Results 41 to 50 of about 150,628 (306)

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

open access: yesAdvanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong   +16 more
wiley   +1 more source

The Application of Imperialist Competitive Algorithm for Fuzzy Random Portfolio Selection Problem

open access: yes, 2013
This paper presents an implementation of the Imperialist Competitive Algorithm (ICA) for solving the fuzzy random portfolio selection problem where the asset returns are represented by fuzzy random variables.
Mohasefi, Jamshid Bagherzadeh   +1 more
core   +1 more source

The Glacier Complexes of the Mountain Massifs of the North-West of Inner Asia and their Dynamics [PDF]

open access: yes, 2011
The subject of this paper is the glaciation of the mountain massifs Mongun-Taiga, Tavan-Boghd-Ola, Turgeni- Nuru, and Harhira-Nuru. The glaciation is represented mostly by small forms that sometimes form a single complex of domeshaped peaks ...
Chistyakov , Kirill V.   +3 more
core   +2 more sources

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

The Islamic State as an empire of nostalgia [PDF]

open access: yes, 2016
Primary empires were the product of internal development and self-sustaining through the exploitation of their own resources, but there were also historically a large number of “shadow empires.” These were imperial polities that were the products of ...
Barfield, Thomas
core  

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

open access: yesAdvanced Functional Materials, EarlyView.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya   +6 more
wiley   +1 more source

Are Empires Striking Back? A Political and Cultural Comparison of the European Union and Russia

open access: yesEconomics and Culture, 2016
The article is a position paper focusing on the current standoff between two regional powers, the European Union and Russia. Following a series of crises, in particular the annexation of Crimea by the Russian Federation in 2014, the relationship between ...
Dumetz Jérôme
doaj   +1 more source

The History of Imperial Politics and the Politics of Imperial History

open access: yesJournal of Political Science: Bulletin of Yerevan University, 2022
This article constitutes a discourse of the essence of the empire, and on ensuing contradictions in what otherwise had been a commonly experienced history by Turks and Armenians in the Ottoman Empire. This article is a moment of reflection on the author’
Gerard J. Libaridian
doaj   +1 more source

Universal In Situ Isotope Exchange Raman Spectroscopy (IERS) Methodology for Measuring Oxygen Surface Exchange Dynamics Using a Probe Layer

open access: yesAdvanced Functional Materials, EarlyView.
A bespoke multilayer thin film configuration has been designed, which overcomes the material dependency of conventional isotope exchange Raman spectroscopy (IERS). This universal IERS methodology is efficient, non‐destructive and provides additional structural information and time resolution, which can be further extended to various isotopic elements ...
Zonghao Shen   +7 more
wiley   +1 more source

Introduction [PDF]

open access: yes, 1998
The costs and benefits of European Imperialism from the conquest of Ceuta, 1415, to the Treaty of Lusaka, 1974.Twelfth International Economic History Congress. Madrid, 1998.Patrick K.
O'Brien, Patrick K.   +1 more
core  

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