Results 61 to 70 of about 359,536 (206)
MathematicsThe zero-inflated two-parameter Rayleigh (ZITR) distribution provides a flexible framework for modeling data with excess zeros and positive observations following a two-parameter Rayleigh distribution.
Sasipong Kijsason +2 more
doaj +1 more source
Multiple periodic solutions for the second-order nonlinear difference equations
Advances in Difference Equations, 2018 Multiple periodic solutions for the equation Δ(pn(Δxn−1)δ)+qnxnδ=∇F(n,xn),n∈Z, $$ \Delta \bigl(p_{n}(\Delta x_{n - 1})^{\delta } \bigr) + q_{n}x_{n}^{\delta } = \nabla F ( n,x_{n} ) , \quad n \in \mathbb{Z}, $$ are obtained via variational method and ...
Sheng Ma, Zhihua Hu, Qin Jiang
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An Adaptive $\delta f$ Monte Carlo Method [PDF]
, 2010 A new adaptive delta f Monte Carlo method is presented with an application to radio frequency heating and transport in fusion plasmas. The method is suitable when an initial zeroth-order approximation of the distribution function is known. The difference
Torbjörn Hellsten +3 more
core +1 more source
A Systematic Design Method for Direct Delta-Sigma Receivers [PDF]
IEEE Transactions on Circuits and Systems I: Regular Papers, 2018 Next generation receivers, such as the direct $\Delta \Sigma $ receiver (DDSR), shift the boundary between analog and digital closer to the antenna by merging the functionalities of different sub-blocks. In the DDSR, the analog components are used to their maximum potential as each stage participates in amplification, blocker filtering, anti ...
Ul Haq, Faizan +7 more
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PRESSURE PREDICTION AND UNDERBALANCED DRILLING IN THE DEEPWATER NIGER DELTA [PDF]
, 2012 The mechanisms that cause overpressure can be broadly classified into two categories: loading and unloading. This study looks at eight wells from the deepwater Niger Delta; the wells were evaluated with three aims in mind. The first aim was to determine
GOODWYNE, OLAR,KAMAL
core
A novel delta current method for transport stoichiometry estimation [PDF]
BMC Biophysics, 2014 The ion transport stoichiometry (q) of electrogenic transporters is an important determinant of their function. q can be determined by the reversal potential (Erev) if the transporter under study is the only electrogenic transport mechanism or a specific inhibitor is available. An alternative approach is to calculate delta reversal potential (ΔErev) by
Shao, Xuesi M, Kao, Liyo, Kurtz, Ira
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Method of detecting cancer using delta-catenin [PDF]
, 2008 The present invention provides a method for detecting or screening for the presence of cancer in a subject. The method comprises obtaining, providing or collecting a tissue or fluid sample (such as a urine sample) from said subject, and then determining ...
Lu, Qun, Chen, Yan-Hua
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Convergence of the EM method for NSDEs with time-dependent delay in the G-framework
Systems Science & Control Engineering, 2019 Consider a neutral stochastic differential equation (NSDE) with time-dependent delay $\delta (t) $ ( $0 \le \delta (t) \le \tau $) in the G-framework $$\begin{align*} {\rm d}(x(t) - D ( x(t - \delta (t)))) & = f(x(t), x(t-\delta(t)))\,{\rm d}t \\ & \quad
Shounian Deng, Yong Liang, Chunhui Mei
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Hardware-Efficient Delta Sigma-Based Digital Signal Processing Circuits for the Internet-of-Things
Journal of Low Power Electronics and Applications, 2015 This paper presents hardware-efficient Delta Sigma linear processing circuits for the next generation low-power VLSI devices in the Internet-of-things (IoT).We first propose the P-N (positive-negative) pair method to manipulate both the analog value and ...
Yifei Liu, Paul M. Furth, Wei Tang
doaj +1 more source
Environmental impact assessment of the pangasius sector in the Mekong Delta [PDF]
, 2009 In the past seven years the export of white pangasius fillets grew fast. The culture method shifted to intensive production of striped catfish (Ca Tra) in deep ponds because this is more efficient than the pen and cage culture of Ca Basa.
Anh, P.T. +13 more
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