نتایج جستجو برای: dependence structure jel classification c60

تعداد نتایج: 2128447  

2016
Mohammad A Wahab Farzana Darain Azharul Karim Jorge N Beltramini

Nanoconfined synthesized crystalline fullerene mesoporous carbon (C60-FMC) with bimodal pore architectures of 4.95 nm and 10-15 nm pore sizes characterized by XRD, TEM, nitrogen adsorption/ desorption isotherm and solid-state NMR, and the material was used for protein immobilization. The solid-state 13C NMR spectrum of C60-FMC along with XRD, BET and TEM confirms the formation of fullerene meso...

2005
José Varejão Pedro Portugal

Employment Dynamics and the Structure of Labor Adjustment Costs In this paper we document the patterns of employment adjustment at the micro-level. We find clear evidence of lumpy adjustment consistent with the presence of non-convexities in the adjustment technology inaction is pervasive, action spells are short-lived, extreme adjustment episodes occur and are responsible for a non-trivial sha...

2009
Byoungnam Park Peerasak Paoprasert Padma Gopalan T. F. Kuech Paul G. Evans

A C60-terminated self-assembled monolayer can be used to place molecular acceptor states at the interface between the semiconductor and gate insulator of an organic field effect transistor. The time dependence of the photoinduced charge transfer between pentacene and C60 has a fast component with a characteristic time of 1.9 s and slower component with a time constant of 32 and 48 s at the begi...

1998
Y. Maniwa N. Muroga N. Sato H. Tou H. Mitani K. Tanigaki M. M. Labes

The static spin susceptibility, xs SQ and xs NMR , in C60 superconductors K3C60 and Rb3C60 was studied using a dc superconducting quantum interference device magnetometer and C NMR. We found that xs SQ has a peculiar temperature ~T! dependence behaving as (12CT) with a positive constant C;(1310) deg, contrary to the almost T independent xs NMR . These observations indicate a possibility that th...

Journal: :international journal of nano dimension 0
elahe naderi department of medicinal chemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran mahmoud mirzaei department of medicinal chemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran lotfollah saghaie department of medicinal chemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran ghadamali khodarahmi department of medicinal chemistry, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran oguz gulseren department of physics, faculty of science, bilkent university, ankara, turkey

density functional theory (dft) based calculations have been performed to examine the relaxations of tautomers of 4–hydroxy–6–methylpyridin–2(1h)–one (mpo), as a representative of pyridinone derivatives, at the fullerene (c60) surfaces. optimized molecular properties including energies, dipole moments and atomic scale quadrupole coupling constants (cq) have been evaluated to investigate the str...

2012
Mohamed M. El-Okr Medhat A. Ibrahim

C59-X (X= C, N, P, As and Sb) was studied by Density Functional Theory DFT at the B3LYP/3-21G** level. Group V elements have been selected to be substituted in the fullerene-C60 cage in order to show the effect of such substations upon structural and electronic properties of the studied molecules. It is found that elements of Group V doped C60 have an electronic structure similar to those of n-...

2004
Lars Grüne Willi Semmler

The attempt to match asset price characteristics such as the risk-free interest rate, equity premium and the Sharpe ratio with data for models with instantaneous consumption decisions and time separable preferences has not been very successful. Many recent versions of asset pricing models have, in order to match those financial characteristics better with the data, employed habit formation wher...

2011
Susan Athey Jonathan Levin Siisan Athey

A seminal theorem due to Blackwell (1951) shows that every Bayesian decision-maker prefers an informative signal Y to another signal X if and only if Y is statistically sufficient for X. Sufficiency is an imduly strong requirement in most economic problems because it does not incorporate any structure the model might impose. In this paper, we develop a general theory of information that allows ...

2009

Using copulas, in this paper we investigate the static and dynamic extreme dependence of international stock markets. We examine both the structure and the degree of the dependence. The data set are daily returns on the stock indices from countries in North America, Europe and East Asia. The results show signi…cant asymmetric tail dependence in most of the return pairs, with the overall lower t...

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