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Dark Forest Algorithm:A Novel Metaheuristic Algorithm for Global Optimization Problems

computers, materials & Continua 2023年第5期75卷 2775-2803页

作者： Dongyang Li Shiyu Du Yiming Zhang Meiting Zhao Faculty of Electrical Engineering and Computer Science Ningbo UniversityNingbo315000China Engineering Laboratory of Advanced Energy Materials Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315000China School of Material and Chemical Engineering Ningbo UniversityNingbo315000China

Metaheuristic algorithms,as effective methods for solving optimization problems,have recently attracted considerable attention in science and engineering *** are popular and have broad applications owing to their high efficiency and low *** algorithms are generally based on the behaviors observed in nature,physical sciences,or *** study proposes a novel metaheuristic algorithm called dark forest algorithm(DFA),which can yield improved optimization results for global optimization *** DFA,the population is divided into four groups:highest civilization,advanced civilization,normal civilization,and low *** civilization has a unique way of *** verify DFA’s capability,the performance of DFA on 35 well-known benchmark functions is compared with that of six other metaheuristic algorithms,including artificial bee colony algorithm,firefly algorithm,grey wolf optimizer,harmony search algorithm,grasshopper optimization algorithm,and whale optimization *** results show that DFA provides solutions with improved efficiency for problems with low dimensions and outperforms most other algorithms when solving high dimensional *** applied to five engineering projects to demonstrate its *** results show that the performance of DFA is competitive to that of current well-known metaheuristic ***,potential upgrading routes for DFA are proposed as possible future developments.

关键词： Metaheuristic algorithm global optimization

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Enhancement-Mode Multichannel MoS2 Transistor with Spacer engineering and Design-Technology Co-Optimization Based on the 8" Platform

Enhancement-Mode Multichannel MoS2 Transistor with Spacer En...

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2024 IEEE International Electron Devices Meeting, IEDM 2024

作者： Zhu, Jiadi Yao, Aijia Wu, Peng Jiao, Yixuan Park, Ji-Hoon Jiang, Jianfeng Yang, Tilo H. Gupta, Ayush S. Cheema, Suraj S. Kong, Jing Palacios, Tomás Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology CambridgeMA02139 United States Department of Material Science and Engineering Massachusetts Institute of Technology CambridgeMA02139 United States

ISBN: (纸本)9798350365429

This paper studies highly scaled, multichannel MoS2 transistors (MCTs) through both experiments and simulations. A low-temperature MoS2 synthesis enables a novel integration scheme for MCTs on 8" wafers with self-aligned source/drain contacts, multiple gate-dielectric-MoS2 channel-dielectric-gate layers stacked on 8" Si wafers, reduced lithography steps and no sacrificial layers. A 1-channel, double-gate MoS2 transistor features 386 μA/μm on current (ION) at VDS=1 V, subthreshold swing SS = 85 mV/dec, and record performance among 2D gate-all-around (GAA) transistors and MCTs. A low drain-induced-barrier-lowering DIBL = 28 mV/V is also demonstrated. We also report the first functional high performance 2-channel MoS2 transistor with 673 μA/μm ION and 88 mV/dec SS at 400 nm channel length (LCh). In parallel, local-back gate transistors with 1.5 nm physical oxide thickness and 4 nm physical channel length were fabricated to calibrate the device model at extreme scales for design-technology co-optimization (DTCO). Thanks to the DTCO analysis, a projection of multi-channel transistor’s scaling, including power, and performance for "1 nm" technology node and beyond is presented. © 2024 IEEE.

关键词： Silicon wafers

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Insight into Janus V2COS as anode material of high-performance alkali metal ion battery: Diffusion barrier, recyclability, specific capacity, and open-circuit voltage

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Physical Review materials 2024年第8期8卷 085801-085801页

作者： Fanfan Wang Jun Yuan Zhufeng Zhang Baoan Song Junhua Zhao Jincheng Yue Tian Xu Jun Zhou School of Physical Science and Technology Faculty of Electrical Engineering and Computer Science College of Chemical and Material Engineering School of Electronic Information Engineering

Transition metal carbides, nitrides, and carbonitrides, known as MXenes, exhibit exceptional conductivity, stability, and large specific surface area, rendering them promising candidates for anode materials in rechargeable batteries. Herein, we investigate the electrochemical characteristics of the Janus MXene V2COS monolayer, as an anode material of alkali metal ion batteries by using first-principles calculations. The phonon band structure and ab initio molecular dynamics simulations confirm the stability of the Janus V2COS monolayer. The mechanical and electrical properties of the Janus V2COS monolayer are explored and proved to have good mechanical stability and electrical conductivity. The surface of the Janus V2COS monolayer demonstrates the facile adsorption of alkali metal ions and low diffusion barriers. As an anode material, the recyclability of the Janus V2COS has been verified in the ion intercalation/deintercalation processes. Furthermore, the theoretical specific capacities and the open-circuit voltages of the Janus V2COS monolayer are calculated to be 165.54mAh/g and 2.62 V for Li, 662.18mAh/g and 0.76 V for Na, and 294.43mAh/g and 0.4 V for K, respectively. It presents that the Janus V2COS monolayer is a potential anode material of sodium-ion batteries and potassium-ion batteries.

关键词： Electrochemical properties 2-dimensional systems Density functional theory First-principles calculations

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Periodic poling of single crystal thin film barium titanate-on-insulator

Periodic poling of single crystal thin film barium titanate-...

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CLEO: science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics

作者： Aashna, Pragati Lin, Hong-Lin Cao, Yu Gao, Yuan Mohanraj, Sakthi Sanjeev Zhu, Di Danner, Aaron Department of Electrical and Computer Engineering National University of Singapore 117583 Singapore Department of Material Science and Engineering National University of Singapore 117575 Singapore Institute of Materials Research and Engineering Agency for Science Technology and Research 138634 Singapore

We report, for the first time, electric field periodic poling of single-crystal thin film barium titanate grown using pulsed-laser-deposition on dysprosium scandate substrate. Uniform domains with periods 5-7 μm are obtained and imaged using piezo-response-force-microscopy. © Optica Publishing Group 2024

关键词： Single crystals

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Periodic poling of single crystal thin film barium titanate-on-insulator

Periodic poling of single crystal thin film barium titanate-...

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2024 Conference on Lasers and Electro-Optics, CLEO 2024

ISBN: (纸本)9781957171395

关键词： Barium titanate

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Machine-Learning-Assisted Optimization of Type-II Superlattices for Enhanced Vertical Hole Mobility 23

Machine-Learning-Assisted Optimization of Type-II Superlatti...

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23rd International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2023

作者： Glennon, John Bellotti, Enrico Boston University Div. of Material Science and Engineering BostonMA02215 United States Boston University Div. of Material Science and Engineering Dep. of Electrical and Computer Engineering BostonMA02215 United States

ISBN: (纸本)9798350314298

Gaussian process regression is used to develop a model for predicting the superlattice (SL) structures grown on a 6.3 Å lattice. This model is used to search for optimized hole transport properties. Nonequilibrium Green's functions calculations are used to determine the vertical hole mobility of the structure which is compared with both the calculated and experimental results for an experimental SL grown on a GaSb substrate. Ultimately, a simple analytical model is used to approximate and compare the quantum efficiency of a photodiode containing each structure demonstrating an improvement in device performance using the optimized SL structure. © 2023 IEEE.

关键词： Gallium compounds

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Control of Extended Defect Growth in Perovskite Oxide Thin Films using Nanoscale Patterning

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Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada 2023年第1期29卷 541-542页

作者： Ghosh, Supriya Liu, Fengdeng Jalan, Bharat Mkhoyan, K Andre Department of Chemical Engineering and Material Science University of Minnesota Minneapolis MN United States Department of Electrical and Computer Engineering University of Minnesota Minneapolis MN United States

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Towards Efficient Automatic Oracle Synthesis and Resource Estimation Using QDK and QIR 4

Towards Efficient Automatic Oracle Synthesis and Resource Es...

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4th IEEE International Conference on Quantum Computing and engineering, QCE 2023

作者： Chen, I-Tung Gupta, Chaman University of Washington Department of Electrical and Computer Engineering SeattleWA United States University of Washington Department of Material Science and Engineering SeattleWA United States

ISBN: (纸本)9798350343236

Automatic oracle synthesis (AOS) provides a promising route to speed up the process of constructing a complex quantum oracle. Here, we expand the existing AOS in the Microsoft Quantum Development Kit (QDK) by adding new functionalities and introducing a new workflow. We also optimize the AOS process by reducing the number of T gates using measurement-based uncomputation. Furthermore, we compare the resource requirements of the oracles generated using AOS to those of the existing QDK library oracles using the Azure Quantum Resource Estimator. The results suggest that the oracles generated using AOS perform better in runtime but use more qubits compared to the corresponding QDK library oracle. With the presented workflow, one can easily implement and estimate the quantum resources required for oracles with complex arithmetic functions. Finally, we present a strategy that can further reduce the number of physical qubits needed in AOS. © 2023 IEEE.

关键词： Number theory

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Radiative cooling for passive thermal management towards sustainable carbon neutrality

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National science Review 2023年第1期10卷 87-97页

作者： Jun Liang Jiawei Wu Jun Guo Huagen Li Xianjun Zhou Sheng Liang Cheng-Wei Qiu Guangming Tao Wuhan National Laboratory for Optoelectronics and Optics Valley Laboratory Huazhong University of Science and Technology Department of Electrical and Computer Engineering National University of Singapore MOE Key Laboratory of Thermo-Fluid Science and Engineering School of Energy and Power Engineering Xi'an Jiaotong University Key Laboratory of Education Ministry on Luminescence and Optical Information Technology National Physical Experiment Teaching Demonstration CenterDepartment of PhysicsSchool of Physical Science and Engineering Beijing Jiaotong University State Key Laboratory of Material Processing and Die &Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology

Photonic structures at the wavelength scale offer innovative energy solutions for a wide range of applications,from high-efficiency photovoltaics to passive cooling,thus reshaping the global energy *** cooling based on structural and material design presents new opportunities for sustainable carbon neutrality as a zero-energy,ecologically friendly cooling *** this review,in addition to introducing the fundamentals of the basic theory of radiative cooling technology,typical radiative cooling materials alongside their cooling effects over recent years are summarized and the current research status of radiative cooling materials is outlined and ***,technical challenges and potential advancements for radiative cooling are forecast with an outline of future application scenarios and development *** the future,radiative cooling is expected to make a significant contribution to global energy saving and emission reduction.

关键词： photonic structures radiative cooling energy saving and emission reduction carbon neutrality

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Non-contact Burst Monitoring via Dual Fiber Fabry-Perot Interferometers

Non-contact Burst Monitoring via Dual Fiber Fabry-Perot Inte...

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CLEO: science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics

作者： Wang, Ruixuan Homa, Daniel Dejneka, Zach Theis, Logan Wang, Anbo Pickrell, Gary Center for Photonics Technology The Bradley Department of Electrical and Computer Engineering Virginia Tech BlacksburgVA United States Center for Photonics Technology Department of Material Science and Engineering Virginia Tech BlacksburgVA United States

Introducing a dual Fabry-Perot sensor system for non-contact pipe burst monitoring. With a lab-standard dual-ferrule probe, we measure absolute distance from the pipe and differentiate bursting events from absolute dr... 详细信息

关键词： Fabry-Perot interferometers

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