Results 101 to 110 of about 254,826 (323)

A Bilayer Micro/Nanostructured Water‐Based Paint With Effective Thermal Insulating and Reflective Properties

open access: yesAdvanced Materials Interfaces, EarlyView.
The design, optimization and characterization of a new bilayer painting system is presented. The underlying layer is engineered to provide exceptional thermal insulation through the synergistic effect of hollow perlite microspheres and micrometer‐sized cellulose particles. The external painting layer is designed to induce the formation of a homogeneous
Antonino Caputo   +8 more
wiley   +1 more source

Affine Macroeconomic Models of the Term Structure of Interest Rates: The US Treasury Market 1961-99 [PDF]

open access: yes
This paper develops a macroeconomic model of the yield curve and uses this to explain the behaviour of the US Treasury market. Unlike previous macro-finance models which assume a homoscedastic error process, I develop a general affine model which allows ...
Peter Spencer
core  

Asymptotic Implied Volatility at the Second Order with Application to the SABR Model

open access: yes, 2016
We provide a general method to compute a Taylor expansion in time of implied volatility for stochastic volatility models, using a heat kernel expansion.
BS DeWitt   +6 more
core   +1 more source

Target volatility option pricing in lognormal fractional SABR model [PDF]

open access: yesarXiv, 2018
We examine in this article the pricing of target volatility options in the lognormal fractional SABR model. A decomposition formula by Ito's calculus yields a theoretical replicating strategy for the target volatility option, assuming the accessibilities of all variance swaps and swaptions.
arxiv  

Subsurface State Bilayer in Tetragonal Ferroelectric BaTiO3

open access: yesAdvanced Materials Interfaces, EarlyView.
The subsurface Ba2+disorder, reveals the pairs of O vacancies (VO++$V_O^{ + + }$ s) and small polarons (SPe‐SPe−$SP_e^ - $ s) (Figure a–b), with the charge balance, as the following: Ti3++[VO+++SPe−]pair↔Ti4+${{T}_i}^{3 + } + {{[V_O^{ + + } + SP_e^ - ]}_{pair}} \leftrightarrow T_i^{4 + }$ which is consistent with observed low‐energy electron ...
Junhao Chen   +12 more
wiley   +1 more source

Evaluasi Pembiayaan Perumahan Akad Murabahah Versus Kredit Konvensional Berdasarkan Volatilitas Harga

open access: yesJournal of Accounting and Investment, 2016
The purpose of this study was to determine whether the pattern of housing financing murabaha or conventional mortgages can overcome the volatility of house prices after the maturity of the financing.
Sahlan Hasbi, Kuncoro Hadi
doaj  

A Horserace of Volatility Models for Cryptocurrency: Evidence from Bitcoin Spot and Option Markets [PDF]

open access: yesarXiv, 2020
We test various volatility models using the Bitcoin spot price series. Our models include HIST, EMA ARCH, GARCH, and EGARCH, models. Both of our in-sample-fit and out-of-sample-forecast results suggest that GARCH and EGARCH models perform much better than other models.
arxiv  

Stabilizing TiO2/CsPbI2Br Perovskite Buried Interface for All‐Inorganic Perovskite toward Highly Efficient Photodetectors

open access: yesAdvanced Materials Interfaces, EarlyView.
Polyvinyl pyrrolidone passivation enhances TiO2/CsPbI2Br interfaces, suppressing recombination and improving photodetector performance with faster response, higher photoresponsivity, and superior detectivity. Abstract Inorganic perovskites hold immense promise for optoelectronic applications, but their performance is often hindered by defects and trap ...
Shruti Shah   +12 more
wiley   +1 more source

UK macroeconomic volatility and the term structure of interest rates. [PDF]

open access: yes
This paper uses a macro-finance model to examine the ability of the gilt market to predict fluctuations in macroeconomic volatility. The econometric model is a development of the standard ‘square root’ volatility model, but unlike the conventional term ...
Peter Spencer
core  

Accessible Soft Electronics with Silver‐Gelatin Conductive Hydrogel Composite

open access: yesAdvanced Materials Technologies, EarlyView.
Soft, stretchable and conductive gelatin based hydrogel is fabricated from inexpensive naturally‐derived materials and silver flakes using consumer grade equipment with applications in soft electronic circuits and electromyography electrodes. Abstract Electrically conductive hydrogels are a promising class of materials for soft electronics and robotics
Kiyn Chin   +5 more
wiley   +1 more source

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