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Parameter estimation for building energy models using GRcGAN

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Building Simulation 2023年第4期16卷 629-639页

作者： Hansol shin Cheol-Soo Park Department of Architecture and Architectural Engineering College of EngineeringSeoul National UniversitySeoul08826R.O.Korea Institute of Construction and Environmental Engineering Institute of Engineering ResearchCollege of EngineeringSeoul National UniversitySeoul08826R.O.Korea

Parameter estimation methods can be classified into(1)manual(trial-and-error),(2)numerical optimization(optimization,sampling),(3)Bayesian inference(Bayes filter,Bayesian calibration),and(4)machine learning(generative model).Bayesian calibration has been widely used because it can capture stochastic nature of uncertain ***,the results of Bayesian calibration could be biased by(1)the prior distribution assumed by the expert’s subjective judgment;(2)the likelihood function that cannot always describe the true likelihood;and(3)the posterior distribution approximation method,such as the Markov Chain Monte Carlo,which requires significant computation *** overcome this,a new approach using a generator-regularized continuous conditional generative adversarial network(GRcGAN)is presented in this *** target parameters of the DOE reference building model were *** was trained to estimate uncertain parameters using simulated monthly electricity and gas *** can successfully estimate five uncertain parameters based on 1,000 training data *** proposed approach presents a potential for stochastic parameter estimation.

关键词： generative adversarial networks generative model parameter estimation inverse problem model calibration parameter uncertainty

Silent microscopy to explore a brain that hears butterflies'wings

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Light(Science & Applications) 2022年第6期11卷 1026-1028页

作者： shin-Ichiro Terada Masanori Matsuzaki Department of Physiology Graduate School of MedicineThe University of TokyoTokyoJapan Brain Functional Dynamics Collaboration Laboratory RIKEN Center for Brain ScienceSaitamaJapan International Research Center for Neurointelligence(WPI-IRCN) The University of Tokyo Institutes for Advanced StudyTokyoJapan

A silent two-photon laser-scanning microscopy system,which eliminates mechanical vibrations in the audible range,has enabled the detection of auditory cortical neurons with responses at sound pressure levels as low as... 详细信息

关键词： eliminate system sound

ASL Recognition by the Layered Learning Model Using Clustered Groups

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Computer Systems Science & Engineering 2023年第4期45卷 51-68页

作者： Jungsoo shin Jaehee Jung Department of Information and Communication Engineering Myongji UniversityYonginKorea

American Sign Language(ASL)images can be used as a communication tool by determining numbers and letters using the shape of the ***,ASL can have an key role in communication for hearing-impaired persons and conveying information to other persons,because sign language is their only channel of *** ASL recognition methods primarily adopt images,sensors,and pose-based recognition techniques,and employ various gestures together with *** study briefly reviews these attempts at ASL recognition and provides an improved ASL classification model that attempts to develop a deep learning method with *** the proposed model,the collected ASL images were clustered based on similarities in shape,and clustered group classification was first performed,followed by reclassification within the *** experiments were conducted with various groups using different learning layers to improve the accuracy of individual image *** selecting the optimized group,we proposed a meta-layered learning model with the highest recognition rate using a deep learning method of image *** proposed model exhibited an improved performance compared with the general classification model.

关键词： American sign language deep learning recognition CNN ResNet clustered group

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城市代表文明吗?

建筑师 2024年第1期 4-10页

作者： [日]村松伸赵齐不详哈尔滨工业大学(深圳) 东京大学生产技术研究所

城市史学在20世纪发展迅速,其背后是将城市与文明相连的巨大推力。经历近代与世界大战,在全球格局的变动之下,我们对城市的定位,从一种特定的社会状态,提升到了城市代表人类文明的高度。然而,城市是否真能代表文明?本文将回顾欧、美、... 详细信息

城市史学在20世纪发展迅速,其背后是将城市与文明相连的巨大推力。经历近代与世界大战,在全球格局的变动之下,我们对城市的定位,从一种特定的社会状态,提升到了城市代表人类文明的高度。然而,城市是否真能代表文明?本文将回顾欧、美、中、日近现代城市史发展中观念演变的脉络,在今日重新思考这一问题。

关键词：城市城市史文明爱国主义

Effects of dispersoid preforming via multistep sintering of oxide dispersion-strengthened CoCrFeMnNi high-entropy alloy

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Journal of Materials Science & Technology 2023年第9期140卷 187-200页

作者： SeungHyeok Chung Ji Ho shin Ho Jin Ryu Department of Nuclear and Quantum Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141Republic of Korea Central Research Institute Korea Hydro and Nuclear Power Co.Ltd.(KHNP)Daejeon 34101Republic of Korea

Dispersoid formation and microstructural evolution in an oxide dispersion-strengthened CoCrFeMnNi high-entropy alloy(HEA)using a newly designed multistep sintering process are *** proposed multistep sintering consists of a dispersoid preforming heat treatment of as-milled 0.1 wt%Y_(2)O_(3)-CoCrFeMnNi high-entropy alloy powders at 800℃,followed by sintering at 800–1000℃ under uniaxial *** the conventional single-step sintered bulk,the coarsened BCC Y_(2)O_(3)dispersoids mainly form with an incoherent interface with the HEA *** contrast,finer FCC Y_(2)O_(3)dispersoids,an atypical form of Y_(2)O_(3),are formed in the matrix region after multistep *** of FCC Y_(2)O_(3)disper-soids is initiated on the favorable facet,the{111}plane of the austenitic matrix,with the formation of a semi-coherent interface with the matrix during the dispersoid preforming heat treatment and it maintains its refined size even after *** is found that dispersoid preforming prior to sintering appears promising to control the finer dispersoid formation and refined grain structure.

关键词： Oxide dispersion strengthening High-Entropy alloy Multistep sintering Dispersoid preforming Microstructure evolution Interfacial structure

Influence of the molecular structure of metal-phthalocyanine on electrocatalytic reactions

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Science China Materials 2022年第12期65卷 3324-3333页

作者： Da Sol Jeong Hyeon Suk shin Jieun Yang Department of Chemistry Ulsan National Institute of Science and Technology(UNIST)50 UNIST-gilUlsan 44919Republic of Korea Department of Chemistry and Research Institute of Basic Sciences Kyung Hee University26 Kyungheedae-roDongdaemun-guSeoul 02447Republic of Korea

The demand for new catalysts for renewable energy production has become *** an alternative to metal catalysts for electrocatalysis to produce energy sources,metal-phthalocyanine(MPc)electrocatalysts have shown *** physicochemical and electrochemical properties depend on the chemical structure of the MPc and the central metal *** reviews of MPcs focused on their electrochemical performance in specific catalytic reactions,such as oxygen reduction reaction and CO_(2)reduction ***,understanding the structure of MPcs in depth is important,since their electrochemical catalytic activity is affected by structural modifications of ***,this minireview focuses on how the molecular structure of MPcs affects electrochemical catalysis.

关键词： metal-phthalocyanine oxygen reduction reaction carbon dioxide reduction reaction hydrogen evolution reaction oxygen evolution reaction electrocatalytic activities

Investigation into charge carrier dynamics in organic light-emitting diodes

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Nano Research Energy 2024年第2期3卷 39-46页

作者： Dong-Guang Zheng Hyeon-Dong Lee Gyeong Won Lee Dong-Soo shin Jeongwon Kim Jong-In Shim Zhiqun Lin Tae-Woo Lee Dong Ha Kim Information Engineering College Hangzhou Dianzi UniversityHangzhou 311305China Department of Materials Science and Engineering Seoul National University1 Gwanak-roGwanak-guSeoul 08826Republic of Korea Department of Photonics and Nanoelectronics Hanyang University ERICA55 Hanyangdeahak-roSangnok-guAnsanGyeonggi 15588Republic of Korea Department of Chemistry and Nanoscience Ewha Womans University52Ewhayeodae-gilSeodaemun-guSeoul 03760Republic of Korea Department of Chemical and Biomolecular Engineering National University of Singapore4 Engineering Drive 4Singapore 117585Singapore School of Chemical and Biological Engineering Institute of Engineering ResearchResearch Institute of Advanced MaterialsSoft FoundrySeoul National University1 Gwanak-roGwanak-guSeoul 08826Republic of Korea Basic Sciences Research Institute(Priority Research Institute) Ewha Womans UniversitySeoul 03760Republic of Korea Nanobio∙Energy Materials Center(National Research Facilities and Equipment Center) Ewha Womans UniversitySeoul 03760Republic of Korea

Organic light-emitting diodes(OLEDs)have demonstrated remarkable advancements in both device lifetime and luminous ***,insufficient operation lifetime due to device degradation remains a major hurdle,especially for brighter *** the degradation mechanisms of OLEDs due to the degradation of functional materials and the formation of defects in device architectures continues to be a significant ***,we evaluate the degradation characteristics by scrutinizing the electrical and optical properties,as well as analyzing the charge carrier dynamics in pristine and aged states of phosphorescent OLEDs(PhOLEDs).We show that degradation mechanisms in PhOLEDs can be elucidated in terms of the ideality factors of current and luminance in pristine and aged device *** consistent shifts in distinct ideality factors across various states points out that the device degradation is attributed to the deterioration of the guest material,***-light-emitting phosphorescent ***,the incongruity in ideality factor changes between the two states indicates that the degradation results from the deterioration of non-light-emitting *** characterization experiments provide further evidence that this degradation is primarily attributed to the deterioration of CBP-host *** thorough understanding of degradation mechanisms established in this study can contribute to realizing the highly reliable PhOLEDs with a long lifetime.

关键词： organic light-emitting diodes ideality factor carrier transport processes degradation mechanism

Use of Local Region Maps on Convolutional LSTM for Single-Image HDR Reconstruction

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Computers, Materials & Continua 2022年第6期71卷 4555-4572页

作者： Seungwook Oh GyeongIk shin Hyunki Hong College of Software Chung-Ang UniversityHeukseok-ro 84Dongjak-kuSeoul06973Korea

Low dynamic range(LDR)images captured by consumer cameras have a limited luminance *** the conventional method for generating high dynamic range(HDR)images involves merging multiple-exposure LDR images of the same scene(assuming a stationary scene),we introduce a learning-based model for single-image HDR *** input LDR image is sequentially segmented into the local region maps based on the cumulative histogram of the input brightness *** the local region maps,SParam-Net estimates the parameters of an inverse tone mapping function to generate a pseudo-HDR *** process the segmented region maps as the input sequences on long short-term ***,a fast super-resolution convolutional neural network is used for HDR image *** proposed method was trained and tested on datasets including HDR-Real,LDR-HDR-pair,and *** experimental results revealed that HDR images can be generated more reliably than using contemporary end-to-end approaches.

关键词： Low dynamic range high dynamic range deep learning convolutional long short-term memory inverse tone mapping function

故意是主观违法要素吗?——主观违法要素论的谱系学考察

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法治社会 2024年第4期 115-126页

作者： [日]松泽伸何沛锡(译) 日本早稻田大学法学部中国人民大学法学院京都大学

“故意是否属于主观违法要素”是主观违法要素理论中的核心问题。对于此问题,结果无价值论内部发展出三种观点。平野龙一旨在实现刑法的功能化,其肯定未遂犯故意属于主观违法要素。中山研一强调刑法对人权的保障,否认所有的主观违法要... 详细信息

“故意是否属于主观违法要素”是主观违法要素理论中的核心问题。对于此问题,结果无价值论内部发展出三种观点。平野龙一旨在实现刑法的功能化,其肯定未遂犯故意属于主观违法要素。中山研一强调刑法对人权的保障,否认所有的主观违法要素。内田文昭坚持传统的客观违法性论,同样否定所有的主观违法要素。因为全面否定主观违法要素并不一定有利于保障人权,所以中山说受到诸多批判。因为固执地坚守客观违法性论,所以内田说也逐渐退出学术舞台。平野说则得到了进一步的改进与发展。如今,面向实务的日本刑法理论已经不再关心“故意是否属于主观违法要素”这一体系定位问题,而是更关心“如何才能准确认定法益侵害性”这一实务问题。重视问题性思考也是平野说能够发展至今的原因之一。在问题式思考的光芒下,“某某要素是否属于主观违法要素”这种讨论模式实际上已经不再具有任何意义。

关键词：主观违法要素结果无价值未遂故意体系性地位问题思考