Results 91 to 100 of about 747,562 (306)
Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules
Advanced Functional Materials, EarlyView.A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang +7 more
wiley +1 more source
Delta-neutral volatility trading with intra-day prices: an application to options on the DAX [PDF]
This paper evaluates the profitability of applying four different volatility forecasting models to the trading of straddles on the German stock market index DAX.
Kaehler, Jürgen, Schmitt, Christian
core
Comparison of intraoral and extraoral scanners on the accuracy of digital model articulation [PDF]
, 2017 Introduction: Orthodontists increasingly rely on digital models in clinical practice. The ability of modern scanners to articulate digital models must be scientifically evaluated.
Porter, Jason L
core +1 more source
Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions
Advanced Functional Materials, EarlyView.This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian +7 more
wiley +1 more source
Long Agricultural Futures Prices: ARCH, Long Memory, or Chaos Processes? [PDF]
Price series that are 21.5 years long for six agricultural futures markets, corn, soybeans, wheat, hogs, coffee and sugar, possess characteristics consistent with nonlinear dynamics.
Anning Wei, Raymond M. Leuthold
core
Adaptive density estimation for general ARCH models [PDF]
, 2006 We consider a model $Y\_t=\sigma\_t\eta\_t$ in which $(\sigma\_t)$ is not independent of the noise process $(\eta\_t)$, but $\sigma\_t$ is independent of $\eta\_t$ for each $t$.
Comte, Fabienne +2 more
core +2 more sources
, 1998 We compare our results on empirical analysis of financial data with simulations of two stochastic models of the dynamics of stock market prices. The two models are (i) the truncated L\'evy flight recently introduced by us and (ii) the ARCH(1) and GARCH(1,
Mantegna, Rosario N., Stanley, H. Eugene
core +1 more source
Advanced Functional Materials, EarlyView.This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker +5 more
wiley +1 more source
Photoelastic analysis of stress generated by Connecticut Intrusion Arch (CIA)
Dental Press Journal of OrthodonticsObjective: The present in vitro study evaluated, by means of the photoelastic technique, the effects generated by the Connecticut Intrusion Arch (CIA), with a 90o bend on the distal surface of molar tubes and using the 4 x 2 appliance on the anterior ...
Alessandro Schwertner +3 more
doaj +1 more source
Padjadjaran Journal of Dentistry, 2017 Introduction: Children with bad habit and the persistence of deciduous teeth can caused malposition of anterior permanent teeth or Angle Class I Type 1 malocclusion. One of the curative treatment is removable orthodontic appliance.
Novita Asti Nada +2 more
doaj +1 more source