Results 111 to 120 of about 170,230 (300)

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

open access: yesAdvanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon   +4 more
wiley   +1 more source

Determination of the HMX and RDX content in synthesized energetic material by HPLC, FT-MIR, and FT-NIR spectroscopies

open access: yesQuímica Nova, 2004
A new method has been developed for determining the content of mixtures of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), the HMX/RDX ratio, in explosive compositions by Fourier transform ...
Elizabeth C. Mattos   +5 more
doaj   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

Variations in Site Conditions and Blast Geometry on The Formation of Toxic Gas (Fumes) in Open-Pit Coal Mining

open access: yesAceh International Journal of Science and Technology
The blasting activity generates one of the effects in the form of toxic gases (fumes) that can disturb living beings around them. Fumes formation is formed by the reaction of the explosive material not in a zero oxygen balance condition, and is ...
Pantjanita Novi Hartami   +4 more
doaj   +1 more source

Analysis and evaluation of fragment size distributions in rock blasting at the Erdenet Mine [PDF]

open access: yes, 2015
Master's Project (M.S.) University of Alaska Fairbanks, 2015Rock blasting is one of the most important operations in mining. It significantly affects the subsequent comminution processes and, therefore, is critical to successful mining productions.
Dondov, Erdenebaatar   +1 more
core  

Activation of MHD reconnection on ideal timescales

open access: yes, 2016
Magnetic reconnection in laboratory, space and astrophysical plasmas is often invoked to explain explosive energy release and particle acceleration. However, the timescales involved in classical models within the macroscopic MHD regime are far too slow ...
Del Zanna, L.   +4 more
core   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

open access: yesAdvanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu   +5 more
wiley   +1 more source

MANAGEMENT OF INVESTIGATING THE EFFECT OF BLASTING AND IMPACT LOAD IN VARIOUS STRUCTURES [PDF]

open access: yesJournal of Engineering Science (Chişinău), 2019
Increasing the number of explosive threats on the structures is a warning in the direction of safety. The design of structures against the blast loads in the past has been limited to military buildings and so on.
Beykzade, Mohammad, Beykzade, Sepide
doaj  

Testing for rational bubbles in a co-explosive vector autoregression [PDF]

open access: yes
We derive the parameter restrictions that a standard equity market model implies for a bivariate vector autoregression for stock prices and dividends, and we show how to test these restrictions using likelihood ratio tests.
Bent Nielsen, Tom Engsted
core  

Massive Stars and their Supernovae

open access: yes, 2010
Massive stars and their supernovae are prominent sources of radioactive isotopes, the observations of which thus can help to improve our astrophysical models of those.
Diehl, Roland   +3 more
core   +1 more source

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