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development of a Rust Removal Tool Using a Diffractive Optical Element and High-power Laser and Its Application to Asbestos-melting Tools

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NTT Technical Review 2022年第10期20卷 77-81页

作者： Kawamura, Sohan Takayanagi, Kaori Smart Maintenance and Management Technology Development Project Health and Environmental-Sensing Device Project NTT Device Innovation Center Japan Sustainable System Group Zero Environmental Impact Research Project NTT Space Environment and Energy Laboratories Japan

To improve the efficiency of rust removal on telecommunication towers, we developed a prototype of a compact, lightweight rust-removal tool using a diffractive optical element and high-power laser that weighs only 500 g. With the aim of applying this technology to asbestos removal, we experimentally irradiated asbestos with a laser, and the results of the experiment suggest that using a laser in this manner can melt and remove asbestos and reduce its risk as a health hazard to workers. © 2022 Nippon Telegraph and Telephone Corp.. All rights reserved.

关键词： Asbestos

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Based on the Scenario Set Generation technology, the Shared Energy Storage Site Selection and Capacity Determination Problem Considering the Grid Constraints

Based on the Scenario Set Generation Technology, the Shared ...

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Power Science and technology (ICPST), IEEE International Conference on

作者： Xiaobiao Fu Jinyu Guo Baoju Li Cuiping Li Yao Wang Junhui Li Guanqun Zhang Xingxu Zhu Dispatching and Control Center State Grid Jilin Electric Power Co. Ltd Chang Chun China Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology Ministry of Education(Northeast Electric Power University) Ji Lin China Power Science Research Institute State Grid Jilin Electric Power Co. Ltd Chang Chun China

ISBN: (数字)9798350349030

ISBN: (纸本)9798350349047

This paper addresses the shared energy storage siting and sizing problem, considering grid constraints based on scenario generation techniques. In the context of high penetration of renewable energy, the power system faces practical challenges such as increased uncertainty and scarcity of flexible resources. To tackle these issues, a two-layer optimization model is proposed in this study. It utilizes scenario generation techniques to obtain possible scenarios for renewable energy and load outputs, and incorporates grid constraints for economic dispatch. Through iterative optimization, an optimal shared energy storage siting and sizing solution that meets the requirements of the power grid is obtained. Additionally, the paper discusses the impact on the accommodation capacity of renewable energy and proposes countermeasures in system economic dispatch. However, there are still limitations in uncertainty estimation, energy storage planning, and investment cost calculations in this paper. Furthermore, further enhancement is needed in terms of quantification theories supporting the economic evaluation of shared energy storage siting and sizing. Overall, this research aims to provide an optimization approach for the shared energy storage siting and sizing problem, incorporating scenario generation techniques and grid constraints, to promote stable operation and economic development of power systems with high penetration of renewable energy.

关键词： Renewable energy sources Uncertainty Costs Optimization models Robustness Planning Scenario generation

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Analysis and prediction of the dual-stream Hot Jet-Flap interaction noise 27

Analysis and prediction of the dual-stream Hot Jet-Flap inte...

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27th International Congress on Sound and Vibration, ICSV 2021

作者： Bai, Baohong Li, Xiaodong Xu, Zhiyuan Beijing Aircraft Technology Research Institute Commercial Aircraft Corporation of China Ltd. Beijing Key Laboratory of Simulation Technology for Civil Aircraft Design Beijing China Key Laboratory of Aerodynamic Noise Control China Aerodynamic Research and Development Center Mianyang China School of Energy and Power Engineering Beihang University Beijing China AVIC Shenyang Engine Design Institute Shenyang China

ISBN: (纸本)9788378807995

The experimental investigation of jet-flap-interaction (JFI) noise on dual-stream hot jets is conducted in the full anechoic chamber of Beihang University. Detailed analysis revealed that the high frequency noise reflection by the flap surfaces and the dipole source directivity are eliminated by the strong refraction effect in dual-stream hot jet. Furthermore, the non-harmonic jet impingement tonal noise is generated by the feedback mechanism and its frequencies are in good agreement with Heller & Bliss feedback prediction formula. In addition, the jet velocity has a significant effect on the broadband JFI noise. For the prediction of jet-flap interaction noise, a semi-empirical two-source prediction model is developed based on previous study by present authors. The first source is jet alone noise and the second source is caused by the flap trailing edge scattering mechanism. This paper improved the prediction model in term of amplitude function and compared the predicted results with the experimental measurements. It is demonstrated that the semi-empirical two-source prediction model agree well with experimental results at different observer angles and jet operating conditions. © "Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021. All rights reserved.

关键词： Jet flaps

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DPA-2:a large atomic model as a multitask learner

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npj Computational Materials 2024年第1期10卷 185-199页

作者： Duo Zhang Xinzijian Liu Xiangyu Zhang Chengqian Zhang Chun Cai Hangrui Bi Yiming Du Xuejian Qin Anyang Peng Jiameng Huang Bowen Li Yifan Shan Jinzhe Zeng Yuzhi Zhang Siyuan Liu Yifan Li Junhan Chang Xinyan Wang Shuo Zhou Jianchuan Liu Xiaoshan Luo Zhenyu Wang Wanrun Jiang Jing Wu Yudi Yang Jiyuan Yang Manyi Yang Fu-Qiang Gong Linshuang Zhang Mengchao Shi Fu-Zhi Dai Darrin M.York Shi Liu Tong Zhu Zhicheng Zhong Jian Lv Jun Cheng Weile Jia Mohan Chen Guolin Ke Weinan E Linfeng Zhang Han Wang AI for Science Institute BeijingP.R.China DP Technology BeijingP.R.China Academy for Advanced Interdisciplinary Studies Peking UniversityBeijingP.R.China State Key Lab of Processors Institute of Computing TechnologyChinese Academy of SciencesBeijingP.R.China University of Chinese Academy of Sciences BeijingP.R.China HEDPS CAPTCollege of EngineeringPeking UniversityBeijingP.R.China Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingboP.R.China CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Chinese Academy of SciencesNingboP.R.China School of Electronics Engineering and Computer Science Peking UniversityBeijingP.R.China Shanghai Engineering Research Center of Molecular Therapeutics&New Drug Development School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghaiP.R.China Laboratory for Biomolecular Simulation Research Institute for Quantitative Biomedicine and Department of Chemistry and Chemical BiologyRutgers UniversityPiscatawayNJUSA Department of Chemistry Princeton UniversityPrincetonNJUSA College of Chemistry and Molecular Engineering Peking UniversityBeijingP.R.China Yuanpei College Peking UniversityBeijingP.R.China School of Electrical Engineering and Electronic Information Xihua UniversityChengduP.R.China State Key Laboratory of Superhard Materials College of PhysicsJilin UniversityChangchunP.R.China Key Laboratory of Material Simulation Methods&Software of Ministry of Education College of PhysicsJilin UniversityChangchunP.R.China International Center of Future Science Jilin UniversityChangchunP.R.China Key Laboratory for Quantum Materialsof Zhejiang Province Department of PhysicsSchool of ScienceWestlake UniversityHangzhouP.R.China Atomistic Simulations Italian Institute of TechnologyGenovaItaly State Key Laboratory of Physical Chemistry of Solid Surface iChEMCollege of Chemistry and Chemical EngineeringXiame

The rapid advancements in artificial intelligence(AI)are catalyzing transformative changes in atomic modeling,simulation,and ***-driven potential energy models havedemonstrated the capability to conduct large-scale,long-duration simulations with the accuracy of ab initio electronic structure ***,the model generation process remains a bottleneck for large-scale *** propose a shift towards a model-centric ecosystem,wherein a large atomic model(LAM),pretrained across multiple disciplines,can be efficiently fine-tuned and distilled for various downstream tasks,thereby establishing a new framework for molecular *** this study,we introduce the DPA-2 architecture as a prototype for ***-trained on a diverse array of chemical and materials systemsusing a multi-task approach,DPA-2demonstrates superior generalization capabilities across multiple downstream tasks compared to the traditional single-task pre-training and fine-tuning *** approach sets the stage for the development and broad application of LAMs in molecular and materials simulation research.

关键词： DPA establishing thereby

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Ship structure-borne noise analysis based on secondary development of VA one

Ship structure-borne noise analysis based on secondary devel...

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International Joint Conference on Civil and Marine Engineering (JCCME 2023)

作者： J. Pei Y. Liu L. Ye W. Ma J. Zhang CSSC Cruise Technology Development Co. Ltd. Shanghai People's Republic of China National Engineering Research Center of Special Equipment and Power System for Ship and Marine Engineering Shanghai People's Republic of China School of Energy and Power Jiangsu University of Science and Technology Zhenjiang People's Republic of China

ISBN: (数字)9781837240241

An efficient method is presented for the prediction of the ship structure-borne noise. Statistical Energy Analysis (SEA) is used, and the equations used for the SEA parameters are also presented. Traditionally, the SEA method requires a great deal of work after structures are modelled. It is almost laborious and time-consuming to set damping loss factors and excitation loads for large structures such as ships. In the presented method, the secondary development of VA One is applied, and the processing programs are used in the context of Matlab. Through the secondary development, setting of damping loss factor and loading, solving of SEA model have been carried out. The effectiveness of the present method is illustrated by the computer run of the box model, which containing 16 plate subsystems and 3 acoustic cavity subsystems. The effects of damping loss factors are discussed.

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The Moonlighting Function of Glutaminase 2 Promotes Immune Evasion of Pancreatic Ductal Adenocarcinoma by Tubulin Tyrosine Ligase-like 1-Mediated Yes1 Associated Transcriptional Regulator Glutamylation

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Gastroenterology 2025年第6期168卷 1137-1152页

作者： Chen, Xiao Fu, Haotian Zhu, Shimao Xiang, Zheng Fu, Hong Sun, Zhongquan Zhang, Sitong Zheng, Xiaofeng Hu, Xun Chao, Ming Mao, Zhengwei Bi, Yanli Wang, Weilin Ding, Yuan Department of Hepatobiliary and Pancreatic Surgery The Second Affiliated Hospital Zhejiang University School of Medicine Zhejiang Hangzhou China Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province Zhejiang Hangzhou China Research Center of Diagnosis and Treatment Technology for Hepatocellular Carcinoma of Zhejiang Province Zhejiang Hangzhou China Center for Medical Research and Innovation in Digestive System Tumors Ministry of Education China Cancer Center Zhejiang University Zhejiang Hangzhou China ZJU-Pujian Research & Development Center of Medical Artificial Intelligence for Hepatobiliary and Pancreatic Disease Zhejiang Hangzhou China Department of Gastroenterology and Hepatology The First Affiliated Hospital of Wenzhou Medical University Wenzhou China Department of Pathology & Pathophysiology Department of Breast Surgery of the Second Affiliated Hospital Zhejiang University School of Medicine Zhejiang Hangzhou China Cancer Institute (Key Laboratory of Cancer Prevention and Intervention China National Ministry of Education) The Second Affiliated Hospital Zhejiang University School of Medicine Zhejiang Hangzhou China Interventional Radiology Department of Radiology The Second Affiliated Hospital Zhejiang University School of Medicine Zhejiang Hangzhou China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Zhejiang Hangzhou China

Background & Aims: Elevated programmed cell death-ligand 1 (PD-L1) expression in tumor cells facilitates immune evasion. However, the mechanism via which PD-L1 expression is regulated in pancreatic ductal adenocarcinoma (PDAC) cells remains inadequately elucidated. Methods: Immunoprecipitation, pull-down assays, and mass spectrometry were used to identify glutaminase 2 (GLS2) and yes1 associated transcriptional regulator (YAP1) binding proteins and modification sites. Immunoblotting, immunofluorescence, chromatin immunoprecipitation, and luciferase reporter assays were used to analyze YAP1 activation. Protein expression levels were assessed using immunoblotting, immunoprecipitation, immunofluorescence, and immunohistochemistry. RNA expression levels were analyzed using real-time quantitative polymerase chain reaction. Results: Hypoxia-induced general control nondepressible 5 (GCN5)–mediated acetylation of GLS2 at K151, which enhanced GLS2 interaction with YAP1. Subsequently, tubulin tyrosine ligase-like 1 mediated YAP1 glutamylation at E100 and promoted its nuclear translocation and the activation-dependent transcriptional up-regulation of PD-L1 expression. The expression of GLS2-K151R or YAP1-E100A mutants in PDAC cells blocked hypoxia-induced PD-L1 expression and enhanced CD4⁺ and CD8⁺ T-cell activation and tumor infiltration, thereby suppressing PDAC tumor growth. Simultaneous administration of MB-3, a GCN5 inhibitor, and an anti–programmed cell death 1 (PD-1) antibody abolished tumor immune evasion, boosting the anti-tumor efficacy of immune checkpoint blockade. Furthermore, GLS2-K151 acetylation and YAP1 E100 glutamylation levels correlated positively with PD-L1 expression and poor prognosis in PDAC patients. Conclusions: The present study revealed a novel mechanism by which hypoxia up-regulates PD-L1 expression and highlighted the involvement of GLS2 in noncanonical metabolic pathways involved in tumor immune evasion, with implications fo

关键词： GLS2 Glutamylation PD-L1 YAP1

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A comparative study of digital x-ray software and detectors

A comparative study of digital x-ray software and detectors

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Biomedical Engineering International Conference (BMEiCON)

作者： Sakunrat Prompalit Nattawut Sinsuebphon Chalinee Thanasupsombat Saowapak Thongvigitmanee Medical Imaging System Research Team Assistive Technology and Medical Devices Research Center (A-MED) National Science and Technology Development Agency (NSTDA) Pathum Thani Thailand

ISBN: (纸本)9781665426282

This paper aimed to evaluate and compare the quality of phantom images captured from various combinations of software and detectors. The setups included alterations in two detector models, three acquisition techniques, and three software where one software has virtual grid processing. Three observers then graded images individually for high contrast resolution, low contrast-detailed detectability, and numbers of separable step wedges. A strong agreement among observers was confirmed using the Kendall coefficient of concordance (w). There are remarkable differences in image quality with software; however, the difference appears slightly among those detector models. Moreover, the virtual grid processed images show a noticeably better contrast resolution.

关键词： Image quality Image resolution Software algorithms Detectors Observers Imaging phantoms Software

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Urban constructed wetlands: Assessing ecosystem services and disservices for safe, resilient, and sustainable cities

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Frontiers of Engineering Management 2023年第4期10卷 582-596页

作者： Aamir Mehmood SHAH Gengyuan LIU Yu CHEN Qing YANG Ningyu YAN Feni AGOSTINHO Cecilia MVBALMEIDA Biagio FGIANNETTI State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentBeijing Normal UniversityBeijing 100875China Beijing Engineering Research Center for Watershed Environmental Restoration&Integrated Ecological Regulation Beijing 100875China Advanced Interdisciplinary Institute of Environment and Ecology Beijing Normal UniversityZhuhai 519087China Key Laboratory for City Environmental Safety and Green Development of the Ministry of Education Institute of Environmental and Ecological EngineeringGuangdong University of TechnologyGuangzhou510006China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou511458China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentBeijing Normal UniversityBeijing100875China Programa de Pós-graduação em Engenharia de Produção Laboratório de Produção e Meio AmbienteUniversidade Paulista(UNIP)São Paulo04026-002Brazil

Climate change and rapid urbanization are pressing environmental and social concerns, with approximately 56% of the global population living in urban areas. This number is expected to rise to 68% by 2050, leading to the expansion of cities and encroachment upon natural areas, including wetlands, causing their degradation and fragmentation. To mitigate these challenges, green and blue infrastructures (GBIs), such as constructed wetlands, have been proposed to emulate and replace the functions of natural wetlands. This study evaluates the potential of eight constructed wetlands near Beijing, China, focusing on their ecosystem services (ESs), cost savings related to human health, growing/maintenance expenses, and disservices using an emergy-based assessment procedure. The results indicate that all constructed wetlands effectively purify wastewater, reducing nutrient concentrations (e.g., total nitrogen, total phosphorus, and total suspended solids). Among the studied wetlands, the integrated vertical subsurface flow constructed wetland (CW-4) demonstrates the highest wastewater purification capability (1.63E+14 sej/m^(2)/yr) compared to other types (6.78E+13 and 2.08E+13 sej/m^(2)/yr). Additionally, constructed wetlands contribute to flood mitigation, groundwater recharge, wildlife habitat protection, and carbon sequestration, resembling the functions of natural wetlands. However, the implementation of constructed wetlands in cities is not without challenges, including greenhouse gas emissions, green waste management, mosquito issues, and disturbances in the surrounding urban areas, negatively impacting residents. The ternary phase diagram reveals that all constructed wetlands provide more benefits than costs and impacts. CW-4 shows the highest benefit-cost ratio, reaching 50%, while free water surface constructed wetland (CW-3) exhibits the lowest benefits (approximately 38%), higher impacts (approximately 25%), and lower costs (approximately 37%) compared to other we

关键词： constructed wetland emergy ecosystem services disservices ternary diagram

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Parallel Optimization of Computational Fluid Dynamics Application code_saturne Based on Next Generation Sunway Supercomputer

Parallel Optimization of Computational Fluid Dynamics Applic...

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International Symposium on Parallel Architectures, Algorithms and Programming (PAAP)

作者： Anjun Liu Yin Liao Xihao Xu YanYan Chen Hongjun Zhong Jianming Wu Bo Kong Alexander Raikov Meng Guo Jinan Key Laboratory of High Performance Industrial Software Jinan Institute of Supercomputing Technology Jinan China Jinan Supercomputing-Zhejiang Yuansuan Industrial Simulation System Joint Laboratory Zhejiang Yuansuan Technology Co. Ltd Hangzhou China Key Laboratory of Computing Power Network and Information Security Ministry of Education Shandong Computer Science Center (National Supercomputer Center in Jinan ) Qilu University of Technology (Shandong Academy of Sciences) Shandong Provincial Key Laboratory of Computer Networks Shandong Fundamental Research Center for Computer Science Jinan China

code_saturne is an open-source general large-scale computational fluid dynamics software independently developed by Electricite de France since 1997. Due to its high computing performance, code_saturne has been widely used in the nuclear industry, heavy fuel and biomass combustion, particle tracking and other computational fluid dynamics fields. In this work, we implemented code_saturne on the new generation Sunway supercomputer (SW26010pro) at the first time. By applying the data value-taking technology of double cache, combined with Sunway shared memory technology, we have adapted the data structure and Modular programming of code_saturne conducively to the new generation Sunway supercomputer (SW26010pro) and accelerated the software hotspots the software hotspots by 1–2 times. After optimizing and porting, this software has successfully served in the numerical simulation of the lateral flow of fuel assemblies in the nuclear industry.

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Unraveling Passivation Mechanism of Imidazolium-Based Ionic Liquids on Inorganic Perovskite to Achieve Near-Record-Efficiency CsPbI_(2)Br Solar Cells

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Nano-Micro Letters 2022年第1期14卷 152-166页

作者： Jie Xu Jian Cui Shaomin Yang Yu Han Xi Guo Yuhang Che Dongfang Xu Chenyang Duan Wenjing Zhao Kunpeng Guo Wanli Ma Baomin Xu Jianxi Yao Zhike Liu Shengzhong Liu Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationShaanxi Key Laboratory for Advanced Energy Devices/Shaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119People’s Republic of China Dalian Institute of Chemical Physics iChEMUniversity of Chinese Academy of SciencesDalian National Laboratory for Clean EnergyChinese Academy of SciencesDalian 116023People’s Republic of China Ministry of Education Key Laboratory of Interface Science and Engineering in Advanced Materials Research Center of Advanced Materials Science and TechnologyTaiyuan University of TechnologyTaiyuan 030024People’s Republic of China Institute of Functional Nano&Soft Materials Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesJoint International Research Laboratory of Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123People’s Republic of China Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells Southern University of Science and TechnologyShenzhen 518055People’s Republic of China State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources North China Electric Power UniversityBeijing 102206People’s Republic of China

The application of ionic liquids in perovskite has attracted wide-spread attention for its astounding performance improvement of perovskite solar cells(PSCs).However,the detailed mechanisms behind the improvement remain ***,a series of imidazolium-based ionic liquids(IILs)with different cations and anions is systematically investigated to elucidate the passivation mechanism of IILs on inorganic *** is found that IILs display the following advantages:(1)They form ionic bonds with Cs^(+)and Pb^(2+)cations on the surface and at the grain boundaries of perovskite films,which could effectively heal/reduce the Cs^(+)/I−vacancies and Pb-related defects;(2)They serve as a bridge between the perovskite and the hole-transport-layer for effective charge extraction and transfer;and(3)They increase the hydrophobicity of the perovskite surface to further improve the stability of the CsPbI_(2)Br *** combination of the above effects results in suppressed non-radiative recombination loss in CsPbI_(2)Br PSCs and an impressive power conversion efficiency of 17.02%.Additionally,the CsPbI_(2)Br PSCs with IILs surface modification exhibited improved ambient and light illumination *** results provide guidance for an indepth understanding of the passivation mechanism of IILs in inorganic perovskites.

关键词： Ionic liquids Inorganic perovskite Imidazolium Passivation High efficiency

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