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AdS/Deep-Learning made easy:simple examples

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Chinese Physics C 2021年第7期45卷 132-141页

作者： Mugeon Song Maverick S.h.oh Yongjun Ahn Keun-Young Kima Gwangju Institute of Science and Technology(GIST) Department of Physics and Photon ScienceGwangjuSouth Korea University of California–Merced Department of PhysicsMercedCAUSA

Deep learning has been widely and actively used in various research ***,in gauge/gravity duality,a new deep learning technique called AdS/DL(Deep Learning)has been *** goal of this paper is to explain the essence of AdS/DL in the simplest possible setups,without resorting to knowledge of gauge/gravity *** perspective will be useful for various physics problems:from the emergent spacetime as a neural network to classical mechanics *** prototypical examples,we choose simple classical mechanics *** method is slightly different from standard deep learning techniques in the sense that we not only have the right final answers but also obtain physical understanding of learning parameters.

关键词： gauge/gravity duality holographic principle machine learning

White Noise in Quantum Random Walk Search Algorithm

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Chinese Physics Letters 2006年第4期23卷 779-782页

作者：马雷杜江峰李筠李卉 KWEK L.C. oh C.h. Department of Physics Faculty of Science National University of Singapore 10 Lower Kent Ridge Singapore 119260 Department of Physics East China Normal University Shanghai 200062 hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics University of Science and Technology of China Hefei 230026 National Institute of Education Nanyang Technological University 1 Nanyang Walk Singapore 639798

The quantum random walk is a possible approach to construct new quantum search algorithms. It has been shown by Shenvi et al. [Phys. Rev. A 67（2003）52307] that a kind of algorithm can perform an oracle search on a database of N items with O（√N） calling to the oracle, yielding a speedup similar to other quantum search algorithms. We study the effect of white or Gaussian noise on this algorithm. The algorithm loses efficiency when noise is added. We also show that noise on the target state plays a more important role than that on other states. Finally we compare the effects of similar types of noise in the quantum random walk search algorithm and Grover＇s search algorithm.

关键词： White Noise Walk Search Algorithm

Partial Collapsing Degeneration of Floer Trajectories and Adiabatic Gluing

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Acta Mathematica Sinica,English Series 2024年第1期40卷 161-249页

作者： Yong-Geun oh Ke ZhU Center for Geometry and Physics Institute for Basic Science(IBS)79 Jigok-ro 127beon-gilNam-guPohang-siGyeongsangbuk-doKorea 37673&POSTECHGyeongsangbuk doKorea Department of Mathematics and Statistics Minnesota State UniversityMankatoMN 56001USA

In the present paper,we study partial collapsing degeneration of hamiltonian-perturbed Floer trajectories for an adiabatic ε-family and its reversal adiabatic gluing,as the prototype of the partial collapsing degeneration of 2-dimensional(perturbed)J-holomorphic maps to 1-dimensional gradient *** consider the case when the Floer equations are S^(1)-invariant on parts of their domains whose adiabatic limit has positive length as ε→0,which we call thimble-flow-thimble *** main gluing theorem we prove also applies to the case with Lagrangian boundaries such as in the problem of recovering holomorphic disks out of pearly *** particular,our gluing theorem gives rise to a new direct proof of the chain isomorphism property between the Morse-Bott version of Lagrangian intersection Floer complex of L by Fukaya-oh-ohta-Ono and the pearly complex of L Lalonde and *** also provides another proof of the present authors’earlier proof of the isomorphism property of the PSS map without involving the target rescaling and the scale-dependent gluing.

关键词： Floer trajectory equation partial collapsing degeneration thimble-flow-thimble moduli space adiabatic gluing exponential decay estimates three-interval method

Stoichiometric Ti3C2Tx Coating for Inhibiting Dendrite Growth in Anode-Free Lithium Metal Batteries

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Energy & Environmental Materials 2024年第4期7卷 153-162页

作者： Xiangrong Zeng Manmatha Mahato Woong oh hyunjoon Yoo Van hiep Nguyen Saewoong oh Geetha Valurouthu Soon-Ki Jeong Chi Won Ahn Yury Gogotsi Il-Kwon oh National Creative Research Initiative for Functionally Antagonistic Nano-Engineering Department of Mechanical Engineering Korea Advanced Institute of Science and Technology (KAIST) Department of Materials Science & Engineering and A. J. Drexel Nanomaterials Institute Drexel University Department of Energy Engineering Soonchunhyang University National Nanofab Center (NNFC) Korea Advanced Institute of Science and Technology (KAIST)

Lithium metal batteries (LMBs) and anode-free LMBs (AFLMBs) present a solution to the need for batteries with a significantly superior theoretical energy ***,their adoption is hindered by low Coulombic efficiency (CE) and rapid capacity fading,primarily due to the formation of unstable solid electrolyte interphase (SEI) layer and Li dendrite growth as a result of uneven Li plating.

关键词： anode-free lithium metal batteries stoichiometric MXene solid electrolyte interphase surface terminations

Extraction of intersecting palm-vein and palmprint features for cancellable identity verification

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CAAI Transactions on Intelligence Technology 2024年第1期9卷 69-86页

作者： Jaekwon Lee Beom-Seok oh Kar-Ann Toh School of Electrical and Electronic Engineering Yonsei UniversitySeoulRepublic of Korea Department of Applied Artificial Intelligence Seoul National University of Science and TechnologySeoulRepublic of Korea

A novel method based on the cross-modality intersecting features of the palm-vein and the palmprint is proposed for identity *** on the unique geometrical relationship between the two biometric modalities,the cross-modality intersecting points provides a stable set of features for identity *** facilitate flexibility in template changes,a template transformation is *** maintaining non-invertibility,the template transformation allows transformation sizes beyond that offered by the con-ventional *** experiments using three public palm databases are conducted to verify the effectiveness the proposed system for identity recognition.

关键词： biometrics hand vein recognition hand-based biometrics multi-biometrics palmprint recognition

Influence of gut microbiome composition on effect variations of anti-cholesterol treatment among individual mice

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Food Science and human Wellness 2024年第5期13卷 3054-3065页

作者： hyemin oh Yohan Yoon Risk Analysis Research Center Sookmyung Women’s UniversitySeoul 04310Korea Department of Food and Nutrition Sookmyung Women’s UniversitySeoul 04310Korea

This study investigated if the variation in the effect of anti-cholesterol(AC)treatment on individual mice are related to gut microbiome *** bile salt hydrolase(BSh)activity of 23 commercial fermented milk products was examined to select a fermented milk product for AC *** were fed to different diets for 6 weeks:high-fat(60%of total calories from fat;D1),high-dietary fibre(20%cellulose;D2),and low-fat(17.2%of total calories from fat;D3)diets to change their gut ***,faecal microbiome was transplanted(FMT)into mice treated with high cholesterol diet contained 2%cholesterol,followed by AC or non-AC(sterile tap water,STW)*** groups with normal(NC)and highcholesterol diets(PC)were prepared for both AC and STW *** experimental groups were subjected to serum and liver cholesterol,cholesterol metabolism-related(CMR)gene expression,and intestinal microbiome analyses.D3-FMT mice showed the most significant enhancements in cholesterol ratio and decreased hepatic cholesterol levels with AC ***,upregulation of the Cyp7a1 gene expression was observed in this ***,the intestinal microbiome analysis indicated higher abundances of BSh-producing Eubacterium,Bifidobacterium,and Parabacteroides in the D3-FMT+AC group compare to others,potentially contributing to increased bile acid synthesis.

关键词： ut microbiome Anti-cholesterol Bile salt hydrolase(BSh)activity Bile acid synthesis Faecal microbiota transplantation

N, P co-doped 3D porous carbon with self-assembled morphological control via template-free method for potassiumion battery anodes

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Rare Metals 2024年第9期43卷 4243-4252页

作者： Jeehoon Yu Dae Kyom Kim hong Geun oh Seung-Keun Park Youngjae Yoo Department of Advanced Materials Engineering Chung-Ang University

The larger ionic radius of potassium ions than that of lithium ions significantly limits the accomplishment of rapid diffusion kinetics in graphite electrodes for potassium-ion batteries （PIBs）,resulting in comparatively poor rate performance and cycle ***,we report a high-rate performance and cycling stability amorphous carbon electrode achieved through nitrogen and phosphorous *** as-prepared N,P co-doped carbon electrodes have distinct 3D structures with large surface areas,hierarchical pore architectures,and increased interlayer spaces resulting from the direct pyrolysis of supramolecular self-assembled aggregates without *** obtained electrode N3P1 exhibits a reversible specific capacity of 258 m Ah·g-1at a current density of 0.1A·g-1and a good long-term cycle performance (96.1%capacity retention after 800 cycles at 0.5 A·g-1).Kinetic investigations show that the N3P1 electrode with the welldeveloped porous structure and large number of surface defects exhibits capacitive-driven behavior at all scan rates,which may be attributed by N and P ***-situ transmission electron microscopy analyses in the fully discharged and charged states demonstrate structural stability and reversibility owing to the expanded interlayer *** suggested synthesis approach is simple and effective for producing heteroatom-doped carbon materials for PIBs and other advanced electrochemical energy storage materials.

关键词： 3D porous structures Amorphous carbons Nitrogen and phosphorous co-doping Potassium-ion batteries

Design of new columns for capillary electrochromatography using a chiral stationary phases with polysaccharide derivatives

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Design of new columns for capillary electrochromatography us...

Synthesis of the CSP based on cellulose with crown ether group for capillary chromatography

30th International Symposium on Capillary Chromatography、4th GC×GC Symposium、16th National Symposium and Exhibition on Chromatography,i.e. 1st Dalian International Symposium and Exhibition on Chromatography

作者： oh,h.S. Kim,h.Y. Bae,I.A. Choi,S.h. Lee,K.P. Department of Chemistry BK 21 NanoBiosensor Research Team Hannam UniversityDaejeon 305-811Republic of Korea Department of Chemistry BK 21 NanoBiosensor Research Team Hannam UniversityDaejeon 305-811Republic of Korea Department of Chemistry BK 21 NanoBiosensor Research Team Hannam UniversityDaejeon 305-811Republic of Korea Department of Chemistry BK 21 NanoBiosensor Research Team Hannam UniversityDaejeon 305-811Republic of Korea Department of Chemistry Graduate School Kyungpook National University Daegu 702-701Republic of Korea

＜正＞Capillary electrochromatography（CEC）is hybrid separation technique（combined advantages of both capillary electrophoresis and hPLC）.It is an important technique in the pharmaceutical,agrichemical,and biomedical *** preparation of new chiral stationary phases and their chromatographic behaviors are important methodology in our research ***-based columns are popular for the direct separation of many *** theses columns have good efficiency and stability under general chromatographic *** materials are very useful for analytical and preparative scale enantioseparations.

关键词： hPLC Chiral stationary phases Enantioseparation Phenylcarbamates Polysaccharides Silica gel

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Synthesis of the CSP based on cellulose with crown ether gro...