Results 21 to 30 of about 3,039,723 (167)

Structural Design of Aerostatic Bearing Based on Multi-Objective Particle Swarm Optimization Algorithm

Applied Sciences, 2023
Aerostatic bearings are considered crucial components that can improve the measurement accuracy of ground simulation tests of space equipment. A structural optimization design method is proposed to enhance the static performance of aerostatic bearings. A
Biqing Ye, Guixin Yu, Yidong Zhang, Gang Li   +3 more
doaj   +1 more source

Design and Analysis of Gallium Nitride-Based p-i-n Diode Structure for Betavoltaic Cell with Enhanced Output Power Density

Micromachines, 2020
In this work, Gallium Nitride (GaN)-based p-i-n diodes were designed using a computer aided design (TCAD) simulator for realizing a betavoltaic (BV) cell with a high output power density (Pout).
Young Jun Yoon, Jae Sang Lee, In Man Kang, Jung Hee Lee, Dong Seok Kim   +4 more
doaj   +1 more source

Boundary condition coupling methods and its application to BOP-integrated transient simulation of SMART

Nuclear Engineering and Technology, 2023
The load-following operation of small modular reactors (SMRs) requires accurate prediction of transient behaviors that can occur in the balance of plants (BOP) and the nuclear steam supply system (NSSS).
Jongin Yang, Hong Hyun Son, Yong Jae Lee, Doyoung Shin, Taejin Kim, Seong Soo Choi   +5 more
doaj   +1 more source

Iterative Learning Control for AGV Drive Motor Based on Linear Extended State Observer

Machines, 2021
In order to solve the problems of repetitive and non-repetitive interference in the workflow of Automated Guided Vehicle (AGV), Iterative Learning Control (ILC) combined with linear extended state observer (LESO) is utilized to improve the control ...
Wei Jiang, Gang Zhu, Ying Zheng
doaj   +1 more source

Accidentally on Purpose

, 2023
Abstract Usually to signal a collection of artefacts that ended up together in a format that was not intended to be permanent, the term ‘Accidental Archive’ is generally defined only in the broadest of brushstrokes and rarely problematized.
Akkerman, N., Langman, P.
openaire   +2 more sources

Characterization and benchmarking of complete 4D transverse phase space for high-intensity ion beams using novel virtual pepper-pot technique

Scientific Reports
Precise and fast measurement of transverse beam properties is essential for understanding and optimizing particle beams. In this study, a multi-diagnostic approach is employed for high-dimensional transverse phase space reconstruction of high-intensity ...
Emre Cosgun, SeokHo Moon, DongHwan Kim, SeungHyun Lee, HanSung Kim, HyeokJung Kwon, Moses Chung   +6 more
doaj   +1 more source

Impact Analysis of Welding Sequence to Reduce Weld Deformation in Aluminum Hulls

Journal of Marine Science and Engineering
Aluminum hulls, which are preferred in the marine industry due to their durability, corrosion resistance, and lightweight properties, face serious challenges due to thermal deformation during welding.
Chungwoo Lee, Suseong Woo, Jisun Kim
doaj   +1 more source

Material Removal Characteristic of Laser Cladding Cobalt-Based Alloy in the Photochemical Process

Metals, 2019
Cobalt-based alloy materials, widely used for laser cladding, are difficult to process. To address this problem, and based on the analysis of the physicochemical properties of cobalt and its compounds, a method for removing cobalt-based alloy materials ...
Xi Zeng, Zhuo Li, Fengfei Xi, Shiming Ji, Lei Qiu, Meng Shi, Qianqian Zheng, Wenbin Qiu   +7 more
doaj   +1 more source

Synthesis mechanism from graphene quantum dots to carbon nanotubes by ion-sputtering assisted chemical vapor deposition

Discover Nano
We present the first work of the synthesis mechanism from graphene quantum dots (GQDs) to carbon nanotubes (CNTs) by an ion-sputtering assisted chemical vapor deposition.
Jun Mok Ha, Seoung Ho Lee, Daehyeon Park, Young Jun Yoon, In Mok Yang, Junhyeok Seo, Yong Seok Hwang, Chan Young Lee, Jae Kwon Suk, Jun Kue Park, Sunmog Yeo   +10 more
doaj   +1 more source

Incidence and clinical outcomes of ventilator-associated events in Russian tertiary care settings: an analysis of electronic health records

BMC Research Notes
Objective This research aimed to evaluate the epidemiological and clinical characteristics of ventilator-associated events (VAE) using the CDC framework in a tertiary hospital in Moscow, Russia. Results In this cohort study, we analyzed electronic health
Sergei Vladimirov, Ilia Klimenko, Nikita Matiushkov, Denis Protsenko, Dmitry Sergeev   +4 more
doaj   +1 more source