Results 61 to 70 of about 1,762,916 (284)

The heliospheric modulation of cosmic ray boron and carbon [PDF]

Annales Geophysicae, 2004
The observed boron to carbon ratio (B/C) at Earth provides a good measure of the overall secondary to primary ratio of galactic cosmic rays. This makes B/C an important constraint and test for the validity and general applicability of theoretical and ...
M. S. Potgieter, U. W. Langner
doaj   +1 more source

Flax Composites With Improved Interfacial Strength Through Microbially Induced Mineral Precipitation

Advanced Materials, EarlyView.
A bio‐inspired biomineralization strategy introduces an additional hierarchy to flax fiber composites. By controlling microbe‐mediated mineral particle deposition through tuned salt concentrations, stress transfer within the natural fiber composite is enhanced.
Deniz Sayinbas, Ingo Nettersheim, Jeong‐Joo Oh, Marie‐Eve Aubin‐Tam, Julie Teuwen, Kunal Masania   +5 more
wiley   +1 more source

PUI Heating in the Supersonic Solar Wind

The Astrophysical Journal
The outer heliosphere is profoundly influenced by nonthermal energetic pickup ions (PUIs), which dominate the internal pressure of the solar wind beyond ~10 au, surpassing both solar wind and magnetic pressures.
Parisa Mostafavi, Laxman Adhikari, Bishwas L. Shrestha, Gary P. Zank, Merav Opher, Matthew E. Hill, Heather A. Elliott, Pontus C. Brandt, Ralph L. McNutt, David J. McComas, Andrew R. Poppe, Elena Provornikova, Romina Nikoukar, Peter Kollmann, S. Alan Stern, Kelsi N. Singer, Anne Verbiscer, Joel Parker   +17 more
doaj   +1 more source

Sub‐Nanometer Cobalt on Tungsten Titanium Carbide MXene (W2TiC2Tx): An Electrocatalyst for Highly Efficient and Stable Alkaline Hydrogen Evolution at Industrial‐Scale Current Density

Advanced Materials, EarlyView.
A novel W2TiC2Tx MXene prepared through a MAX‐phase route supports sub‐nanometer Co for highly efficient alkaline hydrogen evolution. Strong Co–W interfacial interactions optimize hydrogen adsorption and catalytic activity, enabling low overpotentials of 63 mV at 10 mA cm−2, small Tafel slope of 44.3 mV dec−1, and exceptional durability at industrially
Xiaopeng Liu, Fan Yang, Deep M. Patel, Mohammad Albloushi, Qiqi Mao, Shan Jiang, Christian J. Breckner, Connor W. Schroeder, Ruoyu Cui, Tao Ma, Dapeng Jing, Wenyu Huang, Jeffrey T. Miller, Wenzhen Li, Luke T. Roling, Yue Wu   +15 more
wiley   +1 more source

Scaling of solar wind e and the AU, AL and AE indices as seen by WIND [PDF]

, 2002
We apply the finite size scaling technique to quantify the statistical properties of fluctuations in AU, AL and AE indices and in the parameter that represents energy input from the solar wind into the magnetosphere. We find that the exponents needed to
Chapman, S.C., Freeman, M. P. (Mervyn P.), Freeman, M.P., Hnat, B., Rowlands, G., Watkins, N.W., Rowlands, G. (George), Watkins, Nicholas W., Chapman, Sandra C.   +8 more
core   +2 more sources

Diketopyrrolopyrrole‐Based Cation as a Semiconducting Spacer in Layered Perovskite

Advanced Materials, EarlyView.
Diketopyrrolopyrrole cation incorporated layered perovskites exhibiting extended absorption profiles and enhanced charge carrier mobility with type‐II energy alignment. The improved photoconversion efficiency demonstrates the critical role of incorporating organic semiconductors in optimizing layered perovskite performance.
Waygen Thor, Colin Jeanguenat, Louise De Cian, Demetra Tsokkou, Parnian Ferdowsi, Nicolas J. Diercks, Natalie Banerji, Jun‐Ho Yum, Kevin Sivula   +8 more
wiley   +1 more source

Viewing Global Changes in the Heliosheath with IMAP’s Energetic Neutral Atom Imagers

The Astrophysical Journal
We present a simulation analysis of NASA’s upcoming Interstellar Mapping and Acceleration Probe (IMAP) energetic neutral atom (ENA) instrument capabilities in viewing “global” changes in the heliosheath (HS) plasma, and the resulting ENA flux changes ...
E. J. Zirnstein, J. Heerikhuisen, D. J. McComas, J. Bower, G. Clark, M. A. Dayeh, H. O. Funsten, M. Gkioulidou, D. G. Mitchell, D. B. Reisenfeld, N. A. Schwadron   +10 more
doaj   +1 more source

Voyager observations of the interaction of the heliosphere with the interstellar medium

Journal of Advanced Research, 2013
This paper provides a brief review and update on the Voyager observations of the interaction of the heliosphere with the interstellar medium. Voyager has found many surprises: (1) a new energetic particle component which is accelerated at the termination
John D. Richardson
doaj   +1 more source

Efficient Sunlight Degradation of Wide‐Spectrum Antibiotics Through Enhanced Charge Separation in SnTCPP NPs‐Nb2C Schottky Heterojunction: Ultrafast Carrier Dynamic Study

Advanced Materials Interfaces, EarlyView.
Due to enhanced charge transfer and carrier mobility on the surface, the SnTCPP NPs‐Nb2C Schottky heterojunctions demonstrate exceptional sunlight‐driven catalytic activity toward tetracycline antibiotics and ofloxacin degradation, achieving a removal efficiency of up to 99.9% within 60 min of irradiation, both in model wastewater and natural water ...
Juanxuan Guo, Sheng Liao, Ranye Liao, Xinyan Ke, Ming‐De Li, Li Dang   +5 more
wiley   +1 more source

Turbulence, Waves, and Taylor’s Hypothesis for Heliosheath Observations

The Astrophysical Journal
Magnetic field fluctuations measured in the heliosheath by the Voyager spacecraft are often characterized as compressible, as indicated by a strong fluctuating component parallel to the mean magnetic field.
L.-L. Zhao, G. P. Zank, M. Opher, B. Zieger, H. Li, V. Florinski, L. Adhikari, X. Zhu, M. Nakanotani   +8 more
doaj   +1 more source