Results 81 to 90 of about 635,017 (399)

Highly‐Entangled Hydrogel Electrolyte for Fast Charging/Discharging Properties in Aqueous Zinc Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A highly‐entangled polyacrylamide (HE‐PAM) hydrogel is designed as an aqueous electrolyte for the fast charging/discharging properties in Zn/MnO2 batteries. Such hydrogel electrolyte possessed excellent mechanical characters, stable cycling capability, and superb rate performance under high current densities. These characters can also be applied in the
Zhaoxi Shen   +11 more
wiley   +1 more source

Large financial crashes [PDF]

open access: yesPhysica A 245, 411-422 1997, 1997
We propose that large stock market crashes are analogous to critical points studied in statistical physics with log-periodic correction to scaling. We extend our previous renormalization group model of stock market prices prior to and after crashes [D. Sornette et al., J.Phys.I France 6, 167, 1996] by including the first non-linear correction.
arxiv   +1 more source

Comparing Prediction Performance for Crash Injury Severity Among Various Machine Learning and Statistical Methods

open access: yesIEEE Access, 2018
Crash injury severity prediction is a promising research target in traffic safety. Traditionally, various statistical methods were used for modeling crash injury severities.
Jian Zhang   +3 more
semanticscholar   +1 more source

Rigid Fluorescent Indacenetetraone‐Based Semiconducting Polymers via Knoevenagel Condensation

open access: yesAdvanced Functional Materials, EarlyView.
New donor–acceptor polymers prepared by Knoevenagel condensation of indacenedithiophene‐ and indacenedifuran‐based aldehydes reveal an exceptionally rigid backbone, which is manifested in the remarkably narrow absorption and emission bands in red to near‐infrared region.
So‐Huei Kang   +7 more
wiley   +1 more source

In-depth research into rural road crashes [PDF]

open access: yes, 2008
This report was produced under an agreement between Transport SA and the Road Accident Research Unit formed in the late 1990s. Due to various delays in the publication of this report, Transport SA has since become the Department for Transport, Energy and
Baldock, M., Kloeden, C., McLean, J.
core  

From Financial Crash to Debt Crisis

open access: yes, 2010
Newly developed long historical time series on public debt, along with modern data on external debts, allow a deeper analysis of the cycles underlying serial debt and banking crises.
Carmen M. Reinhart, Kenneth S. Rogoff
semanticscholar   +1 more source

Quasi‐Static Compression Response and Energy Absorption of CNTF/EP Origami Thin‐Walled Tubes

open access: yesAdvanced Materials Interfaces, EarlyView.
This research innovatively uses CNTF/EP composite material to fabricate origami thin‐walled tubes, investigating their quasi‐static compression deformation modes and performance. It examines the effects of introducing secondary creases on deformation modes and the energy absorption metrics of the thin‐walled tubes.
Bowen Zhang   +5 more
wiley   +1 more source

Efficiently Bounding the Probabilities of Vehicle Collision at Intelligent Intersections

open access: yesIEEE Open Journal of Intelligent Transportation Systems, 2021
Intelligent intersections have the potential to serve as an integral part of tomorrow’s traffic infrastructure. Wireless communication is key to enabling such technology.
Johan Thunberg   +3 more
doaj   +1 more source

The crash of the knowledge economy [PDF]

open access: yesCambridge Journal of Economics, 2009
This paper advances the hypothesis that some of the roots of the present crisis are to be found in the present institutions of the knowledge economy. While protectionism is seen as a possible dangerous outcome of the crisis, the extent of protectionism inherent to the strengthening and globalisation of intellectual property rights (IPRs) associated, in
PAGANO, UGO, ROSSI, MARIA ALESSANDRA
openaire   +4 more sources

Production of Parallel Aligned Nanofiber Rovings From Continuous Bundles

open access: yesAdvanced Materials Technologies, EarlyView.
Continuous nanofiber rovings are produced via electrospinning. The integration of false twisting and drawing improved fiber properties. Optimized twisting increases fiber alignment and tensile strength. The drawing process reduces the average nanofiber diameter from 297 to 200 nm and decreases the standard deviation of alignment angles from 14.2° to 8 ...
Behzat Yıldırım   +3 more
wiley   +1 more source

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