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Laser 728 nm Spectroscopy of Electrodeless Discharge Rb Lamp

Chinese Physics Letters 2014年第12期31卷 23-26页

作者：刘忠征薛潇博牛富增张理国凌俐陈景标 State Key Laboratory of Advanced Optical Communication System and Network Institute of Quantum Electronics School of Electronics Engineering ~ Computer Science Peking University Beijing 100871 Institute of Information and Electronics Zhejiang University City College Hangzhou 310015

The electrodeless discharge rubidium vapor lamp plays a key role in a number of applications, such as atomic clock, atomic magnetometer, atomic optical filter and laser frequency stabilization. The electrodeless discharge Rb vapor lamp has rich spectra, including 420nm, 421nm, 565nm, 572nm, 607nm, 616nm, 728 nm, 776 nm, 780 nm, 795 nm, 1324 nm, 1344 nm, 1366 nm, 1475 nm, 1529 nm spectroscopy, etc. The 780nm transition wavelength between 5P3/2 and 5S1/2 of Rb atoms is usually used in fields of the Rb atomic clock and the Rb atomic *** the 421.7 nm laser pumping atoms from 5S1/2 to 6P1/2, 1366.9 nm transition from 6S1/2 to 5P3/2 can be used as a clock transition of Rb four levels for an atomic active optical clock. An active optical clock is a new conception of the atomic clock and has the potential to improve the stabil- ity of the best atomic clocks by about two orders of magnitude. Another application of the elec- trodeless discharge Rb vapor lamp is the Rb Faraday anomalous-dispersion optical filter （FADOF）（e.g., 776 nm] and 1529 nm spectroscopy）, in which the electrodeless discharge Rb vapor lamp is more feasible than the one using a laser pumped Rb vapor cell in some cases, since many excited states are populated enough for aimed FADOF transition. Although the rich spectra of Rb have many applications, so far no detailed investigations or applications have been achieved in 728.0nm transition. To the best of our knowledge, the Rb 728.0 nm spectral data are currently only from the fluorescence by Beacham arc spectrum of rubidium early in 1959.

关键词： LASER spectroscopy INDUCTION lamps RUBIDIUM ABSORPTION spectra LASER cooling PHASE transformations (Physics)

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Identification of mild cognitive impairment using extreme learning machines model 11th

Identification of mild cognitive impairment using extreme le...

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11th International Conference on Intelligent Computing, ICIC 2015

作者： Zhang, Wen Shen, Hao Ji, Zhiwei Meng, Guanmin Wang, Bing School of Electronics and Information Engineering Tongji University Shanghai201804 China The Advanced Research Institute of Intelligent Sensing Network Tongji University Shanghai201804 China The Key Laboratory of Embedded System and Service Computing Tongji University Shanghai201804 China Department of Clinical Laboratory Tongde Hospital of Zhejiang Province 234th Gucui Road Hangzhou310012 China

ISBN: (纸本)9783319221854

Alzheimer’s disease (AD) is very common disorder among the older people. Predicting mild cognitive impairment (MCI), an intermediate stage between normal cognition and dementia, in individuals with some symptoms of cognitive decline may have great influence on treatment choice and disease progression. In this work, a novel prediction model based on extreme learning machines algorithm was proposed to identify mild cognitive impairment using the information of some biomarkers, i.e., Position Emission Tomography (PET), Magnetic Resonance Imaging (MRI), and the cerebrospinal fluid (CSF). Firstly, each subject will be represented by three biomarkers using a vector with 201 dimensions after some essential pre-processing. Then, a prediction model based on extreme learning machine algorithm was trained to catch the difference between the patients and healthy persons. Finally, the model had been employed to identify identifying MCI participants from the normal people. Based on a dataset, including 99 MCI patients and 52 health controls, our proposed method achieved 70.86 % prediction accuracy with 67.68 % sensitivity at the precision of 76.92 %. Extensive experiments are performed to compare our method with state-of-the-art techniques, i.e., support vector machine (SVM) and SVM with fusion kernels. Experimental results demonstrate that proposed extreme learning machine is a powerful tool for predicting MCI with excellent performance and less time. © Springer International Publishing Switzerland 2015.

关键词： Support vector machines

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Assessment of storage reliability for accelerometer based on pseudo-stable data

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2012 International Conference on Electrical and electronics engineering, ICEE 2012

作者： Jia, Dongyao Ai, Yanke Advanced Control System Laboratory School of Electronics and Information Engineering Beijing Jiaotong University Beijing 100044 China

ISBN: (纸本)9781461449805

Because of the slow parameter drifting and the long testing time in storage environment, the life test has failed to meet the actual needs in normal environment, so it is difficult to assess the reliability of the product accurately. The power function degradation model and the Arrhenius acceleration model are introduced in the paper based on the degradation mechanism of accelerometer parameters, and a generalized analysis method of high reliable and long life is also proposed under the pseudo-stable condition obeying the log-normal distribution and the Weibull distribution. The experiments proved that the proposed method can overcome the disadvantage in reliability assessment for traditional accelerated data, eliminate the defect of the accelerometer reliability interval evaluation, and improve the accuracy and stability of the reliability index, so it has higher cost-effectiveness ratio. © 2014 Springer Science+Business Media New York.

关键词： Accelerometers

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A study of an alignment-less lithography method as an educational resource

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AIP Conference Proceedings 2016年第1期1733卷

作者： Kazuho Kai Koki Shiota Shiro Nagaoka Mohamad Rusop Bin Haji Mahmood Akira Kawai Advanced course of Electronics Information and Communication Engineering National Institute of Technology Kagawa College 551 Koda Mitoyo Kagawa Japan Department of Electronic Systems Engineering National Institute of Technology Kagawa College 551 Koda Mitoyo Kagawa Japan Institute of Science Centre for Nano-Science and Nano-Technology University Technology MARA 40450 Shah Alam Selangor Manaysia Department of Electrical Engineering Electronic Devices and Optical Electronics group Nagaoka University of Technology 1603-1 Kamitomioka Nagaoka Niigata Japan

A simplification of the lithography process was studied. The simplification method of photolithography, named “alignment-less lithography” was proposed by omitting the photomask alignment process in photolithography process using mechanically aligned photomasks and substrate by using a simple jig on which countersinks were formed. Photomasks made of glass and the photomasks made of transparent plastic sheets were prepared for the process. As the result, approximately 5µm in the case of the glass mask, and 20µm in the case of the OHP mask were obtained with repetitive accuracies, respectively. It was confirmed that the alignment-less lithography method was successful. The possibility of the application to an educational program, such as a heuristic for solving problems was suggested using the method with the OHP mask. The nMOS FET fabrication process was successfully demonstrated using this method. The feasibility of this process was confirmed. It is expected that a totally simplified device fabrication process can be achievable when combined with other simplifications, such ass the simplified impurity diffusion processes using PSG and BSG thin film as diffusion source prepared by the Sol-Gel material under normal air environment.

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The 5th International Conference on Biomedical engineering and Biotechnology (ICBEB 2016) Abstracts

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BMC MEDICAL IMAGING 2016年第SUPPL 1期16卷 65-65页

作者： [Anonymous] Department of MRI Shandong Medical Imaging Research Institute Affiliated to Shandong University Jinan Shandong 250021 People’s Republic of China Department of Interventional Radiology Shandong Provincial Hospital Affiliated to Shandong University Jinan Shandong 250021 People’s Republic of China College of Information Science and Technology Engr. Research Center of Digitized Textile & Fashion Tech. for Ministry of Education Donghua University Shanghai 201620 China Intelligent multimedia information processing Lab College of Software Northeastern University Shenyang Liaoning Province 110004 China Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 China School of Computer Science and Technology Nanjing Normal University Nanjing China Department of Electrical Engineering The City College of New York CUNY New York USA Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing Nanjing China School of Electronic Science and Engineering Nanjing University Nanjing Jiangsu 210046 China College of Engineering Nanyang Technological University Singapore 639798 Singapore School of Electronic Information Shanghai Dianji University Shanghai China School of Natural Sciences and Mathematics Shepherd University Shepherdstown WV 25443 USA Davis College of Agriculture Natural Resources and Design West Virginia University Morgantown WV 26505 USA State Key Laboratory of Millimeter Waves Southeast University Nanjing 210096 China Center of Medical Physics and Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei China College of Agricultural and Life Sciences University of Florida Gainesville FL 32611 USA Courant Institute of Mathematical Sciences New York University New York NY 10012 USA Translational Imaging Division & MRI Unit Columbia University and New York State Psychiatric Institute New York NY 10032 USA Guangxi Key Laboratory of Manufacturing System & Adv

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Development of an AR chart tool for understanding invisible physical phenomena

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AIP Conference Proceedings 2016年第1期1733卷

作者： S. Manabe C. Mouri H. Tenzou T. Kasuga K. Motoki 1Kagawa National College of Technology Advanced Course in Electronics Information and Communication Engineering Electronic Systems Course 551 Kohda Takuma-cho Mitoyo-shi Kagawa 769-1192 Japan 2Kagawa National College of Technology Director of Technical Education Support Center 551 Kohda Takuma-cho Mitoyo-shi Kagawa 769-1192 Japan 3Kagawa National College of Technology Dept. of Electronic Systems Engineering 551 Kohda Takuma-cho Mitoyo-shi Kagawa 769-1192 Japan

The purpose of this study was to develop a tool to overlay a 3D chart on a real measurement field by using ARToolKit library and AR SDK. The tool was also designed to receive measurement data from any device as TCP/IP packets sent through a LAN. The tool is capable of drawing five types of charts; bar, bubble, red-line, spectrum-line and 3D-area. The tool requires a conventional PC, a USB camera, and an AR tag printed on a paper. The AR tag is laid on the measurement area and is recognized as the base level from where to draw the chart. 3D CG objects of the charts are overlaid on the images captured by the USB camera through recognition of the AR tag. A sample code was also prepared to manage DAQ data. The sample code for Windows OS can send the data as CSV text data via TCP/IP to the AR chart tool.

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Modelling a moving land-sea boundary using adaptive mesh refinement 10

Modelling a moving land-sea boundary using adaptive mesh ref...

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10th Coasts, Marine Structures and Breakwaters Conference 2013: From Sea to Shore - Meeting the Challenges of the Sea

作者： Furuyama, Shoichi Maihara, Yusuke Dept. of Electronics and Information Engineering Toyama National College of Technology 1-2 Ebie-Neriya Imizu Toyama933-0293 Japan Toyama National College of Technology Advanced Course of Control Information System Engineering 1-2 Ebie-Neriya Imizu Toyama933-0293 Japan

ISBN: (纸本)9780727759771

High resolution calculation for the Tsunami run-up simulation at Toyama-bay in Japan is achieved by using Adaptive Mesh Refinement (AMR) method. The method is tested at Hamana-lake for the tide simulation, the water level rising simulation at Toyama-bay and Tsunami runs-up simulation at Toyama-bay. AMR generated the fine mesh at the boundary line between the water and the land. In the case of the tide simulation at Hamana-lake, the reasonably agreement result with the experimental data was given by using the AMR. In the case of water level rising simulation, the method kept the reasonably constant of the total number of calculation meshes by deleting the fine meshes at the far from the interested region, and the method was applied Tsunami run-up simulation at the Toyama-bay.

关键词： Water levels

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Research on applied technology with a continues method for unit commitment problem

Research on applied technology with a continues method for u...

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2nd International Conference on Mechanics, Dynamic systems and Material engineering, MDSME 2014

作者： Yang, Lin Feng Li, Jie Ge, Zhi Hui Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology School of Computer and Electronics and Information Guangxi University Nanning 530004 Guangxi China Department of Computer Electronics and Information Engineering Guangxi Polytechnic Nanning 530226 Guangxi China

ISBN: (纸本)9783038351337

A continue method based on relaxation is applied to solve the unit commitment problem (UCP). At first, the primal UCP is reformulated as a simple mixed integer quadratic programming (MIQP), and then the MIQP is solved by interior point method (IPM) and commercial software CPLEX. The first continues problem, UCP without integer constraints, can be solved by IPM to get the no integer solution. The second continues problem, an equivalent continues problem of UCP, can be solved starting from the solution obtained in first problem. © (2014) Trans Tech Publications, Switzerland.

关键词： Integer programming

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A design of bilateral servo system with self-tuning function

A design of bilateral servo system with self-tuning function

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International Conference on advanced Mechatronic systems (ICAMechS)

作者： Hirofumi Ohtsuka Tomoaki Nakamura Dept. of Control and Information System Engineering Kumamoto National College of Technology Kumamoto Japan Kumamoto National College of Technology Advanced Course of Electronics and Information System Engineering Kumamoto Japan

Manual micromanipulation requires for operators to have enough experience and outstanding skill. A bilateral servo system attempts to convert difficult tasks so as to be felt easier for skilled operators. One of such a bilateral servo system, which reduces the displacement and expands the force, has been proposed by Kikuchi and Shiraishi[1]. However, concerning to the offset between a master manipulator's stiffness and a slave manipulator's one, its adverse effects of the operation stability becomes remarkable for the change of operator's dynamics. In an actual use, such offset may cause a heavy damage of the manipulated object by the operation. In this study, we propose a self-tuning mechanism which can eliminate such offset problem. And we have confirmed the effectiveness of the proposed method by numerical simulation.

关键词： Manipulators Force Numerical simulation Servomotors Steady-state

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Cooperative Capture by Multi-Agent using Reinforcement Learning: Application for Security Patrol systems

Cooperative Capture by Multi-Agent using Reinforcement Learn...

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Asian Control Conference

作者： SHIMADA Yasuyuki MATSUMOTO Tadashi HARADA Maya OHTSUKA Hirofumi PBL & Integrated Education Center National Institute of Technology Kumamoto College Advanced Course of Electronics and Information Systems Engineering National Institute of Technology Kumamoto College Dept. of Control & Information Systems Engineering National Institute of Technology Kumamoto College

ISBN: (纸本)9781479978632

Aim of this study is to create a security patrol system which is a cooperative capturing system by using multi-agent in the building. A host computer deploys autonomous robots as agents and find the best strategy to enclose an intruder. From the view point of the pursuit problem by multi-agent, reinforcement learning theory is one of choices to find way how to enclose an intruder. In order to apply reinforcement learning theory to security patrol systems, this study introduces how to discretize patrol areas. Some RFID tags are embedded in the floor and each autonomous robot can know the location where it is by sensing RFID tags, then sends locational information to the host computer. The host computer calculates positioning of the autonomous robots based on received locational data through wireless network. We make a prototype of patrol system and show how it works in this paper.

关键词： Security Mobile robots Radiofrequency identification Robot kinematics Learning (artificial intelligence) Computers

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