS (InfraRed Atmospheric Sounder) is used as the study object, and the IRAS laminar channel transmittance factor is established based on the TIGR43 profile database. The comparison tests between the profile temperature anomaly and simulation accuracy in the cold and warm scenarios show that the root mean square error (RMSE) of the simulation for the IRAS temperature detection channel is 0.2 K when all the profiles are involved in the regression calculation, compared with the simulation results of LBL. Within the detection height range of the selected CO2 detection channels, there is a strong linear correlation between the profile temperature anomaly and the simulation accuracy in the warm scenario due to the higher order residual term in the Taylor expansion, and more significant accuracy improvement can be obtained if the profile with larger temperature anomaly is removed from the forward modeling. © 2023 spie.

关键词： Carbon dioxide

来源：评论

学校读者我要写书评

暂无评论

On-chip integration of optical microbottles for biosensing 15

On-chip integration of optical microbottles for biosensing

引用

conference on Frontiers in Biological Detection - From Nanosensors to systems XV

作者： Zamora, Vanessa Preussler, Paul Herter, Jonas Marx, Sebastian Schroeder, Henning Schneider-Ramelow, Martin Fraunhofer Inst Reliabil & Microintegrat Gustav Meyer Allee 25 D-13355 Berlin Germany Tech Univ Berlin Gustav Meyer Allee 25 D-13355 Berlin Germany

ISBN: (纸本)9781510658998;9781510659001

In the last decades, coupling strategies of optical microresonators have been intensively explored to develop highly sensitive and label-free miniaturized biosensors. This work presents an innovative semi-automatic assembly approach for glass microbottles on a photonic integrated circuit (PIC) with single-mode waveguides. Microbottles are extraordinary whispering- gallery-mode (WGM) structures with additional axial confinement of the light along the bottle shape. A high dense spectrum of resonances varying along the bottle curvature is typically observed. To excite these resonances, the evanescent field of waveguides is used, as it provides direct evanescent interaction, integration of multiple structures and mass production. Initial coupling tests in air yielded a Q factor of 10(4) at 1550 nm by employing an active alignment setup and a customized gripping tool. Lateral coupling tolerances of Delta x = +/- 50 mu m and Delta y = +/- 2 mu m for a bottle diameter of 180 mu m were also found. An existing assembly machine including a visual system, alignment system, high precision glue dispenser and UV light was used for the identification, placement and fixation of microbottles. A highest Q factor of 105 was determined after the attachment of a microbottle. Similar results were obtained with bio-chemical modified samples. A laser cutting method was also applied for reducing the fiber length of the microbottle. In this way the hybrid PIC can be compatible with microfluidics. The dedicated assembly process is a promising tool to bring optical resonators into practical use for label-free biochemical sensing but also for other applications such as quantum sensing and communication.

关键词： Microbottles high precision assembly optical coupling glue dispensing waveguides laser cutting packaging whispering gallery modes photonic integrated circuits biosensors

来源：评论

学校读者我要写书评

暂无评论

An Initial alignment Algorithm of Strapdown Inertial Navigation system Assisted by Doppler Radar Based on Adaptive Filtering 4

An Initial Alignment Algorithm of Strapdown Inertial Navigat...

引用

4th International conference on Artificial Intelligence and Electromechanical Automation, AIEA 2023

作者： Liu, Feng Yang, Bo Xi’an Research Institute of High Technology Xi’an710000 China

ISBN: (纸本)9781510666412

In order to realize the autonomous initial alignment of the vehicle-borne strapdown inertial navigation system (SINS) on the moving base, an adaptive filter based initial alignment algorithm for Doppler radar-assisted SINS is proposed. The error analysis and modeling about Doppler radar and SINS are carried out, and the alignment state variables are selected according to the established error model. The measurement equation is established by using output of Doppler radar and SINS. The initial alignment algorithm is designed based on adaptive filtering. The simulation results show that the azimuth angle alignment accuracy of the method is better than 3', and the horizontal angle alignment accuracy is better than 1' in 220 s. The initial alignment can be completed quickly and accurately in the case of large Doppler radar velocity variance. © 2023 spie.

关键词： Inertial navigation systems

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48页 << < 1 2 3 4 5 6 7 8 9 10 > >>

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：