Results 61 to 70 of about 5,532 (307)

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

Advanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel, Bastian Jülich, Anna Rosa Ziefuss, Florian Eibl, Stephan Barcikowski   +4 more
wiley   +1 more source

Asymptotically optimal amplifiers for the Moran process [PDF]

Theoretical Computer Science, 2019
We study the Moran process as adapted by Lieberman, Hauert and Nowak. This is a model of an evolving population on a graph or digraph where certain individuals, called "mutants" have fitness r and other individuals, called non-mutants have fitness 1. We focus on the situation where the mutation is advantageous, in the sense that r>1.
Leslie Ann Goldberg, John Lapinskas, Johannes Lengler, Florian Meier 0002, Konstantinos Panagiotou, Pascal Pfister   +5 more
openaire   +4 more sources

Optimality gaps in asymptotic dimensioning of many-server systems

, 2016
The Quality-and-Efficiency-Driven (QED) regime provides a basis for solving asymptotic dimensioning problems that trade off revenue, costs and service quality. We derive bounds for the optimality gaps that capture the differences between the true optimum
Borst, S.C., Borst, S.C.; id_orcid, Leeuwaarden, JSH Johan van, Sanders, J., Sanders, J Jaron, Janssen, A.J.E.M., van Leeuwaarden, J.S.H., Janssen, AJEM Guido, Borst, SC Sem = Simon, Sanders, J.; id_orcid   +9 more
core   +1 more source

Ultrafast (1‐5 sec) Lamination of Perovskite Solar Cells With Self‐Encapsulation Using Rapid Joule Heating

Advanced Materials Technologies, EarlyView.
Halide perovskite solar cells are fabricated with self‐encapsulation by lamination between two glass substrates using rapid Joule heating, yielding a 99% reduction in lamination time compared to previous studies. An 18% efficient cell is laminated in 5 s, demonstrating the potential for scalable manufacturing. ABSTRACT Perovskite solar cells (PSCs) are
Oluka Okia, Md Aslam Uddin, Tianhan Gao, Zhihang Zhang, Vaishnav Madhava Das, Clare L. Lanaghan, Alexandra C. Hurd, Wei Lu, David P. Fenning, Neil P. Dasgupta   +9 more
wiley   +1 more source

Understanding Ionic Flow in Nanofluidic Blind‐Hole Anodic Aluminum Oxide (AAO) Membranes for Osmotic Energy Generation

Advanced Materials Technologies, EarlyView.
Anodic aluminum oxide (AAO) membranes have traditionally served as structural supports in osmotic energy systems. Here, blind‐hole AAO membranes are demonstrated as active ion‐selective platforms with tunable nanopore structures. By balancing membrane resistance, ion selectivity, and flux, enhanced performance is achieved, delivering a maximum power ...
Khanh Nhien Vu, Charles Lord, Juan Wang, Andrew D. Abell, Woo Lee, Abel Santos, Cheryl Suwen Law   +6 more
wiley   +1 more source

Optimal Research and Numerical Simulation for Scheduling No-Wait Flow Shop in Steel Production

Journal of Applied Mathematics, 2013
This paper considers the m-machine flow shop scheduling problem with the no-wait constraint to minimize total completion time which is the typical model in steel production.
Huawei Yuan, Yuanwei Jing, Jinping Huang, Tao Ren   +3 more
doaj   +1 more source

Index policies for the admission control and routing of impatient customers to heterogeneous service stations [PDF]

, 2009
We propose a general Markovian model for the optimal control of admissions and subsequent routing of customers for service provided by a collection of heterogeneous stations. Queue-length information is available to inform all decisions.
Ouenniche, J, Kirkbride, C, Glazebrook, K D, Glazebrook, K., Kirkbride, C., Ouenniche, J.   +5 more
core   +1 more source

Backpropagation Through Soft Body: Investigating Information Processing in Brain–Body Coupling Systems

Advanced Robotics Research, EarlyView.
This study explores how information processing is distributed between brains and bodies through a codesign approach. Using the “backpropagation through soft body” framework, brain–body coupling agents are developed and analyzed across several tasks in which output is generated through the agents’ physical dynamics.
Hiroki Tomioka, Katsuma Inoue, Yasuo Kuniyoshi, Kohei Nakajima   +3 more
wiley   +1 more source

Estimating a Finite Population Mean Using Transformed Data in Presence of Random Nonresponse

International Journal of Mathematics and Mathematical Sciences, 2020
Developing finite population estimators of parameters such as mean, variance, and asymptotic mean squared error has been one of the core objectives of sample survey theory and practice.
Nelson Kiprono Bii, Christopher Ouma Onyango, John Odhiambo   +2 more
doaj   +1 more source

Asymptotic optimal HEAPSORT algorithm

Theoretical Computer Science, 1994
AbstractHeapsort algorithm HEAPSORT runs in a higher efficiency way. It has been improved to reduce the constant factor of the complexity. An asymptotic optimal heapsort algorithm is given in this paper. When the efficiency becomes the lowest, the constant factor of its complexity will not be more than 43.
Gu Xunrang, Zhu Yuzhang
openaire   +1 more source