Results 31 to 40 of about 10,992,643 (300)

Optimization of Coupling Efficiency in Butterfly Optical Communication Laser Based on Chaotic Adaptive Seeker Optimization Algorithm

Micromachines, 2023
A chaotic adaptive seeker optimization algorithm (CASOA) is proposed in this study to improve the coupling efficiency and accuracy of a butterfly optical communication laser. It primarily relies on chaotic disturbance to improve seeker search performance.
Shunshun Zhong, Cong Xu, Dongmei Sun, Lian Duan, Ji-an Duan   +4 more
doaj   +1 more source

A cleaner production method for laser transmission welding of two transparent PMMA parts using multi-core copper wire

Journal of Materials Research and Technology, 2022
Transparent plastic products are very common in food packaging, medical packaging and other fields. Absorber is key factor during laser transmission welding of two transparent parts.
Zhi Chen, Hongbing Zhou, Cheng Wu, Fenglin Han, Hongzhi Yan   +4 more
doaj   +1 more source

Diffusion behavior of Cu/Ta heterogeneous interface under high temperature and high strain: An atomistic investigation

AIP Advances, 2017
Three-dimensional (3D) integration technology using Cu interconnections has emerged as a promising solution to improve the performance of silicon microelectronic devices.
Ganglong Li, Houya Wu, Honglong Luo, Zhuo Chen, Andrew A. O. Tay, Wenhui Zhu   +5 more
doaj   +1 more source

Study on the Performance of Deep Red to Near-Infrared pc-LEDs by the Simulation Method Considering the Distribution of Phosphor Particles

Micromachines
Effectively utilizing deep red to near-infrared (DR-NIR) phosphors to achieve the optimal performance of NIR phosphor-converted white LEDs (DR-NIR pc-wLEDs) is currently a research hotspot.
Chenghang Li, Zikeng Fang, Ying Yan, Henan Li, Xiang Luo, Xuyue Wang, Ping Zhou   +6 more
doaj   +1 more source

A New Thermal Model for Predicted Discharge Craters in Micro/Nano-EDM Considering the Non-Fourier Effect

Crystals, 2022
Micro/nano-electrical discharge machining is an alternative preparation method for surface micro/nano-structures, but it is difficult to precisely control the size of the micro/nano-structures due to its unclear material removal mechanism.
Zhi Chen, Cheng Wu, Hongbing Zhou, Hongzhi Yan   +3 more
doaj   +1 more source

On the performance of TCP loss recovery mechanisms [PDF]

IEEE International Conference on Communications, 2003. ICC '03., 2004
This paper compares TCP loss recovery mechanisms that were proposed by the IETF to overcome TCP Reno lack of ability to recover efficiently from multiple losses in a single transmission window. The TCP extensions: NewReno, SACK and limited transmit, are compared under different traffic scenarios.
Michele M. de A. Espíndula Lima, Nelson L. S. da Fonseca, José Ferreira de Rezende   +2 more
openaire   +2 more sources

Mechanical performance of injection molded polypropylene : characterization and modeling

, 2013
It is shown that predictions of local mechanical properties in a product can be made from the orientation only using an anisotropic viscoplastic model.
Erp, TB Tim van, Govaert, LE Leon, Peters, GWM Gerrit, Peters, G.W.M., Govaert, L.E.; id_orcid, Leon E. Govaert, Erp, van, T.B., Tim B. van Erp, Govaert, L.E., Gerrit W. M. Peters   +9 more
core   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source

Research on Many-Objective Flexible Job Shop Intelligent Scheduling Problem Based on Improved NSGA-III

IEEE Access, 2020
With the development of intelligent manufacturing and the customized product demand of customers, manufacturing enterprises are urgently required to carry out high-efficiency, high-quality, flexibility and low-cost manufacturing to enhance the ...
Yanwei Sang, Jianping Tan, Wen Liu
doaj   +1 more source

Thermal-Fluid-Solid Coupling Simulation and Oil Groove Structure Optimization of Wet Friction Clutch for High-Speed Helicopter

Machines, 2023
Wet friction clutch is the key functional component of the high-speed helicopter variable-speed transmission system, which is used to change the power transmission path.
Wuzhong Tan, Zhi Chen, Zhizuo Li, Hongzhi Yan   +3 more
doaj   +1 more source