Results 91 to 100 of about 110,736 (292)

The basic solution ellipsoid method approach for the efficiency measurement problems

Lietuvos Matematikos Rinkinys, 2016
The efficiency is a measure of a performance of a decision making units (DMUs can be a firm, a person, an organization). The data envelopment analysis (DEA) is a datadriven non-parametric approach for measuring the efficiency of a set of DMUs. The DEA is 
Eligijus Laurinavičius, Daiva Rimkuvienė, Aurelija Sakalauskaitė   +2 more
doaj   +1 more source

Aggressive shadowing of a low-dimensional model of atmospheric dynamics

, 2011
Predictions of the future state of the Earth's atmosphere suffer from the consequences of chaos: numerical weather forecast models quickly diverge from observations as uncertainty in the initial state is amplified by nonlinearity.
Alligood, Anosov, Bowen, Christopher M. Danforth, Coomes, Danforth, Danforth, Dawson, Golub, Grebogi, Hamill, Hamill, Hammel, Hammel, Hayes, Hunt, Judd, Kalnay, Leith, Li, Lorenz, Lorenz, Meyer, Orrell, Orrell, Ott, Robinson, Ross M. Lieb-Lappen, Sauer, Sauer, Simmons, Smith, Toth, Whitaker, Wilks, Wilks, Yuan   +36 more
core   +1 more source

Newton-Ellipsoid Method and its Polynomiography

, 2014
9 pages, 7 ...
Kalantari, Bahman, Lee, Eric
openaire   +2 more sources

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

Advanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath, Briahnah Streeter, Satyam Srivastava, Jemma Wood, William E. Bentley, Taylor J. Woehl, Srinivasa R. Raghavan   +6 more
wiley   +1 more source

Randomized Rounding for the Largest Simplex Problem

, 2015
The maximum volume $j$-simplex problem asks to compute the $j$-dimensional simplex of maximum volume inside the convex hull of a given set of $n$ points in $\mathbb{Q}^d$. We give a deterministic approximation algorithm for this problem which achieves an
Ghouila-Houri A., Goreinov S. A., John F., Lewis A. S., Schur I., Srinivasan A.   +5 more
core   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

A true three-dimensional wellbore positioning method based on the earth ellipsoid

Petroleum Exploration and Development, 2017
In view of the problems existing in the current wellbore positioning method, a true three-dimensional wellbore positioning method was presented, and an example for analysis was given.
Xiushan LIU
doaj   +1 more source

Decentralized Sensor Fault-Tolerant Control of DC Microgrids Using the Attracting Ellipsoid Method. [PDF]

Sensors (Basel), 2023
Soliman HM, Bayoumi EHE, El-Sheikhi FA, De Santis M.   +3 more
europepmc   +1 more source

Flow and Force Equations for a Body Revolving in a Fluid [PDF]

A general method for finding the steady flow velocity relative to a body in plane curvilinear motion, whence the pressure is found by Bernoulli's energy principle is described.
Zahm, A. F.
core   +1 more source

A 3D Biofabricated Disease Model Mimicking the Brain Extracellular Matrix Suitable to Characterize Intrinsic Neuronal Network Alterations in the Presence of a Breast Tumor Disseminated to the Brain

Advanced Functional Materials, EarlyView.
A 3D disease model is developed using customized hyaluronic‐acid‐based hydrogels supplemented with extracellular matrix (ECM) proteins resembling brain ECM properties. Neurons, astrocytes, and tumor cells are used to mimic the native brain surrounding.
Esra Türker, Mateo S. Andrade Mier, Jessica Faber, Mike Friedrich, Zan Lamberger, Jeannette Weigelt, Christian Stigloher, Nicoletta Murenu, Natascha Schaefer, Jörg Tessmar, Gregor Lang, Silvia Budday, Katrin G. Heinze, Antje Appelt‐Menzel, Pamela L. Strissel, Reiner Strick, Carmen Villmann   +16 more
wiley   +1 more source