Results 31 to 40 of about 23,285,507 (332)

Generalized Jacobi structures [PDF]

, 1997
Jacobi brackets (a generalization of standard Poisson brackets in which Leibniz's rule is replaced by a weaker condition) are extended to brackets involving an arbitrary (even) number of functions.
Alekseevsky D, Chatterjee R, Chinea D, de Azcárraga J A, de Azcárraga J A, de Azcárraga J A, Guedira F, Henneaux M, Hietarinta J, Ibort A, J C Pérez Bueno, Kirillov A A, Kosmann-Schwarzbach Y, Lada T, Lada T, Lee H C, Lichnerowicz A, Lichnerowicz A, Nijenhuis A, Schouten J A, Takhtajan L   +20 more
core   +2 more sources

Data Structures for Statistical Computing in Python

SciPy, 2010
In this paper we are concerned with the practical issues of working with data sets common to finance, statistics, and other related fields. pandas is a new library which aims to facilitate working with these data sets and to provide a set of fundamental ...
Wes McKinney
semanticscholar   +1 more source

Perverse coherent t-structures through torsion theories [PDF]

, 2013
Bezrukavnikov (later together with Arinkin) recovered the work of Deligne defining perverse $t$-structures for the derived category of coherent sheaves on a projective variety.
A Bondal, B Keller, D Arinkin, D Stanley, E Matlis, F Oystaeyen Van, J Lambek, Jorge Vitória, JP Serre, K Goodearl, L Alonso Tarrío, L Alonso Tarrío, M Artin, M Artin, M Artin, M Kashiwara, P Gabriel, R Colpi, S Samir Mahmoud, SE Dickson, T Bridgeland   +20 more
core   +2 more sources

A program to produce both detailed and schematic plots of protein structures

, 1991
The MOLSCRIPT program produces plots of protein structures using several different kinds of representations. Schematic drawings, simple wire models, ball-and-stick models, CPK models and text labels can be mixed freely.
P. Kraulis
semanticscholar   +1 more source

Parallel Finger Search Structures [PDF]

, 2019
In this paper we present two versions of a parallel finger structure FS on p processors that supports searches, insertions and deletions, and has a finger at each end.
Gilbert, Seth, Lim, Wei Quan
core   +2 more sources

Mental Structures [PDF]

, 2020
An ongoing philosophical discussion concerns how various types of mental states fall within broad representational genera—for example, whether perceptual states are “iconic” or “sentential,” “analog” or “digital,” and so on.
Lande, Kevin
core  

Polyurethane Materials for Fire Retardancy: Synthesis, Structure, Properties, and Applications

Fire
As the demand for high-performance polymers broadens, polyurethane (PU) polymers with various chemical modifications have attracted attention. This review explores the chemical structure and functional variations of PUs.
Jiemin Zhang, Guan Heng Yeoh, Imrana I. Kabir   +2 more
doaj   +1 more source

Materials and Methods of Biosensor Interfaces With Stability

Frontiers in Materials, 2021
Biosensors can convert the concentration of biological analytes into an electrical signal or other signals for detection. They are widely used in medical diagnostics, food safety, process control, and environmental monitoring fields. In recent years, new
Min Song, Xiaogang Lin, Zhijia Peng, Shibin Xu, Lifeng Jin, Xiaodong Zheng, Haoyue Luo   +6 more
doaj   +1 more source

Computational Structuralism†

Philosophia Mathematica, 2005
The authors desire to characterize the natural numbers by their structure, as opposed to designating a particular choice of objects like \(\emptyset\), \(\{\emptyset\}\), etc. But at the same time, they wish to rule out nonstandard models -- and not to make their description circular.
Halbach, V, Horsten, LFM
openaire   +4 more sources

Optimization of damage repair with piezoelectric actuators using the Taguchi method

Fracture and Structural Integrity
Over the last two decades, piezoelectric actuators have emerged as a promising solution for structural repair. In this work, initially the stress intensity factor (SIF) estimation using the finite element (FE) approach at crack tips in aluminium 2024-T3 ...
Abdul Aabid, Meftah Hrairi, Jaffar Syed Mohamed Ali   +2 more
doaj   +1 more source