Results 31 to 40 of about 22,047 (137)

Interplay Among Recent Trends in Climate Extremes, Vegetation Phenology, and Crop Production in the Southern Mediterranean Region

International Journal of Climatology, Volume 45, Issue 5, April 2025.
Using precipitation datasets and actual evapotranspiration, the SPEI indicates wetter cold seasons across Morocco, Algeria, and Tunisia, with this trend extending to warm seasons in some coastal regions. These changes align with observed changes in vegetation phenology, supporting extended growing seasons, increased maximum vegetation, and improved ...
Behnam Mirgol, Bastien Dieppois, Jessica Northey, Lionel Jarlan, Saïd Khabba, Michel Le Page, Jonathan Eden, Job Ekolu, Ikram El Hazdour, Gil Mahe   +9 more
wiley   +1 more source

Nuclear Reactions Rates Governing the Nucleosynthesis of Ti44

, 1998
Large excesses of Ca44 in certain presolar graphite and silicon carbide grains give strong evidence for Ti44 production in supernovae. Furthermore, recent detection of the Ti44 gamma-line from the Cas A SNR by CGRO/COMPTEL shows that radioactive Ti44 is ...
Clayton, D. D., Jin, L., Meyer, B. S., The, L. -S.   +3 more
core   +2 more sources

Structure and Problem Hardness: Goal Asymmetry and DPLL Proofs in
SAT-Based Planning [PDF]

, 2006
In Verification and in (optimal) AI Planning, a successful method is to formulate the application as boolean satisfiability (SAT), and solve it with state-of-the-art DPLL-based procedures.
Bart Selman, Carla Gomes, Joerg Hoffmann, Toby Walsh   +3 more
core   +6 more sources

A Note on Confidence Intervals for a Binomial p: Andersson–Nerman vs. Wilson

Stat, Volume 13, Issue 4, December 2024.
ABSTRACT Numerous approximate confidence intervals in closed form have been suggested over the years for the parameter p$$ p $$ in the binomial distribution. One of the oldest and still most advocated is the Wilson (score) interval, which in this article will be compared with the less well‐known Andersson–Nerman (henceforth AN) interval.
Per Gösta Andersson
wiley   +1 more source

Nuclear structure of 30S and its implications for nucleosynthesis in classical novae

, 2012
The uncertainty in the 29P(p,gamma)30S reaction rate over the temperature range of 0.1 - 1.3 GK was previously determined to span ~4 orders of magnitude due to the uncertain location of two previously unobserved 3+ and 2+ resonances in the 4.7 - 4.8 MeV ...
Abe, Y., Binh, D. N., Chen, A. A., Chen, J., Cherubini, S., Clark, J. A., Deibel, C. M., Fukuoka, S., Hashimoto, T., Hayakawa, T., Hendriks, J., Ishibashi, Y., Ito, Y., José, J., Kahl, D., Komatsubara, T., Kubono, S., Lennard, W. N., Longland, R., Moriguchi, T., Nagae, D., Nishikiori, R., Niwa, T., Ozawa, A., Parker, P. D., Seiler, D., Setoodehnia, K., Shizuma, T., Suzuki, H., Wrede, C., Yamaguchi, H., Yuasa, T.   +31 more
core   +1 more source

Transient stability of grid following inverters: The impacts of damping and fault ride‐through

Energy Internet, Volume 1, Issue 2, Page 150-165, November 2024.
Abstract The interaction of grid following inverters with a weak grid raises risks of transient instability. The effects of damping and fault‐ride through (FRT) make the transient dynamics more complicated. To investigate the impact of FRT on the transient stability of converters, this paper first employs the switch system theory to construct a ...
Qi Zhang, Yunjie Gu, Dong Liu, Chenxu Wang, Kehu Yang, Zhe Chen   +5 more
wiley   +1 more source

Downed woody debris microsite facilitation for planted black huckleberry seedling regeneration

Restoration Ecology, Volume 32, Issue 8, November 2024.
Black huckleberry (Vaccinium membranaceum)—an economically, ecologically, and culturally important shrub across the Pacific and Inland Northwest—is experiencing widespread declines in suitable habitat because of fire suppression and climate change. We tested the role of experimentally placed downed woody debris (DWD) in mitigating unsuitable habitat ...
Margaret I. Magee, Mark E. Swanson, Lukas Magee, Andrew S. Nelson, Henry D. Adams, Jason Reinhardt, Norris Boothe   +6 more
wiley   +1 more source

Polynomial Structure of the (Open) Topological String Partition Function

, 2007
In this paper we show that the polynomial structure of the topological string partition function found by Yamaguchi and Yau for the quintic holds for an arbitrary Calabi-Yau manifold with any number of moduli.
E. Witten, G. Bonelli, J. Walcher, J. Walcher, Jean Dominique Länge, M. Aganagic, M.-x. Huang, Murad Alim, P. Mayr, S. Hosono, S. Hosono, S. Yamaguchi, T.W. Grimm, Y. Konishi   +13 more
core   +1 more source

Non‐destructive thickness measurement of optically scattering polymer films using image processing

Engineering Reports, Volume 6, Issue 9, September 2024.
We establish a sample‐ and data‐processing pipeline that allows for high‐throughput optical microscope measurement of porous films, provided they are sufficiently optically scattering. Here, self‐limiting electrospray deposition is used to manufacture scattering films of different morphologies, which are then analyzed.
Noah M. McAllister, Robert A. Green‐Warren, Maxim Arkhipov, Jae‐Hwang Lee, Assimina A. Pelegri, Jonathan P. Singer   +5 more
wiley   +1 more source

Ecophysiological responses of native and introduced coastal tree species parasitized by Cassytha filiformis in Brunei

Plant-Environment Interactions, Volume 5, Issue 4, August 2024.
Our study aims to uncover the impacts of Cassytha filiformis on two native and two introduced hosts in terms of photosynthetic parameters, nutrient levels, and secondary bioactive compounds. Significant results were shown in certain nutrient contents, as well as total phenols and tannins in C. filiformis–host dynamics.
Roshanizah Rosli, Kushan U. Tennakoon, Faizah Metali   +2 more
wiley   +1 more source