Results 61 to 70 of about 21,302 (261)

The Reformulation-based aGO Algorithm for Solving Nonconvex MINLP Problems – Some Improvements

Chemical Engineering Transactions, 2013
The a-reformulation (aR) technique can be used to transform any nonconvex twice-differentiable mixed-integer nonlinear programming problem to a convex relaxed form.
A. Lundell, T. Westerlund
doaj   +1 more source

Techno‐economic analysis of membrane‐based continuous capture chromatography platforms for large‐scale antibody production

Biotechnology Progress, EarlyView.
Abstract Continuous manufacturing platforms and membrane chromatography are process technologies with the potential to reduce production costs and minimize process variability in monoclonal antibody production. This study presents a simulation and optimization framework to perform techno‐economic analyses of these strategies.
Juan J. Romero, Eleanor W. Jenkins, Marc R. Birtwistle, Scott M. Husson   +3 more
wiley   +1 more source

A recurrent neural network for soft sensor development using CHO stable pools in fed‐batch process for SARS‐CoV‐2 spike protein production as a vaccine antigen

Biotechnology Progress, EarlyView.
Abstract Fed‐batch recombinant therapeutic protein (RTP) production processes utilizing Chinese Hamster Ovary (CHO) cells can take a long period of time (>10 days). Within this period, not all critical features may be measured routinely, and in fact, some are only measured once the process is terminated, complicating decision making.
Sebastian‐Juan Reyes, Robert Voyer, Yves Durocher, Olivier Henry, Phuong Lan Pham   +4 more
wiley   +1 more source

Piecewise nonlinear approximation for non-smooth functions

Results in Applied Mathematics
Piecewise affine or linear approximation has garnered significant attention as a technique for approximating piecewise-smooth functions. In this study, we propose a novel approach: piecewise non-linear approximation based on rational approximation, aimed
S. Akansha
doaj  

Influence of Ink Composition and Drying Technique on the Performance and Stability of Fe‐N‐C‐based High‐Temperature Proton Exchange Membrane Fuel Cells

ChemSusChem, Accepted Article.
Fe‐N‐C catalysts have emerged as a potentially cost‐effective alternative to Pt‐based catalysts in high‐temperature polymer electrolyte membrane fuel cell cathodes. However, the optimal design and deposition method of Pt‐free catalyst layer remains unclear.
Tanja Zierdt, Md Raziun Bin Mamtaz, Tom Eek, Julia Müller-Hülstede, Steffen Rehse, Quentin Meyer, Dana Schonvogel, Peter Wagner, Chuan Zhao, Michael Wark, K. Andreas Friedrich   +10 more
wiley   +1 more source

Joint flood control operation of Upper Yangtze River based on dynamic weight of system safety degree

E3S Web of Conferences, 2018
At flood season, reservoir can guarantee the power generation and other benefit only under the premise of ensuring its own safety and the safety of middle and lower reaches of river basin.
Li Zhenghe, Kang Ling, Zhou Liwei, Hu Jie   +3 more
doaj   +1 more source

Automated analysis of flow cytometry data with minimal training files: Research evaluation of an elastic image registration algorithm for TBNK, stem cell enumeration, and lymphoid screening tube assays

Cytometry Part B: Clinical Cytometry, EarlyView.
Abstract Automated analysis of flow cytometry data can improve objectivity and reduce analysis time but has generally required work by software and algorithm experts. Here, we investigated the performance of BD ElastiGate™ Software (hereafter ElastiGate), which allows users to automate gating by selecting gated training files, then uses elastic image ...
Allison Irvine, Suhail Tahir, Vishnu Tripathi, Farzad Oreizy, Moen Sen, Anthony Giuliano, Anna Lin, Angela Chen, Chih‐Hung Lai, Imelda Omana‐Zapata, Yang Zeng, Paresh Jain, Scott J. Bornheimer   +12 more
wiley   +1 more source

Piecewise histogram equalization based image enhancement

Tongxin xuebao, 2011
Piecewise histogram equalization（Piecewise HE） was proposed,which combines the benefits of contrast stretching and existing histogram equalization.The swallow of saturation and brightness is avoided in the enhanced image by a piecewise linear mapping ...
CHEN Wen-fei1, LIAO Bin2, XU Xue-feng3, HUANG Zhi-yong1, DONG Wen-yong1   +4 more
doaj   +2 more sources

Bifurcation of Limit Cycles by Perturbing a Piecewise Linear Hamiltonian System

Abstract and Applied Analysis, 2013
This paper concerns limit cycle bifurcations by perturbing a piecewise linear Hamiltonian system. We first obtain all phase portraits of the unperturbed system having at least one family of periodic orbits.
Yanqin Xiong, Maoan Han
doaj   +1 more source