Results 71 to 80 of about 1,107,761 (293)

Dielectrophoresis Tutorial: Inspired by Hatfield's 1924 Patent and Boltzmann's Theory and Experiments of 1874

ELECTROPHORESIS, EarlyView.
ABSTRACT The first patent to describe dielectrophoresis (DEP) as a means and process to separate particles from a mixture was granted by the US Patent Office to Henry Stafford Hatfield in 1924. The novel methods of sample preparation and designs of electrode geometry covered by the patent's disclosures and claims describe the basis for most present‐day
Ronald Pethig
wiley   +1 more source

Exploring Explicit Definite Integral Formulae with Trigonometric and Hyperbolic Functions

Axioms
Making use of integration by parts and variable replacement methods, we derive some interesting explicit definite integral formulae involving trigonometric or hyperbolic functions, whose results are expressed in terms of Catalan’s constant, Dirichlet’s ...
Yulei Chen, Dongwei Guo
doaj   +1 more source

Trigonometric time integrators for the Zakharov system [PDF]

IMA Journal of Numerical Analysis, 2016
The main challenge in the analysis of numerical schemes for the Zakharov system originates from the presence of derivatives in the nonlinearity. In this paper a new trigonometric time-integration scheme for the Zakharov system is constructed and convergence is proved. The time-step restriction is independent from a spatial discretization.
Herr, Sebastian, Schratz, Katharina
openaire   +4 more sources

Research and Experimental Verification of the Dynamic Pose Analysis Method of Advanced Hydraulic Support in a Fully Mechanized Mining Face

Energy Science &Engineering, EarlyView.
The advanced hydraulic support is modeled as a closed‐loop 10‐degree‐of‐freedom robotic arm. Based on the improved D–H parameter method, forward kinematic analysis is performed under left and right column driving conditions, and a follower model is constructed considering mechanical constraints.
Zhang Kun, Ma Kailun, Zhang Zhaoyun, Cui Bin, Xu Yajun, Wei Xuntao, Chen Yong, Zhang Zengbao, Kong Xiangjun, Chen Hongyan, Tian Dan, Yi Ran, Du Mingchao   +12 more
wiley   +1 more source

A collocation method for a hypersingular boundary integral equation via trigonometric differentiation

, 2014
Revisiting the author’s paper from 1995 on this topic, a fully discrete collocation method is proposed for the hypersingular integral equation arising from the doublelayer approach for the solution of Neumann boundary value problems in two dimensions ...
R. Kress
semanticscholar   +1 more source

Grid Integration of Single‐Phase Inverters Using a Robust PLL‐Less Control Strategy for Renewable Energy Applications

Energy Science &Engineering, EarlyView.
ABSTRACT In this paper, a PLL‐less control technique for single‐phase grid‐connected voltage source converter (VSC) system is proposed that overcomes shortcomings in traditional PLL‐based and existing PLL‐less techniques. The proposed method avoids the use of a PLL and thus significantly decreases the computational complexity of the system as well as ...
Adnan Tan
wiley   +1 more source

The Moments for Some Hyperbolic Stochastic Differential Equations [PDF]

Al-Rafidain Journal of Computer Sciences and Mathematics
This paper investigates moments for Ito's integral formula involving general form of hyperbolic stochastic functions, hyperbolic stochastic functions, which combine the deterministic structure of hyperbolic functions with stochastic elements such as ...
Noor Ramadan Mutter, Abdulghafoor J. Salim   +1 more
doaj   +1 more source

Multiple Seasonal Autoregressive Integrated Moving Average Models

Journal of Forecasting, EarlyView.
ABSTRACT Many empirical time series show periodic patterns. SARIMA models and exponential smoothing methods are classical approaches to account for seasonal dynamics. However, they allow to model just one periodic component, while several time series have multiple seasonality, with periodic components possibly tangled among them.
Francesco Lisi, Matteo Grigoletto
wiley   +1 more source

The Applications of Cardinal Trigonometric Splines in Solving Nonlinear Integral Equations

, 2014
The cardinal trigonometric splines on small compact supports are employed to solve integral equations. The unknown function is expressed as a linear combination of cardinal trigonometric splines functions.
Jin Xie, Xiaoyan Liu, Lixiang Xu
semanticscholar   +1 more source

Perspective Projection of an Ellipse and an Ellipsoid for Analytical View Factor Evaluation

Heat Transfer, EarlyView.
ABSTRACT Radiative view factors are fundamental quantities for evaluating radiative heat transfer between different surfaces. While analytical expressions of view factors have been evaluated for various types of basic geometries, including circular disks and spheres, extending these solutions to more complex geometries, such as ellipses and ellipsoids ...
Kaname Sasaki
wiley   +1 more source