Results 1 to 10 of about 19,320,239 (252)

Synthesis of ZnO Hierarchical Structures and Their Gas Sensing Properties

open access: yesNanomaterials, 2019
Firecracker-like ZnO hierarchical structures (ZnO HS1) were synthesized by combining electrospinning with hydrothermal methods. Flower-like ZnO hierarchical structures (ZnO HS2) were prepared by a hydrothermal method using ultrasound-treated ZnO ...
Chao Fan   +6 more
doaj   +2 more sources

Exploring Hierarchical Structures for Recommender Systems

open access: yesIEEE Transactions on Knowledge and Data Engineering, 2018
Items in real-world recommender systems exhibit certain hierarchical structures. Similarly, user preferences also present hierarchical structures.
Jiliang Tang, Huan Liu, Suhang Wang
exaly   +2 more sources

Learning Latent and Hierarchical Structures in Cognitive Diagnosis Models [PDF]

open access: yesPsychometrika, 2021
Cognitive Diagnosis Models (CDMs) are a special family of discrete latent variable models that are widely used in educational and psychological measurement.
Chenchen Ma, Jing Ouyang, Gong-Jun Xu
semanticscholar   +1 more source

Phase Composition of Austenitic Stainless Steels in Additive Manufacturing: A Review

open access: yesMetals, 2021
Additive manufacturing (AM) is among the novel industrial technologies for fast prototyping of complex parts made from different constructional and functional materials.
Sergey Astafurov, Elena Astafurova
doaj   +1 more source

Strong and tough fibrous hydrogels reinforced by multiscale hierarchical structures with multimechanisms

open access: yesScience Advances, 2023
Tough natural materials such as nacre, bone, and silk exhibit multiscale hierarchical structures where distinct toughening mechanisms occur at each level of the hierarchy, ranging from molecular uncoiling to microscale fibrillar sliding to macroscale ...
Xiao Guo   +4 more
semanticscholar   +1 more source

Three‐Tier Hierarchical Structures for Extreme Pool Boiling Heat Transfer Performance

open access: yesAdvances in Materials, 2022
Boiling is an effective energy‐transfer process with substantial utility in energy applications. Boiling performance is described mainly by the heat‐transfer coefficient (HTC) and critical heat flux (CHF).
Youngsup Song   +5 more
semanticscholar   +1 more source

Mechanisms of electrical conductivity, quantum capacity and negative capacitance effects in InSe nanohybrid [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
In this work, we present findings on the syntheses and study of properties of InSe nanohybrid. The introduction of guest component in GaSe matrix leads to an increase in inhomogeneities, which is clearly confirmed by the strengthening of the low ...
Fedir Ivashchyshyn   +8 more
doaj   +1 more source

Controllable and Scalable Fabrication of Superhydrophobic Hierarchical Structures for Water Energy Harvesting

open access: yesElectronics, 2022
We report a controllable and scalable fabrication approach for the superhydrophobic hierarchical structures and demonstrate the excellent ability to harvest water energy when applied to water-solid contact triboelectric nanogenerator (TENG).
Mei-Ling Guo   +9 more
semanticscholar   +1 more source

Hierarchical data structures for flowchart

open access: yesScientific Reports, 2023
Flowcharts have broad applications in the fields of software development, engineering design, and scientific experimentation. Current flowchart data structure is mainly based on the adjacency list, cross-linked list, and adjacency matrix of the graph ...
Peng Zhang, Wenzhang Dou, Huaping Liu
doaj   +1 more source

Bioinspired Hierarchical Structures for Contact‐Sensible Adhesives

open access: yesAdvanced Functional Materials, 2021
Bioinspired structural adhesives that are capable of bonding two objects together have recently found widespread applications in industrial fields, because of their promising reusability and environmental friendliness. However, such adhesives are usually
Hong-Ming Hu   +10 more
semanticscholar   +1 more source

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