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Correction: Materials laboratories of the future for alloys, amorphous, and composite materials (MRS Bulletin, (2025), 50, 2, (190-207), 10.1557/s43577-024-00846-y)

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MRS Bulletin 2025年 1-2页

作者： Banerjee, Sarbajit Meng, Y. Shirley Minor, Andrew M. Zhang, Minghao Zaluzec, Nestor J. Chan, Maria K.Y. Seidler, Gerald McComb, David W. Agar, Joshua Mukherjee, Partha P. Melot, Brent Chapman, Karena Guiton, Beth S. Klie, Robert F. McCue, Ian D. Voyles, Paul M. Robertson, Ian Li, Ling Chi, Miaofang Destino, Joel F. Devaraj, Arun Marquis, Emmanuelle A. Segre, Carlo U. Liu, Huinan H. Yang, Judith C. Momeni, Kasra Misra, Amit Abdolrahim, Niaz Medvedeva, Julia E. Cai, Wenjun Sehirlioglu, Alp Dizbay-Onat, Melike Mehta, Apurva Graham-Brady, Lori Maruyama, Benji Rajan, Krishna Warner, Jamie H. Taheri, Mitra L. Kalinin, Sergei V. Reeja-Jayan, B. Schwarz, Udo D. Simon, Sindee L. Brown, Craig M. Department of Chemistry and Department of Materials Science & Engineering Texas A & M University College Station United States Pritzker School of Molecular Engineering The University of Chicago Chicago United States Department of Materials Science & Engineering University of California Berkeley Berkeley United States National Center for Electron Microscopy Molecular Foundry Lawrence Berkeley National Laboratory Berkeley United States Center for Nanoscale Materials Argonne National Laboratory Lemont United States Department of Physics University of Washington Seattle United States Department of Materials Science & Engineering The Ohio State University Columbus United States Department of Mechanical Engineering and Mechanics Drexel University Philadelphia United States School of Mechanical Engineering Purdue University West Lafayette United States Department of Chemistry University of Southern California Los Angeles United States Department of Chemistry Stony Brook University The State University of New York Stony Brook United States Department of Chemistry University of Kentucky Lexington United States Department of Physics University of Illinois at Chicago Chicago United States Department of Materials Science & Engineering Northwestern University Evanston Bangladesh Department of Materials Science & Engineering University of Wisconsin–Madison Madison United States Department of Materials Science and Engineering University of Pennsylvania Philadelphia United States Department of Mechanical Engineering and Materials Science Duke University Durham United States Department of Chemistry Creighton University Omaha United States Physical and Computational Sciences Directorate Pacific Northwest National Laboratory Richland United States Department of Materials Science & Engineering University of Michigan–Ann Arbor Ann Arbor United States Department of Physics Illinois Institute of Technology Chicago United States Department of Bioengineering and the Mater

This article was updated to correct Minghao Zhang’s affiliation from "Pritzker School of Molecular engineering, The University of Chicago, Chicago, USA" to "Pritzker School of Molecular engineering, The University of Chicago, Chicago, USA;Argonne National Laboratory, Lemont, USA." Argonne National Laboratory was left off the original publication. © The Author(s) 2025.

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A survey of free space optical networks

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Digital Communications and Networks 2017年第2期3卷 67-77页

作者： In Keun Son Shiwen Mao Department of Electrical and Computer Engineering Auburn University Auburn AL USA Defense Acquisition Program Administration (DAPA) Republie of Korea

Free Space Optical （FSO） networks, also known as optical wireless networks, have emerged as viable candidates for broadband wireless communications in the near future. The range of the potential application of FSO networks is extensive, from home to satellite. However, FSO networks have not been popularized because of insufficient availability and reliability. Researchers have focused on the problems in the physical layer in order to exploit the properties of wireless optical channels. However, recent technological developments with successful results make it practical to explore the advantages of the high bandwidth. Some researchers have begun to focus on the problems of network and upper layers in FSO networks. In this survey, we classify prospective global FSO networks into three subnetworks and give an account of them. We also present state-of- the-art research and discuss what kinds of challenges exist.

关键词： Wireless access networks Free space optical networks Free space optical communications Network architecture Optical wireless networks Satellite networks

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A Monitoring and Warning System for Hazards in Coal Mines using CNN and Sensor Fusion 5

A Monitoring and Warning System for Hazards in Coal Mines us...

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5th International Conference on Advancements in Computational Sciences, ICACS 2024

作者： Alam, Abeera Farooq Tabassum, Maham Shabbir, Mubaraka Raza, Muhammad Ali Khan, Farhan Habib University Computer Engineering Program Karachi Pakistan Habib University Electrical Engineering Program Karachi Pakistan

ISBN: (纸本)9798350394764

In the realm of coal mining, safety and risk management stand as paramount challenges, underscored by the inherent perils like structural failures and the presence of hazardous gases such as methane. Recognizing the urgent need for enhanced safety measures, this paper introduces a novel system seamlessly integrating structural integrity assessment with gas concentration analysis to ascertain the warning level in coal mines. The core objective revolves around fortifying safety protocols by implementing effective monitoring and early warning systems. This multifaceted approach encompasses addressing potential hazards, preventing accidents, reducing environmental impact, and, above all, safeguarding the well-being of mine workers. The system, intertwining structural monitoring and gas concentration measurement, dynamically generates real-time risk assessments and alerts based on the integrated data. Against the backdrop of these intricate challenges, the research strives to propel substantial advancements in mining safety practices. By harnessing the capabilities of camera imagery, machine learning, and gas sensors, it envisions a future marked by elevated safety standards and a noteworthy reduction in incidents within coal mines. © 2024 IEEE.

关键词： Structural integrity

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ANTENNA PROPERTIES OF PROBES USED IN ION-ACOUSTIC-WAVE EXPERIMENTS

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RADIO SCIENCE 1977年第6期12卷 935-939页

作者： CHRISTENSEN, T HERSHKOWITZ, N SCHELLER, A LONNGREN, KE The University of Iowa Iowa City Iowa 52242 Department of Physics and Astronomy. Program of Electrical and Computer Engineering.

This paper describes a series of experiments designed to examine the antenna characteristics of probes which are used as detectors in ion-acoustic wave experiments. Reception patterns are measured which are in qualitative agreement with theoretical predictions. The near-field antenna pattern of the wave-launching grid is found to be important.

关键词： Probes Antenna measurements Plasmas Antenna radiation patterns Dipole antennas Receiving antennas

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Mobile robot position control in environment with static obstacles

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IET Cyber-Systems and Robotics 2020年第2期2卷 78-87页

作者： Konstantinos Giannousakis Anthony Tzes Electrical&Computer Engineering Department University of PatrasRio 26500Greece Electrical&Computer Engineering Program New York University Abu DhabiAbu DhabiP.O.Box 129188United Arab Emirates

This study addresses the problem of efficiently navigating a differential drive mobile robot to a target pose in a region with obstacles,without explicitly generating a *** robot is assumed to be equipped with an omnidirectional range sensor,while the region may or may not be a priori *** the known obstacles in each iteration of the controller,the shortest path connecting the robot and the target point provides a raw desired movement *** the unobstructed area in that direction,the size of the robot and the obstacle contours in its visibility range,the reference direction is ***,respecting the velocity and acceleration constraints of the robot,the angular velocity is properly selected to rotate the robot towards the reference direction,while the linear velocity is chosen to efficiently minimise the distance to the final target,as well as to avoid *** the robot has reached the target,the controller switches to orientation mode in order to fix the *** studies demonstrate the effectiveness of the algorithm.

关键词： robot visibility shortest

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Design of a lab component on switching mode DC-DC converters for analog electronics courses 122

Design of a lab component on switching mode DC-DC converters...

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2015 122nd ASEE Annual Conference and Exposition

作者： Kim, Yoon G. Electrical and Computer Engineering Program Engineering Department Calvin College MI United States

This paper presents a practical approach to teaching an introductory-level laboratory experiment focused on the analysis of switching-mode DC-DC converters. This experiment would take place in an analog electronics course as a laboratory component for junior undergraduate electrical and computer engineering students. Switching mode power supplies have been used in industries and consumer electronics for many decades. Recently, they have become pervasive in our daily life as many smartphones, portable computing devices, and renewable energy systems are using switching mode power converters. Due to the wide acceptance of this technology, a lab component has been added in an analog electronics course to introduce switching-mode DC-DC conversion. The approach taken is to integrate students' knowledge and experiences with electronic discrete components such as BJTs, diodes, inductors and other passive devices and to enhance their learning about non-linear circuits utilizing low-voltage, low-power switching power converter experiments. The lab is designed to use general purpose components, which are usually available in electrical engineering laboratories and is designed to avoid special-purpose switching power conversion ICs, which embed all of the function blocks necessary (including switching transistors) inside the ICs. These ICs are specially designed to reduce the overall manufacturing cost of switching power supplies. Although using these ICs is a cost effective way to mass-produce power supplies, using them in an undergraduate-level electronics lab would limit the students' learning about the theory behind switching power supplies. The experiments in the lab utilize BJTs, Schottky-barrier diodes, inductors, and oscillator circuits running at 100 kHz as the switching frequency. The experiment starts by exploring a boost type converter topology, demonstrating to students that such circuits can produce a voltage higher than the input voltage. This should arouse the s

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Bi_2Se_3/C Nanocomposite as a New Sodium-Ion Battery Anode Material

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Nano-Micro Letters 2018年第3期10卷 135-143页

作者： Lixin Xie Ze Yang Jingying Sun Haiqing Zhou Xiaowei Chi Hailong Chen ANDy X.Li Yan Yao Shuo Chen Department of Physics and TcSUH University of Houston Department of Electrical and Computer Engineering and Materials Science and Engineering Program University of Houston The Woodruff School of Mechanical Engineering Georgia Institute of Technology Clements High School

Bi_2Se_3 was studied as a novel sodium-ion battery anode material because of its high theoretical capacity and high intrinsic conductivity. Integrated with carbon,Bi_2Se_3/C composite shows excellent cyclic performance and rate capability. For instance, the Bi_2Se_3/C anode delivers an initial capacity of 527 mAh g^(-10) at 0.1 A g^(-1) and maintains 89% of this capacity over 100 cycles. The phase change and sodium storage mechanism are also carefully investigated.

关键词： Bi2Se3 Sodium-ion battery High-energy ball milling Sodium storage mechanism

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Teaching digital logic design using the GOAL (Guided On-demand Adaptive Learning) system

Teaching digital logic design using the GOAL (Guided On-dema...

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118th ASEE Annual Conference and Exposition

作者： Williams, Ronald D. Dugan, Joanne Bechta Department of Electrical and Computer Engineering Computer Engineering Program University of Virginia United States

GOAL combines advances in technology with advances in understanding of human learning to teach engineering concepts more efficiently. GOAL can improve the efficiency and availability of engineering instruction both on-demand asynchronous learning and in the traditional classroom. GOAL will automate and improve the delivery of facts and concepts, broaden access to this material, and create opportunities for the inclusion of additional material. The GOAL project exploits results from research into the way people learn combined with technology providing instruction using established techniques for effective teaching. This work recognizes that different students learn in different ways, at different times and places, and at different rates. This project provides instructional guidance available ondemand at times and places convenient to each student. Our instruction is adaptive so that the student can proceed at his or her own pace using instructional techniques best suited to their own individual learning styles while their progress can be tracked and their instruction can be adjusted in response to their actions. GOAL modules are not easy or inexpensive to produce, especially if compared with recorded lectures or slide presentations with recorded voice channels. The verbal content is scripted, recorded in a sound booth, filtered and processed into short segments of about a minute's length or less. The visual content is developed using Adobe® Flash®, Soundbooth®, Fireworks® and other tools and is carefully synchronized with the audio track. It seems to take about a hour's time to produce a segment of about a minute's length. Of course, once a segment is developed it can be used infinitely often. Detailed data is collected as the concepts are taught to attain new insight into the learning process. Student A viewed all the concepts at a single sitting with no pauses or rollbacks, indicating a more reflective approach to learning. Student B paused and restarted the presen

关键词： Students

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A Low Power Digitizer Array with Adaptive Split Current Source for 3-D-Stacked 100 MP High Dynamic Range Imager

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IEEE Sensors Journal 2025年

作者： Lee, Youngwoo Kim, Seyeon Kim, Jinha Kim, Suhwan Jun, Jaehoon Seoul08826 Korea Republic of Samsung Electronics Hwaseong18448 Korea Republic of Inha University Department of Electrical and Computer Engineering Program in Semiconductor Convergence Incheon22212 Korea Republic of Seoul National University Department of Electrical and Computer Engineering Seoul08826 Korea Republic of Gwanak Analog Company Ltd Seoul08826 Korea Republic of

The increasing demand for high dynamic range (HDR), power efficiency, and high resolution has driven the adoption of single-exposure dual conversion gain (DCG) techniques. This paper proposes an adaptive split current source to optimize power consumption in single-exposure DCG readouts. By splitting the comparator bias current, the power consumption of the digitizer array can be adaptively optimized based on the conversion gain (CG) of pixel in single-exposure DCG operation. Additional power-saving features including decision-feedback and auto-zeroing (AZ) power-down techniques are also implemented to further improve power efficiency. The proposed digitizer chip was fabricated in a 28 nm CMOS process, achieving a power consumption reduction of 44.5% in comparator. The integral nonlinearity (INL) was measured as +2.67/–2.34 LSB in high conversion gain (HCG) and +2.95/–1.92 LSB in low conversion gain (LCG). The input-referred random noise (RN) values of 2.17 LSB (HCG) and 2.41 LSB (LCG) were measured at an analog gain of 16, corresponding to 93 μVrms and 103 μVrms, respectively. The prototype chip shows a highly competitive figure of merit (FoM) of 2.41 mV∙pJ/pixel/frame. © 2001-2012 IEEE.

关键词： CMOS integrated circuits

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A method to recover counting distributions from their characteristic functions

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IEEE SIGNAL PROCESSING LETTERS 1996年第6期3卷 184-186页

作者： Gubner, JA Hayat, MM Department of Electrical and Computer Engineering University of Wisconsin Madison WI USA Electro-optics Graduate Program University of Dayton Dayton OH USA

A method that does not use numerical integration is presented for approximating the cumulative distribution of integer-valued random variables from their characteristic functions. Bounds on the approximation error are... 详细信息

关键词： .random variables characteristic function

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